[GIT PULL 00/21] perf/core improvements and fixes

[GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>

Hi Ingo,

	Please consider pulling,

Best Regards,

-Arnaldo

The following changes since commit 6d65894bc028d0342829ea1e64c9e9efad571124:

  tools lib traceevent: Update kvm plugin with is_writable_pte helper (2013-12-04 15:38:14 -0300)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo

for you to fetch changes up to e993d10caeb6dca690dbaf86e1981ba240d1414a:

  perf symbols: fix bug in usage of the basename() function (2013-12-09 15:41:59 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

. Add an option in 'perf script' to print the source line number, from Adrian Hunter

. Fix symoff printing in callchains in 'perf script', from Adrian Hunter.

. Assorted mmap_pages handling fixes, from Adrian Hunter.

. Fix summary percentage when processing files in 'perf trace', fom David Ahern.

. Handle old kernels where the "raw_syscalls" tracepoints were called plan "syscalls",
  in 'perf trace', from David Ahern.

. Several man pages typo fixes from Dongsheng Yang.

. Add '-v' option to 'perf kvm', from Dongsheng Yang.

. Make perf kvm diff support --guestmount, from Dongsheng Yang.

. Get rid of several die() calls in libtraceevent, from Namhyung Kim.

. Use basename() in a more robust way, to avoid problems related to different
  system library implementations for that function, from Stephane Eranian.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Adrian Hunter (6):
      perf script: Fix symoff printing in callchains
      perf script: Add an option to print the source line number
      perf record: Fix display of incorrect mmap pages
      perf evlist: Remove unnecessary parentheses
      perf evlist: Fix max mmap_pages
      perf evlist: Fix mmap pages rounding to power of 2

David Ahern (2):
      perf trace: Add support for syscalls vs raw_syscalls
      perf trace: Fix summary percentage when processing files

Dongsheng Yang (6):
      perf kvm: Introduce option -v for perf kvm command.
      perf kvm: Fix bug in 'stat report'
      perf archive: Remove duplicated 'runs' in man page
      perf annotate: Fix typo
      perf kvm: Move code to generate filename for perf-kvm to function.
      perf kvm: Make perf kvm diff support --guestmount.

Namhyung Kim (5):
      tools lib traceevent: Get rid of malloc_or_die() in pevent_filter_alloc()
      tools lib traceevent: Get rid of malloc_or_die() in add_event()
      tools lib traceevent: Get rid of die() in create_arg_item()
      tools lib traceevent: Get rid of malloc_or_die() in pevent_filter_add_filter_str()
      tools lib traceevent: Get rid of die() in pevent_filter_clear_trivial()

Stephane Eranian (1):
      perf symbols: fix bug in usage of the basename() function

Steven Rostedt (1):
      tools lib traceevent: Report better error message on bad function args

 tools/lib/traceevent/event-parse.c        | 28 +++++++++------
 tools/lib/traceevent/event-parse.h        |  2 +-
 tools/lib/traceevent/parse-filter.c       | 57 ++++++++++++++++++++++++-------
 tools/perf/Documentation/perf-archive.txt |  6 ++--
 tools/perf/Documentation/perf-kvm.txt     |  7 ++--
 tools/perf/Documentation/perf-script.txt  |  2 +-
 tools/perf/builtin-annotate.c             |  2 +-
 tools/perf/builtin-diff.c                 |  3 +-
 tools/perf/builtin-kvm.c                  | 11 +++---
 tools/perf/builtin-record.c               |  2 +-
 tools/perf/builtin-script.c               | 10 ++++++
 tools/perf/builtin-trace.c                | 32 +++++++++++++++--
 tools/perf/util/dso.c                     | 29 +++++++++++++++-
 tools/perf/util/evlist.c                  | 10 +++---
 tools/perf/util/map.c                     | 17 +++++++++
 tools/perf/util/map.h                     |  2 ++
 tools/perf/util/session.c                 | 15 +++++++-
 tools/perf/util/session.h                 |  1 +
 tools/perf/util/util.c                    | 14 ++++++++
 tools/perf/util/util.h                    | 14 ++++++++
 20 files changed, 214 insertions(+), 50 deletions(-)

[PATCH 01/21] perf trace: Add support for syscalls vs raw_syscalls

[Arnaldo Carvalho de Melo]

From: David Ahern <dsahern@gmail.com>

Older kernels (e.g., RHEL6) do system call tracing via
syscalls:sys_{enter,exit} rather than raw_syscalls. Update perf-trace to
detect lack of raw_syscalls support and try syscalls.

Signed-off-by: David Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1386211302-31303-2-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 28 ++++++++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 56afe339661a..a7aa771a98e6 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -12,6 +12,7 @@
 #include "util/thread_map.h"
 #include "util/stat.h"
 #include "trace-event.h"
+#include "util/parse-events.h"
 
 #include <libaudit.h>
 #include <stdlib.h>
@@ -173,6 +174,10 @@ static struct perf_evsel *perf_evsel__syscall_newtp(const char *direction, void
 {
 	struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction);
 
+	/* older kernel (e.g., RHEL6) use syscalls:{enter,exit} */
+	if (evsel == NULL)
+		evsel = perf_evsel__newtp("syscalls", direction);
+
 	if (evsel) {
 		if (perf_evsel__init_syscall_tp(evsel, handler))
 			goto out_delete;
@@ -1801,10 +1806,11 @@ static int trace__record(int argc, const char **argv)
 		"-R",
 		"-m", "1024",
 		"-c", "1",
-		"-e", "raw_syscalls:sys_enter,raw_syscalls:sys_exit",
+		"-e",
 	};
 
-	rec_argc = ARRAY_SIZE(record_args) + argc;
+	/* +1 is for the event string below */
+	rec_argc = ARRAY_SIZE(record_args) + 1 + argc;
 	rec_argv = calloc(rec_argc + 1, sizeof(char *));
 
 	if (rec_argv == NULL)
@@ -1813,6 +1819,17 @@ static int trace__record(int argc, const char **argv)
 	for (i = 0; i < ARRAY_SIZE(record_args); i++)
 		rec_argv[i] = record_args[i];
 
+	/* event string may be different for older kernels - e.g., RHEL6 */
+	if (is_valid_tracepoint("raw_syscalls:sys_enter"))
+		rec_argv[i] = "raw_syscalls:sys_enter,raw_syscalls:sys_exit";
+	else if (is_valid_tracepoint("syscalls:sys_enter"))
+		rec_argv[i] = "syscalls:sys_enter,syscalls:sys_exit";
+	else {
+		pr_err("Neither raw_syscalls nor syscalls events exist.\n");
+		return -1;
+	}
+	i++;
+
 	for (j = 0; j < (unsigned int)argc; j++, i++)
 		rec_argv[i] = argv[j];
 
@@ -2048,6 +2065,10 @@ static int trace__replay(struct trace *trace)
 
 	evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
 						     "raw_syscalls:sys_enter");
+	/* older kernels have syscalls tp versus raw_syscalls */
+	if (evsel == NULL)
+		evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
+							     "syscalls:sys_enter");
 	if (evsel == NULL) {
 		pr_err("Data file does not have raw_syscalls:sys_enter event\n");
 		goto out;
@@ -2061,6 +2082,9 @@ static int trace__replay(struct trace *trace)
 
 	evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
 						     "raw_syscalls:sys_exit");
+	if (evsel == NULL)
+		evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
+							     "syscalls:sys_exit");
 	if (evsel == NULL) {
 		pr_err("Data file does not have raw_syscalls:sys_exit event\n");
 		goto out;
-- 
1.8.1.4

[PATCH 02/21] perf trace: Fix summary percentage when processing files

[Arnaldo Carvalho de Melo]

From: David Ahern <dsahern@gmail.com>

Getting a divide by 0 when events are processed from a file:

   perf trace -i perf.data -s
   ...
   dnsmasq (1684), 10 events, inf%, 0.000 msec

The problem is that the event count is not incremented as events are
processed. With this patch:

   perf trace -i perf.data -s
   ...
   dnsmasq (1684), 10 events, 8.9%, 0.000 msec

Signed-off-by: David Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1386211302-31303-4-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index a7aa771a98e6..56bbca5bc2dc 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1770,8 +1770,10 @@ static int trace__process_sample(struct perf_tool *tool,
 	if (!trace->full_time && trace->base_time == 0)
 		trace->base_time = sample->time;
 
-	if (handler)
+	if (handler) {
+		++trace->nr_events;
 		handler(trace, evsel, sample);
+	}
 
 	return err;
 }
-- 
1.8.1.4

[PATCH 03/21] tools lib traceevent: Report better error message on bad function args

[Arnaldo Carvalho de Melo]

From: Steven Rostedt <rostedt@goodmis.org>

When Jiri Olsa was writing a function callback for
scsi_trace_parse_cdb(), he thought that the traceevent library had a
bug in it because he was getting this error:

  Error: expected ')' but read ','
  Error: expected ')' but read ','
  Error: expected ')' but read ','
  Error: expected ')' but read ','

But in truth, he didn't have the write number of arguments for the
function callback, and the error was the library detecting the
discrepancy. A better error message would have prevented the confusion:

  Error: function 'scsi_trace_parse_cdb()' only expects 2 arguments but event scsi_dispatch_cmd_timeout has more
  Error: function 'scsi_trace_parse_cdb()' only expects 2 arguments but event scsi_dispatch_cmd_start has more
  Error: function 'scsi_trace_parse_cdb()' only expects 2 arguments but event scsi_dispatch_cmd_error has more
  Error: function 'scsi_trace_parse_cdb()' only expects 2 arguments but event scsi_dispatch_cmd_done has more

Or

  Error: function 'scsi_trace_parse_cdb()' expects 4 arguments but event scsi_dispatch_cmd_timeout only uses 3
  Error: function 'scsi_trace_parse_cdb()' expects 4 arguments but event scsi_dispatch_cmd_start only uses 3
  Error: function 'scsi_trace_parse_cdb()' expects 4 arguments but event scsi_dispatch_cmd_error only uses 3
  Error: function 'scsi_trace_parse_cdb()' expects 4 arguments but event scsi_dispatch_cmd_done only uses 3

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/n/tip-a4c34w62vl0diitvxb7bt3er@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 28 ++++++++++++++++++----------
 1 file changed, 18 insertions(+), 10 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 9849873265d4..22566c271275 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -2710,7 +2710,6 @@ process_func_handler(struct event_format *event, struct pevent_function_handler
 	struct print_arg *farg;
 	enum event_type type;
 	char *token;
-	const char *test;
 	int i;
 
 	arg->type = PRINT_FUNC;
@@ -2727,15 +2726,19 @@ process_func_handler(struct event_format *event, struct pevent_function_handler
 		}
 
 		type = process_arg(event, farg, &token);
-		if (i < (func->nr_args - 1))
-			test = ",";
-		else
-			test = ")";
-
-		if (test_type_token(type, token, EVENT_DELIM, test)) {
-			free_arg(farg);
-			free_token(token);
-			return EVENT_ERROR;
+		if (i < (func->nr_args - 1)) {
+			if (type != EVENT_DELIM || strcmp(token, ",") != 0) {
+				warning("Error: function '%s()' expects %d arguments but event %s only uses %d",
+					func->name, func->nr_args,
+					event->name, i + 1);
+				goto err;
+			}
+		} else {
+			if (type != EVENT_DELIM || strcmp(token, ")") != 0) {
+				warning("Error: function '%s()' only expects %d arguments but event %s has more",
+					func->name, func->nr_args, event->name);
+				goto err;
+			}
 		}
 
 		*next_arg = farg;
@@ -2747,6 +2750,11 @@ process_func_handler(struct event_format *event, struct pevent_function_handler
 	*tok = token;
 
 	return type;
+
+err:
+	free_arg(farg);
+	free_token(token);
+	return EVENT_ERROR;
 }
 
 static enum event_type
-- 
1.8.1.4

[PATCH 04/21] perf script: Fix symoff printing in callchains

[Arnaldo Carvalho de Melo]

From: Adrian Hunter <adrian.hunter@intel.com>

The address being used to calculate the offset was the memory address
but the address needed is the address mapped to the dso. i.e. the 'addr'
member of 'struct addr_location'

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1386315778-11633-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/session.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 8a7da6f4a569..c236b38ed02b 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1515,6 +1515,8 @@ void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample,
 			node_al = *al;
 
 		while (stack_depth) {
+			u64 addr = 0;
+
 			node = callchain_cursor_current(&callchain_cursor);
 			if (!node)
 				break;
@@ -1525,10 +1527,13 @@ void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample,
 			if (print_ip)
 				printf("%c%16" PRIx64, s, node->ip);
 
+			if (node->map)
+				addr = node->map->map_ip(node->map, node->ip);
+
 			if (print_sym) {
 				printf(" ");
 				if (print_symoffset) {
-					node_al.addr = node->ip;
+					node_al.addr = addr;
 					node_al.map  = node->map;
 					symbol__fprintf_symname_offs(node->sym, &node_al, stdout);
 				} else
-- 
1.8.1.4

[PATCH 05/21] perf script: Add an option to print the source line number

[Arnaldo Carvalho de Melo]

From: Adrian Hunter <adrian.hunter@intel.com>

Add field 'srcline' that displays the source file name and line number
associated with the sample ip.  The information displayed is the same as
from addr2line.

 $ perf script -f comm,tid,pid,time,ip,sym,dso,symoff,srcline
            grep 10701/10701 2497321.421013:  ffffffff81043ffa native_write_msr_safe+0xa ([kernel.kallsyms])
  /usr/src/debug/kernel-3.9.fc17/linux-3.9.10-100.fc17.x86_64/arch/x86/include/asm/msr.h:95
            grep 10701/10701 2497321.421984:  ffffffff8165b6b3 _raw_spin_lock+0x13 ([kernel.kallsyms])
  /usr/src/debug/kernel-3.9.fc17/linux-3.9.10-100.fc17.x86_64/arch/x86/include/asm/spinlock.h:54
            grep 10701/10701 2497321.421990:  ffffffff810b64b3 tick_sched_timer+0x53 ([kernel.kallsyms])
  /usr/src/debug/kernel-3.9.fc17/linux-3.9.10-100.fc17.x86_64/kernel/time/tick-sched.c:840
            grep 10701/10701 2497321.421992:  ffffffff8106f63f run_timer_softirq+0x2f ([kernel.kallsyms])
  /usr/src/debug/kernel-3.9.fc17/linux-3.9.10-100.fc17.x86_64/kernel/timer.c:1372

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1386315778-11633-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-script.txt |  2 +-
 tools/perf/builtin-script.c              | 10 ++++++++++
 tools/perf/util/map.c                    | 17 +++++++++++++++++
 tools/perf/util/map.h                    |  2 ++
 tools/perf/util/session.c                |  8 ++++++++
 tools/perf/util/session.h                |  1 +
 6 files changed, 39 insertions(+), 1 deletion(-)

diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index cfdbb1e045b5..c2a5071cf8f8 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -115,7 +115,7 @@ OPTIONS
 -f::
 --fields::
         Comma separated list of fields to print. Options are:
-        comm, tid, pid, time, cpu, event, trace, ip, sym, dso, addr, symoff.
+        comm, tid, pid, time, cpu, event, trace, ip, sym, dso, addr, symoff, srcline.
         Field list can be prepended with the type, trace, sw or hw,
         to indicate to which event type the field list applies.
         e.g., -f sw:comm,tid,time,ip,sym  and -f trace:time,cpu,trace
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 4484886dcf08..7a571fb7eb8a 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -43,6 +43,7 @@ enum perf_output_field {
 	PERF_OUTPUT_DSO             = 1U << 9,
 	PERF_OUTPUT_ADDR            = 1U << 10,
 	PERF_OUTPUT_SYMOFFSET       = 1U << 11,
+	PERF_OUTPUT_SRCLINE         = 1U << 12,
 };
 
 struct output_option {
@@ -61,6 +62,7 @@ struct output_option {
 	{.str = "dso",   .field = PERF_OUTPUT_DSO},
 	{.str = "addr",  .field = PERF_OUTPUT_ADDR},
 	{.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET},
+	{.str = "srcline", .field = PERF_OUTPUT_SRCLINE},
 };
 
 /* default set to maintain compatibility with current format */
@@ -210,6 +212,11 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel,
 		       "to DSO.\n");
 		return -EINVAL;
 	}
+	if (PRINT_FIELD(SRCLINE) && !PRINT_FIELD(IP)) {
+		pr_err("Display of source line number requested but sample IP is not\n"
+		       "selected. Hence, no address to lookup the source line number.\n");
+		return -EINVAL;
+	}
 
 	if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) &&
 		perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID",
@@ -245,6 +252,9 @@ static void set_print_ip_opts(struct perf_event_attr *attr)
 
 	if (PRINT_FIELD(SYMOFFSET))
 		output[type].print_ip_opts |= PRINT_IP_OPT_SYMOFFSET;
+
+	if (PRINT_FIELD(SRCLINE))
+		output[type].print_ip_opts |= PRINT_IP_OPT_SRCLINE;
 }
 
 /*
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index ef5bc913ca7a..9b9bd719aa19 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -11,6 +11,7 @@
 #include "strlist.h"
 #include "vdso.h"
 #include "build-id.h"
+#include "util.h"
 #include <linux/string.h>
 
 const char *map_type__name[MAP__NR_TYPES] = {
@@ -252,6 +253,22 @@ size_t map__fprintf_dsoname(struct map *map, FILE *fp)
 	return fprintf(fp, "%s", dsoname);
 }
 
+int map__fprintf_srcline(struct map *map, u64 addr, const char *prefix,
+			 FILE *fp)
+{
+	char *srcline;
+	int ret = 0;
+
+	if (map && map->dso) {
+		srcline = get_srcline(map->dso,
+				      map__rip_2objdump(map, addr));
+		if (srcline != SRCLINE_UNKNOWN)
+			ret = fprintf(fp, "%s%s", prefix, srcline);
+		free_srcline(srcline);
+	}
+	return ret;
+}
+
 /**
  * map__rip_2objdump - convert symbol start address to objdump address.
  * @map: memory map
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index e4e259c3ba16..18068c6b71c1 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -103,6 +103,8 @@ struct map *map__clone(struct map *map);
 int map__overlap(struct map *l, struct map *r);
 size_t map__fprintf(struct map *map, FILE *fp);
 size_t map__fprintf_dsoname(struct map *map, FILE *fp);
+int map__fprintf_srcline(struct map *map, u64 addr, const char *prefix,
+			 FILE *fp);
 
 int map__load(struct map *map, symbol_filter_t filter);
 struct symbol *map__find_symbol(struct map *map,
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index c236b38ed02b..e748f29c53cf 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1497,6 +1497,7 @@ void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample,
 	int print_dso = print_opts & PRINT_IP_OPT_DSO;
 	int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET;
 	int print_oneline = print_opts & PRINT_IP_OPT_ONELINE;
+	int print_srcline = print_opts & PRINT_IP_OPT_SRCLINE;
 	char s = print_oneline ? ' ' : '\t';
 
 	if (symbol_conf.use_callchain && sample->callchain) {
@@ -1546,6 +1547,10 @@ void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample,
 				printf(")");
 			}
 
+			if (print_srcline)
+				map__fprintf_srcline(node->map, addr, "\n  ",
+						     stdout);
+
 			if (!print_oneline)
 				printf("\n");
 
@@ -1575,6 +1580,9 @@ next:
 			map__fprintf_dsoname(al->map, stdout);
 			printf(")");
 		}
+
+		if (print_srcline)
+			map__fprintf_srcline(al->map, al->addr, "\n  ", stdout);
 	}
 }
 
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 004d3e8116aa..2a3955ea4fd8 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -45,6 +45,7 @@ struct perf_session {
 #define PRINT_IP_OPT_DSO		(1<<2)
 #define PRINT_IP_OPT_SYMOFFSET	(1<<3)
 #define PRINT_IP_OPT_ONELINE	(1<<4)
+#define PRINT_IP_OPT_SRCLINE	(1<<5)
 
 struct perf_tool;
 
-- 
1.8.1.4

[PATCH 06/21] perf record: Fix display of incorrect mmap pages

[Arnaldo Carvalho de Melo]

From: Adrian Hunter <adrian.hunter@intel.com>

'mmap_pages' is 'unsigned int' not 'int' e.g.

  perf record -m2147483648 uname
  Permission error mapping pages.
  Consider increasing /proc/sys/kernel/perf_event_mlock_kb,
  or try again with a smaller value of -m/--mmap_pages.
  (current value: -2147483648)

Fixed:

  perf record -m2147483648 uname
  Permission error mapping pages.
  Consider increasing /proc/sys/kernel/perf_event_mlock_kb,
  or try again with a smaller value of -m/--mmap_pages.
  (current value: 2147483648)

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1386595120-22978-5-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-record.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index d93e2eef0979..c1c1200d2f0a 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -224,7 +224,7 @@ try_again:
 			       "Consider increasing "
 			       "/proc/sys/kernel/perf_event_mlock_kb,\n"
 			       "or try again with a smaller value of -m/--mmap_pages.\n"
-			       "(current value: %d)\n", opts->mmap_pages);
+			       "(current value: %u)\n", opts->mmap_pages);
 			rc = -errno;
 		} else {
 			pr_err("failed to mmap with %d (%s)\n", errno, strerror(errno));
-- 
1.8.1.4

[PATCH 07/21] perf evlist: Remove unnecessary parentheses

[Arnaldo Carvalho de Melo]

From: Adrian Hunter <adrian.hunter@intel.com>

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1386595120-22978-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 7bb6ee1ca19f..4d0945c96ab2 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -732,7 +732,7 @@ static long parse_pages_arg(const char *str, unsigned long min,
 			return -EINVAL;
 	}
 
-	if ((pages == 0) && (min == 0)) {
+	if (pages == 0 && min == 0) {
 		/* leave number of pages at 0 */
 	} else if (pages < (1UL << 31) && !is_power_of_2(pages)) {
 		/* round pages up to next power of 2 */
-- 
1.8.1.4

[PATCH 08/21] perf evlist: Fix max mmap_pages

[Arnaldo Carvalho de Melo]

From: Adrian Hunter <adrian.hunter@intel.com>

'SIZE_MAX / page_size' is an upper limit for the maximum number of mmap
pages, not a lower limit.  Change the condition accordingly.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1386595120-22978-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 4d0945c96ab2..98ec96b3a744 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -754,7 +754,7 @@ int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
 	unsigned long max = UINT_MAX;
 	long pages;
 
-	if (max < SIZE_MAX / page_size)
+	if (max > SIZE_MAX / page_size)
 		max = SIZE_MAX / page_size;
 
 	pages = parse_pages_arg(str, 1, max);
-- 
1.8.1.4

[PATCH 09/21] perf evlist: Fix mmap pages rounding to power of 2

[Arnaldo Carvalho de Melo]

From: Adrian Hunter <adrian.hunter@intel.com>

'next_pow2()' only works for 'unsigned int' but the argument is
'unsigned long'.  Checking for values less than (1 << 31) ensures that
'next_pow2()' is not passed a value out of range but lets anything else
go through unvalidated.

As a result mmap_pages of zero is used e.g.

  perf record -v -m2147483649 uname
  mmap size 0B
  failed to mmap with 22 (Invalid argument)

Fixed:

  perf record -m2147483649 uname
  rounding mmap pages size to 17592186044416 bytes (4294967296 pages)
  Invalid argument for --mmap_pages/-m

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1386595120-22978-4-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c |  6 ++++--
 tools/perf/util/util.h   | 12 ++++++++++++
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 98ec96b3a744..af250556b33f 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -734,9 +734,11 @@ static long parse_pages_arg(const char *str, unsigned long min,
 
 	if (pages == 0 && min == 0) {
 		/* leave number of pages at 0 */
-	} else if (pages < (1UL << 31) && !is_power_of_2(pages)) {
+	} else if (!is_power_of_2(pages)) {
 		/* round pages up to next power of 2 */
-		pages = next_pow2(pages);
+		pages = next_pow2_l(pages);
+		if (!pages)
+			return -EINVAL;
 		pr_info("rounding mmap pages size to %lu bytes (%lu pages)\n",
 			pages * page_size, pages);
 	}
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index adb39f251f90..659abf30e01b 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -73,6 +73,7 @@
 #include <sys/ttydefaults.h>
 #include <lk/debugfs.h>
 #include <termios.h>
+#include <linux/bitops.h>
 
 extern const char *graph_line;
 extern const char *graph_dotted_line;
@@ -281,6 +282,17 @@ static inline unsigned next_pow2(unsigned x)
 	return 1ULL << (32 - __builtin_clz(x - 1));
 }
 
+static inline unsigned long next_pow2_l(unsigned long x)
+{
+#if BITS_PER_LONG == 64
+	if (x <= (1UL << 31))
+		return next_pow2(x);
+	return (unsigned long)next_pow2(x >> 32) << 32;
+#else
+	return next_pow2(x);
+#endif
+}
+
 size_t hex_width(u64 v);
 int hex2u64(const char *ptr, u64 *val);
 
-- 
1.8.1.4

[PATCH 10/21] perf kvm: Introduce option -v for perf kvm command.

[Arnaldo Carvalho de Melo]

From: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>

As there is no -v option for perf kvm, the all debug message for perf
kvm will nerver be printed out to user.

Example:
	# perf kvm --guestmount /tmp/guestmount/ record -a
	Not enough memory for reading perf file header

It is confusing message for newbies such as me. With this patch applied,
we can use -v option to get the detail.

Example:
	# perf kvm --guestmount /tmp/guestmount/ record -a -v
	Can't access file /tmp/guestmount//15069/proc/kallsyms
	Not enough memory for reading perf file header

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Cc: David Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1386609311-23889-1-git-send-email-yangds.fnst@cn.fujitsu.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-kvm.txt | 7 +++++--
 tools/perf/builtin-kvm.c              | 2 ++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Documentation/perf-kvm.txt b/tools/perf/Documentation/perf-kvm.txt
index 96a9a1dea727..52276a6d2b75 100644
--- a/tools/perf/Documentation/perf-kvm.txt
+++ b/tools/perf/Documentation/perf-kvm.txt
@@ -10,9 +10,9 @@ SYNOPSIS
 [verse]
 'perf kvm' [--host] [--guest] [--guestmount=<path>
 	[--guestkallsyms=<path> --guestmodules=<path> | --guestvmlinux=<path>]]
-	{top|record|report|diff|buildid-list}
+	{top|record|report|diff|buildid-list} [<options>]
 'perf kvm' [--host] [--guest] [--guestkallsyms=<path> --guestmodules=<path>
-	| --guestvmlinux=<path>] {top|record|report|diff|buildid-list|stat}
+	| --guestvmlinux=<path>] {top|record|report|diff|buildid-list|stat} [<options>]
 'perf kvm stat [record|report|live] [<options>]
 
 DESCRIPTION
@@ -93,6 +93,9 @@ OPTIONS
 	kernel module information. Users copy it out from guest os.
 --guestvmlinux=<path>::
 	Guest os kernel vmlinux.
+-v::
+--verbose::
+	Be more verbose (show counter open errors, etc).
 
 STAT REPORT OPTIONS
 -------------------
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index f8bf5f244d77..d9cc0e3f284f 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1690,6 +1690,8 @@ int cmd_kvm(int argc, const char **argv, const char *prefix __maybe_unused)
 			   "file", "file saving guest os /proc/kallsyms"),
 		OPT_STRING(0, "guestmodules", &symbol_conf.default_guest_modules,
 			   "file", "file saving guest os /proc/modules"),
+		OPT_INCR('v', "verbose", &verbose,
+			    "be more verbose (show counter open errors, etc)"),
 		OPT_END()
 	};
 
-- 
1.8.1.4

[PATCH 11/21] perf kvm: Fix bug in 'stat report'

[Arnaldo Carvalho de Melo]

From: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>

When we use perf kvm record-report, there is a bug in report subcommand.

Example:
	# perf kvm stat record -a sleep 1
	[ perf record: Woken up 1 times to write data ]
	[ perf record: Captured and wrote 0.678 MB perf.data.guest (~29641 samples) ]
	# perf kvm stat report
	failed to open perf.data: No such file or directory  (try 'perf record' first)
	Initializing perf session failed

This bug was introduced by f5fc14124.

+       struct perf_data_file file = {
+               .path = input_name,
+               .mode = PERF_DATA_MODE_READ,
+       };

        kvm->tool = eops;
-       kvm->session = perf_session__new(kvm->file_name, O_RDONLY, 0, false,
-                                        &kvm->tool);
+       kvm->session = perf_session__new(&file, false, &kvm->tool);

It changed the path from kvm->file_name to input_name, this patch change the path back to
'kvm->file_name', then it works well.

Verification:
	# perf kvm stat record -a sleep 1
	[ perf record: Woken up 1 times to write data ]
	[ perf record: Captured and wrote 0.807 MB perf.data.guest (~35264 samples) ]
	# perf kvm stat report

	Analyze events for all VCPUs:

		     VM-EXIT    Samples  Samples%     Time%   Min Time   Max Time         Avg time

	       EPT_VIOLATION        200    32.79%     1.25%        0us    12064us     62.35us ( +-  96.74% )
	       EPT_MISCONFIG        134    21.97%     0.21%        0us       35us     15.25us ( +-   4.14% )
	       EXCEPTION_NMI         96    15.74%     0.02%        0us       11us      1.95us ( +-   9.81% )
		 APIC_ACCESS         79    12.95%     0.02%        0us       13us      2.94us ( +-  11.20% )
			 HLT         65    10.66%    98.47%        0us    16706us  15084.86us ( +-   1.89% )
	      IO_INSTRUCTION         27     4.43%     0.02%        0us       29us      6.42us ( +-  15.53% )
	  EXTERNAL_INTERRUPT          5     0.82%     0.01%        0us       77us     23.65us ( +-  57.90% )
	 TPR_BELOW_THRESHOLD          4     0.66%     0.00%        0us        1us      1.22us ( +-   4.36% )

	Total Samples:610, Total events handled time:995745.54us.

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Link: http://lkml.kernel.org/r/1386632823-17539-1-git-send-email-yangds.fnst@cn.fujitsu.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-kvm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index d9cc0e3f284f..c2e5d56a291d 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1232,7 +1232,7 @@ static int read_events(struct perf_kvm_stat *kvm)
 		.ordered_samples	= true,
 	};
 	struct perf_data_file file = {
-		.path = input_name,
+		.path = kvm->file_name,
 		.mode = PERF_DATA_MODE_READ,
 	};
 
-- 
1.8.1.4

[PATCH 12/21] perf archive: Remove duplicated 'runs' in man page

[Arnaldo Carvalho de Melo]

From: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>

Two 'runs' here breaks the sentence in Description of 'perf archive'
command.

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Link: http://lkml.kernel.org/r/78a15a9f4f500b6074a1e25917d6e8251f894628.1386629050.git.yangds.fnst@cn.fujitsu.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-archive.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/Documentation/perf-archive.txt b/tools/perf/Documentation/perf-archive.txt
index 5032a142853e..ac6ecbb3e669 100644
--- a/tools/perf/Documentation/perf-archive.txt
+++ b/tools/perf/Documentation/perf-archive.txt
@@ -12,9 +12,9 @@ SYNOPSIS
 
 DESCRIPTION
 -----------
-This command runs runs perf-buildid-list --with-hits, and collects the files
-with the buildids found so that analysis of perf.data contents can be possible
-on another machine.
+This command runs perf-buildid-list --with-hits, and collects the files with the
+buildids found so that analysis of perf.data contents can be possible on another
+machine.
 
 
 SEE ALSO
-- 
1.8.1.4

[PATCH 13/21] perf annotate: Fix typo

[Arnaldo Carvalho de Melo]

From: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>

A typo in comment of builtin-annotate.c about 'that'.

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Link: http://lkml.kernel.org/r/46cb069a4ce21141057a07c0b50baa9968e3228c.1386629050.git.yangds.fnst@cn.fujitsu.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-annotate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 4087ab19823c..6fd52c8fa682 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -373,7 +373,7 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused)
 
 	if (argc) {
 		/*
-		 * Special case: if there's an argument left then assume tha
+		 * Special case: if there's an argument left then assume that
 		 * it's a symbol filter:
 		 */
 		if (argc > 1)
-- 
1.8.1.4

[PATCH 14/21] perf kvm: Move code to generate filename for perf-kvm to function.

[Arnaldo Carvalho de Melo]

From: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>

The code in builtin-kvm.c to generate filename for perf-kvm is useful to
other command such as builtin-diff.

This patch move the related code form builtin-kvm.c to util/util.c and
wrap them in a function named get_filename_for_perf_kvm.

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Link: http://lkml.kernel.org/r/5e09a5c47e8a495e888cbdc65a6fafb2c950f529.1386368672.git.yangds.fnst@cn.fujitsu.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-kvm.c |  7 +------
 tools/perf/util/util.c   | 14 ++++++++++++++
 tools/perf/util/util.h   |  2 ++
 3 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index c2e5d56a291d..c6fa3cbd45a9 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1713,12 +1713,7 @@ int cmd_kvm(int argc, const char **argv, const char *prefix __maybe_unused)
 		perf_guest = 1;
 
 	if (!file_name) {
-		if (perf_host && !perf_guest)
-			file_name = strdup("perf.data.host");
-		else if (!perf_host && perf_guest)
-			file_name = strdup("perf.data.guest");
-		else
-			file_name = strdup("perf.data.kvm");
+		file_name = get_filename_for_perf_kvm();
 
 		if (!file_name) {
 			pr_err("Failed to allocate memory for filename\n");
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index bae8756a4eb1..4a57609c0b43 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -482,3 +482,17 @@ int filename__read_str(const char *filename, char **buf, size_t *sizep)
 	close(fd);
 	return err;
 }
+
+const char *get_filename_for_perf_kvm(void)
+{
+	const char *filename;
+
+	if (perf_host && !perf_guest)
+		filename = strdup("perf.data.host");
+	else if (!perf_host && perf_guest)
+		filename = strdup("perf.data.guest");
+	else
+		filename = strdup("perf.data.kvm");
+
+	return filename;
+}
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 659abf30e01b..0171213d1d4d 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -321,4 +321,6 @@ void free_srcline(char *srcline);
 
 int filename__read_int(const char *filename, int *value);
 int filename__read_str(const char *filename, char **buf, size_t *sizep);
+
+const char *get_filename_for_perf_kvm(void);
 #endif /* GIT_COMPAT_UTIL_H */
-- 
1.8.1.4

[PATCH 15/21] perf kvm: Make perf kvm diff support --guestmount.

[Arnaldo Carvalho de Melo]

From: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>

In manpage of perf-kvm, --guestmount is supported by diff command, but
it does not work well.

This patch change the extend the checking in buildid-diff from
guestkallsyms or guestmodules to perf_guest. Then this checking can
cover the all cases perf kvm is used for.

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Link: http://lkml.kernel.org/r/72857ed89642e0633f5e88f7e7abbc9645359e8e.1386368672.git.yangds.fnst@cn.fujitsu.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-diff.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 3b67ea2444bd..2a85cc9a2d09 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -1000,8 +1000,7 @@ static int data_init(int argc, const char **argv)
 			data__files_cnt = argc;
 			use_default = false;
 		}
-	} else if (symbol_conf.default_guest_vmlinux_name ||
-		   symbol_conf.default_guest_kallsyms) {
+	} else if (perf_guest) {
 		defaults[0] = "perf.data.host";
 		defaults[1] = "perf.data.guest";
 	}
-- 
1.8.1.4

[PATCH 16/21] tools lib traceevent: Get rid of malloc_or_die() in pevent_filter_alloc()

[Arnaldo Carvalho de Melo]

From: Namhyung Kim <namhyung@kernel.org>

It returns NULL when allocation fails so the users should check the
return value from now on.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1386567251-22751-4-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/parse-filter.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 2500e75583fc..b3a61d4fe38e 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -182,7 +182,10 @@ struct event_filter *pevent_filter_alloc(struct pevent *pevent)
 {
 	struct event_filter *filter;
 
-	filter = malloc_or_die(sizeof(*filter));
+	filter = malloc(sizeof(*filter));
+	if (filter == NULL)
+		return NULL;
+
 	memset(filter, 0, sizeof(*filter));
 	filter->pevent = pevent;
 	pevent_ref(pevent);
-- 
1.8.1.4

[PATCH 17/21] tools lib traceevent: Get rid of malloc_or_die() in add_event()

[Arnaldo Carvalho de Melo]

From: Namhyung Kim <namhyung@kernel.org>

Make it return error value since its only caller find_event() now can
handle allocation error properly.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1386567251-22751-8-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/parse-filter.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index b3a61d4fe38e..2b73abfb0c9f 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -245,15 +245,19 @@ static void free_arg(struct filter_arg *arg)
 	free(arg);
 }
 
-static void add_event(struct event_list **events,
+static int add_event(struct event_list **events,
 		      struct event_format *event)
 {
 	struct event_list *list;
 
-	list = malloc_or_die(sizeof(*list));
+	list = malloc(sizeof(*list));
+	if (list == NULL)
+		return -1;
+
 	list->next = *events;
 	*events = list;
 	list->event = event;
+	return 0;
 }
 
 static int event_match(struct event_format *event,
@@ -276,6 +280,7 @@ find_event(struct pevent *pevent, struct event_list **events,
 	regex_t ereg;
 	regex_t sreg;
 	int match = 0;
+	int fail = 0;
 	char *reg;
 	int ret;
 	int i;
@@ -310,7 +315,10 @@ find_event(struct pevent *pevent, struct event_list **events,
 		event = pevent->events[i];
 		if (event_match(event, sys_name ? &sreg : NULL, &ereg)) {
 			match = 1;
-			add_event(events, event);
+			if (add_event(events, event) < 0) {
+				fail = 1;
+				break;
+			}
 		}
 	}
 
@@ -320,6 +328,8 @@ find_event(struct pevent *pevent, struct event_list **events,
 
 	if (!match)
 		return -1;
+	if (fail)
+		return -2;
 
 	return 0;
 }
-- 
1.8.1.4

[PATCH 18/21] tools lib traceevent: Get rid of die() in create_arg_item()

[Arnaldo Carvalho de Melo]

From: Namhyung Kim <namhyung@kernel.org>

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1386567251-22751-9-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/parse-filter.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 2b73abfb0c9f..53e48eb112c3 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -362,8 +362,11 @@ create_arg_item(struct event_format *event, const char *token,
 		arg->value.type =
 			type == EVENT_DQUOTE ? FILTER_STRING : FILTER_CHAR;
 		arg->value.str = strdup(token);
-		if (!arg->value.str)
-			die("malloc string");
+		if (!arg->value.str) {
+			free_arg(arg);
+			show_error(error_str, "failed to allocate string filter arg");
+			return NULL;
+		}
 		break;
 	case EVENT_ITEM:
 		/* if it is a number, then convert it */
-- 
1.8.1.4

[PATCH 19/21] tools lib traceevent: Get rid of malloc_or_die() in pevent_filter_add_filter_str()

[Arnaldo Carvalho de Melo]

From: Namhyung Kim <namhyung@kernel.org>

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1386567251-22751-12-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/parse-filter.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 53e48eb112c3..a4d5bb23a110 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -1226,7 +1226,13 @@ int pevent_filter_add_filter_str(struct event_filter *filter,
 		else
 			len = strlen(filter_str);
 
-		this_event = malloc_or_die(len + 1);
+		this_event = malloc(len + 1);
+		if (this_event == NULL) {
+			show_error(error_str, "Memory allocation failure");
+			/* This can only happen when events is NULL, but still */
+			free_events(events);
+			return -1;
+		}
 		memcpy(this_event, filter_str, len);
 		this_event[len] = 0;
 
-- 
1.8.1.4

[PATCH 20/21] tools lib traceevent: Get rid of die() in pevent_filter_clear_trivial()

[Arnaldo Carvalho de Melo]

From: Namhyung Kim <namhyung@kernel.org>

Change the function signature to return error code and not call die()
anymore.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1386567251-22751-13-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.h  |  2 +-
 tools/lib/traceevent/parse-filter.c | 21 +++++++++++++++------
 2 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 620c27a72960..6e23f197175f 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -860,7 +860,7 @@ int pevent_event_filtered(struct event_filter *filter,
 
 void pevent_filter_reset(struct event_filter *filter);
 
-void pevent_filter_clear_trivial(struct event_filter *filter,
+int pevent_filter_clear_trivial(struct event_filter *filter,
 				 enum filter_trivial_type type);
 
 void pevent_filter_free(struct event_filter *filter);
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index a4d5bb23a110..ab402fb2dcf7 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -1504,8 +1504,10 @@ int pevent_update_trivial(struct event_filter *dest, struct event_filter *source
  * @type: remove only true, false, or both
  *
  * Removes filters that only contain a TRUE or FALES boolean arg.
+ *
+ * Returns 0 on success and -1 if there was a problem.
  */
-void pevent_filter_clear_trivial(struct event_filter *filter,
+int pevent_filter_clear_trivial(struct event_filter *filter,
 				 enum filter_trivial_type type)
 {
 	struct filter_type *filter_type;
@@ -1514,13 +1516,15 @@ void pevent_filter_clear_trivial(struct event_filter *filter,
 	int i;
 
 	if (!filter->filters)
-		return;
+		return 0;
 
 	/*
 	 * Two steps, first get all ids with trivial filters.
 	 *  then remove those ids.
 	 */
 	for (i = 0; i < filter->filters; i++) {
+		int *new_ids;
+
 		filter_type = &filter->event_filters[i];
 		if (filter_type->filter->type != FILTER_ARG_BOOLEAN)
 			continue;
@@ -1535,19 +1539,24 @@ void pevent_filter_clear_trivial(struct event_filter *filter,
 			break;
 		}
 
-		ids = realloc(ids, sizeof(*ids) * (count + 1));
-		if (!ids)
-			die("Can't allocate ids");
+		new_ids = realloc(ids, sizeof(*ids) * (count + 1));
+		if (!new_ids) {
+			free(ids);
+			return -1;
+		}
+
+		ids = new_ids;
 		ids[count++] = filter_type->event_id;
 	}
 
 	if (!count)
-		return;
+		return 0;
 
 	for (i = 0; i < count; i++)
 		pevent_filter_remove_event(filter, ids[i]);
 
 	free(ids);
+	return 0;
 }
 
 /**
-- 
1.8.1.4

[PATCH 21/21] perf symbols: fix bug in usage of the basename() function

[Arnaldo Carvalho de Melo]

From: Stephane Eranian <eranian@google.com>

The basename() implementation varies a lot between systems.

The Linux man page says: "basename may modify the content of the path,
so it may be desirable to pass a copy when calling the function".

On some other systems, the returned address may come from an internal
buffer which can be reused in subsequent calls, thus the results should
also be copied.

The dso__set_basename() function was not doing this causing problems
on some systems with wrong library names being shown by perf report,
such as on Android systems.

This patch fixes the problem.
The patch is relative to tip.git.

In v2, we clean up the comments based on Ingo's feedback.

Reported-by: Ben Cheng <bccheng@google.com>
Signed-off-by: Stephane Eranian <eranian@google.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: bccheng@google.com
Link: http://lkml.kernel.org/r/20131205182642.GA14614@quad
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/dso.c | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index a0c7c591f4b2..9fae484853c1 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -404,7 +404,34 @@ void dso__set_short_name(struct dso *dso, const char *name)
 
 static void dso__set_basename(struct dso *dso)
 {
-	dso__set_short_name(dso, basename(dso->long_name));
+	char *lname, *base;
+
+	/*
+	 * basename() may modify path buffer, so we must pass
+	 * a copy.
+	 */
+	lname = strdup(dso->long_name);
+	if (!lname)
+		return;
+
+	/*
+	 * basename() may return a pointer to internal
+	 * storage which is reused in subsequent calls
+	 * so copy the result.
+	 */
+	base = strdup(basename(lname));
+
+	free(lname);
+
+	if (!base)
+		return;
+
+	if (dso->sname_alloc)
+		free((char *)dso->short_name);
+	else
+		dso->sname_alloc = 1;
+
+	dso__set_short_name(dso, base);
 }
 
 int dso__name_len(const struct dso *dso)
-- 
1.8.1.4

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@infradead.org> wrote:

> From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
> 
> Hi Ingo,
> 
> 	Please consider pulling,
> 
> Best Regards,
> 
> -Arnaldo
> 
> The following changes since commit 6d65894bc028d0342829ea1e64c9e9efad571124:
> 
>   tools lib traceevent: Update kvm plugin with is_writable_pte helper (2013-12-04 15:38:14 -0300)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo
> 
> for you to fetch changes up to e993d10caeb6dca690dbaf86e1981ba240d1414a:
> 
>   perf symbols: fix bug in usage of the basename() function (2013-12-09 15:41:59 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> . Add an option in 'perf script' to print the source line number, from Adrian Hunter
> 
> . Fix symoff printing in callchains in 'perf script', from Adrian Hunter.
> 
> . Assorted mmap_pages handling fixes, from Adrian Hunter.
> 
> . Fix summary percentage when processing files in 'perf trace', fom David Ahern.
> 
> . Handle old kernels where the "raw_syscalls" tracepoints were called plan "syscalls",
>   in 'perf trace', from David Ahern.
> 
> . Several man pages typo fixes from Dongsheng Yang.
> 
> . Add '-v' option to 'perf kvm', from Dongsheng Yang.
> 
> . Make perf kvm diff support --guestmount, from Dongsheng Yang.
> 
> . Get rid of several die() calls in libtraceevent, from Namhyung Kim.
> 
> . Use basename() in a more robust way, to avoid problems related to different
>   system library implementations for that function, from Stephane Eranian.
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Adrian Hunter (6):
>       perf script: Fix symoff printing in callchains
>       perf script: Add an option to print the source line number
>       perf record: Fix display of incorrect mmap pages
>       perf evlist: Remove unnecessary parentheses
>       perf evlist: Fix max mmap_pages
>       perf evlist: Fix mmap pages rounding to power of 2
> 
> David Ahern (2):
>       perf trace: Add support for syscalls vs raw_syscalls
>       perf trace: Fix summary percentage when processing files
> 
> Dongsheng Yang (6):
>       perf kvm: Introduce option -v for perf kvm command.
>       perf kvm: Fix bug in 'stat report'
>       perf archive: Remove duplicated 'runs' in man page
>       perf annotate: Fix typo
>       perf kvm: Move code to generate filename for perf-kvm to function.
>       perf kvm: Make perf kvm diff support --guestmount.
> 
> Namhyung Kim (5):
>       tools lib traceevent: Get rid of malloc_or_die() in pevent_filter_alloc()
>       tools lib traceevent: Get rid of malloc_or_die() in add_event()
>       tools lib traceevent: Get rid of die() in create_arg_item()
>       tools lib traceevent: Get rid of malloc_or_die() in pevent_filter_add_filter_str()
>       tools lib traceevent: Get rid of die() in pevent_filter_clear_trivial()
> 
> Stephane Eranian (1):
>       perf symbols: fix bug in usage of the basename() function
> 
> Steven Rostedt (1):
>       tools lib traceevent: Report better error message on bad function args
> 
>  tools/lib/traceevent/event-parse.c        | 28 +++++++++------
>  tools/lib/traceevent/event-parse.h        |  2 +-
>  tools/lib/traceevent/parse-filter.c       | 57 ++++++++++++++++++++++++-------
>  tools/perf/Documentation/perf-archive.txt |  6 ++--
>  tools/perf/Documentation/perf-kvm.txt     |  7 ++--
>  tools/perf/Documentation/perf-script.txt  |  2 +-
>  tools/perf/builtin-annotate.c             |  2 +-
>  tools/perf/builtin-diff.c                 |  3 +-
>  tools/perf/builtin-kvm.c                  | 11 +++---
>  tools/perf/builtin-record.c               |  2 +-
>  tools/perf/builtin-script.c               | 10 ++++++
>  tools/perf/builtin-trace.c                | 32 +++++++++++++++--
>  tools/perf/util/dso.c                     | 29 +++++++++++++++-
>  tools/perf/util/evlist.c                  | 10 +++---
>  tools/perf/util/map.c                     | 17 +++++++++
>  tools/perf/util/map.h                     |  2 ++
>  tools/perf/util/session.c                 | 15 +++++++-
>  tools/perf/util/session.h                 |  1 +
>  tools/perf/util/util.c                    | 14 ++++++++
>  tools/perf/util/util.h                    | 14 ++++++++
>  20 files changed, 214 insertions(+), 50 deletions(-)

Pulled, thanks Arnaldo!

There's one detail I noticed about the recent trace-plugin changes:

comet:~/tip/tools/perf> make install
  BUILD:   Doing 'make -j12' parallel build
  SUBDIR   Documentation
  INSTALL  Documentation-man
  INSTALL  GTK UI
  SUBDIR   /home/mingo/tip/tools/lib/traceevent/
  INSTALL  binaries
  INSTALL  plugin_jbd2.so
  INSTALL  plugin_hrtimer.so
  INSTALL  plugin_kmem.so
  INSTALL  plugin_kvm.so
  INSTALL  plugin_mac80211.so
  INSTALL  plugin_sched_switch.so
  INSTALL  plugin_function.so
  INSTALL  plugin_xen.so
  INSTALL  plugin_scsi.so
  INSTALL  plugin_cfg80211.so
  INSTALL  libexec
  INSTALL  perf-archive
  INSTALL  perl-scripts
  INSTALL  python-scripts
  INSTALL  perf_completion-script
  INSTALL  tests

those plugin installs are way too verbose, they should really be in a 
single summarized line, only saying something like:

  INSTALL  plugins

Just like we already sum up 'binaries', 'libexec', 'tests', etc.

Thanks,

	Ingo

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Jiri Olsa]

On Tue, Dec 10, 2013 at 12:07:59PM +0100, Ingo Molnar wrote:
> 

SNIP

> 
> Pulled, thanks Arnaldo!
> 
> There's one detail I noticed about the recent trace-plugin changes:
> 
> comet:~/tip/tools/perf> make install
>   BUILD:   Doing 'make -j12' parallel build
>   SUBDIR   Documentation
>   INSTALL  Documentation-man
>   INSTALL  GTK UI
>   SUBDIR   /home/mingo/tip/tools/lib/traceevent/
>   INSTALL  binaries
>   INSTALL  plugin_jbd2.so
>   INSTALL  plugin_hrtimer.so
>   INSTALL  plugin_kmem.so
>   INSTALL  plugin_kvm.so
>   INSTALL  plugin_mac80211.so
>   INSTALL  plugin_sched_switch.so
>   INSTALL  plugin_function.so
>   INSTALL  plugin_xen.so
>   INSTALL  plugin_scsi.so
>   INSTALL  plugin_cfg80211.so
>   INSTALL  libexec
>   INSTALL  perf-archive
>   INSTALL  perl-scripts
>   INSTALL  python-scripts
>   INSTALL  perf_completion-script
>   INSTALL  tests
> 
> those plugin installs are way too verbose, they should really be in a 
> single summarized line, only saying something like:
> 
>   INSTALL  plugins
> 
> Just like we already sum up 'binaries', 'libexec', 'tests', etc.

ok, TODO updated ;-)

thanks,
jirka

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Ingo Molnar]

* Jiri Olsa <jolsa@redhat.com> wrote:

> On Tue, Dec 10, 2013 at 12:07:59PM +0100, Ingo Molnar wrote:
> > 
> 
> SNIP
> 
> > 
> > Pulled, thanks Arnaldo!
> > 
> > There's one detail I noticed about the recent trace-plugin changes:
> > 
> > comet:~/tip/tools/perf> make install
> >   BUILD:   Doing 'make -j12' parallel build
> >   SUBDIR   Documentation
> >   INSTALL  Documentation-man
> >   INSTALL  GTK UI
> >   SUBDIR   /home/mingo/tip/tools/lib/traceevent/
> >   INSTALL  binaries
> >   INSTALL  plugin_jbd2.so
> >   INSTALL  plugin_hrtimer.so
> >   INSTALL  plugin_kmem.so
> >   INSTALL  plugin_kvm.so
> >   INSTALL  plugin_mac80211.so
> >   INSTALL  plugin_sched_switch.so
> >   INSTALL  plugin_function.so
> >   INSTALL  plugin_xen.so
> >   INSTALL  plugin_scsi.so
> >   INSTALL  plugin_cfg80211.so
> >   INSTALL  libexec
> >   INSTALL  perf-archive
> >   INSTALL  perl-scripts
> >   INSTALL  python-scripts
> >   INSTALL  perf_completion-script
> >   INSTALL  tests
> > 
> > those plugin installs are way too verbose, they should really be in a 
> > single summarized line, only saying something like:
> > 
> >   INSTALL  plugins
> > 
> > Just like we already sum up 'binaries', 'libexec', 'tests', etc.
> 
> ok, TODO updated ;-)

Consider it a regression! ;-)

Thanks,

	Ingo

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Ingo Molnar]

Hm, I've unpulled it because 'perf top' crashes on exit, in 
dso__delete():

[Thread 0x7ffff70df700 (LWP 29561) exited]
*** Error in `/fast/mingo/tip/tools/perf/perf': munmap_chunk(): invalid pointer: 0x0000000000587371 ***
======= Backtrace: =========
/lib64/libc.so.6[0x3e5907bbe7]
/fast/mingo/tip/tools/perf/perf(dso__delete+0xd9)[0x46da89]
/fast/mingo/tip/tools/perf/perf(machines__exit+0xad)[0x482e7d]
/fast/mingo/tip/tools/perf/perf(perf_session__delete+0xb6)[0x488c66]
/fast/mingo/tip/tools/perf/perf(cmd_top+0xf44)[0x4345f4]
/fast/mingo/tip/tools/perf/perf[0x419f95]
/fast/mingo/tip/tools/perf/perf(main+0x600)[0x419830]
/lib64/libc.so.6(__libc_start_main+0xf5)[0x3e59021b45]
/fast/mingo/tip/tools/perf/perf[0x4198fd]
======= Memory map: ========

Program received signal SIGABRT, Aborted.
0x0000003e590359e9 in raise () from /lib64/libc.so.6
Missing separate debuginfos, use: debuginfo-install audit-libs-2.3.2-1.fc19.x86_64 bzip2-libs-1.0.6-8.fc19.x86_64 elfutils-libelf-0.156-5.fc19.x86_64 elfutils-libs-0.156-5.fc19.x86_64 glibc-2.17-19.fc19.x86_64 libgcc-4.8.2-1.fc19.x86_64 libunwind-1.1-2.fc19.x86_64 nss-softokn-freebl-3.15.2-2.fc19.x86_64 numactl-libs-2.0.8-4.fc19.x86_64 perl-libs-5.16.3-266.fc19.x86_64 python-libs-2.7.5-9.fc19.x86_64 slang-2.2.4-8.fc19.x86_64 xz-libs-5.1.2-4alpha.fc19.x86_64 zlib-1.2.7-10.fc19.x86_64
(gdb) 
(gdb) bt
#0  0x0000003e590359e9 in raise () from /lib64/libc.so.6
#1  0x0000003e590370f8 in abort () from /lib64/libc.so.6
#2  0x0000003e59075d17 in __libc_message () from /lib64/libc.so.6
#3  0x0000003e5907bbe7 in malloc_printerr () from /lib64/libc.so.6
#4  0x000000000046da89 in dso__delete (dso=0x8e46f0) at util/dso.c:496
#5  0x0000000000482e7d in dsos__delete (dsos=0x8e4490) at util/machine.c:72
#6  machine__exit (machine=<optimized out>) at util/machine.c:103
#7  machines__exit (machines=machines@entry=0x8e4438) at util/machine.c:123
#8  0x0000000000488c66 in perf_session__delete (session=0x8e4360) at util/session.c:155
#9  0x00000000004345f4 in __cmd_top (top=0x7fffffffb140) at builtin-top.c:985
#10 cmd_top (argc=<optimized out>, argv=<optimized out>, prefix=<optimized out>) at builtin-top.c:1210
#11 0x0000000000419f95 in run_builtin (p=p@entry=0x7ece88 <commands+264>, argc=argc@entry=2, argv=argv@entry=0x7fffffffe420) at perf.c:319
#12 0x0000000000419830 in handle_internal_command (argv=0x7fffffffe420, argc=2) at perf.c:376
#13 run_argv (argv=0x7fffffffe220, argcp=0x7fffffffe22c) at perf.c:420
#14 main (argc=2, argv=0x7fffffffe420) at perf.c:529
(gdb) 

Running it on an up-to-date installation of Fedora 19.

Thanks,

	Ingo

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Tue, Dec 10, 2013 at 12:12:29PM +0100, Ingo Molnar escreveu:
> 
> Hm, I've unpulled it because 'perf top' crashes on exit, in 
> dso__delete():

495		if (dso->sname_alloc)
496			free((char *)dso->short_name)

Yeah, must be that basename() patch from Stephane, I'll work on a fix
and resubmit this batch, thanks for the report.

- Arnaldo
 
> [Thread 0x7ffff70df700 (LWP 29561) exited]
> *** Error in `/fast/mingo/tip/tools/perf/perf': munmap_chunk(): invalid pointer: 0x0000000000587371 ***
> ======= Backtrace: =========
> /lib64/libc.so.6[0x3e5907bbe7]
> /fast/mingo/tip/tools/perf/perf(dso__delete+0xd9)[0x46da89]
> /fast/mingo/tip/tools/perf/perf(machines__exit+0xad)[0x482e7d]
> /fast/mingo/tip/tools/perf/perf(perf_session__delete+0xb6)[0x488c66]
> /fast/mingo/tip/tools/perf/perf(cmd_top+0xf44)[0x4345f4]
> /fast/mingo/tip/tools/perf/perf[0x419f95]
> /fast/mingo/tip/tools/perf/perf(main+0x600)[0x419830]
> /lib64/libc.so.6(__libc_start_main+0xf5)[0x3e59021b45]
> /fast/mingo/tip/tools/perf/perf[0x4198fd]
> ======= Memory map: ========
> 
> Program received signal SIGABRT, Aborted.
> 0x0000003e590359e9 in raise () from /lib64/libc.so.6
> Missing separate debuginfos, use: debuginfo-install audit-libs-2.3.2-1.fc19.x86_64 bzip2-libs-1.0.6-8.fc19.x86_64 elfutils-libelf-0.156-5.fc19.x86_64 elfutils-libs-0.156-5.fc19.x86_64 glibc-2.17-19.fc19.x86_64 libgcc-4.8.2-1.fc19.x86_64 libunwind-1.1-2.fc19.x86_64 nss-softokn-freebl-3.15.2-2.fc19.x86_64 numactl-libs-2.0.8-4.fc19.x86_64 perl-libs-5.16.3-266.fc19.x86_64 python-libs-2.7.5-9.fc19.x86_64 slang-2.2.4-8.fc19.x86_64 xz-libs-5.1.2-4alpha.fc19.x86_64 zlib-1.2.7-10.fc19.x86_64
> (gdb) 
> (gdb) bt
> #0  0x0000003e590359e9 in raise () from /lib64/libc.so.6
> #1  0x0000003e590370f8 in abort () from /lib64/libc.so.6
> #2  0x0000003e59075d17 in __libc_message () from /lib64/libc.so.6
> #3  0x0000003e5907bbe7 in malloc_printerr () from /lib64/libc.so.6
> #4  0x000000000046da89 in dso__delete (dso=0x8e46f0) at util/dso.c:496
> #5  0x0000000000482e7d in dsos__delete (dsos=0x8e4490) at util/machine.c:72
> #6  machine__exit (machine=<optimized out>) at util/machine.c:103
> #7  machines__exit (machines=machines@entry=0x8e4438) at util/machine.c:123
> #8  0x0000000000488c66 in perf_session__delete (session=0x8e4360) at util/session.c:155
> #9  0x00000000004345f4 in __cmd_top (top=0x7fffffffb140) at builtin-top.c:985
> #10 cmd_top (argc=<optimized out>, argv=<optimized out>, prefix=<optimized out>) at builtin-top.c:1210
> #11 0x0000000000419f95 in run_builtin (p=p@entry=0x7ece88 <commands+264>, argc=argc@entry=2, argv=argv@entry=0x7fffffffe420) at perf.c:319
> #12 0x0000000000419830 in handle_internal_command (argv=0x7fffffffe420, argc=2) at perf.c:376
> #13 run_argv (argv=0x7fffffffe220, argcp=0x7fffffffe22c) at perf.c:420
> #14 main (argc=2, argv=0x7fffffffe420) at perf.c:529
> (gdb) 
> 
> Running it on an up-to-date installation of Fedora 19.
> 
> Thanks,
> 
> 	Ingo

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@ghostprotocols.net> wrote:

> Em Tue, Dec 10, 2013 at 12:12:29PM +0100, Ingo Molnar escreveu:
> > 
> > Hm, I've unpulled it because 'perf top' crashes on exit, in 
> > dso__delete():
> 
> 495		if (dso->sname_alloc)
> 496			free((char *)dso->short_name)

Btw., instead of trusting flags I'd argue that using the pointer as a 
flag and clearing the pointer too is a much more robust freeing 
pattern in general:

		if (dso->short_name) {
			free(dso->short_name);
			dso->short_name = NULL;
		}

or so ...

Thanks,

	Ingo

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Tue, Dec 10, 2013 at 12:47:57PM +0100, Ingo Molnar escreveu:
> * Arnaldo Carvalho de Melo <acme@ghostprotocols.net> wrote:
> > Em Tue, Dec 10, 2013 at 12:12:29PM +0100, Ingo Molnar escreveu:
> > > Hm, I've unpulled it because 'perf top' crashes on exit, in 
> > > dso__delete():

> > 495		if (dso->sname_alloc)
> > 496			free((char *)dso->short_name)

> Btw., instead of trusting flags I'd argue that using the pointer as a 
> flag and clearing the pointer too is a much more robust freeing 
> pattern in general:

> 		if (dso->short_name) {
> 			free(dso->short_name);
> 			dso->short_name = NULL;
> 		}
> 
> or so ...

This is not an unusual idiom, if you look at tools/perf/util/ev{list,sel}.c,
for instance, you'll see it in many destructors.

In this case there is a micro optimization where sometimes the shortname
is just a pointer to the tail part of the long name, hence the flag.

- Arnaldo

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@ghostprotocols.net> wrote:

> Em Tue, Dec 10, 2013 at 12:47:57PM +0100, Ingo Molnar escreveu:
> > * Arnaldo Carvalho de Melo <acme@ghostprotocols.net> wrote:
> > > Em Tue, Dec 10, 2013 at 12:12:29PM +0100, Ingo Molnar escreveu:
> > > > Hm, I've unpulled it because 'perf top' crashes on exit, in 
> > > > dso__delete():
> 
> > > 495		if (dso->sname_alloc)
> > > 496			free((char *)dso->short_name)
> 
> > Btw., instead of trusting flags I'd argue that using the pointer as a 
> > flag and clearing the pointer too is a much more robust freeing 
> > pattern in general:
> 
> > 		if (dso->short_name) {
> > 			free(dso->short_name);
> > 			dso->short_name = NULL;
> > 		}
> > 
> > or so ...
> 
> This is not an unusual idiom, if you look at 
> tools/perf/util/ev{list,sel}.c, for instance, you'll see it in many 
> destructors.
> 
> In this case there is a micro optimization where sometimes the 
> shortname is just a pointer to the tail part of the long name, hence 
> the flag.

Sounds fair.

[btw., a tiny nit remains: the cast is probably unnecessary, free() 
will take any pointer.]

Thanks,

	Ingo

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Adrian Hunter]

On 10/12/13 13:44, Arnaldo Carvalho de Melo wrote:
> Em Tue, Dec 10, 2013 at 12:12:29PM +0100, Ingo Molnar escreveu:
>>
>> Hm, I've unpulled it because 'perf top' crashes on exit, in 
>> dso__delete():
> 
> 495		if (dso->sname_alloc)
> 496			free((char *)dso->short_name)
> 
> Yeah, must be that basename() patch from Stephane, I'll work on a fix
> and resubmit this batch, thanks for the report.

The problem is sname_alloc is not maintained.  Perhaps it should be
set in dso__set_short_name() e.g.

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 9fae484..54ed980 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -379,7 +379,7 @@ struct dso *dso__kernel_findnew(struct machine *machine,
const char *name,
 	 * processing we had no idea this was the kernel dso.
 	 */
 	if (dso != NULL) {
-		dso__set_short_name(dso, short_name);
+		dso__set_short_name(dso, short_name, false);
 		dso->kernel = dso_type;
 	}

@@ -394,10 +394,13 @@ void dso__set_long_name(struct dso *dso, char *name)
 	dso->long_name_len = strlen(name);
 }

-void dso__set_short_name(struct dso *dso, const char *name)
+void dso__set_short_name(struct dso *dso, const char *name, bool sname_alloc)
 {
 	if (name == NULL)
 		return;
+	if (dso->sname_alloc)
+		free((char *)dso->short_name);
+	dso->sname_alloc = sname_alloc;
 	dso->short_name = name;
 	dso->short_name_len = strlen(name);
 }
@@ -426,12 +429,7 @@ static void dso__set_basename(struct dso *dso)
 	if (!base)
 		return;

-	if (dso->sname_alloc)
-		free((char *)dso->short_name);
-	else
-		dso->sname_alloc = 1;
-
-	dso__set_short_name(dso, base);
+	dso__set_short_name(dso, base, true);
 }

 int dso__name_len(const struct dso *dso)
@@ -467,7 +465,7 @@ struct dso *dso__new(const char *name)
 		int i;
 		strcpy(dso->name, name);
 		dso__set_long_name(dso, dso->name);
-		dso__set_short_name(dso, dso->name);
+		dso__set_short_name(dso, dso->name, false);
 		for (i = 0; i < MAP__NR_TYPES; ++i)
 			dso->symbols[i] = dso->symbol_names[i] = RB_ROOT;
 		dso->cache = RB_ROOT;
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index 384f2d9..166463e 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -110,7 +110,7 @@ static inline void dso__set_loaded(struct dso *dso, enum
map_type type)
 struct dso *dso__new(const char *name);
 void dso__delete(struct dso *dso);

-void dso__set_short_name(struct dso *dso, const char *name);
+void dso__set_short_name(struct dso *dso, const char *name, bool sname_alloc);
 void dso__set_long_name(struct dso *dso, char *name);

 int dso__name_len(const struct dso *dso);


> 
> - Arnaldo
>  
>> [Thread 0x7ffff70df700 (LWP 29561) exited]
>> *** Error in `/fast/mingo/tip/tools/perf/perf': munmap_chunk(): invalid pointer: 0x0000000000587371 ***
>> ======= Backtrace: =========
>> /lib64/libc.so.6[0x3e5907bbe7]
>> /fast/mingo/tip/tools/perf/perf(dso__delete+0xd9)[0x46da89]
>> /fast/mingo/tip/tools/perf/perf(machines__exit+0xad)[0x482e7d]
>> /fast/mingo/tip/tools/perf/perf(perf_session__delete+0xb6)[0x488c66]
>> /fast/mingo/tip/tools/perf/perf(cmd_top+0xf44)[0x4345f4]
>> /fast/mingo/tip/tools/perf/perf[0x419f95]
>> /fast/mingo/tip/tools/perf/perf(main+0x600)[0x419830]
>> /lib64/libc.so.6(__libc_start_main+0xf5)[0x3e59021b45]
>> /fast/mingo/tip/tools/perf/perf[0x4198fd]
>> ======= Memory map: ========
>>
>> Program received signal SIGABRT, Aborted.
>> 0x0000003e590359e9 in raise () from /lib64/libc.so.6
>> Missing separate debuginfos, use: debuginfo-install audit-libs-2.3.2-1.fc19.x86_64 bzip2-libs-1.0.6-8.fc19.x86_64 elfutils-libelf-0.156-5.fc19.x86_64 elfutils-libs-0.156-5.fc19.x86_64 glibc-2.17-19.fc19.x86_64 libgcc-4.8.2-1.fc19.x86_64 libunwind-1.1-2.fc19.x86_64 nss-softokn-freebl-3.15.2-2.fc19.x86_64 numactl-libs-2.0.8-4.fc19.x86_64 perl-libs-5.16.3-266.fc19.x86_64 python-libs-2.7.5-9.fc19.x86_64 slang-2.2.4-8.fc19.x86_64 xz-libs-5.1.2-4alpha.fc19.x86_64 zlib-1.2.7-10.fc19.x86_64
>> (gdb) 
>> (gdb) bt
>> #0  0x0000003e590359e9 in raise () from /lib64/libc.so.6
>> #1  0x0000003e590370f8 in abort () from /lib64/libc.so.6
>> #2  0x0000003e59075d17 in __libc_message () from /lib64/libc.so.6
>> #3  0x0000003e5907bbe7 in malloc_printerr () from /lib64/libc.so.6
>> #4  0x000000000046da89 in dso__delete (dso=0x8e46f0) at util/dso.c:496
>> #5  0x0000000000482e7d in dsos__delete (dsos=0x8e4490) at util/machine.c:72
>> #6  machine__exit (machine=<optimized out>) at util/machine.c:103
>> #7  machines__exit (machines=machines@entry=0x8e4438) at util/machine.c:123
>> #8  0x0000000000488c66 in perf_session__delete (session=0x8e4360) at util/session.c:155
>> #9  0x00000000004345f4 in __cmd_top (top=0x7fffffffb140) at builtin-top.c:985
>> #10 cmd_top (argc=<optimized out>, argv=<optimized out>, prefix=<optimized out>) at builtin-top.c:1210
>> #11 0x0000000000419f95 in run_builtin (p=p@entry=0x7ece88 <commands+264>, argc=argc@entry=2, argv=argv@entry=0x7fffffffe420) at perf.c:319
>> #12 0x0000000000419830 in handle_internal_command (argv=0x7fffffffe420, argc=2) at perf.c:376
>> #13 run_argv (argv=0x7fffffffe220, argcp=0x7fffffffe22c) at perf.c:420
>> #14 main (argc=2, argv=0x7fffffffe420) at perf.c:529
>> (gdb) 
>>
>> Running it on an up-to-date installation of Fedora 19.
>>
>> Thanks,
>>
>> 	Ingo
> 
> 

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Tue, Dec 10, 2013 at 02:13:12PM +0200, Adrian Hunter escreveu:
> On 10/12/13 13:44, Arnaldo Carvalho de Melo wrote:
> > Em Tue, Dec 10, 2013 at 12:12:29PM +0100, Ingo Molnar escreveu:
> >>
> >> Hm, I've unpulled it because 'perf top' crashes on exit, in 
> >> dso__delete():
> > 
> > 495		if (dso->sname_alloc)
> > 496			free((char *)dso->short_name)
> > 
> > Yeah, must be that basename() patch from Stephane, I'll work on a fix
> > and resubmit this batch, thanks for the report.
> 
> The problem is sname_alloc is not maintained.  Perhaps it should be
> set in dso__set_short_name() e.g.

Yeah, sounds better than having all callers manage that thing, quickie,
was this with Stephane's patch applied?

I think it should be done as a prep, then apply a modified version of
Stephanes, that doesn't deal with the alloc flag (more than using 'true'
to say it is a malloc'ed chunk).

- Arnaldo
 
> diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
> index 9fae484..54ed980 100644
> --- a/tools/perf/util/dso.c
> +++ b/tools/perf/util/dso.c
> @@ -379,7 +379,7 @@ struct dso *dso__kernel_findnew(struct machine *machine,
> const char *name,
>  	 * processing we had no idea this was the kernel dso.
>  	 */
>  	if (dso != NULL) {
> -		dso__set_short_name(dso, short_name);
> +		dso__set_short_name(dso, short_name, false);
>  		dso->kernel = dso_type;
>  	}
> 
> @@ -394,10 +394,13 @@ void dso__set_long_name(struct dso *dso, char *name)
>  	dso->long_name_len = strlen(name);
>  }
> 
> -void dso__set_short_name(struct dso *dso, const char *name)
> +void dso__set_short_name(struct dso *dso, const char *name, bool sname_alloc)
>  {
>  	if (name == NULL)
>  		return;
> +	if (dso->sname_alloc)
> +		free((char *)dso->short_name);
> +	dso->sname_alloc = sname_alloc;
>  	dso->short_name = name;
>  	dso->short_name_len = strlen(name);
>  }
> @@ -426,12 +429,7 @@ static void dso__set_basename(struct dso *dso)
>  	if (!base)
>  		return;
> 
> -	if (dso->sname_alloc)
> -		free((char *)dso->short_name);
> -	else
> -		dso->sname_alloc = 1;
> -
> -	dso__set_short_name(dso, base);
> +	dso__set_short_name(dso, base, true);
>  }
> 
>  int dso__name_len(const struct dso *dso)
> @@ -467,7 +465,7 @@ struct dso *dso__new(const char *name)
>  		int i;
>  		strcpy(dso->name, name);
>  		dso__set_long_name(dso, dso->name);
> -		dso__set_short_name(dso, dso->name);
> +		dso__set_short_name(dso, dso->name, false);
>  		for (i = 0; i < MAP__NR_TYPES; ++i)
>  			dso->symbols[i] = dso->symbol_names[i] = RB_ROOT;
>  		dso->cache = RB_ROOT;
> diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
> index 384f2d9..166463e 100644
> --- a/tools/perf/util/dso.h
> +++ b/tools/perf/util/dso.h
> @@ -110,7 +110,7 @@ static inline void dso__set_loaded(struct dso *dso, enum
> map_type type)
>  struct dso *dso__new(const char *name);
>  void dso__delete(struct dso *dso);
> 
> -void dso__set_short_name(struct dso *dso, const char *name);
> +void dso__set_short_name(struct dso *dso, const char *name, bool sname_alloc);
>  void dso__set_long_name(struct dso *dso, char *name);
> 
>  int dso__name_len(const struct dso *dso);
> 
> 
> > 
> > - Arnaldo
> >  
> >> [Thread 0x7ffff70df700 (LWP 29561) exited]
> >> *** Error in `/fast/mingo/tip/tools/perf/perf': munmap_chunk(): invalid pointer: 0x0000000000587371 ***
> >> ======= Backtrace: =========
> >> /lib64/libc.so.6[0x3e5907bbe7]
> >> /fast/mingo/tip/tools/perf/perf(dso__delete+0xd9)[0x46da89]
> >> /fast/mingo/tip/tools/perf/perf(machines__exit+0xad)[0x482e7d]
> >> /fast/mingo/tip/tools/perf/perf(perf_session__delete+0xb6)[0x488c66]
> >> /fast/mingo/tip/tools/perf/perf(cmd_top+0xf44)[0x4345f4]
> >> /fast/mingo/tip/tools/perf/perf[0x419f95]
> >> /fast/mingo/tip/tools/perf/perf(main+0x600)[0x419830]
> >> /lib64/libc.so.6(__libc_start_main+0xf5)[0x3e59021b45]
> >> /fast/mingo/tip/tools/perf/perf[0x4198fd]
> >> ======= Memory map: ========
> >>
> >> Program received signal SIGABRT, Aborted.
> >> 0x0000003e590359e9 in raise () from /lib64/libc.so.6
> >> Missing separate debuginfos, use: debuginfo-install audit-libs-2.3.2-1.fc19.x86_64 bzip2-libs-1.0.6-8.fc19.x86_64 elfutils-libelf-0.156-5.fc19.x86_64 elfutils-libs-0.156-5.fc19.x86_64 glibc-2.17-19.fc19.x86_64 libgcc-4.8.2-1.fc19.x86_64 libunwind-1.1-2.fc19.x86_64 nss-softokn-freebl-3.15.2-2.fc19.x86_64 numactl-libs-2.0.8-4.fc19.x86_64 perl-libs-5.16.3-266.fc19.x86_64 python-libs-2.7.5-9.fc19.x86_64 slang-2.2.4-8.fc19.x86_64 xz-libs-5.1.2-4alpha.fc19.x86_64 zlib-1.2.7-10.fc19.x86_64
> >> (gdb) 
> >> (gdb) bt
> >> #0  0x0000003e590359e9 in raise () from /lib64/libc.so.6
> >> #1  0x0000003e590370f8 in abort () from /lib64/libc.so.6
> >> #2  0x0000003e59075d17 in __libc_message () from /lib64/libc.so.6
> >> #3  0x0000003e5907bbe7 in malloc_printerr () from /lib64/libc.so.6
> >> #4  0x000000000046da89 in dso__delete (dso=0x8e46f0) at util/dso.c:496
> >> #5  0x0000000000482e7d in dsos__delete (dsos=0x8e4490) at util/machine.c:72
> >> #6  machine__exit (machine=<optimized out>) at util/machine.c:103
> >> #7  machines__exit (machines=machines@entry=0x8e4438) at util/machine.c:123
> >> #8  0x0000000000488c66 in perf_session__delete (session=0x8e4360) at util/session.c:155
> >> #9  0x00000000004345f4 in __cmd_top (top=0x7fffffffb140) at builtin-top.c:985
> >> #10 cmd_top (argc=<optimized out>, argv=<optimized out>, prefix=<optimized out>) at builtin-top.c:1210
> >> #11 0x0000000000419f95 in run_builtin (p=p@entry=0x7ece88 <commands+264>, argc=argc@entry=2, argv=argv@entry=0x7fffffffe420) at perf.c:319
> >> #12 0x0000000000419830 in handle_internal_command (argv=0x7fffffffe420, argc=2) at perf.c:376
> >> #13 run_argv (argv=0x7fffffffe220, argcp=0x7fffffffe22c) at perf.c:420
> >> #14 main (argc=2, argv=0x7fffffffe420) at perf.c:529
> >> (gdb) 
> >>
> >> Running it on an up-to-date installation of Fedora 19.
> >>
> >> Thanks,
> >>
> >> 	Ingo
> > 
> > 

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Adrian Hunter]

On 10/12/13 14:10, Arnaldo Carvalho de Melo wrote:
> Em Tue, Dec 10, 2013 at 02:13:12PM +0200, Adrian Hunter escreveu:
>> On 10/12/13 13:44, Arnaldo Carvalho de Melo wrote:
>>> Em Tue, Dec 10, 2013 at 12:12:29PM +0100, Ingo Molnar escreveu:
>>>>
>>>> Hm, I've unpulled it because 'perf top' crashes on exit, in 
>>>> dso__delete():
>>>
>>> 495		if (dso->sname_alloc)
>>> 496			free((char *)dso->short_name)
>>>
>>> Yeah, must be that basename() patch from Stephane, I'll work on a fix
>>> and resubmit this batch, thanks for the report.
>>
>> The problem is sname_alloc is not maintained.  Perhaps it should be
>> set in dso__set_short_name() e.g.
> 
> Yeah, sounds better than having all callers manage that thing, quickie,
> was this with Stephane's patch applied?

Yes it was at
	e993d10caeb6dca690dbaf86e1981ba240d1414a
	perf symbols: fix bug in usage of the basename() function

> 
> I think it should be done as a prep, then apply a modified version of
> Stephanes, that doesn't deal with the alloc flag (more than using 'true'
> to say it is a malloc'ed chunk).
> 
> - Arnaldo
>  
>> diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
>> index 9fae484..54ed980 100644
>> --- a/tools/perf/util/dso.c
>> +++ b/tools/perf/util/dso.c
>> @@ -379,7 +379,7 @@ struct dso *dso__kernel_findnew(struct machine *machine,
>> const char *name,
>>  	 * processing we had no idea this was the kernel dso.
>>  	 */
>>  	if (dso != NULL) {
>> -		dso__set_short_name(dso, short_name);
>> +		dso__set_short_name(dso, short_name, false);
>>  		dso->kernel = dso_type;
>>  	}
>>
>> @@ -394,10 +394,13 @@ void dso__set_long_name(struct dso *dso, char *name)
>>  	dso->long_name_len = strlen(name);
>>  }
>>
>> -void dso__set_short_name(struct dso *dso, const char *name)
>> +void dso__set_short_name(struct dso *dso, const char *name, bool sname_alloc)
>>  {
>>  	if (name == NULL)
>>  		return;
>> +	if (dso->sname_alloc)
>> +		free((char *)dso->short_name);
>> +	dso->sname_alloc = sname_alloc;
>>  	dso->short_name = name;
>>  	dso->short_name_len = strlen(name);
>>  }
>> @@ -426,12 +429,7 @@ static void dso__set_basename(struct dso *dso)
>>  	if (!base)
>>  		return;
>>
>> -	if (dso->sname_alloc)
>> -		free((char *)dso->short_name);
>> -	else
>> -		dso->sname_alloc = 1;
>> -
>> -	dso__set_short_name(dso, base);
>> +	dso__set_short_name(dso, base, true);
>>  }
>>
>>  int dso__name_len(const struct dso *dso)
>> @@ -467,7 +465,7 @@ struct dso *dso__new(const char *name)
>>  		int i;
>>  		strcpy(dso->name, name);
>>  		dso__set_long_name(dso, dso->name);
>> -		dso__set_short_name(dso, dso->name);
>> +		dso__set_short_name(dso, dso->name, false);
>>  		for (i = 0; i < MAP__NR_TYPES; ++i)
>>  			dso->symbols[i] = dso->symbol_names[i] = RB_ROOT;
>>  		dso->cache = RB_ROOT;
>> diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
>> index 384f2d9..166463e 100644
>> --- a/tools/perf/util/dso.h
>> +++ b/tools/perf/util/dso.h
>> @@ -110,7 +110,7 @@ static inline void dso__set_loaded(struct dso *dso, enum
>> map_type type)
>>  struct dso *dso__new(const char *name);
>>  void dso__delete(struct dso *dso);
>>
>> -void dso__set_short_name(struct dso *dso, const char *name);
>> +void dso__set_short_name(struct dso *dso, const char *name, bool sname_alloc);
>>  void dso__set_long_name(struct dso *dso, char *name);
>>
>>  int dso__name_len(const struct dso *dso);
>>
>>
>>>
>>> - Arnaldo
>>>  
>>>> [Thread 0x7ffff70df700 (LWP 29561) exited]
>>>> *** Error in `/fast/mingo/tip/tools/perf/perf': munmap_chunk(): invalid pointer: 0x0000000000587371 ***
>>>> ======= Backtrace: =========
>>>> /lib64/libc.so.6[0x3e5907bbe7]
>>>> /fast/mingo/tip/tools/perf/perf(dso__delete+0xd9)[0x46da89]
>>>> /fast/mingo/tip/tools/perf/perf(machines__exit+0xad)[0x482e7d]
>>>> /fast/mingo/tip/tools/perf/perf(perf_session__delete+0xb6)[0x488c66]
>>>> /fast/mingo/tip/tools/perf/perf(cmd_top+0xf44)[0x4345f4]
>>>> /fast/mingo/tip/tools/perf/perf[0x419f95]
>>>> /fast/mingo/tip/tools/perf/perf(main+0x600)[0x419830]
>>>> /lib64/libc.so.6(__libc_start_main+0xf5)[0x3e59021b45]
>>>> /fast/mingo/tip/tools/perf/perf[0x4198fd]
>>>> ======= Memory map: ========
>>>>
>>>> Program received signal SIGABRT, Aborted.
>>>> 0x0000003e590359e9 in raise () from /lib64/libc.so.6
>>>> Missing separate debuginfos, use: debuginfo-install audit-libs-2.3.2-1.fc19.x86_64 bzip2-libs-1.0.6-8.fc19.x86_64 elfutils-libelf-0.156-5.fc19.x86_64 elfutils-libs-0.156-5.fc19.x86_64 glibc-2.17-19.fc19.x86_64 libgcc-4.8.2-1.fc19.x86_64 libunwind-1.1-2.fc19.x86_64 nss-softokn-freebl-3.15.2-2.fc19.x86_64 numactl-libs-2.0.8-4.fc19.x86_64 perl-libs-5.16.3-266.fc19.x86_64 python-libs-2.7.5-9.fc19.x86_64 slang-2.2.4-8.fc19.x86_64 xz-libs-5.1.2-4alpha.fc19.x86_64 zlib-1.2.7-10.fc19.x86_64
>>>> (gdb) 
>>>> (gdb) bt
>>>> #0  0x0000003e590359e9 in raise () from /lib64/libc.so.6
>>>> #1  0x0000003e590370f8 in abort () from /lib64/libc.so.6
>>>> #2  0x0000003e59075d17 in __libc_message () from /lib64/libc.so.6
>>>> #3  0x0000003e5907bbe7 in malloc_printerr () from /lib64/libc.so.6
>>>> #4  0x000000000046da89 in dso__delete (dso=0x8e46f0) at util/dso.c:496
>>>> #5  0x0000000000482e7d in dsos__delete (dsos=0x8e4490) at util/machine.c:72
>>>> #6  machine__exit (machine=<optimized out>) at util/machine.c:103
>>>> #7  machines__exit (machines=machines@entry=0x8e4438) at util/machine.c:123
>>>> #8  0x0000000000488c66 in perf_session__delete (session=0x8e4360) at util/session.c:155
>>>> #9  0x00000000004345f4 in __cmd_top (top=0x7fffffffb140) at builtin-top.c:985
>>>> #10 cmd_top (argc=<optimized out>, argv=<optimized out>, prefix=<optimized out>) at builtin-top.c:1210
>>>> #11 0x0000000000419f95 in run_builtin (p=p@entry=0x7ece88 <commands+264>, argc=argc@entry=2, argv=argv@entry=0x7fffffffe420) at perf.c:319
>>>> #12 0x0000000000419830 in handle_internal_command (argv=0x7fffffffe420, argc=2) at perf.c:376
>>>> #13 run_argv (argv=0x7fffffffe220, argcp=0x7fffffffe22c) at perf.c:420
>>>> #14 main (argc=2, argv=0x7fffffffe420) at perf.c:529
>>>> (gdb) 
>>>>
>>>> Running it on an up-to-date installation of Fedora 19.
>>>>
>>>> Thanks,
>>>>
>>>> 	Ingo
>>>
>>>
> 
> 

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Tue, Dec 10, 2013 at 02:22:58PM +0200, Adrian Hunter escreveu:
> On 10/12/13 14:10, Arnaldo Carvalho de Melo wrote:
> > Em Tue, Dec 10, 2013 at 02:13:12PM +0200, Adrian Hunter escreveu:
> >> On 10/12/13 13:44, Arnaldo Carvalho de Melo wrote:
> >>> Em Tue, Dec 10, 2013 at 12:12:29PM +0100, Ingo Molnar escreveu:
> >>>>
> >>>> Hm, I've unpulled it because 'perf top' crashes on exit, in 
> >>>> dso__delete():
> >>>
> >>> 495		if (dso->sname_alloc)
> >>> 496			free((char *)dso->short_name)
> >>>
> >>> Yeah, must be that basename() patch from Stephane, I'll work on a fix
> >>> and resubmit this batch, thanks for the report.
> >>
> >> The problem is sname_alloc is not maintained.  Perhaps it should be
> >> set in dso__set_short_name() e.g.
> > 
> > Yeah, sounds better than having all callers manage that thing, quickie,
> > was this with Stephane's patch applied?
> 
> Yes it was at
> 	e993d10caeb6dca690dbaf86e1981ba240d1414a
> 	perf symbols: fix bug in usage of the basename() function

Yes, this is the buggy patch, my question was if Ingo did the changes
that streamlined the dso->sname_alloc management with e993d10caeb6
applied to his working tree.

- Arnaldo
 
> > I think it should be done as a prep, then apply a modified version of
> > Stephanes, that doesn't deal with the alloc flag (more than using 'true'
> > to say it is a malloc'ed chunk).
> > 
> > - Arnaldo
> >  
> >> diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
> >> index 9fae484..54ed980 100644
> >> --- a/tools/perf/util/dso.c
> >> +++ b/tools/perf/util/dso.c
> >> @@ -379,7 +379,7 @@ struct dso *dso__kernel_findnew(struct machine *machine,
> >> const char *name,
> >>  	 * processing we had no idea this was the kernel dso.
> >>  	 */
> >>  	if (dso != NULL) {
> >> -		dso__set_short_name(dso, short_name);
> >> +		dso__set_short_name(dso, short_name, false);
> >>  		dso->kernel = dso_type;
> >>  	}
> >>
> >> @@ -394,10 +394,13 @@ void dso__set_long_name(struct dso *dso, char *name)
> >>  	dso->long_name_len = strlen(name);
> >>  }
> >>
> >> -void dso__set_short_name(struct dso *dso, const char *name)
> >> +void dso__set_short_name(struct dso *dso, const char *name, bool sname_alloc)
> >>  {
> >>  	if (name == NULL)
> >>  		return;
> >> +	if (dso->sname_alloc)
> >> +		free((char *)dso->short_name);
> >> +	dso->sname_alloc = sname_alloc;
> >>  	dso->short_name = name;
> >>  	dso->short_name_len = strlen(name);
> >>  }
> >> @@ -426,12 +429,7 @@ static void dso__set_basename(struct dso *dso)
> >>  	if (!base)
> >>  		return;
> >>
> >> -	if (dso->sname_alloc)
> >> -		free((char *)dso->short_name);
> >> -	else
> >> -		dso->sname_alloc = 1;
> >> -
> >> -	dso__set_short_name(dso, base);
> >> +	dso__set_short_name(dso, base, true);
> >>  }
> >>
> >>  int dso__name_len(const struct dso *dso)
> >> @@ -467,7 +465,7 @@ struct dso *dso__new(const char *name)
> >>  		int i;
> >>  		strcpy(dso->name, name);
> >>  		dso__set_long_name(dso, dso->name);
> >> -		dso__set_short_name(dso, dso->name);
> >> +		dso__set_short_name(dso, dso->name, false);
> >>  		for (i = 0; i < MAP__NR_TYPES; ++i)
> >>  			dso->symbols[i] = dso->symbol_names[i] = RB_ROOT;
> >>  		dso->cache = RB_ROOT;
> >> diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
> >> index 384f2d9..166463e 100644
> >> --- a/tools/perf/util/dso.h
> >> +++ b/tools/perf/util/dso.h
> >> @@ -110,7 +110,7 @@ static inline void dso__set_loaded(struct dso *dso, enum
> >> map_type type)
> >>  struct dso *dso__new(const char *name);
> >>  void dso__delete(struct dso *dso);
> >>
> >> -void dso__set_short_name(struct dso *dso, const char *name);
> >> +void dso__set_short_name(struct dso *dso, const char *name, bool sname_alloc);
> >>  void dso__set_long_name(struct dso *dso, char *name);
> >>
> >>  int dso__name_len(const struct dso *dso);
> >>
> >>
> >>>
> >>> - Arnaldo
> >>>  
> >>>> [Thread 0x7ffff70df700 (LWP 29561) exited]
> >>>> *** Error in `/fast/mingo/tip/tools/perf/perf': munmap_chunk(): invalid pointer: 0x0000000000587371 ***
> >>>> ======= Backtrace: =========
> >>>> /lib64/libc.so.6[0x3e5907bbe7]
> >>>> /fast/mingo/tip/tools/perf/perf(dso__delete+0xd9)[0x46da89]
> >>>> /fast/mingo/tip/tools/perf/perf(machines__exit+0xad)[0x482e7d]
> >>>> /fast/mingo/tip/tools/perf/perf(perf_session__delete+0xb6)[0x488c66]
> >>>> /fast/mingo/tip/tools/perf/perf(cmd_top+0xf44)[0x4345f4]
> >>>> /fast/mingo/tip/tools/perf/perf[0x419f95]
> >>>> /fast/mingo/tip/tools/perf/perf(main+0x600)[0x419830]
> >>>> /lib64/libc.so.6(__libc_start_main+0xf5)[0x3e59021b45]
> >>>> /fast/mingo/tip/tools/perf/perf[0x4198fd]
> >>>> ======= Memory map: ========
> >>>>
> >>>> Program received signal SIGABRT, Aborted.
> >>>> 0x0000003e590359e9 in raise () from /lib64/libc.so.6
> >>>> Missing separate debuginfos, use: debuginfo-install audit-libs-2.3.2-1.fc19.x86_64 bzip2-libs-1.0.6-8.fc19.x86_64 elfutils-libelf-0.156-5.fc19.x86_64 elfutils-libs-0.156-5.fc19.x86_64 glibc-2.17-19.fc19.x86_64 libgcc-4.8.2-1.fc19.x86_64 libunwind-1.1-2.fc19.x86_64 nss-softokn-freebl-3.15.2-2.fc19.x86_64 numactl-libs-2.0.8-4.fc19.x86_64 perl-libs-5.16.3-266.fc19.x86_64 python-libs-2.7.5-9.fc19.x86_64 slang-2.2.4-8.fc19.x86_64 xz-libs-5.1.2-4alpha.fc19.x86_64 zlib-1.2.7-10.fc19.x86_64
> >>>> (gdb) 
> >>>> (gdb) bt
> >>>> #0  0x0000003e590359e9 in raise () from /lib64/libc.so.6
> >>>> #1  0x0000003e590370f8 in abort () from /lib64/libc.so.6
> >>>> #2  0x0000003e59075d17 in __libc_message () from /lib64/libc.so.6
> >>>> #3  0x0000003e5907bbe7 in malloc_printerr () from /lib64/libc.so.6
> >>>> #4  0x000000000046da89 in dso__delete (dso=0x8e46f0) at util/dso.c:496
> >>>> #5  0x0000000000482e7d in dsos__delete (dsos=0x8e4490) at util/machine.c:72
> >>>> #6  machine__exit (machine=<optimized out>) at util/machine.c:103
> >>>> #7  machines__exit (machines=machines@entry=0x8e4438) at util/machine.c:123
> >>>> #8  0x0000000000488c66 in perf_session__delete (session=0x8e4360) at util/session.c:155
> >>>> #9  0x00000000004345f4 in __cmd_top (top=0x7fffffffb140) at builtin-top.c:985
> >>>> #10 cmd_top (argc=<optimized out>, argv=<optimized out>, prefix=<optimized out>) at builtin-top.c:1210
> >>>> #11 0x0000000000419f95 in run_builtin (p=p@entry=0x7ece88 <commands+264>, argc=argc@entry=2, argv=argv@entry=0x7fffffffe420) at perf.c:319
> >>>> #12 0x0000000000419830 in handle_internal_command (argv=0x7fffffffe420, argc=2) at perf.c:376
> >>>> #13 run_argv (argv=0x7fffffffe220, argcp=0x7fffffffe22c) at perf.c:420
> >>>> #14 main (argc=2, argv=0x7fffffffe420) at perf.c:529
> >>>> (gdb) 
> >>>>
> >>>> Running it on an up-to-date installation of Fedora 19.
> >>>>
> >>>> Thanks,
> >>>>
> >>>> 	Ingo
> >>>
> >>>
> > 
> > 

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Tue, Dec 10, 2013 at 09:22:13AM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Tue, Dec 10, 2013 at 02:22:58PM +0200, Adrian Hunter escreveu:
> > On 10/12/13 14:10, Arnaldo Carvalho de Melo wrote:
> > > Em Tue, Dec 10, 2013 at 02:13:12PM +0200, Adrian Hunter escreveu:
> > >> On 10/12/13 13:44, Arnaldo Carvalho de Melo wrote:
> > >>> Em Tue, Dec 10, 2013 at 12:12:29PM +0100, Ingo Molnar escreveu:
> > >>>>
> > >>>> Hm, I've unpulled it because 'perf top' crashes on exit, in 
> > >>>> dso__delete():
> > >>>
> > >>> 495		if (dso->sname_alloc)
> > >>> 496			free((char *)dso->short_name)
> > >>>
> > >>> Yeah, must be that basename() patch from Stephane, I'll work on a fix
> > >>> and resubmit this batch, thanks for the report.
> > >>
> > >> The problem is sname_alloc is not maintained.  Perhaps it should be
> > >> set in dso__set_short_name() e.g.
> > > 
> > > Yeah, sounds better than having all callers manage that thing, quickie,
> > > was this with Stephane's patch applied?
> > 
> > Yes it was at
> > 	e993d10caeb6dca690dbaf86e1981ba240d1414a
> > 	perf symbols: fix bug in usage of the basename() function
> 
> Yes, this is the buggy patch, my question was if Ingo did the changes
> that streamlined the dso->sname_alloc management with e993d10caeb6
> applied to his working tree.

Sorry Adrian, my bad, I thought Ingo had provided the patch, now I
realized my mistake, it was you 8-)
 
> - Arnaldo
>  
> > > I think it should be done as a prep, then apply a modified version of
> > > Stephanes, that doesn't deal with the alloc flag (more than using 'true'
> > > to say it is a malloc'ed chunk).
> > > 
> > > - Arnaldo
> > >  
> > >> diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
> > >> index 9fae484..54ed980 100644
> > >> --- a/tools/perf/util/dso.c
> > >> +++ b/tools/perf/util/dso.c
> > >> @@ -379,7 +379,7 @@ struct dso *dso__kernel_findnew(struct machine *machine,
> > >> const char *name,
> > >>  	 * processing we had no idea this was the kernel dso.
> > >>  	 */
> > >>  	if (dso != NULL) {
> > >> -		dso__set_short_name(dso, short_name);
> > >> +		dso__set_short_name(dso, short_name, false);
> > >>  		dso->kernel = dso_type;
> > >>  	}
> > >>
> > >> @@ -394,10 +394,13 @@ void dso__set_long_name(struct dso *dso, char *name)
> > >>  	dso->long_name_len = strlen(name);
> > >>  }
> > >>
> > >> -void dso__set_short_name(struct dso *dso, const char *name)
> > >> +void dso__set_short_name(struct dso *dso, const char *name, bool sname_alloc)
> > >>  {
> > >>  	if (name == NULL)
> > >>  		return;
> > >> +	if (dso->sname_alloc)
> > >> +		free((char *)dso->short_name);
> > >> +	dso->sname_alloc = sname_alloc;
> > >>  	dso->short_name = name;
> > >>  	dso->short_name_len = strlen(name);
> > >>  }
> > >> @@ -426,12 +429,7 @@ static void dso__set_basename(struct dso *dso)
> > >>  	if (!base)
> > >>  		return;
> > >>
> > >> -	if (dso->sname_alloc)
> > >> -		free((char *)dso->short_name);
> > >> -	else
> > >> -		dso->sname_alloc = 1;
> > >> -
> > >> -	dso__set_short_name(dso, base);
> > >> +	dso__set_short_name(dso, base, true);
> > >>  }
> > >>
> > >>  int dso__name_len(const struct dso *dso)
> > >> @@ -467,7 +465,7 @@ struct dso *dso__new(const char *name)
> > >>  		int i;
> > >>  		strcpy(dso->name, name);
> > >>  		dso__set_long_name(dso, dso->name);
> > >> -		dso__set_short_name(dso, dso->name);
> > >> +		dso__set_short_name(dso, dso->name, false);
> > >>  		for (i = 0; i < MAP__NR_TYPES; ++i)
> > >>  			dso->symbols[i] = dso->symbol_names[i] = RB_ROOT;
> > >>  		dso->cache = RB_ROOT;
> > >> diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
> > >> index 384f2d9..166463e 100644
> > >> --- a/tools/perf/util/dso.h
> > >> +++ b/tools/perf/util/dso.h
> > >> @@ -110,7 +110,7 @@ static inline void dso__set_loaded(struct dso *dso, enum
> > >> map_type type)
> > >>  struct dso *dso__new(const char *name);
> > >>  void dso__delete(struct dso *dso);
> > >>
> > >> -void dso__set_short_name(struct dso *dso, const char *name);
> > >> +void dso__set_short_name(struct dso *dso, const char *name, bool sname_alloc);
> > >>  void dso__set_long_name(struct dso *dso, char *name);
> > >>
> > >>  int dso__name_len(const struct dso *dso);
> > >>
> > >>
> > >>>
> > >>> - Arnaldo
> > >>>  
> > >>>> [Thread 0x7ffff70df700 (LWP 29561) exited]
> > >>>> *** Error in `/fast/mingo/tip/tools/perf/perf': munmap_chunk(): invalid pointer: 0x0000000000587371 ***
> > >>>> ======= Backtrace: =========
> > >>>> /lib64/libc.so.6[0x3e5907bbe7]
> > >>>> /fast/mingo/tip/tools/perf/perf(dso__delete+0xd9)[0x46da89]
> > >>>> /fast/mingo/tip/tools/perf/perf(machines__exit+0xad)[0x482e7d]
> > >>>> /fast/mingo/tip/tools/perf/perf(perf_session__delete+0xb6)[0x488c66]
> > >>>> /fast/mingo/tip/tools/perf/perf(cmd_top+0xf44)[0x4345f4]
> > >>>> /fast/mingo/tip/tools/perf/perf[0x419f95]
> > >>>> /fast/mingo/tip/tools/perf/perf(main+0x600)[0x419830]
> > >>>> /lib64/libc.so.6(__libc_start_main+0xf5)[0x3e59021b45]
> > >>>> /fast/mingo/tip/tools/perf/perf[0x4198fd]
> > >>>> ======= Memory map: ========
> > >>>>
> > >>>> Program received signal SIGABRT, Aborted.
> > >>>> 0x0000003e590359e9 in raise () from /lib64/libc.so.6
> > >>>> Missing separate debuginfos, use: debuginfo-install audit-libs-2.3.2-1.fc19.x86_64 bzip2-libs-1.0.6-8.fc19.x86_64 elfutils-libelf-0.156-5.fc19.x86_64 elfutils-libs-0.156-5.fc19.x86_64 glibc-2.17-19.fc19.x86_64 libgcc-4.8.2-1.fc19.x86_64 libunwind-1.1-2.fc19.x86_64 nss-softokn-freebl-3.15.2-2.fc19.x86_64 numactl-libs-2.0.8-4.fc19.x86_64 perl-libs-5.16.3-266.fc19.x86_64 python-libs-2.7.5-9.fc19.x86_64 slang-2.2.4-8.fc19.x86_64 xz-libs-5.1.2-4alpha.fc19.x86_64 zlib-1.2.7-10.fc19.x86_64
> > >>>> (gdb) 
> > >>>> (gdb) bt
> > >>>> #0  0x0000003e590359e9 in raise () from /lib64/libc.so.6
> > >>>> #1  0x0000003e590370f8 in abort () from /lib64/libc.so.6
> > >>>> #2  0x0000003e59075d17 in __libc_message () from /lib64/libc.so.6
> > >>>> #3  0x0000003e5907bbe7 in malloc_printerr () from /lib64/libc.so.6
> > >>>> #4  0x000000000046da89 in dso__delete (dso=0x8e46f0) at util/dso.c:496
> > >>>> #5  0x0000000000482e7d in dsos__delete (dsos=0x8e4490) at util/machine.c:72
> > >>>> #6  machine__exit (machine=<optimized out>) at util/machine.c:103
> > >>>> #7  machines__exit (machines=machines@entry=0x8e4438) at util/machine.c:123
> > >>>> #8  0x0000000000488c66 in perf_session__delete (session=0x8e4360) at util/session.c:155
> > >>>> #9  0x00000000004345f4 in __cmd_top (top=0x7fffffffb140) at builtin-top.c:985
> > >>>> #10 cmd_top (argc=<optimized out>, argv=<optimized out>, prefix=<optimized out>) at builtin-top.c:1210
> > >>>> #11 0x0000000000419f95 in run_builtin (p=p@entry=0x7ece88 <commands+264>, argc=argc@entry=2, argv=argv@entry=0x7fffffffe420) at perf.c:319
> > >>>> #12 0x0000000000419830 in handle_internal_command (argv=0x7fffffffe420, argc=2) at perf.c:376
> > >>>> #13 run_argv (argv=0x7fffffffe220, argcp=0x7fffffffe22c) at perf.c:420
> > >>>> #14 main (argc=2, argv=0x7fffffffe420) at perf.c:529
> > >>>> (gdb) 
> > >>>>
> > >>>> Running it on an up-to-date installation of Fedora 19.
> > >>>>
> > >>>> Thanks,
> > >>>>
> > >>>> 	Ingo
> > >>>
> > >>>
> > > 
> > > 

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@ghostprotocols.net> wrote:

> Em Tue, Dec 10, 2013 at 02:22:58PM +0200, Adrian Hunter escreveu:
> > On 10/12/13 14:10, Arnaldo Carvalho de Melo wrote:
> > > Em Tue, Dec 10, 2013 at 02:13:12PM +0200, Adrian Hunter escreveu:
> > >> On 10/12/13 13:44, Arnaldo Carvalho de Melo wrote:
> > >>> Em Tue, Dec 10, 2013 at 12:12:29PM +0100, Ingo Molnar escreveu:
> > >>>>
> > >>>> Hm, I've unpulled it because 'perf top' crashes on exit, in 
> > >>>> dso__delete():
> > >>>
> > >>> 495		if (dso->sname_alloc)
> > >>> 496			free((char *)dso->short_name)
> > >>>
> > >>> Yeah, must be that basename() patch from Stephane, I'll work on a fix
> > >>> and resubmit this batch, thanks for the report.
> > >>
> > >> The problem is sname_alloc is not maintained.  Perhaps it should be
> > >> set in dso__set_short_name() e.g.
> > > 
> > > Yeah, sounds better than having all callers manage that thing, quickie,
> > > was this with Stephane's patch applied?
> > 
> > Yes it was at
> > 	e993d10caeb6dca690dbaf86e1981ba240d1414a
> > 	perf symbols: fix bug in usage of the basename() function
> 
> Yes, this is the buggy patch, my question was if Ingo did the 
> changes that streamlined the dso->sname_alloc management with 
> e993d10caeb6 applied to his working tree.

My current perf/core head is:

  789790791ad2 tools/perf/build: Fix install dependency

which does not have e993d10c.

[ Btw., a small nit: the capitalization of the commit title looks 
  inconsistent. ]

Thanks,

	Ingo

[tip:perf/core] perf symbols: Remove open coded management of short_name_allocated member

[tip-bot for Adrian Hunter]

Commit-ID:  58a98c9cc583435784a93f23754128363b4cca94
Gitweb:     http://git.kernel.org/tip/58a98c9cc583435784a93f23754128363b4cca94
Author:     Adrian Hunter <adrian.hunter@intel.com>
AuthorDate: Tue, 10 Dec 2013 11:11:46 -0300
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 10 Dec 2013 16:51:08 -0300

perf symbols: Remove open coded management of  short_name_allocated member

Instead of expecting callers to set this member accodingly so that later
at dso destruction it can, if needed, be correctly free()d, make it a
requirement by passing it as a parameter to dso__set_short_name.

Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
CC: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Link: http://lkml.kernel.org/r/52A707A2.5020802@intel.com
[ Renamed the 'allocated' parameter to clearly indicate to which variable it refers to. ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/dso.c     | 17 +++++++++++------
 tools/perf/util/dso.h     |  2 +-
 tools/perf/util/machine.c |  3 +--
 3 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 55c9835..f8c8497 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -379,7 +379,7 @@ struct dso *dso__kernel_findnew(struct machine *machine, const char *name,
 	 * processing we had no idea this was the kernel dso.
 	 */
 	if (dso != NULL) {
-		dso__set_short_name(dso, short_name);
+		dso__set_short_name(dso, short_name, false);
 		dso->kernel = dso_type;
 	}
 
@@ -394,17 +394,22 @@ void dso__set_long_name(struct dso *dso, char *name)
 	dso->long_name_len = strlen(name);
 }
 
-void dso__set_short_name(struct dso *dso, const char *name)
+void dso__set_short_name(struct dso *dso, const char *name, bool name_allocated)
 {
 	if (name == NULL)
 		return;
-	dso->short_name = name;
-	dso->short_name_len = strlen(name);
+
+	if (dso->short_name_allocated)
+		free((char *)dso->short_name);
+
+	dso->short_name		  = name;
+	dso->short_name_len	  = strlen(name);
+	dso->short_name_allocated = name_allocated;
 }
 
 static void dso__set_basename(struct dso *dso)
 {
-	dso__set_short_name(dso, basename(dso->long_name));
+	dso__set_short_name(dso, basename(dso->long_name), false);
 }
 
 int dso__name_len(const struct dso *dso)
@@ -440,7 +445,7 @@ struct dso *dso__new(const char *name)
 		int i;
 		strcpy(dso->name, name);
 		dso__set_long_name(dso, dso->name);
-		dso__set_short_name(dso, dso->name);
+		dso__set_short_name(dso, dso->name, false);
 		for (i = 0; i < MAP__NR_TYPES; ++i)
 			dso->symbols[i] = dso->symbol_names[i] = RB_ROOT;
 		dso->cache = RB_ROOT;
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index 00a232d..8eceab7 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -110,7 +110,7 @@ static inline void dso__set_loaded(struct dso *dso, enum map_type type)
 struct dso *dso__new(const char *name);
 void dso__delete(struct dso *dso);
 
-void dso__set_short_name(struct dso *dso, const char *name);
+void dso__set_short_name(struct dso *dso, const char *name, bool name_allocated);
 void dso__set_long_name(struct dso *dso, char *name);
 
 int dso__name_len(const struct dso *dso);
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index f85da9a..09d5c66 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -935,8 +935,7 @@ static int machine__process_kernel_mmap_event(struct machine *machine,
 		if (name == NULL)
 			goto out_problem;
 
-		dso__set_short_name(map->dso, name);
-		map->dso->short_name_allocated = 1;
+		dso__set_short_name(map->dso, name, true);
 		map->end = map->start + event->mmap.len;
 	} else if (is_kernel_mmap) {
 		const char *symbol_name = (event->mmap.filename +

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Ingo Molnar]

* Adrian Hunter <adrian.hunter@intel.com> wrote:

> -void dso__set_short_name(struct dso *dso, const char *name)
> +void dso__set_short_name(struct dso *dso, const char *name, bool sname_alloc)
>  {
>  	if (name == NULL)
>  		return;
> +	if (dso->sname_alloc)
> +		free((char *)dso->short_name);
> +	dso->sname_alloc = sname_alloc;

Calling the function option the same as the field name is asking for 
trouble - I'd suggest 'new_sname_alloc' for the parameter, or so.

And I'd also remove the 'const' from struct dso::short_name, it 
probably does not help code generation, because 'dso' is passed in as 
const in all the non-lifetime methods anyway.

That way the cast can be dropped from the free().

Similar problems exist with the usage of 'short_name' - it overloads 
the field name which makes it somewhat confusing, and it's also 
sometimes inconsistently named, such as 'name' in 
dso__set_short_name().

Ditto for 'long_name' handling.

Also, the 'sname_alloc' name sucks, it does not make it obvious that 
it's related to 'short_name', hiding its true significance (and hiding 
the broken life time handling of the flag/pointer combo). I'd rename 
it to something more descriptive, like ->short_name_allocated - or I'd 
rename everything to 'sname'/'lname' naming for short/long names.

Every time one runs into a crash like this it's a canary signal that 
cleanliness principles need hardening.

Thanks,

	Ingo

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Ingo Molnar]

* Ingo Molnar <mingo@kernel.org> wrote:

> 
> * Adrian Hunter <adrian.hunter@intel.com> wrote:
> 
> > -void dso__set_short_name(struct dso *dso, const char *name)
> > +void dso__set_short_name(struct dso *dso, const char *name, bool sname_alloc)
> >  {
> >  	if (name == NULL)
> >  		return;
> > +	if (dso->sname_alloc)
> > +		free((char *)dso->short_name);
> > +	dso->sname_alloc = sname_alloc;
> 
> Calling the function option the same as the field name is asking for 
> trouble - I'd suggest 'new_sname_alloc' for the parameter, or so.
> 
> And I'd also remove the 'const' from struct dso::short_name, it 
> probably does not help code generation, because 'dso' is passed in as 
> const in all the non-lifetime methods anyway.
> 
> That way the cast can be dropped from the free().
> 
> Similar problems exist with the usage of 'short_name' - it overloads 
> the field name which makes it somewhat confusing, and it's also 
> sometimes inconsistently named, such as 'name' in 
> dso__set_short_name().
> 
> Ditto for 'long_name' handling.
> 
> Also, the 'sname_alloc' name sucks, it does not make it obvious that 
> it's related to 'short_name', hiding its true significance (and hiding 
> the broken life time handling of the flag/pointer combo). I'd rename 
> it to something more descriptive, like ->short_name_allocated - or I'd 
> rename everything to 'sname'/'lname' naming for short/long names.
> 
> Every time one runs into a crash like this it's a canary signal that 
> cleanliness principles need hardening.

More observations about util/dso.c:

 - dso__binary_type_file() should probably pass in 'const struct dso'

 - dso__binary_type_file()'s filename string parameter should be named 
   'filename', not 'file' ...

 - build_id__sprintf() looks fragile: every single use of it appears 
   to follow this pattern:

	build_id__sprintf(x, sizeof(x), ...)

   this could be simplified (and eliminating the possibility to typo a 
   bug) by changing the function to __build_id__snprintf() and adding 
   a build_id__sprintf() wrapper macro around it:

	build_id__sprintf(x, ...)

   that generates the size itself.

 - dso__binary_type_file() is a method without a verb, so it's unclear 
   what it does. It probably wants to be renamed to 
   dso__set_binary_type_file() or so?

 - dso_cache__find() probably wants to pass in a const rb_root.

 - 'struct dso *pos' should probably be named 'struct dso *dso_pos' or 
   so - 'pos' is frequently used for integer variable names so its use 
   for an object iterator feels confusing.

 - the 'head' argument of dsos__find() wants to be constified too I 
   guess

Thanks,

	Ingo

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Tue, Dec 10, 2013 at 01:46:58PM +0100, Ingo Molnar escreveu:
> * Ingo Molnar <mingo@kernel.org> wrote:
> > Every time one runs into a crash like this it's a canary signal that 
> > cleanliness principles need hardening.
> 
> More observations about util/dso.c:
> 
>  - dso__binary_type_file() should probably pass in 'const struct dso'
> 
>  - dso__binary_type_file()'s filename string parameter should be named 
>    'filename', not 'file' ...
> 
>  - build_id__sprintf() looks fragile: every single use of it appears 
>    to follow this pattern:
> 
> 	build_id__sprintf(x, sizeof(x), ...)
> 
>    this could be simplified (and eliminating the possibility to typo a 
>    bug) by changing the function to __build_id__snprintf() and adding 
>    a build_id__sprintf() wrapper macro around it:
> 
> 	build_id__sprintf(x, ...)
> 
>    that generates the size itself.

Right, like:

int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
                                     struct perf_event_attr *attrs, size_t nr_attrs);

#define perf_evlist__add_default_attrs(evlist, array) \
        __perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))

This is all a matter of being more dilligent and judicious at employing
these and other good practices.

But don't be shy to point anything (like you did here), as time permits
we can go on doing patchkits to address things people notice.

- Arnaldo

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Tue, Dec 10, 2013 at 01:18:01PM +0100, Ingo Molnar escreveu:
> 
> * Adrian Hunter <adrian.hunter@intel.com> wrote:
> 
> > -void dso__set_short_name(struct dso *dso, const char *name)
> > +void dso__set_short_name(struct dso *dso, const char *name, bool sname_alloc)
> >  {
> >  	if (name == NULL)
> >  		return;
> > +	if (dso->sname_alloc)
> > +		free((char *)dso->short_name);
> > +	dso->sname_alloc = sname_alloc;
> 
> Calling the function option the same as the field name is asking for 
> trouble - I'd suggest 'new_sname_alloc' for the parameter, or so.
> 
> And I'd also remove the 'const' from struct dso::short_name, it 
> probably does not help code generation, because 'dso' is passed in as 
> const in all the non-lifetime methods anyway.
 
> That way the cast can be dropped from the free().

Not that simple, there are multiple places that pass a constant
short_name, for instance:

	machine__get_kernel()
                kernel = dso__kernel_findnew(machine, vmlinux_name,
					     "[kernel]", DSO_TYPE_KERNEL);
			dso__set_short_name(dso, short_name);

So dso->short_name will point to "[kernel]", which is a const char *.

> Similar problems exist with the usage of 'short_name' - it overloads 
> the field name which makes it somewhat confusing, and it's also 
> sometimes inconsistently named, such as 'name' in 
> dso__set_short_name().
> 
> Ditto for 'long_name' handling.
> 
> Also, the 'sname_alloc' name sucks, it does not make it obvious that 

> it's related to 'short_name', hiding its true significance (and hiding 
> the broken life time handling of the flag/pointer combo). I'd rename 
> it to something more descriptive, like ->short_name_allocated - or I'd 
> rename everything to 'sname'/'lname' naming for short/long names.

Ok, we can use rename it to short_name_alloc, like we have
short_name_len.
 
> Every time one runs into a crash like this it's a canary signal that 
> cleanliness principles need hardening.

Hardening we go then!
 
> Thanks,
> 
> 	Ingo

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@ghostprotocols.net> wrote:

> Em Tue, Dec 10, 2013 at 01:18:01PM +0100, Ingo Molnar escreveu:
> > 
> > * Adrian Hunter <adrian.hunter@intel.com> wrote:
> > 
> > > -void dso__set_short_name(struct dso *dso, const char *name)
> > > +void dso__set_short_name(struct dso *dso, const char *name, bool sname_alloc)
> > >  {
> > >  	if (name == NULL)
> > >  		return;
> > > +	if (dso->sname_alloc)
> > > +		free((char *)dso->short_name);
> > > +	dso->sname_alloc = sname_alloc;
> > 
> > Calling the function option the same as the field name is asking for 
> > trouble - I'd suggest 'new_sname_alloc' for the parameter, or so.
> > 
> > And I'd also remove the 'const' from struct dso::short_name, it 
> > probably does not help code generation, because 'dso' is passed in as 
> > const in all the non-lifetime methods anyway.
>  
> > That way the cast can be dropped from the free().
> 
> Not that simple, there are multiple places that pass a constant
> short_name, for instance:
> 
> 	machine__get_kernel()
>                 kernel = dso__kernel_findnew(machine, vmlinux_name,
> 					     "[kernel]", DSO_TYPE_KERNEL);
> 			dso__set_short_name(dso, short_name);
> 
> So dso->short_name will point to "[kernel]", which is a const char *.

Okay, I guess the free() cast is fine then.

Thanks,

	Ingo

[GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pullimg,

- Arnaldo


Test results at the end of this message, as usual.

The following changes since commit 5804b11034a21e4287daaf017c5ad60ad7af8d67:

  Merge tag 'perf-core-for-mingo-4.19-20180815' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent (2018-08-18 13:11:51 +0200)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.19-20180820

for you to fetch changes up to 78303650e4cd873c6c4276c6fe3e768ff0b46d22:

  tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy' (2018-08-20 10:17:14 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

LLVM/clang/eBPF: (Arnaldo Carvalho de Melo)

- Allow passing options to llc in addition to to clang.

Hardware tracing: (Jack Henschel)

- Improve error message for PMU address filters, clarifying availability of
  that feature in hardware having hardware tracing such as Intel PT.

Python interface: (Jiri Olsa)

- Fix read_on_cpu() interface.

ELF/DWARF libraries: (Jiri Olsa)

- Fix handling of the combo compressed module file + decompressed associated
  debuginfo file.

Build (Rasmus Villemoes)

- Disable parallelism for 'make clean', avoiding multiple submakes deleting
  the same files and causing the build to fail on systems such as Yocto.

Kernel ABI copies: (Arnaldo Carvalho de Melo)

- Update tools's copy of x86's cpufeatures.h.

- Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'.

Miscellaneous: (Steven Rostedt)

- Change libtraceevent to SPDX License format.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (3):
      perf llvm: Allow passing options to llc in addition to clang
      tools arch x86: Update tools's copy of cpufeatures.h
      tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'

Jack Henschel (1):
      perf parser: Improve error message for PMU address filters

Jiri Olsa (15):
      perf tools: Get rid of dso__needs_decompress() call in read_object_code()
      perf tools: Get rid of dso__needs_decompress() call in symbol__disassemble()
      perf tools: Get rid of dso__needs_decompress() call in __open_dso()
      perf tools: Make decompress_to_file() function static
      perf tools: Make is_supported_compression() static
      perf tools: Add compression id into 'struct kmod_path'
      perf tools: Store compression id into struct dso
      perf tools: Use compression id in decompress_kmodule()
      perf tools: Move the temp file processing into decompress_kmodule
      perf tools: Add is_compressed callback to compressions array
      perf tools: Add lzma_is_compressed function
      perf tools: Add gzip_is_compressed function
      perf tools: Remove ext from struct kmod_path
      perf mmap: Store real cpu number in 'struct perf_mmap'
      perf python: Fix pyrf_evlist__read_on_cpu() interface

Rasmus Villemoes (1):
      perf tools: Disable parallelism for 'make clean'

Steven Rostedt (VMware) (1):
      tools lib traceevent: Change to SPDX License format

 tools/arch/x86/include/asm/cpufeatures.h |   3 +-
 tools/arch/x86/lib/memcpy_64.S           |   2 +-
 tools/lib/traceevent/event-parse.c       |  16 +---
 tools/lib/traceevent/event-plugin.c      |  16 +---
 tools/lib/traceevent/event-utils.h       |  16 +---
 tools/lib/traceevent/kbuffer-parse.c     |  17 +---
 tools/lib/traceevent/parse-filter.c      |  16 +---
 tools/lib/traceevent/parse-utils.c       |  16 +---
 tools/lib/traceevent/trace-seq.c         |  16 +---
 tools/perf/Makefile                      |   4 +-
 tools/perf/tests/code-reading.c          |   4 +-
 tools/perf/tests/kmod-path.c             | 136 +++++++++++++++----------------
 tools/perf/util/annotate.c               |   4 +-
 tools/perf/util/compress.h               |   2 +
 tools/perf/util/dso.c                    | 111 ++++++++++++-------------
 tools/perf/util/dso.h                    |  13 ++-
 tools/perf/util/evlist.c                 |   2 +-
 tools/perf/util/llvm-utils.c             |  31 ++++++-
 tools/perf/util/llvm-utils.h             |   9 ++
 tools/perf/util/lzma.c                   |  20 +++++
 tools/perf/util/machine.c                |   4 +-
 tools/perf/util/mmap.c                   |   3 +-
 tools/perf/util/mmap.h                   |   3 +-
 tools/perf/util/parse-events.c           |  20 ++---
 tools/perf/util/python.c                 |  20 ++++-
 tools/perf/util/zlib.c                   |  18 ++++
 26 files changed, 256 insertions(+), 266 deletions(-)

Test results:

The first ones are container (docker) based builds of tools/perf with
and without libelf support.  Where clang is available, it is also used
to build perf with/without libelf, and building with LIBCLANGLLVM=1
(built-in clang) with gcc and clang when clang and its devel libraries
are installed.

The objtool and samples/bpf/ builds are disabled now that I'm switching from
using the sources in a local volume to fetching them from a http server to
build it inside the container, to make it easier to build in a container cluster.
Those will come back later.

Several are cross builds, the ones with -x-ARCH and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like
debian:experimental-x-{arm64,mipsel}.

The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
with a variety of command line event specifications to then intercept the
sys_perf_event syscall to check that the perf_event_attr fields are set up as
expected, among a variety of other unit tests.

Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.

  # dm
   1 alpine:3.4                    : Ok   gcc (Alpine 5.3.0) 5.3.0
   2 alpine:3.5                    : Ok   gcc (Alpine 6.2.1) 6.2.1 20160822
   3 alpine:3.6                    : Ok   gcc (Alpine 6.3.0) 6.3.0
   4 alpine:3.7                    : Ok   gcc (Alpine 6.4.0) 6.4.0
   5 alpine:3.8                    : Ok   gcc (Alpine 6.4.0) 6.4.0
   6 alpine:edge                   : Ok   gcc (Alpine 6.4.0) 6.4.0
   7 amazonlinux:1                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28)
   8 amazonlinux:2                 : Ok   gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
   9 android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
  10 android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
  11 centos:5                      : Ok   gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
  12 centos:6                      : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
  13 centos:7                      : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28)
  14 debian:7                      : Ok   gcc (Debian 4.7.2-5) 4.7.2
  15 debian:8                      : Ok   gcc (Debian 4.9.2-10+deb8u1) 4.9.2
  16 debian:9                      : Ok   gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
  17 debian:experimental           : Ok   gcc (Debian 8.2.0-4) 8.2.0
  18 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 8.1.0-12) 8.1.0
  19 debian:experimental-x-mips    : Ok   mips-linux-gnu-gcc (Debian 8.1.0-12) 8.1.0
  20 debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 8.1.0-12) 8.1.0
  21 debian:experimental-x-mipsel  : Ok   mipsel-linux-gnu-gcc (Debian 8.1.0-12) 8.1.0
  22 fedora:20                     : Ok   gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
  23 fedora:21                     : Ok   gcc (GCC) 4.9.2 20150212 (Red Hat 4.9.2-6)
  24 fedora:22                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  25 fedora:23                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  26 fedora:24                     : Ok   gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1)
  27 fedora:24-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
  28 fedora:25                     : Ok   gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1)
  29 fedora:26                     : Ok   gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2)
  30 fedora:27                     : Ok   gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6)
  31 fedora:28                     : Ok   gcc (GCC) 8.1.1 20180712 (Red Hat 8.1.1-5)
  32 fedora:rawhide                : Ok   gcc (GCC) 8.0.1 20180324 (Red Hat 8.0.1-0.20)
  33 gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 7.3.0-r3 p1.4) 7.3.0
  34 mageia:5                      : Ok   gcc (GCC) 4.9.2
  35 mageia:6                      : Ok   gcc (Mageia 5.5.0-1.mga6) 5.5.0
  36 opensuse:13.2                 : Ok   gcc (SUSE Linux) 4.8.3 20140627 [gcc-4_8-branch revision 212064]
  37 opensuse:42.1                 : Ok   gcc (SUSE Linux) 4.8.5
  38 opensuse:42.2                 : Ok   gcc (SUSE Linux) 4.8.5
  39 opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5
  40 opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 7.3.1 20180323 [gcc-7-branch revision 258812]
  41 oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1)
  42 oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28.0.1)
  43 ubuntu:12.04.5                : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
  44 ubuntu:14.04.4                : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
  45 ubuntu:14.04.4-x-linaro-arm64 : Ok   aarch64-linux-gnu-gcc (Linaro GCC 5.5-2017.10) 5.5.0
  46 ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.10) 5.4.0 20160609
  47 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  48 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  49 ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  50 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  51 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  52 ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  53 ubuntu:16.10                  : Ok   gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
  54 ubuntu:17.10                  : Ok   gcc (Ubuntu 7.2.0-8ubuntu3.2) 7.2.0
  55 ubuntu:18.04                  : Ok   gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  56 ubuntu:18.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.3.0-16ubuntu3) 7.3.0
  57 ubuntu:18.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.3.0-16ubuntu3) 7.3.0
  58 ubuntu:18.04-x-m68k           : Ok   m68k-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  59 ubuntu:18.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  60 ubuntu:18.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  61 ubuntu:18.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  62 ubuntu:18.04-x-riscv64        : Ok   riscv64-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  63 ubuntu:18.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  64 ubuntu:18.04-x-sh4            : Ok   sh4-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  65 ubuntu:18.04-x-sparc64        : Ok   sparc64-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  66 ubuntu:18.10                  : Ok   gcc (Ubuntu 8.2.0-1ubuntu2) 8.2.0
  # 

  # uname -a
  Linux seventh 4.18.0-02978-g1eb46908b35d #1 SMP Wed Aug 15 16:55:17 -03 2018 x86_64 x86_64 x86_64 GNU/Linux
  # git log --oneline -1
  78303650e4cd (HEAD -> perf/core) tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'
  # perf version --build-options
  perf version 4.18.g783036
                   dwarf: [ on  ]  # HAVE_DWARF_SUPPORT
      dwarf_getlocations: [ on  ]  # HAVE_DWARF_GETLOCATIONS_SUPPORT
                   glibc: [ on  ]  # HAVE_GLIBC_SUPPORT
                    gtk2: [ on  ]  # HAVE_GTK2_SUPPORT
           syscall_table: [ on  ]  # HAVE_SYSCALL_TABLE_SUPPORT
                  libbfd: [ on  ]  # HAVE_LIBBFD_SUPPORT
                  libelf: [ on  ]  # HAVE_LIBELF_SUPPORT
                 libnuma: [ on  ]  # HAVE_LIBNUMA_SUPPORT
  numa_num_possible_cpus: [ on  ]  # HAVE_LIBNUMA_SUPPORT
                 libperl: [ on  ]  # HAVE_LIBPERL_SUPPORT
               libpython: [ on  ]  # HAVE_LIBPYTHON_SUPPORT
                libslang: [ on  ]  # HAVE_SLANG_SUPPORT
               libcrypto: [ on  ]  # HAVE_LIBCRYPTO_SUPPORT
               libunwind: [ on  ]  # HAVE_LIBUNWIND_SUPPORT
      libdw-dwarf-unwind: [ on  ]  # HAVE_DWARF_SUPPORT
                    zlib: [ on  ]  # HAVE_ZLIB_SUPPORT
                    lzma: [ on  ]  # HAVE_LZMA_SUPPORT
               get_cpuid: [ on  ]  # HAVE_AUXTRACE_SUPPORT
                     bpf: [ on  ]  # HAVE_LIBBPF_SUPPORT
  # perf test
   1: vmlinux symtab matches kallsyms                       : Ok
   2: Detect openat syscall event                           : Ok
   3: Detect openat syscall event on all cpus               : Ok
   4: Read samples using the mmap interface                 : Ok
   5: Test data source output                               : Ok
   6: Parse event definition strings                        : Ok
   7: Simple expression parser                              : Ok
   8: PERF_RECORD_* events & perf_sample fields             : Ok
   9: Parse perf pmu format                                 : Ok
  10: DSO data read                                         : Ok
  11: DSO data cache                                        : Ok
  12: DSO data reopen                                       : Ok
  13: Roundtrip evsel->name                                 : Ok
  14: Parse sched tracepoints fields                        : Ok
  15: syscalls:sys_enter_openat event fields                : Ok
  16: Setup struct perf_event_attr                          : Ok
  17: Match and link multiple hists                         : Ok
  18: 'import perf' in python                               : Ok
  19: Breakpoint overflow signal handler                    : Ok
  20: Breakpoint overflow sampling                          : Ok
  21: Breakpoint accounting                                 : Ok
  22: Number of exit events of a simple workload            : Ok
  23: Software clock events period values                   : Ok
  24: Object code reading                                   : Ok
  25: Sample parsing                                        : Ok
  26: Use a dummy software event to keep tracking           : Ok
  27: Parse with no sample_id_all bit set                   : Ok
  28: Filter hist entries                                   : Ok
  29: Lookup mmap thread                                    : Ok
  30: Share thread mg                                       : Ok
  31: Sort output of hist entries                           : Ok
  32: Cumulate child hist entries                           : Ok
  33: Track with sched_switch                               : Ok
  34: Filter fds with revents mask in a fdarray             : Ok
  35: Add fd to a fdarray, making it autogrow               : Ok
  36: kmod_path__parse                                      : Ok
  37: Thread map                                            : Ok
  38: LLVM search and compile                               :
  38.1: Basic BPF llvm compile                              : Ok
  38.2: kbuild searching                                    : Ok
  38.3: Compile source for BPF prologue generation          : Ok
  38.4: Compile source for BPF relocation                   : Ok
  39: Session topology                                      : Ok
  40: BPF filter                                            :
  40.1: Basic BPF filtering                                 : Ok
  40.2: BPF pinning                                         : Ok
  40.3: BPF prologue generation                             : Ok
  40.4: BPF relocation checker                              : Ok
  41: Synthesize thread map                                 : Ok
  42: Remove thread map                                     : Ok
  43: Synthesize cpu map                                    : Ok
  44: Synthesize stat config                                : Ok
  45: Synthesize stat                                       : Ok
  46: Synthesize stat round                                 : Ok
  47: Synthesize attr update                                : Ok
  48: Event times                                           : Ok
  49: Read backward ring buffer                             : Ok
  50: Print cpu map                                         : Ok
  51: Probe SDT events                                      : Ok
  52: is_printable_array                                    : Ok
  53: Print bitmap                                          : Ok
  54: perf hooks                                            : Ok
  55: builtin clang support                                 : Skip (not compiled in)
  56: unit_number__scnprintf                                : Ok
  57: mem2node                                              : Ok
  58: x86 rdpmc                                             : Ok
  59: Convert perf time to TSC                              : Ok
  60: DWARF unwind                                          : Ok
  61: x86 instruction decoder - new instructions            : Ok
  62: probe libc's inet_pton & backtrace it with ping       : Ok
  63: Check open filename arg using perf trace + vfs_getname: Ok
  64: Use vfs_getname probe to get syscall args filenames   : Ok
  65: Add vfs_getname probe to get syscall args filenames   : Ok
  # 

  $ make -C tools/perf build-test
  make: Entering directory '/home/acme/git/perf/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
           make_no_libbionic_O: make NO_LIBBIONIC=1
              make_no_libbpf_O: make NO_LIBBPF=1
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
            make_no_demangle_O: make NO_DEMANGLE=1
               make_no_slang_O: make NO_SLANG=1
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
                   make_help_O: make help
            make_no_libaudit_O: make NO_LIBAUDIT=1
                  make_debug_O: make DEBUG=1
                 make_static_O: make LDFLAGS=-static
         make_install_prefix_O: make install prefix=/tmp/krava
                   make_tags_O: make tags
            make_install_bin_O: make install-bin
                make_no_gtk2_O: make NO_GTK2=1
            make_no_auxtrace_O: make NO_AUXTRACE=1
              make_clean_all_O: make clean all
           make_no_libpython_O: make NO_LIBPYTHON=1
                 make_perf_o_O: make perf.o
                make_install_O: make install
           make_no_backtrace_O: make NO_BACKTRACE=1
                    make_doc_O: make doc
             make_no_libnuma_O: make NO_LIBNUMA=1
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
           make_no_libunwind_O: make NO_LIBUNWIND=1
             make_util_map_o_O: make util/map.o
                   make_pure_O: make
             make_no_libperl_O: make NO_LIBPERL=1
              make_no_libelf_O: make NO_LIBELF=1
         make_with_clangllvm_O: make LIBCLANGLLVM=1
                make_no_newt_O: make NO_NEWT=1
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
        make_with_babeltrace_O: make LIBBABELTRACE=1
                make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
  OK
  make: Leaving directory '/home/acme/git/perf/tools/perf'
  $

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pullimg,
> 
> - Arnaldo
> 
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit 5804b11034a21e4287daaf017c5ad60ad7af8d67:
> 
>   Merge tag 'perf-core-for-mingo-4.19-20180815' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent (2018-08-18 13:11:51 +0200)
> 
> are available in the Git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.19-20180820
> 
> for you to fetch changes up to 78303650e4cd873c6c4276c6fe3e768ff0b46d22:
> 
>   tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy' (2018-08-20 10:17:14 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> LLVM/clang/eBPF: (Arnaldo Carvalho de Melo)
> 
> - Allow passing options to llc in addition to to clang.
> 
> Hardware tracing: (Jack Henschel)
> 
> - Improve error message for PMU address filters, clarifying availability of
>   that feature in hardware having hardware tracing such as Intel PT.
> 
> Python interface: (Jiri Olsa)
> 
> - Fix read_on_cpu() interface.
> 
> ELF/DWARF libraries: (Jiri Olsa)
> 
> - Fix handling of the combo compressed module file + decompressed associated
>   debuginfo file.
> 
> Build (Rasmus Villemoes)
> 
> - Disable parallelism for 'make clean', avoiding multiple submakes deleting
>   the same files and causing the build to fail on systems such as Yocto.
> 
> Kernel ABI copies: (Arnaldo Carvalho de Melo)
> 
> - Update tools's copy of x86's cpufeatures.h.
> 
> - Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'.
> 
> Miscellaneous: (Steven Rostedt)
> 
> - Change libtraceevent to SPDX License format.
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (3):
>       perf llvm: Allow passing options to llc in addition to clang
>       tools arch x86: Update tools's copy of cpufeatures.h
>       tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'
> 
> Jack Henschel (1):
>       perf parser: Improve error message for PMU address filters
> 
> Jiri Olsa (15):
>       perf tools: Get rid of dso__needs_decompress() call in read_object_code()
>       perf tools: Get rid of dso__needs_decompress() call in symbol__disassemble()
>       perf tools: Get rid of dso__needs_decompress() call in __open_dso()
>       perf tools: Make decompress_to_file() function static
>       perf tools: Make is_supported_compression() static
>       perf tools: Add compression id into 'struct kmod_path'
>       perf tools: Store compression id into struct dso
>       perf tools: Use compression id in decompress_kmodule()
>       perf tools: Move the temp file processing into decompress_kmodule
>       perf tools: Add is_compressed callback to compressions array
>       perf tools: Add lzma_is_compressed function
>       perf tools: Add gzip_is_compressed function
>       perf tools: Remove ext from struct kmod_path
>       perf mmap: Store real cpu number in 'struct perf_mmap'
>       perf python: Fix pyrf_evlist__read_on_cpu() interface
> 
> Rasmus Villemoes (1):
>       perf tools: Disable parallelism for 'make clean'
> 
> Steven Rostedt (VMware) (1):
>       tools lib traceevent: Change to SPDX License format
> 
>  tools/arch/x86/include/asm/cpufeatures.h |   3 +-
>  tools/arch/x86/lib/memcpy_64.S           |   2 +-
>  tools/lib/traceevent/event-parse.c       |  16 +---
>  tools/lib/traceevent/event-plugin.c      |  16 +---
>  tools/lib/traceevent/event-utils.h       |  16 +---
>  tools/lib/traceevent/kbuffer-parse.c     |  17 +---
>  tools/lib/traceevent/parse-filter.c      |  16 +---
>  tools/lib/traceevent/parse-utils.c       |  16 +---
>  tools/lib/traceevent/trace-seq.c         |  16 +---
>  tools/perf/Makefile                      |   4 +-
>  tools/perf/tests/code-reading.c          |   4 +-
>  tools/perf/tests/kmod-path.c             | 136 +++++++++++++++----------------
>  tools/perf/util/annotate.c               |   4 +-
>  tools/perf/util/compress.h               |   2 +
>  tools/perf/util/dso.c                    | 111 ++++++++++++-------------
>  tools/perf/util/dso.h                    |  13 ++-
>  tools/perf/util/evlist.c                 |   2 +-
>  tools/perf/util/llvm-utils.c             |  31 ++++++-
>  tools/perf/util/llvm-utils.h             |   9 ++
>  tools/perf/util/lzma.c                   |  20 +++++
>  tools/perf/util/machine.c                |   4 +-
>  tools/perf/util/mmap.c                   |   3 +-
>  tools/perf/util/mmap.h                   |   3 +-
>  tools/perf/util/parse-events.c           |  20 ++---
>  tools/perf/util/python.c                 |  20 ++++-
>  tools/perf/util/zlib.c                   |  18 ++++
>  26 files changed, 256 insertions(+), 266 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling, contains a recently merged
tip/perf/urgent,

- Arnaldo

Test results at the end of this message, as usual.

The following changes since commit c2586cfbb905939b79b49a9121fb0a59a5668fd6:

  Merge remote-tracking branch 'tip/perf/urgent' into perf/core (2018-07-31 09:55:45 -0300)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.19-20180801

for you to fetch changes up to b912885ab75c7c8aa841c615108afd755d0b97f8:

  perf trace: Do not require --no-syscalls to suppress strace like output (2018-08-01 16:20:28 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

perf trace: (Arnaldo Carvalho de Melo)

- Do not require --no-syscalls to suppress strace like output, i.e.

     # perf trace -e sched:*switch

  will show just sched:sched_switch events, not strace-like formatted
  syscall events, use --syscalls to get the previous behaviour.

  If instead:

     # perf trace

  is used, i.e. no events specified, then --syscalls is implied and
  system wide strace like formatting will be applied to all syscalls.

  The behaviour when just a syscall subset is used with '-e' is unchanged:

     # perf trace -e *sleep,sched:*switch

  will work as before: just the 'nanosleep' syscall will be strace-like
  formatted plus the sched:sched_switch tracepoint event, system wide.

- Allow string table generators to use a default header dir, allowing
  use of them without parameters to see the table it generates on
  stdout, e.g.:

    $ tools/perf/trace/beauty/kvm_ioctl.sh
    static const char *kvm_ioctl_cmds[] = {
        [0x00] = "GET_API_VERSION",
        [0x01] = "CREATE_VM",
        [0x02] = "GET_MSR_INDEX_LIST",
        [0x03] = "CHECK_EXTENSION",
<BIG SNIP>
        [0xe0] = "CREATE_DEVICE",
        [0xe1] = "SET_DEVICE_ATTR",
        [0xe2] = "GET_DEVICE_ATTR",
        [0xe3] = "HAS_DEVICE_ATTR",
    };
    $

  See 'ls tools/perf/trace/beauty/*.sh' to see the available string
  table generators.

- Add a generator for IPPROTO_ socket's protocol constants.

perf record: (Kan Liang)

- Fix error out while applying initial delay and using LBR, due to
  the use of a PERF_TYPE_SOFTWARE/PERF_COUNT_SW_DUMMY event to track
  PERF_RECORD_MMAP events while waiting for the initial delay. Such
  events fail when configured asking PERF_SAMPLE_BRANCH_STACK in
  perf_event_attr.sample_type.

perf c2c: (Jiri Olsa)

- Fix report crash for empty browser, when processing a perf.data file
  without events of interest, either because not asked for in
  'perf record' or because the workload didn't triggered such events.

perf list: (Michael Petlan)

- Align metric group description format with PMU event description.

perf tests: (Sandipan Das)

- Fix indexing when invoking subtests, which caused BPF tests to
  get results for the next test in the list, with the last one
  reporting a failure.

eBPF:

- Fix installation directory for header files included from eBPF proggies,
  avoiding clashing with relative paths used to build other software projects
  such as glibc. (Thomas Richter)

- Show better message when failing to load an object. (Arnaldo Carvalho de Melo)

General: (Christophe Leroy)

- Allow overriding MAX_NR_CPUS at compile time, to make the tooling
  usable in systems with less memory, in time this has to be changed
  to properly allocate based on _NPROCESSORS_ONLN.

Architecture specific:

- Update arm64's ThunderX2 implementation defined pmu core events (Ganapatrao Kulkarni)

- Fix complex event name parsing in 'perf test' for PowerPC, where the 'umask' event
  modifier isn't present. (Sandipan Das)

CoreSight ARM hardware tracing: (Leo Yan)

- Fix start tracing packet handling.

- Support dummy address value for CS_ETM_TRACE_ON packet.

- Generate branch sample when receiving a CS_ETM_TRACE_ON packet.

- Generate branch sample for CS_ETM_TRACE_ON packet.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (9):
      perf trace beauty: Default header_dir to cwd to work without parms
      tools include uapi: Grab a copy of linux/in.h
      perf beauty: Add a generator for IPPROTO_ socket's protocol constants
      perf trace beauty: Do not print NULL strarray entries
      perf trace beauty: Add beautifiers for 'socket''s 'protocol' arg
      perf trace: Beautify the AF_INET & AF_INET6 'socket' syscall 'protocol' args
      perf bpf: Show better message when failing to load an object
      perf bpf: Include uapi/linux/bpf.h from the 'perf trace' script's bpf.h
      perf trace: Do not require --no-syscalls to suppress strace like output

Christophe Leroy (1):
      perf tools: Allow overriding MAX_NR_CPUS at compile time

Ganapatrao Kulkarni (1):
      perf vendor events arm64: Update ThunderX2 implementation defined pmu core events

Jiri Olsa (1):
      perf c2c report: Fix crash for empty browser

Kan Liang (1):
      perf evlist: Fix error out while applying initial delay and LBR

Leo Yan (4):
      perf cs-etm: Fix start tracing packet handling
      perf cs-etm: Support dummy address value for CS_ETM_TRACE_ON packet
      perf cs-etm: Generate branch sample when receiving a CS_ETM_TRACE_ON packet
      perf cs-etm: Generate branch sample for CS_ETM_TRACE_ON packet

Michael Petlan (1):
      perf list: Unify metric group description format with PMU event description

Sandipan Das (2):
      perf tests: Fix complex event name parsing
      perf tests: Fix indexing when invoking subtests

Thomas Richter (1):
      perf build: Fix installation directory for eBPF

 tools/include/uapi/linux/in.h                      | 301 +++++++++++++++++++++
 tools/perf/Makefile.config                         |   4 +-
 tools/perf/Makefile.perf                           |  10 +
 tools/perf/builtin-c2c.c                           |   3 +
 tools/perf/builtin-trace.c                         |  19 +-
 tools/perf/check-headers.sh                        |   1 +
 tools/perf/include/bpf/bpf.h                       |   3 +
 tools/perf/perf.h                                  |   2 +
 .../arch/arm64/cavium/thunderx2/core-imp-def.json  |  87 +++++-
 tools/perf/tests/builtin-test.c                    |   4 +-
 tools/perf/tests/parse-events.c                    |   2 +-
 tools/perf/trace/beauty/Build                      |   1 +
 tools/perf/trace/beauty/beauty.h                   |   3 +
 tools/perf/trace/beauty/drm_ioctl.sh               |   9 +-
 tools/perf/trace/beauty/kcmp_type.sh               |   2 +-
 tools/perf/trace/beauty/kvm_ioctl.sh               |   4 +-
 tools/perf/trace/beauty/madvise_behavior.sh        |   2 +-
 tools/perf/trace/beauty/perf_ioctl.sh              |   2 +-
 .../perf/trace/beauty/pkey_alloc_access_rights.sh  |   2 +-
 tools/perf/trace/beauty/sndrv_ctl_ioctl.sh         |   4 +-
 tools/perf/trace/beauty/sndrv_pcm_ioctl.sh         |   4 +-
 tools/perf/trace/beauty/socket.c                   |  28 ++
 tools/perf/trace/beauty/socket_ipproto.sh          |  11 +
 tools/perf/trace/beauty/vhost_virtio_ioctl.sh      |   6 +-
 tools/perf/util/bpf-loader.c                       |   4 +-
 tools/perf/util/cs-etm-decoder/cs-etm-decoder.h    |   1 +
 tools/perf/util/cs-etm.c                           |  68 ++++-
 tools/perf/util/evsel.c                            |  14 +
 tools/perf/util/metricgroup.c                      |   4 +-
 29 files changed, 556 insertions(+), 49 deletions(-)
 create mode 100644 tools/include/uapi/linux/in.h
 create mode 100644 tools/perf/trace/beauty/socket.c
 create mode 100755 tools/perf/trace/beauty/socket_ipproto.sh

Test results:

The first ones are container (docker) based builds of tools/perf with
and without libelf support.  Where clang is available, it is also used
to build perf with/without libelf, and building with LIBCLANGLLVM=1
(built-in clang) with gcc and clang when clang and its devel libraries
are installed.

The objtool and samples/bpf/ builds are disabled now that I'm switching from
using the sources in a local volume to fetching them from a http server to
build it inside the container, to make it easier to build in a container cluster.
Those will come back later.

Several are cross builds, the ones with -x-ARCH and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like
debian:experimental-x-{arm64,mipsel}.

The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
with a variety of command line event specifications to then intercept the
sys_perf_event syscall to check that the perf_event_attr fields are set up as
expected, among a variety of other unit tests.

Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.

  # dm
   1 alpine:3.4                    : Ok   gcc (Alpine 5.3.0) 5.3.0
   2 alpine:3.5                    : Ok   gcc (Alpine 6.2.1) 6.2.1 20160822
   3 alpine:3.6                    : Ok   gcc (Alpine 6.3.0) 6.3.0
   4 alpine:3.7                    : Ok   gcc (Alpine 6.4.0) 6.4.0
   5 alpine:edge                   : Ok   gcc (Alpine 6.4.0) 6.4.0
   6 amazonlinux:1                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28)
   7 amazonlinux:2                 : Ok   gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
   8 android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   9 android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
  10 centos:5                      : Ok   gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
  11 centos:6                      : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
  12 centos:7                      : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28)
  13 debian:7                      : Ok   gcc (Debian 4.7.2-5) 4.7.2
  14 debian:8                      : Ok   gcc (Debian 4.9.2-10+deb8u1) 4.9.2
  15 debian:9                      : Ok   gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
  16 debian:experimental           : Ok   gcc (Debian 8.2.0-1) 8.2.0
  17 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 8.1.0-12) 8.1.0
  18 debian:experimental-x-mips    : Ok   mips-linux-gnu-gcc (Debian 8.1.0-12) 8.1.0
  19 debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 7.3.0-18) 7.3.0
  20 debian:experimental-x-mipsel  : Ok   mipsel-linux-gnu-gcc (Debian 8.1.0-12) 8.1.0
  21 fedora:20                     : Ok   gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
  22 fedora:21                     : Ok   gcc (GCC) 4.9.2 20150212 (Red Hat 4.9.2-6)
  23 fedora:22                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  24 fedora:23                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  25 fedora:24                     : Ok   gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1)
  26 fedora:24-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
  27 fedora:25                     : Ok   gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1)
  28 fedora:26                     : Ok   gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2)
  29 fedora:27                     : Ok   gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
  30 fedora:28                     : Ok   gcc (GCC) 8.1.1 20180502 (Red Hat 8.1.1-1)
  31 fedora:rawhide                : Ok   gcc (GCC) 8.0.1 20180324 (Red Hat 8.0.1-0.20)
  32 gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 7.3.0-r3 p1.4) 7.3.0
  33 mageia:5                      : Ok   gcc (GCC) 4.9.2
  34 mageia:6                      : Ok   gcc (Mageia 5.5.0-1.mga6) 5.5.0
  35 opensuse:42.1                 : Ok   gcc (SUSE Linux) 4.8.5
  36 opensuse:42.2                 : Ok   gcc (SUSE Linux) 4.8.5
  37 opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5
  38 opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 7.3.1 20180323 [gcc-7-branch revision 258812]
  39 oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1)
  40 oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28.0.1)
  41 ubuntu:12.04.5                : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
  42 ubuntu:14.04.4                : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
  43 ubuntu:14.04.4-x-linaro-arm64 : Ok   aarch64-linux-gnu-gcc (Linaro GCC 5.5-2017.10) 5.5.0
  44 ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.10) 5.4.0 20160609
  45 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  46 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  47 ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  48 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  49 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  50 ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  51 ubuntu:16.10                  : Ok   gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
  52 ubuntu:17.04                  : Ok   gcc (Ubuntu 6.3.0-12ubuntu2) 6.3.0 20170406
  53 ubuntu:17.10                  : Ok   gcc (Ubuntu 7.2.0-8ubuntu3.2) 7.2.0
  54 ubuntu:18.04                  : Ok   gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  55 ubuntu:18.10                  : Ok   gcc (Ubuntu 8.2.0-1ubuntu2) 8.2.0
  #

  # uname -a
  # Linux seventh 4.17.9-100.fc27.x86_64 #1 SMP Mon Jul 23 22:35:38 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
  # git log --oneline -1
  b912885ab75c (HEAD -> perf/core) perf trace: Do not require --no-syscalls to suppress strace like output
  # perf version --build-options
  perf version 4.18.rc7.g822c262
                   dwarf: [ on  ]  # HAVE_DWARF_SUPPORT
      dwarf_getlocations: [ on  ]  # HAVE_DWARF_GETLOCATIONS_SUPPORT
                   glibc: [ on  ]  # HAVE_GLIBC_SUPPORT
                    gtk2: [ on  ]  # HAVE_GTK2_SUPPORT
           syscall_table: [ on  ]  # HAVE_SYSCALL_TABLE_SUPPORT
                  libbfd: [ on  ]  # HAVE_LIBBFD_SUPPORT
                  libelf: [ on  ]  # HAVE_LIBELF_SUPPORT
                 libnuma: [ on  ]  # HAVE_LIBNUMA_SUPPORT
  numa_num_possible_cpus: [ on  ]  # HAVE_LIBNUMA_SUPPORT
                 libperl: [ on  ]  # HAVE_LIBPERL_SUPPORT
               libpython: [ on  ]  # HAVE_LIBPYTHON_SUPPORT
                libslang: [ on  ]  # HAVE_SLANG_SUPPORT
               libcrypto: [ on  ]  # HAVE_LIBCRYPTO_SUPPORT
               libunwind: [ on  ]  # HAVE_LIBUNWIND_SUPPORT
      libdw-dwarf-unwind: [ on  ]  # HAVE_DWARF_SUPPORT
                    zlib: [ on  ]  # HAVE_ZLIB_SUPPORT
                    lzma: [ on  ]  # HAVE_LZMA_SUPPORT
               get_cpuid: [ on  ]  # HAVE_AUXTRACE_SUPPORT
                     bpf: [ on  ]  # HAVE_LIBBPF_SUPPORT
  # perf test
   1: vmlinux symtab matches kallsyms                       : Ok
   2: Detect openat syscall event                           : Ok
   3: Detect openat syscall event on all cpus               : Ok
   4: Read samples using the mmap interface                 : Ok
   5: Test data source output                               : Ok
   6: Parse event definition strings                        : Ok
   7: Simple expression parser                              : Ok
   8: PERF_RECORD_* events & perf_sample fields             : Ok
   9: Parse perf pmu format                                 : Ok
  10: DSO data read                                         : Ok
  11: DSO data cache                                        : Ok
  12: DSO data reopen                                       : Ok
  13: Roundtrip evsel->name                                 : Ok
  14: Parse sched tracepoints fields                        : Ok
  15: syscalls:sys_enter_openat event fields                : Ok
  16: Setup struct perf_event_attr                          : Ok
  17: Match and link multiple hists                         : Ok
  18: 'import perf' in python                               : Ok
  19: Breakpoint overflow signal handler                    : Ok
  20: Breakpoint overflow sampling                          : Ok
  21: Breakpoint accounting                                 : Ok
  22: Number of exit events of a simple workload            : Ok
  23: Software clock events period values                   : Ok
  24: Object code reading                                   : Ok
  25: Sample parsing                                        : Ok
  26: Use a dummy software event to keep tracking           : Ok
  27: Parse with no sample_id_all bit set                   : Ok
  28: Filter hist entries                                   : Ok
  29: Lookup mmap thread                                    : Ok
  30: Share thread mg                                       : Ok
  31: Sort output of hist entries                           : Ok
  32: Cumulate child hist entries                           : Ok
  33: Track with sched_switch                               : Ok
  34: Filter fds with revents mask in a fdarray             : Ok
  35: Add fd to a fdarray, making it autogrow               : Ok
  36: kmod_path__parse                                      : Ok
  37: Thread map                                            : Ok
  38: LLVM search and compile                               :
  38.1: Basic BPF llvm compile                              : Ok
  38.2: kbuild searching                                    : Ok
  38.3: Compile source for BPF prologue generation          : Ok
  38.4: Compile source for BPF relocation                   : Ok
  39: Session topology                                      : Ok
  40: BPF filter                                            :
  40.1: Basic BPF filtering                                 : Ok
  40.2: BPF pinning                                         : Ok
  40.3: BPF prologue generation                             : Ok
  40.4: BPF relocation checker                              : Ok
  41: Synthesize thread map                                 : Ok
  42: Remove thread map                                     : Ok
  43: Synthesize cpu map                                    : Ok
  44: Synthesize stat config                                : Ok
  45: Synthesize stat                                       : Ok
  46: Synthesize stat round                                 : Ok
  47: Synthesize attr update                                : Ok
  48: Event times                                           : Ok
  49: Read backward ring buffer                             : Ok
  50: Print cpu map                                         : Ok
  51: Probe SDT events                                      : Ok
  52: is_printable_array                                    : Ok
  53: Print bitmap                                          : Ok
  54: perf hooks                                            : Ok
  55: builtin clang support                                 : Skip (not compiled in)
  56: unit_number__scnprintf                                : Ok
  57: mem2node                                              : Ok
  58: x86 rdpmc                                             : Ok
  59: Convert perf time to TSC                              : Ok
  60: DWARF unwind                                          : Ok
  61: x86 instruction decoder - new instructions            : Ok
  62: probe libc's inet_pton & backtrace it with ping       : Ok
  63: Check open filename arg using perf trace + vfs_getname: Ok
  64: Use vfs_getname probe to get syscall args filenames   : Ok
  65: Add vfs_getname probe to get syscall args filenames   : Ok
  #
  
  $ make -C tools/perf build-test
  make: Entering directory '/home/acme/git/perf/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
           make_no_libunwind_O: make NO_LIBUNWIND=1
                make_no_newt_O: make NO_NEWT=1
            make_install_bin_O: make install-bin
         make_install_prefix_O: make install prefix=/tmp/krava
                    make_doc_O: make doc
                 make_perf_o_O: make perf.o
             make_util_map_o_O: make util/map.o
           make_no_libbionic_O: make NO_LIBBIONIC=1
            make_no_demangle_O: make NO_DEMANGLE=1
           make_no_libpython_O: make NO_LIBPYTHON=1
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
                   make_help_O: make help
               make_no_slang_O: make NO_SLANG=1
             make_no_libperl_O: make NO_LIBPERL=1
        make_with_babeltrace_O: make LIBBABELTRACE=1
                 make_static_O: make LDFLAGS=-static
                   make_pure_O: make
                   make_tags_O: make tags
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
              make_no_libelf_O: make NO_LIBELF=1
                make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
                make_install_O: make install
         make_with_clangllvm_O: make LIBCLANGLLVM=1
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
            make_no_libaudit_O: make NO_LIBAUDIT=1
                make_no_gtk2_O: make NO_GTK2=1
             make_no_libnuma_O: make NO_LIBNUMA=1
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
            make_no_auxtrace_O: make NO_AUXTRACE=1
              make_no_libbpf_O: make NO_LIBBPF=1
              make_clean_all_O: make clean all
           make_no_backtrace_O: make NO_BACKTRACE=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
                  make_debug_O: make DEBUG=1
                 make_cscope_O: make cscope
  OK
  make: Leaving directory '/home/acme/git/perf/tools/perf'
  $

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling, contains a recently merged
> tip/perf/urgent,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit c2586cfbb905939b79b49a9121fb0a59a5668fd6:
> 
>   Merge remote-tracking branch 'tip/perf/urgent' into perf/core (2018-07-31 09:55:45 -0300)
> 
> are available in the Git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.19-20180801
> 
> for you to fetch changes up to b912885ab75c7c8aa841c615108afd755d0b97f8:
> 
>   perf trace: Do not require --no-syscalls to suppress strace like output (2018-08-01 16:20:28 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> perf trace: (Arnaldo Carvalho de Melo)
> 
> - Do not require --no-syscalls to suppress strace like output, i.e.
> 
>      # perf trace -e sched:*switch
> 
>   will show just sched:sched_switch events, not strace-like formatted
>   syscall events, use --syscalls to get the previous behaviour.
> 
>   If instead:
> 
>      # perf trace
> 
>   is used, i.e. no events specified, then --syscalls is implied and
>   system wide strace like formatting will be applied to all syscalls.
> 
>   The behaviour when just a syscall subset is used with '-e' is unchanged:
> 
>      # perf trace -e *sleep,sched:*switch
> 
>   will work as before: just the 'nanosleep' syscall will be strace-like
>   formatted plus the sched:sched_switch tracepoint event, system wide.
> 
> - Allow string table generators to use a default header dir, allowing
>   use of them without parameters to see the table it generates on
>   stdout, e.g.:
> 
>     $ tools/perf/trace/beauty/kvm_ioctl.sh
>     static const char *kvm_ioctl_cmds[] = {
>         [0x00] = "GET_API_VERSION",
>         [0x01] = "CREATE_VM",
>         [0x02] = "GET_MSR_INDEX_LIST",
>         [0x03] = "CHECK_EXTENSION",
> <BIG SNIP>
>         [0xe0] = "CREATE_DEVICE",
>         [0xe1] = "SET_DEVICE_ATTR",
>         [0xe2] = "GET_DEVICE_ATTR",
>         [0xe3] = "HAS_DEVICE_ATTR",
>     };
>     $
> 
>   See 'ls tools/perf/trace/beauty/*.sh' to see the available string
>   table generators.
> 
> - Add a generator for IPPROTO_ socket's protocol constants.
> 
> perf record: (Kan Liang)
> 
> - Fix error out while applying initial delay and using LBR, due to
>   the use of a PERF_TYPE_SOFTWARE/PERF_COUNT_SW_DUMMY event to track
>   PERF_RECORD_MMAP events while waiting for the initial delay. Such
>   events fail when configured asking PERF_SAMPLE_BRANCH_STACK in
>   perf_event_attr.sample_type.
> 
> perf c2c: (Jiri Olsa)
> 
> - Fix report crash for empty browser, when processing a perf.data file
>   without events of interest, either because not asked for in
>   'perf record' or because the workload didn't triggered such events.
> 
> perf list: (Michael Petlan)
> 
> - Align metric group description format with PMU event description.
> 
> perf tests: (Sandipan Das)
> 
> - Fix indexing when invoking subtests, which caused BPF tests to
>   get results for the next test in the list, with the last one
>   reporting a failure.
> 
> eBPF:
> 
> - Fix installation directory for header files included from eBPF proggies,
>   avoiding clashing with relative paths used to build other software projects
>   such as glibc. (Thomas Richter)
> 
> - Show better message when failing to load an object. (Arnaldo Carvalho de Melo)
> 
> General: (Christophe Leroy)
> 
> - Allow overriding MAX_NR_CPUS at compile time, to make the tooling
>   usable in systems with less memory, in time this has to be changed
>   to properly allocate based on _NPROCESSORS_ONLN.
> 
> Architecture specific:
> 
> - Update arm64's ThunderX2 implementation defined pmu core events (Ganapatrao Kulkarni)
> 
> - Fix complex event name parsing in 'perf test' for PowerPC, where the 'umask' event
>   modifier isn't present. (Sandipan Das)
> 
> CoreSight ARM hardware tracing: (Leo Yan)
> 
> - Fix start tracing packet handling.
> 
> - Support dummy address value for CS_ETM_TRACE_ON packet.
> 
> - Generate branch sample when receiving a CS_ETM_TRACE_ON packet.
> 
> - Generate branch sample for CS_ETM_TRACE_ON packet.
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (9):
>       perf trace beauty: Default header_dir to cwd to work without parms
>       tools include uapi: Grab a copy of linux/in.h
>       perf beauty: Add a generator for IPPROTO_ socket's protocol constants
>       perf trace beauty: Do not print NULL strarray entries
>       perf trace beauty: Add beautifiers for 'socket''s 'protocol' arg
>       perf trace: Beautify the AF_INET & AF_INET6 'socket' syscall 'protocol' args
>       perf bpf: Show better message when failing to load an object
>       perf bpf: Include uapi/linux/bpf.h from the 'perf trace' script's bpf.h
>       perf trace: Do not require --no-syscalls to suppress strace like output
> 
> Christophe Leroy (1):
>       perf tools: Allow overriding MAX_NR_CPUS at compile time
> 
> Ganapatrao Kulkarni (1):
>       perf vendor events arm64: Update ThunderX2 implementation defined pmu core events
> 
> Jiri Olsa (1):
>       perf c2c report: Fix crash for empty browser
> 
> Kan Liang (1):
>       perf evlist: Fix error out while applying initial delay and LBR
> 
> Leo Yan (4):
>       perf cs-etm: Fix start tracing packet handling
>       perf cs-etm: Support dummy address value for CS_ETM_TRACE_ON packet
>       perf cs-etm: Generate branch sample when receiving a CS_ETM_TRACE_ON packet
>       perf cs-etm: Generate branch sample for CS_ETM_TRACE_ON packet
> 
> Michael Petlan (1):
>       perf list: Unify metric group description format with PMU event description
> 
> Sandipan Das (2):
>       perf tests: Fix complex event name parsing
>       perf tests: Fix indexing when invoking subtests
> 
> Thomas Richter (1):
>       perf build: Fix installation directory for eBPF
> 
>  tools/include/uapi/linux/in.h                      | 301 +++++++++++++++++++++
>  tools/perf/Makefile.config                         |   4 +-
>  tools/perf/Makefile.perf                           |  10 +
>  tools/perf/builtin-c2c.c                           |   3 +
>  tools/perf/builtin-trace.c                         |  19 +-
>  tools/perf/check-headers.sh                        |   1 +
>  tools/perf/include/bpf/bpf.h                       |   3 +
>  tools/perf/perf.h                                  |   2 +
>  .../arch/arm64/cavium/thunderx2/core-imp-def.json  |  87 +++++-
>  tools/perf/tests/builtin-test.c                    |   4 +-
>  tools/perf/tests/parse-events.c                    |   2 +-
>  tools/perf/trace/beauty/Build                      |   1 +
>  tools/perf/trace/beauty/beauty.h                   |   3 +
>  tools/perf/trace/beauty/drm_ioctl.sh               |   9 +-
>  tools/perf/trace/beauty/kcmp_type.sh               |   2 +-
>  tools/perf/trace/beauty/kvm_ioctl.sh               |   4 +-
>  tools/perf/trace/beauty/madvise_behavior.sh        |   2 +-
>  tools/perf/trace/beauty/perf_ioctl.sh              |   2 +-
>  .../perf/trace/beauty/pkey_alloc_access_rights.sh  |   2 +-
>  tools/perf/trace/beauty/sndrv_ctl_ioctl.sh         |   4 +-
>  tools/perf/trace/beauty/sndrv_pcm_ioctl.sh         |   4 +-
>  tools/perf/trace/beauty/socket.c                   |  28 ++
>  tools/perf/trace/beauty/socket_ipproto.sh          |  11 +
>  tools/perf/trace/beauty/vhost_virtio_ioctl.sh      |   6 +-
>  tools/perf/util/bpf-loader.c                       |   4 +-
>  tools/perf/util/cs-etm-decoder/cs-etm-decoder.h    |   1 +
>  tools/perf/util/cs-etm.c                           |  68 ++++-
>  tools/perf/util/evsel.c                            |  14 +
>  tools/perf/util/metricgroup.c                      |   4 +-
>  29 files changed, 556 insertions(+), 49 deletions(-)
>  create mode 100644 tools/include/uapi/linux/in.h
>  create mode 100644 tools/perf/trace/beauty/socket.c
>  create mode 100755 tools/perf/trace/beauty/socket_ipproto.sh

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

Test results at the end of this message, as usual.

The following changes since commit 33ea4b24277b06dbc55d7f5772a46f029600255e:

  perf/core: Implement the 'perf_uprobe' PMU (2018-02-06 11:29:28 +0100)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.17-20180206

for you to fetch changes up to 52a37001d51a320c1019269fb3ba473a1363650d:

  perf test: Fix test trace+probe_libc_inet_pton.sh for s390x (2018-02-06 10:46:58 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

- perf_mmap overwrite mode overhaul, prep work to get 'perf top'
  using it, making it bearable to use it in large core count systems
  such as Knights Landing/Mill Intel systems (Kan Liang)

- Add perf vendor JSON metrics for ARM Cortex-A53 Processor (William Cohen)

- Use strtoull() instead of home grown function (Andy Shevchenko)

- Document missing 'perf data --force' option (Sangwon Hong)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Andy Shevchenko (1):
      perf tools: Substitute yet another strtoull()

Arnaldo Carvalho de Melo (1):
      perf evsel: Expose the perf_missing_features struct

Kan Liang (16):
      perf evlist: Remove stale mmap read for backward
      perf mmap: Recalculate size for overwrite mode
      perf mmap: Cleanup perf_mmap__push()
      perf mmap: Introduce perf_mmap__read_init()
      perf mmap: Add new return value logic for perf_mmap__read_init()
      perf mmap: Discard 'prev' in perf_mmap__read()
      perf mmap: Introduce perf_mmap__read_done()
      perf mmap: Introduce perf_mmap__read_event()
      perf test: Update mmap read functions for backward-ring-buffer test
      perf mmap: Discard legacy interface for mmap read
      perf top: Check per-event overwrite term
      perf top: Add overwrite fall back
      perf hists browser: Add parameter to disable lost event warning
      perf top: Remove lost events checking
      perf top: Switch default mode to overwrite mode
      perf top: Check the latency of perf_top__mmap_read()

Sangwon Hong (1):
      perf data: Document missing --force option

Thomas Richter (1):
      perf test: Fix test trace+probe_libc_inet_pton.sh for s390x

William Cohen (1):
      perf vendor events aarch64: Add JSON metrics for ARM Cortex-A53 Processor

 tools/perf/Documentation/perf-data.txt             |   4 +
 tools/perf/builtin-c2c.c                           |   4 +-
 tools/perf/builtin-report.c                        |   3 +-
 tools/perf/builtin-top.c                           | 150 ++++++++++++++++++++-
 .../pmu-events/arch/arm64/cortex-a53/branch.json   |  27 ++++
 .../perf/pmu-events/arch/arm64/cortex-a53/bus.json |  22 +++
 .../pmu-events/arch/arm64/cortex-a53/cache.json    |  27 ++++
 .../pmu-events/arch/arm64/cortex-a53/memory.json   |  22 +++
 .../pmu-events/arch/arm64/cortex-a53/other.json    |  32 +++++
 .../pmu-events/arch/arm64/cortex-a53/pipeline.json |  52 +++++++
 tools/perf/pmu-events/arch/arm64/mapfile.csv       |   1 +
 tools/perf/tests/backward-ring-buffer.c            |   7 +-
 .../perf/tests/shell/trace+probe_libc_inet_pton.sh |  23 +++-
 tools/perf/ui/browsers/hists.c                     |  38 ++++--
 tools/perf/ui/browsers/hists.h                     |   3 +-
 tools/perf/util/evlist.c                           |  17 ---
 tools/perf/util/evlist.h                           |   4 -
 tools/perf/util/evsel.c                            |  12 +-
 tools/perf/util/evsel.h                            |  14 ++
 tools/perf/util/hist.h                             |   6 +-
 tools/perf/util/mmap.c                             | 141 ++++++++++---------
 tools/perf/util/mmap.h                             |  10 +-
 tools/perf/util/util.c                             |  24 +---
 23 files changed, 492 insertions(+), 151 deletions(-)
 create mode 100644 tools/perf/pmu-events/arch/arm64/cortex-a53/branch.json
 create mode 100644 tools/perf/pmu-events/arch/arm64/cortex-a53/bus.json
 create mode 100644 tools/perf/pmu-events/arch/arm64/cortex-a53/cache.json
 create mode 100644 tools/perf/pmu-events/arch/arm64/cortex-a53/memory.json
 create mode 100644 tools/perf/pmu-events/arch/arm64/cortex-a53/other.json
 create mode 100644 tools/perf/pmu-events/arch/arm64/cortex-a53/pipeline.json

Test results:

The first ones are container (docker) based builds of tools/perf with and
without libelf support.  Where clang is available, it is also used to build
perf with/without libelf.

The objtool and samples/bpf/ builds are disabled now that I'm switching from
using the sources in a local volume to fetching them from a http server to
build it inside the container, to make it easier to build in a container cluster.
Those will come back later.

Several are cross builds, the ones with -x-ARCH and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like
debian:experimental-x-{arm64,mipsel}.

The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
with a variety of command line event specifications to then intercept the
sys_perf_event syscall to check that the perf_event_attr fields are set up as
expected, among a variety of other unit tests.

Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.

  # dm
   1 alpine:3.4                    : Ok   gcc (Alpine 5.3.0) 5.3.0
   2 alpine:3.5                    : Ok   gcc (Alpine 6.2.1) 6.2.1 20160822
   3 alpine:3.6                    : Ok   gcc (Alpine 6.3.0) 6.3.0
   4 alpine:edge                   : Ok   gcc (Alpine 6.4.0) 6.4.0
   5 amazonlinux:1                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-11)
   6 amazonlinux:2                 : Ok   gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2)
   7 android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   8 android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   9 centos:5                      : Ok   gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
  10 centos:6                      : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
  11 centos:7                      : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16)
  12 debian:7                      : Ok   gcc (Debian 4.7.2-5) 4.7.2
  13 debian:8                      : Ok   gcc (Debian 4.9.2-10) 4.9.2
  14 debian:9                      : Ok   gcc (Debian 6.3.0-18) 6.3.0 20170516
  15 debian:experimental           : Ok   gcc (Debian 7.2.0-17) 7.2.1 20171205
  16 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  17 debian:experimental-x-mips    : Ok   mips-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  18 debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 7.2.0-11) 7.2.0
  19 debian:experimental-x-mipsel  : Ok   mipsel-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  20 fedora:20                     : Ok   gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
  21 fedora:21                     : Ok   gcc (GCC) 4.9.2 20150212 (Red Hat 4.9.2-6)
  22 fedora:22                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  23 fedora:23                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  24 fedora:24                     : Ok   gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1)
  25 fedora:24-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
  26 fedora:25                     : Ok   gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1)
  27 fedora:26                     : Ok   gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2)
  28 fedora:27                     : Ok   gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2)
  29 fedora:rawhide                : Ok   gcc (GCC) 7.2.1 20170829 (Red Hat 7.2.1-1)
  30 gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 6.4.0-r1 p1.3) 6.4.0
  31 mageia:5                      : Ok   gcc (GCC) 4.9.2
  32 mageia:6                      : Ok   gcc (Mageia 5.4.0-5.mga6) 5.4.0
  33 opensuse:42.1                 : Ok   gcc (SUSE Linux) 4.8.5
  34 opensuse:42.2                 : Ok   gcc (SUSE Linux) 4.8.5
  35 opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5
  36 opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 7.3.0
  37 oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
  38 oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16)
  39 ubuntu:12.04.5                : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
  40 ubuntu:14.04.4                : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
  41 ubuntu:14.04.4-x-linaro-arm64 : Ok   aarch64-linux-gnu-gcc (Linaro GCC 5.4-2017.05) 5.4.1 20170404
  42 ubuntu:15.04                  : Ok   gcc (Ubuntu 4.9.2-10ubuntu13) 4.9.2
  43 ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.5) 5.4.0 20160609
  44 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  45 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  46 ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  47 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609
  48 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  49 ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  50 ubuntu:16.10                  : Ok   gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
  51 ubuntu:17.04                  : Ok   gcc (Ubuntu 6.3.0-12ubuntu2) 6.3.0 20170406
  52 ubuntu:17.10                  : Ok   gcc (Ubuntu 7.2.0-8ubuntu3) 7.2.0
  53 ubuntu:18.04                  : Ok   gcc (Ubuntu 7.2.0-16ubuntu1) 7.2.0

  # uname -a
  Linux jouet 4.15.0-rc9+ #7 SMP Mon Jan 22 18:16:36 -03 2018 x86_64 x86_64 x86_64 GNU/Linux
  # perf test
   1: vmlinux symtab matches kallsyms                       : Ok
   2: Detect openat syscall event                           : Ok
   3: Detect openat syscall event on all cpus               : Ok
   4: Read samples using the mmap interface                 : Ok
   5: Test data source output                               : Ok
   6: Parse event definition strings                        : Ok
   7: Simple expression parser                              : Ok
   8: PERF_RECORD_* events & perf_sample fields             : Ok
   9: Parse perf pmu format                                 : Ok
  10: DSO data read                                         : Ok
  11: DSO data cache                                        : Ok
  12: DSO data reopen                                       : Ok
  13: Roundtrip evsel->name                                 : Ok
  14: Parse sched tracepoints fields                        : Ok
  15: syscalls:sys_enter_openat event fields                : Ok
  16: Setup struct perf_event_attr                          : Ok
  17: Match and link multiple hists                         : Ok
  18: 'import perf' in python                               : Ok
  19: Breakpoint overflow signal handler                    : Ok
  20: Breakpoint overflow sampling                          : Ok
  21: Number of exit events of a simple workload            : Ok
  22: Software clock events period values                   : Ok
  23: Object code reading                                   : Ok
  24: Sample parsing                                        : Ok
  25: Use a dummy software event to keep tracking           : Ok
  26: Parse with no sample_id_all bit set                   : Ok
  27: Filter hist entries                                   : Ok
  28: Lookup mmap thread                                    : Ok
  29: Share thread mg                                       : Ok
  30: Sort output of hist entries                           : Ok
  31: Cumulate child hist entries                           : Ok
  32: Track with sched_switch                               : Ok
  33: Filter fds with revents mask in a fdarray             : Ok
  34: Add fd to a fdarray, making it autogrow               : Ok
  35: kmod_path__parse                                      : Ok
  36: Thread map                                            : Ok
  37: LLVM search and compile                               :
  37.1: Basic BPF llvm compile                              : Ok
  37.2: kbuild searching                                    : Ok
  37.3: Compile source for BPF prologue generation          : Ok
  37.4: Compile source for BPF relocation                   : Ok
  38: Session topology                                      : Ok
  39: BPF filter                                            :
  39.1: Basic BPF filtering                                 : Ok
  39.2: BPF pinning                                         : Ok
  39.3: BPF prologue generation                             : Ok
  39.4: BPF relocation checker                              : Ok
  40: Synthesize thread map                                 : Ok
  41: Remove thread map                                     : Ok
  42: Synthesize cpu map                                    : Ok
  43: Synthesize stat config                                : Ok
  44: Synthesize stat                                       : Ok
  45: Synthesize stat round                                 : Ok
  46: Synthesize attr update                                : Ok
  47: Event times                                           : Ok
  48: Read backward ring buffer                             : Ok
  49: Print cpu map                                         : Ok
  50: Probe SDT events                                      : Ok
  51: is_printable_array                                    : Ok
  52: Print bitmap                                          : Ok
  53: perf hooks                                            : Ok
  54: builtin clang support                                 : Skip (not compiled in)
  55: unit_number__scnprintf                                : Ok
  56: x86 rdpmc                                             : Ok
  57: Convert perf time to TSC                              : Ok
  58: DWARF unwind                                          : Ok
  59: x86 instruction decoder - new instructions            : Ok
  60: Use vfs_getname probe to get syscall args filenames   : Ok
  61: probe libc's inet_pton & backtrace it with ping       : Ok
  62: Check open filename arg using perf trace + vfs_getname: Ok
  63: Add vfs_getname probe to get syscall args filenames   : Ok
  #

  $ make -C tools/perf build-test
  make: Entering directory '/home/acme/git/perf/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
                 make_perf_o_O: make perf.o
            make_no_auxtrace_O: make NO_AUXTRACE=1
                make_no_newt_O: make NO_NEWT=1
              make_no_libbpf_O: make NO_LIBBPF=1
         make_with_clangllvm_O: make LIBCLANGLLVM=1
                make_install_O: make install
               make_no_slang_O: make NO_SLANG=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
           make_no_libunwind_O: make NO_LIBUNWIND=1
             make_util_map_o_O: make util/map.o
                  make_debug_O: make DEBUG=1
                 make_static_O: make LDFLAGS=-static
        make_with_babeltrace_O: make LIBBABELTRACE=1
            make_install_bin_O: make install-bin
            make_no_demangle_O: make NO_DEMANGLE=1
                    make_doc_O: make doc
         make_install_prefix_O: make install prefix=/tmp/krava
                   make_help_O: make help
            make_no_libaudit_O: make NO_LIBAUDIT=1
           make_no_libbionic_O: make NO_LIBBIONIC=1
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
             make_no_libperl_O: make NO_LIBPERL=1
              make_clean_all_O: make clean all
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
           make_no_libpython_O: make NO_LIBPYTHON=1
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
             make_no_libnuma_O: make NO_LIBNUMA=1
                   make_tags_O: make tags
                   make_pure_O: make
                make_no_gtk2_O: make NO_GTK2=1
              make_no_libelf_O: make NO_LIBELF=1
           make_no_backtrace_O: make NO_BACKTRACE=1
                make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
  OK
  make: Leaving directory '/home/acme/git/perf/tools/perf'
  $

[GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Besides these 21 patches there are 65 other patches, all present in the
perf-core-for-mingo tag, that I sent a pull request for but had some issues
building on older distros (got reports and fixes for OL6, CentOS6, tested it
all on RHEL6), minor stuff, all noted on the comments just before my
Signed-off-by lines.

	Please consider pulling,

- Arnaldo

The following changes since commit b64aa553d8430aabd24f303899cfa4de678e2c3a:

  perf bench numa: Show more stats of particular threads in verbose mode (2015-05-04 12:43:41 -0300)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-2

for you to fetch changes up to 0c160d495b5616e071bb4f873812e8f473128149:

  perf kmem: Add kmem.default config option (2015-05-04 13:34:48 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- perf kmem improvements: (Namhyung Kim)

  - Support sort keys on page analysis
  - New --live option
  - Humand readable gfp flags
  - Allow setting the default in perfconfig files

- perf probe --filter improvements (Masami Hiramatsu)

- Improve detection of file/function name in the 'perf probe' pattern (Naveen Rao)

Infrastructure:

- Some more Intel PT prep patches (Adrian Hunter)

- Fix ppc64 ABIv2 symbol decoding (Ananth N Mavinakayanahalli)

Build fixes:

- bison-related build failure on CentOS 6 (Namhyung Kim)

- perf probe fixes for better support powerpc (Naveen Rao)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Adrian Hunter (3):
      perf evlist: Amend mmap ref counting for the AUX area mmap
      perf script: Always allow fields 'addr' and 'cpu' for auxtrace
      perf report: Add Instruction Tracing support

Ananth N Mavinakayanahalli (1):
      perf probe ppc64le: Fix ppc64 ABIv2 symbol decoding

Masami Hiramatsu (4):
      perf tools: Improve strfilter to append additional rules
      perf tools: Add strfilter__string to recover rules string
      perf probe: Accept multiple filter options
      perf probe: Accept filter argument for --list

Namhyung Kim (6):
      perf tools: Fix bison-related build failure on CentOS 6
      perf kmem: Implement stat --page --caller
      perf kmem: Support sort keys on page analysis
      perf kmem: Add --live option for current allocation stat
      perf kmem: Print gfp flags in human readable string
      perf kmem: Add kmem.default config option

Naveen N. Rao (7):
      perf probe ppc: Fix symbol fixup issues due to ELF type
      perf probe ppc: Use the right prefix when ignoring SyS symbols on ppc
      perf probe ppc: Enable matching against dot symbols automatically
      perf probe ppc64le: Prefer symbol table lookup over DWARF
      perf probe ppc64le: Fixup function entry if using kallsyms lookup
      perf symbols: Warn on build id mismatch
      perf probe: Improve detection of file/function name in the probe pattern

 tools/perf/Documentation/perf-kmem.txt      |  11 +-
 tools/perf/Documentation/perf-probe.txt     |   6 +-
 tools/perf/Documentation/perf-report.txt    |  27 +
 tools/perf/arch/powerpc/util/Build          |   1 +
 tools/perf/arch/powerpc/util/sym-handling.c |  82 +++
 tools/perf/builtin-kmem.c                   | 964 +++++++++++++++++++++++++---
 tools/perf/builtin-probe.c                  |  64 +-
 tools/perf/builtin-report.c                 |  11 +
 tools/perf/builtin-script.c                 |  29 +-
 tools/perf/util/Build                       |   2 +-
 tools/perf/util/evlist.c                    |   2 +-
 tools/perf/util/map.c                       |   5 +
 tools/perf/util/map.h                       |   3 +-
 tools/perf/util/probe-event.c               |  69 +-
 tools/perf/util/probe-event.h               |   5 +-
 tools/perf/util/strfilter.c                 | 107 +++
 tools/perf/util/strfilter.h                 |  35 +
 tools/perf/util/symbol-elf.c                |  13 +-
 tools/perf/util/symbol.c                    |  25 +-
 tools/perf/util/symbol.h                    |  10 +
 20 files changed, 1313 insertions(+), 158 deletions(-)
 create mode 100644 tools/perf/arch/powerpc/util/sym-handling.c

[GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 2fde4f94e0a9531251e706fa57131b51b0df042e:

  perf: Decouple unthrottling and rotating (2015-02-04 08:07:16 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo

for you to fetch changes up to 39f5704399042fff5f0d5f6af32bbbc3e787a897:

  perf tools: Define _GNU_SOURCE on pthread_attr_setaffinity_np feature check (2015-02-11 17:38:55 -0300)

----------------------------------------------------------------
perf/core improvement and fixes:

User visible:

- No need to explicitely enable evsels for workload started from perf, let it
  be enabled via perf_event_attr.enable_on_exec, removing some events that take
  place in the 'perf trace' before a workload is really started by it.
  (Arnaldo Carvalho de Melo)

- Fix to handle optimized not-inlined functions in 'perf probe' (Masami Hiramatsu)

- Update 'perf probe' man page (Masami Hiramatsu)

Infrastructure:

Arnaldo Carvalho de Melo (4):
- Introduce {trace_seq_do,event_format_}_fprintf functions to allow
  a default tracepoint field list printer to be used in tools that allows
  redirecting output to a file. (Arnaldo Carvalho de Melo)

- The man page for pthread_attr_set_affinity_np states that _GNU_SOURCE
  must be defined before pthread.h, do it to fix the build in some
  systems (Josh Boyer)

- Cleanups in 'perf buildid-cache' (Masami Hiramatsu)

- Fix dso cache test case (Namhyung Kim)

- Do Not rely on dso__data_read_offset() to open DSO (Namhyung Kim)

- Make perf aware of tracefs (Steven Rostedt).

- Fix build by defining STT_GNU_IFUNC for glibc 2.9 and older (Vinson Lee)

- AArch64 symbol resolution fixes (Victor Kamensky)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (4):
      tools lib traceevent: Introduce trace_seq_do_fprintf function
      perf tools: Introduce event_format__fprintf method
      perf trace: No need to enable evsels for workload started from perf
      perf evlist: Fix typo in comment

Josh Boyer (1):
      perf tools: Define _GNU_SOURCE on pthread_attr_setaffinity_np feature check

Masami Hiramatsu (4):
      perf probe: Fix to handle optimized not-inlined functions
      perf probe: Update man page
      perf buildid-cache: Remove unneeded debugdir parameters
      perf buildid-cache: Consolidate .build-id cache path generators

Namhyung Kim (3):
      perf test: Fix dso cache testcase
      perf tests: Do not rely on dso__data_read_offset() to open dso
      perf tools: Fix a dso open fail message

Steven Rostedt (Red Hat) (6):
      perf tools: Do not check debugfs MAGIC for tracing files
      tools lib fs: Add helper to find mounted file systems
      tools lib api fs: Add tracefs mount helper functions
      tools lib api debugfs: Add DEBUGFS_DEFAULT_PATH macro
      tools lib api fs: Add {tracefs,debugfs}_configured() functions
      perf tools: Make perf aware of tracefs

Victor Kamensky (2):
      perf symbols: Ignore mapping symbols on aarch64
      perf symbols: debuglink should take symfs option into account

Vinson Lee (1):
      perf symbols: Define STT_GNU_IFUNC for glibc 2.9 and older.

 tools/lib/api/Makefile                    |  4 ++
 tools/lib/api/fs/debugfs.c                | 69 +++++++---------------
 tools/lib/api/fs/debugfs.h                | 13 +----
 tools/lib/api/fs/findfs.c                 | 63 ++++++++++++++++++++
 tools/lib/api/fs/findfs.h                 | 23 ++++++++
 tools/lib/api/fs/tracefs.c                | 78 +++++++++++++++++++++++++
 tools/lib/api/fs/tracefs.h                | 21 +++++++
 tools/lib/traceevent/event-parse.h        |  2 +
 tools/lib/traceevent/trace-seq.c          | 13 +++--
 tools/perf/Documentation/perf-probe.txt   | 16 +++++-
 tools/perf/builtin-buildid-cache.c        | 37 ++++++------
 tools/perf/builtin-trace.c                |  4 +-
 tools/perf/config/feature-checks/Makefile |  2 +-
 tools/perf/tests/dso-data.c               | 22 ++++---
 tools/perf/tests/open-syscall-all-cpus.c  |  7 ++-
 tools/perf/tests/open-syscall.c           |  7 ++-
 tools/perf/tests/parse-events.c           | 13 ++++-
 tools/perf/util/build-id.c                | 96 +++++++++++++++++++------------
 tools/perf/util/build-id.h                |  4 +-
 tools/perf/util/cache.h                   |  1 +
 tools/perf/util/dso.c                     |  8 +--
 tools/perf/util/dwarf-aux.c               | 15 +++++
 tools/perf/util/dwarf-aux.h               |  3 +
 tools/perf/util/evlist.c                  |  3 +-
 tools/perf/util/parse-events.c            | 19 ------
 tools/perf/util/parse-events.h            |  2 +-
 tools/perf/util/probe-event.c             | 24 +++++---
 tools/perf/util/probe-finder.c            | 12 ++--
 tools/perf/util/symbol-elf.c              | 11 ++--
 tools/perf/util/trace-event-parse.c       | 12 +++-
 tools/perf/util/trace-event.h             |  3 +
 tools/perf/util/util.c                    | 60 +++++++++++++++----
 tools/perf/util/util.h                    |  1 +
 33 files changed, 468 insertions(+), 200 deletions(-)
 create mode 100644 tools/lib/api/fs/findfs.c
 create mode 100644 tools/lib/api/fs/findfs.h
 create mode 100644 tools/lib/api/fs/tracefs.c
 create mode 100644 tools/lib/api/fs/tracefs.h

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Victor Kamensky]

Hi Arnaldo, Ingo,

What happened with this pull request? I already
see in v4.0-rc2 changes additions to one requested
by this pull request, but I don't see this series itself.

For example e370a3d57664cd5e39c0b95d157ebc841b568409
"perf symbols: Define EM_AARCH64 for older OSes" by David
is already in v4.0-rc2 and it is supposed to be addition to
"perf symbols: Ignore mapping symbols on aarch64" that is part
of this pull request but it did not make into v4.0-rcX yet. Looks
quite strange.

Thanks,
Victor

On 11 February 2015 at 13:08, Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> Hi Ingo,
>
>         Please consider pulling,
>
> - Arnaldo
>
> The following changes since commit 2fde4f94e0a9531251e706fa57131b51b0df042e:
>
>   perf: Decouple unthrottling and rotating (2015-02-04 08:07:16 +0100)
>
> are available in the git repository at:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo
>
> for you to fetch changes up to 39f5704399042fff5f0d5f6af32bbbc3e787a897:
>
>   perf tools: Define _GNU_SOURCE on pthread_attr_setaffinity_np feature check (2015-02-11 17:38:55 -0300)
>
> ----------------------------------------------------------------
> perf/core improvement and fixes:
>
> User visible:
>
> - No need to explicitely enable evsels for workload started from perf, let it
>   be enabled via perf_event_attr.enable_on_exec, removing some events that take
>   place in the 'perf trace' before a workload is really started by it.
>   (Arnaldo Carvalho de Melo)
>
> - Fix to handle optimized not-inlined functions in 'perf probe' (Masami Hiramatsu)
>
> - Update 'perf probe' man page (Masami Hiramatsu)
>
> Infrastructure:
>
> Arnaldo Carvalho de Melo (4):
> - Introduce {trace_seq_do,event_format_}_fprintf functions to allow
>   a default tracepoint field list printer to be used in tools that allows
>   redirecting output to a file. (Arnaldo Carvalho de Melo)
>
> - The man page for pthread_attr_set_affinity_np states that _GNU_SOURCE
>   must be defined before pthread.h, do it to fix the build in some
>   systems (Josh Boyer)
>
> - Cleanups in 'perf buildid-cache' (Masami Hiramatsu)
>
> - Fix dso cache test case (Namhyung Kim)
>
> - Do Not rely on dso__data_read_offset() to open DSO (Namhyung Kim)
>
> - Make perf aware of tracefs (Steven Rostedt).
>
> - Fix build by defining STT_GNU_IFUNC for glibc 2.9 and older (Vinson Lee)
>
> - AArch64 symbol resolution fixes (Victor Kamensky)
>
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
>
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (4):
>       tools lib traceevent: Introduce trace_seq_do_fprintf function
>       perf tools: Introduce event_format__fprintf method
>       perf trace: No need to enable evsels for workload started from perf
>       perf evlist: Fix typo in comment
>
> Josh Boyer (1):
>       perf tools: Define _GNU_SOURCE on pthread_attr_setaffinity_np feature check
>
> Masami Hiramatsu (4):
>       perf probe: Fix to handle optimized not-inlined functions
>       perf probe: Update man page
>       perf buildid-cache: Remove unneeded debugdir parameters
>       perf buildid-cache: Consolidate .build-id cache path generators
>
> Namhyung Kim (3):
>       perf test: Fix dso cache testcase
>       perf tests: Do not rely on dso__data_read_offset() to open dso
>       perf tools: Fix a dso open fail message
>
> Steven Rostedt (Red Hat) (6):
>       perf tools: Do not check debugfs MAGIC for tracing files
>       tools lib fs: Add helper to find mounted file systems
>       tools lib api fs: Add tracefs mount helper functions
>       tools lib api debugfs: Add DEBUGFS_DEFAULT_PATH macro
>       tools lib api fs: Add {tracefs,debugfs}_configured() functions
>       perf tools: Make perf aware of tracefs
>
> Victor Kamensky (2):
>       perf symbols: Ignore mapping symbols on aarch64
>       perf symbols: debuglink should take symfs option into account
>
> Vinson Lee (1):
>       perf symbols: Define STT_GNU_IFUNC for glibc 2.9 and older.
>
>  tools/lib/api/Makefile                    |  4 ++
>  tools/lib/api/fs/debugfs.c                | 69 +++++++---------------
>  tools/lib/api/fs/debugfs.h                | 13 +----
>  tools/lib/api/fs/findfs.c                 | 63 ++++++++++++++++++++
>  tools/lib/api/fs/findfs.h                 | 23 ++++++++
>  tools/lib/api/fs/tracefs.c                | 78 +++++++++++++++++++++++++
>  tools/lib/api/fs/tracefs.h                | 21 +++++++
>  tools/lib/traceevent/event-parse.h        |  2 +
>  tools/lib/traceevent/trace-seq.c          | 13 +++--
>  tools/perf/Documentation/perf-probe.txt   | 16 +++++-
>  tools/perf/builtin-buildid-cache.c        | 37 ++++++------
>  tools/perf/builtin-trace.c                |  4 +-
>  tools/perf/config/feature-checks/Makefile |  2 +-
>  tools/perf/tests/dso-data.c               | 22 ++++---
>  tools/perf/tests/open-syscall-all-cpus.c  |  7 ++-
>  tools/perf/tests/open-syscall.c           |  7 ++-
>  tools/perf/tests/parse-events.c           | 13 ++++-
>  tools/perf/util/build-id.c                | 96 +++++++++++++++++++------------
>  tools/perf/util/build-id.h                |  4 +-
>  tools/perf/util/cache.h                   |  1 +
>  tools/perf/util/dso.c                     |  8 +--
>  tools/perf/util/dwarf-aux.c               | 15 +++++
>  tools/perf/util/dwarf-aux.h               |  3 +
>  tools/perf/util/evlist.c                  |  3 +-
>  tools/perf/util/parse-events.c            | 19 ------
>  tools/perf/util/parse-events.h            |  2 +-
>  tools/perf/util/probe-event.c             | 24 +++++---
>  tools/perf/util/probe-finder.c            | 12 ++--
>  tools/perf/util/symbol-elf.c              | 11 ++--
>  tools/perf/util/trace-event-parse.c       | 12 +++-
>  tools/perf/util/trace-event.h             |  3 +
>  tools/perf/util/util.c                    | 60 +++++++++++++++----
>  tools/perf/util/util.h                    |  1 +
>  33 files changed, 468 insertions(+), 200 deletions(-)
>  create mode 100644 tools/lib/api/fs/findfs.c
>  create mode 100644 tools/lib/api/fs/findfs.h
>  create mode 100644 tools/lib/api/fs/tracefs.c
>  create mode 100644 tools/lib/api/fs/tracefs.h

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Ingo Molnar]

* Victor Kamensky <victor.kamensky@linaro.org> wrote:

> Hi Arnaldo, Ingo,
> 
> What happened with this pull request? [...]

This pull request was for v4.1, and I merged it in:

commit 8a26ce4e544659256349551283414df504889a59
Merge: acba3c7e4652 726f3234dd12
Author: Ingo Molnar <mingo@kernel.org>
Date:   Wed Feb 18 19:14:54 2015 +0100

    Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
    
    Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
    
    User visible changes:

> [...] I already see in v4.0-rc2 changes additions to one requested 
> by this pull request, but I don't see this series itself.
> 
> For example e370a3d57664cd5e39c0b95d157ebc841b568409
> "perf symbols: Define EM_AARCH64 for older OSes" by David
> is already in v4.0-rc2 and it is supposed to be addition to
> "perf symbols: Ignore mapping symbols on aarch64" that is part
> of this pull request but it did not make into v4.0-rcX yet. Looks
> quite strange.

If some commits of the v4.1 queue are needed in v4.0 as well then they 
should be cherry-picked back into the urgent queue.

But maybe e370a3d57 was merged prematurely - in that case it appears 
to be harmless and v4.1 will sort it out.

Arnaldo?

Thanks,

	Ingo

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Victor Kamensky]

On 4 March 2015 at 22:37, Ingo Molnar <mingo@kernel.org> wrote:
>
> * Victor Kamensky <victor.kamensky@linaro.org> wrote:
>
>> Hi Arnaldo, Ingo,
>>
>> What happened with this pull request? [...]
>
> This pull request was for v4.1, and I merged it in:

Ok, I got it. Sorry I missed that before.

> commit 8a26ce4e544659256349551283414df504889a59
> Merge: acba3c7e4652 726f3234dd12
> Author: Ingo Molnar <mingo@kernel.org>
> Date:   Wed Feb 18 19:14:54 2015 +0100
>
>     Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
>
>     Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
>
>     User visible changes:
>
>> [...] I already see in v4.0-rc2 changes additions to one requested
>> by this pull request, but I don't see this series itself.
>>
>> For example e370a3d57664cd5e39c0b95d157ebc841b568409
>> "perf symbols: Define EM_AARCH64 for older OSes" by David
>> is already in v4.0-rc2 and it is supposed to be addition to
>> "perf symbols: Ignore mapping symbols on aarch64" that is part
>> of this pull request but it did not make into v4.0-rcX yet. Looks
>> quite strange.
>
> If some commits of the v4.1 queue are needed in v4.0 as well then they
> should be cherry-picked back into the urgent queue.
>
> But maybe e370a3d57 was merged prematurely - in that case it appears
> to be harmless and v4.1 will sort it out.

Yes, this merge is harmless. Indeed it should be OK with v4.1.

Thanks for explanation.

- Victor

> Arnaldo?
>
> Thanks,
>
>         Ingo

[GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>

Hi Ingo,

	Please consider pulling, another batch, more to come soon,

- Arnaldo

The following changes since commit 5ec4c599a52362896c3e7c6a31ba6145dca9c6f5:

  perf: Do not compute time values unnecessarily (2013-08-16 17:55:52 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo

for you to fetch changes up to 456da532a5fb04f8a79622df7dd49e84e04f31a8:

  tools lib traceevent: Fixup jobserver setup (2013-08-27 11:05:55 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

. Don't install scripting files files when perl/python support is disabled.

. Support ! in -e expressions in 'perf trace', to filter a list of syscalls.

. Add --verbose and -o/--output options to 'perf trace'.

. Introduce better formatting of syscall arguments in 'perf trace',
  including so far beautifiers for mmap, madvise, syscall return
  values.

. Fixup jobserver setup in libtraceevent makefile.

. Debug improvements from Adrian Hunter.

. Try to increase the file descriptor limits on EMFILE, from Andi Kleen.

. Remove unused force option in 'perf kvm', from David Ahern.

. Make 'perf trace' command line arguments consistent with 'perf record',
  from David Ahern.

. Fix correlation of samples coming after PERF_RECORD_EXIT event, from
  David Ahern.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Adrian Hunter (3):
      perf tools: Re-implement debug print function for linking python/perf.so
      perf tools: Add debug prints
      perf tools: Add pid to struct thread

Andi Kleen (1):
      perf tools: Try to increase the file descriptor limits on EMFILE

Arnaldo Carvalho de Melo (14):
      perf trace: Implement -o/--output filename
      perf tools: Don't install scripting files files when disabled
      perf trace: Support ! in -e expressions
      perf trace: Add --verbose option
      perf trace: Hide sys_exit messages about syscall id = -1
      perf trace: Introduce syscall arg formatters
      perf trace: Simplify sys_exit return printing
      perf trace: Allow printing syscall return values in hex
      perf trace: Add aliases to remaining syscalls of the sys_enter_newfoo
      perf trace: Allow overiding the formatting of syscall fields
      perf trace: Add beautifier for mmap prot parm
      perf trace: Add beautifier for mmap flags parm
      perf trace: Add beautifier for madvise behaviour/advice parm
      tools lib traceevent: Fixup jobserver setup

David Ahern (3):
      perf kvm: Remove force option to cmd_record
      perf trace: Make command line arguments consistent with perf-record
      perf tools: Sample after exit loses thread correlation

 tools/lib/traceevent/Makefile           |   2 +-
 tools/perf/Documentation/perf-trace.txt |  16 ++
 tools/perf/Makefile                     |   6 +-
 tools/perf/builtin-kvm.c                |   1 -
 tools/perf/builtin-trace.c              | 379 ++++++++++++++++++++++++++------
 tools/perf/util/evlist.c                |   3 +
 tools/perf/util/evsel.c                 |  93 ++++++++
 tools/perf/util/machine.c               |  50 +++--
 tools/perf/util/python.c                |  20 ++
 tools/perf/util/thread.c                |   3 +-
 tools/perf/util/thread.h                |   8 +-
 11 files changed, 488 insertions(+), 93 deletions(-)

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@infradead.org> wrote:

> From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
> 
> Hi Ingo,
> 
> 	Please consider pulling, another batch, more to come soon,
> 
> - Arnaldo
> 
> The following changes since commit 5ec4c599a52362896c3e7c6a31ba6145dca9c6f5:
> 
>   perf: Do not compute time values unnecessarily (2013-08-16 17:55:52 +0200)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo
> 
> for you to fetch changes up to 456da532a5fb04f8a79622df7dd49e84e04f31a8:
> 
>   tools lib traceevent: Fixup jobserver setup (2013-08-27 11:05:55 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> . Don't install scripting files files when perl/python support is disabled.
> 
> . Support ! in -e expressions in 'perf trace', to filter a list of syscalls.
> 
> . Add --verbose and -o/--output options to 'perf trace'.
> 
> . Introduce better formatting of syscall arguments in 'perf trace',
>   including so far beautifiers for mmap, madvise, syscall return
>   values.
> 
> . Fixup jobserver setup in libtraceevent makefile.
> 
> . Debug improvements from Adrian Hunter.
> 
> . Try to increase the file descriptor limits on EMFILE, from Andi Kleen.
> 
> . Remove unused force option in 'perf kvm', from David Ahern.
> 
> . Make 'perf trace' command line arguments consistent with 'perf record',
>   from David Ahern.
> 
> . Fix correlation of samples coming after PERF_RECORD_EXIT event, from
>   David Ahern.
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Adrian Hunter (3):
>       perf tools: Re-implement debug print function for linking python/perf.so
>       perf tools: Add debug prints
>       perf tools: Add pid to struct thread
> 
> Andi Kleen (1):
>       perf tools: Try to increase the file descriptor limits on EMFILE
> 
> Arnaldo Carvalho de Melo (14):
>       perf trace: Implement -o/--output filename
>       perf tools: Don't install scripting files files when disabled
>       perf trace: Support ! in -e expressions
>       perf trace: Add --verbose option
>       perf trace: Hide sys_exit messages about syscall id = -1
>       perf trace: Introduce syscall arg formatters
>       perf trace: Simplify sys_exit return printing
>       perf trace: Allow printing syscall return values in hex
>       perf trace: Add aliases to remaining syscalls of the sys_enter_newfoo
>       perf trace: Allow overiding the formatting of syscall fields
>       perf trace: Add beautifier for mmap prot parm
>       perf trace: Add beautifier for mmap flags parm
>       perf trace: Add beautifier for madvise behaviour/advice parm
>       tools lib traceevent: Fixup jobserver setup
> 
> David Ahern (3):
>       perf kvm: Remove force option to cmd_record
>       perf trace: Make command line arguments consistent with perf-record
>       perf tools: Sample after exit loses thread correlation
> 
>  tools/lib/traceevent/Makefile           |   2 +-
>  tools/perf/Documentation/perf-trace.txt |  16 ++
>  tools/perf/Makefile                     |   6 +-
>  tools/perf/builtin-kvm.c                |   1 -
>  tools/perf/builtin-trace.c              | 379 ++++++++++++++++++++++++++------
>  tools/perf/util/evlist.c                |   3 +
>  tools/perf/util/evsel.c                 |  93 ++++++++
>  tools/perf/util/machine.c               |  50 +++--
>  tools/perf/util/python.c                |  20 ++
>  tools/perf/util/thread.c                |   3 +-
>  tools/perf/util/thread.h                |   8 +-
>  11 files changed, 488 insertions(+), 93 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>

Hi Ingo,

	Please consider pulling,

	Flushing it out now before processing another batch.

- Arnaldo

The following changes since commit 0a3d23a2568ed5e73bd4fb532dc672fa9f03b1f1:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2013-08-12 10:14:47 +0200)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo

for you to fetch changes up to 2ae3a312c0ccd8ff615372f00aab1700aac27474:

  perf trace: Allow specifying which syscalls to trace (2013-08-14 11:44:21 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

. Allow specifying syscalls in 'perf trace', a la strace.

. Simplify symbol filtering by doing it at machine class level,
  from Adrian Hunter.

. Add option to 'perf kvm' to print only events that exceed a specified time
  duration, from David Ahern.

. 'perf sched' improvements, including removing some tracepoints that provide
  the same information as the PERF_RECORD_{FORK,EXIT} events.

. Improve stack trace printing, from David Ahern.

. Update documentation with live command, from David Ahern

. Fix 'perf test' compile failure on do_sort_something, from David Ahern.

. Improve robustness of topology parsing code, from Stephane Eranian.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Adrian Hunter (8):
      perf machine: Add symbol filter to struct machine
      perf top: Set the machines symbol filter
      perf report: Set the machines symbol filter
      perf mem: Remove unused symbol filter member
      perf annotate: Set the machines symbol filter
      perf tools: Remove filter parameter of perf_event__preprocess_sample()
      perf tools: Remove filter parameter of thread__find_addr_location()
      perf tools: Remove filter parameter of thread__find_addr_map()

Arnaldo Carvalho de Melo (1):
      perf trace: Allow specifying which syscalls to trace

David Ahern (11):
      perf kvm: Option to print events that exceed a duration
      perf kvm: Update documentation with live command
      perf sched: Simplify arguments to read_events
      perf sched: Remove thread lookup in sample handler
      perf sched: Remove sched_process_exit tracepoint
      perf sched: Remove sched_process_fork tracepoint
      perf tool: Simplify options to perf_evsel__print_ip
      perf evsel: Add option to print stack trace on single line
      perf evsel: Add option to limit stack depth in callchain dumps
      perf session: Change perf_session__has_traces to actually check for tracepoints
      perf tests: Fix compile failure on do_sort_something

Stephane Eranian (1):
      perf tools: Improve robustness of topology parsing code

 tools/perf/Documentation/perf-kvm.txt   | 46 +++++++++++++++-
 tools/perf/Documentation/perf-trace.txt |  4 ++
 tools/perf/builtin-annotate.c           |  5 +-
 tools/perf/builtin-diff.c               |  2 +-
 tools/perf/builtin-inject.c             |  2 +-
 tools/perf/builtin-kvm.c                | 25 +++++++--
 tools/perf/builtin-mem.c                |  4 +-
 tools/perf/builtin-report.c             |  7 ++-
 tools/perf/builtin-sched.c              | 94 ++++++++++++++-------------------
 tools/perf/builtin-script.c             | 35 +++++++++---
 tools/perf/builtin-top.c                |  5 +-
 tools/perf/builtin-trace.c              | 52 +++++++++++++++---
 tools/perf/perf.h                       |  3 ++
 tools/perf/tests/code-reading.c         | 13 +++--
 tools/perf/tests/hists_link.c           |  4 +-
 tools/perf/util/build-id.c              |  2 +-
 tools/perf/util/event.c                 | 20 +++----
 tools/perf/util/event.h                 |  3 +-
 tools/perf/util/header.c                | 11 ++--
 tools/perf/util/machine.c               | 28 ++++++++--
 tools/perf/util/machine.h               |  5 ++
 tools/perf/util/session.c               | 40 +++++++++-----
 tools/perf/util/session.h               |  8 ++-
 tools/perf/util/thread.h                |  5 +-
 tools/perf/util/unwind.c                |  6 +--
 25 files changed, 294 insertions(+), 135 deletions(-)

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@infradead.org> wrote:

> From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
> 
> Hi Ingo,
> 
> 	Please consider pulling,
> 
> 	Flushing it out now before processing another batch.
> 
> - Arnaldo
> 
> The following changes since commit 0a3d23a2568ed5e73bd4fb532dc672fa9f03b1f1:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2013-08-12 10:14:47 +0200)
> 
> are available in the git repository at:
> 
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo
> 
> for you to fetch changes up to 2ae3a312c0ccd8ff615372f00aab1700aac27474:
> 
>   perf trace: Allow specifying which syscalls to trace (2013-08-14 11:44:21 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> . Allow specifying syscalls in 'perf trace', a la strace.
> 
> . Simplify symbol filtering by doing it at machine class level,
>   from Adrian Hunter.
> 
> . Add option to 'perf kvm' to print only events that exceed a specified time
>   duration, from David Ahern.
> 
> . 'perf sched' improvements, including removing some tracepoints that provide
>   the same information as the PERF_RECORD_{FORK,EXIT} events.
> 
> . Improve stack trace printing, from David Ahern.
> 
> . Update documentation with live command, from David Ahern
> 
> . Fix 'perf test' compile failure on do_sort_something, from David Ahern.
> 
> . Improve robustness of topology parsing code, from Stephane Eranian.
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Adrian Hunter (8):
>       perf machine: Add symbol filter to struct machine
>       perf top: Set the machines symbol filter
>       perf report: Set the machines symbol filter
>       perf mem: Remove unused symbol filter member
>       perf annotate: Set the machines symbol filter
>       perf tools: Remove filter parameter of perf_event__preprocess_sample()
>       perf tools: Remove filter parameter of thread__find_addr_location()
>       perf tools: Remove filter parameter of thread__find_addr_map()
> 
> Arnaldo Carvalho de Melo (1):
>       perf trace: Allow specifying which syscalls to trace
> 
> David Ahern (11):
>       perf kvm: Option to print events that exceed a duration
>       perf kvm: Update documentation with live command
>       perf sched: Simplify arguments to read_events
>       perf sched: Remove thread lookup in sample handler
>       perf sched: Remove sched_process_exit tracepoint
>       perf sched: Remove sched_process_fork tracepoint
>       perf tool: Simplify options to perf_evsel__print_ip
>       perf evsel: Add option to print stack trace on single line
>       perf evsel: Add option to limit stack depth in callchain dumps
>       perf session: Change perf_session__has_traces to actually check for tracepoints
>       perf tests: Fix compile failure on do_sort_something
> 
> Stephane Eranian (1):
>       perf tools: Improve robustness of topology parsing code
> 
>  tools/perf/Documentation/perf-kvm.txt   | 46 +++++++++++++++-
>  tools/perf/Documentation/perf-trace.txt |  4 ++
>  tools/perf/builtin-annotate.c           |  5 +-
>  tools/perf/builtin-diff.c               |  2 +-
>  tools/perf/builtin-inject.c             |  2 +-
>  tools/perf/builtin-kvm.c                | 25 +++++++--
>  tools/perf/builtin-mem.c                |  4 +-
>  tools/perf/builtin-report.c             |  7 ++-
>  tools/perf/builtin-sched.c              | 94 ++++++++++++++-------------------
>  tools/perf/builtin-script.c             | 35 +++++++++---
>  tools/perf/builtin-top.c                |  5 +-
>  tools/perf/builtin-trace.c              | 52 +++++++++++++++---
>  tools/perf/perf.h                       |  3 ++
>  tools/perf/tests/code-reading.c         | 13 +++--
>  tools/perf/tests/hists_link.c           |  4 +-
>  tools/perf/util/build-id.c              |  2 +-
>  tools/perf/util/event.c                 | 20 +++----
>  tools/perf/util/event.h                 |  3 +-
>  tools/perf/util/header.c                | 11 ++--
>  tools/perf/util/machine.c               | 28 ++++++++--
>  tools/perf/util/machine.h               |  5 ++
>  tools/perf/util/session.c               | 40 +++++++++-----
>  tools/perf/util/session.h               |  8 ++-
>  tools/perf/util/thread.h                |  5 +-
>  tools/perf/util/unwind.c                |  6 +--
>  25 files changed, 294 insertions(+), 135 deletions(-)

Pulled, thanks Arnaldo!

	Ingo

[GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling.

	Namhyung, Jiri, the 'group report' patches are at acme/perf/group,
will send a pull req later if it survives further testing.

- Arnaldo

The following changes since commit a2d28d0c198b65fac28ea6212f5f8edc77b29c27:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2013-01-25 11:34:00 +0100)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo

for you to fetch changes up to 5809fde040de2afa477a6c593ce2e8fd2c11d9d3:

  perf header: Fix double fclose() on do_write(fd, xxx) failure (2013-01-30 10:40:44 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

. Fix some leaks in exit paths.

. Use memdup where applicable

. Remove some die() calls, allowing callers to handle exit paths
  gracefully.

. Correct typo in tools Makefile, fix from Borislav Petkov.

. Add 'perf bench numa mem' NUMA performance measurement suite, from Ingo Molnar.

. Handle dynamic array's element size properly, fix from Jiri Olsa.

. Fix memory leaks on evsel->counts, from Namhyung Kim.

. Make numa benchmark optional, allowing the build in machines where required
  numa libraries are not present, fix from Peter Hurley.

. Add interval printing in 'perf stat', from Stephane Eranian.

. Fix compile warnings in tests/attr.c, from Sukadev Bhattiprolu.

. Fix double free, pclose instead of fclose, leaks and double fclose errors
  found with the cppcheck tool, from Thomas Jarosch.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (8):
      perf tools: Stop using 'self' in strlist
      perf tools: Stop using 'self' in map.[ch]
      perf tools: Use memdup in map__clone
      perf kmem: Use memdup()
      perf header: Stop using die() calls when processing tracing data
      perf ui browser: Free browser->helpline() on ui_browser__hide()
      perf tests: Call machine__exit in the vmlinux matches kallsyms test
      perf tests: Fix leaks on PERF_RECORD_* test

Borislav Petkov (1):
      tools: Correct typo in tools Makefile

Ingo Molnar (1):
      perf: Add 'perf bench numa mem' NUMA performance measurement suite

Jiri Olsa (1):
      tools lib traceevent: Handle dynamic array's element size properly

Namhyung Kim (1):
      perf evsel: Fix memory leaks on evsel->counts

Peter Hurley (1):
      perf tools: Make numa benchmark optional

Stephane Eranian (2):
      perf evsel: Add prev_raw_count field
      perf stat: Add interval printing

Sukadev Bhattiprolu (1):
      perf tools, powerpc: Fix compile warnings in tests/attr.c

Thomas Jarosch (5):
      perf tools: Fix possible double free on error
      perf sort: Use pclose() instead of fclose() on pipe stream
      perf tools: Fix memory leak on error
      perf header: Fix memory leak for the "Not caching a kptr_restrict'ed /proc/kallsyms" case
      perf header: Fix double fclose() on do_write(fd, xxx) failure

 tools/Makefile                           |    2 +-
 tools/lib/traceevent/event-parse.c       |   39 +-
 tools/perf/Documentation/perf-stat.txt   |    4 +
 tools/perf/Makefile                      |   13 +
 tools/perf/arch/common.c                 |    1 +
 tools/perf/bench/bench.h                 |    1 +
 tools/perf/bench/numa.c                  | 1731 ++++++++++++++++++++++++++++++
 tools/perf/builtin-bench.c               |   17 +
 tools/perf/builtin-kmem.c                |    6 +-
 tools/perf/builtin-stat.c                |  158 ++-
 tools/perf/config/feature-tests.mak      |   11 +
 tools/perf/tests/attr.c                  |    5 +
 tools/perf/tests/open-syscall-all-cpus.c |    1 +
 tools/perf/tests/perf-record.c           |   12 +-
 tools/perf/tests/vmlinux-kallsyms.c      |    4 +-
 tools/perf/ui/browser.c                  |    2 +
 tools/perf/util/event.c                  |    4 +-
 tools/perf/util/evsel.c                  |   31 +
 tools/perf/util/evsel.h                  |    2 +
 tools/perf/util/header.c                 |   25 +-
 tools/perf/util/map.c                    |  118 +-
 tools/perf/util/map.h                    |   24 +-
 tools/perf/util/sort.c                   |    7 +-
 tools/perf/util/strlist.c                |   54 +-
 tools/perf/util/strlist.h                |   42 +-
 25 files changed, 2154 insertions(+), 160 deletions(-)
 create mode 100644 tools/perf/bench/numa.c

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@infradead.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling.
> 
> 	Namhyung, Jiri, the 'group report' patches are at acme/perf/group,
> will send a pull req later if it survives further testing.
> 
> - Arnaldo
> 
> The following changes since commit a2d28d0c198b65fac28ea6212f5f8edc77b29c27:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2013-01-25 11:34:00 +0100)
> 
> are available in the git repository at:
> 
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo
> 
> for you to fetch changes up to 5809fde040de2afa477a6c593ce2e8fd2c11d9d3:
> 
>   perf header: Fix double fclose() on do_write(fd, xxx) failure (2013-01-30 10:40:44 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> . Fix some leaks in exit paths.
> 
> . Use memdup where applicable
> 
> . Remove some die() calls, allowing callers to handle exit paths
>   gracefully.
> 
> . Correct typo in tools Makefile, fix from Borislav Petkov.
> 
> . Add 'perf bench numa mem' NUMA performance measurement suite, from Ingo Molnar.
> 
> . Handle dynamic array's element size properly, fix from Jiri Olsa.
> 
> . Fix memory leaks on evsel->counts, from Namhyung Kim.
> 
> . Make numa benchmark optional, allowing the build in machines where required
>   numa libraries are not present, fix from Peter Hurley.
> 
> . Add interval printing in 'perf stat', from Stephane Eranian.
> 
> . Fix compile warnings in tests/attr.c, from Sukadev Bhattiprolu.
> 
> . Fix double free, pclose instead of fclose, leaks and double fclose errors
>   found with the cppcheck tool, from Thomas Jarosch.
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (8):
>       perf tools: Stop using 'self' in strlist
>       perf tools: Stop using 'self' in map.[ch]
>       perf tools: Use memdup in map__clone
>       perf kmem: Use memdup()
>       perf header: Stop using die() calls when processing tracing data
>       perf ui browser: Free browser->helpline() on ui_browser__hide()
>       perf tests: Call machine__exit in the vmlinux matches kallsyms test
>       perf tests: Fix leaks on PERF_RECORD_* test
> 
> Borislav Petkov (1):
>       tools: Correct typo in tools Makefile
> 
> Ingo Molnar (1):
>       perf: Add 'perf bench numa mem' NUMA performance measurement suite
> 
> Jiri Olsa (1):
>       tools lib traceevent: Handle dynamic array's element size properly
> 
> Namhyung Kim (1):
>       perf evsel: Fix memory leaks on evsel->counts
> 
> Peter Hurley (1):
>       perf tools: Make numa benchmark optional
> 
> Stephane Eranian (2):
>       perf evsel: Add prev_raw_count field
>       perf stat: Add interval printing
> 
> Sukadev Bhattiprolu (1):
>       perf tools, powerpc: Fix compile warnings in tests/attr.c
> 
> Thomas Jarosch (5):
>       perf tools: Fix possible double free on error
>       perf sort: Use pclose() instead of fclose() on pipe stream
>       perf tools: Fix memory leak on error
>       perf header: Fix memory leak for the "Not caching a kptr_restrict'ed /proc/kallsyms" case
>       perf header: Fix double fclose() on do_write(fd, xxx) failure
> 
>  tools/Makefile                           |    2 +-
>  tools/lib/traceevent/event-parse.c       |   39 +-
>  tools/perf/Documentation/perf-stat.txt   |    4 +
>  tools/perf/Makefile                      |   13 +
>  tools/perf/arch/common.c                 |    1 +
>  tools/perf/bench/bench.h                 |    1 +
>  tools/perf/bench/numa.c                  | 1731 ++++++++++++++++++++++++++++++
>  tools/perf/builtin-bench.c               |   17 +
>  tools/perf/builtin-kmem.c                |    6 +-
>  tools/perf/builtin-stat.c                |  158 ++-
>  tools/perf/config/feature-tests.mak      |   11 +
>  tools/perf/tests/attr.c                  |    5 +
>  tools/perf/tests/open-syscall-all-cpus.c |    1 +
>  tools/perf/tests/perf-record.c           |   12 +-
>  tools/perf/tests/vmlinux-kallsyms.c      |    4 +-
>  tools/perf/ui/browser.c                  |    2 +
>  tools/perf/util/event.c                  |    4 +-
>  tools/perf/util/evsel.c                  |   31 +
>  tools/perf/util/evsel.h                  |    2 +
>  tools/perf/util/header.c                 |   25 +-
>  tools/perf/util/map.c                    |  118 +-
>  tools/perf/util/map.h                    |   24 +-
>  tools/perf/util/sort.c                   |    7 +-
>  tools/perf/util/strlist.c                |   54 +-
>  tools/perf/util/strlist.h                |   42 +-
>  25 files changed, 2154 insertions(+), 160 deletions(-)
>  create mode 100644 tools/perf/bench/numa.c

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling.

- Arnaldo

The following changes since commit 8dfec403e39b7c37fd6e8813bacc01da1e1210ab:

  perf tests: Removing 'optional' field (2012-11-05 14:03:59 -0300)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo

for you to fetch changes up to 27f94d52394003d444a383eaf8d4824daf32432e:

  tools lib traceevent: Use 'const' in variables pointing to const strings (2012-11-09 17:42:47 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

. Add a 'link' method for hists, so that we can have the leader with
  buckets for all the entries in all the hists.  This new method
  is now used in the default 'diff' output, making the sum of the 'baseline'
  column be 100%, eliminating blind spots. Now we need to use this
  for 'diff' with > 2 perf.data files and for multi event 'report' and
  'annotate'.

. libtraceevent fixes for compiler warnings trying to make perf it build
  on some distros, like fedora 14, 32-bit, some of the warnings really
  pointed to real bugs.

. Remove temp dir on failure in 'perf test', fix from Jiri Olsa.

. Fixes for handling data, stack mmaps, from Namhyung Kim.

. Fix live annotation bug related to recent objdump lookup patches, from
  Namhyung Kim

. Don't try to follow jump target on PLT symbols in the annotation browser,
  fix from Namhyung Kim.

. Fix leak on hist_entry delete, from Namhyung Kim.

. Fix a CPU_ALLOC related build error on builtin-test, from Zheng Liu.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Andi Kleen (1):
      perf tools: Add arbitary aliases and support names with -

Arnaldo Carvalho de Melo (10):
      perf diff: Start moving to support matching more than two hists
      perf diff: Move hists__match to the hists lib
      perf hists: Introduce hists__link
      perf diff: Use hists__link when not pairing just with baseline
      perf machine: Move more methods to machine.[ch]
      tools lib traceevent: Add __maybe_unused to unused parameters
      tools lib traceevent: Avoid comparisions between signed/unsigned
      tools lib traceevent: No need to check for < 0 on an unsigned enum
      tools lib traceevent: Handle INVALID_ARG_TYPE errno in pevent_strerror
      tools lib traceevent: Use 'const' in variables pointing to const strings

Jiri Olsa (2):
      perf tests: Move attr.py temp dir cleanup into finally section
      perf tools: Add LIBDW_DIR Makefile variable to for alternate libdw

Namhyung Kim (7):
      perf machine: Set kernel data mapping length
      perf tools: Fix detection of stack area
      perf hists: Free branch_info when freeing hist_entry
      perf tools: Don't try to lookup objdump for live mode
      perf annotate: Whitespace fixups
      perf annotate: Don't try to follow jump target on PLT symbols
      perf annotate: Merge same lines in summary view

Zheng Liu (1):
      perf test: fix a build error on builtin-test

 tools/lib/traceevent/event-parse.c |   22 ++--
 tools/perf/Makefile                |   12 ++-
 tools/perf/arch/common.c           |    7 ++
 tools/perf/builtin-diff.c          |   48 ++-------
 tools/perf/tests/attr.py           |   30 +++---
 tools/perf/tests/builtin-test.c    |   39 +++----
 tools/perf/tests/dso-data.c        |    1 +
 tools/perf/ui/browsers/annotate.c  |   12 +++
 tools/perf/ui/hist.c               |   10 +-
 tools/perf/util/annotate.c         |   69 ++++++++++--
 tools/perf/util/annotate.h         |    1 +
 tools/perf/util/dso.c              |    1 +
 tools/perf/util/hist.c             |  100 ++++++++++++++++++
 tools/perf/util/hist.h             |    3 +
 tools/perf/util/machine.c          |  205 ++++++++++++++++++++++++++++++++++--
 tools/perf/util/machine.h          |  131 ++++++++++++++++++++++-
 tools/perf/util/map.c              |  181 +------------------------------
 tools/perf/util/map.h              |   93 ----------------
 tools/perf/util/parse-events.l     |    2 +
 tools/perf/util/session.h          |    5 +-
 tools/perf/util/sort.h             |   27 ++++-
 tools/perf/util/symbol.c           |    1 +
 tools/perf/util/symbol.h           |   20 ----
 23 files changed, 604 insertions(+), 416 deletions(-)

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Namhyung Kim]

Hi Arnaldo,

On Fri,  9 Nov 2012 18:42:49 -0300, Arnaldo Carvalho de Melo wrote:
> Hi Ingo,
>
> 	Please consider pulling.
>
> - Arnaldo
>
> The following changes since commit 8dfec403e39b7c37fd6e8813bacc01da1e1210ab:
>
>   perf tests: Removing 'optional' field (2012-11-05 14:03:59 -0300)
>
> are available in the git repository at:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo
>
> for you to fetch changes up to 27f94d52394003d444a383eaf8d4824daf32432e:
>
>   tools lib traceevent: Use 'const' in variables pointing to const strings (2012-11-09 17:42:47 -0300)
>
> ----------------------------------------------------------------
> perf/core improvements and fixes:
>
> . Add a 'link' method for hists, so that we can have the leader with
>   buckets for all the entries in all the hists.  This new method
>   is now used in the default 'diff' output, making the sum of the 'baseline'
>   column be 100%, eliminating blind spots. Now we need to use this
>   for 'diff' with > 2 perf.data files and for multi event 'report' and
>   'annotate'.

I'm not sure it can be used for group report at least in its current
form.  IIUC it connects multiple hist entries using a list head and
create a dummy entry in the leader if need be.  But it didn't handle
non-leader entries so it's hard to tell which is which if less entries
are present only.  For example consider following case:

	leader		member1		member2
	A		A		A
	B
			C
					D

where leader, member1 and member2 are evsel/hists and A, B, C and D are
hist entries.  After 'linking' the entries the leader will have
following linkage:

	leader
	A	->	A	->	A
	B
	C (dummy) ->	C
	D (dummy)		->	D

In this case, for entry A the leader can determine which entry came from
which hists by looking its order in the list.  For entry B the leader
can use zero value for them since the list is empty.  However for
entries C and D, it cannot know which one is the right hists unless it
records a hist index or creates dummy entry and insert it in a correct
order (looks far from an optimal solution).  Am I missing something?

Thanks,
Namhyung

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Jiri Olsa]

On Mon, Nov 12, 2012 at 11:10:52AM +0900, Namhyung Kim wrote:
> Hi Arnaldo,
> 
> On Fri,  9 Nov 2012 18:42:49 -0300, Arnaldo Carvalho de Melo wrote:
> > Hi Ingo,
> >
> > 	Please consider pulling.
> >
> > - Arnaldo
> >
> > The following changes since commit 8dfec403e39b7c37fd6e8813bacc01da1e1210ab:
> >
> >   perf tests: Removing 'optional' field (2012-11-05 14:03:59 -0300)
> >
> > are available in the git repository at:
> >
> >   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo
> >
> > for you to fetch changes up to 27f94d52394003d444a383eaf8d4824daf32432e:
> >
> >   tools lib traceevent: Use 'const' in variables pointing to const strings (2012-11-09 17:42:47 -0300)
> >
> > ----------------------------------------------------------------
> > perf/core improvements and fixes:
> >
> > . Add a 'link' method for hists, so that we can have the leader with
> >   buckets for all the entries in all the hists.  This new method
> >   is now used in the default 'diff' output, making the sum of the 'baseline'
> >   column be 100%, eliminating blind spots. Now we need to use this
> >   for 'diff' with > 2 perf.data files and for multi event 'report' and
> >   'annotate'.
> 
> I'm not sure it can be used for group report at least in its current
> form.  IIUC it connects multiple hist entries using a list head and
> create a dummy entry in the leader if need be.  But it didn't handle
> non-leader entries so it's hard to tell which is which if less entries
> are present only.  For example consider following case:
> 
> 	leader		member1		member2
> 	A		A		A
> 	B
> 			C
> 					D
> 
> where leader, member1 and member2 are evsel/hists and A, B, C and D are
> hist entries.  After 'linking' the entries the leader will have
> following linkage:
> 
> 	leader
> 	A	->	A	->	A
> 	B
> 	C (dummy) ->	C
> 	D (dummy)		->	D
> 
> In this case, for entry A the leader can determine which entry came from
> which hists by looking its order in the list.  For entry B the leader
> can use zero value for them since the list is empty.  However for
> entries C and D, it cannot know which one is the right hists unless it
> records a hist index or creates dummy entry and insert it in a correct
> order (looks far from an optimal solution).  Am I missing something?

there's hists pointer in hist_entry if that's what you look for

jirka

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Mon, Nov 12, 2012 at 02:55:46PM +0100, Jiri Olsa escreveu:
> On Mon, Nov 12, 2012 at 11:10:52AM +0900, Namhyung Kim wrote:
> > On Fri,  9 Nov 2012 18:42:49 -0300, Arnaldo Carvalho de Melo wrote:
> > > . Add a 'link' method for hists, so that we can have the leader with
> > >   buckets for all the entries in all the hists.  This new method
> > >   is now used in the default 'diff' output, making the sum of the 'baseline'
> > >   column be 100%, eliminating blind spots. Now we need to use this
> > >   for 'diff' with > 2 perf.data files and for multi event 'report' and
> > >   'annotate'.

> > I'm not sure it can be used for group report at least in its current
> > form.  IIUC it connects multiple hist entries using a list head and
> > create a dummy entry in the leader if need be.  But it didn't handle
> > non-leader entries so it's hard to tell which is which if less entries
> > are present only.  For example consider following case:

> > 	leader		member1		member2
> > 	A		A		A
> > 	B
> > 			C
> > 					D

> > where leader, member1 and member2 are evsel/hists and A, B, C and D are
> > hist entries.  After 'linking' the entries the leader will have
> > following linkage:

> > 	leader
> > 	A	->	A	->	A
> > 	B
> > 	C (dummy) ->	C
> > 	D (dummy)		->	D

> > In this case, for entry A the leader can determine which entry came from
> > which hists by looking its order in the list.  For entry B the leader
> > can use zero value for them since the list is empty.  However for
> > entries C and D, it cannot know which one is the right hists unless it
> > records a hist index or creates dummy entry and insert it in a correct
> > order (looks far from an optimal solution).  Am I missing something?

> there's hists pointer in hist_entry if that's what you look for

And from there to evsel->idx. In your patchset you even introduce
hists_2_evsel(), right?

- Arnaldo

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Namhyung Kim]

On Mon, 12 Nov 2012 13:01:39 -0300, Arnaldo Carvalho de Melo wrote:
> Em Mon, Nov 12, 2012 at 02:55:46PM +0100, Jiri Olsa escreveu:
>> On Mon, Nov 12, 2012 at 11:10:52AM +0900, Namhyung Kim wrote:
>> > On Fri,  9 Nov 2012 18:42:49 -0300, Arnaldo Carvalho de Melo wrote:
>> > > . Add a 'link' method for hists, so that we can have the leader with
>> > >   buckets for all the entries in all the hists.  This new method
>> > >   is now used in the default 'diff' output, making the sum of the 'baseline'
>> > >   column be 100%, eliminating blind spots. Now we need to use this
>> > >   for 'diff' with > 2 perf.data files and for multi event 'report' and
>> > >   'annotate'.
>
>> > I'm not sure it can be used for group report at least in its current
>> > form.  IIUC it connects multiple hist entries using a list head and
>> > create a dummy entry in the leader if need be.  But it didn't handle
>> > non-leader entries so it's hard to tell which is which if less entries
>> > are present only.  For example consider following case:
>
>> > 	leader		member1		member2
>> > 	A		A		A
>> > 	B
>> > 			C
>> > 					D
>
>> > where leader, member1 and member2 are evsel/hists and A, B, C and D are
>> > hist entries.  After 'linking' the entries the leader will have
>> > following linkage:
>
>> > 	leader
>> > 	A	->	A	->	A
>> > 	B
>> > 	C (dummy) ->	C
>> > 	D (dummy)		->	D
>
>> > In this case, for entry A the leader can determine which entry came from
>> > which hists by looking its order in the list.  For entry B the leader
>> > can use zero value for them since the list is empty.  However for
>> > entries C and D, it cannot know which one is the right hists unless it
>> > records a hist index or creates dummy entry and insert it in a correct
>> > order (looks far from an optimal solution).  Am I missing something?
>
>> there's hists pointer in hist_entry if that's what you look for
>
> And from there to evsel->idx. In your patchset you even introduce
> hists_2_evsel(), right?

Ah, okay.  I worried about a possiblity of non-consecutive event groups
for some reason, but that's not gonna happen in the future?

Thanks,
Namhyung

Re: [GIT PULL 00/21] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@infradead.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling.
> 
> - Arnaldo
> 
> The following changes since commit 8dfec403e39b7c37fd6e8813bacc01da1e1210ab:
> 
>   perf tests: Removing 'optional' field (2012-11-05 14:03:59 -0300)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo
> 
> for you to fetch changes up to 27f94d52394003d444a383eaf8d4824daf32432e:
> 
>   tools lib traceevent: Use 'const' in variables pointing to const strings (2012-11-09 17:42:47 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> . Add a 'link' method for hists, so that we can have the leader with
>   buckets for all the entries in all the hists.  This new method
>   is now used in the default 'diff' output, making the sum of the 'baseline'
>   column be 100%, eliminating blind spots. Now we need to use this
>   for 'diff' with > 2 perf.data files and for multi event 'report' and
>   'annotate'.
> 
> . libtraceevent fixes for compiler warnings trying to make perf it build
>   on some distros, like fedora 14, 32-bit, some of the warnings really
>   pointed to real bugs.
> 
> . Remove temp dir on failure in 'perf test', fix from Jiri Olsa.
> 
> . Fixes for handling data, stack mmaps, from Namhyung Kim.
> 
> . Fix live annotation bug related to recent objdump lookup patches, from
>   Namhyung Kim
> 
> . Don't try to follow jump target on PLT symbols in the annotation browser,
>   fix from Namhyung Kim.
> 
> . Fix leak on hist_entry delete, from Namhyung Kim.
> 
> . Fix a CPU_ALLOC related build error on builtin-test, from Zheng Liu.
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Andi Kleen (1):
>       perf tools: Add arbitary aliases and support names with -
> 
> Arnaldo Carvalho de Melo (10):
>       perf diff: Start moving to support matching more than two hists
>       perf diff: Move hists__match to the hists lib
>       perf hists: Introduce hists__link
>       perf diff: Use hists__link when not pairing just with baseline
>       perf machine: Move more methods to machine.[ch]
>       tools lib traceevent: Add __maybe_unused to unused parameters
>       tools lib traceevent: Avoid comparisions between signed/unsigned
>       tools lib traceevent: No need to check for < 0 on an unsigned enum
>       tools lib traceevent: Handle INVALID_ARG_TYPE errno in pevent_strerror
>       tools lib traceevent: Use 'const' in variables pointing to const strings
> 
> Jiri Olsa (2):
>       perf tests: Move attr.py temp dir cleanup into finally section
>       perf tools: Add LIBDW_DIR Makefile variable to for alternate libdw
> 
> Namhyung Kim (7):
>       perf machine: Set kernel data mapping length
>       perf tools: Fix detection of stack area
>       perf hists: Free branch_info when freeing hist_entry
>       perf tools: Don't try to lookup objdump for live mode
>       perf annotate: Whitespace fixups
>       perf annotate: Don't try to follow jump target on PLT symbols
>       perf annotate: Merge same lines in summary view
> 
> Zheng Liu (1):
>       perf test: fix a build error on builtin-test
> 
>  tools/lib/traceevent/event-parse.c |   22 ++--
>  tools/perf/Makefile                |   12 ++-
>  tools/perf/arch/common.c           |    7 ++
>  tools/perf/builtin-diff.c          |   48 ++-------
>  tools/perf/tests/attr.py           |   30 +++---
>  tools/perf/tests/builtin-test.c    |   39 +++----
>  tools/perf/tests/dso-data.c        |    1 +
>  tools/perf/ui/browsers/annotate.c  |   12 +++
>  tools/perf/ui/hist.c               |   10 +-
>  tools/perf/util/annotate.c         |   69 ++++++++++--
>  tools/perf/util/annotate.h         |    1 +
>  tools/perf/util/dso.c              |    1 +
>  tools/perf/util/hist.c             |  100 ++++++++++++++++++
>  tools/perf/util/hist.h             |    3 +
>  tools/perf/util/machine.c          |  205 ++++++++++++++++++++++++++++++++++--
>  tools/perf/util/machine.h          |  131 ++++++++++++++++++++++-
>  tools/perf/util/map.c              |  181 +------------------------------
>  tools/perf/util/map.h              |   93 ----------------
>  tools/perf/util/parse-events.l     |    2 +
>  tools/perf/util/session.h          |    5 +-
>  tools/perf/util/sort.h             |   27 ++++-
>  tools/perf/util/symbol.c           |    1 +
>  tools/perf/util/symbol.h           |   20 ----
>  23 files changed, 604 insertions(+), 416 deletions(-)

Pulled, thanks Arnaldo!

	Ingo