[GIT PULL] perfcounters fixes

Ingo Molnar
2009-08-25T18:06:05Z

Peter Zijlstra (2):
perf tools: Check perf.data owner
perf_counter: Fix typo in read() output generation

kernel/perf_counter.c | 2 +-
tools/perf/builtin-annotate.c | 7 +++++++
tools/perf/builtin-report.c | 7 +++++++
3 files changed, 15 insertions(+), 1 deletions(-)

diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c
index 36f65e2..f274e19 100644
--- a/kernel/perf_counter.c
+++ b/kernel/perf_counter.c
@@ -1791,7 +1791,7 @@ static int perf_counter_read_group(struct perf_counter *counter,
size += err;

list_for_each_entry(sub, &leader->sibling_list, list_entry) {
- err = perf_counter_read_entry(counter, read_format,
+ err = perf_counter_read_entry(sub, read_format,
buf + size);
if (err < 0)
return err;
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 343e7b1..5e17de9 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -31,6 +31,7 @@ static char *vmlinux = "vmlinux";
static char default_sort_order[] = "comm,symbol";
static char *sort_order = default_sort_order;

+static int force;
static int input;
static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV;

@@ -1334,6 +1335,11 @@ static int __cmd_annotate(void)
exit(-1);
}

+ if (!force && (stat.st_uid != geteuid())) {
+ fprintf(stderr, "file: %s not owned by current user\n", input_name);
+ exit(-1);
+ }
+
if (!stat.st_size) {
fprintf(stderr, "zero-sized file, nothing to do!\n");
exit(0);
@@ -1439,6 +1445,7 @@ static const struct option options[] = {
"input file name"),
OPT_STRING('s', "symbol", &sym_hist_filter, "symbol",
"symbol to annotate"),
+ OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
OPT_BOOLEAN('v', "verbose", &verbose,
"be more verbose (show symbol address, etc)"),
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index b53a60f..8b2ec88 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -38,6 +38,7 @@ static char *dso_list_str, *comm_list_str, *sym_list_str,
static struct strlist *dso_list, *comm_list, *sym_list;
static char *field_sep;

+static int force;
static int input;
static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV;

@@ -1856,6 +1857,11 @@ static int __cmd_report(void)
exit(-1);
}

+ if (!force && (stat.st_uid != geteuid())) {
+ fprintf(stderr, "file: %s not owned by current user\n", input_name);
+ exit(-1);
+ }
+
if (!stat.st_size) {
fprintf(stderr, "zero-sized file, nothing to do!\n");
exit(0);
@@ -2064,6 +2070,7 @@ static const struct option options[] = {
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
"dump raw trace in ASCII"),
OPT_STRING('k', "vmlinux", &vmlinux, "file", "vmlinux pathname"),
+ OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
OPT_BOOLEAN('m', "modules", &modules,
"load module symbols - WARNING: use only with -k and LIVE kernel"),
OPT_BOOLEAN('n', "show-nr-samples", &show_nr_samples,