[PATCH 14/23] perf annotate: Return arch from symbol__disassemble() and save it in browser

Arnaldo Carvalho de Melo
2017-06-20T01:58:13Z

From: Jin Yao <yao.jin@linux.intel.com>

In annotate browser, we will add support to check fused instructions.
While this is x86-specific feature so we need the annotate browser to
know what the arch it runs on.

symbol__disassemble() has figured out the arch. This patch just lets the
arch return from symbol__disassemble and save the arch in annotate
browser.

Signed-off-by: Yao Jin <yao.jin@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1497840958-4759-2-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-top.c | 2 +-
tools/perf/ui/browsers/annotate.c | 6 +++++-
tools/perf/ui/gtk/annotate.c | 3 ++-
tools/perf/util/annotate.c | 10 ++++++++--
tools/perf/util/annotate.h | 4 +++-
5 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 10b6362ca0bf..2bcfa46913c8 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -134,7 +134,7 @@ static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he)
return err;
}

- err = symbol__disassemble(sym, map, NULL, 0);
+ err = symbol__disassemble(sym, map, NULL, 0, NULL);
if (err == 0) {
out_assign:
top->sym_filter_entry = he;
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 7a03389b7a03..27f41f28dcb4 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -46,12 +46,15 @@ static struct annotate_browser_opt {
.jump_arrows = true,
};

+struct arch;
+
struct annotate_browser {
struct ui_browser b;
struct rb_root entries;
struct rb_node *curr_hot;
struct disasm_line *selection;
struct disasm_line **offsets;
+ struct arch *arch;
int nr_events;
u64 start;
int nr_asm_entries;
@@ -1070,7 +1073,8 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map,
(nr_pcnt - 1);
}

- err = symbol__disassemble(sym, map, perf_evsel__env_arch(evsel), sizeof_bdl);
+ err = symbol__disassemble(sym, map, perf_evsel__env_arch(evsel),
+ sizeof_bdl, &browser.arch);
if (err) {
char msg[BUFSIZ];
symbol__strerror_disassemble(sym, map, err, msg, sizeof(msg));
diff --git a/tools/perf/ui/gtk/annotate.c b/tools/perf/ui/gtk/annotate.c
index e99ba86158d2..d903fd493416 100644
--- a/tools/perf/ui/gtk/annotate.c
+++ b/tools/perf/ui/gtk/annotate.c
@@ -168,7 +168,8 @@ static int symbol__gtk_annotate(struct symbol *sym, struct map *map,
if (map->dso->annotate_warned)
return -1;

- err = symbol__disassemble(sym, map, perf_evsel__env_arch(evsel), 0);
+ err = symbol__disassemble(sym, map, perf_evsel__env_arch(evsel),
+ 0, NULL);
if (err) {
char msg[BUFSIZ];
symbol__strerror_disassemble(sym, map, err, msg, sizeof(msg));
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index ddbd56df9187..be1caabb9290 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1379,7 +1379,9 @@ static const char *annotate__norm_arch(const char *arch_name)
return normalize_arch((char *)arch_name);
}

-int symbol__disassemble(struct symbol *sym, struct map *map, const char *arch_name, size_t privsize)
+int symbol__disassemble(struct symbol *sym, struct map *map,
+ const char *arch_name, size_t privsize,
+ struct arch **parch)
{
struct dso *dso = map->dso;
char command[PATH_MAX * 2];
@@ -1405,6 +1407,9 @@ int symbol__disassemble(struct symbol *sym, struct map *map, const char *arch_na
if (arch == NULL)
return -ENOTSUP;

+ if (parch)
+ *parch = arch;
+
if (arch->init) {
err = arch->init(arch);
if (err) {
@@ -1901,7 +1906,8 @@ int symbol__tty_annotate(struct symbol *sym, struct map *map,
struct rb_root source_line = RB_ROOT;
u64 len;

- if (symbol__disassemble(sym, map, perf_evsel__env_arch(evsel), 0) < 0)
+ if (symbol__disassemble(sym, map, perf_evsel__env_arch(evsel),
+ 0, NULL) < 0)
return -1;

len = symbol__size(sym);
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 948aa8e6fd39..21055034aedd 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -158,7 +158,9 @@ int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 addr);
int symbol__alloc_hist(struct symbol *sym);
void symbol__annotate_zero_histograms(struct symbol *sym);

-int symbol__disassemble(struct symbol *sym, struct map *map, const char *arch_name, size_t privsize);
+int symbol__disassemble(struct symbol *sym, struct map *map,
+ const char *arch_name, size_t privsize,
+ struct arch **parch);

enum symbol_disassemble_errno {
SYMBOL_ANNOTATE_ERRNO__SUCCESS = 0,
--
2.9.4