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perf report: Find the inline stack for a given address

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It would be useful for perf to support a mode to query the inline stack
for a given callgraph address. This would simplify finding the right
code in code that does a lot of inlining.

The srcline.c has contained the code which supports to translate the
address to filename:line_nr. This patch just extends the function to let
it support getting the inline stacks.

It introduces the inline_list which will store the inline function
result (filename:line_nr and funcname).

If BFD lib is not supported, the result is only filename:line_nr.

Signed-off-by: Yao Jin <yao.jin@linux.intel.com>
Tested-by: Milian Wolff <milian.wolff@kdab.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@intel.com>
Link: http://lkml.kernel.org/r/1490474069-15823-3-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jin Yao
2017-03-26 04:34:26 +08:00
committed by Arnaldo Carvalho de Melo
parent 5580338d0f
commit a64489c56c
5 changed files with 192 additions and 5 deletions
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16
tools/perf/util/util.h
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@@ -364,4 +364,20 @@ int is_printable_array(char *p, unsigned int len);
int timestamp__scnprintf_usec(u64 timestamp, char *buf, size_t sz);
int unit_number__scnprintf(char *buf, size_t size, u64 n);
struct inline_list {
char *filename;
char *funcname;
unsigned int line_nr;
struct list_head list;
};
struct inline_node {
u64 addr;
struct list_head val;
};
struct inline_node *dso__parse_addr_inlines(struct dso *dso, u64 addr);
void inline_node__delete(struct inline_node *node);
#endif /* GIT_COMPAT_UTIL_H */