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perf script: Add --inline option for debugging

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The --inline option is to show inlined functions in callchains.

For example:

  $ perf script
  a.out  5644 11611.467597:     309961 cycles:u:
                     790 main (/home/namhyung/tmp/perf/a.out)
                   20511 __libc_start_main (/usr/lib/libc-2.25.so)
                     8ba _start (/home/namhyung/tmp/perf/a.out)
  ...

  $ perf script --inline
  a.out  5644 11611.467597:     309961 cycles:u:
                     790 main (/home/namhyung/tmp/perf/a.out)
                         std::__detail::_Adaptor<std::linear_congruential_engine<unsigned long, 16807ul, 0ul, 2147483647ul>, double>::operator()
                         std::uniform_real_distribution<double>::operator()<std::linear_congruential_engine<unsigned long, 16807ul, 0ul, 2147483647ul> >
                         std::uniform_real_distribution<double>::operator()<std::linear_congruential_engine<unsigned long, 16807ul, 0ul, 2147483647ul> >
                         main
                   20511 __libc_start_main (/usr/lib/libc-2.25.so)
                     8ba _start (/home/namhyung/tmp/perf/a.out)
  ...

Reviewed-and-tested-by: Milian Wolff <milian.wolff@kdab.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kernel-team@lge.com
Link: http://lkml.kernel.org/r/20170524062129.32529-5-namhyung@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Namhyung Kim 2017-05-24 15:21:26 +09:00 committed by Ingo Molnar
parent 1982ad48fc
commit 325fbff51f
3 changed files with 39 additions and 0 deletions
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4
tools/perf/Documentation/perf-script.txt
View file

@ -311,6 +311,10 @@ include::itrace.txt[]
Set the maximum number of program blocks to print with brstackasm for
each sample.
--inline::
If a callgraph address belongs to an inlined function, the inline stack
will be printed. Each entry has function name and file/line.
SEE ALSO
--------
linkperf:perf-record[1], linkperf:perf-script-perl[1],

2
tools/perf/builtin-script.c
View file

@ -2494,6 +2494,8 @@ int cmd_script(int argc, const char **argv)
"Enable kernel symbol demangling"),
OPT_STRING(0, "time", &script.time_str, "str",
"Time span of interest (start,stop)"),
OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name,
"Show inline function"),
OPT_END()
};
const char * const script_subcommands[] = { "record", "report", NULL };

33
tools/perf/util/evsel_fprintf.c
View file

@ -7,6 +7,7 @@
#include "map.h"
#include "strlist.h"
#include "symbol.h"
#include "srcline.h"
static int comma_fprintf(FILE *fp, bool *first, const char *fmt, ...)
{
@ -168,6 +169,38 @@ int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment,
if (!print_oneline)
printed += fprintf(fp, "\n");
if (symbol_conf.inline_name && node->map) {
struct inline_node *inode;
addr = map__rip_2objdump(node->map, node->ip),
inode = dso__parse_addr_inlines(node->map->dso, addr);
if (inode) {
struct inline_list *ilist;
list_for_each_entry(ilist, &inode->val, list) {
if (print_arrow)
printed += fprintf(fp, " <-");
/* IP is same, just skip it */
if (print_ip)
printed += fprintf(fp, "%c%16s",
s, "");
if (print_sym)
printed += fprintf(fp, " %s",
ilist->funcname);
if (print_srcline)
printed += fprintf(fp, "\n %s:%d",
ilist->filename,
ilist->line_nr);
if (!print_oneline)
printed += fprintf(fp, "\n");
}
inline_node__delete(inode);
}
}
if (symbol_conf.bt_stop_list &&
node->sym &&
strlist__has_entry(symbol_conf.bt_stop_list,