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perf script: Add option to pass arguments to dlfilters

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Add option --dlarg to pass arguments to dlfilters. The --dlarg option can
be repeated to pass more than 1 argument.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210627131818.810-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter
2021-06-27 16:18:12 +03:00
committed by Arnaldo Carvalho de Melo
parent 638e2b9984
commit 3d032a2516
6 changed files with 91 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
tools/perf/builtin-script.c
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@@ -81,6 +81,8 @@ static struct perf_stat_config stat_config;
static int max_blocks;
static bool native_arch;
static struct dlfilter *dlfilter;
static int dlargc;
static char **dlargv;
unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH;
@@ -3175,6 +3177,34 @@ static int list_available_scripts(const struct option *opt __maybe_unused,
exit(0);
}
static int add_dlarg(const struct option *opt __maybe_unused,
const char *s, int unset __maybe_unused)
{
char *arg = strdup(s);
void *a;
if (!arg)
return -1;
a = realloc(dlargv, sizeof(dlargv[0]) * (dlargc + 1));
if (!a) {
free(arg);
return -1;
}
dlargv = a;
dlargv[dlargc++] = arg;
return 0;
}
static void free_dlarg(void)
{
while (dlargc--)
free(dlargv[dlargc]);
free(dlargv);
}
/*
* Some scripts specify the required events in their "xxx-record" file,
* this function will check if the events in perf.data match those
@@ -3639,6 +3669,8 @@ int cmd_script(int argc, const char **argv)
OPT_STRING('g', "gen-script", &generate_script_lang, "lang",
"generate perf-script.xx script in specified language"),
OPT_STRING(0, "dlfilter", &dlfilter_file, "file", "filter .so file name"),
OPT_CALLBACK(0, "dlarg", NULL, "argument", "filter argument",
add_dlarg),
OPT_STRING('i', "input", &input_name, "file", "input file name"),
OPT_BOOLEAN('d', "debug-mode", &debug_mode,
"do various checks like samples ordering and lost events"),
@@ -3958,7 +3990,7 @@ script_found:
}
if (dlfilter_file) {
dlfilter = dlfilter__new(dlfilter_file);
dlfilter = dlfilter__new(dlfilter_file, dlargc, dlargv);
if (!dlfilter)
return -1;
}
@@ -4116,6 +4148,7 @@ out_delete:
if (script_started)
cleanup_scripting();
dlfilter__cleanup(dlfilter);
free_dlarg();
out:
return err;
}