diff options
| author |   Adrian Hunter <adrian.hunter@intel.com> | 2022-10-26 10:27:36 +0300 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-10-26 10:49:42 -0300 |
| commit | cba04f3136b658583adb191556f99d087589c1cc (patch) | |
| tree | 3eed438ddd893528dcb093665fa6e5648f0dda90 /tools/perf/util | |
| parent | tools headers UAPI: Sync linux/perf_event.h with the kernel sources (diff) | |
| download | linux-dev-cba04f3136b658583adb191556f99d087589c1cc.tar.xz linux-dev-cba04f3136b658583adb191556f99d087589c1cc.zip | |
perf auxtrace: Fix address filter symbol name match for modules
For modules, names from kallsyms__parse() contain the module name which
meant that module symbols did not match exactly by name.
Fix by matching the name string up to the separating tab character.
Fixes: 1b36c03e356936d6 ("perf record: Add support for using symbols in address filters")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20221026072736.2982-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
| -rw-r--r-- | tools/perf/util/auxtrace.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c index 60d8beb662aa..46ada5ec3f9a 100644 --- a/tools/perf/util/auxtrace.c +++ b/tools/perf/util/auxtrace.c @@ -2325,11 +2325,19 @@ struct sym_args { bool near; }; +static bool kern_sym_name_match(const char *kname, const char *name) +{ + size_t n = strlen(name); + + return !strcmp(kname, name) || + (!strncmp(kname, name, n) && kname[n] == '\t'); +} + static bool kern_sym_match(struct sym_args *args, const char *name, char type) { /* A function with the same name, and global or the n'th found or any */ return kallsyms__is_function(type) && - !strcmp(name, args->name) && + kern_sym_name_match(name, args->name) && ((args->global && isupper(type)) || (args->selected && ++(args->cnt) == args->idx) || (!args->global && !args->selected)); |