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| author | Arnaldo Carvalho de Melo | 2015-07-22 21:14:29 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2015-07-24 03:01:37 +0200 |
| commit | c3168b0db93ad5ffeede4ecdf807dab64270f55d (patch) | |
| tree | 31f6c71ea3ef9a361590fa2aebdb3d4d99415a74 /tools/perf/util/machine.c | |
| parent | tools lib traceevent: Allow setting an alternative symbol resolver (diff) | |
| download | kernel-qcow2-linux-c3168b0db93ad5ffeede4ecdf807dab64270f55d.tar.gz kernel-qcow2-linux-c3168b0db93ad5ffeede4ecdf807dab64270f55d.tar.xz kernel-qcow2-linux-c3168b0db93ad5ffeede4ecdf807dab64270f55d.zip | |
perf symbols: Provide libtraceevent callback to resolve kernel symbols
That provides the function signature expected by libtraceevent's
pevent_set_function_resolver().
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/n/tip-ie6hvlb6u15y4ulg9j1612zg@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/machine.c')
| -rw-r--r-- | tools/perf/util/machine.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index d0bf1e590479..22006c15edf4 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -1993,3 +1993,17 @@ struct dso *machine__findnew_dso(struct machine *machine, const char *filename) { return dsos__findnew(&machine->dsos, filename); } + +char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp) +{ + struct machine *machine = vmachine; + struct map *map; + struct symbol *sym = map_groups__find_symbol(&machine->kmaps, MAP__FUNCTION, *addrp, &map, NULL); + + if (sym == NULL) + return NULL; + + *modp = __map__is_kmodule(map) ? (char *)map->dso->short_name : NULL; + *addrp = map->unmap_ip(map, sym->start); + return sym->name; +} |