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authorArnaldo Carvalho de Melo <acme@redhat.com>2018-04-24 16:58:56 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-04-26 18:47:08 +0200
commit71a84b5aedf5023f4009c3bbf28ecba256201f87 (patch)
tree966cfe5ebed091694f0e8981fa0f4a9d9769d839 /tools/perf/util/unwind-libdw.c
parentperf script: Use thread__find_symbol() instead of ad-hoc equivalent (diff)
downloadlinux-71a84b5aedf5023f4009c3bbf28ecba256201f87.tar.xz
linux-71a84b5aedf5023f4009c3bbf28ecba256201f87.zip
perf thread: Make thread__find_map() return the map
It was returning the searched map just on the addr_location passed, with the function itself returning void. Make it return the map so that we can make the code more compact. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-tzlrrzdeoof4i6ktyqv1t6ks@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/unwind-libdw.c')
-rw-r--r--tools/perf/util/unwind-libdw.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/tools/perf/util/unwind-libdw.c b/tools/perf/util/unwind-libdw.c
index bdc22f1864df..17401922cd42 100644
--- a/tools/perf/util/unwind-libdw.c
+++ b/tools/perf/util/unwind-libdw.c
@@ -104,8 +104,7 @@ static int access_dso_mem(struct unwind_info *ui, Dwarf_Addr addr,
struct addr_location al;
ssize_t size;
- thread__find_map(ui->thread, PERF_RECORD_MISC_USER, addr, &al);
- if (!al.map) {
+ if (!thread__find_map(ui->thread, PERF_RECORD_MISC_USER, addr, &al)) {
/*
* We've seen cases (softice) where DWARF unwinder went
* through non executable mmaps, which we need to lookup