From 8b8ef2d74dec305b99dd43ec71d3ba2f502100b9 Mon Sep 17 00:00:00 2001 From: Jin Yao Date: Wed, 19 Jul 2017 04:31:32 +0800 Subject: [PATCH] perf report: Enable finding kernel inline functions Currently perf supports a mode to query inline stack. It works well for finding user space inline functions but it doesn't work for kernel ones, due to some unnecessary check. This patch removes these unnecessary checks. Now kernel inline functions can be reported. For example: perf report --inline -g func --stdio |--46.19%--do_huge_pmd_anonymous_page | do_huge_pmd_anonymous_page (inline) | __do_huge_pmd_anonymous_page (inline) | __SetPageUptodate (inline) | __set_bit (inline) The result is compared with the output of addr2line. They match. Signed-off-by: Yao Jin Cc: Alexander Shishkin Cc: Andi Kleen Cc: Jiri Olsa Cc: Kan Liang Cc: Milian Wolff Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1500409892-15904-1-git-send-email-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/ui/browsers/hists.c | 3 --- tools/perf/ui/stdio/hist.c | 3 --- 2 files changed, 6 deletions(-) diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index 69f4570bd4f9..f4bc2462bc2c 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -166,9 +166,6 @@ static struct inline_node *inline_node__create(struct map *map, u64 ip) if (dso == NULL) return NULL; - if (dso->kernel != DSO_TYPE_USER) - return NULL; - node = dso__parse_addr_inlines(dso, map__rip_2objdump(map, ip)); diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c index 42e432bd2eb4..2df8eb1ed3c0 100644 --- a/tools/perf/ui/stdio/hist.c +++ b/tools/perf/ui/stdio/hist.c @@ -35,9 +35,6 @@ static size_t inline__fprintf(struct map *map, u64 ip, int left_margin, if (dso == NULL) return 0; - if (dso->kernel != DSO_TYPE_USER) - return 0; - node = dso__parse_addr_inlines(dso, map__rip_2objdump(map, ip)); if (node == NULL) -- 2.20.1