From 5c5e854bc760a2e2c878df3cfcf2afa4febcd511 Mon Sep 17 00:00:00 2001 From: Stephane Eranian Date: Wed, 21 Aug 2013 12:10:25 +0200 Subject: perf tools: Add attr->mmap2 support This patch adds support for the new PERF_RECORD_MMAP2 record type exposed by the kernel. This is an extended PERF_RECORD_MMAP record. It adds for each file-backed mapping the device major, minor number and the inode number and generation. This triplet uniquely identifies the source of a file-backed mapping. It can be used to detect identical virtual mappings between processes, for instance. The patch will prefer MMAP2 over MMAP. Signed-off-by: Stephane Eranian Cc: Andi Kleen Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1377079825-19057-3-git-send-email-eranian@google.com [ Cope with 314add6 "Change machine__findnew_thread() to set thread pid", fix 'perf test' regression test entry affected, use perf_missing_features.mmap2 to fallback to not using .mmap2 in older kernels, so that new tools can work with kernels where this feature is not present ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/build-id.c | 1 + 1 file changed, 1 insertion(+) (limited to 'tools/perf/util/build-id.c') diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c index fb584092eb8..7ded71d19d7 100644 --- a/tools/perf/util/build-id.c +++ b/tools/perf/util/build-id.c @@ -67,6 +67,7 @@ static int perf_event__exit_del_thread(struct perf_tool *tool __maybe_unused, struct perf_tool build_id__mark_dso_hit_ops = { .sample = build_id__mark_dso_hit, .mmap = perf_event__process_mmap, + .mmap2 = perf_event__process_mmap2, .fork = perf_event__process_fork, .exit = perf_event__exit_del_thread, .attr = perf_event__process_attr, -- cgit v1.2.3-70-g09d2