Messages in this thread Patch in this message | | | Date | Tue, 12 Nov 2013 13:56:04 -0800 | From | tip-bot for Namhyung Kim <> | Subject | [tip:perf/urgent] perf trace: Beautify fifth argument of mmap() as fd |
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Commit-ID: 73faab3a421351c342b10b0177fec9eea1a1d809 Gitweb: http://git.kernel.org/tip/73faab3a421351c342b10b0177fec9eea1a1d809 Author: Namhyung Kim <namhyung.kim@lge.com> AuthorDate: Tue, 12 Nov 2013 15:24:59 +0900 Committer: Arnaldo Carvalho de Melo <acme@redhat.com> CommitDate: Tue, 12 Nov 2013 13:00:23 -0300
perf trace: Beautify fifth argument of mmap() as fd
The fifth argument of mmap syscall is fd and it often contains -1 as a value for anon mappings. Without this patch it doesn't show the file name as well as it shows -1 as 4294967295.
Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: David Ahern <dsahern@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1384237500-22991-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/builtin-trace.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index c3008b1..aeb6296 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -951,7 +951,8 @@ static struct syscall_fmt { { .name = "mmap", .hexret = true, .arg_scnprintf = { [0] = SCA_HEX, /* addr */ [2] = SCA_MMAP_PROT, /* prot */ - [3] = SCA_MMAP_FLAGS, /* flags */ }, }, + [3] = SCA_MMAP_FLAGS, /* flags */ + [4] = SCA_FD, /* fd */ }, }, { .name = "mprotect", .errmsg = true, .arg_scnprintf = { [0] = SCA_HEX, /* start */ [2] = SCA_MMAP_PROT, /* prot */ }, },
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