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SubjectRe: [PATCH 5.0 05/93] perf data: Dont store auxtrace index for directory data file
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Den 18-04-2019 kl. 20:56, skrev Greg Kroah-Hartman:
> [ Upstream commit cd3dd8dd8ff62374d90cb3f2e54b8c94106c7810 ]
>
> We can't store the auxtrace index when we store into multiple files,
> because we keep only offset for it, not the file.
>
> The auxtrace data will be processed correctly in the 'pipe' mode.
>
> Signed-off-by: Jiri Olsa <jolsa@kernel.org>
> Cc: Adrian Hunter <adrian.hunter@intel.com>
> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
> Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
> Cc: Andi Kleen <ak@linux.intel.com>
> Cc: Namhyung Kim <namhyung@kernel.org>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Stephane Eranian <eranian@google.com>
> Link: http://lkml.kernel.org/r/20190308134745.5057-3-jolsa@kernel.org
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> Signed-off-by: Sasha Levin <sashal@kernel.org>
> ---
> tools/perf/builtin-record.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
> index 882285fb9f64..3fd154f1701b 100644
> --- a/tools/perf/builtin-record.c
> +++ b/tools/perf/builtin-record.c
> @@ -386,7 +386,7 @@ static int record__process_auxtrace(struct perf_tool *tool,
> size_t padding;
> u8 pad[8] = {0};
>
> - if (!perf_data__is_pipe(data)) {
> + if (!perf_data__is_pipe(data) && !perf_data__is_dir(data)) {
> off_t file_offset;
> int fd = perf_data__fd(data);
> int err;
>


This breaks the build with:

builtin-record.c: In function 'record__process_auxtrace':
builtin-record.c:389:36: warning: implicit declaration of function
'perf_data__is_dir'; did you mean 'perf_data__is_pipe'?
[-Wimplicit-function-declaration]
if (!perf_data__is_pipe(data) && !perf_data__is_dir(data)) {
^~~~~~~~~~~~~~~~~

Looks like it depends atleast on:

commit ec65def1045e4c7817b7f741a86dadae82877a93
Author: Jiri Olsa <jolsa@kernel.org>
Date: Fri Mar 8 14:47:35 2019 +0100

perf data: Support having perf.data stored as a directory


Maybe better to drop it.

--
Thomas

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