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perf data: Support single perf.data file directory

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Support directory output that contains a regular perf.data file, named
"data". By default the directory is named perf.data i.e.
	perf.data
	└── data

Most of the infrastructure to support a directory is already there. This
patch makes the changes needed to support the format above.

Presently there is no 'perf record' option to output a directory.

This is preparation for adding support for putting a copy of /proc/kcore in
the directory.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lore.kernel.org/lkml/20191004083121.12182-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter
2019-10-04 11:31:20 +03:00
committed by Arnaldo Carvalho de Melo
parent 01e97a59ea
commit 46e201efa1
4 changed files with 43 additions and 2 deletions
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6
tools/perf/util/data.h
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@@ -10,6 +10,7 @@ enum perf_data_mode {
};
enum perf_dir_version {
PERF_DIR_SINGLE_FILE = 0,
PERF_DIR_VERSION = 1,
};
@@ -54,6 +55,11 @@ static inline bool perf_data__is_dir(struct perf_data *data)
return data->is_dir;
}
static inline bool perf_data__is_single_file(struct perf_data *data)
{
return data->dir.version == PERF_DIR_SINGLE_FILE;
}
static inline int perf_data__fd(struct perf_data *data)
{
return data->file.fd;