Commit 79bbbabd authored Oct 13, 2020 by Arnaldo Carvalho de Melo

perf config: Export the perf_config_from_file() function



We'll use it to ask for extra config files to be loaded, profile like
stuff that will be used first to make 'perf trace' mimic 'strace' output
via a 'perf strace' command that just sets up 'perf trace' output.

At some point it'll be used for regression tests, where we'll run some
simple commands like:

  perf strace ls > perf-strace.output
  strace ls > strace.output

And then do some mutable syscall arg aware diff like tool to deal with
arguments for things like mmap, that change at each execution, to be
first ignored and then properly tracked when used accoss multiple
syscalls.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent 79373082

tools/perf/util/config.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -489,7 +489,7 @@ int perf_default_config(const char var, const char value,
		return 0;
		}

		static int perf_config_from_file(config_fn_t fn, const char filename, void data)
		int perf_config_from_file(config_fn_t fn, const char filename, void data)
		{
		int ret;
		FILE *f = fopen(filename, "r");

tools/perf/util/config.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -26,6 +26,8 @@ struct perf_config_set {
		extern const char *config_exclusive_filename;

		typedef int (config_fn_t)(const char , const char , void );

		int perf_config_from_file(config_fn_t fn, const char filename, void data);
		int perf_default_config(const char , const char , void *);
		int perf_config(config_fn_t fn, void *);
		int perf_config_int(int dest, const char , const char *);

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