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perf tools: Provide subcmd configuration at runtime

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Create init functions for exec_cmd.c and pager.c.  This allows their
configuration to be specified at runtime so they can be split out into a
separate library which can be used by other programs.  Their
configuration is stored in a shared subcmd_config struct.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/21f5f6b38da72c985a8dcfa185700d03e7eecd1d.1450193761.git.jpoimboe@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Josh Poimboeuf
2015-12-15 09:39:35 -06:00
committed by Arnaldo Carvalho de Melo
parent 24a88bdd05
commit 096d35585b
11 changed files with 67 additions and 12 deletions
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6
tools/perf/perf.c
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@@ -119,7 +119,7 @@ static void commit_pager_choice(void)
{
switch (use_pager) {
case 0:
setenv("PERF_PAGER", "cat", 1);
setenv(PERF_PAGER_ENVIRONMENT, "cat", 1);
break;
case 1:
/* setup_pager(); */
@@ -530,6 +530,10 @@ int main(int argc, const char **argv)
const char *cmd;
char sbuf[STRERR_BUFSIZE];
/* libsubcmd init */
exec_cmd_init("perf", PREFIX, PERF_EXEC_PATH, EXEC_PATH_ENVIRONMENT);
pager_init(PERF_PAGER_ENVIRONMENT);
/* The page_size is placed in util object. */
page_size = sysconf(_SC_PAGE_SIZE);
cacheline_size = sysconf(_SC_LEVEL1_DCACHE_LINESIZE);