perf tools: Provide subcmd configuration at runtime
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>
diff --git a/tools/perf/util/pager.c b/tools/perf/util/pager.c
index 7dcbef6..d5ef62e 100644
--- a/tools/perf/util/pager.c
+++ b/tools/perf/util/pager.c
@@ -1,6 +1,7 @@
#include "cache.h"
#include "run-command.h"
#include "sigchain.h"
+#include "subcmd-config.h"
/*
* This is split up from the rest of git so that we can do
@@ -9,6 +10,11 @@
static int spawned_pager;
+void pager_init(const char *pager_env)
+{
+ subcmd_config.pager_env = pager_env;
+}
+
static void pager_preexec(void)
{
/*
@@ -46,7 +52,7 @@
void setup_pager(void)
{
- const char *pager = getenv("PERF_PAGER");
+ const char *pager = getenv(subcmd_config.pager_env);
if (!isatty(1))
return;