linux/tools/perf/ui/setup.c
Soramichi AKIYAMA d25ed5d9fa perf tools: Move two variables usied in libperf from perf.c
The use_browser and perf_version_string variables are both declared in
perf.c but they are also referenced by other functions of libperf.a.

Therefore a user linking an own main() with libperf.a must declare those
two variables in their files even if the files never use the browser or
the version information.

This patch fixes this issue by moving use_browser and
perf_version_string out of perf.c to some other files.

Signed-off-by: Soramichi Akiyama <akiyama@m.soramichi.jp>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20170117002237.c1aec0ce3b4d675dca018deb@m.soramichi.jp
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-01-17 11:36:45 -03:00

116 lines
2.1 KiB
C

#include <pthread.h>
#include <dlfcn.h>
#include "../util/cache.h"
#include "../util/debug.h"
#include "../util/hist.h"
pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER;
void *perf_gtk_handle;
int use_browser = -1;
#ifdef HAVE_GTK2_SUPPORT
static int setup_gtk_browser(void)
{
int (*perf_ui_init)(void);
if (perf_gtk_handle)
return 0;
perf_gtk_handle = dlopen(PERF_GTK_DSO, RTLD_LAZY);
if (perf_gtk_handle == NULL) {
char buf[PATH_MAX];
scnprintf(buf, sizeof(buf), "%s/%s", LIBDIR, PERF_GTK_DSO);
perf_gtk_handle = dlopen(buf, RTLD_LAZY);
}
if (perf_gtk_handle == NULL)
return -1;
perf_ui_init = dlsym(perf_gtk_handle, "perf_gtk__init");
if (perf_ui_init == NULL)
goto out_close;
if (perf_ui_init() == 0)
return 0;
out_close:
dlclose(perf_gtk_handle);
return -1;
}
static void exit_gtk_browser(bool wait_for_ok)
{
void (*perf_ui_exit)(bool);
if (perf_gtk_handle == NULL)
return;
perf_ui_exit = dlsym(perf_gtk_handle, "perf_gtk__exit");
if (perf_ui_exit == NULL)
goto out_close;
perf_ui_exit(wait_for_ok);
out_close:
dlclose(perf_gtk_handle);
perf_gtk_handle = NULL;
}
#else
static inline int setup_gtk_browser(void) { return -1; }
static inline void exit_gtk_browser(bool wait_for_ok __maybe_unused) {}
#endif
int stdio__config_color(const struct option *opt __maybe_unused,
const char *mode, int unset __maybe_unused)
{
perf_use_color_default = perf_config_colorbool("color.ui", mode, -1);
return 0;
}
void setup_browser(bool fallback_to_pager)
{
if (use_browser < 2 && (!isatty(1) || dump_trace))
use_browser = 0;
/* default to TUI */
if (use_browser < 0)
use_browser = 1;
switch (use_browser) {
case 2:
if (setup_gtk_browser() == 0)
break;
printf("GTK browser requested but could not find %s\n",
PERF_GTK_DSO);
sleep(1);
/* fall through */
case 1:
use_browser = 1;
if (ui__init() == 0)
break;
/* fall through */
default:
use_browser = 0;
if (fallback_to_pager)
setup_pager();
break;
}
}
void exit_browser(bool wait_for_ok)
{
switch (use_browser) {
case 2:
exit_gtk_browser(wait_for_ok);
break;
case 1:
ui__exit(wait_for_ok);
break;
default:
break;
}
}