tools/perf/ui/setup.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <pthread.h>
   3 #include <dlfcn.h>
   4
   5 #include "../util/cache.h"
   6 #include "../util/debug.h"
   7 #include "../util/hist.h"
   8 #include "../util/util.h"
   9
  10 pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER;
  11 void *perf_gtk_handle;
  12 int use_browser = -1;
  13
  14 #define PERF_GTK_DSO "libperf-gtk.so"
  15
  16 #ifdef HAVE_GTK2_SUPPORT
  17
  18 static int setup_gtk_browser(void)
  19 {
  20         int (*perf_ui_init)(void);
  21
  22         if (perf_gtk_handle)
  23                 return 0;
  24
  25         perf_gtk_handle = dlopen(PERF_GTK_DSO, RTLD_LAZY);
  26         if (perf_gtk_handle == NULL) {
  27                 char buf[PATH_MAX];
  28                 scnprintf(buf, sizeof(buf), "%s/%s", LIBDIR, PERF_GTK_DSO);
  29                 perf_gtk_handle = dlopen(buf, RTLD_LAZY);
  30         }
  31         if (perf_gtk_handle == NULL)
  32                 return -1;
  33
  34         perf_ui_init = dlsym(perf_gtk_handle, "perf_gtk__init");
  35         if (perf_ui_init == NULL)
  36                 goto out_close;
  37
  38         if (perf_ui_init() == 0)
  39                 return 0;
  40
  41 out_close:
  42         dlclose(perf_gtk_handle);
  43         return -1;
  44 }
  45
  46 static void exit_gtk_browser(bool wait_for_ok)
  47 {
  48         void (*perf_ui_exit)(bool);
  49
  50         if (perf_gtk_handle == NULL)
  51                 return;
  52
  53         perf_ui_exit = dlsym(perf_gtk_handle, "perf_gtk__exit");
  54         if (perf_ui_exit == NULL)
  55                 goto out_close;
  56
  57         perf_ui_exit(wait_for_ok);
  58
  59 out_close:
  60         dlclose(perf_gtk_handle);
  61
  62         perf_gtk_handle = NULL;
  63 }
  64 #else
  65 static inline int setup_gtk_browser(void) { return -1; }
  66 static inline void exit_gtk_browser(bool wait_for_ok __maybe_unused) {}
  67 #endif
  68
  69 int stdio__config_color(const struct option *opt __maybe_unused,
  70                         const char *mode, int unset __maybe_unused)
  71 {
  72         perf_use_color_default = perf_config_colorbool("color.ui", mode, -1);
  73         return 0;
  74 }
  75
  76 void setup_browser(bool fallback_to_pager)
  77 {
  78         if (use_browser < 2 && (!isatty(1) || dump_trace))
  79                 use_browser = 0;
  80
  81         /* default to TUI */
  82         if (use_browser < 0)
  83                 use_browser = 1;
  84
  85         switch (use_browser) {
  86         case 2:
  87                 if (setup_gtk_browser() == 0)
  88                         break;
  89                 printf("GTK browser requested but could not find %s\n",
  90                        PERF_GTK_DSO);
  91                 sleep(1);
  92                 /* fall through */
  93         case 1:
  94                 use_browser = 1;
  95                 if (ui__init() == 0)
  96                         break;
  97                 /* fall through */
  98         default:
  99                 use_browser = 0;
 100                 if (fallback_to_pager)
 101                         setup_pager();
 102                 break;
 103         }
 104 }
 105
 106 void exit_browser(bool wait_for_ok)
 107 {
 108         switch (use_browser) {
 109         case 2:
 110                 exit_gtk_browser(wait_for_ok);
 111                 break;
 112
 113         case 1:
 114                 ui__exit(wait_for_ok);
 115                 break;
 116
 117         default:
 118                 break;
 119         }
 120 }