xref: /kernel/linux/linux-5.10/tools/perf/ui/setup.c (revision 8c2ecf20)
1// SPDX-License-Identifier: GPL-2.0
2#include <pthread.h>
3#include <dlfcn.h>
4#include <unistd.h>
5
6#include <subcmd/pager.h>
7#include "../util/debug.h"
8#include "../util/hist.h"
9#include "ui.h"
10
11pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER;
12void *perf_gtk_handle;
13int use_browser = -1;
14
15#define PERF_GTK_DSO "libperf-gtk.so"
16
17#ifdef HAVE_GTK2_SUPPORT
18
19static int setup_gtk_browser(void)
20{
21	int (*perf_ui_init)(void);
22
23	if (perf_gtk_handle)
24		return 0;
25
26	perf_gtk_handle = dlopen(PERF_GTK_DSO, RTLD_LAZY);
27	if (perf_gtk_handle == NULL) {
28		char buf[PATH_MAX];
29		scnprintf(buf, sizeof(buf), "%s/%s", LIBDIR, PERF_GTK_DSO);
30		perf_gtk_handle = dlopen(buf, RTLD_LAZY);
31	}
32	if (perf_gtk_handle == NULL)
33		return -1;
34
35	perf_ui_init = dlsym(perf_gtk_handle, "perf_gtk__init");
36	if (perf_ui_init == NULL)
37		goto out_close;
38
39	if (perf_ui_init() == 0)
40		return 0;
41
42out_close:
43	dlclose(perf_gtk_handle);
44	return -1;
45}
46
47static void exit_gtk_browser(bool wait_for_ok)
48{
49	void (*perf_ui_exit)(bool);
50
51	if (perf_gtk_handle == NULL)
52		return;
53
54	perf_ui_exit = dlsym(perf_gtk_handle, "perf_gtk__exit");
55	if (perf_ui_exit == NULL)
56		goto out_close;
57
58	perf_ui_exit(wait_for_ok);
59
60out_close:
61	dlclose(perf_gtk_handle);
62
63	perf_gtk_handle = NULL;
64}
65#else
66static inline int setup_gtk_browser(void) { return -1; }
67static inline void exit_gtk_browser(bool wait_for_ok __maybe_unused) {}
68#endif
69
70int stdio__config_color(const struct option *opt __maybe_unused,
71			const char *mode, int unset __maybe_unused)
72{
73	perf_use_color_default = perf_config_colorbool("color.ui", mode, -1);
74	return 0;
75}
76
77void setup_browser(bool fallback_to_pager)
78{
79	if (use_browser < 2 && (!isatty(1) || dump_trace))
80		use_browser = 0;
81
82	/* default to TUI */
83	if (use_browser < 0)
84		use_browser = 1;
85
86	switch (use_browser) {
87	case 2:
88		if (setup_gtk_browser() == 0)
89			break;
90		printf("GTK browser requested but could not find %s\n",
91		       PERF_GTK_DSO);
92		sleep(1);
93		use_browser = 1;
94		/* fall through */
95	case 1:
96		if (ui__init() == 0)
97			break;
98		/* fall through */
99	default:
100		use_browser = 0;
101		if (fallback_to_pager)
102			setup_pager();
103		break;
104	}
105}
106
107void exit_browser(bool wait_for_ok)
108{
109	switch (use_browser) {
110	case 2:
111		exit_gtk_browser(wait_for_ok);
112		break;
113
114	case 1:
115		ui__exit(wait_for_ok);
116		break;
117
118	default:
119		break;
120	}
121}
122