cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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setup.c (2297B)

      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}