1 /*****************************************************************************
2 * linux_specific.c: Linux-specific initialization
3 *****************************************************************************
4 * Copyright © 2008 Rémi Denis-Courmont
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
19 *****************************************************************************/
28 #include <vlc_common.h>
29 #include "../libvlc.h"
31 static const char default_path[] = PKGLIBDIR;
33 static void set_libvlc_path (void)
35 /* Find the path to libvlc (i.e. ourselves) */
36 FILE *maps = fopen ("/proc/self/maps", "rt");
42 uintptr_t needle = (uintptr_t)set_libvlc_path;
46 ssize_t len = getline (&line, &linelen, maps);
51 if (sscanf (line, "%p-%p", &start, &end) < 2)
53 if (needle < (uintptr_t)start || (uintptr_t)end <= needle)
55 char *dir = strchr (line, '/');
58 char *file = strrchr (line, '/');
62 if (asprintf (&psz_vlcpath, "%s/"PACKAGE, dir) == -1)
71 psz_vlcpath = (char *)default_path; /* default, cannot fail */
74 static void unset_libvlc_path (void)
76 if (psz_vlcpath != default_path)
84 } once = { VLC_STATIC_MUTEX, 0 };
87 # include <gnu/libc-version.h>
91 void system_Init (libvlc_int_t *libvlc, int *argc, const char *argv[])
94 const char *glcv = gnu_get_libc_version ();
96 /* gettext in glibc 2.5-2.7 is not thread-safe. LibVLC keeps crashing,
97 * especially in sterror_r(). Even if we have NLS disabled, the calling
98 * process might have called setlocale(). */
99 if (strverscmp (glcv, "2.5") >= 0 && strverscmp (glcv, "2.8") < 0)
101 fputs ("LibVLC has detected an unusable buggy GNU/libc version.\n"
102 "Please update to version 2.8 or newer.\n", stderr);
104 #ifndef DISABLE_BUGGY_GLIBC_CHECK
110 vlc_mutex_lock (&once.lock);
111 if (once.refs++ == 0)
113 vlc_mutex_unlock (&once.lock);
115 (void)libvlc; (void)argc; (void)argv;
118 void system_Configure (libvlc_int_t *libvlc,
119 int argc, const char *const argv[])
121 (void)libvlc; (void)argc; (void)argv;
124 void system_End (libvlc_int_t *libvlc)
126 vlc_mutex_lock (&once.lock);
127 if (--once.refs == 0)
128 unset_libvlc_path ();
129 vlc_mutex_unlock (&once.lock);