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e21e183059
xserver-multidpi/os
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Marcin Slusarz e21e183059 os: use libunwind to generate backtraces 
Libunwind generates backtraces much more reliably than glibc's "backtrace".

Before:
0: /opt/xserver/bin/X (0x400000+0x18ce36) [0x58ce36]
1: /opt/xserver/bin/X (xorg_backtrace+0x9) [0x58d119]
2: /opt/xserver/bin/X (0x400000+0x190d69) [0x590d69]
3: /lib64/libpthread.so.0 (0x7fb904268000+0x10a90) [0x7fb904278a90]
4: /lib64/libc.so.6 (ioctl+0x7) [0x7fb902fbf987]
5: /usr/lib64/libdrm.so.2 (drmIoctl+0x28) [0x7fb90405ffa8]
6: /usr/lib64/libdrm.so.2 (drmCommandWrite+0x1b) [0x7fb90406235b]
7: /usr/lib64/libdrm_nouveau.so.2 (nouveau_bo_wait+0x89) [0x7fb902009719]
8: /opt/xserver/lib/xorg/modules/drivers/nouveau_drv.so (0x7fb90220e000+0x76f3) [0x7fb9022156f3]
9: /opt/xserver/lib/xorg/modules/libexa.so (0x7fb9019c7000+0xbae0) [0x7fb9019d2ae0]
10: /opt/xserver/bin/X (0x400000+0x17d2b3) [0x57d2b3]
11: /opt/xserver/bin/X (0x400000+0xc9930) [0x4c9930]
12: /opt/xserver/bin/X (0x400000+0x3a81a) [0x43a81a]
13: /opt/xserver/bin/X (0x400000+0x3d6a1) [0x43d6a1]
14: /opt/xserver/bin/X (0x400000+0x2c2ca) [0x42c2ca]
15: /lib64/libc.so.6 (__libc_start_main+0xf5) [0x7fb902f019b5]
16: /opt/xserver/bin/X (0x400000+0x2c60d) [0x42c60d]
17: ?? [0x0]

After:
0: /opt/xserver/bin/X (OsSigHandler+0x39) [0x590d69]
1: /lib64/libpthread.so.0 (__restore_rt+0x0) [0x7fb904278a8f]
2: /lib64/libc.so.6 (ioctl+0x7) [0x7fb902fbf987]
3: /usr/lib64/libdrm.so.2 (drmIoctl+0x28) [0x7fb90405ffa8]
4: /usr/lib64/libdrm.so.2 (drmCommandWrite+0x1b) [0x7fb90406235b]
5: /usr/lib64/libdrm_nouveau.so.2 (nouveau_bo_wait+0x89) [0x7fb902009719]
6: /opt/xserver/lib/xorg/modules/drivers/nouveau_drv.so (nouveau_exa_download_from_screen+0x1a3) [0x7fb9022156f3]
7: /opt/xserver/lib/xorg/modules/libexa.so (exaGetImage+0x1f0) [0x7fb9019d2ae0]
8: /opt/xserver/bin/X (miSpriteGetImage+0x173) [0x57d2b3]
9: /opt/xserver/bin/X (compGetImage+0xb0) [0x4c9930]
10: /opt/xserver/bin/X (ProcGetImage+0x55a) [0x43a81a]
11: /opt/xserver/bin/X (Dispatch+0x341) [0x43d6a1]
12: /opt/xserver/bin/X (main+0x3ba) [0x42c2ca]
13: /lib64/libc.so.6 (__libc_start_main+0xf5) [0x7fb902f019b5]
14: /opt/xserver/bin/X (_start+0x29) [0x42c60d]
15: ? (?+0x29) [0x29]

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Knut Petersen <knut.petersen@t-online.de>
2013-02-26 07:59:53 +10:00
..
.gitignore dix and os: gitignore dix.O and os.O 2011-09-23 17:14:47 -07:00
access.c Fix formatting of address operators 2012-12-05 18:09:48 -06:00
auth.c Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
backtrace.c os: use libunwind to generate backtraces 2013-02-26 07:59:53 +10:00
client.c Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
connection.c os: Hide the Connection{In,Out}put implementation details 2012-09-20 14:40:18 -04:00
io.c os: Don't re-declare ConnectionInputPtr and ConnectionOutputPtr 2012-10-04 23:15:54 -07:00
log.c os: fix pnprintf OOB buffer read for unterminated length modifiers 2013-02-14 11:01:21 -08:00
Makefile.am os: use libunwind to generate backtraces 2013-02-26 07:59:53 +10:00
mitauth.c Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
oscolor.c Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
osdep.h os: Hide the Connection{In,Out}put implementation details 2012-09-20 14:40:18 -04:00
osinit.c os/osinit.c: no getpgrp() and setpgrp() on WIN32 2012-11-28 14:44:11 +00:00
rpcauth.c Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
strcasecmp.c Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
strcasestr.c Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
strlcat.c Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
strlcpy.c Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
strndup.c os: Ensure <dix-config.h> is included in strndup.c 2013-02-14 09:20:46 -08:00
utils.c os: Round fraction in pnprintf %f format 2013-02-08 08:57:43 -08:00
WaitFor.c os: make timers signal-safe 2012-05-01 11:36:35 +10:00
xdmauth.c Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
xdmcp.c Fix formatting of address operators 2012-12-05 18:09:48 -06:00
xprintf.c os/xprintf: add Xvscnprintf and Xscnprintf 2012-05-03 14:59:23 +10:00
xsha1.c os: Add libnettle as a choice of SHA1 implementation 2012-11-05 13:34:18 -06:00
xstrans.c Introduce a consistent coding style 2012-03-21 13:54:42 -07:00