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Add support for dumping backtraces.

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This commit is contained in:
Adam Olsen 2001-08-23 23:34:38 +00:00
parent 79be73f507
commit bd847e73f1
2 changed files with 35 additions and 1 deletions
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2
configure.ac
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@ -94,7 +94,7 @@ AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(
arpa/inet.h asm/io.h assert.h conio.h ctype.h ddraw.h dinput.h \
direct.h dirent.h dlfcn.h dmedia/audio.h dmedia/cdaudio.h dpmi.h \
dsound.h errno.h fcntl.h fnmatch.h glide/sst1vid.h io.h \
dsound.h errno.h execinfo.h fcntl.h fnmatch.h glide/sst1vid.h io.h \
libc.h limits.h linux/cdrom.h linux/joystick.h linux/soundcard.h \
machine/soundcard.h malloc.h math.h mgraph.h _mingw.h netdb.h \
netinet/in.h pwd.h rpc/types.h setjmp.h signal.h stdarg.h stdio.h \

34
libs/video/targets/context_x11.c
View file

@ -40,6 +40,10 @@
# include <unistd.h>
#endif
#ifdef HAVE_EXECINFO_H
# include <execinfo.h>
#endif
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
@ -101,6 +105,7 @@ cvar_t *vid_system_gamma;
qboolean vid_fullscreen_active;
static qboolean vid_context_created = false;
cvar_t *sys_backtrace;
cvar_t *sys_dump_core;
static int xss_timeout;
@ -117,6 +122,15 @@ dump_core_callback (cvar_t *sys_dump_core)
#endif
}
void
backtrace_callback (cvar_t *sys_backtrace)
{
#ifndef HAVE_EXECINFO_H
if (sys_backtrace->int_val)
Con_Printf ("support for printing backtraces has not been compiled in!\n");
#endif
}
qboolean
X11_AddEvent (int event, void (*event_handler) (XEvent *))
{
@ -173,6 +187,23 @@ X11_ProcessEvents (void)
// ========================================================================
// Tragic death handler
// ========================================================================
void
dump_backtrace ()
{
#ifdef HAVE_EXECINFO_H
#define MAXDEPTH 30
static int count = 0; // don't wanna do this too many times
void *array[MAXDEPTH];
size_t size;
if (sys_backtrace && (count < sys_backtrace->int_val)) {
count++;
size = backtrace (array, MAXDEPTH);
fflush (stderr);
backtrace_symbols_fd (array, size, STDERR_FILENO);
}
#endif
}
static void
TragicDeath (int sig)
@ -181,6 +212,7 @@ TragicDeath (int sig)
if (sys_dump_core && sys_dump_core->int_val == 1) { // paranoid check that is NOT needed at time of writing (cvar init happens before rest of init)
if (fork()) {
printf ("Received signal %d, dumping core and exiting...\n", sig);
dump_backtrace ();
Sys_Quit ();
} else {
signal (SIGABRT, SIG_IGN); // is xlib setting a handler on us?
@ -189,6 +221,7 @@ TragicDeath (int sig)
} else {
#endif
printf ("Received signal %d, exiting...\n", sig);
dump_backtrace ();
Sys_Quit ();
abort(); // Hopefully not an infinite loop. // never reached
#ifdef HAVE_UNISTD_H
@ -368,6 +401,7 @@ X11_Init_Cvars (void)
vid_system_gamma = Cvar_Get ("vid_system_gamma", "1", CVAR_ARCHIVE, NULL,
"Use system gamma control if available");
sys_dump_core = Cvar_Get ("sys_dump_core", "0", CVAR_NONE, dump_core_callback, "Dump core on Tragic Death. Be sure to check 'ulimit -c'");
sys_backtrace = Cvar_Get ("sys_backtrace", "0", CVAR_NONE, backtrace_callback, "Dump a backtrace on Tragic Death. Value is the max number of times to dump core incase of recursive shutdown");
}
void