Author: post
Date: 2010-03-29 20:28:13 +0200 (Mon, 29 Mar 2010)
New Revision: 3276
Modified:
trunk/src/application.c
Log:
Add internal backtrace and register print on crash.
Modified: trunk/src/application.c
===================================================================
--- trunk/src/application.c 2010-03-28 19:48:07 UTC (rev 3275)
+++ trunk/src/application.c 2010-03-29 18:28:13 UTC (rev 3276)
@@ -28,6 +28,12 @@
#ifndef WIN32
#include <gconf/gconf-client.h>
#endif
+#if defined(__GNUC__) && (defined (__x86_64__) || defined (__i386__))
+#include <execinfo.h>
+#include <signal.h>
+#define __USE_GNU
+#include <ucontext.h>
+#endif
#include "application.h"
#include "gtk-interface.h"
#include "gtk-helper.h"
@@ -599,7 +605,106 @@
g_static_rec_mutex_unlock (&gdk_lock);
}
+#if defined(__GNUC__) && (defined (__x86_64__) || defined (__i386__))
+#if defined (__x86_64__)
+#define PROG_COUNTER_REG REG_RIP
+#else
+#define PROG_COUNTER_REG REG_EIP
+#endif
+
+void segfault_sigaction(int signal, siginfo_t *si, void *arg)
+{
+ ucontext_t *uc = (ucontext_t *)arg;
+ void* caller_address = (void *)
uc->uc_mcontext.gregs[PROG_COUNTER_REG];
+ if (signal == SIGSEGV)
+ printf("\nCaught SIGSEGV requesting address: %p from
%p\n\nBacktrace:\n", si->si_addr, caller_address);
+ else if (signal == SIGILL)
+ printf("\nCaught SIGILL at %p\n\nBacktrace:\n", caller_address);
+ void* tracePtrs[100];
+ int count = backtrace( tracePtrs, 100 );
+ tracePtrs[1] = caller_address;
+ char** funcNames = backtrace_symbols( tracePtrs, count );
+
+ int i;
+ /* Print the stack trace */
+ for( i = 1; i < count; i++ )
+ printf("[%d]: %s\n", i, funcNames[i] );
+
+ printf("\nRegisters:\n");
+
+#if defined (__x86_64__)
+ unsigned long val = uc->uc_mcontext.gregs[REG_RAX];
+ printf("[rax]: 0x%08x%08x | ", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_RBX];
+ printf("[rbx]: 0x%08x%08x\n", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_RCX];
+ printf("[rcx]: 0x%08x%08x | ", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_RDX];
+ printf("[rdx]: 0x%08x%08x\n", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_RSI];
+ printf("[rsi]: 0x%08x%08x | ", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_RDI];
+ printf("[rdi]: 0x%08x%08x\n", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_R8];
+ printf("[r08]: 0x%08x%08x | ", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_R9];
+ printf("[r09]: 0x%08x%08x\n", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_R10];
+ printf("[r10]: 0x%08x%08x | ", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_R11];
+ printf("[r11]: 0x%08x%08x\n", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_R12];
+ printf("[r12]: 0x%08x%08x | ", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_R13];
+ printf("[r13]: 0x%08x%08x\n", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_R14];
+ printf("[r14]: 0x%08x%08x | ", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_R15];
+ printf("[r15]: 0x%08x%08x\n", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_RSP];
+ printf("[rsp]: 0x%08x%08x | ", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_RIP];
+ printf("[rip]: 0x%08x%08x\n", (int)(val>>32), (int)(val&0xffffffff));
+
+ guint32 *mregs = (guint32*)uc->uc_mcontext.fpregs->_xmm;
+ for( i = 0; i < 8; i++) {
+ printf("xmm%02d: %08x %08x %08x %08x |", i*2,
mregs[i*2*4+3],mregs[i*2*4+2],mregs[i*2*4+1], mregs[i*2*4]);
+ printf("xmm%02d: %08x %08x %08x %08x\n", i*2+1,
mregs[i*2*4+3+4],mregs[i*2*4+2+4],mregs[i*2*4+1+4], mregs[i*2*4+4]);
+ }
+#endif
+
+#if defined (__i386__)
+ unsigned long val = uc->uc_mcontext.gregs[REG_EAX];
+ printf("[eax]: 0x%08x%08x | ", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_EBX];
+ printf("[ebx]: 0x%08x%08x\n", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_ECX];
+ printf("[ecx]: 0x%08x%08x | ", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_EDX];
+ printf("[edx]: 0x%08x%08x\n", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_ESI];
+ printf("[esi]: 0x%08x%08x | ", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_EDI];
+ printf("[edi]: 0x%08x%08x\n", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_ESP];
+ printf("[esp]: 0x%08x%08x | ", (int)(val>>32), (int)(val&0xffffffff));
+ val = uc->uc_mcontext.gregs[REG_EIP];
+ printf("[eip]: 0x%08x%08x\n", (int)(val>>32), (int)(val&0xffffffff));
+
+ guint32 *mregs = (guint32*)uc->uc_mcontext.fpregs->_xmm;
+ for( i = 0; i < 8; i++) {
+ printf("xmm%02d: %08x %08x %08x %08x |", i*2,
mregs[i*2*4+3],mregs[i*2*4+2],mregs[i*2*4+1], mregs[i*2*4]);
+ printf("xmm%02d: %08x %08x %08x %08x\n", i*2+1,
mregs[i*2*4+3+4],mregs[i*2*4+2+4],mregs[i*2*4+1+4], mregs[i*2*4+4]);
+ }
+#endif
+ printf("\nPlease file a bugreport at http://bugzilla.rawstudio.org/
including the information above, thanks!\n");
+ /* Free the string pointers */
+ free( funcNames );
+ exit(0);
+}
+#endif
+
int
main(int argc, char **argv)
{
@@ -608,6 +713,17 @@
gboolean do_test = FALSE;
int opt;
gboolean use_system_theme = DEFAULT_CONF_USE_SYSTEM_THEME;
+#if defined(__GNUC__) && (defined (__x86_64__) || defined (__i386__))
+ struct sigaction sa;
+ memset(&sa, 0, sizeof(sigaction));
+ sigemptyset(&sa.sa_mask);
+ sa.sa_sigaction = segfault_sigaction;
+ sa.sa_flags = SA_SIGINFO;
+
+ sigaction(SIGSEGV, &sa, NULL);
+ sigaction(SIGILL, &sa, NULL);
+#endif
+
#ifndef WIN32
GConfClient *client;
#endif
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