lobo/isync
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crash handler that launches gdb. activated when started with -D option.

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simplifies debugging crashes during the reg-tests.
This commit is contained in:
Oswald Buddenhagen 2006-02-02 13:48:02 +00:00
parent bbc0a877c8
commit ab11737b33
1 changed files with 37 additions and 0 deletions
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37
src/main.c
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@ -26,6 +26,9 @@
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/wait.h>
int Pid; /* for maildir and imap */
char Hostname[256]; /* for maildir */
@ -79,6 +82,34 @@ PACKAGE " " VERSION " - mailbox synchronizer\n"
exit( code );
}
static void
crashHandler( int n )
{
int dpid;
char pbuf[10], pabuf[20];
close( 0 );
open( "/dev/tty", O_RDWR );
dup2( 0, 1 );
dup2( 0, 2 );
fprintf( stderr, "*** " EXE " caught signal %d. Starting debugger ...\n", n );
switch ((dpid = fork ())) {
case -1:
perror( "fork()" );
break;
case 0:
sprintf( pbuf, "%d", Pid );
sprintf( pabuf, "/proc/%d/exe", Pid );
execlp( "gdb", "gdb", pabuf, pbuf, (char *)0 );
perror( "execlp()" );
_exit( 1 );
default:
waitpid( dpid, 0, 0 );
break;
}
exit( 3 );
}
static int
matches( const char *t, const char *p )
{
@ -385,6 +416,12 @@ main( int argc, char **argv )
}
}
if (DFlags & DEBUG) {
signal( SIGSEGV, crashHandler );
signal( SIGBUS, crashHandler );
signal( SIGILL, crashHandler );
}
if (merge_ops( cops, ops ))
return 1;