CVS commit by ossi:
crash handler that launches gdb. activated when started with -D option.
simplifies debugging crashes during the reg-tests.
M +37 -0 main.c 1.52
--- isync/src/main.c #1.51:1.52
@@ -27,4 +27,7 @@
#include <unistd.h>
#include <string.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <sys/wait.h>
int Pid; /* for maildir and imap */
@@ -80,4 +83,32 @@ PACKAGE " " VERSION " - mailbox synchron
}
+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 )
@@ -386,4 +417,10 @@ main( int argc, char **argv )
}
+ if (DFlags & DEBUG) {
+ signal( SIGSEGV, crashHandler );
+ signal( SIGBUS, crashHandler );
+ signal( SIGILL, crashHandler );
+ }
+
if (merge_ops( cops, ops ))
return 1;
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