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add support for automatic gdb launching when RC_DEBUG is defined to 1 to ease bug reporting / information gathering

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This commit is contained in:
Mike Frysinger 2008-03-22 23:02:30 +00:00
parent 7beafe361a
commit bd34df6361
2 changed files with 41 additions and 0 deletions
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1
src/rc/Makefile
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@ -33,6 +33,7 @@ CLEANFILES+= ${ALL_LINKS}
LDFLAGS+= -L../librc -L../libeinfo
LDADD+= -lutil -lrc -leinfo
#CFLAGS+= -ggdb
CPPFLAGS+= $(shell test "x$(DEBUG)" = x && echo -DRC_DEBUG=0 || echo -DRC_DEBUG=1)
LDFLAGS+= $(shell test -d ../../.git && echo -Wl,--rpath=../librc -Wl,--rpath=../libeinfo)
MK= ../../mk

40
src/rc/rc.c
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@ -898,6 +898,44 @@ interactive_option:
}
static void catch_a_baddie(int sig)
{
pid_t crashed_pid = getpid();
switch (fork()) {
case -1: _exit(sig);
case 0: {
char pid[10];
sprintf(pid, "%i", crashed_pid);
printf("\nAuto launching gdb!\n\n");
_exit(execlp("gdb", "gdb", "--quiet", "--pid", pid, "-ex", "bt full", NULL));
}
default: {
int status;
wait(&status);
}
}
_exit(1);
}
static void init_bad_signals(void)
{
struct sigaction sa;
sigset_t full;
if (!RC_DEBUG)
return;
memset(&sa, 0, sizeof(sa));
sa.sa_handler = catch_a_baddie;
sigfillset(&full);
sa.sa_mask = full;
sigaction(SIGBUS, &sa, NULL);
sigaction(SIGILL, &sa, NULL);
sigaction(SIGSEGV, &sa, NULL);
}
#include "_usage.h"
#define getoptstring "o:" getoptstring_COMMON
static const struct option longopts[] = {
@ -932,6 +970,8 @@ int main(int argc, char **argv)
char *token;
#endif
init_bad_signals();
applet = basename_c(argv[0]);
LIST_INIT(&service_pids);
atexit(cleanup);