diff options
Diffstat (limited to 'stdlib/stdlib.c')
| -rw-r--r-- | stdlib/stdlib.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/stdlib/stdlib.c b/stdlib/stdlib.c index 5dac3d3a..0e72dfc4 100644 --- a/stdlib/stdlib.c +++ b/stdlib/stdlib.c @@ -27,6 +27,18 @@ public bool USE_COLOR; +static void signal_handler(int sig, siginfo_t *, void *) +{ + assert(sig == SIGILL); + fflush(stdout); + if (USE_COLOR) fputs("\x1b[31;7m ===== ILLEGAL INSTRUCTION ===== \n\n\x1b[m", stderr); + else fputs("===== ILLEGAL INSTRUCTION =====\n\n", stderr); + print_stack_trace(stderr, 3, 4); + fflush(stderr); + raise(SIGABRT); + _exit(1); +} + public void tomo_init(void) { GC_INIT(); @@ -44,6 +56,12 @@ public void tomo_init(void) if (register_printf_specifier('k', printf_text, printf_text_size)) errx(1, "Couldn't set printf specifier"); + + struct sigaction sigact; + sigact.sa_sigaction = signal_handler; + sigemptyset(&sigact.sa_mask); + sigact.sa_flags = 0; + sigaction(SIGILL, &sigact, (struct sigaction *)NULL); } static bool parse_single_arg(const TypeInfo_t *info, char *arg, void *dest) |