| 1 | /* |
| 2 | * Test attaching GDB to a running process. |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0-or-later |
| 5 | */ |
| 6 | #include <assert.h> |
| 7 | #include <signal.h> |
| 8 | #include <stdio.h> |
| 9 | #include <stdlib.h> |
| 10 | |
| 11 | static const char *phase = "start"; |
| 12 | |
| 13 | int main(void) |
| 14 | { |
| 15 | sigset_t set; |
| 16 | int sig; |
| 17 | |
| 18 | assert(sigfillset(&set) == 0); |
| 19 | assert(sigprocmask(SIG_BLOCK, &set, NULL) == 0); |
| 20 | |
| 21 | /* Let GDB know it can send SIGUSR1. */ |
| 22 | phase = "sigwait"; |
| 23 | if (getenv("LATE_ATTACH_PY")) { |
| 24 | assert(sigwait(&set, &sig) == 0); |
| 25 | if (sig != SIGUSR1) { |
| 26 | fprintf(stderr, "Unexpected signal %d\n", sig); |
| 27 | return EXIT_FAILURE; |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | /* Check that the guest does not see host_interrupt_signal. */ |
| 32 | assert(sigpending(&set) == 0); |
| 33 | for (sig = 1; sig < NSIG; sig++) { |
| 34 | if (sigismember(&set, sig)) { |
| 35 | fprintf(stderr, "Unexpected signal %d\n", sig); |
| 36 | return EXIT_FAILURE; |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | return EXIT_SUCCESS; |
| 41 | } |