| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Test sigreturn to an unaligned address, ie. low 2 bits set. |
| * Nothing bad should happen. |
| * This was able to trigger warnings with CONFIG_PPC_RFI_SRR_DEBUG=y. |
| */ |
| |
| #include <signal.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <ucontext.h> |
| #include <unistd.h> |
| |
| #include "utils.h" |
| |
| |
| static void sigusr1_handler(int signo, siginfo_t *info, void *ptr) |
| { |
| ucontext_t *uc = ptr; |
| |
| UCONTEXT_NIA(uc) |= 3; |
| } |
| |
| static int test_sigreturn_unaligned(void) |
| { |
| struct sigaction action; |
| |
| memset(&action, 0, sizeof(action)); |
| action.sa_sigaction = sigusr1_handler; |
| action.sa_flags = SA_SIGINFO; |
| |
| FAIL_IF(sigaction(SIGUSR1, &action, NULL) == -1); |
| |
| raise(SIGUSR1); |
| |
| return 0; |
| } |
| |
| int main(void) |
| { |
| return test_harness(test_sigreturn_unaligned, "sigreturn_unaligned"); |
| } |
