diff options
Diffstat (limited to 'tools/testing/selftests/kvm/lib/kvm_util.c')
| -rw-r--r-- | tools/testing/selftests/kvm/lib/kvm_util.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c index 203e33697492..5744643d9ec3 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util.c +++ b/tools/testing/selftests/kvm/lib/kvm_util.c @@ -2290,11 +2290,35 @@ __weak void kvm_selftest_arch_init(void) { } +static void report_unexpected_signal(int signum) +{ +#define KVM_CASE_SIGNUM(sig) \ + case sig: TEST_FAIL("Unexpected " #sig " (%d)\n", signum) + + switch (signum) { + KVM_CASE_SIGNUM(SIGBUS); + KVM_CASE_SIGNUM(SIGSEGV); + KVM_CASE_SIGNUM(SIGILL); + KVM_CASE_SIGNUM(SIGFPE); + default: + TEST_FAIL("Unexpected signal %d\n", signum); + } +} + void __attribute((constructor)) kvm_selftest_init(void) { + struct sigaction sig_sa = { + .sa_handler = report_unexpected_signal, + }; + /* Tell stdout not to buffer its content. */ setbuf(stdout, NULL); + sigaction(SIGBUS, &sig_sa, NULL); + sigaction(SIGSEGV, &sig_sa, NULL); + sigaction(SIGILL, &sig_sa, NULL); + sigaction(SIGFPE, &sig_sa, NULL); + guest_random_seed = last_guest_seed = random(); pr_info("Random seed: 0x%x\n", guest_random_seed); |