Until the previous commit, WIFSIGNALED() was true for status 0, which is what waitpid() reports for a child that exits with 0. nolibc-test did not notice, because its only use of WIFSIGNALED(), in the abort test, also checks WTERMSIG().
Add tests for WEXITSTATUS(), WIFEXITED(), WIFSIGNALED() and WTERMSIG(), on the statuses the kernel reports for an exit with 0 or 0x12, a kill by SIGKILL, a SIGSEGV with the core dump flag, and a stop by SIGSTOP. Assisted-by: LLM Signed-off-by: Danish Khateeb <[email protected]> --- tools/testing/selftests/nolibc/nolibc-test.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c index f62183a46205..8985aa1ba96a 100644 --- a/tools/testing/selftests/nolibc/nolibc-test.c +++ b/tools/testing/selftests/nolibc/nolibc-test.c @@ -2038,6 +2038,14 @@ int run_stdlib(int min, int max) CASE_TEST(htole32); EXPECT_EQ(1, htole32(is_le ? 0x01234567 : 0x67452301), 0x01234567); break; CASE_TEST(htobe64); EXPECT_EQ(1, htobe64(is_le ? 0x0123456789000000 : 0x8967452301), 0x8967452301); break; CASE_TEST(htole64); EXPECT_EQ(1, htole64(is_le ? 0x0123456789 : 0x8967452301000000), 0x0123456789); break; + CASE_TEST(wexitstatus); EXPECT_EQ(1, WEXITSTATUS(0x1200), 0x12); break; + CASE_TEST(wifexited_exit0); EXPECT_NZ(1, WIFEXITED(0)); break; + CASE_TEST(wifexited_signal); EXPECT_ZR(1, WIFEXITED(SIGKILL)); break; + CASE_TEST(wifsignaled_exit0); EXPECT_ZR(1, WIFSIGNALED(0)); break; + CASE_TEST(wifsignaled_exit); EXPECT_ZR(1, WIFSIGNALED(0x1200)); break; + CASE_TEST(wifsignaled_signal); EXPECT_NZ(1, WIFSIGNALED(SIGKILL)); break; + CASE_TEST(wifsignaled_stopped); EXPECT_ZR(1, WIFSIGNALED((SIGSTOP << 8) | 0x7f)); break; + CASE_TEST(wtermsig_core); EXPECT_EQ(1, WTERMSIG(0x80 | SIGSEGV), SIGSEGV); break; case __LINE__: return ret; /* must be last */ -- 2.55.0
