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am b2ec9cb2: am 46d0b81a: Merge "restore sigprocmask in setjmp/longjmp test."

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* commit 'b2ec9cb264ed1aadd1a2d938785d28ceb9fc16c4':
  restore sigprocmask in setjmp/longjmp test.
This commit is contained in:
Yabin Cui 2014-12-02 18:56:12 +00:00 committed by Android Git Automerger
commit de88381c19
2 changed files with 18 additions and 6 deletions
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16
tests/setjmp_test.cpp
View File

@ -74,7 +74,8 @@ TEST(setjmp, _setjmp_signal_mask) {
// _setjmp/_longjmp do not save/restore the signal mask. // _setjmp/_longjmp do not save/restore the signal mask.
sigset_t ss1(SigSetOf(SIGUSR1)); sigset_t ss1(SigSetOf(SIGUSR1));
sigset_t ss2(SigSetOf(SIGUSR2)); sigset_t ss2(SigSetOf(SIGUSR2));
sigprocmask(SIG_SETMASK, &ss1, NULL); sigset_t original_set;
sigprocmask(SIG_SETMASK, &ss1, &original_set);
jmp_buf jb; jmp_buf jb;
if (_setjmp(jb) == 0) { if (_setjmp(jb) == 0) {
sigprocmask(SIG_SETMASK, &ss2, NULL); sigprocmask(SIG_SETMASK, &ss2, NULL);
@ -85,6 +86,7 @@ TEST(setjmp, _setjmp_signal_mask) {
sigprocmask(SIG_SETMASK, NULL, &ss); sigprocmask(SIG_SETMASK, NULL, &ss);
EXPECT_TRUE(sigismember(&ss, SIGUSR2)); EXPECT_TRUE(sigismember(&ss, SIGUSR2));
} }
sigprocmask(SIG_SETMASK, &original_set, NULL);
} }
TEST(setjmp, setjmp_signal_mask) { TEST(setjmp, setjmp_signal_mask) {
@ -93,7 +95,8 @@ TEST(setjmp, setjmp_signal_mask) {
// behavior unspecified, so any code that cares needs to use sigsetjmp. // behavior unspecified, so any code that cares needs to use sigsetjmp.
sigset_t ss1(SigSetOf(SIGUSR1)); sigset_t ss1(SigSetOf(SIGUSR1));
sigset_t ss2(SigSetOf(SIGUSR2)); sigset_t ss2(SigSetOf(SIGUSR2));
sigprocmask(SIG_SETMASK, &ss1, NULL); sigset_t original_set;
sigprocmask(SIG_SETMASK, &ss1, &original_set);
jmp_buf jb; jmp_buf jb;
if (setjmp(jb) == 0) { if (setjmp(jb) == 0) {
sigprocmask(SIG_SETMASK, &ss2, NULL); sigprocmask(SIG_SETMASK, &ss2, NULL);
@ -110,13 +113,15 @@ TEST(setjmp, setjmp_signal_mask) {
EXPECT_TRUE(sigismember(&ss, SIGUSR2)); EXPECT_TRUE(sigismember(&ss, SIGUSR2));
#endif #endif
} }
sigprocmask(SIG_SETMASK, &original_set, NULL);
} }
TEST(setjmp, sigsetjmp_0_signal_mask) { TEST(setjmp, sigsetjmp_0_signal_mask) {
// sigsetjmp(0)/siglongjmp do not save/restore the signal mask. // sigsetjmp(0)/siglongjmp do not save/restore the signal mask.
sigset_t ss1(SigSetOf(SIGUSR1)); sigset_t ss1(SigSetOf(SIGUSR1));
sigset_t ss2(SigSetOf(SIGUSR2)); sigset_t ss2(SigSetOf(SIGUSR2));
sigprocmask(SIG_SETMASK, &ss1, NULL); sigset_t original_set;
sigprocmask(SIG_SETMASK, &ss1, &original_set);
sigjmp_buf sjb; sigjmp_buf sjb;
if (sigsetjmp(sjb, 0) == 0) { if (sigsetjmp(sjb, 0) == 0) {
sigprocmask(SIG_SETMASK, &ss2, NULL); sigprocmask(SIG_SETMASK, &ss2, NULL);
@ -127,13 +132,15 @@ TEST(setjmp, sigsetjmp_0_signal_mask) {
sigprocmask(SIG_SETMASK, NULL, &ss); sigprocmask(SIG_SETMASK, NULL, &ss);
EXPECT_TRUE(sigismember(&ss, SIGUSR2)); EXPECT_TRUE(sigismember(&ss, SIGUSR2));
} }
sigprocmask(SIG_SETMASK, &original_set, NULL);
} }
TEST(setjmp, sigsetjmp_1_signal_mask) { TEST(setjmp, sigsetjmp_1_signal_mask) {
// sigsetjmp(1)/siglongjmp does save/restore the signal mask. // sigsetjmp(1)/siglongjmp does save/restore the signal mask.
sigset_t ss1(SigSetOf(SIGUSR1)); sigset_t ss1(SigSetOf(SIGUSR1));
sigset_t ss2(SigSetOf(SIGUSR2)); sigset_t ss2(SigSetOf(SIGUSR2));
sigprocmask(SIG_SETMASK, &ss1, NULL); sigset_t original_set;
sigprocmask(SIG_SETMASK, &ss1, &original_set);
sigjmp_buf sjb; sigjmp_buf sjb;
if (sigsetjmp(sjb, 1) == 0) { if (sigsetjmp(sjb, 1) == 0) {
sigprocmask(SIG_SETMASK, &ss2, NULL); sigprocmask(SIG_SETMASK, &ss2, NULL);
@ -144,4 +151,5 @@ TEST(setjmp, sigsetjmp_1_signal_mask) {
sigprocmask(SIG_SETMASK, NULL, &ss); sigprocmask(SIG_SETMASK, NULL, &ss);
EXPECT_TRUE(sigismember(&ss, SIGUSR1)); EXPECT_TRUE(sigismember(&ss, SIGUSR1));
} }
sigprocmask(SIG_SETMASK, &original_set, NULL);
} }

8
tests/stack_unwinding_test.cpp
View File

@ -73,6 +73,7 @@ TEST(stack_unwinding, easy) {
ASSERT_EQ(count + 1, deeper_count); ASSERT_EQ(count + 1, deeper_count);
} }
static volatile bool signal_handler_run = false;
static int killer_count = 0; static int killer_count = 0;
static int handler_count = 0; static int handler_count = 0;
static int handler_one_deeper_count = 0; static int handler_one_deeper_count = 0;
@ -83,6 +84,7 @@ static void noinline UnwindSignalHandler(int) {
handler_one_deeper_count = unwind_one_frame_deeper(); handler_one_deeper_count = unwind_one_frame_deeper();
ASSERT_EQ(handler_count + 1, handler_one_deeper_count); ASSERT_EQ(handler_count + 1, handler_one_deeper_count);
signal_handler_run = true;
} }
TEST(stack_unwinding, unwind_through_signal_frame) { TEST(stack_unwinding, unwind_through_signal_frame) {
@ -90,8 +92,9 @@ TEST(stack_unwinding, unwind_through_signal_frame) {
ScopedSignalHandler ssh(SIGUSR1, UnwindSignalHandler); ScopedSignalHandler ssh(SIGUSR1, UnwindSignalHandler);
_Unwind_Backtrace(FrameCounter, &killer_count); _Unwind_Backtrace(FrameCounter, &killer_count);
signal_handler_run = false;
ASSERT_EQ(0, kill(getpid(), SIGUSR1)); ASSERT_EQ(0, kill(getpid(), SIGUSR1));
while (!signal_handler_run) {}
} }
// On LP32, the SA_SIGINFO flag gets you __restore_rt instead of __restore. // On LP32, the SA_SIGINFO flag gets you __restore_rt instead of __restore.
@ -100,6 +103,7 @@ TEST(stack_unwinding, unwind_through_signal_frame_SA_SIGINFO) {
ScopedSignalHandler ssh(SIGUSR1, UnwindSignalHandler, SA_SIGINFO); ScopedSignalHandler ssh(SIGUSR1, UnwindSignalHandler, SA_SIGINFO);
_Unwind_Backtrace(FrameCounter, &killer_count); _Unwind_Backtrace(FrameCounter, &killer_count);
signal_handler_run = false;
ASSERT_EQ(0, kill(getpid(), SIGUSR1)); ASSERT_EQ(0, kill(getpid(), SIGUSR1));
while (!signal_handler_run) {}
} }