diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/syscalls/linux/exceptions.cc | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/test/syscalls/linux/exceptions.cc b/test/syscalls/linux/exceptions.cc index 0da4c817d..370e85166 100644 --- a/test/syscalls/linux/exceptions.cc +++ b/test/syscalls/linux/exceptions.cc @@ -56,6 +56,26 @@ void inline Int3Normal() { asm(".byte 0xcd, 0x03\r\n"); } void inline Int3Compact() { asm(".byte 0xcc\r\n"); } +void InIOHelper(int width, int value) { + EXPECT_EXIT( + { + switch (width) { + case 1: + asm volatile("inb %%dx, %%al" ::"d"(value) : "%eax"); + break; + case 2: + asm volatile("inw %%dx, %%ax" ::"d"(value) : "%eax"); + break; + case 4: + asm volatile("inl %%dx, %%eax" ::"d"(value) : "%eax"); + break; + default: + FAIL() << "invalid input width, only 1, 2 or 4 is allowed"; + } + }, + ::testing::KilledBySignal(SIGSEGV), ""); +} + TEST(ExceptionTest, Halt) { // In order to prevent the regular handler from messing with things (and // perhaps refaulting until some other signal occurs), we reset the handler to @@ -87,6 +107,20 @@ TEST(ExceptionTest, DivideByZero) { ::testing::KilledBySignal(SIGFPE), ""); } +TEST(ExceptionTest, IOAccessFault) { + // See above. + struct sigaction sa = {}; + sa.sa_handler = SIG_DFL; + auto const cleanup = ASSERT_NO_ERRNO_AND_VALUE(ScopedSigaction(SIGSEGV, sa)); + + InIOHelper(1, 0x0); + InIOHelper(2, 0x7); + InIOHelper(4, 0x6); + InIOHelper(1, 0xffff); + InIOHelper(2, 0xffff); + InIOHelper(4, 0xfffd); +} + TEST(ExceptionTest, Alignment) { SetAlignmentCheck(); ClearAlignmentCheck(); |