diff options
| -rw-r--r-- | src/client/linux/handler/exception_handler_unittest.cc | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/client/linux/handler/exception_handler_unittest.cc b/src/client/linux/handler/exception_handler_unittest.cc index 27a7a777..0ba52163 100644 --- a/src/client/linux/handler/exception_handler_unittest.cc +++ b/src/client/linux/handler/exception_handler_unittest.cc @@ -54,6 +54,27 @@ using namespace google_breakpad; namespace { +// Flush the instruction cache for a given memory range. +// Only required on ARM. +void FlushInstructionCache(const char* memory, uint32_t memory_size) { +#if defined(__arm__) + long begin = reinterpret_cast<long>(memory); + long end = begin + static_cast<long>(memory_size); +# if defined(__ANDROID__) + // Provided by Android's <unistd.h> + cacheflush(begin, end, 0); +# elif defined(__linux__) + // GLibc/ARM doesn't provide a wrapper for it, do a direct syscall. +# ifndef __ARM_NR_cacheflush +# define __ARM_NR_cacheflush 0xf0002 +# endif + syscall(__ARM_NR_cacheflush, begin, end, 0); +# else +# error "Your operating system is not supported yet" +# endif +#endif +} + // Length of a formatted GUID string = // sizeof(MDGUID) * 2 + 4 (for dashes) + 1 (null terminator) const int kGUIDStringSize = 37; @@ -449,6 +470,7 @@ TEST(ExceptionHandlerTest, InstructionPointerMemory) { // of the block of memory, because the minidump should contain 128 // bytes on either side of the instruction pointer. memcpy(memory + kOffset, instructions, sizeof(instructions)); + FlushInstructionCache(memory, kMemorySize); // Now execute the instructions, which should crash. typedef void (*void_function)(void); @@ -541,6 +563,7 @@ TEST(ExceptionHandlerTest, InstructionPointerMemoryMinBound) { // of the block of memory, because the minidump should contain 128 // bytes on either side of the instruction pointer. memcpy(memory + kOffset, instructions, sizeof(instructions)); + FlushInstructionCache(memory, kMemorySize); // Now execute the instructions, which should crash. typedef void (*void_function)(void); @@ -632,6 +655,7 @@ TEST(ExceptionHandlerTest, InstructionPointerMemoryMaxBound) { // of the block of memory, because the minidump should contain 128 // bytes on either side of the instruction pointer. memcpy(memory + kOffset, instructions, sizeof(instructions)); + FlushInstructionCache(memory, kMemorySize); // Now execute the instructions, which should crash. typedef void (*void_function)(void); |