diff options
Diffstat (limited to 'absl/debugging/symbolize_test.cc')
-rw-r--r-- | absl/debugging/symbolize_test.cc | 41 |
1 files changed, 35 insertions, 6 deletions
diff --git a/absl/debugging/symbolize_test.cc b/absl/debugging/symbolize_test.cc index 08068c30..a1d03aab 100644 --- a/absl/debugging/symbolize_test.cc +++ b/absl/debugging/symbolize_test.cc @@ -35,10 +35,29 @@ using testing::Contains; +#ifdef _WIN32 +#define ABSL_SYMBOLIZE_TEST_NOINLINE __declspec(noinline) +#else +#define ABSL_SYMBOLIZE_TEST_NOINLINE ABSL_ATTRIBUTE_NOINLINE +#endif + // Functions to symbolize. Use C linkage to avoid mangled names. extern "C" { -void nonstatic_func() { ABSL_BLOCK_TAIL_CALL_OPTIMIZATION(); } -static void static_func() { ABSL_BLOCK_TAIL_CALL_OPTIMIZATION(); } +ABSL_SYMBOLIZE_TEST_NOINLINE void nonstatic_func() { + // The next line makes this a unique function to prevent the compiler from + // folding identical functions together. + volatile int x = __LINE__; + static_cast<void>(x); + ABSL_BLOCK_TAIL_CALL_OPTIMIZATION(); +} + +ABSL_SYMBOLIZE_TEST_NOINLINE static void static_func() { + // The next line makes this a unique function to prevent the compiler from + // folding identical functions together. + volatile int x = __LINE__; + static_cast<void>(x); + ABSL_BLOCK_TAIL_CALL_OPTIMIZATION(); +} } // extern "C" struct Foo { @@ -46,7 +65,11 @@ struct Foo { }; // A C++ method that should have a mangled name. -void ABSL_ATTRIBUTE_NOINLINE Foo::func(int) { +ABSL_SYMBOLIZE_TEST_NOINLINE void Foo::func(int) { + // The next line makes this a unique function to prevent the compiler from + // folding identical functions together. + volatile int x = __LINE__; + static_cast<void>(x); ABSL_BLOCK_TAIL_CALL_OPTIMIZATION(); } @@ -80,6 +103,7 @@ static ABSL_PER_THREAD_TLS_KEYWORD char symbolize_test_thread_big[2 * 1024 * 1024]; #endif +#if !defined(__EMSCRIPTEN__) // Used below to hopefully inhibit some compiler/linker optimizations // that may remove kHpageTextPadding, kPadding0, and kPadding1 from // the binary. @@ -89,6 +113,7 @@ static volatile bool volatile_bool = false; static constexpr size_t kHpageSize = 1 << 21; const char kHpageTextPadding[kHpageSize * 4] ABSL_ATTRIBUTE_SECTION_VARIABLE( .text) = ""; +#endif // !defined(__EMSCRIPTEN__) static char try_symbolize_buffer[4096]; @@ -447,14 +472,15 @@ void ABSL_ATTRIBUTE_NOINLINE TestWithReturnAddress() { #endif } -#elif defined(_WIN32) && defined(_DEBUG) +#elif defined(_WIN32) +#if !defined(ABSL_CONSUME_DLL) TEST(Symbolize, Basics) { EXPECT_STREQ("nonstatic_func", TrySymbolize((void *)(&nonstatic_func))); // The name of an internal linkage symbol is not specified; allow either a // mangled or an unmangled name here. - const char* static_func_symbol = TrySymbolize((void *)(&static_func)); + const char *static_func_symbol = TrySymbolize((void *)(&static_func)); ASSERT_TRUE(static_func_symbol != nullptr); EXPECT_TRUE(strstr(static_func_symbol, "static_func") != nullptr); @@ -481,11 +507,12 @@ TEST(Symbolize, Truncation) { } TEST(Symbolize, SymbolizeWithDemangling) { - const char* result = TrySymbolize((void *)(&Foo::func)); + const char *result = TrySymbolize((void *)(&Foo::func)); ASSERT_TRUE(result != nullptr); EXPECT_TRUE(strstr(result, "Foo::func") != nullptr) << result; } +#endif // !defined(ABSL_CONSUME_DLL) #else // Symbolizer unimplemented TEST(Symbolize, Unimplemented) { @@ -498,10 +525,12 @@ TEST(Symbolize, Unimplemented) { #endif int main(int argc, char **argv) { +#if !defined(__EMSCRIPTEN__) // Make sure kHpageTextPadding is linked into the binary. if (volatile_bool) { ABSL_RAW_LOG(INFO, "%s", kHpageTextPadding); } +#endif // !defined(__EMSCRIPTEN__) #if ABSL_PER_THREAD_TLS // Touch the per-thread variables. |