7bf43fec3a
As a consequence of the ASAN DLL's initialization process on Windows, some flags defined by the user through overriding the __asan_default_options() method will not be honored. More information here: [#117925](https://github.com/llvm/llvm-project/issues/117925) This PR aims to alleviate this for the symbolize flag in relation to this user's concern [here.](https://developercommunity.visualstudio.com/t/Overloading-of-__asan_default_options-/10688871) 1. Declared `Symbolizer::ClearTools()`. 2. Defined `Symbolizer::ClearTools()`. Upon invocation of the weak function callback of `__asan_default_options()`, `Symbolizer::tools_` will be cleared if the user specifies `symbolize=0`. 3. Added tests. --------- Co-authored-by: MacGyver Codilla <mcodilla@microsoft.com>
39 lines
1.4 KiB
C++
39 lines
1.4 KiB
C++
// RUN: %clangxx_asan -O0 %s -o %t
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// RUN: %env_asan_opts=symbolize=0 not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-SYMBOLIZE-OFF
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// RUN: %env_asan_opts=symbolize=1 not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-SYMBOLIZE-ON
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// RUN: %clangxx_asan -O0 %s -o %t -DUSER_FUNCTION_OFF
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// RUN: not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-SYMBOLIZE-OFF
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// RUN: %env_asan_opts=symbolize=0 not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-SYMBOLIZE-OFF
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// RUN: %env_asan_opts=symbolize=1 not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-SYMBOLIZE-ON
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// RUN: %clangxx_asan -O0 %s -o %t -DUSER_FUNCTION_ON
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// RUN: not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-SYMBOLIZE-ON
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// RUN: %env_asan_opts=symbolize=0 not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-SYMBOLIZE-OFF
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// RUN: %env_asan_opts=symbolize=1 not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-SYMBOLIZE-ON
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#if USER_FUNCTION_OFF
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extern "C" __declspec(dllexport) extern const char *__asan_default_options() {
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return "symbolize=0";
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}
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#endif
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#if USER_FUNCTION_ON
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extern "C" __declspec(dllexport) extern const char *__asan_default_options() {
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return "symbolize=1";
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}
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#endif
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#include <cstdio>
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#include <cstdlib>
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volatile static int heapBufferOverflowValue = 10;
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int main() {
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int *array = new int[10];
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heapBufferOverflowValue = array[10]; // CHECK-SYMBOLIZE-ON: symbolize.cpp:36
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return 0; // CHECK-SYMBOLIZE-OFF: symbolize.cpp.tmp+0x
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}
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