| 1 | // RUN: %clang_cl_asan %Od %p/dll_host.cpp %Fe%t |
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| 2 | // RUN: %clang_cl_asan %LD %Od %s %Fe%t.dll |
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| 3 | // RUN: not %run %t %t.dll 2>&1 | FileCheck %s |
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| 4 | |
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| 5 | #include <sanitizer/asan_interface.h> |
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| 6 | |
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| 7 | void should_not_crash(volatile char *c) { |
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| 8 | *c = 42; |
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| 9 | } |
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| 10 | |
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| 11 | void should_crash(volatile char *c) { |
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| 12 | *c = 42; |
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| 13 | } |
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| 14 | |
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| 15 | extern "C" __declspec(dllexport) |
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| 16 | int test_function() { |
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| 17 | char buffer[256]; |
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| 18 | should_not_crash(c: &buffer[0]); |
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| 19 | __asan_poison_memory_region(addr: buffer, size: 128); |
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| 20 | should_not_crash(c: &buffer[192]); |
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| 21 | __asan_unpoison_memory_region(addr: buffer, size: 64); |
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| 22 | should_not_crash(c: &buffer[32]); |
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| 23 | |
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| 24 | should_crash(c: &buffer[96]); |
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| 25 | // CHECK: AddressSanitizer: use-after-poison on address [[ADDR:0x[0-9a-f]+]] |
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| 26 | // CHECK-NEXT: WRITE of size 1 at [[ADDR]] thread T0 |
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| 27 | // CHECK-NEXT: should_crash{{.*[\\/]}}dll_poison_unpoison.cpp |
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| 28 | // CHECK-NEXT: test_function{{.*[\\/]}}dll_poison_unpoison.cpp:[[@LINE-4]] |
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| 29 | // CHECK-NEXT: main |
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| 30 | // |
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| 31 | // CHECK: [[ADDR]] is located in stack of thread T0 at offset [[OFFSET:.*]] in frame |
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| 32 | // CHECK-NEXT: test_function{{.*[\\/]}}dll_poison_unpoison.cpp |
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| 33 | // CHECK: 'buffer'{{.*}} <== Memory access at offset [[OFFSET]] is inside this variable |
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| 34 | return 0; |
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| 35 | } |
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| 36 | |
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