| 1 | // Check that we fill malloc-ed memory correctly. |
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| 2 | // RUN: %clangxx_hwasan %s -o %t |
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| 3 | // RUN: %run %t | FileCheck %s --check-prefix=CHECK-0 |
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| 4 | // RUN: %env_hwasan_opts=max_malloc_fill_size=20 %run %t | FileCheck %s --check-prefix=CHECK-20-be |
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| 5 | // RUN: %env_hwasan_opts=max_malloc_fill_size=0:malloc_fill_byte=8 %run %t | FileCheck %s --check-prefix=CHECK-0 |
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| 6 | // RUN: %env_hwasan_opts=max_malloc_fill_size=10:malloc_fill_byte=8 %run %t | FileCheck %s --check-prefix=CHECK-10-8 |
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| 7 | // RUN: %env_hwasan_opts=max_malloc_fill_size=20:malloc_fill_byte=171 %run %t | FileCheck %s --check-prefix=CHECK-20-ab |
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| 8 | |
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| 9 | #include <stdio.h> |
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| 10 | |
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| 11 | int main(int argc, char **argv) { |
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| 12 | // With asan allocator this makes sure we get memory from mmap. |
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| 13 | static const int kSize = 1 << 25; |
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| 14 | unsigned char *x = new unsigned char[kSize]; |
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| 15 | printf(format: "-" ); |
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| 16 | for (int i = 0; i <= 32; i++) { |
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| 17 | printf(format: "%02x" , x[i]); |
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| 18 | } |
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| 19 | printf(format: "-\n" ); |
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| 20 | delete [] x; |
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| 21 | } |
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| 22 | |
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| 23 | // CHECK-0: -000000000000000000000000000000000000000000000000000000000000000000- |
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| 24 | // CHECK-20-be: -bebebebebebebebebebebebebebebebebebebebe00000000000000000000000000- |
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| 25 | // CHECK-10-8: -080808080808080808080000000000000000000000000000000000000000000000- |
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| 26 | // CHECK-20-ab: -abababababababababababababababababababab00000000000000000000000000- |
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| 27 | |
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