| 1 | // Test max_redzone runtime option. |
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| 2 | |
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| 3 | // RUN: %clangxx_asan -O0 %s -o %t && %env_asan_opts=max_redzone=32 %run %t 0 2>&1 |
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| 4 | // RUN: %clangxx_asan -O0 %s -o %t && %run %t 1 2>&1 |
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| 5 | // RUN: %clangxx_asan -O3 %s -o %t && %env_asan_opts=max_redzone=32 %run %t 0 2>&1 |
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| 6 | // RUN: %clangxx_asan -O3 %s -o %t && %run %t 1 2>&1 |
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| 7 | |
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| 8 | #include <stdio.h> |
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| 9 | #include <stdlib.h> |
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| 10 | #include <stdint.h> |
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| 11 | #include <sanitizer/allocator_interface.h> |
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| 12 | |
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| 13 | int main(int argc, char **argv) { |
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| 14 | if (argc < 2) |
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| 15 | return 1; |
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| 16 | bool large_redzone = atoi(nptr: argv[1]); |
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| 17 | size_t before = __sanitizer_get_heap_size(); |
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| 18 | void *pp[10000]; |
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| 19 | for (int i = 0; i < 10000; ++i) |
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| 20 | pp[i] = malloc(size: 4096 - 64); |
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| 21 | size_t after = __sanitizer_get_heap_size(); |
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| 22 | for (int i = 0; i < 10000; ++i) |
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| 23 | free(ptr: pp[i]); |
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| 24 | size_t diff = after - before; |
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| 25 | return !(large_redzone ? diff > 46000000 : diff < 46000000); |
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| 26 | } |
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| 27 | |
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