| 1 | // Test that initially callocked memory is properly freed |
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| 2 | // (see https://github.com/google/sanitizers/issues/626). |
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| 3 | // |
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| 4 | // RUN: %clang %s -o %t |
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| 5 | // RUN: env LD_PRELOAD=%shared_libasan %run %t |
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| 6 | // |
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| 7 | // REQUIRES: asan-dynamic-runtime |
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| 8 | // |
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| 9 | // This way of setting LD_PRELOAD does not work with Android test runner. |
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| 10 | // REQUIRES: !android |
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| 11 | |
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| 12 | #include <stdio.h> |
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| 13 | #include <stdlib.h> |
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| 14 | |
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| 15 | static void *ptr; |
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| 16 | |
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| 17 | // This constructor will run before __asan_init |
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| 18 | // so calloc will allocate memory from special pool. |
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| 19 | static void init() { |
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| 20 | ptr = calloc(nmemb: 10, size: 1); |
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| 21 | } |
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| 22 | |
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| 23 | __attribute__((section(".preinit_array" ), used)) |
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| 24 | void *dummy = init; |
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| 25 | |
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| 26 | void free_memory() { |
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| 27 | // This used to abort because |
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| 28 | // Asan's free didn't recognize ptr. |
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| 29 | free(ptr: ptr); |
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| 30 | } |
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| 31 | |
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| 32 | int main() { |
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| 33 | free_memory(); |
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| 34 | return 0; |
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| 35 | } |
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| 36 | |
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| 37 | |
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