| 1 | // RUN: %clang_hwasan -O0 %s -DMALLOC -DFREE -o %t.mf |
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| 2 | // RUN: %env_hwasan_opts=tag_in_malloc=0,tag_in_free=1 not %run %t.mf 2>&1 | FileCheck %s --check-prefixes=FREE |
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| 3 | // RUN: %env_hwasan_opts=tag_in_malloc=1,tag_in_free=1 not %run %t.mf 2>&1 | FileCheck %s --check-prefixes=MALLOC |
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| 4 | // RUN: %env_hwasan_opts=tag_in_malloc=1,tag_in_free=0 not %run %t.mf 2>&1 | FileCheck %s --check-prefixes=MALLOC |
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| 5 | // RUN: %env_hwasan_opts=tag_in_malloc=0,tag_in_free=0 %run %t.mf 2>&1 |
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| 6 | |
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| 7 | // RUN: %clang_hwasan -O0 %s -DFREE -o %t.f |
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| 8 | // RUN: %env_hwasan_opts=tag_in_malloc=0,tag_in_free=1 not %run %t.f 2>&1 | FileCheck %s --check-prefixes=FREE |
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| 9 | // RUN: %env_hwasan_opts=tag_in_malloc=1,tag_in_free=1 not %run %t.f 2>&1 | FileCheck %s --check-prefixes=FREE |
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| 10 | // RUN: %env_hwasan_opts=tag_in_malloc=1,tag_in_free=0 %run %t.f 2>&1 |
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| 11 | // RUN: %env_hwasan_opts=tag_in_malloc=0,tag_in_free=0 %run %t.f 2>&1 |
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| 12 | |
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| 13 | // RUN: %clang_hwasan -O0 %s -DMALLOC -o %t.m |
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| 14 | // RUN: %env_hwasan_opts=tag_in_malloc=0,tag_in_free=1 %run %t.m 2>&1 |
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| 15 | // RUN: %env_hwasan_opts=tag_in_malloc=1,tag_in_free=1 not %run %t.m 2>&1 | FileCheck %s --check-prefixes=MALLOC |
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| 16 | // RUN: %env_hwasan_opts=tag_in_malloc=1,tag_in_free=0 not %run %t.m 2>&1 | FileCheck %s --check-prefixes=MALLOC |
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| 17 | // RUN: %env_hwasan_opts=tag_in_malloc=0,tag_in_free=0 %run %t.m 2>&1 |
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| 18 | |
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| 19 | #include <stdlib.h> |
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| 20 | #include <stdio.h> |
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| 21 | #include <sanitizer/hwasan_interface.h> |
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| 22 | |
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| 23 | int main() { |
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| 24 | __hwasan_enable_allocator_tagging(); |
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| 25 | // Loop for a while to make sure that the memory for the test below is reused after an earlier free(), |
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| 26 | // and is potentially tagged (when tag_in_free == 1). |
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| 27 | for (int i = 0; i < 100; ++i) { |
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| 28 | char * volatile p = (char*)malloc(size: 10); |
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| 29 | free(ptr: p); |
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| 30 | } |
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| 31 | |
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| 32 | char * volatile p = (char*)malloc(size: 10); |
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| 33 | #ifdef MALLOC |
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| 34 | // MALLOC: READ of size 1 at |
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| 35 | // MALLOC: is located 6 bytes after a 10-byte region |
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| 36 | // MALLOC: allocated by thread T0 here: |
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| 37 | char volatile x = p[16]; |
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| 38 | #endif |
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| 39 | free(ptr: p); |
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| 40 | #ifdef FREE |
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| 41 | // FREE: READ of size 1 at |
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| 42 | // FREE: is located 0 bytes inside a 10-byte region |
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| 43 | // FREE: freed by thread T0 here: |
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| 44 | // FREE: previously allocated by thread T0 here: |
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| 45 | char volatile y = p[0]; |
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| 46 | #endif |
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| 47 | |
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| 48 | __hwasan_disable_allocator_tagging(); |
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| 49 | |
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| 50 | return 0; |
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| 51 | } |
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| 52 | |
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