| 1 | // Checks how we print the developer note "hwasan_dev_note_heap_rb_distance". |
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| 2 | // RUN: %clang_hwasan %s -o %t |
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| 3 | // RUN: not %run %t 10 2>&1 | FileCheck %s --check-prefix=D10 |
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| 4 | // RUN: not %run %t 42 2>&1 | FileCheck %s --check-prefix=D42 |
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| 5 | |
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| 6 | #include <stdlib.h> |
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| 7 | #include <stdio.h> |
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| 8 | #include <sanitizer/hwasan_interface.h> |
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| 9 | |
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| 10 | |
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| 11 | void *p[100]; |
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| 12 | |
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| 13 | int main(int argc, char **argv) { |
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| 14 | __hwasan_enable_allocator_tagging(); |
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| 15 | int distance = argc >= 2 ? atoi(nptr: argv[1]) : 1; |
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| 16 | for (int i = 0; i < 100; i++) |
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| 17 | p[i] = malloc(size: i); |
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| 18 | for (int i = 0; i < 100; i++) |
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| 19 | free(ptr: p[i]); |
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| 20 | |
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| 21 | *(int*)p[distance] = 0; |
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| 22 | } |
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| 23 | |
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| 24 | // D10: hwasan_dev_note_heap_rb_distance: 90 1023 |
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| 25 | // D42: hwasan_dev_note_heap_rb_distance: 58 1023 |
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| 26 | |
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