| 1 | // RUN: %clangxx_hwasan %s -o %t |
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| 2 | // RUN: %env_hwasan_opts=halt_on_error=0 not %run %t 2>&1 | FileCheck %s --implicit-check-not=RETURN_FROM_TEST --check-prefixes=CHECK,RECOVER |
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| 3 | // RUN: %env_hwasan_opts=halt_on_error=1 not %run %t 2>&1 | FileCheck %s --implicit-check-not=RETURN_FROM_TEST |
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| 4 | |
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| 5 | #include <sanitizer/hwasan_interface.h> |
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| 6 | #include <stdio.h> |
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| 7 | #include <stdlib.h> |
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| 8 | #include <string.h> |
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| 9 | #include <unistd.h> |
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| 10 | |
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| 11 | __attribute__((no_sanitize("hwaddress" ))) void |
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| 12 | ForceCallInterceptor(void *p, int c, size_t size) { |
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| 13 | memset(s: p, c: c, n: size) == nullptr; |
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| 14 | } |
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| 15 | |
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| 16 | int main(int argc, char **argv) { |
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| 17 | __hwasan_enable_allocator_tagging(); |
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| 18 | char a[] = {static_cast<char>(argc), 2, 3, 4}; |
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| 19 | int size = sizeof(a); |
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| 20 | char *volatile p = (char *)malloc(size: size); |
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| 21 | void *volatile p2 = p; |
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| 22 | for (int i = 0; p2 == p; p2 = __hwasan_tag_pointer(p, tag: ++i)) { |
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| 23 | } |
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| 24 | ForceCallInterceptor(p: p2, c: 0, size); |
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| 25 | free(ptr: p); |
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| 26 | fprintf(stderr, format: "RETURN_FROM_TEST\n" ); |
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| 27 | return 0; |
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| 28 | // CHECK: HWAddressSanitizer: tag-mismatch on address |
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| 29 | // CHECK: WRITE of size 4 |
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| 30 | // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memset-recover.cpp:[[@LINE-28]] |
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| 31 | // RECOVER: RETURN_FROM_TEST |
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| 32 | } |
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| 33 | |
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