| 1 | // Main executable is uninstrumented, but linked to ASan runtime. |
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| 2 | // Regression test for https://code.google.com/p/address-sanitizer/issues/detail?id=357. |
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| 3 | |
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| 4 | // RUN: %clangxx -g -O0 %s -c -o %t.o |
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| 5 | // RUN: %clangxx_asan -g -O0 %t.o -o %t |
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| 6 | // RUN: %run %t 2>&1 | FileCheck %s |
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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 <string.h> |
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| 11 | |
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| 12 | #include "sanitizer/asan_interface.h" |
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| 13 | #if __has_feature(ptrauth_calls) |
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| 14 | # include <ptrauth.h> |
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| 15 | #endif |
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| 16 | |
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| 17 | void test_shadow(char *p, size_t size) { |
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| 18 | fprintf(stderr, format: "p = %p\n" , p); |
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| 19 | char *q = (char *)__asan_region_is_poisoned(beg: p, size); |
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| 20 | fprintf(stderr, format: "=%zd=\n" , q ? q - p : -1); |
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| 21 | } |
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| 22 | |
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| 23 | int main(int argc, char *argv[]) { |
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| 24 | char *p = (char *)malloc(size: 10000); |
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| 25 | test_shadow(p, size: 100); |
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| 26 | free(ptr: p); |
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| 27 | // CHECK: =-1= |
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| 28 | |
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| 29 | char *mainptr; |
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| 30 | #if __has_feature(ptrauth_calls) |
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| 31 | mainptr = (char *)ptrauth_strip((void *)&main, ptrauth_key_return_address); |
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| 32 | #else |
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| 33 | mainptr = (char *)&main; |
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| 34 | #endif |
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| 35 | test_shadow(p: mainptr, size: 1); |
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| 36 | // CHECK: =-1= |
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| 37 | |
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| 38 | test_shadow(p: (char *)&p, size: 1); |
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| 39 | // CHECK: =-1= |
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| 40 | |
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| 41 | return 0; |
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| 42 | } |
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| 43 | |
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