| 1 | // Checks that the __sanitizer_on_print hook gets the exact same sanitizer |
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| 2 | // report as what is printed to stderr. |
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| 3 | // |
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| 4 | // RUN: %clangxx %s -o %t |
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| 5 | // RUN: %run %t %t-onprint.txt 2>%t-stderr.txt || true |
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| 6 | // RUN: diff %t-onprint.txt %t-stderr.txt |
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| 7 | // |
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| 8 | // UNSUPPORTED: android |
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| 9 | |
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| 10 | #include <cassert> |
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| 11 | #include <cstdlib> |
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| 12 | #include <fcntl.h> |
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| 13 | #include <string.h> |
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| 14 | #include <sys/stat.h> |
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| 15 | #include <sys/types.h> |
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| 16 | #include <unistd.h> |
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| 17 | |
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| 18 | int f; |
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| 19 | volatile void *buf; |
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| 20 | volatile char sink; |
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| 21 | |
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| 22 | __attribute__((disable_sanitizer_instrumentation)) extern "C" void |
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| 23 | __sanitizer_on_print(const char *str) { |
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| 24 | write(fd: f, buf: str, n: strlen(s: str)); |
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| 25 | } |
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| 26 | |
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| 27 | int main(int argc, char *argv[]) { |
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| 28 | assert(argc >= 2); |
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| 29 | f = open(file: argv[1], O_CREAT | O_TRUNC | O_WRONLY, 0666); |
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| 30 | |
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| 31 | // Use-after-free to trigger ASan/TSan reports. |
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| 32 | void *ptr = malloc(1); |
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| 33 | buf = ptr; |
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| 34 | free(ptr); |
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| 35 | sink = *static_cast<char *>(ptr); |
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| 36 | return 0; |
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| 37 | } |
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| 38 | |
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