| 1 | // Test that SIGSEGV during leak checking does not crash the process. |
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| 2 | // RUN: %clangxx_lsan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s |
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| 3 | // UNSUPPORTED: ppc |
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| 4 | #include <sanitizer/lsan_interface.h> |
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| 5 | #include <stdio.h> |
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| 6 | #include <stdlib.h> |
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| 7 | #include <sys/mman.h> |
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| 8 | #include <unistd.h> |
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| 9 | |
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| 10 | char data[10 * 1024 * 1024]; |
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| 11 | |
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| 12 | int main() { |
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| 13 | long pagesize_mask = sysconf(_SC_PAGESIZE) - 1; |
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| 14 | void *p = malloc(size: 10 * 1024 * 1024); |
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| 15 | // surprise-surprise! |
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| 16 | mprotect(addr: (void *)(((unsigned long)p + pagesize_mask) & ~pagesize_mask), |
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| 17 | len: 16 * 1024, PROT_NONE); |
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| 18 | mprotect(addr: (void *)(((unsigned long)data + pagesize_mask) & ~pagesize_mask), |
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| 19 | len: 16 * 1024, PROT_NONE); |
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| 20 | __lsan_do_leak_check(); |
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| 21 | fprintf(stderr, format: "DONE\n" ); |
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| 22 | } |
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| 23 | |
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| 24 | // CHECK: Tracer caught signal 11 |
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| 25 | // CHECK: LeakSanitizer has encountered a fatal error |
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| 26 | // CHECK: HINT: For debugging, try setting {{.*}} LSAN_OPTIONS |
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| 27 | // CHECK-NOT: DONE |
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| 28 | |
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