b3d1e921aa
The tests added by #163468 appear to be broken due to lack of libcxx support (?). Marking unsupported everywhere for now since it passes on some platforms and fails on others, and I don't know the full list. Android fail: https://lab.llvm.org/buildbot/#/builders/186/builds/14106
52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
// Test crash gives guidance on -D__SANITIZER_DISABLE_CONTAINER_OVERFLOW__ and
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// ASAN_OPTIONS=detect_container_overflow=0
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// RUN: %clangxx_asan -O %s -o %t
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// RUN: not %run %t 2>&1 | FileCheck --check-prefix=CHECK-CRASH %s
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//
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// Test overflow checks can be disabled at runtime with
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// ASAN_OPTIONS=detect_container_overflow=0
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// RUN: %env_asan_opts=detect_container_overflow=0 %run %t 2>&1 | FileCheck --check-prefix=CHECK-NOCRASH %s
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//
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// Illustrate use of -D__SANITIZER_DISABLE_CONTAINER_OVERFLOW__ flag to suppress
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// overflow checks at compile time.
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// RUN: %clangxx_asan -D__SANITIZER_DISABLE_CONTAINER_OVERFLOW__ -O %s -o %t-no-overflow
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// RUN: %run %t-no-overflow 2>&1 | FileCheck --check-prefix=CHECK-NOCRASH %s
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//
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// UNSUPPORTED: true
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#include <assert.h>
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#include <stdio.h>
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#include <string.h>
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// public definition of __sanitizer_annotate_contiguous_container
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#include "sanitizer/common_interface_defs.h"
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static volatile int one = 1;
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int TestCrash() {
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long t[100];
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t[60] = 0;
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#if __has_feature(address_sanitizer)
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__sanitizer_annotate_contiguous_container(&t[0], &t[0] + 100, &t[0] + 100,
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&t[0] + 50);
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#endif
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// CHECK-CRASH: AddressSanitizer: container-overflow
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// CHECK-CRASH: ASAN_OPTIONS=detect_container_overflow=0
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// CHECK-CRASH: __SANITIZER_DISABLE_CONTAINER_OVERFLOW__
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// CHECK-NOCRASH-NOT: AddressSanitizer: container-overflow
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// CHECK-NOCRASH-NOT: ASAN_OPTIONS=detect_container_overflow=0
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// CHECK-NOCRASH-NOT: __SANITIZER_DISABLE_CONTAINER_OVERFLOW__
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return (int)t[60 * one]; // Touches the poisoned memory.
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}
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int main(int argc, char **argv) {
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int retval = 0;
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retval = TestCrash();
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printf("Exiting main\n");
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return retval;
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}
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