be366041fa
left/right is a weird way to refer to address ordering. Reviewed By: eugenis, MaskRay Differential Revision: https://reviews.llvm.org/D132611
65 lines
2.2 KiB
C++
65 lines
2.2 KiB
C++
// RUN: %clangxx_asan -O2 -fsanitize-address-outline-instrumentation %s -o %t
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// RUN: not %run %t A 2>&1 | FileCheck %s --check-prefix=CHECK_0_BYTES
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// RUN: not %run %t B 2>&1 | FileCheck %s --check-prefix=CHECK_0_BYTES
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// RUN: not %run %t C 2>&1 | FileCheck %s --check-prefix=CHECK_1_BYTES
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// RUN: not %run %t D 2>&1 | FileCheck %s --check-prefix=CHECK_1_BYTES
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// RUN: %clangxx_asan -O2 -fsanitize-address-outline-instrumentation %s -o %t \
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// RUN: -mllvm -asan-recover=1
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// RUN: not %run %t A 2>&1 | FileCheck %s --check-prefix=CHECK_0_BYTES
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// RUN: not %run %t B 2>&1 | FileCheck %s --check-prefix=CHECK_0_BYTES
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// RUN: not %run %t C 2>&1 | FileCheck %s --check-prefix=CHECK_1_BYTES
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// RUN: not %run %t D 2>&1 | FileCheck %s --check-prefix=CHECK_1_BYTES
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// RUN: %clangxx_asan -O2 -fsanitize-address-outline-instrumentation %s -o %t \
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// RUN: -mllvm -asan-force-experiment=42
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// RUN: not %run %t A 2>&1 | FileCheck %s --check-prefix=CHECK_0_BYTES
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// RUN: not %run %t B 2>&1 | FileCheck %s --check-prefix=CHECK_0_BYTES
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// RUN: not %run %t C 2>&1 | FileCheck %s --check-prefix=CHECK_1_BYTES
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// RUN: not %run %t D 2>&1 | FileCheck %s --check-prefix=CHECK_1_BYTES
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// CHECK_0_BYTES: ERROR: AddressSanitizer: global-buffer-overflow on address [[ADDR:.*]] at
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// CHECK_0_BYTES: [[ADDR]] is located 0 bytes after
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// CHECK_1_BYTES: ERROR: AddressSanitizer: global-buffer-overflow on address [[ADDR:.*]] at
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// CHECK_1_BYTES: [[ADDR]] is located 1 bytes after
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#include <sanitizer/asan_interface.h>
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#include <stdlib.h>
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#include <string.h>
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static int64_t mem = -1;
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static int64_t *volatile G = &mem;
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inline uint16_t UNALIGNED_LOAD(const void *p) {
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uint16_t data;
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memcpy(&data, p, sizeof data);
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return data;
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}
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inline void UNALIGNED_STORE(uint16_t data, void *p) {
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memcpy(p, &data, sizeof data);
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}
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int main(int argc, char **argv) {
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if (argc != 2)
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return 1;
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int res = 1;
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switch (argv[1][0]) {
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case 'A':
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res = UNALIGNED_LOAD(reinterpret_cast<char *>(G) + 7);
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break;
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case 'B':
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UNALIGNED_STORE(0, reinterpret_cast<char *>(G) + 7);
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break;
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case 'C':
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res = UNALIGNED_LOAD(reinterpret_cast<char *>(G) + 9);
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break;
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case 'D':
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UNALIGNED_STORE(0, reinterpret_cast<char *>(G) + 9);
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break;
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}
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return res;
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}
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