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