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| // RUN: %clangxx_msan -O0 -g -DPOSITIVE %s -o %t
// RUN: not %run %t 2>&1 | FileCheck %s
// RUN: MSAN_OPTIONS=verbosity=1 not %run %t 2>&1 | \
// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-VERBOSE
// RUN: %clangxx_msan -O0 -g %s -o %t && %run %t
#include <sanitizer/msan_interface.h>
int main(void) {
char p[32] = {};
__msan_poison(p + 10, 2);
__msan_check_mem_is_initialized(p, 10);
__msan_check_mem_is_initialized(p + 12, 30);
#ifdef POSITIVE
__msan_check_mem_is_initialized(p + 5, 20);
// CHECK: Uninitialized bytes in __msan_check_mem_is_initialized at offset 5 inside [0x{{.*}}, 20)
// CHECK-VERBOSE: Shadow map of [0x{{.*}}, 0x{{.*}}), 20 bytes:
// CHECK-VERBOSE: 0x{{.*}}: ..000000 0000ffff 00000000 00000000
// CHECK-VERBOSE: 0x{{.*}}: 00000000 00...... ........ ........
// CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
// CHECK: #0 0x{{.*}}in main{{.*}}msan_check_mem_is_initialized.cpp:[[@LINE-7]]
#endif
return 0;
}
|