non-executable-pc.cpp
919 Bytes
// RUN: %clangxx_asan %s -o %t
// RUN: not %run %t 0 2>&1 | FileCheck %s
// RUN: not %run %t n 2>&1 | FileCheck %s -check-prefix=CHECK -check-prefix=NON_EXEC
// Not every OS lists every memory region in MemoryMappingLayout.
// This is limited to x86_64 because some architectures (e.g. the s390 before
// the z14) don't support NX mappings and others like PowerPC use function
// descriptors.
// REQUIRES: x86-target-arch && (linux || freebsd || netbsd)
#include <assert.h>
typedef void void_f();
int main(int argc, char **argv) {
char *array = new char[42];
void_f *func;
assert(argc > 1);
if (argv[1][0] == '0') {
func = (void_f *)0x04;
} else {
assert(argv[1][0] == 'n');
func = (void_f *)array;
}
func();
// CHECK: DEADLYSIGNAL
// CHECK: {{AddressSanitizer: (SEGV|access-violation).*(address|pc) }}
// NON_EXEC: PC is at a non-executable region. Maybe a wild jump?
return 0;
}