1315 	void *p1;  in get_pointer_to_instructions()  local
1317 	p1 = ALIGN_PTR_UP(&lots_o_noops_around_write, PAGE_SIZE);  in get_pointer_to_instructions()
1320 	assert(p1 == &lots_o_noops_around_write);  in get_pointer_to_instructions()
1323 	p1 += PAGE_SIZE;  in get_pointer_to_instructions()
1329 	madvise(p1, PAGE_SIZE, MADV_DONTNEED);  in get_pointer_to_instructions()
1331 	return p1;  in get_pointer_to_instructions()
1336 	void *p1;  in test_executing_on_unreadable_memory()  local
1341 	p1 = get_pointer_to_instructions();  in test_executing_on_unreadable_memory()
1343 	ptr_contents = read_ptr(p1);  in test_executing_on_unreadable_memory()
1344 	dprintf2("ptr (%p) contents@%d: %x\n", p1, __LINE__, ptr_contents);  in test_executing_on_unreadable_memory()
1346 	ret = mprotect_pkey(p1, PAGE_SIZE, PROT_EXEC, (u64)pkey);  in test_executing_on_unreadable_memory()
1355 	madvise(p1, PAGE_SIZE, MADV_DONTNEED);  in test_executing_on_unreadable_memory()
1358 	ptr_contents = read_ptr(p1);  in test_executing_on_unreadable_memory()
1359 	dprintf2("ptr (%p) contents@%d: %x\n", p1, __LINE__, ptr_contents);  in test_executing_on_unreadable_memory()
1365 	void *p1;  in test_implicit_mprotect_exec_only_memory()  local
1372 	p1 = get_pointer_to_instructions();  in test_implicit_mprotect_exec_only_memory()
1374 	ptr_contents = read_ptr(p1);  in test_implicit_mprotect_exec_only_memory()
1375 	dprintf2("ptr (%p) contents@%d: %x\n", p1, __LINE__, ptr_contents);  in test_implicit_mprotect_exec_only_memory()
1378 	ret = mprotect(p1, PAGE_SIZE, PROT_EXEC);  in test_implicit_mprotect_exec_only_memory()
1384 	madvise(p1, PAGE_SIZE, MADV_DONTNEED);  in test_implicit_mprotect_exec_only_memory()
1387 	ptr_contents = read_ptr(p1);  in test_implicit_mprotect_exec_only_memory()
1388 	dprintf2("ptr (%p) contents@%d: %x\n", p1, __LINE__, ptr_contents);  in test_implicit_mprotect_exec_only_memory()
1397 	ret = mprotect(p1, PAGE_SIZE, PROT_NONE);  in test_implicit_mprotect_exec_only_memory()
1400 	ret = mprotect(p1, PAGE_SIZE, PROT_READ|PROT_EXEC);  in test_implicit_mprotect_exec_only_memory()
1402 	ptr_contents = read_ptr(p1);  in test_implicit_mprotect_exec_only_memory()