mirror of
https://github.com/apple-oss-distributions/xnu.git
synced 2026-01-16 23:12:24 +00:00
36 lines
808 B
C
36 lines
808 B
C
#include <stdint.h>
|
|
#include <darwintest.h>
|
|
#include <darwintest_utils.h>
|
|
|
|
#include "../libkern/os/ptrtools.h"
|
|
|
|
#define CHECK_ALIGNMENT(T) \
|
|
{ \
|
|
T *__p; \
|
|
T_QUIET; T_EXPECT_EQ_ULONG(__alignof__(*__p), sizeof(*__p), #T " native alignment"); \
|
|
T_ASSERT_EQ_ULONG(__alignof__(os_unaligned_deref(__p)), 1UL, #T " alignment"); \
|
|
}
|
|
|
|
T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
|
|
|
|
struct A {
|
|
int a;
|
|
};
|
|
|
|
T_DECL(os_unaligned, "Unaligned pointer access")
|
|
{
|
|
int x = 0x914842;
|
|
int *p = &x;
|
|
|
|
T_ASSERT_EQ_INT(os_unaligned_deref(p), x, "load");
|
|
os_unaligned_deref(&x) = INT_MIN;
|
|
T_ASSERT_EQ_INT(x, INT_MIN, "store");
|
|
|
|
CHECK_ALIGNMENT(unsigned);
|
|
CHECK_ALIGNMENT(long long);
|
|
CHECK_ALIGNMENT(uintptr_t);
|
|
CHECK_ALIGNMENT(int16_t);
|
|
CHECK_ALIGNMENT(uint64_t);
|
|
CHECK_ALIGNMENT(struct A);
|
|
CHECK_ALIGNMENT(void *);
|
|
}
|