diff options
Diffstat (limited to 'src/include/assert.h')
| -rw-r--r-- | src/include/assert.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/include/assert.h b/src/include/assert.h index 262b8cc761..944c67768a 100644 --- a/src/include/assert.h +++ b/src/include/assert.h @@ -80,4 +80,15 @@ extern void _dead_code_assertion_failed(void) __attribute__((noreturn)); *(type *)(uintptr_t)0; \ }) +#ifdef __x86_64__ +#define pointer_to_uint32_safe(x) ({ \ + if ((uintptr_t)(x) > 0xffffffffUL) \ + die("Cast from pointer to uint32_t overflows"); \ + (uint32_t)(uintptr_t)(x); \ +}) +#else +#define pointer_to_uint32_safe(x) ({ \ + (uint32_t)(uintptr_t)(x); \ +}) +#endif #endif // __ASSERT_H__ |