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-rw-r--r--src/include/assert.h11
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__