#endif
#endif
+#ifdef CONFIG_STACK_VALIDATION
+#define annotate_unreachable() ({ \
+ asm("%c0:\t\n" \
+ ".pushsection __unreachable, \"a\"\t\n" \
+ ".long %c0b\t\n" \
+ ".popsection\t\n" : : "i" (__LINE__)); \
+})
+#else
+#define annotate_unreachable()
+#endif
+
/*
* Mark a position in code as unreachable. This can be used to
* suppress control flow warnings after asm blocks that transfer
* this in the preprocessor, but we can live with this because they're
* unreleased. Really, we need to have autoconf for the kernel.
*/
-#define unreachable() __builtin_unreachable()
+#define unreachable() \
+ do { annotate_unreachable(); __builtin_unreachable(); } while (0)
/* Mark a function definition as prohibited from being cloned. */
#define __noclone __attribute__((__noclone__, __optimize__("no-tracer")))