gcc-plugins: Always define CONST_CAST_GIMPLE and CONST_CAST_TREE

For gcc-16, the CONST_CAST macro family was removed. Add back what
we were using in gcc-common.h, as they are simple wrappers.

See GCC commits:
  c3d96ff9e916c02584aa081f03ab999292efbb50
  458c7926d48959abcb2c1adaa22458e27459a551

Suggested-by: Ingo Saitz <ingo@hannover.ccc.de>
Link: https://lore.kernel.org/lkml/ab6OKoay0OWkywjK@spatz.zoo
Fixes: 6b90bd4ba40b ("GCC plugin infrastructure")
Tested-by: Ivan Bulatovic <combuster@archlinux.us>
Tested-by: Christopher Cradock <christopher@cradock.myzen.co.uk>
Signed-off-by: Kees Cook <kees@kernel.org>

diff --git a/scripts/gcc-plugins/gcc-common.h b/scripts/gcc-plugins/gcc-common.h
index 8f1b350..abb1964 100644 (file)
--- a/scripts/gcc-plugins/gcc-common.h
+++ b/scripts/gcc-plugins/gcc-common.h
@@ -309,7 +309,9 @@ typedef const gimple *const_gimple_ptr;
 #define gimple gimple_ptr
 #define const_gimple const_gimple_ptr
 #undef CONST_CAST_GIMPLE
-#define CONST_CAST_GIMPLE(X) CONST_CAST(gimple, (X))
+#define CONST_CAST_GIMPLE(X) const_cast<gimple>((X))
+#undef CONST_CAST_TREE
+#define CONST_CAST_TREE(X) const_cast<tree>((X))
 
 /* gimple related */
 static inline gimple gimple_build_assign_with_ops(enum tree_code subcode, tree lhs, tree op1, tree op2 MEM_STAT_DECL)