From: Mason Pike <m@sonpike.net>
Date: Fri, 26 Dec 2025 15:06:51 +0000 (+0100)
Subject: gccrs: add outer attributes
X-Git-Tag: basepoints/gcc-17~1014
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=44fc64a08bacbb686be102ea36c063487158f849;p=thirdparty%2Fgcc.git

gccrs: add outer attributes

gcc/rust/ChangeLog:
	* util/rust-attributes.cc: add attributes to the __outer_attributes set.
	This prevents some inconsistent behavior, like: https://godbolt.org/z/Eq1GE7xxY

Signed-off-by: Mason Pike <m@sonpike.net>
---

diff --git a/gcc/rust/util/rust-attributes.cc b/gcc/rust/util/rust-attributes.cc
index 8c7e0639b85..1f465f2bda1 100644
--- a/gcc/rust/util/rust-attributes.cc
+++ b/gcc/rust/util/rust-attributes.cc
@@ -124,9 +124,23 @@ static const BuiltinAttrDefinition __definitions[]
      {Attrs::TEST, CODE_GENERATION}};
 
 static const std::set<std::string> __outer_attributes
-  = {Attrs::INLINE,	    Attrs::DERIVE_ATTR, Attrs::ALLOW_INTERNAL_UNSTABLE,
-     Attrs::LANG,	    Attrs::REPR,	Attrs::PATH,
-     Attrs::TARGET_FEATURE, Attrs::TEST};
+  = {Attrs::INLINE,
+     Attrs::DERIVE_ATTR,
+     Attrs::ALLOW_INTERNAL_UNSTABLE,
+     Attrs::LANG,
+     Attrs::REPR,
+     Attrs::PATH,
+     Attrs::TARGET_FEATURE,
+     Attrs::TEST,
+     Attrs::COLD,
+     Attrs::MACRO_USE,
+     Attrs::MACRO_EXPORT,
+     Attrs::PROC_MACRO_ATTRIBUTE,
+     Attrs::PROC_MACRO_DERIVE,
+     Attrs::DEPRECATED,
+     Attrs::MUST_USE,
+     Attrs::LINK_NAME,
+     Attrs::LINK_SECTION};
 
 BuiltinAttributeMappings *
 BuiltinAttributeMappings::get ()
diff --git a/gcc/testsuite/rust/compile/no-crate-level-outer-attr.rs b/gcc/testsuite/rust/compile/no-crate-level-outer-attr.rs
new file mode 100644
index 00000000000..a238c28f1ee
--- /dev/null
+++ b/gcc/testsuite/rust/compile/no-crate-level-outer-attr.rs
@@ -0,0 +1,2 @@
+#![cold] // { dg-error "attribute cannot be used at crate level" }
+pub fn test() {}