From: beamandala <mandalapubhavesh@gmail.com>
Date: Thu, 20 Mar 2025 22:34:48 +0000 (-0500)
Subject: Add `#[track_caller]` as known attribute
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ecb649973a3b176f6a723c2f3d78c23ee121163d;p=thirdparty%2Fgcc.git

Add `#[track_caller]` as known attribute

gcc/rust/ChangeLog:

	* expand/rust-macro-builtins.cc (MacroBuiltin::builtin_transcribers):
	Add entry for track_caller.
	* util/rust-attribute-values.h: add `TRACK_CALLER` attribute.
	* util/rust-attributes.cc: add `track_caller` attribute definition.

gcc/testsuite/ChangeLog:

	* rust/compile/track_caller.rs: New test.

Signed-off-by: Bhavesh Mandalapu <mandalapubhavesh@gmail.com>
---

diff --git a/gcc/rust/expand/rust-macro-builtins.cc b/gcc/rust/expand/rust-macro-builtins.cc
index 1231e9fbb70..d5b6dec4a71 100644
--- a/gcc/rust/expand/rust-macro-builtins.cc
+++ b/gcc/rust/expand/rust-macro-builtins.cc
@@ -137,6 +137,7 @@ std::unordered_map<std::string, AST::MacroTranscriberFunc>
     {"cfg_accessible", MacroBuiltin::sorry},
     {"rustc_const_stable", MacroBuiltin::sorry},
     {"rustc_const_unstable", MacroBuiltin::sorry},
+    {"track_caller", MacroBuiltin::sorry},
     /* Derive builtins do not need a real transcriber, but still need one. It
        should however never be called since builtin derive macros get expanded
        differently, and benefit from knowing on what kind of items they are
diff --git a/gcc/rust/util/rust-attribute-values.h b/gcc/rust/util/rust-attribute-values.h
index 75dc9e14110..409f6fb7ccb 100644
--- a/gcc/rust/util/rust-attribute-values.h
+++ b/gcc/rust/util/rust-attribute-values.h
@@ -58,6 +58,7 @@ public:
   static constexpr auto &RUSTC_CONST_UNSTABLE = "rustc_const_unstable";
   static constexpr auto &MAY_DANGLE = "may_dangle";
   static constexpr auto &PRELUDE_IMPORT = "prelude_import";
+  static constexpr auto &TRACK_CALLER = "track_caller";
 };
 } // namespace Values
 } // namespace Rust
diff --git a/gcc/rust/util/rust-attributes.cc b/gcc/rust/util/rust-attributes.cc
index 079e17793db..28d99f1d0a0 100644
--- a/gcc/rust/util/rust-attributes.cc
+++ b/gcc/rust/util/rust-attributes.cc
@@ -75,7 +75,8 @@ static const BuiltinAttrDefinition __definitions[]
      // assuming we keep these for static analysis
      {Attrs::RUSTC_CONST_STABLE, STATIC_ANALYSIS},
      {Attrs::RUSTC_CONST_UNSTABLE, STATIC_ANALYSIS},
-     {Attrs::PRELUDE_IMPORT, NAME_RESOLUTION}};
+     {Attrs::PRELUDE_IMPORT, NAME_RESOLUTION},
+     {Attrs::TRACK_CALLER, CODE_GENERATION}};
 
 BuiltinAttributeMappings *
 BuiltinAttributeMappings::get ()
diff --git a/gcc/testsuite/rust/compile/track_caller.rs b/gcc/testsuite/rust/compile/track_caller.rs
new file mode 100644
index 00000000000..fd1d8429588
--- /dev/null
+++ b/gcc/testsuite/rust/compile/track_caller.rs
@@ -0,0 +1,6 @@
+#[track_caller]
+fn foo() {}
+
+fn main() {
+    foo();
+}