Rename the gcc component to ci-gcc

To free up the `gcc` name for the actual libgccjit component that we will ship to rustup, and also make it more explicit that this component is internal and for bootstrap usages only.

Author: Kobzol

src/bootstrap/src/core/build_steps/dist.rs

@@ -2871,31 +2871,33 @@ impl Step for ReproducibleArtifacts {
 /// Tarball containing a prebuilt version of the libgccjit library,
 /// needed as a dependency for the GCC codegen backend (similarly to the LLVM
 /// backend needing a prebuilt libLLVM).
+///
+/// This component is used for `download-ci-gcc`.
 #[derive(Clone, Debug, Eq, Hash, PartialEq)]
-pub struct Gcc {
+pub struct CiGcc {
     target: TargetSelection,
 }
 
-impl Step for Gcc {
+impl Step for CiGcc {
     type Output = GeneratedTarball;
 
     fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
-        run.alias("gcc")
+        run.alias("ci-gcc")
     }
 
     fn make_run(run: RunConfig<'_>) {
-        run.builder.ensure(Gcc { target: run.target });
+        run.builder.ensure(CiGcc { target: run.target });
     }
 
     fn run(self, builder: &Builder<'_>) -> Self::Output {
-        let tarball = Tarball::new(builder, "gcc", &self.target.triple);
+        let tarball = Tarball::new(builder, "ci-gcc", &self.target.triple);
         let output = builder
             .ensure(super::gcc::Gcc { target_pair: GccTargetPair::for_native_build(self.target) });
         tarball.add_file(output.libgccjit(), "lib", FileType::NativeLibrary);
         tarball.generate()
     }
 
     fn metadata(&self) -> Option<StepMetadata> {
-        Some(StepMetadata::dist("gcc", self.target))
+        Some(StepMetadata::dist("ci-gcc", self.target))
     }
 }

src/bootstrap/src/core/builder/mod.rs

@@ -989,7 +989,7 @@ impl<'a> Builder<'a> {
                 dist::PlainSourceTarballGpl,
                 dist::BuildManifest,
                 dist::ReproducibleArtifacts,
-                dist::Gcc
+                dist::CiGcc
             ),
             Kind::Install => describe!(
                 install::Docs,

src/bootstrap/src/core/download.rs

@@ -381,7 +381,7 @@ impl Config {
         }
         let base = &self.stage0_metadata.config.artifacts_server;
         let version = self.artifact_version_part(gcc_sha);
-        let filename = format!("gcc-{version}-{}.tar.xz", self.host_target.triple);
+        let filename = format!("ci-gcc-{version}-{}.tar.xz", self.host_target.triple);
         let tarball = gcc_cache.join(&filename);
         if !tarball.exists() {
             let help_on_error = "ERROR: failed to download gcc from ci

src/ci/docker/host-x86_64/dist-x86_64-linux/dist.sh

@@ -9,8 +9,8 @@ python3 ../x.py build --set rust.debug=true opt-dist
     --include-default-paths \
     build-manifest bootstrap
 
-# Use GCC for building GCC, as it seems to behave badly when built with Clang
+# Use GCC for building GCC components, as it seems to behave badly when built with Clang
 # Only build GCC on full builds, not try builds
 if [ "${DIST_TRY_BUILD:-0}" == "0" ]; then
-    CC=/rustroot/bin/cc CXX=/rustroot/bin/c++ python3 ../x.py dist gcc
+    CC=/rustroot/bin/cc CXX=/rustroot/bin/c++ python3 ../x.py dist ci-gcc
 fi