1 files changed, 68 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_cranelift/scripts/setup_rust_fork.sh b/compiler/rustc_codegen_cranelift/scripts/setup_rust_fork.sh
new file mode 100644
index 000000000..091bfa1e9
--- /dev/null
+++ b/compiler/rustc_codegen_cranelift/scripts/setup_rust_fork.sh
@@ -0,0 +1,68 @@
+#!/usr/bin/env bash
+set -e
+
+./y.rs build --no-unstable-features
+
+echo "[SETUP] Rust fork"
+git clone https://github.com/rust-lang/rust.git || true
+pushd rust
+git fetch
+git checkout -- .
+git checkout "$(rustc -V | cut -d' ' -f3 | tr -d '(')"
+
+git apply - <<EOF
+diff --git a/library/alloc/Cargo.toml b/library/alloc/Cargo.toml
+index d95b5b7f17f..00b6f0e3635 100644
+--- a/library/alloc/Cargo.toml
++++ b/library/alloc/Cargo.toml
+@@ -8,7 +8,7 @@ edition = "2018"
+
+ [dependencies]
+ core = { path = "../core" }
+-compiler_builtins = { version = "0.1.40", features = ['rustc-dep-of-std'] }
++compiler_builtins = { version = "0.1.66", features = ['rustc-dep-of-std', 'no-asm'] }
+
+ [dev-dependencies]
+ rand = "0.7"
+ rand_xorshift = "0.2"
+diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs
+index 8431aa7b818..a3ff7e68ce5 100644
+--- a/src/tools/compiletest/src/runtest.rs
++++ b/src/tools/compiletest/src/runtest.rs
+@@ -3489,12 +3489,7 @@ fn normalize_output(&self, output: &str, custom_rules: &[(String, String)]) -> S
+         let compiler_src_dir = base_dir.join("compiler");
+         normalize_path(&compiler_src_dir, "$(echo '$COMPILER_DIR')");
+
+-        if let Some(virtual_rust_source_base_dir) =
+-            option_env!("CFG_VIRTUAL_RUST_SOURCE_BASE_DIR").map(PathBuf::from)
+-        {
+-            normalize_path(&virtual_rust_source_base_dir.join("library"), "$(echo '$SRC_DIR')");
+-            normalize_path(&virtual_rust_source_base_dir.join("compiler"), "$(echo '$COMPILER_DIR')");
+-        }
++        normalize_path(&Path::new("$(cd ../build_sysroot/sysroot_src/library; pwd)"), "$(echo '$SRC_DIR')");
+
+         // Paths into the build directory
+         let test_build_dir = &self.config.build_base;
+EOF
+
+cat > config.toml <<EOF
+changelog-seen = 2
+
+[llvm]
+ninja = false
+
+[build]
+rustc = "$(pwd)/../build/rustc-clif"
+cargo = "$(rustup which cargo)"
+full-bootstrap = true
+local-rebuild = true
+
+[rust]
+codegen-backends = ["cranelift"]
+deny-warnings = false
+verbose-tests = false
+EOF
+popd
+
+# FIXME remove once inline asm is fully supported
+export RUSTFLAGS="$RUSTFLAGS --cfg=rustix_use_libc"