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Avoid infinite recursion when cranelift is the default codegen backend

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This commit is contained in:
bjorn3 2023-10-29 18:53:38 +00:00
parent 35453ac0eb
commit 69c6aa560c
3 changed files with 8 additions and 3 deletions
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4
scripts/setup_rust_fork.sh
View File

@ -4,7 +4,9 @@ set -e
# Compiletest expects all standard library paths to start with /rustc/FAKE_PREFIX.
# CG_CLIF_STDLIB_REMAP_PATH_PREFIX will cause cg_clif's build system to pass
# --remap-path-prefix to handle this.
CG_CLIF_STDLIB_REMAP_PATH_PREFIX=/rustc/FAKE_PREFIX ./y.sh build
# CG_CLIF_FORCE_GNU_AS will force usage of as instead of the LLVM backend of rustc as we
# the LLVM backend isn't compiled in here.
CG_CLIF_FORCE_GNU_AS=1 CG_CLIF_STDLIB_REMAP_PATH_PREFIX=/rustc/FAKE_PREFIX ./y.sh build
echo "[SETUP] Rust fork"
git clone https://github.com/rust-lang/rust.git || true

4
scripts/test_bootstrap.sh
View File

@ -11,5 +11,7 @@ rm -r compiler/rustc_codegen_cranelift/{Cargo.*,src}
cp ../Cargo.* compiler/rustc_codegen_cranelift/
cp -r ../src compiler/rustc_codegen_cranelift/src
./x.py build --stage 1 library/std
# CG_CLIF_FORCE_GNU_AS will force usage of as instead of the LLVM backend of rustc as we
# the LLVM backend isn't compiled in here.
CG_CLIF_FORCE_GNU_AS=1 ./x.py build --stage 1 library/std
popd

3
src/global_asm.rs
View File

@ -140,7 +140,7 @@ pub(crate) fn compile_global_asm(
);
// Assemble `global_asm`
if false {
if option_env!("CG_CLIF_FORCE_GNU_AS").is_some() {
let mut child = Command::new(&config.assembler)
.arg("-o")
.arg(&global_asm_object_file)
@ -164,6 +164,7 @@ pub(crate) fn compile_global_asm(
.arg(&global_asm_object_file)
.arg("-")
.arg("-Abad_asm_style")
.arg("-Zcodegen-backend=llvm")
.stdin(Stdio::piped())
.spawn()
.expect("Failed to spawn `as`.");