diff options
Diffstat (limited to 'compiler/rustc_interface/src')
| -rw-r--r-- | compiler/rustc_interface/src/interface.rs | 61 | ||||
| -rw-r--r-- | compiler/rustc_interface/src/tests.rs | 11 | ||||
| -rw-r--r-- | compiler/rustc_interface/src/util.rs | 47 |
3 files changed, 83 insertions, 36 deletions
diff --git a/compiler/rustc_interface/src/interface.rs b/compiler/rustc_interface/src/interface.rs index 284d965979e..1a82e6c6910 100644 --- a/compiler/rustc_interface/src/interface.rs +++ b/compiler/rustc_interface/src/interface.rs @@ -16,7 +16,7 @@ use rustc_parse::maybe_new_parser_from_source_str; use rustc_query_impl::QueryCtxt; use rustc_query_system::query::print_query_stack; use rustc_session::config::{self, Cfg, CheckCfg, ExpectedValues, Input, OutFileName}; -use rustc_session::filesearch::sysroot_candidates; +use rustc_session::filesearch::{self, sysroot_candidates}; use rustc_session::parse::ParseSess; use rustc_session::{lint, CompilerIO, EarlyDiagCtxt, Session}; use rustc_span::source_map::FileLoader; @@ -339,16 +339,53 @@ pub fn run_compiler<R: Send>(config: Config, f: impl FnOnce(&Compiler) -> R + Se let early_dcx = EarlyDiagCtxt::new(config.opts.error_format); - let codegen_backend = if let Some(make_codegen_backend) = config.make_codegen_backend { - make_codegen_backend(&config.opts) - } else { - util::get_codegen_backend( - &early_dcx, - &config.opts.maybe_sysroot, - config.opts.unstable_opts.codegen_backend.as_deref(), - ) + let sysroot = filesearch::materialize_sysroot(config.opts.maybe_sysroot.clone()); + + let (codegen_backend, target_override) = match config.make_codegen_backend { + None => { + // Build a target without override, so that it can override the backend if needed + let target = + config::build_target_config(&early_dcx, &config.opts, None, &sysroot); + + let backend = util::get_codegen_backend( + &early_dcx, + &sysroot, + config.opts.unstable_opts.codegen_backend.as_deref(), + &target, + ); + + // target_override is documented to be called before init(), so this is okay + let target_override = backend.target_override(&config.opts); + + // Assert that we don't use target's override of the backend and + // backend's override of the target at the same time + if config.opts.unstable_opts.codegen_backend.is_none() + && target.default_codegen_backend.is_some() + && target_override.is_some() + { + rustc_middle::bug!( + "Codegen backend requested target override even though the target requested the backend" + ); + } + + (backend, target_override) + } + Some(make_codegen_backend) => { + // N.B. `make_codegen_backend` takes precedence over `target.default_codegen_backend`, + // which is ignored in this case. + let backend = make_codegen_backend(&config.opts); + + // target_override is documented to be called before init(), so this is okay + let target_override = backend.target_override(&config.opts); + + (backend, target_override) + } }; + // Re-build target with the (potential) override + let target_cfg = + config::build_target_config(&early_dcx, &config.opts, target_override, &sysroot); + let temps_dir = config.opts.unstable_opts.temps_dir.as_deref().map(PathBuf::from); let bundle = match rustc_errors::fluent_bundle( @@ -367,9 +404,6 @@ pub fn run_compiler<R: Send>(config: Config, f: impl FnOnce(&Compiler) -> R + Se let mut locale_resources = Vec::from(config.locale_resources); locale_resources.push(codegen_backend.locale_resource()); - // target_override is documented to be called before init(), so this is okay - let target_override = codegen_backend.target_override(&config.opts); - let mut sess = rustc_session::build_session( early_dcx, config.opts, @@ -384,7 +418,8 @@ pub fn run_compiler<R: Send>(config: Config, f: impl FnOnce(&Compiler) -> R + Se locale_resources, config.lint_caps, config.file_loader, - target_override, + target_cfg, + sysroot, util::rustc_version_str().unwrap_or("unknown"), config.ice_file, config.using_internal_features, diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs index c5376f224e3..42fff01c11c 100644 --- a/compiler/rustc_interface/src/tests.rs +++ b/compiler/rustc_interface/src/tests.rs @@ -13,7 +13,7 @@ use rustc_session::config::{ use rustc_session::lint::Level; use rustc_session::search_paths::SearchPath; use rustc_session::utils::{CanonicalizedPath, NativeLib, NativeLibKind}; -use rustc_session::{build_session, getopts, CompilerIO, EarlyDiagCtxt, Session}; +use rustc_session::{build_session, filesearch, getopts, CompilerIO, EarlyDiagCtxt, Session}; use rustc_span::edition::{Edition, DEFAULT_EDITION}; use rustc_span::symbol::sym; use rustc_span::{FileName, SourceFileHashAlgorithm}; @@ -37,6 +37,12 @@ fn mk_session(matches: getopts::Matches) -> (Session, Cfg) { output_file: None, temps_dir, }; + + let sysroot = filesearch::materialize_sysroot(sessopts.maybe_sysroot.clone()); + + let target_cfg = + rustc_session::config::build_target_config(&early_dcx, &sessopts, None, &sysroot); + let sess = build_session( early_dcx, sessopts, @@ -46,7 +52,8 @@ fn mk_session(matches: getopts::Matches) -> (Session, Cfg) { vec![], Default::default(), None, - None, + target_cfg, + sysroot, "", None, Arc::default(), diff --git a/compiler/rustc_interface/src/util.rs b/compiler/rustc_interface/src/util.rs index 23bd2dac57e..829b00aabc1 100644 --- a/compiler/rustc_interface/src/util.rs +++ b/compiler/rustc_interface/src/util.rs @@ -14,13 +14,14 @@ use rustc_session::{filesearch, output, Session}; use rustc_span::edit_distance::find_best_match_for_name; use rustc_span::edition::Edition; use rustc_span::symbol::{sym, Symbol}; +use rustc_target::spec::Target; use session::EarlyDiagCtxt; -use std::env; use std::env::consts::{DLL_PREFIX, DLL_SUFFIX}; use std::path::{Path, PathBuf}; use std::sync::atomic::{AtomicBool, Ordering}; use std::sync::OnceLock; use std::thread; +use std::{env, iter}; /// Function pointer type that constructs a new CodegenBackend. pub type MakeBackendFn = fn() -> Box<dyn CodegenBackend>; @@ -195,21 +196,25 @@ fn load_backend_from_dylib(early_dcx: &EarlyDiagCtxt, path: &Path) -> MakeBacken /// A name of `None` indicates that the default backend should be used. pub fn get_codegen_backend( early_dcx: &EarlyDiagCtxt, - maybe_sysroot: &Option<PathBuf>, + sysroot: &Path, backend_name: Option<&str>, + target: &Target, ) -> Box<dyn CodegenBackend> { static LOAD: OnceLock<unsafe fn() -> Box<dyn CodegenBackend>> = OnceLock::new(); let load = LOAD.get_or_init(|| { - let default_codegen_backend = option_env!("CFG_DEFAULT_CODEGEN_BACKEND").unwrap_or("llvm"); + let backend = backend_name + .or(target.default_codegen_backend.as_deref()) + .or(option_env!("CFG_DEFAULT_CODEGEN_BACKEND")) + .unwrap_or("llvm"); - match backend_name.unwrap_or(default_codegen_backend) { + match backend { filename if filename.contains('.') => { load_backend_from_dylib(early_dcx, filename.as_ref()) } #[cfg(feature = "llvm")] "llvm" => rustc_codegen_llvm::LlvmCodegenBackend::new, - backend_name => get_codegen_sysroot(early_dcx, maybe_sysroot, backend_name), + backend_name => get_codegen_sysroot(early_dcx, sysroot, backend_name), } }); @@ -244,7 +249,7 @@ fn get_rustc_path_inner(bin_path: &str) -> Option<PathBuf> { #[allow(rustc::untranslatable_diagnostic)] // FIXME: make this translatable fn get_codegen_sysroot( early_dcx: &EarlyDiagCtxt, - maybe_sysroot: &Option<PathBuf>, + sysroot: &Path, backend_name: &str, ) -> MakeBackendFn { // For now we only allow this function to be called once as it'll dlopen a @@ -261,28 +266,28 @@ fn get_codegen_sysroot( let target = session::config::host_triple(); let sysroot_candidates = sysroot_candidates(); - let sysroot = maybe_sysroot - .iter() - .chain(sysroot_candidates.iter()) + let sysroot = iter::once(sysroot) + .chain(sysroot_candidates.iter().map(<_>::as_ref)) .map(|sysroot| { filesearch::make_target_lib_path(sysroot, target).with_file_name("codegen-backends") }) .find(|f| { info!("codegen backend candidate: {}", f.display()); f.exists() - }); - let sysroot = sysroot.unwrap_or_else(|| { - let candidates = sysroot_candidates - .iter() - .map(|p| p.display().to_string()) - .collect::<Vec<_>>() - .join("\n* "); - let err = format!( - "failed to find a `codegen-backends` folder \ + }) + .unwrap_or_else(|| { + let candidates = sysroot_candidates + .iter() + .map(|p| p.display().to_string()) + .collect::<Vec<_>>() + .join("\n* "); + let err = format!( + "failed to find a `codegen-backends` folder \ in the sysroot candidates:\n* {candidates}" - ); - early_dcx.early_fatal(err); - }); + ); + early_dcx.early_fatal(err); + }); + info!("probing {} for a codegen backend", sysroot.display()); let d = sysroot.read_dir().unwrap_or_else(|e| { |