diff options
Diffstat (limited to 'compiler/rustc_codegen_ssa/src')
| -rw-r--r-- | compiler/rustc_codegen_ssa/src/back/link.rs | 75 | ||||
| -rw-r--r-- | compiler/rustc_codegen_ssa/src/back/linker.rs | 82 |
2 files changed, 82 insertions, 75 deletions
diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs index bb57fca74a2..6131bb4baf5 100644 --- a/compiler/rustc_codegen_ssa/src/back/link.rs +++ b/compiler/rustc_codegen_ssa/src/back/link.rs @@ -23,8 +23,8 @@ use rustc_session::{filesearch, Session}; use rustc_span::symbol::Symbol; use rustc_span::DebuggerVisualizerFile; use rustc_target::spec::crt_objects::{CrtObjects, LinkSelfContainedDefault}; -use rustc_target::spec::{LinkOutputKind, LinkerFlavor, LldFlavor, SplitDebuginfo}; -use rustc_target::spec::{PanicStrategy, RelocModel, RelroLevel, SanitizerSet, Target}; +use rustc_target::spec::{Cc, LinkOutputKind, LinkerFlavor, LinkerFlavorCli, Lld, PanicStrategy}; +use rustc_target::spec::{RelocModel, RelroLevel, SanitizerSet, SplitDebuginfo, Target}; use super::archive::{ArchiveBuilder, ArchiveBuilderBuilder}; use super::command::Command; @@ -748,8 +748,7 @@ fn link_natively<'a>( // then it should not default to linking executables as pie. Different // versions of gcc seem to use different quotes in the error message so // don't check for them. - if sess.target.linker_is_gnu - && flavor != LinkerFlavor::Ld + if matches!(flavor, LinkerFlavor::Gnu(Cc::Yes, _)) && unknown_arg_regex.is_match(&out) && out.contains("-no-pie") && cmd.get_args().iter().any(|e| e.to_string_lossy() == "-no-pie") @@ -767,8 +766,7 @@ fn link_natively<'a>( // Detect '-static-pie' used with an older version of gcc or clang not supporting it. // Fallback from '-static-pie' to '-static' in that case. - if sess.target.linker_is_gnu - && flavor != LinkerFlavor::Ld + if matches!(flavor, LinkerFlavor::Gnu(Cc::Yes, _)) && unknown_arg_regex.is_match(&out) && (out.contains("-static-pie") || out.contains("--no-dynamic-linker")) && cmd.get_args().iter().any(|e| e.to_string_lossy() == "-static-pie") @@ -903,7 +901,7 @@ fn link_natively<'a>( // install the Visual Studio build tools. if let Some(code) = prog.status.code() { if sess.target.is_like_msvc - && flavor == LinkerFlavor::Msvc + && flavor == LinkerFlavor::Msvc(Lld::No) // Respect the command line override && sess.opts.cg.linker.is_none() // Match exactly "link.exe" @@ -1187,7 +1185,10 @@ pub fn linker_and_flavor(sess: &Session) -> (PathBuf, LinkerFlavor) { // only the linker flavor is known; use the default linker for the selected flavor (None, Some(flavor)) => Some(( PathBuf::from(match flavor { - LinkerFlavor::Gcc => { + LinkerFlavor::Gnu(Cc::Yes, _) + | LinkerFlavor::Darwin(Cc::Yes, _) + | LinkerFlavor::WasmLld(Cc::Yes) + | LinkerFlavor::Unix(Cc::Yes) => { if cfg!(any(target_os = "solaris", target_os = "illumos")) { // On historical Solaris systems, "cc" may have // been Sun Studio, which is not flag-compatible @@ -1200,9 +1201,14 @@ pub fn linker_and_flavor(sess: &Session) -> (PathBuf, LinkerFlavor) { "cc" } } - LinkerFlavor::Ld => "ld", - LinkerFlavor::Lld(_) => "lld", - LinkerFlavor::Msvc => "link.exe", + LinkerFlavor::Gnu(_, Lld::Yes) + | LinkerFlavor::Darwin(_, Lld::Yes) + | LinkerFlavor::WasmLld(..) + | LinkerFlavor::Msvc(Lld::Yes) => "lld", + LinkerFlavor::Gnu(..) | LinkerFlavor::Darwin(..) | LinkerFlavor::Unix(..) => { + "ld" + } + LinkerFlavor::Msvc(..) => "link.exe", LinkerFlavor::EmCc => { if cfg!(windows) { "emcc.bat" @@ -1227,15 +1233,20 @@ pub fn linker_and_flavor(sess: &Session) -> (PathBuf, LinkerFlavor) { || stem == "clang" || stem.ends_with("-clang") { - LinkerFlavor::Gcc + LinkerFlavor::from_cli(LinkerFlavorCli::Gcc, &sess.target) } else if stem == "wasm-ld" || stem.ends_with("-wasm-ld") { - LinkerFlavor::Lld(LldFlavor::Wasm) - } else if stem == "ld" || stem == "ld.lld" || stem.ends_with("-ld") { - LinkerFlavor::Ld - } else if stem == "link" || stem == "lld-link" { - LinkerFlavor::Msvc + LinkerFlavor::WasmLld(Cc::No) + } else if stem == "ld" || stem.ends_with("-ld") { + LinkerFlavor::from_cli(LinkerFlavorCli::Ld, &sess.target) + } else if stem == "ld.lld" { + LinkerFlavor::Gnu(Cc::No, Lld::Yes) + } else if stem == "link" { + LinkerFlavor::Msvc(Lld::No) + } else if stem == "lld-link" { + LinkerFlavor::Msvc(Lld::Yes) } else if stem == "lld" || stem == "rust-lld" { - LinkerFlavor::Lld(sess.target.lld_flavor) + let lld_flavor = sess.target.linker_flavor.lld_flavor(); + LinkerFlavor::from_cli(LinkerFlavorCli::Lld(lld_flavor), &sess.target) } else { // fall back to the value in the target spec sess.target.linker_flavor @@ -1249,7 +1260,8 @@ pub fn linker_and_flavor(sess: &Session) -> (PathBuf, LinkerFlavor) { // linker and linker flavor specified via command line have precedence over what the target // specification specifies - let linker_flavor = sess.opts.cg.linker_flavor.map(LinkerFlavor::from_cli); + let linker_flavor = + sess.opts.cg.linker_flavor.map(|flavor| LinkerFlavor::from_cli(flavor, &sess.target)); if let Some(ret) = infer_from(sess, sess.opts.cg.linker.clone(), linker_flavor) { return ret; } @@ -1320,7 +1332,7 @@ fn print_native_static_libs(sess: &Session, all_native_libs: &[NativeLib]) { let verbatim = lib.verbatim.unwrap_or(false); if sess.target.is_like_msvc { Some(format!("{}{}", name, if verbatim { "" } else { ".lib" })) - } else if sess.target.linker_is_gnu { + } else if sess.target.linker_flavor.is_gnu() { Some(format!("-l{}{}", if verbatim { ":" } else { "" }, name)) } else { Some(format!("-l{}", name)) @@ -1607,7 +1619,7 @@ fn add_pre_link_objects( let empty = Default::default(); let objects = if self_contained { &opts.pre_link_objects_self_contained - } else if !(sess.target.os == "fuchsia" && flavor == LinkerFlavor::Gcc) { + } else if !(sess.target.os == "fuchsia" && matches!(flavor, LinkerFlavor::Gnu(Cc::Yes, _))) { &opts.pre_link_objects } else { &empty @@ -1647,7 +1659,7 @@ fn add_pre_link_args(cmd: &mut dyn Linker, sess: &Session, flavor: LinkerFlavor) fn add_link_script(cmd: &mut dyn Linker, sess: &Session, tmpdir: &Path, crate_type: CrateType) { match (crate_type, &sess.target.link_script) { (CrateType::Cdylib | CrateType::Executable, Some(script)) => { - if !sess.target.linker_is_gnu { + if !sess.target.linker_flavor.is_gnu() { sess.fatal("can only use link script when linking with GNU-like linker"); } @@ -1890,7 +1902,7 @@ fn add_rpath_args( out_filename: out_filename.to_path_buf(), has_rpath: sess.target.has_rpath, is_like_osx: sess.target.is_like_osx, - linker_is_gnu: sess.target.linker_is_gnu, + linker_is_gnu: sess.target.linker_flavor.is_gnu(), }; cmd.args(&rpath::get_rpath_flags(&mut rpath_config)); } @@ -2104,7 +2116,7 @@ fn add_order_independent_options( if sess.target.os == "fuchsia" && crate_type == CrateType::Executable - && flavor != LinkerFlavor::Gcc + && !matches!(flavor, LinkerFlavor::Gnu(Cc::Yes, _)) { let prefix = if sess.opts.unstable_opts.sanitizer.contains(SanitizerSet::ADDRESS) { "asan/" @@ -2717,12 +2729,12 @@ fn add_apple_sdk(cmd: &mut dyn Linker, sess: &Session, flavor: LinkerFlavor) { let llvm_target = &sess.target.llvm_target; if sess.target.vendor != "apple" || !matches!(os.as_ref(), "ios" | "tvos" | "watchos" | "macos") - || (flavor != LinkerFlavor::Gcc && flavor != LinkerFlavor::Lld(LldFlavor::Ld64)) + || !matches!(flavor, LinkerFlavor::Darwin(..)) { return; } - if os == "macos" && flavor != LinkerFlavor::Lld(LldFlavor::Ld64) { + if os == "macos" && !matches!(flavor, LinkerFlavor::Darwin(Cc::No, _)) { return; } @@ -2756,10 +2768,10 @@ fn add_apple_sdk(cmd: &mut dyn Linker, sess: &Session, flavor: LinkerFlavor) { }; match flavor { - LinkerFlavor::Gcc => { + LinkerFlavor::Darwin(Cc::Yes, _) => { cmd.args(&["-isysroot", &sdk_root, "-Wl,-syslibroot", &sdk_root]); } - LinkerFlavor::Lld(LldFlavor::Ld64) => { + LinkerFlavor::Darwin(Cc::No, _) => { cmd.args(&["-syslibroot", &sdk_root]); } _ => unreachable!(), @@ -2822,7 +2834,10 @@ fn get_apple_sdk_root(sdk_name: &str) -> Result<String, String> { fn add_gcc_ld_path(cmd: &mut dyn Linker, sess: &Session, flavor: LinkerFlavor) { if let Some(ld_impl) = sess.opts.unstable_opts.gcc_ld { - if let LinkerFlavor::Gcc = flavor { + if let LinkerFlavor::Gnu(Cc::Yes, _) + | LinkerFlavor::Darwin(Cc::Yes, _) + | LinkerFlavor::WasmLld(Cc::Yes) = flavor + { match ld_impl { LdImpl::Lld => { // Implement the "self-contained" part of -Zgcc-ld @@ -2837,7 +2852,7 @@ fn add_gcc_ld_path(cmd: &mut dyn Linker, sess: &Session, flavor: LinkerFlavor) { // Implement the "linker flavor" part of -Zgcc-ld // by asking cc to use some kind of lld. cmd.arg("-fuse-ld=lld"); - if sess.target.lld_flavor != LldFlavor::Ld { + if !flavor.is_gnu() { // Tell clang to use a non-default LLD flavor. // Gcc doesn't understand the target option, but we currently assume // that gcc is not used for Apple and Wasm targets (#97402). diff --git a/compiler/rustc_codegen_ssa/src/back/linker.rs b/compiler/rustc_codegen_ssa/src/back/linker.rs index 2cd746ccb6a..c71d332475a 100644 --- a/compiler/rustc_codegen_ssa/src/back/linker.rs +++ b/compiler/rustc_codegen_ssa/src/back/linker.rs @@ -16,7 +16,7 @@ use rustc_middle::middle::exported_symbols::{ExportedSymbol, SymbolExportInfo, S use rustc_middle::ty::TyCtxt; use rustc_session::config::{self, CrateType, DebugInfo, LinkerPluginLto, Lto, OptLevel, Strip}; use rustc_session::Session; -use rustc_target::spec::{LinkOutputKind, LinkerFlavor, LldFlavor}; +use rustc_target::spec::{Cc, LinkOutputKind, LinkerFlavor, Lld}; use cc::windows_registry; @@ -56,8 +56,13 @@ pub fn get_linker<'a>( let mut cmd = match linker.to_str() { Some(linker) if cfg!(windows) && linker.ends_with(".bat") => Command::bat_script(linker), _ => match flavor { - LinkerFlavor::Lld(f) => Command::lld(linker, f), - LinkerFlavor::Msvc if sess.opts.cg.linker.is_none() && sess.target.linker.is_none() => { + LinkerFlavor::Gnu(Cc::No, Lld::Yes) + | LinkerFlavor::Darwin(Cc::No, Lld::Yes) + | LinkerFlavor::WasmLld(Cc::No) + | LinkerFlavor::Msvc(Lld::Yes) => Command::lld(linker, flavor.lld_flavor()), + LinkerFlavor::Msvc(Lld::No) + if sess.opts.cg.linker.is_none() && sess.target.linker.is_none() => + { Command::new(msvc_tool.as_ref().map_or(linker, |t| t.path())) } _ => Command::new(linker), @@ -68,9 +73,7 @@ pub fn get_linker<'a>( // To comply with the Windows App Certification Kit, // MSVC needs to link with the Store versions of the runtime libraries (vcruntime, msvcrt, etc). let t = &sess.target; - if (flavor == LinkerFlavor::Msvc || flavor == LinkerFlavor::Lld(LldFlavor::Link)) - && t.vendor == "uwp" - { + if matches!(flavor, LinkerFlavor::Msvc(..)) && t.vendor == "uwp" { if let Some(ref tool) = msvc_tool { let original_path = tool.path(); if let Some(ref root_lib_path) = original_path.ancestors().nth(4) { @@ -126,23 +129,22 @@ pub fn get_linker<'a>( // to the linker args construction. assert!(cmd.get_args().is_empty() || sess.target.vendor == "uwp"); match flavor { - LinkerFlavor::Gcc => { - Box::new(GccLinker { cmd, sess, target_cpu, hinted_static: false, is_ld: false }) - as Box<dyn Linker> - } - LinkerFlavor::Ld if sess.target.os == "l4re" => { + LinkerFlavor::Unix(Cc::No) if sess.target.os == "l4re" => { Box::new(L4Bender::new(cmd, sess)) as Box<dyn Linker> } - LinkerFlavor::Lld(LldFlavor::Ld) - | LinkerFlavor::Lld(LldFlavor::Ld64) - | LinkerFlavor::Ld => { - Box::new(GccLinker { cmd, sess, target_cpu, hinted_static: false, is_ld: true }) - as Box<dyn Linker> - } - LinkerFlavor::Lld(LldFlavor::Link) | LinkerFlavor::Msvc => { - Box::new(MsvcLinker { cmd, sess }) as Box<dyn Linker> - } - LinkerFlavor::Lld(LldFlavor::Wasm) => Box::new(WasmLd::new(cmd, sess)) as Box<dyn Linker>, + LinkerFlavor::WasmLld(Cc::No) => Box::new(WasmLd::new(cmd, sess)) as Box<dyn Linker>, + LinkerFlavor::Gnu(cc, _) + | LinkerFlavor::Darwin(cc, _) + | LinkerFlavor::WasmLld(cc) + | LinkerFlavor::Unix(cc) => Box::new(GccLinker { + cmd, + sess, + target_cpu, + hinted_static: false, + is_ld: cc == Cc::No, + is_gnu: flavor.is_gnu(), + }) as Box<dyn Linker>, + LinkerFlavor::Msvc(..) => Box::new(MsvcLinker { cmd, sess }) as Box<dyn Linker>, LinkerFlavor::EmCc => Box::new(EmLinker { cmd, sess }) as Box<dyn Linker>, LinkerFlavor::Bpf => Box::new(BpfLinker { cmd, sess }) as Box<dyn Linker>, LinkerFlavor::Ptx => Box::new(PtxLinker { cmd, sess }) as Box<dyn Linker>, @@ -211,6 +213,7 @@ pub struct GccLinker<'a> { hinted_static: bool, // Keeps track of the current hinting mode. // Link as ld is_ld: bool, + is_gnu: bool, } impl<'a> GccLinker<'a> { @@ -359,7 +362,7 @@ impl<'a> Linker for GccLinker<'a> { fn set_output_kind(&mut self, output_kind: LinkOutputKind, out_filename: &Path) { match output_kind { LinkOutputKind::DynamicNoPicExe => { - if !self.is_ld && self.sess.target.linker_is_gnu { + if !self.is_ld && self.is_gnu { self.cmd.arg("-no-pie"); } } @@ -373,7 +376,7 @@ impl<'a> Linker for GccLinker<'a> { LinkOutputKind::StaticNoPicExe => { // `-static` works for both gcc wrapper and ld. self.cmd.arg("-static"); - if !self.is_ld && self.sess.target.linker_is_gnu { + if !self.is_ld && self.is_gnu { self.cmd.arg("-no-pie"); } } @@ -432,31 +435,25 @@ impl<'a> Linker for GccLinker<'a> { // has -needed-l{} / -needed_library {} // but we have no way to detect that here. self.sess.warn("`as-needed` modifier not implemented yet for ld64"); - } else if self.sess.target.linker_is_gnu && !self.sess.target.is_like_windows { + } else if self.is_gnu && !self.sess.target.is_like_windows { self.linker_arg("--no-as-needed"); } else { self.sess.warn("`as-needed` modifier not supported for current linker"); } } self.hint_dynamic(); - self.cmd.arg(format!( - "-l{}{lib}", - if verbatim && self.sess.target.linker_is_gnu { ":" } else { "" }, - )); + self.cmd.arg(format!("-l{}{lib}", if verbatim && self.is_gnu { ":" } else { "" },)); if !as_needed { if self.sess.target.is_like_osx { // See above FIXME comment - } else if self.sess.target.linker_is_gnu && !self.sess.target.is_like_windows { + } else if self.is_gnu && !self.sess.target.is_like_windows { self.linker_arg("--as-needed"); } } } fn link_staticlib(&mut self, lib: &str, verbatim: bool) { self.hint_static(); - self.cmd.arg(format!( - "-l{}{lib}", - if verbatim && self.sess.target.linker_is_gnu { ":" } else { "" }, - )); + self.cmd.arg(format!("-l{}{lib}", if verbatim && self.is_gnu { ":" } else { "" },)); } fn link_rlib(&mut self, lib: &Path) { self.hint_static(); @@ -511,10 +508,7 @@ impl<'a> Linker for GccLinker<'a> { let target = &self.sess.target; if !target.is_like_osx { self.linker_arg("--whole-archive"); - self.cmd.arg(format!( - "-l{}{lib}", - if verbatim && self.sess.target.linker_is_gnu { ":" } else { "" }, - )); + self.cmd.arg(format!("-l{}{lib}", if verbatim && self.is_gnu { ":" } else { "" },)); self.linker_arg("--no-whole-archive"); } else { // -force_load is the macOS equivalent of --whole-archive, but it @@ -559,21 +553,19 @@ impl<'a> Linker for GccLinker<'a> { // eliminate the metadata. If we're building an executable, however, // --gc-sections drops the size of hello world from 1.8MB to 597K, a 67% // reduction. - } else if (self.sess.target.linker_is_gnu || self.sess.target.is_like_wasm) - && !keep_metadata - { + } else if (self.is_gnu || self.sess.target.is_like_wasm) && !keep_metadata { self.linker_arg("--gc-sections"); } } fn no_gc_sections(&mut self) { - if self.sess.target.linker_is_gnu || self.sess.target.is_like_wasm { + if self.is_gnu || self.sess.target.is_like_wasm { self.linker_arg("--no-gc-sections"); } } fn optimize(&mut self) { - if !self.sess.target.linker_is_gnu && !self.sess.target.is_like_wasm { + if !self.is_gnu && !self.sess.target.is_like_wasm { return; } @@ -587,7 +579,7 @@ impl<'a> Linker for GccLinker<'a> { } fn pgo_gen(&mut self) { - if !self.sess.target.linker_is_gnu { + if !self.is_gnu { return; } @@ -758,13 +750,13 @@ impl<'a> Linker for GccLinker<'a> { fn add_no_exec(&mut self) { if self.sess.target.is_like_windows { self.linker_arg("--nxcompat"); - } else if self.sess.target.linker_is_gnu { + } else if self.is_gnu { self.linker_arg("-znoexecstack"); } } fn add_as_needed(&mut self) { - if self.sess.target.linker_is_gnu && !self.sess.target.is_like_windows { + if self.is_gnu && !self.sess.target.is_like_windows { self.linker_arg("--as-needed"); } else if self.sess.target.is_like_solaris { // -z ignore is the Solaris equivalent to the GNU ld --as-needed option |