Reduce usage of Symbol in the linker code
Interning here doesn't save us anything. It rather costs a bit of time.
This commit is contained in:
parent
de57dbcefd
commit
f688f4d1e4
4 changed files with 55 additions and 60 deletions
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@ -1,13 +1,12 @@
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use rustc_data_structures::temp_dir::MaybeTempDir;
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use rustc_session::cstore::DllImport;
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use rustc_session::Session;
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use rustc_span::symbol::Symbol;
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use std::io;
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use std::path::{Path, PathBuf};
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pub(super) fn find_library(
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name: Symbol,
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name: &str,
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verbatim: bool,
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search_paths: &[PathBuf],
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sess: &Session,
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@ -7,7 +7,6 @@ use std::io;
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use std::mem;
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use std::process::{self, Output};
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use rustc_span::symbol::Symbol;
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use rustc_target::spec::LldFlavor;
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#[derive(Clone)]
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@ -47,11 +46,6 @@ impl Command {
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self
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}
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pub fn sym_arg(&mut self, arg: Symbol) -> &mut Command {
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self.arg(arg.as_str());
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self
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}
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pub fn args<I>(&mut self, args: I) -> &mut Command
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where
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I: IntoIterator<Item: AsRef<OsStr>>,
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@ -354,7 +354,7 @@ fn link_rlib<'a, B: ArchiveBuilder<'a>>(
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}
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if let Some(name) = lib.name {
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let location =
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find_library(name, lib.verbatim.unwrap_or(false), &lib_search_paths, sess);
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find_library(name.as_str(), lib.verbatim.unwrap_or(false), &lib_search_paths, sess);
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ab.add_archive(&location, |_| false).unwrap_or_else(|e| {
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sess.fatal(&format!(
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"failed to add native library {}: {}",
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@ -1117,7 +1117,7 @@ fn link_sanitizer_runtime(sess: &Session, linker: &mut dyn Linker, name: &str) {
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let path = find_sanitizer_runtime(&sess, &filename);
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let rpath = path.to_str().expect("non-utf8 component in path");
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linker.args(&["-Wl,-rpath", "-Xlinker", rpath]);
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linker.link_dylib(Symbol::intern(&filename), false, true);
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linker.link_dylib(&filename, false, true);
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} else {
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let filename = format!("librustc{}_rt.{}.a", channel, name);
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let path = find_sanitizer_runtime(&sess, &filename).join(&filename);
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@ -2199,6 +2199,7 @@ fn add_local_native_libraries(
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let Some(name) = lib.name else {
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continue;
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};
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let name = name.as_str();
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// Skip if this library is the same as the last.
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last = if (lib.name, lib.kind, lib.verbatim) == last {
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@ -2362,6 +2363,7 @@ fn add_upstream_rust_crates<'a, B: ArchiveBuilder<'a>>(
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let Some(name) = lib.name else {
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continue;
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};
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let name = name.as_str();
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if !relevant_lib(sess, lib) {
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continue;
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}
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@ -2519,7 +2521,7 @@ fn add_upstream_rust_crates<'a, B: ArchiveBuilder<'a>>(
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}
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let filestem = cratepath.file_stem().unwrap().to_str().unwrap();
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cmd.link_rust_dylib(
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Symbol::intern(&unlib(&sess.target, filestem)),
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&unlib(&sess.target, filestem),
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parent.unwrap_or_else(|| Path::new("")),
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);
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}
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@ -2551,6 +2553,7 @@ fn add_upstream_native_libraries(
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let Some(name) = lib.name else {
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continue;
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};
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let name = name.as_str();
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if !relevant_lib(sess, &lib) {
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continue;
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}
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@ -16,7 +16,6 @@ use rustc_middle::middle::exported_symbols::{ExportedSymbol, SymbolExportInfo, S
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use rustc_middle::ty::TyCtxt;
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use rustc_session::config::{self, CrateType, DebugInfo, LinkerPluginLto, Lto, OptLevel, Strip};
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use rustc_session::Session;
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use rustc_span::symbol::Symbol;
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use rustc_target::spec::{LinkOutputKind, LinkerFlavor, LldFlavor};
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use cc::windows_registry;
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@ -163,13 +162,13 @@ pub fn get_linker<'a>(
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pub trait Linker {
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fn cmd(&mut self) -> &mut Command;
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fn set_output_kind(&mut self, output_kind: LinkOutputKind, out_filename: &Path);
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fn link_dylib(&mut self, lib: Symbol, verbatim: bool, as_needed: bool);
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fn link_rust_dylib(&mut self, lib: Symbol, path: &Path);
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fn link_framework(&mut self, framework: Symbol, as_needed: bool);
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fn link_staticlib(&mut self, lib: Symbol, verbatim: bool);
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fn link_dylib(&mut self, lib: &str, verbatim: bool, as_needed: bool);
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fn link_rust_dylib(&mut self, lib: &str, path: &Path);
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fn link_framework(&mut self, framework: &str, as_needed: bool);
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fn link_staticlib(&mut self, lib: &str, verbatim: bool);
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fn link_rlib(&mut self, lib: &Path);
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fn link_whole_rlib(&mut self, lib: &Path);
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fn link_whole_staticlib(&mut self, lib: Symbol, verbatim: bool, search_path: &[PathBuf]);
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fn link_whole_staticlib(&mut self, lib: &str, verbatim: bool, search_path: &[PathBuf]);
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fn include_path(&mut self, path: &Path);
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fn framework_path(&mut self, path: &Path);
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fn output_filename(&mut self, path: &Path);
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@ -423,8 +422,8 @@ impl<'a> Linker for GccLinker<'a> {
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}
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}
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fn link_dylib(&mut self, lib: Symbol, verbatim: bool, as_needed: bool) {
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if self.sess.target.os == "illumos" && lib.as_str() == "c" {
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fn link_dylib(&mut self, lib: &str, verbatim: bool, as_needed: bool) {
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if self.sess.target.os == "illumos" && lib == "c" {
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// libc will be added via late_link_args on illumos so that it will
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// appear last in the library search order.
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// FIXME: This should be replaced by a more complete and generic
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@ -454,7 +453,7 @@ impl<'a> Linker for GccLinker<'a> {
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}
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}
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}
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fn link_staticlib(&mut self, lib: Symbol, verbatim: bool) {
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fn link_staticlib(&mut self, lib: &str, verbatim: bool) {
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self.hint_static();
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self.cmd.arg(format!("-l{}{}", if verbatim { ":" } else { "" }, lib));
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}
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@ -484,20 +483,20 @@ impl<'a> Linker for GccLinker<'a> {
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self.linker_arg("-znorelro");
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}
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fn link_rust_dylib(&mut self, lib: Symbol, _path: &Path) {
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fn link_rust_dylib(&mut self, lib: &str, _path: &Path) {
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self.hint_dynamic();
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self.cmd.arg(format!("-l{}", lib));
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}
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fn link_framework(&mut self, framework: Symbol, as_needed: bool) {
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fn link_framework(&mut self, framework: &str, as_needed: bool) {
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self.hint_dynamic();
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if !as_needed {
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// FIXME(81490): ld64 as of macOS 11 supports the -needed_framework
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// flag but we have no way to detect that here.
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// self.cmd.arg("-needed_framework").sym_arg(framework);
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// self.cmd.arg("-needed_framework").arg(framework);
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self.sess.warn("`as-needed` modifier not implemented yet for ld64");
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}
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self.cmd.arg("-framework").sym_arg(framework);
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self.cmd.arg("-framework").arg(framework);
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}
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// Here we explicitly ask that the entire archive is included into the
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@ -506,7 +505,7 @@ impl<'a> Linker for GccLinker<'a> {
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// don't otherwise explicitly reference them. This can occur for
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// libraries which are just providing bindings, libraries with generic
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// functions, etc.
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fn link_whole_staticlib(&mut self, lib: Symbol, verbatim: bool, search_path: &[PathBuf]) {
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fn link_whole_staticlib(&mut self, lib: &str, verbatim: bool, search_path: &[PathBuf]) {
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self.hint_static();
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let target = &self.sess.target;
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if !target.is_like_osx {
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@ -836,11 +835,11 @@ impl<'a> Linker for MsvcLinker<'a> {
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self.cmd.arg("/OPT:NOREF,NOICF");
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}
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fn link_dylib(&mut self, lib: Symbol, verbatim: bool, _as_needed: bool) {
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fn link_dylib(&mut self, lib: &str, verbatim: bool, _as_needed: bool) {
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self.cmd.arg(format!("{}{}", lib, if verbatim { "" } else { ".lib" }));
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}
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fn link_rust_dylib(&mut self, lib: Symbol, path: &Path) {
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fn link_rust_dylib(&mut self, lib: &str, path: &Path) {
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// When producing a dll, the MSVC linker may not actually emit a
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// `foo.lib` file if the dll doesn't actually export any symbols, so we
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// check to see if the file is there and just omit linking to it if it's
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@ -851,7 +850,7 @@ impl<'a> Linker for MsvcLinker<'a> {
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}
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}
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fn link_staticlib(&mut self, lib: Symbol, verbatim: bool) {
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fn link_staticlib(&mut self, lib: &str, verbatim: bool) {
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self.cmd.arg(format!("{}{}", lib, if verbatim { "" } else { ".lib" }));
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}
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@ -890,11 +889,11 @@ impl<'a> Linker for MsvcLinker<'a> {
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fn framework_path(&mut self, _path: &Path) {
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bug!("frameworks are not supported on windows")
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}
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fn link_framework(&mut self, _framework: Symbol, _as_needed: bool) {
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fn link_framework(&mut self, _framework: &str, _as_needed: bool) {
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bug!("frameworks are not supported on windows")
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}
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fn link_whole_staticlib(&mut self, lib: Symbol, verbatim: bool, _search_path: &[PathBuf]) {
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fn link_whole_staticlib(&mut self, lib: &str, verbatim: bool, _search_path: &[PathBuf]) {
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self.cmd.arg(format!("/WHOLEARCHIVE:{}{}", lib, if verbatim { "" } else { ".lib" }));
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}
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fn link_whole_rlib(&mut self, path: &Path) {
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@ -1047,8 +1046,8 @@ impl<'a> Linker for EmLinker<'a> {
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self.cmd.arg("-L").arg(path);
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}
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fn link_staticlib(&mut self, lib: Symbol, _verbatim: bool) {
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self.cmd.arg("-l").sym_arg(lib);
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fn link_staticlib(&mut self, lib: &str, _verbatim: bool) {
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self.cmd.arg("-l").arg(lib);
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}
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fn output_filename(&mut self, path: &Path) {
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@ -1059,12 +1058,12 @@ impl<'a> Linker for EmLinker<'a> {
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self.cmd.arg(path);
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}
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fn link_dylib(&mut self, lib: Symbol, verbatim: bool, _as_needed: bool) {
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fn link_dylib(&mut self, lib: &str, verbatim: bool, _as_needed: bool) {
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// Emscripten always links statically
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self.link_staticlib(lib, verbatim);
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}
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fn link_whole_staticlib(&mut self, lib: Symbol, verbatim: bool, _search_path: &[PathBuf]) {
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fn link_whole_staticlib(&mut self, lib: &str, verbatim: bool, _search_path: &[PathBuf]) {
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// not supported?
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self.link_staticlib(lib, verbatim);
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}
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@ -1074,7 +1073,7 @@ impl<'a> Linker for EmLinker<'a> {
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self.link_rlib(lib);
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}
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fn link_rust_dylib(&mut self, lib: Symbol, _path: &Path) {
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fn link_rust_dylib(&mut self, lib: &str, _path: &Path) {
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self.link_dylib(lib, false, true);
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}
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@ -1098,7 +1097,7 @@ impl<'a> Linker for EmLinker<'a> {
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bug!("frameworks are not supported on Emscripten")
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}
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fn link_framework(&mut self, _framework: Symbol, _as_needed: bool) {
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fn link_framework(&mut self, _framework: &str, _as_needed: bool) {
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bug!("frameworks are not supported on Emscripten")
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}
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@ -1237,12 +1236,12 @@ impl<'a> Linker for WasmLd<'a> {
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}
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}
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fn link_dylib(&mut self, lib: Symbol, _verbatim: bool, _as_needed: bool) {
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self.cmd.arg("-l").sym_arg(lib);
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fn link_dylib(&mut self, lib: &str, _verbatim: bool, _as_needed: bool) {
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self.cmd.arg("-l").arg(lib);
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}
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fn link_staticlib(&mut self, lib: Symbol, _verbatim: bool) {
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self.cmd.arg("-l").sym_arg(lib);
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fn link_staticlib(&mut self, lib: &str, _verbatim: bool) {
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self.cmd.arg("-l").arg(lib);
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}
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fn link_rlib(&mut self, lib: &Path) {
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@ -1271,16 +1270,16 @@ impl<'a> Linker for WasmLd<'a> {
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fn no_relro(&mut self) {}
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fn link_rust_dylib(&mut self, lib: Symbol, _path: &Path) {
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self.cmd.arg("-l").sym_arg(lib);
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fn link_rust_dylib(&mut self, lib: &str, _path: &Path) {
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self.cmd.arg("-l").arg(lib);
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}
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fn link_framework(&mut self, _framework: Symbol, _as_needed: bool) {
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fn link_framework(&mut self, _framework: &str, _as_needed: bool) {
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panic!("frameworks not supported")
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}
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fn link_whole_staticlib(&mut self, lib: Symbol, _verbatim: bool, _search_path: &[PathBuf]) {
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self.cmd.arg("-l").sym_arg(lib);
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fn link_whole_staticlib(&mut self, lib: &str, _verbatim: bool, _search_path: &[PathBuf]) {
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self.cmd.arg("-l").arg(lib);
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}
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fn link_whole_rlib(&mut self, lib: &Path) {
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@ -1360,10 +1359,10 @@ pub struct L4Bender<'a> {
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}
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impl<'a> Linker for L4Bender<'a> {
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fn link_dylib(&mut self, _lib: Symbol, _verbatim: bool, _as_needed: bool) {
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fn link_dylib(&mut self, _lib: &str, _verbatim: bool, _as_needed: bool) {
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bug!("dylibs are not supported on L4Re");
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}
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fn link_staticlib(&mut self, lib: Symbol, _verbatim: bool) {
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fn link_staticlib(&mut self, lib: &str, _verbatim: bool) {
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self.hint_static();
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self.cmd.arg(format!("-PC{}", lib));
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}
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@ -1404,15 +1403,15 @@ impl<'a> Linker for L4Bender<'a> {
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fn set_output_kind(&mut self, _output_kind: LinkOutputKind, _out_filename: &Path) {}
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fn link_rust_dylib(&mut self, _: Symbol, _: &Path) {
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fn link_rust_dylib(&mut self, _: &str, _: &Path) {
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panic!("Rust dylibs not supported");
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}
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fn link_framework(&mut self, _framework: Symbol, _as_needed: bool) {
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fn link_framework(&mut self, _framework: &str, _as_needed: bool) {
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bug!("frameworks not supported on L4Re");
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}
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fn link_whole_staticlib(&mut self, lib: Symbol, _verbatim: bool, _search_path: &[PathBuf]) {
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fn link_whole_staticlib(&mut self, lib: &str, _verbatim: bool, _search_path: &[PathBuf]) {
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self.hint_static();
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self.cmd.arg("--whole-archive").arg(format!("-l{}", lib));
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self.cmd.arg("--no-whole-archive");
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@ -1617,19 +1616,19 @@ impl<'a> Linker for PtxLinker<'a> {
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self.cmd.arg("-o").arg(path);
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}
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fn link_dylib(&mut self, _lib: Symbol, _verbatim: bool, _as_needed: bool) {
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fn link_dylib(&mut self, _lib: &str, _verbatim: bool, _as_needed: bool) {
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panic!("external dylibs not supported")
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}
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fn link_rust_dylib(&mut self, _lib: Symbol, _path: &Path) {
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fn link_rust_dylib(&mut self, _lib: &str, _path: &Path) {
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panic!("external dylibs not supported")
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}
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fn link_staticlib(&mut self, _lib: Symbol, _verbatim: bool) {
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fn link_staticlib(&mut self, _lib: &str, _verbatim: bool) {
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panic!("staticlibs not supported")
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}
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fn link_whole_staticlib(&mut self, _lib: Symbol, _verbatim: bool, _search_path: &[PathBuf]) {
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fn link_whole_staticlib(&mut self, _lib: &str, _verbatim: bool, _search_path: &[PathBuf]) {
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panic!("staticlibs not supported")
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}
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@ -1637,7 +1636,7 @@ impl<'a> Linker for PtxLinker<'a> {
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panic!("frameworks not supported")
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}
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fn link_framework(&mut self, _framework: Symbol, _as_needed: bool) {
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fn link_framework(&mut self, _framework: &str, _as_needed: bool) {
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panic!("frameworks not supported")
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}
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@ -1717,19 +1716,19 @@ impl<'a> Linker for BpfLinker<'a> {
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self.cmd.arg("-o").arg(path);
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}
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fn link_dylib(&mut self, _lib: Symbol, _verbatim: bool, _as_needed: bool) {
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fn link_dylib(&mut self, _lib: &str, _verbatim: bool, _as_needed: bool) {
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panic!("external dylibs not supported")
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}
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fn link_rust_dylib(&mut self, _lib: Symbol, _path: &Path) {
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fn link_rust_dylib(&mut self, _lib: &str, _path: &Path) {
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panic!("external dylibs not supported")
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}
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fn link_staticlib(&mut self, _lib: Symbol, _verbatim: bool) {
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fn link_staticlib(&mut self, _lib: &str, _verbatim: bool) {
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panic!("staticlibs not supported")
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}
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fn link_whole_staticlib(&mut self, _lib: Symbol, _verbatim: bool, _search_path: &[PathBuf]) {
|
||||
fn link_whole_staticlib(&mut self, _lib: &str, _verbatim: bool, _search_path: &[PathBuf]) {
|
||||
panic!("staticlibs not supported")
|
||||
}
|
||||
|
||||
|
@ -1737,7 +1736,7 @@ impl<'a> Linker for BpfLinker<'a> {
|
|||
panic!("frameworks not supported")
|
||||
}
|
||||
|
||||
fn link_framework(&mut self, _framework: Symbol, _as_needed: bool) {
|
||||
fn link_framework(&mut self, _framework: &str, _as_needed: bool) {
|
||||
panic!("frameworks not supported")
|
||||
}
|
||||
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue