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Format linker args in a way that works for gcc and ld #52654

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Merged
bors merged 2 commits into from
Jul 26, 2018
Merged

Format linker args in a way that works for gcc and ld #52654

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22d0ab0
Pass multiple linker arguments rather than concatenate with commas; -…
alecmocatta Jul 23, 2018
296a179
break --subsystem=x into 2 args; closer to former presumably known-go…
alecmocatta Jul 24, 2018
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Pass multiple linker arguments rather than concatenate with commas; -… 
…l library -> -llibrary to work with apple's ld
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@alecmocatta
alecmocatta committed Jul 24, 2018
commit 22d0ab0bc3627e94e953a2be981295440b52289e
35 changes: 18 additions & 17 deletions src/librustc_codegen_llvm/back/linker.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -218,24 +218,26 @@ impl<'a> GccLinker<'a> {
}

impl<'a> Linker for GccLinker<'a> {
fn link_dylib(&mut self, lib: &str) { self.hint_dynamic(); self.cmd.arg("-l").arg(lib); }
fn link_staticlib(&mut self, lib: &str) { self.hint_static(); self.cmd.arg("-l").arg(lib); }
fn link_dylib(&mut self, lib: &str) { self.hint_dynamic(); self.cmd.arg(format!("-l{}",lib)); }
fn link_staticlib(&mut self, lib: &str) {
self.hint_static(); self.cmd.arg(format!("-l{}",lib));
}
fn link_rlib(&mut self, lib: &Path) { self.hint_static(); self.cmd.arg(lib); }
fn include_path(&mut self, path: &Path) { self.cmd.arg("-L").arg(path); }
fn framework_path(&mut self, path: &Path) { self.cmd.arg("-F").arg(path); }
fn output_filename(&mut self, path: &Path) { self.cmd.arg("-o").arg(path); }
fn add_object(&mut self, path: &Path) { self.cmd.arg(path); }
fn position_independent_executable(&mut self) { self.cmd.arg("-pie"); }
fn no_position_independent_executable(&mut self) { self.cmd.arg("-no-pie"); }
fn full_relro(&mut self) { self.linker_arg("-z,relro,-z,now"); }
fn partial_relro(&mut self) { self.linker_arg("-z,relro"); }
fn no_relro(&mut self) { self.linker_arg("-z,norelro"); }
fn full_relro(&mut self) { self.linker_arg("-zrelro"); self.linker_arg("-znow"); }
fn partial_relro(&mut self) { self.linker_arg("-zrelro"); }
fn no_relro(&mut self) { self.linker_arg("-znorelro"); }
fn build_static_executable(&mut self) { self.cmd.arg("-static"); }
fn args(&mut self, args: &[String]) { self.cmd.args(args); }

fn link_rust_dylib(&mut self, lib: &str, _path: &Path) {
self.hint_dynamic();
self.cmd.arg("-l").arg(lib);
self.cmd.arg(format!("-l{}",lib));
}

fn link_framework(&mut self, framework: &str) {
Expand All @@ -253,23 +255,22 @@ impl<'a> Linker for GccLinker<'a> {
self.hint_static();
let target = &self.sess.target.target;
if !target.options.is_like_osx {
self.linker_arg("--whole-archive").cmd.arg("-l").arg(lib);
self.linker_arg("--whole-archive").cmd.arg(format!("-l{}",lib));
self.linker_arg("--no-whole-archive");
} else {
// -force_load is the macOS equivalent of --whole-archive, but it
// involves passing the full path to the library to link.
let mut v = OsString::from("-force_load,");
v.push(&archive::find_library(lib, search_path, &self.sess));
self.linker_arg(&v);
self.linker_arg("-force_load");
let lib = archive::find_library(lib, search_path, &self.sess);
self.linker_arg(&lib);
}
}

fn link_whole_rlib(&mut self, lib: &Path) {
self.hint_static();
if self.sess.target.target.options.is_like_osx {
let mut v = OsString::from("-force_load,");
v.push(lib);
self.linker_arg(&v);
self.linker_arg("-force_load");
self.linker_arg(&lib);
} else {
self.linker_arg("--whole-archive").cmd.arg(lib);
self.linker_arg("--no-whole-archive");
Expand All @@ -294,8 +295,7 @@ impl<'a> Linker for GccLinker<'a> {
if self.sess.target.target.options.is_like_osx {
self.linker_arg("-dead_strip");
} else if self.sess.target.target.options.is_like_solaris {
self.linker_arg("-z");
self.linker_arg("ignore");
self.linker_arg("-zignore");

// If we're building a dylib, we don't use --gc-sections because LLVM
// has already done the best it can do, and we also don't want to
Expand Down Expand Up @@ -369,7 +369,8 @@ impl<'a> Linker for GccLinker<'a> {
// the right `-Wl,-install_name` with an `@rpath` in it.
if self.sess.opts.cg.rpath ||
self.sess.opts.debugging_opts.osx_rpath_install_name {
let mut v = OsString::from("-install_name,@rpath/");
self.linker_arg("-install_name");
let mut v = OsString::from("@rpath/");
v.push(out_filename.file_name().unwrap());
self.linker_arg(&v);
}
Expand Down Expand Up @@ -448,7 +449,7 @@ impl<'a> Linker for GccLinker<'a> {
}

fn subsystem(&mut self, subsystem: &str) {
self.linker_arg(&format!("--subsystem,{}", subsystem));
self.linker_arg(&format!("--subsystem={}", subsystem));
}

fn finalize(&mut self) -> Command {
Expand Down