diff options
| -rw-r--r-- | src/librustc_codegen_ssa/back/link.rs | 10 | ||||
| -rw-r--r-- | src/librustc_codegen_utils/link.rs | 2 | ||||
| -rw-r--r-- | src/librustc_interface/util.rs | 2 | ||||
| -rw-r--r-- | src/librustc_metadata/dependency_format.rs | 4 | ||||
| -rw-r--r-- | src/librustc_session/session.rs | 41 | ||||
| -rw-r--r-- | src/test/ui/proc-macro/musl-proc-macro.rs | 15 |
6 files changed, 57 insertions, 17 deletions
diff --git a/src/librustc_codegen_ssa/back/link.rs b/src/librustc_codegen_ssa/back/link.rs index 90601521b19..387312addfa 100644 --- a/src/librustc_codegen_ssa/back/link.rs +++ b/src/librustc_codegen_ssa/back/link.rs @@ -497,7 +497,7 @@ fn link_natively<'a, B: ArchiveBuilder<'a>>( cmd.args(args); } if let Some(args) = sess.target.target.options.pre_link_args_crt.get(&flavor) { - if sess.crt_static() { + if sess.crt_static(Some(crate_type)) { cmd.args(args); } } @@ -523,7 +523,7 @@ fn link_natively<'a, B: ArchiveBuilder<'a>>( cmd.arg(get_file_path(sess, obj)); } - if crate_type == config::CrateType::Executable && sess.crt_static() { + if crate_type == config::CrateType::Executable && sess.crt_static(Some(crate_type)) { for obj in &sess.target.target.options.pre_link_objects_exe_crt { cmd.arg(get_file_path(sess, obj)); } @@ -558,7 +558,7 @@ fn link_natively<'a, B: ArchiveBuilder<'a>>( for obj in &sess.target.target.options.post_link_objects { cmd.arg(get_file_path(sess, obj)); } - if sess.crt_static() { + if sess.crt_static(Some(crate_type)) { for obj in &sess.target.target.options.post_link_objects_crt { cmd.arg(get_file_path(sess, obj)); } @@ -1288,7 +1288,7 @@ fn link_args<'a, B: ArchiveBuilder<'a>>( let more_args = &sess.opts.cg.link_arg; let mut args = args.iter().chain(more_args.iter()).chain(used_link_args.iter()); - if is_pic(sess) && !sess.crt_static() && !args.any(|x| *x == "-static") { + if is_pic(sess) && !sess.crt_static(Some(crate_type)) && !args.any(|x| *x == "-static") { position_independent_executable = true; } } @@ -1373,7 +1373,7 @@ fn link_args<'a, B: ArchiveBuilder<'a>>( if crate_type != config::CrateType::Executable { cmd.build_dylib(out_filename); } - if crate_type == config::CrateType::Executable && sess.crt_static() { + if crate_type == config::CrateType::Executable && sess.crt_static(Some(crate_type)) { cmd.build_static_executable(); } diff --git a/src/librustc_codegen_utils/link.rs b/src/librustc_codegen_utils/link.rs index 524fb0a59c2..f80c19a79e2 100644 --- a/src/librustc_codegen_utils/link.rs +++ b/src/librustc_codegen_utils/link.rs @@ -167,7 +167,7 @@ pub fn invalid_output_for_target(sess: &Session, crate_type: config::CrateType) if !sess.target.target.options.dynamic_linking { return true; } - if sess.crt_static() && !sess.target.target.options.crt_static_allows_dylibs { + if sess.crt_static(Some(crate_type)) && !sess.target.target.options.crt_static_allows_dylibs { return true; } } diff --git a/src/librustc_interface/util.rs b/src/librustc_interface/util.rs index 10a8c0a63f1..ce0665a00ec 100644 --- a/src/librustc_interface/util.rs +++ b/src/librustc_interface/util.rs @@ -49,7 +49,7 @@ pub fn add_configuration( cfg.extend(codegen_backend.target_features(sess).into_iter().map(|feat| (tf, Some(feat)))); - if sess.crt_static_feature() { + if sess.crt_static_feature(None) { cfg.insert((tf, Some(Symbol::intern("crt-static")))); } } diff --git a/src/librustc_metadata/dependency_format.rs b/src/librustc_metadata/dependency_format.rs index 9e71839dbfd..13cda397f24 100644 --- a/src/librustc_metadata/dependency_format.rs +++ b/src/librustc_metadata/dependency_format.rs @@ -97,7 +97,7 @@ fn calculate_type(tcx: TyCtxt<'_>, ty: config::CrateType) -> DependencyList { // If the global prefer_dynamic switch is turned off, or the final // executable will be statically linked, prefer static crate linkage. - config::CrateType::Executable if !sess.opts.cg.prefer_dynamic || sess.crt_static() => { + config::CrateType::Executable if !sess.opts.cg.prefer_dynamic || sess.crt_static(Some(ty)) => { Linkage::Static } config::CrateType::Executable => Linkage::Dynamic, @@ -129,7 +129,7 @@ fn calculate_type(tcx: TyCtxt<'_>, ty: config::CrateType) -> DependencyList { // If any are not found, generate some nice pretty errors. if ty == config::CrateType::Staticlib || (ty == config::CrateType::Executable - && sess.crt_static() + && sess.crt_static(Some(ty)) && !sess.target.target.options.crt_static_allows_dylibs) { for &cnum in tcx.crates().iter() { diff --git a/src/librustc_session/session.rs b/src/librustc_session/session.rs index 2fb7977dce9..dcd9ae44e88 100644 --- a/src/librustc_session/session.rs +++ b/src/librustc_session/session.rs @@ -540,25 +540,50 @@ impl Session { .unwrap_or(self.opts.debug_assertions) } - pub fn crt_static(&self) -> bool { + /// Check whether this compile session and crate type use static crt. + pub fn crt_static(&self, crate_type: Option<config::CrateType>) -> bool { // If the target does not opt in to crt-static support, use its default. if self.target.target.options.crt_static_respected { - self.crt_static_feature() + self.crt_static_feature(crate_type) } else { self.target.target.options.crt_static_default } } - pub fn crt_static_feature(&self) -> bool { + /// Check whether this compile session and crate type use `crt-static` feature. + pub fn crt_static_feature(&self, crate_type: Option<config::CrateType>) -> bool { let requested_features = self.opts.cg.target_feature.split(','); let found_negative = requested_features.clone().any(|r| r == "-crt-static"); let found_positive = requested_features.clone().any(|r| r == "+crt-static"); - // If the target we're compiling for requests a static crt by default, - // then see if the `-crt-static` feature was passed to disable that. - // Otherwise if we don't have a static crt by default then see if the - // `+crt-static` feature was passed. - if self.target.target.options.crt_static_default { !found_negative } else { found_positive } + if self.target.target.options.crt_static_default { + // `proc-macro` always required to be compiled to dylibs. + // We don't use a static crt unless the `+crt-static` feature was passed. + if !self.target.target.options.crt_static_allows_dylibs { + match crate_type { + Some(config::CrateType::ProcMacro) => found_positive, + Some(_) => !found_negative, + None => { + // FIXME: When crate_type is not available, + // we use compiler options to determine the crate_type. + // We can't check `#![crate_type = "proc-macro"]` here. + if self.opts.crate_types.contains(&config::CrateType::ProcMacro) { + found_positive + } else { + !found_negative + } + } + } + } else { + // If the target we're compiling for requests a static crt by default, + // then see if the `-crt-static` feature was passed to disable that. + !found_negative + } + } else { + // If the target we're compiling for don't have a static crt by default then see if the + // `+crt-static` feature was passed. + found_positive + } } pub fn must_not_eliminate_frame_pointers(&self) -> bool { diff --git a/src/test/ui/proc-macro/musl-proc-macro.rs b/src/test/ui/proc-macro/musl-proc-macro.rs new file mode 100644 index 00000000000..44abfcf129b --- /dev/null +++ b/src/test/ui/proc-macro/musl-proc-macro.rs @@ -0,0 +1,15 @@ +// Test proc-macro crate can be built without addtional RUSTFLAGS +// on musl target + +// run-pass +// compile-flags: --target=x86_64-unknown-linux-musl +#![crate_type = "proc-macro"] + +extern crate proc_macro; + +use proc_macro::TokenStream; + +#[proc_macro_derive(Foo)] +pub fn derive_foo(input: TokenStream) -> TokenStream { + input +} |