--- a/src/bootstrap/sanity.rs +++ b/src/bootstrap/sanity.rs @@ -21,7 +21,6 @@ use std::collections::HashSet; use std::env; use std::ffi::{OsStr, OsString}; -use std::fs; use std::process::Command; use build_helper::output; @@ -132,27 +132,6 @@ panic!("the iOS target is only supported on OSX"); } - // Make sure musl-root is valid if specified - if target.contains("musl") && !target.contains("mips") { - match build.musl_root(target) { - Some(root) => { - if fs::metadata(root.join("lib/libc.a")).is_err() { - panic!("couldn't find libc.a in musl dir: {}", - root.join("lib").display()); - } - if fs::metadata(root.join("lib/libunwind.a")).is_err() { - panic!("couldn't find libunwind.a in musl dir: {}", - root.join("lib").display()); - } - } - None => { - panic!("when targeting MUSL either the rust.musl-root \ - option or the target.$TARGET.musl-root option must \ - be specified in config.toml") - } - } - } - if target.contains("msvc") { // There are three builds of cmake on windows: MSVC, MinGW, and // Cygwin. The Cygwin build does not have generators for Visual --- a/src/liblibc/src/unix/mod.rs +++ b/src/liblibc/src/unix/mod.rs @@ -209,10 +209,6 @@ } else if #[cfg(all(not(stdbuild), feature = "use_std"))] { // cargo build, don't pull in anything extra as the libstd dep // already pulls in all libs. - } else if #[cfg(any(all(target_env = "musl", not(target_arch = "mips"))))] { - #[link(name = "c", kind = "static", cfg(target_feature = "crt-static"))] - #[link(name = "c", cfg(not(target_feature = "crt-static")))] - extern {} } else if #[cfg(target_os = "emscripten")] { #[link(name = "c")] extern {} --- a/src/librustc_back/target/x86_64_unknown_linux_musl.rs +++ b/src/librustc_back/target/x86_64_unknown_linux_musl.rs @@ -11,7 +11,7 @@ use target::{Target, TargetResult}; pub fn target() -> TargetResult { - let mut base = super::linux_musl_base::opts(); + let mut base = super::linux_base::opts(); base.cpu = "x86-64".to_string(); base.max_atomic_width = 64; base.pre_link_args.push("-m64".to_string()); --- a/src/libunwind/build.rs +++ b/src/libunwind/build.rs @@ -16,9 +16,7 @@ let target = env::var("TARGET").unwrap(); if target.contains("linux") { - if target.contains("musl") && !target.contains("mips") { - println!("cargo:rustc-link-lib=static=unwind"); - } else if !target.contains("android") { + if !target.contains("android") { println!("cargo:rustc-link-lib=gcc_s"); } } else if target.contains("freebsd") { --- rustc-1.19.0-src/src/bootstrap/compile.rs.orig +++ rustc-1.19.0-src/src/bootstrap/compile.rs @@ -114,10 +114,6 @@ let libdir = build.sysroot_libdir(target_compiler, target); add_to_sysroot(&libdir, &libstd_stamp(build, compiler, target)); - if target.contains("musl") && !target.contains("mips") { - copy_musl_third_party_objects(build, target, &libdir); - } - if build.config.sanitizers && compiler.stage != 0 && target == "x86_64-apple-darwin" { // The sanitizers are only built in stage1 or above, so the dylibs will // be missing in stage0 and causes panic. See the `std()` function above @@ -126,15 +122,6 @@ } } -/// Copies the crt(1,i,n).o startup objects -/// -/// Only required for musl targets that statically link to libc -fn copy_musl_third_party_objects(build: &Build, target: &str, into: &Path) { - for &obj in &["crt1.o", "crti.o", "crtn.o"] { - copy(&build.musl_root(target).unwrap().join("lib").join(obj), &into.join(obj)); - } -} - fn copy_apple_sanitizer_dylibs(native_dir: &Path, platform: &str, into: &Path) { for &sanitizer in &["asan", "tsan"] { let filename = format!("libclang_rt.{}_{}_dynamic.dylib", sanitizer, platform);