From 71d98a8620b89f1efa3f597622a34396fd4966f8 Mon Sep 17 00:00:00 2001 From: Colin Finck Date: Fri, 9 Aug 2024 15:02:18 +0200 Subject: [PATCH] Ship MinGW-w64 runtime DLLs along with `rust-lld.exe` for `-pc-windows-gnu` targets `rust-lld.exe` built for `x86_64-pc-windows-gnu` depends on `libgcc_s_seh-1.dll` and `libwinpthread-1.dll` from MinGW-w64. Until now, they were not shipped alongside `rust-lld.exe`, and you could not run `rust-lld.exe` on most systems. This problem didn't surface until now because: * Most targets don't use `rust-lld` by default. * Some people had these DLLs in their `PATH` from some other MinGW binary. * `rustup` used to add `bin` to the `PATH`, which contains these DLLs for `rustc.exe`. But it no longer does that: https://github.com/rust-lang/rustup/commit/ce3c09a0cb126e2c65a3bb2a3bbf3f098b4c23a2 Fixes #125809 --- src/bootstrap/src/core/build_steps/dist.rs | 37 ++++++++++++++-------- 1 file changed, 24 insertions(+), 13 deletions(-) diff --git a/src/bootstrap/src/core/build_steps/dist.rs b/src/bootstrap/src/core/build_steps/dist.rs index 530eb9b446a43..0e4b0b4ac8391 100644 --- a/src/bootstrap/src/core/build_steps/dist.rs +++ b/src/bootstrap/src/core/build_steps/dist.rs @@ -268,34 +268,45 @@ fn make_win_dist( let target_libs = find_files(&target_libs, &lib_path); // Copy runtime dlls next to rustc.exe - let dist_bin_dir = rust_root.join("bin/"); - fs::create_dir_all(&dist_bin_dir).expect("creating dist_bin_dir failed"); - for src in rustc_dlls { - builder.copy_link_to_folder(&src, &dist_bin_dir); + let rust_bin_dir = rust_root.join("bin/"); + fs::create_dir_all(&rust_bin_dir).expect("creating rust_bin_dir failed"); + for src in &rustc_dlls { + builder.copy_link_to_folder(src, &rust_bin_dir); + } + + if builder.config.lld_enabled { + // rust-lld.exe also needs runtime dlls + let rust_target_bin_dir = rust_root.join("lib/rustlib").join(target).join("bin"); + fs::create_dir_all(&rust_target_bin_dir).expect("creating rust_target_bin_dir failed"); + for src in &rustc_dlls { + builder.copy_link_to_folder(src, &rust_target_bin_dir); + } } //Copy platform tools to platform-specific bin directory - let target_bin_dir = - plat_root.join("lib").join("rustlib").join(target).join("bin").join("self-contained"); - fs::create_dir_all(&target_bin_dir).expect("creating target_bin_dir failed"); + let plat_target_bin_self_contained_dir = + plat_root.join("lib/rustlib").join(target).join("bin/self-contained"); + fs::create_dir_all(&plat_target_bin_self_contained_dir) + .expect("creating plat_target_bin_self_contained_dir failed"); for src in target_tools { - builder.copy_link_to_folder(&src, &target_bin_dir); + builder.copy_link_to_folder(&src, &plat_target_bin_self_contained_dir); } // Warn windows-gnu users that the bundled GCC cannot compile C files builder.create( - &target_bin_dir.join("GCC-WARNING.txt"), + &plat_target_bin_self_contained_dir.join("GCC-WARNING.txt"), "gcc.exe contained in this folder cannot be used for compiling C files - it is only \ used as a linker. In order to be able to compile projects containing C code use \ the GCC provided by MinGW or Cygwin.", ); //Copy platform libs to platform-specific lib directory - let target_lib_dir = - plat_root.join("lib").join("rustlib").join(target).join("lib").join("self-contained"); - fs::create_dir_all(&target_lib_dir).expect("creating target_lib_dir failed"); + let plat_target_lib_self_contained_dir = + plat_root.join("lib/rustlib").join(target).join("lib/self-contained"); + fs::create_dir_all(&plat_target_lib_self_contained_dir) + .expect("creating plat_target_lib_self_contained_dir failed"); for src in target_libs { - builder.copy_link_to_folder(&src, &target_lib_dir); + builder.copy_link_to_folder(&src, &plat_target_lib_self_contained_dir); } }