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Rollup merge of #128876 - ColinFinck:rust-lld-with-runtime-dlls, r=Kobzol,petrochenkov,jieyouxu

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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: ce3c09a0cb

Fixes #125809

try-job: dist-x86_64-mingw
This commit is contained in:
Matthias Krüger 2024-08-23 06:26:52 +02:00 committed by GitHub
commit 6a1418aafe
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GPG Key ID: B5690EEEBB952194
1 changed files with 24 additions and 13 deletions
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37
src/bootstrap/src/core/build_steps/dist.rs
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@ -269,34 +269,45 @@ 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);
}
}