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| author | Josh Triplett <josh@joshtriplett.org> | 2020-09-20 23:02:38 -0700 |
|---|---|---|
| committer | Josh Triplett <josh@joshtriplett.org> | 2020-10-04 22:12:08 -0700 |
| commit | a3944a0abd134a0f2bcba656fcf9c487ed9fcbaf (patch) | |
| tree | ad7c1afc14ae33c5916f4bd31872ffd6217fdd22 | |
| parent | 9d952cbe953468be20bbe4404ffc55cb39bfb96e (diff) | |
| download | rust-a3944a0abd134a0f2bcba656fcf9c487ed9fcbaf.tar.gz rust-a3944a0abd134a0f2bcba656fcf9c487ed9fcbaf.zip | |
Support static linking with glibc and target-feature=+crt-static
With this change, it's possible to build on a linux-gnu target and pass RUSTFLAGS='-C target-feature=+crt-static' or the equivalent via a `.cargo/config.toml` file, and get a statically linked executable. This requires libc 0.2.79, which adds support for static linking with glibc. Add `crt_static_respected` to the `linux_base` target spec. Update `android_base` and `linux_musl_base` accordingly. Avoid enabling crt_static_respected on Android platforms, since that hasn't been tested.
| -rw-r--r-- | compiler/rustc_target/src/spec/android_base.rs | 1 | ||||
| -rw-r--r-- | compiler/rustc_target/src/spec/linux_base.rs | 1 | ||||
| -rw-r--r-- | compiler/rustc_target/src/spec/linux_musl_base.rs | 2 |
3 files changed, 2 insertions, 2 deletions
diff --git a/compiler/rustc_target/src/spec/android_base.rs b/compiler/rustc_target/src/spec/android_base.rs index 0ea99af83a1..bb11ce8ef28 100644 --- a/compiler/rustc_target/src/spec/android_base.rs +++ b/compiler/rustc_target/src/spec/android_base.rs @@ -12,5 +12,6 @@ pub fn opts() -> TargetOptions { base.position_independent_executables = true; base.has_elf_tls = false; base.requires_uwtable = true; + base.crt_static_respected = false; base } diff --git a/compiler/rustc_target/src/spec/linux_base.rs b/compiler/rustc_target/src/spec/linux_base.rs index 52892fc3592..7ad972b0692 100644 --- a/compiler/rustc_target/src/spec/linux_base.rs +++ b/compiler/rustc_target/src/spec/linux_base.rs @@ -28,6 +28,7 @@ pub fn opts() -> TargetOptions { position_independent_executables: true, relro_level: RelroLevel::Full, has_elf_tls: true, + crt_static_respected: true, ..Default::default() } } diff --git a/compiler/rustc_target/src/spec/linux_musl_base.rs b/compiler/rustc_target/src/spec/linux_musl_base.rs index b90e91d2901..16cc3b762f6 100644 --- a/compiler/rustc_target/src/spec/linux_musl_base.rs +++ b/compiler/rustc_target/src/spec/linux_musl_base.rs @@ -10,8 +10,6 @@ pub fn opts() -> TargetOptions { // These targets statically link libc by default base.crt_static_default = true; - // These targets allow the user to choose between static and dynamic linking. - base.crt_static_respected = true; base } |