66 lines
3.1 KiB
Diff
66 lines
3.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: "Jan Alexander Steffens (heftig)" <heftig@archlinux.org>
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Date: Fri, 12 Mar 2021 17:31:56 +0100
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Subject: [PATCH] compiler: Change LLVM targets
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- Change x86_64-unknown-linux-gnu to use x86_64-pc-linux-gnu
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- Change i686-unknown-linux-gnu to use i686-pc-linux-gnu
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Reintroduce the aliasing that was removed in 1.52.0 and alias the -pc-
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triples to the -unknown- triples. This avoids defining proper -pc-
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targets, as things break when this is done:
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- The crate ecosystem expects the -unknown- targets. Making -pc-
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rustc's host triple (and thus default target) would break various
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crates.
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- Firefox's build breaks when the host triple (from
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`rustc --version --verbose`) is different from the target triple
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(from `rustc --print target-list`) that best matches autoconf.
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---
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compiler/rustc_session/src/config.rs | 4 ++++
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.../rustc_target/src/spec/targets/i686_unknown_linux_gnu.rs | 2 +-
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.../rustc_target/src/spec/targets/x86_64_unknown_linux_gnu.rs | 2 +-
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3 files changed, 6 insertions(+), 2 deletions(-)
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diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs
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index b7ee2c980254..3be7b748718d 100644
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--- a/compiler/rustc_session/src/config.rs
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+++ b/compiler/rustc_session/src/config.rs
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@@ -2222,6 +2222,10 @@ pub fn parse_target_triple(early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches
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early_dcx.early_fatal(format!("target file {path:?} does not exist"))
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})
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}
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+ Some(s) if &s == "x86_64-pc-linux-gnu" => {
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+ TargetTriple::from_triple("x86_64-unknown-linux-gnu")
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+ }
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+ Some(s) if &s == "i686-pc-linux-gnu" => TargetTriple::from_triple("i686-unknown-linux-gnu"),
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Some(target) => TargetTriple::TargetTriple(target),
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_ => TargetTriple::from_triple(host_triple()),
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}
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diff --git a/compiler/rustc_target/src/spec/targets/i686_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/targets/i686_unknown_linux_gnu.rs
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index 1d4916cabfdf..4caab818efdb 100644
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--- a/compiler/rustc_target/src/spec/targets/i686_unknown_linux_gnu.rs
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+++ b/compiler/rustc_target/src/spec/targets/i686_unknown_linux_gnu.rs
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@@ -9,7 +9,7 @@ pub fn target() -> Target {
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base.stack_probes = StackProbeType::Inline;
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Target {
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- llvm_target: "i686-unknown-linux-gnu".into(),
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+ llvm_target: "i686-pc-linux-gnu".into(),
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metadata: crate::spec::TargetMetadata {
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description: None,
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tier: None,
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diff --git a/compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_gnu.rs
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index 98374023dc57..0e08b8c32229 100644
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--- a/compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_gnu.rs
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+++ b/compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_gnu.rs
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@@ -18,7 +18,7 @@ pub fn target() -> Target {
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base.supports_xray = true;
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Target {
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- llvm_target: "x86_64-unknown-linux-gnu".into(),
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+ llvm_target: "x86_64-pc-linux-gnu".into(),
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metadata: crate::spec::TargetMetadata {
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description: None,
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tier: None,
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