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54 lines
2.8 KiB
54 lines
2.8 KiB
1 month ago
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From 184d61d2c12aa2db01de9a14ccb2be0cfae5039b Mon Sep 17 00:00:00 2001
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From: Josh Stone <jistone@redhat.com>
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Date: Fri, 9 Jun 2023 15:23:08 -0700
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Subject: [PATCH] Let environment variables override some default CPUs
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---
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.../src/spec/targets/powerpc64le_unknown_linux_gnu.rs | 2 +-
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.../rustc_target/src/spec/targets/s390x_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, 3 insertions(+), 3 deletions(-)
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diff --git a/compiler/rustc_target/src/spec/targets/powerpc64le_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/targets/powerpc64le_unknown_linux_gnu.rs
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index 194c3170e683..9806ca78297c 100644
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--- a/compiler/rustc_target/src/spec/targets/powerpc64le_unknown_linux_gnu.rs
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+++ b/compiler/rustc_target/src/spec/targets/powerpc64le_unknown_linux_gnu.rs
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@@ -2,7 +2,7 @@
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pub fn target() -> Target {
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let mut base = base::linux_gnu::opts();
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- base.cpu = "ppc64le".into();
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+ base.cpu = option_env!("RUSTC_TARGET_CPU_PPC64LE").unwrap_or("ppc64le").into();
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base.add_pre_link_args(LinkerFlavor::Gnu(Cc::Yes, Lld::No), &["-m64"]);
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base.max_atomic_width = Some(64);
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base.stack_probes = StackProbeType::Inline;
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diff --git a/compiler/rustc_target/src/spec/targets/s390x_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/targets/s390x_unknown_linux_gnu.rs
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index 6fc410eb2235..c8f84edb9715 100644
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--- a/compiler/rustc_target/src/spec/targets/s390x_unknown_linux_gnu.rs
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+++ b/compiler/rustc_target/src/spec/targets/s390x_unknown_linux_gnu.rs
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@@ -5,7 +5,7 @@ pub fn target() -> Target {
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let mut base = base::linux_gnu::opts();
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base.endian = Endian::Big;
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// z10 is the oldest CPU supported by LLVM
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- base.cpu = "z10".into();
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+ base.cpu = option_env!("RUSTC_TARGET_CPU_S390X").unwrap_or("z10").into();
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// FIXME: The ABI implementation in cabi_s390x.rs is for now hard-coded to assume the no-vector
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// ABI. Pass the -vector feature string to LLVM to respect this assumption. On LLVM < 16, we
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// also strip v128 from the data_layout below to match the older LLVM's expectation.
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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 80e267c163fa..8436a00e66d5 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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@@ -2,7 +2,7 @@
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pub fn target() -> Target {
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let mut base = base::linux_gnu::opts();
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- base.cpu = "x86-64".into();
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+ base.cpu = option_env!("RUSTC_TARGET_CPU_X86_64").unwrap_or("x86-64").into();
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base.plt_by_default = false;
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base.max_atomic_width = Some(64);
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base.add_pre_link_args(LinkerFlavor::Gnu(Cc::Yes, Lld::No), &["-m64"]);
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--
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2.41.0
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