60 lines
2.4 KiB
Diff
60 lines
2.4 KiB
Diff
From de93abe8a0d9dc7878a48f61b9e3ae4a923020f6 Mon Sep 17 00:00:00 2001
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From: q66 <daniel@octaforge.org>
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Date: Sun, 3 May 2020 18:08:09 +0200
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Subject: [PATCH 11/15] Use ELFv2 ABI on all powerpc64 targets
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This patches librustc_target so that ELFv2 is used everywhere, matching our
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LLVM. While this is not perfect (it does not allow rustc to compile legacy
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binaries), rustc never requests specific ABI from llvm in the first place,
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so at least match the environment we have.
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---
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compiler/rustc_target/src/abi/call/powerpc64.rs | 9 +--------
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.../rustc_target/src/spec/powerpc64_unknown_linux_gnu.rs | 6 +-----
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2 files changed, 2 insertions(+), 13 deletions(-)
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diff --git a/compiler/rustc_target/src/abi/call/powerpc64.rs b/compiler/rustc_target/src/abi/call/powerpc64.rs
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index c22ef9c8f..932172b2f 100644
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--- a/compiler/rustc_target/src/abi/call/powerpc64.rs
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+++ b/compiler/rustc_target/src/abi/call/powerpc64.rs
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@@ -119,14 +119,7 @@ where
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Ty: TyAbiInterface<'a, C> + Copy,
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C: HasDataLayout + HasTargetSpec,
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{
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- let abi = if cx.target_spec().env == "musl" {
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- ELFv2
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- } else {
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- match cx.data_layout().endian {
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- Endian::Big => ELFv1,
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- Endian::Little => ELFv2,
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- }
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- };
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+ let abi = ELFv2;
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if !fn_abi.ret.is_ignore() {
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classify_ret(cx, &mut fn_abi.ret, abi);
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diff --git a/compiler/rustc_target/src/spec/powerpc64_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/powerpc64_unknown_linux_gnu.rs
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index 24d5d187e..aa594b02e 100644
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--- a/compiler/rustc_target/src/spec/powerpc64_unknown_linux_gnu.rs
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+++ b/compiler/rustc_target/src/spec/powerpc64_unknown_linux_gnu.rs
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@@ -1,5 +1,5 @@
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use crate::abi::Endian;
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-use crate::spec::{LinkerFlavor, RelroLevel, Target, TargetOptions};
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+use crate::spec::{LinkerFlavor, Target, TargetOptions};
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pub fn target() -> Target {
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let mut base = super::linux_gnu_base::opts();
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@@ -7,10 +7,6 @@ pub fn target() -> Target {
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base.pre_link_args.entry(LinkerFlavor::Gcc).or_default().push("-m64".into());
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base.max_atomic_width = Some(64);
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- // ld.so in at least RHEL6 on ppc64 has a bug related to BIND_NOW, so only enable partial RELRO
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- // for now. https://github.com/rust-lang/rust/pull/43170#issuecomment-315411474
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- base.relro_level = RelroLevel::Partial;
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-
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Target {
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llvm_target: "powerpc64-unknown-linux-gnu".into(),
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pointer_width: 64,
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--
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2.37.2
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