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Make partial RELRO default on ppc64 due to segfault 

On at least RHEL6 there is a segfault caused by the older ld.so version
when BIND_NOW is used, so use partial RELRO by default on ppc64
architectures for now.

Signed-off-by: Johannes Löthberg <johannes@kyriasis.com>
This commit is contained in:
Johannes Löthberg 2017-07-14 22:06:36 +02:00
parent 94b9cc90fb
commit ecf3f6d4de
1 changed files with 5 additions and 1 deletions
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6
src/librustc_back/target/powerpc64_unknown_linux_gnu.rs
View File

@ -9,7 +9,7 @@
// except according to those terms.
use LinkerFlavor;
use target::{Target, TargetResult};
use target::{Target, TargetResult, RelroLevel};
pub fn target() -> TargetResult {
let mut base = super::linux_base::opts();
@ -17,6 +17,10 @@ pub fn target() -> TargetResult {
base.pre_link_args.get_mut(&LinkerFlavor::Gcc).unwrap().push("-m64".to_string());
base.max_atomic_width = Some(64);
// ld.so in at least RHEL6 on ppc64 has a bug related to BIND_NOW, so only enable partial RELRO
// for now. https://github.com/rust-lang/rust/pull/43170#issuecomment-315411474
base.relro_level = RelroLevel::Partial;
// see #36994
base.exe_allocation_crate = None;