bjoernager/rust
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Rollup merge of #113480 - Sword-Destiny:master, r=petrochenkov

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add aarch64-unknown-teeos target

TEEOS is a mini os run in TrustZone, for trusted/security apps. The libc of TEEOS is a part of musl. The kernel of TEEOS is micro kernel.

This MR is to add a target for teeos.

MRs for libc and rust-std are in progress.

Compiler team MCP: [MCP](https://github.com/rust-lang/compiler-team/issues/652)
This commit is contained in:
Matthias Krüger 2023-08-08 21:44:42 +02:00 • committed by GitHub
commit 088763643f
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9 changed files with 153 additions and 3 deletions
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16
compiler/rustc_target/src/spec/aarch64_unknown_teeos.rs Normal file
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@ -0,0 +1,16 @@
use crate::spec::Target;
pub fn target() -> Target {
let mut base = super::teeos_base::opts();
base.features = "+strict-align,+neon,+fp-armv8".into();
base.max_atomic_width = Some(128);
base.linker = Some("aarch64-linux-gnu-ld".into());
Target {
llvm_target: "aarch64-unknown-none".into(),
pointer_width: 64,
data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(),
arch: "aarch64".into(),
options: base,
}
}

3
compiler/rustc_target/src/spec/mod.rs
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@ -83,6 +83,7 @@ mod openbsd_base;
mod redox_base;
mod solaris_base;
mod solid_base;
mod teeos_base;
mod thumb_base;
mod uefi_msvc_base;
mod unikraft_linux_musl_base;
@ -1494,6 +1495,8 @@ supported_targets! {
("x86_64-unknown-none", x86_64_unknown_none),
("aarch64-unknown-teeos", aarch64_unknown_teeos),
("mips64-openwrt-linux-musl", mips64_openwrt_linux_musl),
("aarch64-unknown-nto-qnx710", aarch64_unknown_nto_qnx_710),

29
compiler/rustc_target/src/spec/teeos_base.rs Normal file
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@ -0,0 +1,29 @@
use super::{Cc, LinkerFlavor, Lld, PanicStrategy};
use crate::spec::{RelroLevel, TargetOptions};
pub fn opts() -> TargetOptions {
let lld_args = &["-zmax-page-size=4096", "-znow", "-ztext", "--execute-only"];
let cc_args = &["-Wl,-zmax-page-size=4096", "-Wl,-znow", "-Wl,-ztext", "-mexecute-only"];
let mut pre_link_args = TargetOptions::link_args(LinkerFlavor::Gnu(Cc::No, Lld::No), lld_args);
super::add_link_args(&mut pre_link_args, LinkerFlavor::Gnu(Cc::Yes, Lld::No), cc_args);
TargetOptions {
os: "teeos".into(),
vendor: "unknown".into(),
dynamic_linking: true,
linker_flavor: LinkerFlavor::Gnu(Cc::Yes, Lld::No),
// rpath hardcodes -Wl, so it can't be used together with ld.lld.
// C TAs also don't support rpath, so this is fine.
has_rpath: false,
// Note: Setting has_thread_local to true causes an error when
// loading / dyn-linking the TA
has_thread_local: false,
position_independent_executables: true,
relro_level: RelroLevel::Full,
crt_static_respected: true,
pre_link_args,
panic_strategy: PanicStrategy::Abort,
..Default::default()
}
}