From 84e1fbcadfa6299e63e517e722485b47fc99daad Mon Sep 17 00:00:00 2001 From: Florian Bartels Date: Mon, 5 Sep 2022 10:56:06 +0200 Subject: Add no_std AArch64 support for the QNX Neutrino (nto) 7.1 RTOS This change allows to compile no_std applications for the QNX Neutrino realtime operating system for ARM 64 bit CPUs. Tested with QNX Neutrino 7.1. --- .../src/spec/aarch64_unknown_nto_qnx_710.rs | 28 ++++++++++++++++++++++ compiler/rustc_target/src/spec/mod.rs | 4 ++++ compiler/rustc_target/src/spec/nto_qnx_base.rs | 19 +++++++++++++++ .../rustc_target/src/spec/x86_64_pc_nto_qnx710.rs | 21 ++++++++++++++++ 4 files changed, 72 insertions(+) create mode 100644 compiler/rustc_target/src/spec/aarch64_unknown_nto_qnx_710.rs create mode 100644 compiler/rustc_target/src/spec/nto_qnx_base.rs create mode 100644 compiler/rustc_target/src/spec/x86_64_pc_nto_qnx710.rs (limited to 'compiler/rustc_target/src') diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_nto_qnx_710.rs b/compiler/rustc_target/src/spec/aarch64_unknown_nto_qnx_710.rs new file mode 100644 index 00000000000..916b6137b65 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_unknown_nto_qnx_710.rs @@ -0,0 +1,28 @@ +use super::nto_qnx_base; +use crate::spec::{Cc, LinkerFlavor, Lld, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "aarch64-unknown-unknown".into(), + pointer_width: 64, + // from: https://llvm.org/docs/LangRef.html#data-layout + // e = little endian + // m:e = ELF mangling: Private symbols get a .L prefix + // i8:8:32 = 8-bit-integer, minimum_alignment=8, preferred_alignment=32 + // i16:16:32 = 16-bit-integer, minimum_alignment=16, preferred_alignment=32 + // i64:64 = 64-bit-integer, minimum_alignment=64, preferred_alignment=64 + // i128:128 = 128-bit-integer, minimum_alignment=128, preferred_alignment=128 + // n32:64 = 32 and 64 are native integer widths; Elements of this set are considered to support most general arithmetic operations efficiently. + // S128 = 128 bits are the natural alignment of the stack in bits. + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + max_atomic_width: Some(128), + pre_link_args: TargetOptions::link_args( + LinkerFlavor::Gnu(Cc::Yes, Lld::No), + &["-Vgcc_ntoaarch64le_cxx"], + ), + ..nto_qnx_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index 77d9a092003..e809f646860 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -74,6 +74,7 @@ mod linux_musl_base; mod linux_uclibc_base; mod msvc_base; mod netbsd_base; +mod nto_qnx_base; mod openbsd_base; mod redox_base; mod solaris_base; @@ -1242,6 +1243,9 @@ supported_targets! { ("x86_64-unknown-none", x86_64_unknown_none), ("mips64-openwrt-linux-musl", mips64_openwrt_linux_musl), + + ("aarch64-unknown-nto-qnx7.1.0", aarch64_unknown_nto_qnx_710), + ("x86_64-pc-nto-qnx7.1.0", x86_64_pc_nto_qnx710), } /// Cow-Vec-Str: Cow<'static, [Cow<'static, str>]> diff --git a/compiler/rustc_target/src/spec/nto_qnx_base.rs b/compiler/rustc_target/src/spec/nto_qnx_base.rs new file mode 100644 index 00000000000..6fb581ef5ce --- /dev/null +++ b/compiler/rustc_target/src/spec/nto_qnx_base.rs @@ -0,0 +1,19 @@ +use crate::spec::{cvs, RelroLevel, TargetOptions}; + +pub fn opts() -> TargetOptions { + TargetOptions { + crt_static_respected: true, + dynamic_linking: true, + env: "nto71".into(), + executables: true, + families: cvs!["unix"], + has_rpath: true, + has_thread_local: false, + linker: Some("qcc".into()), + os: "nto".into(), + position_independent_executables: true, + static_position_independent_executables: true, + relro_level: RelroLevel::Full, + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_pc_nto_qnx710.rs b/compiler/rustc_target/src/spec/x86_64_pc_nto_qnx710.rs new file mode 100644 index 00000000000..e9b3acee2e7 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_pc_nto_qnx710.rs @@ -0,0 +1,21 @@ +use super::nto_qnx_base; +use crate::spec::{Cc, LinkerFlavor, Lld, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "x86_64-pc-unknown".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: TargetOptions { + cpu: "x86-64".into(), + max_atomic_width: Some(64), + pre_link_args: TargetOptions::link_args( + LinkerFlavor::Gnu(Cc::Yes, Lld::No), + &["-Vgcc_ntox86_64_cxx"], + ), + ..nto_qnx_base::opts() + }, + } +} -- cgit 1.4.1-3-g733a5