diff --git a/Cargo.lock b/Cargo.lock index 635146492b042..853acd1abd6dd 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -469,9 +469,9 @@ version = "0.1.0" [[package]] name = "cc" -version = "1.0.79" +version = "1.0.90" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "50d30906286121d95be3d479533b458f87493b30a4b5f79a607db8f5d11aa91f" +checksum = "8cd6604a82acf3039f1144f54b8eb34e91ffba622051189e71b781822d5ee1f5" [[package]] name = "cfg-if" diff --git a/compiler/rustc_codegen_llvm/src/back/archive.rs b/compiler/rustc_codegen_llvm/src/back/archive.rs index ca43ac4b0e71a..0619000364b84 100644 --- a/compiler/rustc_codegen_llvm/src/back/archive.rs +++ b/compiler/rustc_codegen_llvm/src/back/archive.rs @@ -55,6 +55,7 @@ fn llvm_machine_type(cpu: &str) -> LLVMMachineType { "x86_64" => LLVMMachineType::AMD64, "x86" => LLVMMachineType::I386, "aarch64" => LLVMMachineType::ARM64, + "arm64ec" => LLVMMachineType::ARM64EC, "arm" => LLVMMachineType::ARM, _ => panic!("unsupported cpu type {cpu}"), } diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs index 952f41fbd90e5..3a34ef0874ec9 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs @@ -56,6 +56,7 @@ pub enum LLVMMachineType { AMD64 = 0x8664, I386 = 0x14c, ARM64 = 0xaa64, + ARM64EC = 0xa641, ARM = 0x01c0, } diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs index 75a189aa87c01..78d47f36f918b 100644 --- a/compiler/rustc_codegen_llvm/src/llvm_util.rs +++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs @@ -201,7 +201,13 @@ impl<'a> IntoIterator for LLVMFeature<'a> { // which might lead to failures if the oldest tested / supported LLVM version // doesn't yet support the relevant intrinsics pub fn to_llvm_features<'a>(sess: &Session, s: &'a str) -> LLVMFeature<'a> { - let arch = if sess.target.arch == "x86_64" { "x86" } else { &*sess.target.arch }; + let arch = if sess.target.arch == "x86_64" { + "x86" + } else if sess.target.arch == "arm64ec" { + "aarch64" + } else { + &*sess.target.arch + }; match (arch, s) { ("x86", "sse4.2") => { LLVMFeature::with_dependency("sse4.2", TargetFeatureFoldStrength::EnableOnly("crc32")) diff --git a/compiler/rustc_codegen_llvm/src/va_arg.rs b/compiler/rustc_codegen_llvm/src/va_arg.rs index b406a04af7474..220bb77d3fda3 100644 --- a/compiler/rustc_codegen_llvm/src/va_arg.rs +++ b/compiler/rustc_codegen_llvm/src/va_arg.rs @@ -288,7 +288,7 @@ pub(super) fn emit_va_arg<'ll, 'tcx>( // Generic x86 "x86" => emit_ptr_va_arg(bx, addr, target_ty, false, Align::from_bytes(4).unwrap(), true), // Windows AArch64 - "aarch64" if target.is_like_windows => { + "aarch64" | "arm64ec" if target.is_like_windows => { emit_ptr_va_arg(bx, addr, target_ty, false, Align::from_bytes(8).unwrap(), false) } // macOS / iOS AArch64 diff --git a/compiler/rustc_codegen_ssa/Cargo.toml b/compiler/rustc_codegen_ssa/Cargo.toml index 9359df5de6a77..81ca42e1ad802 100644 --- a/compiler/rustc_codegen_ssa/Cargo.toml +++ b/compiler/rustc_codegen_ssa/Cargo.toml @@ -7,7 +7,7 @@ edition = "2021" # tidy-alphabetical-start ar_archive_writer = "0.1.5" bitflags = "2.4.1" -cc = "1.0.69" +cc = "1.0.90" itertools = "0.11" jobserver = "0.1.28" pathdiff = "0.2.0" diff --git a/compiler/rustc_codegen_ssa/src/back/metadata.rs b/compiler/rustc_codegen_ssa/src/back/metadata.rs index 158b8fb8727c0..acdf3475f4e67 100644 --- a/compiler/rustc_codegen_ssa/src/back/metadata.rs +++ b/compiler/rustc_codegen_ssa/src/back/metadata.rs @@ -8,7 +8,7 @@ use std::path::Path; use object::write::{self, StandardSegment, Symbol, SymbolSection}; use object::{ elf, pe, xcoff, Architecture, BinaryFormat, Endianness, FileFlags, Object, ObjectSection, - ObjectSymbol, SectionFlags, SectionKind, SymbolFlags, SymbolKind, SymbolScope, + ObjectSymbol, SectionFlags, SectionKind, SubArchitecture, SymbolFlags, SymbolKind, SymbolScope, }; use rustc_data_structures::memmap::Mmap; @@ -182,37 +182,40 @@ pub(crate) fn create_object_file(sess: &Session) -> Option Endianness::Little, Endian::Big => Endianness::Big, }; - let architecture = match &sess.target.arch[..] { - "arm" => Architecture::Arm, - "aarch64" => { + let (architecture, sub_architecture) = match &sess.target.arch[..] { + "arm" => (Architecture::Arm, None), + "aarch64" => ( if sess.target.pointer_width == 32 { Architecture::Aarch64_Ilp32 } else { Architecture::Aarch64 - } - } - "x86" => Architecture::I386, - "s390x" => Architecture::S390x, - "mips" | "mips32r6" => Architecture::Mips, - "mips64" | "mips64r6" => Architecture::Mips64, - "x86_64" => { + }, + None, + ), + "x86" => (Architecture::I386, None), + "s390x" => (Architecture::S390x, None), + "mips" | "mips32r6" => (Architecture::Mips, None), + "mips64" | "mips64r6" => (Architecture::Mips64, None), + "x86_64" => ( if sess.target.pointer_width == 32 { Architecture::X86_64_X32 } else { Architecture::X86_64 - } - } - "powerpc" => Architecture::PowerPc, - "powerpc64" => Architecture::PowerPc64, - "riscv32" => Architecture::Riscv32, - "riscv64" => Architecture::Riscv64, - "sparc64" => Architecture::Sparc64, - "avr" => Architecture::Avr, - "msp430" => Architecture::Msp430, - "hexagon" => Architecture::Hexagon, - "bpf" => Architecture::Bpf, - "loongarch64" => Architecture::LoongArch64, - "csky" => Architecture::Csky, + }, + None, + ), + "powerpc" => (Architecture::PowerPc, None), + "powerpc64" => (Architecture::PowerPc64, None), + "riscv32" => (Architecture::Riscv32, None), + "riscv64" => (Architecture::Riscv64, None), + "sparc64" => (Architecture::Sparc64, None), + "avr" => (Architecture::Avr, None), + "msp430" => (Architecture::Msp430, None), + "hexagon" => (Architecture::Hexagon, None), + "bpf" => (Architecture::Bpf, None), + "loongarch64" => (Architecture::LoongArch64, None), + "csky" => (Architecture::Csky, None), + "arm64ec" => (Architecture::Aarch64, Some(SubArchitecture::Arm64EC)), // Unsupported architecture. _ => return None, }; @@ -227,6 +230,7 @@ pub(crate) fn create_object_file(sess: &Session) -> Option( return undecorated; } - let x86 = match &target.arch[..] { - "x86" => true, - "x86_64" => false, + let prefix = match &target.arch[..] { + "x86" => Some('_'), + "x86_64" => None, + "arm64ec" => Some('#'), // Only x86/64 use symbol decorations. _ => return undecorated, }; @@ -606,8 +607,8 @@ pub fn linking_symbol_name_for_instance_in_crate<'tcx>( Conv::X86Stdcall => ("_", "@"), Conv::X86VectorCall => ("", "@@"), _ => { - if x86 { - undecorated.insert(0, '_'); + if let Some(prefix) = prefix { + undecorated.insert(0, prefix); } return undecorated; } diff --git a/compiler/rustc_codegen_ssa/src/base.rs b/compiler/rustc_codegen_ssa/src/base.rs index f7afd22a48cab..2161bf61daa41 100644 --- a/compiler/rustc_codegen_ssa/src/base.rs +++ b/compiler/rustc_codegen_ssa/src/base.rs @@ -907,7 +907,11 @@ impl CrateInfo { lang_items::required(tcx, l).then_some(name) }) .collect(); - let prefix = if target.is_like_windows && target.arch == "x86" { "_" } else { "" }; + let prefix = match (target.is_like_windows, target.arch.as_ref()) { + (true, "x86") => "_", + (true, "arm64ec") => "#", + _ => "", + }; // This loop only adds new items to values of the hash map, so the order in which we // iterate over the values is not important. diff --git a/compiler/rustc_llvm/Cargo.toml b/compiler/rustc_llvm/Cargo.toml index 6598f1db86dac..c206380a06ff3 100644 --- a/compiler/rustc_llvm/Cargo.toml +++ b/compiler/rustc_llvm/Cargo.toml @@ -8,12 +8,7 @@ edition = "2021" libc = "0.2.73" # tidy-alphabetical-end -# FIXME: updating cc past 1.0.79 breaks libstd bootstrapping, pin -# to the last working version here so `cargo update` doesn't cause the -# a higher version to be selected -# https://github.com/rust-lang/cc-rs/issues/913 -# 1.0.{84, 85} fix this but have been yanked [build-dependencies] # tidy-alphabetical-start -cc = "=1.0.79" +cc = "1.0.90" # tidy-alphabetical-end diff --git a/compiler/rustc_target/src/abi/call/mod.rs b/compiler/rustc_target/src/abi/call/mod.rs index 66177d551ba2d..f4967b94e930a 100644 --- a/compiler/rustc_target/src/abi/call/mod.rs +++ b/compiler/rustc_target/src/abi/call/mod.rs @@ -814,7 +814,7 @@ impl<'a, Ty> FnAbi<'a, Ty> { } } }, - "aarch64" => { + "aarch64" | "arm64ec" => { let kind = if cx.target_spec().is_like_osx { aarch64::AbiKind::DarwinPCS } else if cx.target_spec().is_like_windows { diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index 3fda1e1833c12..a68dae0ade390 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -1564,6 +1564,7 @@ supported_targets! { ("aarch64-pc-windows-msvc", aarch64_pc_windows_msvc), ("aarch64-uwp-windows-msvc", aarch64_uwp_windows_msvc), + ("arm64ec-pc-windows-msvc", arm64ec_pc_windows_msvc), ("x86_64-pc-windows-msvc", x86_64_pc_windows_msvc), ("x86_64-uwp-windows-msvc", x86_64_uwp_windows_msvc), ("x86_64-win7-windows-msvc", x86_64_win7_windows_msvc), diff --git a/compiler/rustc_target/src/spec/targets/arm64ec_pc_windows_msvc.rs b/compiler/rustc_target/src/spec/targets/arm64ec_pc_windows_msvc.rs new file mode 100644 index 0000000000000..f1af4d9a80ec6 --- /dev/null +++ b/compiler/rustc_target/src/spec/targets/arm64ec_pc_windows_msvc.rs @@ -0,0 +1,21 @@ +use crate::spec::{add_link_args, base, LinkerFlavor, Lld, Target}; + +pub fn target() -> Target { + let mut base = base::windows_msvc::opts(); + base.max_atomic_width = Some(128); + base.features = "+v8a,+neon,+fp-armv8".into(); + add_link_args( + &mut base.late_link_args, + LinkerFlavor::Msvc(Lld::No), + &["/machine:arm64ec", "softintrin.lib"], + ); + + Target { + llvm_target: "arm64ec-pc-windows-msvc".into(), + description: None, + pointer_width: 64, + data_layout: "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128".into(), + arch: "arm64ec".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/target_features.rs b/compiler/rustc_target/src/target_features.rs index 2b7ac68c21dfb..af5a565fdc9d3 100644 --- a/compiler/rustc_target/src/target_features.rs +++ b/compiler/rustc_target/src/target_features.rs @@ -409,7 +409,7 @@ impl super::spec::Target { pub fn supported_target_features(&self) -> &'static [(&'static str, Stability)] { match &*self.arch { "arm" => ARM_ALLOWED_FEATURES, - "aarch64" => AARCH64_ALLOWED_FEATURES, + "aarch64" | "arm64ec" => AARCH64_ALLOWED_FEATURES, "x86" | "x86_64" => X86_ALLOWED_FEATURES, "hexagon" => HEXAGON_ALLOWED_FEATURES, "mips" | "mips32r6" | "mips64" | "mips64r6" => MIPS_ALLOWED_FEATURES, @@ -425,7 +425,7 @@ impl super::spec::Target { pub fn tied_target_features(&self) -> &'static [&'static [&'static str]] { match &*self.arch { - "aarch64" => AARCH64_TIED_FEATURES, + "aarch64" | "arm64ec" => AARCH64_TIED_FEATURES, _ => &[], } } diff --git a/src/bootstrap/src/lib.rs b/src/bootstrap/src/lib.rs index f7748621d93ba..ab8f3c0d9e497 100644 --- a/src/bootstrap/src/lib.rs +++ b/src/bootstrap/src/lib.rs @@ -91,7 +91,7 @@ const EXTRA_CHECK_CFGS: &[(Option, &str, Option<&[&'static str]>)] = &[ /* Extra values not defined in the built-in targets yet, but used in std */ (Some(Mode::Std), "target_env", Some(&["libnx", "p2"])), // (Some(Mode::Std), "target_os", Some(&[])), - (Some(Mode::Std), "target_arch", Some(&["spirv", "nvptx", "xtensa"])), + (Some(Mode::Std), "target_arch", Some(&["arm64ec", "spirv", "nvptx", "xtensa"])), /* Extra names used by dependencies */ // FIXME: Used by serde_json, but we should not be triggering on external dependencies. (Some(Mode::Rustc), "no_btreemap_remove_entry", None), diff --git a/src/doc/rustc/src/SUMMARY.md b/src/doc/rustc/src/SUMMARY.md index 26e43491c40f5..5a0168e30cbb1 100644 --- a/src/doc/rustc/src/SUMMARY.md +++ b/src/doc/rustc/src/SUMMARY.md @@ -18,6 +18,7 @@ - [arm64e-apple-ios.md](platform-support/arm64e-apple-ios.md) - [arm64e-apple-darwin.md](platform-support/arm64e-apple-darwin.md) - [aarch64-apple-ios-sim](platform-support/aarch64-apple-ios-sim.md) + - [arm64ec-pc-windows-msvc](platform-support/arm64ec-pc-windows-msvc.md) - [\*-apple-tvos](platform-support/apple-tvos.md) - [\*-apple-watchos\*](platform-support/apple-watchos.md) - [aarch64-nintendo-switch-freestanding](platform-support/aarch64-nintendo-switch-freestanding.md) diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md index 4c4bbd29ac66f..2ce760f6e863e 100644 --- a/src/doc/rustc/src/platform-support.md +++ b/src/doc/rustc/src/platform-support.md @@ -241,6 +241,7 @@ target | std | host | notes -------|:---:|:----:|------- [`arm64e-apple-ios`](platform-support/arm64e-apple-ios.md) | ✓ | | ARM64e Apple iOS [`arm64e-apple-darwin`](platform-support/arm64e-apple-darwin.md) | ✓ | ✓ | ARM64e Apple Darwin +[`arm64ec-pc-windows-msvc`](platform-support/arm64ec-pc-windows-msvc.md) | ? | | Arm64EC Windows MSVC `aarch64-apple-ios-macabi` | ? | | Apple Catalyst on ARM64 [`aarch64-apple-tvos`](platform-support/apple-tvos.md) | ? | | ARM64 tvOS [`aarch64-apple-tvos-sim`](platform-support/apple-tvos.md) | ? | | ARM64 tvOS Simulator diff --git a/src/doc/rustc/src/platform-support/arm64ec-pc-windows-msvc.md b/src/doc/rustc/src/platform-support/arm64ec-pc-windows-msvc.md new file mode 100644 index 0000000000000..1bb2c677b0809 --- /dev/null +++ b/src/doc/rustc/src/platform-support/arm64ec-pc-windows-msvc.md @@ -0,0 +1,69 @@ +# `arm64ec-pc-windows-msvc` + +**Tier: 3** + +Arm64EC ("Emulation Compatible") for mixed architecture (AArch64 and x86_64) +applications on AArch64 Windows 11. See . + +## Target maintainers + +- [@dpaoliello](https://github.com/dpaoliello) + +## Requirements + +Target only supports cross-compilation, `core` and `alloc` are supported but +`std` is not. + +Builds Arm64EC static and dynamic libraries and executables which can be run on +AArch64 Windows 11 devices. Arm64EC static libraries can also be linked into +Arm64X dynamic libraries and executables. + +Uses `arm64ec` as its `target_arch` - code built for Arm64EC must be compatible +with x86_64 code (e.g., same structure layouts, function signatures, etc.) but +use AArch64 intrinsics. + +Only supported backend is LLVM 18 (or above). + +## Building the target + +You can build Rust with support for the targets by adding it to the `target` +list in `config.toml` and disabling `std`: + +```toml +[build] +target = [ "arm64ec-pc-windows-msvc" ] + +[target.arm64ec-pc-windows-msvc] +no-std = true +``` + +## Building Rust programs + +Rust does not yet ship pre-compiled artifacts for this target. To compile for +this target, you will either need to build Rust with the target enabled (see +"Building the target" above), or build your own copy of `core` by using +`build-std` or similar. + +## Testing + +Tests can be run on AArch64 Windows 11 devices. + +Since this is a `no_std` target, the Rust test suite is not supported. + +## Cross-compilation toolchains and C code + +C code can be built using the Arm64-targetting MSVC toolchain. + +To compile: + +```bash +cl /arm64EC /c ... +``` + +To link: + +```bash +link /MACHINE:ARM64EC ... +``` + +Further reading: diff --git a/tests/assembly/targets/targets-pe.rs b/tests/assembly/targets/targets-pe.rs index 63b07ee4d1a9d..6415aee6fae90 100644 --- a/tests/assembly/targets/targets-pe.rs +++ b/tests/assembly/targets/targets-pe.rs @@ -12,6 +12,9 @@ //@ revisions: aarch64_uwp_windows_msvc //@ [aarch64_uwp_windows_msvc] compile-flags: --target aarch64-uwp-windows-msvc //@ [aarch64_uwp_windows_msvc] needs-llvm-components: aarch64 +//@ revisions: arm64ec_pc_windows_msvc +//@ [arm64ec_pc_windows_msvc] compile-flags: --target arm64ec-pc-windows-msvc +//@ [arm64ec_pc_windows_msvc] needs-llvm-components: aarch64 //@ revisions: avr_unknown_gnu_atmega328 //@ [avr_unknown_gnu_atmega328] compile-flags: --target avr-unknown-gnu-atmega328 //@ [avr_unknown_gnu_atmega328] needs-llvm-components: avr diff --git a/tests/ui/check-cfg/well-known-values.stderr b/tests/ui/check-cfg/well-known-values.stderr index 86df829fe726c..e7df97366192c 100644 --- a/tests/ui/check-cfg/well-known-values.stderr +++ b/tests/ui/check-cfg/well-known-values.stderr @@ -118,7 +118,7 @@ warning: unexpected `cfg` condition value: `_UNEXPECTED_VALUE` LL | target_arch = "_UNEXPECTED_VALUE", | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = note: expected values for `target_arch` are: `aarch64`, `arm`, `avr`, `bpf`, `csky`, `hexagon`, `loongarch64`, `m68k`, `mips`, `mips32r6`, `mips64`, `mips64r6`, `msp430`, `nvptx64`, `powerpc`, `powerpc64`, `riscv32`, `riscv64`, `s390x`, `sparc`, `sparc64`, `wasm32`, `wasm64`, `x86`, `x86_64` + = note: expected values for `target_arch` are: `aarch64`, `arm`, `arm64ec`, `avr`, `bpf`, `csky`, `hexagon`, `loongarch64`, `m68k`, `mips`, `mips32r6`, `mips64`, `mips64r6`, `msp430`, `nvptx64`, `powerpc`, `powerpc64`, `riscv32`, `riscv64`, `s390x`, `sparc`, `sparc64`, `wasm32`, `wasm64`, `x86`, `x86_64` = note: see for more information about checking conditional configuration warning: unexpected `cfg` condition value: `_UNEXPECTED_VALUE`