From 7d56f135a66d8d61b8513e981f43f739b488723f Mon Sep 17 00:00:00 2001 From: Josef Schlehofer Date: Tue, 9 Aug 2022 01:28:42 +0200 Subject: [PATCH] Add powerpc-unknown-linux-muslspe compile target This is almost identical to already existing targets: - powerpc_unknown_linux_musl.rs - powerpc_unknown_linux_gnuspe.rs It has support for PowerPC SPE (muslspe), which can be used with GCC version up to 8. It is useful for Freescale or IBM cores like e500. This was verified to be working with OpenWrt build system for CZ.NIC's Turris 1.x routers, which are using Freescale P2020, e500v2, so add it as a Tier 3 target. --- compiler/rustc_target/src/spec/mod.rs | 1 + .../targets/powerpc_unknown_linux_muslspe.rs | 28 ++++++++++++++++ src/doc/rustc/src/SUMMARY.md | 1 + src/doc/rustc/src/platform-support.md | 1 + .../powerpc-unknown-linux-muslspe.md | 32 +++++++++++++++++++ 5 files changed, 63 insertions(+) create mode 100644 compiler/rustc_target/src/spec/targets/powerpc_unknown_linux_muslspe.rs create mode 100644 src/doc/rustc/src/platform-support/powerpc-unknown-linux-muslspe.md diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index 607eeac7ccdc3..e5ffc94d083ce 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -1558,6 +1558,7 @@ supported_targets! { ("powerpc-unknown-linux-gnu", powerpc_unknown_linux_gnu), ("powerpc-unknown-linux-gnuspe", powerpc_unknown_linux_gnuspe), ("powerpc-unknown-linux-musl", powerpc_unknown_linux_musl), + ("powerpc-unknown-linux-muslspe", powerpc_unknown_linux_muslspe), ("powerpc64-ibm-aix", powerpc64_ibm_aix), ("powerpc64-unknown-linux-gnu", powerpc64_unknown_linux_gnu), ("powerpc64-unknown-linux-musl", powerpc64_unknown_linux_musl), diff --git a/compiler/rustc_target/src/spec/targets/powerpc_unknown_linux_muslspe.rs b/compiler/rustc_target/src/spec/targets/powerpc_unknown_linux_muslspe.rs new file mode 100644 index 0000000000000..185806300349f --- /dev/null +++ b/compiler/rustc_target/src/spec/targets/powerpc_unknown_linux_muslspe.rs @@ -0,0 +1,28 @@ +use crate::abi::Endian; +use crate::spec::{base, Cc, LinkerFlavor, Lld, StackProbeType, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = base::linux_gnu::opts(); + base.add_pre_link_args(LinkerFlavor::Gnu(Cc::Yes, Lld::No), &["-mspe"]); + base.max_atomic_width = Some(32); + base.stack_probes = StackProbeType::Inline; + + Target { + llvm_target: "powerpc-unknown-linux-muslspe".into(), + metadata: crate::spec::TargetMetadata { + description: Some("PowerPC SPE Linux with musl".into()), + tier: Some(3), + host_tools: Some(false), + std: Some(true), + }, + pointer_width: 32, + data_layout: "E-m:e-p:32:32-Fn32-i64:64-n32".into(), + arch: "powerpc".into(), + options: TargetOptions { + abi: "spe".into(), + endian: Endian::Big, + mcount: "_mcount".into(), + ..base + }, + } +} diff --git a/src/doc/rustc/src/SUMMARY.md b/src/doc/rustc/src/SUMMARY.md index 1a8ff931f0177..e5883cb971491 100644 --- a/src/doc/rustc/src/SUMMARY.md +++ b/src/doc/rustc/src/SUMMARY.md @@ -61,6 +61,7 @@ - [mipsisa\*r6\*-unknown-linux-gnu\*](platform-support/mips-release-6.md) - [nvptx64-nvidia-cuda](platform-support/nvptx64-nvidia-cuda.md) - [powerpc-unknown-openbsd](platform-support/powerpc-unknown-openbsd.md) + - [powerpc-unknown-linux-muslspe](platform-support/powerpc-unknown-linux-muslspe.md) - [powerpc64-ibm-aix](platform-support/aix.md) - [riscv32im-risc0-zkvm-elf](platform-support/riscv32im-risc0-zkvm-elf.md) - [riscv32imac-unknown-xous-elf](platform-support/riscv32imac-unknown-xous-elf.md) diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md index 370dbed50fa1a..57187bbe902a4 100644 --- a/src/doc/rustc/src/platform-support.md +++ b/src/doc/rustc/src/platform-support.md @@ -331,6 +331,7 @@ target | std | host | notes `msp430-none-elf` | * | | 16-bit MSP430 microcontrollers `powerpc-unknown-linux-gnuspe` | ✓ | | PowerPC SPE Linux `powerpc-unknown-linux-musl` | ? | | PowerPC Linux with musl 1.2.3 +[`powerpc-unknown-linux-muslspe`](platform-support/powerpc-unknown-linux-muslspe.md) | ? | | PowerPC SPE Linux [`powerpc-unknown-netbsd`](platform-support/netbsd.md) | ✓ | ✓ | NetBSD 32-bit powerpc systems [`powerpc-unknown-openbsd`](platform-support/powerpc-unknown-openbsd.md) | * | | `powerpc-wrs-vxworks-spe` | ? | | diff --git a/src/doc/rustc/src/platform-support/powerpc-unknown-linux-muslspe.md b/src/doc/rustc/src/platform-support/powerpc-unknown-linux-muslspe.md new file mode 100644 index 0000000000000..4c416b5192994 --- /dev/null +++ b/src/doc/rustc/src/platform-support/powerpc-unknown-linux-muslspe.md @@ -0,0 +1,32 @@ +# powerpc-unknown-linux-muslspe + +**Tier: 3** + +This target is very similar to already existing ones like `powerpc_unknown_linux_musl` and `powerpc_unknown_linux_gnuspe`. +This one has PowerPC SPE support for musl. Unfortunately, the last supported gcc version with PowerPC SPE is 8.4.0. + +## Target maintainers + +- [@BKPepe](https://github.com/BKPepe) + +## Requirements + +This target is cross-compiled. There is no support for `std`. There is no +default allocator, but it's possible to use `alloc` by supplying an allocator. + +This target generated binaries in the ELF format. + +## Building the target + +This target was tested and used within the `OpenWrt` build system for CZ.NIC Turris 1.x routers using Freescale P2020. + +## 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 + +This is a cross-compiled target and there is no support to run rustc test suite.