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| author | Matthias Krüger <matthias.krueger@famsik.de> | 2022-02-06 04:13:30 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-02-06 04:13:30 +0100 |
| commit | 4a3be6e6e296e3f58e8dfb493469d1cefdff3892 (patch) | |
| tree | a7d0db2922b47334ed21c0b797b015bf2514ba3b /compiler/rustc_target/src/spec | |
| parent | 0eda3fa7610fb5de64db8ef1ddb641b2e6d0366d (diff) | |
| parent | 8c6f7fd5e1b6face1550249375743960cbde96f3 (diff) | |
| download | rust-4a3be6e6e296e3f58e8dfb493469d1cefdff3892.tar.gz rust-4a3be6e6e296e3f58e8dfb493469d1cefdff3892.zip | |
Rollup merge of #92383 - lancethepants:armv7-unknown-linux-uclibceabi, r=nagisa
Add new target armv7-unknown-linux-uclibceabi (softfloat) This adds the new target `armv7-unknown-linux-uclibceabi (softfloat)`. It is of course similar to `armv7-unknown-linux-uclibceabihf (hardfloat)` which was just recently added to rust except that it is `softfloat`. My interest lies in the Broadcom BCM4707/4708/BCM4709 family, notably found in some Netgear and Asus consumer routers. The armv7 Cortex-A9 cpus found in these devices do not have an fpu or NEON support. With this patch I've been able to bootstrap rustc, std and host tools `(extended = true)` to run on the target device for native compilation, allowing the target to be used as a development platform. With the recent addition of `armv7-unknown-linux-uclibceabihf (hardfloat)` it looks like many of the edge cases of using the uclibc c-library are getting worked out nicely. I've been able to compile some complex projects. Some patching still needed in some crates, but getting there for sure. I think `armv7-unknown-linux-uclibceabi` is ready to be a tier 3 target. I use a cross-toolchain from my project to bootstrap rust. https://github.com/lancethepants/tomatoware The goal of this project is to create a native development environment with support for various languages.
Diffstat (limited to 'compiler/rustc_target/src/spec')
| -rw-r--r-- | compiler/rustc_target/src/spec/armv7_unknown_linux_uclibceabi.rs | 23 | ||||
| -rw-r--r-- | compiler/rustc_target/src/spec/mod.rs | 1 |
2 files changed, 24 insertions, 0 deletions
diff --git a/compiler/rustc_target/src/spec/armv7_unknown_linux_uclibceabi.rs b/compiler/rustc_target/src/spec/armv7_unknown_linux_uclibceabi.rs new file mode 100644 index 00000000000..7faa8ed7a80 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7_unknown_linux_uclibceabi.rs @@ -0,0 +1,23 @@ +use crate::spec::{Target, TargetOptions}; + +// This target is for uclibc Linux on ARMv7 without NEON, +// thumb-mode or hardfloat. + +pub fn target() -> Target { + let base = super::linux_uclibc_base::opts(); + Target { + llvm_target: "armv7-unknown-linux-gnueabi".to_string(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".to_string(), + arch: "arm".to_string(), + + options: TargetOptions { + features: "+v7,+thumb2,+soft-float,-neon".to_string(), + cpu: "generic".to_string(), + max_atomic_width: Some(64), + mcount: "_mcount".to_string(), + abi: "eabi".to_string(), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index f17c0ec248d..92ee3fd294b 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -1013,6 +1013,7 @@ supported_targets! { ("armv6k-nintendo-3ds", armv6k_nintendo_3ds), + ("armv7-unknown-linux-uclibceabi", armv7_unknown_linux_uclibceabi), ("armv7-unknown-linux-uclibceabihf", armv7_unknown_linux_uclibceabihf), ("x86_64-unknown-none", x86_64_unknown_none), |