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Add support for ARMv5TE architecture #37615
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| # armv5-unknown-linux-gnueabi configuration | ||
| CROSS_PREFIX_armv5te-unknown-linux-gnueabi=arm-linux-gnueabi- | ||
| CC_armv5te-unknown-linux-gnueabi=gcc | ||
| CXX_armv5te-unknown-linux-gnueabi=g++ | ||
| CPP_armv5te-unknown-linux-gnueabi=gcc -E | ||
| AR_armv5te-unknown-linux-gnueabi=ar | ||
| CFG_LIB_NAME_armv5te-unknown-linux-gnueabi=lib$(1).so | ||
| CFG_STATIC_LIB_NAME_armv5te-unknown-linux-gnueabi=lib$(1).a | ||
| CFG_LIB_GLOB_armv5te-unknown-linux-gnueabi=lib$(1)-*.so | ||
| CFG_LIB_DSYM_GLOB_armv5te-unknown-linux-gnueabi=lib$(1)-*.dylib.dSYM | ||
| CFG_JEMALLOC_CFLAGS_armv5te-unknown-linux-gnueabi := -D__arm__ -mfloat-abi=soft $(CFLAGS) -march=armv5te -marm | ||
| CFG_GCCISH_CFLAGS_armv5te-unknown-linux-gnueabi := -Wall -g -fPIC -D__arm__ -mfloat-abi=soft $(CFLAGS) -march=armv5te -marm | ||
| CFG_GCCISH_CXXFLAGS_armv5te-unknown-linux-gnueabi := -fno-rtti $(CXXFLAGS) | ||
| CFG_GCCISH_LINK_FLAGS_armv5te-unknown-linux-gnueabi := -shared -fPIC -g | ||
| CFG_GCCISH_DEF_FLAG_armv5te-unknown-linux-gnueabi := -Wl,--export-dynamic,--dynamic-list= | ||
| CFG_LLC_FLAGS_armv5te-unknown-linux-gnueabi := | ||
| CFG_INSTALL_NAME_ar,-unknown-linux-gnueabi = | ||
| CFG_EXE_SUFFIX_armv5te-unknown-linux-gnueabi := | ||
| CFG_WINDOWSY_armv5te-unknown-linux-gnueabi := | ||
| CFG_UNIXY_armv5te-unknown-linux-gnueabi := 1 | ||
| CFG_LDPATH_armv5te-unknown-linux-gnueabi := | ||
| CFG_RUN_armv5te-unknown-linux-gnueabi=$(2) | ||
| CFG_RUN_TARG_armv5te-unknown-linux-gnueabi=$(call CFG_RUN_armv5te-unknown-linux-gnueabi,,$(2)) | ||
| RUSTC_FLAGS_armv5te-unknown-linux-gnueabi := | ||
| RUSTC_CROSS_FLAGS_armv5te-unknown-linux-gnueabi := | ||
| CFG_GNU_TRIPLE_armv5te-unknown-linux-gnueabi := armv5te-unknown-linux-gnueabi |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| // Copyright 2016 The Rust Project Developers. See the COPYRIGHT | ||
| // file at the top-level directory of this distribution and at | ||
| // http://rust-lang.org/COPYRIGHT. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
| // option. This file may not be copied, modified, or distributed | ||
| // except according to those terms. | ||
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| use target::{Target, TargetOptions, TargetResult}; | ||
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| pub fn target() -> TargetResult { | ||
| let base = super::linux_base::opts(); | ||
| Ok(Target { | ||
| llvm_target: "armv5te-unknown-linux-gnueabi".to_string(), | ||
| target_endian: "little".to_string(), | ||
| target_pointer_width: "32".to_string(), | ||
| data_layout: "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64".to_string(), | ||
| arch: "arm".to_string(), | ||
| target_os: "linux".to_string(), | ||
| target_env: "gnu".to_string(), | ||
| target_vendor: "unknown".to_string(), | ||
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| options: TargetOptions { | ||
| features: "+soft-float".to_string(), | ||
| max_atomic_width: Some(64), | ||
| abi_blacklist: super::arm_base::abi_blacklist(), | ||
| .. base | ||
| } | ||
| }) | ||
| } | ||
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LLVM can't lower atomic stuff to actual ARMv5 instructions because there are no instructions in the instruction set to implement atomics. This is going to require something like rust-lang/compiler-builtins#115
cc @Amanieu
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Even with my PR the maximum atomic width would be 32 bits, not 64 bits.