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# RIOT rust support makefile | ||
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# make RIOT's linker hook path known to rustc | ||
export RUST_TARGET_PATH ?= $(RIOTBASE)/dist/rust/targets | ||
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# (unfortunately with this set, Cargo somehow fails. Thus we need to keep | ||
# Cargo's build directory in ./target) | ||
#export CARGO_TARGET_DIR ?= $(BINDIR)/_cargo | ||
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# the rust riot crate depends on fmt | ||
USEMODULE += fmt | ||
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ifneq (,$(filter $(CPU_ARCH), cortex-m0plus cortex-m4f)) | ||
RUST_TARGET=$(CPU_ARCH) | ||
else ifeq ($(CPU_ARCH),native) | ||
$(error Makefile.rust: RIOT rust on native is currently broken.) | ||
RUST_TARGET=i586-unknown-linux-gnu | ||
endif | ||
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ifeq (, $(RUST_TARGET)) | ||
$(error Makefile.rust: cannot determine rust target triple!) | ||
endif | ||
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all: xargo | ||
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xargo: | ||
@mkdir -p $(BINDIR)/_extra_libs | ||
@PATH=$${PATH}:$(RIOTBASE)/dist/rust xargo build -v --target $(RUST_TARGET) |
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#!/bin/sh | ||
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[ -z "$BINDIR" ] && { | ||
echo "$0: BINDIR not defined!" 1&>2 | ||
exit 1 | ||
} | ||
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_EXTRA_LIBS=${BINDIR}/_extra_libs | ||
mkdir -p ${_EXTRA_LIBS} | ||
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while true; do | ||
[ -z "$1" ] && exit 0 | ||
[ -f "$1" ] && { | ||
if [[ "$1" == *.o ]]; then | ||
${AR} r ${_EXTRA_LIBS}/_objects.a $1 | ||
elif [[ "$1" == *.rlib ]]; then | ||
cp $1 ${_EXTRA_LIBS}/$(basename $1).a | ||
fi | ||
} | ||
shift | ||
done |
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{ | ||
"arch": "arm", | ||
"cpu": "cortex-m0", | ||
"data-layout": "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64", | ||
"executables": true, | ||
"linker": "riot-rust-linker-hook", | ||
"llvm-target": "thumbv6m-none-eabi", | ||
"no-compiler-rt": true, | ||
"os": "none", | ||
"pre-link-args": [], | ||
"relocation-model": "static", | ||
"target-endian": "little", | ||
"target-pointer-width": "32" | ||
} |
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{ | ||
"arch": "arm", | ||
"cpu": "cortex-m0plus", | ||
"data-layout": "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64", | ||
"executables": true, | ||
"linker": "riot-rust-linker-hook", | ||
"llvm-target": "thumbv6m-none-eabi", | ||
"no-compiler-rt": true, | ||
"os": "none", | ||
"pre-link-args": [ ], | ||
"relocation-model": "static", | ||
"target-endian": "little", | ||
"target-pointer-width": "32" | ||
} |
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{ | ||
"arch": "arm", | ||
"cpu": "cortex-m1", | ||
"data-layout": "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64", | ||
"executables": true, | ||
"linker": "riot-rust-linker-hook", | ||
"llvm-target": "thumbv6m-none-eabi", | ||
"no-compiler-rt": true, | ||
"os": "none", | ||
"pre-link-args": [], | ||
"relocation-model": "static", | ||
"target-endian": "little", | ||
"target-pointer-width": "32" | ||
} |
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{ | ||
"arch": "arm", | ||
"cpu": "cortex-m3", | ||
"data-layout": "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64", | ||
"executables": true, | ||
"linker": "riot-rust-linker-hook", | ||
"llvm-target": "thumbv7m-none-eabi", | ||
"no-compiler-rt": true, | ||
"os": "none", | ||
"pre-link-args": [], | ||
"relocation-model": "static", | ||
"target-endian": "little", | ||
"target-pointer-width": "32" | ||
} |
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{ | ||
"arch": "arm", | ||
"cpu": "cortex-m4", | ||
"data-layout": "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64", | ||
"executables": true, | ||
"features": "+soft-float", | ||
"linker": "riot-rust-linker-hook", | ||
"llvm-target": "thumbv7em-none-eabi", | ||
"no-compiler-rt": true, | ||
"os": "none", | ||
"pre-link-args": [], | ||
"relocation-model": "static", | ||
"target-endian": "little", | ||
"target-pointer-width": "32" | ||
} |
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{ | ||
"arch": "arm", | ||
"cpu": "cortex-m4", | ||
"data-layout": "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64", | ||
"executables": true, | ||
"linker": "riot-rust-linker-hook", | ||
"llvm-target": "thumbv7em-none-eabi", | ||
"no-compiler-rt": true, | ||
"os": "none", | ||
"pre-link-args": [], | ||
"relocation-model": "static", | ||
"target-endian": "little", | ||
"target-pointer-width": "32" | ||
} |
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{ | ||
"arch": "arm", | ||
"cpu": "cortex-m7", | ||
"data-layout": "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64", | ||
"executables": true, | ||
"features": "+soft-float", | ||
"linker": "riot-rust-linker-hook", | ||
"llvm-target": "thumbv7em-none-eabi", | ||
"no-compiler-rt": true, | ||
"os": "none", | ||
"pre-link-args": [], | ||
"relocation-model": "static", | ||
"target-endian": "little", | ||
"target-pointer-width": "32" | ||
} |
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{ | ||
"arch": "arm", | ||
"cpu": "cortex-m7", | ||
"data-layout": "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64", | ||
"executables": true, | ||
"features": "+fp-only-sp", | ||
"linker": "riot-rust-linker-hook", | ||
"llvm-target": "thumbv7em-none-eabi", | ||
"no-compiler-rt": true, | ||
"os": "none", | ||
"pre-link-args": [], | ||
"relocation-model": "static", | ||
"target-endian": "little", | ||
"target-pointer-width": "32" | ||
} |
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{ | ||
"arch": "arm", | ||
"cpu": "cortex-m7", | ||
"data-layout": "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64", | ||
"executables": true, | ||
"linker": "riot-rust-linker-hook", | ||
"llvm-target": "thumbv7em-none-eabi", | ||
"no-compiler-rt": true, | ||
"os": "none", | ||
"pre-link-args": [], | ||
"relocation-model": "static", | ||
"target-endian": "little", | ||
"target-pointer-width": "32" | ||
} |
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[package] | ||
name = "app" | ||
version = "0.1.0" | ||
authors = ["Kaspar Schleiser <[email protected]>"] | ||
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[dependencies] | ||
riot = "0.1.0" |
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# name of your application | ||
APPLICATION = rust | ||
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# This has to be the absolute path to the RIOT base directory: | ||
RIOTBASE ?= $(CURDIR)/../.. | ||
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# Change this to 0 show compiler invocation lines by default: | ||
QUIET ?= 1 | ||
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# | ||
FEATURES_REQUIRED += rust_support | ||
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# If no BOARD is found in the environment, use this default: | ||
BOARD ?= samr21-xpro | ||
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# use this to enable rust support. | ||
# the current directory will be built using xargo. | ||
CARGO_BUILD=1 | ||
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include $(RIOTBASE)/Makefile.include |
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# Introduction | ||
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"Rust is a systems programming language that runs blazingly fast, prevents segfaults, and guarantees thread safety." | ||
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This example shows how to write a RIOT application using Rust. | ||
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# Status | ||
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As Rust's libstd is too fat for our little MCUs, it is currently only possible | ||
to write Rust applications using ```#![no_std]```. | ||
There's a crate on crate.io trying to map RIOT's API to rust, but that is in | ||
very early stages. | ||
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# Prerequisites | ||
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You'll need a Rust nightly toolchain and xargo. | ||
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This should get you started: | ||
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# curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain=nightly | ||
# . ~/.cargo/env | ||
# cargo install xargo | ||
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# Trying the example | ||
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As always, | ||
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# BOARD=samr21-xpro make clean all flash term | ||
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is all you need. | ||
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# Internals | ||
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RIOT's make system intercepts cargo's linking step and just copies the objects | ||
and archives cargo tries to link into RIOT's build dir, then just links | ||
everything together. | ||
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# Known issues | ||
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- currently this works only for Cortex-M platforms |
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#![feature(lang_items)] | ||
#![no_main] | ||
#![no_std] | ||
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mod lang_items { | ||
#[lang = "panic_fmt"] | ||
extern fn panic_fmt() {} | ||
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#[lang = "eh_personality"] | ||
fn eh_personality() {} | ||
} | ||
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// user code starts here | ||
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extern crate riot; | ||
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#[no_mangle] | ||
pub fn main() { | ||
riot::fmt::print("Hello from RUST!\n"); | ||
} |