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为DragonOS移植了的relibc

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relibc
GnoCiYeH 565bc93b46 Merge pull request #22 from DragonOS-Community/update-dsc 1 tahun lalu
.cargo ed19381547 target=x86_64-dragonos能通过编译 1 tahun lalu
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.gitlab-ci.yml 9a7dfc4f4d Disable test:redox for now 1 tahun lalu
.gitmodules 089ee030a1 更换submodule远程为dragonos镜像 (#16) 1 tahun lalu
CONTRIBUTING.md ff874c87d7 tests: Fix function signatures 5 tahun lalu
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LICENSE ba515d83df Create LICENSE 6 tahun lalu
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README.md 39989b488c 适配dragonos 1 tahun lalu
Xargo.toml ae34ade595 Use path to patch compiler-builtins 4 tahun lalu
bindgen_transform.sh 799c8828c2 mkdir and rmdir 6 tahun lalu
build.rs be35961d82 Patch support run first demo on dragonos (#6) 1 tahun lalu
ci.sh 9f86748a58 Fix make libs in CI 4 tahun lalu
fmt.sh bab4e2896a Format 6 tahun lalu
init_dragonos_toolchain.sh 70e3f729c5 完善初始化工具链脚本，增加对“已存在工具链配置文件“情况的判断 (#9) 1 tahun lalu
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README.md

relibc build

relibc is a portable POSIX C standard library written in Rust. It is under heavy development, and currently supports Redox, Linux and DragonOS.

The motivation for this project is twofold: Reduce issues the redox crew was having with newlib, and create a safer alternative to a C standard library written in C. It is mainly designed to be used under redox, as an alternative to newlib, but it also supports linux syscalls via the sc crate.

Building

Just run make all.

Build for DragonOS

You can follow the instructions to build relibc for DragonOS:

mkdir -p sysroot/usr
make -j $(nproc) && DESTDIR=sysroot/usr make install -j $(nproc)

Issues

I'm building for my own platform which I run, and am getting x86_64-linux-gnu-ar: command not found (or similar)

The Makefile expects the gnu compiler tools prefixed with the platform specifier, as would be present when you'd install a cross compiler. Since you are building for your own platform, some distros (like Manjaro) don't install/symlink the prefixed executables. An easy fix would be to replace the corresponding lines in the Makefile, e.g.

 ifeq ($(TARGET),x86_64-unknown-linux-gnu)
        export CC=x86_64-linux-gnu-gcc
-       export LD=x86_64-linux-gnu-ld
-       export AR=x86_64-linux-gnu-ar
+       export LD=ld
+       export AR=ar
        export OBJCOPY=x86_64-linux-gnu-objcopy
 endif

Contributing

Supported OSes

  • Redox OS
  • Linux
  • DragonOS

Supported architectures

  • x86_64
  • Aarch64