为DragonOS移植了的relibc

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pthreads-emb 9c423abb5f Update pthreads-emb пре 3 година
ralloc 6c11a18240 Go back to patched ralloc пре 6 година
src 27e779dc23 bugfix: 修正sys_rt_sigreturn的汇编,错误的压多了一个栈指针的问题 (#25) пре 11 месеци
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.gitlab-ci.yml 9a7dfc4f4d Disable test:redox for now пре 1 година
.gitmodules 089ee030a1 更换submodule远程为dragonos镜像 (#16) пре 1 година
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README.md 39989b488c 适配dragonos пре 1 година
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bindgen_transform.sh 799c8828c2 mkdir and rmdir пре 6 година
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redoxer.sh 903393574e redoxer.sh will clear build-std from CARGOFLAGS пре 1 година
renamesyms.sh 70a8fca3c1 Use target binutils for renamesyms пре 2 година
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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