bootstrap-zig

The purpose of this project is to start with minimum system dependencies and end with a fully operational Zig compiler for any target.

Version Information

This repository copies sources from upstream. Patches listed below. Use git to find and inspect the patch diffs.

• LLVM 12.0.0-rc3
• Clang 12.0.0-rc3
• LLD 12.0.0-rc3
• Zig master branch (check the build script for the specific revision. It will will be zig 0.8.0 when the release is tagged)

For other versions, check the git tags of this repository.

Patches

• Remove unused test/ files in order to make tarball less bloated.
• LLD: add additional include directory to Zig's libunwind.

Host System Dependencies

• C++ compiler capable of building LLVM, Clang, and LLD from source
• cmake 3.4.3 or later
• make
• POSIX system (bash, mkdir, cd)
• Python

Build Instructions

build -j1 <arch>-<os>-<abi> baseline

All parameters are required:

• -j1: Replace with your jobs parameter to make.
• <arch>-<os>-<abi>: Replace with one of the Supported Triples below, or use native for the <arch> value (e.g. native-linux-gnu) to use the native architecture.
• baseline: Replace with a -mcpu parameter of Zig. baseline means it will target a generic CPU for the target. native means it will target the native CPU. See the Zig documentation for more details.

If it succeeds, the output will be in out/zig-triple-mcpu/.

Supported Triples

If you try a "not tested" one and find a problem please file an issue, and a pull request linking to the issue in the table.

If you try a "not tested" one and find that it works, please file a pull request changing the status to "OK".

If you try an "OK" one and it does not work, please check if there is an existing issue, and if not, file an issue.

Note: Generally, for Linux targets, we prefer the musl libc builds over the glibc builds here, because musl builds end up producing a static binary, which is more portable across Linux distributions.

triple	support status
aarch64_be-linux-gnu	not tested
aarch64_be-linux-musl	not tested
aarch64_be-windows-gnu	not tested
aarch64-linux-gnu	OK
aarch64-linux-musl	OK
aarch64-windows-gnu	not tested
aarch64-macos-gnu	#44
armeb-linux-gnueabi	not tested
armeb-linux-gnueabihf	not tested
armeb-linux-musleabi	not tested
armeb-linux-musleabihf	not tested
armeb-windows-gnu	not tested
arm-linux-gnueabi	not tested
arm-linux-gnueabihf	not tested
arm-linux-musleabi	OK
arm-linux-musleabihf	OK
arm-windows-gnu	not tested
i386-linux-gnu	not tested
i386-linux-musl	OK
i386-windows-gnu	OK
mips64el-linux-gnuabi64	not tested
mips64el-linux-gnuabin32	not tested
mips64el-linux-musl	#3
mips64-linux-gnuabi64	not tested
mips64-linux-gnuabin32	not tested
mips64-linux-musl	not tested
mipsel-linux-gnu	not tested
mipsel-linux-musl	#12
mips-linux-gnu	not tested
mips-linux-musl	not tested
powerpc64le-linux-gnu	#24
powerpc64le-linux-musl	#5
powerpc64-linux-gnu	not tested
powerpc64-linux-musl	not tested
powerpc-linux-gnu	not tested
powerpc-linux-musl	not tested
riscv64-linux-gnu	not tested
riscv64-linux-musl	OK
s390x-linux-gnu	not tested
s390x-linux-musl	not tested
sparc-linux-gnu	not tested
sparcv9-linux-gnu	ziglang/zig#4931
x86_64-freebsd-gnu	#45
x86_64-linux-gnu	OK
x86_64-linux-gnux32	#20
x86_64-linux-musl	OK
x86_64-windows-gnu	OK
x86_64-macos-gnu	#38

Other Notable Targets Known to Work

• arm-linux-musleabi with mcpu value of generic+v6kz. This produces a build of Zig that runs on the RPi 1 and RPi Zero.
  • If you want to produce a build for this CPU exactly, use arm1176jzf_s.