Stable 2.0.0 - LLVM 12.0.0 x86_64

Stable Version 2.0.0

New features:

• Upgraded to LLVM 12.0.0
• GCC now builds for llvmtools and final system
• Eliminated /opt/gnu and /llvmtools/gnu. GCC will now be installed in /llvmtools and /usr
• Elfutils can be patched to build under LLVM
• Added script to switch between GCC or LLVM as system compiler system
• Added script to switch between GNU's binutils or LLVM's binary tools
• Zlib or Zlib-ng can be built
• Ninja or Samurai can be built.
• Build initramfs image without the mkinitramfs script

Issues:

• Skarnet's utmps segfaults if built with clang
• Diskboot.img of grub is not correctly built with clang. Grub requires GCC and patching.
• Perl 5.34.0 fails to cross-compile for llvmtools. Use perl 5.32.1 for llvmtools and perl 5.34.0 for final system
• Perl will not build with system installed zlib-ng. Use perl's bundled zlib source as a workaround.

Changelog

• Upgraded to LLVM 12.0.0
• Added ncurses to llvmtools
• Ncurses now must be built before LLVM for both llvmtools and final system
• Removed libffi and libuv from llvmtools, CMake and Python will build with bundled versions
• No longer install GCC, gmp, mpfr, & mpc in /opt/gnu and /llvmtools/gnu
• Added patch for kernel headers to build under Musl
• Added os-release file
• Upgraded procps to 3.3.17
• Upgraded findutils to 4.8.0 for llvmtools
• Upgraded expat to 2.4.1
• Updated build for inetutils 2.0
• Upgraded bison to 2.7.6
• Upgraded libcap to 2.50
• Upgraded acl to 2.3.1
• Upgraded attr to 2.5.1
• Upgraded utmps to 0.1.0.2
• Upgraded cmake to 3.20.4
• Upgraded GCC to 10.3.1_git20210424 (Alpine Linux fork)
• Added -fPIC cflag to bzip2 build
• Changed LLVM builds from MinSizeRel to Release
• Switched build files from ninja to make
• llvmtools: build optional GCC with cgnutools, instead of cross-tools.

Release Files

• cgnutools-LLVM12-musl_amd64-2.0.0.tar.xz : cgnutools that runs on x86_64 musl hosts
• gnutools-LLVM12-glibc_amd64-2.0.0.tar.xz : cgnutools that runs on x86_64 glibc hosts
• llvmtools-LLVM12-AMD64-cmlfs4-2.0.0.tar.xz : llvmtools that runs on both x86_64 glibc/musl hosts

First Completed Build

First completed build. Build is rough, but boots and runs. Several built libraries and binaries have messy run paths like:

/usr/bin/../lib/libLLVM-11.so

Instead of

/usr/lib/libLLVM-11.so

Libelf from elfutils still requires GCC to build and building grub with clang results in a grub install with a malformed diskboot.img that is 525 bytes instead of 125mb/513mb.

Beta 0.1.3 for x86_64

First successful build of CMLFS! Clang+LLVM are the main system toolchain with GCC+GNU-Binutils as secondary toolchain in /opt/gnu. GMP, MPFR, and MPC were installed in /opt/gnu. In next release, all three will probably be installed in /usr instead.

LLVM's lld is the system default linker and ld.bfd and ld.gold are available in /opt/gnu/bin

Userland is built, but not the kernel yet.

First Release (Broken Build)

First attempt in creating a LLVM toolchain without GCC. Stage 2 clang fails to build. Using LLVM 11.0.0.
Based on Genshen's docker-clang-toolchain