Patches for zig on Minerva

0001-Support-Add-support-for-building-LLVM-on-Minerva.patch

Add support for building LLVM on Minerva

Adds Minerva #ifdefs for platform-specific code.

We stub out wait4, as Minerva doesn't support querying a child process's resource usage information.

0002-Triple-Add-triple-for-Minerva.patch

Add triple for Minerva

0003-Driver-Add-support-for-Minerva.patch

Add support for Minerva

Adds support for the $arch-pc-minerva target to the Clang front end. This makes the compiler look for libraries and headers in the right places, and enables some security mitigations like stack-smashing protection and position-independent code by default.

Co-authored-by: kleines Filmröllchen filmroellchen@serenityos.org

0004-Driver-Default-to-ftls-model-initial-exec-on-Serenit.patch

Default to -ftls-model=initial-exec on Minerva

This is a hack to make Clang use the initial-exec TLS model instead of the default local-exec when building code for Minerva.

This patch should be removed when we implement proper TLS support.

0005-libc-Add-support-for-Minerva.patch

Add support for Minerva

This commit teaches libc++ about what features are available in our LibC, namely:

• We do not have locale support, so no-op shims should be used in place of the C locale API.
• The number of errno constants defined by us is given by the value of the ELAST macro.
• Multithreading is implemented though the pthread library.
• Use libc++'s builtin character type table instead of the one provided by LibC as there's a lot of extra porting work to convince the rest of locale.cpp to use our character type table properly.

This commit is an adaptation of the LLVM patch by Daniel Bertalan to fit the layout of the zig-bootstrap project.

0006-cmake-Allow-undefined-symbols-on-Minerva.patch

Allow undefined symbols on Minerva

Allow undefined symbols in LLVM libraries, which is needed because only stubs are available for Minerva libraries when libc++ and libunwind are built.

0007-cmake-Support-building-shared-libLLVM-and-libClang-f.patch

Support building shared libLLVM and libClang for Minerva

This patch tells CMake that the --whole-archive linker option should be used for specifying the archives whose members will constitute these shared libraries.

Symbol versioning is disabled, as the Minerva loader doesn't support it, and the ELF sections that store version data would just waste space.

0008-Add-Minerva-to-config.guess.patch

Add Minerva to config.guess

0009-llvm-Prevent-the-use-of-POSIX-shm-on-Minerva.patch

Prevent the use of POSIX shm on Minerva

POSIX shm is not supported by Minerva yet, so this causes a compilation error.

0010-cmake-Increase-the-default-stack-size-when-running-o.patch

cmake: Increase the default stack size when running on Minerva

0011-Add-Minerva-target.patch

Add Minerva target

Named "minerva" within the code to match what LLVM says.

0012-Implement-Minerva-support-in-std.patch

Implement Minerva support in std

0013-build-Adjust-build-process-for-Minerva.patch

build: Adjust build process for Minerva

0014-zlib-Fix-implicit-write-method-declaration-error.patch

zlib: Fix implicit write() method declaration error

0015-build-Remove-unsupported-zig-linker-flag-z-seperate-.patch

build: Remove unsupported zig linker flag -z seperate-code

0016-docgen-Filter-ZIG_LIBC-from-the-environment.patch

docgen: Filter ZIG_LIBC from the environment

This environment variable can leak into the doctest builds and cause them to look for the host libraries in the target libc locations.

0017-build-Set-Zig-version-to-0.12.0-dev.141-ddf5859c2.patch

build: Set Zig version to 0.12.0-dev.141+ddf5859c2