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Tim Schumacher 2f3b9c49a5 LibPthread: Move the pthread and semaphore implementation to LibC 
This additionally adds some compatibility code to redirect linking
attempts for LibPthread to LibC instead.
2022-07-19 11:00:35 +01:00
..
i686clang LibPthread: Move the pthread and semaphore implementation to LibC 2022-07-19 11:00:35 +01:00
x86_64clang LibPthread: Move the pthread and semaphore implementation to LibC 2022-07-19 11:00:35 +01:00
README.md Toolchain: Introduce stubs for core system libraries 2021-10-17 17:09:58 +01:00

README.md

Library stubs

This directory contains stubs for SerenityOS libraries (LibC, LibM, LibDl, LibPthread) that are referenced from the LLVM runtime libraries. These are needed by the linker in order to add the required DT_NEEDED entries.

Do these need to be updated?

Generally, no. LLVM does not use the header files to decide which functionality it can use. After adding a new function to a header, you don't have to worry about LLVM toolchain builds failing because the symbol is not present in the stubs.

How to generate these?

First, you need to have a working SerenityOS installation that's been built by the Clang toolchain. Then, using the llvm-ifs tool, these libraries need to be converted into a stripped-down stub form. To do that, run the following command:

Toolchain/Local/clang/bin/llvm-ifs --output-format=ELF --output=<path-to-stub> <path-to-original>