| commit | 561c42df5712c346d4de2e6499b06712403d3164 | [log] [tgz] |
|---|---|---|
| author | Robin Caloudis <[email protected]> | Mon May 13 21:56:01 2024 |
| committer | GitHub <[email protected]> | Mon May 13 21:56:01 2024 |
| tree | 2265a9e8aff87cf40e28c41215ea7467f07d2bf3 | |
| parent | efc7bbb917428393f543b09eecddf6e4bb5fce08 [diff] |
[libc][errno] Use macro instead of system header (#91150) ## Why Currently, the system header `errno.h` is included in `libc_errno.h`, which is supposed to be consumed by internal implementations only. As unit and hermetic tests should never use `#include <errno.h>` but instead use `#include "src/errno/libc_errno.h"`, we do not want to implicitly include `errno.h`. In order to have a clear seperation between those two, we want to pull out the definitions of errno numbers from `errno.h`. ## What * Extract the definitions of errno numbers from [include/errno.h.def](https://github.com/llvm/llvm-project/pull/91150/files#diff-ed38ed463ed50571b498a5b69039cab58dc9d145da7f751a24da9d77f07781cd) and place it under [include/llvm-libc-macros/linux/error-number-macros.h](https://github.com/llvm/llvm-project/pull/91150/files#diff-d6192866629690ebb7cefa1f0a90b6675073e9642f3279df08a04dcdb05fd892) * Provide mips-specific errno numbers in [include/llvm-libc-macros/linux/mips/error-number-macros.h](https://github.com/llvm/llvm-project/pull/91150/files#diff-3fd35a4c94e0cc359933e497b10311d857857b2e173e8afebc421b04b7527743) * Find definition of mips errno numbers in glibc [here](https://github.com/bminor/glibc/blob/ea73eb5f581ef5931fd67005aa0c526ba43366c9/sysdeps/unix/sysv/linux/mips/bits/errno.h#L32-L50) (equally defined in the Linux kernel) * Provide sparc-specific errno numbers in [include/llvm-libc-macros/linux/sparc/error-number-macros.h](https://github.com/llvm/llvm-project/pull/91150/files#diff-5f16ffb2a51a6f72ebd4403aca7e1edea48289c99dd5978a1c84385bec4f226b) * Find definition of sparc errno numbers in glibc [here](https://github.com/bminor/glibc/blob/ea73eb5f581ef5931fd67005aa0c526ba43366c9/sysdeps/unix/sysv/linux/sparc/bits/errno.h#L33-L51) (equally defined in the Linux kernel) * Include proxy header `errno_macros.h` instead of the system header `errno.h` in `libc_errno.h`/`libc_errno.cpp` Closes https://github.com/llvm/llvm-project/issues/80172
Welcome to the LLVM project!
This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.
The LLVM project has multiple components. The core of the project is itself called “LLVM”. This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer.
C-like languages use the Clang frontend. This component compiles C, C++, Objective-C, and Objective-C++ code into LLVM bitcode -- and from there into object files, using LLVM.
Other components include: the libc++ C++ standard library, the LLD linker, and more.
Consult the Getting Started with LLVM page for information on building and running LLVM.
For information on how to contribute to the LLVM project, please take a look at the Contributing to LLVM guide.
Join the LLVM Discourse forums, Discord chat, LLVM Office Hours or Regular sync-ups.
The LLVM project has adopted a code of conduct for participants to all modes of communication within the project.