[wasm] Add WASILibc module and its build support #66539
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kateinoigakukun requested review from egorzhdan, hyp and zoecarver as code owners 
| @kateinoigakukun, do you mind updating this to remove the |
| I just tried switching glibc.modulemap to listing the Bionic headers directly and most everything from the compiler validation suite kept working on my Android phone. However, it broke around 70 C++ Interop tests that worked before with the This has to do with the two different @egorzhdan, how do you work around this: don't have any libc++ headers that forward to libc headers in the C++ modulemap? The other failure is some oddity related to @kateinoigakukun, I don't know if you run these C/C++ interop tests on wasm, but everything else in the validation suite worked for me. I can slap up my libc modulemap changes if you guys are interested in trying it with your libc's, particularly @3405691582 and @mhjacobson with the BSDs and maybe @stevapple with Windows. |
| I've submitted my glibc modulemap changes in #66665, you may want to try something similar with wasi-libc and see if it works. |
[wasi-libc](https://github.com/WebAssembly/wasi-libc) is a libc implementation widely used in WASI toolchains. This patch adds a new module named WASILibc. Some extra emulation libraries are also added as wasi_emulated_xxx.
kateinoigakukun force-pushed the katei/patch-series/wasi-libc-module branch from aa845fb to 643c7c8 Compare kateinoigakukun requested review from hborla, slavapestov and xedin as code owners | Nice, working well with the headers listed in the module map, @kateinoigakukun? @egorzhdan, please review. |
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wasi-libc is a libc implementation widely used in WASI toolchains. This patch adds a new Swift and C module for it to import and use it in Swift code. This module is intentionally separate from the existing
Glibcmodule because wasi-libc is actually based on musl libc.This PR changed ClangImporter also to inject the modulemap and auxiliary header for wasi-libc into VFS to recognize it as well as Glibc.