| llvm's libc |
| ----------- |
| |
| These files are from the llvm-project based on release 22.1.8. |
| |
| We maintain a local fork of llvm-project that contains any Emscripten |
| specific patches: |
| |
| https://github.com/emscripten-core/llvm-project |
| |
| The current patch is based on the emscripten-libs-22 branch. |
| |
| Currently in production, we do not use LLVM's libc directly yet, but libcxx uses |
| a subset of headers from libc. So libcxx directly depends on the following |
| directories: |
| - libc/hdr |
| - libc/include/llvm-libc-macros |
| - libc/include/llvm-libc-types |
| - libc/shared |
| - libc/src/__support |
| |
| In addition, we are experimenting with using llvm-libc in overlay mode. You can |
| enable this by running with `EMCC_CFLAGS=-lllvmlibc`. See |
| https://libc.llvm.org/overlay_mode.html for more details. |
| |
| Update Instructions |
| ------------------- |
| |
| Run `system/lib/update_libcxx.py path/to/llvm-project` |
| Run `system/lib/update_llvm_libc.py path/to/llvm-project` |
| |
| Modifications |
| ------------- |
| |
| For a list of changes from upstream see the libc files that are part of: |
| |
| https://github.com/llvm/llvm-project/compare/llvmorg-22.1.8...emscripten-core:emscripten-libs-22 |
