Chris Tate
c41f1a8be9
* Expand LLVM native output targets - Add owned helper and runtime-pack contracts for macOS x64, Linux glibc/musl, Windows x64, and WASI. - Generalize LLVM target selection, package validation, linker plans, and release/CI matrices. - Document linker boundaries and add focused native-output and runtime-pack coverage. * Pin Windows LLVM helper CI to VS 2022 The official LLVM archive needs the Visual Studio 2022 CMake generator, which is not guaranteed by windows-latest. * Align bootstrap cache with LLVM runtime-pack builds Use the same target-specific helper and linker identity before and after compiler loading so routed executable cache hits remain lightweight. * Install Windows LLVM CI tools with Chocolatey windows-2022 includes Visual Studio but not winget; use its available Chocolatey bootstrap for CMake and Ninja. * Prevent Zig version probes from leaving runtime-pack objects Run runtime-pack compiler version probes in a private temporary directory and remove the accidental tracked WASI a.o file. * Use 7-Zip for Windows LLVM setup Extract the official LLVM development archive with two-stage 7-Zip instead of Windows tar.exe, which timed out while materializing the toolchain tree. * Define ssize_t for the MSVC runtime pack Clang's MSVC target does not expose POSIX ssize_t through sys/types.h; define the pointer-sized runtime type without affecting MinGW. * Build the Windows runtime pack with Zig Use the MinGW-compatible Windows sysroot required by the runtime while retaining COFF helper output and installing Zig in the Windows native CI lane. * Give macOS LLVM differential shard time to finish Shard 1 passed its setup and focused contracts but was cancelled during its cold LLVM differential slice at the 20-minute job limit.
scriptc LLVM code-generation helper
This out-of-process helper owns LLVM assembly and object emission for
scriptc. It is built against exactly LLVM 22.1.8 and currently contains only
the AArch64 backend. The shipping @scriptc/llvm-darwin-arm64 package builds
and carries the executable; the compiler resolves that package directly and
never searches PATH for this program.
The ordinary workspace pnpm -r build does not rebuild this release artifact.
On macOS arm64, install CMake, Ninja, and Homebrew llvm@22, then build it
explicitly when working on native emission or preparing a package:
$ brew install cmake ninja llvm@22
$ pnpm --filter @scriptc/llvm-darwin-arm64 build:native
The protocol is intentionally small and versioned:
The packaged helper itself requires macOS 15 or newer because that is the minimum version of the pinned LLVM bottle it statically links. Its emitted assembly and objects separately target macOS 14 via the triple below.
scriptc-llvm-codegen version --format=json
scriptc-llvm-codegen emit --input app.ll --output app.o --filetype obj \
--target arm64-apple-macosx14.0.0 --opt-level 2 \
--relocation-model pic --diagnostic-format json --source-path app.ts
Emission uses LLVM 22's default per-module O2 pipeline, including coroutine lowering, verifies before and after optimization, and publishes through a private sibling file so a failed or interrupted request cannot truncate the requested output.