| author |  Carl Åstholm <carl@astholm.se> 2025-03-23 14:14:42+01:00 |
| committer |  Alex Rønne Petersen <alex@alexrp.com> 2025-03-24 07:04:33+01:00 |
| log | 777215d78bd49597dc0b369c8b71765a0e5d338c |
| tree | 0b2278b712dc84ebeed4367448131c89545ae3e6 |
| parent | 26fdb81c16760b5aabbd1905ef96cefdf596fc3d |
Use `-unknown` when converting WASI/Emscripten target triples into LLVM triples
The "musl" part of the Zig target triples `wasm32-wasi-musl` and
`wasm32-emscripten-musl` refers to the libc, not really the ABI.
For WASM, most LLVM-based tooling uses `wasm32-wasi`, which is
normalized into `wasm32-unknown-wasi`, with an implicit `-unknown` and
without `-musl`.
Similarly, Emscripten uses `wasm32-unknown-emscripten` without `-musl`.
By using `-unknown` instead of `-musl` we get better compatibility with
external tooling.1 files changed, 6 insertions(+), 1 deletions(-)
src- codegen
src/codegen/llvm.zig+6-1
| ... | ... | @@ -264,7 +264,12 @@ pub fn targetTriple(allocator: Allocator, target: std.Target) ![]const u8 { |
| 264 | 264 | .eabihf => "eabihf", |
| 265 | 265 | .android => "android", |
| 266 | 266 | .androideabi => "androideabi", |
| 267 | .musl => "musl", | |
| 267 | .musl => switch (target.os.tag) { | |
| 268 | // For WASI/Emscripten, "musl" refers to the libc, not really the ABI. | |
| 269 | // "unknown" provides better compatibility with LLVM-based tooling for these targets. | |
| 270 | .wasi, .emscripten => "unknown", | |
| 271 | else => "musl", | |
| 272 | }, | |
| 268 | 273 | .muslabin32 => "musl", // Should be muslabin32 in LLVM 20. |
| 269 | 274 | .muslabi64 => "musl", // Should be muslabi64 in LLVM 20. |
| 270 | 275 | .musleabi => "musleabi", |