Yuki Okushi 679a1d1ac1 Rollup merge of #85920 - luqmana:wasm-linker-tweaks, r=petrochenkov ... Tweak wasm_base target spec to indicate linker is not GNU and update linker inferring logic for wasm-ld. Reported via [Zulip](https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/wasi.20linker.20unknown.20argument.3A.20--as-needed): we try passing `--as-needed` to the linker if it's GNU ld which `wasm-ld` is not. Usually this isn't an issue for wasm as we would use the WasmLd linker driver but because the linker in question (`wasm32-unknown-wasi-wasm-ld`) ended with `-ld` our linker inferring [logic](f64503eb55/compiler/rustc_codegen_ssa/src/back/link.rs (L957-L1040)) used the `GccLinker` implementations. (UPD: The linker inferring logic actually didn't apply in this case because the linker is actually invoked through gcc in the reported issue. But it's still worth updating the logic I think.) This change then has 2 parts: 1. Update wasm_base target spec to indicate `linker_is_gnu: false` plus a few additions of `target.is_like_wasm` to handle flags `wasm-ld` does in fact support. 2. Improve the linker detection logic to properly determine the correct flavor of wasm linker we're using when we can. We need to add the new `target.is_like_wasm` branches to handle the case where the "linker" used could be something like clang which would then under the hood call wasm-ld.		2021-06-06 19:11:18 +09:00
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abi	Auto merge of #79608 - alessandrod:bpf, r=nagisa	2021-06-06 01:02:32 +00:00
asm	Add support for BPF inline assembly	2021-05-23 18:03:27 +10:00
spec	Rollup merge of #85920 - luqmana:wasm-linker-tweaks, r=petrochenkov	2021-06-06 19:11:18 +09:00
lib.rs	Remove unused feature gates	2021-05-31 13:55:43 +02:00