Merge #414

414: Targets: Use none-elf instead of hermit llvm-target r=stlankes a=mkroening

As discussed in hermit-os/hermit-rs#197 (comment), this way the kernel's `libhermit.a` has `OS/ABI: UNIX - System V` and the resulting application has `OS/ABI: <unknown: ff>`. This works for the Rust-toolchain as well as the C-toolchain.

Co-authored-by: Martin Kröning <mkroening@posteo.net>

targets/aarch64-unknown-none-hermitkernel.json

@@ -7,7 +7,7 @@
     "features": "+strict-align,-neon,-fp-armv8",
     "linker": "rust-lld",
     "linker-flavor": "ld.lld",
-    "llvm-target": "aarch64-unknown-hermit",
+    "llvm-target": "aarch64-unknown-none-elf",
     "max-atomic-width": 128,
     "panic-strategy": "abort",
     "position-independent-executables": true,

targets/x86_64-unknown-none-hermitkernel.json

@@ -8,7 +8,7 @@
     "features": "-mmx,-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-3dnow,-3dnowa,-avx,-avx2,+soft-float",
     "linker": "rust-lld",
     "linker-flavor": "ld.lld",
-    "llvm-target": "x86_64-unknown-hermit",
+    "llvm-target": "x86_64-unknown-none-elf",
     "max-atomic-width": 64,
     "panic-strategy": "abort",
     "position-independent-executables": true,