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darwin.binutils: use clang for as on aarch64-darwin (#115167)

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Without this change `as` on `aarch64-darwin` is defunct:

```
$ /nix/store/g11xba8ch20zndaf32hfnap46z47b5k3-cctools-port-949.0.1/bin/as -v
/nix/store/g11xba8ch20zndaf32hfnap46z47b5k3-cctools-port-949.0.1/bin/as: assembler (/nix/store/g11xba8ch20zndaf32hfnap46z47b5k3-cctools-port-949.0.1/libexec/as/arm64/as or /nix/store/g11xba8ch20zndaf32hfnap46z47b5k3-cctools-port-949.0.1/libexec/as/arm64/as) for architecture arm64 not installed
Installed assemblers are:
/nix/store/g11xba8ch20zndaf32hfnap46z47b5k3-cctools-port-949.0.1/libexec/as/ppc64/as for architecture ppc64
/nix/store/g11xba8ch20zndaf32hfnap46z47b5k3-cctools-port-949.0.1/libexec/as/x86_64/as for architecture x86_64
/nix/store/g11xba8ch20zndaf32hfnap46z47b5k3-cctools-port-949.0.1/libexec/as/ppc/as for architecture ppc
/nix/store/g11xba8ch20zndaf32hfnap46z47b5k3-cctools-port-949.0.1/libexec/as/i386/as for architecture i386
/nix/store/g11xba8ch20zndaf32hfnap46z47b5k3-cctools-port-949.0.1/libexec/as/arm/as for architecture arm
```

Apple defaults to Clang in all cases from what I see, but nixpkgs prefers `cctools`: #51881.
This commit is contained in:
Ivan Babrou 2021-03-16 21:27:34 -07:00 committed by GitHub
parent effe752c61
commit a730703e6f
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 13 additions and 2 deletions
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13
pkgs/os-specific/darwin/binutils/default.nix
View File

@ -1,4 +1,4 @@
{ lib, stdenv, binutils-unwrapped, cctools, llvm }:
{ lib, stdenv, makeWrapper, binutils-unwrapped, cctools, llvm, clang-unwrapped }:
# Make sure both underlying packages claim to have prepended their binaries
# with the same targetPrefix.
@ -49,8 +49,19 @@ stdenv.mkDerivation {
ln -sv "$path" "$dest_path"
done
done
''
# On aarch64-darwin we must use clang, because "as" from cctools just doesn't
# handle the arch. Proxying calls to clang produces quite a bit of warnings,
# and using clang directly here is a better option than relying on cctools.
# On x86_64-darwin the Clang version is too old to support this mode.
+ lib.optionalString stdenv.isAarch64 ''
rm $out/bin/as
makeWrapper "${clang-unwrapped}/bin/clang" "$out/bin/as" \
--add-flags "-x assembler -integrated-as -c"
'';
nativeBuildInputs = lib.optionals stdenv.isAarch64 [ makeWrapper ];
passthru = {
inherit targetPrefix;
};

2
pkgs/top-level/darwin-packages.nix
View File

@ -23,7 +23,7 @@ in
binutils-unwrapped = callPackage ../os-specific/darwin/binutils {
inherit (darwin) cctools;
inherit (pkgs) binutils-unwrapped;
inherit (pkgs.llvmPackages_7) llvm;
inherit (pkgs.llvmPackages_7) llvm clang-unwrapped;
};
binutils = pkgs.wrapBintoolsWith {