7869d16545
Also begin to start work on cross compilation, though that will have to
be finished later.
The patches are based on the first version of
https://reviews.llvm.org/D99484. It's very annoying to do the
back-porting but the review has uncovered nothing super major so I'm
fine sticking with what I've got.
Beyond making the outputs work, I also strove to re-sync the packages,
as they have been drifting pointlessly apart for some time.
----
Other misc notes, highly incomplete
- lvm-config-native and llvm-config are put in `dev` because they are
tools just for build time.
- Clang no longer has an lld dep. That was introduced in
db29857eb3, but if clang needs help
finding lld when it is used we should just pass it flags / put in the
resource dir. Providing it at build time increases critical path
length for no good reason.
----
A note on `nativeCC`:
`stdenv` takes tools from the previous stage, so:
1. `pkgsBuildBuild`: `(?1, x, x)`
2. `pkgsBuildBuild.stdenv.cc`: `(?0, ?1, x)`
while:
1. `pkgsBuildBuild`: `(?1, x, x)`
2. `pkgsBuildBuild.targetPackages`: `(x, x, ?2)`
3. `pkgsBuildBuild.targetPackages.stdenv.cc`: `(?1, x, x)`
41 lines
1.1 KiB
Nix
41 lines
1.1 KiB
Nix
{ lib, buildPackages, fetchFromGitHub, callPackage, wrapCCWith }:
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let
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version = "4.1.0";
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src = fetchFromGitHub {
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owner = "RadeonOpenCompute";
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repo = "llvm-project";
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rev = "rocm-${version}";
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hash = "sha256-DlId/dF5r0ULl2omYPCyu1Ic3XKlLL7ndiCA0RaF264=";
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};
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in rec {
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clang = wrapCCWith rec {
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cc = clang-unwrapped;
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extraBuildCommands = ''
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clang_version=`${cc}/bin/clang -v 2>&1 | grep "clang version " | grep -E -o "[0-9.-]+"`
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rsrc="$out/resource-root"
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mkdir "$rsrc"
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ln -s "${lib.getLib cc}/lib/clang/$clang_version/include" "$rsrc"
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echo "-resource-dir=$rsrc" >> $out/nix-support/cc-cflags
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echo "-Wno-unused-command-line-argument" >> $out/nix-support/cc-cflags
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rm $out/nix-support/add-hardening.sh
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touch $out/nix-support/add-hardening.sh
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'';
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};
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clang-unwrapped = callPackage ./clang.nix {
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inherit lld llvm version;
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src = "${src}/clang";
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};
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lld = callPackage ./lld {
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inherit llvm version;
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src = "${src}/lld";
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buildLlvmTools = buildPackages.llvmPackages_rocm;
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};
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llvm = callPackage ./llvm {
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inherit version;
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src = "${src}/llvm";
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};
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}
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