518 lines
18 KiB
Nix
518 lines
18 KiB
Nix
{
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lowPrio,
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newScope,
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pkgs,
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targetPackages,
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lib,
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stdenv,
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libxcrypt,
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substitute,
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replaceVars,
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fetchFromGitHub,
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fetchpatch,
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fetchpatch2,
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overrideCC,
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wrapCCWith,
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wrapBintoolsWith,
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buildPackages,
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buildLlvmTools, # tools, but from the previous stage, for cross
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targetLlvmLibraries, # libraries, but from the next stage, for cross
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targetLlvm,
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# This is the default binutils, but with *this* version of LLD rather
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# than the default LLVM version's, if LLD is the choice. We use these for
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# the `useLLVM` bootstrapping below.
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bootBintoolsNoLibc ? if stdenv.targetPlatform.linker == "lld" then null else pkgs.bintoolsNoLibc,
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bootBintools ? if stdenv.targetPlatform.linker == "lld" then null else pkgs.bintools,
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darwin,
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gitRelease ? null,
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officialRelease ? null,
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monorepoSrc ? null,
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version ? null,
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patchesFn ? lib.id,
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# Allows passthrough to packages via newScope. This makes it possible to
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# do `(llvmPackages.override { <someLlvmDependency> = bar; }).clang` and get
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# an llvmPackages whose packages are overridden in an internally consistent way.
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...
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}@args:
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assert lib.assertMsg (lib.xor (gitRelease != null) (officialRelease != null)) (
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"must specify `gitRelease` or `officialRelease`"
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+ (lib.optionalString (gitRelease != null) " — not both")
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);
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let
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monorepoSrc' = monorepoSrc;
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metadata = rec {
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# Import releaseInfo separately to avoid infinite recursion
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inherit
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(import ./common-let.nix {
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inherit (args)
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lib
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gitRelease
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officialRelease
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version
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;
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})
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releaseInfo
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;
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inherit (releaseInfo) release_version version;
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inherit
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(import ./common-let.nix {
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inherit
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lib
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fetchFromGitHub
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release_version
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gitRelease
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officialRelease
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monorepoSrc'
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version
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;
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})
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llvm_meta
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monorepoSrc
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;
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src = monorepoSrc;
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versionDir =
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(toString ../.) + "/${if (gitRelease != null) then "git" else lib.versions.major release_version}";
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getVersionFile =
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p:
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builtins.path {
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name = baseNameOf p;
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path =
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let
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patches = args.patchesFn (import ./patches.nix);
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constraints = patches."${p}" or null;
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matchConstraint =
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{
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before ? null,
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after ? null,
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path,
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}:
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let
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check = fn: value: if value == null then true else fn release_version value;
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matchBefore = check lib.versionOlder before;
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matchAfter = check lib.versionAtLeast after;
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in
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matchBefore && matchAfter;
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patchDir =
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toString
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(
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if constraints == null then
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{ path = metadata.versionDir; }
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else
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(lib.findFirst matchConstraint { path = metadata.versionDir; } constraints)
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).path;
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in
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"${patchDir}/${p}";
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};
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};
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tools = lib.makeExtensible (
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tools:
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let
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callPackage = newScope (tools // args // metadata);
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clangVersion = lib.versions.major metadata.release_version;
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mkExtraBuildCommands0 =
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cc:
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''
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rsrc="$out/resource-root"
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mkdir "$rsrc"
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echo "-resource-dir=$rsrc" >> $out/nix-support/cc-cflags
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''
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# clang standard c headers are incompatible with FreeBSD so we have to put them in -idirafter instead of -resource-dir
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# see https://github.com/freebsd/freebsd-src/commit/f382bac49b1378da3c2dd66bf721beaa16b5d471
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+ (
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if stdenv.targetPlatform.isFreeBSD then
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''
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echo "-idirafter ${lib.getLib cc}/lib/clang/${clangVersion}/include" >> $out/nix-support/cc-cflags
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''
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else
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''
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ln -s "${lib.getLib cc}/lib/clang/${clangVersion}/include" "$rsrc"
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''
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);
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mkExtraBuildCommandsBasicRt =
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cc:
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mkExtraBuildCommands0 cc
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+ ''
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ln -s "${targetLlvmLibraries.compiler-rt-no-libc.out}/lib" "$rsrc/lib"
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'';
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mkExtraBuildCommands =
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cc:
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mkExtraBuildCommands0 cc
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+ ''
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ln -s "${targetLlvmLibraries.compiler-rt.out}/lib" "$rsrc/lib"
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ln -s "${targetLlvmLibraries.compiler-rt.out}/share" "$rsrc/share"
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'';
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bintoolsNoLibc' = if bootBintoolsNoLibc == null then tools.bintoolsNoLibc else bootBintoolsNoLibc;
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bintools' = if bootBintools == null then tools.bintools else bootBintools;
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in
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{
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libllvm = callPackage ./llvm {
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};
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# `llvm` historically had the binaries. When choosing an output explicitly,
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# we need to reintroduce `outputSpecified` to get the expected behavior e.g. of lib.get*
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llvm = tools.libllvm;
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tblgen = callPackage ./tblgen.nix {
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patches =
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builtins.filter
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# Crude method to drop polly patches if present, they're not needed for tblgen.
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(p: (!lib.hasInfix "-polly" p))
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tools.libllvm.patches;
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clangPatches = [
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# Would take tools.libclang.patches, but this introduces a cycle due
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# to replacements depending on the llvm outpath (e.g. the LLVMgold patch).
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# So take the only patch known to be necessary.
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(metadata.getVersionFile "clang/gnu-install-dirs.patch")
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];
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};
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libclang = callPackage ./clang {
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};
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clang-unwrapped = tools.libclang;
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llvm-manpages = lowPrio (
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tools.libllvm.override {
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enableManpages = true;
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python3 = pkgs.python3; # don't use python-boot
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}
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);
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clang-manpages = lowPrio (
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tools.libclang.override {
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enableManpages = true;
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python3 = pkgs.python3; # don't use python-boot
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}
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);
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# Wrapper for standalone command line utilities
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clang-tools = callPackage ./clang-tools { };
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# pick clang appropriate for package set we are targeting
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clang =
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if stdenv.targetPlatform.libc == null then
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tools.clangNoLibc
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else if stdenv.targetPlatform.isDarwin then
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tools.systemLibcxxClang
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else if stdenv.targetPlatform.useLLVM or false then
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tools.clangUseLLVM
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else if (pkgs.targetPackages.stdenv or args.stdenv).cc.isGNU then
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tools.libstdcxxClang
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else
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tools.libcxxClang;
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libstdcxxClang = wrapCCWith rec {
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cc = tools.clang-unwrapped;
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# libstdcxx is taken from gcc in an ad-hoc way in cc-wrapper.
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libcxx = null;
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extraPackages = [ targetLlvmLibraries.compiler-rt ];
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extraBuildCommands = mkExtraBuildCommands cc;
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};
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libcxxClang = wrapCCWith rec {
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cc = tools.clang-unwrapped;
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libcxx = targetLlvmLibraries.libcxx;
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extraPackages = [ targetLlvmLibraries.compiler-rt ];
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extraBuildCommands = mkExtraBuildCommands cc;
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};
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# Darwin uses the system libc++ by default. It is set up as its own clang definition so that `libcxxClang`
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# continues to use the libc++ from LLVM.
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systemLibcxxClang = wrapCCWith rec {
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cc = tools.clang-unwrapped;
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libcxx = darwin.libcxx;
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extraPackages = [ targetLlvmLibraries.compiler-rt ];
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extraBuildCommands = mkExtraBuildCommands cc;
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};
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lld = callPackage ./lld {
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};
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lldbPlugins = lib.makeExtensible (
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lldbPlugins:
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let
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callPackage = newScope (lldbPlugins // tools // args // metadata);
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in
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lib.recurseIntoAttrs { llef = callPackage ./lldb-plugins/llef.nix { }; }
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);
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lldb = callPackage ./lldb { };
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lldb-manpages = lowPrio (
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tools.lldb.override {
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enableManpages = true;
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python3 = pkgs.python3; # don't use python-boot
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}
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);
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# Below, is the LLVM bootstrapping logic. It handles building a
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# fully LLVM toolchain from scratch. No GCC toolchain should be
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# pulled in. As a consequence, it is very quick to build different
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# targets provided by LLVM and we can also build for what GCC
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# doesn’t support like LLVM. Probably we should move to some other
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# file.
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bintools-unwrapped = callPackage ./bintools.nix { };
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bintoolsNoLibc = wrapBintoolsWith {
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bintools = tools.bintools-unwrapped;
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libc = targetPackages.preLibcHeaders;
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};
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bintools = wrapBintoolsWith { bintools = tools.bintools-unwrapped; };
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clangUseLLVM = wrapCCWith rec {
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cc = tools.clang-unwrapped;
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libcxx = targetLlvmLibraries.libcxx;
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bintools = bintools';
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extraPackages = [
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targetLlvmLibraries.compiler-rt
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]
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++ lib.optionals (!stdenv.targetPlatform.isWasm && !stdenv.targetPlatform.isFreeBSD) [
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targetLlvmLibraries.libunwind
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];
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extraBuildCommands = mkExtraBuildCommands cc;
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nixSupport.cc-cflags = [
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"-rtlib=compiler-rt"
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"-Wno-unused-command-line-argument"
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"-B${targetLlvmLibraries.compiler-rt}/lib"
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]
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++ lib.optional (
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!stdenv.targetPlatform.isWasm && !stdenv.targetPlatform.isFreeBSD
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) "--unwindlib=libunwind"
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++ lib.optional (
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!stdenv.targetPlatform.isWasm
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&& !stdenv.targetPlatform.isFreeBSD
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&& stdenv.targetPlatform.useLLVM or false
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) "-lunwind"
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++ lib.optional stdenv.targetPlatform.isWasm "-fno-exceptions";
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nixSupport.cc-ldflags = lib.optionals (
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!stdenv.targetPlatform.isWasm && !stdenv.targetPlatform.isFreeBSD
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) [ "-L${targetLlvmLibraries.libunwind}/lib" ];
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};
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clangWithLibcAndBasicRtAndLibcxx = wrapCCWith rec {
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cc = tools.clang-unwrapped;
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# This is used to build compiler-rt. Make sure to use the system libc++ on Darwin.
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libcxx = if stdenv.hostPlatform.isDarwin then darwin.libcxx else targetLlvmLibraries.libcxx;
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bintools = bintools';
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extraPackages = [
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targetLlvmLibraries.compiler-rt-no-libc
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]
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++
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lib.optionals
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(
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!stdenv.targetPlatform.isWasm && !stdenv.targetPlatform.isFreeBSD && !stdenv.targetPlatform.isDarwin
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)
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[
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targetLlvmLibraries.libunwind
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];
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extraBuildCommands = mkExtraBuildCommandsBasicRt cc;
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nixSupport.cc-cflags = [
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"-rtlib=compiler-rt"
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"-Wno-unused-command-line-argument"
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"-B${targetLlvmLibraries.compiler-rt-no-libc}/lib"
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]
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++ lib.optional (
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!stdenv.targetPlatform.isWasm && !stdenv.targetPlatform.isFreeBSD && !stdenv.targetPlatform.isDarwin
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) "--unwindlib=libunwind"
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++ lib.optional (
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!stdenv.targetPlatform.isWasm
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&& !stdenv.targetPlatform.isFreeBSD
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&& stdenv.targetPlatform.useLLVM or false
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) "-lunwind"
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++ lib.optional stdenv.targetPlatform.isWasm "-fno-exceptions";
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nixSupport.cc-ldflags = lib.optionals (
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!stdenv.targetPlatform.isWasm && !stdenv.targetPlatform.isFreeBSD && !stdenv.targetPlatform.isDarwin
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) [ "-L${targetLlvmLibraries.libunwind}/lib" ];
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};
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clangWithLibcAndBasicRt = wrapCCWith rec {
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cc = tools.clang-unwrapped;
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libcxx = null;
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bintools = bintools';
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extraPackages = [ targetLlvmLibraries.compiler-rt-no-libc ];
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extraBuildCommands = mkExtraBuildCommandsBasicRt cc;
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nixSupport.cc-cflags = [
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"-rtlib=compiler-rt"
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"-B${targetLlvmLibraries.compiler-rt-no-libc}/lib"
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"-nostdlib++"
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]
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++ lib.optional stdenv.targetPlatform.isWasm "-fno-exceptions";
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};
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clangNoLibcWithBasicRt = wrapCCWith rec {
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cc = tools.clang-unwrapped;
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libcxx = null;
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bintools = bintoolsNoLibc';
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extraPackages = [ targetLlvmLibraries.compiler-rt-no-libc ];
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extraBuildCommands = mkExtraBuildCommandsBasicRt cc;
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nixSupport.cc-cflags = [
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"-rtlib=compiler-rt"
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"-B${targetLlvmLibraries.compiler-rt-no-libc}/lib"
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]
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++ lib.optional stdenv.targetPlatform.isWasm "-fno-exceptions";
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};
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clangNoLibcNoRt = wrapCCWith rec {
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cc = tools.clang-unwrapped;
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libcxx = null;
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bintools = bintoolsNoLibc';
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extraPackages = [ ];
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# "-nostartfiles" used to be needed for pkgsLLVM, causes problems so don't include it.
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extraBuildCommands = mkExtraBuildCommands0 cc;
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nixSupport.cc-cflags = lib.optional stdenv.targetPlatform.isWasm "-fno-exceptions";
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};
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# This is an "oddly ordered" bootstrap just for Darwin. Probably
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# don't want it otherwise.
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clangNoCompilerRtWithLibc =
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wrapCCWith rec {
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cc = tools.clang-unwrapped;
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libcxx = null;
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bintools = bintools';
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extraPackages = [ ];
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extraBuildCommands = mkExtraBuildCommands0 cc;
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}
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# FIXME: This should be inside the `wrapCCWith` call.
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// lib.optionalAttrs stdenv.targetPlatform.isWasm {
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nixSupport.cc-cflags = [ "-fno-exceptions" ];
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};
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# Aliases
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clangNoCompilerRt = tools.clangNoLibcNoRt;
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clangNoLibc = tools.clangNoLibcWithBasicRt;
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clangNoLibcxx = tools.clangWithLibcAndBasicRt;
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mlir = callPackage ./mlir { };
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libclc = callPackage ./libclc { };
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}
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// lib.optionalAttrs (lib.versionAtLeast metadata.release_version "19") {
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bolt = callPackage ./bolt {
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};
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}
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// lib.optionalAttrs (lib.versionAtLeast metadata.release_version "20") {
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flang = callPackage ./flang {
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mlir = tools.mlir;
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};
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}
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);
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libraries = lib.makeExtensible (
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libraries:
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let
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callPackage = newScope (libraries // buildLlvmTools // args // metadata);
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in
|
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(
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{
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compiler-rt-libc = callPackage ./compiler-rt (
|
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let
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# temp rename to avoid infinite recursion
|
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stdenv =
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# Darwin needs to use a bootstrap stdenv to avoid an infinite recursion when cross-compiling.
|
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if args.stdenv.hostPlatform.isDarwin then
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overrideCC darwin.bootstrapStdenv buildLlvmTools.clangWithLibcAndBasicRtAndLibcxx
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else if args.stdenv.hostPlatform.useLLVM or false then
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overrideCC args.stdenv buildLlvmTools.clangWithLibcAndBasicRtAndLibcxx
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else
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args.stdenv;
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in
|
||
{
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inherit stdenv;
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||
}
|
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// lib.optionalAttrs (stdenv.hostPlatform.useLLVM or false) {
|
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libxcrypt = (libxcrypt.override { inherit stdenv; }).overrideAttrs (old: {
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configureFlags = old.configureFlags ++ [ "--disable-symvers" ];
|
||
});
|
||
}
|
||
);
|
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|
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compiler-rt-no-libc = callPackage ./compiler-rt {
|
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doFakeLibgcc = stdenv.hostPlatform.useLLVM or false;
|
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stdenv =
|
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# Darwin needs to use a bootstrap stdenv to avoid an infinite recursion when cross-compiling.
|
||
if stdenv.hostPlatform.isDarwin then
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overrideCC darwin.bootstrapStdenv buildLlvmTools.clangNoLibcNoRt
|
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else
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overrideCC stdenv buildLlvmTools.clangNoLibcNoRt;
|
||
};
|
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|
||
compiler-rt =
|
||
if
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stdenv.hostPlatform.libc == null
|
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# Building the with-libc compiler-rt and WASM doesn't yet work,
|
||
# because wasilibc doesn't provide some expected things. See
|
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# compiler-rt's file for further details.
|
||
|| stdenv.hostPlatform.isWasm
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||
# Failing `#include <term.h>` in
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# `lib/sanitizer_common/sanitizer_platform_limits_freebsd.cpp`
|
||
# sanitizers, not sure where to get it.
|
||
|| stdenv.hostPlatform.isFreeBSD
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then
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libraries.compiler-rt-no-libc
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else
|
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libraries.compiler-rt-libc;
|
||
|
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stdenv = overrideCC stdenv buildLlvmTools.clang;
|
||
|
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libcxxStdenv = overrideCC stdenv buildLlvmTools.libcxxClang;
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|
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libcxx = callPackage ./libcxx {
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stdenv =
|
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if stdenv.hostPlatform.isDarwin then
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overrideCC darwin.bootstrapStdenv buildLlvmTools.clangWithLibcAndBasicRt
|
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else
|
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overrideCC stdenv buildLlvmTools.clangWithLibcAndBasicRt;
|
||
};
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|
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libunwind = callPackage ./libunwind {
|
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stdenv = overrideCC stdenv buildLlvmTools.clangWithLibcAndBasicRt;
|
||
};
|
||
|
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openmp = callPackage ./openmp {
|
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};
|
||
}
|
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// lib.optionalAttrs (lib.versionAtLeast metadata.release_version "20") {
|
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libc-overlay = callPackage ./libc {
|
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isFullBuild = false;
|
||
# Use clang due to "gnu::naked" not working on aarch64.
|
||
# Issue: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77882
|
||
stdenv = overrideCC stdenv buildLlvmTools.clang;
|
||
};
|
||
|
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libc-full = callPackage ./libc {
|
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isFullBuild = true;
|
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# Use clang due to "gnu::naked" not working on aarch64.
|
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# Issue: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77882
|
||
stdenv = overrideCC stdenv buildLlvmTools.clangNoLibcNoRt;
|
||
cmake =
|
||
if stdenv.targetPlatform.libc == "llvm" then buildPackages.cmakeMinimal else buildPackages.cmake;
|
||
python3 =
|
||
if stdenv.targetPlatform.libc == "llvm" then
|
||
buildPackages.python3Minimal
|
||
else
|
||
buildPackages.python3;
|
||
};
|
||
|
||
libc = if stdenv.targetPlatform.libc == "llvm" then libraries.libc-full else libraries.libc-overlay;
|
||
}
|
||
)
|
||
);
|
||
|
||
noExtend = extensible: lib.attrsets.removeAttrs extensible [ "extend" ];
|
||
in
|
||
{
|
||
inherit tools libraries;
|
||
inherit (metadata) release_version;
|
||
}
|
||
// (noExtend libraries)
|
||
// (noExtend tools)
|