323 lines
11 KiB
Nix
323 lines
11 KiB
Nix
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{ lowPrio, newScope, pkgs, lib, stdenv, cmake
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, gccForLibs, preLibcCrossHeaders
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, libxml2, python3, isl, fetchFromGitHub, overrideCC, wrapCCWith, wrapBintoolsWith
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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 ?
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if stdenv.targetPlatform.linker == "lld"
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then null
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else pkgs.bintoolsNoLibc
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, bootBintools ?
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if stdenv.targetPlatform.linker == "lld"
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then null
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else pkgs.bintools
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, darwin
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}:
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let
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release_version = "13.0.1";
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candidate = ""; # empty or "rcN"
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dash-candidate = lib.optionalString (candidate != "") "-${candidate}";
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rev = ""; # When using a Git commit
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rev-version = ""; # When using a Git commit
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version = if rev != "" then rev-version else "${release_version}${dash-candidate}";
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targetConfig = stdenv.targetPlatform.config;
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src = fetchFromGitHub {
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owner = "llvm";
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repo = "llvm-project";
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rev = if rev != "" then rev else "llvmorg-${version}";
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sha256 = "06dv6h5dmvzdxbif2s8njki6h32796v368dyb5945x8gjj72xh7k";
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};
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llvm_meta = {
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license = lib.licenses.ncsa;
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maintainers = lib.teams.llvm.members;
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# See llvm/cmake/config-ix.cmake.
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platforms =
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lib.platforms.aarch64 ++
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lib.platforms.arm ++
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lib.platforms.mips ++
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lib.platforms.power ++
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lib.platforms.riscv ++
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lib.platforms.s390x ++
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lib.platforms.wasi ++
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lib.platforms.x86;
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};
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tools = lib.makeExtensible (tools: let
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callPackage = newScope (tools // { inherit stdenv cmake libxml2 python3 isl release_version version src buildLlvmTools; });
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mkExtraBuildCommands0 = cc: ''
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rsrc="$out/resource-root"
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mkdir "$rsrc"
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ln -s "${cc.lib}/lib/clang/${release_version}/include" "$rsrc"
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echo "-resource-dir=$rsrc" >> $out/nix-support/cc-cflags
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'';
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mkExtraBuildCommands = cc: mkExtraBuildCommands0 cc + ''
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ln -s "${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' =
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if bootBintoolsNoLibc == null
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then tools.bintoolsNoLibc
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else bootBintoolsNoLibc;
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bintools' =
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if bootBintools == null
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then tools.bintools
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else bootBintools;
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in {
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libllvm = callPackage ./llvm {
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inherit llvm_meta;
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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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libclang = callPackage ./clang {
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inherit llvm_meta;
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};
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clang-unwrapped = tools.libclang;
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llvm-manpages = lowPrio (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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clang-manpages = lowPrio (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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# TODO: lldb/docs/index.rst:155:toctree contains reference to nonexisting document 'design/structureddataplugins'
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# lldb-manpages = lowPrio (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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# pick clang appropriate for package set we are targeting
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clang =
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/**/ if stdenv.targetPlatform.libc == null then tools.clangNoLibc
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else if stdenv.targetPlatform.useLLVM or false then tools.clangUseLLVM
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else if (pkgs.targetPackages.stdenv or stdenv).cc.isGNU then tools.libstdcxxClang
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else 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 = [
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targetLlvmLibraries.compiler-rt
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];
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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 = [
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libcxx.cxxabi
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targetLlvmLibraries.compiler-rt
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];
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extraBuildCommands = mkExtraBuildCommands cc;
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};
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lld = callPackage ./lld {
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inherit llvm_meta;
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};
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lldb = callPackage ../common/lldb.nix {
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patches =
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let
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resourceDirPatch = callPackage
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({ substituteAll, libclang }: substituteAll
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{
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src = ./lldb/resource-dir.patch;
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clangLibDir = "${libclang.lib}/lib";
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})
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{ };
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in
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[
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./lldb/procfs.patch
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resourceDirPatch
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./lldb/gnu-install-dirs.patch
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]
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# This is a stopgap solution if/until the macOS SDK used for x86_64 is
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# updated.
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#
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# The older 10.12 SDK used on x86_64 as of this writing has a `mach/machine.h`
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# header that does not define `CPU_SUBTYPE_ARM64E` so we replace the one use
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# of this preprocessor symbol in `lldb` with its expansion.
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#
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# See here for some context:
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# https://github.com/NixOS/nixpkgs/pull/194634#issuecomment-1272129132
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++ lib.optional (
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stdenv.targetPlatform.isDarwin
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&& !stdenv.targetPlatform.isAarch64
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&& (lib.versionOlder darwin.apple_sdk.sdk.version "11.0")
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) ./lldb/cpu_subtype_arm64e_replacement.patch;
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inherit llvm_meta;
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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 ../common/bintools.nix { };
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bintoolsNoLibc = wrapBintoolsWith {
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bintools = tools.bintools-unwrapped;
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libc = preLibcCrossHeaders;
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};
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bintools = wrapBintoolsWith {
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bintools = tools.bintools-unwrapped;
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};
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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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libcxx.cxxabi
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targetLlvmLibraries.compiler-rt
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] ++ lib.optionals (!stdenv.targetPlatform.isWasm) [
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targetLlvmLibraries.libunwind
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];
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extraBuildCommands = ''
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echo "-rtlib=compiler-rt -Wno-unused-command-line-argument" >> $out/nix-support/cc-cflags
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echo "-B${targetLlvmLibraries.compiler-rt}/lib" >> $out/nix-support/cc-cflags
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'' + lib.optionalString (!stdenv.targetPlatform.isWasm) ''
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echo "--unwindlib=libunwind" >> $out/nix-support/cc-cflags
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'' + lib.optionalString (!stdenv.targetPlatform.isWasm && stdenv.targetPlatform.useLLVM or false) ''
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echo "-lunwind" >> $out/nix-support/cc-ldflags
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'' + lib.optionalString stdenv.targetPlatform.isWasm ''
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echo "-fno-exceptions" >> $out/nix-support/cc-cflags
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'' + mkExtraBuildCommands cc;
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};
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clangNoLibcxx = 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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targetLlvmLibraries.compiler-rt
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];
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extraBuildCommands = ''
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echo "-rtlib=compiler-rt" >> $out/nix-support/cc-cflags
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echo "-B${targetLlvmLibraries.compiler-rt}/lib" >> $out/nix-support/cc-cflags
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echo "-nostdlib++" >> $out/nix-support/cc-cflags
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'' + mkExtraBuildCommands cc;
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};
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clangNoLibc = 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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targetLlvmLibraries.compiler-rt
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];
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extraBuildCommands = ''
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echo "-rtlib=compiler-rt" >> $out/nix-support/cc-cflags
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echo "-B${targetLlvmLibraries.compiler-rt}/lib" >> $out/nix-support/cc-cflags
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'' + mkExtraBuildCommands cc;
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};
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clangNoCompilerRt = 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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extraBuildCommands = ''
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echo "-nostartfiles" >> $out/nix-support/cc-cflags
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'' + mkExtraBuildCommands0 cc;
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};
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clangNoCompilerRtWithLibc = 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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});
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libraries = lib.makeExtensible (libraries: let
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callPackage = newScope (libraries // buildLlvmTools // { inherit stdenv cmake libxml2 python3 isl release_version version src; });
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in {
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compiler-rt-libc = callPackage ./compiler-rt {
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inherit llvm_meta;
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stdenv = if stdenv.hostPlatform.useLLVM or false
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then overrideCC stdenv buildLlvmTools.clangNoCompilerRtWithLibc
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else stdenv;
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};
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compiler-rt-no-libc = callPackage ./compiler-rt {
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inherit llvm_meta;
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stdenv = if stdenv.hostPlatform.useLLVM or false
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then overrideCC stdenv buildLlvmTools.clangNoCompilerRt
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else stdenv;
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};
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# N.B. condition is safe because without useLLVM both are the same.
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compiler-rt = if stdenv.hostPlatform.isAndroid
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then libraries.compiler-rt-libc
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else libraries.compiler-rt-no-libc;
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stdenv = overrideCC stdenv buildLlvmTools.clang;
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libcxxStdenv = overrideCC stdenv buildLlvmTools.libcxxClang;
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libcxx = callPackage ./libcxx {
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inherit llvm_meta;
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stdenv = if stdenv.hostPlatform.useLLVM or false
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then overrideCC stdenv buildLlvmTools.clangNoLibcxx
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else (
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# libcxx >= 13 does not build on gcc9
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if stdenv.cc.isGNU && lib.versionOlder stdenv.cc.version "10"
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then pkgs.gcc10Stdenv
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else stdenv
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);
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};
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libcxxabi = let
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stdenv_ = if stdenv.hostPlatform.useLLVM or false
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then overrideCC stdenv buildLlvmTools.clangNoLibcxx
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else stdenv;
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cxx-headers = callPackage ./libcxx {
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inherit llvm_meta;
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stdenv = stdenv_;
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headersOnly = true;
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};
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in callPackage ./libcxxabi {
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stdenv = stdenv_;
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inherit llvm_meta cxx-headers;
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};
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libunwind = callPackage ./libunwind {
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inherit llvm_meta;
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stdenv = overrideCC stdenv buildLlvmTools.clangNoLibcxx;
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};
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openmp = callPackage ./openmp {
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inherit llvm_meta targetLlvm;
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};
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});
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noExtend = extensible: lib.attrsets.removeAttrs extensible [ "extend" ];
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|
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in { inherit tools libraries release_version; } // (noExtend libraries) // (noExtend tools)
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