nixpkgs/pkgs/development/compilers/llvm/13/default.nix
2021-12-03 18:01:12 +00:00

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{ lowPrio, newScope, pkgs, lib, stdenv, cmake
, gccForLibs, preLibcCrossHeaders
, libxml2, python3, isl, fetchFromGitHub, overrideCC, wrapCCWith, wrapBintoolsWith
, buildLlvmTools # tools, but from the previous stage, for cross
, targetLlvmLibraries # libraries, but from the next stage, for cross
# This is the default binutils, but with *this* version of LLD rather
# than the default LLVM verion's, if LLD is the choice. We use these for
# the `useLLVM` bootstrapping below.
, bootBintoolsNoLibc ?
if stdenv.targetPlatform.linker == "lld"
then null
else pkgs.bintoolsNoLibc
, bootBintools ?
if stdenv.targetPlatform.linker == "lld"
then null
else pkgs.bintools
, darwin
}:
let
release_version = "13.0.0";
candidate = ""; # empty or "rcN"
dash-candidate = lib.optionalString (candidate != "") "-${candidate}";
rev = ""; # When using a Git commit
rev-version = ""; # When using a Git commit
version = if rev != "" then rev-version else "${release_version}${dash-candidate}";
targetConfig = stdenv.targetPlatform.config;
src = fetchFromGitHub {
owner = "llvm";
repo = "llvm-project";
rev = if rev != "" then rev else "llvmorg-${version}";
sha256 = "0cjl0vssi4y2g4nfr710fb6cdhxmn5r0vis15sf088zsc5zydfhw";
};
llvm_meta = {
license = lib.licenses.ncsa;
maintainers = with lib.maintainers; [ lovek323 raskin dtzWill primeos ];
platforms = lib.platforms.all;
};
tools = lib.makeExtensible (tools: let
callPackage = newScope (tools // { inherit stdenv cmake libxml2 python3 isl release_version version src buildLlvmTools; });
mkExtraBuildCommands0 = cc: ''
rsrc="$out/resource-root"
mkdir "$rsrc"
ln -s "${cc.lib}/lib/clang/${release_version}/include" "$rsrc"
echo "-resource-dir=$rsrc" >> $out/nix-support/cc-cflags
'';
mkExtraBuildCommands = cc: mkExtraBuildCommands0 cc + ''
ln -s "${targetLlvmLibraries.compiler-rt.out}/lib" "$rsrc/lib"
ln -s "${targetLlvmLibraries.compiler-rt.out}/share" "$rsrc/share"
'';
bintoolsNoLibc' =
if bootBintoolsNoLibc == null
then tools.bintoolsNoLibc
else bootBintoolsNoLibc;
bintools' =
if bootBintools == null
then tools.bintools
else bootBintools;
in {
libllvm = callPackage ./llvm {
inherit llvm_meta;
};
# `llvm` historically had the binaries. When choosing an output explicitly,
# we need to reintroduce `outputSpecified` to get the expected behavior e.g. of lib.get*
llvm = tools.libllvm.out // { outputSpecified = false; };
libclang = callPackage ./clang {
inherit llvm_meta;
};
clang-unwrapped = tools.libclang.out // { outputSpecified = false; };
llvm-manpages = lowPrio (tools.libllvm.override {
enableManpages = true;
python3 = pkgs.python3; # don't use python-boot
});
clang-manpages = lowPrio (tools.libclang.override {
enableManpages = true;
python3 = pkgs.python3; # don't use python-boot
});
# TODO: lldb/docs/index.rst:155:toctree contains reference to nonexisting document 'design/structureddataplugins'
# lldb-manpages = lowPrio (tools.lldb.override {
# enableManpages = true;
# python3 = pkgs.python3; # don't use python-boot
# });
clang = if stdenv.cc.isGNU then tools.libstdcxxClang else tools.libcxxClang;
libstdcxxClang = wrapCCWith rec {
cc = tools.clang-unwrapped;
# libstdcxx is taken from gcc in an ad-hoc way in cc-wrapper.
libcxx = null;
extraPackages = [
targetLlvmLibraries.compiler-rt
];
extraBuildCommands = mkExtraBuildCommands cc;
};
libcxxClang = wrapCCWith rec {
cc = tools.clang-unwrapped;
libcxx = targetLlvmLibraries.libcxx;
extraPackages = [
targetLlvmLibraries.libcxxabi
targetLlvmLibraries.compiler-rt
];
extraBuildCommands = mkExtraBuildCommands cc;
};
lld = callPackage ./lld {
inherit llvm_meta;
};
lldb = callPackage ./lldb {
inherit llvm_meta;
inherit (darwin) libobjc bootstrap_cmds;
inherit (darwin.apple_sdk.libs) xpc;
inherit (darwin.apple_sdk.frameworks) Foundation Carbon Cocoa;
};
# Below, is the LLVM bootstrapping logic. It handles building a
# fully LLVM toolchain from scratch. No GCC toolchain should be
# pulled in. As a consequence, it is very quick to build different
# targets provided by LLVM and we can also build for what GCC
# doesnt support like LLVM. Probably we should move to some other
# file.
bintools-unwrapped = callPackage ./bintools {};
bintoolsNoLibc = wrapBintoolsWith {
bintools = tools.bintools-unwrapped;
libc = preLibcCrossHeaders;
};
bintools = wrapBintoolsWith {
bintools = tools.bintools-unwrapped;
};
clangUseLLVM = wrapCCWith rec {
cc = tools.clang-unwrapped;
libcxx = targetLlvmLibraries.libcxx;
bintools = bintools';
extraPackages = [
targetLlvmLibraries.libcxxabi
targetLlvmLibraries.compiler-rt
] ++ lib.optionals (!stdenv.targetPlatform.isWasm) [
targetLlvmLibraries.libunwind
];
extraBuildCommands = ''
echo "-rtlib=compiler-rt -Wno-unused-command-line-argument" >> $out/nix-support/cc-cflags
echo "-B${targetLlvmLibraries.compiler-rt}/lib" >> $out/nix-support/cc-cflags
'' + lib.optionalString (!stdenv.targetPlatform.isWasm) ''
echo "--unwindlib=libunwind" >> $out/nix-support/cc-cflags
'' + lib.optionalString (!stdenv.targetPlatform.isWasm && stdenv.targetPlatform.useLLVM or false) ''
echo "-lunwind" >> $out/nix-support/cc-ldflags
'' + lib.optionalString stdenv.targetPlatform.isWasm ''
echo "-fno-exceptions" >> $out/nix-support/cc-cflags
'' + mkExtraBuildCommands cc;
};
clangNoLibcxx = wrapCCWith rec {
cc = tools.clang-unwrapped;
libcxx = null;
bintools = bintools';
extraPackages = [
targetLlvmLibraries.compiler-rt
];
extraBuildCommands = ''
echo "-rtlib=compiler-rt" >> $out/nix-support/cc-cflags
echo "-B${targetLlvmLibraries.compiler-rt}/lib" >> $out/nix-support/cc-cflags
echo "-nostdlib++" >> $out/nix-support/cc-cflags
'' + mkExtraBuildCommands cc;
};
clangNoLibc = wrapCCWith rec {
cc = tools.clang-unwrapped;
libcxx = null;
bintools = bintoolsNoLibc';
extraPackages = [
targetLlvmLibraries.compiler-rt
];
extraBuildCommands = ''
echo "-rtlib=compiler-rt" >> $out/nix-support/cc-cflags
echo "-B${targetLlvmLibraries.compiler-rt}/lib" >> $out/nix-support/cc-cflags
'' + mkExtraBuildCommands cc;
};
clangNoCompilerRt = wrapCCWith rec {
cc = tools.clang-unwrapped;
libcxx = null;
bintools = bintoolsNoLibc';
extraPackages = [ ];
extraBuildCommands = ''
echo "-nostartfiles" >> $out/nix-support/cc-cflags
'' + mkExtraBuildCommands0 cc;
};
clangNoCompilerRtWithLibc = wrapCCWith rec {
cc = tools.clang-unwrapped;
libcxx = null;
bintools = bintools';
extraPackages = [ ];
extraBuildCommands = mkExtraBuildCommands0 cc;
};
});
libraries = lib.makeExtensible (libraries: let
callPackage = newScope (libraries // buildLlvmTools // { inherit stdenv cmake libxml2 python3 isl release_version version src; });
in {
compiler-rt-libc = callPackage ./compiler-rt {
inherit llvm_meta;
stdenv = if stdenv.hostPlatform.useLLVM or false
then overrideCC stdenv buildLlvmTools.clangNoCompilerRtWithLibc
else stdenv;
};
compiler-rt-no-libc = callPackage ./compiler-rt {
inherit llvm_meta;
stdenv = if stdenv.hostPlatform.useLLVM or false
then overrideCC stdenv buildLlvmTools.clangNoCompilerRt
else stdenv;
};
# N.B. condition is safe because without useLLVM both are the same.
compiler-rt = if stdenv.hostPlatform.isAndroid
then libraries.compiler-rt-libc
else libraries.compiler-rt-no-libc;
stdenv = overrideCC stdenv buildLlvmTools.clang;
libcxxStdenv = overrideCC stdenv buildLlvmTools.libcxxClang;
libcxx = callPackage ./libcxx {
inherit llvm_meta;
stdenv = if stdenv.hostPlatform.useLLVM or false
then overrideCC stdenv buildLlvmTools.clangNoLibcxx
else (
# libcxx >= 13 does not build on gcc9
if stdenv.cc.isGNU && lib.versionOlder stdenv.cc.version "10"
then pkgs.gcc10Stdenv
else stdenv
);
};
libcxxabi = let
stdenv_ = if stdenv.hostPlatform.useLLVM or false
then overrideCC stdenv buildLlvmTools.clangNoLibcxx
else stdenv;
cxx-headers = callPackage ./libcxx {
inherit llvm_meta;
stdenv = stdenv_;
headersOnly = true;
};
in callPackage ./libcxxabi {
stdenv = stdenv_;
inherit llvm_meta cxx-headers;
};
libunwind = callPackage ./libunwind {
inherit llvm_meta;
stdenv = overrideCC stdenv buildLlvmTools.clangNoLibcxx;
};
openmp = callPackage ./openmp {
inherit llvm_meta;
};
});
in { inherit tools libraries release_version; } // libraries // tools