nixpkgs/pkgs/development/compilers/llvm/7/default.nix
John Ericson 92f96f47b0 treewide: Get rid of cc.gcc
Instead, we have a new `gccForLibs`, which has the appropriate
definition for e.g. avoiding `x86_32` linking problems.
2020-08-02 17:12:05 +00:00

189 lines
6.3 KiB
Nix
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

{ lowPrio, newScope, pkgs, stdenv, cmake, gccForLibs
, libxml2, python3, isl, fetchurl, overrideCC, wrapCCWith, wrapBintoolsWith
, buildPackages
, buildLlvmTools # tools, but from the previous stage, for cross
, targetLlvmLibraries # libraries, but from the next stage, for cross
}:
let
release_version = "7.1.0";
version = release_version; # differentiating these is important for rc's
targetConfig = stdenv.targetPlatform.config;
fetch = name: sha256: fetchurl {
url = "https://releases.llvm.org/${release_version}/${name}-${version}.src.tar.xz";
inherit sha256;
};
clang-tools-extra_src = fetch "clang-tools-extra" "0lb4kdh7j2fhfz8kd6iv5df7m3pikiryk1vvwsf87spc90n09q0w";
tools = stdenv.lib.makeExtensible (tools: let
callPackage = newScope (tools // { inherit stdenv cmake libxml2 python3 isl release_version version fetch; });
mkExtraBuildCommands = cc: ''
rsrc="$out/resource-root"
mkdir "$rsrc"
ln -s "${cc}/lib/clang/${release_version}/include" "$rsrc"
ln -s "${targetLlvmLibraries.compiler-rt.out}/lib" "$rsrc/lib"
echo "-resource-dir=$rsrc" >> $out/nix-support/cc-cflags
'' + stdenv.lib.optionalString (stdenv.targetPlatform.isLinux && !(stdenv.targetPlatform.useLLVM or false)) ''
echo "--gcc-toolchain=${gccForLibs}" >> $out/nix-support/cc-cflags
'';
in {
llvm = callPackage ./llvm.nix { };
llvm-polly = callPackage ./llvm.nix { enablePolly = true; };
clang-unwrapped = callPackage ./clang {
inherit (tools) lld;
inherit clang-tools-extra_src;
};
clang-polly-unwrapped = callPackage ./clang {
inherit clang-tools-extra_src;
llvm = tools.llvm-polly;
enablePolly = true;
};
llvm-manpages = lowPrio (tools.llvm.override {
enableManpages = true;
python3 = pkgs.python3; # don't use python-boot
});
clang-manpages = lowPrio (tools.clang-unwrapped.override {
enableManpages = true;
python3 = pkgs.python3; # don't use python-boot
});
libclang = tools.clang-unwrapped.lib;
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.nix {};
lldb = callPackage ./lldb.nix {};
# 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 = callPackage ./bintools.nix {};
lldClang = wrapCCWith rec {
cc = tools.clang-unwrapped;
libcxx = targetLlvmLibraries.libcxx;
bintools = wrapBintoolsWith {
inherit (tools) bintools;
};
extraPackages = [
targetLlvmLibraries.libcxxabi
targetLlvmLibraries.compiler-rt
];
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
'' + stdenv.lib.optionalString (!stdenv.targetPlatform.isWasm) ''
echo "--unwindlib=libunwind" >> $out/nix-support/cc-cflags
'' + stdenv.lib.optionalString stdenv.targetPlatform.isWasm ''
echo "-fno-exceptions" >> $out/nix-support/cc-cflags
'' + mkExtraBuildCommands cc;
};
lldClangNoLibcxx = wrapCCWith rec {
cc = tools.clang-unwrapped;
libcxx = null;
bintools = wrapBintoolsWith {
inherit (tools) 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;
};
lldClangNoLibc = wrapCCWith rec {
cc = tools.clang-unwrapped;
libcxx = null;
bintools = wrapBintoolsWith {
inherit (tools) bintools;
libc = null;
};
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;
};
lldClangNoCompilerRt = wrapCCWith {
cc = tools.clang-unwrapped;
libcxx = null;
bintools = wrapBintoolsWith {
inherit (tools) bintools;
libc = null;
};
extraPackages = [ ];
extraBuildCommands = ''
echo "-nostartfiles" >> $out/nix-support/cc-cflags
'';
};
});
libraries = stdenv.lib.makeExtensible (libraries: let
callPackage = newScope (libraries // buildLlvmTools // { inherit stdenv cmake libxml2 python3 isl release_version version fetch; });
in {
compiler-rt = callPackage ./compiler-rt.nix {
stdenv = if stdenv.hostPlatform.useLLVM or false
then overrideCC stdenv buildLlvmTools.lldClangNoCompilerRt
else stdenv;
};
stdenv = overrideCC stdenv buildLlvmTools.clang;
libcxxStdenv = overrideCC stdenv buildLlvmTools.libcxxClang;
libcxx = callPackage ./libc++ ({} //
(stdenv.lib.optionalAttrs (stdenv.hostPlatform.useLLVM or false) {
stdenv = overrideCC stdenv buildLlvmTools.lldClangNoLibcxx;
}));
libcxxabi = callPackage ./libc++abi.nix ({} //
(stdenv.lib.optionalAttrs (stdenv.hostPlatform.useLLVM or false) {
stdenv = overrideCC stdenv buildLlvmTools.lldClangNoLibcxx;
libunwind = libraries.libunwind;
}));
openmp = callPackage ./openmp.nix {};
});
in { inherit tools libraries; } // libraries // tools