385 lines
13 KiB
Nix
385 lines
13 KiB
Nix
{ lowPrio, newScope, pkgs, lib, stdenv, cmake, ninja
|
||
, gccForLibs, preLibcCrossHeaders
|
||
, libxml2, python3, fetchFromGitHub, overrideCC, wrapCCWith, wrapBintoolsWith
|
||
, buildLlvmTools # tools, but from the previous stage, for cross
|
||
, targetLlvmLibraries # libraries, but from the next stage, for cross
|
||
, targetLlvm
|
||
# This is the default binutils, but with *this* version of LLD rather
|
||
# than the default LLVM version'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
|
||
# LLVM release information; specify one of these but not both:
|
||
, gitRelease ? null
|
||
# i.e.:
|
||
# {
|
||
# version = /* i.e. "15.0.0" */;
|
||
# rev = /* commit SHA */;
|
||
# rev-version = /* human readable version; i.e. "unstable-2022-26-07" */;
|
||
# sha256 = /* checksum for this release, can omit if specifying your own `monorepoSrc` */;
|
||
# }
|
||
, officialRelease ? { version = "15.0.7"; sha256 = "sha256-wjuZQyXQ/jsmvy6y1aksCcEDXGBjuhpgngF3XQJ/T4s="; }
|
||
# i.e.:
|
||
# {
|
||
# version = /* i.e. "15.0.0" */;
|
||
# candidate = /* optional; if specified, should be: "rcN" */
|
||
# sha256 = /* checksum for this release, can omit if specifying your own `monorepoSrc` */;
|
||
# }
|
||
# By default, we'll try to fetch a release from `github:llvm/llvm-project`
|
||
# corresponding to the `gitRelease` or `officialRelease` specified.
|
||
#
|
||
# You can provide your own LLVM source by specifying this arg but then it's up
|
||
# to you to make sure that the LLVM repo given matches the release configuration
|
||
# specified.
|
||
, monorepoSrc ? null
|
||
}:
|
||
assert let
|
||
int = a: if a then 1 else 0;
|
||
xor = a: b: ((builtins.bitXor (int a) (int b)) == 1);
|
||
in
|
||
lib.assertMsg
|
||
(xor
|
||
(gitRelease != null)
|
||
(officialRelease != null))
|
||
("must specify `gitRelease` or `officialRelease`" +
|
||
(lib.optionalString (gitRelease != null) " — not both"));
|
||
let
|
||
monorepoSrc' = monorepoSrc;
|
||
in let
|
||
releaseInfo = if gitRelease != null then rec {
|
||
original = gitRelease;
|
||
release_version = original.version;
|
||
version = gitRelease.rev-version;
|
||
} else rec {
|
||
original = officialRelease;
|
||
release_version = original.version;
|
||
version = if original ? candidate then
|
||
"${release_version}-${original.candidate}"
|
||
else
|
||
release_version;
|
||
};
|
||
|
||
monorepoSrc = if monorepoSrc' != null then
|
||
monorepoSrc'
|
||
else let
|
||
sha256 = releaseInfo.original.sha256;
|
||
rev = if gitRelease != null then
|
||
gitRelease.rev
|
||
else
|
||
"llvmorg-${releaseInfo.version}";
|
||
in fetchFromGitHub {
|
||
owner = "llvm";
|
||
repo = "llvm-project";
|
||
inherit rev sha256;
|
||
};
|
||
|
||
inherit (releaseInfo) release_version version;
|
||
|
||
llvm_meta = {
|
||
license = lib.licenses.ncsa;
|
||
maintainers = lib.teams.llvm.members;
|
||
|
||
# See llvm/cmake/config-ix.cmake.
|
||
platforms =
|
||
lib.platforms.aarch64 ++
|
||
lib.platforms.arm ++
|
||
lib.platforms.m68k ++
|
||
lib.platforms.mips ++
|
||
lib.platforms.power ++
|
||
lib.platforms.riscv ++
|
||
lib.platforms.s390x ++
|
||
lib.platforms.wasi ++
|
||
lib.platforms.x86;
|
||
};
|
||
|
||
tools = lib.makeExtensible (tools: let
|
||
callPackage = newScope (tools // { inherit stdenv cmake ninja libxml2 python3 release_version version monorepoSrc buildLlvmTools; });
|
||
mkExtraBuildCommands0 = cc: ''
|
||
rsrc="$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;
|
||
|
||
libclang = callPackage ./clang {
|
||
inherit llvm_meta;
|
||
};
|
||
|
||
clang-unwrapped = tools.libclang;
|
||
|
||
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
|
||
# });
|
||
|
||
# pick clang appropriate for package set we are targeting
|
||
clang =
|
||
/**/ if stdenv.targetPlatform.libc == null then tools.clangNoLibc
|
||
else if stdenv.targetPlatform.useLLVM or false then tools.clangUseLLVM
|
||
else if (pkgs.targetPackages.stdenv or 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 = [
|
||
libcxx.cxxabi
|
||
targetLlvmLibraries.compiler-rt
|
||
];
|
||
extraBuildCommands = mkExtraBuildCommands cc;
|
||
};
|
||
|
||
lld = callPackage ./lld {
|
||
inherit llvm_meta;
|
||
};
|
||
|
||
lldb = callPackage ../common/lldb.nix {
|
||
src = callPackage ({ runCommand }: runCommand "lldb-src-${version}" {} ''
|
||
mkdir -p "$out"
|
||
cp -r ${monorepoSrc}/cmake "$out"
|
||
cp -r ${monorepoSrc}/lldb "$out"
|
||
'') { };
|
||
patches =
|
||
let
|
||
resourceDirPatch = callPackage
|
||
({ substituteAll, libclang }: substituteAll
|
||
{
|
||
src = ./lldb/resource-dir.patch;
|
||
clangLibDir = "${libclang.lib}/lib";
|
||
})
|
||
{ };
|
||
in
|
||
[
|
||
./lldb/procfs.patch # FIXME: do we need this?
|
||
resourceDirPatch
|
||
./lldb/gnu-install-dirs.patch
|
||
];
|
||
inherit llvm_meta;
|
||
};
|
||
|
||
# Below, is the LLVM bootstrapping logic. It handles building a
|
||
# fully LLVM toolchain from scratch. No GCC toolchain should be
|
||
# pulled in. As a consequence, it is very quick to build different
|
||
# targets provided by LLVM and we can also build for what GCC
|
||
# doesn’t support like LLVM. Probably we should move to some other
|
||
# file.
|
||
|
||
bintools-unwrapped = callPackage ../common/bintools.nix { };
|
||
|
||
bintoolsNoLibc = wrapBintoolsWith {
|
||
bintools = tools.bintools-unwrapped;
|
||
libc = preLibcCrossHeaders;
|
||
};
|
||
|
||
bintools = wrapBintoolsWith {
|
||
bintools = tools.bintools-unwrapped;
|
||
};
|
||
|
||
clangUseLLVM = wrapCCWith rec {
|
||
cc = tools.clang-unwrapped;
|
||
libcxx = targetLlvmLibraries.libcxx;
|
||
bintools = bintools';
|
||
extraPackages = [
|
||
libcxx.cxxabi
|
||
targetLlvmLibraries.compiler-rt
|
||
] ++ lib.optionals (!stdenv.targetPlatform.isWasm) [
|
||
targetLlvmLibraries.libunwind
|
||
];
|
||
extraBuildCommands = mkExtraBuildCommands cc;
|
||
nixSupport.cc-cflags =
|
||
[ "-rtlib=compiler-rt"
|
||
"-Wno-unused-command-line-argument"
|
||
"-B${targetLlvmLibraries.compiler-rt}/lib"
|
||
]
|
||
++ lib.optional (!stdenv.targetPlatform.isWasm) "--unwindlib=libunwind"
|
||
++ lib.optional
|
||
(!stdenv.targetPlatform.isWasm && stdenv.targetPlatform.useLLVM or false)
|
||
"-lunwind"
|
||
++ lib.optional stdenv.targetPlatform.isWasm "-fno-exceptions";
|
||
};
|
||
|
||
clangNoLibcxx = wrapCCWith rec {
|
||
cc = tools.clang-unwrapped;
|
||
libcxx = null;
|
||
bintools = bintools';
|
||
extraPackages = [
|
||
targetLlvmLibraries.compiler-rt
|
||
];
|
||
extraBuildCommands = mkExtraBuildCommands cc;
|
||
nixSupport.cc-cflags = [
|
||
"-rtlib=compiler-rt"
|
||
"-B${targetLlvmLibraries.compiler-rt}/lib"
|
||
"-nostdlib++"
|
||
];
|
||
};
|
||
|
||
clangNoLibc = wrapCCWith rec {
|
||
cc = tools.clang-unwrapped;
|
||
libcxx = null;
|
||
bintools = bintoolsNoLibc';
|
||
extraPackages = [
|
||
targetLlvmLibraries.compiler-rt
|
||
];
|
||
extraBuildCommands = mkExtraBuildCommands cc;
|
||
nixSupport.cc-cflags = [
|
||
"-rtlib=compiler-rt"
|
||
"-B${targetLlvmLibraries.compiler-rt}/lib"
|
||
];
|
||
};
|
||
|
||
clangNoCompilerRt = wrapCCWith rec {
|
||
cc = tools.clang-unwrapped;
|
||
libcxx = null;
|
||
bintools = bintoolsNoLibc';
|
||
extraPackages = [ ];
|
||
extraBuildCommands = mkExtraBuildCommands0 cc;
|
||
nixSupport.cc-cflags = [ "-nostartfiles" ];
|
||
};
|
||
|
||
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 ninja libxml2 python3 release_version version monorepoSrc; });
|
||
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;
|
||
|
||
libcxxabi = let
|
||
# CMake will "require" a compiler capable of compiling C++ programs
|
||
# cxx-header's build does not actually use one so it doesn't really matter
|
||
# what stdenv we use here, as long as CMake is happy.
|
||
cxx-headers = callPackage ./libcxx {
|
||
inherit llvm_meta;
|
||
# Note that if we use the regular stdenv here we'll get cycle errors
|
||
# when attempting to use this compiler in the stdenv.
|
||
#
|
||
# The final stdenv pulls `cxx-headers` from the package set where
|
||
# hostPlatform *is* the target platform which means that `stdenv` at
|
||
# that point attempts to use this toolchain.
|
||
#
|
||
# So, we use `stdenv_` (the stdenv containing `clang` from this package
|
||
# set, defined below) to sidestep this issue.
|
||
#
|
||
# Because we only use `cxx-headers` in `libcxxabi` (which depends on the
|
||
# clang stdenv _anyways_), this is okay.
|
||
stdenv = stdenv_;
|
||
headersOnly = true;
|
||
};
|
||
|
||
# `libcxxabi` *doesn't* need a compiler with a working C++ stdlib but it
|
||
# *does* need a relatively modern C++ compiler (see:
|
||
# https://releases.llvm.org/15.0.0/projects/libcxx/docs/index.html#platform-and-compiler-support).
|
||
#
|
||
# So, we use the clang from this LLVM package set, like libc++
|
||
# "boostrapping builds" do:
|
||
# https://releases.llvm.org/15.0.0/projects/libcxx/docs/BuildingLibcxx.html#bootstrapping-build
|
||
#
|
||
# We cannot use `clangNoLibcxx` because that contains `compiler-rt` which,
|
||
# on macOS, depends on `libcxxabi`, thus forming a cycle.
|
||
stdenv_ = overrideCC stdenv buildLlvmTools.clangNoCompilerRtWithLibc;
|
||
in callPackage ./libcxxabi {
|
||
stdenv = stdenv_;
|
||
inherit llvm_meta cxx-headers;
|
||
};
|
||
|
||
# Like `libcxxabi` above, `libcxx` requires a fairly modern C++ compiler,
|
||
# so: we use the clang from this LLVM package set instead of the regular
|
||
# stdenv's compiler.
|
||
libcxx = callPackage ./libcxx {
|
||
inherit llvm_meta;
|
||
stdenv = overrideCC stdenv buildLlvmTools.clangNoLibcxx;
|
||
};
|
||
|
||
libunwind = callPackage ./libunwind {
|
||
inherit llvm_meta;
|
||
stdenv = overrideCC stdenv buildLlvmTools.clangNoLibcxx;
|
||
};
|
||
|
||
openmp = callPackage ./openmp {
|
||
inherit llvm_meta targetLlvm;
|
||
};
|
||
});
|
||
noExtend = extensible: lib.attrsets.removeAttrs extensible [ "extend" ];
|
||
|
||
in { inherit tools libraries release_version; } // (noExtend libraries) // (noExtend tools)
|