125 lines
3.0 KiB
Nix
125 lines
3.0 KiB
Nix
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{
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stdenv
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, llvmPackages_latest
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, lib
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, fetchFromGitHub
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, cmake
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, bash
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, python3
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, perl
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, which
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, elfutils
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, libffi
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, zlib
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, pkg-config
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, enableDebug ? false
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, gitUrl ? "https://repo.hca.bsc.es/gitlab/rferrer/llvm-epi.git"
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, gitBranch ? "EPI-0.7"
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, gitCommit ? "479518dc58dfceb23fc90667a5d6253e429f0fc2"
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}:
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let
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llvmPackages = llvmPackages_latest;
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llvmStdenv = llvmPackages.stdenv;
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# needed to set the rpath of libstdc++ for clang-tblgen
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gcc = stdenv.cc;
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git = rec {
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version = src.shortRev;
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src = builtins.fetchGit {
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url = gitUrl;
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ref = gitBranch;
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rev = gitCommit;
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};
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};
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source = git;
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in llvmStdenv.mkDerivation rec {
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pname = "clang-epi";
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inherit (source) src version;
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enableParallelBuilding = true;
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isClang = true;
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patches = if (gitBranch == "EPI-0.7") then [
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./include-cstdint.patch
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] else [
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];
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# See https://reviews.llvm.org/D135402
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env.LDFLAGS = "-Wl,--undefined-version";
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passthru = {
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CC = "clang";
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CXX = "clang++";
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};
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nativeBuildInputs = [
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zlib
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gcc.cc.lib # Required for libstdc++.so.6
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];
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buildInputs = [
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which
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bash
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python3
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perl
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cmake
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llvmPackages.lld
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elfutils
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libffi
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pkg-config
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zlib
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];
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# Error with -D_FORTIFY_SOURCE=2, see https://bugs.gentoo.org/636604:
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# /build/source/compiler-rt/lib/tsan/dd/dd_interceptors.cpp:225:20:
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# error: redefinition of 'realpath'
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# Requires disabling the "fortify" set of flags, however, for performance we
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# disable all:
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hardeningDisable = [ "all" ];
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cmakeBuildType = if enableDebug then "Debug" else "Release";
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dontStrip = enableDebug;
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dontUseCmakeBuildDir = true;
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# Fix shebangs, /usr/bin/env doesn't exist
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prePatch = ''
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patchShebangs clang/utils/EPI/generate-epi-builtins-def.py
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'';
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# Fix the host triple, as it has changed in a newer config.guess:
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# https://git.savannah.gnu.org/gitweb/?p=config.git;a=commitdiff;h=ca9bfb8cc75a2be1819d89c664a867785c96c9ba
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preConfigure = ''
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mkdir -p build
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cd build
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cmakeDir="../llvm"
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cmakeFlagsArray=(
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"-DLLVM_HOST_TRIPLE=${llvmStdenv.targetPlatform.config}"
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"-DLLVM_DEFAULT_TARGET_TRIPLE=riscv64-unknown-linux-gnu"
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"-DLLVM_TARGETS_TO_BUILD=RISCV"
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"-DLLVM_BUILD_LLVM_DYLIB=ON"
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"-DLLVM_LINK_LLVM_DYLIB=ON"
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# Required to run clang-ast-dump and clang-tblgen during build
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"-DCMAKE_BUILD_RPATH=$PWD/lib:${zlib}/lib:${gcc.cc.lib}/lib"
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"-DLLVM_ENABLE_LLD=ON"
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"-DCMAKE_CXX_FLAGS_DEBUG=-g -ggnu-pubnames"
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"-DCMAKE_EXE_LINKER_FLAGS_DEBUG=-Wl,--gdb-index"
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"-DLLVM_LIT_ARGS=-sv --xunit-xml-output=xunit.xml"
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"-DLLVM_ENABLE_PROJECTS=clang;lld"
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"-DLLVM_ENABLE_ASSERTIONS=ON"
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"-DLLVM_INSTALL_TOOLCHAIN_ONLY=ON"
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"-DCMAKE_INSTALL_BINDIR=bin"
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"-DLLVM_ENABLE_ZLIB=FORCE_ON"
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"-DLLVM_ENABLE_LIBXML2=OFF"
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# Set the rpath to include external libraries (zlib) both on build and
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# install
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"-DCMAKE_INSTALL_RPATH_USE_LINK_PATH=ON"
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"-DCMAKE_INSTALL_RPATH=${zlib}/lib:${gcc.cc.lib}/lib"
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)
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'';
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}
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