diff options
Diffstat (limited to 'nixpkgs/pkgs/development/compilers/llvm/7/default.nix')
| -rw-r--r-- | nixpkgs/pkgs/development/compilers/llvm/7/default.nix | 74 |
1 files changed, 52 insertions, 22 deletions
diff --git a/nixpkgs/pkgs/development/compilers/llvm/7/default.nix b/nixpkgs/pkgs/development/compilers/llvm/7/default.nix index 0b71c3a28d2..3dd067ae607 100644 --- a/nixpkgs/pkgs/development/compilers/llvm/7/default.nix +++ b/nixpkgs/pkgs/development/compilers/llvm/7/default.nix @@ -1,5 +1,6 @@ -{ lowPrio, newScope, pkgs, stdenv, cmake, gcc, libstdcxxHook +{ 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 }: @@ -24,8 +25,8 @@ let ln -s "${cc}/lib/clang/${release_version}/include" "$rsrc" ln -s "${targetLlvmLibraries.compiler-rt.out}/lib" "$rsrc/lib" echo "-resource-dir=$rsrc" >> $out/nix-support/cc-cflags - '' + stdenv.lib.optionalString (stdenv.targetPlatform.isLinux && tools.clang-unwrapped ? gcc && !(stdenv.targetPlatform.useLLVM or false)) '' - echo "--gcc-toolchain=${tools.clang-unwrapped.gcc}" >> $out/nix-support/cc-cflags + '' + stdenv.lib.optionalString (stdenv.targetPlatform.isLinux && !(stdenv.targetPlatform.useLLVM or false)) '' + echo "--gcc-toolchain=${gccForLibs}" >> $out/nix-support/cc-cflags ''; in { @@ -58,25 +59,18 @@ let libstdcxxClang = wrapCCWith rec { cc = tools.clang-unwrapped; - extraTools = [ - libstdcxxHook - ]; + # libstdcxx is taken from gcc in an ad-hoc way in cc-wrapper. + libcxx = null; extraPackages = [ targetLlvmLibraries.compiler-rt ]; - extraBuildCommands = '' - echo "-target ${targetConfig}" >> $out/nix-support/cc-cflags - echo "-B${gcc.cc}/lib/gcc/${targetConfig}/${gcc.version}" >> $out/nix-support/cc-cflags - echo "-L${gcc.cc}/lib/gcc/${targetConfig}/${gcc.version}" >> $out/nix-support/cc-ldflags - echo "-L${gcc.cc.lib}/${targetConfig}/lib" >> $out/nix-support/cc-ldflags - '' + mkExtraBuildCommands cc; + extraBuildCommands = mkExtraBuildCommands cc; }; libcxxClang = wrapCCWith rec { cc = tools.clang-unwrapped; libcxx = targetLlvmLibraries.libcxx; extraPackages = [ - targetLlvmLibraries.libcxx targetLlvmLibraries.libcxxabi targetLlvmLibraries.compiler-rt ]; @@ -87,48 +81,77 @@ let 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 + # doesnโt 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.libcxx - # targetLlvmLibraries.libcxxabi targetLlvmLibraries.compiler-rt ]; extraBuildCommands = '' - echo "-target ${stdenv.targetPlatform.config} -rtlib=compiler-rt" >> $out/nix-support/cc-cflags + 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.libcxx - # targetLlvmLibraries.libcxxabi targetLlvmLibraries.compiler-rt ]; extraBuildCommands = '' - echo "-target ${stdenv.targetPlatform.config} -rtlib=compiler-rt" >> $out/nix-support/cc-cflags + 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 -target ${stdenv.targetPlatform.config}" >> $out/nix-support/cc-cflags + echo "-nostartfiles" >> $out/nix-support/cc-cflags ''; }; @@ -148,9 +171,16 @@ let libcxxStdenv = overrideCC stdenv buildLlvmTools.libcxxClang; - libcxx = callPackage ./libc++ {}; + libcxx = callPackage ./libc++ ({} // + (stdenv.lib.optionalAttrs (stdenv.hostPlatform.useLLVM or false) { + stdenv = overrideCC stdenv buildLlvmTools.lldClangNoLibcxx; + })); - libcxxabi = callPackage ./libc++abi.nix {}; + 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 {}; }); |