From 14ce213901b625cabdce3c670ac1eeedbb5eeffc Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Fri, 5 Jun 2015 13:01:13 -0700 Subject: crossgcc: Add clang support Add a new option -C|--clang to buildgcc to build a clang based toolchain as opposed to a gcc based toolchain. This toolchain comes with the required patches needed to successfully build coreboot, and also with clang's famous scan-build script. Change-Id: I1aea7cd6002edc4f3bb2b46dc1f69a212ad18f77 Signed-off-by: Stefan Reinauer Reviewed-on: http://review.coreboot.org/10415 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi --- util/crossgcc/patches/cfe-3.6.1.src_frontend.patch | 79 ++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 util/crossgcc/patches/cfe-3.6.1.src_frontend.patch (limited to 'util/crossgcc/patches') diff --git a/util/crossgcc/patches/cfe-3.6.1.src_frontend.patch b/util/crossgcc/patches/cfe-3.6.1.src_frontend.patch new file mode 100644 index 0000000000..d69cb44091 --- /dev/null +++ b/util/crossgcc/patches/cfe-3.6.1.src_frontend.patch @@ -0,0 +1,79 @@ +Frontend driver patch from Edward O'Callaghan + +https://llvm.org/bugs/show_bug.cgi?id=21538 + +Index: include/clang/Driver/Driver.h +=================================================================== +--- cfe-3.6.1.src/include/clang/Driver/Driver.h (revision 211898) ++++ cfe-3.6.1.src/include/clang/Driver/Driver.h (working copy) +@@ -325,6 +325,14 @@ + // FIXME: This should be in CompilationInfo. + std::string GetFilePath(const char *Name, const ToolChain &TC) const; + ++ /// GetCompilerRTPath - Find Compiler-RT library path ++ /// ++ /// \param TC - The provided tool chain for additional information on ++ /// directories to search. ++ // ++ // FIXME: This should be in CompilationInfo. ++ std::string GetCompilerRTPath(const ToolChain &TC) const; ++ + /// GetProgramPath - Lookup \p Name in the list of program search paths. + /// + /// \param TC - The provided tool chain for additional information on +Index: include/clang/Driver/Options.td +=================================================================== +--- cfe-3.6.1.src/include/clang/Driver/Options.td (revision 211898) ++++ cfe-3.6.1.src/include/clang/Driver/Options.td (working copy) +@@ -1269,6 +1269,8 @@ + HelpText<"Enable Objective-C Ivar layout bitmap print trace">; + def print_libgcc_file_name : Flag<["-", "--"], "print-libgcc-file-name">, + HelpText<"Print the library path for \"libgcc.a\"">; ++def print_librt_file_name : Flag<["-", "--"], "print-librt-file-name">, ++ HelpText<"Print the library path for \"libclang_rt.builtins-ARCH.a\"">; + def print_multi_directory : Flag<["-", "--"], "print-multi-directory">; + def print_multi_lib : Flag<["-", "--"], "print-multi-lib">; + def print_multi_os_directory : Flag<["-", "--"], "print-multi-os-directory">; +Index: lib/Driver/Driver.cpp +=================================================================== +--- cfe-3.6.1.src/lib/Driver/Driver.cpp (revision 211898) ++++ cfe-3.6.1.src/lib/Driver/Driver.cpp (working copy) +@@ -756,6 +756,11 @@ + return false; + } + ++ if (C.getArgs().hasArg(options::OPT_print_librt_file_name)) { ++ llvm::outs() << GetCompilerRTPath(TC) << "\n"; ++ return false; ++ } ++ + if (C.getArgs().hasArg(options::OPT_print_multi_lib)) { + const MultilibSet &Multilibs = TC.getMultilibs(); + +@@ -1820,6 +1825,26 @@ + return Name; + } + ++std::string Driver::GetCompilerRTPath(const ToolChain &TC) const { ++ // The runtimes are located in the OS-specific resource directory. ++ SmallString<128> Res(TC.getDriver().ResourceDir); ++ const llvm::Triple &Triple = TC.getTriple(); ++ ++ // TC.getOS() yield "freebsd10.0" whereas "freebsd" is expected. ++ StringRef OSLibName = (Triple.getOS() == llvm::Triple::FreeBSD) ? ++ "freebsd" : TC.getOS(); ++ llvm::sys::path::append(Res, "lib", OSLibName); ++ ++ StringRef archName = TC.getArchName(); ++ // Until ARM libraries are build separately, we have them all in one library ++ if (TC.getArch() == llvm::Triple::arm || ++ TC.getArch() == llvm::Triple::armeb) ++ archName = "arm"; ++ ++ llvm::sys::path::append(Res, Twine("libclang_rt.builtins-") + archName + ".a"); ++ return Res.str(); ++} ++ + std::string Driver::GetProgramPath(const char *Name, + const ToolChain &TC) const { + // FIXME: Needs a better variable than DefaultTargetTriple -- cgit v1.2.3