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authorStefan Reinauer <stefan.reinauer@coreboot.org>2015-06-05 13:01:13 -0700
committerStefan Reinauer <stefan.reinauer@coreboot.org>2015-06-08 20:00:11 +0200
commit14ce213901b625cabdce3c670ac1eeedbb5eeffc (patch)
treed06ba57fa6ce8a1fc0daf6fa1f70b97311031e95 /util/crossgcc/patches
parent699ac27decfa241854ee6517d7db8d53bb2e8750 (diff)
downloadcoreboot-14ce213901b625cabdce3c670ac1eeedbb5eeffc.tar.xz
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 <stefan.reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/10415 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'util/crossgcc/patches')
-rw-r--r--util/crossgcc/patches/cfe-3.6.1.src_frontend.patch79
1 files changed, 79 insertions, 0 deletions
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