clang/compiler-rt: Use compiler-rt and libcxx as default runtime for target clang

One can still use -stdlib=libstdc++ and -rtlib=libgcc to use gcc runtime

Signed-off-by: Khem Raj <raj.khem@gmail.com>

5 files changed, 78 insertions, 49 deletions

diff --git a/recipes-devtools/clang/clang/0004-clang-Do-not-search-clang-install-dir-relative-.-lib.patch b/recipes-devtools/clang/clang/0004-clang-Do-not-search-clang-install-dir-relative-.-lib.patch
deleted file mode 100644
index 91a3b67..0000000
--- a/recipes-devtools/clang/clang/0004-clang-Do-not-search-clang-install-dir-relative-.-lib.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-From b6080c3e17e348464b025d34d84f5851ac9f3ba3 Mon Sep 17 00:00:00 2001
-From: Khem Raj <raj.khem@gmail.com>
-Date: Fri, 27 Jan 2017 11:38:45 -0800
-Subject: [PATCH 4/4] clang: Do not search clang install dir relative ../lib
- dir
-
-This in OE is installed in native sysroot and bin/../lib
-contains native libraries not target libs
-
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
----
- lib/Driver/ToolChains.cpp | 1 -
- 1 file changed, 1 deletion(-)
-
-Index: clang/lib/Driver/ToolChains.cpp
-===================================================================
---- clang.orig/lib/Driver/ToolChains.cpp
-+++ clang/lib/Driver/ToolChains.cpp
-@@ -4221,7 +4221,7 @@ Linux::Linux(const Driver &D, const llvm
-   // directory ('Dir' below) or the ResourceDir.
-   if (StringRef(D.Dir).startswith(SysRoot)) {
-     addPathIfExists(D, D.Dir + "/../lib/" + MultiarchTriple, Paths);
--    addPathIfExists(D, D.Dir + "/../" + OSLibDir, Paths);
-+//    addPathIfExists(D, D.Dir + "/../" + OSLibDir, Paths);
-   }
- 
-   addPathIfExists(D, SysRoot + "/lib/" + MultiarchTriple, Paths);
-@@ -4265,8 +4265,8 @@ Linux::Linux(const Driver &D, const llvm
-   // searched.
-   // FIXME: It's not clear whether we should use the driver's installed
-   // directory ('Dir' below) or the ResourceDir.
--  if (StringRef(D.Dir).startswith(SysRoot))
--    addPathIfExists(D, D.Dir + "/../lib", Paths);
-+  //if (StringRef(D.Dir).startswith(SysRoot))
-+  //  addPathIfExists(D, D.Dir + "/../lib", Paths);
- 
-   addPathIfExists(D, SysRoot + "/lib", Paths);
-   addPathIfExists(D, SysRoot + "/usr/lib", Paths);
diff --git a/recipes-devtools/clang/clang/0004-clang-Prepend-trailing-to-sysroot.patch b/recipes-devtools/clang/clang/0004-clang-Prepend-trailing-to-sysroot.patch
new file mode 100644
index 0000000..fbab45e
--- /dev/null
+++ b/recipes-devtools/clang/clang/0004-clang-Prepend-trailing-to-sysroot.patch
@@ -0,0 +1,41 @@
+From b261f7a113462c8f91e729e4dd090b93ea7528e1 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Thu, 16 Mar 2017 09:02:13 -0700
+Subject: [PATCH 4/4] clang: Prepend trailing '/' to sysroot
+
+This is needed to handle a case where clang
+isntall and target sysroot are perilously same
+
+e.g.
+
+sysroot = /mnt/clang/recipe-sysroot
+clang install = /mnt/clang/recipe-sysroot-native
+
+in this case it will mistakenly assume that
+clang is installed under the same sysroot dir
+and it will try to add relative ../lib paths
+to linker steps which would then be wrong
+since they will become relative to clang
+installation and not sysroot
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ lib/Driver/ToolChains.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
+index 9d2e343536..2f3aa0680f 100644
+--- a/lib/Driver/ToolChains.cpp
++++ b/lib/Driver/ToolChains.cpp
+@@ -4095,7 +4095,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
+   GCCInstallation.init(Triple, Args);
+   Multilibs = GCCInstallation.getMultilibs();
+   llvm::Triple::ArchType Arch = Triple.getArch();
+-  std::string SysRoot = computeSysRoot();
++  std::string SysRoot = computeSysRoot() + "/";
+ 
+   // Cross-compiling binutils and GCC installations (vanilla and openSUSE at
+   // least) put various tools in a triple-prefixed directory off of the parent
+-- 
+2.12.0
+
diff --git a/recipes-devtools/clang/clang_git.bb b/recipes-devtools/clang/clang_git.bb
index cc0d45e..29e2e8f 100644
--- a/recipes-devtools/clang/clang_git.bb
+++ b/recipes-devtools/clang/clang_git.bb
@@ -15,14 +15,21 @@ LIC_FILES_CHKSUM = "file://LICENSE.TXT;md5=${LLVMMD5SUM}; \
                    "
 SRC_URI = "${LLVM_GIT}/llvm.git;protocol=${LLVM_GIT_PROTOCOL};branch=${BRANCH};name=llvm \
            ${LLVM_GIT}/clang.git;protocol=${LLVM_GIT_PROTOCOL};branch=${BRANCH};destsuffix=git/tools/clang;name=clang \
+          "
+
+# llvm patches
+SRC_URI += "\
            file://0001-llvm-Remove-CMAKE_CROSSCOMPILING-so-it-can-cross-com.patch \
            file://0002-llvm-Do-not-assume-linux-glibc.patch \
            file://0003-llvm-TargetLibraryInfo-Undefine-libc-functions-if-th.patch \
-           \
+          "
+
+# Clang patches
+SRC_URI += "\
            file://0001-clang-driver-Use-lib-for-ldso-on-OE.patch;patchdir=tools/clang \
            file://0002-clang-Driver-tools.cpp-Add-lssp-and-lssp_nonshared-o.patch;patchdir=tools/clang \
            file://0003-clang-musl-ppc-does-not-support-128-bit-long-double.patch;patchdir=tools/clang \
-           file://0004-clang-Do-not-search-clang-install-dir-relative-.-lib.patch;patchdir=tools/clang \
+           file://0004-clang-Prepend-trailing-to-sysroot.patch;patchdir=tools/clang \
           "
 
 SRCREV_FORMAT = "llvm_clang"
@@ -57,6 +64,12 @@ def get_clang_target_arch(bb, d):
 #TUNE_CCARGS_append_class-target = " -D__extern_always_inline=inline -I${PKG_CONFIG_SYSROOT_DIR}${includedir}/libxml2 "
 #LDFLAGS_append_class-target = " -L${PKG_CONFIG_SYSROOT_DIR}${libdir}/libxml2 "
 
+PACKAGECONFIG ??= "compiler-rt libcplusplus"
+PACKAGECONFIG_class-native = ""
+
+PACKAGECONFIG[compiler-rt] = "-DCLANG_DEFAULT_RTLIB=compiler-rt,,compiler-rt"
+PACKAGECONFIG[libcplusplus] = "-DCLANG_DEFAULT_CXX_STDLIB=libc++,,libcxx"
+
 EXTRA_OECMAKE="-DLLVM_ENABLE_RTTI=True \
                -DLLVM_ENABLE_FFI=False \
                -DCMAKE_SYSTEM_NAME=Linux \
diff --git a/recipes-devtools/clang/compiler-rt/0003-Disable-tsan-on-OE-glibc.patch b/recipes-devtools/clang/compiler-rt/0003-Disable-tsan-on-OE-glibc.patch
index 67e660d..045f8ac 100644
--- a/recipes-devtools/clang/compiler-rt/0003-Disable-tsan-on-OE-glibc.patch
+++ b/recipes-devtools/clang/compiler-rt/0003-Disable-tsan-on-OE-glibc.patch
@@ -1,21 +1,22 @@
-From 622ef6bbd65f71ebbaf3525d50fb357e62631a08 Mon Sep 17 00:00:00 2001
+From 00ac81c887f0f6eb31bed1e516374b6aa01b6389 Mon Sep 17 00:00:00 2001
 From: Khem Raj <raj.khem@gmail.com>
 Date: Mon, 18 Jul 2016 08:05:02 +0000
-Subject: [PATCH 3/3] Disable tsan on OE/glibc
+Subject: [PATCH 3/4] Disable tsan on OE/glibc
 
 It does not build see
 http://lists.llvm.org/pipermail/llvm-dev/2016-July/102235.html
 
 Signed-off-by: Khem Raj <raj.khem@gmail.com>
 ---
- cmake/config-ix.cmake | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
+ cmake/config-ix.cmake                | 2 +-
+ test/sanitizer_common/CMakeLists.txt | 1 -
+ 2 files changed, 1 insertion(+), 2 deletions(-)
 
 diff --git a/cmake/config-ix.cmake b/cmake/config-ix.cmake
-index cb9f74b..d7e0fba 100644
+index e0e43552e..bb3c77f6d 100644
 --- a/cmake/config-ix.cmake
 +++ b/cmake/config-ix.cmake
-@@ -472,7 +472,7 @@ else()
+@@ -491,7 +491,7 @@ else()
  endif()
  
  if (COMPILER_RT_HAS_SANITIZER_COMMON AND TSAN_SUPPORTED_ARCH AND
@@ -24,6 +25,18 @@ index cb9f74b..d7e0fba 100644
    set(COMPILER_RT_HAS_TSAN TRUE)
  else()
    set(COMPILER_RT_HAS_TSAN FALSE)
+diff --git a/test/sanitizer_common/CMakeLists.txt b/test/sanitizer_common/CMakeLists.txt
+index 9b4070b0f..e76f2680c 100644
+--- a/test/sanitizer_common/CMakeLists.txt
++++ b/test/sanitizer_common/CMakeLists.txt
+@@ -8,7 +8,6 @@ if(CMAKE_SYSTEM_NAME MATCHES "Darwin|Linux|FreeBSD" AND NOT ANDROID)
+   list(APPEND SUPPORTED_TOOLS asan)
+ endif()
+ if(CMAKE_SYSTEM_NAME MATCHES "Linux" AND NOT ANDROID)
+-  list(APPEND SUPPORTED_TOOLS tsan)
+   list(APPEND SUPPORTED_TOOLS msan)
+   list(APPEND SUPPORTED_TOOLS lsan)
+ endif()
 -- 
-2.10.0
+2.12.0
 
diff --git a/recipes-devtools/clang/compiler-rt_git.bb b/recipes-devtools/clang/compiler-rt_git.bb
index 9ceaff9..e8da315 100644
--- a/recipes-devtools/clang/compiler-rt_git.bb
+++ b/recipes-devtools/clang/compiler-rt_git.bb
@@ -56,7 +56,7 @@ do_install_append () {
 }
 
 FILES_SOLIBSDEV = ""
-FILES_${PN} += "${libdir}/clang/${BASEPV}/lib/linux/lib*${SOLIBSDEV}"
+FILES_${PN} += "${libdir}/clang/${BASEPV}/lib/linux/lib*${SOLIBSDEV} ${libdir}/clang/${BASEPV}/*.txt"
 FILES_${PN}-staticdev += "${libdir}/clang/${BASEPV}/lib/linux/*.a"
 INSANE_SKIP_${PN} = "dev-so"
 
@@ -69,7 +69,7 @@ INSANE_SKIP_${PN} = "dev-so"
 #        "
 #
 
-FILES_${PN}-dev += "${libdir}/clang/${BASEPV}/lib/linux/*.syms ${libdir}/clang/${BASEPV}/lib/linux/*.txt"
+FILES_${PN}-dev += "${libdir}/clang/${BASEPV}/lib/linux/*.syms"
 
 BBCLASSEXTEND = "native nativesdk"