commit 02cefc93a8b7555dd5e45f39348ab1473192983b
author Tim Murray <timmurray@google.com> Thu Mar 20 13:48:35 2014 -0700
committer Tim Murray <timmurray@google.com> Mon Mar 24 19:38:47 2014 -0700
tree 938e50e6d5217484260f7d5a29de0f1f01421727
parent 8c1bbdb96ee1ea6be4d35236d8af20d5a2d78f6f

Make Clang host builds hermetic on Linux.

This lays the groundwork for making builds hermetic on Darwin as well.
That will be fixed in a future patch.

bug 13435344

Change-Id: Iae82d0b9efad0598d682ff5fd4daa737aa607866

core/clang/x86_common.mk

diff --git a/core/clang/x86_common.mk b/core/clang/x86_common.mk
new file mode 100644
index 0000000..d75d83f
--- /dev/null
+++ b/core/clang/x86_common.mk
@@ -0,0 +1,42 @@
+ifeq ($(HOST_OS),darwin)
+# nothing required here yet
+endif
+
+ifeq ($(HOST_OS),linux)
+
+ifneq ($(strip $(BUILD_HOST_64bit)),)
+# Needs to be updated along with gcc
+HOST_ARCH_DESCRIPTOR_FOR_CLANG := x86_64-linux
+else
+# Needs to be updated along with gcc
+HOST_ARCH_DESCRIPTOR_FOR_CLANG := i686-linux
+endif
+
+CLANG_CONFIG_x86_LINUX_HOST_EXTRA_ASFLAGS := \
+  --sysroot=$(HOST_TOOLCHAIN_FOR_CLANG)/sysroot
+
+CLANG_CONFIG_x86_LINUX_HOST_EXTRA_CFLAGS :=
+
+CLANG_CONFIG_x86_LINUX_HOST_EXTRA_CPPFLAGS :=   \
+  --sysroot=$(HOST_TOOLCHAIN_FOR_CLANG)/sysroot \
+  -isystem $(HOST_TOOLCHAIN_FOR_CLANG)/$(HOST_ARCH_DESCRIPTOR_FOR_CLANG)/include/c++/4.6.x-google \
+  -isystem $(HOST_TOOLCHAIN_FOR_CLANG)/$(HOST_ARCH_DESCRIPTOR_FOR_CLANG)/include/c++/4.6.x-google/$(HOST_ARCH_DESCRIPTOR_FOR_CLANG) \
+  -isystem $(HOST_TOOLCHAIN_FOR_CLANG)/$(HOST_ARCH_DESCRIPTOR_FOR_CLANG)/include/c++/4.6.x-google/backward \
+
+CLANG_CONFIG_x86_LINUX_HOST_EXTRA_LDFLAGS := \
+  --sysroot=$(HOST_TOOLCHAIN_FOR_CLANG)/sysroot \
+  -B$(HOST_TOOLCHAIN_FOR_CLANG)/$(HOST_ARCH_DESCRIPTOR_FOR_CLANG)/bin \
+  -B$(HOST_TOOLCHAIN_FOR_CLANG)/lib/gcc/$(HOST_ARCH_DESCRIPTOR_FOR_CLANG)/4.6.x-google \
+  -L$(HOST_TOOLCHAIN_FOR_CLANG)/lib/gcc/$(HOST_ARCH_DESCRIPTOR_FOR_CLANG)/4.6.x-google
+
+ifneq ($(strip $(BUILD_HOST_64bit)),)
+# need to add lib64 if building 64-bit, otherwise lib
+CLANG_CONFIG_x86_LINUX_HOST_EXTRA_LDFLAGS += -L$(HOST_TOOLCHAIN_FOR_CLANG)/$(HOST_ARCH_DESCRIPTOR_FOR_CLANG)/lib64/
+else
+CLANG_CONFIG_x86_LINUX_HOST_EXTRA_LDFLAGS += -L$(HOST_TOOLCHAIN_FOR_CLANG)/$(HOST_ARCH_DESCRIPTOR_FOR_CLANG)/lib/
+endif
+endif # linux
+
+ifeq ($(HOST_OS),windows)
+# nothing required here yet
+endif
\ No newline at end of file