unicore32 core architecture: build infrastructure

This patch implements build infrastructure.

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 95 insertions, 0 deletions

diff --git a/arch/unicore32/Makefile b/arch/unicore32/Makefile
new file mode 100644
index 0000000..e08d6d3
--- /dev/null
+++ b/arch/unicore32/Makefile
@@ -0,0 +1,95 @@
+#
+# arch/unicore32/Makefile
+#
+# This file is included by the global makefile so that you can add your own
+# architecture-specific flags and dependencies.
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 2002~2010 by Guan Xue-tao
+#
+ifneq ($(SUBARCH),$(ARCH))
+	ifeq ($(CROSS_COMPILE),)
+		CROSS_COMPILE := $(call cc-cross-prefix, unicore32-linux-)
+	endif
+endif
+
+LDFLAGS_vmlinux		:= -p --no-undefined -X
+
+OBJCOPYFLAGS		:= -O binary -R .note -R .note.gnu.build-id -R .comment -S
+
+# Never generate .eh_frame
+KBUILD_CFLAGS		+= $(call cc-option,-fno-dwarf2-cfi-asm)
+
+# Never use hard float in kernel
+KBUILD_CFLAGS		+= -msoft-float
+
+ifeq ($(CONFIG_FRAME_POINTER),y)
+KBUILD_CFLAGS		+= -mno-sched-prolog
+endif
+
+CHECKFLAGS		+= -D__unicore32__
+
+head-y			:= arch/unicore32/kernel/head.o
+head-y			+= arch/unicore32/kernel/init_task.o
+
+core-y			+= arch/unicore32/kernel/
+core-y			+= arch/unicore32/mm/
+
+libs-y			+= arch/unicore32/lib/
+
+ASM_GENERATED_DIR	:= $(srctree)/arch/unicore32/include/generated
+LINUXINCLUDE		+= -I$(ASM_GENERATED_DIR)
+
+ASM_GENERIC_HEADERS	:= atomic.h auxvec.h
+ASM_GENERIC_HEADERS	+= bitsperlong.h bug.h bugs.h
+ASM_GENERIC_HEADERS	+= cputime.h current.h
+ASM_GENERIC_HEADERS	+= device.h div64.h
+ASM_GENERIC_HEADERS	+= emergency-restart.h errno.h
+ASM_GENERIC_HEADERS	+= fb.h fcntl.h ftrace.h
+ASM_GENERIC_HEADERS	+= hardirq.h hw_irq.h
+ASM_GENERIC_HEADERS	+= ioctl.h ioctls.h ipcbuf.h irq_regs.h
+ASM_GENERIC_HEADERS	+= kdebug.h kmap_types.h
+ASM_GENERIC_HEADERS	+= local.h
+ASM_GENERIC_HEADERS	+= mman.h module.h msgbuf.h
+ASM_GENERIC_HEADERS	+= param.h parport.h percpu.h poll.h posix_types.h
+ASM_GENERIC_HEADERS	+= resource.h
+ASM_GENERIC_HEADERS	+= scatterlist.h sections.h segment.h sembuf.h serial.h
+ASM_GENERIC_HEADERS	+= setup.h shmbuf.h shmparam.h
+ASM_GENERIC_HEADERS	+= siginfo.h signal.h sizes.h
+ASM_GENERIC_HEADERS	+= socket.h sockios.h stat.h statfs.h swab.h syscalls.h
+ASM_GENERIC_HEADERS	+= termbits.h termios.h topology.h types.h
+ASM_GENERIC_HEADERS	+= ucontext.h unaligned.h user.h
+ASM_GENERIC_HEADERS	+= vga.h
+ASM_GENERIC_HEADERS	+= xor.h
+
+archprepare:
+ifneq ($(ASM_GENERATED_DIR), $(wildcard $(ASM_GENERATED_DIR)))
+	$(Q)mkdir -p $(ASM_GENERATED_DIR)/asm
+	$(Q)$(foreach a, $(ASM_GENERIC_HEADERS),	\
+		echo '#include <asm-generic/$a>'	\
+			> $(ASM_GENERATED_DIR)/asm/$a; )
+endif
+
+boot			:= arch/unicore32/boot
+
+# Default target when executing plain make
+KBUILD_IMAGE		:= zImage
+
+all:	$(KBUILD_IMAGE)
+
+zImage Image uImage: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
+MRPROPER_DIRS		+= $(ASM_GENERATED_DIR)
+
+archclean:
+	$(Q)$(MAKE) $(clean)=$(boot)
+
+define archhelp
+  echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
+  echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
+  echo  '  uImage        - U-Boot wrapped zImage'
+endef