blob: 12c6907b92dd1fb06eaf047145366e4d8248d0d9 [file] [log] [blame]
#
# Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
UTS_MACHINE := arc
PROCESSOR := arc700
KBUILD_DEFCONFIG := aa4_defconfig
PLATFORM := ruby
export PLATFORM
#LDFLAGS_vmlinux :=-X -T arch/$(ARCH)/kernel/vmlinux.lds
GZFLAGS :=-9
KBUILD_CFLAGS += -Iarch/arc/include/asm/board-$(PLATFORM) -Iinclude/common -Iinclude/shared -Iinclude/kernel
KBUILD_CFLAGS += -mA7 -mlong-calls -fno-common -pipe -fno-builtin \
-D__linux__ -fcall-used-gp -multcost=16
ifdef CONFIG_ARC_HAS_LLSC
KBUILD_CFLAGS += -mlock
endif
ifdef CONFIG_ARC_HAS_SWAPE
KBUILD_CFLAGS += -mswape
endif
ifdef CONFIG_ARC_HAS_RTSC
KBUILD_CFLAGS += -mrtsc
endif
# preprocessor macros due to above: __Xlock __Xswape __Xrtsc
# vineetg Oct 2010: ARC GCC 4.4.2 supports section anchors
KBUILD_CFLAGS += $(call cc-ifversion, -gt, 0402, -fsection-anchors)
# Idea is to use -O3 for our builds (Default kernel makefile uses -O2)
# However doing that unconditionally here breaks -Os:
# our -O3 over-rides -Os set by top-level-makefile
#
ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE
KBUILD_CFLAGS += -O3
endif
# vineetg, Oct 2009
# Low level event tracing is sort of crude, as it relies on visualisation
# of log-buffer as a global array in Metaware debugger's "globals" Pane and
# then manually saving it to a file. However w/o -g, debugger can't show the
# non-scalar globals, hence this switch.
# Ideally we must use something like relay FS, but can't, because this tracing
# is generally done in case of weird faults like Machine check, to capture the
# dying kernel's last few events. Thus expecting multiple kernel/user
# daemons to haul data out of kernel in that state would be really stupid !
ifeq ($(CONFIG_ARC_DBG_EVENT_TIMELINE),y)
KBUILD_CFLAGS += -g
endif
MODFLAGS += -mlong-calls
KBUILD_CFLAGS += $(shell if [ $(call cc-version, $(CC)) -gt 0400 ] ; then echo $(call cc-option,-mno-sdata); fi ;)
ifdef CONFIG_ARC_STACK_UNWIND
# KBUILD_CFLAGS += -fasynchronous-unwind-tables
KBUILD_CFLAGS += -gdwarf-2
endif
LINUXINCLUDE += -include ${src}/arch/arc/include/asm/defines.h \
-include ${src}/arch/arc/include/asm/current.h
ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
KBUILD_CFLAGS += -mbig-endian
KBUILD_AFLAGS += -mbig-endian
LINKFLAGS += -EB
LDFLAGS += -EB
endif
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
KBUILD_CFLAGS += -DNONINLINE_USR_CPY -DNONINLINE_MEMSET
endif
KBUILD_CFLAGS += -include asm/current_reg.h -include common/ruby_config.h
#setup AFLAGS from CFLAGS when we are done with all the CFLAGS
KBUILD_AFLAGS += $(KBUILD_CFLAGS)
LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) --print-libgcc-file-name)
TEXTADDR = 0x80002000
export LDFLAGS LIBGCC TEXTADDR GZFLAGS
head-y := arch/arc/proc/$(PROCESSOR)/head.o \
arch/arc/kernel/init_task.o
core-y += arch/arc/kernel/ arch/arc/mm/ \
arch/arc/proc/$(PROCESSOR)/
# vineetg Feb 2010:
# We switched to -mno-long-calls for overall kernel build
# However lib/decompress_inflate.o (.init.text) calls
# zlib_inflate_workspacethere (.text) causing relocation error.
# Thus forcing all exten calls in this file to be long calls
export CFLAGS_decompress_inflate.o = -mlong-calls
core-$(CONFIG_OPROFILE) += arch/arc/oprofile/
drivers-y += arch/arc/drivers/
drivers-$(CONFIG_QUANTENNA_RUBY) += drivers/ruby/
drivers-$(CONFIG_QUANTENNA_TOPAZ) += drivers/topaz/
libs-y += arch/arc/lib/ $(LIBGCC)
#default target for make without any arguements.
KBUILD_IMAGE := Image
all: $(KBUILD_IMAGE)
boot := arch/arc/boot
# Sameer: People update symlinks to machine and proc folders
# here. We wil need it when we'll add more processors
# or boards.
archprepare: maketools arch/arc/include/asm/board
PHONY += maketools FORCE
maketools: include/linux/version.h FORCE
$(Q)$(MAKE) $(build)=arch/$(ARCH)/tools
define arc-create-symlink
@echo 'SYMLINK arch/arc/include/asm/board -> ${src}/arch/arc/include/asm/board-$(PLATFORM)'; \
ln -fsn board-$(PLATFORM) ${src}/arch/arc/include/asm/board;
endef
arch/arc/include/asm/board: FORCE
$(arc-create-symlink)
# Convert bzImage to zImage
bzImage: zImage
zImage Image xipImage bootpImage uImage: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
bootpImage: vmlinux
# $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
CLEAN_FILES += \
arch/$(ARCH)/proc/$(PROCESSOR)/linux.lds \
MRPROPER_FILES += \
include/asm-$(ARCH)/arch \
include/asm-$(ARCH)/proc \
# We use MRPROPER_FILES and CLEAN_FILES now
archclean:
$(Q)$(MAKE) $(clean)=$(boot)