diff options
Diffstat (limited to 'arch/arc/Makefile')
| -rw-r--r-- | arch/arc/Makefile | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/arch/arc/Makefile b/arch/arc/Makefile new file mode 100644 index 000000000..99c55f015 --- /dev/null +++ b/arch/arc/Makefile @@ -0,0 +1,107 @@ +# +# 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. +# + +KBUILD_DEFCONFIG := nsim_hs_defconfig + +cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__ +cflags-$(CONFIG_ISA_ARCOMPACT) += -mA7 +cflags-$(CONFIG_ISA_ARCV2) += -mcpu=hs38 + +ifdef CONFIG_ARC_CURR_IN_REG +# For a global register defintion, make sure it gets passed to every file +# We had a customer reported bug where some code built in kernel was NOT using +# any kernel headers, and missing the r25 global register +# Can't do unconditionally because of recursive include issues +# due to <linux/thread_info.h> +LINUXINCLUDE += -include ${src}/arch/arc/include/asm/current.h +endif + +cflags-y += -fsection-anchors + +cflags-$(CONFIG_ARC_HAS_LLSC) += -mlock +cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape + +ifdef CONFIG_ISA_ARCV2 + +ifndef CONFIG_ARC_HAS_LL64 +cflags-y += -mno-ll64 +endif + +ifndef CONFIG_ARC_HAS_DIV_REM +cflags-y += -mno-div-rem +endif + +endif + +cfi := $(call as-instr,.cfi_startproc\n.cfi_endproc,-DARC_DW2_UNWIND_AS_CFI) +cflags-$(CONFIG_ARC_DW2_UNWIND) += -fasynchronous-unwind-tables $(cfi) + +ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE +# Generic build system uses -O2, we want -O3 +# Note: No need to add to cflags-y as that happens anyways +# +# Disable the false maybe-uninitialized warings gcc spits out at -O3 +ARCH_CFLAGS += -O3 $(call cc-disable-warning,maybe-uninitialized,) +endif + +# small data is default for elf32 tool-chain. If not usable, disable it +# This also allows repurposing GP as scratch reg to gcc reg allocator +disable_small_data := y +cflags-$(disable_small_data) += -mno-sdata -fcall-used-gp + +cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mbig-endian +ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB + +LIBGCC = $(shell $(CC) $(cflags-y) --print-libgcc-file-name) + +# Modules with short calls might break for calls into builtin-kernel +KBUILD_CFLAGS_MODULE += -mlong-calls -mno-millicode + +# Finally dump eveything into kernel build system +KBUILD_CFLAGS += $(cflags-y) +KBUILD_AFLAGS += $(KBUILD_CFLAGS) +KBUILD_LDFLAGS += $(ldflags-y) + +head-y := arch/arc/kernel/head.o + +# See arch/arc/Kbuild for content of core part of the kernel +core-y += arch/arc/ + +# w/o this dtb won't embed into kernel binary +core-y += arch/arc/boot/dts/ + +core-y += arch/arc/plat-sim/ +core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/plat-tb10x/ +core-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/plat-axs10x/ +core-$(CONFIG_ARC_PLAT_EZNPS) += arch/arc/plat-eznps/ +core-$(CONFIG_ARC_SOC_HSDK) += arch/arc/plat-hsdk/ + +ifdef CONFIG_ARC_PLAT_EZNPS +KBUILD_CPPFLAGS += -I$(srctree)/arch/arc/plat-eznps/include +endif + +drivers-$(CONFIG_OPROFILE) += arch/arc/oprofile/ + +libs-y += arch/arc/lib/ $(LIBGCC) + +boot := arch/arc/boot + +boot_targets := uImage uImage.bin uImage.gz uImage.lzma + +PHONY += $(boot_targets) +$(boot_targets): vmlinux + $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ + +%.dtb %.dtb.S %.dtb.o: scripts + $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@ + +dtbs: scripts + $(Q)$(MAKE) $(build)=$(boot)/dts + +archclean: + $(Q)$(MAKE) $(clean)=$(boot) |