1# 2# This file is subject to the terms and conditions of the GNU General Public 3# License. See the file "COPYING" in the main directory of this archive 4# for more details. 5# 6# Copyright (C) 2001 - 2005 Tensilica Inc. 7# Copyright (C) 2014 Cadence Design Systems Inc. 8# 9# This file is included by the global makefile so that you can add your own 10# architecture-specific flags and dependencies. 11 12# Core configuration. 13# (Use VAR=<xtensa_config> to use another default compiler.) 14 15variant-y := $(CONFIG_XTENSA_VARIANT_NAME) 16 17VARIANT = $(variant-y) 18 19ifneq ($(VARIANT),) 20 ifdef cross_compiling 21 ifndef CROSS_COMPILE 22 CROSS_COMPILE = xtensa_$(VARIANT)- 23 endif 24 endif 25endif 26 27# Platform configuration 28 29platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000 30platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss 31platform-$(CONFIG_XTENSA_PLATFORM_XTFPGA) := xtfpga 32 33# temporarily until string.h is fixed 34KBUILD_CFLAGS += -ffreestanding -D__linux__ 35KBUILD_CFLAGS += -pipe -mlongcalls -mtext-section-literals 36KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,) 37KBUILD_CFLAGS += $(call cc-option,-mno-serialize-volatile,) 38 39KBUILD_AFLAGS += -mlongcalls -mtext-section-literals 40 41ifneq ($(CONFIG_LD_NO_RELAX),) 42KBUILD_LDFLAGS := --no-relax 43endif 44 45CHECKFLAGS += -D$(if $(CONFIG_CPU_BIG_ENDIAN),__XTENSA_EB__,__XTENSA_EL__) 46 47vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y)) 48plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y)) 49 50KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs)) 51 52KBUILD_DEFCONFIG := iss_defconfig 53 54# Find libgcc.a 55 56LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) 57 58head-y := arch/xtensa/kernel/head.o 59 60libs-y += arch/xtensa/lib/ $(LIBGCC) 61 62boot := arch/xtensa/boot 63 64all Image zImage uImage xipImage: vmlinux 65 $(Q)$(MAKE) $(build)=$(boot) $@ 66 67archheaders: 68 $(Q)$(MAKE) $(build)=arch/xtensa/kernel/syscalls all 69 70define archhelp 71 @echo '* Image - Kernel ELF image with reset vector' 72 @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)' 73 @echo '* uImage - U-Boot wrapped image' 74 @echo ' xipImage - XIP image' 75endef 76