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# This file is included by the global makefile so that you can add your own 7# architecture-specific flags and dependencies. Remember to do have actions 8# for "archclean" and "archdep" for cleaning up and making dependencies for 9# this architecture 10 11# If building with TILERA_ROOT set (i.e. using the Tilera Multicore 12# Development Environment) we can set CROSS_COMPILE based on that. 13# If we're not cross-compiling, make sure we're on the right architecture. 14# Only bother to test for a few common targets, to avoid useless errors. 15ifeq ($(CROSS_COMPILE),) 16 ifdef TILERA_ROOT 17 CROSS_COMPILE := $(TILERA_ROOT)/bin/tile- 18 else 19 goals := $(if $(MAKECMDGOALS), $(MAKECMDGOALS), all) 20 ifneq ($(strip $(filter vmlinux modules all,$(goals))),) 21 HOST_ARCH := $(shell uname -m) 22 ifneq ($(HOST_ARCH),$(ARCH)) 23$(error Set TILERA_ROOT or CROSS_COMPILE when building $(ARCH) on $(HOST_ARCH)) 24 endif 25 endif 26 endif 27endif 28 29# The tile compiler may emit .eh_frame information for backtracing. 30# In kernel modules, this causes load failures due to unsupported relocations. 31KBUILD_CFLAGS += -fno-asynchronous-unwind-tables 32 33ifneq ($(CONFIG_DEBUG_EXTRA_FLAGS),"") 34KBUILD_CFLAGS += $(CONFIG_DEBUG_EXTRA_FLAGS) 35endif 36 37LIBGCC_PATH := \ 38 $(shell $(CC) $(KBUILD_CFLAGS) $(KCFLAGS) -print-libgcc-file-name) 39 40# Provide the path to use for "make defconfig". 41KBUILD_DEFCONFIG := $(ARCH)_defconfig 42 43# Used as a file extension when useful, e.g. head_$(BITS).o 44# Not needed for (e.g.) "$(CC) -m32" since the compiler automatically 45# uses the right default anyway. 46export BITS 47ifeq ($(CONFIG_TILEGX),y) 48BITS := 64 49else 50BITS := 32 51endif 52 53head-y := arch/tile/kernel/head_$(BITS).o 54 55libs-y += arch/tile/lib/ 56libs-y += $(LIBGCC_PATH) 57 58# See arch/tile/Kbuild for content of core part of the kernel 59core-y += arch/tile/ 60 61ifdef TILERA_ROOT 62INSTALL_PATH ?= $(TILERA_ROOT)/tile/boot 63endif 64 65install: 66 install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE) 67 install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE) 68 install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE) 69 70define archhelp 71 echo ' install - install kernel into $(INSTALL_PATH)' 72endef 73