1e2211743Swdenk# 2f9328639SMarian Balakowicz# (C) Copyright 2000-2006 3e2211743Swdenk# Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4e2211743Swdenk# 5e2211743Swdenk# See file CREDITS for list of people who contributed to this 6e2211743Swdenk# project. 7e2211743Swdenk# 8e2211743Swdenk# This program is free software; you can redistribute it and/or 9e2211743Swdenk# modify it under the terms of the GNU General Public License as 10e2211743Swdenk# published by the Free Software Foundation; either version 2 of 11e2211743Swdenk# the License, or (at your option) any later version. 12e2211743Swdenk# 13e2211743Swdenk# This program is distributed in the hope that it will be useful, 14e2211743Swdenk# but WITHOUT ANY WARRANTY; without even the implied warranty of 15e2211743Swdenk# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16e2211743Swdenk# GNU General Public License for more details. 17e2211743Swdenk# 18e2211743Swdenk# You should have received a copy of the GNU General Public License 19e2211743Swdenk# along with this program; if not, write to the Free Software 20e2211743Swdenk# Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21e2211743Swdenk# MA 02111-1307 USA 22e2211743Swdenk# 23e2211743Swdenk 24e2211743Swdenk######################################################################### 25e2211743Swdenk 26f9328639SMarian Balakowiczifneq ($(OBJTREE),$(SRCTREE)) 27f9328639SMarian Balakowiczifeq ($(CURDIR),$(SRCTREE)) 28f9328639SMarian Balakowiczdir := 29f9328639SMarian Balakowiczelse 30f9328639SMarian Balakowiczdir := $(subst $(SRCTREE)/,,$(CURDIR)) 31f9328639SMarian Balakowiczendif 32f9328639SMarian Balakowicz 33f9328639SMarian Balakowiczobj := $(if $(dir),$(OBJTREE)/$(dir)/,$(OBJTREE)/) 34f9328639SMarian Balakowiczsrc := $(if $(dir),$(SRCTREE)/$(dir)/,$(SRCTREE)/) 35f9328639SMarian Balakowicz 36f9328639SMarian Balakowicz$(shell mkdir -p $(obj)) 37f9328639SMarian Balakowiczelse 38f9328639SMarian Balakowiczobj := 39f9328639SMarian Balakowiczsrc := 40f9328639SMarian Balakowiczendif 41f9328639SMarian Balakowicz 42592c5cabSwdenk# clean the slate ... 43592c5cabSwdenkPLATFORM_RELFLAGS = 44592c5cabSwdenkPLATFORM_CPPFLAGS = 45592c5cabSwdenkPLATFORM_LDFLAGS = 46592c5cabSwdenk 47e2211743Swdenk######################################################################### 48e2211743Swdenk 494cda4378SMike Frysingerifeq ($(HOSTOS),darwin) 50e2211743SwdenkHOSTCC = cc 51e2211743Swdenkelse 52e2211743SwdenkHOSTCC = gcc 53e2211743Swdenkendif 54e2211743SwdenkHOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer 55e2211743SwdenkHOSTSTRIP = strip 56e2211743Swdenk 57e2211743Swdenk######################################################################### 581820d4c7SWolfgang Denk# 591820d4c7SWolfgang Denk# Option checker (courtesy linux kernel) to ensure 601820d4c7SWolfgang Denk# only supported compiler options are used 611820d4c7SWolfgang Denk# 621820d4c7SWolfgang Denkcc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \ 631820d4c7SWolfgang Denk > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;) 64e2211743Swdenk 65e2211743Swdenk# 66e2211743Swdenk# Include the make variables (CC, etc...) 67e2211743Swdenk# 68e2211743SwdenkAS = $(CROSS_COMPILE)as 69e2211743SwdenkLD = $(CROSS_COMPILE)ld 70e2211743SwdenkCC = $(CROSS_COMPILE)gcc 71e2211743SwdenkCPP = $(CC) -E 72e2211743SwdenkAR = $(CROSS_COMPILE)ar 73e2211743SwdenkNM = $(CROSS_COMPILE)nm 7494a91e24SMike FrysingerLDR = $(CROSS_COMPILE)ldr 75e2211743SwdenkSTRIP = $(CROSS_COMPILE)strip 76e2211743SwdenkOBJCOPY = $(CROSS_COMPILE)objcopy 77e2211743SwdenkOBJDUMP = $(CROSS_COMPILE)objdump 78e2211743SwdenkRANLIB = $(CROSS_COMPILE)RANLIB 79e2211743Swdenk 80c4e5f52aSWolfgang Denk######################################################################### 81c4e5f52aSWolfgang Denk 82c4e5f52aSWolfgang Denk# Load generated board configuration 83c4e5f52aSWolfgang Denksinclude $(OBJTREE)/include/autoconf.mk 84c4e5f52aSWolfgang Denk 85c4e5f52aSWolfgang Denkifdef ARCH 86b220c64dSPeter Tysersinclude $(TOPDIR)/lib_$(ARCH)/config.mk # include architecture dependend rules 87c4e5f52aSWolfgang Denkendif 88c4e5f52aSWolfgang Denkifdef CPU 89c4e5f52aSWolfgang Denksinclude $(TOPDIR)/cpu/$(CPU)/config.mk # include CPU specific rules 90c4e5f52aSWolfgang Denkendif 91c4e5f52aSWolfgang Denkifdef SOC 92c4e5f52aSWolfgang Denksinclude $(TOPDIR)/cpu/$(CPU)/$(SOC)/config.mk # include SoC specific rules 93c4e5f52aSWolfgang Denkendif 94c4e5f52aSWolfgang Denkifdef VENDOR 95c4e5f52aSWolfgang DenkBOARDDIR = $(VENDOR)/$(BOARD) 96c4e5f52aSWolfgang Denkelse 97c4e5f52aSWolfgang DenkBOARDDIR = $(BOARD) 98c4e5f52aSWolfgang Denkendif 99c4e5f52aSWolfgang Denkifdef BOARD 100c4e5f52aSWolfgang Denksinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules 101c4e5f52aSWolfgang Denkendif 102c4e5f52aSWolfgang Denk 103c4e5f52aSWolfgang Denk######################################################################### 104c4e5f52aSWolfgang Denk 1051954be6eSWolfgang Denkifneq (,$(findstring s,$(MAKEFLAGS))) 1061954be6eSWolfgang DenkARFLAGS = cr 1071954be6eSWolfgang Denkelse 1082b208f53SWolfgang DenkARFLAGS = crv 1091954be6eSWolfgang Denkendif 110e2211743SwdenkRELFLAGS= $(PLATFORM_RELFLAGS) 111e2211743SwdenkDBGFLAGS= -g # -DDEBUG 112e2211743SwdenkOPTFLAGS= -Os #-fomit-frame-pointer 1136dd652faSwdenkifndef LDSCRIPT 1144aeb251fSwdenk#LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug 115887e2ec9SStefan Roeseifeq ($(CONFIG_NAND_U_BOOT),y) 116887e2ec9SStefan RoeseLDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds 117887e2ec9SStefan Roeseelse 118e2211743SwdenkLDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds 1196dd652faSwdenkendif 120887e2ec9SStefan Roeseendif 1216dd652faSwdenkOBJCFLAGS += --gap-fill=0xff 122e2211743Swdenk 123b783edaeSwdenkgccincdir := $(shell $(CC) -print-file-name=include) 124b783edaeSwdenk 125e2211743SwdenkCPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \ 126161b2af4SMike Frysinger -D__KERNEL__ 127161b2af4SMike Frysingerifneq ($(TEXT_BASE),) 128161b2af4SMike FrysingerCPPFLAGS += -DTEXT_BASE=$(TEXT_BASE) 129161b2af4SMike Frysingerendif 130f9328639SMarian Balakowicz 131*6c97a20dSKumar Galaifneq ($(RESET_VECTOR_ADDRESS),) 132*6c97a20dSKumar GalaCPPFLAGS += -DRESET_VECTOR_ADDRESS=$(RESET_VECTOR_ADDRESS) 133*6c97a20dSKumar Galaendif 134*6c97a20dSKumar Gala 135f9328639SMarian Balakowiczifneq ($(OBJTREE),$(SRCTREE)) 136f9328639SMarian BalakowiczCPPFLAGS += -I$(OBJTREE)/include2 -I$(OBJTREE)/include 137f9328639SMarian Balakowiczendif 138f9328639SMarian Balakowicz 139f9328639SMarian BalakowiczCPPFLAGS += -I$(TOPDIR)/include 140f9328639SMarian BalakowiczCPPFLAGS += -fno-builtin -ffreestanding -nostdinc \ 141f9328639SMarian Balakowicz -isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS) 142e2211743Swdenk 143e2211743Swdenkifdef BUILD_TAG 144e2211743SwdenkCFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \ 145e2211743Swdenk -DBUILD_TAG='"$(BUILD_TAG)"' 146e2211743Swdenkelse 147e2211743SwdenkCFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes 148e2211743Swdenkendif 149e2211743Swdenk 15028eab0d7SHaavard SkinnemoenCFLAGS += $(call cc-option,-fno-stack-protector) 15128eab0d7SHaavard Skinnemoen 152c40b2956Swdenk# avoid trigraph warnings while parsing pci.h (produced by NIOS gcc-2.9) 153c40b2956Swdenk# this option have to be placed behind -Wall -- that's why it is here 154c40b2956Swdenkifeq ($(ARCH),nios) 155c40b2956Swdenkifeq ($(findstring 2.9,$(shell $(CC) --version)),2.9) 156e4cc71aaSwdenkCFLAGS := $(CPPFLAGS) -Wall -Wno-trigraphs 157c40b2956Swdenkendif 158c40b2956Swdenkendif 159c40b2956Swdenk 160e11887a7SHaavard Skinnemoen# $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 161e11887a7SHaavard Skinnemoen# option to the assembler. 162e11887a7SHaavard SkinnemoenAFLAGS_DEBUG := 163b62fa913SMarian Balakowicz 164483a0cf8SMarian Balakowicz# turn jbsr into jsr for m68k 165483a0cf8SMarian Balakowiczifeq ($(ARCH),m68k) 166483a0cf8SMarian Balakowiczifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 167483a0cf8SMarian BalakowiczAFLAGS_DEBUG := -Wa,-gstabs,-S 168483a0cf8SMarian Balakowiczendif 169483a0cf8SMarian Balakowiczendif 170b62fa913SMarian Balakowicz 171e2211743SwdenkAFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS) 172e2211743Swdenk 1731aada9cdSWolfgang DenkLDFLAGS += -Bstatic -T $(obj)u-boot.lds $(PLATFORM_LDFLAGS) 174161b2af4SMike Frysingerifneq ($(TEXT_BASE),) 175161b2af4SMike FrysingerLDFLAGS += -Ttext $(TEXT_BASE) 176161b2af4SMike Frysingerendif 177e2211743Swdenk 178e2211743Swdenk# Location of a usable BFD library, where we define "usable" as 179e2211743Swdenk# "built for ${HOST}, supports ${TARGET}". Sensible values are 180e2211743Swdenk# - When cross-compiling: the root of the cross-environment 181e2211743Swdenk# - Linux/ppc (native): /usr 182e2211743Swdenk# - NetBSD/ppc (native): you lose ... (must extract these from the 183e2211743Swdenk# binutils build directory, plus the native and U-Boot include 184e2211743Swdenk# files don't like each other) 185e2211743Swdenk# 186e2211743Swdenk# So far, this is used only by tools/gdb/Makefile. 187e2211743Swdenk 1884cda4378SMike Frysingerifeq ($(HOSTOS),darwin) 189e2211743SwdenkBFD_ROOT_DIR = /usr/local/tools 190e2211743Swdenkelse 191ea909b76Swdenkifeq ($(HOSTARCH),$(ARCH)) 192ea909b76Swdenk# native 193ea909b76SwdenkBFD_ROOT_DIR = /usr 194ea909b76Swdenkelse 195e2211743Swdenk#BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386 196e2211743Swdenk#BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386 197e2211743SwdenkBFD_ROOT_DIR = /opt/powerpc 198e2211743Swdenkendif 199ea909b76Swdenkendif 200e2211743Swdenk 201e2211743Swdenk######################################################################### 202e2211743Swdenk 203cff80f2cSShinya Kuribayashiexport HOSTCC HOSTCFLAGS CROSS_COMPILE \ 204434c51a5SPeter Tyser AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP MAKE 205e2211743Swdenkexport TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS 206e2211743Swdenk 207e2211743Swdenk######################################################################### 208e2211743Swdenk 2095ec5529bSMike Frysinger# Allow boards to use custom optimize flags on a per dir/file basis 2105ec5529bSMike FrysingerBCURDIR := $(notdir $(CURDIR)) 211f9328639SMarian Balakowicz$(obj)%.s: %.S 2125ec5529bSMike Frysinger $(CPP) $(AFLAGS) $(AFLAGS_$(@F)) $(AFLAGS_$(BCURDIR)) -o $@ $< 213f9328639SMarian Balakowicz$(obj)%.o: %.S 2145ec5529bSMike Frysinger $(CC) $(AFLAGS) $(AFLAGS_$(@F)) $(AFLAGS_$(BCURDIR)) -o $@ $< -c 215f9328639SMarian Balakowicz$(obj)%.o: %.c 2165ec5529bSMike Frysinger $(CC) $(CFLAGS) $(CFLAGS_$(@F)) $(CFLAGS_$(BCURDIR)) -o $@ $< -c 21731f30c9eSMike Frysinger$(obj)%.i: %.c 21831f30c9eSMike Frysinger $(CPP) $(CFLAGS) $(CFLAGS_$(@F)) $(CFLAGS_$(BCURDIR)) -o $@ $< -c 21931f30c9eSMike Frysinger$(obj)%.s: %.c 22031f30c9eSMike Frysinger $(CC) $(CFLAGS) $(CFLAGS_$(@F)) $(CFLAGS_$(BCURDIR)) -o $@ $< -c -S 221f9328639SMarian Balakowicz 222e2211743Swdenk######################################################################### 223