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 $(obj)) 37f9328639SMarian Balakowiczelse 38f9328639SMarian Balakowiczobj := 39f9328639SMarian Balakowiczsrc := 40f9328639SMarian Balakowiczendif 41f9328639SMarian Balakowicz 42592c5cabSwdenk# clean the slate ... 43592c5cabSwdenkPLATFORM_RELFLAGS = 44592c5cabSwdenkPLATFORM_CPPFLAGS = 45592c5cabSwdenkPLATFORM_LDFLAGS = 46592c5cabSwdenk 47e2211743Swdenk# 48e2211743Swdenk# When cross-compiling on NetBSD, we have to define __PPC__ or else we 49e2211743Swdenk# will pick up a va_list declaration that is incompatible with the 50e2211743Swdenk# actual argument lists emitted by the compiler. 51e2211743Swdenk# 52e2211743Swdenk# [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3] 53e2211743Swdenk 54e2211743Swdenkifeq ($(ARCH),ppc) 55e2211743Swdenkifeq ($(CROSS_COMPILE),powerpc-netbsd-) 56e2211743SwdenkPLATFORM_CPPFLAGS+= -D__PPC__ 57e2211743Swdenkendif 58e2211743Swdenkifeq ($(CROSS_COMPILE),powerpc-openbsd-) 59e2211743SwdenkPLATFORM_CPPFLAGS+= -D__PPC__ 60e2211743Swdenkendif 61e2211743Swdenkendif 62e2211743Swdenk 63e2211743Swdenkifeq ($(ARCH),arm) 64e2211743Swdenkifeq ($(CROSS_COMPILE),powerpc-netbsd-) 65e2211743SwdenkPLATFORM_CPPFLAGS+= -D__ARM__ 66e2211743Swdenkendif 67e2211743Swdenkifeq ($(CROSS_COMPILE),powerpc-openbsd-) 68e2211743SwdenkPLATFORM_CPPFLAGS+= -D__ARM__ 69e2211743Swdenkendif 70e2211743Swdenkendif 71e2211743Swdenk 72e2211743Swdenkifdef ARCH 73e2211743Swdenksinclude $(TOPDIR)/$(ARCH)_config.mk # include architecture dependend rules 74e2211743Swdenkendif 75e2211743Swdenkifdef CPU 76e2211743Swdenksinclude $(TOPDIR)/cpu/$(CPU)/config.mk # include CPU specific rules 77e2211743Swdenkendif 781d9f4105Swdenkifdef SOC 791d9f4105Swdenksinclude $(TOPDIR)/cpu/$(CPU)/$(SOC)/config.mk # include SoC specific rules 801d9f4105Swdenkendif 81e2211743Swdenkifdef VENDOR 82e2211743SwdenkBOARDDIR = $(VENDOR)/$(BOARD) 83e2211743Swdenkelse 84e2211743SwdenkBOARDDIR = $(BOARD) 85e2211743Swdenkendif 86e2211743Swdenkifdef BOARD 87e2211743Swdenksinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules 88e2211743Swdenkendif 89e2211743Swdenk 902f155f6cSGrant Likely# Load generated board configuration 912f155f6cSGrant Likelysinclude $(OBJTREE)/include/autoconf.mk 922f155f6cSGrant Likely 93e2211743Swdenk######################################################################### 94e2211743Swdenk 95e2211743SwdenkCONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 96e2211743Swdenk else if [ -x /bin/bash ]; then echo /bin/bash; \ 97e2211743Swdenk else echo sh; fi ; fi) 98e2211743Swdenk 99e2211743Swdenkifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc) 100e2211743SwdenkHOSTCC = cc 101e2211743Swdenkelse 102e2211743SwdenkHOSTCC = gcc 103e2211743Swdenkendif 104e2211743SwdenkHOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer 105e2211743SwdenkHOSTSTRIP = strip 106e2211743Swdenk 107e2211743Swdenk######################################################################### 1081820d4c7SWolfgang Denk# 1091820d4c7SWolfgang Denk# Option checker (courtesy linux kernel) to ensure 1101820d4c7SWolfgang Denk# only supported compiler options are used 1111820d4c7SWolfgang Denk# 1121820d4c7SWolfgang Denkcc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \ 1131820d4c7SWolfgang Denk > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;) 114e2211743Swdenk 115e2211743Swdenk# 116e2211743Swdenk# Include the make variables (CC, etc...) 117e2211743Swdenk# 118e2211743SwdenkAS = $(CROSS_COMPILE)as 119e2211743SwdenkLD = $(CROSS_COMPILE)ld 120e2211743SwdenkCC = $(CROSS_COMPILE)gcc 121e2211743SwdenkCPP = $(CC) -E 122e2211743SwdenkAR = $(CROSS_COMPILE)ar 123e2211743SwdenkNM = $(CROSS_COMPILE)nm 124*94a91e24SMike FrysingerLDR = $(CROSS_COMPILE)ldr 125e2211743SwdenkSTRIP = $(CROSS_COMPILE)strip 126e2211743SwdenkOBJCOPY = $(CROSS_COMPILE)objcopy 127e2211743SwdenkOBJDUMP = $(CROSS_COMPILE)objdump 128e2211743SwdenkRANLIB = $(CROSS_COMPILE)RANLIB 129e2211743Swdenk 1301954be6eSWolfgang Denkifneq (,$(findstring s,$(MAKEFLAGS))) 1311954be6eSWolfgang DenkARFLAGS = cr 1321954be6eSWolfgang Denkelse 1332b208f53SWolfgang DenkARFLAGS = crv 1341954be6eSWolfgang Denkendif 135e2211743SwdenkRELFLAGS= $(PLATFORM_RELFLAGS) 136e2211743SwdenkDBGFLAGS= -g # -DDEBUG 137e2211743SwdenkOPTFLAGS= -Os #-fomit-frame-pointer 1386dd652faSwdenkifndef LDSCRIPT 1394aeb251fSwdenk#LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug 140887e2ec9SStefan Roeseifeq ($(CONFIG_NAND_U_BOOT),y) 141887e2ec9SStefan RoeseLDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds 142887e2ec9SStefan Roeseelse 143e2211743SwdenkLDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds 1446dd652faSwdenkendif 145887e2ec9SStefan Roeseendif 1466dd652faSwdenkOBJCFLAGS += --gap-fill=0xff 147e2211743Swdenk 148b783edaeSwdenkgccincdir := $(shell $(CC) -print-file-name=include) 149b783edaeSwdenk 150e2211743SwdenkCPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \ 151e2211743Swdenk -D__KERNEL__ -DTEXT_BASE=$(TEXT_BASE) \ 152f9328639SMarian Balakowicz 153f9328639SMarian Balakowiczifneq ($(OBJTREE),$(SRCTREE)) 154f9328639SMarian BalakowiczCPPFLAGS += -I$(OBJTREE)/include2 -I$(OBJTREE)/include 155f9328639SMarian Balakowiczendif 156f9328639SMarian Balakowicz 157f9328639SMarian BalakowiczCPPFLAGS += -I$(TOPDIR)/include 158f9328639SMarian BalakowiczCPPFLAGS += -fno-builtin -ffreestanding -nostdinc \ 159f9328639SMarian Balakowicz -isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS) 160e2211743Swdenk 161e2211743Swdenkifdef BUILD_TAG 162e2211743SwdenkCFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \ 163e2211743Swdenk -DBUILD_TAG='"$(BUILD_TAG)"' 164e2211743Swdenkelse 165e2211743SwdenkCFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes 166e2211743Swdenkendif 167e2211743Swdenk 168c40b2956Swdenk# avoid trigraph warnings while parsing pci.h (produced by NIOS gcc-2.9) 169c40b2956Swdenk# this option have to be placed behind -Wall -- that's why it is here 170c40b2956Swdenkifeq ($(ARCH),nios) 171c40b2956Swdenkifeq ($(findstring 2.9,$(shell $(CC) --version)),2.9) 172e4cc71aaSwdenkCFLAGS := $(CPPFLAGS) -Wall -Wno-trigraphs 173c40b2956Swdenkendif 174c40b2956Swdenkendif 175c40b2956Swdenk 176e11887a7SHaavard Skinnemoen# $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 177e11887a7SHaavard Skinnemoen# option to the assembler. 178e11887a7SHaavard SkinnemoenAFLAGS_DEBUG := 179b62fa913SMarian Balakowicz 180483a0cf8SMarian Balakowicz# turn jbsr into jsr for m68k 181483a0cf8SMarian Balakowiczifeq ($(ARCH),m68k) 182483a0cf8SMarian Balakowiczifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 183483a0cf8SMarian BalakowiczAFLAGS_DEBUG := -Wa,-gstabs,-S 184483a0cf8SMarian Balakowiczendif 185483a0cf8SMarian Balakowiczendif 186b62fa913SMarian Balakowicz 187e2211743SwdenkAFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS) 188e2211743Swdenk 1897f6c2cbcSwdenkLDFLAGS += -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS) 190e2211743Swdenk 191e2211743Swdenk# Location of a usable BFD library, where we define "usable" as 192e2211743Swdenk# "built for ${HOST}, supports ${TARGET}". Sensible values are 193e2211743Swdenk# - When cross-compiling: the root of the cross-environment 194e2211743Swdenk# - Linux/ppc (native): /usr 195e2211743Swdenk# - NetBSD/ppc (native): you lose ... (must extract these from the 196e2211743Swdenk# binutils build directory, plus the native and U-Boot include 197e2211743Swdenk# files don't like each other) 198e2211743Swdenk# 199e2211743Swdenk# So far, this is used only by tools/gdb/Makefile. 200e2211743Swdenk 201e2211743Swdenkifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc) 202e2211743SwdenkBFD_ROOT_DIR = /usr/local/tools 203e2211743Swdenkelse 204ea909b76Swdenkifeq ($(HOSTARCH),$(ARCH)) 205ea909b76Swdenk# native 206ea909b76SwdenkBFD_ROOT_DIR = /usr 207ea909b76Swdenkelse 208e2211743Swdenk#BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386 209e2211743Swdenk#BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386 210e2211743SwdenkBFD_ROOT_DIR = /opt/powerpc 211e2211743Swdenkendif 212ea909b76Swdenkendif 213e2211743Swdenk 214f046ccd1SEran Libertyifeq ($(PCI_CLOCK),PCI_66M) 215f046ccd1SEran LibertyCFLAGS := $(CFLAGS) -DPCI_66M 216f046ccd1SEran Libertyendif 217f046ccd1SEran Liberty 218e2211743Swdenk######################################################################### 219e2211743Swdenk 220e2211743Swdenkexport CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \ 221e2211743Swdenk AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \ 222e2211743Swdenk MAKE 223e2211743Swdenkexport TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS 224e2211743Swdenk 225e2211743Swdenk######################################################################### 226e2211743Swdenk 227f9328639SMarian Balakowiczifndef REMOTE_BUILD 228f9328639SMarian Balakowicz 229e2211743Swdenk%.s: %.S 230f9328639SMarian Balakowicz $(CPP) $(AFLAGS) -o $@ $< 231e2211743Swdenk%.o: %.S 232f9328639SMarian Balakowicz $(CC) $(AFLAGS) -c -o $@ $< 233e2211743Swdenk%.o: %.c 234e2211743Swdenk $(CC) $(CFLAGS) -c -o $@ $< 235e2211743Swdenk 236f9328639SMarian Balakowiczelse 237f9328639SMarian Balakowicz 238f9328639SMarian Balakowicz$(obj)%.s: %.S 239f9328639SMarian Balakowicz $(CPP) $(AFLAGS) -o $@ $< 240f9328639SMarian Balakowicz$(obj)%.o: %.S 241f9328639SMarian Balakowicz $(CC) $(AFLAGS) -c -o $@ $< 242f9328639SMarian Balakowicz$(obj)%.o: %.c 243f9328639SMarian Balakowicz $(CC) $(CFLAGS) -c -o $@ $< 244f9328639SMarian Balakowiczendif 245f9328639SMarian Balakowicz 246e2211743Swdenk######################################################################### 247