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 Balakowiczifeq ($(CURDIR),$(SRCTREE)) 27f9328639SMarian Balakowiczdir := 28f9328639SMarian Balakowiczelse 29f9328639SMarian Balakowiczdir := $(subst $(SRCTREE)/,,$(CURDIR)) 30f9328639SMarian Balakowiczendif 31f9328639SMarian Balakowicz 32c8f9c302SDaniel Schwierzeckifneq ($(OBJTREE),$(SRCTREE)) 33c8f9c302SDaniel Schwierzeck# Create object files for SPL in a separate directory 34c8f9c302SDaniel Schwierzeckifeq ($(CONFIG_SPL_BUILD),y) 35c8f9c302SDaniel Schwierzeckobj := $(if $(dir),$(SPLTREE)/$(dir)/,$(SPLTREE)/) 36c8f9c302SDaniel Schwierzeckelse 37f9328639SMarian Balakowiczobj := $(if $(dir),$(OBJTREE)/$(dir)/,$(OBJTREE)/) 38c8f9c302SDaniel Schwierzeckendif 39f9328639SMarian Balakowiczsrc := $(if $(dir),$(SRCTREE)/$(dir)/,$(SRCTREE)/) 40f9328639SMarian Balakowicz 41f9328639SMarian Balakowicz$(shell mkdir -p $(obj)) 42f9328639SMarian Balakowiczelse 43c8f9c302SDaniel Schwierzeck# Create object files for SPL in a separate directory 44c8f9c302SDaniel Schwierzeckifeq ($(CONFIG_SPL_BUILD),y) 45c8f9c302SDaniel Schwierzeckobj := $(if $(dir),$(SPLTREE)/$(dir)/,$(SPLTREE)/) 46c8f9c302SDaniel Schwierzeck 47c8f9c302SDaniel Schwierzeck$(shell mkdir -p $(obj)) 48c8f9c302SDaniel Schwierzeckelse 49f9328639SMarian Balakowiczobj := 50c8f9c302SDaniel Schwierzeckendif 51f9328639SMarian Balakowiczsrc := 52f9328639SMarian Balakowiczendif 53f9328639SMarian Balakowicz 54592c5cabSwdenk# clean the slate ... 55592c5cabSwdenkPLATFORM_RELFLAGS = 56592c5cabSwdenkPLATFORM_CPPFLAGS = 57592c5cabSwdenkPLATFORM_LDFLAGS = 58592c5cabSwdenk 59e2211743Swdenk######################################################################### 60e2211743Swdenk 61d984fed0SScott WoodHOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \ 62d984fed0SScott Wood $(HOSTCPPFLAGS) 63d984fed0SScott WoodHOSTSTRIP = strip 64d984fed0SScott Wood 65d984fed0SScott Wood# 66d984fed0SScott Wood# Mac OS X / Darwin's C preprocessor is Apple specific. It 67d984fed0SScott Wood# generates numerous errors and warnings. We want to bypass it 68d984fed0SScott Wood# and use GNU C's cpp. To do this we pass the -traditional-cpp 69d984fed0SScott Wood# option to the compiler. Note that the -traditional-cpp flag 70d984fed0SScott Wood# DOES NOT have the same semantics as GNU C's flag, all it does 71d984fed0SScott Wood# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 72d984fed0SScott Wood# 73d984fed0SScott Wood# Apple's linker is similar, thanks to the new 2 stage linking 74d984fed0SScott Wood# multiple symbol definitions are treated as errors, hence the 75d984fed0SScott Wood# -multiply_defined suppress option to turn off this error. 76d984fed0SScott Wood# 77d984fed0SScott Wood 784cda4378SMike Frysingerifeq ($(HOSTOS),darwin) 79c7da8c19SAndreas Biessmann# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 80c7da8c19SAndreas BiessmannDARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 81c7da8c19SAndreas BiessmannDARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 82c7da8c19SAndreas Biessmann 83f534c7cdSMike Frysingeros_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 84f534c7cdSMike Frysinger $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 85c7da8c19SAndreas Biessmann 86c7da8c19SAndreas Biessmann# Snow Leopards build environment has no longer restrictions as described above 87f534c7cdSMike FrysingerHOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 88f534c7cdSMike FrysingerHOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 89f534c7cdSMike FrysingerHOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 90e2211743Swdenkelse 91e2211743SwdenkHOSTCC = gcc 92e2211743Swdenkendif 93d984fed0SScott Wood 94d984fed0SScott Woodifeq ($(HOSTOS),cygwin) 95d984fed0SScott WoodHOSTCFLAGS += -ansi 96d984fed0SScott Woodendif 97d984fed0SScott Wood 98d984fed0SScott Wood# We build some files with extra pedantic flags to try to minimize things 99d984fed0SScott Wood# that won't build on some weird host compiler -- though there are lots of 100d984fed0SScott Wood# exceptions for files that aren't complaint. 101d984fed0SScott Wood 102d984fed0SScott WoodHOSTCFLAGS_NOPED = $(filter-out -pedantic,$(HOSTCFLAGS)) 103d984fed0SScott WoodHOSTCFLAGS += -pedantic 104e2211743Swdenk 105e2211743Swdenk######################################################################### 1061820d4c7SWolfgang Denk# 1071820d4c7SWolfgang Denk# Option checker (courtesy linux kernel) to ensure 1081820d4c7SWolfgang Denk# only supported compiler options are used 1091820d4c7SWolfgang Denk# 1101820d4c7SWolfgang Denkcc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \ 1111820d4c7SWolfgang Denk > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;) 112e2211743Swdenk 113e2211743Swdenk# 114e2211743Swdenk# Include the make variables (CC, etc...) 115e2211743Swdenk# 116e2211743SwdenkAS = $(CROSS_COMPILE)as 117e2211743SwdenkLD = $(CROSS_COMPILE)ld 118e2211743SwdenkCC = $(CROSS_COMPILE)gcc 119e2211743SwdenkCPP = $(CC) -E 120e2211743SwdenkAR = $(CROSS_COMPILE)ar 121e2211743SwdenkNM = $(CROSS_COMPILE)nm 12294a91e24SMike FrysingerLDR = $(CROSS_COMPILE)ldr 123e2211743SwdenkSTRIP = $(CROSS_COMPILE)strip 124e2211743SwdenkOBJCOPY = $(CROSS_COMPILE)objcopy 125e2211743SwdenkOBJDUMP = $(CROSS_COMPILE)objdump 126e2211743SwdenkRANLIB = $(CROSS_COMPILE)RANLIB 127e2211743Swdenk 128c4e5f52aSWolfgang Denk######################################################################### 129c4e5f52aSWolfgang Denk 130c4e5f52aSWolfgang Denk# Load generated board configuration 131c4e5f52aSWolfgang Denksinclude $(OBJTREE)/include/autoconf.mk 1325e987ddfSJoakim Tjernlundsinclude $(OBJTREE)/include/config.mk 133c4e5f52aSWolfgang Denk 13403b7004dSPeter Tyser# Some architecture config.mk files need to know what CPUDIR is set to, 13503b7004dSPeter Tyser# so calculate CPUDIR before including ARCH/SOC/CPU config.mk files. 1368d1f2682SPeter Tyser# Check if arch/$ARCH/cpu/$CPU exists, otherwise assume arch/$ARCH/cpu contains 1378d1f2682SPeter Tyser# CPU-specific code. 1388d1f2682SPeter TyserCPUDIR=arch/$(ARCH)/cpu/$(CPU) 1398d1f2682SPeter Tyserifneq ($(SRCTREE)/$(CPUDIR),$(wildcard $(SRCTREE)/$(CPUDIR))) 1408d1f2682SPeter TyserCPUDIR=arch/$(ARCH)/cpu 1418d1f2682SPeter Tyserendif 14203b7004dSPeter Tyser 143ea0364f1SPeter Tysersinclude $(TOPDIR)/arch/$(ARCH)/config.mk # include architecture dependend rules 14403b7004dSPeter Tysersinclude $(TOPDIR)/$(CPUDIR)/config.mk # include CPU specific rules 14503b7004dSPeter Tyser 146c4e5f52aSWolfgang Denkifdef SOC 14703b7004dSPeter Tysersinclude $(TOPDIR)/$(CPUDIR)/$(SOC)/config.mk # include SoC specific rules 148c4e5f52aSWolfgang Denkendif 149c4e5f52aSWolfgang Denkifdef VENDOR 150c4e5f52aSWolfgang DenkBOARDDIR = $(VENDOR)/$(BOARD) 151c4e5f52aSWolfgang Denkelse 152c4e5f52aSWolfgang DenkBOARDDIR = $(BOARD) 153c4e5f52aSWolfgang Denkendif 154c4e5f52aSWolfgang Denkifdef BOARD 155c4e5f52aSWolfgang Denksinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules 156c4e5f52aSWolfgang Denkendif 157c4e5f52aSWolfgang Denk 158c4e5f52aSWolfgang Denk######################################################################### 159c4e5f52aSWolfgang Denk 1601954be6eSWolfgang Denkifneq (,$(findstring s,$(MAKEFLAGS))) 1611954be6eSWolfgang DenkARFLAGS = cr 1621954be6eSWolfgang Denkelse 1632b208f53SWolfgang DenkARFLAGS = crv 1641954be6eSWolfgang Denkendif 165e2211743SwdenkRELFLAGS= $(PLATFORM_RELFLAGS) 166e2211743SwdenkDBGFLAGS= -g # -DDEBUG 167e2211743SwdenkOPTFLAGS= -Os #-fomit-frame-pointer 16883b7e2a7SScott Wood 1696dd652faSwdenkOBJCFLAGS += --gap-fill=0xff 170e2211743Swdenk 171b783edaeSwdenkgccincdir := $(shell $(CC) -print-file-name=include) 172b783edaeSwdenk 173e2211743SwdenkCPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \ 174161b2af4SMike Frysinger -D__KERNEL__ 175c8f9c302SDaniel Schwierzeck 176c8f9c302SDaniel Schwierzeck# Enable garbage collection of un-used sections for SPL 177c8f9c302SDaniel Schwierzeckifeq ($(CONFIG_SPL_BUILD),y) 178c8f9c302SDaniel SchwierzeckCPPFLAGS += -ffunction-sections -fdata-sections 179c8f9c302SDaniel SchwierzeckLDFLAGS_FINAL += --gc-sections 180c8f9c302SDaniel Schwierzeckendif 181c8f9c302SDaniel Schwierzeck 18214d0a02aSWolfgang Denkifneq ($(CONFIG_SYS_TEXT_BASE),) 18314d0a02aSWolfgang DenkCPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) 184161b2af4SMike Frysingerendif 185f9328639SMarian Balakowicz 186c8f9c302SDaniel Schwierzeckifneq ($(CONFIG_SPL_TEXT_BASE),) 187c8f9c302SDaniel SchwierzeckCPPFLAGS += -DCONFIG_SPL_TEXT_BASE=$(CONFIG_SPL_TEXT_BASE) 188c8f9c302SDaniel Schwierzeckendif 189c8f9c302SDaniel Schwierzeck 190c8f9c302SDaniel Schwierzeckifeq ($(CONFIG_SPL_BUILD),y) 191c8f9c302SDaniel SchwierzeckCPPFLAGS += -DCONFIG_SPL_BUILD 192c8f9c302SDaniel Schwierzeckendif 193c8f9c302SDaniel Schwierzeck 1946c97a20dSKumar Galaifneq ($(RESET_VECTOR_ADDRESS),) 1956c97a20dSKumar GalaCPPFLAGS += -DRESET_VECTOR_ADDRESS=$(RESET_VECTOR_ADDRESS) 1966c97a20dSKumar Galaendif 1976c97a20dSKumar Gala 198f9328639SMarian Balakowiczifneq ($(OBJTREE),$(SRCTREE)) 199f9328639SMarian BalakowiczCPPFLAGS += -I$(OBJTREE)/include2 -I$(OBJTREE)/include 200f9328639SMarian Balakowiczendif 201f9328639SMarian Balakowicz 202f9328639SMarian BalakowiczCPPFLAGS += -I$(TOPDIR)/include 203f9328639SMarian BalakowiczCPPFLAGS += -fno-builtin -ffreestanding -nostdinc \ 204f9328639SMarian Balakowicz -isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS) 205e2211743Swdenk 206e2211743Swdenkifdef BUILD_TAG 207e2211743SwdenkCFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \ 208e2211743Swdenk -DBUILD_TAG='"$(BUILD_TAG)"' 209e2211743Swdenkelse 210e2211743SwdenkCFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes 211e2211743Swdenkendif 212e2211743Swdenk 21328eab0d7SHaavard SkinnemoenCFLAGS += $(call cc-option,-fno-stack-protector) 2146262e4e7SMike Frysinger# Some toolchains enable security related warning flags by default, 2156262e4e7SMike Frysinger# but they don't make much sense in the u-boot world, so disable them. 2166262e4e7SMike FrysingerCFLAGS += $(call cc-option,-Wno-format-nonliteral) 2176262e4e7SMike FrysingerCFLAGS += $(call cc-option,-Wno-format-security) 21828eab0d7SHaavard Skinnemoen 219e11887a7SHaavard Skinnemoen# $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 220e11887a7SHaavard Skinnemoen# option to the assembler. 221e11887a7SHaavard SkinnemoenAFLAGS_DEBUG := 222b62fa913SMarian Balakowicz 223483a0cf8SMarian Balakowicz# turn jbsr into jsr for m68k 224483a0cf8SMarian Balakowiczifeq ($(ARCH),m68k) 225483a0cf8SMarian Balakowiczifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 226483a0cf8SMarian BalakowiczAFLAGS_DEBUG := -Wa,-gstabs,-S 227483a0cf8SMarian Balakowiczendif 228483a0cf8SMarian Balakowiczendif 229b62fa913SMarian Balakowicz 230e2211743SwdenkAFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS) 231e2211743Swdenk 2328aba9dceSNobuhiro IwamatsuLDFLAGS += $(PLATFORM_LDFLAGS) 2336dc1ecebSHaiying WangLDFLAGS_FINAL += -Bstatic 2348aba9dceSNobuhiro Iwamatsu 2356dc1ecebSHaiying WangLDFLAGS_u-boot += -T $(obj)u-boot.lds $(LDFLAGS_FINAL) 23614d0a02aSWolfgang Denkifneq ($(CONFIG_SYS_TEXT_BASE),) 2378aba9dceSNobuhiro IwamatsuLDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 238161b2af4SMike Frysingerendif 239e2211743Swdenk 240c8f9c302SDaniel SchwierzeckLDFLAGS_u-boot-spl += -T $(obj)u-boot-spl.lds $(LDFLAGS_FINAL) 241c8f9c302SDaniel Schwierzeckifneq ($(CONFIG_SPL_TEXT_BASE),) 242c8f9c302SDaniel SchwierzeckLDFLAGS_u-boot-spl += -Ttext $(CONFIG_SPL_TEXT_BASE) 243c8f9c302SDaniel Schwierzeckendif 244c8f9c302SDaniel Schwierzeck 245e2211743Swdenk# Location of a usable BFD library, where we define "usable" as 246e2211743Swdenk# "built for ${HOST}, supports ${TARGET}". Sensible values are 247e2211743Swdenk# - When cross-compiling: the root of the cross-environment 248e2211743Swdenk# - Linux/ppc (native): /usr 249e2211743Swdenk# - NetBSD/ppc (native): you lose ... (must extract these from the 250e2211743Swdenk# binutils build directory, plus the native and U-Boot include 251e2211743Swdenk# files don't like each other) 252e2211743Swdenk# 253e2211743Swdenk# So far, this is used only by tools/gdb/Makefile. 254e2211743Swdenk 2554cda4378SMike Frysingerifeq ($(HOSTOS),darwin) 256e2211743SwdenkBFD_ROOT_DIR = /usr/local/tools 257e2211743Swdenkelse 258ea909b76Swdenkifeq ($(HOSTARCH),$(ARCH)) 259ea909b76Swdenk# native 260ea909b76SwdenkBFD_ROOT_DIR = /usr 261ea909b76Swdenkelse 262e2211743Swdenk#BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386 263e2211743Swdenk#BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386 264e2211743SwdenkBFD_ROOT_DIR = /opt/powerpc 265e2211743Swdenkendif 266ea909b76Swdenkendif 267e2211743Swdenk 268e2211743Swdenk######################################################################### 269e2211743Swdenk 270d984fed0SScott Woodexport HOSTCC HOSTCFLAGS HOSTLDFLAGS PEDCFLAGS HOSTSTRIP CROSS_COMPILE \ 271434c51a5SPeter Tyser AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP MAKE 27214d0a02aSWolfgang Denkexport CONFIG_SYS_TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS 273e2211743Swdenk 274e2211743Swdenk######################################################################### 275e2211743Swdenk 2765ec5529bSMike Frysinger# Allow boards to use custom optimize flags on a per dir/file basis 27789f39e17SPeter TyserBCURDIR = $(subst $(SRCTREE)/,,$(CURDIR:$(obj)%=%)) 278326a6945SMike FrysingerALL_AFLAGS = $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR)) 279326a6945SMike FrysingerALL_CFLAGS = $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) 280*47508843SSimon GlassEXTRA_CPPFLAGS = $(CPPFLAGS_$(BCURDIR)/$(@F)) $(CPPFLAGS_$(BCURDIR)) 281*47508843SSimon GlassALL_CFLAGS += $(EXTRA_CPPFLAGS) 282*47508843SSimon Glass 283*47508843SSimon Glass# The _DEP version uses the $< file target (for dependency generation) 284*47508843SSimon Glass# See rules.mk 285*47508843SSimon GlassEXTRA_CPPFLAGS_DEP = $(CPPFLAGS_$(BCURDIR)/$(addsuffix .o,$(basename $<))) \ 286*47508843SSimon Glass $(CPPFLAGS_$(BCURDIR)) 287f9328639SMarian Balakowicz$(obj)%.s: %.S 288326a6945SMike Frysinger $(CPP) $(ALL_AFLAGS) -o $@ $< 289f9328639SMarian Balakowicz$(obj)%.o: %.S 290326a6945SMike Frysinger $(CC) $(ALL_AFLAGS) -o $@ $< -c 291f9328639SMarian Balakowicz$(obj)%.o: %.c 292326a6945SMike Frysinger $(CC) $(ALL_CFLAGS) -o $@ $< -c 29331f30c9eSMike Frysinger$(obj)%.i: %.c 294326a6945SMike Frysinger $(CPP) $(ALL_CFLAGS) -o $@ $< -c 29531f30c9eSMike Frysinger$(obj)%.s: %.c 296326a6945SMike Frysinger $(CC) $(ALL_CFLAGS) -o $@ $< -c -S 297f9328639SMarian Balakowicz 298e2211743Swdenk######################################################################### 2996d8962e8SSebastien Carlier 3006d8962e8SSebastien Carlier# If the list of objects to link is empty, just create an empty built-in.o 3016d8962e8SSebastien Carliercmd_link_o_target = $(if $(strip $1),\ 3028aba9dceSNobuhiro Iwamatsu $(LD) $(LDFLAGS) -r -o $@ $1,\ 3036d8962e8SSebastien Carlier rm -f $@; $(AR) rcs $@ ) 3046d8962e8SSebastien Carlier 3056d8962e8SSebastien Carlier######################################################################### 306