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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 | # # (C) Copyright 2000-2006 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. # # See file CREDITS for list of people who contributed to this # project. # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License as # published by the Free Software Foundation; either version 2 of # the License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, # MA 02111-1307 USA # ######################################################################### ifneq ($(OBJTREE),$(SRCTREE)) ifeq ($(CURDIR),$(SRCTREE)) dir := else dir := $(subst $(SRCTREE)/,,$(CURDIR)) endif obj := $(if $(dir),$(OBJTREE)/$(dir)/,$(OBJTREE)/) src := $(if $(dir),$(SRCTREE)/$(dir)/,$(SRCTREE)/) $(shell mkdir -p $(obj)) else obj := src := endif # clean the slate ... PLATFORM_RELFLAGS = PLATFORM_CPPFLAGS = PLATFORM_LDFLAGS = # # When cross-compiling on NetBSD, we have to define __PPC__ or else we # will pick up a va_list declaration that is incompatible with the # actual argument lists emitted by the compiler. # # [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3] ifeq ($(ARCH),ppc) ifeq ($(CROSS_COMPILE),powerpc-netbsd-) PLATFORM_CPPFLAGS+= -D__PPC__ endif ifeq ($(CROSS_COMPILE),powerpc-openbsd-) PLATFORM_CPPFLAGS+= -D__PPC__ endif endif ifeq ($(ARCH),arm) ifeq ($(CROSS_COMPILE),powerpc-netbsd-) PLATFORM_CPPFLAGS+= -D__ARM__ endif ifeq ($(CROSS_COMPILE),powerpc-openbsd-) PLATFORM_CPPFLAGS+= -D__ARM__ endif endif # Load generated board configuration sinclude $(OBJTREE)/include/autoconf.mk ifdef ARCH sinclude $(TOPDIR)/$(ARCH)_config.mk # include architecture dependend rules endif ifdef CPU sinclude $(TOPDIR)/cpu/$(CPU)/config.mk # include CPU specific rules endif ifdef SOC sinclude $(TOPDIR)/cpu/$(CPU)/$(SOC)/config.mk # include SoC specific rules endif ifdef VENDOR BOARDDIR = $(VENDOR)/$(BOARD) else BOARDDIR = $(BOARD) endif ifdef BOARD sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules endif ######################################################################### CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ else if [ -x /bin/bash ]; then echo /bin/bash; \ else echo sh; fi ; fi) ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc) HOSTCC = cc else HOSTCC = gcc endif HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer HOSTSTRIP = strip ######################################################################### # # Option checker (courtesy linux kernel) to ensure # only supported compiler options are used # cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \ > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;) # # Include the make variables (CC, etc...) # AS = $(CROSS_COMPILE)as LD = $(CROSS_COMPILE)ld CC = $(CROSS_COMPILE)gcc CPP = $(CC) -E AR = $(CROSS_COMPILE)ar NM = $(CROSS_COMPILE)nm LDR = $(CROSS_COMPILE)ldr STRIP = $(CROSS_COMPILE)strip OBJCOPY = $(CROSS_COMPILE)objcopy OBJDUMP = $(CROSS_COMPILE)objdump RANLIB = $(CROSS_COMPILE)RANLIB ifneq (,$(findstring s,$(MAKEFLAGS))) ARFLAGS = cr else ARFLAGS = crv endif RELFLAGS= $(PLATFORM_RELFLAGS) DBGFLAGS= -g # -DDEBUG OPTFLAGS= -Os #-fomit-frame-pointer ifndef LDSCRIPT #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug ifeq ($(CONFIG_NAND_U_BOOT),y) LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds else LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds endif endif OBJCFLAGS += --gap-fill=0xff gccincdir := $(shell $(CC) -print-file-name=include) CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \ -D__KERNEL__ ifneq ($(TEXT_BASE),) CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE) endif ifneq ($(OBJTREE),$(SRCTREE)) CPPFLAGS += -I$(OBJTREE)/include2 -I$(OBJTREE)/include endif CPPFLAGS += -I$(TOPDIR)/include CPPFLAGS += -fno-builtin -ffreestanding -nostdinc \ -isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS) ifdef BUILD_TAG CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \ -DBUILD_TAG='"$(BUILD_TAG)"' else CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes endif # avoid trigraph warnings while parsing pci.h (produced by NIOS gcc-2.9) # this option have to be placed behind -Wall -- that's why it is here ifeq ($(ARCH),nios) ifeq ($(findstring 2.9,$(shell $(CC) --version)),2.9) CFLAGS := $(CPPFLAGS) -Wall -Wno-trigraphs endif endif # $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format> # option to the assembler. AFLAGS_DEBUG := # turn jbsr into jsr for m68k ifeq ($(ARCH),m68k) ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) AFLAGS_DEBUG := -Wa,-gstabs,-S endif endif AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS) LDFLAGS += -Bstatic -T $(LDSCRIPT) $(PLATFORM_LDFLAGS) ifneq ($(TEXT_BASE),) LDFLAGS += -Ttext $(TEXT_BASE) endif # Location of a usable BFD library, where we define "usable" as # "built for ${HOST}, supports ${TARGET}". Sensible values are # - When cross-compiling: the root of the cross-environment # - Linux/ppc (native): /usr # - NetBSD/ppc (native): you lose ... (must extract these from the # binutils build directory, plus the native and U-Boot include # files don't like each other) # # So far, this is used only by tools/gdb/Makefile. ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc) BFD_ROOT_DIR = /usr/local/tools else ifeq ($(HOSTARCH),$(ARCH)) # native BFD_ROOT_DIR = /usr else #BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386 #BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386 BFD_ROOT_DIR = /opt/powerpc endif endif ifeq ($(PCI_CLOCK),PCI_66M) CFLAGS := $(CFLAGS) -DPCI_66M endif ######################################################################### export CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \ AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \ MAKE export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS ######################################################################### ifndef REMOTE_BUILD %.s: %.S $(CPP) $(AFLAGS) -o $@ $< %.o: %.S $(CC) $(AFLAGS) -c -o $@ $< %.o: %.c $(CC) $(CFLAGS) -c -o $@ $< else $(obj)%.s: %.S $(CPP) $(AFLAGS) -o $@ $< $(obj)%.o: %.S $(CC) $(AFLAGS) -c -o $@ $< $(obj)%.o: %.c $(CC) $(CFLAGS) -c -o $@ $< endif ######################################################################### |