keymile-common.h: remove IO mux stuff
[people/ms/u-boot.git] / config.mk
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e2211743 1#
f9328639 2# (C) Copyright 2000-2006
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3# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4#
5# See file CREDITS for list of people who contributed to this
6# project.
7#
8# This program is free software; you can redistribute it and/or
9# modify it under the terms of the GNU General Public License as
10# published by the Free Software Foundation; either version 2 of
11# the License, or (at your option) any later version.
12#
13# This program is distributed in the hope that it will be useful,
14# but WITHOUT ANY WARRANTY; without even the implied warranty of
844f07d8 15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16# GNU General Public License for more details.
17#
18# You should have received a copy of the GNU General Public License
19# along with this program; if not, write to the Free Software
20# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21# MA 02111-1307 USA
22#
23
24#########################################################################
25
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26ifneq ($(OBJTREE),$(SRCTREE))
27ifeq ($(CURDIR),$(SRCTREE))
511d0c72 28dir :=
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29else
30dir := $(subst $(SRCTREE)/,,$(CURDIR))
31endif
32
33obj := $(if $(dir),$(OBJTREE)/$(dir)/,$(OBJTREE)/)
34src := $(if $(dir),$(SRCTREE)/$(dir)/,$(SRCTREE)/)
35
36$(shell mkdir -p $(obj))
37else
38obj :=
39src :=
40endif
41
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42# clean the slate ...
43PLATFORM_RELFLAGS =
44PLATFORM_CPPFLAGS =
45PLATFORM_LDFLAGS =
46
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47#########################################################################
48
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49HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
50 $(HOSTCPPFLAGS)
51HOSTSTRIP = strip
52
53#
54# Mac OS X / Darwin's C preprocessor is Apple specific. It
55# generates numerous errors and warnings. We want to bypass it
844f07d8 56# and use GNU C's cpp. To do this we pass the -traditional-cpp
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57# option to the compiler. Note that the -traditional-cpp flag
58# DOES NOT have the same semantics as GNU C's flag, all it does
59# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
60#
61# Apple's linker is similar, thanks to the new 2 stage linking
62# multiple symbol definitions are treated as errors, hence the
63# -multiply_defined suppress option to turn off this error.
64#
65
4cda4378 66ifeq ($(HOSTOS),darwin)
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67# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
68DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
69DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
70
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71os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
72 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
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73
74# Snow Leopards build environment has no longer restrictions as described above
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75HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
76HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
77HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
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78else
79HOSTCC = gcc
80endif
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81
82ifeq ($(HOSTOS),cygwin)
83HOSTCFLAGS += -ansi
84endif
85
86# We build some files with extra pedantic flags to try to minimize things
87# that won't build on some weird host compiler -- though there are lots of
88# exceptions for files that aren't complaint.
89
90HOSTCFLAGS_NOPED = $(filter-out -pedantic,$(HOSTCFLAGS))
91HOSTCFLAGS += -pedantic
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92
93#########################################################################
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94#
95# Option checker (courtesy linux kernel) to ensure
96# only supported compiler options are used
97#
98cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
9b880bd4 99 > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
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100
101#
102# Include the make variables (CC, etc...)
103#
104AS = $(CROSS_COMPILE)as
105LD = $(CROSS_COMPILE)ld
106CC = $(CROSS_COMPILE)gcc
107CPP = $(CC) -E
108AR = $(CROSS_COMPILE)ar
109NM = $(CROSS_COMPILE)nm
94a91e24 110LDR = $(CROSS_COMPILE)ldr
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111STRIP = $(CROSS_COMPILE)strip
112OBJCOPY = $(CROSS_COMPILE)objcopy
113OBJDUMP = $(CROSS_COMPILE)objdump
114RANLIB = $(CROSS_COMPILE)RANLIB
115
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116#########################################################################
117
118# Load generated board configuration
119sinclude $(OBJTREE)/include/autoconf.mk
5e987ddf 120sinclude $(OBJTREE)/include/config.mk
c4e5f52a 121
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122# Some architecture config.mk files need to know what CPUDIR is set to,
123# so calculate CPUDIR before including ARCH/SOC/CPU config.mk files.
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124# Check if arch/$ARCH/cpu/$CPU exists, otherwise assume arch/$ARCH/cpu contains
125# CPU-specific code.
126CPUDIR=arch/$(ARCH)/cpu/$(CPU)
127ifneq ($(SRCTREE)/$(CPUDIR),$(wildcard $(SRCTREE)/$(CPUDIR)))
128CPUDIR=arch/$(ARCH)/cpu
129endif
03b7004d 130
ea0364f1 131sinclude $(TOPDIR)/arch/$(ARCH)/config.mk # include architecture dependend rules
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132sinclude $(TOPDIR)/$(CPUDIR)/config.mk # include CPU specific rules
133
c4e5f52a 134ifdef SOC
03b7004d 135sinclude $(TOPDIR)/$(CPUDIR)/$(SOC)/config.mk # include SoC specific rules
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136endif
137ifdef VENDOR
138BOARDDIR = $(VENDOR)/$(BOARD)
139else
140BOARDDIR = $(BOARD)
141endif
142ifdef BOARD
143sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules
144endif
145
146#########################################################################
147
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148ifneq (,$(findstring s,$(MAKEFLAGS)))
149ARFLAGS = cr
150else
2b208f53 151ARFLAGS = crv
1954be6e 152endif
e2211743 153RELFLAGS= $(PLATFORM_RELFLAGS)
9acb626f 154DBGFLAGS= -g # -DDEBUG
e2211743 155OPTFLAGS= -Os #-fomit-frame-pointer
6dd652fa 156ifndef LDSCRIPT
4aeb251f 157#LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
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158ifeq ($(CONFIG_NAND_U_BOOT),y)
159LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
160else
e2211743 161LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
6dd652fa 162endif
887e2ec9 163endif
6dd652fa 164OBJCFLAGS += --gap-fill=0xff
e2211743 165
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166gccincdir := $(shell $(CC) -print-file-name=include)
167
e2211743 168CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \
161b2af4 169 -D__KERNEL__
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170ifneq ($(CONFIG_SYS_TEXT_BASE),)
171CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
161b2af4 172endif
f9328639 173
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174ifneq ($(RESET_VECTOR_ADDRESS),)
175CPPFLAGS += -DRESET_VECTOR_ADDRESS=$(RESET_VECTOR_ADDRESS)
176endif
177
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178ifneq ($(OBJTREE),$(SRCTREE))
179CPPFLAGS += -I$(OBJTREE)/include2 -I$(OBJTREE)/include
180endif
181
182CPPFLAGS += -I$(TOPDIR)/include
53677ef1 183CPPFLAGS += -fno-builtin -ffreestanding -nostdinc \
f9328639 184 -isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
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185
186ifdef BUILD_TAG
187CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \
188 -DBUILD_TAG='"$(BUILD_TAG)"'
189else
190CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
191endif
192
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193CFLAGS += $(call cc-option,-fno-stack-protector)
194
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195# $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
196# option to the assembler.
197AFLAGS_DEBUG :=
b62fa913 198
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199# turn jbsr into jsr for m68k
200ifeq ($(ARCH),m68k)
201ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
202AFLAGS_DEBUG := -Wa,-gstabs,-S
203endif
483a0cf8 204endif
b62fa913 205
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206AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
207
8aba9dce 208LDFLAGS += $(PLATFORM_LDFLAGS)
6dc1eceb 209LDFLAGS_FINAL += -Bstatic
8aba9dce 210
6dc1eceb 211LDFLAGS_u-boot += -T $(obj)u-boot.lds $(LDFLAGS_FINAL)
14d0a02a 212ifneq ($(CONFIG_SYS_TEXT_BASE),)
8aba9dce 213LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
161b2af4 214endif
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215
216# Location of a usable BFD library, where we define "usable" as
217# "built for ${HOST}, supports ${TARGET}". Sensible values are
218# - When cross-compiling: the root of the cross-environment
219# - Linux/ppc (native): /usr
220# - NetBSD/ppc (native): you lose ... (must extract these from the
221# binutils build directory, plus the native and U-Boot include
222# files don't like each other)
223#
224# So far, this is used only by tools/gdb/Makefile.
225
4cda4378 226ifeq ($(HOSTOS),darwin)
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227BFD_ROOT_DIR = /usr/local/tools
228else
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229ifeq ($(HOSTARCH),$(ARCH))
230# native
231BFD_ROOT_DIR = /usr
232else
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233#BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386
234#BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386
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235BFD_ROOT_DIR = /opt/powerpc
236endif
ea909b76 237endif
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238
239#########################################################################
240
d984fed0 241export HOSTCC HOSTCFLAGS HOSTLDFLAGS PEDCFLAGS HOSTSTRIP CROSS_COMPILE \
434c51a5 242 AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP MAKE
14d0a02a 243export CONFIG_SYS_TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
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244
245#########################################################################
246
5ec5529b 247# Allow boards to use custom optimize flags on a per dir/file basis
89f39e17 248BCURDIR = $(subst $(SRCTREE)/,,$(CURDIR:$(obj)%=%))
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249ALL_AFLAGS = $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR))
250ALL_CFLAGS = $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR))
f9328639 251$(obj)%.s: %.S
326a6945 252 $(CPP) $(ALL_AFLAGS) -o $@ $<
f9328639 253$(obj)%.o: %.S
326a6945 254 $(CC) $(ALL_AFLAGS) -o $@ $< -c
f9328639 255$(obj)%.o: %.c
326a6945 256 $(CC) $(ALL_CFLAGS) -o $@ $< -c
31f30c9e 257$(obj)%.i: %.c
326a6945 258 $(CPP) $(ALL_CFLAGS) -o $@ $< -c
31f30c9e 259$(obj)%.s: %.c
326a6945 260 $(CC) $(ALL_CFLAGS) -o $@ $< -c -S
f9328639 261
e2211743 262#########################################################################
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263
264# If the list of objects to link is empty, just create an empty built-in.o
265cmd_link_o_target = $(if $(strip $1),\
8aba9dce 266 $(LD) $(LDFLAGS) -r -o $@ $1,\
844f07d8 267 rm -f $@; $(AR) rcs $@ )
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268
269#########################################################################