Fix remaining CONFIG_COMMANDS
[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
15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 $(obj))
37else
38obj :=
39src :=
40endif
41
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42# clean the slate ...
43PLATFORM_RELFLAGS =
44PLATFORM_CPPFLAGS =
45PLATFORM_LDFLAGS =
46
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47#
48# When cross-compiling on NetBSD, we have to define __PPC__ or else we
49# will pick up a va_list declaration that is incompatible with the
50# actual argument lists emitted by the compiler.
51#
52# [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3]
53
54ifeq ($(ARCH),ppc)
55ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
56PLATFORM_CPPFLAGS+= -D__PPC__
57endif
58ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
59PLATFORM_CPPFLAGS+= -D__PPC__
60endif
61endif
62
63ifeq ($(ARCH),arm)
64ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
65PLATFORM_CPPFLAGS+= -D__ARM__
66endif
67ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
68PLATFORM_CPPFLAGS+= -D__ARM__
69endif
70endif
71
72ifdef ARCH
73sinclude $(TOPDIR)/$(ARCH)_config.mk # include architecture dependend rules
74endif
75ifdef CPU
76sinclude $(TOPDIR)/cpu/$(CPU)/config.mk # include CPU specific rules
77endif
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78ifdef SOC
79sinclude $(TOPDIR)/cpu/$(CPU)/$(SOC)/config.mk # include SoC specific rules
80endif
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81ifdef VENDOR
82BOARDDIR = $(VENDOR)/$(BOARD)
83else
84BOARDDIR = $(BOARD)
85endif
86ifdef BOARD
87sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules
88endif
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89
90# Load generated board configuration
91sinclude $(OBJTREE)/include/autoconf.mk
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92
93#########################################################################
94
95CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
96 else if [ -x /bin/bash ]; then echo /bin/bash; \
97 else echo sh; fi ; fi)
98
99ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
100HOSTCC = cc
101else
102HOSTCC = gcc
103endif
104HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
105HOSTSTRIP = strip
106
107#########################################################################
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108#
109# Option checker (courtesy linux kernel) to ensure
110# only supported compiler options are used
111#
112cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
9b880bd4 113 > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
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114
115#
116# Include the make variables (CC, etc...)
117#
118AS = $(CROSS_COMPILE)as
119LD = $(CROSS_COMPILE)ld
120CC = $(CROSS_COMPILE)gcc
121CPP = $(CC) -E
122AR = $(CROSS_COMPILE)ar
123NM = $(CROSS_COMPILE)nm
124STRIP = $(CROSS_COMPILE)strip
125OBJCOPY = $(CROSS_COMPILE)objcopy
126OBJDUMP = $(CROSS_COMPILE)objdump
127RANLIB = $(CROSS_COMPILE)RANLIB
128
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129ifneq (,$(findstring s,$(MAKEFLAGS)))
130ARFLAGS = cr
131else
2b208f53 132ARFLAGS = crv
1954be6e 133endif
e2211743 134RELFLAGS= $(PLATFORM_RELFLAGS)
9acb626f 135DBGFLAGS= -g # -DDEBUG
e2211743 136OPTFLAGS= -Os #-fomit-frame-pointer
6dd652fa 137ifndef LDSCRIPT
4aeb251f 138#LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
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139ifeq ($(CONFIG_NAND_U_BOOT),y)
140LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
141else
e2211743 142LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
6dd652fa 143endif
887e2ec9 144endif
6dd652fa 145OBJCFLAGS += --gap-fill=0xff
e2211743 146
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147gccincdir := $(shell $(CC) -print-file-name=include)
148
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149CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \
150 -D__KERNEL__ -DTEXT_BASE=$(TEXT_BASE) \
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151
152ifneq ($(OBJTREE),$(SRCTREE))
153CPPFLAGS += -I$(OBJTREE)/include2 -I$(OBJTREE)/include
154endif
155
156CPPFLAGS += -I$(TOPDIR)/include
157CPPFLAGS += -fno-builtin -ffreestanding -nostdinc \
158 -isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
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159
160ifdef BUILD_TAG
161CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \
162 -DBUILD_TAG='"$(BUILD_TAG)"'
163else
164CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
165endif
166
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167# avoid trigraph warnings while parsing pci.h (produced by NIOS gcc-2.9)
168# this option have to be placed behind -Wall -- that's why it is here
169ifeq ($(ARCH),nios)
170ifeq ($(findstring 2.9,$(shell $(CC) --version)),2.9)
e4cc71aa 171CFLAGS := $(CPPFLAGS) -Wall -Wno-trigraphs
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172endif
173endif
174
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175# $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
176# option to the assembler.
177AFLAGS_DEBUG :=
b62fa913 178
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179# turn jbsr into jsr for m68k
180ifeq ($(ARCH),m68k)
181ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
182AFLAGS_DEBUG := -Wa,-gstabs,-S
183endif
483a0cf8 184endif
b62fa913 185
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186AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
187
7f6c2cbc 188LDFLAGS += -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
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189
190# Location of a usable BFD library, where we define "usable" as
191# "built for ${HOST}, supports ${TARGET}". Sensible values are
192# - When cross-compiling: the root of the cross-environment
193# - Linux/ppc (native): /usr
194# - NetBSD/ppc (native): you lose ... (must extract these from the
195# binutils build directory, plus the native and U-Boot include
196# files don't like each other)
197#
198# So far, this is used only by tools/gdb/Makefile.
199
200ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
201BFD_ROOT_DIR = /usr/local/tools
202else
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203ifeq ($(HOSTARCH),$(ARCH))
204# native
205BFD_ROOT_DIR = /usr
206else
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207#BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386
208#BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386
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209BFD_ROOT_DIR = /opt/powerpc
210endif
ea909b76 211endif
e2211743 212
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213ifeq ($(PCI_CLOCK),PCI_66M)
214CFLAGS := $(CFLAGS) -DPCI_66M
215endif
216
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217#########################################################################
218
219export CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \
220 AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \
221 MAKE
222export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
223
224#########################################################################
225
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226ifndef REMOTE_BUILD
227
e2211743 228%.s: %.S
f9328639 229 $(CPP) $(AFLAGS) -o $@ $<
e2211743 230%.o: %.S
f9328639 231 $(CC) $(AFLAGS) -c -o $@ $<
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232%.o: %.c
233 $(CC) $(CFLAGS) -c -o $@ $<
234
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235else
236
237$(obj)%.s: %.S
238 $(CPP) $(AFLAGS) -o $@ $<
239$(obj)%.o: %.S
240 $(CC) $(AFLAGS) -c -o $@ $<
241$(obj)%.o: %.c
242 $(CC) $(CFLAGS) -c -o $@ $<
243endif
244
e2211743 245#########################################################################