* Patch by Martin Krause, 17 Jul 2003:
[people/ms/u-boot.git] / config.mk
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1#
2# (C) Copyright 2000
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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26# clean the slate ...
27PLATFORM_RELFLAGS =
28PLATFORM_CPPFLAGS =
29PLATFORM_LDFLAGS =
30
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31#
32# When cross-compiling on NetBSD, we have to define __PPC__ or else we
33# will pick up a va_list declaration that is incompatible with the
34# actual argument lists emitted by the compiler.
35#
36# [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3]
37
38ifeq ($(ARCH),ppc)
39ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
40PLATFORM_CPPFLAGS+= -D__PPC__
41endif
42ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
43PLATFORM_CPPFLAGS+= -D__PPC__
44endif
45endif
46
47ifeq ($(ARCH),arm)
48ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
49PLATFORM_CPPFLAGS+= -D__ARM__
50endif
51ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
52PLATFORM_CPPFLAGS+= -D__ARM__
53endif
54endif
55
56ifdef ARCH
57sinclude $(TOPDIR)/$(ARCH)_config.mk # include architecture dependend rules
58endif
59ifdef CPU
60sinclude $(TOPDIR)/cpu/$(CPU)/config.mk # include CPU specific rules
61endif
62ifdef VENDOR
63BOARDDIR = $(VENDOR)/$(BOARD)
64else
65BOARDDIR = $(BOARD)
66endif
67ifdef BOARD
68sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules
69endif
70
71#########################################################################
72
73CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
74 else if [ -x /bin/bash ]; then echo /bin/bash; \
75 else echo sh; fi ; fi)
76
77ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
78HOSTCC = cc
79else
80HOSTCC = gcc
81endif
82HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
83HOSTSTRIP = strip
84
85#########################################################################
86
87#
88# Include the make variables (CC, etc...)
89#
90AS = $(CROSS_COMPILE)as
91LD = $(CROSS_COMPILE)ld
92CC = $(CROSS_COMPILE)gcc
93CPP = $(CC) -E
94AR = $(CROSS_COMPILE)ar
95NM = $(CROSS_COMPILE)nm
96STRIP = $(CROSS_COMPILE)strip
97OBJCOPY = $(CROSS_COMPILE)objcopy
98OBJDUMP = $(CROSS_COMPILE)objdump
99RANLIB = $(CROSS_COMPILE)RANLIB
100
101RELFLAGS= $(PLATFORM_RELFLAGS)
102DBGFLAGS= -g #-DDEBUG
103OPTFLAGS= -Os #-fomit-frame-pointer
6dd652fa 104ifndef LDSCRIPT
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105#LDSCRIPT := board/$(BOARDDIR)/u-boot.lds.debug
106LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
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107endif
108OBJCFLAGS += --gap-fill=0xff
e2211743 109
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110gccincdir := $(shell $(CC) -print-file-name=include)
111
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112CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \
113 -D__KERNEL__ -DTEXT_BASE=$(TEXT_BASE) \
114 -I$(TOPDIR)/include \
b783edae 115 -fno-builtin -nostdinc -isystem $(gccincdir) \
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116 -pipe $(PLATFORM_CPPFLAGS)
117
118ifdef BUILD_TAG
119CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \
120 -DBUILD_TAG='"$(BUILD_TAG)"'
121else
122CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
123endif
124
125AFLAGS_DEBUG := -Wa,-gstabs
126AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
127
7f6c2cbc 128LDFLAGS += -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
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129
130# Location of a usable BFD library, where we define "usable" as
131# "built for ${HOST}, supports ${TARGET}". Sensible values are
132# - When cross-compiling: the root of the cross-environment
133# - Linux/ppc (native): /usr
134# - NetBSD/ppc (native): you lose ... (must extract these from the
135# binutils build directory, plus the native and U-Boot include
136# files don't like each other)
137#
138# So far, this is used only by tools/gdb/Makefile.
139
140ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
141BFD_ROOT_DIR = /usr/local/tools
142else
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143ifeq ($(HOSTARCH),$(ARCH))
144# native
145BFD_ROOT_DIR = /usr
146else
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147#BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386
148#BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386
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149BFD_ROOT_DIR = /opt/powerpc
150endif
ea909b76 151endif
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152
153#########################################################################
154
155export CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \
156 AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \
157 MAKE
158export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
159
160#########################################################################
161
162%.s: %.S
163 $(CPP) $(AFLAGS) -o $@ $(CURDIR)/$<
164%.o: %.S
165 $(CC) $(AFLAGS) -c -o $@ $(CURDIR)/$<
166%.o: %.c
167 $(CC) $(CFLAGS) -c -o $@ $<
168
169#########################################################################