* Patch by Daniel Engström, 18 Nov 2002:
[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
26#
27# When cross-compiling on NetBSD, we have to define __PPC__ or else we
28# will pick up a va_list declaration that is incompatible with the
29# actual argument lists emitted by the compiler.
30#
31# [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3]
32
33ifeq ($(ARCH),ppc)
34ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
35PLATFORM_CPPFLAGS+= -D__PPC__
36endif
37ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
38PLATFORM_CPPFLAGS+= -D__PPC__
39endif
40endif
41
42ifeq ($(ARCH),arm)
43ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
44PLATFORM_CPPFLAGS+= -D__ARM__
45endif
46ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
47PLATFORM_CPPFLAGS+= -D__ARM__
48endif
49endif
50
51ifdef ARCH
52sinclude $(TOPDIR)/$(ARCH)_config.mk # include architecture dependend rules
53endif
54ifdef CPU
55sinclude $(TOPDIR)/cpu/$(CPU)/config.mk # include CPU specific rules
56endif
57ifdef VENDOR
58BOARDDIR = $(VENDOR)/$(BOARD)
59else
60BOARDDIR = $(BOARD)
61endif
62ifdef BOARD
63sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules
64endif
65
66#########################################################################
67
68CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
69 else if [ -x /bin/bash ]; then echo /bin/bash; \
70 else echo sh; fi ; fi)
71
72ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
73HOSTCC = cc
74else
75HOSTCC = gcc
76endif
77HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
78HOSTSTRIP = strip
79
80#########################################################################
81
82#
83# Include the make variables (CC, etc...)
84#
85AS = $(CROSS_COMPILE)as
86LD = $(CROSS_COMPILE)ld
87CC = $(CROSS_COMPILE)gcc
88CPP = $(CC) -E
89AR = $(CROSS_COMPILE)ar
90NM = $(CROSS_COMPILE)nm
91STRIP = $(CROSS_COMPILE)strip
92OBJCOPY = $(CROSS_COMPILE)objcopy
93OBJDUMP = $(CROSS_COMPILE)objdump
94RANLIB = $(CROSS_COMPILE)RANLIB
95
96RELFLAGS= $(PLATFORM_RELFLAGS)
97DBGFLAGS= -g #-DDEBUG
98OPTFLAGS= -Os #-fomit-frame-pointer
99#LDSCRIPT := board/$(BOARDDIR)/u-boot.lds.debug
100LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
101OBJCFLAGS := --gap-fill=0xff
102
103CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \
104 -D__KERNEL__ -DTEXT_BASE=$(TEXT_BASE) \
105 -I$(TOPDIR)/include \
106 -fno-builtin \
107 -pipe $(PLATFORM_CPPFLAGS)
108
109ifdef BUILD_TAG
110CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \
111 -DBUILD_TAG='"$(BUILD_TAG)"'
112else
113CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
114endif
115
116AFLAGS_DEBUG := -Wa,-gstabs
117AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
118
7f6c2cbc 119LDFLAGS += -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
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120
121# Location of a usable BFD library, where we define "usable" as
122# "built for ${HOST}, supports ${TARGET}". Sensible values are
123# - When cross-compiling: the root of the cross-environment
124# - Linux/ppc (native): /usr
125# - NetBSD/ppc (native): you lose ... (must extract these from the
126# binutils build directory, plus the native and U-Boot include
127# files don't like each other)
128#
129# So far, this is used only by tools/gdb/Makefile.
130
131ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
132BFD_ROOT_DIR = /usr/local/tools
133else
134#BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386
135#BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386
136#BFD_ROOT_DIR = /usr # native
137BFD_ROOT_DIR = /opt/powerpc
138endif
139
140#########################################################################
141
142export CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \
143 AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \
144 MAKE
145export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
146
147#########################################################################
148
149%.s: %.S
150 $(CPP) $(AFLAGS) -o $@ $(CURDIR)/$<
151%.o: %.S
152 $(CC) $(AFLAGS) -c -o $@ $(CURDIR)/$<
153%.o: %.c
154 $(CC) $(CFLAGS) -c -o $@ $<
155
156#########################################################################