blob: bff95bde0f8a7731d74ebfc25c0af90dc037887e [file] [log] [blame]
wdenke2211742002-11-02 23:30:20 +00001#
Marian Balakowiczf9328632006-09-01 19:49:50 +02002# (C) Copyright 2000-2006
wdenke2211742002-11-02 23:30:20 +00003# 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
Marian Balakowiczf9328632006-09-01 19:49:50 +020026ifneq ($(OBJTREE),$(SRCTREE))
27ifeq ($(CURDIR),$(SRCTREE))
Wolfgang Denk511d0c72006-10-09 00:42:01 +020028dir :=
Marian Balakowiczf9328632006-09-01 19:49:50 +020029else
30dir := $(subst $(SRCTREE)/,,$(CURDIR))
31endif
32
33obj := $(if $(dir),$(OBJTREE)/$(dir)/,$(OBJTREE)/)
34src := $(if $(dir),$(SRCTREE)/$(dir)/,$(SRCTREE)/)
35
36$(shell mkdir -p $(obj))
37else
38obj :=
39src :=
40endif
41
wdenk592c5ca2003-06-21 00:17:24 +000042# clean the slate ...
43PLATFORM_RELFLAGS =
44PLATFORM_CPPFLAGS =
45PLATFORM_LDFLAGS =
46
wdenke2211742002-11-02 23:30:20 +000047#
48# When cross-compiling on NetBSD, we have to define __PPC__ or else we
49# will pick up a va_list declaration that is incompatible with the
50# actual argument lists emitted by the compiler.
51#
52# [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3]
53
54ifeq ($(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
wdenk1d9f4102004-10-09 22:21:29 +000078ifdef SOC
79sinclude $(TOPDIR)/cpu/$(CPU)/$(SOC)/config.mk # include SoC specific rules
80endif
wdenke2211742002-11-02 23:30:20 +000081ifdef VENDOR
82BOARDDIR = $(VENDOR)/$(BOARD)
83else
84BOARDDIR = $(BOARD)
85endif
86ifdef BOARD
87sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules
88endif
89
Grant Likely2f155f62007-09-24 09:05:31 -060090# Load generated board configuration
91sinclude $(OBJTREE)/include/autoconf.mk
92
wdenke2211742002-11-02 23:30:20 +000093#########################################################################
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#########################################################################
Wolfgang Denk1820d4c2005-10-04 22:38:24 +0200108#
109# Option checker (courtesy linux kernel) to ensure
110# only supported compiler options are used
111#
112cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
Wolfgang Denk9b880bd2005-10-04 23:10:28 +0200113 > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
wdenke2211742002-11-02 23:30:20 +0000114
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 = $(CROSS_COMPILE)RANLIB
128
Wolfgang Denk1954be62006-10-29 01:03:51 +0200129ifneq (,$(findstring s,$(MAKEFLAGS)))
130ARFLAGS = cr
131else
Wolfgang Denk2b208f52006-10-09 01:02:05 +0200132ARFLAGS = crv
Wolfgang Denk1954be62006-10-29 01:03:51 +0200133endif
wdenke2211742002-11-02 23:30:20 +0000134RELFLAGS= $(PLATFORM_RELFLAGS)
Heiko Schocher9acb6262006-04-20 08:42:42 +0200135DBGFLAGS= -g # -DDEBUG
wdenke2211742002-11-02 23:30:20 +0000136OPTFLAGS= -Os #-fomit-frame-pointer
wdenk6dd652f2003-06-19 23:40:20 +0000137ifndef LDSCRIPT
wdenk4aeb2512003-09-16 17:06:05 +0000138#LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
Stefan Roese887e2ec2006-09-07 11:51:23 +0200139ifeq ($(CONFIG_NAND_U_BOOT),y)
140LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
141else
wdenke2211742002-11-02 23:30:20 +0000142LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
wdenk6dd652f2003-06-19 23:40:20 +0000143endif
Stefan Roese887e2ec2006-09-07 11:51:23 +0200144endif
wdenk6dd652f2003-06-19 23:40:20 +0000145OBJCFLAGS += --gap-fill=0xff
wdenke2211742002-11-02 23:30:20 +0000146
wdenkb783eda2003-06-25 22:26:29 +0000147gccincdir := $(shell $(CC) -print-file-name=include)
148
wdenke2211742002-11-02 23:30:20 +0000149CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \
Mike Frysinger161b2af2008-01-28 05:28:50 -0500150 -D__KERNEL__
151ifneq ($(TEXT_BASE),)
152CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE)
153endif
Marian Balakowiczf9328632006-09-01 19:49:50 +0200154
155ifneq ($(OBJTREE),$(SRCTREE))
156CPPFLAGS += -I$(OBJTREE)/include2 -I$(OBJTREE)/include
157endif
158
159CPPFLAGS += -I$(TOPDIR)/include
160CPPFLAGS += -fno-builtin -ffreestanding -nostdinc \
161 -isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
wdenke2211742002-11-02 23:30:20 +0000162
163ifdef BUILD_TAG
164CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \
165 -DBUILD_TAG='"$(BUILD_TAG)"'
166else
167CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
168endif
169
wdenkc40b2952004-03-13 23:29:43 +0000170# avoid trigraph warnings while parsing pci.h (produced by NIOS gcc-2.9)
171# this option have to be placed behind -Wall -- that's why it is here
172ifeq ($(ARCH),nios)
173ifeq ($(findstring 2.9,$(shell $(CC) --version)),2.9)
wdenke4cc71a2004-05-19 21:33:14 +0000174CFLAGS := $(CPPFLAGS) -Wall -Wno-trigraphs
wdenkc40b2952004-03-13 23:29:43 +0000175endif
176endif
177
Haavard Skinnemoene11887a2006-10-26 17:55:31 +0200178# $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
179# option to the assembler.
180AFLAGS_DEBUG :=
Marian Balakowiczb62fa912006-05-17 12:18:48 +0200181
Marian Balakowicz483a0cf2006-05-09 11:28:36 +0200182# turn jbsr into jsr for m68k
183ifeq ($(ARCH),m68k)
184ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
185AFLAGS_DEBUG := -Wa,-gstabs,-S
186endif
Marian Balakowicz483a0cf2006-05-09 11:28:36 +0200187endif
Marian Balakowiczb62fa912006-05-17 12:18:48 +0200188
wdenke2211742002-11-02 23:30:20 +0000189AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
190
Mike Frysinger161b2af2008-01-28 05:28:50 -0500191LDFLAGS += -Bstatic -T $(LDSCRIPT) $(PLATFORM_LDFLAGS)
192ifneq ($(TEXT_BASE),)
193LDFLAGS += -Ttext $(TEXT_BASE)
194endif
wdenke2211742002-11-02 23:30:20 +0000195
196# Location of a usable BFD library, where we define "usable" as
197# "built for ${HOST}, supports ${TARGET}". Sensible values are
198# - When cross-compiling: the root of the cross-environment
199# - Linux/ppc (native): /usr
200# - NetBSD/ppc (native): you lose ... (must extract these from the
201# binutils build directory, plus the native and U-Boot include
202# files don't like each other)
203#
204# So far, this is used only by tools/gdb/Makefile.
205
206ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
207BFD_ROOT_DIR = /usr/local/tools
208else
wdenkea909b72002-11-21 23:11:29 +0000209ifeq ($(HOSTARCH),$(ARCH))
210# native
211BFD_ROOT_DIR = /usr
212else
wdenke2211742002-11-02 23:30:20 +0000213#BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386
214#BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386
wdenke2211742002-11-02 23:30:20 +0000215BFD_ROOT_DIR = /opt/powerpc
216endif
wdenkea909b72002-11-21 23:11:29 +0000217endif
wdenke2211742002-11-02 23:30:20 +0000218
Eran Libertyf046ccd2005-07-28 10:08:46 -0500219ifeq ($(PCI_CLOCK),PCI_66M)
220CFLAGS := $(CFLAGS) -DPCI_66M
221endif
222
wdenke2211742002-11-02 23:30:20 +0000223#########################################################################
224
225export CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \
226 AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \
227 MAKE
228export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
229
230#########################################################################
231
Marian Balakowiczf9328632006-09-01 19:49:50 +0200232ifndef REMOTE_BUILD
233
wdenke2211742002-11-02 23:30:20 +0000234%.s: %.S
Marian Balakowiczf9328632006-09-01 19:49:50 +0200235 $(CPP) $(AFLAGS) -o $@ $<
wdenke2211742002-11-02 23:30:20 +0000236%.o: %.S
Marian Balakowiczf9328632006-09-01 19:49:50 +0200237 $(CC) $(AFLAGS) -c -o $@ $<
wdenke2211742002-11-02 23:30:20 +0000238%.o: %.c
239 $(CC) $(CFLAGS) -c -o $@ $<
240
Marian Balakowiczf9328632006-09-01 19:49:50 +0200241else
242
243$(obj)%.s: %.S
244 $(CPP) $(AFLAGS) -o $@ $<
245$(obj)%.o: %.S
246 $(CC) $(AFLAGS) -c -o $@ $<
247$(obj)%.o: %.c
248 $(CC) $(CFLAGS) -c -o $@ $<
249endif
250
wdenke2211742002-11-02 23:30:20 +0000251#########################################################################