3 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 # See file CREDITS for list of people who contributed to this
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.
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.
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,
24 #########################################################################
26 ifneq ($(OBJTREE),$(SRCTREE))
27 ifeq ($(CURDIR),$(SRCTREE))
30 dir := $(subst $(SRCTREE)/,,$(CURDIR))
33 obj := $(if $(dir),$(OBJTREE)/$(dir)/,$(OBJTREE)/)
34 src := $(if $(dir),$(SRCTREE)/$(dir)/,$(SRCTREE)/)
36 $(shell mkdir -p $(obj))
48 # When cross-compiling on NetBSD, we have to define __PPC__ or else we
49 # will pick up a va_list declaration that is incompatible with the
50 # actual argument lists emitted by the compiler.
52 # [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3]
55 ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
56 PLATFORM_CPPFLAGS+= -D__PPC__
58 ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
59 PLATFORM_CPPFLAGS+= -D__PPC__
64 ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
65 PLATFORM_CPPFLAGS+= -D__ARM__
67 ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
68 PLATFORM_CPPFLAGS+= -D__ARM__
73 sinclude $(TOPDIR)/$(ARCH)_config.mk # include architecture dependend rules
76 sinclude $(TOPDIR)/cpu/$(CPU)/config.mk # include CPU specific rules
79 BOARDDIR = $(VENDOR)/$(BOARD)
84 sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules
87 #########################################################################
89 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
90 else if [ -x /bin/bash ]; then echo /bin/bash; \
91 else echo sh; fi ; fi)
93 ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
98 HOSTCFLAGS += -Wall -g -O3
101 #########################################################################
103 # Option checker (courtesy linux kernel) to ensure
104 # only supported compiler options are used
106 cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
107 > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
110 # Include the make variables (CC, etc...)
112 AS = $(CROSS_COMPILE)as
113 LD = $(CROSS_COMPILE)ld
114 CC = $(CROSS_COMPILE)gcc
116 AR = $(CROSS_COMPILE)ar
117 NM = $(CROSS_COMPILE)nm
118 STRIP = $(CROSS_COMPILE)strip
119 OBJCOPY = $(CROSS_COMPILE)objcopy
120 OBJDUMP = $(CROSS_COMPILE)objdump
121 RANLIB = $(CROSS_COMPILE)RANLIB
123 RELFLAGS= $(PLATFORM_RELFLAGS)
124 DBGFLAGS= -g # -DDEBUG
125 OPTFLAGS= -Os #-fomit-frame-pointer
127 #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/x-load.lds.debug
128 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/x-load.lds
130 OBJCFLAGS += --gap-fill=0xff
132 gccincdir := $(shell $(CC) -print-file-name=include)
134 CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \
135 -D__KERNEL__ -DTEXT_BASE=$(TEXT_BASE)
137 ifneq ($(OBJTREE),$(SRCTREE))
138 CPPFLAGS += -I$(OBJTREE)/include
141 CPPFLAGS += -I$(TOPDIR)/include
142 CPPFLAGS += -fno-builtin -ffreestanding -nostdinc \
143 -isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
146 CFLAGS += $(CPPFLAGS) -Wall -Wstrict-prototypes \
147 -DBUILD_TAG='"$(BUILD_TAG)"'
149 CFLAGS += $(CPPFLAGS) -Wall -Wstrict-prototypes
152 CFLAGS += -marm -fno-stack-protector
155 AFLAGS_DEBUG := -Wa,-gstabs
156 AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
158 LDFLAGS += -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
160 # Location of a usable BFD library, where we define "usable" as
161 # "built for ${HOST}, supports ${TARGET}". Sensible values are
162 # - When cross-compiling: the root of the cross-environment
163 # - Linux/ppc (native): /usr
164 # - NetBSD/ppc (native): you lose ... (must extract these from the
165 # binutils build directory, plus the native and U-Boot include
166 # files don't like each other)
168 # So far, this is used only by tools/gdb/Makefile.
170 ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
171 BFD_ROOT_DIR = /usr/local/tools
173 ifeq ($(HOSTARCH),$(ARCH))
177 #BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386
178 #BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386
179 BFD_ROOT_DIR = /opt/powerpc
183 #########################################################################
185 export CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \
186 AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \
188 export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
190 #########################################################################
195 $(CPP) $(AFLAGS) -o $@ $<
197 $(CC) $(AFLAGS) -c -o $@ $<
199 $(CC) $(CFLAGS) -c -o $@ $<
204 $(CPP) $(AFLAGS) -o $@ $<
206 $(CC) $(AFLAGS) -c -o $@ $<
208 $(CC) $(CFLAGS) -c -o $@ $<
211 #########################################################################