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 #########################################################################
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.
36 # [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3]
39 ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
40 PLATFORM_CPPFLAGS+= -D__PPC__
42 ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
43 PLATFORM_CPPFLAGS+= -D__PPC__
48 ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
49 PLATFORM_CPPFLAGS+= -D__ARM__
51 ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
52 PLATFORM_CPPFLAGS+= -D__ARM__
57 sinclude $(TOPDIR)/$(ARCH)_config.mk # include architecture dependend rules
60 sinclude $(TOPDIR)/cpu/$(CPU)/config.mk # include CPU specific rules
63 BOARDDIR = $(VENDOR)/$(BOARD)
68 sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules
71 #########################################################################
73 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
74 else if [ -x /bin/bash ]; then echo /bin/bash; \
75 else echo sh; fi ; fi)
77 ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
82 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
85 #########################################################################
87 # Option checker (courtesy linux kernel) to ensure
88 # only supported compiler options are used
90 cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
91 > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
94 # Include the make variables (CC, etc...)
96 AS = $(CROSS_COMPILE)as
97 LD = $(CROSS_COMPILE)ld
98 CC = $(CROSS_COMPILE)gcc
100 AR = $(CROSS_COMPILE)ar
101 NM = $(CROSS_COMPILE)nm
102 STRIP = $(CROSS_COMPILE)strip
103 OBJCOPY = $(CROSS_COMPILE)objcopy
104 OBJDUMP = $(CROSS_COMPILE)objdump
105 RANLIB = $(CROSS_COMPILE)RANLIB
107 RELFLAGS= $(PLATFORM_RELFLAGS)
108 DBGFLAGS= -g # -DDEBUG
109 OPTFLAGS= -Os #-fomit-frame-pointer
111 #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/x-load.lds.debug
112 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/x-load.lds
114 OBJCFLAGS += --gap-fill=0xff
116 gccincdir := $(shell $(CC) -print-file-name=include)
118 CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \
119 -D__KERNEL__ -DTEXT_BASE=$(TEXT_BASE) \
120 -I$(TOPDIR)/include \
121 -fno-builtin -ffreestanding -nostdinc -isystem \
122 $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
125 CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \
126 -DBUILD_TAG='"$(BUILD_TAG)"'
128 CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
131 AFLAGS_DEBUG := -Wa,-gstabs
132 AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
134 LDFLAGS += -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
136 # Location of a usable BFD library, where we define "usable" as
137 # "built for ${HOST}, supports ${TARGET}". Sensible values are
138 # - When cross-compiling: the root of the cross-environment
139 # - Linux/ppc (native): /usr
140 # - NetBSD/ppc (native): you lose ... (must extract these from the
141 # binutils build directory, plus the native and U-Boot include
142 # files don't like each other)
144 # So far, this is used only by tools/gdb/Makefile.
146 ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
147 BFD_ROOT_DIR = /usr/local/tools
149 ifeq ($(HOSTARCH),$(ARCH))
153 #BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386
154 #BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386
155 BFD_ROOT_DIR = /opt/powerpc
159 #########################################################################
161 export CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \
162 AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \
164 export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
166 #########################################################################
169 $(CPP) $(AFLAGS) -o $@ $(CURDIR)/$<
171 $(CC) $(AFLAGS) -c -o $@ $(CURDIR)/$<
173 $(CC) $(CFLAGS) -c -o $@ $<
175 #########################################################################