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__
56 ifeq ($(ARCH),blackfin)
57 PLATFORM_CPPFLAGS+= -D__BLACKFIN__ -mno-underscore
61 sinclude $(TOPDIR)/$(ARCH)_config.mk # include architecture dependend rules
64 sinclude $(TOPDIR)/cpu/$(CPU)/config.mk # include CPU specific rules
67 sinclude $(TOPDIR)/cpu/$(CPU)/$(SOC)/config.mk # include SoC specific rules
70 BOARDDIR = $(VENDOR)/$(BOARD)
75 sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules
78 #########################################################################
80 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
81 else if [ -x /bin/bash ]; then echo /bin/bash; \
82 else echo sh; fi ; fi)
84 ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
89 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
92 #########################################################################
94 # Option checker (courtesy linux kernel) to ensure
95 # only supported compiler options are used
97 cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
98 > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
101 # Include the make variables (CC, etc...)
103 AS = $(CROSS_COMPILE)as
104 LD = $(CROSS_COMPILE)ld
105 CC = $(CROSS_COMPILE)gcc
107 AR = $(CROSS_COMPILE)ar
108 NM = $(CROSS_COMPILE)nm
109 STRIP = $(CROSS_COMPILE)strip
110 OBJCOPY = $(CROSS_COMPILE)objcopy
111 OBJDUMP = $(CROSS_COMPILE)objdump
112 RANLIB = $(CROSS_COMPILE)RANLIB
114 RELFLAGS= $(PLATFORM_RELFLAGS)
115 DBGFLAGS= -g # -DDEBUG
116 OPTFLAGS= -Os #-fomit-frame-pointer
118 #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
119 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
121 OBJCFLAGS += --gap-fill=0xff
123 gccincdir := $(shell $(CC) -print-file-name=include)
125 CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \
126 -D__KERNEL__ -DTEXT_BASE=$(TEXT_BASE) \
127 -I$(TOPDIR)/include \
128 -fno-builtin -ffreestanding -nostdinc -isystem \
129 $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
132 CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \
133 -DBUILD_TAG='"$(BUILD_TAG)"'
135 CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
138 # avoid trigraph warnings while parsing pci.h (produced by NIOS gcc-2.9)
139 # this option have to be placed behind -Wall -- that's why it is here
141 ifeq ($(findstring 2.9,$(shell $(CC) --version)),2.9)
142 CFLAGS := $(CPPFLAGS) -Wall -Wno-trigraphs
146 AFLAGS_DEBUG := -Wa,-gstabs
148 # turn jbsr into jsr for m68k
150 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
151 AFLAGS_DEBUG := -Wa,-gstabs,-S
155 AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
157 LDFLAGS += -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
159 # Location of a usable BFD library, where we define "usable" as
160 # "built for ${HOST}, supports ${TARGET}". Sensible values are
161 # - When cross-compiling: the root of the cross-environment
162 # - Linux/ppc (native): /usr
163 # - NetBSD/ppc (native): you lose ... (must extract these from the
164 # binutils build directory, plus the native and U-Boot include
165 # files don't like each other)
167 # So far, this is used only by tools/gdb/Makefile.
169 ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
170 BFD_ROOT_DIR = /usr/local/tools
172 ifeq ($(HOSTARCH),$(ARCH))
176 #BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386
177 #BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386
178 BFD_ROOT_DIR = /opt/powerpc
182 ifeq ($(PCI_CLOCK),PCI_66M)
183 CFLAGS := $(CFLAGS) -DPCI_66M
186 #########################################################################
188 export CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \
189 AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \
191 export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
193 #########################################################################
196 $(CPP) $(AFLAGS) -o $@ $(CURDIR)/$<
198 $(CC) $(AFLAGS) -c -o $@ $(CURDIR)/$<
200 $(CC) $(CFLAGS) -c -o $@ $<
202 #########################################################################