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 sinclude $(TOPDIR)/cpu/$(CPU)/$(SOC)/config.mk # include SoC specific rules
66 BOARDDIR = $(VENDOR)/$(BOARD)
71 sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules
74 #########################################################################
76 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
77 else if [ -x /bin/bash ]; then echo /bin/bash; \
78 else echo sh; fi ; fi)
80 ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
85 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
88 #########################################################################
90 # Option checker (courtesy linux kernel) to ensure
91 # only supported compiler options are used
93 cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
94 > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
97 # Include the make variables (CC, etc...)
99 AS = $(CROSS_COMPILE)as
100 LD = $(CROSS_COMPILE)ld
101 CC = $(CROSS_COMPILE)gcc
103 AR = $(CROSS_COMPILE)ar
104 NM = $(CROSS_COMPILE)nm
105 STRIP = $(CROSS_COMPILE)strip
106 OBJCOPY = $(CROSS_COMPILE)objcopy
107 OBJDUMP = $(CROSS_COMPILE)objdump
108 RANLIB = $(CROSS_COMPILE)RANLIB
110 RELFLAGS= $(PLATFORM_RELFLAGS)
111 DBGFLAGS= -g #-DDEBUG
112 OPTFLAGS= -Os #-fomit-frame-pointer
114 #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
115 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
117 OBJCFLAGS += --gap-fill=0xff
119 gccincdir := $(shell $(CC) -print-file-name=include)
121 CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \
122 -D__KERNEL__ -DTEXT_BASE=$(TEXT_BASE) \
123 -I$(TOPDIR)/include \
124 -fno-builtin -ffreestanding -nostdinc -isystem \
125 $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
128 CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \
129 -DBUILD_TAG='"$(BUILD_TAG)"'
131 CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
134 # avoid trigraph warnings while parsing pci.h (produced by NIOS gcc-2.9)
135 # this option have to be placed behind -Wall -- that's why it is here
137 ifeq ($(findstring 2.9,$(shell $(CC) --version)),2.9)
138 CFLAGS := $(CPPFLAGS) -Wall -Wno-trigraphs
142 AFLAGS_DEBUG := -Wa,-gstabs
143 AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
145 LDFLAGS += -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
147 # Location of a usable BFD library, where we define "usable" as
148 # "built for ${HOST}, supports ${TARGET}". Sensible values are
149 # - When cross-compiling: the root of the cross-environment
150 # - Linux/ppc (native): /usr
151 # - NetBSD/ppc (native): you lose ... (must extract these from the
152 # binutils build directory, plus the native and U-Boot include
153 # files don't like each other)
155 # So far, this is used only by tools/gdb/Makefile.
157 ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
158 BFD_ROOT_DIR = /usr/local/tools
160 ifeq ($(HOSTARCH),$(ARCH))
164 #BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386
165 #BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386
166 BFD_ROOT_DIR = /opt/powerpc
170 ifeq ($(PCI_CLOCK),PCI_66M)
171 CFLAGS := $(CFLAGS) -DPCI_66M
174 #########################################################################
176 export CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \
177 AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \
179 export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
181 #########################################################################
184 $(CPP) $(AFLAGS) -o $@ $(CURDIR)/$<
186 $(CC) $(AFLAGS) -c -o $@ $(CURDIR)/$<
188 $(CC) $(CFLAGS) -c -o $@ $<
190 #########################################################################