2 # (C) Copyright 2000-2006
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 ($(CROSS_COMPILE
),powerpc-openbsd-
)
68 PLATFORM_CPPFLAGS
+= -D__ARM__
72 ifeq ($(ARCH
),blackfin
)
73 PLATFORM_CPPFLAGS
+= -D__BLACKFIN__
-mno-underscore
77 sinclude
$(TOPDIR
)/$(ARCH
)_config.mk
# include architecture dependend rules
80 sinclude
$(TOPDIR
)/cpu
/$(CPU
)/config.mk
# include CPU specific rules
83 sinclude
$(TOPDIR
)/cpu
/$(CPU
)/$(SOC
)/config.mk
# include SoC specific rules
86 BOARDDIR
= $(VENDOR
)/$(BOARD
)
91 sinclude
$(TOPDIR
)/board
/$(BOARDDIR
)/config.mk
# include board specific rules
94 #########################################################################
96 CONFIG_SHELL
:= $(shell if
[ -x
"$$BASH" ]; then echo
$$BASH; \
97 else if
[ -x
/bin
/bash
]; then echo
/bin
/bash
; \
98 else echo sh
; fi
; fi
)
100 ifeq ($(HOSTOS
)-$(HOSTARCH
),darwin-ppc
)
105 HOSTCFLAGS
= -Wall
-Wstrict-prototypes
-O2
-fomit-frame-pointer
108 #########################################################################
110 # Option checker (courtesy linux kernel) to ensure
111 # only supported compiler options are used
113 cc-option
= $(shell if
$(CC
) $(CFLAGS
) $(1) -S
-o
/dev
/null
-xc
/dev
/null \
114 > /dev
/null
2>&1; then echo
"$(1)"; else echo
"$(2)"; fi
;)
117 # Include the make variables (CC, etc...)
119 AS
= $(CROSS_COMPILE
)as
120 LD
= $(CROSS_COMPILE
)ld
121 CC
= $(CROSS_COMPILE
)gcc
123 AR
= $(CROSS_COMPILE
)ar
124 NM
= $(CROSS_COMPILE
)nm
125 STRIP
= $(CROSS_COMPILE
)strip
126 OBJCOPY
= $(CROSS_COMPILE
)objcopy
127 OBJDUMP
= $(CROSS_COMPILE
)objdump
128 RANLIB
= $(CROSS_COMPILE
)RANLIB
130 RELFLAGS
= $(PLATFORM_RELFLAGS
)
131 DBGFLAGS
= -g
# -DDEBUG
132 OPTFLAGS
= -Os
#-fomit-frame-pointer
134 #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
135 LDSCRIPT
:= $(TOPDIR
)/board
/$(BOARDDIR
)/u-boot.lds
137 OBJCFLAGS
+= --gap-fill
=0xff
139 gccincdir
:= $(shell $(CC
) -print-file-name
=include)
141 CPPFLAGS
:= $(DBGFLAGS
) $(OPTFLAGS
) $(RELFLAGS
) \
142 -D__KERNEL__
-DTEXT_BASE
=$(TEXT_BASE
) \
144 ifneq ($(OBJTREE
),$(SRCTREE
))
145 CPPFLAGS
+= -I
$(OBJTREE
)/include2
-I
$(OBJTREE
)/include
148 CPPFLAGS
+= -I
$(TOPDIR
)/include
149 CPPFLAGS
+= -fno-builtin
-ffreestanding
-nostdinc \
150 -isystem
$(gccincdir
) -pipe
$(PLATFORM_CPPFLAGS
)
153 CFLAGS
:= $(CPPFLAGS
) -Wall
-Wstrict-prototypes \
154 -DBUILD_TAG
='"$(BUILD_TAG)"'
156 CFLAGS
:= $(CPPFLAGS
) -Wall
-Wstrict-prototypes
159 # avoid trigraph warnings while parsing pci.h (produced by NIOS gcc-2.9)
160 # this option have to be placed behind -Wall -- that's why it is here
162 ifeq ($(findstring 2.9,$(shell $(CC
) --version
)),2.9)
163 CFLAGS
:= $(CPPFLAGS
) -Wall
-Wno-trigraphs
167 AFLAGS_DEBUG
:= -Wa
,-gstabs
169 # turn jbsr into jsr for m68k
171 ifeq ($(findstring 3.4,$(shell $(CC
) --version
)),3.4)
172 AFLAGS_DEBUG
:= -Wa
,-gstabs
,-S
176 AFLAGS
:= $(AFLAGS_DEBUG
) -D__ASSEMBLY__
$(CPPFLAGS
)
178 LDFLAGS
+= -Bstatic
-T
$(LDSCRIPT
) -Ttext
$(TEXT_BASE
) $(PLATFORM_LDFLAGS
)
180 # Location of a usable BFD library, where we define "usable" as
181 # "built for ${HOST}, supports ${TARGET}". Sensible values are
182 # - When cross-compiling: the root of the cross-environment
183 # - Linux/ppc (native): /usr
184 # - NetBSD/ppc (native): you lose ... (must extract these from the
185 # binutils build directory, plus the native and U-Boot include
186 # files don't like each other)
188 # So far, this is used only by tools/gdb/Makefile.
190 ifeq ($(HOSTOS
)-$(HOSTARCH
),darwin-ppc
)
191 BFD_ROOT_DIR
= /usr
/local
/tools
193 ifeq ($(HOSTARCH
),$(ARCH
))
197 #BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386
198 #BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386
199 BFD_ROOT_DIR
= /opt
/powerpc
203 ifeq ($(PCI_CLOCK
),PCI_66M
)
204 CFLAGS
:= $(CFLAGS
) -DPCI_66M
207 #########################################################################
209 export CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \
210 AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \
212 export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
214 #########################################################################
219 $(CPP
) $(AFLAGS
) -o
$@
$<
221 $(CC
) $(AFLAGS
) -c
-o
$@
$<
223 $(CC
) $(CFLAGS
) -c
-o
$@
$<
228 $(CPP
) $(AFLAGS
) -o
$@
$<
230 $(CC
) $(AFLAGS
) -c
-o
$@
$<
232 $(CC
) $(CFLAGS
) -c
-o
$@
$<
235 #########################################################################