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
147 AFLAGS
:= $(AFLAGS_DEBUG
) -D__ASSEMBLY__
$(CPPFLAGS
)
149 LDFLAGS
+= -Bstatic
-T
$(LDSCRIPT
) -Ttext
$(TEXT_BASE
) $(PLATFORM_LDFLAGS
)
151 # Location of a usable BFD library, where we define "usable" as
152 # "built for ${HOST}, supports ${TARGET}". Sensible values are
153 # - When cross-compiling: the root of the cross-environment
154 # - Linux/ppc (native): /usr
155 # - NetBSD/ppc (native): you lose ... (must extract these from the
156 # binutils build directory, plus the native and U-Boot include
157 # files don't like each other)
159 # So far, this is used only by tools/gdb/Makefile.
161 ifeq ($(HOSTOS
)-$(HOSTARCH
),darwin-ppc
)
162 BFD_ROOT_DIR
= /usr
/local
/tools
164 ifeq ($(HOSTARCH
),$(ARCH
))
168 #BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386
169 #BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386
170 BFD_ROOT_DIR
= /opt
/powerpc
174 ifeq ($(PCI_CLOCK
),PCI_66M
)
175 CFLAGS
:= $(CFLAGS
) -DPCI_66M
178 #########################################################################
180 export CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \
181 AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \
183 export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
185 #########################################################################
188 $(CPP
) $(AFLAGS
) -o
$@
$(CURDIR
)/$<
190 $(CC
) $(AFLAGS
) -c
-o
$@
$(CURDIR
)/$<
192 $(CC
) $(CFLAGS
) -c
-o
$@
$<
194 #########################################################################