2 # (C) Copyright 2000-2002
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 CROSS_COMPILE ?
= arm-linux-
26 ifndef CONFIG_STANDALONE_LOAD_ADDR
28 CONFIG_STANDALONE_LOAD_ADDR
= 0x80300000
30 CONFIG_STANDALONE_LOAD_ADDR
= 0xc100000
34 PLATFORM_CPPFLAGS
+= -DCONFIG_ARM
-D__ARM__
36 # Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
37 PLATFORM_CPPFLAGS
+= $(call cc-option
,-marm
,)
39 # Try if EABI is supported, else fall back to old API,
41 # - with ELDK 4.2 (EABI supported), use:
42 # -mabi=aapcs-linux -mno-thumb-interwork
43 # - with ELDK 4.1 (gcc 4.x, no EABI), use:
44 # -mabi=apcs-gnu -mno-thumb-interwork
45 # - with ELDK 3.1 (gcc 3.x), use:
46 # -mapcs-32 -mno-thumb-interwork
47 PLATFORM_CPPFLAGS
+= $(call cc-option
,\
48 -mabi
=aapcs-linux
-mno-thumb-interwork
,\
54 ) $(call cc-option
,-mno-thumb-interwork
,)\
57 # For EABI, make sure to provide raise()
58 ifneq (,$(findstring -mabi
=aapcs-linux
,$(PLATFORM_CPPFLAGS
)))
59 # This file is parsed several times; make sure to add only once.
60 ifeq (,$(findstring arch
/arm
/lib
/eabi_compat.o
,$(PLATFORM_LIBS
)))
61 PLATFORM_LIBS
+= $(OBJTREE
)/arch
/arm
/lib
/eabi_compat.o
64 LDSCRIPT
:= $(SRCTREE
)/$(CPUDIR
)/u-boot.lds
66 # needed for relocation
67 ifndef CONFIG_NAND_SPL
68 LDFLAGS_u-boot
+= -pie