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 PLATFORM_CPPFLAGS += -DCONFIG_ARM -D__ARM__
28 # Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
29 PLATFORM_CPPFLAGS += $(call cc-option,-marm,)
31 # Try if EABI is supported, else fall back to old API,
33 # - with ELDK 4.2 (EABI supported), use:
34 # -mabi=aapcs-linux -mno-thumb-interwork
35 # - with ELDK 4.1 (gcc 4.x, no EABI), use:
36 # -mabi=apcs-gnu -mno-thumb-interwork
37 # - with ELDK 3.1 (gcc 3.x), use:
38 # -mapcs-32 -mno-thumb-interwork
39 PLATFORM_CPPFLAGS += $(call cc-option,\
40 -mabi=aapcs-linux -mno-thumb-interwork,\
46 ) $(call cc-option,-mno-thumb-interwork,)\
49 # For EABI, make sure to provide raise()
50 ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
51 # This file is parsed several times; make sure to add only once.
52 ifeq (,$(findstring lib_arm/eabi_compat.o,$(PLATFORM_LIBS)))
53 PLATFORM_LIBS += $(OBJTREE)/lib_arm/eabi_compat.o
56 LDSCRIPT := $(SRCTREE)/cpu/$(CPU)/u-boot.lds