xref: /openbmc/u-boot/arch/powerpc/config.mk (revision f13606b7)
1#
2# (C) Copyright 2000-2010
3# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4#
5# SPDX-License-Identifier:	GPL-2.0+
6#
7
8ifeq ($(CROSS_COMPILE),)
9CROSS_COMPILE := ppc_8xx-
10endif
11
12CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000
13LDFLAGS_FINAL += --gc-sections
14LDFLAGS_FINAL += --bss-plt
15PLATFORM_RELFLAGS += -fpic -mrelocatable -ffunction-sections -fdata-sections \
16								-meabi
17PLATFORM_CPPFLAGS += -D__powerpc__ -ffixed-r2
18PLATFORM_LDFLAGS  += -n
19
20# Support generic board on PPC
21__HAVE_ARCH_GENERIC_BOARD := y
22
23#
24# When cross-compiling on NetBSD, we have to define __PPC__ or else we
25# will pick up a va_list declaration that is incompatible with the
26# actual argument lists emitted by the compiler.
27#
28# [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3]
29
30ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
31PLATFORM_CPPFLAGS+= -D__PPC__
32endif
33ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
34PLATFORM_CPPFLAGS+= -D__PPC__
35endif
36
37# Only test once
38ifneq ($(CONFIG_SPL_BUILD),y)
39archprepare: checkgcc4
40
41# GCC 3.x is reported to have problems generating the type of relocation
42# that U-Boot wants.
43# See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html
44checkgcc4:
45	@if test $(call cc-version) -lt 0400; then \
46		echo -n '*** Your GCC is too old, please upgrade to GCC 4.x or newer'; \
47		false; \
48	fi
49endif
50