xref: /openbmc/u-boot/arch/powerpc/config.mk (revision 6d97dc10)
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 ($(CROSS_COMPILE),)
9CROSS_COMPILE := ppc_8xx-
10endif
11
12CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000
13LDFLAGS_FINAL += --gc-sections
14LDFLAGS_FINAL += --bss-plt
15PLATFORM_RELFLAGS += -fpic -mrelocatable -ffunction-sections \
16-fdata-sections -mcall-linux
17
18PLATFORM_CPPFLAGS += -D__powerpc__ -ffixed-r2 -m32
19PLATFORM_LDFLAGS  += -m32 -melf32ppclinux
20
21#
22# When cross-compiling on NetBSD, we have to define __PPC__ or else we
23# will pick up a va_list declaration that is incompatible with the
24# actual argument lists emitted by the compiler.
25#
26# [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3]
27
28ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
29PLATFORM_CPPFLAGS+= -D__PPC__
30endif
31ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
32PLATFORM_CPPFLAGS+= -D__PPC__
33endif
34
35# Only test once
36ifneq ($(CONFIG_SPL_BUILD),y)
37archprepare: checkgcc4
38
39# GCC 3.x is reported to have problems generating the type of relocation
40# that U-Boot wants.
41# See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html
42checkgcc4:
43	@if test $(call cc-version) -lt 0400; then \
44		echo -n '*** Your GCC is too old, please upgrade to GCC 4.x or newer'; \
45		false; \
46	fi
47endif
48