1# SPDX-License-Identifier: GPL-2.0+ 2# 3# (C) Copyright 2000-2010 4# Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5 6ifeq ($(CROSS_COMPILE),) 7CROSS_COMPILE := ppc_8xx- 8endif 9 10CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000 11LDFLAGS_FINAL += --gc-sections 12LDFLAGS_FINAL += --bss-plt 13PLATFORM_RELFLAGS += -fpic -mrelocatable -ffunction-sections \ 14-fdata-sections -mcall-linux 15 16PF_CPPFLAGS_POWERPC := $(call cc-option,-fno-ira-hoist-pressure,) 17PLATFORM_CPPFLAGS += -D__powerpc__ -ffixed-r2 -m32 $(PF_CPPFLAGS_POWERPC) 18PLATFORM_LDFLAGS += -m32 -melf32ppclinux 19 20# 21# When cross-compiling on NetBSD, we have to define __PPC__ or else we 22# will pick up a va_list declaration that is incompatible with the 23# actual argument lists emitted by the compiler. 24# 25# [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3] 26 27ifeq ($(CROSS_COMPILE),powerpc-netbsd-) 28PLATFORM_CPPFLAGS+= -D__PPC__ 29endif 30ifeq ($(CROSS_COMPILE),powerpc-openbsd-) 31PLATFORM_CPPFLAGS+= -D__PPC__ 32endif 33 34# Only test once 35ifneq ($(CONFIG_SPL_BUILD),y) 36archprepare: checkgcc4 37 38# GCC 3.x is reported to have problems generating the type of relocation 39# that U-Boot wants. 40# See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html 41checkgcc4: 42 @if test "$(call cc-name)" = "gcc" -a \ 43 $(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