1# 2# (C) Copyright 2003 3# Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4# 5# SPDX-License-Identifier: GPL-2.0+ 6# 7 8CROSS_COMPILE ?= mips_4KC- 9 10# Handle special prefix in ELDK 4.0 toolchain 11ifneq (,$(findstring 4KCle,$(CROSS_COMPILE))) 12ENDIANNESS := -EL 13endif 14 15ifdef CONFIG_SYS_LITTLE_ENDIAN 16ENDIANNESS := -EL 17endif 18 19ifdef CONFIG_SYS_BIG_ENDIAN 20ENDIANNESS := -EB 21endif 22 23# Default to EB if no endianess is configured 24ENDIANNESS ?= -EB 25 26PLATFORM_CPPFLAGS += -DCONFIG_MIPS -D__MIPS__ 27 28# 29# From Linux arch/mips/Makefile 30# 31# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel 32# code since it only slows down the whole thing. At some point we might make 33# use of global pointer optimizations but their use of $28 conflicts with 34# the current pointer optimization. 35# 36# The DECStation requires an ECOFF kernel for remote booting, other MIPS 37# machines may also. Since BFD is incredibly buggy with respect to 38# crossformat linking we rely on the elf2ecoff tool for format conversion. 39# 40# cflags-y += -G 0 -mno-abicalls -fno-pic -pipe 41# cflags-y += -msoft-float 42# LDFLAGS_vmlinux += -G 0 -static -n -nostdlib 43# MODFLAGS += -mlong-calls 44# 45# On the other hand, we want PIC in the U-Boot code to relocate it from ROM 46# to RAM. $28 is always used as gp. 47# 48PLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic $(ENDIANNESS) 49PLATFORM_CPPFLAGS += -msoft-float 50PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib $(ENDIANNESS) 51PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections 52LDFLAGS_FINAL += --gc-sections -pie 53OBJCFLAGS += --remove-section=.dynsym 54