1ea0364f1SPeter Tyser# 2ea0364f1SPeter Tyser# (C) Copyright 2003 3ea0364f1SPeter Tyser# Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4ea0364f1SPeter Tyser# 51a459660SWolfgang Denk# SPDX-License-Identifier: GPL-2.0+ 6ea0364f1SPeter Tyser# 7ea0364f1SPeter Tyser 89b6e2c36SMasahiro Yamadaifeq ($(CROSS_COMPILE),) 99b6e2c36SMasahiro YamadaCROSS_COMPILE := mips_4KC- 109b6e2c36SMasahiro Yamadaendif 11ea0364f1SPeter Tyser 122c0e3de3SDaniel Schwierzeck# Handle special prefix in ELDK 4.0 toolchain 132c0e3de3SDaniel Schwierzeckifneq (,$(findstring 4KCle,$(CROSS_COMPILE))) 142c0e3de3SDaniel SchwierzeckENDIANNESS := -EL 152c0e3de3SDaniel Schwierzeckendif 162c0e3de3SDaniel Schwierzeck 172c0e3de3SDaniel Schwierzeckifdef CONFIG_SYS_LITTLE_ENDIAN 182c0e3de3SDaniel SchwierzeckENDIANNESS := -EL 192c0e3de3SDaniel Schwierzeckendif 202c0e3de3SDaniel Schwierzeck 212c0e3de3SDaniel Schwierzeckifdef CONFIG_SYS_BIG_ENDIAN 222c0e3de3SDaniel SchwierzeckENDIANNESS := -EB 232c0e3de3SDaniel Schwierzeckendif 242c0e3de3SDaniel Schwierzeck 252c0e3de3SDaniel Schwierzeck# Default to EB if no endianess is configured 262c0e3de3SDaniel SchwierzeckENDIANNESS ?= -EB 272c0e3de3SDaniel Schwierzeck 28*90f984e3SMasahiro YamadaPLATFORM_CPPFLAGS += -D__MIPS__ 29ea0364f1SPeter Tyser 309f0868ffSPaul Burton__HAVE_ARCH_GENERIC_BOARD := y 319f0868ffSPaul Burton 32ea0364f1SPeter Tyser# 33ea0364f1SPeter Tyser# From Linux arch/mips/Makefile 34ea0364f1SPeter Tyser# 35ea0364f1SPeter Tyser# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel 36ea0364f1SPeter Tyser# code since it only slows down the whole thing. At some point we might make 37ea0364f1SPeter Tyser# use of global pointer optimizations but their use of $28 conflicts with 38ea0364f1SPeter Tyser# the current pointer optimization. 39ea0364f1SPeter Tyser# 40ea0364f1SPeter Tyser# The DECStation requires an ECOFF kernel for remote booting, other MIPS 41ea0364f1SPeter Tyser# machines may also. Since BFD is incredibly buggy with respect to 42ea0364f1SPeter Tyser# crossformat linking we rely on the elf2ecoff tool for format conversion. 43ea0364f1SPeter Tyser# 44ea0364f1SPeter Tyser# cflags-y += -G 0 -mno-abicalls -fno-pic -pipe 45ea0364f1SPeter Tyser# cflags-y += -msoft-float 46ea0364f1SPeter Tyser# LDFLAGS_vmlinux += -G 0 -static -n -nostdlib 47ea0364f1SPeter Tyser# MODFLAGS += -mlong-calls 48ea0364f1SPeter Tyser# 49ea0364f1SPeter Tyser# On the other hand, we want PIC in the U-Boot code to relocate it from ROM 50ea0364f1SPeter Tyser# to RAM. $28 is always used as gp. 51ea0364f1SPeter Tyser# 522c0e3de3SDaniel SchwierzeckPLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic $(ENDIANNESS) 53ea0364f1SPeter TyserPLATFORM_CPPFLAGS += -msoft-float 542c0e3de3SDaniel SchwierzeckPLATFORM_LDFLAGS += -G 0 -static -n -nostdlib $(ENDIANNESS) 55660da094SDaniel SchwierzeckPLATFORM_RELFLAGS += -ffunction-sections -fdata-sections 5604380c65SGabor JuhosLDFLAGS_FINAL += --gc-sections -pie 5779fd7e64SDaniel SchwierzeckOBJCOPYFLAGS += -j .text -j .rodata -j .data -j .got 5879fd7e64SDaniel SchwierzeckOBJCOPYFLAGS += -j .u_boot_list -j .rel.dyn 59