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 8837cad1eSDaniel Schwierzeckifdef CONFIG_SYS_BIG_ENDIAN 9837cad1eSDaniel Schwierzeck32bit-emul := elf32btsmip 10837cad1eSDaniel Schwierzeck64bit-emul := elf64btsmip 11837cad1eSDaniel Schwierzeck32bit-bfd := elf32-tradbigmips 12837cad1eSDaniel Schwierzeck64bit-bfd := elf64-tradbigmips 13837cad1eSDaniel SchwierzeckPLATFORM_CPPFLAGS += -EB 14837cad1eSDaniel SchwierzeckPLATFORM_LDFLAGS += -EB 152c0e3de3SDaniel Schwierzeckendif 162c0e3de3SDaniel Schwierzeck 172c0e3de3SDaniel Schwierzeckifdef CONFIG_SYS_LITTLE_ENDIAN 18837cad1eSDaniel Schwierzeck32bit-emul := elf32ltsmip 19837cad1eSDaniel Schwierzeck64bit-emul := elf64ltsmip 20837cad1eSDaniel Schwierzeck32bit-bfd := elf32-tradlittlemips 21837cad1eSDaniel Schwierzeck64bit-bfd := elf64-tradlittlemips 22837cad1eSDaniel SchwierzeckPLATFORM_CPPFLAGS += -EL 23837cad1eSDaniel SchwierzeckPLATFORM_LDFLAGS += -EL 242c0e3de3SDaniel Schwierzeckendif 252c0e3de3SDaniel Schwierzeck 26837cad1eSDaniel Schwierzeckifdef CONFIG_32BIT 27837cad1eSDaniel SchwierzeckPLATFORM_CPPFLAGS += -mabi=32 28837cad1eSDaniel SchwierzeckPLATFORM_LDFLAGS += -m $(32bit-emul) 29837cad1eSDaniel SchwierzeckOBJCOPYFLAGS += -O $(32bit-bfd) 302c0e3de3SDaniel Schwierzeckendif 312c0e3de3SDaniel Schwierzeck 32837cad1eSDaniel Schwierzeckifdef CONFIG_64BIT 33837cad1eSDaniel SchwierzeckPLATFORM_CPPFLAGS += -mabi=64 34837cad1eSDaniel SchwierzeckPLATFORM_LDFLAGS += -m$(64bit-emul) 35837cad1eSDaniel SchwierzeckOBJCOPYFLAGS += -O $(64bit-bfd) 36837cad1eSDaniel Schwierzeckendif 37837cad1eSDaniel Schwierzeck 3890f984e3SMasahiro YamadaPLATFORM_CPPFLAGS += -D__MIPS__ 3947cf465cSÁlvaro Fernández RojasPLATFORM_ELFENTRY = "__start" 4047cf465cSÁlvaro Fernández RojasPLATFORM_ELFFLAGS += -B mips $(OBJCOPYFLAGS) 41ea0364f1SPeter Tyser 42ea0364f1SPeter Tyser# 43ea0364f1SPeter Tyser# From Linux arch/mips/Makefile 44ea0364f1SPeter Tyser# 45ea0364f1SPeter Tyser# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel 46ea0364f1SPeter Tyser# code since it only slows down the whole thing. At some point we might make 47ea0364f1SPeter Tyser# use of global pointer optimizations but their use of $28 conflicts with 48ea0364f1SPeter Tyser# the current pointer optimization. 49ea0364f1SPeter Tyser# 50ea0364f1SPeter Tyser# The DECStation requires an ECOFF kernel for remote booting, other MIPS 51ea0364f1SPeter Tyser# machines may also. Since BFD is incredibly buggy with respect to 52ea0364f1SPeter Tyser# crossformat linking we rely on the elf2ecoff tool for format conversion. 53ea0364f1SPeter Tyser# 54ea0364f1SPeter Tyser# cflags-y += -G 0 -mno-abicalls -fno-pic -pipe 55ea0364f1SPeter Tyser# cflags-y += -msoft-float 56ea0364f1SPeter Tyser# LDFLAGS_vmlinux += -G 0 -static -n -nostdlib 57ea0364f1SPeter Tyser# MODFLAGS += -mlong-calls 58ea0364f1SPeter Tyser# 59*703ec9ddSPaul Burtonifndef CONFIG_SPL_BUILD 60*703ec9ddSPaul BurtonOBJCOPYFLAGS += -j .got -j .rel -j .padding -j .dtb.init.rodata 61*703ec9ddSPaul BurtonLDFLAGS_FINAL += --emit-relocs 62e92d9124SDaniel Schwierzeckendif 63e92d9124SDaniel Schwierzeck 64*703ec9ddSPaul BurtonPLATFORM_CPPFLAGS += -G 0 -mno-abicalls -fno-pic 65ea0364f1SPeter TyserPLATFORM_CPPFLAGS += -msoft-float 66837cad1eSDaniel SchwierzeckPLATFORM_LDFLAGS += -G 0 -static -n -nostdlib 67660da094SDaniel SchwierzeckPLATFORM_RELFLAGS += -ffunction-sections -fdata-sections 68*703ec9ddSPaul BurtonLDFLAGS_FINAL += --gc-sections 6907f5b966SDaniel SchwierzeckOBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list 70