1# SPDX-License-Identifier: GPL-2.0+ 2# 3# (C) Copyright 2003 4# Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5 6ifdef CONFIG_SYS_BIG_ENDIAN 732bit-emul := elf32btsmip 864bit-emul := elf64btsmip 932bit-bfd := elf32-tradbigmips 1064bit-bfd := elf64-tradbigmips 11PLATFORM_CPPFLAGS += -EB 12PLATFORM_LDFLAGS += -EB 13endif 14 15ifdef CONFIG_SYS_LITTLE_ENDIAN 1632bit-emul := elf32ltsmip 1764bit-emul := elf64ltsmip 1832bit-bfd := elf32-tradlittlemips 1964bit-bfd := elf64-tradlittlemips 20PLATFORM_CPPFLAGS += -EL 21PLATFORM_LDFLAGS += -EL 22endif 23 24ifdef CONFIG_32BIT 25PLATFORM_CPPFLAGS += -mabi=32 26PLATFORM_LDFLAGS += -m $(32bit-emul) 27OBJCOPYFLAGS += -O $(32bit-bfd) 28endif 29 30ifdef CONFIG_64BIT 31PLATFORM_CPPFLAGS += -mabi=64 32PLATFORM_LDFLAGS += -m$(64bit-emul) 33OBJCOPYFLAGS += -O $(64bit-bfd) 34endif 35 36PLATFORM_CPPFLAGS += -D__MIPS__ 37PLATFORM_ELFENTRY = "__start" 38PLATFORM_ELFFLAGS += -B mips $(OBJCOPYFLAGS) 39 40# 41# From Linux arch/mips/Makefile 42# 43# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel 44# code since it only slows down the whole thing. At some point we might make 45# use of global pointer optimizations but their use of $28 conflicts with 46# the current pointer optimization. 47# 48# The DECStation requires an ECOFF kernel for remote booting, other MIPS 49# machines may also. Since BFD is incredibly buggy with respect to 50# crossformat linking we rely on the elf2ecoff tool for format conversion. 51# 52# cflags-y += -G 0 -mno-abicalls -fno-pic -pipe 53# cflags-y += -msoft-float 54# LDFLAGS_vmlinux += -G 0 -static -n -nostdlib 55# MODFLAGS += -mlong-calls 56# 57ifndef CONFIG_SPL_BUILD 58OBJCOPYFLAGS += -j .data.reloc -j .dtb.init.rodata 59LDFLAGS_FINAL += --emit-relocs 60endif 61 62PLATFORM_CPPFLAGS += -G 0 -mno-abicalls -fno-pic 63PLATFORM_CPPFLAGS += -msoft-float 64PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib 65PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections 66LDFLAGS_FINAL += --gc-sections 67OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list 68