# # (C) Copyright 2003 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. # # SPDX-License-Identifier: GPL-2.0+ # ifdef CONFIG_SYS_BIG_ENDIAN 32bit-emul := elf32btsmip 64bit-emul := elf64btsmip 32bit-bfd := elf32-tradbigmips 64bit-bfd := elf64-tradbigmips PLATFORM_CPPFLAGS += -EB PLATFORM_LDFLAGS += -EB endif ifdef CONFIG_SYS_LITTLE_ENDIAN 32bit-emul := elf32ltsmip 64bit-emul := elf64ltsmip 32bit-bfd := elf32-tradlittlemips 64bit-bfd := elf64-tradlittlemips PLATFORM_CPPFLAGS += -EL PLATFORM_LDFLAGS += -EL endif ifdef CONFIG_32BIT PLATFORM_CPPFLAGS += -mabi=32 PLATFORM_LDFLAGS += -m $(32bit-emul) OBJCOPYFLAGS += -O $(32bit-bfd) endif ifdef CONFIG_64BIT PLATFORM_CPPFLAGS += -mabi=64 PLATFORM_LDFLAGS += -m$(64bit-emul) OBJCOPYFLAGS += -O $(64bit-bfd) endif cpuflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,-mips32 cpuflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,-mips32r2 cpuflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,-mips64 cpuflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,-mips64r2 PLATFORM_CPPFLAGS += $(cpuflags-y) PLATFORM_CPPFLAGS += -D__MIPS__ # # From Linux arch/mips/Makefile # # GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel # code since it only slows down the whole thing. At some point we might make # use of global pointer optimizations but their use of $28 conflicts with # the current pointer optimization. # # The DECStation requires an ECOFF kernel for remote booting, other MIPS # machines may also. Since BFD is incredibly buggy with respect to # crossformat linking we rely on the elf2ecoff tool for format conversion. # # cflags-y += -G 0 -mno-abicalls -fno-pic -pipe # cflags-y += -msoft-float # LDFLAGS_vmlinux += -G 0 -static -n -nostdlib # MODFLAGS += -mlong-calls # # On the other hand, we want PIC in the U-Boot code to relocate it from ROM # to RAM. $28 is always used as gp. # PLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic PLATFORM_CPPFLAGS += -msoft-float PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections LDFLAGS_FINAL += --gc-sections -pie OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .got OBJCOPYFLAGS += -j .u_boot_list -j .rel.dyn -j .padding