| # | |
| # (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 | |
| PLATFORM_CPPFLAGS += -D__MIPS__ | |
| PLATFORM_ELFENTRY = "__start" | |
| PLATFORM_ELFFLAGS += -B mips $(OBJCOPYFLAGS) | |
| # | |
| # 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 | |
| # | |
| ifndef CONFIG_SPL_BUILD | |
| OBJCOPYFLAGS += -j .got -j .rel -j .padding -j .dtb.init.rodata | |
| LDFLAGS_FINAL += --emit-relocs | |
| endif | |
| PLATFORM_CPPFLAGS += -G 0 -mno-abicalls -fno-pic | |
| PLATFORM_CPPFLAGS += -msoft-float | |
| PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib | |
| PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections | |
| LDFLAGS_FINAL += --gc-sections | |
| OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list |