1# SPDX-License-Identifier: GPL-2.0+ 2# 3# (C) Copyright 2000-2002 4# Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5 6CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000 7 8PLATFORM_CPPFLAGS += -fno-strict-aliasing 9PLATFORM_CPPFLAGS += -fomit-frame-pointer 10PF_CPPFLAGS_X86 := $(call cc-option, -fno-toplevel-reorder, \ 11 $(call cc-option, -fno-unit-at-a-time)) 12 13PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_X86) 14PLATFORM_CPPFLAGS += -fno-dwarf2-cfi-asm 15 16ifdef CONFIG_SPL_BUILD 17IS_32BIT := y 18else 19ifndef CONFIG_X86_64 20IS_32BIT := y 21endif 22endif 23 24ifeq ($(IS_32BIT),y) 25PLATFORM_CPPFLAGS += -march=i386 -m32 26else 27PLATFORM_CPPFLAGS += $(if $(CONFIG_SPL_BUILD),,-fpic) -fno-common -m64 28endif 29 30PLATFORM_RELFLAGS += -ffunction-sections -fvisibility=hidden 31 32PLATFORM_LDFLAGS += -Bsymbolic -Bsymbolic-functions 33PLATFORM_LDFLAGS += -m $(if $(IS_32BIT),elf_i386,elf_x86_64) 34 35# This is used in the top-level Makefile which does not include 36# PLATFORM_LDFLAGS 37LDFLAGS_EFI_PAYLOAD := -Bsymbolic -Bsymbolic-functions -shared --no-undefined 38 39OBJCOPYFLAGS_EFI := -j .text -j .sdata -j .data -j .dynamic -j .dynsym \ 40 -j .rel -j .rela -j .reloc 41 42ifeq ($(IS_32BIT),y) 43CFLAGS_NON_EFI := -mregparm=3 44endif 45CFLAGS_EFI := -fpic -fshort-wchar 46 47ifeq ($(CONFIG_EFI_STUB_64BIT),) 48CFLAGS_EFI += $(call cc-option, -mno-red-zone) 49EFIARCH = ia32 50EFIPAYLOAD_BFDTARGET = elf32-i386 51else 52EFIARCH = x86_64 53EFIPAYLOAD_BFDTARGET = elf64-x86-64 54endif 55 56EFIPAYLOAD_BFDARCH = i386 57 58LDSCRIPT_EFI := $(srctree)/arch/x86/lib/elf_$(EFIARCH)_efi.lds 59EFISTUB := crt0_$(EFIARCH)_efi.o reloc_$(EFIARCH)_efi.o 60OBJCOPYFLAGS_EFI += --target=efi-app-$(EFIARCH) 61 62CPPFLAGS_REMOVE_crt0-efi-$(EFIARCH).o += $(CFLAGS_NON_EFI) 63CPPFLAGS_crt0-efi-$(EFIARCH).o += $(CFLAGS_EFI) 64 65ifeq ($(CONFIG_EFI_APP),y) 66 67PLATFORM_CPPFLAGS += $(CFLAGS_EFI) 68LDFLAGS_FINAL += -znocombreloc -shared 69LDSCRIPT := $(LDSCRIPT_EFI) 70 71else 72 73PLATFORM_CPPFLAGS += $(CFLAGS_NON_EFI) 74PLATFORM_LDFLAGS += --emit-relocs 75LDFLAGS_FINAL += --gc-sections $(if $(CONFIG_SPL_BUILD),,-pie) 76 77endif 78 79ifdef CONFIG_X86_64 80ifndef CONFIG_SPL_BUILD 81PLATFORM_CPPFLAGS += -D__x86_64__ 82else 83PLATFORM_CPPFLAGS += -D__I386__ 84endif 85else 86PLATFORM_CPPFLAGS += -D__I386__ 87endif 88 89ifneq ($(CONFIG_EFI_STUB)$(CONFIG_CMD_BOOTEFI_HELLO_COMPILE),) 90 91ifneq ($(CONFIG_EFI_STUB_64BIT),) 92EFI_LDS := elf_x86_64_efi.lds 93EFI_CRT0 := crt0_x86_64_efi.o 94EFI_RELOC := reloc_x86_64_efi.o 95else 96EFI_LDS := elf_ia32_efi.lds 97EFI_CRT0 := crt0_ia32_efi.o 98EFI_RELOC := reloc_ia32_efi.o 99endif 100 101ifdef CONFIG_X86_64 102EFI_TARGET := --target=efi-app-x86_64 103else 104EFI_TARGET := --target=efi-app-ia32 105endif 106 107endif 108