1# 2# (C) Copyright 2000-2002 3# Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4# 5# SPDX-License-Identifier: GPL-2.0+ 6# 7 8CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000 9 10PLATFORM_CPPFLAGS += -fno-strict-aliasing 11PLATFORM_CPPFLAGS += -fomit-frame-pointer 12PF_CPPFLAGS_X86 := $(call cc-option, -fno-toplevel-reorder, \ 13 $(call cc-option, -fno-unit-at-a-time)) 14 15PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_X86) 16PLATFORM_CPPFLAGS += -fno-dwarf2-cfi-asm 17 18ifdef CONFIG_SPL_BUILD 19IS_32BIT := y 20else 21ifndef CONFIG_X86_64 22IS_32BIT := y 23endif 24endif 25 26ifeq ($(IS_32BIT),y) 27PLATFORM_CPPFLAGS += -march=i386 -m32 28else 29PLATFORM_CPPFLAGS += $(if $(CONFIG_SPL_BUILD),,-fpic) -fno-common -m64 30endif 31 32PLATFORM_RELFLAGS += -ffunction-sections -fvisibility=hidden 33 34PLATFORM_LDFLAGS += -Bsymbolic -Bsymbolic-functions 35PLATFORM_LDFLAGS += -m $(if $(IS_32BIT),elf_i386,elf_x86_64) 36 37LDFLAGS_FINAL += --wrap=__divdi3 --wrap=__udivdi3 38LDFLAGS_FINAL += --wrap=__moddi3 --wrap=__umoddi3 39 40# This is used in the top-level Makefile which does not include 41# PLATFORM_LDFLAGS 42LDFLAGS_EFI_PAYLOAD := -Bsymbolic -Bsymbolic-functions -shared --no-undefined 43 44OBJCOPYFLAGS_EFI := -j .text -j .sdata -j .data -j .dynamic -j .dynsym \ 45 -j .rel -j .rela -j .reloc 46 47ifeq ($(IS_32BIT),y) 48CFLAGS_NON_EFI := -mregparm=3 49endif 50CFLAGS_EFI := -fpic -fshort-wchar 51 52ifeq ($(CONFIG_EFI_STUB_64BIT),) 53CFLAGS_EFI += $(call cc-option, -mno-red-zone) 54EFIARCH = ia32 55EFIPAYLOAD_BFDTARGET = elf32-i386 56else 57EFIARCH = x86_64 58EFIPAYLOAD_BFDTARGET = elf64-x86-64 59endif 60 61EFIPAYLOAD_BFDARCH = i386 62 63LDSCRIPT_EFI := $(srctree)/arch/x86/lib/elf_$(EFIARCH)_efi.lds 64EFISTUB := crt0_$(EFIARCH)_efi.o reloc_$(EFIARCH)_efi.o 65OBJCOPYFLAGS_EFI += --target=efi-app-$(EFIARCH) 66 67CPPFLAGS_REMOVE_crt0-efi-$(EFIARCH).o += $(CFLAGS_NON_EFI) 68CPPFLAGS_crt0-efi-$(EFIARCH).o += $(CFLAGS_EFI) 69 70ifeq ($(CONFIG_EFI_APP),y) 71 72PLATFORM_CPPFLAGS += $(CFLAGS_EFI) 73LDFLAGS_FINAL += -znocombreloc -shared 74LDSCRIPT := $(LDSCRIPT_EFI) 75 76else 77 78PLATFORM_CPPFLAGS += $(CFLAGS_NON_EFI) 79PLATFORM_LDFLAGS += --emit-relocs 80LDFLAGS_FINAL += --gc-sections $(if $(CONFIG_SPL_BUILD),,-pie) 81 82endif 83 84ifdef CONFIG_X86_64 85ifndef CONFIG_SPL_BUILD 86PLATFORM_CPPFLAGS += -D__x86_64__ 87else 88PLATFORM_CPPFLAGS += -D__I386__ 89endif 90else 91PLATFORM_CPPFLAGS += -D__I386__ 92endif 93 94ifneq ($(CONFIG_EFI_STUB)$(CONFIG_CMD_BOOTEFI_HELLO_COMPILE),) 95 96ifneq ($(CONFIG_EFI_STUB_64BIT),) 97EFI_LDS := elf_x86_64_efi.lds 98EFI_CRT0 := crt0_x86_64_efi.o 99EFI_RELOC := reloc_x86_64_efi.o 100EFI_TARGET := --target=efi-app-ia32 101else 102EFI_LDS := elf_ia32_efi.lds 103EFI_CRT0 := crt0_ia32_efi.o 104EFI_RELOC := reloc_ia32_efi.o 105EFI_TARGET := --target=efi-app-x86_64 106endif 107 108endif 109