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 $(call cc-option, -mpreferred-stack-boundary=2) 15 16PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_X86) 17PLATFORM_CPPFLAGS += -fno-dwarf2-cfi-asm 18PLATFORM_CPPFLAGS += -march=i386 -m32 19 20PLATFORM_RELFLAGS += -ffunction-sections -fvisibility=hidden 21 22PLATFORM_LDFLAGS += -Bsymbolic -Bsymbolic-functions -m elf_i386 23 24LDFLAGS_FINAL += --wrap=__divdi3 --wrap=__udivdi3 25LDFLAGS_FINAL += --wrap=__moddi3 --wrap=__umoddi3 26 27# This is used in the top-level Makefile which does not include 28# PLATFORM_LDFLAGS 29LDFLAGS_EFI_PAYLOAD := -Bsymbolic -Bsymbolic-functions -shared --no-undefined 30 31OBJCOPYFLAGS_EFI := -j .text -j .sdata -j .data -j .dynamic -j .dynsym \ 32 -j .rel -j .rela -j .reloc 33 34CFLAGS_NON_EFI := -mregparm=3 35CFLAGS_EFI := -fpic -fshort-wchar 36 37ifeq ($(CONFIG_EFI_STUB_64BIT),) 38CFLAGS_EFI += $(call cc-option, -mno-red-zone) 39EFIARCH = ia32 40EFIPAYLOAD_BFDTARGET = elf32-i386 41else 42EFIARCH = x86_64 43EFIPAYLOAD_BFDTARGET = elf64-x86-64 44endif 45 46EFIPAYLOAD_BFDARCH = i386 47 48LDSCRIPT_EFI := $(srctree)/arch/x86/lib/elf_$(EFIARCH)_efi.lds 49EFISTUB := crt0_$(EFIARCH)_efi.o reloc_$(EFIARCH)_efi.o 50OBJCOPYFLAGS_EFI += --target=efi-app-$(EFIARCH) 51 52CPPFLAGS_REMOVE_crt0-efi-$(EFIARCH).o += $(CFLAGS_NON_EFI) 53CPPFLAGS_crt0-efi-$(EFIARCH).o += $(CFLAGS_EFI) 54 55ifeq ($(CONFIG_EFI_APP),y) 56 57PLATFORM_CPPFLAGS += $(CFLAGS_EFI) 58LDFLAGS_FINAL += -znocombreloc -shared 59LDSCRIPT := $(LDSCRIPT_EFI) 60 61else 62 63PLATFORM_CPPFLAGS += $(CFLAGS_NON_EFI) 64PLATFORM_LDFLAGS += --emit-relocs 65LDFLAGS_FINAL += --gc-sections -pie 66 67endif 68 69ifneq ($(CONFIG_EFI_STUB)$(CONFIG_CMD_BOOTEFI_HELLO_COMPILE),) 70 71ifneq ($(CONFIG_EFI_STUB_64BIT),) 72EFI_LDS := elf_x86_64_efi.lds 73EFI_CRT0 := crt0_x86_64_efi.o 74EFI_RELOC := reloc_x86_64_efi.o 75EFI_TARGET := --target=efi-app-ia32 76else 77EFI_LDS := elf_ia32_efi.lds 78EFI_CRT0 := crt0_ia32_efi.o 79EFI_RELOC := reloc_ia32_efi.o 80EFI_TARGET := --target=efi-app-x86_64 81endif 82 83endif 84