git.sur5r.net Git - u-boot/blob - arch/x86/config.mk

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