config.mk 2.7 KB

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