1 # SPDX-License-Identifier: GPL-2.0+
3 # (C) Copyright 2000-2002
4 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 PLATFORM_CPPFLAGS += -fomit-frame-pointer
7 PF_CPPFLAGS_X86 := $(call cc-option, -fno-toplevel-reorder, \
8 $(call cc-option, -fno-unit-at-a-time))
10 PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_X86)
11 PLATFORM_CPPFLAGS += -fno-dwarf2-cfi-asm
13 ifdef CONFIG_SPL_BUILD
21 EFI_IS_32BIT := $(IS_32BIT)
22 ifdef CONFIG_EFI_STUB_64BIT
27 PLATFORM_CPPFLAGS += -march=i386 -m32
29 PLATFORM_CPPFLAGS += $(if $(CONFIG_SPL_BUILD),,-fpic) -fno-common -march=core2 -m64
30 PLATFORM_CPPFLAGS += -mno-mmx -mno-sse
33 PLATFORM_RELFLAGS += -fdata-sections -ffunction-sections -fvisibility=hidden
35 KBUILD_LDFLAGS += -Bsymbolic -Bsymbolic-functions
36 KBUILD_LDFLAGS += -m $(if $(IS_32BIT),elf_i386,elf_x86_64)
38 # This is used in the top-level Makefile which does not include
40 LDFLAGS_EFI_PAYLOAD := -Bsymbolic -Bsymbolic-functions -shared --no-undefined \
43 OBJCOPYFLAGS_EFI := -j .text -j .sdata -j .data -j .dynamic -j .dynsym \
44 -j .rel -j .rela -j .reloc --strip-all
46 # Compiler flags to be added when building UEFI applications
47 CFLAGS_EFI := -fpic -fshort-wchar
48 # Compiler flags to be removed when building UEFI applications
49 CFLAGS_NON_EFI := -mregparm=3 -fstack-protector-strong
52 EFIPAYLOAD_BFDARCH = i386
54 CFLAGS_EFI += $(call cc-option, -mno-red-zone)
55 EFIPAYLOAD_BFDARCH = x86_64
58 ifeq ($(EFI_IS_32BIT),y)
60 EFIPAYLOAD_BFDTARGET = elf32-i386
63 EFIPAYLOAD_BFDTARGET = elf64-x86-64
66 LDSCRIPT_EFI := $(srctree)/arch/x86/lib/elf_$(EFIARCH)_efi.lds
67 EFISTUB := crt0_$(EFIARCH)_efi.o reloc_$(EFIARCH)_efi.o
68 OBJCOPYFLAGS_EFI += --target=efi-app-$(EFIARCH)
70 CPPFLAGS_REMOVE_crt0-efi-$(EFIARCH).o += $(CFLAGS_NON_EFI)
71 CPPFLAGS_crt0-efi-$(EFIARCH).o += $(CFLAGS_EFI)
73 ifeq ($(CONFIG_EFI_APP),y)
75 PLATFORM_CPPFLAGS += $(CFLAGS_EFI)
76 LDFLAGS_FINAL += -znocombreloc -shared
77 LDSCRIPT := $(LDSCRIPT_EFI)
82 PLATFORM_CPPFLAGS += -mregparm=3
84 KBUILD_LDFLAGS += --emit-relocs
85 LDFLAGS_FINAL += --gc-sections $(if $(CONFIG_SPL_BUILD),,-pie)
90 ifndef CONFIG_SPL_BUILD
91 PLATFORM_CPPFLAGS += -D__x86_64__
93 PLATFORM_CPPFLAGS += -D__I386__
96 PLATFORM_CPPFLAGS += -D__I386__
101 ifdef CONFIG_EFI_STUB_64BIT
102 EFI_LDS := elf_x86_64_efi.lds
103 EFI_CRT0 := crt0_x86_64_efi.o
104 EFI_RELOC := reloc_x86_64_efi.o
106 EFI_LDS := elf_ia32_efi.lds
107 EFI_CRT0 := crt0_ia32_efi.o
108 EFI_RELOC := reloc_ia32_efi.o
114 EFI_LDS := elf_x86_64_efi.lds
115 EFI_CRT0 := crt0_x86_64_efi.o
116 EFI_RELOC := reloc_x86_64_efi.o
118 EFI_LDS := elf_ia32_efi.lds
119 EFI_CRT0 := crt0_ia32_efi.o
120 EFI_RELOC := reloc_ia32_efi.o
126 EFI_TARGET := --target=efi-app-x86_64
128 EFI_TARGET := --target=efi-app-ia32