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Tom Rini83d290c2018-05-06 17:58:06 -04001# SPDX-License-Identifier: GPL-2.0+
wdenk2262cfe2002-11-18 00:14:45 +00002#
3# (C) Copyright 2000-2002
4# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
wdenk2262cfe2002-11-18 00:14:45 +00005
Wolfgang Denk8ae86b72011-02-04 14:25:17 +01006CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000
Mike Frysinger262ae0a2009-09-03 23:12:47 -04007
Graeme Russ5c161652010-10-07 20:03:23 +11008PLATFORM_CPPFLAGS += -fomit-frame-pointer
Masahiro Yamadaf6941832014-02-26 14:51:01 +09009PF_CPPFLAGS_X86 := $(call cc-option, -fno-toplevel-reorder, \
Bin Meng9a95f512017-07-27 06:12:34 -070010 $(call cc-option, -fno-unit-at-a-time))
Ben Stoltz3f1c0462015-08-04 12:33:42 -060011
Wolfgang Denkcca4e4a2011-11-01 20:54:02 +000012PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_X86)
Graeme Russa85f53c2011-02-12 15:11:21 +110013PLATFORM_CPPFLAGS += -fno-dwarf2-cfi-asm
Simon Glass3a037032017-01-16 07:04:26 -070014
15ifdef CONFIG_SPL_BUILD
16IS_32BIT := y
17else
18ifndef CONFIG_X86_64
19IS_32BIT := y
20endif
21endif
22
Simon Glass081dfcf2022-01-04 03:51:16 -070023EFI_IS_32BIT := $(IS_32BIT)
24ifdef CONFIG_EFI_STUB_64BIT
25EFI_IS_32BIT :=
26endif
27
Simon Glass3a037032017-01-16 07:04:26 -070028ifeq ($(IS_32BIT),y)
Vasili Galkadbb72342014-06-10 16:14:56 +030029PLATFORM_CPPFLAGS += -march=i386 -m32
Simon Glass3a037032017-01-16 07:04:26 -070030else
Bin Menga139cc12018-10-13 20:52:01 -070031PLATFORM_CPPFLAGS += $(if $(CONFIG_SPL_BUILD),,-fpic) -fno-common -march=core2 -m64
Bin Mengdd4611d2018-10-13 20:52:02 -070032PLATFORM_CPPFLAGS += -mno-mmx -mno-sse
Simon Glass3a037032017-01-16 07:04:26 -070033endif
Graeme Russd664adb2010-10-07 20:03:20 +110034
Alexander Graf1acbd0e2018-08-20 14:20:51 +020035PLATFORM_RELFLAGS += -fdata-sections -ffunction-sections -fvisibility=hidden
Graeme Russa85f53c2011-02-12 15:11:21 +110036
Tom Rini587e4a42020-03-27 11:46:27 -040037KBUILD_LDFLAGS += -Bsymbolic -Bsymbolic-functions
38KBUILD_LDFLAGS += -m $(if $(IS_32BIT),elf_i386,elf_x86_64)
Graeme Russa85f53c2011-02-12 15:11:21 +110039
Simon Glass476476e2015-08-04 12:33:52 -060040# This is used in the top-level Makefile which does not include
Tom Rini587e4a42020-03-27 11:46:27 -040041# KBUILD_LDFLAGS
Bin Meng972ffcd2018-10-02 07:39:30 -070042LDFLAGS_EFI_PAYLOAD := -Bsymbolic -Bsymbolic-functions -shared --no-undefined -s
Simon Glass476476e2015-08-04 12:33:52 -060043
Ben Stoltz3f1c0462015-08-04 12:33:42 -060044OBJCOPYFLAGS_EFI := -j .text -j .sdata -j .data -j .dynamic -j .dynsym \
Simon Glass8d767442021-09-24 18:30:19 -060045 -j .rel -j .rela -j .reloc --strip-all
Ben Stoltz3f1c0462015-08-04 12:33:42 -060046
Heinrich Schuchardt1598c832021-04-11 11:21:57 +020047# Compiler flags to be added when building UEFI applications
Ben Stoltz3f1c0462015-08-04 12:33:42 -060048CFLAGS_EFI := -fpic -fshort-wchar
Heinrich Schuchardt1598c832021-04-11 11:21:57 +020049# Compiler flags to be removed when building UEFI applications
Joel Peshkin4e9bce12021-04-11 11:21:58 +020050CFLAGS_NON_EFI := -mregparm=3 -fstack-protector-strong
Ben Stoltz3f1c0462015-08-04 12:33:42 -060051
Simon Glass081dfcf2022-01-04 03:51:16 -070052ifeq ($(IS_32BIT),y)
53EFIPAYLOAD_BFDARCH = i386
54else
Simon Glass96a8d402015-08-04 12:33:56 -060055CFLAGS_EFI += $(call cc-option, -mno-red-zone)
Simon Glass081dfcf2022-01-04 03:51:16 -070056EFIPAYLOAD_BFDARCH = x86_64
57endif
58
59ifeq ($(EFI_IS_32BIT),y)
Ben Stoltz3f1c0462015-08-04 12:33:42 -060060EFIARCH = ia32
Simon Glass476476e2015-08-04 12:33:52 -060061EFIPAYLOAD_BFDTARGET = elf32-i386
Simon Glass96a8d402015-08-04 12:33:56 -060062else
63EFIARCH = x86_64
64EFIPAYLOAD_BFDTARGET = elf64-x86-64
65endif
Simon Glass476476e2015-08-04 12:33:52 -060066
Simon Glassd36badf2016-11-07 08:47:13 -070067LDSCRIPT_EFI := $(srctree)/arch/x86/lib/elf_$(EFIARCH)_efi.lds
Simon Glass2dcd4e92016-11-07 08:47:14 -070068EFISTUB := crt0_$(EFIARCH)_efi.o reloc_$(EFIARCH)_efi.o
Ben Stoltz3f1c0462015-08-04 12:33:42 -060069OBJCOPYFLAGS_EFI += --target=efi-app-$(EFIARCH)
70
Simon Glass96a8d402015-08-04 12:33:56 -060071CPPFLAGS_REMOVE_crt0-efi-$(EFIARCH).o += $(CFLAGS_NON_EFI)
72CPPFLAGS_crt0-efi-$(EFIARCH).o += $(CFLAGS_EFI)
73
Ben Stoltz3f1c0462015-08-04 12:33:42 -060074ifeq ($(CONFIG_EFI_APP),y)
75
76PLATFORM_CPPFLAGS += $(CFLAGS_EFI)
Simon Glass8d767442021-09-24 18:30:19 -060077LDFLAGS_FINAL += -znocombreloc -shared
Ben Stoltz3f1c0462015-08-04 12:33:42 -060078LDSCRIPT := $(LDSCRIPT_EFI)
79
80else
81
Heinrich Schuchardt1598c832021-04-11 11:21:57 +020082ifeq ($(IS_32BIT),y)
83PLATFORM_CPPFLAGS += -mregparm=3
84endif
Tom Rini587e4a42020-03-27 11:46:27 -040085KBUILD_LDFLAGS += --emit-relocs
Simon Glass3a037032017-01-16 07:04:26 -070086LDFLAGS_FINAL += --gc-sections $(if $(CONFIG_SPL_BUILD),,-pie)
Ben Stoltz3f1c0462015-08-04 12:33:42 -060087
88endif
Simon Glass5bd828b2016-11-07 08:47:15 -070089
Simon Glass3a037032017-01-16 07:04:26 -070090ifdef CONFIG_X86_64
91ifndef CONFIG_SPL_BUILD
92PLATFORM_CPPFLAGS += -D__x86_64__
93else
94PLATFORM_CPPFLAGS += -D__I386__
95endif
96else
97PLATFORM_CPPFLAGS += -D__I386__
98endif
99
Heinrich Schuchardt508d8562018-05-18 19:12:19 +0200100ifdef CONFIG_EFI_STUB
Simon Glass5bd828b2016-11-07 08:47:15 -0700101
Heinrich Schuchardt508d8562018-05-18 19:12:19 +0200102ifdef CONFIG_EFI_STUB_64BIT
Simon Glass5bd828b2016-11-07 08:47:15 -0700103EFI_LDS := elf_x86_64_efi.lds
104EFI_CRT0 := crt0_x86_64_efi.o
105EFI_RELOC := reloc_x86_64_efi.o
Simon Glass5bd828b2016-11-07 08:47:15 -0700106else
107EFI_LDS := elf_ia32_efi.lds
108EFI_CRT0 := crt0_ia32_efi.o
109EFI_RELOC := reloc_ia32_efi.o
Heinrich Schuchardtf4cf1532018-04-06 15:36:31 +0200110endif
111
Heinrich Schuchardt508d8562018-05-18 19:12:19 +0200112else
113
114ifdef CONFIG_X86_64
115EFI_LDS := elf_x86_64_efi.lds
116EFI_CRT0 := crt0_x86_64_efi.o
117EFI_RELOC := reloc_x86_64_efi.o
118else
119EFI_LDS := elf_ia32_efi.lds
120EFI_CRT0 := crt0_ia32_efi.o
121EFI_RELOC := reloc_ia32_efi.o
122endif
123
124endif
125
Heinrich Schuchardtf4cf1532018-04-06 15:36:31 +0200126ifdef CONFIG_X86_64
Simon Glass5bd828b2016-11-07 08:47:15 -0700127EFI_TARGET := --target=efi-app-x86_64
Heinrich Schuchardtf4cf1532018-04-06 15:36:31 +0200128else
129EFI_TARGET := --target=efi-app-ia32
Simon Glass5bd828b2016-11-07 08:47:15 -0700130endif