mirror of
https://github.com/AsahiLinux/u-boot
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5bd828b532
Add compiler flags and make a few minor adjustments to support the efi loader. Signed-off-by: Simon Glass <sjg@chromium.org> [agraf: Add Kconfig dep] Signed-off-by: Alexander Graf <agraf@suse.de>
83 lines
2.2 KiB
Makefile
83 lines
2.2 KiB
Makefile
#
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# (C) Copyright 2000-2002
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000
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PLATFORM_CPPFLAGS += -fno-strict-aliasing
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PLATFORM_CPPFLAGS += -fomit-frame-pointer
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PF_CPPFLAGS_X86 := $(call cc-option, -fno-toplevel-reorder, \
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$(call cc-option, -fno-unit-at-a-time)) \
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$(call cc-option, -mpreferred-stack-boundary=2)
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PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_X86)
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PLATFORM_CPPFLAGS += -fno-dwarf2-cfi-asm
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PLATFORM_CPPFLAGS += -march=i386 -m32
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PLATFORM_RELFLAGS += -ffunction-sections -fvisibility=hidden
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PLATFORM_LDFLAGS += -Bsymbolic -Bsymbolic-functions -m elf_i386
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LDFLAGS_FINAL += --wrap=__divdi3 --wrap=__udivdi3
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LDFLAGS_FINAL += --wrap=__moddi3 --wrap=__umoddi3
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# This is used in the top-level Makefile which does not include
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# PLATFORM_LDFLAGS
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LDFLAGS_EFI_PAYLOAD := -Bsymbolic -Bsymbolic-functions -shared --no-undefined
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OBJCOPYFLAGS_EFI := -j .text -j .sdata -j .data -j .dynamic -j .dynsym \
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-j .rel -j .rela -j .reloc
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CFLAGS_NON_EFI := -mregparm=3
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CFLAGS_EFI := -fpic -fshort-wchar
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ifeq ($(CONFIG_EFI_STUB_64BIT),)
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CFLAGS_EFI += $(call cc-option, -mno-red-zone)
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EFIARCH = ia32
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EFIPAYLOAD_BFDTARGET = elf32-i386
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else
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EFIARCH = x86_64
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EFIPAYLOAD_BFDTARGET = elf64-x86-64
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endif
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EFIPAYLOAD_BFDARCH = i386
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LDSCRIPT_EFI := $(srctree)/arch/x86/lib/elf_$(EFIARCH)_efi.lds
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EFISTUB := crt0_$(EFIARCH)_efi.o reloc_$(EFIARCH)_efi.o
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OBJCOPYFLAGS_EFI += --target=efi-app-$(EFIARCH)
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CPPFLAGS_REMOVE_crt0-efi-$(EFIARCH).o += $(CFLAGS_NON_EFI)
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CPPFLAGS_crt0-efi-$(EFIARCH).o += $(CFLAGS_EFI)
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ifeq ($(CONFIG_EFI_APP),y)
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PLATFORM_CPPFLAGS += $(CFLAGS_EFI)
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LDFLAGS_FINAL += -znocombreloc -shared
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LDSCRIPT := $(LDSCRIPT_EFI)
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else
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PLATFORM_CPPFLAGS += $(CFLAGS_NON_EFI)
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PLATFORM_LDFLAGS += --emit-relocs
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LDFLAGS_FINAL += --gc-sections -pie
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endif
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ifneq ($(CONFIG_EFI_STUB)$(CONFIG_CMD_BOOTEFI_HELLO),)
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ifneq ($(CONFIG_EFI_STUB_64BIT),)
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EFI_LDS := elf_x86_64_efi.lds
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EFI_CRT0 := crt0_x86_64_efi.o
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EFI_RELOC := reloc_x86_64_efi.o
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EFI_TARGET := --target=efi-app-ia32
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else
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EFI_LDS := elf_ia32_efi.lds
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EFI_CRT0 := crt0_ia32_efi.o
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EFI_RELOC := reloc_ia32_efi.o
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EFI_TARGET := --target=efi-app-x86_64
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endif
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endif
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