efi_loader: Allow to compile helloworld.efi w/o bundling it

[people/ms/u-boot.git] / arch / x86 / config.mk

diff --git a/arch/x86/config.mk b/arch/x86/config.mk
index 4a4ad8024a324ce38cd2a77a082234cbe741d99f..1697dca47fb2b9c78fa07ddb83c016bec6972720 100644 (file)
--- a/arch/x86/config.mk
+++ b/arch/x86/config.mk
@@ -8,30 +8,76 @@
 CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000
 
 PLATFORM_CPPFLAGS += -fno-strict-aliasing
-PLATFORM_CPPFLAGS += -Wstrict-prototypes
-PLATFORM_CPPFLAGS += -mregparm=3
 PLATFORM_CPPFLAGS += -fomit-frame-pointer
-PF_CPPFLAGS_X86   := $(call cc-option, -ffreestanding) \
-                    $(call cc-option, -fno-toplevel-reorder, \
+PF_CPPFLAGS_X86   := $(call cc-option, -fno-toplevel-reorder, \
                       $(call cc-option, -fno-unit-at-a-time)) \
-                    $(call cc-option, -fno-stack-protector) \
                     $(call cc-option, -mpreferred-stack-boundary=2)
+
 PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_X86)
 PLATFORM_CPPFLAGS += -fno-dwarf2-cfi-asm
-PLATFORM_CPPFLAGS += -DREALMODE_BASE=0x7c0
-
-# Support generic board on x86
-__HAVE_ARCH_GENERIC_BOARD := y
+PLATFORM_CPPFLAGS += -march=i386 -m32
 
 PLATFORM_RELFLAGS += -ffunction-sections -fvisibility=hidden
 
-PLATFORM_LDFLAGS += --emit-relocs -Bsymbolic -Bsymbolic-functions
+PLATFORM_LDFLAGS += -Bsymbolic -Bsymbolic-functions -m elf_i386
 
-LDFLAGS_FINAL += --gc-sections -pie
 LDFLAGS_FINAL += --wrap=__divdi3 --wrap=__udivdi3
 LDFLAGS_FINAL += --wrap=__moddi3 --wrap=__umoddi3
 
-export NORMAL_LIBGCC = $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
-PREFIXED_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/$(shell basename $(NORMAL_LIBGCC))
+# This is used in the top-level Makefile which does not include
+# PLATFORM_LDFLAGS
+LDFLAGS_EFI_PAYLOAD := -Bsymbolic -Bsymbolic-functions -shared --no-undefined
+
+OBJCOPYFLAGS_EFI := -j .text -j .sdata -j .data -j .dynamic -j .dynsym \
+       -j .rel -j .rela -j .reloc
+
+CFLAGS_NON_EFI := -mregparm=3
+CFLAGS_EFI := -fpic -fshort-wchar
+
+ifeq ($(CONFIG_EFI_STUB_64BIT),)
+CFLAGS_EFI += $(call cc-option, -mno-red-zone)
+EFIARCH = ia32
+EFIPAYLOAD_BFDTARGET = elf32-i386
+else
+EFIARCH = x86_64
+EFIPAYLOAD_BFDTARGET = elf64-x86-64
+endif
+
+EFIPAYLOAD_BFDARCH = i386
+
+LDSCRIPT_EFI := $(srctree)/arch/x86/lib/elf_$(EFIARCH)_efi.lds
+EFISTUB := crt0_$(EFIARCH)_efi.o reloc_$(EFIARCH)_efi.o
+OBJCOPYFLAGS_EFI += --target=efi-app-$(EFIARCH)
+
+CPPFLAGS_REMOVE_crt0-efi-$(EFIARCH).o += $(CFLAGS_NON_EFI)
+CPPFLAGS_crt0-efi-$(EFIARCH).o += $(CFLAGS_EFI)
+
+ifeq ($(CONFIG_EFI_APP),y)
+
+PLATFORM_CPPFLAGS += $(CFLAGS_EFI)
+LDFLAGS_FINAL += -znocombreloc -shared
+LDSCRIPT := $(LDSCRIPT_EFI)
+
+else
+
+PLATFORM_CPPFLAGS += $(CFLAGS_NON_EFI)
+PLATFORM_LDFLAGS += --emit-relocs
+LDFLAGS_FINAL += --gc-sections -pie
+
+endif
+
+ifneq ($(CONFIG_EFI_STUB)$(CONFIG_CMD_BOOTEFI_HELLO_COMPILE),)
+
+ifneq ($(CONFIG_EFI_STUB_64BIT),)
+EFI_LDS := elf_x86_64_efi.lds
+EFI_CRT0 := crt0_x86_64_efi.o
+EFI_RELOC := reloc_x86_64_efi.o
+EFI_TARGET := --target=efi-app-ia32
+else
+EFI_LDS := elf_ia32_efi.lds
+EFI_CRT0 := crt0_ia32_efi.o
+EFI_RELOC := reloc_ia32_efi.o
+EFI_TARGET := --target=efi-app-x86_64
+endif
 
-export USE_PRIVATE_LIBGCC=$(shell dirname $(PREFIXED_LIBGCC))
+endif