diff options
| author | Ben Stoltz <stoltz@google.com> | 2015-08-04 12:33:42 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-08-05 08:44:05 -0600 |
| commit | 3f1c046cea8db2495b55a2b924f2f1b60c9997db (patch) | |
| tree | e9fc6e7381bf8c7f8375e2d9bcb79b8c39fc7d40 /arch/x86 | |
| parent | 484cce0d2d86e0a3992ce577cd7045ba6ea72060 (diff) | |
x86: Set up toolchain flags for running as EFI application
Adjust the toolchain flags to build U-Boot as a relocatable shared library,
as required by EFI.
Signed-off-by: Ben Stoltz <stoltz@google.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/config.mk | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/arch/x86/config.mk b/arch/x86/config.mk index 999143e9df..e27f84abda 100644 --- a/arch/x86/config.mk +++ b/arch/x86/config.mk @@ -8,19 +8,43 @@ CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000 PLATFORM_CPPFLAGS += -fno-strict-aliasing -PLATFORM_CPPFLAGS += -mregparm=3 PLATFORM_CPPFLAGS += -fomit-frame-pointer PF_CPPFLAGS_X86 := $(call cc-option, -fno-toplevel-reorder, \ $(call cc-option, -fno-unit-at-a-time)) \ $(call cc-option, -mpreferred-stack-boundary=2) + PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_X86) PLATFORM_CPPFLAGS += -fno-dwarf2-cfi-asm PLATFORM_CPPFLAGS += -march=i386 -m32 PLATFORM_RELFLAGS += -ffunction-sections -fvisibility=hidden -PLATFORM_LDFLAGS += --emit-relocs -Bsymbolic -Bsymbolic-functions -m elf_i386 +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 + +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 + +EFIARCH = ia32 + +LDSCRIPT_EFI := $(srctree)/$(CPUDIR)/efi/elf_$(EFIARCH)_efi.lds +OBJCOPYFLAGS_EFI += --target=efi-app-$(EFIARCH) + +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 |