diff options
| author | Simon Glass <sjg@chromium.org> | 2017-01-16 07:04:26 -0700 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2017-02-07 13:14:54 +0800 |
| commit | 3a03703afcabb779f8e74720d95889e2be83a861 (patch) | |
| tree | f61ab6c6d8563fd0866e6fe80264f5ff2ff55532 /arch | |
| parent | c17c4228543396e1eac27ed522d90b2fc578529a (diff) | |
| download | u-boot-imx-3a03703afcabb779f8e74720d95889e2be83a861.zip u-boot-imx-3a03703afcabb779f8e74720d95889e2be83a861.tar.gz u-boot-imx-3a03703afcabb779f8e74720d95889e2be83a861.tar.bz2 | |
x86: Update compile/link flags to support 64-bit U-Boot
Update config.mk settings to support both 32-bit and 64-bit U-Boot.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/config.mk | 30 | ||||
| -rw-r--r-- | arch/x86/cpu/config.mk | 2 |
2 files changed, 28 insertions, 4 deletions
diff --git a/arch/x86/config.mk b/arch/x86/config.mk index 1697dca..74b87ce 100644 --- a/arch/x86/config.mk +++ b/arch/x86/config.mk @@ -15,11 +15,25 @@ PF_CPPFLAGS_X86 := $(call cc-option, -fno-toplevel-reorder, \ PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_X86) PLATFORM_CPPFLAGS += -fno-dwarf2-cfi-asm + +ifdef CONFIG_SPL_BUILD +IS_32BIT := y +else +ifndef CONFIG_X86_64 +IS_32BIT := y +endif +endif + +ifeq ($(IS_32BIT),y) PLATFORM_CPPFLAGS += -march=i386 -m32 +else +PLATFORM_CPPFLAGS += $(if $(CONFIG_SPL_BUILD),,-fpic) -fno-common +endif PLATFORM_RELFLAGS += -ffunction-sections -fvisibility=hidden -PLATFORM_LDFLAGS += -Bsymbolic -Bsymbolic-functions -m elf_i386 +PLATFORM_LDFLAGS += -Bsymbolic -Bsymbolic-functions +PLATFORM_LDFLAGS += -m $(if $(IS_32BIT),elf_i386,elf_x86_64) LDFLAGS_FINAL += --wrap=__divdi3 --wrap=__udivdi3 LDFLAGS_FINAL += --wrap=__moddi3 --wrap=__umoddi3 @@ -31,7 +45,9 @@ LDFLAGS_EFI_PAYLOAD := -Bsymbolic -Bsymbolic-functions -shared --no-undefined OBJCOPYFLAGS_EFI := -j .text -j .sdata -j .data -j .dynamic -j .dynsym \ -j .rel -j .rela -j .reloc +ifeq ($(IS_32BIT),y) CFLAGS_NON_EFI := -mregparm=3 +endif CFLAGS_EFI := -fpic -fshort-wchar ifeq ($(CONFIG_EFI_STUB_64BIT),) @@ -62,8 +78,18 @@ else PLATFORM_CPPFLAGS += $(CFLAGS_NON_EFI) PLATFORM_LDFLAGS += --emit-relocs -LDFLAGS_FINAL += --gc-sections -pie +LDFLAGS_FINAL += --gc-sections $(if $(CONFIG_SPL_BUILD),,-pie) + +endif +ifdef CONFIG_X86_64 +ifndef CONFIG_SPL_BUILD +PLATFORM_CPPFLAGS += -D__x86_64__ +else +PLATFORM_CPPFLAGS += -D__I386__ +endif +else +PLATFORM_CPPFLAGS += -D__I386__ endif ifneq ($(CONFIG_EFI_STUB)$(CONFIG_CMD_BOOTEFI_HELLO_COMPILE),) diff --git a/arch/x86/cpu/config.mk b/arch/x86/cpu/config.mk index 4c99a35..b519f43 100644 --- a/arch/x86/cpu/config.mk +++ b/arch/x86/cpu/config.mk @@ -7,8 +7,6 @@ CROSS_COMPILE ?= i386-linux- -PLATFORM_CPPFLAGS += -D__I386__ - # DO NOT MODIFY THE FOLLOWING UNLESS YOU REALLY KNOW WHAT YOU ARE DOING! LDPPFLAGS += -DRESET_SEG_START=$(CONFIG_RESET_SEG_START) LDPPFLAGS += -DRESET_SEG_SIZE=$(CONFIG_RESET_SEG_SIZE) |