u-boot/arch/x86/config.mk
Masahiro Yamada dd43fa22de x86: set CONFIG_USE_PRIVATE_LIBGCC to y
The motivation of this commit is to change CONFIG_USE_PRIVATE_LIBGCC
to a boolean macro so we can move it to Kconfig.

In the current implementation, there are two forms of syntax
for this macro:

  - CONFIG_USE_PRIVATE_LIBGCC=y
  - CONFIG_USE_PRIVATE_LIBGCC=path/to/private/libgcc

The latter is only used by x86 architecture.
With a little bit refactoring, it can be converted to the former.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
2014-10-23 13:19:04 -04:00

30 lines
955 B
Makefile

#
# (C) Copyright 2000-2002
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# SPDX-License-Identifier: GPL-2.0+
#
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 += -DREALMODE_BASE=0x7c0
PLATFORM_CPPFLAGS += -march=i386 -m32
# Support generic board on x86
__HAVE_ARCH_GENERIC_BOARD := y
PLATFORM_RELFLAGS += -ffunction-sections -fvisibility=hidden
PLATFORM_LDFLAGS += --emit-relocs -Bsymbolic -Bsymbolic-functions -m elf_i386
LDFLAGS_FINAL += --gc-sections -pie
LDFLAGS_FINAL += --wrap=__divdi3 --wrap=__udivdi3
LDFLAGS_FINAL += --wrap=__moddi3 --wrap=__umoddi3