xref: /openbmc/u-boot/arch/x86/config.mk (revision 66a62ce0)
1#
2# (C) Copyright 2000-2002
3# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4#
5# See file CREDITS for list of people who contributed to this
6# project.
7#
8# This program is free software; you can redistribute it and/or
9# modify it under the terms of the GNU General Public License as
10# published by the Free Software Foundation; either version 2 of
11# the License, or (at your option) any later version.
12#
13# This program is distributed in the hope that it will be useful,
14# but WITHOUT ANY WARRANTY; without even the implied warranty of
15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16# GNU General Public License for more details.
17#
18# You should have received a copy of the GNU General Public License
19# along with this program; if not, write to the Free Software
20# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21# MA 02111-1307 USA
22#
23
24CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000
25
26PLATFORM_CPPFLAGS += -fno-strict-aliasing
27PLATFORM_CPPFLAGS += -Wstrict-prototypes
28PLATFORM_CPPFLAGS += -mregparm=3
29PLATFORM_CPPFLAGS += -fomit-frame-pointer
30PF_CPPFLAGS_X86   := $(call cc-option, -ffreestanding) \
31		     $(call cc-option, -fno-toplevel-reorder, \
32		       $(call cc-option, -fno-unit-at-a-time)) \
33		     $(call cc-option, -fno-stack-protector) \
34		     $(call cc-option, -mpreferred-stack-boundary=2)
35PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_X86)
36PLATFORM_CPPFLAGS += -fno-dwarf2-cfi-asm
37PLATFORM_CPPFLAGS += -DREALMODE_BASE=0x7c0
38
39# Support generic board on x86
40__HAVE_ARCH_GENERIC_BOARD := y
41
42PLATFORM_RELFLAGS += -ffunction-sections -fvisibility=hidden
43
44PLATFORM_LDFLAGS += --emit-relocs -Bsymbolic -Bsymbolic-functions
45
46LDFLAGS_FINAL += --gc-sections -pie
47LDFLAGS_FINAL += --wrap=__divdi3 --wrap=__udivdi3
48LDFLAGS_FINAL += --wrap=__moddi3 --wrap=__umoddi3
49
50NORMAL_LIBGCC = $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
51PREFIXED_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/$(shell basename $(NORMAL_LIBGCC))
52
53export USE_PRIVATE_LIBGCC=$(shell dirname $(PREFIXED_LIBGCC))
54