blob: 57acfd6522cdefa7bab9e807a54ec7e1a6ffad26 [file] [log] [blame]
Al Viro6582b7f2011-08-18 20:03:19 +01001core-y += arch/um/sys-x86/ arch/x86/crypto/
Linus Torvalds1da177e2005-04-16 15:20:36 -07002
Jeff Dike42fda662007-10-16 01:26:50 -07003START := 0x8048000
Linus Torvalds1da177e2005-04-16 15:20:36 -07004
Paolo 'Blaisorblade' Giarrusso20d00212005-07-14 00:33:43 -07005LDFLAGS += -m elf_i386
Al Viroa6e77d62011-08-18 20:06:19 +01006ELF_ARCH := i386
7ELF_FORMAT := elf32-i386
Al Viro2b8232c2007-10-13 08:16:04 +01008HEADER_ARCH := x86
Al Viroca5cd872007-10-29 04:31:16 +00009CHECKFLAGS += -D__i386__
Paolo 'Blaisorblade' Giarrusso20d00212005-07-14 00:33:43 -070010
11ifeq ("$(origin SUBARCH)", "command line")
12ifneq ("$(shell uname -m | sed -e s/i.86/i386/)", "$(SUBARCH)")
Sam Ravnborga0f97e02007-10-14 22:21:35 +020013KBUILD_CFLAGS += $(call cc-option,-m32)
Sam Ravnborg222d3942007-10-15 21:59:31 +020014KBUILD_AFLAGS += $(call cc-option,-m32)
Paolo 'Blaisorblade' Giarrusso20d00212005-07-14 00:33:43 -070015LINK-y += $(call cc-option,-m32)
Paolo 'Blaisorblade' Giarrusso20d00212005-07-14 00:33:43 -070016
Al Viroa6e77d62011-08-18 20:06:19 +010017export LDFLAGS
Paolo 'Blaisorblade' Giarrusso20d00212005-07-14 00:33:43 -070018endif
19endif
20
Paolo 'Blaisorblade' Giarrusso96d55b82005-10-30 15:00:07 -080021# First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y.
Al Viro7a78a172007-10-29 04:34:31 +000022include $(srctree)/arch/x86/Makefile_32.cpu
Paolo 'Blaisorblade' Giarrusso96d55b82005-10-30 15:00:07 -080023
24# prevent gcc from keeping the stack 16 byte aligned. Taken from i386.
25cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
26
Jeff Dikefec468b2006-06-04 02:51:49 -070027# Prevent sprintf in nfsd from being converted to strcpy and resulting in
28# an unresolved reference.
29cflags-y += -ffreestanding
30
Jeff Dike4f81c532008-07-07 13:36:56 -040031# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
32# a lot more stack due to the lack of sharing of stacklots. Also, gcc
33# 4.3.0 needs -funit-at-a-time for extern inline functions.
34KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then \
35 echo $(call cc-option,-fno-unit-at-a-time); \
36 else echo $(call cc-option,-funit-at-a-time); fi ;)
37
Sam Ravnborga0f97e02007-10-14 22:21:35 +020038KBUILD_CFLAGS += $(cflags-y)