xref: /src/sys/arch/i386/conf/Makefile.i386

#	$NetBSD: Makefile.i386,v 1.190 2018/04/07 19:38:06 mrg Exp $

# Makefile for NetBSD
#
# This makefile is constructed from a machine description:
#	config machineid
# Most changes should be made in the machine description
#	/sys/arch/i386/conf/``machineid''
# after which you should do
#	config machineid
# Machine generic makefile changes should be made in
#	/sys/arch/i386/conf/Makefile.i386
# after which config should be rerun for all machines of that type.
#
# To specify debugging, add the config line: makeoptions DEBUG="-g"
# A better way is to specify -g only for a few files.
#
#	makeoptions DEBUGLIST="uvm* trap if_*"

MACHINE_ARCH=	i386
USETOOLS?=	no
NEED_OWN_INSTALL_TARGET?=no
.include <bsd.own.mk>

USE_SSP?=	yes

##
## (1) port identification
##
I386=		$S/arch/i386
GENASSYM_CONF=	${I386}/i386/genassym.cf

##
## (2) compile settings
##
DEFCOPTS=	-O2 -fno-omit-frame-pointer
CPPFLAGS+=	-Di386
CFLAGS+=	-msoft-float
## no-sse implies no-sse2 but not no-avx
CFLAGS+=	-mno-mmx -mno-sse -mno-avx

.if !empty(SPECTRE_V2_GCC_MITIGATION) && ${HAVE_GCC:U0} > 0
CFLAGS+=	-mindirect-branch=thunk
CFLAGS+=	-mindirect-branch-register
.endif

##
## (3) libkern and compat
##
OPT_MODULAR=	%MODULAR%
.if !empty(OPT_MODULAR)
KERN_AS=	obj
.else
KERN_AS=	library
.endif

##
## (4) local objects, compile rules, and dependencies
##
MD_OBJS=	locore.o copy.o spl.o vector.o lock_stubs.o
MD_CFILES=
MD_SFILES=	${I386}/i386/locore.S ${I386}/i386/copy.S ${I386}/i386/spl.S \
		${I386}/i386/vector.S ${I386}/i386/lock_stubs.S

locore.o: ${I386}/i386/locore.S assym.h
	${NORMAL_S}

copy.o: ${I386}/i386/copy.S assym.h
	${NORMAL_S}

spl.o: ${I386}/i386/spl.S assym.h
	${NORMAL_S}

vector.o: ${I386}/i386/vector.S assym.h
	${NORMAL_S}

lock_stubs.o: ${I386}/i386/lock_stubs.S assym.h
	${NORMAL_S}

##
## (5) link settings
##
TEXTADDR?=	c0100000
LINKFLAGS_NORMAL=	-X
KERNLDSCRIPT?=	${I386}/conf/kern.ldscript

##
## (6) port specific target dependencies
##

i386func.o: assym.h
linux_sigcode.o lock_stubs.o: assym.h
cpufunc.o cpu_in_cksum.o pnpbioscall.o bioscall.o: assym.h
mptramp.o: assym.h
acpi_wakeup_low.o busfunc.o: assym.h

##
## (7) misc settings
##

.if !make(obj) && !make(clean) && !make(cleandir)
.BEGIN::
	-@rm -f i386 && \
		ln -s $S/arch/i386/include i386
.endif

##
## (8) config(8) generated machinery
##
%INCLUDES

%OBJS

%CFILES

%SFILES

%LOAD

%RULES

##
## (9) port independent kernel machinery
##
.include "$S/conf/Makefile.kern.inc"

## Include rules for ACPI wakecode
.include "$S/arch/x86/acpi/Makefile.wakecode.inc"

##
## (10) Appending make options.
##
%MAKEOPTIONSAPPEND