kern.pre.mk revision 111684 
1# kern.pre.mk
2#
3# Unified Makefile for building kernels.  This includes all the definitions
4# that need to be included before %BEFORE_DEPEND
5#
6# $FreeBSD: head/sys/conf/kern.pre.mk 111684 2003-02-28 21:59:14Z ru $
7#
8
9# Can be overridden by makeoptions or /etc/make.conf
10KERNEL_KO?=	kernel
11KERNEL?=	kernel
12KODIR?=		/boot/${KERNEL}
13
14M=	${MACHINE_ARCH}
15
16AWK?=		awk
17NM?=		nm
18OBJCOPY?=	objcopy
19SIZE?=		size
20
21COPTFLAGS?=-O -pipe
22.if !defined(NO_CPU_COPTFLAGS)
23COPTFLAGS+= ${_CPUCFLAGS}
24.endif
25INCLUDES= -nostdinc -I- ${INCLMAGIC} -I. -I$S -I$S/dev
26
27# This hack lets us use the Intel ACPICA code without spamming a new 
28# include path into 100+ source files.
29INCLUDES+= -I$S/contrib/dev/acpica
30
31# ... and the same for ipfilter
32INCLUDES+= -I$S/contrib/ipfilter
33
34COPTS=	${INCLUDES} -D_KERNEL -include opt_global.h
35CFLAGS=	${COPTFLAGS} ${CWARNFLAGS} ${DEBUG} ${COPTS} -fno-common
36
37# XXX LOCORE means "don't declare C stuff" not "for locore.s".
38ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
39
40.if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
41CFLAGS+=	-DGPROF -falign-functions=16
42.if ${PROFLEVEL} >= 2
43CFLAGS+=	-DGPROF4 -DGUPROF
44# XXX -Wno-inline is to break some warnings.
45PROF=	-finstrument-functions -Wno-inline
46.else
47PROF=	-pg
48.endif
49.endif
50DEFINED_PROF=	${PROF}
51WERROR?=	-Werror
52
53# Put configuration-specific C flags last (except for ${PROF}) so that they
54# can override the others.
55CFLAGS+=	${CONF_CFLAGS}
56
57NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
58NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
59PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
60NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
61
62NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
63	  ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
64
65GEN_CFILES= $S/$M/$M/genassym.c
66SYSTEM_CFILES= config.c env.c hints.c majors.c vnode_if.c
67SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
68SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
69SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
70SYSTEM_OBJS+= hack.So
71SYSTEM_LD= @${LD} ${FMT} -Bdynamic -T $S/conf/ldscript.$M \
72	-warn-common -export-dynamic -dynamic-linker /red/herring \
73	-o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
74SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
75	${SIZE} ${FMT} ${.TARGET} ; chmod 755 ${.TARGET}
76SYSTEM_DEP+= $S/conf/ldscript.$M
77
78# MKMODULESENV is set here so that port makefiles can augment
79# them.
80
81MKMODULESENV=	MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
82.if (${KERN_IDENT} == LINT)
83MKMODULESENV+=	ALL_MODULES=LINT
84.endif
85.if defined(MODULES_OVERRIDE)
86MKMODULESENV+=	MODULES_OVERRIDE="${MODULES_OVERRIDE}"
87.endif
88.if defined(DEBUG)
89MKMODULESENV+=	DEBUG="${DEBUG}" DEBUG_FLAGS="${DEBUG}"
90.endif
91