kern.pre.mk revision 116341 
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 116341 2003-06-14 17:28:13Z markm $
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
17LINT?=		lint
18NM?=		nm
19OBJCOPY?=	objcopy
20SIZE?=		size
21
22COPTFLAGS?=-O -pipe
23.if !defined(NO_CPU_COPTFLAGS)
24COPTFLAGS+= ${_CPUCFLAGS}
25.endif
26INCLUDES= -nostdinc -I- ${INCLMAGIC} -I. -I$S -I$S/dev
27
28# This hack lets us use the Intel ACPICA code without spamming a new 
29# include path into 100+ source files.
30INCLUDES+= -I$S/contrib/dev/acpica
31
32# ... and the same for ipfilter
33INCLUDES+= -I$S/contrib/ipfilter
34
35COPTS=	${INCLUDES} -D_KERNEL -include opt_global.h
36CFLAGS=	${COPTFLAGS} ${CWARNFLAGS} ${DEBUG} ${COPTS} -fno-common
37
38# XXX LOCORE means "don't declare C stuff" not "for locore.s".
39ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
40
41.if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
42CFLAGS+=	-DGPROF -falign-functions=16
43.if ${PROFLEVEL} >= 2
44CFLAGS+=	-DGPROF4 -DGUPROF
45# XXX -Wno-inline is to break some warnings.
46PROF=	-finstrument-functions -Wno-inline
47.else
48PROF=	-pg
49.endif
50.endif
51DEFINED_PROF=	${PROF}
52WERROR?=	-Werror
53
54# Put configuration-specific C flags last (except for ${PROF}) so that they
55# can override the others.
56CFLAGS+=	${CONF_CFLAGS}
57
58# Optional linting. This can be overridden in /etc/make.conf.
59LINTFLAGS=	${LINTOBJKERNFLAGS}
60
61NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
62NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
63PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
64NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
65
66NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
67	  ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
68
69NORMAL_LINT=	${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
70
71GEN_CFILES= $S/$M/$M/genassym.c
72SYSTEM_CFILES= config.c env.c hints.c majors.c vnode_if.c
73SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
74SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
75SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
76SYSTEM_OBJS+= hack.So
77SYSTEM_LD= @${LD} ${FMT} -Bdynamic -T $S/conf/ldscript.$M \
78	-warn-common -export-dynamic -dynamic-linker /red/herring \
79	-o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
80SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
81	${SIZE} ${FMT} ${.TARGET} ; chmod 755 ${.TARGET}
82SYSTEM_DEP+= $S/conf/ldscript.$M
83
84# MKMODULESENV is set here so that port makefiles can augment
85# them.
86
87MKMODULESENV=	MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
88.if (${KERN_IDENT} == LINT)
89MKMODULESENV+=	ALL_MODULES=LINT
90.endif
91.if defined(MODULES_OVERRIDE)
92MKMODULESENV+=	MODULES_OVERRIDE="${MODULES_OVERRIDE}"
93.endif
94.if defined(DEBUG)
95MKMODULESENV+=	DEBUG="${DEBUG}" DEBUG_FLAGS="${DEBUG}"
96.endif
97