kern.pre.mk revision 151605 
1# $FreeBSD: head/sys/conf/kern.pre.mk 151605 2005-10-24 04:40:37Z obrien $
2
3# Part of a unified Makefile for building kernels.  This part contains all
4# of the definitions that need to be before %BEFORE_DEPEND.
5
6# Can be overridden by makeoptions or /etc/make.conf
7KERNEL_KO?=	kernel
8KERNEL?=	kernel
9KODIR?=		/boot/${KERNEL}
10
11M=	${MACHINE_ARCH}
12
13AWK?=		awk
14LINT?=		lint
15NM?=		nm
16OBJCOPY?=	objcopy
17SIZE?=		size
18
19.if ${CC} == "icc"
20COPTFLAGS?=	-O
21.else
22. if defined(DEBUG)
23_MINUS_O=	-O
24. else
25_MINUS_O=	-O2
26. endif
27. if ${MACHINE_ARCH} == "amd64"
28COPTFLAGS?=-O2 -frename-registers -pipe
29. else
30COPTFLAGS?=${_MINUS_O} -pipe
31. endif
32. if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)
33COPTFLAGS+= -fno-strict-aliasing
34. endif
35.endif
36.if !defined(NO_CPU_COPTFLAGS)
37. if ${CC} == "icc"
38COPTFLAGS+= ${_ICC_CPUCFLAGS:C/(-x[^M^K^W]+)[MKW]+|-x[MKW]+/\1/}
39. else
40COPTFLAGS+= ${_CPUCFLAGS}
41. endif
42.endif
43.if ${CC} == "icc"
44NOSTDINC= -X
45.else
46NOSTDINC= -nostdinc
47.endif
48
49INCLUDES= ${NOSTDINC} -I- ${INCLMAGIC} -I. -I$S
50
51# This hack lets us use the OpenBSD altq code without spamming a new
52# include path into contrib'ed source files.
53INCLUDES+= -I$S/contrib/altq
54
55# ... and the same for Atheros HAL when the author builds it from
56#     non-distributable sources.
57.if defined(ATH_BUILDING_FROM_SOURCE)
58INCLUDES+= -I$S/contrib/dev/ath
59.endif
60
61.if make(depend) || make(kernel-depend)
62
63# ... and the same for ipfilter
64INCLUDES+= -I$S/contrib/ipfilter
65
66# ... and the same for pf
67INCLUDES+= -I$S/contrib/pf
68
69# ... and the same for Atheros HAL
70INCLUDES+= -I$S/contrib/dev/ath/freebsd
71
72# ... and the same for the NgATM stuff
73INCLUDES+= -I$S/contrib/ngatm
74
75# .. and the same for twa
76INCLUDES+= -I$S/dev/twa
77
78.endif
79
80CFLAGS=	${COPTFLAGS} ${CWARNFLAGS} ${DEBUG}
81CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
82.if ${CC} != "icc"
83CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT}
84CFLAGS+= --param inline-unit-growth=100
85CFLAGS+= --param large-function-growth=1000
86WERROR?= -Werror
87.endif
88
89# XXX LOCORE means "don't declare C stuff" not "for locore.s".
90ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
91
92.if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
93.if ${CC} == "icc"
94.error Profiling doesn't work with ICC yet.
95.else
96CFLAGS+=	-DGPROF -falign-functions=16
97.endif
98.if ${PROFLEVEL} >= 2
99CFLAGS+=	-DGPROF4 -DGUPROF
100. if ${CC} == "icc"
101# XXX doesn't work yet
102#PROF=	-prof_gen
103. else
104PROF=	-finstrument-functions -Wno-inline
105. endif
106.else
107. if ${CC} == "icc"
108PROF=	-p
109. else
110PROF=	-pg
111. endif
112.endif
113.endif
114DEFINED_PROF=	${PROF}
115
116# Put configuration-specific C flags last (except for ${PROF}) so that they
117# can override the others.
118CFLAGS+=	${CONF_CFLAGS}
119
120# Optional linting. This can be overridden in /etc/make.conf.
121LINTFLAGS=	${LINTOBJKERNFLAGS}
122
123NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
124NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
125PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
126NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
127
128NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
129	  ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
130
131NORMAL_LINT=	${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
132
133GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
134SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
135SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
136SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
137SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
138SYSTEM_OBJS+= hack.So
139SYSTEM_LD= @${LD} -Bdynamic -T $S/conf/ldscript.$M \
140	-warn-common -export-dynamic -dynamic-linker /red/herring \
141	-o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
142SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
143	${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
144SYSTEM_DEP+= $S/conf/ldscript.$M
145
146# MKMODULESENV is set here so that port makefiles can augment
147# them.
148
149MKMODULESENV=	MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
150.if (${KERN_IDENT} == LINT)
151MKMODULESENV+=	ALL_MODULES=LINT
152.endif
153.if defined(MODULES_OVERRIDE)
154MKMODULESENV+=	MODULES_OVERRIDE="${MODULES_OVERRIDE}"
155.endif
156.if defined(DEBUG)
157MKMODULESENV+=	DEBUG_FLAGS="${DEBUG}"
158.endif
159