kern.pre.mk revision 144293 
1# $FreeBSD: head/sys/conf/kern.pre.mk 144293 2005-03-29 11:23:25Z phk $
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 Intel ACPICA code without spamming a new
52# include path into 100+ source files.
53INCLUDES+= -I$S/contrib/dev/acpica
54
55# ... and the same for altq
56INCLUDES+= -I$S/contrib/altq
57
58# ... and the same for ipfilter
59INCLUDES+= -I$S/contrib/ipfilter
60
61# ... and the same for pf
62INCLUDES+= -I$S/contrib/pf
63
64# ... and the same for Atheros HAL
65INCLUDES+= -I$S/contrib/dev/ath -I$S/contrib/dev/ath/freebsd
66
67# ... and the same for the NgATM stuff
68INCLUDES+= -I$S/contrib/ngatm
69
70CFLAGS=	${COPTFLAGS} ${CWARNFLAGS} ${DEBUG}
71CFLAGS+= ${INCLUDES} -D_KERNEL -include opt_global.h
72.if ${CC} != "icc"
73CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT}
74CFLAGS+= --param inline-unit-growth=100
75CFLAGS+= --param large-function-growth=1000
76WERROR?= -Werror
77.endif
78
79# XXX LOCORE means "don't declare C stuff" not "for locore.s".
80ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
81
82.if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
83.if ${CC} == "icc"
84.error Profiling doesn't work with ICC yet.
85.else
86CFLAGS+=	-DGPROF -falign-functions=16
87.endif
88.if ${PROFLEVEL} >= 2
89CFLAGS+=	-DGPROF4 -DGUPROF
90. if ${CC} == "icc"
91# XXX doesn't work yet
92#PROF=	-prof_gen
93. else
94PROF=	-finstrument-functions -Wno-inline
95. endif
96.else
97. if ${CC} == "icc"
98PROF=	-p
99. else
100PROF=	-pg
101. endif
102.endif
103.endif
104DEFINED_PROF=	${PROF}
105
106# Put configuration-specific C flags last (except for ${PROF}) so that they
107# can override the others.
108CFLAGS+=	${CONF_CFLAGS}
109
110# Optional linting. This can be overridden in /etc/make.conf.
111LINTFLAGS=	${LINTOBJKERNFLAGS}
112
113NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
114NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
115PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
116NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
117
118NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
119	  ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
120
121NORMAL_LINT=	${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
122
123GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
124SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
125SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
126SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
127SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
128SYSTEM_OBJS+= hack.So
129SYSTEM_LD= @${LD} -Bdynamic -T $S/conf/ldscript.$M \
130	-warn-common -export-dynamic -dynamic-linker /red/herring \
131	-o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
132SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
133	${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
134SYSTEM_DEP+= $S/conf/ldscript.$M
135
136# MKMODULESENV is set here so that port makefiles can augment
137# them.
138
139MKMODULESENV=	MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
140.if (${KERN_IDENT} == LINT)
141MKMODULESENV+=	ALL_MODULES=LINT
142.endif
143.if defined(MODULES_OVERRIDE)
144MKMODULESENV+=	MODULES_OVERRIDE="${MODULES_OVERRIDE}"
145.endif
146.if defined(DEBUG)
147MKMODULESENV+=	DEBUG_FLAGS="${DEBUG}"
148.endif
149