kern.pre.mk revision 220863 
1# $FreeBSD: head/sys/conf/kern.pre.mk 220863 2011-04-19 18:09:21Z dim $
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.include <bsd.own.mk>
7
8# backwards compat option for older systems.
9MACHINE_CPUARCH?=${MACHINE_ARCH:C/mipse[lb]/mips/:C/armeb/arm/:C/powerpc64/powerpc/}
10
11# Can be overridden by makeoptions or /etc/make.conf
12KERNEL_KO?=	kernel
13KERNEL?=	kernel
14KODIR?=		/boot/${KERNEL}
15LDSCRIPT_NAME?=	ldscript.$M
16LDSCRIPT?=	$S/conf/${LDSCRIPT_NAME}
17
18M=		${MACHINE_CPUARCH}
19
20AWK?=		awk
21LINT?=		lint
22NM?=		nm
23OBJCOPY?=	objcopy
24SIZE?=		size
25
26.if defined(DEBUG)
27_MINUS_O=	-O
28CTFFLAGS+=	-g
29.else
30_MINUS_O=	-O2
31.endif
32.if ${MACHINE_CPUARCH} == "amd64"
33COPTFLAGS?=-O2 -frename-registers -pipe
34.else
35COPTFLAGS?=${_MINUS_O} -pipe
36.endif
37.if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)
38COPTFLAGS+= -fno-strict-aliasing
39.endif
40.if !defined(NO_CPU_COPTFLAGS)
41COPTFLAGS+= ${_CPUCFLAGS}
42.endif
43C_DIALECT= -std=c99
44NOSTDINC= -nostdinc
45
46INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S
47
48# This hack lets us use the OpenBSD altq code without spamming a new
49# include path into contrib'ed source files.
50INCLUDES+= -I$S/contrib/altq
51
52.if make(depend) || make(kernel-depend)
53
54# ... and the same for ipfilter
55INCLUDES+= -I$S/contrib/ipfilter
56
57# ... and the same for pf
58INCLUDES+= -I$S/contrib/pf
59
60# ... and the same for ath
61INCLUDES+= -I$S/dev/ath -I$S/dev/ath/ath_hal
62
63# ... and the same for the NgATM stuff
64INCLUDES+= -I$S/contrib/ngatm
65
66# .. and the same for twa
67INCLUDES+= -I$S/dev/twa
68
69# ...  and XFS
70INCLUDES+= -I$S/gnu/fs/xfs/FreeBSD -I$S/gnu/fs/xfs/FreeBSD/support -I$S/gnu/fs/xfs
71
72# ... and the same for cxgb and cxgbe
73INCLUDES+= -I$S/dev/cxgb -I$S/dev/cxgbe
74
75.endif
76
77CFLAGS=	${COPTFLAGS} ${C_DIALECT} ${DEBUG} ${CWARNFLAGS}
78CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
79.if ${CC:T:Mclang} != "clang"
80CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT}
81.if ${MACHINE_CPUARCH} != "mips"
82CFLAGS+= --param inline-unit-growth=100
83CFLAGS+= --param large-function-growth=1000
84.else
85# XXX Actually a gross hack just for Octeon because of the Simple Executive.
86CFLAGS+= --param inline-unit-growth=10000
87CFLAGS+= --param large-function-growth=100000
88CFLAGS+= --param max-inline-insns-single=10000
89.endif
90.endif
91WERROR?= -Werror
92
93# XXX LOCORE means "don't declare C stuff" not "for locore.s".
94ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
95
96.if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
97CFLAGS+=	-DGPROF -falign-functions=16
98.if ${PROFLEVEL} >= 2
99CFLAGS+=	-DGPROF4 -DGUPROF
100PROF=	-pg -mprofiler-epilogue
101.else
102PROF=	-pg
103.endif
104.endif
105DEFINED_PROF=	${PROF}
106
107# Put configuration-specific C flags last (except for ${PROF}) so that they
108# can override the others.
109CFLAGS+=	${CONF_CFLAGS}
110
111# Optional linting. This can be overridden in /etc/make.conf.
112LINTFLAGS=	${LINTOBJKERNFLAGS}
113
114NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
115NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
116PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
117NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
118
119NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
120	  ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
121
122NORMAL_CTFCONVERT= [ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || \
123		   ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
124
125NORMAL_LINT=	${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
126
127# Infiniband C flags.  Correct include paths and omit errors that linux
128# does not honor.
129OFEDINCLUDES=	-I$S/ofed/include/
130OFEDNOERR=	-Wno-cast-qual -Wno-pointer-arith -fms-extensions
131OFEDCFLAGS=	${CFLAGS:N-I*} ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR}
132OFED_C_NOIMP=	${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF}
133OFED_C=		${OFED_C_NOIMP} ${.IMPSRC}
134
135GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
136SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
137SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
138SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
139SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
140SYSTEM_OBJS+= hack.So
141SYSTEM_CTFMERGE= [ -z "${CTFMERGE}" -o -n "${NO_CTF}" ] || ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o
142SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} \
143	-warn-common -export-dynamic -dynamic-linker /red/herring \
144	-o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
145SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
146	${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
147SYSTEM_DEP+= ${LDSCRIPT}
148
149# MKMODULESENV is set here so that port makefiles can augment
150# them.
151
152MKMODULESENV=	MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
153MKMODULESENV+=	MACHINE_CPUARCH=${MACHINE_CPUARCH}
154.if (${KERN_IDENT} == LINT)
155MKMODULESENV+=	ALL_MODULES=LINT
156.endif
157.if defined(MODULES_OVERRIDE)
158MKMODULESENV+=	MODULES_OVERRIDE="${MODULES_OVERRIDE}"
159.endif
160.if defined(WITHOUT_MODULES)
161MKMODULESENV+=	WITHOUT_MODULES="${WITHOUT_MODULES}"
162.endif
163.if defined(DEBUG)
164MKMODULESENV+=	DEBUG_FLAGS="${DEBUG}"
165.endif
166