kern.pre.mk revision 228158 
1# $FreeBSD: head/sys/conf/kern.pre.mk 228158 2011-11-30 18:11:49Z fjoe $
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.if ${MACHINE_CPUARCH} == "powerpc"
31_MINUS_O=	-O	# gcc miscompiles some code at -O2
32.else
33_MINUS_O=	-O2
34.endif
35.endif
36.if ${MACHINE_CPUARCH} == "amd64"
37COPTFLAGS?=-O2 -frename-registers -pipe
38.else
39COPTFLAGS?=${_MINUS_O} -pipe
40.endif
41.if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)
42COPTFLAGS+= -fno-strict-aliasing
43.endif
44.if !defined(NO_CPU_COPTFLAGS)
45COPTFLAGS+= ${_CPUCFLAGS}
46.endif
47C_DIALECT= -std=c99
48NOSTDINC= -nostdinc
49
50INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S
51
52# This hack lets us use the OpenBSD altq code without spamming a new
53# include path into contrib'ed source files.
54INCLUDES+= -I$S/contrib/altq
55
56.if make(depend) || make(kernel-depend)
57
58# ... and the same for ipfilter
59INCLUDES+= -I$S/contrib/ipfilter
60
61# ... and the same for pf
62INCLUDES+= -I$S/contrib/pf
63
64# ... and the same for ath
65INCLUDES+= -I$S/dev/ath -I$S/dev/ath/ath_hal
66
67# ... and the same for the NgATM stuff
68INCLUDES+= -I$S/contrib/ngatm
69
70# .. and the same for twa
71INCLUDES+= -I$S/dev/twa
72
73# ...  and XFS
74INCLUDES+= -I$S/gnu/fs/xfs/FreeBSD -I$S/gnu/fs/xfs/FreeBSD/support -I$S/gnu/fs/xfs
75
76# ... and the same for cxgb and cxgbe
77INCLUDES+= -I$S/dev/cxgb -I$S/dev/cxgbe
78
79.endif
80
81CFLAGS=	${COPTFLAGS} ${C_DIALECT} ${DEBUG} ${CWARNFLAGS}
82CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
83.if ${CC:T:Mclang} != "clang"
84CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT}
85.if ${MACHINE_CPUARCH} != "mips"
86CFLAGS+= --param inline-unit-growth=100
87CFLAGS+= --param large-function-growth=1000
88.else
89# XXX Actually a gross hack just for Octeon because of the Simple Executive.
90CFLAGS+= --param inline-unit-growth=10000
91CFLAGS+= --param large-function-growth=100000
92CFLAGS+= --param max-inline-insns-single=10000
93.endif
94.endif
95WERROR?= -Werror
96
97# XXX LOCORE means "don't declare C stuff" not "for locore.s".
98ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
99
100.if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
101CFLAGS+=	-DGPROF -falign-functions=16
102.if ${PROFLEVEL} >= 2
103CFLAGS+=	-DGPROF4 -DGUPROF
104PROF=	-pg -mprofiler-epilogue
105.else
106PROF=	-pg
107.endif
108.endif
109DEFINED_PROF=	${PROF}
110
111# Put configuration-specific C flags last (except for ${PROF}) so that they
112# can override the others.
113CFLAGS+=	${CONF_CFLAGS}
114
115# Optional linting. This can be overridden in /etc/make.conf.
116LINTFLAGS=	${LINTOBJKERNFLAGS}
117
118NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
119NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
120PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
121NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
122
123NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
124	  ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
125
126.if ${MK_CTF} != "no"
127NORMAL_CTFCONVERT=	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
128.elif ${MAKE_VERSION} >= 5201111300
129NORMAL_CTFCONVERT=
130.else
131NORMAL_CTFCONVERT=	@:
132.endif
133
134NORMAL_LINT=	${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
135
136# Infiniband C flags.  Correct include paths and omit errors that linux
137# does not honor.
138OFEDINCLUDES=	-I$S/ofed/include/
139OFEDNOERR=	-Wno-cast-qual -Wno-pointer-arith -fms-extensions
140OFEDCFLAGS=	${CFLAGS:N-I*} ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR}
141OFED_C_NOIMP=	${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF}
142OFED_C=		${OFED_C_NOIMP} ${.IMPSRC}
143
144GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
145SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
146SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
147SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
148SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
149SYSTEM_OBJS+= hack.So
150SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} \
151	-warn-common -export-dynamic -dynamic-linker /red/herring \
152	-o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
153SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
154	${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
155SYSTEM_DEP+= ${LDSCRIPT}
156
157# MKMODULESENV is set here so that port makefiles can augment
158# them.
159
160MKMODULESENV+=	MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
161MKMODULESENV+=	MACHINE_CPUARCH=${MACHINE_CPUARCH}
162.if (${KERN_IDENT} == LINT)
163MKMODULESENV+=	ALL_MODULES=LINT
164.endif
165.if defined(MODULES_OVERRIDE)
166MKMODULESENV+=	MODULES_OVERRIDE="${MODULES_OVERRIDE}"
167.endif
168.if defined(WITHOUT_MODULES)
169MKMODULESENV+=	WITHOUT_MODULES="${WITHOUT_MODULES}"
170.endif
171.if defined(DEBUG)
172MKMODULESENV+=	DEBUG_FLAGS="${DEBUG}"
173.endif
174