kern.pre.mk revision 240468 
1# $FreeBSD: head/sys/conf/kern.pre.mk 240468 2012-09-13 16:00:46Z brooks $
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.include <bsd.compiler.mk>
8
9# backwards compat option for older systems.
10MACHINE_CPUARCH?=${MACHINE_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb)?/arm/:C/powerpc64/powerpc/}
11
12# Can be overridden by makeoptions or /etc/make.conf
13KERNEL_KO?=	kernel
14KERNEL?=	kernel
15KODIR?=		/boot/${KERNEL}
16LDSCRIPT_NAME?=	ldscript.$M
17LDSCRIPT?=	$S/conf/${LDSCRIPT_NAME}
18
19M=		${MACHINE_CPUARCH}
20
21AWK?=		awk
22CP?=		cp
23LINT?=		lint
24NM?=		nm
25OBJCOPY?=	objcopy
26SIZE?=		size
27
28.if defined(DEBUG)
29_MINUS_O=	-O
30CTFFLAGS+=	-g
31.else
32.if ${MACHINE_CPUARCH} == "powerpc"
33_MINUS_O=	-O	# gcc miscompiles some code at -O2
34.else
35_MINUS_O=	-O2
36.endif
37.endif
38.if ${MACHINE_CPUARCH} == "amd64"
39.if ${COMPILER_TYPE} != "clang"
40COPTFLAGS?=-O2 -frename-registers -pipe
41.else
42COPTFLAGS?=-O2 -pipe
43.endif
44.else
45COPTFLAGS?=${_MINUS_O} -pipe
46.endif
47.if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)
48COPTFLAGS+= -fno-strict-aliasing
49.endif
50.if !defined(NO_CPU_COPTFLAGS)
51COPTFLAGS+= ${_CPUCFLAGS}
52.endif
53C_DIALECT= -std=c99
54NOSTDINC= -nostdinc
55
56INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S
57
58# This hack lets us use the OpenBSD altq code without spamming a new
59# include path into contrib'ed source files.
60INCLUDES+= -I$S/contrib/altq
61
62.if make(depend) || make(kernel-depend)
63
64# ... and the same for ipfilter
65INCLUDES+= -I$S/contrib/ipfilter
66
67# ... and the same for pf
68INCLUDES+= -I$S/contrib/pf
69
70# ... and the same for ath
71INCLUDES+= -I$S/dev/ath -I$S/dev/ath/ath_hal
72
73# ... and the same for the NgATM stuff
74INCLUDES+= -I$S/contrib/ngatm
75
76# ... and the same for twa
77INCLUDES+= -I$S/dev/twa
78
79# ... and the same for XFS
80INCLUDES+= -I$S/gnu/fs/xfs/FreeBSD -I$S/gnu/fs/xfs/FreeBSD/support -I$S/gnu/fs/xfs
81
82# ... and the same for cxgb and cxgbe
83INCLUDES+= -I$S/dev/cxgb -I$S/dev/cxgbe
84
85.endif
86
87CFLAGS=	${COPTFLAGS} ${C_DIALECT} ${DEBUG} ${CWARNFLAGS}
88CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
89.if ${COMPILER_TYPE} != "clang"
90CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT}
91.if ${MACHINE_CPUARCH} != "mips"
92CFLAGS+= --param inline-unit-growth=100
93CFLAGS+= --param large-function-growth=1000
94.else
95# XXX Actually a gross hack just for Octeon because of the Simple Executive.
96CFLAGS+= --param inline-unit-growth=10000
97CFLAGS+= --param large-function-growth=100000
98CFLAGS+= --param max-inline-insns-single=10000
99.endif
100.endif
101WERROR?= -Werror
102
103# XXX LOCORE means "don't declare C stuff" not "for locore.s".
104ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
105
106.if ${COMPILER_TYPE} == "clang"
107CLANG_NO_IAS= -no-integrated-as
108.endif
109
110.if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
111CFLAGS+=	-DGPROF -falign-functions=16
112.if ${PROFLEVEL} >= 2
113CFLAGS+=	-DGPROF4 -DGUPROF
114PROF=	-pg -mprofiler-epilogue
115.else
116PROF=	-pg
117.endif
118.endif
119DEFINED_PROF=	${PROF}
120
121# Put configuration-specific C flags last (except for ${PROF}) so that they
122# can override the others.
123CFLAGS+=	${CONF_CFLAGS}
124
125# Optional linting. This can be overridden in /etc/make.conf.
126LINTFLAGS=	${LINTOBJKERNFLAGS}
127
128NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
129NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
130PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
131NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
132
133NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
134	  ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
135
136NORMAL_FW= uudecode -o ${.TARGET} ${.ALLSRC}
137NORMAL_FWO= ${LD} -b binary --no-warn-mismatch -d -warn-common -r \
138	-o ${.TARGET} ${.ALLSRC:M*.fw}
139
140# Special flags for managing the compat compiles for ZFS
141ZFS_CFLAGS=	-DFREEBSD_NAMECACHE -DBUILDING_ZFS -nostdinc -I$S/cddl/compat/opensolaris -I$S/cddl/contrib/opensolaris/uts/common/fs/zfs -I$S/cddl/contrib/opensolaris/uts/common/zmod -I$S/cddl/contrib/opensolaris/uts/common -I$S -I$S/cddl/contrib/opensolaris/common/zfs -I$S/cddl/contrib/opensolaris/common ${CFLAGS} -Wno-unknown-pragmas -Wno-missing-prototypes -Wno-undef -Wno-strict-prototypes -Wno-cast-qual -Wno-parentheses -Wno-redundant-decls -Wno-missing-braces -Wno-uninitialized -Wno-unused -Wno-inline -Wno-switch -Wno-pointer-arith -Wno-unknown-pragmas
142ZFS_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${ZFS_CFLAGS}
143ZFS_C=		${CC} -c ${ZFS_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
144ZFS_S=		${CC} -c ${ZFS_ASM_CFLAGS} ${WERROR} ${.IMPSRC}
145
146.if ${MK_CTF} != "no"
147NORMAL_CTFCONVERT=	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
148.elif ${MAKE_VERSION} >= 5201111300
149NORMAL_CTFCONVERT=
150.else
151NORMAL_CTFCONVERT=	@:
152.endif
153
154NORMAL_LINT=	${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
155
156# Infiniband C flags.  Correct include paths and omit errors that linux
157# does not honor.
158OFEDINCLUDES=	-I$S/ofed/include/
159OFEDNOERR=	-Wno-cast-qual -Wno-pointer-arith -fms-extensions
160OFEDCFLAGS=	${CFLAGS:N-I*} ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR}
161OFED_C_NOIMP=	${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF}
162OFED_C=		${OFED_C_NOIMP} ${.IMPSRC}
163
164GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
165SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
166SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
167SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
168SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
169SYSTEM_OBJS+= hack.So
170SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} --no-warn-mismatch \
171	-warn-common -export-dynamic -dynamic-linker /red/herring \
172	-o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
173SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
174	${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
175SYSTEM_DEP+= ${LDSCRIPT}
176
177# MKMODULESENV is set here so that port makefiles can augment
178# them.
179
180MKMODULESENV+=	MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
181MKMODULESENV+=	MACHINE_CPUARCH=${MACHINE_CPUARCH}
182.if (${KERN_IDENT} == LINT)
183MKMODULESENV+=	ALL_MODULES=LINT
184.endif
185.if defined(MODULES_OVERRIDE)
186MKMODULESENV+=	MODULES_OVERRIDE="${MODULES_OVERRIDE}"
187.endif
188.if defined(WITHOUT_MODULES)
189MKMODULESENV+=	WITHOUT_MODULES="${WITHOUT_MODULES}"
190.endif
191.if defined(DEBUG)
192MKMODULESENV+=	DEBUG_FLAGS="${DEBUG}"
193.endif
194
195# Are various things configured?
196DDB_ENABLED!=	grep DDB opt_ddb.h || true ; echo
197DTR_ENABLED!=	grep KDTRACE_FRAME opt_kdtrace.h || true ; echo
198HWPMC_ENABLED!=	grep HWPMC opt_hwpmc_hooks.h || true ; echo
199