FreeBSD/Linux Kernel Cross Reference
sys/conf/kern.pre.mk
1 # $FreeBSD: src/sys/conf/kern.pre.mk,v 1.101 2008/09/23 03:16:54 kmacy Exp $
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 # Can be overridden by makeoptions or /etc/make.conf
9 KERNEL_KO?= kernel
10 KERNEL?= kernel
11 KODIR?= /boot/${KERNEL}
12 LDSCRIPT_NAME?= ldscript.$M
13 LDSCRIPT?= $S/conf/${LDSCRIPT_NAME}
14
15 M= ${MACHINE_ARCH}
16
17 AWK?= awk
18 LINT?= lint
19 NM?= nm
20 OBJCOPY?= objcopy
21 SIZE?= size
22
23 .if ${CC} == "icc"
24 COPTFLAGS?= -O
25 .else
26 . if defined(DEBUG)
27 _MINUS_O= -O
28 . else
29 _MINUS_O= -O2
30 . endif
31 . if ${MACHINE_ARCH} == "amd64"
32 COPTFLAGS?=-O2 -frename-registers -pipe
33 . else
34 COPTFLAGS?=${_MINUS_O} -pipe
35 . endif
36 . if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)
37 COPTFLAGS+= -fno-strict-aliasing
38 . endif
39 .endif
40 .if !defined(NO_CPU_COPTFLAGS)
41 . if ${CC} == "icc"
42 COPTFLAGS+= ${_ICC_CPUCFLAGS:C/(-x[^M^K^W]+)[MKW]+|-x[MKW]+/\1/}
43 . else
44 COPTFLAGS+= ${_CPUCFLAGS}
45 . endif
46 .endif
47 .if ${CC} == "icc"
48 C_DIALECT=
49 NOSTDINC= -X
50 .else
51 C_DIALECT= -std=c99
52 NOSTDINC= -nostdinc
53 .endif
54
55 INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S
56
57 # This hack lets us use the OpenBSD altq code without spamming a new
58 # include path into contrib'ed source files.
59 INCLUDES+= -I$S/contrib/altq
60
61 .if make(depend) || make(kernel-depend)
62
63 # ... and the same for ipfilter
64 INCLUDES+= -I$S/contrib/ipfilter
65
66 # ... and the same for pf
67 INCLUDES+= -I$S/contrib/pf
68
69 # ... and the same for Atheros HAL
70 INCLUDES+= -I$S/dev/ath
71
72 # ... and the same for the NgATM stuff
73 INCLUDES+= -I$S/contrib/ngatm
74
75 # .. and the same for twa
76 INCLUDES+= -I$S/dev/twa
77
78 # ... and XFS
79 INCLUDES+= -I$S/gnu/fs/xfs/FreeBSD -I$S/gnu/fs/xfs/FreeBSD/support -I$S/gnu/fs/xfs
80
81 # ... and OpenSolaris
82 INCLUDES+= -I$S/contrib/opensolaris/compat
83
84 # ... and the same for cxgb
85 INCLUDES+= -I$S/dev/cxgb
86
87 .endif
88
89 CFLAGS= ${COPTFLAGS} ${C_DIALECT} ${DEBUG} ${CWARNFLAGS}
90 CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
91 .if ${CC} != "icc"
92 CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT}
93 CFLAGS+= --param inline-unit-growth=100
94 CFLAGS+= --param large-function-growth=1000
95 WERROR?= -Werror
96 .endif
97
98 # XXX LOCORE means "don't declare C stuff" not "for locore.s".
99 ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
100
101 .if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
102 .if ${CC} == "icc"
103 .error "Profiling doesn't work with icc yet"
104 .endif
105 CFLAGS+= -DGPROF -falign-functions=16
106 .if ${PROFLEVEL} >= 2
107 CFLAGS+= -DGPROF4 -DGUPROF
108 PROF= -pg -mprofiler-epilogue
109 .else
110 PROF= -pg
111 .endif
112 .endif
113 DEFINED_PROF= ${PROF}
114
115 # Put configuration-specific C flags last (except for ${PROF}) so that they
116 # can override the others.
117 CFLAGS+= ${CONF_CFLAGS}
118
119 # Optional linting. This can be overridden in /etc/make.conf.
120 LINTFLAGS= ${LINTOBJKERNFLAGS}
121
122 NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
123 NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
124 PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
125 NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
126
127 NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
128 ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
129
130 .if defined(CTFCONVERT)
131 NORMAL_CTFCONVERT= ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
132 .else
133 NORMAL_CTFCONVERT=
134 .endif
135
136 NORMAL_LINT= ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
137
138 GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
139 SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
140 SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
141 SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
142 SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
143 SYSTEM_OBJS+= hack.So
144 .if defined(CTFMERGE)
145 SYSTEM_CTFMERGE= ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o
146 LD+= -g
147 .endif
148 SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} \
149 -warn-common -export-dynamic -dynamic-linker /red/herring \
150 -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
151 SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
152 ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
153 SYSTEM_DEP+= ${LDSCRIPT}
154
155 # MKMODULESENV is set here so that port makefiles can augment
156 # them.
157
158 MKMODULESENV= MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
159 .if (${KERN_IDENT} == LINT)
160 MKMODULESENV+= ALL_MODULES=LINT
161 .endif
162 .if defined(MODULES_OVERRIDE)
163 MKMODULESENV+= MODULES_OVERRIDE="${MODULES_OVERRIDE}"
164 .endif
165 .if defined(DEBUG)
166 MKMODULESENV+= DEBUG_FLAGS="${DEBUG}"
167 .endif
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