xref: /freebsd/sys/conf/kern.pre.mk (revision a783ff949cafa0efc59d68ca19224e62d73616b9)
1# $FreeBSD$
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
19COPTFLAGS?=-O -pipe
20.if !defined(NO_CPU_COPTFLAGS)
21COPTFLAGS+= ${_CPUCFLAGS}
22.endif
23INCLUDES= -nostdinc -I- ${INCLMAGIC} -I. -I$S
24
25# This hack lets us use the Intel ACPICA code without spamming a new
26# include path into 100+ source files.
27INCLUDES+= -I$S/contrib/dev/acpica
28
29# ... and the same for ipfilter
30INCLUDES+= -I$S/contrib/ipfilter
31
32# ... and the same for Atheros HAL
33INCLUDES+= -I$S/contrib/dev/ath -I$S/contrib/dev/ath/freebsd
34
35# ... and the same for the NgATM stuff
36INCLUDES+= -I$S/contrib/ngatm
37
38COPTS=	${INCLUDES} -D_KERNEL -include opt_global.h
39CFLAGS=	${COPTFLAGS} ${CWARNFLAGS} ${DEBUG} ${COPTS}
40CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT} -fno-strict-aliasing
41WERROR?= -Werror
42
43# XXX LOCORE means "don't declare C stuff" not "for locore.s".
44ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
45
46.if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
47CFLAGS+=	-DGPROF -falign-functions=16
48.if ${PROFLEVEL} >= 2
49CFLAGS+=	-DGPROF4 -DGUPROF
50PROF=	-finstrument-functions
51.else
52PROF=	-pg
53.endif
54.endif
55DEFINED_PROF=	${PROF}
56
57# Put configuration-specific C flags last (except for ${PROF}) so that they
58# can override the others.
59CFLAGS+=	${CONF_CFLAGS}
60
61# Optional linting. This can be overridden in /etc/make.conf.
62LINTFLAGS=	${LINTOBJKERNFLAGS}
63
64NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
65NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
66PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
67NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
68
69NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
70	  ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
71
72NORMAL_LINT=	${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
73
74GEN_CFILES= $S/$M/$M/genassym.c
75SYSTEM_CFILES= config.c env.c hints.c majors.c vnode_if.c
76SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
77SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
78SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
79SYSTEM_OBJS+= hack.So
80SYSTEM_LD= @${LD} -Bdynamic -T $S/conf/ldscript.$M \
81	-warn-common -export-dynamic -dynamic-linker /red/herring \
82	-o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
83SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
84	${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
85SYSTEM_DEP+= $S/conf/ldscript.$M
86
87# MKMODULESENV is set here so that port makefiles can augment
88# them.
89
90MKMODULESENV=	MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
91.if (${KERN_IDENT} == LINT)
92MKMODULESENV+=	ALL_MODULES=LINT
93.endif
94.if defined(MODULES_OVERRIDE)
95MKMODULESENV+=	MODULES_OVERRIDE="${MODULES_OVERRIDE}"
96.endif
97.if defined(DEBUG)
98MKMODULESENV+=	DEBUG="${DEBUG}" DEBUG_FLAGS="${DEBUG}"
99.endif
100