3 # Part of a unified Makefile for building kernels. This part contains all
4 # of the definitions that need to be before %BEFORE_DEPEND.
6 # Allow user to configure things that only effect src tree builds.
7 # Note: This is duplicated from src.sys.mk to ensure that we include
8 # /etc/src.conf when building the kernel. Kernels can be built without
9 # the rest of /usr/src, but they still always process SRCCONF even though
10 # the normal mechanisms to prevent that (compiling out of tree) won't
11 # work. To ensure they do work, we have to duplicate thee few lines here.
12 SRCCONF?= /etc/src.conf
13 .if (exists(${SRCCONF}) || ${SRCCONF} != "/etc/src.conf") && !target(_srcconf_included_)
19 .include <bsd.compiler.mk>
20 .include "kern.opts.mk"
22 # Can be overridden by makeoptions or /etc/make.conf
25 KODIR?= /boot/${KERNEL}
26 LDSCRIPT_NAME?= ldscript.$M
27 LDSCRIPT?= $S/conf/${LDSCRIPT_NAME}
42 .if ${MACHINE_CPUARCH} == "powerpc"
43 _MINUS_O= -O # gcc miscompiles some code at -O2
48 .if ${MACHINE_CPUARCH} == "amd64"
49 .if ${COMPILER_TYPE} == "clang"
52 COPTFLAGS?=-O2 -frename-registers -pipe
55 COPTFLAGS?=${_MINUS_O} -pipe
57 .if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)
58 COPTFLAGS+= -fno-strict-aliasing
60 .if !defined(NO_CPU_COPTFLAGS)
61 COPTFLAGS+= ${_CPUCFLAGS}
65 INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S
67 # This hack lets us use the OpenBSD altq code without spamming a new
68 # include path into contrib'ed source files.
69 INCLUDES+= -I$S/contrib/altq
71 .if make(depend) || make(kernel-depend)
73 # ... and the same for ipfilter
74 INCLUDES+= -I$S/contrib/ipfilter
76 # ... and the same for ath
77 INCLUDES+= -I$S/dev/ath -I$S/dev/ath/ath_hal -I$S/contrib/dev/ath/ath_hal
79 # ... and the same for the NgATM stuff
80 INCLUDES+= -I$S/contrib/ngatm
82 # ... and the same for vchiq
83 INCLUDES+= -I$S/contrib/vchiq
85 # ... and the same for twa
86 INCLUDES+= -I$S/dev/twa
88 # ... and the same for cxgb and cxgbe
89 INCLUDES+= -I$S/dev/cxgb -I$S/dev/cxgbe
93 CFLAGS= ${COPTFLAGS} ${DEBUG} ${CWARNFLAGS}
94 CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
95 CFLAGS_PARAM_INLINE_UNIT_GROWTH?=100
96 CFLAGS_PARAM_LARGE_FUNCTION_GROWTH?=1000
97 .if ${MACHINE_CPUARCH} == "mips"
98 CFLAGS_ARCH_PARAMS?=--param max-inline-insns-single=1000
100 CFLAGS.gcc+= -fno-common -fms-extensions -finline-limit=${INLINE_LIMIT}
101 CFLAGS.gcc+= --param inline-unit-growth=${CFLAGS_PARAM_INLINE_UNIT_GROWTH}
102 CFLAGS.gcc+= --param large-function-growth=${CFLAGS_PARAM_LARGE_FUNCTION_GROWTH}
103 .if defined(CFLAGS_ARCH_PARAMS)
104 CFLAGS.gcc+=${CFLAGS_ARCH_PARAMS}
108 # XXX LOCORE means "don't declare C stuff" not "for locore.s".
109 ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS} ${ASM_CFLAGS.${.IMPSRC:T}}
111 .if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
113 CFLAGS.gcc+= -falign-functions=16
114 .if ${PROFLEVEL} >= 2
115 CFLAGS+= -DGPROF4 -DGUPROF
117 .if ${COMPILER_TYPE} == "gcc"
118 PROF+= -mprofiler-epilogue
124 DEFINED_PROF= ${PROF}
126 # Put configuration-specific C flags last (except for ${PROF}) so that they
127 # can override the others.
128 CFLAGS+= ${CONF_CFLAGS}
130 # Optional linting. This can be overridden in /etc/make.conf.
131 LINTFLAGS= ${LINTOBJKERNFLAGS}
133 NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
134 NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
135 PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
136 NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
138 NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
139 ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
141 NORMAL_FW= uudecode -o ${.TARGET} ${.ALLSRC}
142 NORMAL_FWO= ${LD} -b binary --no-warn-mismatch -d -warn-common -r \
143 -o ${.TARGET} ${.ALLSRC:M*.fw}
145 # Special flags for managing the compat compiles for ZFS
146 ZFS_CFLAGS= -DFREEBSD_NAMECACHE -DBUILDING_ZFS -nostdinc -I$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
147 ZFS_CFLAGS+= -include $S/cddl/compat/opensolaris/sys/debug_compat.h
148 ZFS_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${ZFS_CFLAGS}
149 ZFS_C= ${CC} -c ${ZFS_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
150 ZFS_S= ${CC} -c ${ZFS_ASM_CFLAGS} ${WERROR} ${.IMPSRC}
152 .if ${MK_CTF} != "no"
153 NORMAL_CTFCONVERT= ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
154 .elif ${MAKE_VERSION} >= 5201111300
157 NORMAL_CTFCONVERT= @:
160 NORMAL_LINT= ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
162 # Infiniband C flags. Correct include paths and omit errors that linux
164 OFEDINCLUDES= -I$S/ofed/include/
165 OFEDNOERR= -Wno-cast-qual -Wno-pointer-arith
166 OFEDCFLAGS= ${CFLAGS:N-I*} ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR}
167 OFED_C_NOIMP= ${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF}
168 OFED_C= ${OFED_C_NOIMP} ${.IMPSRC}
170 GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
171 SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
172 SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
173 SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
174 SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
175 SYSTEM_OBJS+= hack.So
176 SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} ${_LDFLAGS} --no-warn-mismatch \
177 --warn-common --export-dynamic --dynamic-linker /red/herring \
178 -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
179 SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
180 ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
181 SYSTEM_DEP+= ${LDSCRIPT}
183 # MKMODULESENV is set here so that port makefiles can augment
186 MKMODULESENV+= MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
187 MKMODULESENV+= MACHINE_CPUARCH=${MACHINE_CPUARCH}
188 MKMODULESENV+= MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH}
189 MKMODULESENV+= MODULES_EXTRA="${MODULES_EXTRA}" WITHOUT_MODULES="${WITHOUT_MODULES}"
190 .if (${KERN_IDENT} == LINT)
191 MKMODULESENV+= ALL_MODULES=LINT
193 .if defined(MODULES_OVERRIDE)
194 MKMODULESENV+= MODULES_OVERRIDE="${MODULES_OVERRIDE}"
197 MKMODULESENV+= DEBUG_FLAGS="${DEBUG}"
200 # Detect kernel config options that force stack frames to be turned on.
201 DDB_ENABLED!= grep DDB opt_ddb.h || true ; echo
202 DTR_ENABLED!= grep KDTRACE_FRAME opt_kdtrace.h || true ; echo
203 HWPMC_ENABLED!= grep HWPMC opt_hwpmc_hooks.h || true ; echo