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 # The kernel build always occurs in the object directory which is .CURDIR.
23 .if ${.MAKE.MODE:Unormal:Mmeta}
24 .MAKE.MODE+= curdirOk=yes
27 # Can be overridden by makeoptions or /etc/make.conf
30 KODIR?= /boot/${KERNEL}
31 LDSCRIPT_NAME?= ldscript.$M
32 LDSCRIPT?= $S/conf/${LDSCRIPT_NAME}
47 .if ${MACHINE_CPUARCH} == "powerpc"
48 _MINUS_O= -O # gcc miscompiles some code at -O2
53 .if ${MACHINE_CPUARCH} == "amd64"
54 .if ${COMPILER_TYPE} == "clang"
57 COPTFLAGS?=-O2 -frename-registers -pipe
60 COPTFLAGS?=${_MINUS_O} -pipe
62 .if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)
63 COPTFLAGS+= -fno-strict-aliasing
65 .if !defined(NO_CPU_COPTFLAGS)
66 COPTFLAGS+= ${_CPUCFLAGS}
70 INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S
72 CFLAGS= ${COPTFLAGS} ${DEBUG}
73 CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
74 CFLAGS_PARAM_INLINE_UNIT_GROWTH?=100
75 CFLAGS_PARAM_LARGE_FUNCTION_GROWTH?=1000
76 .if ${MACHINE_CPUARCH} == "mips"
77 CFLAGS_ARCH_PARAMS?=--param max-inline-insns-single=1000
79 CFLAGS.gcc+= -fno-common -fms-extensions -finline-limit=${INLINE_LIMIT}
80 CFLAGS.gcc+= --param inline-unit-growth=${CFLAGS_PARAM_INLINE_UNIT_GROWTH}
81 CFLAGS.gcc+= --param large-function-growth=${CFLAGS_PARAM_LARGE_FUNCTION_GROWTH}
82 .if defined(CFLAGS_ARCH_PARAMS)
83 CFLAGS.gcc+=${CFLAGS_ARCH_PARAMS}
87 # XXX LOCORE means "don't declare C stuff" not "for locore.s".
88 ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS} ${ASM_CFLAGS.${.IMPSRC:T}}
90 .if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
92 CFLAGS.gcc+= -falign-functions=16
94 CFLAGS+= -DGPROF4 -DGUPROF
96 .if ${COMPILER_TYPE} == "gcc"
97 PROF+= -mprofiler-epilogue
103 DEFINED_PROF= ${PROF}
105 # Put configuration-specific C flags last (except for ${PROF}) so that they
106 # can override the others.
107 CFLAGS+= ${CONF_CFLAGS}
109 # Optional linting. This can be overridden in /etc/make.conf.
110 LINTFLAGS= ${LINTOBJKERNFLAGS}
112 NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
113 NORMAL_S= ${CC:N${CCACHE_BIN}} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
114 PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
115 NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
117 NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
118 ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
120 NORMAL_FW= uudecode -o ${.TARGET} ${.ALLSRC}
121 NORMAL_FWO= ${LD} -b binary --no-warn-mismatch -d -warn-common -r \
122 -m ${LD_EMULATION} -o ${.TARGET} ${.ALLSRC:M*.fw}
124 # Common for dtrace / zfs
125 CDDL_CFLAGS= -DFREEBSD_NAMECACHE -nostdinc -I$S/cddl/compat/opensolaris -I$S/cddl/contrib/opensolaris/uts/common -I$S -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
126 CDDL_CFLAGS+= -include $S/cddl/compat/opensolaris/sys/debug_compat.h
127 CDDL_C= ${CC} -c ${CDDL_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
129 # Special flags for managing the compat compiles for ZFS
130 ZFS_CFLAGS= -DBUILDING_ZFS -I$S/cddl/contrib/opensolaris/uts/common/fs/zfs -I$S/cddl/contrib/opensolaris/uts/common/zmod -I$S/cddl/contrib/opensolaris/common/zfs ${CDDL_CFLAGS}
131 ZFS_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${ZFS_CFLAGS}
132 ZFS_C= ${CC} -c ${ZFS_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
133 ZFS_S= ${CC} -c ${ZFS_ASM_CFLAGS} ${WERROR} ${.IMPSRC}
135 # Special flags for managing the compat compiles for DTrace
136 DTRACE_CFLAGS= -DBUILDING_DTRACE ${CDDL_CFLAGS} -I$S/cddl/dev/dtrace -I$S/cddl/dev/dtrace/${MACHINE_CPUARCH}
137 .if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
138 DTRACE_CFLAGS+= -I$S/cddl/contrib/opensolaris/uts/intel -I$S/cddl/dev/dtrace/x86
140 DTRACE_CFLAGS+= -I$S/cddl/contrib/opensolaris/common/util -I$S -DDIS_MEM -DSMP
141 DTRACE_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${DTRACE_CFLAGS}
142 DTRACE_C= ${CC} -c ${DTRACE_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
143 DTRACE_S= ${CC} -c ${DTRACE_ASM_CFLAGS} ${WERROR} ${.IMPSRC}
145 # Special flags for managing the compat compiles for DTrace/FBT
146 FBT_CFLAGS= -DBUILDING_DTRACE -nostdinc -I$S/cddl/dev/fbt/${MACHINE_CPUARCH} -I$S/cddl/dev/fbt -I$S/cddl/compat/opensolaris -I$S/cddl/contrib/opensolaris/uts/common -I$S ${CDDL_CFLAGS}
147 .if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
148 FBT_CFLAGS+= -I$S/cddl/dev/fbt/x86
150 FBT_C= ${CC} -c ${FBT_CFLAGS} ${WERROR} ${PROF} ${.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]*} ${.IMPSRC}
162 # Linux Kernel Programming Interface C-flags
163 LINUXKPI_INCLUDES= -I$S/compat/linuxkpi/common/include
164 LINUXKPI_C= ${NORMAL_C} ${LINUXKPI_INCLUDES}
166 # Infiniband C flags. Correct include paths and omit errors that linux
168 OFEDINCLUDES= -I$S/ofed/include ${LINUXKPI_INCLUDES}
169 OFEDNOERR= -Wno-cast-qual -Wno-pointer-arith
170 OFEDCFLAGS= ${CFLAGS:N-I*} ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR}
171 OFED_C_NOIMP= ${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF}
172 OFED_C= ${OFED_C_NOIMP} ${.IMPSRC}
174 GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
175 SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
176 SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
177 SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
178 SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
179 SYSTEM_OBJS+= hack.pico
181 MD_ROOT_SIZE_CONFIGURED!= grep MD_ROOT_SIZE opt_md.h || true ; echo
182 .if ${MFS_IMAGE:Uno} != "no"
183 .if empty(MD_ROOT_SIZE_CONFIGURED)
184 SYSTEM_OBJS+= embedfs_${MFS_IMAGE:T:R}.o
187 SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} ${_LDFLAGS} --no-warn-mismatch \
188 --warn-common --export-dynamic --dynamic-linker /red/herring \
189 -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
190 SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
191 ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
192 SYSTEM_DEP+= ${LDSCRIPT}
194 # Calculate path for .m files early, if needed.
195 .if !defined(NO_MODULES) && !defined(__MPATH)
196 __MPATH!=find ${S:tA}/ -name \*_if.m
199 # MKMODULESENV is set here so that port makefiles can augment
202 MKMODULESENV+= MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
203 MKMODULESENV+= MACHINE_CPUARCH=${MACHINE_CPUARCH}
204 MKMODULESENV+= MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH}
205 MKMODULESENV+= MODULES_EXTRA="${MODULES_EXTRA}" WITHOUT_MODULES="${WITHOUT_MODULES}"
206 .if (${KERN_IDENT} == LINT)
207 MKMODULESENV+= ALL_MODULES=LINT
209 .if defined(MODULES_OVERRIDE)
210 MKMODULESENV+= MODULES_OVERRIDE="${MODULES_OVERRIDE}"
213 MKMODULESENV+= DEBUG_FLAGS="${DEBUG}"
215 .if !defined(NO_MODULES)
216 MKMODULESENV+= __MPATH="${__MPATH}"
219 # Architecture and output format arguments for objdump to convert image to
222 .if ${MFS_IMAGE:Uno} != "no"
223 .if empty(MD_ROOT_SIZE_CONFIGURED)
224 .if !defined(EMBEDFS_FORMAT.${MACHINE_ARCH})
225 EMBEDFS_FORMAT.${MACHINE_ARCH}!= awk -F'"' '/OUTPUT_FORMAT/ {print $$2}' ${LDSCRIPT}
226 .if empty(EMBEDFS_FORMAT.${MACHINE_ARCH})
227 .undef EMBEDFS_FORMAT.${MACHINE_ARCH}
231 .if !defined(EMBEDFS_ARCH.${MACHINE_ARCH})
232 EMBEDFS_ARCH.${MACHINE_ARCH}!= sed -n '/OUTPUT_ARCH/s/.*(\(.*\)).*/\1/p' ${LDSCRIPT}
233 .if empty(EMBEDFS_ARCH.${MACHINE_ARCH})
234 .undef EMBEDFS_ARCH.${MACHINE_ARCH}
238 EMBEDFS_FORMAT.arm?= elf32-littlearm
239 EMBEDFS_FORMAT.armv6?= elf32-littlearm
240 EMBEDFS_FORMAT.mips?= elf32-tradbigmips
241 EMBEDFS_FORMAT.mipsel?= elf32-tradlittlemips
242 EMBEDFS_FORMAT.mips64?= elf64-tradbigmips
243 EMBEDFS_FORMAT.mips64el?= elf64-tradlittlemips
244 EMBEDFS_FORMAT.riscv?= elf64-littleriscv
248 # Detect kernel config options that force stack frames to be turned on.
249 DDB_ENABLED!= grep DDB opt_ddb.h || true ; echo
250 DTR_ENABLED!= grep KDTRACE_FRAME opt_kdtrace.h || true ; echo
251 HWPMC_ENABLED!= grep HWPMC opt_hwpmc_hooks.h || true ; echo