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# 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. 12SRCCONF?= /etc/src.conf 13.if (exists(${SRCCONF}) || ${SRCCONF} != "/etc/src.conf") && !target(_srcconf_included_) 14.include "${SRCCONF}" 15_srcconf_included_: 16.endif 17 18.include <bsd.own.mk> 19.include <bsd.compiler.mk> 20.include "kern.opts.mk" 21 22# The kernel build always occurs in the object directory which is .CURDIR. 23.if ${.MAKE.MODE:Unormal:Mmeta} 24.MAKE.MODE+= curdirOk=yes 25.endif 26 27# The kernel build always expects .OBJDIR=.CURDIR. 28.OBJDIR: ${.CURDIR} 29 30.if defined(NO_OBJWALK) || ${MK_AUTO_OBJ} == "yes" 31NO_OBJWALK= t 32NO_MODULES_OBJ= t 33.endif 34.if !defined(NO_OBJWALK) 35_obj= obj 36.endif 37 38# Can be overridden by makeoptions or /etc/make.conf 39KERNEL_KO?= kernel 40KERNEL?= kernel 41KODIR?= /boot/${KERNEL} 42LDSCRIPT_NAME?= ldscript.$M 43LDSCRIPT?= $S/conf/${LDSCRIPT_NAME} 44 45M= ${MACHINE} 46 47AWK?= awk 48CP?= cp 49NM?= nm 50OBJCOPY?= objcopy 51SIZE?= size 52 53.if defined(DEBUG) 54_MINUS_O= -O 55CTFFLAGS+= -g 56.else 57.if ${MACHINE_CPUARCH} == "powerpc" 58_MINUS_O= -O # gcc miscompiles some code at -O2 59.else 60_MINUS_O= -O2 61.endif 62.endif 63.if ${MACHINE_CPUARCH} == "amd64" 64.if ${COMPILER_TYPE} == "clang" 65COPTFLAGS?=-O2 -pipe 66.else 67COPTFLAGS?=-O2 -frename-registers -pipe 68.endif 69.else 70COPTFLAGS?=${_MINUS_O} -pipe 71.endif 72.if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing) 73COPTFLAGS+= -fno-strict-aliasing 74.endif 75.if !defined(NO_CPU_COPTFLAGS) 76COPTFLAGS+= ${_CPUCFLAGS} 77.endif 78NOSTDINC= -nostdinc 79 80INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S -I$S/contrib/ck/include 81 82CFLAGS= ${COPTFLAGS} ${DEBUG} 83CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h 84CFLAGS_PARAM_INLINE_UNIT_GROWTH?=100 85CFLAGS_PARAM_LARGE_FUNCTION_GROWTH?=1000 86.if ${MACHINE_CPUARCH} == "mips" 87CFLAGS_ARCH_PARAMS?=--param max-inline-insns-single=1000 -DMACHINE_ARCH='"${MACHINE_ARCH}"' 88.endif 89CFLAGS.gcc+= -fno-common -fms-extensions -finline-limit=${INLINE_LIMIT} 90CFLAGS.gcc+= --param inline-unit-growth=${CFLAGS_PARAM_INLINE_UNIT_GROWTH} 91CFLAGS.gcc+= --param large-function-growth=${CFLAGS_PARAM_LARGE_FUNCTION_GROWTH} 92.if defined(CFLAGS_ARCH_PARAMS) 93CFLAGS.gcc+=${CFLAGS_ARCH_PARAMS} 94.endif 95WERROR?= -Werror 96 97# XXX LOCORE means "don't declare C stuff" not "for locore.s". 98ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS} ${ASM_CFLAGS.${.IMPSRC:T}} 99 100.if defined(PROFLEVEL) && ${PROFLEVEL} >= 1 101CFLAGS+= -DGPROF 102CFLAGS.gcc+= -falign-functions=16 103.if ${PROFLEVEL} >= 2 104CFLAGS+= -DGPROF4 -DGUPROF 105PROF= -pg 106.if ${COMPILER_TYPE} == "gcc" 107PROF+= -mprofiler-epilogue 108.endif 109.else 110PROF= -pg 111.endif 112.endif 113DEFINED_PROF= ${PROF} 114 115# Put configuration-specific C flags last (except for ${PROF}) so that they 116# can override the others. 117CFLAGS+= ${CONF_CFLAGS} 118 119.if defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mbuild-id} 120LDFLAGS+= -Wl,--build-id=sha1 121.endif 122 123.if ${MACHINE_CPUARCH} == "amd64" 124.if defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == "" 125.error amd64 kernel requires linker ifunc support 126.endif 127LDFLAGS+= -Wl,-z max-page-size=2097152 -Wl,-z common-page-size=4096 128.endif 129 130NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 131NORMAL_S= ${CC:N${CCACHE_BIN}} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC} 132PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC} 133NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC} 134 135NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \ 136 ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c 137 138NORMAL_FW= uudecode -o ${.TARGET} ${.ALLSRC} 139NORMAL_FWO= ${LD} -b binary --no-warn-mismatch -d -warn-common -r \ 140 -m ${LD_EMULATION} -o ${.TARGET} ${.ALLSRC:M*.fw} 141 142# for ZSTD in the kernel (include zstd/lib/freebsd before other CFLAGS) 143ZSTD_C= ${CC} -c -DZSTD_HEAPMODE=1 -I$S/contrib/zstd/lib/freebsd ${CFLAGS} -I$S/contrib/zstd/lib -I$S/contrib/zstd/lib/common ${WERROR} -Wno-inline -Wno-missing-prototypes ${PROF} -U__BMI__ ${.IMPSRC} 144 145# Common for dtrace / zfs 146CDDL_CFLAGS= -DFREEBSD_NAMECACHE -nostdinc -I$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 147CDDL_CFLAGS+= -include $S/cddl/compat/opensolaris/sys/debug_compat.h 148CDDL_C= ${CC} -c ${CDDL_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 149 150# Special flags for managing the compat compiles for ZFS 151ZFS_CFLAGS= -DBUILDING_ZFS -I$S/cddl/contrib/opensolaris/uts/common/fs/zfs 152ZFS_CFLAGS+= -I$S/cddl/contrib/opensolaris/uts/common/fs/zfs/lua 153ZFS_CFLAGS+= -I$S/cddl/contrib/opensolaris/uts/common/zmod 154ZFS_CFLAGS+= -I$S/cddl/contrib/opensolaris/common/zfs 155ZFS_CFLAGS+= ${CDDL_CFLAGS} 156ZFS_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${ZFS_CFLAGS} 157ZFS_C= ${CC} -c ${ZFS_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 158ZFS_S= ${CC} -c ${ZFS_ASM_CFLAGS} ${WERROR} ${.IMPSRC} 159 160# Special flags for managing the compat compiles for DTrace 161DTRACE_CFLAGS= -DBUILDING_DTRACE ${CDDL_CFLAGS} -I$S/cddl/dev/dtrace -I$S/cddl/dev/dtrace/${MACHINE_CPUARCH} 162.if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386" 163DTRACE_CFLAGS+= -I$S/cddl/contrib/opensolaris/uts/intel -I$S/cddl/dev/dtrace/x86 164.endif 165DTRACE_CFLAGS+= -I$S/cddl/contrib/opensolaris/common/util -I$S -DDIS_MEM -DSMP 166DTRACE_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${DTRACE_CFLAGS} 167DTRACE_C= ${CC} -c ${DTRACE_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 168DTRACE_S= ${CC} -c ${DTRACE_ASM_CFLAGS} ${WERROR} ${.IMPSRC} 169 170# Special flags for managing the compat compiles for DTrace/FBT 171FBT_CFLAGS= -DBUILDING_DTRACE -nostdinc -I$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} 172.if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386" 173FBT_CFLAGS+= -I$S/cddl/dev/fbt/x86 174.endif 175FBT_C= ${CC} -c ${FBT_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 176 177.if ${MK_CTF} != "no" 178NORMAL_CTFCONVERT= ${CTFCONVERT} ${CTFFLAGS} ${.TARGET} 179.elif ${MAKE_VERSION} >= 5201111300 180NORMAL_CTFCONVERT= 181.else 182NORMAL_CTFCONVERT= @: 183.endif 184 185# Linux Kernel Programming Interface C-flags 186LINUXKPI_INCLUDES= -I$S/compat/linuxkpi/common/include 187LINUXKPI_C= ${NORMAL_C} ${LINUXKPI_INCLUDES} 188 189# Infiniband C flags. Correct include paths and omit errors that linux 190# does not honor. 191OFEDINCLUDES= -I$S/ofed/include -I$S/ofed/include/uapi ${LINUXKPI_INCLUDES} 192OFEDNOERR= -Wno-cast-qual -Wno-pointer-arith 193OFEDCFLAGS= ${CFLAGS:N-I*} -DCONFIG_INFINIBAND_USER_MEM \ 194 ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR} 195OFED_C_NOIMP= ${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF} 196OFED_C= ${OFED_C_NOIMP} ${.IMPSRC} 197 198GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/} 199SYSTEM_CFILES= config.c env.c hints.c vnode_if.c 200SYSTEM_DEP= Makefile ${SYSTEM_OBJS} 201SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS} 202SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o} 203SYSTEM_OBJS+= hack.pico 204 205MD_ROOT_SIZE_CONFIGURED!= grep MD_ROOT_SIZE opt_md.h || true ; echo 206.if ${MFS_IMAGE:Uno} != "no" 207.if empty(MD_ROOT_SIZE_CONFIGURED) 208SYSTEM_OBJS+= embedfs_${MFS_IMAGE:T:R}.o 209.endif 210.endif 211SYSTEM_LD= @${LD} -m ${LD_EMULATION} -Bdynamic -T ${LDSCRIPT} ${_LDFLAGS} \ 212 --no-warn-mismatch --warn-common --export-dynamic \ 213 --dynamic-linker /red/herring \ 214 -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o 215SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \ 216 ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET} 217SYSTEM_DEP+= ${LDSCRIPT} 218 219# Calculate path for .m files early, if needed. 220.if !defined(NO_MODULES) && !defined(__MPATH) && !make(install) && \ 221 (empty(.MAKEFLAGS:M-V) || defined(NO_SKIP_MPATH)) 222__MPATH!=find ${S:tA}/ -name \*_if.m 223.endif 224 225# MKMODULESENV is set here so that port makefiles can augment 226# them. 227 228MKMODULESENV+= MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR} 229MKMODULESENV+= MACHINE_CPUARCH=${MACHINE_CPUARCH} 230MKMODULESENV+= MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH} 231MKMODULESENV+= MODULES_EXTRA="${MODULES_EXTRA}" WITHOUT_MODULES="${WITHOUT_MODULES}" 232MKMODULESENV+= ARCH_FLAGS="${ARCH_FLAGS}" 233.if (${KERN_IDENT} == LINT) 234MKMODULESENV+= ALL_MODULES=LINT 235.endif 236.if defined(MODULES_OVERRIDE) 237MKMODULESENV+= MODULES_OVERRIDE="${MODULES_OVERRIDE}" 238.endif 239.if defined(DEBUG) 240MKMODULESENV+= DEBUG_FLAGS="${DEBUG}" 241.endif 242.if !defined(NO_MODULES) 243MKMODULESENV+= __MPATH="${__MPATH}" 244.endif 245 246# Architecture and output format arguments for objdump to convert image to 247# object file 248 249.if ${MFS_IMAGE:Uno} != "no" 250.if empty(MD_ROOT_SIZE_CONFIGURED) 251.if !defined(EMBEDFS_FORMAT.${MACHINE_ARCH}) 252EMBEDFS_FORMAT.${MACHINE_ARCH}!= awk -F'"' '/OUTPUT_FORMAT/ {print $$2}' ${LDSCRIPT} 253.if empty(EMBEDFS_FORMAT.${MACHINE_ARCH}) 254.undef EMBEDFS_FORMAT.${MACHINE_ARCH} 255.endif 256.endif 257 258.if !defined(EMBEDFS_ARCH.${MACHINE_ARCH}) 259EMBEDFS_ARCH.${MACHINE_ARCH}!= sed -n '/OUTPUT_ARCH/s/.*(\(.*\)).*/\1/p' ${LDSCRIPT} 260.if empty(EMBEDFS_ARCH.${MACHINE_ARCH}) 261.undef EMBEDFS_ARCH.${MACHINE_ARCH} 262.endif 263.endif 264 265EMBEDFS_FORMAT.arm?= elf32-littlearm 266EMBEDFS_FORMAT.armv6?= elf32-littlearm 267EMBEDFS_FORMAT.armv7?= elf32-littlearm 268EMBEDFS_FORMAT.aarch64?= elf64-littleaarch64 269EMBEDFS_FORMAT.mips?= elf32-tradbigmips 270EMBEDFS_FORMAT.mipsel?= elf32-tradlittlemips 271EMBEDFS_FORMAT.mips64?= elf64-tradbigmips 272EMBEDFS_FORMAT.mips64el?= elf64-tradlittlemips 273EMBEDFS_FORMAT.riscv?= elf64-littleriscv 274.endif 275.endif 276 277# Detect kernel config options that force stack frames to be turned on. 278DDB_ENABLED!= grep DDB opt_ddb.h || true ; echo 279DTR_ENABLED!= grep KDTRACE_FRAME opt_kdtrace.h || true ; echo 280HWPMC_ENABLED!= grep HWPMC opt_hwpmc_hooks.h || true ; echo 281