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