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.if defined(NO_OBJ) || ${MK_AUTO_OBJ} == "yes" 28NO_OBJ= t 29NO_MODULES_OBJ= t 30.endif 31.if !defined(NO_OBJ) 32_obj= obj 33.endif 34 35# Can be overridden by makeoptions or /etc/make.conf 36KERNEL_KO?= kernel 37KERNEL?= kernel 38KODIR?= /boot/${KERNEL} 39LDSCRIPT_NAME?= ldscript.$M 40LDSCRIPT?= $S/conf/${LDSCRIPT_NAME} 41 42M= ${MACHINE} 43 44AWK?= awk 45CP?= cp 46LINT?= lint 47NM?= nm 48OBJCOPY?= objcopy 49SIZE?= size 50 51.if defined(DEBUG) 52_MINUS_O= -O 53CTFFLAGS+= -g 54.else 55.if ${MACHINE_CPUARCH} == "powerpc" 56_MINUS_O= -O # gcc miscompiles some code at -O2 57.else 58_MINUS_O= -O2 59.endif 60.endif 61.if ${MACHINE_CPUARCH} == "amd64" 62.if ${COMPILER_TYPE} == "clang" 63COPTFLAGS?=-O2 -pipe 64.else 65COPTFLAGS?=-O2 -frename-registers -pipe 66.endif 67.else 68COPTFLAGS?=${_MINUS_O} -pipe 69.endif 70.if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing) 71COPTFLAGS+= -fno-strict-aliasing 72.endif 73.if !defined(NO_CPU_COPTFLAGS) 74COPTFLAGS+= ${_CPUCFLAGS} 75.endif 76NOSTDINC= -nostdinc 77 78INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S 79 80CFLAGS= ${COPTFLAGS} ${DEBUG} 81CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h 82CFLAGS_PARAM_INLINE_UNIT_GROWTH?=100 83CFLAGS_PARAM_LARGE_FUNCTION_GROWTH?=1000 84.if ${MACHINE_CPUARCH} == "mips" 85CFLAGS_ARCH_PARAMS?=--param max-inline-insns-single=1000 -DMACHINE_ARCH='"${MACHINE_ARCH}"' 86.endif 87CFLAGS.gcc+= -fno-common -fms-extensions -finline-limit=${INLINE_LIMIT} 88CFLAGS.gcc+= --param inline-unit-growth=${CFLAGS_PARAM_INLINE_UNIT_GROWTH} 89CFLAGS.gcc+= --param large-function-growth=${CFLAGS_PARAM_LARGE_FUNCTION_GROWTH} 90.if defined(CFLAGS_ARCH_PARAMS) 91CFLAGS.gcc+=${CFLAGS_ARCH_PARAMS} 92.endif 93WERROR?= -Werror 94 95# XXX LOCORE means "don't declare C stuff" not "for locore.s". 96ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS} ${ASM_CFLAGS.${.IMPSRC:T}} 97 98.if defined(PROFLEVEL) && ${PROFLEVEL} >= 1 99CFLAGS+= -DGPROF 100CFLAGS.gcc+= -falign-functions=16 101.if ${PROFLEVEL} >= 2 102CFLAGS+= -DGPROF4 -DGUPROF 103PROF= -pg 104.if ${COMPILER_TYPE} == "gcc" 105PROF+= -mprofiler-epilogue 106.endif 107.else 108PROF= -pg 109.endif 110.endif 111DEFINED_PROF= ${PROF} 112 113# Put configuration-specific C flags last (except for ${PROF}) so that they 114# can override the others. 115CFLAGS+= ${CONF_CFLAGS} 116 117.if ${LINKER_TYPE} != "bfd" || ${LINKER_VERSION} > 21750 118LDFLAGS+= -Wl,--build-id=sha1 119.endif 120 121# Optional linting. This can be overridden in /etc/make.conf. 122LINTFLAGS= ${LINTOBJKERNFLAGS} 123 124NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 125NORMAL_S= ${CC:N${CCACHE_BIN}} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC} 126PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC} 127NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC} 128 129NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \ 130 ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c 131 132NORMAL_FW= uudecode -o ${.TARGET} ${.ALLSRC} 133NORMAL_FWO= ${LD} -b binary --no-warn-mismatch -d -warn-common -r \ 134 -m ${LD_EMULATION} -o ${.TARGET} ${.ALLSRC:M*.fw} 135 136# Common for dtrace / zfs 137CDDL_CFLAGS= -DFREEBSD_NAMECACHE -nostdinc -I$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 138CDDL_CFLAGS+= -include $S/cddl/compat/opensolaris/sys/debug_compat.h 139CDDL_C= ${CC} -c ${CDDL_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 140 141# Special flags for managing the compat compiles for ZFS 142ZFS_CFLAGS= -DBUILDING_ZFS -I$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} 143ZFS_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${ZFS_CFLAGS} 144ZFS_C= ${CC} -c ${ZFS_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 145ZFS_S= ${CC} -c ${ZFS_ASM_CFLAGS} ${WERROR} ${.IMPSRC} 146 147# Special flags for managing the compat compiles for DTrace 148DTRACE_CFLAGS= -DBUILDING_DTRACE ${CDDL_CFLAGS} -I$S/cddl/dev/dtrace -I$S/cddl/dev/dtrace/${MACHINE_CPUARCH} 149.if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386" 150DTRACE_CFLAGS+= -I$S/cddl/contrib/opensolaris/uts/intel -I$S/cddl/dev/dtrace/x86 151.endif 152DTRACE_CFLAGS+= -I$S/cddl/contrib/opensolaris/common/util -I$S -DDIS_MEM -DSMP 153DTRACE_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${DTRACE_CFLAGS} 154DTRACE_C= ${CC} -c ${DTRACE_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 155DTRACE_S= ${CC} -c ${DTRACE_ASM_CFLAGS} ${WERROR} ${.IMPSRC} 156 157# Special flags for managing the compat compiles for DTrace/FBT 158FBT_CFLAGS= -DBUILDING_DTRACE -nostdinc -I$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} 159.if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386" 160FBT_CFLAGS+= -I$S/cddl/dev/fbt/x86 161.endif 162FBT_C= ${CC} -c ${FBT_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 163 164.if ${MK_CTF} != "no" 165NORMAL_CTFCONVERT= ${CTFCONVERT} ${CTFFLAGS} ${.TARGET} 166.elif ${MAKE_VERSION} >= 5201111300 167NORMAL_CTFCONVERT= 168.else 169NORMAL_CTFCONVERT= @: 170.endif 171 172NORMAL_LINT= ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC} 173 174# Linux Kernel Programming Interface C-flags 175LINUXKPI_INCLUDES= -I$S/compat/linuxkpi/common/include 176LINUXKPI_C= ${NORMAL_C} ${LINUXKPI_INCLUDES} 177 178# Infiniband C flags. Correct include paths and omit errors that linux 179# does not honor. 180OFEDINCLUDES= -I$S/ofed/include ${LINUXKPI_INCLUDES} 181OFEDNOERR= -Wno-cast-qual -Wno-pointer-arith 182OFEDCFLAGS= ${CFLAGS:N-I*} ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR} 183OFED_C_NOIMP= ${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF} 184OFED_C= ${OFED_C_NOIMP} ${.IMPSRC} 185 186GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/} 187SYSTEM_CFILES= config.c env.c hints.c vnode_if.c 188SYSTEM_DEP= Makefile ${SYSTEM_OBJS} 189SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS} 190SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o} 191SYSTEM_OBJS+= hack.pico 192 193MD_ROOT_SIZE_CONFIGURED!= grep MD_ROOT_SIZE opt_md.h || true ; echo 194.if ${MFS_IMAGE:Uno} != "no" 195.if empty(MD_ROOT_SIZE_CONFIGURED) 196SYSTEM_OBJS+= embedfs_${MFS_IMAGE:T:R}.o 197.endif 198.endif 199SYSTEM_LD= @${LD} -m ${LD_EMULATION} -Bdynamic -T ${LDSCRIPT} ${_LDFLAGS} \ 200 --no-warn-mismatch --warn-common --export-dynamic \ 201 --dynamic-linker /red/herring \ 202 -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o 203SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \ 204 ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET} 205SYSTEM_DEP+= ${LDSCRIPT} 206 207# Calculate path for .m files early, if needed. 208.if !defined(NO_MODULES) && !defined(__MPATH) && !make(install) 209__MPATH!=find ${S:tA}/ -name \*_if.m 210.endif 211 212# MKMODULESENV is set here so that port makefiles can augment 213# them. 214 215MKMODULESENV+= MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR} 216MKMODULESENV+= MACHINE_CPUARCH=${MACHINE_CPUARCH} 217MKMODULESENV+= MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH} 218MKMODULESENV+= MODULES_EXTRA="${MODULES_EXTRA}" WITHOUT_MODULES="${WITHOUT_MODULES}" 219.if (${KERN_IDENT} == LINT) 220MKMODULESENV+= ALL_MODULES=LINT 221.endif 222.if defined(MODULES_OVERRIDE) 223MKMODULESENV+= MODULES_OVERRIDE="${MODULES_OVERRIDE}" 224.endif 225.if defined(DEBUG) 226MKMODULESENV+= DEBUG_FLAGS="${DEBUG}" 227.endif 228.if !defined(NO_MODULES) 229MKMODULESENV+= __MPATH="${__MPATH}" 230.endif 231 232# Architecture and output format arguments for objdump to convert image to 233# object file 234 235.if ${MFS_IMAGE:Uno} != "no" 236.if empty(MD_ROOT_SIZE_CONFIGURED) 237.if !defined(EMBEDFS_FORMAT.${MACHINE_ARCH}) 238EMBEDFS_FORMAT.${MACHINE_ARCH}!= awk -F'"' '/OUTPUT_FORMAT/ {print $$2}' ${LDSCRIPT} 239.if empty(EMBEDFS_FORMAT.${MACHINE_ARCH}) 240.undef EMBEDFS_FORMAT.${MACHINE_ARCH} 241.endif 242.endif 243 244.if !defined(EMBEDFS_ARCH.${MACHINE_ARCH}) 245EMBEDFS_ARCH.${MACHINE_ARCH}!= sed -n '/OUTPUT_ARCH/s/.*(\(.*\)).*/\1/p' ${LDSCRIPT} 246.if empty(EMBEDFS_ARCH.${MACHINE_ARCH}) 247.undef EMBEDFS_ARCH.${MACHINE_ARCH} 248.endif 249.endif 250 251EMBEDFS_FORMAT.arm?= elf32-littlearm 252EMBEDFS_FORMAT.armv6?= elf32-littlearm 253EMBEDFS_FORMAT.mips?= elf32-tradbigmips 254EMBEDFS_FORMAT.mipsel?= elf32-tradlittlemips 255EMBEDFS_FORMAT.mips64?= elf64-tradbigmips 256EMBEDFS_FORMAT.mips64el?= elf64-tradlittlemips 257EMBEDFS_FORMAT.riscv?= elf64-littleriscv 258.endif 259.endif 260 261# Detect kernel config options that force stack frames to be turned on. 262DDB_ENABLED!= grep DDB opt_ddb.h || true ; echo 263DTR_ENABLED!= grep KDTRACE_FRAME opt_kdtrace.h || true ; echo 264HWPMC_ENABLED!= grep HWPMC opt_hwpmc_hooks.h || true ; echo 265