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