1# $FreeBSD: stable/11/sys/conf/kern.pre.mk 360656 2020-05-05 11:14:28Z dim $ 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: ${.CURDIR} 29 30# Can be overridden by makeoptions or /etc/make.conf 31KERNEL_KO?= kernel 32KERNEL?= kernel 33KODIR?= /boot/${KERNEL} 34LDSCRIPT_NAME?= ldscript.$M 35LDSCRIPT?= $S/conf/${LDSCRIPT_NAME} 36 37M= ${MACHINE} 38 39AWK?= awk 40CP?= cp 41LINT?= lint 42NM?= nm 43OBJCOPY?= objcopy 44SIZE?= size 45 46.if defined(DEBUG) 47_MINUS_O= -O 48CTFFLAGS+= -g 49.else 50.if ${MACHINE_CPUARCH} == "powerpc" 51_MINUS_O= -O # gcc miscompiles some code at -O2 52.else 53_MINUS_O= -O2 54.endif 55.endif 56.if ${MACHINE_CPUARCH} == "amd64" 57.if ${COMPILER_TYPE} == "clang" 58COPTFLAGS?=-O2 -pipe 59.else 60COPTFLAGS?=-O2 -frename-registers -pipe 61.endif 62.else 63COPTFLAGS?=${_MINUS_O} -pipe 64.endif 65.if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing) 66COPTFLAGS+= -fno-strict-aliasing 67.endif 68.if !defined(NO_CPU_COPTFLAGS) 69COPTFLAGS+= ${_CPUCFLAGS} 70.endif 71NOSTDINC= -nostdinc 72 73INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S 74 75CFLAGS= ${COPTFLAGS} ${DEBUG} 76CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h 77CFLAGS_PARAM_INLINE_UNIT_GROWTH?=100 78CFLAGS_PARAM_LARGE_FUNCTION_GROWTH?=1000 79.if ${MACHINE_CPUARCH} == "mips" 80CFLAGS_ARCH_PARAMS?=--param max-inline-insns-single=1000 81.endif 82CFLAGS.gcc+= -fno-common -fms-extensions -finline-limit=${INLINE_LIMIT} 83CFLAGS.gcc+= --param inline-unit-growth=${CFLAGS_PARAM_INLINE_UNIT_GROWTH} 84CFLAGS.gcc+= --param large-function-growth=${CFLAGS_PARAM_LARGE_FUNCTION_GROWTH} 85.if defined(CFLAGS_ARCH_PARAMS) 86CFLAGS.gcc+=${CFLAGS_ARCH_PARAMS} 87.endif 88.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} < 50000 89WERROR?= -Wno-error 90.else 91WERROR?= -Werror 92.endif 93 94# XXX LOCORE means "don't declare C stuff" not "for locore.s". 95ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS} ${ASM_CFLAGS.${.IMPSRC:T}} 96 97.if defined(PROFLEVEL) && ${PROFLEVEL} >= 1 98CFLAGS+= -DGPROF 99CFLAGS.gcc+= -falign-functions=16 100.if ${PROFLEVEL} >= 2 101CFLAGS+= -DGPROF4 -DGUPROF 102PROF= -pg 103.if ${COMPILER_TYPE} == "gcc" 104PROF+= -mprofiler-epilogue 105.endif 106.else 107PROF= -pg 108.endif 109.endif 110DEFINED_PROF= ${PROF} 111 112# Put configuration-specific C flags last (except for ${PROF}) so that they 113# can override the others. 114CFLAGS+= ${CONF_CFLAGS} 115 116.if defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mbuild-id} 117LDFLAGS+= -Wl,--build-id=sha1 118.endif 119 120# Optional linting. This can be overridden in /etc/make.conf. 121LINTFLAGS= ${LINTOBJKERNFLAGS} 122 123NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 124NORMAL_S= ${CC:N${CCACHE_BIN}} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC} 125PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC} 126NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC} 127 128NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \ 129 ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c 130 131NORMAL_FW= uudecode -o ${.TARGET} ${.ALLSRC} 132NORMAL_FWO= ${LD} -b binary --no-warn-mismatch -d -warn-common -r \ 133 -m ${LD_EMULATION} -o ${.TARGET} ${.ALLSRC:M*.fw} 134 135# Common for dtrace / zfs 136CDDL_CFLAGS= -DFREEBSD_NAMECACHE -nostdinc -I$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 137CDDL_CFLAGS+= -include $S/cddl/compat/opensolaris/sys/debug_compat.h 138CDDL_C= ${CC} -c ${CDDL_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 139 140# Special flags for managing the compat compiles for ZFS 141ZFS_CFLAGS= -DBUILDING_ZFS -I$S/cddl/contrib/opensolaris/uts/common/fs/zfs 142ZFS_CFLAGS+= -I$S/cddl/contrib/opensolaris/uts/common/fs/zfs/lua 143ZFS_CFLAGS+= -I$S/cddl/contrib/opensolaris/uts/common/zmod 144ZFS_CFLAGS+= -I$S/cddl/contrib/opensolaris/common/zfs 145ZFS_CFLAGS+= ${CDDL_CFLAGS} 146ZFS_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${ZFS_CFLAGS} 147ZFS_C= ${CC} -c ${ZFS_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 148ZFS_S= ${CC} -c ${ZFS_ASM_CFLAGS} ${WERROR} ${.IMPSRC} 149 150# Special flags for managing the compat compiles for DTrace 151DTRACE_CFLAGS= -DBUILDING_DTRACE ${CDDL_CFLAGS} -I$S/cddl/dev/dtrace -I$S/cddl/dev/dtrace/${MACHINE_CPUARCH} 152.if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386" 153DTRACE_CFLAGS+= -I$S/cddl/contrib/opensolaris/uts/intel -I$S/cddl/dev/dtrace/x86 154.endif 155DTRACE_CFLAGS+= -I$S/cddl/contrib/opensolaris/common/util -I$S -DDIS_MEM -DSMP 156DTRACE_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${DTRACE_CFLAGS} 157DTRACE_C= ${CC} -c ${DTRACE_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 158DTRACE_S= ${CC} -c ${DTRACE_ASM_CFLAGS} ${WERROR} ${.IMPSRC} 159 160# Special flags for managing the compat compiles for DTrace/FBT 161FBT_CFLAGS= -DBUILDING_DTRACE -nostdinc -I$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} 162.if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386" 163FBT_CFLAGS+= -I$S/cddl/dev/fbt/x86 164.endif 165FBT_C= ${CC} -c ${FBT_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 166 167.if ${MK_CTF} != "no" 168NORMAL_CTFCONVERT= ${CTFCONVERT} ${CTFFLAGS} ${.TARGET} 169.elif ${MAKE_VERSION} >= 5201111300 170NORMAL_CTFCONVERT= 171.else 172NORMAL_CTFCONVERT= @: 173.endif 174 175NORMAL_LINT= ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC} 176 177# Linux Kernel Programming Interface C-flags 178LINUXKPI_INCLUDES= -I$S/compat/linuxkpi/common/include 179LINUXKPI_C= ${NORMAL_C} ${LINUXKPI_INCLUDES} 180 181# Infiniband C flags. Correct include paths and omit errors that linux 182# does not honor. 183OFEDINCLUDES= -I$S/ofed/include -I$S/ofed/include/uapi ${LINUXKPI_INCLUDES} 184OFEDNOERR= -Wno-cast-qual -Wno-pointer-arith 185OFEDCFLAGS= ${CFLAGS:N-I*} -DCONFIG_INFINIBAND_USER_MEM \ 186 ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR} 187OFED_C_NOIMP= ${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF} 188OFED_C= ${OFED_C_NOIMP} ${.IMPSRC} 189 190# mlxfw C flags. 191MLXFW_C= ${OFED_C_NOIMP} \ 192 -I$S/contrib/xz-embedded/freebsd \ 193 -I$S/contrib/xz-embedded/linux/lib/xz \ 194 ${.IMPSRC} 195 196GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/} 197SYSTEM_CFILES= config.c env.c hints.c vnode_if.c 198SYSTEM_DEP= Makefile ${SYSTEM_OBJS} 199SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS} 200SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o} 201SYSTEM_OBJS+= hack.pico 202 203MD_ROOT_SIZE_CONFIGURED!= grep MD_ROOT_SIZE opt_md.h || true ; echo 204.if ${MFS_IMAGE:Uno} != "no" 205.if empty(MD_ROOT_SIZE_CONFIGURED) 206SYSTEM_OBJS+= embedfs_${MFS_IMAGE:T:R}.o 207.endif 208.endif 209SYSTEM_LD= @${LD} -m ${LD_EMULATION} -Bdynamic -T ${LDSCRIPT} ${_LDFLAGS} \ 210 --no-warn-mismatch --warn-common --export-dynamic \ 211 --dynamic-linker /red/herring \ 212 -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o 213SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \ 214 ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET} 215SYSTEM_DEP+= ${LDSCRIPT} 216 217# Calculate path for .m files early, if needed. 218.if !defined(NO_MODULES) && !defined(__MPATH) 219__MPATH!=find ${S:tA}/ -name \*_if.m 220.endif 221 222# MKMODULESENV is set here so that port makefiles can augment 223# them. 224 225MKMODULESENV+= MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR} 226MKMODULESENV+= MACHINE_CPUARCH=${MACHINE_CPUARCH} 227MKMODULESENV+= MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH} 228MKMODULESENV+= MODULES_EXTRA="${MODULES_EXTRA}" WITHOUT_MODULES="${WITHOUT_MODULES}" 229MKMODULESENV+= ARCH_FLAGS="${ARCH_FLAGS}" 230.if (${KERN_IDENT} == LINT) 231MKMODULESENV+= ALL_MODULES=LINT 232.endif 233.if defined(MODULES_OVERRIDE) 234MKMODULESENV+= MODULES_OVERRIDE="${MODULES_OVERRIDE}" 235.endif 236.if defined(DEBUG) 237MKMODULESENV+= DEBUG_FLAGS="${DEBUG}" 238.endif 239.if !defined(NO_MODULES) 240MKMODULESENV+= __MPATH="${__MPATH}" 241.endif 242 243# Architecture and output format arguments for objcopy to convert image to 244# object file 245 246.if ${MFS_IMAGE:Uno} != "no" 247.if empty(MD_ROOT_SIZE_CONFIGURED) 248.if !defined(EMBEDFS_FORMAT.${MACHINE_ARCH}) 249EMBEDFS_FORMAT.${MACHINE_ARCH}!= awk -F'"' '/OUTPUT_FORMAT/ {print $$2}' ${LDSCRIPT} 250.if empty(EMBEDFS_FORMAT.${MACHINE_ARCH}) 251.undef EMBEDFS_FORMAT.${MACHINE_ARCH} 252.endif 253.endif 254 255.if !defined(EMBEDFS_ARCH.${MACHINE_ARCH}) 256EMBEDFS_ARCH.${MACHINE_ARCH}!= sed -n '/OUTPUT_ARCH/s/.*(\(.*\)).*/\1/p' ${LDSCRIPT} 257.if empty(EMBEDFS_ARCH.${MACHINE_ARCH}) 258.undef EMBEDFS_ARCH.${MACHINE_ARCH} 259.endif 260.endif 261 262EMBEDFS_FORMAT.arm?= elf32-littlearm 263EMBEDFS_FORMAT.armv6?= elf32-littlearm 264EMBEDFS_FORMAT.aarch64?= elf64-littleaarch64 265EMBEDFS_FORMAT.mips?= elf32-tradbigmips 266EMBEDFS_FORMAT.mipsel?= elf32-tradlittlemips 267EMBEDFS_FORMAT.mips64?= elf64-tradbigmips 268EMBEDFS_FORMAT.mips64el?= elf64-tradlittlemips 269EMBEDFS_FORMAT.riscv64?= elf64-littleriscv 270.endif 271.endif 272 273# Detect kernel config options that force stack frames to be turned on. 274DDB_ENABLED!= grep DDB opt_ddb.h || true ; echo 275DTR_ENABLED!= grep KDTRACE_FRAME opt_kdtrace.h || true ; echo 276HWPMC_ENABLED!= grep HWPMC opt_hwpmc_hooks.h || true ; echo 277