1 2# Part of a unified Makefile for building kernels. This part contains all 3# of the definitions that need to be before %BEFORE_DEPEND. 4 5# Allow user to configure things that only effect src tree builds. 6# Note: This is duplicated from src.sys.mk to ensure that we include 7# /etc/src.conf when building the kernel. Kernels can be built without 8# the rest of /usr/src, but they still always process SRCCONF even though 9# the normal mechanisms to prevent that (compiling out of tree) won't 10# work. To ensure they do work, we have to duplicate thee few lines here. 11.if exists(${SRCTOP}/src.conf) 12SRCCONF?= ${SRCTOP}/src.conf 13.else 14SRCCONF?= /etc/src.conf 15.endif 16.if (exists(${SRCCONF}) || ${SRCCONF} != "/etc/src.conf") && !target(_srcconf_included_) 17.include "${SRCCONF}" 18_srcconf_included_: 19.endif 20 21.include <bsd.own.mk> 22.include <bsd.compiler.mk> 23.include "kern.opts.mk" 24.-include <local.kern.pre.mk> 25 26# The kernel build always occurs in the object directory which is .CURDIR. 27.if ${.MAKE.MODE:Unormal:Mmeta} 28.MAKE.MODE+= curdirOk=yes 29.endif 30 31# The kernel build always expects .OBJDIR=.CURDIR. 32.OBJDIR: ${.CURDIR} 33 34.if defined(NO_OBJWALK) || ${MK_AUTO_OBJ} == "yes" 35NO_OBJWALK= t 36NO_MODULES_OBJ= t 37.endif 38.if !defined(NO_OBJWALK) 39_obj= obj 40.endif 41 42# Can be overridden by makeoptions or /etc/make.conf 43KERNEL_KO?= kernel 44KERNEL?= kernel 45KODIR?= /boot/${KERNEL} 46LDSCRIPT_NAME?= ldscript.$M 47LDSCRIPT?= $S/conf/${LDSCRIPT_NAME} 48 49M= ${MACHINE} 50 51AWK?= awk 52CP?= cp 53ELFDUMP?= elfdump 54NM?= nm 55OBJCOPY?= objcopy 56SIZE?= size 57 58.if defined(DEBUG) 59CTFFLAGS+= -g 60.endif 61.if ${MACHINE_CPUARCH} == "amd64" && ${COMPILER_TYPE} != "clang" 62_COPTFLAGS_EXTRA=-frename-registers 63.else 64_COPTFLAGS_EXTRA= 65.endif 66COPTFLAGS?=-O2 -pipe ${_COPTFLAGS_EXTRA} 67.if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing) 68COPTFLAGS+= -fno-strict-aliasing 69.endif 70.if !defined(NO_CPU_COPTFLAGS) 71COPTFLAGS+= ${_CPUCFLAGS} 72.endif 73NOSTDINC= -nostdinc 74 75INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S -I$S/contrib/ck/include 76 77CFLAGS= ${COPTFLAGS} ${DEBUG} 78CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h 79CFLAGS_PARAM_INLINE_UNIT_GROWTH?=100 80CFLAGS_PARAM_LARGE_FUNCTION_GROWTH?=1000 81CFLAGS.gcc+= -fms-extensions -finline-limit=${INLINE_LIMIT} 82CFLAGS.gcc+= --param inline-unit-growth=${CFLAGS_PARAM_INLINE_UNIT_GROWTH} 83CFLAGS.gcc+= --param large-function-growth=${CFLAGS_PARAM_LARGE_FUNCTION_GROWTH} 84CFLAGS.gcc+= -fms-extensions 85.if defined(CFLAGS_ARCH_PARAMS) 86CFLAGS.gcc+=${CFLAGS_ARCH_PARAMS} 87.endif 88WERROR?= -Werror 89# The following should be removed no earlier than LLVM11 being imported into the 90# tree, to ensure we don't regress the build. LLVM11 and GCC10 will switch the 91# default over to -fno-common, making this redundant. 92CFLAGS+= -fno-common 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 97COMPAT_FREEBSD32_ENABLED!= grep COMPAT_FREEBSD32 opt_global.h || true ; echo 98 99KASAN_ENABLED!= grep KASAN opt_global.h || true ; echo 100KCSAN_ENABLED!= grep KCSAN opt_global.h || true ; echo 101KMSAN_ENABLED!= grep KMSAN opt_global.h || true ; echo 102KUBSAN_ENABLED!= grep KUBSAN opt_global.h || true ; echo 103COVERAGE_ENABLED!= grep COVERAGE opt_global.h || true ; echo 104 105GCOV_ENABLED!= grep GCOV opt_global.h || true ; echo 106.if !empty(GCOV_ENABLED) 107.if ${COMPILER_TYPE} == "gcc" 108GCOV_CFLAGS+= -fprofile-arcs -ftest-coverage 109.endif 110.endif 111 112CFLAGS+= ${GCOV_CFLAGS} 113 114# Put configuration-specific C flags last so that they can override 115# the others. 116CFLAGS+= ${CONF_CFLAGS} 117 118.if defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mbuild-id} 119LDFLAGS+= --build-id=sha1 120.endif 121 122.if (${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "amd64" || \ 123 ${MACHINE_CPUARCH} == "i386" || ${MACHINE} == "powerpc") && \ 124 defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == "" && \ 125 !make(install) 126.error amd64/arm64/i386/ppc* kernel requires linker ifunc support 127.endif 128.if ${MACHINE_CPUARCH} == "amd64" 129LDFLAGS+= -z max-page-size=2097152 130.if ${LINKER_TYPE} != "lld" 131LDFLAGS+= -z common-page-size=4096 132.else 133.if defined(LINKER_FEATURES) && !${LINKER_FEATURES:Mifunc-noplt} 134.warning "Linker ${LD} does not support -z ifunc-noplt -> ifunc calls are unoptimized." 135.else 136LDFLAGS+= -z notext -z ifunc-noplt 137.endif 138.endif 139.endif # ${MACHINE_CPUARCH} == "amd64" 140 141.if ${MACHINE_CPUARCH} == "riscv" 142# Hack: Work around undefined weak symbols being out of range when linking with 143# LLD (address is a PC-relative calculation, and BFD works around this by 144# rewriting the instructions to generate an absolute address of 0); -fPIE 145# avoids this since it uses the GOT for all extern symbols, which is overly 146# inefficient for us. Drop once undefined weak symbols work with medany. 147.if ${LINKER_TYPE} == "lld" 148CFLAGS+= -fPIE 149.endif 150.endif 151 152NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC} 153NORMAL_S= ${CC:N${CCACHE_BIN}} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC} 154NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${.IMPSRC} 155 156NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \ 157 ${CC} -c ${CFLAGS} ${WERROR} ${.PREFIX}.c 158 159NORMAL_FW= uudecode -o ${.TARGET} ${.ALLSRC} 160NORMAL_FWO= ${CC:N${CCACHE_BIN}} -c ${ASM_CFLAGS} ${WERROR} -o ${.TARGET} \ 161 $S/kern/firmw.S -DFIRMW_FILE=\""${.ALLSRC:M*.fw}"\" \ 162 -DFIRMW_SYMBOL="${.ALLSRC:M*.fw:C/[-.\/]/_/g}" 163 164# Remove sanitizer arguments. Some -fno-sanitize* and -fasan-shadow-offset* 165# arguments become an error if the appropriate sanitizer is not enabled. 166NOSAN_C= ${NORMAL_C:N-fsanitize*:N-fno-sanitize*:N-fasan-shadow-offset*} 167 168# for ZSTD in the kernel (include zstd/lib/freebsd before other CFLAGS) 169ZSTD_C= ${CC} -c -DZSTD_HEAPMODE=1 -I$S/contrib/zstd/lib/freebsd ${CFLAGS} \ 170 -I$S/contrib/zstd/lib -I$S/contrib/zstd/lib/common ${WERROR} \ 171 -Wno-missing-prototypes -U__BMI__ -DZSTD_NO_INTRINSICS ${.IMPSRC} 172# https://github.com/facebook/zstd/commit/812e8f2a [zstd 1.4.1] 173# "Note that [GCC] autovectorization still does not do a good job on the 174# optimized version, so it's turned off via attribute and flag. I found 175# that neither attribute nor command-line flag were entirely successful in 176# turning off vectorization, which is why there were both." 177.if ${COMPILER_TYPE} == "gcc" 178ZSTD_DECOMPRESS_BLOCK_FLAGS= -fno-tree-vectorize 179.endif 180 181ZINCDIR=$S/contrib/openzfs/include 182# Common for dtrace / zfs 183CDDL_CFLAGS= \ 184 -DFREEBSD_NAMECACHE \ 185 -D_SYS_VMEM_H_ \ 186 -D__KERNEL \ 187 -D__KERNEL__ \ 188 -nostdinc \ 189 -include $S/modules/zfs/static_ccompile.h \ 190 -I${ZINCDIR} \ 191 -I${ZINCDIR}/os/freebsd \ 192 -I${ZINCDIR}/os/freebsd/spl \ 193 -I${ZINCDIR}/os/freebsd/zfs \ 194 -I$S/modules/zfs \ 195 -I$S/contrib/openzfs/module/zstd/include \ 196 ${CFLAGS} \ 197 -Wno-cast-qual \ 198 -Wno-duplicate-decl-specifier \ 199 -Wno-missing-braces \ 200 -Wno-missing-prototypes \ 201 -Wno-parentheses \ 202 -Wno-pointer-arith \ 203 -Wno-strict-prototypes \ 204 -Wno-switch \ 205 -Wno-undef \ 206 -Wno-uninitialized \ 207 -Wno-unknown-pragmas \ 208 -Wno-unused \ 209 -include ${ZINCDIR}/os/freebsd/spl/sys/ccompile.h \ 210 -I$S/cddl/contrib/opensolaris/uts/common \ 211 -I$S -I$S/cddl/compat/opensolaris 212CDDL_C= ${CC} -c ${CDDL_CFLAGS} ${WERROR} ${.IMPSRC} 213 214# Special flags for managing the compat compiles for ZFS 215ZFS_CFLAGS+= -I$S/contrib/openzfs/module/icp/include \ 216 ${CDDL_CFLAGS} -DBUILDING_ZFS -DHAVE_UIO_ZEROCOPY \ 217 -DWITH_NETDUMP -D__KERNEL__ -D_SYS_CONDVAR_H_ -DSMP 218 219.if ${MACHINE_ARCH} == "amd64" 220ZFS_CFLAGS+= -D__x86_64 -DHAVE_SSE2 -DHAVE_SSSE3 -DHAVE_SSE4_1 -DHAVE_SSE4_2 \ 221 -DHAVE_AVX -DHAVE_AVX2 -DHAVE_AVX512F -DHAVE_AVX512VL -DHAVE_AVX512BW \ 222 -DHAVE_VAES -DHAVE_VPCLMULQDQ 223.endif 224 225.if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "powerpc" || \ 226 ${MACHINE_ARCH} == "powerpcspe" || ${MACHINE_ARCH} == "arm" 227ZFS_CFLAGS+= -DBITS_PER_LONG=32 228.else 229ZFS_CFLAGS+= -DBITS_PER_LONG=64 230.endif 231 232 233ZFS_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${ZFS_CFLAGS} 234ZFS_C= ${CC} -c ${ZFS_CFLAGS} ${WERROR} ${.IMPSRC} 235ZFS_RPC_C= ${CC} -c ${ZFS_CFLAGS} -DHAVE_RPC_TYPES ${WERROR} ${.IMPSRC} 236ZFS_S= ${CC} -c ${ZFS_ASM_CFLAGS} ${WERROR} ${.IMPSRC} 237 238# ATH driver 239ATH_CFLAGS= -I${SRCTOP}/sys/dev/ath ${NO_WUNUSED_BUT_SET_VARIABLE} 240ATH_C= ${CC} -c ${CFLAGS} ${WERROR} ${ATH_CFLAGS} ${.IMPSRC} 241 242# Special flags for managing the compat compiles for DTrace 243DTRACE_CFLAGS= -DBUILDING_DTRACE ${CDDL_CFLAGS} -I$S/cddl/dev/dtrace -I$S/cddl/dev/dtrace/${MACHINE_CPUARCH} 244.if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386" 245DTRACE_CFLAGS+= -I$S/cddl/contrib/opensolaris/uts/intel -I$S/cddl/dev/dtrace/x86 246.endif 247DTRACE_CFLAGS+= -I$S/cddl/contrib/opensolaris/common/util -I$S -DDIS_MEM -DSMP -I$S/cddl/compat/opensolaris 248DTRACE_CFLAGS+= -I$S/cddl/contrib/opensolaris/uts/common 249DTRACE_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${DTRACE_CFLAGS} 250DTRACE_C= ${CC} -c ${DTRACE_CFLAGS} ${WERROR} ${.IMPSRC} 251DTRACE_S= ${CC} -c ${DTRACE_ASM_CFLAGS} ${WERROR} ${.IMPSRC} 252 253# zlib code supports systems that are quite old, but will fix this issue once C2x gets radified. 254# see https://github.com/madler/zlib/issues/633 for details 255ZLIB_CFLAGS= -Wno-cast-qual ${NO_WDEPRECATED_NON_PROTOTYPE} ${NO_WSTRICT_PROTOTYPES} 256ZLIB_C= ${CC} -c ${CFLAGS} ${WERROR} ${ZLIB_CFLAGS} ${.IMPSRC} 257 258# Special flags for managing the compat compiles for DTrace/FBT 259FBT_CFLAGS= -DBUILDING_DTRACE -nostdinc -I$S/cddl/dev/fbt/${MACHINE_CPUARCH} -I$S/cddl/dev/fbt ${CDDL_CFLAGS} -I$S/cddl/compat/opensolaris -I$S/cddl/contrib/opensolaris/uts/common 260.if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386" 261FBT_CFLAGS+= -I$S/cddl/dev/fbt/x86 262.endif 263FBT_C= ${CC} -c ${FBT_CFLAGS} ${WERROR} ${.IMPSRC} 264 265.if ${MK_CTF} != "no" 266NORMAL_CTFCONVERT= ${CTFCONVERT} ${CTFFLAGS} ${.TARGET} 267.elif ${MAKE_VERSION} >= 5201111300 268NORMAL_CTFCONVERT= 269.else 270NORMAL_CTFCONVERT= @: 271.endif 272 273# Linux Kernel Programming Interface C-flags 274LINUXKPI_INCLUDES= -I$S/compat/linuxkpi/common/include \ 275 -I$S/compat/linuxkpi/dummy/include \ 276 -include $S/compat/linuxkpi/common/include/linux/kconfig.h 277LINUXKPI_C= ${NORMAL_C} ${LINUXKPI_INCLUDES} 278 279# Infiniband C flags. Correct include paths and omit errors that linux 280# does not honor. 281OFEDINCLUDES= -I$S/ofed/include -I$S/ofed/include/uapi ${LINUXKPI_INCLUDES} 282OFEDNOERR= -Wno-cast-qual -Wno-pointer-arith 283OFEDCFLAGS= ${CFLAGS:N-I*} -DCONFIG_INFINIBAND_USER_MEM \ 284 ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR} 285OFED_C_NOIMP= ${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} 286OFED_C= ${OFED_C_NOIMP} ${.IMPSRC} 287 288# mlxfw C flags. 289MLXFW_C= ${OFED_C_NOIMP} \ 290 -I${SRCTOP}/sys/contrib/xz-embedded/freebsd \ 291 -I${SRCTOP}/sys/contrib/xz-embedded/linux/lib/xz \ 292 ${.IMPSRC} 293# BNXT Driver 294BNXT_CFLAGS= -I$S/dev/bnxt/bnxt_en ${OFEDCFLAGS} 295BNXT_C_NOIMP= ${CC} -c -o ${.TARGET} ${BNXT_CFLAGS} ${WERROR} 296BNXT_C= ${BNXT_C_NOIMP} ${.IMPSRC} 297 298# IP Filter 299IPFILTER_CFLAGS= -I$S/netpfil/ipfilter 300IPFILTER_C= ${NORMAL_C} ${IPFILTER_CFLAGS} 301 302GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/} 303SYSTEM_CFILES= config.c env.c hints.c vnode_if.c 304SYSTEM_DEP= Makefile ${SYSTEM_OBJS} 305SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS} 306SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o} 307SYSTEM_OBJS+= force-dynamic-hack.pico 308 309KEYMAP=kbdcontrol -P ${SRCTOP}/share/vt/keymaps -P ${SRCTOP}/share/syscons/keymaps 310KEYMAP_FIX=sed -e 's/^static keymap_t.* = /static keymap_t key_map = /' -e 's/^static accentmap_t.* = /static accentmap_t accent_map = /' 311 312MD_ROOT_SIZE_CONFIGURED!= grep MD_ROOT_SIZE opt_md.h || true ; echo 313.if ${MFS_IMAGE:Uno} != "no" 314.if empty(MD_ROOT_SIZE_CONFIGURED) 315SYSTEM_OBJS+= embedfs_${MFS_IMAGE:T:R}.o 316.endif 317.endif 318SYSTEM_LD_BASECMD= \ 319 ${LD} -m ${LD_EMULATION} -Bdynamic -L $S/conf -T ${LDSCRIPT} ${_LDFLAGS} \ 320 --no-warn-mismatch --warn-common --export-dynamic \ 321 --dynamic-linker /red/herring -X 322SYSTEM_LD= @${SYSTEM_LD_BASECMD} -o ${.TARGET} ${SYSTEM_OBJS} vers.o 323SYSTEM_LD_TAIL= @${SIZE} ${.TARGET} ; chmod 755 ${.TARGET} 324SYSTEM_DEP+= ${LDSCRIPT} 325 326# Calculate path for .m files early, if needed. 327.if !defined(NO_MODULES) && !defined(__MPATH) && !make(install) && \ 328 (empty(.MAKEFLAGS:M-V) || defined(NO_SKIP_MPATH)) 329__MPATH!=find ${S:tA}/ -name \*_if.m 330.endif 331 332# MKMODULESENV is set here so that port makefiles can augment 333# them. 334 335MKMODULESENV+= MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR} 336MKMODULESENV+= MACHINE_CPUARCH=${MACHINE_CPUARCH} 337MKMODULESENV+= MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH} 338MKMODULESENV+= MODULES_EXTRA="${MODULES_EXTRA}" WITHOUT_MODULES="${WITHOUT_MODULES}" 339MKMODULESENV+= ARCH_FLAGS="${ARCH_FLAGS}" 340.if (${KERN_IDENT} == LINT) 341MKMODULESENV+= ALL_MODULES=LINT 342.endif 343.if defined(MODULES_OVERRIDE) 344MKMODULESENV+= MODULES_OVERRIDE="${MODULES_OVERRIDE}" 345.endif 346.if defined(DEBUG) 347MKMODULESENV+= DEBUG_FLAGS="${DEBUG}" 348.endif 349.if !defined(NO_MODULES) 350MKMODULESENV+= __MPATH="${__MPATH}" 351.endif 352 353# Detect kernel config options that force stack frames to be turned on. 354DDB_ENABLED!= grep DDB opt_ddb.h || true ; echo 355DTRACE_ENABLED!=grep KDTRACE_FRAME opt_kdtrace.h || true ; echo 356HWPMC_ENABLED!= grep HWPMC opt_hwpmc_hooks.h || true ; echo 357