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- # Part of a unified Makefile for building kernels. This part contains all
- # of the definitions that need to be before %BEFORE_DEPEND.
- # Allow user to configure things that only effect src tree builds.
- # Note: This is duplicated from src.sys.mk to ensure that we include
- # /etc/src.conf when building the kernel. Kernels can be built without
- # the rest of /usr/src, but they still always process SRCCONF even though
- # the normal mechanisms to prevent that (compiling out of tree) won't
- # work. To ensure they do work, we have to duplicate thee few lines here.
- SRCCONF?= /etc/src.conf
- .if (exists(${SRCCONF}) || ${SRCCONF} != "/etc/src.conf") && !target(_srcconf_included_)
- .include "${SRCCONF}"
- _srcconf_included_:
- .endif
- .include <bsd.own.mk>
- .include <bsd.compiler.mk>
- .include "kern.opts.mk"
- # The kernel build always occurs in the object directory which is .CURDIR.
- .if ${.MAKE.MODE:Unormal:Mmeta}
- .MAKE.MODE+= curdirOk=yes
- .endif
- # The kernel build always expects .OBJDIR=.CURDIR.
- .OBJDIR: ${.CURDIR}
- .if defined(NO_OBJWALK) || ${MK_AUTO_OBJ} == "yes"
- NO_OBJWALK= t
- NO_MODULES_OBJ= t
- .endif
- .if !defined(NO_OBJWALK)
- _obj= obj
- .endif
- # Can be overridden by makeoptions or /etc/make.conf
- KERNEL_KO?= kernel
- KERNEL?= kernel
- KODIR?= /boot/${KERNEL}
- LDSCRIPT_NAME?= ldscript.$M
- LDSCRIPT?= $S/conf/${LDSCRIPT_NAME}
- M= ${MACHINE}
- AWK?= awk
- CP?= cp
- ELFDUMP?= elfdump
- NM?= nm
- OBJCOPY?= objcopy
- SIZE?= size
- .if defined(DEBUG)
- CTFFLAGS+= -g
- .endif
- .if ${MACHINE_CPUARCH} == "amd64" && ${COMPILER_TYPE} != "clang"
- _COPTFLAGS_EXTRA=-frename-registers
- .else
- _COPTFLAGS_EXTRA=
- .endif
- COPTFLAGS?=-O2 -pipe ${_COPTFLAGS_EXTRA}
- .if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)
- COPTFLAGS+= -fno-strict-aliasing
- .endif
- .if !defined(NO_CPU_COPTFLAGS)
- COPTFLAGS+= ${_CPUCFLAGS}
- .endif
- NOSTDINC= -nostdinc
- INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S -I$S/contrib/ck/include
- CFLAGS= ${COPTFLAGS} ${DEBUG}
- CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
- CFLAGS_PARAM_INLINE_UNIT_GROWTH?=100
- CFLAGS_PARAM_LARGE_FUNCTION_GROWTH?=1000
- CFLAGS.gcc+= -fms-extensions -finline-limit=${INLINE_LIMIT}
- CFLAGS.gcc+= --param inline-unit-growth=${CFLAGS_PARAM_INLINE_UNIT_GROWTH}
- CFLAGS.gcc+= --param large-function-growth=${CFLAGS_PARAM_LARGE_FUNCTION_GROWTH}
- CFLAGS.gcc+= -fms-extensions
- .if defined(CFLAGS_ARCH_PARAMS)
- CFLAGS.gcc+=${CFLAGS_ARCH_PARAMS}
- .endif
- WERROR?= -Werror
- # The following should be removed no earlier than LLVM11 being imported into the
- # tree, to ensure we don't regress the build. LLVM11 and GCC10 will switch the
- # default over to -fno-common, making this redundant.
- CFLAGS+= -fno-common
- # XXX LOCORE means "don't declare C stuff" not "for locore.s".
- ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS} ${ASM_CFLAGS.${.IMPSRC:T}}
- COMPAT_FREEBSD32_ENABLED!= grep COMPAT_FREEBSD32 opt_global.h || true ; echo
- KASAN_ENABLED!= grep KASAN opt_global.h || true ; echo
- .if !empty(KASAN_ENABLED)
- SAN_CFLAGS+= -DSAN_NEEDS_INTERCEPTORS -DSAN_INTERCEPTOR_PREFIX=kasan \
- -fsanitize=kernel-address \
- -mllvm -asan-stack=true \
- -mllvm -asan-instrument-dynamic-allocas=true \
- -mllvm -asan-globals=true \
- -mllvm -asan-use-after-scope=true \
- -mllvm -asan-instrumentation-with-call-threshold=0 \
- -mllvm -asan-instrument-byval=false
- .if ${MACHINE_CPUARCH} == "aarch64"
- # KASAN/ARM64 TODO: -asan-mapping-offset is calculated from:
- # (VM_KERNEL_MIN_ADDRESS >> KASAN_SHADOW_SCALE_SHIFT) + $offset = KASAN_MIN_ADDRESS
- #
- # This is different than amd64, where we have a different
- # KASAN_MIN_ADDRESS, and this offset value should eventually be
- # upstreamed similar to: https://reviews.llvm.org/D98285
- #
- SAN_CFLAGS+= -mllvm -asan-mapping-offset=0xdfff208000000000
- .elif ${MACHINE_CPUARCH} == "amd64" && \
- ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 180000
- # Work around https://github.com/llvm/llvm-project/issues/87923, which leads to
- # an assertion failure compiling dtrace.c with asan enabled.
- SAN_CFLAGS+= -mllvm -asan-use-stack-safety=0
- .endif
- .endif
- KCSAN_ENABLED!= grep KCSAN opt_global.h || true ; echo
- .if !empty(KCSAN_ENABLED)
- SAN_CFLAGS+= -DSAN_NEEDS_INTERCEPTORS -DSAN_INTERCEPTOR_PREFIX=kcsan \
- -fsanitize=thread
- .endif
- KMSAN_ENABLED!= grep KMSAN opt_global.h || true ; echo
- .if !empty(KMSAN_ENABLED)
- # Disable -fno-sanitize-memory-param-retval until interceptors have been
- # updated to work properly with it.
- SAN_CFLAGS+= -DSAN_NEEDS_INTERCEPTORS -DSAN_INTERCEPTOR_PREFIX=kmsan \
- -fsanitize=kernel-memory
- .if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 160000
- SAN_CFLAGS+= -fno-sanitize-memory-param-retval
- .endif
- .endif
- KUBSAN_ENABLED!= grep KUBSAN opt_global.h || true ; echo
- .if !empty(KUBSAN_ENABLED)
- SAN_CFLAGS+= -fsanitize=undefined
- .endif
- COVERAGE_ENABLED!= grep COVERAGE opt_global.h || true ; echo
- .if !empty(COVERAGE_ENABLED)
- .if ${COMPILER_TYPE} == "clang" || \
- (${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 80100)
- SAN_CFLAGS+= -fsanitize-coverage=trace-pc,trace-cmp
- .else
- SAN_CFLAGS+= -fsanitize-coverage=trace-pc
- .endif
- .endif
- CFLAGS+= ${SAN_CFLAGS}
- GCOV_ENABLED!= grep GCOV opt_global.h || true ; echo
- .if !empty(GCOV_ENABLED)
- .if ${COMPILER_TYPE} == "gcc"
- GCOV_CFLAGS+= -fprofile-arcs -ftest-coverage
- .endif
- .endif
- CFLAGS+= ${GCOV_CFLAGS}
- # Put configuration-specific C flags last so that they can override
- # the others.
- CFLAGS+= ${CONF_CFLAGS}
- .if defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mbuild-id}
- LDFLAGS+= --build-id=sha1
- .endif
- .if (${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "amd64" || \
- ${MACHINE_CPUARCH} == "i386" || ${MACHINE} == "powerpc") && \
- defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == "" && \
- !make(install)
- .error amd64/arm64/i386/ppc* kernel requires linker ifunc support
- .endif
- .if ${MACHINE_CPUARCH} == "amd64"
- LDFLAGS+= -z max-page-size=2097152
- .if ${LINKER_TYPE} != "lld"
- LDFLAGS+= -z common-page-size=4096
- .else
- .if defined(LINKER_FEATURES) && !${LINKER_FEATURES:Mifunc-noplt}
- .warning "Linker ${LD} does not support -z ifunc-noplt -> ifunc calls are unoptimized."
- .else
- LDFLAGS+= -z notext -z ifunc-noplt
- .endif
- .endif
- .endif # ${MACHINE_CPUARCH} == "amd64"
- .if ${MACHINE_CPUARCH} == "riscv"
- # Hack: Work around undefined weak symbols being out of range when linking with
- # LLD (address is a PC-relative calculation, and BFD works around this by
- # rewriting the instructions to generate an absolute address of 0); -fPIE
- # avoids this since it uses the GOT for all extern symbols, which is overly
- # inefficient for us. Drop once undefined weak symbols work with medany.
- .if ${LINKER_TYPE} == "lld"
- CFLAGS+= -fPIE
- .endif
- .endif
- NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
- NORMAL_S= ${CC:N${CCACHE_BIN}} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
- NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${.IMPSRC}
- NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
- ${CC} -c ${CFLAGS} ${WERROR} ${.PREFIX}.c
- NORMAL_FW= uudecode -o ${.TARGET} ${.ALLSRC}
- NORMAL_FWO= ${CC:N${CCACHE_BIN}} -c ${ASM_CFLAGS} ${WERROR} -o ${.TARGET} \
- $S/kern/firmw.S -DFIRMW_FILE=\""${.ALLSRC:M*.fw}"\" \
- -DFIRMW_SYMBOL="${.ALLSRC:M*.fw:C/[-.\/]/_/g}"
- # for ZSTD in the kernel (include zstd/lib/freebsd before other CFLAGS)
- ZSTD_C= ${CC} -c -DZSTD_HEAPMODE=1 -I$S/contrib/zstd/lib/freebsd ${CFLAGS} \
- -I$S/contrib/zstd/lib -I$S/contrib/zstd/lib/common ${WERROR} \
- -Wno-missing-prototypes -U__BMI__ -DZSTD_NO_INTRINSICS ${.IMPSRC}
- # https://github.com/facebook/zstd/commit/812e8f2a [zstd 1.4.1]
- # "Note that [GCC] autovectorization still does not do a good job on the
- # optimized version, so it's turned off via attribute and flag. I found
- # that neither attribute nor command-line flag were entirely successful in
- # turning off vectorization, which is why there were both."
- .if ${COMPILER_TYPE} == "gcc"
- ZSTD_DECOMPRESS_BLOCK_FLAGS= -fno-tree-vectorize
- .endif
- ZINCDIR=$S/contrib/openzfs/include
- # Common for dtrace / zfs
- CDDL_CFLAGS= \
- -DFREEBSD_NAMECACHE \
- -D_SYS_VMEM_H_ \
- -D__KERNEL \
- -D__KERNEL__ \
- -nostdinc \
- -include $S/modules/zfs/static_ccompile.h \
- -I${ZINCDIR} \
- -I${ZINCDIR}/os/freebsd \
- -I${ZINCDIR}/os/freebsd/spl \
- -I${ZINCDIR}/os/freebsd/zfs \
- -I$S/modules/zfs \
- -I$S/contrib/openzfs/module/zstd/include \
- ${CFLAGS} \
- -Wno-cast-qual \
- -Wno-duplicate-decl-specifier \
- -Wno-missing-braces \
- -Wno-missing-prototypes \
- -Wno-parentheses \
- -Wno-pointer-arith \
- -Wno-strict-prototypes \
- -Wno-switch \
- -Wno-undef \
- -Wno-uninitialized \
- -Wno-unknown-pragmas \
- -Wno-unused \
- -include ${ZINCDIR}/os/freebsd/spl/sys/ccompile.h \
- -I$S/cddl/contrib/opensolaris/uts/common \
- -I$S -I$S/cddl/compat/opensolaris
- CDDL_C= ${CC} -c ${CDDL_CFLAGS} ${WERROR} ${.IMPSRC}
- # Special flags for managing the compat compiles for ZFS
- ZFS_CFLAGS+= -I$S/contrib/openzfs/module/icp/include \
- ${CDDL_CFLAGS} -DBUILDING_ZFS -DHAVE_UIO_ZEROCOPY \
- -DWITH_NETDUMP -D__KERNEL__ -D_SYS_CONDVAR_H_ -DSMP
- .if ${MACHINE_ARCH} == "amd64"
- ZFS_CFLAGS+= -D__x86_64 -DHAVE_SSE2 -DHAVE_SSSE3 -DHAVE_SSE4_1 -DHAVE_SSE4_2 \
- -DHAVE_AVX -DHAVE_AVX2 -DHAVE_AVX512F -DHAVE_AVX512VL -DHAVE_AVX512BW
- .endif
- .if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "powerpc" || \
- ${MACHINE_ARCH} == "powerpcspe" || ${MACHINE_ARCH} == "arm"
- ZFS_CFLAGS+= -DBITS_PER_LONG=32
- .else
- ZFS_CFLAGS+= -DBITS_PER_LONG=64
- .endif
- ZFS_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${ZFS_CFLAGS}
- ZFS_C= ${CC} -c ${ZFS_CFLAGS} ${WERROR} ${.IMPSRC}
- ZFS_RPC_C= ${CC} -c ${ZFS_CFLAGS} -DHAVE_RPC_TYPES ${WERROR} ${.IMPSRC}
- ZFS_S= ${CC} -c ${ZFS_ASM_CFLAGS} ${WERROR} ${.IMPSRC}
- # ATH driver
- ATH_CFLAGS= -I${SRCTOP}/sys/dev/ath ${NO_WUNUSED_BUT_SET_VARIABLE}
- ATH_C= ${CC} -c ${CFLAGS} ${WERROR} ${ATH_CFLAGS} ${.IMPSRC}
- # Special flags for managing the compat compiles for DTrace
- DTRACE_CFLAGS= -DBUILDING_DTRACE ${CDDL_CFLAGS} -I$S/cddl/dev/dtrace -I$S/cddl/dev/dtrace/${MACHINE_CPUARCH}
- .if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
- DTRACE_CFLAGS+= -I$S/cddl/contrib/opensolaris/uts/intel -I$S/cddl/dev/dtrace/x86
- .endif
- DTRACE_CFLAGS+= -I$S/cddl/contrib/opensolaris/common/util -I$S -DDIS_MEM -DSMP -I$S/cddl/compat/opensolaris
- DTRACE_CFLAGS+= -I$S/cddl/contrib/opensolaris/uts/common
- DTRACE_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${DTRACE_CFLAGS}
- DTRACE_C= ${CC} -c ${DTRACE_CFLAGS} ${WERROR} ${.IMPSRC}
- DTRACE_S= ${CC} -c ${DTRACE_ASM_CFLAGS} ${WERROR} ${.IMPSRC}
- # zlib code supports systems that are quite old, but will fix this issue once C2x gets radified.
- # see https://github.com/madler/zlib/issues/633 for details
- ZLIB_CFLAGS= -Wno-cast-qual ${NO_WDEPRECATED_NON_PROTOTYPE} ${NO_WSTRICT_PROTOTYPES}
- ZLIB_C= ${CC} -c ${CFLAGS} ${WERROR} ${ZLIB_CFLAGS} ${.IMPSRC}
- # Special flags for managing the compat compiles for DTrace/FBT
- FBT_CFLAGS= -DBUILDING_DTRACE -nostdinc -I$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
- .if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
- FBT_CFLAGS+= -I$S/cddl/dev/fbt/x86
- .endif
- FBT_C= ${CC} -c ${FBT_CFLAGS} ${WERROR} ${.IMPSRC}
- .if ${MK_CTF} != "no"
- NORMAL_CTFCONVERT= ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
- .elif ${MAKE_VERSION} >= 5201111300
- NORMAL_CTFCONVERT=
- .else
- NORMAL_CTFCONVERT= @:
- .endif
- # Linux Kernel Programming Interface C-flags
- LINUXKPI_INCLUDES= -I$S/compat/linuxkpi/common/include \
- -I$S/compat/linuxkpi/dummy/include
- LINUXKPI_C= ${NORMAL_C} ${LINUXKPI_INCLUDES}
- # Infiniband C flags. Correct include paths and omit errors that linux
- # does not honor.
- OFEDINCLUDES= -I$S/ofed/include -I$S/ofed/include/uapi ${LINUXKPI_INCLUDES}
- OFEDNOERR= -Wno-cast-qual -Wno-pointer-arith
- OFEDCFLAGS= ${CFLAGS:N-I*} -DCONFIG_INFINIBAND_USER_MEM \
- ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR}
- OFED_C_NOIMP= ${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR}
- OFED_C= ${OFED_C_NOIMP} ${.IMPSRC}
- # mlxfw C flags.
- MLXFW_C= ${OFED_C_NOIMP} \
- -I${SRCTOP}/sys/contrib/xz-embedded/freebsd \
- -I${SRCTOP}/sys/contrib/xz-embedded/linux/lib/xz \
- ${.IMPSRC}
- # BNXT Driver
- BNXT_CFLAGS= -I$S/dev/bnxt/bnxt_en ${OFEDCFLAGS}
- BNXT_C_NOIMP= ${CC} -c -o ${.TARGET} ${BNXT_CFLAGS} ${WERROR}
- BNXT_C= ${BNXT_C_NOIMP} ${.IMPSRC}
- GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
- SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
- SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
- SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
- SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
- SYSTEM_OBJS+= force-dynamic-hack.pico
- KEYMAP=kbdcontrol -P ${SRCTOP}/share/vt/keymaps -P ${SRCTOP}/share/syscons/keymaps
- KEYMAP_FIX=sed -e 's/^static keymap_t.* = /static keymap_t key_map = /' -e 's/^static accentmap_t.* = /static accentmap_t accent_map = /'
- MD_ROOT_SIZE_CONFIGURED!= grep MD_ROOT_SIZE opt_md.h || true ; echo
- .if ${MFS_IMAGE:Uno} != "no"
- .if empty(MD_ROOT_SIZE_CONFIGURED)
- SYSTEM_OBJS+= embedfs_${MFS_IMAGE:T:R}.o
- .endif
- .endif
- SYSTEM_LD_BASECMD= \
- ${LD} -m ${LD_EMULATION} -Bdynamic -T ${LDSCRIPT} ${_LDFLAGS} \
- --no-warn-mismatch --warn-common --export-dynamic \
- --dynamic-linker /red/herring -X
- SYSTEM_LD= @${SYSTEM_LD_BASECMD} -o ${.TARGET} ${SYSTEM_OBJS} vers.o
- SYSTEM_LD_TAIL= @${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
- SYSTEM_DEP+= ${LDSCRIPT}
- # Calculate path for .m files early, if needed.
- .if !defined(NO_MODULES) && !defined(__MPATH) && !make(install) && \
- (empty(.MAKEFLAGS:M-V) || defined(NO_SKIP_MPATH))
- __MPATH!=find ${S:tA}/ -name \*_if.m
- .endif
- # MKMODULESENV is set here so that port makefiles can augment
- # them.
- MKMODULESENV+= MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
- MKMODULESENV+= MACHINE_CPUARCH=${MACHINE_CPUARCH}
- MKMODULESENV+= MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH}
- MKMODULESENV+= MODULES_EXTRA="${MODULES_EXTRA}" WITHOUT_MODULES="${WITHOUT_MODULES}"
- MKMODULESENV+= ARCH_FLAGS="${ARCH_FLAGS}"
- .if (${KERN_IDENT} == LINT)
- MKMODULESENV+= ALL_MODULES=LINT
- .endif
- .if defined(MODULES_OVERRIDE)
- MKMODULESENV+= MODULES_OVERRIDE="${MODULES_OVERRIDE}"
- .endif
- .if defined(DEBUG)
- MKMODULESENV+= DEBUG_FLAGS="${DEBUG}"
- .endif
- .if !defined(NO_MODULES)
- MKMODULESENV+= __MPATH="${__MPATH}"
- .endif
- # Detect kernel config options that force stack frames to be turned on.
- DDB_ENABLED!= grep DDB opt_ddb.h || true ; echo
- DTRACE_ENABLED!=grep KDTRACE_FRAME opt_kdtrace.h || true ; echo
- HWPMC_ENABLED!= grep HWPMC opt_hwpmc_hooks.h || true ; echo
|