506 lines
14 KiB
Makefile
506 lines
14 KiB
Makefile
# From: @(#)bsd.prog.mk 5.26 (Berkeley) 6/25/91
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# $FreeBSD$
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#
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# The include file <bsd.kmod.mk> handles building and installing loadable
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# kernel modules.
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#
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#
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# +++ variables +++
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#
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# CLEANFILES Additional files to remove for the clean and cleandir targets.
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#
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# EXPORT_SYMS A list of symbols that should be exported from the module,
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# or the name of a file containing a list of symbols, or YES
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# to export all symbols. If not defined, no symbols are
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# exported.
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#
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# KMOD The name of the kernel module to build.
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#
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# KMODDIR Base path for kernel modules (see kld(4)). [/boot/kernel]
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#
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# KMODOWN Module file owner. [${BINOWN}]
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#
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# KMODGRP Module file group. [${BINGRP}]
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#
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# KMODMODE Module file mode. [${BINMODE}]
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#
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# KMODLOAD Command to load a kernel module [/sbin/kldload]
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#
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# KMODUNLOAD Command to unload a kernel module [/sbin/kldunload]
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#
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# KMODISLOADED Command to check whether a kernel module is
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# loaded [/sbin/kldstat -q -n]
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#
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# PROG The name of the kernel module to build.
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# If not supplied, ${KMOD}.ko is used.
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#
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# SRCS List of source files.
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#
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# FIRMWS List of firmware images in format filename:shortname:version
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#
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# FIRMWARE_LICENSE
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# Set to the name of the license the user has to agree on in
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# order to use this firmware. See /usr/share/doc/legal
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#
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# DESTDIR The tree where the module gets installed. [not set]
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#
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# KERNBUILDDIR
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# Set to the location of the kernel build directory where
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# the opt_*.h files, .o's and kernel winds up.
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#
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# +++ targets +++
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#
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# install:
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# install the kernel module; if the Makefile
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# does not itself define the target install, the targets
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# beforeinstall and afterinstall may also be used to cause
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# actions immediately before and after the install target
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# is executed.
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#
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# load:
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# Load a module.
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#
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# unload:
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# Unload a module.
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#
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# reload:
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# Unload if loaded, then load.
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#
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AWK?= awk
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KMODLOAD?= /sbin/kldload
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KMODUNLOAD?= /sbin/kldunload
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KMODISLOADED?= /sbin/kldstat -q -n
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OBJCOPY?= objcopy
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.include <bsd.init.mk>
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# Grab all the options for a kernel build. For backwards compat, we need to
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# do this after bsd.own.mk.
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.include "kern.opts.mk"
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.include <bsd.compiler.mk>
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.include "config.mk"
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# Search for kernel source tree in standard places.
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.if empty(KERNBUILDDIR)
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.if !defined(SYSDIR)
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.for _dir in ${SRCTOP:D${SRCTOP}/sys} \
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${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys
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.if !defined(SYSDIR) && exists(${_dir}/kern/)
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SYSDIR= ${_dir:tA}
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.endif
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.endfor
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.endif
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.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/)
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.error "can't find kernel source tree"
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.endif
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.endif
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.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S .m
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# amd64 and mips use direct linking for kmod, all others use shared binaries
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.if ${MACHINE_CPUARCH} != amd64 && ${MACHINE_CPUARCH} != mips
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__KLD_SHARED=yes
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.else
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__KLD_SHARED=no
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.endif
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.if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing)
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CFLAGS+= -fno-strict-aliasing
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.endif
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WERROR?= -Werror
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CFLAGS+= ${WERROR}
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CFLAGS+= -D_KERNEL
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CFLAGS+= -DKLD_MODULE
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.if defined(MODULE_TIED)
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CFLAGS+= -DKLD_TIED
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.endif
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# Don't use any standard or source-relative include directories.
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NOSTDINC= -nostdinc
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CFLAGS:= ${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*}
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.if defined(KERNBUILDDIR)
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CFLAGS+= -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h
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.endif
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# Add -I paths for system headers. Individual module makefiles don't
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# need any -I paths for this. Similar defaults for .PATH can't be
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# set because there are no standard paths for non-headers.
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CFLAGS+= -I. -I${SYSDIR} -I${SYSDIR}/contrib/ck/include
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CFLAGS.gcc+= -finline-limit=${INLINE_LIMIT}
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CFLAGS.gcc+= -fms-extensions
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CFLAGS.gcc+= --param inline-unit-growth=100
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CFLAGS.gcc+= --param large-function-growth=1000
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# Disallow common variables, and if we end up with commons from
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# somewhere unexpected, allocate storage for them in the module itself.
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CFLAGS+= -fno-common
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LDFLAGS+= -d -warn-common
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.if defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mbuild-id}
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LDFLAGS+= -Wl,--build-id=sha1
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.endif
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CFLAGS+= ${DEBUG_FLAGS}
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.if ${MACHINE_CPUARCH} == amd64
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CFLAGS+= -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer
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.endif
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.if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "riscv"
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CFLAGS+= -fPIC
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.endif
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# Temporary workaround for PR 196407, which contains the fascinating details.
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# Don't allow clang to use fpu instructions or registers in kernel modules.
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.if ${MACHINE_CPUARCH} == arm
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.if ${COMPILER_VERSION} < 30800
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CFLAGS.clang+= -mllvm -arm-use-movt=0
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.else
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CFLAGS.clang+= -mno-movt
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.endif
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CFLAGS.clang+= -mfpu=none
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CFLAGS+= -funwind-tables
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.endif
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.if ${MACHINE_CPUARCH} == powerpc
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CFLAGS+= -mlongcall -fno-omit-frame-pointer
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.endif
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.if ${MACHINE_CPUARCH} == mips
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CFLAGS+= -G0 -fno-pic -mno-abicalls -mlong-calls
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.endif
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.if defined(DEBUG) || defined(DEBUG_FLAGS)
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CTFFLAGS+= -g
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.endif
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.if defined(FIRMWS)
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${KMOD:S/$/.c/}: ${SYSDIR}/tools/fw_stub.awk
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${AWK} -f ${SYSDIR}/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \
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${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE}
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SRCS+= ${KMOD:S/$/.c/}
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CLEANFILES+= ${KMOD:S/$/.c/}
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.for _firmw in ${FIRMWS}
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${_firmw:C/\:.*$/.fwo/:T}: ${_firmw:C/\:.*$//}
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@${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}}
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@if [ -e ${_firmw:C/\:.*$//} ]; then \
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${LD} -b binary --no-warn-mismatch ${_LDFLAGS} \
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-m ${LD_EMULATION} -r -d \
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-o ${.TARGET} ${_firmw:C/\:.*$//}; \
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else \
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ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \
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${LD} -b binary --no-warn-mismatch ${_LDFLAGS} \
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-m ${LD_EMULATION} -r -d \
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-o ${.TARGET} ${_firmw:C/\:.*$//}; \
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rm ${_firmw:C/\:.*$//}; \
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fi
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OBJS+= ${_firmw:C/\:.*$/.fwo/:T}
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.endfor
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.endif
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# Conditionally include SRCS based on kernel config options.
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.for _o in ${KERN_OPTS}
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SRCS+=${SRCS.${_o}}
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.endfor
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OBJS+= ${SRCS:N*.h:R:S/$/.o/g}
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.if !defined(PROG)
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PROG= ${KMOD}.ko
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.endif
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.if !defined(DEBUG_FLAGS)
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FULLPROG= ${PROG}
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.else
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FULLPROG= ${PROG}.full
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${PROG}: ${FULLPROG} ${PROG}.debug
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${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.debug \
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${FULLPROG} ${.TARGET}
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${PROG}.debug: ${FULLPROG}
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${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET}
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.endif
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.if ${__KLD_SHARED} == yes
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${FULLPROG}: ${KMOD}.kld
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${LD} -m ${LD_EMULATION} -Bshareable -znotext ${_LDFLAGS} \
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-o ${.TARGET} ${KMOD}.kld
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.if !defined(DEBUG_FLAGS)
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${OBJCOPY} --strip-debug ${.TARGET}
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.endif
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.endif
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EXPORT_SYMS?= NO
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.if ${EXPORT_SYMS} != YES
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CLEANFILES+= export_syms
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.endif
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.if ${__KLD_SHARED} == yes
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${KMOD}.kld: ${OBJS}
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.else
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${FULLPROG}: ${OBJS}
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.endif
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${LD} -m ${LD_EMULATION} ${_LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
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.if ${MK_CTF} != "no"
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${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS}
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.endif
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.if defined(EXPORT_SYMS)
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.if ${EXPORT_SYMS} != YES
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.if ${EXPORT_SYMS} == NO
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:> export_syms
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.elif !exists(${.CURDIR}/${EXPORT_SYMS})
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echo -n "${EXPORT_SYMS:@s@$s${.newline}@}" > export_syms
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.else
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grep -v '^#' < ${EXPORT_SYMS} > export_syms
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.endif
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${AWK} -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \
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export_syms | xargs -J% ${OBJCOPY} % ${.TARGET}
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.endif
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.endif # defined(EXPORT_SYMS)
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.if defined(PREFIX_SYMS)
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${AWK} -v prefix=${PREFIX_SYMS} -f ${SYSDIR}/conf/kmod_syms_prefix.awk \
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${.TARGET} /dev/null | xargs -J% ${OBJCOPY} % ${.TARGET}
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.endif
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.if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no
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${OBJCOPY} --strip-debug ${.TARGET}
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.endif
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_ILINKS=machine
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.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
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_ILINKS+=${MACHINE_CPUARCH}
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.endif
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.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
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_ILINKS+=x86
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.endif
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CLEANFILES+=${_ILINKS}
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all: ${PROG}
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beforedepend: ${_ILINKS}
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beforebuild: ${_ILINKS}
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# Ensure that the links exist without depending on it when it exists which
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# causes all the modules to be rebuilt when the directory pointed to changes.
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.for _link in ${_ILINKS}
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.if !exists(${.OBJDIR}/${_link})
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OBJS_DEPEND_GUESS+= ${_link}
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.endif
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.endfor
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.NOPATH: ${_ILINKS}
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${_ILINKS}:
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@case ${.TARGET} in \
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machine) \
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path=${SYSDIR}/${MACHINE}/include ;; \
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*) \
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path=${SYSDIR}/${.TARGET:T}/include ;; \
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esac ; \
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path=`(cd $$path && /bin/pwd)` ; \
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${ECHO} ${.TARGET:T} "->" $$path ; \
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ln -fns $$path ${.TARGET:T}
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CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS}
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.if defined(DEBUG_FLAGS)
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CLEANFILES+= ${FULLPROG} ${PROG}.debug
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.endif
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.if !target(install)
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_INSTALLFLAGS:= ${INSTALLFLAGS}
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.for ie in ${INSTALLFLAGS_EDIT}
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_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
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.endfor
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.if !target(realinstall)
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KERN_DEBUGDIR?= ${DEBUGDIR}
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realinstall: _kmodinstall
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.ORDER: beforeinstall _kmodinstall
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_kmodinstall: .PHONY
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${INSTALL} -T release -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
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${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}/
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.if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no"
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${INSTALL} -T debug -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
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${_INSTALLFLAGS} ${PROG}.debug ${DESTDIR}${KERN_DEBUGDIR}${KMODDIR}/
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.endif
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.include <bsd.links.mk>
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.if !defined(NO_XREF)
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afterinstall: _kldxref
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.ORDER: realinstall _kldxref
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.ORDER: _installlinks _kldxref
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_kldxref: .PHONY
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@if type kldxref >/dev/null 2>&1; then \
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${ECHO} kldxref ${DESTDIR}${KMODDIR}; \
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kldxref ${DESTDIR}${KMODDIR}; \
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fi
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.endif
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.endif # !target(realinstall)
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.endif # !target(install)
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.if !target(load)
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load: ${PROG} .PHONY
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${KMODLOAD} -v ${.OBJDIR}/${PROG}
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.endif
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.if !target(unload)
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unload: .PHONY
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if ${KMODISLOADED} ${PROG} ; then ${KMODUNLOAD} -v ${PROG} ; fi
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.endif
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.if !target(reload)
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reload: unload load .PHONY
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.endif
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.if defined(KERNBUILDDIR)
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.PATH: ${KERNBUILDDIR}
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CFLAGS+= -I${KERNBUILDDIR}
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.for _src in ${SRCS:Mopt_*.h}
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CLEANFILES+= ${_src}
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.if !target(${_src})
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${_src}:
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ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET}
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.endif
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.endfor
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.else
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.for _src in ${SRCS:Mopt_*.h}
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CLEANFILES+= ${_src}
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.if !target(${_src})
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${_src}:
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:> ${.TARGET}
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.endif
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.endfor
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.endif
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# Respect configuration-specific C flags.
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CFLAGS+= ${ARCH_FLAGS} ${CONF_CFLAGS}
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.if !empty(SRCS:Mvnode_if.c)
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CLEANFILES+= vnode_if.c
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vnode_if.c: ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src
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${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -c
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.endif
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.if !empty(SRCS:Mvnode_if.h)
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CLEANFILES+= vnode_if.h vnode_if_newproto.h vnode_if_typedef.h
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vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: ${SYSDIR}/tools/vnode_if.awk \
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${SYSDIR}/kern/vnode_if.src
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vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h
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${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -h
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vnode_if_newproto.h:
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${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -p
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vnode_if_typedef.h:
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${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -q
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.endif
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# Build _if.[ch] from _if.m, and clean them when we're done.
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# __MPATH defined in config.mk
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_MFILES=${__MPATH:T:O}
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_MPATH=${__MPATH:H:O:u}
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.PATH.m: ${_MPATH}
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.for _i in ${SRCS:M*_if.[ch]}
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_MATCH=M${_i:R:S/$/.m/}
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_MATCHES=${_MFILES:${_MATCH}}
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.if !empty(_MATCHES)
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CLEANFILES+= ${_i}
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.endif
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.endfor # _i
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.m.c: ${SYSDIR}/tools/makeobjops.awk
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${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${.IMPSRC} -c
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.m.h: ${SYSDIR}/tools/makeobjops.awk
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${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${.IMPSRC} -h
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.for _i in mii pccard
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.if !empty(SRCS:M${_i}devs.h)
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CLEANFILES+= ${_i}devs.h
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${_i}devs.h: ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs
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${AWK} -f ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs
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.endif
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.endfor # _i
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.if !empty(SRCS:Mbhnd_nvram_map.h)
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CLEANFILES+= bhnd_nvram_map.h
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bhnd_nvram_map.h: ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.awk \
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${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
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${SYSDIR}/dev/bhnd/nvram/nvram_map
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bhnd_nvram_map.h:
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sh ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
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${SYSDIR}/dev/bhnd/nvram/nvram_map -h
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.endif
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.if !empty(SRCS:Mbhnd_nvram_map_data.h)
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CLEANFILES+= bhnd_nvram_map_data.h
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bhnd_nvram_map_data.h: ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.awk \
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${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
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${SYSDIR}/dev/bhnd/nvram/nvram_map
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bhnd_nvram_map_data.h:
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sh ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
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${SYSDIR}/dev/bhnd/nvram/nvram_map -d
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.endif
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.if !empty(SRCS:Musbdevs.h)
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CLEANFILES+= usbdevs.h
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usbdevs.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs
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${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -h
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.endif
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.if !empty(SRCS:Musbdevs_data.h)
|
|
CLEANFILES+= usbdevs_data.h
|
|
usbdevs_data.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs
|
|
${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -d
|
|
.endif
|
|
|
|
.if !empty(SRCS:Macpi_quirks.h)
|
|
CLEANFILES+= acpi_quirks.h
|
|
acpi_quirks.h: ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks
|
|
${AWK} -f ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks
|
|
.endif
|
|
|
|
.if !empty(SRCS:Massym.inc) || !empty(DPSRCS:Massym.inc)
|
|
CLEANFILES+= assym.inc
|
|
DEPENDOBJS+= genassym.o
|
|
DPSRCS+= offset.inc
|
|
.endif
|
|
.if defined(MODULE_TIED)
|
|
DPSRCS+= offset.inc
|
|
.endif
|
|
.if !empty(SRCS:Moffset.inc) || !empty(DPSRCS:Moffset.inc)
|
|
CLEANFILES+= offset.inc genoffset.o
|
|
DEPENDOBJS+= genoffset.o
|
|
.endif
|
|
assym.inc: genassym.o
|
|
offset.inc: genoffset.o
|
|
assym.inc: ${SYSDIR}/kern/genassym.sh
|
|
sh ${SYSDIR}/kern/genassym.sh genassym.o > ${.TARGET}
|
|
genassym.o: ${SYSDIR}/${MACHINE}/${MACHINE}/genassym.c offset.inc
|
|
genassym.o: ${SRCS:Mopt_*.h}
|
|
${CC} -c ${CFLAGS:N-flto:N-fno-common} \
|
|
${SYSDIR}/${MACHINE}/${MACHINE}/genassym.c
|
|
offset.inc: ${SYSDIR}/kern/genoffset.sh genoffset.o
|
|
sh ${SYSDIR}/kern/genoffset.sh genoffset.o > ${.TARGET}
|
|
genoffset.o: ${SYSDIR}/kern/genoffset.c
|
|
genoffset.o: ${SRCS:Mopt_*.h}
|
|
${CC} -c ${CFLAGS:N-flto:N-fno-common} \
|
|
${SYSDIR}/kern/genoffset.c
|
|
|
|
CLEANDEPENDFILES+= ${_ILINKS}
|
|
# .depend needs include links so we remove them only together.
|
|
cleanilinks:
|
|
rm -f ${_ILINKS}
|
|
|
|
OBJS_DEPEND_GUESS+= ${SRCS:M*.h}
|
|
.if defined(KERNBUILDDIR)
|
|
OBJS_DEPEND_GUESS+= opt_global.h
|
|
.endif
|
|
|
|
.include <bsd.dep.mk>
|
|
.include <bsd.clang-analyze.mk>
|
|
.include <bsd.obj.mk>
|
|
.include "kern.mk"
|