bsd.kmodule.mk revision 1.59.12.1
1 # $NetBSD: bsd.kmodule.mk,v 1.59.12.1 2019/01/26 21:59:58 pgoyette Exp $ 2 3 # We are not building this with PIE 4 MKPIE=no 5 6 .include <bsd.init.mk> 7 .include <bsd.klinks.mk> 8 9 .if ${MKCTF:Uno} == "yes" 10 CFLAGS+= -g 11 # Only need symbols for ctf, strip them after converting to CTF 12 CTFFLAGS= -L VERSION 13 CTFMFLAGS= -t -L VERSION 14 .endif 15 16 .include <bsd.sys.mk> 17 18 ##### Basic targets 19 realinstall: kmodinstall 20 21 KERN= $S/kern 22 MKLDSCRIPT?= no 23 24 CFLAGS+= -ffreestanding ${COPTS} 25 CPPFLAGS+= -nostdinc -I. -I${.CURDIR} -isystem $S -isystem $S/arch 26 CPPFLAGS+= -isystem ${S}/../common/include 27 CPPFLAGS+= -D_KERNEL -D_LKM -D_MODULE -DSYSCTL_INCLUDE_DESCR 28 29 CWARNFLAGS.clang+= -Wno-error=address-of-packed-member -Wno-error=constant-conversion 30 31 # XXX until the kernel is fixed again... 32 CFLAGS+= -fno-strict-aliasing -Wno-pointer-sign 33 34 # XXX This is a workaround for platforms that have relative relocations 35 # that, when relocated by the module loader, result in addresses that 36 # overflow the size of the relocation (e.g. R_PPC_REL24 in powerpc). 37 # The real solution to this involves generating trampolines for those 38 # relocations inside the loader and removing this workaround, as the 39 # resulting code would be much faster. 40 .if ${MACHINE_CPU} == "arm" 41 CFLAGS+= -fno-common -fno-unwind-tables 42 .elif ${MACHINE_CPU} == "hppa" 43 CFLAGS+= -mlong-calls 44 .elif ${MACHINE_CPU} == "powerpc" 45 CFLAGS+= ${${ACTIVE_CC} == "gcc":? -mlongcall :} 46 .elif ${MACHINE_CPU} == "vax" 47 CFLAGS+= -fno-pic 48 .elif ${MACHINE_CPU} == "riscv" 49 CFLAGS+= -fPIC -Wa,-fno-pic 50 .elif ${MACHINE_ARCH} == "mips64eb" && !defined(BSD_MK_COMPAT_FILE) 51 CFLAGS+= -mabi=64 52 LDFLAGS+= -Wl,-m,elf64btsmip 53 .elif ${MACHINE_ARCH} == "mips64el" && !defined(BSD_MK_COMPAT_FILE) 54 CFLAGS+= -mabi=64 55 LDFLAGS+= -Wl,-m,elf64ltsmip 56 .endif 57 58 .if ${MACHINE_CPU} == "sparc64" 59 # force same memory model as rest of the kernel 60 CFLAGS+= ${${ACTIVE_CC} == "gcc":? -mcmodel=medlow :} 61 CFLAGS+= ${${ACTIVE_CC} == "clang":? -mcmodel=small :} 62 .endif 63 64 # evbppc needs some special help 65 .if ${MACHINE} == "evbppc" 66 67 . ifndef PPC_INTR_IMPL 68 PPC_INTR_IMPL=\"powerpc/intr.h\" 69 . endif 70 . ifndef PPC_PCI_MACHDEP_IMPL 71 PPC_PCI_MACHDEP_IMPL=\"powerpc/pci_machdep.h\" 72 . endif 73 CPPFLAGS+= -DPPC_INTR_IMPL=${PPC_INTR_IMPL} 74 CPPFLAGS+= -DPPC_PCI_MACHDEP_IMPL=${DPPC_PCI_MACHDEP_IMPL} 75 76 . ifdef PPC_IBM4XX 77 CPPFLAGS+= -DPPC_IBM4XX 78 . elifdef PPC_BOOKE 79 CPPFLAGS+= -DPPC_BOOKE 80 . else 81 CPPFLAGS+= -DPPC_OEA 82 . endif 83 84 .endif 85 86 87 _YKMSRCS= ${SRCS:M*.[ly]:C/\..$/.c/} ${YHEADER:D${SRCS:M*.y:.y=.h}} 88 DPSRCS+= ${_YKMSRCS} 89 CLEANFILES+= ${_YKMSRCS} 90 91 .if exists($S/../sys/modules/xldscripts/kmodule) 92 KMODSCRIPTSRC= $S/../sys/modules/xldscripts/kmodule 93 .else 94 KMODSCRIPTSRC= ${DESTDIR}/usr/libdata/ldscripts/kmodule 95 .endif 96 .if ${MKLDSCRIPT} == "yes" 97 KMODSCRIPT= kldscript 98 MKLDSCRIPTSH= 99 .else 100 KMODSCRIPT= ${KMODSCRIPTSRC} 101 .endif 102 103 PROG?= ${KMOD}.kmod 104 105 ##### Build rules 106 realall: ${PROG} 107 108 .if (defined(USE_COMBINE) && ${USE_COMBINE} != "no" && !commands(${_P}) \ 109 && !defined(NOCOMBINE.${_P}) && !defined(NOCOMBINE)) 110 .for f in ${SRCS:N*.h:N*.sh:N*.fth:C/\.[yl]$/.c/g} 111 .if (${CPPFLAGS.$f:D1} == "1" || ${CPUFLAGS.$f:D2} == "2" \ 112 || ${COPTS.$f:D3} == "3" || ${OBJCOPTS.$f:D4} == "4" \ 113 || ${CXXFLAGS.$f:D5} == "5") \ 114 || ("${f:M*.[cyl]}" == "" || commands(${f:R:S/$/.o/})) 115 XOBJS+= ${f:R:S/$/.o/} 116 .else 117 XSRCS+= ${f} 118 NODPSRCS+= ${f} 119 .endif 120 .endfor 121 122 .if !empty(XOBJS) 123 ${XOBJS}: ${DPSRCS} 124 .endif 125 126 .if ${MKLDSCRIPT} == "yes" 127 ${KMODSCRIPT}: ${KMODSCRIPTSRC} ${XOBJS} $S/conf/mkldscript.sh 128 @rm -f ${.TARGET} 129 @OBJDUMP=${OBJDUMP} ${HOST_SH} $S/conf/mkldscript.sh \ 130 -t ${KMODSCRIPTSRC} ${XOBJS} > ${.TARGET} 131 .endif 132 133 ${PROG}: ${XOBJS} ${XSRCS} ${DPSRCS} ${DPADD} ${KMODSCRIPT} 134 ${CC} ${LDFLAGS} -nostdlib -MD -combine -r -Wl,-T,${KMODSCRIPT},-d \ 135 -Wl,-Map=${.TARGET}.map \ 136 -o ${.TARGET} ${CFLAGS} ${CPPFLAGS} ${XOBJS} \ 137 ${XSRCS:@.SRC.@${.ALLSRC:M*.c:M*${.SRC.}}@:O:u} && \ 138 echo '.-include "${KMOD}.d"' > .depend 139 140 .else 141 OBJS+= ${SRCS:N*.h:N*.sh:R:S/$/.o/g} 142 143 ${OBJS} ${LOBJS}: ${DPSRCS} 144 145 .if ${MKLDSCRIPT} == "yes" 146 ${KMODSCRIPT}: ${KMODSCRIPTSRC} ${OBJS} $S/conf/mkldscript.sh 147 @rm -f ${.TARGET} 148 @OBJDUMP=${OBJDUMP} ${HOST_SH} $S/conf/mkldscript.sh \ 149 -t ${KMODSCRIPTSRC} ${OBJS} > ${.TARGET} 150 .endif 151 152 .if ${MACHINE_CPU} == "arm" 153 # The solution to limited branch space involves generating trampolines for 154 # those relocations while creating the module, as the resulting code will 155 # be much faster and simplifies the loader. 156 ARCHDIR= $S/modules/arch/${MACHINE_CPU} 157 ASM_H= $S/arch/${MACHINE_CPU}/include/asm.h 158 CLEANFILES+= tmp.o tmp.S ${KMOD}_tmp.o ${KMOD}_tramp.o ${KMOD}_tramp.S 159 ${KMOD}_tmp.o: ${OBJS} ${DPADD} 160 ${_MKTARGET_LINK} 161 ${LD} -r -o tmp.o ${OBJS} 162 ${LD} -r \ 163 `${OBJDUMP} --syms --reloc tmp.o | \ 164 ${TOOL_AWK} -f ${ARCHDIR}/kmodwrap.awk` \ 165 -o ${.TARGET} tmp.o 166 167 ${KMOD}_tramp.S: ${KMOD}_tmp.o ${ARCHDIR}/kmodtramp.awk ${ASM_H} 168 ${_MKTARGET_CREATE} 169 ${OBJDUMP} --syms --reloc ${KMOD}_tmp.o | \ 170 ${TOOL_AWK} -f ${ARCHDIR}/kmodtramp.awk \ 171 > tmp.S && \ 172 ${MV} tmp.S ${.TARGET} 173 174 ${PROG}: ${KMOD}_tmp.o ${KMOD}_tramp.o 175 ${_MKTARGET_LINK} 176 .if exists(${ARCHDIR}/kmodhide.awk) 177 ${LD} -r -Map=${.TARGET}.map \ 178 -o tmp.o ${KMOD}_tmp.o ${KMOD}_tramp.o 179 ${OBJCOPY} \ 180 `${NM} tmp.o | ${TOOL_AWK} -f ${ARCHDIR}/kmodhide.awk` \ 181 tmp.o ${.TARGET} && \ 182 rm tmp.o 183 .else 184 ${LD} -r -Map=${.TARGET}.map \ 185 -o ${.TARGET} ${KMOD}_tmp.o ${KMOD}_tramp.o 186 .endif 187 .else 188 ${PROG}: ${OBJS} ${DPADD} ${KMODSCRIPT} 189 ${_MKTARGET_LINK} 190 ${CC} ${LDFLAGS} -nostdlib -r -Wl,-T,${KMODSCRIPT},-d \ 191 -Wl,-Map=${.TARGET}.map \ 192 -o ${.TARGET} ${OBJS} 193 .endif 194 .endif 195 .if defined(CTFMERGE) 196 ${CTFMERGE} ${CTFMFLAGS} -o ${.TARGET} ${OBJS} 197 .endif 198 199 ##### Install rules 200 .if !target(kmodinstall) 201 .if !defined(KMODULEDIR) 202 _OSRELEASE!= ${HOST_SH} $S/conf/osrelease.sh -k 203 # Ensure these are recorded properly in METALOG on unprived installes: 204 KMODULEARCHDIR?= ${MACHINE} 205 _INST_DIRS= ${DESTDIR}/stand/${KMODULEARCHDIR} 206 _INST_DIRS+= ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE} 207 _INST_DIRS+= ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules 208 KMODULEDIR= ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules/${KMOD} 209 .endif 210 _PROG:= ${KMODULEDIR}/${PROG} # installed path 211 212 .if ${MKUPDATE} == "no" 213 ${_PROG}! ${PROG} # install rule 214 .if !defined(BUILD) && !make(all) && !make(${PROG}) 215 ${_PROG}! .MADE # no build at install 216 .endif 217 .else 218 ${_PROG}: ${PROG} # install rule 219 .if !defined(BUILD) && !make(all) && !make(${PROG}) 220 ${_PROG}: .MADE # no build at install 221 .endif 222 .endif 223 ${_MKTARGET_INSTALL} 224 dirs=${_INST_DIRS:Q}; \ 225 for d in $$dirs; do \ 226 ${INSTALL_DIR} $$d; \ 227 done 228 ${INSTALL_DIR} ${KMODULEDIR} 229 ${INSTALL_FILE} -o ${KMODULEOWN} -g ${KMODULEGRP} -m ${KMODULEMODE} \ 230 ${.ALLSRC} ${.TARGET} 231 232 kmodinstall:: ${_PROG} 233 .PHONY: kmodinstall 234 .PRECIOUS: ${_PROG} # keep if install fails 235 236 .undef _PROG 237 .endif # !target(kmodinstall) 238 239 ##### Clean rules 240 CLEANFILES+= a.out [Ee]rrs mklog core *.core ${PROG} ${OBJS} ${LOBJS} 241 CLEANFILES+= ${PROG}.map 242 .if ${MKLDSCRIPT} == "yes" 243 CLEANFILES+= kldscript 244 .endif 245 246 ##### Custom rules 247 lint: ${LOBJS} 248 .if defined(LOBJS) && !empty(LOBJS) 249 ${LINT} ${LINTFLAGS} ${LDFLAGS:C/-L[ ]*/-L/Wg:M-L*} ${LOBJS} ${LDADD} 250 .endif 251 252 ##### Pull in related .mk logic 253 LINKSOWN?= ${KMODULEOWN} 254 LINKSGRP?= ${KMODULEGRP} 255 LINKSMODE?= ${KMODULEMODE} 256 .include <bsd.man.mk> 257 .include <bsd.links.mk> 258 .include <bsd.dep.mk> 259 .include <bsd.clean.mk> 260 261 .-include "$S/arch/${MACHINE_CPU}/include/Makefile.inc" 262 .-include "$S/arch/${MACHINE}/include/Makefile.inc" 263
Indexes created Sun Oct 26 13:09:57 GMT 2025