bsd.kmodule.mk revision 1.70
1 # $NetBSD: bsd.kmodule.mk,v 1.70 2020/09/06 07:20:28 mrg 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 # Keep symbols if built with "-g" 15 .if !empty(COPTS:M*-g*) || ${MKDEBUG:Uno} == "yes" 16 CTFFLAGS+= -g 17 CTFMFLAGS+= -g 18 .endif 19 .endif 20 21 .include <bsd.sys.mk> 22 23 ##### Basic targets 24 realinstall: kmodinstall 25 26 KERN= $S/kern 27 MKLDSCRIPT?= no 28 29 CFLAGS+= -ffreestanding ${COPTS} 30 CPPFLAGS+= -nostdinc -I. -I${.CURDIR} -isystem $S -isystem $S/arch 31 CPPFLAGS+= -isystem ${S}/../common/include 32 CPPFLAGS+= -D_KERNEL -D_MODULE -DSYSCTL_INCLUDE_DESCR 33 34 CWARNFLAGS.clang+= -Wno-error=address-of-packed-member -Wno-error=constant-conversion 35 CWARNFLAGS.gcc+= ${GCC_NO_ADDR_OF_PACKED_MEMBER} 36 37 # XXX until the kernel is fixed again... 38 CFLAGS+= -fno-strict-aliasing -Wno-pointer-sign 39 40 # XXX This is a workaround for platforms that have relative relocations 41 # that, when relocated by the module loader, result in addresses that 42 # overflow the size of the relocation (e.g. R_PPC_REL24 in powerpc). 43 # The real solution to this involves generating trampolines for those 44 # relocations inside the loader and removing this workaround, as the 45 # resulting code would be much faster. 46 .if ${MACHINE_CPU} == "aarch64" 47 CFLAGS+= -march=armv8-a+nofp+nosimd 48 .elif ${MACHINE_CPU} == "arm" 49 CFLAGS+= -fno-common -fno-unwind-tables 50 .elif ${MACHINE_CPU} == "hppa" 51 CFLAGS+= -mlong-calls -mno-space-regs -mfast-indirect-calls 52 .elif ${MACHINE_CPU} == "powerpc" 53 CFLAGS+= ${${ACTIVE_CC} == "gcc":? -mlongcall :} 54 .elif ${MACHINE_CPU} == "vax" 55 CFLAGS+= -fno-pic 56 .elif ${MACHINE_CPU} == "riscv" 57 CFLAGS+= -fPIC -Wa,-fno-pic 58 .elif ${MACHINE_ARCH} == "mips64eb" && !defined(BSD_MK_COMPAT_FILE) 59 CFLAGS+= -mabi=64 60 LDFLAGS+= -Wl,-m,elf64btsmip 61 .elif ${MACHINE_ARCH} == "mips64el" && !defined(BSD_MK_COMPAT_FILE) 62 CFLAGS+= -mabi=64 63 LDFLAGS+= -Wl,-m,elf64ltsmip 64 .endif 65 66 .if ${MACHINE_CPU} == "sparc64" 67 # force same memory model as rest of the kernel 68 CFLAGS+= ${${ACTIVE_CC} == "gcc":? -mcmodel=medlow :} 69 CFLAGS+= ${${ACTIVE_CC} == "clang":? -mcmodel=small :} 70 .endif 71 72 # evbppc needs some special help 73 .if ${MACHINE} == "evbppc" 74 75 . ifndef PPC_INTR_IMPL 76 PPC_INTR_IMPL=\"powerpc/intr.h\" 77 . endif 78 . ifndef PPC_PCI_MACHDEP_IMPL 79 PPC_PCI_MACHDEP_IMPL=\"powerpc/pci_machdep.h\" 80 . endif 81 CPPFLAGS+= -DPPC_INTR_IMPL=${PPC_INTR_IMPL} 82 CPPFLAGS+= -DPPC_PCI_MACHDEP_IMPL=${DPPC_PCI_MACHDEP_IMPL} 83 84 . ifdef PPC_IBM4XX 85 CPPFLAGS+= -DPPC_IBM4XX 86 . elifdef PPC_BOOKE 87 CPPFLAGS+= -DPPC_BOOKE 88 . else 89 CPPFLAGS+= -DPPC_OEA 90 . endif 91 92 .endif 93 94 95 _YKMSRCS= ${SRCS:M*.[ly]:C/\..$/.c/} ${YHEADER:D${SRCS:M*.y:.y=.h}} 96 DPSRCS+= ${_YKMSRCS} 97 CLEANFILES+= ${_YKMSRCS} 98 99 .if exists($S/../sys/modules/xldscripts/kmodule) 100 KMODSCRIPTSRC= $S/../sys/modules/xldscripts/kmodule 101 .else 102 KMODSCRIPTSRC= ${DESTDIR}/usr/libdata/ldscripts/kmodule 103 .endif 104 .if ${MKLDSCRIPT} == "yes" 105 KMODSCRIPT= kldscript 106 MKLDSCRIPTSH= 107 .else 108 KMODSCRIPT= ${KMODSCRIPTSRC} 109 .endif 110 111 PROG?= ${KMOD}.kmod 112 .if ${MKDEBUG:Uno} != "no" && !defined(NODEBUG) && !commands(${PROG}) && \ 113 empty(SRCS:M*.sh) 114 PROGDEBUG:= ${PROG}.debug 115 .endif 116 117 ##### Build rules 118 realall: ${PROG} ${PROGDEBUG} 119 120 OBJS+= ${SRCS:N*.h:N*.sh:R:S/$/.o/g} 121 122 ${OBJS} ${LOBJS}: ${DPSRCS} 123 124 .if ${MKLDSCRIPT} == "yes" 125 ${KMODSCRIPT}: ${KMODSCRIPTSRC} ${OBJS} $S/conf/mkldscript.sh 126 @rm -f ${.TARGET} 127 @OBJDUMP=${OBJDUMP} ${HOST_SH} $S/conf/mkldscript.sh \ 128 -t ${KMODSCRIPTSRC} ${OBJS} > ${.TARGET} 129 .endif 130 131 .if ${MACHINE_CPU} == "arm" 132 # The solution to limited branch space involves generating trampolines for 133 # those relocations while creating the module, as the resulting code will 134 # be much faster and simplifies the loader. 135 ARCHDIR= $S/modules/arch/${MACHINE_CPU} 136 ASM_H= $S/arch/${MACHINE_CPU}/include/asm.h 137 CLEANFILES+= tmp.o tmp.S ${KMOD}_tmp.o ${KMOD}_tramp.o ${KMOD}_tramp.S 138 ${KMOD}_tmp.o: ${OBJS} ${DPADD} 139 ${_MKTARGET_LINK} 140 ${LD} -r -o tmp.o ${OBJS} 141 ${LD} -r \ 142 `${OBJDUMP} --syms --reloc tmp.o | \ 143 ${TOOL_AWK} -f ${ARCHDIR}/kmodwrap.awk` \ 144 -o ${.TARGET} tmp.o 145 146 ${KMOD}_tramp.S: ${KMOD}_tmp.o ${ARCHDIR}/kmodtramp.awk ${ASM_H} 147 ${_MKTARGET_CREATE} 148 ${OBJDUMP} --syms --reloc ${KMOD}_tmp.o | \ 149 ${TOOL_AWK} -f ${ARCHDIR}/kmodtramp.awk \ 150 > tmp.S && \ 151 ${MV} tmp.S ${.TARGET} 152 153 ${PROG}: ${KMOD}_tmp.o ${KMOD}_tramp.o 154 ${_MKTARGET_LINK} 155 .if exists(${ARCHDIR}/kmodhide.awk) 156 ${LD} -r -Map=${.TARGET}.map \ 157 -o tmp.o ${KMOD}_tmp.o ${KMOD}_tramp.o 158 ${OBJCOPY} \ 159 `${NM} tmp.o | ${TOOL_AWK} -f ${ARCHDIR}/kmodhide.awk` \ 160 tmp.o ${.TARGET} && \ 161 rm tmp.o 162 .else 163 ${LD} -r -Map=${.TARGET}.map \ 164 -o ${.TARGET} ${KMOD}_tmp.o ${KMOD}_tramp.o 165 .endif 166 .else 167 ${PROG}: ${OBJS} ${DPADD} ${KMODSCRIPT} 168 ${_MKTARGET_LINK} 169 ${CC} ${LDFLAGS} -nostdlib -r -Wl,-T,${KMODSCRIPT},-d \ 170 -Wl,-Map=${.TARGET}.map \ 171 -o ${.TARGET} ${OBJS} 172 .endif 173 .if defined(CTFMERGE) 174 ${CTFMERGE} ${CTFMFLAGS} -o ${.TARGET} ${OBJS} 175 .endif 176 177 .if defined(PROGDEBUG) 178 ${PROGDEBUG}: ${PROG} 179 ${_MKTARGET_CREATE} 180 ( ${OBJCOPY} --only-keep-debug ${PROG} ${PROGDEBUG} \ 181 && ${OBJCOPY} --strip-debug -p -R .gnu_debuglink \ 182 --add-gnu-debuglink=${PROGDEBUG} ${PROG} \ 183 ) || (rm -f ${PROGDEBUG}; false) 184 .endif 185 186 ##### Install rules 187 .if !target(kmodinstall) 188 .if !defined(KMODULEDIR) 189 .if ${KERNEL_DIR:Uno} == "yes" 190 _INST_DIRS= /netbsd 191 _INST_DIRS+= /netbsd/modules 192 KMODULEDIR= /netbsd/modules/${KMOD} 193 .else 194 # Ensure these are recorded properly in METALOG on unprived installes: 195 _OSRELEASE!= ${HOST_SH} $S/conf/osrelease.sh -k 196 KMODULEARCHDIR?= ${MACHINE} 197 _INST_DIRS= /stand/${KMODULEARCHDIR} 198 _INST_DIRS+= /stand/${KMODULEARCHDIR}/${_OSRELEASE} 199 _INST_DIRS+= /stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules 200 KMODULEDIR= /stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules/${KMOD} 201 .endif 202 .endif 203 204 _INST_DIRS+= ${KMODULEDIR} 205 _PROG:= ${DESTDIR}${KMODULEDIR}/${PROG} # installed path 206 207 .if defined(PROGDEBUG) 208 .for i in ${_INST_DIRS} 209 _DEBUG_INST_DIRS += ${DEBUGDIR}${i} 210 .endfor 211 _INST_DIRS += ${_DEBUG_INST_DIRS} 212 _PROGDEBUG:= ${DESTDIR}${DEBUGDIR}${KMODULEDIR}/${PROG}.debug 213 .endif 214 215 .for _P P in ${_PROG} ${PROG} ${_PROGDEBUG} ${PROGDEBUG} 216 .if ${MKUPDATE} == "no" 217 ${_P}! ${P} # install rule 218 .if !defined(BUILD) && !make(all) && !make(${P}) 219 ${_P}! .MADE # no build at install 220 .endif 221 .else 222 ${_P}: ${P} # install rule 223 .if !defined(BUILD) && !make(all) && !make(${P}) 224 ${_P}: .MADE # no build at install 225 .endif 226 .endif 227 ${_MKTARGET_INSTALL} 228 dirs=${_INST_DIRS:Q}; \ 229 for d in $$dirs; do \ 230 ${INSTALL_DIR} ${DESTDIR}$$d; \ 231 done 232 ${INSTALL_FILE} -o ${KMODULEOWN} -g ${KMODULEGRP} -m ${KMODULEMODE} \ 233 ${.ALLSRC} ${.TARGET} 234 235 kmodinstall:: ${_P} 236 .PHONY: kmodinstall 237 .PRECIOUS: ${_P} # keep if install fails 238 .endfor 239 240 .undef _PPROG 241 .undef _PPROGDEBUG 242 .endif # !target(kmodinstall) 243 244 ##### Clean rules 245 CLEANFILES+= a.out [Ee]rrs mklog core *.core ${PROG} ${OBJS} ${LOBJS} 246 CLEANFILES+= ${PROGDEBUG} 247 CLEANFILES+= ${PROG}.map 248 .if ${MKLDSCRIPT} == "yes" 249 CLEANFILES+= kldscript 250 .endif 251 252 ##### Custom rules 253 lint: ${LOBJS} 254 .if defined(LOBJS) && !empty(LOBJS) 255 ${LINT} ${LINTFLAGS} ${LDFLAGS:C/-L[ ]*/-L/Wg:M-L*} ${LOBJS} ${LDADD} 256 .endif 257 258 ##### Pull in related .mk logic 259 LINKSOWN?= ${KMODULEOWN} 260 LINKSGRP?= ${KMODULEGRP} 261 LINKSMODE?= ${KMODULEMODE} 262 .include <bsd.man.mk> 263 .include <bsd.links.mk> 264 .include <bsd.dep.mk> 265 .include <bsd.clean.mk> 266 267 .-include "$S/arch/${MACHINE_CPU}/include/Makefile.inc" 268 .-include "$S/arch/${MACHINE}/include/Makefile.inc" 269
Indexes created Sun Oct 26 21:10:03 GMT 2025