bsd.kmodule.mk revision 1.68
1 # $NetBSD: bsd.kmodule.mk,v 1.68 2020/05/11 10:21:24 skrll 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_LKM -D_MODULE -DSYSCTL_INCLUDE_DESCR 33 34 CWARNFLAGS.clang+= -Wno-error=address-of-packed-member -Wno-error=constant-conversion 35 36 # XXX until the kernel is fixed again... 37 CFLAGS+= -fno-strict-aliasing -Wno-pointer-sign 38 39 # XXX This is a workaround for platforms that have relative relocations 40 # that, when relocated by the module loader, result in addresses that 41 # overflow the size of the relocation (e.g. R_PPC_REL24 in powerpc). 42 # The real solution to this involves generating trampolines for those 43 # relocations inside the loader and removing this workaround, as the 44 # resulting code would be much faster. 45 .if ${MACHINE_CPU} == "aarch64" 46 CFLAGS+= -march=armv8-a+nofp+nosimd 47 .elif ${MACHINE_CPU} == "arm" 48 CFLAGS+= -fno-common -fno-unwind-tables 49 .elif ${MACHINE_CPU} == "hppa" 50 CFLAGS+= -mlong-calls -mno-space-regs -mfast-indirect-calls 51 .elif ${MACHINE_CPU} == "powerpc" 52 CFLAGS+= ${${ACTIVE_CC} == "gcc":? -mlongcall :} 53 .elif ${MACHINE_CPU} == "vax" 54 CFLAGS+= -fno-pic 55 .elif ${MACHINE_CPU} == "riscv" 56 CFLAGS+= -fPIC -Wa,-fno-pic 57 .elif ${MACHINE_ARCH} == "mips64eb" && !defined(BSD_MK_COMPAT_FILE) 58 CFLAGS+= -mabi=64 59 LDFLAGS+= -Wl,-m,elf64btsmip 60 .elif ${MACHINE_ARCH} == "mips64el" && !defined(BSD_MK_COMPAT_FILE) 61 CFLAGS+= -mabi=64 62 LDFLAGS+= -Wl,-m,elf64ltsmip 63 .endif 64 65 .if ${MACHINE_CPU} == "sparc64" 66 # force same memory model as rest of the kernel 67 CFLAGS+= ${${ACTIVE_CC} == "gcc":? -mcmodel=medlow :} 68 CFLAGS+= ${${ACTIVE_CC} == "clang":? -mcmodel=small :} 69 .endif 70 71 # evbppc needs some special help 72 .if ${MACHINE} == "evbppc" 73 74 . ifndef PPC_INTR_IMPL 75 PPC_INTR_IMPL=\"powerpc/intr.h\" 76 . endif 77 . ifndef PPC_PCI_MACHDEP_IMPL 78 PPC_PCI_MACHDEP_IMPL=\"powerpc/pci_machdep.h\" 79 . endif 80 CPPFLAGS+= -DPPC_INTR_IMPL=${PPC_INTR_IMPL} 81 CPPFLAGS+= -DPPC_PCI_MACHDEP_IMPL=${DPPC_PCI_MACHDEP_IMPL} 82 83 . ifdef PPC_IBM4XX 84 CPPFLAGS+= -DPPC_IBM4XX 85 . elifdef PPC_BOOKE 86 CPPFLAGS+= -DPPC_BOOKE 87 . else 88 CPPFLAGS+= -DPPC_OEA 89 . endif 90 91 .endif 92 93 94 _YKMSRCS= ${SRCS:M*.[ly]:C/\..$/.c/} ${YHEADER:D${SRCS:M*.y:.y=.h}} 95 DPSRCS+= ${_YKMSRCS} 96 CLEANFILES+= ${_YKMSRCS} 97 98 .if exists($S/../sys/modules/xldscripts/kmodule) 99 KMODSCRIPTSRC= $S/../sys/modules/xldscripts/kmodule 100 .else 101 KMODSCRIPTSRC= ${DESTDIR}/usr/libdata/ldscripts/kmodule 102 .endif 103 .if ${MKLDSCRIPT} == "yes" 104 KMODSCRIPT= kldscript 105 MKLDSCRIPTSH= 106 .else 107 KMODSCRIPT= ${KMODSCRIPTSRC} 108 .endif 109 110 PROG?= ${KMOD}.kmod 111 .if ${MKDEBUG:Uno} != "no" && !defined(NODEBUG) && !commands(${PROG}) && \ 112 empty(SRCS:M*.sh) 113 PROGDEBUG:= ${PROG}.debug 114 .endif 115 116 ##### Build rules 117 realall: ${PROG} ${PROGDEBUG} 118 119 OBJS+= ${SRCS:N*.h:N*.sh:R:S/$/.o/g} 120 121 ${OBJS} ${LOBJS}: ${DPSRCS} 122 123 .if ${MKLDSCRIPT} == "yes" 124 ${KMODSCRIPT}: ${KMODSCRIPTSRC} ${OBJS} $S/conf/mkldscript.sh 125 @rm -f ${.TARGET} 126 @OBJDUMP=${OBJDUMP} ${HOST_SH} $S/conf/mkldscript.sh \ 127 -t ${KMODSCRIPTSRC} ${OBJS} > ${.TARGET} 128 .endif 129 130 .if ${MACHINE_CPU} == "arm" 131 # The solution to limited branch space involves generating trampolines for 132 # those relocations while creating the module, as the resulting code will 133 # be much faster and simplifies the loader. 134 ARCHDIR= $S/modules/arch/${MACHINE_CPU} 135 ASM_H= $S/arch/${MACHINE_CPU}/include/asm.h 136 CLEANFILES+= tmp.o tmp.S ${KMOD}_tmp.o ${KMOD}_tramp.o ${KMOD}_tramp.S 137 ${KMOD}_tmp.o: ${OBJS} ${DPADD} 138 ${_MKTARGET_LINK} 139 ${LD} -r -o tmp.o ${OBJS} 140 ${LD} -r \ 141 `${OBJDUMP} --syms --reloc tmp.o | \ 142 ${TOOL_AWK} -f ${ARCHDIR}/kmodwrap.awk` \ 143 -o ${.TARGET} tmp.o 144 145 ${KMOD}_tramp.S: ${KMOD}_tmp.o ${ARCHDIR}/kmodtramp.awk ${ASM_H} 146 ${_MKTARGET_CREATE} 147 ${OBJDUMP} --syms --reloc ${KMOD}_tmp.o | \ 148 ${TOOL_AWK} -f ${ARCHDIR}/kmodtramp.awk \ 149 > tmp.S && \ 150 ${MV} tmp.S ${.TARGET} 151 152 ${PROG}: ${KMOD}_tmp.o ${KMOD}_tramp.o 153 ${_MKTARGET_LINK} 154 .if exists(${ARCHDIR}/kmodhide.awk) 155 ${LD} -r -Map=${.TARGET}.map \ 156 -o tmp.o ${KMOD}_tmp.o ${KMOD}_tramp.o 157 ${OBJCOPY} \ 158 `${NM} tmp.o | ${TOOL_AWK} -f ${ARCHDIR}/kmodhide.awk` \ 159 tmp.o ${.TARGET} && \ 160 rm tmp.o 161 .else 162 ${LD} -r -Map=${.TARGET}.map \ 163 -o ${.TARGET} ${KMOD}_tmp.o ${KMOD}_tramp.o 164 .endif 165 .else 166 ${PROG}: ${OBJS} ${DPADD} ${KMODSCRIPT} 167 ${_MKTARGET_LINK} 168 ${CC} ${LDFLAGS} -nostdlib -r -Wl,-T,${KMODSCRIPT},-d \ 169 -Wl,-Map=${.TARGET}.map \ 170 -o ${.TARGET} ${OBJS} 171 .endif 172 .if defined(CTFMERGE) 173 ${CTFMERGE} ${CTFMFLAGS} -o ${.TARGET} ${OBJS} 174 .endif 175 176 .if defined(PROGDEBUG) 177 ${PROGDEBUG}: ${PROG} 178 ${_MKTARGET_CREATE} 179 ( ${OBJCOPY} --only-keep-debug ${PROG} ${PROGDEBUG} \ 180 && ${OBJCOPY} --strip-debug -p -R .gnu_debuglink \ 181 --add-gnu-debuglink=${PROGDEBUG} ${PROG} \ 182 ) || (rm -f ${PROGDEBUG}; false) 183 .endif 184 185 ##### Install rules 186 .if !target(kmodinstall) 187 .if !defined(KMODULEDIR) 188 .if ${KERNEL_DIR:Uno} == "yes" 189 _INST_DIRS= /netbsd 190 _INST_DIRS+= /netbsd/modules 191 KMODULEDIR= /netbsd/modules/${KMOD} 192 .else 193 # Ensure these are recorded properly in METALOG on unprived installes: 194 _OSRELEASE!= ${HOST_SH} $S/conf/osrelease.sh -k 195 KMODULEARCHDIR?= ${MACHINE} 196 _INST_DIRS= /stand/${KMODULEARCHDIR} 197 _INST_DIRS+= /stand/${KMODULEARCHDIR}/${_OSRELEASE} 198 _INST_DIRS+= /stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules 199 KMODULEDIR= /stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules/${KMOD} 200 .endif 201 .endif 202 203 _INST_DIRS+= ${KMODULEDIR} 204 _PROG:= ${DESTDIR}${KMODULEDIR}/${PROG} # installed path 205 206 .if defined(PROGDEBUG) 207 .for i in ${_INST_DIRS} 208 _DEBUG_INST_DIRS += ${DEBUGDIR}${i} 209 .endfor 210 _INST_DIRS += ${_DEBUG_INST_DIRS} 211 _PROGDEBUG:= ${DESTDIR}${DEBUGDIR}${KMODULEDIR}/${PROG}.debug 212 .endif 213 214 .for _P P in ${_PROG} ${PROG} ${_PROGDEBUG} ${PROGDEBUG} 215 .if ${MKUPDATE} == "no" 216 ${_P}! ${P} # install rule 217 .if !defined(BUILD) && !make(all) && !make(${P}) 218 ${_P}! .MADE # no build at install 219 .endif 220 .else 221 ${_P}: ${P} # install rule 222 .if !defined(BUILD) && !make(all) && !make(${P}) 223 ${_P}: .MADE # no build at install 224 .endif 225 .endif 226 ${_MKTARGET_INSTALL} 227 dirs=${_INST_DIRS:Q}; \ 228 for d in $$dirs; do \ 229 ${INSTALL_DIR} ${DESTDIR}$$d; \ 230 done 231 ${INSTALL_FILE} -o ${KMODULEOWN} -g ${KMODULEGRP} -m ${KMODULEMODE} \ 232 ${.ALLSRC} ${.TARGET} 233 234 kmodinstall:: ${_P} 235 .PHONY: kmodinstall 236 .PRECIOUS: ${_P} # keep if install fails 237 .endfor 238 239 .undef _PPROG 240 .undef _PPROGDEBUG 241 .endif # !target(kmodinstall) 242 243 ##### Clean rules 244 CLEANFILES+= a.out [Ee]rrs mklog core *.core ${PROG} ${OBJS} ${LOBJS} 245 CLEANFILES+= ${PROGDEBUG} 246 CLEANFILES+= ${PROG}.map 247 .if ${MKLDSCRIPT} == "yes" 248 CLEANFILES+= kldscript 249 .endif 250 251 ##### Custom rules 252 lint: ${LOBJS} 253 .if defined(LOBJS) && !empty(LOBJS) 254 ${LINT} ${LINTFLAGS} ${LDFLAGS:C/-L[ ]*/-L/Wg:M-L*} ${LOBJS} ${LDADD} 255 .endif 256 257 ##### Pull in related .mk logic 258 LINKSOWN?= ${KMODULEOWN} 259 LINKSGRP?= ${KMODULEGRP} 260 LINKSMODE?= ${KMODULEMODE} 261 .include <bsd.man.mk> 262 .include <bsd.links.mk> 263 .include <bsd.dep.mk> 264 .include <bsd.clean.mk> 265 266 .-include "$S/arch/${MACHINE_CPU}/include/Makefile.inc" 267 .-include "$S/arch/${MACHINE}/include/Makefile.inc" 268
Indexes created Sun Oct 26 17:10:13 GMT 2025