bsd.kmodule.mk revision 1.74
1 # $NetBSD: bsd.kmodule.mk,v 1.74 2021/03/07 07:37:35 rin 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=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 CFLAGS+= ${${ACTIVE_CC} == "gcc" && ${HAVE_GCC:U0} >= 9:? -mno-pltseq :} 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 . elif ${MACHINE_ARCH} == "powerpc64" 89 CPPFLAGS+= -DPPC_OEA64 90 . else 91 CPPFLAGS+= -DPPC_OEA 92 . endif 93 94 .endif 95 96 97 _YKMSRCS= ${SRCS:M*.[ly]:C/\..$/.c/} ${YHEADER:D${SRCS:M*.y:.y=.h}} 98 DPSRCS+= ${_YKMSRCS} 99 CLEANFILES+= ${_YKMSRCS} 100 101 .if exists($S/../sys/modules/xldscripts/kmodule) 102 KMODSCRIPTSRC= $S/../sys/modules/xldscripts/kmodule 103 .else 104 KMODSCRIPTSRC= ${DESTDIR}/usr/libdata/ldscripts/kmodule 105 .endif 106 .if ${MKLDSCRIPT} == "yes" 107 KMODSCRIPT= kldscript 108 MKLDSCRIPTSH= 109 .else 110 KMODSCRIPT= ${KMODSCRIPTSRC} 111 .endif 112 113 PROG?= ${KMOD}.kmod 114 .if ${MKDEBUG:Uno} != "no" && !defined(NODEBUG) && !commands(${PROG}) && \ 115 empty(SRCS:M*.sh) 116 PROGDEBUG:= ${PROG}.debug 117 .endif 118 119 ##### Build rules 120 realall: ${PROG} ${PROGDEBUG} 121 122 OBJS+= ${SRCS:N*.h:N*.sh:R:S/$/.o/g} 123 124 ${OBJS} ${LOBJS}: ${DPSRCS} 125 126 .if ${MKLDSCRIPT} == "yes" 127 ${KMODSCRIPT}: ${KMODSCRIPTSRC} ${OBJS} $S/conf/mkldscript.sh 128 @rm -f ${.TARGET} 129 @OBJDUMP=${OBJDUMP} ${HOST_SH} $S/conf/mkldscript.sh \ 130 -t ${KMODSCRIPTSRC} ${OBJS} > ${.TARGET} 131 .endif 132 133 .if ${MACHINE_CPU} == "arm" 134 # The solution to limited branch space involves generating trampolines for 135 # those relocations while creating the module, as the resulting code will 136 # be much faster and simplifies the loader. 137 ARCHDIR= $S/modules/arch/${MACHINE_CPU} 138 ASM_H= $S/arch/${MACHINE_CPU}/include/asm.h 139 CLEANFILES+= tmp.o tmp.S ${KMOD}_tmp.o ${KMOD}_tramp.o ${KMOD}_tramp.S 140 ${KMOD}_tmp.o: ${OBJS} ${DPADD} 141 ${_MKTARGET_LINK} 142 ${LD} -r -o tmp.o ${OBJS} 143 ${LD} -r \ 144 `${OBJDUMP} --syms --reloc tmp.o | \ 145 ${TOOL_AWK} -f ${ARCHDIR}/kmodwrap.awk` \ 146 -o ${.TARGET} tmp.o 147 148 ${KMOD}_tramp.S: ${KMOD}_tmp.o ${ARCHDIR}/kmodtramp.awk ${ASM_H} 149 ${_MKTARGET_CREATE} 150 ${OBJDUMP} --syms --reloc ${KMOD}_tmp.o | \ 151 ${TOOL_AWK} -f ${ARCHDIR}/kmodtramp.awk \ 152 > tmp.S && \ 153 ${MV} tmp.S ${.TARGET} 154 155 ${PROG}: ${KMOD}_tmp.o ${KMOD}_tramp.o 156 ${_MKTARGET_LINK} 157 .if exists(${ARCHDIR}/kmodhide.awk) 158 ${LD} -r -Map=${.TARGET}.map \ 159 -o tmp.o ${KMOD}_tmp.o ${KMOD}_tramp.o 160 ${OBJCOPY} \ 161 `${NM} tmp.o | ${TOOL_AWK} -f ${ARCHDIR}/kmodhide.awk` \ 162 tmp.o ${.TARGET} && \ 163 rm tmp.o 164 .else 165 ${LD} -r -Map=${.TARGET}.map \ 166 -o ${.TARGET} ${KMOD}_tmp.o ${KMOD}_tramp.o 167 .endif 168 .else 169 ${PROG}: ${OBJS} ${DPADD} ${KMODSCRIPT} 170 ${_MKTARGET_LINK} 171 ${CC} ${LDFLAGS} -nostdlib -r -Wl,-T,${KMODSCRIPT},-d \ 172 -Wl,-Map=${.TARGET}.map \ 173 -o ${.TARGET} ${OBJS} 174 .endif 175 .if defined(CTFMERGE) 176 ${CTFMERGE} ${CTFMFLAGS} -o ${.TARGET} ${OBJS} 177 .endif 178 179 .if defined(PROGDEBUG) 180 ${PROGDEBUG}: ${PROG} 181 ${_MKTARGET_CREATE} 182 ( ${OBJCOPY} --only-keep-debug ${PROG} ${PROGDEBUG} \ 183 && ${OBJCOPY} --strip-debug -p -R .gnu_debuglink \ 184 --add-gnu-debuglink=${PROGDEBUG} ${PROG} \ 185 ) || (rm -f ${PROGDEBUG}; false) 186 .endif 187 188 ##### Install rules 189 .if !target(kmodinstall) 190 .if !defined(KMODULEDIR) 191 .if ${KERNEL_DIR:Uno} == "yes" 192 _INST_DIRS= /netbsd 193 _INST_DIRS+= /netbsd/modules 194 KMODULEDIR= /netbsd/modules/${KMOD} 195 .else 196 # Ensure these are recorded properly in METALOG on unprived installes: 197 _OSRELEASE!= ${HOST_SH} $S/conf/osrelease.sh -k 198 KMODULEARCHDIR?= ${MACHINE} 199 _INST_DIRS= /stand/${KMODULEARCHDIR} 200 _INST_DIRS+= /stand/${KMODULEARCHDIR}/${_OSRELEASE} 201 _INST_DIRS+= /stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules 202 KMODULEDIR= /stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules/${KMOD} 203 .endif 204 .endif 205 206 _INST_DIRS+= ${KMODULEDIR} 207 _PROG:= ${DESTDIR}${KMODULEDIR}/${PROG} # installed path 208 209 .if defined(PROGDEBUG) 210 .for i in ${_INST_DIRS} 211 _DEBUG_INST_DIRS += ${DEBUGDIR}${i} 212 .endfor 213 _INST_DIRS += ${_DEBUG_INST_DIRS} 214 _PROGDEBUG:= ${DESTDIR}${DEBUGDIR}${KMODULEDIR}/${PROG}.debug 215 .endif 216 217 .for _P P in ${_PROG} ${PROG} ${_PROGDEBUG} ${PROGDEBUG} 218 .if ${MKUPDATE} == "no" 219 ${_P}! ${P} # install rule 220 .if !defined(BUILD) && !make(all) && !make(${P}) 221 ${_P}! .MADE # no build at install 222 .endif 223 .else 224 ${_P}: ${P} # install rule 225 .if !defined(BUILD) && !make(all) && !make(${P}) 226 ${_P}: .MADE # no build at install 227 .endif 228 .endif 229 ${_MKTARGET_INSTALL} 230 dirs=${_INST_DIRS:Q}; \ 231 for d in $$dirs; do \ 232 ${INSTALL_DIR} ${DESTDIR}$$d; \ 233 done 234 ${INSTALL_FILE} -o ${KMODULEOWN} -g ${KMODULEGRP} -m ${KMODULEMODE} \ 235 ${.ALLSRC} ${.TARGET} 236 237 kmodinstall:: ${_P} 238 .PHONY: kmodinstall 239 .PRECIOUS: ${_P} # keep if install fails 240 .endfor 241 242 .undef _PPROG 243 .undef _PPROGDEBUG 244 .endif # !target(kmodinstall) 245 246 ##### Clean rules 247 CLEANFILES+= a.out [Ee]rrs mklog core *.core ${PROG} ${OBJS} ${LOBJS} 248 CLEANFILES+= ${PROGDEBUG} 249 CLEANFILES+= ${PROG}.map 250 .if ${MKLDSCRIPT} == "yes" 251 CLEANFILES+= kldscript 252 .endif 253 254 ##### Custom rules 255 lint: ${LOBJS} 256 .if defined(LOBJS) && !empty(LOBJS) 257 ${LINT} ${LINTFLAGS} ${LDFLAGS:C/-L[ ]*/-L/Wg:M-L*} ${LOBJS} ${LDADD} 258 .endif 259 260 ##### Pull in related .mk logic 261 LINKSOWN?= ${KMODULEOWN} 262 LINKSGRP?= ${KMODULEGRP} 263 LINKSMODE?= ${KMODULEMODE} 264 .include <bsd.man.mk> 265 .include <bsd.links.mk> 266 .include <bsd.dep.mk> 267 .include <bsd.clean.mk> 268 269 .-include "$S/arch/${MACHINE_CPU}/include/Makefile.inc" 270 .-include "$S/arch/${MACHINE}/include/Makefile.inc" 271
Indexes created Mon Oct 27 04:09:48 GMT 2025