bsd.kmodule.mk revision 1.62
1 # $NetBSD: bsd.kmodule.mk,v 1.62 2019/07/05 08:28:16 hannken 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*) 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} == "arm" 46 CFLAGS+= -fno-common -fno-unwind-tables 47 .elif ${MACHINE_CPU} == "hppa" 48 CFLAGS+= -mlong-calls 49 .elif ${MACHINE_CPU} == "powerpc" 50 CFLAGS+= ${${ACTIVE_CC} == "gcc":? -mlongcall :} 51 .elif ${MACHINE_CPU} == "vax" 52 CFLAGS+= -fno-pic 53 .elif ${MACHINE_CPU} == "riscv" 54 CFLAGS+= -fPIC -Wa,-fno-pic 55 .elif ${MACHINE_ARCH} == "mips64eb" && !defined(BSD_MK_COMPAT_FILE) 56 CFLAGS+= -mabi=64 57 LDFLAGS+= -Wl,-m,elf64btsmip 58 .elif ${MACHINE_ARCH} == "mips64el" && !defined(BSD_MK_COMPAT_FILE) 59 CFLAGS+= -mabi=64 60 LDFLAGS+= -Wl,-m,elf64ltsmip 61 .endif 62 63 .if ${MACHINE_CPU} == "sparc64" 64 # force same memory model as rest of the kernel 65 CFLAGS+= ${${ACTIVE_CC} == "gcc":? -mcmodel=medlow :} 66 CFLAGS+= ${${ACTIVE_CC} == "clang":? -mcmodel=small :} 67 .endif 68 69 # evbppc needs some special help 70 .if ${MACHINE} == "evbppc" 71 72 . ifndef PPC_INTR_IMPL 73 PPC_INTR_IMPL=\"powerpc/intr.h\" 74 . endif 75 . ifndef PPC_PCI_MACHDEP_IMPL 76 PPC_PCI_MACHDEP_IMPL=\"powerpc/pci_machdep.h\" 77 . endif 78 CPPFLAGS+= -DPPC_INTR_IMPL=${PPC_INTR_IMPL} 79 CPPFLAGS+= -DPPC_PCI_MACHDEP_IMPL=${DPPC_PCI_MACHDEP_IMPL} 80 81 . ifdef PPC_IBM4XX 82 CPPFLAGS+= -DPPC_IBM4XX 83 . elifdef PPC_BOOKE 84 CPPFLAGS+= -DPPC_BOOKE 85 . else 86 CPPFLAGS+= -DPPC_OEA 87 . endif 88 89 .endif 90 91 92 _YKMSRCS= ${SRCS:M*.[ly]:C/\..$/.c/} ${YHEADER:D${SRCS:M*.y:.y=.h}} 93 DPSRCS+= ${_YKMSRCS} 94 CLEANFILES+= ${_YKMSRCS} 95 96 .if exists($S/../sys/modules/xldscripts/kmodule) 97 KMODSCRIPTSRC= $S/../sys/modules/xldscripts/kmodule 98 .else 99 KMODSCRIPTSRC= ${DESTDIR}/usr/libdata/ldscripts/kmodule 100 .endif 101 .if ${MKLDSCRIPT} == "yes" 102 KMODSCRIPT= kldscript 103 MKLDSCRIPTSH= 104 .else 105 KMODSCRIPT= ${KMODSCRIPTSRC} 106 .endif 107 108 PROG?= ${KMOD}.kmod 109 110 ##### Build rules 111 realall: ${PROG} 112 113 OBJS+= ${SRCS:N*.h:N*.sh:R:S/$/.o/g} 114 115 ${OBJS} ${LOBJS}: ${DPSRCS} 116 117 .if ${MKLDSCRIPT} == "yes" 118 ${KMODSCRIPT}: ${KMODSCRIPTSRC} ${OBJS} $S/conf/mkldscript.sh 119 @rm -f ${.TARGET} 120 @OBJDUMP=${OBJDUMP} ${HOST_SH} $S/conf/mkldscript.sh \ 121 -t ${KMODSCRIPTSRC} ${OBJS} > ${.TARGET} 122 .endif 123 124 .if ${MACHINE_CPU} == "arm" 125 # The solution to limited branch space involves generating trampolines for 126 # those relocations while creating the module, as the resulting code will 127 # be much faster and simplifies the loader. 128 ARCHDIR= $S/modules/arch/${MACHINE_CPU} 129 ASM_H= $S/arch/${MACHINE_CPU}/include/asm.h 130 CLEANFILES+= tmp.o tmp.S ${KMOD}_tmp.o ${KMOD}_tramp.o ${KMOD}_tramp.S 131 ${KMOD}_tmp.o: ${OBJS} ${DPADD} 132 ${_MKTARGET_LINK} 133 ${LD} -r -o tmp.o ${OBJS} 134 ${LD} -r \ 135 `${OBJDUMP} --syms --reloc tmp.o | \ 136 ${TOOL_AWK} -f ${ARCHDIR}/kmodwrap.awk` \ 137 -o ${.TARGET} tmp.o 138 139 ${KMOD}_tramp.S: ${KMOD}_tmp.o ${ARCHDIR}/kmodtramp.awk ${ASM_H} 140 ${_MKTARGET_CREATE} 141 ${OBJDUMP} --syms --reloc ${KMOD}_tmp.o | \ 142 ${TOOL_AWK} -f ${ARCHDIR}/kmodtramp.awk \ 143 > tmp.S && \ 144 ${MV} tmp.S ${.TARGET} 145 146 ${PROG}: ${KMOD}_tmp.o ${KMOD}_tramp.o 147 ${_MKTARGET_LINK} 148 .if exists(${ARCHDIR}/kmodhide.awk) 149 ${LD} -r -Map=${.TARGET}.map \ 150 -o tmp.o ${KMOD}_tmp.o ${KMOD}_tramp.o 151 ${OBJCOPY} \ 152 `${NM} tmp.o | ${TOOL_AWK} -f ${ARCHDIR}/kmodhide.awk` \ 153 tmp.o ${.TARGET} && \ 154 rm tmp.o 155 .else 156 ${LD} -r -Map=${.TARGET}.map \ 157 -o ${.TARGET} ${KMOD}_tmp.o ${KMOD}_tramp.o 158 .endif 159 .else 160 ${PROG}: ${OBJS} ${DPADD} ${KMODSCRIPT} 161 ${_MKTARGET_LINK} 162 ${CC} ${LDFLAGS} -nostdlib -r -Wl,-T,${KMODSCRIPT},-d \ 163 -Wl,-Map=${.TARGET}.map \ 164 -o ${.TARGET} ${OBJS} 165 .endif 166 .if defined(CTFMERGE) 167 ${CTFMERGE} ${CTFMFLAGS} -o ${.TARGET} ${OBJS} 168 .endif 169 170 ##### Install rules 171 .if !target(kmodinstall) 172 .if !defined(KMODULEDIR) 173 _OSRELEASE!= ${HOST_SH} $S/conf/osrelease.sh -k 174 # Ensure these are recorded properly in METALOG on unprived installes: 175 KMODULEARCHDIR?= ${MACHINE} 176 _INST_DIRS= ${DESTDIR}/stand/${KMODULEARCHDIR} 177 _INST_DIRS+= ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE} 178 _INST_DIRS+= ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules 179 KMODULEDIR= ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules/${KMOD} 180 .endif 181 _PROG:= ${KMODULEDIR}/${PROG} # installed path 182 183 .if ${MKUPDATE} == "no" 184 ${_PROG}! ${PROG} # install rule 185 .if !defined(BUILD) && !make(all) && !make(${PROG}) 186 ${_PROG}! .MADE # no build at install 187 .endif 188 .else 189 ${_PROG}: ${PROG} # install rule 190 .if !defined(BUILD) && !make(all) && !make(${PROG}) 191 ${_PROG}: .MADE # no build at install 192 .endif 193 .endif 194 ${_MKTARGET_INSTALL} 195 dirs=${_INST_DIRS:Q}; \ 196 for d in $$dirs; do \ 197 ${INSTALL_DIR} $$d; \ 198 done 199 ${INSTALL_DIR} ${KMODULEDIR} 200 ${INSTALL_FILE} -o ${KMODULEOWN} -g ${KMODULEGRP} -m ${KMODULEMODE} \ 201 ${.ALLSRC} ${.TARGET} 202 203 kmodinstall:: ${_PROG} 204 .PHONY: kmodinstall 205 .PRECIOUS: ${_PROG} # keep if install fails 206 207 .undef _PROG 208 .endif # !target(kmodinstall) 209 210 ##### Clean rules 211 CLEANFILES+= a.out [Ee]rrs mklog core *.core ${PROG} ${OBJS} ${LOBJS} 212 CLEANFILES+= ${PROG}.map 213 .if ${MKLDSCRIPT} == "yes" 214 CLEANFILES+= kldscript 215 .endif 216 217 ##### Custom rules 218 lint: ${LOBJS} 219 .if defined(LOBJS) && !empty(LOBJS) 220 ${LINT} ${LINTFLAGS} ${LDFLAGS:C/-L[ ]*/-L/Wg:M-L*} ${LOBJS} ${LDADD} 221 .endif 222 223 ##### Pull in related .mk logic 224 LINKSOWN?= ${KMODULEOWN} 225 LINKSGRP?= ${KMODULEGRP} 226 LINKSMODE?= ${KMODULEMODE} 227 .include <bsd.man.mk> 228 .include <bsd.links.mk> 229 .include <bsd.dep.mk> 230 .include <bsd.clean.mk> 231 232 .-include "$S/arch/${MACHINE_CPU}/include/Makefile.inc" 233 .-include "$S/arch/${MACHINE}/include/Makefile.inc" 234
Indexes created Mon Oct 27 02:09:54 GMT 2025