bsd.kmodule.mk revision 1.37.2.1
1 # $NetBSD: bsd.kmodule.mk,v 1.37.2.1 2014/08/20 00:02:38 tls 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 .include <bsd.sys.mk> 9 10 ##### Basic targets 11 realinstall: kmodinstall 12 13 KERN= $S/kern 14 15 CFLAGS+= -ffreestanding ${COPTS} 16 CPPFLAGS+= -nostdinc -I. -I${.CURDIR} -isystem $S -isystem $S/arch 17 CPPFLAGS+= -isystem ${S}/../common/include 18 CPPFLAGS+= -D_KERNEL -D_LKM -D_MODULE -DSYSCTL_INCLUDE_DESCR 19 20 # XXX until the kernel is fixed again... 21 CFLAGS+= -fno-strict-aliasing -Wno-pointer-sign 22 23 # XXX This is a workaround for platforms that have relative relocations 24 # that, when relocated by the module loader, result in addresses that 25 # overflow the size of the relocation (e.g. R_PPC_REL24 in powerpc). 26 # The real solution to this involves generating trampolines for those 27 # relocations inside the loader and removing this workaround, as the 28 # resulting code would be much faster. 29 .if ${MACHINE_CPU} == "arm" 30 CFLAGS+= -fno-common -fno-unwind-tables 31 .elif ${MACHINE_CPU} == "hppa" 32 CFLAGS+= -mlong-calls 33 .elif ${MACHINE_CPU} == "powerpc" 34 CFLAGS+= ${${ACTIVE_CC} == "gcc":? -mlongcall :} 35 .elif ${MACHINE_CPU} == "vax" 36 CFLAGS+= -fno-pic 37 .endif 38 39 .if ${MACHINE_CPU} == "sparc64" 40 # force same memory model as rest of the kernel 41 CFLAGS+= ${${ACTIVE_CC} == "gcc":? -mcmodel=medlow :} 42 CFLAGS+= ${${ACTIVE_CC} == "clang":? -mcmodel=small :} 43 .endif 44 45 # evbppc needs some special help 46 .if ${MACHINE} == "evbppc" 47 48 . ifndef PPC_INTR_IMPL 49 PPC_INTR_IMPL=\"powerpc/intr.h\" 50 . endif 51 . ifndef PPC_PCI_MACHDEP_IMPL 52 PPC_PCI_MACHDEP_IMPL=\"powerpc/pci_machdep.h\" 53 . endif 54 CPPFLAGS+= -DPPC_INTR_IMPL=${PPC_INTR_IMPL} 55 CPPFLAGS+= -DPPC_PCI_MACHDEP_IMPL=${DPPC_PCI_MACHDEP_IMPL} 56 57 . ifdef PPC_IBM4XX 58 CPPFLAGS+= -DPPC_IBM4XX 59 . elifdef PPC_BOOKE 60 CPPFLAGS+= -DPPC_BOOKE 61 . else 62 CPPFLAGS+= -DPPC_OEA 63 . endif 64 65 .endif 66 67 68 _YKMSRCS= ${SRCS:M*.[ly]:C/\..$/.c/} ${YHEADER:D${SRCS:M*.y:.y=.h}} 69 DPSRCS+= ${_YKMSRCS} 70 CLEANFILES+= ${_YKMSRCS} 71 72 .if exists($S/../sys/modules/xldscripts/kmodule) 73 KMODSCRIPT= $S/../sys/modules/xldscripts/kmodule 74 .else 75 KMODSCRIPT= ${DESTDIR}/usr/libdata/ldscripts/kmodule 76 .endif 77 78 PROG?= ${KMOD}.kmod 79 80 ##### Build rules 81 realall: ${PROG} 82 83 .if (defined(USE_COMBINE) && ${USE_COMBINE} != "no" && !commands(${_P}) \ 84 && !defined(NOCOMBINE.${_P}) && !defined(NOCOMBINE)) 85 .for f in ${SRCS:N*.h:N*.sh:N*.fth:C/\.[yl]$/.c/g} 86 .if (${CPPFLAGS.$f:D1} == "1" || ${CPUFLAGS.$f:D2} == "2" \ 87 || ${COPTS.$f:D3} == "3" || ${OBJCOPTS.$f:D4} == "4" \ 88 || ${CXXFLAGS.$f:D5} == "5") \ 89 || ("${f:M*.[cyl]}" == "" || commands(${f:R:S/$/.o/})) 90 XOBJS+= ${f:R:S/$/.o/} 91 .else 92 XSRCS+= ${f} 93 NODPSRCS+= ${f} 94 .endif 95 .endfor 96 97 .if !empty(XOBJS) 98 ${XOBJS}: ${DPSRCS} 99 .endif 100 101 ${PROG}: ${XOBJS} ${XSRCS} ${DPSRCS} ${DPADD} 102 ${_MKTARGET_LINK} 103 ${CC} ${LDFLAGS} -nostdlib -MD -combine -r -Wl,-T,${KMODSCRIPT},-d \ 104 -o ${.TARGET} ${CFLAGS} ${CPPFLAGS} ${XOBJS} \ 105 ${XSRCS:@.SRC.@${.ALLSRC:M*.c:M*${.SRC.}}@:O:u} && \ 106 echo '.-include "${KMOD}.d"' > .depend 107 108 .else 109 OBJS+= ${SRCS:N*.h:N*.sh:R:S/$/.o/g} 110 111 ${OBJS} ${LOBJS}: ${DPSRCS} 112 113 .if ${MACHINE_CPU} == "arm" 114 # The solution to limited branch space involves generating trampolines for 115 # those relocations while creating the module, as the resulting code will 116 # be much faster and simplifies the loader. 117 ARCHDIR= $S/modules/arch/${MACHINE_CPU} 118 ASM_H= $S/arch/${MACHINE_CPU}/include/asm.h 119 CLEANFILES+= tmp.o tmp.S ${KMOD}_tmp.o ${KMOD}_tramp.o ${KMOD}_tramp.S 120 ${KMOD}_tmp.o: ${OBJS} ${DPADD} 121 ${_MKTARGET_LINK} 122 ${LD} -r -o tmp.o ${OBJS} 123 ${LD} -r \ 124 `${OBJDUMP} --syms --reloc tmp.o | \ 125 ${TOOL_AWK} -f ${ARCHDIR}/kmodwrap.awk` \ 126 -o ${.TARGET} tmp.o 127 128 ${KMOD}_tramp.S: ${KMOD}_tmp.o ${ARCHDIR}/kmodtramp.awk ${ASM_H} 129 ${_MKTARGET_CREATE} 130 ${OBJDUMP} --syms --reloc ${KMOD}_tmp.o | \ 131 ${TOOL_AWK} -f ${ARCHDIR}/kmodtramp.awk \ 132 > tmp.S && \ 133 mv tmp.S ${.TARGET} 134 135 ${PROG}: ${KMOD}_tmp.o ${KMOD}_tramp.o 136 ${_MKTARGET_LINK} 137 .if exists(${ARCHDIR}/kmodhide.awk) 138 ${LD} -r -o tmp.o ${KMOD}_tmp.o ${KMOD}_tramp.o 139 ${OBJCOPY} \ 140 `${NM} tmp.o | ${TOOL_AWK} -f ${ARCHDIR}/kmodhide.awk` \ 141 tmp.o ${.TARGET} && \ 142 rm tmp.o 143 .else 144 ${LD} -r -o ${.TARGET} ${KMOD}_tmp.o ${KMOD}_tramp.o 145 .endif 146 .else 147 ${PROG}: ${OBJS} ${DPADD} 148 ${_MKTARGET_LINK} 149 ${CC} ${LDFLAGS} -nostdlib -r -Wl,-T,${KMODSCRIPT},-d \ 150 -o ${.TARGET} ${OBJS} 151 .endif 152 .endif 153 154 ##### Install rules 155 .if !target(kmodinstall) 156 .if !defined(KMODULEDIR) 157 _OSRELEASE!= ${HOST_SH} $S/conf/osrelease.sh -k 158 # Ensure these are recorded properly in METALOG on unprived installes: 159 KMODULEARCHDIR?= ${MACHINE} 160 _INST_DIRS= ${DESTDIR}/stand/${KMODULEARCHDIR} 161 _INST_DIRS+= ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE} 162 _INST_DIRS+= ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules 163 KMODULEDIR= ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules/${KMOD} 164 .endif 165 _PROG:= ${KMODULEDIR}/${PROG} # installed path 166 167 .if ${MKUPDATE} == "no" 168 ${_PROG}! ${PROG} # install rule 169 .if !defined(BUILD) && !make(all) && !make(${PROG}) 170 ${_PROG}! .MADE # no build at install 171 .endif 172 .else 173 ${_PROG}: ${PROG} # install rule 174 .if !defined(BUILD) && !make(all) && !make(${PROG}) 175 ${_PROG}: .MADE # no build at install 176 .endif 177 .endif 178 ${_MKTARGET_INSTALL} 179 dirs=${_INST_DIRS:Q}; \ 180 for d in $$dirs; do \ 181 ${INSTALL_DIR} $$d; \ 182 done 183 ${INSTALL_DIR} ${KMODULEDIR} 184 ${INSTALL_FILE} -o ${KMODULEOWN} -g ${KMODULEGRP} -m ${KMODULEMODE} \ 185 ${.ALLSRC} ${.TARGET} 186 187 kmodinstall:: ${_PROG} 188 .PHONY: kmodinstall 189 .PRECIOUS: ${_PROG} # keep if install fails 190 191 .undef _PROG 192 .endif # !target(kmodinstall) 193 194 ##### Clean rules 195 CLEANFILES+= a.out [Ee]rrs mklog core *.core ${PROG} ${OBJS} ${LOBJS} 196 197 ##### Custom rules 198 lint: ${LOBJS} 199 .if defined(LOBJS) && !empty(LOBJS) 200 ${LINT} ${LINTFLAGS} ${LDFLAGS:C/-L[ ]*/-L/Wg:M-L*} ${LOBJS} ${LDADD} 201 .endif 202 203 ##### Pull in related .mk logic 204 LINKSOWN?= ${KMODULEOWN} 205 LINKSGRP?= ${KMODULEGRP} 206 LINKSMODE?= ${KMODULEMODE} 207 .include <bsd.man.mk> 208 .include <bsd.links.mk> 209 .include <bsd.dep.mk> 210 .include <bsd.clean.mk> 211 212 .-include "$S/arch/${MACHINE_CPU}/include/Makefile.inc" 213 .-include "$S/arch/${MACHINE}/include/Makefile.inc" 214
Indexes created Sun Oct 26 17:10:13 GMT 2025