bsd.kmodule.mk revision 1.45
1 # $NetBSD: bsd.kmodule.mk,v 1.45 2014/09/19 17:45:42 matt 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 .elif ${MACHINE_CPU} == "riscv" 38 CFLAGS+= -fPIC -Wa,-fno-pic 39 .endif 40 41 .if ${MACHINE_CPU} == "sparc64" 42 # force same memory model as rest of the kernel 43 CFLAGS+= ${${ACTIVE_CC} == "gcc":? -mcmodel=medlow :} 44 CFLAGS+= ${${ACTIVE_CC} == "clang":? -mcmodel=small :} 45 .endif 46 47 # evbppc needs some special help 48 .if ${MACHINE} == "evbppc" 49 50 . ifndef PPC_INTR_IMPL 51 PPC_INTR_IMPL=\"powerpc/intr.h\" 52 . endif 53 . ifndef PPC_PCI_MACHDEP_IMPL 54 PPC_PCI_MACHDEP_IMPL=\"powerpc/pci_machdep.h\" 55 . endif 56 CPPFLAGS+= -DPPC_INTR_IMPL=${PPC_INTR_IMPL} 57 CPPFLAGS+= -DPPC_PCI_MACHDEP_IMPL=${DPPC_PCI_MACHDEP_IMPL} 58 59 . ifdef PPC_IBM4XX 60 CPPFLAGS+= -DPPC_IBM4XX 61 . elifdef PPC_BOOKE 62 CPPFLAGS+= -DPPC_BOOKE 63 . else 64 CPPFLAGS+= -DPPC_OEA 65 . endif 66 67 .endif 68 69 70 _YKMSRCS= ${SRCS:M*.[ly]:C/\..$/.c/} ${YHEADER:D${SRCS:M*.y:.y=.h}} 71 DPSRCS+= ${_YKMSRCS} 72 CLEANFILES+= ${_YKMSRCS} 73 74 .if exists($S/../sys/modules/xldscripts/kmodule) 75 KMODSCRIPT= $S/../sys/modules/xldscripts/kmodule 76 .else 77 KMODSCRIPT= ${DESTDIR}/usr/libdata/ldscripts/kmodule 78 .endif 79 80 PROG?= ${KMOD}.kmod 81 82 ##### Build rules 83 realall: ${PROG} 84 85 .if (defined(USE_COMBINE) && ${USE_COMBINE} != "no" && !commands(${_P}) \ 86 && !defined(NOCOMBINE.${_P}) && !defined(NOCOMBINE)) 87 .for f in ${SRCS:N*.h:N*.sh:N*.fth:C/\.[yl]$/.c/g} 88 .if (${CPPFLAGS.$f:D1} == "1" || ${CPUFLAGS.$f:D2} == "2" \ 89 || ${COPTS.$f:D3} == "3" || ${OBJCOPTS.$f:D4} == "4" \ 90 || ${CXXFLAGS.$f:D5} == "5") \ 91 || ("${f:M*.[cyl]}" == "" || commands(${f:R:S/$/.o/})) 92 XOBJS+= ${f:R:S/$/.o/} 93 .else 94 XSRCS+= ${f} 95 NODPSRCS+= ${f} 96 .endif 97 .endfor 98 99 .if !empty(XOBJS) 100 ${XOBJS}: ${DPSRCS} 101 .endif 102 103 ${PROG}: ${XOBJS} ${XSRCS} ${DPSRCS} ${DPADD} 104 ${_MKTARGET_LINK} 105 ${CC} ${LDFLAGS} -nostdlib -MD -combine -r -Wl,-T,${KMODSCRIPT},-d \ 106 -o ${.TARGET} ${CFLAGS} ${CPPFLAGS} ${XOBJS} \ 107 ${XSRCS:@.SRC.@${.ALLSRC:M*.c:M*${.SRC.}}@:O:u} && \ 108 echo '.-include "${KMOD}.d"' > .depend 109 110 .else 111 OBJS+= ${SRCS:N*.h:N*.sh:R:S/$/.o/g} 112 113 ${OBJS} ${LOBJS}: ${DPSRCS} 114 115 .if ${MACHINE_CPU} == "arm" 116 # The solution to limited branch space involves generating trampolines for 117 # those relocations while creating the module, as the resulting code will 118 # be much faster and simplifies the loader. 119 ARCHDIR= $S/modules/arch/${MACHINE_CPU} 120 ASM_H= $S/arch/${MACHINE_CPU}/include/asm.h 121 CLEANFILES+= tmp.o tmp.S ${KMOD}_tmp.o ${KMOD}_tramp.o ${KMOD}_tramp.S 122 ${KMOD}_tmp.o: ${OBJS} ${DPADD} 123 ${_MKTARGET_LINK} 124 ${LD} -r -o tmp.o ${OBJS} 125 ${LD} -r \ 126 `${OBJDUMP} --syms --reloc tmp.o | \ 127 ${TOOL_AWK} -f ${ARCHDIR}/kmodwrap.awk` \ 128 -o ${.TARGET} tmp.o 129 130 ${KMOD}_tramp.S: ${KMOD}_tmp.o ${ARCHDIR}/kmodtramp.awk ${ASM_H} 131 ${_MKTARGET_CREATE} 132 ${OBJDUMP} --syms --reloc ${KMOD}_tmp.o | \ 133 ${TOOL_AWK} -f ${ARCHDIR}/kmodtramp.awk \ 134 > tmp.S && \ 135 mv tmp.S ${.TARGET} 136 137 ${PROG}: ${KMOD}_tmp.o ${KMOD}_tramp.o 138 ${_MKTARGET_LINK} 139 .if exists(${ARCHDIR}/kmodhide.awk) 140 ${LD} -r -o tmp.o ${KMOD}_tmp.o ${KMOD}_tramp.o 141 ${OBJCOPY} \ 142 `${NM} tmp.o | ${TOOL_AWK} -f ${ARCHDIR}/kmodhide.awk` \ 143 tmp.o ${.TARGET} && \ 144 rm tmp.o 145 .else 146 ${LD} -r -o ${.TARGET} ${KMOD}_tmp.o ${KMOD}_tramp.o 147 .endif 148 .else 149 ${PROG}: ${OBJS} ${DPADD} 150 ${_MKTARGET_LINK} 151 ${CC} ${LDFLAGS} -nostdlib -r -Wl,-T,${KMODSCRIPT},-d \ 152 -o ${.TARGET} ${OBJS} 153 .endif 154 .endif 155 156 ##### Install rules 157 .if !target(kmodinstall) 158 .if !defined(KMODULEDIR) 159 _OSRELEASE!= ${HOST_SH} $S/conf/osrelease.sh -k 160 # Ensure these are recorded properly in METALOG on unprived installes: 161 KMODULEARCHDIR?= ${MACHINE} 162 _INST_DIRS= ${DESTDIR}/stand/${KMODULEARCHDIR} 163 _INST_DIRS+= ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE} 164 _INST_DIRS+= ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules 165 KMODULEDIR= ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules/${KMOD} 166 .endif 167 _PROG:= ${KMODULEDIR}/${PROG} # installed path 168 169 .if ${MKUPDATE} == "no" 170 ${_PROG}! ${PROG} # install rule 171 .if !defined(BUILD) && !make(all) && !make(${PROG}) 172 ${_PROG}! .MADE # no build at install 173 .endif 174 .else 175 ${_PROG}: ${PROG} # install rule 176 .if !defined(BUILD) && !make(all) && !make(${PROG}) 177 ${_PROG}: .MADE # no build at install 178 .endif 179 .endif 180 ${_MKTARGET_INSTALL} 181 dirs=${_INST_DIRS:Q}; \ 182 for d in $$dirs; do \ 183 ${INSTALL_DIR} $$d; \ 184 done 185 ${INSTALL_DIR} ${KMODULEDIR} 186 ${INSTALL_FILE} -o ${KMODULEOWN} -g ${KMODULEGRP} -m ${KMODULEMODE} \ 187 ${.ALLSRC} ${.TARGET} 188 189 kmodinstall:: ${_PROG} 190 .PHONY: kmodinstall 191 .PRECIOUS: ${_PROG} # keep if install fails 192 193 .undef _PROG 194 .endif # !target(kmodinstall) 195 196 ##### Clean rules 197 CLEANFILES+= a.out [Ee]rrs mklog core *.core ${PROG} ${OBJS} ${LOBJS} 198 199 ##### Custom rules 200 lint: ${LOBJS} 201 .if defined(LOBJS) && !empty(LOBJS) 202 ${LINT} ${LINTFLAGS} ${LDFLAGS:C/-L[ ]*/-L/Wg:M-L*} ${LOBJS} ${LDADD} 203 .endif 204 205 ##### Pull in related .mk logic 206 LINKSOWN?= ${KMODULEOWN} 207 LINKSGRP?= ${KMODULEGRP} 208 LINKSMODE?= ${KMODULEMODE} 209 .include <bsd.man.mk> 210 .include <bsd.links.mk> 211 .include <bsd.dep.mk> 212 .include <bsd.clean.mk> 213 214 .-include "$S/arch/${MACHINE_CPU}/include/Makefile.inc" 215 .-include "$S/arch/${MACHINE}/include/Makefile.inc" 216
Indexes created Sun Oct 26 17:10:13 GMT 2025