share/mk/bsd.kmodule.mk

   1 #       $NetBSD: bsd.kmodule.mk,v 1.37 2012/08/10 16:34:23 joerg 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+=        -mlong-calls
  31 .elif ${MACHINE_CPU} == "powerpc"
  32 CFLAGS+=        -mlongcall
  33 .elif ${MACHINE_CPU} == "vax"
  34 CFLAGS+=        -fno-pic
  35 .endif
  36
  37 # evbppc needs some special help
  38 .if ${MACHINE} == "evbppc"
  39
  40 . ifndef PPC_INTR_IMPL
  41 PPC_INTR_IMPL=\"powerpc/intr.h\"
  42 . endif
  43 . ifndef PPC_PCI_MACHDEP_IMPL
  44 PPC_PCI_MACHDEP_IMPL=\"powerpc/pci_machdep.h\"
  45 . endif
  46 CPPFLAGS+=      -DPPC_INTR_IMPL=${PPC_INTR_IMPL}
  47 CPPFLAGS+=      -DPPC_PCI_MACHDEP_IMPL=${DPPC_PCI_MACHDEP_IMPL}
  48
  49 . ifdef PPC_IBM4XX
  50 CPPFLAGS+=      -DPPC_IBM4XX
  51 . elifdef PPC_BOOKE
  52 CPPFLAGS+=      -DPPC_BOOKE
  53 . else
  54 CPPFLAGS+=      -DPPC_OEA
  55 . endif
  56
  57 .endif
  58
  59
  60 _YKMSRCS=       ${SRCS:M*.[ly]:C/\..$/.c/} ${YHEADER:D${SRCS:M*.y:.y=.h}}
  61 DPSRCS+=        ${_YKMSRCS}
  62 CLEANFILES+=    ${_YKMSRCS}
  63
  64 .if exists($S/../sys/modules/xldscripts/kmodule)
  65 KMODSCRIPT=     $S/../sys/modules/xldscripts/kmodule
  66 .else
  67 KMODSCRIPT=     ${DESTDIR}/usr/libdata/ldscripts/kmodule
  68 .endif
  69
  70 PROG?=          ${KMOD}.kmod
  71
  72 ##### Build rules
  73 realall:        ${PROG}
  74
  75 .if (defined(USE_COMBINE) && ${USE_COMBINE} != "no" && !commands(${_P}) \
  76    && !defined(NOCOMBINE.${_P}) && !defined(NOCOMBINE))
  77 .for f in ${SRCS:N*.h:N*.sh:N*.fth:C/\.[yl]$/.c/g}
  78 .if (${CPPFLAGS.$f:D1} == "1" || ${CPUFLAGS.$f:D2} == "2" \
  79      || ${COPTS.$f:D3} == "3" || ${OBJCOPTS.$f:D4} == "4" \
  80      || ${CXXFLAGS.$f:D5} == "5") \
  81     || ("${f:M*.[cyl]}" == "" || commands(${f:R:S/$/.o/}))
  82 XOBJS+=         ${f:R:S/$/.o/}
  83 .else
  84 XSRCS+=         ${f}
  85 NODPSRCS+=      ${f}
  86 .endif
  87 .endfor
  88
  89 .if !empty(XOBJS)
  90 ${XOBJS}:       ${DPSRCS}
  91 .endif
  92
  93 ${PROG}: ${XOBJS} ${XSRCS} ${DPSRCS} ${DPADD}
  94         ${_MKTARGET_LINK}
  95         ${CC} ${LDFLAGS} -nostdlib -MD -combine -r -Wl,-T,${KMODSCRIPT},-d \
  96                 -o ${.TARGET} ${CFLAGS} ${CPPFLAGS} ${XOBJS} \
  97                 ${XSRCS:@.SRC.@${.ALLSRC:M*.c:M*${.SRC.}}@:O:u} && \
  98         echo '.-include "${KMOD}.d"' > .depend
  99
 100 .else
 101 OBJS+=          ${SRCS:N*.h:N*.sh:R:S/$/.o/g}
 102
 103 ${OBJS} ${LOBJS}: ${DPSRCS}
 104
 105 ${PROG}: ${OBJS} ${DPADD}
 106         ${_MKTARGET_LINK}
 107         ${CC} ${LDFLAGS} -nostdlib -r -Wl,-T,${KMODSCRIPT},-d \
 108                 -o ${.TARGET} ${OBJS}
 109 .endif
 110
 111 ##### Install rules
 112 .if !target(kmodinstall)
 113 .if !defined(KMODULEDIR)
 114 _OSRELEASE!=    ${HOST_SH} $S/conf/osrelease.sh -k
 115 # Ensure these are recorded properly in METALOG on unprived installes:
 116 KMODULEARCHDIR?= ${MACHINE}
 117 _INST_DIRS=     ${DESTDIR}/stand/${KMODULEARCHDIR}
 118 _INST_DIRS+=    ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE}
 119 _INST_DIRS+=    ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules
 120 KMODULEDIR=     ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules/${KMOD}
 121 .endif
 122 _PROG:=         ${KMODULEDIR}/${PROG} # installed path
 123
 124 .if ${MKUPDATE} == "no"
 125 ${_PROG}! ${PROG}                                       # install rule
 126 .if !defined(BUILD) && !make(all) && !make(${PROG})
 127 ${_PROG}!       .MADE                                   # no build at install
 128 .endif
 129 .else
 130 ${_PROG}: ${PROG}                                       # install rule
 131 .if !defined(BUILD) && !make(all) && !make(${PROG})
 132 ${_PROG}:       .MADE                                   # no build at install
 133 .endif
 134 .endif
 135         ${_MKTARGET_INSTALL}
 136         dirs=${_INST_DIRS:Q}; \
 137         for d in $$dirs; do \
 138                 ${INSTALL_DIR} $$d; \
 139         done
 140         ${INSTALL_DIR} ${KMODULEDIR}
 141         ${INSTALL_FILE} -o ${KMODULEOWN} -g ${KMODULEGRP} -m ${KMODULEMODE} \
 142                 ${.ALLSRC} ${.TARGET}
 143
 144 kmodinstall::   ${_PROG}
 145 .PHONY:         kmodinstall
 146 .PRECIOUS:      ${_PROG}                                # keep if install fails
 147
 148 .undef _PROG
 149 .endif # !target(kmodinstall)
 150
 151 ##### Clean rules
 152 CLEANFILES+= a.out [Ee]rrs mklog core *.core ${PROG} ${OBJS} ${LOBJS}
 153
 154 ##### Custom rules
 155 lint: ${LOBJS}
 156 .if defined(LOBJS) && !empty(LOBJS)
 157         ${LINT} ${LINTFLAGS} ${LDFLAGS:C/-L[  ]*/-L/Wg:M-L*} ${LOBJS} ${LDADD}
 158 .endif
 159
 160 ##### Pull in related .mk logic
 161 LINKSOWN?= ${KMODULEOWN}
 162 LINKSGRP?= ${KMODULEGRP}
 163 LINKSMODE?= ${KMODULEMODE}
 164 .include <bsd.man.mk>
 165 .include <bsd.links.mk>
 166 .include <bsd.dep.mk>
 167 .include <bsd.clean.mk>
 168
 169 .-include "$S/arch/${MACHINE_CPU}/include/Makefile.inc"
 170 .-include "$S/arch/${MACHINE}/include/Makefile.inc"