libexec/ld.elf_so/Makefile

   1 #       $NetBSD: Makefile,v 1.102 2011/01/16 02:36:05 matt Exp $
   2 #
   3 # NOTE: when changing ld.so, ensure that ldd still compiles.
   4 #
   5
   6 WARNS?=4
   7
   8 # This executable needs to be linked dynamically
   9 MINIXDYNAMIC=yes
  10
  11 # And the minix gcc currently references /libexec/ld-elf.so.1
  12 SYMLINKS+=      ${SHLINKINSTALLDIR}/${PROG} /libexec/ld-elf.so.1
  13
  14 # This needs to be before bsd.init.mk
  15 .if defined(BSD_MK_COMPAT_FILE)
  16 .include <${BSD_MK_COMPAT_FILE}>
  17 .endif
  18
  19 # We are not building this with PIE
  20 PIE_CFLAGS=
  21 PIE_LDFLAGS=
  22 .include <bsd.init.mk>                  # for MKPIC definition
  23 .include <bsd.shlib.mk>                 # for SHLINKINSTALLDIR definition
  24
  25 .if defined(LDELFSO_MACHINE_CPU) && !empty(LDELFSO_MACHINE_CPU) && \
  26     exists(${.CURDIR}/arch/${LDELFSO_MACHINE_CPU})
  27 ARCHSUBDIR=     ${LDELFSO_MACHINE_CPU}
  28 .else
  29 ARCHSUBDIR=     ${MACHINE_CPU}
  30 .endif
  31 M=              ${.CURDIR}/arch/${ARCHSUBDIR}
  32
  33 .if ((${MACHINE_ARCH} == "alpha") ||                                    \
  34      (${MACHINE_CPU} == "arm") ||                                       \
  35      (${MACHINE_ARCH} == "hppa") ||                                     \
  36      (${MACHINE_ARCH} == "i386") ||                                     \
  37      (${MACHINE_ARCH} == "m68k") ||                                     \
  38      (${MACHINE_CPU} == "mips") ||                                      \
  39      (${MACHINE_ARCH} == "powerpc") ||                                  \
  40      (${MACHINE_CPU} == "sh3") ||                                       \
  41      (${MACHINE_ARCH} == "sparc") ||                                    \
  42      (${MACHINE_ARCH} == "sparc64") ||                                  \
  43      (${MACHINE_ARCH} == "x86_64") ||                                   \
  44      (${MACHINE_ARCH} == "vax")) &&                                     \
  45     ${MKPIC} != "no"
  46
  47 .if ${CC} == "gcc"
  48 LDFLAGS+=       -shared -symbolic -nostartfiles
  49 .else
  50 LDFLAGS+=       -shared -Wl,-Bsymbolic -nostartfiles
  51 .endif
  52 LDFLAGS+=       -Wl,-static
  53 LDFLAGS+=       -Wl,--warn-shared-textrel
  54
  55 CFLAGS+=        -fvisibility=hidden
  56
  57 # Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
  58 # is first.
  59 .if exists($M/Makefile.inc)
  60 .include "$M/Makefile.inc"
  61 .endif
  62
  63 # Support compat ld.elf_so.
  64 .if defined(MLIBDIR)
  65 PROG=           ld.elf_so-${MLIBDIR}
  66 CPPFLAGS+=      -DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
  67 .else
  68 PROG=           ld.elf_so
  69 .endif
  70
  71 CLIBOBJ!=       cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
  72
  73 SRCS+=          rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
  74                 map_object.c load.c search.c headers.c paths.c expand.c
  75
  76 .if ${USE_FORT} == "yes"
  77 .PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
  78 SRCS+=          stack_protector.c
  79 .endif
  80
  81 .PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
  82 SRCS+=          exit.c
  83
  84 errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/include/sys/errno.h
  85         ${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \
  86         mv -f ${.TARGET}.tmp ${.TARGET}
  87
  88 xprintf.c: errlist_concat.h
  89
  90 CLEANFILES+=    errlist_concat.h
  91
  92 BINDIR=         ${SHLINKINSTALLDIR}
  93
  94 CPPFLAGS+=      -DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
  95 CPPFLAGS+=      -I${.CURDIR} -I.
  96 CPPFLAGS+=      -DRTLD_LOADER
  97 CPPFLAGS+=      -D_RTLD_SOURCE
  98 CPPFLAGS+=      -DCOMBRELOC
  99 #CPPFLAGS+=     -DDEBUG
 100 #CPPFLAGS+=     -DRTLD_DEBUG
 101 #CPPFLAGS+=     -DRTLD_DEBUG_RELOC
 102 DBG=            -g
 103 #DBG=           -O3 -fomit-frame-pointer
 104
 105 .if ${SHLIBDIR} != ${LIBDIR}
 106 CPPFLAGS+=      -DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
 107 .endif
 108
 109 # rtld.c and symbol.c use alloca, so disable SSP warnings.
 110 COPTS.rtld.c+=  -Wno-stack-protector
 111 COPTS.symbol.c+=-Wno-stack-protector
 112
 113 LDADD+=         -L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
 114 .if ${MKPICLIB} != "no"
 115 LDADD+=         -lc_pic
 116 .if ${MKPICINSTALL} != "no"
 117 DPADD+=         ${LIBC_PIC}
 118 .endif
 119 DPADD+=         ${CLIBOBJ}/libc_pic.a
 120 .else
 121 LDADD+=         -lc
 122 DPADD+=         ${CLIBOBJ}/libc.a
 123 .endif
 124
 125 STRIPFLAG=
 126
 127 .PATH: $M
 128
 129 ${PROG}: ${OBJS} ${DPADD}
 130         ${_MKMSG_LINK} ${PROG}
 131         ${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
 132
 133 .if ${SHLINKINSTALLDIR} != "/usr/libexec"
 134 SYMLINKS+=      ${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
 135 .endif
 136
 137 .include <bsd.prog.mk>
 138 .else
 139
 140 MAN=            ld.elf_so.1
 141
 142 .include <bsd.man.mk>
 143 .endif