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