libexec/ld.elf_so/Makefile

   1 #       $NetBSD: Makefile,v 1.114 2012/08/23 21:21:15 joerg Exp $
   2 #
   3 # NOTE: when changing ld.so, ensure that ldd still compiles.
   4 #
   5
   6 WARNS?=4
   7
   8 # Minix Clang binaries references /libexec/ld.elf_so
   9 SYMLINKS+=      ${SHLINKINSTALLDIR}/${PROG} /libexec/ld.elf_so
  10 # And the minix gcc currently references /libexec/ld-elf.so.1
  11 SYMLINKS+=      ${SHLINKINSTALLDIR}/${PROG} /libexec/ld-elf.so.1
  12
  13 # This needs to be before bsd.init.mk
  14 .if defined(BSD_MK_COMPAT_FILE)
  15 .include <${BSD_MK_COMPAT_FILE}>
  16 .endif
  17
  18 # We are not building this with PIE
  19 PIE_CFLAGS=
  20 PIE_LDFLAGS=
  21 .include <bsd.init.mk>                  # for MKPIC definition
  22 .include <bsd.shlib.mk>                 # for SHLINKINSTALLDIR definition
  23
  24 .if defined(LDELFSO_MACHINE_CPU) && !empty(LDELFSO_MACHINE_CPU) && \
  25     exists(${.CURDIR}/arch/${LDELFSO_MACHINE_CPU})
  26 ARCHSUBDIR=     ${LDELFSO_MACHINE_CPU}
  27 .else
  28 ARCHSUBDIR=     ${MACHINE_CPU}
  29 .endif
  30 M=              ${.CURDIR}/arch/${ARCHSUBDIR}
  31
  32 .if ((${MACHINE_ARCH} == "alpha") ||                                    \
  33      (${MACHINE_CPU} == "arm") ||                                       \
  34      (${MACHINE_ARCH} == "hppa") ||                                     \
  35      (${MACHINE_ARCH} == "i386") ||                                     \
  36      (${MACHINE_ARCH} == "m68k") ||                                     \
  37      (${MACHINE_CPU} == "mips") ||                                      \
  38      (${MACHINE_ARCH} == "powerpc") ||                                  \
  39      (${MACHINE_CPU} == "sh3") ||                                       \
  40      (${MACHINE_ARCH} == "sparc") ||                                    \
  41      (${MACHINE_ARCH} == "sparc64") ||                                  \
  42      (${MACHINE_ARCH} == "x86_64") ||                                   \
  43      (${MACHINE_ARCH} == "vax")) &&                                     \
  44     ${MKPIC} != "no"
  45
  46 LDFLAGS+=       ${${ACTIVE_CC} == "clang":? -Wl,-Bsymbolic : -symbolic} \
  47                 -shared -nostartfiles -nodefaultlibs
  48 LDFLAGS+=       -Wl,-static
  49 LDFLAGS+=       -Wl,--warn-shared-textrel
  50
  51 COPTS+=         -fvisibility=hidden
  52
  53 # Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
  54 # is first.
  55 .if exists($M/Makefile.inc)
  56 .include "$M/Makefile.inc"
  57 .endif
  58
  59 # Support compat ld.elf_so.
  60 .if defined(MLIBDIR)
  61 PROG=           ld.elf_so-${MLIBDIR}
  62 CPPFLAGS+=      -DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
  63 .else
  64 PROG=           ld.elf_so
  65 .endif
  66
  67 CLIBOBJ!=       cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
  68
  69 SRCS+=          rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
  70                 map_object.c load.c search.c headers.c paths.c expand.c \
  71                 tls.c symver.c diagassert.c
  72
  73 .if ${USE_FORT} == "yes"
  74 .PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
  75 SRCS+=          stack_protector.c
  76 .endif
  77
  78 .PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
  79 SRCS+=          exit.c
  80
  81 errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/sys/sys/errno.h
  82         ${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \
  83         mv -f ${.TARGET}.tmp ${.TARGET}
  84
  85 xprintf.c: errlist_concat.h
  86
  87 CLEANFILES+=    errlist_concat.h
  88
  89 BINDIR=         ${SHLINKINSTALLDIR}
  90
  91 CPPFLAGS+=      -DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
  92 CPPFLAGS+=      -I${.CURDIR} -I.
  93 CPPFLAGS+=      -DRTLD_LOADER
  94 CPPFLAGS+=      -D_RTLD_SOURCE
  95 CPPFLAGS+=      -DCOMBRELOC
  96 #CPPFLAGS+=     -DDEBUG
  97 #CPPFLAGS+=     -DRTLD_DEBUG
  98 #CPPFLAGS+=     -DRTLD_DEBUG_RELOC
  99 #DBG=           -g
 100 COPTS=          -O3 -fomit-frame-pointer
 101
 102 .if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "x86_64"
 103 COPTS+=         -mno-3dnow -mno-mmx -mno-sse -mno-sse2 -mno-sse3
 104 .endif
 105
 106
 107 .if ${SHLIBDIR} != ${LIBDIR}
 108 CPPFLAGS+=      -DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
 109 .endif
 110
 111 # rtld.c and symbol.c use alloca, so disable SSP warnings.
 112 COPTS.rtld.c+=  -Wno-stack-protector
 113 COPTS.symbol.c+=-Wno-stack-protector
 114
 115 LDADD+=         -L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
 116 .if ${MKPICLIB} != "no"
 117 LDADD+=         -lc_pic
 118 .if ${MKPICINSTALL} != "no"
 119 DPADD+=         ${LIBC_PIC}
 120 .endif
 121 DPADD+=         ${CLIBOBJ}/libc_pic.a
 122 .else
 123 LDADD+=         -lc
 124 DPADD+=         ${CLIBOBJ}/libc.a
 125 .endif
 126
 127 .if ${MACHINE_CPU} == "hppa" || ${MACHINE_CPU} == "sh3"
 128 # for $$divU, $$remU etc. (millicode)
 129 LDADD+=         -lgcc
 130 DPADD+=         ${LIBGCC}
 131 .endif
 132
 133 STRIPFLAG=
 134
 135 .PATH: $M
 136
 137 ${PROG}: ${OBJS} ${DPADD}
 138         ${_MKMSG_LINK} ${PROG}
 139         ${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
 140
 141 .if ${SHLINKINSTALLDIR} != "/usr/libexec"
 142 SYMLINKS+=      ${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
 143 .endif
 144
 145 .include <bsd.prog.mk>
 146 .else
 147
 148 MAN=            ld.elf_so.1
 149
 150 .include <bsd.man.mk>
 151 .endif