libexec/ld.elf_so/Makefile

   1 #       $NetBSD: Makefile,v 1.125 2013/11/16 17:14:06 skrll Exp $
   2 #
   3 # NOTE: when changing ld.so, ensure that ldd still compiles.
   4 #
   5
   6 USE_BITCODE=no
   7
   8 WARNS?=4
   9
  10 LDELFSO_MACHINE_ARCH?= ${MACHINE_ARCH}
  11
  12 # This needs to be before bsd.init.mk
  13 .if defined(BSD_MK_COMPAT_FILE)
  14 .include <${BSD_MK_COMPAT_FILE}>
  15 .endif
  16
  17 # We are not building this with PIE
  18 PIE_CFLAGS=
  19 PIE_LDFLAGS=
  20 .include <bsd.init.mk>                  # for MKPIC definition
  21 .include <bsd.shlib.mk>                 # for SHLINKINSTALLDIR definition
  22
  23 .if defined(LDELFSO_MACHINE_CPU) && !empty(LDELFSO_MACHINE_CPU) && \
  24     exists(${.CURDIR}/arch/${LDELFSO_MACHINE_CPU})
  25 ARCHSUBDIR=     ${LDELFSO_MACHINE_CPU}
  26 .else
  27 ARCHSUBDIR=     ${MACHINE_CPU}
  28 .endif
  29 M=              ${.CURDIR}/arch/${ARCHSUBDIR}
  30
  31 .if ((${LDELFSO_MACHINE_ARCH} == "alpha") ||                            \
  32      (${MACHINE_CPU} == "arm") ||                                       \
  33      (${LDELFSO_MACHINE_ARCH} == "coldfire") ||                         \
  34      (${LDELFSO_MACHINE_ARCH} == "hppa") ||                             \
  35      (${LDELFSO_MACHINE_ARCH} == "i386") ||                             \
  36      (${LDELFSO_MACHINE_ARCH} == "m68k") ||                             \
  37      (${MACHINE_CPU} == "mips") ||                                      \
  38      (${LDELFSO_MACHINE_ARCH} == "powerpc") ||                          \
  39      (${MACHINE_CPU} == "sh3") ||                                       \
  40      (${LDELFSO_MACHINE_ARCH} == "sparc") ||                            \
  41      (${LDELFSO_MACHINE_ARCH} == "sparc64") ||                          \
  42      (${LDELFSO_MACHINE_ARCH} == "x86_64") ||                           \
  43      (${LDELFSO_MACHINE_ARCH} == "vax")) &&                             \
  44     ${MKPIC} != "no"
  45
  46 LDFLAGS+=       ${${ACTIVE_CC} == "clang":? -Wl,-Bsymbolic : -symbolic} \
  47                 -shared -nostartfiles -nodefaultlibs
  48 .if defined(__MINIX) && ${HAVE_GOLD:Uno} == "no"
  49 LDFLAGS+=      -Wl,-static
  50 .endif
  51 LDFLAGS+=       -Wl,--warn-shared-textrel
  52
  53 COPTS+=         -fvisibility=hidden
  54
  55 # Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
  56 # is first.
  57 .if exists($M/Makefile.inc)
  58 .include "$M/Makefile.inc"
  59 .endif
  60
  61 # Support compat ld.elf_so.
  62 .if defined(MLIBDIR)
  63 PROG=           ld.elf_so-${MLIBDIR}
  64 CPPFLAGS+=      -DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
  65 .else
  66 PROG=           ld.elf_so
  67 .endif
  68
  69 CLIBOBJ!=       cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
  70
  71 SRCS+=          rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
  72                 map_object.c load.c search.c headers.c paths.c expand.c \
  73                 tls.c symver.c diagassert.c
  74
  75 .if defined(__MINIX)
  76 SRCS+=          map_object_fallback.c
  77 .endif # defined(__MINIX)
  78
  79 .if ${USE_FORT} == "yes"
  80 .PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
  81 SRCS+=          stack_protector.c
  82 .endif
  83
  84 .PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
  85 SRCS+=          exit.c
  86
  87 errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/sys/sys/errno.h
  88         ${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \
  89         mv -f ${.TARGET}.tmp ${.TARGET}
  90
  91 xprintf.c: errlist_concat.h
  92
  93 CLEANFILES+=    errlist_concat.h
  94
  95 BINDIR=         ${SHLINKINSTALLDIR}
  96
  97 CPPFLAGS+=      -DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
  98 CPPFLAGS+=      -I${.CURDIR} -I.
  99 CPPFLAGS+=      -DRTLD_LOADER
 100 CPPFLAGS+=      -D_RTLD_SOURCE
 101 CPPFLAGS+=      -DCOMBRELOC
 102 #CPPFLAGS+=     -DDEBUG
 103 #CPPFLAGS+=     -DRTLD_DEBUG
 104 #CPPFLAGS+=     -DRTLD_DEBUG_RELOC
 105 .if !empty(LDELFSO_MACHINE_ARCH:Mearm*)
 106 CPPFLAGS+=      -I${NETBSDSRCDIR}/lib/libexecinfo
 107 .endif
 108 #DBG=           -g
 109 COPTS+=         -O3
 110
 111 .if ${MACHINE_CPU} != "m68k" && ${MACHINE_CPU} != "sh3" && ${MACHINE_ARCH} != "vax"
 112 COPTS+=         -fomit-frame-pointer
 113 .endif
 114
 115 .if ${LDELFSO_MACHINE_ARCH} == "i386" || ${LDELFSO_MACHINE_ARCH} == "x86_64"
 116 COPTS+=         -mno-3dnow -mno-mmx -mno-sse -mno-sse2 -mno-sse3
 117 .endif
 118
 119
 120 .if ${SHLIBDIR} != ${LIBDIR}
 121 CPPFLAGS+=      -DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
 122 .endif
 123
 124 # rtld.c and symbol.c use alloca, so disable SSP warnings.
 125 COPTS.rtld.c+=  -Wno-stack-protector
 126 COPTS.symbol.c+=-Wno-stack-protector
 127
 128 LDADD+=         -L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
 129 .if ${MKPICLIB} != "no"
 130 LDADD+=         -lc_pic
 131 .if ${MKPICINSTALL} != "no"
 132 DPADD+=         ${LIBC_PIC}
 133 .endif
 134 DPADD+=         ${CLIBOBJ}/libc_pic.a
 135 .else
 136 LDADD+=         -lc
 137 DPADD+=         ${CLIBOBJ}/libc.a
 138 .endif
 139
 140 .if ${MACHINE_CPU} == "hppa" || ${MACHINE_CPU} == "sh3"
 141 # for $$divU, $$remU etc. (millicode)
 142 LDADD+=         -lgcc
 143 DPADD+=         ${LIBGCC}
 144 .endif
 145
 146 STRIPFLAG=
 147
 148 .PATH: $M
 149
 150
 151 ${PROG}: ${OBJS} ${DPADD}
 152         ${_MKMSG_LINK} ${PROG}
 153         ${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
 154 .if ${MKDEBUG} != "no"
 155         (  ${OBJCOPY} --only-keep-debug ${.TARGET} ${.TARGET}.debug \
 156            && ${OBJCOPY} --strip-debug -p -R .gnu_debuglink \
 157            --add-gnu-debuglink=${.TARGET}.debug ${.TARGET} \
 158         ) || (rm -f ${.TARGET}.debug; false)
 159
 160 _PROGDEBUG.${PROG} := ${PROG}.debug
 161 .endif
 162
 163
 164 .if ${SHLINKINSTALLDIR} != "/usr/libexec"
 165 SYMLINKS+=      ${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
 166 .if ${MKDEBUG} != "no"
 167 SYMLINKS+=      ${DEBUGDIR}${BINDIR}/${PROG}.debug \
 168                 ${DEBUGDIR}/usr${BINDIR}/${PROG}.debug
 169 .endif
 170 .endif
 171
 172 .include <bsd.prog.mk>
 173 .else
 174
 175 MAN=            ld.elf_so.1
 176
 177 .include <bsd.man.mk>
 178 .endif