* Makefile.am: Run "make dep-am".

        (AM_CPPFLAGS): New.
        (LIBDL): New.
        (ALL_MACHINES): Add cpu-plugin.lo.
        (ALL_MACHINES_CFILES): Add cpu-plugin.c.
        (BFD32_BACKENDS): Add plugin.lo.
        (BFD32_BACKENDS_CFILES): Add plugin.c.
        (libbfd_la_LIBADD): Add LIBDL
        * archures.c (bfd_architecture): Add bfd_arch_plugin.
        (bfd_plugin_arch): Declare.
        * bfd-in.h (BFD_SUPPORTS_PLUGINS): New.
        * bfd.c (bfd): Add plugin_data.
        * config.bfd: Handle the plugin target.
        * configure.in: Check for --enable-plugins.
        (LT_INIT): Use the dlopen option.
        * cpu-plugin.c: New.
        * plugin.c: New.
        * plugin.h: New.
        * targets.c (plugin_vec): Declare.
        (_bfd_target_vector): Add plugin_vec.
        * Makefile.in: Regenerate.
        * bfd-in2.h: Regenerate.
        * configure: Regenerate.
        * ar.c: Include plugin.h.
        (main): Handle the --plugin option.
        * nm.c: Include plugin.h.
        (OPTION_PLUGIN): New.
        (long_options): Add plugin.
        (main): Handle OPTION_PLUGIN.
        * NEWS: Mention  the new feature.
        * doc/binutils: Documement the new command line options.
        * configure.in: Check for --enable-plugins.
        * configure: Regenerate.

1 files changed, 30 insertions, 15 deletions

diff --git a/binutils/configure b/binutils/configure
index d646ab6913..83ba316007 100755
--- a/binutils/configure
+++ b/binutils/configure
@@ -1002,6 +1002,7 @@ Optional Features:
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
   --disable-dependency-tracking  speeds up one-time build
   --enable-dependency-tracking   do not reject slow dependency extractors
+  --enable-plugins        linker plugins (defaults no)
   --disable-largefile     omit support for large files
   --enable-shared[=PKGS]
                           build shared libraries [default=yes]
@@ -4736,6 +4737,18 @@ _ACEOF
 
 
 
+# Check whether --enable-plugins or --disable-plugins was given.
+if test "${enable_plugins+set}" = set; then
+  enableval="$enable_plugins"
+  case "${enableval}" in
+  yes | "") plugins=yes ;;
+  no) plugins=no ;;
+  *) plugins=yes ;;
+ esac
+else
+  plugins=no
+fi;
+
 case "${target}" in
   sparc-*-solaris*|i[3-7]86-*-solaris*)
     # See comment in bfd/configure.in for the reason for this test.
@@ -4743,7 +4756,9 @@ case "${target}" in
     # configure script so that the utilities in this directory agree
     # on the size of structures used to describe files.
     if test "${target}" = "${host}" -a "$enable_largefile" != 'yes'; then
-      enable_largefile="no"
+      if test "$plugins" = "no"; then
+        enable_largefile="no"
+      fi
     fi
     ;;
 esac
@@ -5518,13 +5533,13 @@ if test "${lt_cv_nm_interface+set}" = set; then
 else
   lt_cv_nm_interface="BSD nm"
   echo "int some_variable = 0;" > conftest.$ac_ext
-  (eval echo "\"\$as_me:5521: $ac_compile\"" >&5)
+  (eval echo "\"\$as_me:5536: $ac_compile\"" >&5)
   (eval "$ac_compile" 2>conftest.err)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:5524: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval echo "\"\$as_me:5539: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
   (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:5527: output\"" >&5)
+  (eval echo "\"\$as_me:5542: output\"" >&5)
   cat conftest.out >&5
   if $GREP 'External.*some_variable' conftest.out > /dev/null; then
     lt_cv_nm_interface="MS dumpbin"
@@ -6681,7 +6696,7 @@ ia64-*-hpux*)
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 6684 "configure"' > conftest.$ac_ext
+  echo '#line 6699 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -7987,11 +8002,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7990: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8005: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:7994: \$? = $ac_status" >&5
+   echo "$as_me:8009: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -8326,11 +8341,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:8329: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8344: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:8333: \$? = $ac_status" >&5
+   echo "$as_me:8348: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -8431,11 +8446,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:8434: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8449: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:8438: \$? = $ac_status" >&5
+   echo "$as_me:8453: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -8486,11 +8501,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:8489: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8504: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:8493: \$? = $ac_status" >&5
+   echo "$as_me:8508: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -11298,7 +11313,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11301 "configure"
+#line 11316 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11394,7 +11409,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11397 "configure"
+#line 11412 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H