Re: [0/8] solib handler rework

["Ulrich Weigand" <uweigand at de dot ibm dot com>]

Joel Brobecker wrote:

> > - If there is sometimes the need to add a special compatibility 
> >   library like -lxpdl, we need to add the appropriate configure
> >   magic to make that happen ...
> 
> This is the option that I prefer. I'm not sure that a 32bit GDB
> on HP/UX will be able to debug a 64bit program, but at least that's
> a step in that direction.

Something like the configure patch below should do that.
(Should apply on top of the solib patches.)

Bye,
Ulrich


diff -urNp gdb-orig/gdb/configure gdb-head/gdb/configure
--- gdb-orig/gdb/configure	2007-10-19 23:36:41.000000000 +0200
+++ gdb-head/gdb/configure	2007-10-22 20:28:15.532021324 +0200
@@ -5629,6 +5629,134 @@ if test "$ac_cv_search_waddstr" != no; t
 fi
 
 
+# On HP/UX we may need libxpdl for dlgetmodinfo (used by solib-pa64.c).
+echo "$as_me:$LINENO: checking for library containing dlgetmodinfo" >&5
+echo $ECHO_N "checking for library containing dlgetmodinfo... $ECHO_C" >&6
+if test "${ac_cv_search_dlgetmodinfo+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+ac_cv_search_dlgetmodinfo=no
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dlgetmodinfo ();
+int
+main ()
+{
+dlgetmodinfo ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_search_dlgetmodinfo="none required"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+if test "$ac_cv_search_dlgetmodinfo" = no; then
+  for ac_lib in dl xpdl; do
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dlgetmodinfo ();
+int
+main ()
+{
+dlgetmodinfo ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_search_dlgetmodinfo="-l$ac_lib"
+break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+  done
+fi
+LIBS=$ac_func_search_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_search_dlgetmodinfo" >&5
+echo "${ECHO_T}$ac_cv_search_dlgetmodinfo" >&6
+if test "$ac_cv_search_dlgetmodinfo" != no; then
+  test "$ac_cv_search_dlgetmodinfo" = "none required" || LIBS="$ac_cv_search_dlgetmodinfo $LIBS"
+
+fi
+
+
 # Since GDB uses Readline, we need termcap functionality.  In many
 # cases this will be provided by the curses library, but some systems
 # have a seperate termcap library, or no curses library at all.
diff -urNp gdb-orig/gdb/configure.ac gdb-head/gdb/configure.ac
--- gdb-orig/gdb/configure.ac	2007-10-19 23:36:41.000000000 +0200
+++ gdb-head/gdb/configure.ac	2007-10-22 20:28:06.689965572 +0200
@@ -319,6 +319,9 @@ AC_SEARCH_LIBS(socketpair, socket)
 # a situation.
 AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses])
 
+# On HP/UX we may need libxpdl for dlgetmodinfo (used by solib-pa64.c).
+AC_SEARCH_LIBS(dlgetmodinfo, [dl xpdl])
+
 # Since GDB uses Readline, we need termcap functionality.  In many
 # cases this will be provided by the curses library, but some systems
 # have a seperate termcap library, or no curses library at all.


-- 
  Dr. Ulrich Weigand
  GNU Toolchain for Linux on System z and Cell BE
  Ulrich.Weigand@de.ibm.com