Add print 'file'::var testcase with two libs defining the same global variable

gdb/testsuite/ChangeLog:

	* gdb.base/print-file-var-lib1.c, gdb.base/print-file-var-lib2.c,
	gdb.base/print-file-var-main.c, gdb.base/print-file-var.exp:
	New files.

gdb/ChangeLog:

        * config/djgpp/fnchange.lst: Add entries for print-file-var-lib1.c,
        print-file-var-lib2.c, print-file-var-main.c and
        print-file-var.exp (located in gdb/testsuite/gdb.base).

gdb/ChangeLog

@@ -1,3 +1,9 @@
+2012-05-10  Joel Brobecker  <brobecker@adacore.com>
+
+	* config/djgpp/fnchange.lst: Add entries for print-file-var-lib1.c,
+	print-file-var-lib2.c, print-file-var-main.c and
+	print-file-var.exp (located in gdb/testsuite/gdb.base).
+
 2012-05-10  Joel Brobecker  <brobecker@adacore.com>
 
 	* findvar.c (default_read_var_value): For LOC_UNRESOLVED symbols,

gdb/config/djgpp/fnchange.lst

@@ -417,6 +417,10 @@
 @V@/gdb/testsuite/gdb.base/hook-stop-frame.c @V@/gdb/testsuite/gdb.base/hstop-frame.c
 @V@/gdb/testsuite/gdb.base/hook-stop-continue.exp @V@/gdb/testsuite/gdb.base/hstop-continue.exp
 @V@/gdb/testsuite/gdb.base/hook-stop-frame.exp @V@/gdb/testsuite/gdb.base/hstop-frame.exp
+@V@/gdb/testsuite/gdb.base/print-file-var-lib1.c @V@/gdb/testsuite/gdb.base/pfv-lib1.c
+@V@/gdb/testsuite/gdb.base/print-file-var-lib2.c @V@/gdb/testsuite/gdb.base/pfv-lib2.c
+@V@/gdb/testsuite/gdb.base/print-file-var-main.c @V@/gdb/testsuite/gdb.base/pfv-main.c
+@V@/gdb/testsuite/gdb.base/print-file-var.exp @V@/gdb/testsuite/gdb.base/pfv.exp
 @V@/gdb/testsuite/gdb.base/return-nodebug1.c @V@/gdb/testsuite/gdb.base/return-1nodebug.c
 @V@/gdb/testsuite/gdb.base/siginfo-addr.c @V@/gdb/testsuite/gdb.base/si-addr.c
 @V@/gdb/testsuite/gdb.base/siginfo-obj.c @V@/gdb/testsuite/gdb.base/si-obj.c

gdb/testsuite/ChangeLog

@@ -1,3 +1,9 @@
+2012-05-10  Joel Brobecker  <brobecker@adacore.com>
+
+	* config/djgpp/fnchange.lst: Add entries for print-file-var-lib1.c,
+	print-file-var-lib2.c, print-file-var-main.c and
+	print-file-var.exp (located in gdb/testsuite/gdb.base).
+
 2012-05-10  Joel Brobecker  <brobecker@adacore.com>
 
 	* gdb.base/ctxobj-f.c, gdb.base/ctxobj-m.c, gdb.base/ctxobj-v.c,

gdb/testsuite/gdb.base/print-file-var-lib1.c

@@ -0,0 +1,23 @@
+/* This testcase is part of GDB, the GNU debugger.
+   Copyright 2012 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+int this_version_id = 104;
+
+int
+get_version_1 (void)
+{
+  return this_version_id;
+}

gdb/testsuite/gdb.base/print-file-var-lib2.c

@@ -0,0 +1,23 @@
+/* This testcase is part of GDB, the GNU debugger.
+   Copyright 2012 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+int this_version_id = 203;
+
+int
+get_version_2 (void)
+{
+  return this_version_id;
+}

gdb/testsuite/gdb.base/print-file-var-main.c

@@ -0,0 +1,29 @@
+/* This testcase is part of GDB, the GNU debugger.
+   Copyright 2012 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+extern int get_version_1 (void);
+extern int get_version_2 (void);
+
+int
+main (void)
+{
+  if (get_version_1 () != 104)
+    return 1;
+  if (get_version_2 () != 104)
+    return 2;
+  return 0;
+}
+

gdb/testsuite/gdb.base/print-file-var.exp

@@ -0,0 +1,55 @@
+# Copyright 2012 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+set executable print-file-var-main
+
+set lib1 "print-file-var-lib1"
+set lib2 "print-file-var-lib2"
+
+set libobj1 "${objdir}/${subdir}/${lib1}.so"
+set libobj2 "${objdir}/${subdir}/${lib2}.so"
+
+set lib_opts { debug additional_flags=-fPIC }
+
+if { [gdb_compile_shlib ${srcdir}/${subdir}/${lib1}.c \
+                        ${libobj1} \
+                        ${lib_opts} ] != "" } {
+    return -1
+}
+if { [gdb_compile_shlib ${srcdir}/${subdir}/${lib2}.c \
+                        ${libobj2} \
+                        ${lib_opts} ] != "" } {
+    return -1
+}
+if { [gdb_compile "${srcdir}/${subdir}/${executable}.c" \
+                  "${objdir}/${subdir}/${executable}" \
+                  executable \
+                  [list debug shlib=${libobj1} shlib=${libobj2}]]
+     != ""} {
+    return -1
+}
+
+clean_restart $executable
+
+if ![runto_main] {
+    untested "could not run to main"
+    return -1
+}
+
+gdb_test "print 'print-file-var-lib1.c'::this_version_id" \
+         " = 104"
+
+gdb_test "print 'print-file-var-lib2.c'::this_version_id" \
+         " = 203"