Allow re-assigning to convenience variables

[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.base / gdbvars.exp

diff --git a/gdb/testsuite/gdb.base/gdbvars.exp b/gdb/testsuite/gdb.base/gdbvars.exp
index 2ab37e0222ffe877c5eeed47c7d6a49b7752ca6e..a4e5b417ac50f394c08d984884829f92b4654e03 100644 (file)
--- a/gdb/testsuite/gdb.base/gdbvars.exp
+++ b/gdb/testsuite/gdb.base/gdbvars.exp
@@ -1,47 +1,43 @@
-# Copyright (C) 1992, 1997 Free Software Foundation, Inc.
+# Copyright (C) 1992-2019 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 2 of the License, or
+# 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, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  
-
-# Please email any bugs, comments, and/or additions to this file to:
-# bug-gdb@prep.ai.mit.edu
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 # This file was written by Fred Fish. (fnf@cygnus.com)
 
-if $tracelevel then {
-       strace $tracelevel
-}
 
-set prms_id 0
-set bug_id 0
+standard_testfile
+
+if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
+    return -1
+}
 
 proc test_convenience_variables {} {
     global gdb_prompt
 
-    gdb_test "set \$foo = 101" "" \
+    gdb_test_no_output "set \$foo = 101" \
        "Set a new convenience variable"
 
     gdb_test "print \$foo"             " = 101" \
        "Print contents of new convenience variable"
 
-    gdb_test "set \$foo = 301" "" \
+    gdb_test_no_output "set \$foo = 301" \
        "Set convenience variable to a new value"
 
     gdb_test "print \$foo"             " = 301" \
        "Print new contents of convenience variable"
 
-    gdb_test "set \$_ = 11"            "" \
+    gdb_test_no_output "set \$_ = 11" \
        "Set convenience variable \$_"
 
     gdb_test "print \$_"               " = 11" \
@@ -55,6 +51,49 @@ proc test_convenience_variables {} {
 
     gdb_test "print \$bar"             " = void" \
        "Print contents of uninitialized convenience variable"
+
+
+    gdb_test "print \$str = \"some string\"" \
+       " = \"some string\"" \
+       "Set convenience variable to string value"
+    gdb_test "print \$str = \"some other string\"" \
+       " = \"some other string\"" \
+       "Change convenience variable to different string value"
+
+    gdb_test "print \$arr = {1, 2, 3}" \
+       " = \\{1, 2, 3\\}" \
+       "Set convenience variable to array value"
+    gdb_test "print \$arr = {0, 1, 2, 3}" \
+       " = \\{0, 1, 2, 3\\}" \
+       "Set convenience variable to different array value"
+}
+
+proc test_convenience_functions {} {
+    gdb_test "print \$_isvoid" " = <internal function _isvoid>" \
+       "Print internal function \$_isvoid"
+
+    gdb_test "print \$isvoid_foo" " = void" \
+       "Print void convenience variable"
+
+    gdb_test "print \$_isvoid (\$isvoid_foo)" " = 1" \
+       "Check whether void convenience variable is void"
+
+    gdb_test_no_output "set \$isvoid_foo = 1" \
+       "Set void convenience variable to 1"
+
+    gdb_test "print \$_isvoid (\$isvoid_foo)" " = 0" \
+       "Check whether non-void convenience variable is void"
+
+    # For the next test, we need the inferior to be running.
+    if { ![runto_main] } {
+       return -1
+    }
+
+    gdb_test "print \$_isvoid (foo_void ())" " = 1" \
+       "Check whether void function is void"
+
+    gdb_test "print \$_isvoid (foo_int ())" " = 0" \
+       "Check whether non-void function is void"
 }
 
 proc test_value_history {} {
@@ -84,7 +123,7 @@ proc test_value_history {} {
     gdb_test "print \$0"       "\\\$8 = 102" \
        "Print value-history\[MAX\] using explicit index \$0"
 
-    gdb_test "print 108"       "\\\$9 = 108" ""
+    gdb_test "print 108"       "\\\$9 = 108"
 
     gdb_test "print \$\$0"     "\\\$10 = 108" \
        "Print value-history\[MAX\] using explicit index \$\$0"
@@ -105,13 +144,17 @@ proc test_value_history {} {
        "Use value-history element in arithmetic expression"
 }
 
-# Start with a fresh gdb.
-
-gdb_exit
-gdb_start
-gdb_reinitialize_dir $srcdir/$subdir
+proc test_with_program {} {
+    global hex
+    gdb_test_no_output "set \$prog_var = p" \
+       "Set a new convenience variable to a program variable"
+    gdb_test "print /x \$prog_var" " = $hex" \
+       "Print contents of new convenience variable of program variable"
+}
 
-send_gdb "set print sevenbit-strings\n" ; gdb_expect -re ".*$gdb_prompt $"
+gdb_test_no_output "set print sevenbit-strings"
 
 test_value_history
 test_convenience_variables
+test_convenience_functions
+test_with_program