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authorAndrew Cagney <cagney@redhat.com>2004-02-25 15:57:42 +0000
committerAndrew Cagney <cagney@redhat.com>2004-02-25 15:57:42 +0000
commit70f1b14fcce5d0bee886aefe84d8b3dcc2b78deb (patch)
treebdf47a2f73137626eeb9bf53b8f562cbf7ce7163 /gdb/cli
parent37045ff9eb20b9166d3d8156a5ef05280fbf8296 (diff)
downloadgdb-70f1b14fcce5d0bee886aefe84d8b3dcc2b78deb.tar.gz
2004-02-25 Andrew Cagney <cagney@redhat.com>
PR cli/1566. Problem found, and fix suggested by David Allan. * cli/cli-script.c (execute_control_command): Unconditionally install a cleanup. Default "ret" to "invalid_control". Use "break" instead of "return" to escape from the switch.
Diffstat (limited to 'gdb/cli')
-rw-r--r--gdb/cli/cli-script.c23
1 files changed, 13 insertions, 10 deletions
diff --git a/gdb/cli/cli-script.c b/gdb/cli/cli-script.c
index a8375a38f5f..ca0c14f043b 100644
--- a/gdb/cli/cli-script.c
+++ b/gdb/cli/cli-script.c
@@ -294,21 +294,25 @@ execute_control_command (struct command_line *cmd)
{
struct expression *expr;
struct command_line *current;
- struct cleanup *old_chain = 0;
+ struct cleanup *old_chain = make_cleanup (null_cleanup, 0);
struct value *val;
struct value *val_mark;
int loop;
enum command_control_type ret;
char *new_line;
+ /* Start by assuming failure, if a problem is detected, the code
+ below will simply "break" out of the switch. */
+ ret = invalid_control;
+
switch (cmd->control_type)
{
case simple_control:
/* A simple command, execute it and return. */
new_line = insert_args (cmd->line);
if (!new_line)
- return invalid_control;
- old_chain = make_cleanup (free_current_contents, &new_line);
+ break;
+ make_cleanup (free_current_contents, &new_line);
execute_command (new_line, 0);
ret = cmd->control_type;
break;
@@ -325,8 +329,8 @@ execute_control_command (struct command_line *cmd)
/* Parse the loop control expression for the while statement. */
new_line = insert_args (cmd->line);
if (!new_line)
- return invalid_control;
- old_chain = make_cleanup (free_current_contents, &new_line);
+ break;
+ make_cleanup (free_current_contents, &new_line);
expr = parse_expression (new_line);
make_cleanup (free_current_contents, &expr);
@@ -385,8 +389,8 @@ execute_control_command (struct command_line *cmd)
{
new_line = insert_args (cmd->line);
if (!new_line)
- return invalid_control;
- old_chain = make_cleanup (free_current_contents, &new_line);
+ break;
+ make_cleanup (free_current_contents, &new_line);
/* Parse the conditional for the if statement. */
expr = parse_expression (new_line);
make_cleanup (free_current_contents, &expr);
@@ -424,11 +428,10 @@ execute_control_command (struct command_line *cmd)
default:
warning ("Invalid control type in command structure.");
- return invalid_control;
+ break;
}
- if (old_chain)
- do_cleanups (old_chain);
+ do_cleanups (old_chain);
return ret;
}