diff options
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/ChangeLog | 13 | ||||
| -rw-r--r-- | gdb/cli/cli-decode.c | 92 | ||||
| -rw-r--r-- | gdb/cli/cli-decode.h | 8 | ||||
| -rw-r--r-- | gdb/command.h | 2 | ||||
| -rw-r--r-- | gdb/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.base/commands.exp | 30 |
6 files changed, 114 insertions, 36 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 19a4275..cb3917f 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,18 @@ 2008-12-09 Tom Tromey <tromey@redhat.com> + PR gdb/1815: + * cli/cli-decode.c (delete_cmd): Forward declare. + (delete_cmd): Now static. Change return type. Remove command + from alias chain. Rewrite. + (add_cmd): Initialize new fields. Update cmd_pointer on all + aliases. + (add_alias_cmd): Put command on alias chain. + * command.h (delete_cmd): Don't declare. + * cli/cli-decode.h (delete_cmd): Don't declare. + (struct cmd_list_element) <aliases, alias_chain>: New fields. + +2008-12-09 Tom Tromey <tromey@redhat.com> + * config.in, configure: Rebuild. * configure.ac: Check for locale.h, setlocale. Call AM_LC_MESSAGES. diff --git a/gdb/cli/cli-decode.c b/gdb/cli/cli-decode.c index 9cc52ba..613b8d7 100644 --- a/gdb/cli/cli-decode.c +++ b/gdb/cli/cli-decode.c @@ -37,6 +37,9 @@ static void undef_cmd_error (char *, char *); +static struct cmd_list_element *delete_cmd (char *name, + struct cmd_list_element **list); + static struct cmd_list_element *find_cmd (char *command, int len, struct cmd_list_element *clist, @@ -154,9 +157,13 @@ add_cmd (char *name, enum command_class class, void (*fun) (char *, int), { struct cmd_list_element *c = (struct cmd_list_element *) xmalloc (sizeof (struct cmd_list_element)); - struct cmd_list_element *p; + struct cmd_list_element *p, *iter; - delete_cmd (name, list); + /* Turn each alias of the old command into an alias of the new + command. */ + c->aliases = delete_cmd (name, list); + for (iter = c->aliases; iter; iter = iter->alias_chain) + iter->cmd_pointer = c; if (*list == NULL || strcmp ((*list)->name, name) >= 0) { @@ -198,6 +205,7 @@ add_cmd (char *name, enum command_class class, void (*fun) (char *, int), c->hookee_pre = NULL; c->hookee_post = NULL; c->cmd_pointer = NULL; + c->alias_chain = NULL; return c; } @@ -239,7 +247,9 @@ add_alias_cmd (char *name, char *oldname, enum command_class class, if (old == 0) { - delete_cmd (name, list); + struct cmd_list_element *aliases = delete_cmd (name, list); + /* If this happens, it means a programmer error somewhere. */ + gdb_assert (!aliases); return 0; } @@ -252,6 +262,8 @@ add_alias_cmd (char *name, char *oldname, enum command_class class, c->allow_unknown = old->allow_unknown; c->abbrev_flag = abbrev_flag; c->cmd_pointer = old; + c->alias_chain = old->aliases; + old->aliases = c; return c; } @@ -614,42 +626,58 @@ add_setshow_zinteger_cmd (char *name, enum command_class class, NULL, NULL); } -/* Remove the command named NAME from the command list. */ +/* Remove the command named NAME from the command list. Return the + list commands which were aliased to the deleted command. If the + command had no aliases, return NULL. */ -void +static struct cmd_list_element * delete_cmd (char *name, struct cmd_list_element **list) { - struct cmd_list_element *c; - struct cmd_list_element *p; + struct cmd_list_element *iter; + struct cmd_list_element **previous_chain_ptr; + struct cmd_list_element *aliases = NULL; + + previous_chain_ptr = list; - while (*list && strcmp ((*list)->name, name) == 0) + for (iter = *previous_chain_ptr; iter; iter = *previous_chain_ptr) { - if ((*list)->hookee_pre) - (*list)->hookee_pre->hook_pre = 0; /* Hook slips out of its mouth */ - if ((*list)->hookee_post) - (*list)->hookee_post->hook_post = 0; /* Hook slips out of its bottom */ - p = (*list)->next; - xfree (* list); - *list = p; + if (strcmp (iter->name, name) == 0) + { + if (iter->hookee_pre) + iter->hookee_pre->hook_pre = 0; + if (iter->hookee_post) + iter->hookee_post->hook_post = 0; + + /* Update the link. */ + *previous_chain_ptr = iter->next; + + aliases = iter->aliases; + + /* If this command was an alias, remove it from the list of + aliases. */ + if (iter->cmd_pointer) + { + struct cmd_list_element **prevp = &iter->cmd_pointer->aliases; + struct cmd_list_element *a = *prevp; + + while (a != iter) + { + prevp = &a->alias_chain; + a = *prevp; + } + *prevp = iter->alias_chain; + } + + xfree (iter); + + /* We won't see another command with the same name. */ + break; + } + else + previous_chain_ptr = &iter->next; } - if (*list) - for (c = *list; c->next;) - { - if (strcmp (c->next->name, name) == 0) - { - if (c->next->hookee_pre) - c->next->hookee_pre->hook_pre = 0; /* hooked cmd gets away. */ - if (c->next->hookee_post) - c->next->hookee_post->hook_post = 0; /* remove post hook */ - /* :( no fishing metaphore */ - p = c->next->next; - xfree (c->next); - c->next = p; - } - else - c = c->next; - } + return aliases; } /* Shorthands to the commands above. */ diff --git a/gdb/cli/cli-decode.h b/gdb/cli/cli-decode.h index 4e2dbc1..9d27f0f 100644 --- a/gdb/cli/cli-decode.h +++ b/gdb/cli/cli-decode.h @@ -197,6 +197,12 @@ struct cmd_list_element /* Pointer to command that is aliased by this one, so the aliased command can be located in case it has been hooked. */ struct cmd_list_element *cmd_pointer; + + /* Start of a linked list of all aliases of this command. */ + struct cmd_list_element *aliases; + + /* Link pointer for aliases on an alias list. */ + struct cmd_list_element *alias_chain; }; /* API to the manipulation of command lists. */ @@ -290,8 +296,6 @@ extern char **complete_on_cmdlist (struct cmd_list_element *, char *, char *); extern char **complete_on_enum (const char *enumlist[], char *, char *); -extern void delete_cmd (char *, struct cmd_list_element **); - extern void help_cmd_list (struct cmd_list_element *, enum command_class, char *, int, struct ui_file *); diff --git a/gdb/command.h b/gdb/command.h index cf09c01..5678c9e 100644 --- a/gdb/command.h +++ b/gdb/command.h @@ -193,8 +193,6 @@ extern char **complete_on_cmdlist (struct cmd_list_element *, char *, char *); extern char **complete_on_enum (const char *enumlist[], char *, char *); -extern void delete_cmd (char *, struct cmd_list_element **); - extern void help_cmd (char *, struct ui_file *); extern void help_list (struct cmd_list_element *, char *, diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index ab628c8..88cbff8b 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2008-12-09 Tom Tromey <tromey@redhat.com> + + * gdb.base/commands.exp (redefine_backtrace_test): New proc. + Call it. + 2008-12-04 Doug Evans <dje@google.com> * gdb.server/ext-run.exp: Relax regexp for init program. diff --git a/gdb/testsuite/gdb.base/commands.exp b/gdb/testsuite/gdb.base/commands.exp index 301b995..f6be3ea 100644 --- a/gdb/testsuite/gdb.base/commands.exp +++ b/gdb/testsuite/gdb.base/commands.exp @@ -692,6 +692,34 @@ proc if_commands_test {} { } } +proc redefine_backtrace_test {} { + global gdb_prompt + + gdb_test_multiple "define backtrace" "define backtrace" { + -re "Really redefine built-in.*$" { + send_gdb "y\n" + exp_continue + } + + -re "End with" { + pass "define backtrace in redefine_backtrace_test" + } + default { + fail "(timeout or eof) define backtrace in redefine_backtrace_test" + } + } + gdb_test "echo hibob\\n\nend" \ + "" \ + "enter commands in redefine_backtrace_test" + + gdb_test "backtrace" \ + "hibob" \ + "execute backtrace command in redefine_backtrace_test" + gdb_test "bt" \ + "hibob" \ + "execute bt command in redefine_backtrace_test" +} + gdbvar_simple_if_test gdbvar_simple_while_test gdbvar_complex_if_while_test @@ -710,3 +738,5 @@ temporary_breakpoint_commands stray_arg0_test recursive_source_test if_commands_test +# This one should come last, as it redefines "backtrace". +redefine_backtrace_test |