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import gdb-1999-12-06 snapshot

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This commit is contained in:
Jason Molenda 1999-12-07 03:56:43 +00:00
parent 1e37c28164
commit c2d11a7da0
115 changed files with 19925 additions and 1063 deletions
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115
gdb/utils.c
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@ -98,6 +98,7 @@ static struct cleanup *exec_error_cleanup_chain;
support async execution. The finish and until commands use it. So
does the target extended-remote command. */
struct continuation *cmd_continuation;
struct continuation *intermediate_continuation;
/* Nonzero if we have job control. */
@ -406,7 +407,7 @@ null_cleanup (arg)
}
/* Add a continuation to the continuation list, the gloabl list
cmd_continuation. */
cmd_continuation. The new continuation will be added at the front.*/
void
add_continuation (continuation_hook, arg_list)
void (*continuation_hook) PARAMS ((struct continuation_arg *));
@ -422,19 +423,34 @@ add_continuation (continuation_hook, arg_list)
}
/* Walk down the cmd_continuation list, and execute all the
continuations. */
continuations. There is a problem though. In some cases new
continuations may be added while we are in the middle of this
loop. If this happens they will be added in the front, and done
before we have a chance of exhausting those that were already
there. We need to then save the beginning of the list in a pointer
and do the continuations from there on, instead of using the
global beginning of list as our iteration pointer.*/
void
do_all_continuations ()
{
struct continuation *continuation_ptr;
struct continuation *saved_continuation;
while (cmd_continuation)
{
(cmd_continuation->continuation_hook) (cmd_continuation->arg_list);
continuation_ptr = cmd_continuation;
cmd_continuation = continuation_ptr->next;
free (continuation_ptr);
}
/* Copy the list header into another pointer, and set the global
list header to null, so that the global list can change as a side
effect of invoking the continuations and the processing of
the preexisting continuations will not be affected. */
continuation_ptr = cmd_continuation;
cmd_continuation = NULL;
/* Work now on the list we have set aside. */
while (continuation_ptr)
{
(continuation_ptr->continuation_hook) (continuation_ptr->arg_list);
saved_continuation = continuation_ptr;
continuation_ptr = continuation_ptr->next;
free (saved_continuation);
}
}
/* Walk down the cmd_continuation list, and get rid of all the
@ -452,6 +468,68 @@ discard_all_continuations ()
}
}
/* Add a continuation to the continuation list, the gloabl list
intermediate_continuation. The new continuation will be added at the front.*/
void
add_intermediate_continuation (continuation_hook, arg_list)
void (*continuation_hook) PARAMS ((struct continuation_arg *));
struct continuation_arg *arg_list;
{
struct continuation *continuation_ptr;
continuation_ptr = (struct continuation *) xmalloc (sizeof (struct continuation));
continuation_ptr->continuation_hook = continuation_hook;
continuation_ptr->arg_list = arg_list;
continuation_ptr->next = intermediate_continuation;
intermediate_continuation = continuation_ptr;
}
/* Walk down the cmd_continuation list, and execute all the
continuations. There is a problem though. In some cases new
continuations may be added while we are in the middle of this
loop. If this happens they will be added in the front, and done
before we have a chance of exhausting those that were already
there. We need to then save the beginning of the list in a pointer
and do the continuations from there on, instead of using the
global beginning of list as our iteration pointer.*/
void
do_all_intermediate_continuations ()
{
struct continuation *continuation_ptr;
struct continuation *saved_continuation;
/* Copy the list header into another pointer, and set the global
list header to null, so that the global list can change as a side
effect of invoking the continuations and the processing of
the preexisting continuations will not be affected. */
continuation_ptr = intermediate_continuation;
intermediate_continuation = NULL;
/* Work now on the list we have set aside. */
while (continuation_ptr)
{
(continuation_ptr->continuation_hook) (continuation_ptr->arg_list);
saved_continuation = continuation_ptr;
continuation_ptr = continuation_ptr->next;
free (saved_continuation);
}
}
/* Walk down the cmd_continuation list, and get rid of all the
continuations. */
void
discard_all_intermediate_continuations ()
{
struct continuation *continuation_ptr;
while (intermediate_continuation)
{
continuation_ptr = intermediate_continuation;
intermediate_continuation = continuation_ptr->next;
free (continuation_ptr);
}
}
/* Print a warning message. Way to use this is to call warning_begin,
@ -525,17 +603,28 @@ error_begin ()
NORETURN void
verror (const char *string, va_list args)
{
char *err_string;
struct cleanup *err_string_cleanup;
/* FIXME: cagney/1999-11-10: All error calls should come here.
Unfortunatly some code uses the sequence: error_begin(); print
error message; return_to_top_level. That code should be
flushed. */
error_begin ();
vfprintf_filtered (gdb_stderr, string, args);
fprintf_filtered (gdb_stderr, "\n");
/* Save it as the last error as well (no newline) */
/* NOTE: It's tempting to just do the following...
vfprintf_filtered (gdb_stderr, string, args);
and then follow with a similar looking statement to cause the message
to also go to gdb_lasterr. But if we do this, we'll be traversing the
va_list twice which works on some platforms and fails miserably on
others. */
/* Save it as the last error */
gdb_file_rewind (gdb_lasterr);
vfprintf_filtered (gdb_lasterr, string, args);
va_end (args);
/* Retrieve the last error and print it to gdb_stderr */
err_string = error_last_message ();
err_string_cleanup = make_cleanup (free, err_string);
fputs_filtered (err_string, gdb_stderr);
fprintf_filtered (gdb_stderr, "\n");
do_cleanups (err_string_cleanup);
return_to_top_level (RETURN_ERROR);
}