/* General utility routines for GDB, the GNU debugger.
Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software
+ 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
Foundation, Inc.
This file is part of GDB.
#include "gdb_string.h"
#include "event-top.h"
+#ifdef TUI
+#include "tui/tui.h" /* For tui_get_command_dimension. */
+#endif
+
#ifdef __GO32__
#include <pc.h>
#endif
#include <term.h>
#endif
-#include <readline/readline.h>
-
-#ifdef USE_MMALLOC
-#include "mmalloc.h"
-#endif
+#include "readline/readline.h"
#ifdef NEED_DECLARATION_MALLOC
extern PTR malloc (); /* OK: PTR */
static void do_my_cleanups (struct cleanup **, struct cleanup *);
-#if defined (USE_MMALLOC) && !defined (NO_MMCHECK)
-static void malloc_botch (void);
-#endif
-
static void prompt_for_continue (void);
static void set_screen_size (void);
ui_file_write (data, buffer, length_buffer);
}
+/* Cause a silent error to occur. Any error message is recorded
+ though it is not issued. */
+NORETURN void
+error_silent (const char *string, ...)
+{
+ va_list args;
+ struct ui_file *tmp_stream = mem_fileopen ();
+ va_start (args, string);
+ make_cleanup_ui_file_delete (tmp_stream);
+ vfprintf_unfiltered (tmp_stream, string, args);
+ /* Copy the stream into the GDB_LASTERR buffer. */
+ ui_file_rewind (gdb_lasterr);
+ ui_file_put (tmp_stream, do_write, gdb_lasterr);
+ va_end (args);
+
+ throw_exception (RETURN_ERROR);
+}
+
+/* Output an error message including any pre-print text to gdb_stderr. */
+void
+error_output_message (char *pre_print, char *msg)
+{
+ target_terminal_ours ();
+ wrap_here (""); /* Force out any buffered output */
+ gdb_flush (gdb_stdout);
+ annotate_error_begin ();
+ if (pre_print)
+ fputs_filtered (pre_print, gdb_stderr);
+ fputs_filtered (msg, gdb_stderr);
+ fprintf_filtered (gdb_stderr, "\n");
+}
+
NORETURN void
error_stream (struct ui_file *stream)
{
about USG defines and stuff like that. */
signal (signo, request_quit);
-#ifdef REQUEST_QUIT
- REQUEST_QUIT;
-#else
if (immediate_quit)
quit ();
-#endif
}
\f
/* Memory management stuff (malloc friends). */
-#if !defined (USE_MMALLOC)
-
static void *
mmalloc (void *md, size_t size)
{
free (ptr); /* NOTE: GDB's only call to free() */
}
-#endif /* USE_MMALLOC */
-
-#if !defined (USE_MMALLOC) || defined (NO_MMCHECK)
-
-void
-init_malloc (void *md)
-{
-}
-
-#else /* Have mmalloc and want corruption checking */
-
-static void
-malloc_botch (void)
-{
- fprintf_unfiltered (gdb_stderr, "Memory corruption\n");
- internal_error (__FILE__, __LINE__, "failed internal consistency check");
-}
-
-/* Attempt to install hooks in mmalloc/mrealloc/mfree for the heap specified
- by MD, to detect memory corruption. Note that MD may be NULL to specify
- the default heap that grows via sbrk.
-
- Note that for freshly created regions, we must call mmcheckf prior to any
- mallocs in the region. Otherwise, any region which was allocated prior to
- installing the checking hooks, which is later reallocated or freed, will
- fail the checks! The mmcheck function only allows initial hooks to be
- installed before the first mmalloc. However, anytime after we have called
- mmcheck the first time to install the checking hooks, we can call it again
- to update the function pointer to the memory corruption handler.
-
- Returns zero on failure, non-zero on success. */
-
-#ifndef MMCHECK_FORCE
-#define MMCHECK_FORCE 0
-#endif
-
+/* This used to do something interesting with USE_MMALLOC.
+ * It can be retired any time. -- chastain 2004-01-19. */
void
init_malloc (void *md)
{
- if (!mmcheckf (md, malloc_botch, MMCHECK_FORCE))
- {
- /* Don't use warning(), which relies on current_target being set
- to something other than dummy_target, until after
- initialize_all_files(). */
-
- fprintf_unfiltered
- (gdb_stderr,
- "warning: failed to install memory consistency checks; ");
- fprintf_unfiltered (gdb_stderr,
- "configuration should define NO_MMCHECK or MMCHECK_FORCE\n");
- }
-
- mmtrace ();
}
-#endif /* Have mmalloc and want corruption checking */
-
/* Called when a memory allocation fails, with the number of bytes of
memory requested in SIZE. */
}
\f
+/* This function supports the nquery() and yquery() functions.
+ Ask user a y-or-n question and return 0 if answer is no, 1 if
+ answer is yes, or default the answer to the specified default.
+ DEFCHAR is either 'y' or 'n' and refers to the default answer.
+ CTLSTR is the control string and should end in "? ". It should
+ not say how to answer, because we do that.
+ ARGS are the arguments passed along with the CTLSTR argument to
+ printf. */
+
+static int
+defaulted_query (const char *ctlstr, const char defchar, va_list args)
+{
+ int answer;
+ int ans2;
+ int retval;
+ int def_value;
+ char def_answer, not_def_answer;
+ char *y_string, *n_string;
+
+ /* Set up according to which answer is the default. */
+ if (defchar == 'y')
+ {
+ def_value = 1;
+ def_answer = 'Y';
+ not_def_answer = 'N';
+ y_string = "[y]";
+ n_string = "n";
+ }
+ else
+ {
+ def_value = 0;
+ def_answer = 'N';
+ not_def_answer = 'Y';
+ y_string = "y";
+ n_string = "[n]";
+ }
+
+ if (query_hook)
+ {
+ return query_hook (ctlstr, args);
+ }
+
+ /* Automatically answer default value if input is not from a terminal. */
+ if (!input_from_terminal_p ())
+ return def_value;
+
+ while (1)
+ {
+ wrap_here (""); /* Flush any buffered output */
+ gdb_flush (gdb_stdout);
+
+ if (annotation_level > 1)
+ printf_filtered ("\n\032\032pre-%cquery\n", defchar);
+
+ vfprintf_filtered (gdb_stdout, ctlstr, args);
+ printf_filtered ("(%s or %s) ", y_string, n_string);
+
+ if (annotation_level > 1)
+ printf_filtered ("\n\032\032%cquery\n", defchar);
+
+ wrap_here ("");
+ gdb_flush (gdb_stdout);
+
+ answer = fgetc (stdin);
+ clearerr (stdin); /* in case of C-d */
+ if (answer == EOF) /* C-d */
+ {
+ retval = def_value;
+ break;
+ }
+ /* Eat rest of input line, to EOF or newline */
+ if (answer != '\n')
+ do
+ {
+ ans2 = fgetc (stdin);
+ clearerr (stdin);
+ }
+ while (ans2 != EOF && ans2 != '\n' && ans2 != '\r');
+
+ if (answer >= 'a')
+ answer -= 040;
+ /* Check answer. For the non-default, the user must specify
+ the non-default explicitly. */
+ if (answer == not_def_answer)
+ {
+ retval = !def_value;
+ break;
+ }
+ /* Otherwise, for the default, the user may either specify
+ the required input or have it default by entering nothing. */
+ if (answer == def_answer || answer == '\n' ||
+ answer == '\r' || answer == EOF)
+ {
+ retval = def_value;
+ break;
+ }
+ /* Invalid entries are not defaulted and require another selection. */
+ printf_filtered ("Please answer %s or %s.\n",
+ y_string, n_string);
+ }
+
+ if (annotation_level > 1)
+ printf_filtered ("\n\032\032post-%cquery\n", defchar);
+ return retval;
+}
+\f
+
+/* Ask user a y-or-n question and return 0 if answer is no, 1 if
+ answer is yes, or 0 if answer is defaulted.
+ Takes three args which are given to printf to print the question.
+ The first, a control string, should end in "? ".
+ It should not say how to answer, because we do that. */
+
+int
+nquery (const char *ctlstr, ...)
+{
+ va_list args;
+
+ va_start (args, ctlstr);
+ return defaulted_query (ctlstr, 'n', args);
+ va_end (args);
+}
+
+/* Ask user a y-or-n question and return 0 if answer is no, 1 if
+ answer is yes, or 1 if answer is defaulted.
+ Takes three args which are given to printf to print the question.
+ The first, a control string, should end in "? ".
+ It should not say how to answer, because we do that. */
+
+int
+yquery (const char *ctlstr, ...)
+{
+ va_list args;
+
+ va_start (args, ctlstr);
+ return defaulted_query (ctlstr, 'y', args);
+ va_end (args);
+}
+
/* Print an error message saying that we couldn't make sense of a
\^mumble sequence in a string or character constant. START and END
indicate a substring of some larger string that contains the
if (!tui_get_command_dimension (&chars_per_line, &lines_per_page))
#endif
{
-#if defined(__GO32__)
- lines_per_page = ScreenRows ();
- chars_per_line = ScreenCols ();
-#else
int rows, cols;
+#if defined(__GO32__)
+ rows = ScreenRows ();
+ cols = ScreenCols ();
+ lines_per_page = rows;
+ chars_per_line = cols;
+#else
/* Make sure Readline has initialized its terminal settings. */
rl_reset_terminal (NULL);
/* If the output is not a terminal, don't paginate it. */
if (!ui_file_isatty (gdb_stdout))
lines_per_page = UINT_MAX;
- }
#endif
+ }
set_screen_size ();
set_width ();
projects / deliverable / binutils-gdb.git / blobdiff