/* 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 "charset.h"
#include "annotate.h"
#include "filenames.h"
+#include "symfile.h"
#include "inferior.h" /* for signed_pointer_to_address */
#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 */
/* readline defines this. */
#undef savestring
-void (*error_begin_hook) (void);
+void (*deprecated_error_begin_hook) (void);
/* Holds the last error message issued by gdb */
static void fputs_maybe_filtered (const char *, struct ui_file *, int);
-#if defined (USE_MMALLOC) && !defined (NO_MMCHECK)
-static void malloc_botch (void);
-#endif
+static void do_my_cleanups (struct cleanup **, struct cleanup *);
static void prompt_for_continue (void);
return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg);
}
+static void
+do_free_section_addr_info (void *arg)
+{
+ free_section_addr_info (arg);
+}
+
+struct cleanup *
+make_cleanup_free_section_addr_info (struct section_addr_info *addrs)
+{
+ return make_my_cleanup (&cleanup_chain, do_free_section_addr_info, addrs);
+}
+
+
struct cleanup *
make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function,
void *arg)
do_my_cleanups (&exec_error_cleanup_chain, old_chain);
}
-void
+static void
do_my_cleanups (struct cleanup **pmy_chain,
struct cleanup *old_chain)
{
In such cases, we may not be certain where the first cleanup is, unless
we have a do-nothing one to always use as the base. */
-/* ARGSUSED */
void
null_cleanup (void *arg)
{
void
vwarning (const char *string, va_list args)
{
- if (warning_hook)
- (*warning_hook) (string, args);
+ if (deprecated_warning_hook)
+ (*deprecated_warning_hook) (string, args);
else
{
target_terminal_ours ();
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)
{
- if (error_begin_hook)
- error_begin_hook ();
+ if (deprecated_error_begin_hook)
+ deprecated_error_begin_hook ();
/* Copy the stream into the GDB_LASTERR buffer. */
ui_file_rewind (gdb_lasterr);
so that the user knows that they are living on the edge. */
{
char *msg;
- xvasprintf (&msg, fmt, ap);
- xasprintf (&reason, "\
+ msg = xstrvprintf (fmt, ap);
+ reason = xstrprintf ("\
%s:%d: %s: %s\n\
A problem internal to GDB has been detected,\n\
further debugging may prove unreliable.", file, line, problem->name, msg);
}
static struct internal_problem internal_warning_problem = {
- "internal-error", AUTO_BOOLEAN_AUTO, AUTO_BOOLEAN_AUTO
+ "internal-warning", AUTO_BOOLEAN_AUTO, AUTO_BOOLEAN_AUTO
};
void
request_quit (int signo)
{
quit_flag = 1;
- /* Restore the signal handler. Harmless with BSD-style signals, needed
- for System V-style signals. So just always do it, rather than worrying
- about USG defines and stuff like that. */
+ /* Restore the signal handler. Harmless with BSD-style signals,
+ needed for System V-style signals. */
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)
-{
- return malloc (size); /* NOTE: GDB's only call to malloc() */
-}
-
-static void *
-mrealloc (void *md, void *ptr, size_t size)
-{
- if (ptr == 0) /* Guard against old realloc's */
- return mmalloc (md, size);
- else
- return realloc (ptr, size); /* NOTE: GDB's only call to ralloc() */
-}
-
-static void *
-mcalloc (void *md, size_t number, size_t size)
-{
- return calloc (number, size); /* NOTE: GDB's only call to calloc() */
-}
-
-static void
-mfree (void *md, void *ptr)
-{
- 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
-
-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. */
}
}
-/* The xmmalloc() family of memory management routines.
+/* The xmalloc() (libiberty.h) family of memory management routines.
- These are are like the mmalloc() family except that they implement
+ These are like the ISO-C malloc() family except that they implement
consistent semantics and guard against typical memory management
- problems: if a malloc fails, an internal error is thrown; if
- free(NULL) is called, it is ignored; if *alloc(0) is called, NULL
- is returned.
+ problems. */
- All these routines are implemented using the mmalloc() family. */
+/* NOTE: These are declared using PTR to ensure consistency with
+ "libiberty.h". xfree() is GDB local. */
-void *
-xmmalloc (void *md, size_t size)
+PTR /* OK: PTR */
+xmalloc (size_t size)
{
void *val;
if (size == 0)
size = 1;
- val = mmalloc (md, size);
+ val = malloc (size); /* OK: malloc */
if (val == NULL)
nomem (size);
return (val);
}
-void *
-xmrealloc (void *md, void *ptr, size_t size)
+PTR /* OK: PTR */
+xrealloc (PTR ptr, size_t size) /* OK: PTR */
{
void *val;
size = 1;
if (ptr != NULL)
- val = mrealloc (md, ptr, size);
+ val = realloc (ptr, size); /* OK: realloc */
else
- val = mmalloc (md, size);
+ val = malloc (size); /* OK: malloc */
if (val == NULL)
nomem (size);
return (val);
}
-void *
-xmcalloc (void *md, size_t number, size_t size)
+PTR /* OK: PTR */
+xcalloc (size_t number, size_t size)
{
void *mem;
size = 1;
}
- mem = mcalloc (md, number, size);
+ mem = calloc (number, size); /* OK: xcalloc */
if (mem == NULL)
nomem (number * size);
return mem;
}
-void
-xmfree (void *md, void *ptr)
-{
- if (ptr != NULL)
- mfree (md, ptr);
-}
-
-/* The xmalloc() (libiberty.h) family of memory management routines.
-
- These are like the ISO-C malloc() family except that they implement
- consistent semantics and guard against typical memory management
- problems. See xmmalloc() above for further information.
-
- All these routines are wrappers to the xmmalloc() family. */
-
-/* NOTE: These are declared using PTR to ensure consistency with
- "libiberty.h". xfree() is GDB local. */
-
-PTR /* OK: PTR */
-xmalloc (size_t size)
-{
- return xmmalloc (NULL, size);
-}
-
-PTR /* OK: PTR */
-xrealloc (PTR ptr, size_t size) /* OK: PTR */
-{
- return xmrealloc (NULL, ptr, size);
-}
-
-PTR /* OK: PTR */
-xcalloc (size_t number, size_t size)
-{
- return xmcalloc (NULL, number, size);
-}
-
void
xfree (void *ptr)
{
- xmfree (NULL, ptr);
+ if (ptr != NULL)
+ free (ptr); /* OK: free */
}
\f
char *ret;
va_list args;
va_start (args, format);
- xvasprintf (&ret, format, args);
+ ret = xstrvprintf (format, args);
va_end (args);
return ret;
}
{
va_list args;
va_start (args, format);
- xvasprintf (ret, format, args);
+ (*ret) = xstrvprintf (format, args);
va_end (args);
}
void
xvasprintf (char **ret, const char *format, va_list ap)
{
- int status = vasprintf (ret, format, ap);
- /* NULL could be returned due to a memory allocation problem; a
- badly format string; or something else. */
- if ((*ret) == NULL)
- internal_error (__FILE__, __LINE__,
- "vasprintf returned NULL buffer (errno %d)", errno);
- /* A negative status with a non-NULL buffer shouldn't never
- happen. But to be sure. */
+ (*ret) = xstrvprintf (format, ap);
+}
+
+char *
+xstrvprintf (const char *format, va_list ap)
+{
+ char *ret = NULL;
+ int status = vasprintf (&ret, format, ap);
+ /* NULL is returned when there was a memory allocation problem. */
+ if (ret == NULL)
+ nomem (0);
+ /* A negative status (the printed length) with a non-NULL buffer
+ should never happen, but just to be sure. */
if (status < 0)
internal_error (__FILE__, __LINE__,
"vasprintf call failed (errno %d)", errno);
+ return ret;
}
-
/* My replacement for the read system call.
Used like `read' but keeps going if `read' returns too soon. */
char *
msavestring (void *md, const char *ptr, size_t size)
{
- char *p = (char *) xmmalloc (md, size + 1);
+ char *p = (char *) xmalloc (size + 1);
memcpy (p, ptr, size);
p[size] = 0;
return p;
int ans2;
int retval;
- va_start (args, ctlstr);
-
- if (query_hook)
+ if (deprecated_query_hook)
{
- return query_hook (ctlstr, args);
+ va_start (args, ctlstr);
+ return deprecated_query_hook (ctlstr, args);
}
/* Automatically answer "yes" if input is not from a terminal. */
if (annotation_level > 1)
printf_filtered ("\n\032\032pre-query\n");
+ va_start (args, ctlstr);
vfprintf_filtered (gdb_stdout, ctlstr, args);
+ va_end (args);
printf_filtered ("(y or n) ");
if (annotation_level > 1)
}
\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 (deprecated_query_hook)
+ {
+ return deprecated_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-query\n");
+
+ vfprintf_filtered (gdb_stdout, ctlstr, args);
+ printf_filtered ("(%s or %s) ", y_string, n_string);
+
+ if (annotation_level > 1)
+ printf_filtered ("\n\032\032query\n");
+
+ 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-query\n");
+ 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 ();
wrap_pointer = wrap_buffer; /* Start it at the beginning. */
}
-/* ARGSUSED */
static void
set_width_command (char *args, int from_tty, struct cmd_list_element *c)
{
set_width ();
}
-/* ARGSUSED */
static void
set_height_command (char *args, int from_tty, struct cmd_list_element *c)
{
char *linebuffer;
struct cleanup *old_cleanups;
- xvasprintf (&linebuffer, format, args);
+ linebuffer = xstrvprintf (format, args);
old_cleanups = make_cleanup (xfree, linebuffer);
fputs_maybe_filtered (linebuffer, stream, filter);
do_cleanups (old_cleanups);
char *linebuffer;
struct cleanup *old_cleanups;
- xvasprintf (&linebuffer, format, args);
+ linebuffer = xstrvprintf (format, args);
old_cleanups = make_cleanup (xfree, linebuffer);
fputs_unfiltered (linebuffer, stream);
do_cleanups (old_cleanups);
c = add_set_cmd ("width", class_support, var_uinteger, &chars_per_line,
"Set number of characters gdb thinks are in a line.",
&setlist);
- add_show_from_set (c, &showlist);
+ deprecated_add_show_from_set (c, &showlist);
set_cmd_sfunc (c, set_width_command);
c = add_set_cmd ("height", class_support, var_uinteger, &lines_per_page,
"Set number of lines gdb thinks are in a page.", &setlist);
- add_show_from_set (c, &showlist);
+ deprecated_add_show_from_set (c, &showlist);
set_cmd_sfunc (c, set_height_command);
init_page_info ();
- add_show_from_set
+ deprecated_add_show_from_set
(add_set_cmd ("demangle", class_support, var_boolean,
(char *) &demangle,
"Set demangling of encoded C++/ObjC names when displaying symbols.",
&setprintlist), &showprintlist);
- add_show_from_set
+ deprecated_add_show_from_set
(add_set_cmd ("pagination", class_support,
var_boolean, (char *) &pagination_enabled,
"Set state of pagination.", &setlist), &showlist);
"Disable pagination");
}
- add_show_from_set
+ deprecated_add_show_from_set
(add_set_cmd ("sevenbit-strings", class_support, var_boolean,
(char *) &sevenbit_strings,
"Set printing of 8-bit characters in strings as \\nnn.",
&setprintlist), &showprintlist);
- add_show_from_set
+ deprecated_add_show_from_set
(add_set_cmd ("asm-demangle", class_support, var_boolean,
(char *) &asm_demangle,
"Set demangling of C++/ObjC names in disassembly listings.",
projects / deliverable / binutils-gdb.git / blobdiff