/* Print values for GNU debugger GDB.
- Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
- 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 1986-2012 Free Software Foundation, Inc.
This file is part of GDB.
#include "target.h"
#include "breakpoint.h"
#include "demangle.h"
+#include "gdb-demangle.h"
#include "valprint.h"
#include "annotate.h"
#include "symfile.h" /* for overlay functions */
#include "parser-defs.h"
#include "charset.h"
#include "arch-utils.h"
+#include "cli/cli-utils.h"
#ifdef TUI
-#include "tui/tui.h" /* For tui_active et.al. */
+#include "tui/tui.h" /* For tui_active et al. */
#endif
#if defined(__MINGW32__) && !defined(PRINTF_HAS_LONG_LONG)
# define USE_PRINTF_I64 0
#endif
-extern int asm_demangle; /* Whether to demangle syms in asm printouts */
-
struct format_data
{
int count;
show_max_symbolic_offset (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
- fprintf_filtered (file, _("\
-The largest offset that will be printed in <symbol+1234> form is %s.\n"),
+ fprintf_filtered (file,
+ _("The largest offset that will be "
+ "printed in <symbol+1234> form is %s.\n"),
value);
}
show_print_symbol_filename (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
- fprintf_filtered (file, _("\
-Printing of source filename and line number with <symbol> is %s.\n"),
+ fprintf_filtered (file, _("Printing of source filename and "
+ "line number with <symbol> is %s.\n"),
value);
}
/* Number of auto-display expression currently being displayed.
- So that we can disable it if we get an error or a signal within it.
+ So that we can disable it if we get a signal within it.
-1 when not doing one. */
int current_display_number;
/* Program space associated with `block'. */
struct program_space *pspace;
- /* Innermost block required by this expression when evaluated */
+ /* Innermost block required by this expression when evaluated. */
struct block *block;
- /* Status of this display (enabled or disabled) */
+ /* Status of this display (enabled or disabled). */
int enabled_p;
};
static int display_number;
-/* Prototypes for exported functions. */
+/* Walk the following statement or block through all displays.
+ ALL_DISPLAYS_SAFE does so even if the statement deletes the current
+ display. */
+
+#define ALL_DISPLAYS(B) \
+ for (B = display_chain; B; B = B->next)
+
+#define ALL_DISPLAYS_SAFE(B,TMP) \
+ for (B = display_chain; \
+ B ? (TMP = B->next, 1): 0; \
+ B = TMP)
+
+/* Prototypes for exported functions. */
void output_command (char *, int);
void _initialize_printcmd (void);
-/* Prototypes for local functions. */
+/* Prototypes for local functions. */
static void do_one_display (struct display *);
\f
val.size = osize ? 'b' : osize;
break;
case 's':
- /* Display strings with byte size chars unless explicitly specified. */
+ /* Display strings with byte size chars unless explicitly
+ specified. */
val.size = '\0';
break;
|| TYPE_CODE (type) == TYPE_CODE_NAMESPACE)
value_print (val, stream, options);
else
- /* User specified format, so don't look to the the type to
- tell us what to do. */
- print_scalar_formatted (value_contents (val), type,
- options, size, stream);
+ /* User specified format, so don't look to the type to tell us
+ what to do. */
+ val_print_scalar_formatted (type,
+ value_contents_for_printing (val),
+ value_embedded_offset (val),
+ val,
+ options, size, stream);
}
/* Return builtin floating point type of same length as TYPE.
}
/* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR,
- according to OPTIONS and SIZE on STREAM.
- Formats s and i are not supported at this level.
-
- This is how the elements of an array or structure are printed
- with a format. */
+ according to OPTIONS and SIZE on STREAM. Formats s and i are not
+ supported at this level. */
void
print_scalar_formatted (const void *valaddr, struct type *type,
unsigned int len = TYPE_LENGTH (type);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- /* If we get here with a string format, try again without it. Go
- all the way back to the language printers, which may call us
- again. */
- if (options->format == 's')
- {
- struct value_print_options opts = *options;
- opts.format = 0;
- opts.deref_ref = 0;
- val_print (type, valaddr, 0, 0, stream, 0, NULL, &opts,
- current_language);
- return;
- }
+ /* String printing should go through val_print_scalar_formatted. */
+ gdb_assert (options->format != 's');
if (len > sizeof(LONGEST) &&
(TYPE_CODE (type) == TYPE_CODE_INT
if (*cp == '\0')
cp--;
}
- strcpy (buf, cp);
+ strncpy (buf, cp, sizeof (bits));
fputs_filtered (buf, stream);
}
break;
}
/* Given an address ADDR return all the elements needed to print the
- address in a symbolic form. NAME can be mangled or not depending
+ address in a symbolic form. NAME can be mangled or not depending
on DO_DEMANGLE (and also on the asm_demangle global variable,
- manipulated via ''set print asm-demangle''). Return 0 in case of
- success, when all the info in the OUT paramters is valid. Return 1
- otherwise. */
+ manipulated via ''set print asm-demangle''). Return 0 in case of
+ success, when all the info in the OUT paramters is valid. Return 1
+ otherwise. */
int
build_address_symbolic (struct gdbarch *gdbarch,
CORE_ADDR addr, /* IN */
struct symbol *symbol;
CORE_ADDR name_location = 0;
struct obj_section *section = NULL;
- char *name_temp = "";
+ const char *name_temp = "";
/* Let's say it is mapped (not unmapped). */
*unmapped = 0;
CORE_ADDR pc;
frame = get_selected_frame (NULL);
- pc = get_frame_pc (frame);
-
- if (pc == addr)
+ if (get_frame_pc_if_available (frame, &pc) && pc == addr)
return "=> ";
}
return " ";
else
{
if (size != '\0' && size != 'b')
- warning (_("Unable to display strings with size '%c', using 'b' \
-instead."), size);
+ warning (_("Unable to display strings with "
+ "size '%c', using 'b' instead."), size);
size = 'b';
val_type = builtin_type (next_gdbarch)->builtin_int8;
}
the address stored in LAST_EXAMINE_VALUE. FIXME: Should
the disassembler be modified so that LAST_EXAMINE_VALUE
is left with the byte sequence from the last complete
- instruction fetched from memory? */
+ instruction fetched from memory? */
last_examine_value = value_at_lazy (val_type, next_address);
if (last_examine_value)
struct obj_section *section;
CORE_ADDR load_addr, context_pc = 0;
int is_a_field_of_this; /* C++: lookup_symbol sets this to nonzero
- if exp is a field of `this'. */
+ if exp is a field of `this'. */
if (exp == 0)
error (_("Argument required."));
Unfortunately DWARF 2 stores the frame-base (instead of the
function) location in a function's symbol. Oops! For the
moment enable this when/where applicable. */
- SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, context_pc, gdb_stdout);
+ SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, context_pc,
+ gdb_stdout);
break;
case LOC_REGISTER:
last_size = fmt.size;
last_format = fmt.format;
- /* Set a couple of internal variables if appropriate. */
+ /* Set a couple of internal variables if appropriate. */
if (last_examine_value)
{
/* Make last address examined available to the user as $_. Use
}
}
-/* Delete the auto-display number NUM. */
+/* Delete the auto-display DISPLAY. */
static void
-delete_display (int num)
+delete_display (struct display *display)
{
- struct display *d1, *d;
+ struct display *d;
- if (!display_chain)
- error (_("No display number %d."), num);
+ gdb_assert (display != NULL);
- if (display_chain->number == num)
- {
- d1 = display_chain;
- display_chain = d1->next;
- free_display (d1);
- }
- else
- for (d = display_chain;; d = d->next)
+ if (display_chain == display)
+ display_chain = display->next;
+
+ ALL_DISPLAYS (d)
+ if (d->next == display)
{
- if (d->next == 0)
- error (_("No display number %d."), num);
- if (d->next->number == num)
- {
- d1 = d->next;
- d->next = d1->next;
- free_display (d1);
- break;
- }
+ d->next = display->next;
+ break;
}
+
+ free_display (display);
}
-/* Delete some values from the auto-display chain.
- Specify the element numbers. */
+/* Call FUNCTION on each of the displays whose numbers are given in
+ ARGS. DATA is passed unmodified to FUNCTION. */
+
+static void
+map_display_numbers (char *args,
+ void (*function) (struct display *,
+ void *),
+ void *data)
+{
+ struct get_number_or_range_state state;
+ struct display *b, *tmp;
+ int num;
+
+ if (args == NULL)
+ error_no_arg (_("one or more display numbers"));
+
+ init_number_or_range (&state, args);
+
+ while (!state.finished)
+ {
+ char *p = state.string;
+
+ num = get_number_or_range (&state);
+ if (num == 0)
+ warning (_("bad display number at or near '%s'"), p);
+ else
+ {
+ struct display *d, *tmp;
+
+ ALL_DISPLAYS_SAFE (d, tmp)
+ if (d->number == num)
+ break;
+ if (d == NULL)
+ printf_unfiltered (_("No display number %d.\n"), num);
+ else
+ function (d, data);
+ }
+ }
+}
+
+/* Callback for map_display_numbers, that deletes a display. */
+
+static void
+do_delete_display (struct display *d, void *data)
+{
+ delete_display (d);
+}
+
+/* "undisplay" command. */
static void
undisplay_command (char *args, int from_tty)
{
- char *p = args;
- char *p1;
int num;
+ struct get_number_or_range_state state;
- if (args == 0)
+ if (args == NULL)
{
if (query (_("Delete all auto-display expressions? ")))
clear_displays ();
return;
}
- while (*p)
- {
- p1 = p;
- while (*p1 >= '0' && *p1 <= '9')
- p1++;
- if (*p1 && *p1 != ' ' && *p1 != '\t')
- error (_("Arguments must be display numbers."));
-
- num = atoi (p);
-
- delete_display (num);
-
- p = p1;
- while (*p == ' ' || *p == '\t')
- p++;
- }
+ map_display_numbers (args, do_delete_display, NULL);
dont_repeat ();
}
/* Display a single auto-display.
Do nothing if the display cannot be printed in the current context,
- or if the display is disabled. */
+ or if the display is disabled. */
static void
do_one_display (struct display *d)
{
+ struct cleanup *old_chain;
int within_current_scope;
if (d->enabled_p == 0)
if (!within_current_scope)
return;
+ old_chain = make_cleanup_restore_integer (¤t_display_number);
current_display_number = d->number;
annotate_display_begin ();
printf_filtered (": ");
if (d->format.size)
{
- CORE_ADDR addr;
- struct value *val;
+ volatile struct gdb_exception ex;
annotate_display_format ();
else
printf_filtered (" ");
- val = evaluate_expression (d->exp);
- addr = value_as_address (val);
- if (d->format.format == 'i')
- addr = gdbarch_addr_bits_remove (d->exp->gdbarch, addr);
-
annotate_display_value ();
- do_examine (d->format, d->exp->gdbarch, addr);
+ TRY_CATCH (ex, RETURN_MASK_ERROR)
+ {
+ struct value *val;
+ CORE_ADDR addr;
+
+ val = evaluate_expression (d->exp);
+ addr = value_as_address (val);
+ if (d->format.format == 'i')
+ addr = gdbarch_addr_bits_remove (d->exp->gdbarch, addr);
+ do_examine (d->format, d->exp->gdbarch, addr);
+ }
+ if (ex.reason < 0)
+ fprintf_filtered (gdb_stdout, _("<error: %s>\n"), ex.message);
}
else
{
struct value_print_options opts;
+ volatile struct gdb_exception ex;
annotate_display_format ();
get_formatted_print_options (&opts, d->format.format);
opts.raw = d->format.raw;
- print_formatted (evaluate_expression (d->exp),
- d->format.size, &opts, gdb_stdout);
+
+ TRY_CATCH (ex, RETURN_MASK_ERROR)
+ {
+ struct value *val;
+
+ val = evaluate_expression (d->exp);
+ print_formatted (val, d->format.size, &opts, gdb_stdout);
+ }
+ if (ex.reason < 0)
+ fprintf_filtered (gdb_stdout, _("<error: %s>"), ex.message);
printf_filtered ("\n");
}
annotate_display_end ();
gdb_flush (gdb_stdout);
- current_display_number = -1;
+ do_cleanups (old_chain);
}
/* Display all of the values on the auto-display chain which can be
if (current_display_number >= 0)
{
disable_display (current_display_number);
- fprintf_unfiltered (gdb_stderr, _("\
-Disabling display %d to avoid infinite recursion.\n"),
+ fprintf_unfiltered (gdb_stderr,
+ _("Disabling display %d to "
+ "avoid infinite recursion.\n"),
current_display_number);
}
current_display_number = -1;
}
}
+/* Callback fo map_display_numbers, that enables or disables the
+ passed in display D. */
+
static void
-enable_display (char *args, int from_tty)
+do_enable_disable_display (struct display *d, void *data)
{
- char *p = args;
- char *p1;
- int num;
- struct display *d;
+ d->enabled_p = *(int *) data;
+}
- if (p == 0)
+/* Implamentation of both the "disable display" and "enable display"
+ commands. ENABLE decides what to do. */
+
+static void
+enable_disable_display_command (char *args, int from_tty, int enable)
+{
+ if (args == NULL)
{
- for (d = display_chain; d; d = d->next)
- d->enabled_p = 1;
- }
- else
- while (*p)
- {
- p1 = p;
- while (*p1 >= '0' && *p1 <= '9')
- p1++;
- if (*p1 && *p1 != ' ' && *p1 != '\t')
- error (_("Arguments must be display numbers."));
+ struct display *d;
- num = atoi (p);
+ ALL_DISPLAYS (d)
+ d->enabled_p = enable;
+ return;
+ }
- for (d = display_chain; d; d = d->next)
- if (d->number == num)
- {
- d->enabled_p = 1;
- goto win;
- }
- printf_unfiltered (_("No display number %d.\n"), num);
- win:
- p = p1;
- while (*p == ' ' || *p == '\t')
- p++;
- }
+ map_display_numbers (args, do_enable_disable_display, &enable);
}
+/* The "enable display" command. */
+
static void
-disable_display_command (char *args, int from_tty)
+enable_display_command (char *args, int from_tty)
{
- char *p = args;
- char *p1;
- struct display *d;
-
- if (p == 0)
- {
- for (d = display_chain; d; d = d->next)
- d->enabled_p = 0;
- }
- else
- while (*p)
- {
- p1 = p;
- while (*p1 >= '0' && *p1 <= '9')
- p1++;
- if (*p1 && *p1 != ' ' && *p1 != '\t')
- error (_("Arguments must be display numbers."));
+ enable_disable_display_command (args, from_tty, 1);
+}
- disable_display (atoi (p));
+/* The "disable display" command. */
- p = p1;
- while (*p == ' ' || *p == '\t')
- p++;
- }
+static void
+disable_display_command (char *args, int from_tty)
+{
+ enable_disable_display_command (args, from_tty, 0);
}
/* display_chain items point to blocks and expressions. Some expressions in
val = read_var_value (var, frame);
get_user_print_options (&opts);
+ opts.deref_ref = 1;
common_val_print (val, stream, indent, &opts, current_language);
}
if (except.reason < 0)
if (s == 0)
error_no_arg (_("format-control string and values to print"));
- /* Skip white space before format string */
- while (*s == ' ' || *s == '\t')
- s++;
+ s = skip_spaces (s);
/* A format string should follow, enveloped in double quotes. */
if (*s++ != '"')
*f++ = '"';
break;
default:
- /* ??? TODO: handle other escape sequences */
+ /* ??? TODO: handle other escape sequences. */
error (_("Unrecognized escape character \\%c in format string."),
c);
}
/* Skip over " and following space and comma. */
s++;
*f++ = '\0';
- while (*s == ' ' || *s == '\t')
- s++;
+ s = skip_spaces (s);
if (*s != ',' && *s != 0)
error (_("Invalid argument syntax"));
if (*s == ',')
s++;
- while (*s == ' ' || *s == '\t')
- s++;
+ s = skip_spaces (s);
/* Need extra space for the '\0's. Doubling the size is sufficient. */
substrings = alloca (strlen (string) * 2);
}
if (bad)
- error (_("Inappropriate modifiers to format specifier '%c' in printf"),
+ error (_("Inappropriate modifiers to "
+ "format specifier '%c' in printf"),
*f);
f++;
With no argument, display all currently requested auto-display expressions.\n\
Use \"undisplay\" to cancel display requests previously made."));
- add_cmd ("display", class_vars, enable_display, _("\
+ add_cmd ("display", class_vars, enable_display_command, _("\
Enable some expressions to be displayed when program stops.\n\
Arguments are the code numbers of the expressions to resume displaying.\n\
No argument means enable all automatic-display expressions.\n\
\nWith a subcommand, this command modifies parts of the gdb environment.\n\
You can see these environment settings with the \"show\" command."));
- /* "call" is the same as "set", but handy for dbx users to call fns. */
+ /* "call" is the same as "set", but handy for dbx users to call fns. */
c = add_com ("call", class_vars, call_command, _("\
Call a function in the program.\n\
The argument is the function name and arguments, in the notation of the\n\
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