/* Cache and manage frames for GDB, the GNU debugger.
- Copyright 1986, 1987, 1989, 1991, 1994, 1995, 1996, 1998, 2000,
+ Copyright (C) 1986, 1987, 1989, 1991, 1994, 1995, 1996, 1998, 2000,
2001, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of GDB.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
#include "defs.h"
#include "frame.h"
/* Flag to control debugging. */
static int frame_debug;
+static void
+show_frame_debug (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("Frame debugging is %s.\n"), value);
+}
/* Flag to indicate whether backtraces should stop at main et.al. */
static int backtrace_past_main;
+static void
+show_backtrace_past_main (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("\
+Whether backtraces should continue past \"main\" is %s.\n"),
+ value);
+}
+
static int backtrace_past_entry;
-static unsigned int backtrace_limit = UINT_MAX;
+static void
+show_backtrace_past_entry (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("\
+Whether backtraces should continue past the entry point of a program is %s.\n"),
+ value);
+}
+
+static int backtrace_limit = INT_MAX;
+static void
+show_backtrace_limit (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("\
+An upper bound on the number of backtrace levels is %s.\n"),
+ value);
+}
+
static void
fprint_field (struct ui_file *file, const char *name, int p, CORE_ADDR addr)
}
static int
-do_frame_register_read (void *src, int regnum, void *buf)
+do_frame_register_read (void *src, int regnum, gdb_byte *buf)
{
frame_register_read (src, regnum, buf);
return 1;
void
frame_register_unwind (struct frame_info *frame, int regnum,
int *optimizedp, enum lval_type *lvalp,
- CORE_ADDR *addrp, int *realnump, void *bufferp)
+ CORE_ADDR *addrp, int *realnump, gdb_byte *bufferp)
{
struct frame_unwind_cache *cache;
void
frame_register (struct frame_info *frame, int regnum,
int *optimizedp, enum lval_type *lvalp,
- CORE_ADDR *addrp, int *realnump, void *bufferp)
+ CORE_ADDR *addrp, int *realnump, gdb_byte *bufferp)
{
/* Require all but BUFFERP to be valid. A NULL BUFFERP indicates
that the value proper does not need to be fetched. */
}
void
-frame_unwind_register (struct frame_info *frame, int regnum, void *buf)
+frame_unwind_register (struct frame_info *frame, int regnum, gdb_byte *buf)
{
int optimized;
CORE_ADDR addr;
void
get_frame_register (struct frame_info *frame,
- int regnum, void *buf)
+ int regnum, gdb_byte *buf)
{
frame_unwind_register (frame->next, regnum, buf);
}
LONGEST
frame_unwind_register_signed (struct frame_info *frame, int regnum)
{
- char buf[MAX_REGISTER_SIZE];
+ gdb_byte buf[MAX_REGISTER_SIZE];
frame_unwind_register (frame, regnum, buf);
return extract_signed_integer (buf, register_size (get_frame_arch (frame),
regnum));
ULONGEST
frame_unwind_register_unsigned (struct frame_info *frame, int regnum)
{
- char buf[MAX_REGISTER_SIZE];
+ gdb_byte buf[MAX_REGISTER_SIZE];
frame_unwind_register (frame, regnum, buf);
return extract_unsigned_integer (buf, register_size (get_frame_arch (frame),
regnum));
frame_unwind_unsigned_register (struct frame_info *frame, int regnum,
ULONGEST *val)
{
- char buf[MAX_REGISTER_SIZE];
+ gdb_byte buf[MAX_REGISTER_SIZE];
frame_unwind_register (frame, regnum, buf);
(*val) = extract_unsigned_integer (buf,
register_size (get_frame_arch (frame),
}
void
-put_frame_register (struct frame_info *frame, int regnum, const void *buf)
+put_frame_register (struct frame_info *frame, int regnum,
+ const gdb_byte *buf)
{
struct gdbarch *gdbarch = get_frame_arch (frame);
int realnum;
{
/* FIXME: write_memory doesn't yet take constant buffers.
Arrrg! */
- char tmp[MAX_REGISTER_SIZE];
+ gdb_byte tmp[MAX_REGISTER_SIZE];
memcpy (tmp, buf, register_size (gdbarch, regnum));
write_memory (addr, tmp, register_size (gdbarch, regnum));
break;
Returns 0 if the register value could not be found. */
int
-frame_register_read (struct frame_info *frame, int regnum, void *myaddr)
+frame_register_read (struct frame_info *frame, int regnum,
+ gdb_byte *myaddr)
{
int optimized;
enum lval_type lval;
return NULL;
}
- if (this_frame->level > backtrace_limit)
+ /* If the user's backtrace limit has been exceeded, stop. We must
+ add two to the current level; one of those accounts for backtrace_limit
+ being 1-based and the level being 0-based, and the other accounts for
+ the level of the new frame instead of the level of the current
+ frame. */
+ if (this_frame->level + 2 > backtrace_limit)
{
- error (_("Backtrace limit of %d exceeded"), backtrace_limit);
+ frame_debug_got_null_frame (gdb_stdlog, this_frame,
+ "backtrace limit exceeded");
+ return NULL;
}
/* If we're already inside the entry function for the main objfile,
/* Memory access methods. */
void
-get_frame_memory (struct frame_info *this_frame, CORE_ADDR addr, void *buf,
- int len)
+get_frame_memory (struct frame_info *this_frame, CORE_ADDR addr,
+ gdb_byte *buf, int len)
{
read_memory (addr, buf, len);
}
int
safe_frame_unwind_memory (struct frame_info *this_frame,
- CORE_ADDR addr, void *buf, int len)
+ CORE_ADDR addr, gdb_byte *buf, int len)
{
/* NOTE: deprecated_read_memory_nobpt returns zero on success! */
return !deprecated_read_memory_nobpt (addr, buf, len);
observer_attach_target_changed (frame_observer_target_changed);
- add_prefix_cmd ("backtrace", class_maintenance, set_backtrace_cmd, "\
+ add_prefix_cmd ("backtrace", class_maintenance, set_backtrace_cmd, _("\
Set backtrace specific variables.\n\
-Configure backtrace variables such as the backtrace limit",
+Configure backtrace variables such as the backtrace limit"),
&set_backtrace_cmdlist, "set backtrace ",
0/*allow-unknown*/, &setlist);
- add_prefix_cmd ("backtrace", class_maintenance, show_backtrace_cmd, "\
+ add_prefix_cmd ("backtrace", class_maintenance, show_backtrace_cmd, _("\
Show backtrace specific variables\n\
-Show backtrace variables such as the backtrace limit",
+Show backtrace variables such as the backtrace limit"),
&show_backtrace_cmdlist, "show backtrace ",
0/*allow-unknown*/, &showlist);
Normally the caller of \"main\" is not of interest, so GDB will terminate\n\
the backtrace at \"main\". Set this variable if you need to see the rest\n\
of the stack trace."),
- NULL, /* FIXME: i18n: Whether backtraces should continue past \"main\" is %s. */
- NULL, NULL, &set_backtrace_cmdlist,
+ NULL,
+ show_backtrace_past_main,
+ &set_backtrace_cmdlist,
&show_backtrace_cmdlist);
add_setshow_boolean_cmd ("past-entry", class_obscure,
Normally there are no callers beyond the entry point of a program, so GDB\n\
will terminate the backtrace there. Set this variable if you need to see \n\
the rest of the stack trace."),
- NULL, /* FIXME: i18n: Whether backtraces should continue past the entry point is %s. */
- NULL, NULL, &set_backtrace_cmdlist,
+ NULL,
+ show_backtrace_past_entry,
+ &set_backtrace_cmdlist,
&show_backtrace_cmdlist);
- add_setshow_uinteger_cmd ("limit", class_obscure,
- &backtrace_limit, _("\
+ add_setshow_integer_cmd ("limit", class_obscure,
+ &backtrace_limit, _("\
Set an upper bound on the number of backtrace levels."), _("\
Show the upper bound on the number of backtrace levels."), _("\
No more than the specified number of frames can be displayed or examined.\n\
Zero is unlimited."),
- NULL, /* FIXME: i18n: An upper bound on the number of backtrace levels is %s. */
- NULL, NULL, &set_backtrace_cmdlist,
- &show_backtrace_cmdlist);
+ NULL,
+ show_backtrace_limit,
+ &set_backtrace_cmdlist,
+ &show_backtrace_cmdlist);
/* Debug this files internals. */
- deprecated_add_show_from_set
- (add_set_cmd ("frame", class_maintenance, var_zinteger,
- &frame_debug, "Set frame debugging.\n\
-When non-zero, frame specific internal debugging is enabled.", &setdebuglist),
- &showdebuglist);
+ add_setshow_zinteger_cmd ("frame", class_maintenance, &frame_debug, _("\
+Set frame debugging."), _("\
+Show frame debugging."), _("\
+When non-zero, frame specific internal debugging is enabled."),
+ NULL,
+ show_frame_debug,
+ &setdebuglist, &showdebuglist);
}