/* Everything about breakpoints, for GDB.
- Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
- 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+ Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
+ 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
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 <ctype.h>
#include "cli/cli-script.h"
#include "gdb_assert.h"
#include "block.h"
+#include "solib.h"
#include "solist.h"
#include "observer.h"
#include "exceptions.h"
+#include "memattr.h"
+#include "ada-lang.h"
#include "gdb-events.h"
+#include "mi/mi-common.h"
/* Prototypes for local functions. */
static CORE_ADDR adjust_breakpoint_address (CORE_ADDR bpaddr,
enum bptype bptype);
-static void describe_other_breakpoints (CORE_ADDR, asection *);
+static void describe_other_breakpoints (CORE_ADDR, asection *, int);
static void breakpoints_info (char *, int);
static void ep_skip_leading_whitespace (char **s);
+static int single_step_breakpoint_inserted_here_p (CORE_ADDR pc);
+
/* Prototypes for exported functions. */
/* If FALSE, gdb will not use hardware support for watchpoints, even
if such is available. */
static int can_use_hw_watchpoints;
+static void
+show_can_use_hw_watchpoints (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c,
+ const char *value)
+{
+ fprintf_filtered (file, _("\
+Debugger's willingness to use watchpoint hardware is %s.\n"),
+ value);
+}
+
/* If AUTO_BOOLEAN_FALSE, gdb will not attempt to create pending breakpoints.
If AUTO_BOOLEAN_TRUE, gdb will automatically create pending breakpoints
for unrecognized breakpoint locations.
If AUTO_BOOLEAN_AUTO, gdb will query when breakpoints are unrecognized. */
static enum auto_boolean pending_break_support;
+static void
+show_pending_break_support (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c,
+ const char *value)
+{
+ fprintf_filtered (file, _("\
+Debugger's behavior regarding pending breakpoints is %s.\n"),
+ value);
+}
+
+/* If 1, gdb will automatically use hardware breakpoints for breakpoints
+ set with "break" but falling in read-only memory.
+ If 0, gdb will warn about such breakpoints, but won't automatically
+ use hardware breakpoints. */
+static int automatic_hardware_breakpoints;
+static void
+show_automatic_hardware_breakpoints (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c,
+ const char *value)
+{
+ fprintf_filtered (file, _("\
+Automatic usage of hardware breakpoints is %s.\n"),
+ value);
+}
+
void _initialize_breakpoint (void);
/* Pointer to current exception event record */
static struct exception_event_record *current_exception_event;
-/* Indicator of whether exception catchpoints should be nuked between
- runs of a program. */
-int deprecated_exception_catchpoints_are_fragile = 0;
-
-/* Indicator of when exception catchpoints set-up should be
- reinitialized -- e.g. when program is re-run. */
-int deprecated_exception_support_initialized = 0;
-
/* This function returns a pointer to the string representation of the
pathname of the dynamically-linked library that has just been
loaded.
Currently the string can either be a number or "$" followed by the name
of a convenience variable. Making it an expression wouldn't work well
for map_breakpoint_numbers (e.g. "4 + 5 + 6").
+
+ If the string is a NULL pointer, that denotes the last breakpoint.
TRAILER is a character which can be found after the number; most
commonly this is `-'. If you don't want a trailer, use \0. */
}
error (_("No breakpoint number %d."), bnum);
}
+
+/* Like commands_command, but instead of reading the commands from
+ input stream, takes them from an already parsed command structure.
+
+ This is used by cli-script.c to DTRT with breakpoint commands
+ that are part of if and while bodies. */
+enum command_control_type
+commands_from_control_command (char *arg, struct command_line *cmd)
+{
+ struct breakpoint *b;
+ char *p;
+ int bnum;
+
+ /* If we allowed this, we would have problems with when to
+ free the storage, if we change the commands currently
+ being read from. */
+
+ if (executing_breakpoint_commands)
+ error (_("Can't use the \"commands\" command among a breakpoint's commands."));
+
+ /* An empty string for the breakpoint number means the last
+ breakpoint, but get_number expects a NULL pointer. */
+ if (arg && !*arg)
+ p = NULL;
+ else
+ p = arg;
+ bnum = get_number (&p);
+
+ if (p && *p)
+ error (_("Unexpected extra arguments following breakpoint number."));
+
+ ALL_BREAKPOINTS (b)
+ if (b->number == bnum)
+ {
+ free_command_lines (&b->commands);
+ if (cmd->body_count != 1)
+ error (_("Invalid \"commands\" block structure."));
+ /* We need to copy the commands because if/while will free the
+ list after it finishes execution. */
+ b->commands = copy_command_lines (cmd->body_list[0]);
+ breakpoints_changed ();
+ breakpoint_modify_event (b->number);
+ return simple_control;
+ }
+ error (_("No breakpoint number %d."), bnum);
+}
\f
/* Like target_read_memory() but if breakpoints are inserted, return
the shadow contents instead of the breakpoints themselves.
shadow contents, not the breakpoints themselves. From breakpoint.c. */
int
-deprecated_read_memory_nobpt (CORE_ADDR memaddr, char *myaddr, unsigned len)
+read_memory_nobpt (CORE_ADDR memaddr, gdb_byte *myaddr, unsigned len)
{
int status;
struct bp_location *b;
CORE_ADDR bp_addr = 0;
int bp_size = 0;
- if (BREAKPOINT_FROM_PC (&bp_addr, &bp_size) == NULL)
+ if (gdbarch_breakpoint_from_pc (current_gdbarch, &bp_addr, &bp_size) == NULL)
/* No breakpoints on this machine. */
return target_read_memory (memaddr, myaddr, len);
continue;
/* Addresses and length of the part of the breakpoint that
we need to copy. */
- /* XXXX The m68k, sh and h8300 have different local and remote
- breakpoint values. BREAKPOINT_FROM_PC still manages to
- correctly determine the breakpoints memory address and size
- for these targets. */
- bp_addr = b->address;
- bp_size = 0;
- if (BREAKPOINT_FROM_PC (&bp_addr, &bp_size) == NULL)
- continue;
+ bp_addr = b->target_info.placed_address;
+ bp_size = b->target_info.shadow_len;
if (bp_size == 0)
- /* bp isn't valid */
+ /* bp isn't valid, or doesn't shadow memory. */
continue;
if (bp_addr + bp_size <= memaddr)
/* The breakpoint is entirely before the chunk of memory we
}
memcpy (myaddr + bp_addr - memaddr,
- b->shadow_contents + bptoffset, bp_size);
+ b->target_info.shadow_contents + bptoffset, bp_size);
if (bp_addr > memaddr)
{
/* Copy the section of memory before the breakpoint. */
- status = deprecated_read_memory_nobpt (memaddr, myaddr, bp_addr - memaddr);
+ status = read_memory_nobpt (memaddr, myaddr, bp_addr - memaddr);
if (status != 0)
return status;
}
if (bp_addr + bp_size < memaddr + len)
{
/* Copy the section of memory after the breakpoint. */
- status = deprecated_read_memory_nobpt (bp_addr + bp_size,
+ status = read_memory_nobpt (bp_addr + bp_size,
myaddr + bp_addr + bp_size - memaddr,
memaddr + len - (bp_addr + bp_size));
if (status != 0)
/* Helper routine: free the value chain for a breakpoint (watchpoint). */
-static void free_valchain (struct bp_location *b)
+static void
+free_valchain (struct bp_location *b)
{
struct value *v;
struct value *n;
if (bpt->inserted || bpt->duplicate)
return 0;
+ /* Initialize the target-specific information. */
+ memset (&bpt->target_info, 0, sizeof (bpt->target_info));
+ bpt->target_info.placed_address = bpt->address;
+
if (bpt->loc_type == bp_loc_software_breakpoint
|| bpt->loc_type == bp_loc_hardware_breakpoint)
{
+ if (bpt->owner->type != bp_hardware_breakpoint)
+ {
+ /* If the explicitly specified breakpoint type
+ is not hardware breakpoint, check the memory map to see
+ if the breakpoint address is in read only memory or not.
+ Two important cases are:
+ - location type is not hardware breakpoint, memory
+ is readonly. We change the type of the location to
+ hardware breakpoint.
+ - location type is hardware breakpoint, memory is read-write.
+ This means we've previously made the location hardware one, but
+ then the memory map changed, so we undo.
+
+ When breakpoints are removed, remove_breakpoints will
+ use location types we've just set here, the only possible
+ problem is that memory map has changed during running program,
+ but it's not going to work anyway with current gdb. */
+ struct mem_region *mr
+ = lookup_mem_region (bpt->target_info.placed_address);
+
+ if (mr)
+ {
+ if (automatic_hardware_breakpoints)
+ {
+ int changed = 0;
+ enum bp_loc_type new_type;
+
+ if (mr->attrib.mode != MEM_RW)
+ new_type = bp_loc_hardware_breakpoint;
+ else
+ new_type = bp_loc_software_breakpoint;
+
+ if (new_type != bpt->loc_type)
+ {
+ static int said = 0;
+ bpt->loc_type = new_type;
+ if (!said)
+ {
+ fprintf_filtered (gdb_stdout, _("\
+Note: automatically using hardware breakpoints for read-only addresses.\n"));
+ said = 1;
+ }
+ }
+ }
+ else if (bpt->loc_type == bp_loc_software_breakpoint
+ && mr->attrib.mode != MEM_RW)
+ warning (_("cannot set software breakpoint at readonly address %s"),
+ paddr (bpt->address));
+ }
+ }
+
/* First check to see if we have to handle an overlay. */
if (overlay_debugging == ovly_off
|| bpt->section == NULL
/* No overlay handling: just set the breakpoint. */
if (bpt->loc_type == bp_loc_hardware_breakpoint)
- val = target_insert_hw_breakpoint (bpt->address,
- bpt->shadow_contents);
+ val = target_insert_hw_breakpoint (&bpt->target_info);
else
- val = target_insert_breakpoint (bpt->address,
- bpt->shadow_contents);
+ val = target_insert_breakpoint (&bpt->target_info);
}
else
{
CORE_ADDR addr = overlay_unmapped_address (bpt->address,
bpt->section);
/* Set a software (trap) breakpoint at the LMA. */
- val = target_insert_breakpoint (addr, bpt->shadow_contents);
+ bpt->overlay_target_info = bpt->target_info;
+ bpt->overlay_target_info.placed_address = addr;
+ val = target_insert_breakpoint (&bpt->overlay_target_info);
if (val != 0)
fprintf_unfiltered (tmp_error_stream,
"Overlay breakpoint %d failed: in ROM?",
{
/* Yes. This overlay section is mapped into memory. */
if (bpt->loc_type == bp_loc_hardware_breakpoint)
- val = target_insert_hw_breakpoint (bpt->address,
- bpt->shadow_contents);
+ val = target_insert_hw_breakpoint (&bpt->target_info);
else
- val = target_insert_breakpoint (bpt->address,
- bpt->shadow_contents);
+ val = target_insert_breakpoint (&bpt->target_info);
}
else
{
if (val)
{
/* Can't set the breakpoint. */
+ if (
#if defined (DISABLE_UNSETTABLE_BREAK)
- if (DISABLE_UNSETTABLE_BREAK (bpt->address))
+ DISABLE_UNSETTABLE_BREAK (bpt->address)
+#else
+ solib_address (bpt->address)
+#endif
+ )
{
/* See also: disable_breakpoints_in_shlibs. */
val = 0;
"breakpoint #%d\n", bpt->owner->number);
}
else
-#endif
{
#ifdef ONE_PROCESS_WRITETEXT
*process_warning = 1;
/* FIXME drow/2003-09-09: It would be nice if evaluate_expression
took a frame parameter, so that we didn't have to change the
selected frame. */
- saved_frame_id = get_frame_id (deprecated_selected_frame);
+ saved_frame_id = get_frame_id (get_selected_frame (NULL));
/* Determine if the watchpoint is within scope. */
if (bpt->owner->exp_valid_block == NULL)
/* If we get here, we must have a callback mechanism for exception
events -- with g++ style embedded label support, we insert
ordinary breakpoints and not catchpoints. */
- val = target_insert_breakpoint (bpt->address, bpt->shadow_contents);
+ val = target_insert_breakpoint (&bpt->target_info);
if (val)
{
/* Couldn't set breakpoint for some reason */
|| bpt->owner->type == bp_catch_vfork
|| bpt->owner->type == bp_catch_exec)
{
- struct exception e = catch_exception (uiout, insert_catchpoint,
- bpt->owner, RETURN_MASK_ERROR);
+ struct gdb_exception e = catch_exception (uiout, insert_catchpoint,
+ bpt->owner, RETURN_MASK_ERROR);
exception_fprintf (gdb_stderr, e, "warning: inserting catchpoint %d: ",
bpt->owner->number);
if (e.reason < 0)
if (!breakpoint_enabled (b->owner))
continue;
+ /* There is no point inserting thread-specific breakpoints if the
+ thread no longer exists. */
+ if (b->owner->thread != -1
+ && !valid_thread_id (b->owner->thread))
+ continue;
+
/* FIXME drow/2003-10-07: This code should be pushed elsewhere when
hardware watchpoints are split into multiple loc breakpoints. */
if ((b->loc_type == bp_loc_hardware_watchpoint
if (b->inserted)
{
remove_breakpoint (b, mark_inserted);
+ /* Note: since we insert a breakpoint right after removing,
+ any decisions about automatically using hardware breakpoints
+ made in insert_bp_location are preserved. */
if (b->loc_type == bp_loc_hardware_breakpoint)
- val = target_insert_hw_breakpoint (b->address, b->shadow_contents);
+ val = target_insert_hw_breakpoint (&b->target_info);
else
- val = target_insert_breakpoint (b->address, b->shadow_contents);
+ val = target_insert_breakpoint (&b->target_info);
/* FIXME drow/2003-10-07: This doesn't handle any other kinds of
breakpoints. It's wrong for watchpoints, for example. */
if (val != 0)
continue;
}
- /* Ditto the sigtramp handler breakpoints. */
- if (b->type == bp_through_sigtramp)
- {
- delete_breakpoint (b);
- continue;
- }
-
/* Ditto the exception-handling catchpoints. */
if ((b->type == bp_catch_catch) || (b->type == bp_catch_throw))
{
(b->type == bp_catch_vfork) ||
(b->type == bp_catch_fork))
{
- b->loc->address = (CORE_ADDR) NULL;
+ b->loc->address = (CORE_ADDR) 0;
continue;
}
unnecessary. A call to breakpoint_re_set_one always recomputes
the breakpoint's address from scratch, or deletes it if it can't.
So I think this assignment could be deleted without effect. */
- b->loc->address = (CORE_ADDR) NULL;
+ b->loc->address = (CORE_ADDR) 0;
}
/* FIXME what about longjmp breakpoints? Re-create them here? */
create_overlay_event_breakpoint ("_ovly_debug_event");
/* No overlay handling: just remove the breakpoint. */
if (b->loc_type == bp_loc_hardware_breakpoint)
- val = target_remove_hw_breakpoint (b->address,
- b->shadow_contents);
+ val = target_remove_hw_breakpoint (&b->target_info);
else
- val = target_remove_breakpoint (b->address, b->shadow_contents);
+ val = target_remove_breakpoint (&b->target_info);
}
else
{
/* Yes -- overlay event support is not active, so we
should have set a breakpoint at the LMA. Remove it.
*/
- CORE_ADDR addr = overlay_unmapped_address (b->address,
- b->section);
/* Ignore any failures: if the LMA is in ROM, we will
have already warned when we failed to insert it. */
if (b->loc_type == bp_loc_hardware_breakpoint)
- target_remove_hw_breakpoint (addr, b->shadow_contents);
+ target_remove_hw_breakpoint (&b->overlay_target_info);
else
- target_remove_breakpoint (addr, b->shadow_contents);
+ target_remove_breakpoint (&b->overlay_target_info);
}
/* Did we set a breakpoint at the VMA?
If so, we will have marked the breakpoint 'inserted'. */
unmapped, but let's not rely on that being safe. We
don't know what the overlay manager might do. */
if (b->loc_type == bp_loc_hardware_breakpoint)
- val = target_remove_hw_breakpoint (b->address,
- b->shadow_contents);
+ val = target_remove_hw_breakpoint (&b->target_info);
+
+ /* However, we should remove *software* breakpoints only
+ if the section is still mapped, or else we overwrite
+ wrong code with the saved shadow contents. */
+ else if (section_is_mapped (b->section))
+ val = target_remove_breakpoint (&b->target_info);
else
- val = target_remove_breakpoint (b->address,
- b->shadow_contents);
+ val = 0;
}
else
{
&& breakpoint_enabled (b->owner)
&& !b->duplicate)
{
-
- val = target_remove_breakpoint (b->address, b->shadow_contents);
- if (val)
- return val;
- b->inserted = (is == mark_inserted);
- }
- else if (ep_is_exception_catchpoint (b->owner)
- && b->inserted /* sometimes previous insert doesn't happen */
- && breakpoint_enabled (b->owner)
- && !b->duplicate)
- {
-
- val = target_remove_breakpoint (b->address, b->shadow_contents);
+ val = target_remove_breakpoint (&b->target_info);
if (val)
return val;
-
b->inserted = (is == mark_inserted);
}
{
struct breakpoint *b, *temp;
struct bp_location *bpt;
- static int warning_needed = 0;
ALL_BP_LOCATIONS (bpt)
bpt->inserted = 0;
}
break;
default:
- /* Likewise for exception catchpoints in dynamic-linked
- executables where required */
- if (ep_is_exception_catchpoint (b)
- && deprecated_exception_catchpoints_are_fragile)
- {
- warning_needed = 1;
- delete_breakpoint (b);
- }
break;
}
}
-
- if (deprecated_exception_catchpoints_are_fragile)
- deprecated_exception_support_initialized = 0;
-
- /* Don't issue the warning unless it's really needed... */
- if (warning_needed && (context != inf_exited))
- {
- warning (_("Exception catchpoints from last run were deleted.\n"
- "You must reinsert them explicitly."));
- warning_needed = 0;
- }
}
/* breakpoint_here_p (PC) returns non-zero if an enabled breakpoint
}
}
+ /* Also check for software single-step breakpoints. */
+ if (single_step_breakpoint_inserted_here_p (pc))
+ return 1;
+
return 0;
}
}
}
+ /* Also check for software single-step breakpoints. */
+ if (single_step_breakpoint_inserted_here_p (pc))
+ return 1;
+
return 0;
}
}
-/* Return the breakpoint number of the first breakpoint we are stopped
+/* Put in *NUM the breakpoint number of the first breakpoint we are stopped
at. *BSP upon return is a bpstat which points to the remaining
breakpoints stopped at (but which is not guaranteed to be good for
anything but further calls to bpstat_num).
- Return 0 if passed a bpstat which does not indicate any breakpoints. */
+ Return 0 if passed a bpstat which does not indicate any breakpoints.
+ Return -1 if stopped at a breakpoint that has been deleted since
+ we set it.
+ Return 1 otherwise. */
int
-bpstat_num (bpstat *bsp)
+bpstat_num (bpstat *bsp, int *num)
{
struct breakpoint *b;
if ((*bsp) == NULL)
return 0; /* No more breakpoint values */
- else
- {
- b = (*bsp)->breakpoint_at;
- *bsp = (*bsp)->next;
- if (b == NULL)
- return -1; /* breakpoint that's been deleted since */
- else
- return b->number; /* We have its number */
- }
+
+ b = (*bsp)->breakpoint_at;
+ *bsp = (*bsp)->next;
+ if (b == NULL)
+ return -1; /* breakpoint that's been deleted since */
+
+ *num = b->number; /* We have its number */
+ return 1;
}
/* Modify BS so that the actions will not be performed. */
annotate_breakpoint (bs->breakpoint_at->number);
ui_out_text (uiout, "\nBreakpoint ");
if (ui_out_is_mi_like_p (uiout))
- ui_out_field_string (uiout, "reason", "breakpoint-hit");
+ ui_out_field_string (uiout, "reason",
+ async_reason_lookup (EXEC_ASYNC_BREAKPOINT_HIT));
ui_out_field_int (uiout, "bkptno", bs->breakpoint_at->number);
ui_out_text (uiout, ", ");
return PRINT_SRC_AND_LOC;
{
annotate_watchpoint (bs->breakpoint_at->number);
if (ui_out_is_mi_like_p (uiout))
- ui_out_field_string (uiout, "reason", "watchpoint-trigger");
+ ui_out_field_string
+ (uiout, "reason",
+ async_reason_lookup (EXEC_ASYNC_WATCHPOINT_TRIGGER));
mention (bs->breakpoint_at);
ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "value");
ui_out_text (uiout, "\nOld value = ");
case bp_read_watchpoint:
if (ui_out_is_mi_like_p (uiout))
- ui_out_field_string (uiout, "reason", "read-watchpoint-trigger");
+ ui_out_field_string
+ (uiout, "reason",
+ async_reason_lookup (EXEC_ASYNC_READ_WATCHPOINT_TRIGGER));
mention (bs->breakpoint_at);
ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "value");
ui_out_text (uiout, "\nValue = ");
{
annotate_watchpoint (bs->breakpoint_at->number);
if (ui_out_is_mi_like_p (uiout))
- ui_out_field_string (uiout, "reason", "access-watchpoint-trigger");
+ ui_out_field_string
+ (uiout, "reason",
+ async_reason_lookup (EXEC_ASYNC_ACCESS_WATCHPOINT_TRIGGER));
mention (bs->breakpoint_at);
ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "value");
ui_out_text (uiout, "\nOld value = ");
{
mention (bs->breakpoint_at);
if (ui_out_is_mi_like_p (uiout))
- ui_out_field_string (uiout, "reason", "access-watchpoint-trigger");
+ ui_out_field_string
+ (uiout, "reason",
+ async_reason_lookup (EXEC_ASYNC_ACCESS_WATCHPOINT_TRIGGER));
ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "value");
ui_out_text (uiout, "\nValue = ");
}
case bp_finish:
if (ui_out_is_mi_like_p (uiout))
- ui_out_field_string (uiout, "reason", "function-finished");
+ ui_out_field_string
+ (uiout, "reason",
+ async_reason_lookup (EXEC_ASYNC_FUNCTION_FINISHED));
return PRINT_UNKNOWN;
break;
case bp_until:
if (ui_out_is_mi_like_p (uiout))
- ui_out_field_string (uiout, "reason", "location-reached");
+ ui_out_field_string
+ (uiout, "reason",
+ async_reason_lookup (EXEC_ASYNC_LOCATION_REACHED));
return PRINT_UNKNOWN;
break;
case bp_longjmp:
case bp_longjmp_resume:
case bp_step_resume:
- case bp_through_sigtramp:
case bp_watchpoint_scope:
case bp_call_dummy:
default:
reinit_frame_cache ();
fr = frame_find_by_id (b->watchpoint_frame);
within_current_scope = (fr != NULL);
+
+ /* If we've gotten confused in the unwinder, we might have
+ returned a frame that can't describe this variable. */
+ if (within_current_scope
+ && block_function (b->exp_valid_block) != get_frame_function (fr))
+ within_current_scope = 0;
+
/* in_function_epilogue_p() returns a non-zero value if we're still
in the function but the stack frame has already been invalidated.
Since we can't rely on the values of local variables after the
will be deleted already. So we have no choice but print the
information here. */
if (ui_out_is_mi_like_p (uiout))
- ui_out_field_string (uiout, "reason", "watchpoint-scope");
+ ui_out_field_string
+ (uiout, "reason", async_reason_lookup (EXEC_ASYNC_WATCHPOINT_SCOPE));
ui_out_text (uiout, "\nWatchpoint ");
ui_out_field_int (uiout, "wpnum", bs->breakpoint_at->number);
ui_out_text (uiout, " deleted because the program has left the block in\n\
/* We hit the step_resume breakpoint. */
step_resume,
- /* We hit the through_sigtramp breakpoint. */
- through_sig,
-
/* We hit the shared library event breakpoint. */
shlib_event,
#define clr BPSTAT_WHAT_CLEAR_LONGJMP_RESUME
#define clrs BPSTAT_WHAT_CLEAR_LONGJMP_RESUME_SINGLE
#define sr BPSTAT_WHAT_STEP_RESUME
-#define ts BPSTAT_WHAT_THROUGH_SIGTRAMP
#define shl BPSTAT_WHAT_CHECK_SHLIBS
#define shlr BPSTAT_WHAT_CHECK_SHLIBS_RESUME_FROM_HOOK
back and decide something of a lower priority is better. The
ordering is:
- kc < clr sgl shl shlr slr sn sr ss ts
- sgl < clrs shl shlr slr sn sr ss ts
- slr < err shl shlr sn sr ss ts
- clr < clrs err shl shlr sn sr ss ts
- clrs < err shl shlr sn sr ss ts
- ss < shl shlr sn sr ts
- sn < shl shlr sr ts
- sr < shl shlr ts
- shl < shlr
- ts <
- shlr <
+ kc < clr sgl shl shlr slr sn sr ss
+ sgl < clrs shl shlr slr sn sr ss
+ slr < err shl shlr sn sr ss
+ clr < clrs err shl shlr sn sr ss
+ clrs < err shl shlr sn sr ss
+ ss < shl shlr sn sr
+ sn < shl shlr sr
+ shl < shlr sr
+ shlr < sr
+ sr <
What I think this means is that we don't need a damned table
here. If you just put the rows and columns in the right order,
/* step_resume entries: a step resume breakpoint overrides another
breakpoint of signal handling (see comment in wait_for_inferior
at where we set the step_resume breakpoint). */
- /* We handle the through_sigtramp_breakpoint the same way; having both
- one of those and a step_resume_breakpoint is probably very rare (?). */
static const enum bpstat_what_main_action
table[(int) class_last][(int) BPSTAT_WHAT_LAST] =
{
/* old action */
- /* kc ss sn sgl slr clr clrs sr ts shl shlr
+ /* kc ss sn sgl slr clr clrs sr shl shlr
*/
/*no_effect */
- {kc, ss, sn, sgl, slr, clr, clrs, sr, ts, shl, shlr},
+ {kc, ss, sn, sgl, slr, clr, clrs, sr, shl, shlr},
/*wp_silent */
- {ss, ss, sn, ss, ss, ss, ss, sr, ts, shl, shlr},
+ {ss, ss, sn, ss, ss, ss, ss, sr, shl, shlr},
/*wp_noisy */
- {sn, sn, sn, sn, sn, sn, sn, sr, ts, shl, shlr},
+ {sn, sn, sn, sn, sn, sn, sn, sr, shl, shlr},
/*bp_nostop */
- {sgl, ss, sn, sgl, slr, clrs, clrs, sr, ts, shl, shlr},
+ {sgl, ss, sn, sgl, slr, clrs, clrs, sr, shl, shlr},
/*bp_silent */
- {ss, ss, sn, ss, ss, ss, ss, sr, ts, shl, shlr},
+ {ss, ss, sn, ss, ss, ss, ss, sr, shl, shlr},
/*bp_noisy */
- {sn, sn, sn, sn, sn, sn, sn, sr, ts, shl, shlr},
+ {sn, sn, sn, sn, sn, sn, sn, sr, shl, shlr},
/*long_jump */
- {slr, ss, sn, slr, slr, err, err, sr, ts, shl, shlr},
+ {slr, ss, sn, slr, slr, err, err, sr, shl, shlr},
/*long_resume */
- {clr, ss, sn, clrs, err, err, err, sr, ts, shl, shlr},
+ {clr, ss, sn, clrs, err, err, err, sr, shl, shlr},
/*step_resume */
- {sr, sr, sr, sr, sr, sr, sr, sr, ts, shl, shlr},
-/*through_sig */
- {ts, ts, ts, ts, ts, ts, ts, ts, ts, shl, shlr},
+ {sr, sr, sr, sr, sr, sr, sr, sr, sr, sr},
/*shlib */
- {shl, shl, shl, shl, shl, shl, shl, shl, ts, shl, shlr},
+ {shl, shl, shl, shl, shl, shl, shl, sr, shl, shlr},
/*catch_shlib */
- {shlr, shlr, shlr, shlr, shlr, shlr, shlr, shlr, ts, shlr, shlr}
+ {shlr, shlr, shlr, shlr, shlr, shlr, shlr, sr, shlr, shlr}
};
#undef kc
/* It is for the wrong frame. */
bs_class = bp_nostop;
break;
- case bp_through_sigtramp:
- bs_class = through_sig;
- break;
case bp_watchpoint_scope:
bs_class = bp_nostop;
break;
{bp_longjmp, "longjmp"},
{bp_longjmp_resume, "longjmp resume"},
{bp_step_resume, "step resume"},
- {bp_through_sigtramp, "sigtramp"},
{bp_watchpoint_scope, "watchpoint scope"},
{bp_call_dummy, "call dummy"},
{bp_shlib_event, "shlib events"},
ui_out_field_int (uiout, "what", b->forked_inferior_pid);
ui_out_spaces (uiout, 1);
}
+ break;
case bp_catch_exec:
/* Field 4, the address, is omitted (which makes the columns
case bp_longjmp:
case bp_longjmp_resume:
case bp_step_resume:
- case bp_through_sigtramp:
case bp_watchpoint_scope:
case bp_call_dummy:
case bp_shlib_event:
}
ui_out_field_string (uiout, "file", b->source_file);
ui_out_text (uiout, ":");
+
+ if (ui_out_is_mi_like_p (uiout))
+ {
+ struct symtab_and_line sal = find_pc_line (b->loc->address, 0);
+ char *fullname = symtab_to_fullname (sal.symtab);
+
+ if (fullname)
+ ui_out_field_string (uiout, "fullname", fullname);
+ }
+
ui_out_field_int (uiout, "line", b->line_number);
}
else if (b->pending)
ui_out_text (uiout, "\n");
}
- if (b->cond)
+ if (b->cond && !ada_exception_catchpoint_p (b))
{
+ /* We do not print the condition for Ada exception catchpoints
+ because the condition is an internal implementation detail
+ that we do not want to expose to the user. */
annotate_field (7);
ui_out_text (uiout, "\tstop only if ");
print_expression (b->cond, stb->stream);
args.bnum = bnum;
/* For the moment we don't trust print_one_breakpoint() to not throw
an error. */
- return catch_exceptions_with_msg (uiout, do_captured_breakpoint_query, &args,
- error_message, RETURN_MASK_ALL);
+ if (catch_exceptions_with_msg (uiout, do_captured_breakpoint_query, &args,
+ error_message, RETURN_MASK_ALL) < 0)
+ return GDB_RC_FAIL;
+ else
+ return GDB_RC_OK;
}
/* Return non-zero if B is user settable (breakpoints, watchpoints,
/* Print a message describing any breakpoints set at PC. */
static void
-describe_other_breakpoints (CORE_ADDR pc, asection *section)
+describe_other_breakpoints (CORE_ADDR pc, asection *section, int thread)
{
int others = 0;
struct breakpoint *b;
if (!b->pending && (!overlay_debugging || b->loc->section == section))
{
others--;
- printf_filtered ("%d%s%s ",
- b->number,
+ printf_filtered ("%d", b->number);
+ if (b->thread == -1 && thread != -1)
+ printf_filtered (" (all threads)");
+ else if (b->thread != -1)
+ printf_filtered (" (thread %d)", b->thread);
+ printf_filtered ("%s%s ",
((b->enable_state == bp_disabled ||
b->enable_state == bp_shlib_disabled ||
b->enable_state == bp_call_disabled)
- ? " (disabled)"
+ ? " (disabled)"
: b->enable_state == bp_permanent
? " (permanent)"
: ""),
case bp_longjmp:
case bp_longjmp_resume:
case bp_step_resume:
- case bp_through_sigtramp:
case bp_watchpoint_scope:
case bp_call_dummy:
case bp_shlib_event:
set_raw_breakpoint (struct symtab_and_line sal, enum bptype bptype)
{
struct breakpoint *b, *b1;
+ CORE_ADDR adjusted_address;
b = (struct breakpoint *) xmalloc (sizeof (struct breakpoint));
memset (b, 0, sizeof (*b));
+
+ /* Adjust the breakpoint's address prior to allocating a location.
+ Once we call allocate_bp_location(), that mostly uninitialized
+ location will be placed on the location chain. Adjustment of the
+ breakpoint may cause read_memory_nobpt() to be called and we do
+ not want its scan of the location chain to find a breakpoint and
+ location that's only been partially initialized. */
+ adjusted_address = adjust_breakpoint_address (sal.pc, bptype);
+
b->loc = allocate_bp_location (b, bptype);
b->loc->requested_address = sal.pc;
- b->loc->address = adjust_breakpoint_address (b->loc->requested_address,
- bptype);
+ b->loc->address = adjusted_address;
+
if (sal.symtab == NULL)
b->source_file = NULL;
else
return rc;
}
-#ifdef SOLIB_ADD
void
remove_solib_event_breakpoints (void)
{
/* See also: insert_breakpoints, under DISABLE_UNSETTABLE_BREAK. */
ALL_BREAKPOINTS (b)
{
-#if defined (PC_SOLIB)
- if (((b->type == bp_breakpoint) ||
- (b->type == bp_hardware_breakpoint)) &&
- breakpoint_enabled (b) &&
- !b->loc->duplicate &&
- PC_SOLIB (b->loc->address))
+ if (((b->type == bp_breakpoint) || (b->type == bp_hardware_breakpoint))
+ && breakpoint_enabled (b) && !b->loc->duplicate
+#ifdef PC_SOLIB
+ && PC_SOLIB (b->loc->address)
+#else
+ && solib_address (b->loc->address)
+#endif
+ )
{
b->enable_state = bp_shlib_disabled;
if (!silent)
warning (_("breakpoint #%d "), b->number);
}
}
-#endif
}
}
struct breakpoint *b;
int disabled_shlib_breaks = 0;
-#if defined (PC_SOLIB)
/* See also: insert_breakpoints, under DISABLE_UNSETTABLE_BREAK. */
ALL_BREAKPOINTS (b)
{
if ((b->loc->loc_type == bp_loc_hardware_breakpoint
|| b->loc->loc_type == bp_loc_software_breakpoint)
- && breakpoint_enabled (b)
- && !b->loc->duplicate)
+ && breakpoint_enabled (b) && !b->loc->duplicate)
{
+#ifdef PC_SOLIB
char *so_name = PC_SOLIB (b->loc->address);
- if (so_name
- && !strcmp (so_name, solib->so_name))
+#else
+ char *so_name = solib_address (b->loc->address);
+#endif
+ if (so_name && !strcmp (so_name, solib->so_name))
{
b->enable_state = bp_shlib_disabled;
/* At this point, we cannot rely on remove_breakpoint
}
}
}
-#endif
}
/* Try to reenable any breakpoints in shared libraries. */
{
if (b->enable_state == bp_shlib_disabled)
{
- char buf[1], *lib;
+ gdb_byte buf[1];
+ char *lib;
- /* Do not reenable the breakpoint if the shared library
- is still not mapped in. */
+ /* Do not reenable the breakpoint if the shared library is
+ still not mapped in. */
+#ifdef PC_SOLIB
lib = PC_SOLIB (b->loc->address);
+#else
+ lib = solib_address (b->loc->address);
+#endif
if (lib != NULL && target_read_memory (b->loc->address, buf, 1) == 0)
b->enable_state = bp_enabled;
}
}
}
-#endif
-
static void
solib_load_unload_1 (char *hookname, int tempflag, char *dll_pathname,
char *cond_string, enum bptype bp_kind)
case bp_longjmp:
case bp_longjmp_resume:
case bp_step_resume:
- case bp_through_sigtramp:
case bp_call_dummy:
case bp_watchpoint_scope:
case bp_shlib_event:
struct symtab_and_line sal = sals.sals[i];
if (from_tty)
- describe_other_breakpoints (sal.pc, sal.section);
+ describe_other_breakpoints (sal.pc, sal.section, thread);
b = set_raw_breakpoint (sal, type);
set_breakpoint_count (breakpoint_count + 1);
static int
break_command_1 (char *arg, int flag, int from_tty, struct breakpoint *pending_bp)
{
- struct exception e;
+ struct gdb_exception e;
int tempflag, hardwareflag;
struct symtabs_and_lines sals;
struct expression **cond = 0;
args.tempflag = tempflag;
args.thread = thread;
args.ignore_count = ignore_count;
- return catch_exceptions_with_msg (uiout, do_captured_breakpoint, &args,
- error_message, RETURN_MASK_ALL);
+ if (catch_exceptions_with_msg (uiout, do_captured_breakpoint, &args,
+ error_message, RETURN_MASK_ALL) < 0)
+ return GDB_RC_FAIL;
+ else
+ return GDB_RC_OK;
}
in hardware. If the watchpoint can not be handled
in hardware return zero. */
-#if !defined(TARGET_REGION_OK_FOR_HW_WATCHPOINT)
-#define TARGET_REGION_OK_FOR_HW_WATCHPOINT(ADDR,LEN) \
- (TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT(LEN))
-#endif
-
static int
can_use_hardware_watchpoint (struct value *v)
{
{
struct symtabs_and_lines sals;
struct symtab_and_line sal;
- struct frame_info *prev_frame = get_prev_frame (deprecated_selected_frame);
+ struct frame_info *frame = get_selected_frame (NULL);
+ struct frame_info *prev_frame = get_prev_frame (frame);
struct breakpoint *breakpoint;
struct cleanup *old_chain;
struct continuation_arg *arg1;
else
/* Otherwise, specify the current frame, because we want to stop only
at the very same frame. */
- breakpoint = set_momentary_breakpoint (sal,
- get_frame_id (deprecated_selected_frame),
+ breakpoint = set_momentary_breakpoint (sal, get_frame_id (frame),
bp_until);
if (!target_can_async_p ())
warning (_("Unsupported with this platform/compiler combination."));
}
+/* Create a breakpoint struct for Ada exception catchpoints. */
+
+static void
+create_ada_exception_breakpoint (struct symtab_and_line sal,
+ char *addr_string,
+ char *exp_string,
+ char *cond_string,
+ struct expression *cond,
+ struct breakpoint_ops *ops,
+ int tempflag,
+ int from_tty)
+{
+ struct breakpoint *b;
+
+ if (from_tty)
+ {
+ describe_other_breakpoints (sal.pc, sal.section, -1);
+ /* FIXME: brobecker/2006-12-28: Actually, re-implement a special
+ version for exception catchpoints, because two catchpoints
+ used for different exception names will use the same address.
+ In this case, a "breakpoint ... also set at..." warning is
+ unproductive. Besides. the warning phrasing is also a bit
+ inapropriate, we should use the word catchpoint, and tell
+ the user what type of catchpoint it is. The above is good
+ enough for now, though. */
+ }
+
+ b = set_raw_breakpoint (sal, bp_breakpoint);
+ set_breakpoint_count (breakpoint_count + 1);
+
+ b->enable_state = bp_enabled;
+ b->disposition = tempflag ? disp_del : disp_donttouch;
+ b->number = breakpoint_count;
+ b->ignore_count = 0;
+ b->cond = cond;
+ b->addr_string = addr_string;
+ b->language = language_ada;
+ b->cond_string = cond_string;
+ b->exp_string = exp_string;
+ b->thread = -1;
+ b->ops = ops;
+ b->from_tty = from_tty;
+
+ mention (b);
+}
+
+/* Implement the "catch exception" command. */
+
+static void
+catch_ada_exception_command (char *arg, int tempflag, int from_tty)
+{
+ struct symtab_and_line sal;
+ enum bptype type;
+ char *addr_string = NULL;
+ char *exp_string = NULL;
+ char *cond_string = NULL;
+ struct expression *cond = NULL;
+ struct breakpoint_ops *ops = NULL;
+
+ sal = ada_decode_exception_location (arg, &addr_string, &exp_string,
+ &cond_string, &cond, &ops);
+ create_ada_exception_breakpoint (sal, addr_string, exp_string,
+ cond_string, cond, ops, tempflag,
+ from_tty);
+}
+
+/* Implement the "catch assert" command. */
+
+static void
+catch_assert_command (char *arg, int tempflag, int from_tty)
+{
+ struct symtab_and_line sal;
+ char *addr_string = NULL;
+ struct breakpoint_ops *ops = NULL;
+
+ sal = ada_decode_assert_location (arg, &addr_string, &ops);
+ create_ada_exception_breakpoint (sal, addr_string, NULL, NULL, NULL, ops,
+ tempflag, from_tty);
+}
+
/* Cover routine to allow wrapping target_enable_exception_catchpoints
inside a catch_errors */
{
error (_("Catch of stop not yet implemented"));
}
+ else if (strncmp (arg1_start, "exception", arg1_length) == 0)
+ {
+ catch_ada_exception_command (arg1_end + 1, tempflag, from_tty);
+ }
+
+ else if (strncmp (arg1_start, "assert", arg1_length) == 0)
+ {
+ catch_assert_command (arg1_end + 1, tempflag, from_tty);
+ }
/* This doesn't appear to be an event name */
_("another breakpoint was inserted on top of "
"a permanent breakpoint"));
+ memset (&b->loc->target_info, 0, sizeof (b->loc->target_info));
+ b->loc->target_info.placed_address = b->loc->address;
if (b->type == bp_hardware_breakpoint)
- val = target_insert_hw_breakpoint (b->loc->address, b->loc->shadow_contents);
+ val = target_insert_hw_breakpoint (&b->loc->target_info);
else
- val = target_insert_breakpoint (b->loc->address, b->loc->shadow_contents);
+ val = target_insert_breakpoint (&b->loc->target_info);
/* If there was an error in the insert, print a message, then stop execution. */
if (val != 0)
b->type != bp_thread_event &&
b->type != bp_overlay_event &&
b->number >= 0)
- breaks_to_delete = 1;
+ {
+ breaks_to_delete = 1;
+ break;
+ }
}
/* Ask user only if there are some breakpoints to delete. */
set_language (save_language);
input_radix = save_input_radix;
- if (GET_LONGJMP_TARGET_P ())
+ if (gdbarch_get_longjmp_target_p (current_gdbarch))
{
create_longjmp_breakpoint ("longjmp");
create_longjmp_breakpoint ("_longjmp");
int mem_cnt = can_use_hardware_watchpoint (bpt->val);
/* Hack around 'unused var' error for some targets here */
- (void) mem_cnt, i;
+ (void) mem_cnt, (void) i;
target_resources_ok = TARGET_CAN_USE_HARDWARE_WATCHPOINT (
bpt->type, i + mem_cnt, other_type_used);
/* we can consider of type is bp_hardware_watchpoint, convert to
error (_("Junk at end of line specification: %s"), string);
return sals;
}
+
+/* Create and insert a raw software breakpoint at PC. Return an
+ identifier, which should be used to remove the breakpoint later.
+ In general, places which call this should be using something on the
+ breakpoint chain instead; this function should be eliminated
+ someday. */
+
+void *
+deprecated_insert_raw_breakpoint (CORE_ADDR pc)
+{
+ struct bp_target_info *bp_tgt;
+
+ bp_tgt = xmalloc (sizeof (struct bp_target_info));
+ memset (bp_tgt, 0, sizeof (struct bp_target_info));
+
+ bp_tgt->placed_address = pc;
+ if (target_insert_breakpoint (bp_tgt) != 0)
+ {
+ /* Could not insert the breakpoint. */
+ xfree (bp_tgt);
+ return NULL;
+ }
+
+ return bp_tgt;
+}
+
+/* Remove a breakpoint BP inserted by deprecated_insert_raw_breakpoint. */
+
+int
+deprecated_remove_raw_breakpoint (void *bp)
+{
+ struct bp_target_info *bp_tgt = bp;
+ int ret;
+
+ ret = target_remove_breakpoint (bp_tgt);
+ xfree (bp_tgt);
+
+ return ret;
+}
+
+/* One (or perhaps two) breakpoints used for software single stepping. */
+
+static void *single_step_breakpoints[2];
+
+/* Create and insert a breakpoint for software single step. */
+
+void
+insert_single_step_breakpoint (CORE_ADDR next_pc)
+{
+ void **bpt_p;
+
+ if (single_step_breakpoints[0] == NULL)
+ bpt_p = &single_step_breakpoints[0];
+ else
+ {
+ gdb_assert (single_step_breakpoints[1] == NULL);
+ bpt_p = &single_step_breakpoints[1];
+ }
+
+ /* NOTE drow/2006-04-11: A future improvement to this function would be
+ to only create the breakpoints once, and actually put them on the
+ breakpoint chain. That would let us use set_raw_breakpoint. We could
+ adjust the addresses each time they were needed. Doing this requires
+ corresponding changes elsewhere where single step breakpoints are
+ handled, however. So, for now, we use this. */
+
+ *bpt_p = deprecated_insert_raw_breakpoint (next_pc);
+ if (*bpt_p == NULL)
+ error (_("Could not insert single-step breakpoint at 0x%s"),
+ paddr_nz (next_pc));
+}
+
+/* Remove and delete any breakpoints used for software single step. */
+
+void
+remove_single_step_breakpoints (void)
+{
+ gdb_assert (single_step_breakpoints[0] != NULL);
+
+ /* See insert_single_step_breakpoint for more about this deprecated
+ call. */
+ deprecated_remove_raw_breakpoint (single_step_breakpoints[0]);
+ single_step_breakpoints[0] = NULL;
+
+ if (single_step_breakpoints[1] != NULL)
+ {
+ deprecated_remove_raw_breakpoint (single_step_breakpoints[1]);
+ single_step_breakpoints[1] = NULL;
+ }
+}
+
+/* Check whether a software single-step breakpoint is inserted at PC. */
+
+static int
+single_step_breakpoint_inserted_here_p (CORE_ADDR pc)
+{
+ int i;
+
+ for (i = 0; i < 2; i++)
+ {
+ struct bp_target_info *bp_tgt = single_step_breakpoints[i];
+ if (bp_tgt && bp_tgt->placed_address == pc)
+ return 1;
+ }
+
+ return 0;
+}
+
\f
+/* This help string is used for the break, hbreak, tbreak and thbreak commands.
+ It is defined as a macro to prevent duplication.
+ COMMAND should be a string constant containing the name of the command. */
+#define BREAK_ARGS_HELP(command) \
+command" [LOCATION] [thread THREADNUM] [if CONDITION]\n\
+LOCATION may be a line number, function name, or \"*\" and an address.\n\
+If a line number is specified, break at start of code for that line.\n\
+If a function is specified, break at start of code for that function.\n\
+If an address is specified, break at that exact address.\n\
+With no LOCATION, uses current execution address of selected stack frame.\n\
+This is useful for breaking on return to a stack frame.\n\
+\n\
+THREADNUM is the number from \"info threads\".\n\
+CONDITION is a boolean expression.\n\
+\n\
+Multiple breakpoints at one place are permitted, and useful if conditional.\n\
+\n\
+Do \"help breakpoints\" for info on other commands dealing with breakpoints."
+
void
_initialize_breakpoint (void)
{
static struct cmd_list_element *breakpoint_show_cmdlist;
struct cmd_list_element *c;
-#ifdef SOLIB_ADD
observer_attach_solib_unloaded (disable_breakpoints_in_unloaded_shlib);
-#endif
breakpoint_chain = 0;
/* Don't bother to call set_breakpoint_count. $bpnum isn't useful
before a breakpoint is set. */
breakpoint_count = 0;
- add_com ("ignore", class_breakpoint, ignore_command,
- "Set ignore-count of breakpoint number N to COUNT.\n\
-Usage is `ignore N COUNT'.");
+ add_com ("ignore", class_breakpoint, ignore_command, _("\
+Set ignore-count of breakpoint number N to COUNT.\n\
+Usage is `ignore N COUNT'."));
if (xdb_commands)
add_com_alias ("bc", "ignore", class_breakpoint, 1);
- add_com ("commands", class_breakpoint, commands_command,
- "Set commands to be executed when a breakpoint is hit.\n\
+ add_com ("commands", class_breakpoint, commands_command, _("\
+Set commands to be executed when a breakpoint is hit.\n\
Give breakpoint number as argument after \"commands\".\n\
With no argument, the targeted breakpoint is the last one set.\n\
The commands themselves follow starting on the next line.\n\
Type a line containing \"end\" to indicate the end of them.\n\
Give \"silent\" as the first line to make the breakpoint silent;\n\
-then no output is printed when it is hit, except what the commands print.");
+then no output is printed when it is hit, except what the commands print."));
- add_com ("condition", class_breakpoint, condition_command,
- "Specify breakpoint number N to break only if COND is true.\n\
+ add_com ("condition", class_breakpoint, condition_command, _("\
+Specify breakpoint number N to break only if COND is true.\n\
Usage is `condition N COND', where N is an integer and COND is an\n\
-expression to be evaluated whenever breakpoint N is reached.");
+expression to be evaluated whenever breakpoint N is reached."));
- c = add_com ("tbreak", class_breakpoint, tbreak_command,
- "Set a temporary breakpoint. Args like \"break\" command.\n\
+ c = add_com ("tbreak", class_breakpoint, tbreak_command, _("\
+Set a temporary breakpoint.\n\
Like \"break\" except the breakpoint is only temporary,\n\
so it will be deleted when hit. Equivalent to \"break\" followed\n\
-by using \"enable delete\" on the breakpoint number.");
+by using \"enable delete\" on the breakpoint number.\n\
+\n"
+BREAK_ARGS_HELP ("tbreak")));
set_cmd_completer (c, location_completer);
- c = add_com ("hbreak", class_breakpoint, hbreak_command,
- "Set a hardware assisted breakpoint. Args like \"break\" command.\n\
+ c = add_com ("hbreak", class_breakpoint, hbreak_command, _("\
+Set a hardware assisted breakpoint.\n\
Like \"break\" except the breakpoint requires hardware support,\n\
-some target hardware may not have this support.");
+some target hardware may not have this support.\n\
+\n"
+BREAK_ARGS_HELP ("hbreak")));
set_cmd_completer (c, location_completer);
- c = add_com ("thbreak", class_breakpoint, thbreak_command,
- "Set a temporary hardware assisted breakpoint. Args like \"break\" command.\n\
+ c = add_com ("thbreak", class_breakpoint, thbreak_command, _("\
+Set a temporary hardware assisted breakpoint.\n\
Like \"hbreak\" except the breakpoint is only temporary,\n\
-so it will be deleted when hit.");
+so it will be deleted when hit.\n\
+\n"
+BREAK_ARGS_HELP ("thbreak")));
set_cmd_completer (c, location_completer);
- add_prefix_cmd ("enable", class_breakpoint, enable_command,
- "Enable some breakpoints.\n\
+ add_prefix_cmd ("enable", class_breakpoint, enable_command, _("\
+Enable some breakpoints.\n\
Give breakpoint numbers (separated by spaces) as arguments.\n\
With no subcommand, breakpoints are enabled until you command otherwise.\n\
This is used to cancel the effect of the \"disable\" command.\n\
-With a subcommand you can enable temporarily.",
+With a subcommand you can enable temporarily."),
&enablelist, "enable ", 1, &cmdlist);
if (xdb_commands)
- add_com ("ab", class_breakpoint, enable_command,
- "Enable some breakpoints.\n\
+ add_com ("ab", class_breakpoint, enable_command, _("\
+Enable some breakpoints.\n\
Give breakpoint numbers (separated by spaces) as arguments.\n\
With no subcommand, breakpoints are enabled until you command otherwise.\n\
This is used to cancel the effect of the \"disable\" command.\n\
-With a subcommand you can enable temporarily.");
+With a subcommand you can enable temporarily."));
add_com_alias ("en", "enable", class_breakpoint, 1);
- add_abbrev_prefix_cmd ("breakpoints", class_breakpoint, enable_command,
- "Enable some breakpoints.\n\
+ add_abbrev_prefix_cmd ("breakpoints", class_breakpoint, enable_command, _("\
+Enable some breakpoints.\n\
Give breakpoint numbers (separated by spaces) as arguments.\n\
This is used to cancel the effect of the \"disable\" command.\n\
-May be abbreviated to simply \"enable\".\n",
+May be abbreviated to simply \"enable\".\n"),
&enablebreaklist, "enable breakpoints ", 1, &enablelist);
- add_cmd ("once", no_class, enable_once_command,
- "Enable breakpoints for one hit. Give breakpoint numbers.\n\
-If a breakpoint is hit while enabled in this fashion, it becomes disabled.",
+ add_cmd ("once", no_class, enable_once_command, _("\
+Enable breakpoints for one hit. Give breakpoint numbers.\n\
+If a breakpoint is hit while enabled in this fashion, it becomes disabled."),
&enablebreaklist);
- add_cmd ("delete", no_class, enable_delete_command,
- "Enable breakpoints and delete when hit. Give breakpoint numbers.\n\
-If a breakpoint is hit while enabled in this fashion, it is deleted.",
+ add_cmd ("delete", no_class, enable_delete_command, _("\
+Enable breakpoints and delete when hit. Give breakpoint numbers.\n\
+If a breakpoint is hit while enabled in this fashion, it is deleted."),
&enablebreaklist);
- add_cmd ("delete", no_class, enable_delete_command,
- "Enable breakpoints and delete when hit. Give breakpoint numbers.\n\
-If a breakpoint is hit while enabled in this fashion, it is deleted.",
+ add_cmd ("delete", no_class, enable_delete_command, _("\
+Enable breakpoints and delete when hit. Give breakpoint numbers.\n\
+If a breakpoint is hit while enabled in this fashion, it is deleted."),
&enablelist);
- add_cmd ("once", no_class, enable_once_command,
- "Enable breakpoints for one hit. Give breakpoint numbers.\n\
-If a breakpoint is hit while enabled in this fashion, it becomes disabled.",
+ add_cmd ("once", no_class, enable_once_command, _("\
+Enable breakpoints for one hit. Give breakpoint numbers.\n\
+If a breakpoint is hit while enabled in this fashion, it becomes disabled."),
&enablelist);
- add_prefix_cmd ("disable", class_breakpoint, disable_command,
- "Disable some breakpoints.\n\
+ add_prefix_cmd ("disable", class_breakpoint, disable_command, _("\
+Disable some breakpoints.\n\
Arguments are breakpoint numbers with spaces in between.\n\
To disable all breakpoints, give no argument.\n\
-A disabled breakpoint is not forgotten, but has no effect until reenabled.",
+A disabled breakpoint is not forgotten, but has no effect until reenabled."),
&disablelist, "disable ", 1, &cmdlist);
add_com_alias ("dis", "disable", class_breakpoint, 1);
add_com_alias ("disa", "disable", class_breakpoint, 1);
if (xdb_commands)
- add_com ("sb", class_breakpoint, disable_command,
- "Disable some breakpoints.\n\
+ add_com ("sb", class_breakpoint, disable_command, _("\
+Disable some breakpoints.\n\
Arguments are breakpoint numbers with spaces in between.\n\
To disable all breakpoints, give no argument.\n\
-A disabled breakpoint is not forgotten, but has no effect until reenabled.");
+A disabled breakpoint is not forgotten, but has no effect until reenabled."));
- add_cmd ("breakpoints", class_alias, disable_command,
- "Disable some breakpoints.\n\
+ add_cmd ("breakpoints", class_alias, disable_command, _("\
+Disable some breakpoints.\n\
Arguments are breakpoint numbers with spaces in between.\n\
To disable all breakpoints, give no argument.\n\
A disabled breakpoint is not forgotten, but has no effect until reenabled.\n\
-This command may be abbreviated \"disable\".",
+This command may be abbreviated \"disable\"."),
&disablelist);
- add_prefix_cmd ("delete", class_breakpoint, delete_command,
- "Delete some breakpoints or auto-display expressions.\n\
+ add_prefix_cmd ("delete", class_breakpoint, delete_command, _("\
+Delete some breakpoints or auto-display expressions.\n\
Arguments are breakpoint numbers with spaces in between.\n\
To delete all breakpoints, give no argument.\n\
\n\
Also a prefix command for deletion of other GDB objects.\n\
-The \"unset\" command is also an alias for \"delete\".",
+The \"unset\" command is also an alias for \"delete\"."),
&deletelist, "delete ", 1, &cmdlist);
add_com_alias ("d", "delete", class_breakpoint, 1);
+ add_com_alias ("del", "delete", class_breakpoint, 1);
if (xdb_commands)
- add_com ("db", class_breakpoint, delete_command,
- "Delete some breakpoints.\n\
+ add_com ("db", class_breakpoint, delete_command, _("\
+Delete some breakpoints.\n\
Arguments are breakpoint numbers with spaces in between.\n\
-To delete all breakpoints, give no argument.\n");
+To delete all breakpoints, give no argument.\n"));
- add_cmd ("breakpoints", class_alias, delete_command,
- "Delete some breakpoints or auto-display expressions.\n\
+ add_cmd ("breakpoints", class_alias, delete_command, _("\
+Delete some breakpoints or auto-display expressions.\n\
Arguments are breakpoint numbers with spaces in between.\n\
To delete all breakpoints, give no argument.\n\
-This command may be abbreviated \"delete\".",
+This command may be abbreviated \"delete\"."),
&deletelist);
- add_com ("clear", class_breakpoint, clear_command,
- concat ("Clear breakpoint at specified line or function.\n\
+ add_com ("clear", class_breakpoint, clear_command, _("\
+Clear breakpoint at specified line or function.\n\
Argument may be line number, function name, or \"*\" and an address.\n\
If line number is specified, all breakpoints in that line are cleared.\n\
If function is specified, breakpoints at beginning of function are cleared.\n\
-If an address is specified, breakpoints at that address are cleared.\n\n",
- "With no argument, clears all breakpoints in the line that the selected frame\n\
+If an address is specified, breakpoints at that address are cleared.\n\
+\n\
+With no argument, clears all breakpoints in the line that the selected frame\n\
is executing in.\n\
\n\
-See also the \"delete\" command which clears breakpoints by number.", NULL));
+See also the \"delete\" command which clears breakpoints by number."));
- c = add_com ("break", class_breakpoint, break_command,
- concat ("Set breakpoint at specified line or function.\n\
-Argument may be line number, function name, or \"*\" and an address.\n\
-If line number is specified, break at start of code for that line.\n\
-If function is specified, break at start of code for that function.\n\
-If an address is specified, break at that exact address.\n",
- "With no arg, uses current execution address of selected stack frame.\n\
-This is useful for breaking on return to a stack frame.\n\
-\n\
-Multiple breakpoints at one place are permitted, and useful if conditional.\n\
-\n\
-Do \"help breakpoints\" for info on other commands dealing with breakpoints.", NULL));
+ c = add_com ("break", class_breakpoint, break_command, _("\
+Set breakpoint at specified line or function.\n"
+BREAK_ARGS_HELP ("break")));
set_cmd_completer (c, location_completer);
add_com_alias ("b", "break", class_run, 1);
if (dbx_commands)
{
- add_abbrev_prefix_cmd ("stop", class_breakpoint, stop_command,
- "Break in function/address or break at a line in the current file.",
+ add_abbrev_prefix_cmd ("stop", class_breakpoint, stop_command, _("\
+Break in function/address or break at a line in the current file."),
&stoplist, "stop ", 1, &cmdlist);
add_cmd ("in", class_breakpoint, stopin_command,
- "Break in function or address.\n", &stoplist);
+ _("Break in function or address."), &stoplist);
add_cmd ("at", class_breakpoint, stopat_command,
- "Break at a line in the current file.\n", &stoplist);
- add_com ("status", class_info, breakpoints_info,
- concat ("Status of user-settable breakpoints, or breakpoint number NUMBER.\n\
+ _("Break at a line in the current file."), &stoplist);
+ add_com ("status", class_info, breakpoints_info, _("\
+Status of user-settable breakpoints, or breakpoint number NUMBER.\n\
The \"Type\" column indicates one of:\n\
\tbreakpoint - normal breakpoint\n\
\twatchpoint - watchpoint\n\
The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\
the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\
breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\
-address and file/line number respectively.\n\n",
- "Convenience variable \"$_\" and default examine address for \"x\"\n\
+address and file/line number respectively.\n\
+\n\
+Convenience variable \"$_\" and default examine address for \"x\"\n\
are set to the address of the last breakpoint listed.\n\n\
Convenience variable \"$bpnum\" contains the number of the last\n\
-breakpoint set.", NULL));
+breakpoint set."));
}
- add_info ("breakpoints", breakpoints_info,
- concat ("Status of user-settable breakpoints, or breakpoint number NUMBER.\n\
+ add_info ("breakpoints", breakpoints_info, _("\
+Status of user-settable breakpoints, or breakpoint number NUMBER.\n\
The \"Type\" column indicates one of:\n\
\tbreakpoint - normal breakpoint\n\
\twatchpoint - watchpoint\n\
The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\
the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\
breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\
-address and file/line number respectively.\n\n",
- "Convenience variable \"$_\" and default examine address for \"x\"\n\
+address and file/line number respectively.\n\
+\n\
+Convenience variable \"$_\" and default examine address for \"x\"\n\
are set to the address of the last breakpoint listed.\n\n\
Convenience variable \"$bpnum\" contains the number of the last\n\
-breakpoint set.", NULL));
+breakpoint set."));
if (xdb_commands)
- add_com ("lb", class_breakpoint, breakpoints_info,
- concat ("Status of user-settable breakpoints, or breakpoint number NUMBER.\n\
+ add_com ("lb", class_breakpoint, breakpoints_info, _("\
+Status of user-settable breakpoints, or breakpoint number NUMBER.\n\
The \"Type\" column indicates one of:\n\
\tbreakpoint - normal breakpoint\n\
\twatchpoint - watchpoint\n\
The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\
the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\
breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\
-address and file/line number respectively.\n\n",
- "Convenience variable \"$_\" and default examine address for \"x\"\n\
+address and file/line number respectively.\n\
+\n\
+Convenience variable \"$_\" and default examine address for \"x\"\n\
are set to the address of the last breakpoint listed.\n\n\
Convenience variable \"$bpnum\" contains the number of the last\n\
-breakpoint set.", NULL));
+breakpoint set."));
- add_cmd ("breakpoints", class_maintenance, maintenance_info_breakpoints,
- concat ("Status of all breakpoints, or breakpoint number NUMBER.\n\
+ add_cmd ("breakpoints", class_maintenance, maintenance_info_breakpoints, _("\
+Status of all breakpoints, or breakpoint number NUMBER.\n\
The \"Type\" column indicates one of:\n\
\tbreakpoint - normal breakpoint\n\
\twatchpoint - watchpoint\n\
\tlongjmp - internal breakpoint used to step through longjmp()\n\
\tlongjmp resume - internal breakpoint at the target of longjmp()\n\
\tuntil - internal breakpoint used by the \"until\" command\n\
-\tfinish - internal breakpoint used by the \"finish\" command\n",
- "The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\
+\tfinish - internal breakpoint used by the \"finish\" command\n\
+The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\
the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\
breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\
-address and file/line number respectively.\n\n",
- "Convenience variable \"$_\" and default examine address for \"x\"\n\
-are set to the address of the last breakpoint listed.\n\n\
+address and file/line number respectively.\n\
+\n\
+Convenience variable \"$_\" and default examine address for \"x\"\n\
+are set to the address of the last breakpoint listed.\n\
+\n\
Convenience variable \"$bpnum\" contains the number of the last\n\
-breakpoint set.", NULL),
+breakpoint set."),
&maintenanceinfolist);
- add_com ("catch", class_breakpoint, catch_command,
- "Set catchpoints to catch events.\n\
+ add_com ("catch", class_breakpoint, catch_command, _("\
+Set catchpoints to catch events.\n\
Raised signals may be caught:\n\
\tcatch signal - all signals\n\
\tcatch signal <signame> - a particular signal\n\
C++ exceptions may be caught:\n\
\tcatch throw - all exceptions, when thrown\n\
\tcatch catch - all exceptions, when caught\n\
+Ada exceptions may be caught:\n\
+\tcatch exception - all exceptions, when raised\n\
+\tcatch exception <name> - a particular exception, when raised\n\
+\tcatch exception unhandled - all unhandled exceptions, when raised\n\
+\tcatch assert - all failed assertions, when raised\n\
\n\
Do \"help set follow-fork-mode\" for info on debugging your program\n\
after a fork or vfork is caught.\n\n\
-Do \"help breakpoints\" for info on other commands dealing with breakpoints.");
+Do \"help breakpoints\" for info on other commands dealing with breakpoints."));
- add_com ("tcatch", class_breakpoint, tcatch_command,
- "Set temporary catchpoints to catch events.\n\
+ add_com ("tcatch", class_breakpoint, tcatch_command, _("\
+Set temporary catchpoints to catch events.\n\
Args like \"catch\" command.\n\
Like \"catch\" except the catchpoint is only temporary,\n\
so it will be deleted when hit. Equivalent to \"catch\" followed\n\
-by using \"enable delete\" on the catchpoint number.");
+by using \"enable delete\" on the catchpoint number."));
- c = add_com ("watch", class_breakpoint, watch_command,
- "Set a watchpoint for an expression.\n\
+ c = add_com ("watch", class_breakpoint, watch_command, _("\
+Set a watchpoint for an expression.\n\
A watchpoint stops execution of your program whenever the value of\n\
-an expression changes.");
+an expression changes."));
set_cmd_completer (c, location_completer);
- c = add_com ("rwatch", class_breakpoint, rwatch_command,
- "Set a read watchpoint for an expression.\n\
+ c = add_com ("rwatch", class_breakpoint, rwatch_command, _("\
+Set a read watchpoint for an expression.\n\
A watchpoint stops execution of your program whenever the value of\n\
-an expression is read.");
+an expression is read."));
set_cmd_completer (c, location_completer);
- c = add_com ("awatch", class_breakpoint, awatch_command,
- "Set a watchpoint for an expression.\n\
+ c = add_com ("awatch", class_breakpoint, awatch_command, _("\
+Set a watchpoint for an expression.\n\
A watchpoint stops execution of your program whenever the value of\n\
-an expression is either read or written.");
+an expression is either read or written."));
set_cmd_completer (c, location_completer);
add_info ("watchpoints", breakpoints_info,
- "Synonym for ``info breakpoints''.");
+ _("Synonym for ``info breakpoints''."));
- c = add_set_cmd ("can-use-hw-watchpoints", class_support, var_zinteger,
- (char *) &can_use_hw_watchpoints,
- "Set debugger's willingness to use watchpoint hardware.\n\
+ /* XXX: cagney/2005-02-23: This should be a boolean, and should
+ respond to changes - contrary to the description. */
+ add_setshow_zinteger_cmd ("can-use-hw-watchpoints", class_support,
+ &can_use_hw_watchpoints, _("\
+Set debugger's willingness to use watchpoint hardware."), _("\
+Show debugger's willingness to use watchpoint hardware."), _("\
If zero, gdb will not use hardware for new watchpoints, even if\n\
such is available. (However, any hardware watchpoints that were\n\
created before setting this to nonzero, will continue to use watchpoint\n\
-hardware.)",
- &setlist);
- deprecated_add_show_from_set (c, &showlist);
+hardware.)"),
+ NULL,
+ show_can_use_hw_watchpoints,
+ &setlist, &showlist);
can_use_hw_watchpoints = 1;
- add_prefix_cmd ("breakpoint", class_maintenance, set_breakpoint_cmd, "\
+ add_prefix_cmd ("breakpoint", class_maintenance, set_breakpoint_cmd, _("\
Breakpoint specific settings\n\
Configure various breakpoint-specific variables such as\n\
-pending breakpoint behavior",
+pending breakpoint behavior"),
&breakpoint_set_cmdlist, "set breakpoint ",
0/*allow-unknown*/, &setlist);
- add_prefix_cmd ("breakpoint", class_maintenance, show_breakpoint_cmd, "\
+ add_prefix_cmd ("breakpoint", class_maintenance, show_breakpoint_cmd, _("\
Breakpoint specific settings\n\
Configure various breakpoint-specific variables such as\n\
-pending breakpoint behavior",
+pending breakpoint behavior"),
&breakpoint_show_cmdlist, "show breakpoint ",
0/*allow-unknown*/, &showlist);
pending breakpoint. If off, an unrecognized breakpoint location results in\n\
an error. If auto, an unrecognized breakpoint location results in a\n\
user-query to see if a pending breakpoint should be created."),
- NULL, /* FIXME: i18n: Debugger's behavior regarding pending breakpoints is %s. */
- NULL, NULL,
+ NULL,
+ show_pending_break_support,
&breakpoint_set_cmdlist,
&breakpoint_show_cmdlist);
pending_break_support = AUTO_BOOLEAN_AUTO;
+
+ add_setshow_boolean_cmd ("auto-hw", no_class,
+ &automatic_hardware_breakpoints, _("\
+Set automatic usage of hardware breakpoints."), _("\
+Show automatic usage of hardware breakpoints."), _("\
+If set, the debugger will automatically use hardware breakpoints for\n\
+breakpoints set with \"break\" but falling in read-only memory. If not set,\n\
+a warning will be emitted for such breakpoints."),
+ NULL,
+ show_automatic_hardware_breakpoints,
+ &breakpoint_set_cmdlist,
+ &breakpoint_show_cmdlist);
+
+ automatic_hardware_breakpoints = 1;
}
projects / deliverable / binutils-gdb.git / blobdiff