/* MI Command Set - breakpoint and watchpoint commands.
- Copyright (C) 2000, 2001, 2002, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2001, 2002, 2007, 2008, 2009, 2010, 2011
+ Free Software Foundation, Inc.
Contributed by Cygnus Solutions (a Red Hat company).
This file is part of GDB.
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
+#include "arch-utils.h"
#include "mi-cmds.h"
#include "ui-out.h"
#include "mi-out.h"
#include "breakpoint.h"
#include "gdb_string.h"
#include "mi-getopt.h"
-#include "gdb-events.h"
#include "gdb.h"
+#include "exceptions.h"
+#include "observer.h"
+#include "mi-main.h"
enum
{
FROM_TTY = 0
};
-/* Output a single breakpoint. */
+/* True if MI breakpoint observers have been registered. */
-static void
-breakpoint_notify (int b)
-{
- gdb_breakpoint_query (uiout, b, NULL);
-}
+static int mi_breakpoint_observers_installed;
+/* Control whether breakpoint_notify may act. */
-struct gdb_events breakpoint_hooks =
-{
- breakpoint_notify,
- breakpoint_notify,
- breakpoint_notify,
-};
+static int mi_can_breakpoint_notify;
+
+/* Output a single breakpoint, when allowed. */
+static void
+breakpoint_notify (struct breakpoint *b)
+{
+ if (mi_can_breakpoint_notify)
+ gdb_breakpoint_query (current_uiout, b->number, NULL);
+}
enum bp_type
{
REGEXP_BP
};
-/* Insert a breakpoint. The type of breakpoint is specified by the
- first argument: -break-insert <location> --> insert a regular
- breakpoint. -break-insert -t <location> --> insert a temporary
- breakpoint. -break-insert -h <location> --> insert an hardware
- breakpoint. -break-insert -t -h <location> --> insert a temporary
- hw bp.
- -break-insert -r <regexp> --> insert a bp at functions matching
- <regexp> */
+/* Implements the -break-insert command.
+ See the MI manual for the list of possible options. */
-enum mi_cmd_result
+void
mi_cmd_break_insert (char *command, char **argv, int argc)
{
char *address = NULL;
- enum bp_type type = REG_BP;
+ int hardware = 0;
int temp_p = 0;
int thread = -1;
int ignore_count = 0;
char *condition = NULL;
- enum gdb_rc rc;
- struct gdb_events *old_hooks;
+ int pending = 0;
+ int enabled = 1;
+ int tracepoint = 0;
+ struct cleanup *back_to;
+ enum bptype type_wanted;
+
enum opt
{
- HARDWARE_OPT, TEMP_OPT /*, REGEXP_OPT */ , CONDITION_OPT,
- IGNORE_COUNT_OPT, THREAD_OPT
+ HARDWARE_OPT, TEMP_OPT, CONDITION_OPT,
+ IGNORE_COUNT_OPT, THREAD_OPT, PENDING_OPT, DISABLE_OPT,
+ TRACEPOINT_OPT,
};
static struct mi_opt opts[] =
{
{"c", CONDITION_OPT, 1},
{"i", IGNORE_COUNT_OPT, 1},
{"p", THREAD_OPT, 1},
+ {"f", PENDING_OPT, 0},
+ {"d", DISABLE_OPT, 0},
+ {"a", TRACEPOINT_OPT, 0},
{ 0, 0, 0 }
};
to denote the end of the option list. */
int optind = 0;
char *optarg;
+
while (1)
{
- int opt = mi_getopt ("mi_cmd_break_insert", argc, argv, opts, &optind, &optarg);
+ int opt = mi_getopt ("-break-insert", argc, argv,
+ opts, &optind, &optarg);
if (opt < 0)
break;
switch ((enum opt) opt)
temp_p = 1;
break;
case HARDWARE_OPT:
- type = HW_BP;
+ hardware = 1;
break;
-#if 0
- case REGEXP_OPT:
- type = REGEXP_BP;
- break;
-#endif
case CONDITION_OPT:
condition = optarg;
break;
case THREAD_OPT:
thread = atol (optarg);
break;
+ case PENDING_OPT:
+ pending = 1;
+ break;
+ case DISABLE_OPT:
+ enabled = 0;
+ break;
+ case TRACEPOINT_OPT:
+ tracepoint = 1;
+ break;
}
}
if (optind >= argc)
- error (_("mi_cmd_break_insert: Missing <location>"));
+ error (_("-break-insert: Missing <location>"));
if (optind < argc - 1)
- error (_("mi_cmd_break_insert: Garbage following <location>"));
+ error (_("-break-insert: Garbage following <location>"));
address = argv[optind];
/* Now we have what we need, let's insert the breakpoint! */
- old_hooks = deprecated_set_gdb_event_hooks (&breakpoint_hooks);
- switch (type)
+ if (! mi_breakpoint_observers_installed)
{
- case REG_BP:
- rc = gdb_breakpoint (address, condition,
- 0 /*hardwareflag */ , temp_p,
- thread, ignore_count,
- &mi_error_message);
- break;
- case HW_BP:
- rc = gdb_breakpoint (address, condition,
- 1 /*hardwareflag */ , temp_p,
- thread, ignore_count,
- &mi_error_message);
- break;
-#if 0
- case REGEXP_BP:
- if (temp_p)
- error (_("mi_cmd_break_insert: Unsupported tempoary regexp breakpoint"));
- else
- rbreak_command_wrapper (address, FROM_TTY);
- return MI_CMD_DONE;
- break;
-#endif
- default:
- internal_error (__FILE__, __LINE__,
- _("mi_cmd_break_insert: Bad switch."));
+ observer_attach_breakpoint_created (breakpoint_notify);
+ mi_breakpoint_observers_installed = 1;
}
- deprecated_set_gdb_event_hooks (old_hooks);
- if (rc == GDB_RC_FAIL)
- return MI_CMD_ERROR;
- else
- return MI_CMD_DONE;
+ back_to = make_cleanup_restore_integer (&mi_can_breakpoint_notify);
+ mi_can_breakpoint_notify = 1;
+
+ /* Note that to request a fast tracepoint, the client uses the
+ "hardware" flag, although there's nothing of hardware related to
+ fast tracepoints -- one can implement slow tracepoints with
+ hardware breakpoints, but fast tracepoints are always software.
+ "fast" is a misnomer, actually, "jump" would be more appropriate.
+ A simulator or an emulator could conceivably implement fast
+ regular non-jump based tracepoints. */
+ type_wanted = (tracepoint
+ ? (hardware ? bp_fast_tracepoint : bp_tracepoint)
+ : (hardware ? bp_hardware_breakpoint : bp_breakpoint));
+
+ create_breakpoint (get_current_arch (), address, condition, thread,
+ 0 /* condition and thread are valid. */,
+ temp_p, type_wanted,
+ ignore_count,
+ pending ? AUTO_BOOLEAN_TRUE : AUTO_BOOLEAN_FALSE,
+ &bkpt_breakpoint_ops, 0, enabled, 0);
+ do_cleanups (back_to);
+
}
enum wp_type
ACCESS_WP
};
+void
+mi_cmd_break_passcount (char *command, char **argv, int argc)
+{
+ int n;
+ int p;
+ struct tracepoint *t;
+
+ if (argc != 2)
+ error (_("Usage: tracepoint-number passcount"));
+
+ n = atoi (argv[0]);
+ p = atoi (argv[1]);
+ t = get_tracepoint (n);
+
+ if (t)
+ {
+ t->pass_count = p;
+ observer_notify_tracepoint_modified (n);
+ }
+ else
+ {
+ error (_("Cound not find tracepoint %d"), n);
+ }
+}
+
/* Insert a watchpoint. The type of watchpoint is specified by the
first argument:
-break-watch <expr> --> insert a regular wp.
-break-watch -r <expr> --> insert a read watchpoint.
-break-watch -a <expr> --> insert an access wp. */
-enum mi_cmd_result
+void
mi_cmd_break_watch (char *command, char **argv, int argc)
{
char *expr = NULL;
/* Parse arguments. */
int optind = 0;
char *optarg;
+
while (1)
{
- int opt = mi_getopt ("mi_cmd_break_watch", argc, argv, opts, &optind, &optarg);
+ int opt = mi_getopt ("-break-watch", argc, argv,
+ opts, &optind, &optarg);
+
if (opt < 0)
break;
switch ((enum opt) opt)
}
}
if (optind >= argc)
- error (_("mi_cmd_break_watch: Missing <expression>"));
+ error (_("-break-watch: Missing <expression>"));
if (optind < argc - 1)
- error (_("mi_cmd_break_watch: Garbage following <expression>"));
+ error (_("-break-watch: Garbage following <expression>"));
expr = argv[optind];
/* Now we have what we need, let's insert the watchpoint! */
switch (type)
{
case REG_WP:
- watch_command_wrapper (expr, FROM_TTY);
+ watch_command_wrapper (expr, FROM_TTY, 0);
break;
case READ_WP:
- rwatch_command_wrapper (expr, FROM_TTY);
+ rwatch_command_wrapper (expr, FROM_TTY, 0);
break;
case ACCESS_WP:
- awatch_command_wrapper (expr, FROM_TTY);
+ awatch_command_wrapper (expr, FROM_TTY, 0);
break;
default:
- error (_("mi_cmd_break_watch: Unknown watchpoint type."));
+ error (_("-break-watch: Unknown watchpoint type."));
}
- return MI_CMD_DONE;
}
+
+/* The mi_read_next_line consults these variable to return successive
+ command lines. While it would be clearer to use a closure pointer,
+ it is not expected that any future code will use read_command_lines_1,
+ therefore no point of overengineering. */
+
+static char **mi_command_line_array;
+static int mi_command_line_array_cnt;
+static int mi_command_line_array_ptr;
+
+static char *
+mi_read_next_line (void)
+{
+ if (mi_command_line_array_ptr == mi_command_line_array_cnt)
+ return NULL;
+ else
+ return mi_command_line_array[mi_command_line_array_ptr++];
+}
+
+void
+mi_cmd_break_commands (char *command, char **argv, int argc)
+{
+ struct command_line *break_command;
+ char *endptr;
+ int bnum;
+ struct breakpoint *b;
+
+ if (argc < 1)
+ error (_("USAGE: %s <BKPT> [<COMMAND> [<COMMAND>...]]"), command);
+
+ bnum = strtol (argv[0], &endptr, 0);
+ if (endptr == argv[0])
+ error (_("breakpoint number argument \"%s\" is not a number."),
+ argv[0]);
+ else if (*endptr != '\0')
+ error (_("junk at the end of breakpoint number argument \"%s\"."),
+ argv[0]);
+
+ b = get_breakpoint (bnum);
+ if (b == NULL)
+ error (_("breakpoint %d not found."), bnum);
+
+ mi_command_line_array = argv;
+ mi_command_line_array_ptr = 1;
+ mi_command_line_array_cnt = argc;
+
+ if (is_tracepoint (b))
+ break_command = read_command_lines_1 (mi_read_next_line, 1,
+ check_tracepoint_command, b);
+ else
+ break_command = read_command_lines_1 (mi_read_next_line, 1, 0, 0);
+
+ breakpoint_set_commands (b, break_command);
+}
+
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