struct event_location *
string_to_explicit_location (const char **argp,
const struct language_defn *language,
int dont_throw)
{
struct cleanup *cleanup;
struct event_location *location;
/* It is assumed that input beginning with '-' and a non-digit
character is an explicit location. "-p" is reserved, though,
for probe locations. */
if (argp == NULL
|| *argp == '\0'
|| *argp[0] != '-'
|| !isalpha ((*argp)[1])
|| ((*argp)[0] == '-' && (*argp)[1] == 'p'))
return NULL;
location = new_explicit_location (NULL);
cleanup = make_cleanup_delete_event_location (location);
/* Process option/argument pairs. dprintf_command
requires that processing stop on ','. */
while ((*argp)[0] != '\0' && (*argp)[0] != ',')
{
int len;
char *opt, *oarg;
const char *start;
struct cleanup *opt_cleanup, *oarg_cleanup;
/* If *ARGP starts with a keyword, stop processing
options. */
if (linespec_lexer_lex_keyword (*argp) != NULL)
break;
/* Mark the start of the string in case we need to rewind. */
start = *argp;
/* Get the option string. */
opt = explicit_location_lex_one (argp, language);
opt_cleanup = make_cleanup (xfree, opt);
*argp = skip_spaces_const (*argp);
/* Get the argument string. */
oarg = explicit_location_lex_one (argp, language);
oarg_cleanup = make_cleanup (xfree, oarg);
*argp = skip_spaces_const (*argp);
/* Use the length of the option to allow abbreviations. */
len = strlen (opt);
/* All options have a required argument. Checking for this required
argument is deferred until later. */
if (strncmp (opt, "-source", len) == 0)
EL_EXPLICIT (location)->source_filename = oarg;
else if (strncmp (opt, "-function", len) == 0)
EL_EXPLICIT (location)->function_name = oarg;
else if (strncmp (opt, "-line", len) == 0)
{
if (oarg != NULL)
{
EL_EXPLICIT (location)->line_offset
= linespec_parse_line_offset (oarg);
do_cleanups (oarg_cleanup);
do_cleanups (opt_cleanup);
continue;
}
}
else if (strncmp (opt, "-label", len) == 0)
EL_EXPLICIT (location)->label_name = oarg;
/* Only emit an "invalid argument" error for options
that look like option strings. */
else if (opt[0] == '-' && !isdigit (opt[1]))
{
if (!dont_throw)
error (_("invalid explicit location argument, \"%s\""), opt);
}
else
{
/* End of the explicit location specification.
Stop parsing and return whatever explicit location was
parsed. */
*argp = start;
discard_cleanups (oarg_cleanup);
do_cleanups (opt_cleanup);
discard_cleanups (cleanup);
return location;
}
/* It's a little lame to error after the fact, but in this
case, it provides a much better user experience to issue
the "invalid argument" error before any missing
argument error. */
if (oarg == NULL && !dont_throw)
error (_("missing argument for \"%s\""), opt);
/* The option/argument pair was successfully processed;
oarg belongs to the explicit location, and opt should
be freed. */
discard_cleanups (oarg_cleanup);
do_cleanups (opt_cleanup);
}
/* One special error check: If a source filename was given
without offset, function, or label, issue an error. */
if (EL_EXPLICIT (location)->source_filename != NULL
&& EL_EXPLICIT (location)->function_name == NULL
&& EL_EXPLICIT (location)->label_name == NULL
&& (EL_EXPLICIT (location)->line_offset.sign == LINE_OFFSET_UNKNOWN)
&& !dont_throw)
{
error (_("Source filename requires function, label, or "
"line offset."));
}
discard_cleanups (cleanup);
return location;
}
static SCM
gdbscm_register_breakpoint_x (SCM self)
{
breakpoint_smob *bp_smob
= bpscm_get_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
struct gdb_exception except = exception_none;
char *location, *copy;
struct event_location *eloc;
struct cleanup *cleanup;
/* We only support registering breakpoints created with make-breakpoint. */
if (!bp_smob->is_scheme_bkpt)
scm_misc_error (FUNC_NAME, _("not a Scheme breakpoint"), SCM_EOL);
if (bpscm_is_valid (bp_smob))
scm_misc_error (FUNC_NAME, _("breakpoint is already registered"), SCM_EOL);
pending_breakpoint_scm = self;
location = bp_smob->spec.location;
copy = location;
eloc = new_linespec_location (©);
cleanup = make_cleanup_delete_event_location (eloc);
TRY
{
int internal = bp_smob->spec.is_internal;
switch (bp_smob->spec.type)
{
case bp_breakpoint:
{
create_breakpoint (get_current_arch (),
eloc, NULL, -1, NULL,
0,
0, bp_breakpoint,
0,
AUTO_BOOLEAN_TRUE,
&bkpt_breakpoint_ops,
0, 1, internal, 0);
break;
}
case bp_watchpoint:
{
enum target_hw_bp_type access_type = bp_smob->spec.access_type;
if (access_type == hw_write)
watch_command_wrapper (location, 0, internal);
else if (access_type == hw_access)
awatch_command_wrapper (location, 0, internal);
else if (access_type == hw_read)
rwatch_command_wrapper (location, 0, internal);
else
gdb_assert_not_reached ("invalid access type");
break;
}
default:
gdb_assert_not_reached ("invalid breakpoint type");
}
}
CATCH (ex, RETURN_MASK_ALL)
{
except = ex;
}
END_CATCH
/* Ensure this gets reset, even if there's an error. */
pending_breakpoint_scm = SCM_BOOL_F;
GDBSCM_HANDLE_GDB_EXCEPTION (except);
do_cleanups (cleanup);
return SCM_UNSPECIFIED;
}
static void
mi_cmd_break_insert_1 (int dprintf, char *command, char **argv, int argc)
{
char *address = NULL;
int hardware = 0;
int temp_p = 0;
int thread = -1;
int ignore_count = 0;
char *condition = NULL;
int pending = 0;
int enabled = 1;
int tracepoint = 0;
struct cleanup *back_to = make_cleanup (null_cleanup, NULL);
enum bptype type_wanted;
struct event_location *location;
struct breakpoint_ops *ops;
int is_explicit = 0;
struct explicit_location explicit_loc;
char *extra_string = NULL;
enum opt
{
HARDWARE_OPT, TEMP_OPT, CONDITION_OPT,
IGNORE_COUNT_OPT, THREAD_OPT, PENDING_OPT, DISABLE_OPT,
TRACEPOINT_OPT,
EXPLICIT_SOURCE_OPT, EXPLICIT_FUNC_OPT,
EXPLICIT_LABEL_OPT, EXPLICIT_LINE_OPT
};
static const struct mi_opt opts[] =
{
{"h", HARDWARE_OPT, 0},
{"t", TEMP_OPT, 0},
{"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},
{"-source" , EXPLICIT_SOURCE_OPT, 1},
{"-function", EXPLICIT_FUNC_OPT, 1},
{"-label", EXPLICIT_LABEL_OPT, 1},
{"-line", EXPLICIT_LINE_OPT, 1},
{ 0, 0, 0 }
};
/* Parse arguments. It could be -r or -h or -t, <location> or ``--''
to denote the end of the option list. */
int oind = 0;
char *oarg;
initialize_explicit_location (&explicit_loc);
while (1)
{
int opt = mi_getopt ("-break-insert", argc, argv,
opts, &oind, &oarg);
if (opt < 0)
break;
switch ((enum opt) opt)
{
case TEMP_OPT:
temp_p = 1;
break;
case HARDWARE_OPT:
hardware = 1;
break;
case CONDITION_OPT:
condition = oarg;
break;
case IGNORE_COUNT_OPT:
ignore_count = atol (oarg);
break;
case THREAD_OPT:
thread = atol (oarg);
break;
case PENDING_OPT:
pending = 1;
break;
case DISABLE_OPT:
enabled = 0;
break;
case TRACEPOINT_OPT:
tracepoint = 1;
break;
case EXPLICIT_SOURCE_OPT:
is_explicit = 1;
explicit_loc.source_filename = oarg;
break;
case EXPLICIT_FUNC_OPT:
is_explicit = 1;
explicit_loc.function_name = oarg;
break;
case EXPLICIT_LABEL_OPT:
is_explicit = 1;
explicit_loc.label_name = oarg;
break;
case EXPLICIT_LINE_OPT:
is_explicit = 1;
explicit_loc.line_offset = linespec_parse_line_offset (oarg);
break;
}
}
if (oind >= argc && !is_explicit)
error (_("-%s-insert: Missing <location>"),
dprintf ? "dprintf" : "break");
if (dprintf)
{
int format_num = is_explicit ? oind : oind + 1;
if (hardware || tracepoint)
error (_("-dprintf-insert: does not support -h or -a"));
if (format_num >= argc)
error (_("-dprintf-insert: Missing <format>"));
extra_string = mi_argv_to_format (argv + format_num, argc - format_num);
make_cleanup (xfree, extra_string);
address = argv[oind];
}
else
{
if (is_explicit)
{
if (oind < argc)
error (_("-break-insert: Garbage following explicit location"));
}
else
{
if (oind < argc - 1)
error (_("-break-insert: Garbage following <location>"));
address = argv[oind];
}
}
/* Now we have what we need, let's insert the breakpoint! */
setup_breakpoint_reporting ();
if (tracepoint)
{
/* 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 = hardware ? bp_fast_tracepoint : bp_tracepoint;
ops = &tracepoint_breakpoint_ops;
}
else if (dprintf)
{
type_wanted = bp_dprintf;
ops = &dprintf_breakpoint_ops;
}
else
{
type_wanted = hardware ? bp_hardware_breakpoint : bp_breakpoint;
ops = &bkpt_breakpoint_ops;
}
if (is_explicit)
{
/* Error check -- we must have one of the other
parameters specified. */
if (explicit_loc.source_filename != NULL
&& explicit_loc.function_name == NULL
&& explicit_loc.label_name == NULL
&& explicit_loc.line_offset.sign == LINE_OFFSET_UNKNOWN)
error (_("-%s-insert: --source option requires --function, --label,"
" or --line"), dprintf ? "dprintf" : "break");
location = new_explicit_location (&explicit_loc);
}
else
{
location = string_to_event_location_basic (&address, current_language);
if (*address)
{
delete_event_location (location);
error (_("Garbage '%s' at end of location"), address);
}
}
make_cleanup_delete_event_location (location);
create_breakpoint (get_current_arch (), location, condition, thread,
extra_string,
0 /* condition and thread are valid. */,
temp_p, type_wanted,
ignore_count,
pending ? AUTO_BOOLEAN_TRUE : AUTO_BOOLEAN_FALSE,
ops, 0, enabled, 0, 0);
do_cleanups (back_to);
}
