#include "ctype.h"
#include "command.h"
#include "inferior.h"
+#include "thread.h"
#include "target.h"
#include "language.h"
#include <string.h>
/* Chain of all breakpoints defined. */
-struct breakpoint *breakpoint_chain;
+static struct breakpoint *breakpoint_chain;
/* Number of last breakpoint made. */
b->enable = disabled;
if (!disabled_breaks)
{
- fprintf (stderr,
+ target_terminal_ours_for_output ();
+ fprintf_unfiltered (gdb_stderr,
"Cannot insert breakpoint %d:\n", b->number);
printf_filtered ("Disabling shared library breakpoints:\n");
}
else
#endif
{
- fprintf (stderr, "Cannot insert breakpoint %d:\n", b->number);
+ target_terminal_ours_for_output ();
+ fprintf_unfiltered (gdb_stderr, "Cannot insert breakpoint %d:\n", b->number);
#ifdef ONE_PROCESS_WRITETEXT
- fprintf (stderr,
+ fprintf_unfiltered (gdb_stderr,
"The same program may be running in another process.\n");
#endif
memory_error (val, b->address); /* which bombs us out */
register struct breakpoint *b;
int val;
-#ifdef BREAKPOINT_DEBUG
- printf ("Removing breakpoints.\n");
-#endif /* BREAKPOINT_DEBUG */
-
ALL_BREAKPOINTS (b)
if (b->type != bp_watchpoint && b->inserted)
{
if (val)
return val;
b->inserted = 0;
-#ifdef BREAKPOINT_DEBUG
- printf ("Removed breakpoint at %s",
- local_hex_string(b->address));
- printf (", shadow %s",
- local_hex_string(b->shadow_contents[0]));
- printf (", %s.\n",
- local_hex_string(b->shadow_contents[1]));
-#endif /* BREAKPOINT_DEBUG */
}
return 0;
}
-/* Clear the "inserted" flag in all breakpoints.
- This is done when the inferior is loaded. */
+/* Clear the "inserted" flag in all breakpoints. */
void
mark_breakpoints_out ()
b->inserted = 0;
}
+/* Clear the "inserted" flag in all breakpoints and delete any breakpoints
+ which should go away between runs of the program. */
+
+void
+breakpoint_init_inferior ()
+{
+ register struct breakpoint *b, *temp;
+
+ ALL_BREAKPOINTS_SAFE (b, temp)
+ {
+ b->inserted = 0;
+
+ /* If the call dummy breakpoint is at the entry point it will
+ cause problems when the inferior is rerun, so we better
+ get rid of it. */
+ if (b->type == bp_call_dummy)
+ delete_breakpoint (b);
+ }
+}
+
/* breakpoint_here_p (PC) returns 1 if an enabled breakpoint exists at PC.
When continuing from a location with a breakpoint,
we actually single step once before calling insert_breakpoints. */
return 0;
}
+
+/* Return nonzero if FRAME is a dummy frame. We can't use PC_IN_CALL_DUMMY
+ because figuring out the saved SP would take too much time, at least using
+ get_saved_register on the 68k. This means that for this function to
+ work right a port must use the bp_call_dummy breakpoint. */
+
+int
+frame_in_dummy (frame)
+ FRAME frame;
+{
+ struct breakpoint *b;
+
+#ifdef CALL_DUMMY
+ ALL_BREAKPOINTS (b)
+ {
+ static unsigned LONGEST dummy[] = CALL_DUMMY;
+
+ if (b->type == bp_call_dummy
+ && b->frame == frame->frame
+
+ /* We need to check the PC as well as the frame on the sparc,
+ for signals.exp in the testsuite. */
+ && (frame->pc
+ >= (b->address
+ - sizeof (dummy) / sizeof (LONGEST) * REGISTER_SIZE))
+ && frame->pc <= b->address)
+ return 1;
+ }
+#endif /* CALL_DUMMY */
+ return 0;
+}
+
+/* breakpoint_match_thread (PC, PID) returns true if the breakpoint at PC
+ is valid for process/thread PID. */
+
+int
+breakpoint_thread_match (pc, pid)
+ CORE_ADDR pc;
+ int pid;
+{
+ struct breakpoint *b;
+ int thread;
+
+ thread = pid_to_thread_id (pid);
+
+ ALL_BREAKPOINTS (b)
+ if (b->enable != disabled
+ && b->address == pc
+ && (b->thread == -1 || b->thread == thread))
+ return 1;
+
+ return 0;
+}
+
\f
/* bpstat stuff. External routines' interfaces are documented
in breakpoint.h. */
if (bs->old_val != NULL)
{
printf_filtered ("\nWatchpoint %d, ", bs->breakpoint_at->number);
- print_expression (bs->breakpoint_at->exp, stdout);
+ print_expression (bs->breakpoint_at->exp, gdb_stdout);
printf_filtered ("\nOld value = ");
- value_print (bs->old_val, stdout, 0, Val_pretty_default);
+ value_print (bs->old_val, gdb_stdout, 0, Val_pretty_default);
printf_filtered ("\nNew value = ");
- value_print (bs->breakpoint_at->val, stdout, 0,
+ value_print (bs->breakpoint_at->val, gdb_stdout, 0,
Val_pretty_default);
printf_filtered ("\n");
value_free (bs->old_val);
{
/* We use value_{,free_to_}mark because it could be a
*long* time before we return to the command level and
- call free_all_values. */
- /* But couldn't we just call free_all_values instead? */
+ call free_all_values. We can't call free_all_values because
+ we might be in the middle of evaluating a function call. */
value mark = value_mark ();
value new_val = evaluate_expression (bs->breakpoint_at->exp);
return -1;
}
+/* Get a bpstat associated with having just stopped at address *PC
+ and frame address FRAME_ADDRESS. Update *PC to point at the
+ breakpoint (if we hit a breakpoint). NOT_A_BREAKPOINT is nonzero
+ if this is known to not be a real breakpoint (it could still be a
+ watchpoint, though). */
+
/* Determine whether we stopped at a breakpoint, etc, or whether we
don't understand this stop. Result is a chain of bpstat's such that:
if we don't understand the stop, the result is a null pointer.
- if we understand why we stopped, the result is not null, and
- the first element of the chain contains summary "stop" and
- "print" flags for the whole chain.
+ if we understand why we stopped, the result is not null.
Each element of the chain refers to a particular breakpoint or
watchpoint at which we have stopped. (We may have stopped for
*/
-
bpstat
-bpstat_stop_status (pc, frame_address)
+bpstat_stop_status (pc, frame_address, not_a_breakpoint)
CORE_ADDR *pc;
FRAME_ADDR frame_address;
+ int not_a_breakpoint;
{
register struct breakpoint *b;
CORE_ADDR bp_addr;
if (b->type != bp_watchpoint && b->address != bp_addr)
continue;
+ if (b->type != bp_watchpoint && not_a_breakpoint)
+ continue;
+
/* Come here if it's a watchpoint, or if the break address matches */
bs = bpstat_alloc (b, bs); /* Alloc a bpstat to explain stop */
/* We hit the longjmp_resume breakpoint. */
long_resume,
+ /* We hit the step_resume breakpoint. */
+ step_resume,
+
/* This is just used to count how many enums there are. */
class_last
};
#define setlr BPSTAT_WHAT_SET_LONGJMP_RESUME
#define clrlr BPSTAT_WHAT_CLEAR_LONGJMP_RESUME
#define clrlrs BPSTAT_WHAT_CLEAR_LONGJMP_RESUME_SINGLE
+#define sr BPSTAT_WHAT_STEP_RESUME
+
/* "Can't happen." Might want to print an error message.
abort() is not out of the question, but chances are GDB is just
a bit confused, not unusable. */
(BPSTAT_WHAT_SINGLE type stuff) is handled in proceed() without
reference to how we stopped. We retain separate wp_silent and bp_silent
codes in case we want to change that someday. */
+
+ /* step_resume entries: a step resume breakpoint overrides another
+ breakpoint of signal handling (see comment in wait_for_inferior
+ at first IN_SIGTRAMP where we set the step_resume breakpoint). */
+
static const enum bpstat_what_main_action
table[(int)class_last][(int)BPSTAT_WHAT_LAST] =
{
/* old action */
- /* keep_c stop_s stop_n single setlr clrlr clrlrs */
-
-/*no_effect*/ {keep_c, stop_s, stop_n, single, setlr , clrlr , clrlrs},
-/*wp_silent*/ {stop_s, stop_s, stop_n, stop_s, stop_s, stop_s, stop_s},
-/*wp_noisy*/ {stop_n, stop_n, stop_n, stop_n, stop_n, stop_n, stop_n},
-/*bp_nostop*/ {single, stop_s, stop_n, single, setlr , clrlrs, clrlrs},
-/*bp_silent*/ {stop_s, stop_s, stop_n, stop_s, stop_s, stop_s, stop_s},
-/*bp_noisy*/ {stop_n, stop_n, stop_n, stop_n, stop_n, stop_n, stop_n},
-/*long_jump*/ {setlr , stop_s, stop_n, setlr , err , err , err },
-/*long_resume*/ {clrlr , stop_s, stop_n, clrlrs, err , err , err }
+ /* keep_c stop_s stop_n single setlr clrlr clrlrs sr */
+
+/*no_effect*/ {keep_c, stop_s, stop_n, single, setlr , clrlr , clrlrs, sr},
+/*wp_silent*/ {stop_s, stop_s, stop_n, stop_s, stop_s, stop_s, stop_s, sr},
+/*wp_noisy*/ {stop_n, stop_n, stop_n, stop_n, stop_n, stop_n, stop_n, sr},
+/*bp_nostop*/ {single, stop_s, stop_n, single, setlr , clrlrs, clrlrs, sr},
+/*bp_silent*/ {stop_s, stop_s, stop_n, stop_s, stop_s, stop_s, stop_s, sr},
+/*bp_noisy*/ {stop_n, stop_n, stop_n, stop_n, stop_n, stop_n, stop_n, sr},
+/*long_jump*/ {setlr , stop_s, stop_n, setlr , err , err , err , sr},
+/*long_resume*/ {clrlr , stop_s, stop_n, clrlrs, err , err , err , sr},
+/*step_resume*/ {sr , sr , sr , sr , sr , sr , sr , sr}
};
#undef keep_c
#undef stop_s
enum bpstat_what_main_action current_action = BPSTAT_WHAT_KEEP_CHECKING;
struct bpstat_what retval;
+ retval.call_dummy = 0;
for (; bs != NULL; bs = bs->next)
{
enum class bs_class = no_effect;
if (bs->stop)
{
#endif
- retval.step_resume = 1;
- /* We don't handle this via the main_action. */
- bs_class = no_effect;
+ bs_class = step_resume;
#if 0
}
else
switch (b->type)
{
case bp_watchpoint:
- print_expression (b->exp, stdout);
+ print_expression (b->exp, gdb_stdout);
break;
case bp_breakpoint:
case bp_step_resume:
case bp_call_dummy:
if (addressprint)
- printf_filtered ("%s ", local_hex_string_custom(b->address, "08"));
+ printf_filtered ("%s ", local_hex_string_custom ((unsigned long) b->address, "08l"));
last_addr = b->address;
if (b->source_file)
sym = find_pc_function (b->address);
if (sym)
{
- fputs_filtered ("in ", stdout);
- fputs_filtered (SYMBOL_SOURCE_NAME (sym), stdout);
+ fputs_filtered ("in ", gdb_stdout);
+ fputs_filtered (SYMBOL_SOURCE_NAME (sym), gdb_stdout);
wrap_here (wrap_indent);
- fputs_filtered (" at ", stdout);
+ fputs_filtered (" at ", gdb_stdout);
}
- fputs_filtered (b->source_file, stdout);
+ fputs_filtered (b->source_file, gdb_stdout);
printf_filtered (":%d", b->line_number);
}
else
- print_address_symbolic (b->address, stdout, demangle, " ");
+ print_address_symbolic (b->address, gdb_stdout, demangle, " ");
break;
}
printf_filtered ("\n");
if (b->frame)
- printf_filtered ("\tstop only in stack frame at %s\n",
- local_hex_string(b->frame));
+ {
+ printf_filtered ("\tstop only in stack frame at ");
+ print_address_numeric (b->frame, gdb_stdout);
+ printf_filtered ("\n");
if (b->cond)
{
printf_filtered ("\tstop only if ");
- print_expression (b->cond, stdout);
+ print_expression (b->cond, gdb_stdout);
printf_filtered ("\n");
}
if (b->ignore_count)
if ((l = b->commands))
while (l)
{
- fputs_filtered ("\t", stdout);
- fputs_filtered (l->line, stdout);
- fputs_filtered ("\n", stdout);
+ fputs_filtered ("\t", gdb_stdout);
+ fputs_filtered (l->line, gdb_stdout);
+ fputs_filtered ("\n", gdb_stdout);
l = l->next;
}
}
others++;
if (others > 0)
{
- printf ("Note: breakpoint%s ", (others > 1) ? "s" : "");
+ printf_filtered ("Note: breakpoint%s ", (others > 1) ? "s" : "");
ALL_BREAKPOINTS (b)
if (b->address == pc)
{
others--;
- printf ("%d%s%s ",
- b->number,
- (b->enable == disabled) ? " (disabled)" : "",
- (others > 1) ? "," : ((others == 1) ? " and" : ""));
+ printf_filtered
+ ("%d%s%s ",
+ b->number,
+ (b->enable == disabled) ? " (disabled)" : "",
+ (others > 1) ? "," : ((others == 1) ? " and" : ""));
}
- printf ("also set at pc %s.\n", local_hex_string(pc));
+ printf_filtered ("also set at pc ");
+ print_address_numeric (pc, gdb_stdout);
+ printf_filtered (".\n");
}
}
\f
else
b->source_file = savestring (sal.symtab->filename,
strlen (sal.symtab->filename));
+ b->thread = -1;
b->line_number = sal.line;
b->enable = enabled;
b->next = 0;
{
case bp_watchpoint:
printf_filtered ("Watchpoint %d: ", b->number);
- print_expression (b->exp, stdout);
+ print_expression (b->exp, gdb_stdout);
break;
case bp_breakpoint:
- printf_filtered ("Breakpoint %d at %s", b->number,
- local_hex_string(b->address));
+ printf_filtered ("Breakpoint %d at ", b->number);
+ print_address_numeric (b->address);
if (b->source_file)
printf_filtered (": file %s, line %d.",
b->source_file, b->line_number);
case bp_longjmp:
case bp_longjmp_resume:
case bp_step_resume:
+ case bp_call_dummy:
break;
}
printf_filtered ("\n");
struct cleanup *old_chain;
struct cleanup *canonical_strings_chain = NULL;
char **canonical = (char **)NULL;
-
int i;
+ int thread;
sals.sals = NULL;
sals.nelts = 0;
}
}
+ thread = -1; /* No specific thread yet */
+
/* Resolve all line numbers to PC's, and verify that conditions
can be parsed, before setting any breakpoints. */
for (i = 0; i < sals.nelts; i++)
{
+ char *tok, *end_tok;
+ int toklen;
+
resolve_sal_pc (&sals.sals[i]);
- while (arg && *arg)
+ tok = arg;
+
+ while (tok && *tok)
{
- if (arg[0] == 'i' && arg[1] == 'f'
- && (arg[2] == ' ' || arg[2] == '\t'))
+ while (*tok == ' ' || *tok == '\t')
+ tok++;
+
+ end_tok = tok;
+
+ while (*end_tok != ' ' && *end_tok != '\t' && *end_tok != '\000')
+ end_tok++;
+
+ toklen = end_tok - tok;
+
+ if (toklen >= 1 && strncmp (tok, "if", toklen) == 0)
{
- arg += 2;
- cond_start = arg;
- cond = parse_exp_1 (&arg, block_for_pc (sals.sals[i].pc), 0);
- cond_end = arg;
+ tok = cond_start = end_tok + 1;
+ cond = parse_exp_1 (&tok, block_for_pc (sals.sals[i].pc), 0);
+ cond_end = tok;
+ }
+ else if (toklen >= 1 && strncmp (tok, "thread", toklen) == 0)
+ {
+ char *tmptok;
+
+ tok = end_tok + 1;
+ tmptok = tok;
+ thread = strtol (tok, &tok, 0);
+ if (tok == tmptok)
+ error ("Junk after thread keyword.");
+ if (!valid_thread_id (thread))
+ error ("Unknown thread %d\n", thread);
}
else
error ("Junk at end of arguments.");
b->number = breakpoint_count;
b->type = bp_breakpoint;
b->cond = cond;
+ b->thread = thread;
/* If a canonical line spec is needed use that instead of the
command string. */
if (sals.nelts > 1)
{
- printf ("Multiple breakpoints were set.\n");
- printf ("Use the \"delete\" command to delete unwanted breakpoints.\n");
+ printf_filtered ("Multiple breakpoints were set.\n");
+ printf_filtered ("Use the \"delete\" command to delete unwanted breakpoints.\n");
}
do_cleanups (old_chain);
}
make_cleanup(delete_breakpoint, breakpoint);
}
- proceed (-1, -1, 0);
+ proceed (-1, TARGET_SIGNAL_DEFAULT, 0);
do_cleanups(old_chain);
}
\f
goto win;
}
#endif
- printf ("No catch clause for exception %s.\n", p);
+ printf_unfiltered ("No catch clause for exception %s.\n", p);
#if 0
win:
#endif
if (sals.nelts > 1)
{
- printf ("Multiple breakpoints were set.\n");
- printf ("Use the \"delete\" command to delete unwanted breakpoints.\n");
+ printf_unfiltered ("Multiple breakpoints were set.\n");
+ printf_unfiltered ("Use the \"delete\" command to delete unwanted breakpoints.\n");
}
free ((PTR)sals.sals);
}
}
if (found->next) from_tty = 1; /* Always report if deleted more than one */
- if (from_tty) printf ("Deleted breakpoint%s ", found->next ? "s" : "");
+ if (from_tty) printf_unfiltered ("Deleted breakpoint%s ", found->next ? "s" : "");
while (found)
{
- if (from_tty) printf ("%d ", found->number);
+ if (from_tty) printf_unfiltered ("%d ", found->number);
b1 = found->next;
delete_breakpoint (found);
found = b1;
}
- if (from_tty) putchar ('\n');
+ if (from_tty) putchar_unfiltered ('\n');
}
free ((PTR)sals.sals);
}
bpstat bs;
{
for (; bs; bs = bs->next)
- if (bs->breakpoint_at && bs->breakpoint_at->disposition == delete)
+ if (bs->breakpoint_at && bs->breakpoint_at->disposition == delete
+ && bs->stop)
delete_breakpoint (bs->breakpoint_at);
}
if (bpt->inserted)
{
ALL_BREAKPOINTS (b)
- if (b->address == bpt->address && !b->duplicate)
+ if (b->address == bpt->address
+ && !b->duplicate
+ && b->enable != disabled)
{
int val;
val = target_insert_breakpoint (b->address, b->shadow_contents);
if (val != 0)
{
- fprintf (stderr, "Cannot insert breakpoint %d:\n", b->number);
+ target_terminal_ours_for_output ();
+ fprintf_unfiltered (gdb_stderr, "Cannot insert breakpoint %d:\n", b->number);
memory_error (val, b->address); /* which bombs us out */
}
else
free (bpt->source_file);
if (xgdb_verbose && bpt->type == bp_breakpoint)
- printf ("breakpoint #%d deleted\n", bpt->number);
+ {
+ target_terminal_ours_for_output ();
+ printf_unfiltered ("breakpoint #%d deleted\n", bpt->number);
+ }
/* Be sure no bpstat's are pointing at it after it's been freed. */
- /* FIXME, how can we find all bpstat's? We just check stop_bpstat for now. */
+ /* FIXME, how can we find all bpstat's?
+ We just check stop_bpstat for now. */
for (bs = stop_bpstat; bs; bs = bs->next)
if (bs->breakpoint_at == bpt)
bs->breakpoint_at = NULL;
case bp_finish:
case bp_longjmp:
case bp_longjmp_resume:
+ case bp_call_dummy:
delete_breakpoint (b);
break;
}
function (b);
goto win;
}
- printf ("No breakpoint number %d.\n", num);
+ printf_unfiltered ("No breakpoint number %d.\n", num);
win:
p = p1;
}
bpt->enable = enabled;
if (xgdb_verbose && bpt->type == bp_breakpoint)
- printf ("breakpoint #%d enabled\n", bpt->number);
+ printf_unfiltered ("breakpoint #%d enabled\n", bpt->number);
check_duplicates (bpt->address);
if (bpt->type == bp_watchpoint)
projects / deliverable / binutils-gdb.git / blobdiff