PR breakpoints/9352:
	* NEWS: Mention changes to `commands' and `rbreak'.
	* symtab.c (do_end_rbreak_breakpoints): New function.
	(rbreak_command): Call start_rbreak_breakpoints; arrange to call
	end_rbreak_breakpoints.
	* breakpoint.c (breakpoint_count, tracepoint_count): Now static.
	(set_breakpoint_count): Likewise.  Clear last_was_multi.
	(multi_start, multi_end, last_was_multi): New globals.
	(start_rbreak_breakpoints, end_rbreak_breakpoints): New
	functions.
	(struct commands_info): New
	(do_map_commands_command): New function.
	(commands_command_1): New function.
	(commands_command): Use it.
	(commands_from_control_command): Likewise.
	(do_delete_breakpoint): New function.
	(delete_command): Use it.
	(map_breakpoint_numbers): Add 'data' argument.  Pass to callback.
	(do_map_disable_breakpoint): New function.
	(disable_command): Use it.
	(do_map_enable_breakpoint): New function.
	(enable_command): Use it.
	(enable_once_breakpoint): Add argument.
	(enable_once_command): Update.
	(enable_delete_breakpoint): Add argument.
	(enable_delete_command): Update.
	(break_command_really): Set last_was_multi when needed.
	(check_tracepoint_command): Fix formatting.
	(validate_commands_for_breakpoint): New function.
	(breakpoint_set_commands): Use it.
	(tracepoint_save_command): Update.
	* breakpoint.h (start_rbreak_breakpoints, end_rbreak_breakpoints):
	Declare.
gdb/doc
	PR breakpoints/9352:
	* gdb.texinfo (Break Commands): Update.
gdb/testsuite
	PR breakpoints/9352:
	* gdb.base/default.exp: Update.
	* gdb.base/commands.exp: Update.
	* gdb.cp/extern-c.exp: Test setting commands on multiple
	breakpoints at once.
This commit is contained in:
Tom Tromey 2010-03-24 21:24:09 +00:00
parent 2390201f4b
commit 95a42b64a1
11 changed files with 306 additions and 101 deletions

View file

@ -1,3 +1,39 @@
2010-03-24 Tom Tromey <tromey@redhat.com>
PR breakpoints/9352:
* NEWS: Mention changes to `commands' and `rbreak'.
* symtab.c (do_end_rbreak_breakpoints): New function.
(rbreak_command): Call start_rbreak_breakpoints; arrange to call
end_rbreak_breakpoints.
* breakpoint.c (breakpoint_count, tracepoint_count): Now static.
(set_breakpoint_count): Likewise. Clear last_was_multi.
(multi_start, multi_end, last_was_multi): New globals.
(start_rbreak_breakpoints, end_rbreak_breakpoints): New
functions.
(struct commands_info): New
(do_map_commands_command): New function.
(commands_command_1): New function.
(commands_command): Use it.
(commands_from_control_command): Likewise.
(do_delete_breakpoint): New function.
(delete_command): Use it.
(map_breakpoint_numbers): Add 'data' argument. Pass to callback.
(do_map_disable_breakpoint): New function.
(disable_command): Use it.
(do_map_enable_breakpoint): New function.
(enable_command): Use it.
(enable_once_breakpoint): Add argument.
(enable_once_command): Update.
(enable_delete_breakpoint): Add argument.
(enable_delete_command): Update.
(break_command_really): Set last_was_multi when needed.
(check_tracepoint_command): Fix formatting.
(validate_commands_for_breakpoint): New function.
(breakpoint_set_commands): Use it.
(tracepoint_save_command): Update.
* breakpoint.h (start_rbreak_breakpoints, end_rbreak_breakpoints):
Declare.
2010-03-24 Tom Tromey <tromey@redhat.com>
* breakpoint.h (struct counted_command_line): New struct.

View file

@ -13,6 +13,10 @@
16-bit word register AX that are actually portions of the 32-bit
register EAX or 64-bit register RAX.
* The `commands' command now accepts a range of breakpoints to modify.
A plain `commands' following an `rbreak' will affect all the
breakpoints set by `rbreak'.
* Python scripting
** The GDB Python API now has access to symbols, symbol tables, and

View file

@ -79,17 +79,15 @@
static void enable_delete_command (char *, int);
static void enable_delete_breakpoint (struct breakpoint *);
static void enable_once_command (char *, int);
static void enable_once_breakpoint (struct breakpoint *);
static void disable_command (char *, int);
static void enable_command (char *, int);
static void map_breakpoint_numbers (char *, void (*)(struct breakpoint *));
static void map_breakpoint_numbers (char *, void (*) (struct breakpoint *,
void *),
void *);
static void ignore_command (char *, int);
@ -146,8 +144,6 @@ static void condition_command (char *, int);
static int get_number_trailer (char **, int);
void set_breakpoint_count (int);
typedef enum
{
mark_inserted,
@ -392,11 +388,19 @@ VEC(bp_location_p) *moribund_locations = NULL;
/* Number of last breakpoint made. */
int breakpoint_count;
static int breakpoint_count;
/* If the last command to create a breakpoint created multiple
breakpoints, this holds the start and end breakpoint numbers. */
static int multi_start;
static int multi_end;
/* True if the last breakpoint set was part of a group set with a
single command, e.g., "rbreak". */
static int last_was_multi;
/* Number of last tracepoint made. */
int tracepoint_count;
static int tracepoint_count;
/* Return whether a breakpoint is an active enabled breakpoint. */
static int
@ -407,13 +411,34 @@ breakpoint_enabled (struct breakpoint *b)
/* Set breakpoint count to NUM. */
void
static void
set_breakpoint_count (int num)
{
breakpoint_count = num;
last_was_multi = 0;
set_internalvar_integer (lookup_internalvar ("bpnum"), num);
}
/* Called at the start an "rbreak" command to record the first
breakpoint made. */
void
start_rbreak_breakpoints (void)
{
multi_start = breakpoint_count + 1;
}
/* Called at the end of an "rbreak" command to record the last
breakpoint made. */
void
end_rbreak_breakpoints (void)
{
if (breakpoint_count >= multi_start)
{
multi_end = breakpoint_count;
last_was_multi = 1;
}
}
/* Used in run_command to zero the hit count when a new run starts. */
void
@ -792,12 +817,13 @@ breakpoint_is_tracepoint (const struct breakpoint *b)
}
}
/* Set the command list of B to COMMANDS. If breakpoint is tracepoint,
validate that only allowed commands are included.
*/
/* A helper function that validsates that COMMANDS are valid for a
breakpoint. This function will throw an exception if a problem is
found. */
void
breakpoint_set_commands (struct breakpoint *b, struct command_line *commands)
static void
validate_commands_for_breakpoint (struct breakpoint *b,
struct command_line *commands)
{
if (breakpoint_is_tracepoint (b))
{
@ -839,6 +865,16 @@ breakpoint_set_commands (struct breakpoint *b, struct command_line *commands)
{
check_no_tracepoint_commands (commands);
}
}
/* Set the command list of B to COMMANDS. If breakpoint is tracepoint,
validate that only allowed commands are included.
*/
void
breakpoint_set_commands (struct breakpoint *b, struct command_line *commands)
{
validate_commands_for_breakpoint (b, commands);
decref_counted_command_line (&b->commands);
b->commands = alloc_counted_command_line (commands);
@ -846,43 +882,100 @@ breakpoint_set_commands (struct breakpoint *b, struct command_line *commands)
observer_notify_breakpoint_modified (b->number);
}
void check_tracepoint_command (char *line, void *closure)
void
check_tracepoint_command (char *line, void *closure)
{
struct breakpoint *b = closure;
validate_actionline (&line, b);
}
/* A structure used to pass information through
map_breakpoint_numbers. */
struct commands_info
{
/* True if the command was typed at a tty. */
int from_tty;
/* Non-NULL if the body of the commands are being read from this
already-parsed command. */
struct command_line *control;
/* The command lines read from the user, or NULL if they have not
yet been read. */
struct counted_command_line *cmd;
};
/* A callback for map_breakpoint_numbers that sets the commands for
commands_command. */
static void
do_map_commands_command (struct breakpoint *b, void *data)
{
struct commands_info *info = data;
if (info->cmd == NULL)
{
struct command_line *l;
if (info->control != NULL)
l = copy_command_lines (info->control->body_list[0]);
else
l = read_command_lines (_("Type commands for all specified breakpoints"),
info->from_tty, 1,
(breakpoint_is_tracepoint (b)
? check_tracepoint_command : 0),
b);
info->cmd = alloc_counted_command_line (l);
}
/* If a breakpoint was on the list more than once, we don't need to
do anything. */
if (b->commands != info->cmd)
{
validate_commands_for_breakpoint (b, info->cmd->commands);
incref_counted_command_line (info->cmd);
decref_counted_command_line (&b->commands);
b->commands = info->cmd;
breakpoints_changed ();
observer_notify_breakpoint_modified (b->number);
}
}
static void
commands_command_1 (char *arg, int from_tty, struct command_line *control)
{
struct cleanup *cleanups;
struct commands_info info;
info.from_tty = from_tty;
info.control = control;
info.cmd = NULL;
/* If we read command lines from the user, then `info' will hold an
extra reference to the commands that we must clean up. */
cleanups = make_cleanup_decref_counted_command_line (&info.cmd);
if (arg == NULL || !*arg)
{
if (last_was_multi)
arg = xstrprintf ("%d-%d", multi_start, multi_end);
else if (breakpoint_count > 0)
arg = xstrprintf ("%d", breakpoint_count);
make_cleanup (xfree, arg);
}
map_breakpoint_numbers (arg, do_map_commands_command, &info);
if (info.cmd == NULL)
error (_("No breakpoints specified."));
do_cleanups (cleanups);
}
static void
commands_command (char *arg, int from_tty)
{
struct breakpoint *b;
char *p;
int bnum;
struct command_line *l;
p = arg;
bnum = get_number (&p);
if (p && *p)
error (_("Unexpected extra arguments following breakpoint number."));
ALL_BREAKPOINTS (b)
if (b->number == bnum)
{
char *tmpbuf = xstrprintf ("Type commands for when breakpoint %d is hit, one per line.",
bnum);
struct cleanup *cleanups = make_cleanup (xfree, tmpbuf);
if (breakpoint_is_tracepoint (b))
l = read_command_lines (tmpbuf, from_tty, 1,
check_tracepoint_command, b);
else
l = read_command_lines (tmpbuf, from_tty, 1, 0, 0);
do_cleanups (cleanups);
breakpoint_set_commands (b, l);
return;
}
error (_("No breakpoint number %d."), bnum);
commands_command_1 (arg, from_tty, NULL);
}
/* Like commands_command, but instead of reading the commands from
@ -893,36 +986,8 @@ commands_command (char *arg, int from_tty)
enum command_control_type
commands_from_control_command (char *arg, struct command_line *cmd)
{
struct breakpoint *b;
char *p;
int bnum;
/* 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)
{
decref_counted_command_line (&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
= alloc_counted_command_line (copy_command_lines (cmd->body_list[0]));
breakpoints_changed ();
observer_notify_breakpoint_modified (b->number);
return simple_control;
}
error (_("No breakpoint number %d."), bnum);
commands_command_1 (arg, 0, cmd);
return simple_control;
}
/* Return non-zero if BL->TARGET_INFO contains valid information. */
@ -7111,6 +7176,7 @@ create_breakpoint (struct gdbarch *gdbarch,
int not_found = 0;
enum bptype type_wanted;
int task = 0;
int first_bp_set = breakpoint_count + 1;
sals.sals = NULL;
sals.nelts = 0;
@ -7267,8 +7333,14 @@ create_breakpoint (struct gdbarch *gdbarch,
}
if (sals.nelts > 1)
warning (_("Multiple breakpoints were set.\n"
"Use the \"delete\" command to delete unwanted breakpoints."));
{
warning (_("Multiple breakpoints were set.\n"
"Use the \"delete\" command to delete unwanted breakpoints."));
multi_start = first_bp_set;
multi_end = breakpoint_count;
last_was_multi = 1;
}
/* That's it. Discard the cleanups for data inserted into the
breakpoint. */
discard_cleanups (bkpt_chain);
@ -9124,6 +9196,15 @@ make_cleanup_delete_breakpoint (struct breakpoint *b)
return make_cleanup (do_delete_breakpoint_cleanup, b);
}
/* A callback for map_breakpoint_numbers that calls
delete_breakpoint. */
static void
do_delete_breakpoint (struct breakpoint *b, void *ignore)
{
delete_breakpoint (b);
}
void
delete_command (char *arg, int from_tty)
{
@ -9171,7 +9252,7 @@ delete_command (char *arg, int from_tty)
}
}
else
map_breakpoint_numbers (arg, delete_breakpoint);
map_breakpoint_numbers (arg, do_delete_breakpoint, NULL);
}
static int
@ -9632,7 +9713,9 @@ ignore_command (char *args, int from_tty)
whose numbers are given in ARGS. */
static void
map_breakpoint_numbers (char *args, void (*function) (struct breakpoint *))
map_breakpoint_numbers (char *args, void (*function) (struct breakpoint *,
void *),
void *data)
{
char *p = args;
char *p1;
@ -9660,9 +9743,9 @@ map_breakpoint_numbers (char *args, void (*function) (struct breakpoint *))
{
struct breakpoint *related_breakpoint = b->related_breakpoint;
match = 1;
function (b);
function (b, data);
if (related_breakpoint)
function (related_breakpoint);
function (related_breakpoint, data);
break;
}
if (match == 0)
@ -9738,6 +9821,15 @@ disable_breakpoint (struct breakpoint *bpt)
observer_notify_breakpoint_modified (bpt->number);
}
/* A callback for map_breakpoint_numbers that calls
disable_breakpoint. */
static void
do_map_disable_breakpoint (struct breakpoint *b, void *ignore)
{
disable_breakpoint (b);
}
static void
disable_command (char *args, int from_tty)
{
@ -9771,7 +9863,7 @@ disable_command (char *args, int from_tty)
update_global_location_list (0);
}
else
map_breakpoint_numbers (args, disable_breakpoint);
map_breakpoint_numbers (args, do_map_disable_breakpoint, NULL);
}
static void
@ -9828,6 +9920,15 @@ enable_breakpoint (struct breakpoint *bpt)
do_enable_breakpoint (bpt, bpt->disposition);
}
/* A callback for map_breakpoint_numbers that calls
enable_breakpoint. */
static void
do_map_enable_breakpoint (struct breakpoint *b, void *ignore)
{
enable_breakpoint (b);
}
/* The enable command enables the specified breakpoints (or all defined
breakpoints) so they once again become (or continue to be) effective
in stopping the inferior. */
@ -9865,11 +9966,11 @@ enable_command (char *args, int from_tty)
update_global_location_list (1);
}
else
map_breakpoint_numbers (args, enable_breakpoint);
map_breakpoint_numbers (args, do_map_enable_breakpoint, NULL);
}
static void
enable_once_breakpoint (struct breakpoint *bpt)
enable_once_breakpoint (struct breakpoint *bpt, void *ignore)
{
do_enable_breakpoint (bpt, disp_disable);
}
@ -9877,11 +9978,11 @@ enable_once_breakpoint (struct breakpoint *bpt)
static void
enable_once_command (char *args, int from_tty)
{
map_breakpoint_numbers (args, enable_once_breakpoint);
map_breakpoint_numbers (args, enable_once_breakpoint, NULL);
}
static void
enable_delete_breakpoint (struct breakpoint *bpt)
enable_delete_breakpoint (struct breakpoint *bpt, void *ignore)
{
do_enable_breakpoint (bpt, disp_del);
}
@ -9889,7 +9990,7 @@ enable_delete_breakpoint (struct breakpoint *bpt)
static void
enable_delete_command (char *args, int from_tty)
{
map_breakpoint_numbers (args, enable_delete_breakpoint);
map_breakpoint_numbers (args, enable_delete_breakpoint, NULL);
}
static void
@ -10312,7 +10413,7 @@ delete_trace_command (char *arg, int from_tty)
}
}
else
map_breakpoint_numbers (arg, delete_breakpoint);
map_breakpoint_numbers (arg, do_delete_breakpoint, NULL);
}
/* Set passcount for tracepoint.

View file

@ -1025,4 +1025,9 @@ extern int breakpoint_is_tracepoint (const struct breakpoint *b);
that each command is suitable for tracepoint command list. */
extern void check_tracepoint_command (char *line, void *closure);
/* Call at the start and end of an "rbreak" command to register
breakpoint numbers for a later "commands" command. */
extern void start_rbreak_breakpoints (void);
extern void end_rbreak_breakpoints (void);
#endif /* !defined (BREAKPOINT_H) */

View file

@ -1,3 +1,8 @@
2010-03-24 Tom Tromey <tromey@redhat.com>
PR breakpoints/9352:
* gdb.texinfo (Break Commands): Update.
2010-03-24 Vladimir Prus <vladimir@codesourcery.com>
* gdb.texinfo (GDB/MI Tracepoint Commands): Document MI tracepoint

View file

@ -4328,19 +4328,23 @@ enable other breakpoints.
@table @code
@kindex commands
@kindex end@r{ (breakpoint commands)}
@item commands @r{[}@var{bnum}@r{]}
@item commands @r{[}@var{range}@dots{}@r{]}
@itemx @dots{} @var{command-list} @dots{}
@itemx end
Specify a list of commands for breakpoint number @var{bnum}. The commands
Specify a list of commands for the given breakpoints. The commands
themselves appear on the following lines. Type a line containing just
@code{end} to terminate the commands.
To remove all commands from a breakpoint, type @code{commands} and
follow it immediately with @code{end}; that is, give no commands.
With no @var{bnum} argument, @code{commands} refers to the last
breakpoint, watchpoint, or catchpoint set (not to the breakpoint most
recently encountered).
With no argument, @code{commands} refers to the last breakpoint,
watchpoint, or catchpoint set (not to the breakpoint most recently
encountered). If the most recent breakpoints were set with a single
command, then the @code{commands} will apply to all the breakpoints
set by that command. This applies to breakpoints set by
@code{rbreak}, and also breakpoints set with @code{break} that have
multiple locations.
@end table
Pressing @key{RET} as a means of repeating the last @value{GDBN} command is

View file

@ -3170,23 +3170,41 @@ rbreak_command_wrapper (char *regexp, int from_tty)
rbreak_command (regexp, from_tty);
}
/* A cleanup function that calls end_rbreak_breakpoints. */
static void
do_end_rbreak_breakpoints (void *ignore)
{
end_rbreak_breakpoints ();
}
static void
rbreak_command (char *regexp, int from_tty)
{
struct symbol_search *ss;
struct symbol_search *p;
struct cleanup *old_chain;
char *string = NULL;
int len = 0;
search_symbols (regexp, FUNCTIONS_DOMAIN, 0, (char **) NULL, &ss);
old_chain = make_cleanup_free_search_symbols (ss);
make_cleanup (free_current_contents, &string);
start_rbreak_breakpoints ();
make_cleanup (do_end_rbreak_breakpoints, NULL);
for (p = ss; p != NULL; p = p->next)
{
if (p->msymbol == NULL)
{
char *string = alloca (strlen (p->symtab->filename)
+ strlen (SYMBOL_LINKAGE_NAME (p->symbol))
+ 4);
int newlen = (strlen (p->symtab->filename)
+ strlen (SYMBOL_LINKAGE_NAME (p->symbol))
+ 4);
if (newlen > len)
{
string = xrealloc (string, newlen);
len = newlen;
}
strcpy (string, p->symtab->filename);
strcat (string, ":'");
strcat (string, SYMBOL_LINKAGE_NAME (p->symbol));
@ -3200,8 +3218,13 @@ rbreak_command (char *regexp, int from_tty)
}
else
{
char *string = alloca (strlen (SYMBOL_LINKAGE_NAME (p->msymbol))
+ 3);
int newlen = (strlen (SYMBOL_LINKAGE_NAME (p->msymbol))
+ 3);
if (newlen > len)
{
string = xrealloc (string, newlen);
len = newlen;
}
strcpy (string, "'");
strcat (string, SYMBOL_LINKAGE_NAME (p->msymbol));
strcat (string, "'");

View file

@ -1,3 +1,11 @@
2010-03-24 Tom Tromey <tromey@redhat.com>
PR breakpoints/9352:
* gdb.base/default.exp: Update.
* gdb.base/commands.exp: Update.
* gdb.cp/extern-c.exp: Test setting commands on multiple
breakpoints at once.
2010-03-24 Daniel Jacobowitz <dan@codesourcery.com>
* gdb.base/call-signal-resume.exp, gdb.base/unwindonsignal.exp: Skip

View file

@ -299,7 +299,7 @@ proc watchpoint_command_test {} {
send_gdb "commands $wp_id\n"
gdb_expect {
-re "Type commands for when breakpoint $wp_id is hit, one per line.*>" {
-re "Type commands for all specified breakpoints.*>" {
pass "begin commands on watch"
}
-re "$gdb_prompt $" {fail "begin commands on watch"}
@ -452,7 +452,7 @@ proc bp_deleted_in_command_test {} {
send_gdb "commands\n"
gdb_expect {
-re "Type commands for when breakpoint .* is hit, one per line.*>" {
-re "Type commands for all specified breakpoints.*>" {
pass "begin commands in bp_deleted_in_command_test"
}
-re "$gdb_prompt $" {fail "begin commands in bp_deleted_in_command_test"}
@ -519,7 +519,7 @@ proc temporary_breakpoint_commands {} {
send_gdb "commands\n"
gdb_expect {
-re "Type commands for when breakpoint .* is hit, one per line.*>" {
-re "Type commands for all specified breakpoints.*>" {
pass "begin commands in bp_deleted_in_command_test"
}
-re "$gdb_prompt $" {fail "begin commands in bp_deleted_in_command_test"}

View file

@ -100,7 +100,7 @@ gdb_test "cd" "Argument required .new working directory.*" "cd"
gdb_test "clear" "No source file specified..*" "clear"
#test commands
gdb_test "commands" "No breakpoint number 0..*" "commands"
gdb_test "commands" "Argument required .one or more breakpoint numbers...*" "commands"
#test condition
gdb_test "condition" "Argument required .breakpoint number.*" "condition"

View file

@ -40,7 +40,26 @@ if { [gdb_breakpoint "c_func"] == 1 } {
}
gdb_continue_to_breakpoint "c_func" ".*c_func.*"
gdb_test "set \$counter = 0" "" "initialize counter"
gdb_test "rbreak c_funcs" \
"Breakpoint.* at .*c_funcs_1.*Breakpoint.* at .*c_funcs_2.*"
# Test that "commands" without an argument puts commands on both
# breakpoints.
gdb_test_multiple "commands" "set commands on multiple breakpoints" {
-re "Type commands for all specified breakpoints\r\nEnd with a line saying just \"end\".\r\n>$" {
gdb_test_multiple "set \$counter = \$counter + 1\nend" \
"command details for multiple breakpoints" {
-re "$gdb_prompt $" {
pass "command details for multiple breakpoints"
}
}
pass "set commands on multiple breakpoints"
}
}
gdb_continue_to_breakpoint "c_funcs_1" ".*c_funcs_1.*"
gdb_test "print \$counter" " = 1" "verify counter at first breakpoint"
gdb_continue_to_breakpoint "c_funcs_2" ".*c_funcs_2.*"
gdb_test "print \$counter" " = 2" "verify counter at second breakpoint"