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Make target_waitstatus_to_string return an std::string 

A quite straightforward change.  It does "fix" leaks in record-btrace.c,
although since this is only used in debug printing code, it has no real
world impact.

gdb/ChangeLog:

	* target/waitstatus.h (target_waitstatus_to_string): Change
	return type to std::string.
	* target/waitstatus.c (target_waitstatus_to_string): Return
	std::string.
	* target.h (target_waitstatus_to_string): Remove declaration.
	* infrun.c (resume, clear_proceed_status_thread,
	print_target_wait_results, do_target_wait, save_waitstatus,
	stop_all_threads): Adjust.
	* record-btrace.c (record_btrace_wait): Adjust.
	* target-debug.h
	(target_debug_print_struct_target_waitstatus_p): Adjust.

gdb/gdbserver/ChangeLog:

	* linux-low.c (linux_wait_1): Adjust.
	* server.c (queue_stop_reply_callback): Adjust.
This commit is contained in:
Simon Marchi 2017-09-03 10:23:31 +02:00
parent f04bdfa7b2
commit 23fdd69e42
10 changed files with 71 additions and 70 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
gdb/ChangeLog
View File

@ -1,3 +1,17 @@
2017-09-03 Simon Marchi <simon.marchi@ericsson.com>
* target/waitstatus.h (target_waitstatus_to_string): Change
return type to std::string.
* target/waitstatus.c (target_waitstatus_to_string): Return
std::string.
* target.h (target_waitstatus_to_string): Remove declaration.
* infrun.c (resume, clear_proceed_status_thread,
print_target_wait_results, do_target_wait, save_waitstatus,
stop_all_threads): Adjust.
* record-btrace.c (record_btrace_wait): Adjust.
* target-debug.h
(target_debug_print_struct_target_waitstatus_p): Adjust.
2017-09-01 Jan Kratochvil <jan.kratochvil@redhat.com>
PR gdb/22046

5
gdb/gdbserver/ChangeLog
View File

@ -1,3 +1,8 @@
2017-09-03 Simon Marchi <simon.marchi@ericsson.com>
* linux-low.c (linux_wait_1): Adjust.
* server.c (queue_stop_reply_callback): Adjust.
2017-08-31 Sergio Durigan Junior <sergiodj@redhat.com>
* server.c (handle_general_set): Handle QEnvironmentHexEncoded,

7
gdb/gdbserver/linux-low.c
View File

@ -3733,12 +3733,11 @@ linux_wait_1 (ptid_t ptid,
{
if (event_child->waitstatus.kind != TARGET_WAITKIND_IGNORE)
{
char *str;
std::string str
= target_waitstatus_to_string (&event_child->waitstatus);
str = target_waitstatus_to_string (&event_child->waitstatus);
debug_printf ("LWP %ld: extended event with waitstatus %s\n",
lwpid_of (get_lwp_thread (event_child)), str);
xfree (str);
lwpid_of (get_lwp_thread (event_child)), str.c_str ());
}
if (current_thread->last_resume_kind == resume_step)
{

6
gdb/gdbserver/server.c
View File

@ -3181,14 +3181,12 @@ queue_stop_reply_callback (struct inferior_list_entry *entry, void *arg)
{
if (debug_threads)
{
char *status_string
std::string status_string
= target_waitstatus_to_string (&thread->last_status);
debug_printf ("Reporting thread %s as already stopped with %s\n",
target_pid_to_str (entry->id),
status_string);
xfree (status_string);
status_string.c_str ());
}
gdb_assert (thread->last_status.kind != TARGET_WAITKIND_IGNORE);

43
gdb/infrun.c
View File

@ -2409,15 +2409,14 @@ resume (enum gdb_signal sig)
{
if (debug_infrun)
{
char *statstr;
std::string statstr
= target_waitstatus_to_string (&tp->suspend.waitstatus);
statstr = target_waitstatus_to_string (&tp->suspend.waitstatus);
fprintf_unfiltered (gdb_stdlog,
"infrun: resume: thread %s has pending wait status %s "
"(currently_stepping=%d).\n",
target_pid_to_str (tp->ptid), statstr,
"infrun: resume: thread %s has pending wait "
"status %s (currently_stepping=%d).\n",
target_pid_to_str (tp->ptid), statstr.c_str (),
currently_stepping (tp));
xfree (statstr);
}
tp->resumed = 1;
@ -2820,16 +2819,15 @@ clear_proceed_status_thread (struct thread_info *tp)
}
else if (debug_infrun)
{
char *statstr;
std::string statstr
= target_waitstatus_to_string (&tp->suspend.waitstatus);
statstr = target_waitstatus_to_string (&tp->suspend.waitstatus);
fprintf_unfiltered (gdb_stdlog,
"infrun: clear_proceed_status_thread: thread %s "
"has pending wait status %s "
"(currently_stepping=%d).\n",
target_pid_to_str (tp->ptid), statstr,
target_pid_to_str (tp->ptid), statstr.c_str (),
currently_stepping (tp));
xfree (statstr);
}
}
@ -3418,7 +3416,7 @@ void
print_target_wait_results (ptid_t waiton_ptid, ptid_t result_ptid,
const struct target_waitstatus *ws)
{
char *status_string = target_waitstatus_to_string (ws);
std::string status_string = target_waitstatus_to_string (ws);
string_file stb;
/* The text is split over several lines because it was getting too long.
@ -3438,13 +3436,11 @@ print_target_wait_results (ptid_t waiton_ptid, ptid_t result_ptid,
ptid_get_lwp (result_ptid),
ptid_get_tid (result_ptid),
target_pid_to_str (result_ptid));
stb.printf ("infrun: %s\n", status_string);
stb.printf ("infrun: %s\n", status_string.c_str ());
/* This uses %s in part to handle %'s in the text, but also to avoid
a gcc error: the format attribute requires a string literal. */
fprintf_unfiltered (gdb_stdlog, "%s", stb.c_str ());
xfree (status_string);
}
/* Select a thread at random, out of those which are resumed and have
@ -3566,14 +3562,13 @@ do_target_wait (ptid_t ptid, struct target_waitstatus *status, int options)
{
if (debug_infrun)
{
char *statstr;
std::string statstr
= target_waitstatus_to_string (&tp->suspend.waitstatus);
statstr = target_waitstatus_to_string (&tp->suspend.waitstatus);
fprintf_unfiltered (gdb_stdlog,
"infrun: Using pending wait status %s for %s.\n",
statstr,
statstr.c_str (),
target_pid_to_str (tp->ptid));
xfree (statstr);
}
/* Now that we've selected our final event LWP, un-adjust its PC
@ -4395,16 +4390,14 @@ save_waitstatus (struct thread_info *tp, struct target_waitstatus *ws)
if (debug_infrun)
{
char *statstr;
std::string statstr = target_waitstatus_to_string (ws);
statstr = target_waitstatus_to_string (ws);
fprintf_unfiltered (gdb_stdlog,
"infrun: saving status %s for %d.%ld.%ld\n",
statstr,
statstr.c_str (),
ptid_get_pid (tp->ptid),
ptid_get_lwp (tp->ptid),
ptid_get_tid (tp->ptid));
xfree (statstr);
}
/* Record for later. */
@ -4634,17 +4627,15 @@ stop_all_threads (void)
if (debug_infrun)
{
char *statstr;
std::string statstr = target_waitstatus_to_string (&ws);
statstr = target_waitstatus_to_string (&ws);
fprintf_unfiltered (gdb_stdlog,
"infrun: target_wait %s, saving "
"status for %d.%ld.%ld\n",
statstr,
statstr.c_str (),
ptid_get_pid (t->ptid),
ptid_get_lwp (t->ptid),
ptid_get_tid (t->ptid));
xfree (statstr);
}
/* Record for later. */

4
gdb/record-btrace.c
View File

@ -2478,7 +2478,7 @@ record_btrace_wait (struct target_ops *ops, ptid_t ptid,
*status = btrace_step_no_resumed ();
DEBUG ("wait ended by %s: %s", target_pid_to_str (null_ptid),
target_waitstatus_to_string (status));
target_waitstatus_to_string (status).c_str ());
do_cleanups (cleanups);
return null_ptid;
@ -2570,7 +2570,7 @@ record_btrace_wait (struct target_ops *ops, ptid_t ptid,
DEBUG ("wait ended by thread %s (%s): %s",
print_thread_id (eventing),
target_pid_to_str (eventing->ptid),
target_waitstatus_to_string (status));
target_waitstatus_to_string (status).c_str ());
do_cleanups (cleanups);
return eventing->ptid;

5
gdb/target-debug.h
View File

@ -166,10 +166,9 @@
static void
target_debug_print_struct_target_waitstatus_p (struct target_waitstatus *status)
{
char *str = target_waitstatus_to_string (status);
std::string str = target_waitstatus_to_string (status);
fputs_unfiltered (str, gdb_stdlog);
xfree (str);
fputs_unfiltered (str.c_str (), gdb_stdlog);
}

4
gdb/target.h
View File

@ -108,10 +108,6 @@ struct syscall
const char *name;
};
/* Return a pretty printed form of target_waitstatus.
Space for the result is malloc'd, caller must free. */
extern char *target_waitstatus_to_string (const struct target_waitstatus *);
/* Return a pretty printed form of TARGET_OPTIONS.
Space for the result is malloc'd, caller must free. */
extern char *target_options_to_string (int target_options);

48
gdb/target/waitstatus.c
View File

@ -23,7 +23,7 @@
/* Return a pretty printed form of target_waitstatus.
Space for the result is malloc'd, caller must free. */
char *
std::string
target_waitstatus_to_string (const struct target_waitstatus *ws)
{
const char *kind_str = "status->kind = ";
@ -31,44 +31,44 @@ target_waitstatus_to_string (const struct target_waitstatus *ws)
switch (ws->kind)
{
case TARGET_WAITKIND_EXITED:
return xstrprintf ("%sexited, status = %d",
kind_str, ws->value.integer);
return string_printf ("%sexited, status = %d",
kind_str, ws->value.integer);
case TARGET_WAITKIND_STOPPED:
return xstrprintf ("%sstopped, signal = %s",
kind_str,
gdb_signal_to_symbol_string (ws->value.sig));
return string_printf ("%sstopped, signal = %s",
kind_str,
gdb_signal_to_symbol_string (ws->value.sig));
case TARGET_WAITKIND_SIGNALLED:
return xstrprintf ("%ssignalled, signal = %s",
kind_str,
gdb_signal_to_symbol_string (ws->value.sig));
return string_printf ("%ssignalled, signal = %s",
kind_str,
gdb_signal_to_symbol_string (ws->value.sig));
case TARGET_WAITKIND_LOADED:
return xstrprintf ("%sloaded", kind_str);
return string_printf ("%sloaded", kind_str);
case TARGET_WAITKIND_FORKED:
return xstrprintf ("%sforked", kind_str);
return string_printf ("%sforked", kind_str);
case TARGET_WAITKIND_VFORKED:
return xstrprintf ("%svforked", kind_str);
return string_printf ("%svforked", kind_str);
case TARGET_WAITKIND_EXECD:
return xstrprintf ("%sexecd", kind_str);
return string_printf ("%sexecd", kind_str);
case TARGET_WAITKIND_VFORK_DONE:
return xstrprintf ("%svfork-done", kind_str);
return string_printf ("%svfork-done", kind_str);
case TARGET_WAITKIND_SYSCALL_ENTRY:
return xstrprintf ("%sentered syscall", kind_str);
return string_printf ("%sentered syscall", kind_str);
case TARGET_WAITKIND_SYSCALL_RETURN:
return xstrprintf ("%sexited syscall", kind_str);
return string_printf ("%sexited syscall", kind_str);
case TARGET_WAITKIND_SPURIOUS:
return xstrprintf ("%sspurious", kind_str);
return string_printf ("%sspurious", kind_str);
case TARGET_WAITKIND_IGNORE:
return xstrprintf ("%signore", kind_str);
return string_printf ("%signore", kind_str);
case TARGET_WAITKIND_NO_HISTORY:
return xstrprintf ("%sno-history", kind_str);
return string_printf ("%sno-history", kind_str);
case TARGET_WAITKIND_NO_RESUMED:
return xstrprintf ("%sno-resumed", kind_str);
return string_printf ("%sno-resumed", kind_str);
case TARGET_WAITKIND_THREAD_CREATED:
return xstrprintf ("%sthread created", kind_str);
return string_printf ("%sthread created", kind_str);
case TARGET_WAITKIND_THREAD_EXITED:
return xstrprintf ("%sthread exited, status = %d",
kind_str, ws->value.integer);
return string_printf ("%sthread exited, status = %d",
kind_str, ws->value.integer);
default:
return xstrprintf ("%sunknown???", kind_str);
return string_printf ("%sunknown???", kind_str);
}
}

5
gdb/target/waitstatus.h
View File

@ -145,8 +145,7 @@ enum target_stop_reason
/* Prototypes */
/* Return a pretty printed form of target_waitstatus.
Space for the result is malloc'd, caller must free. */
extern char *target_waitstatus_to_string (const struct target_waitstatus *);
/* Return a pretty printed form of target_waitstatus. */
std::string target_waitstatus_to_string (const struct target_waitstatus *);
#endif /* WAITSTATUS_H */