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gdb: define convenience function 'exists_non_stop_target'

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Define a predicate function that returns true if there exists an
inferior with a non-stop target.

gdb/ChangeLog:
2020-04-01  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>

	* target.h (exists_non_stop_target): New function declaration.
	* target.c (exists_non_stop_target): New function.
This commit is contained in:
Tankut Baris Aktemur
2020-04-01 21:33:05 +02:00
parent 3ce23ca1de
commit a0714d305f
3 changed files with 28 additions and 0 deletions
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5
gdb/ChangeLog
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@@ -1,3 +1,8 @@
2020-04-01 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>
* target.h (exists_non_stop_target): New function declaration.
* target.c (exists_non_stop_target): New function.
2020-04-01 Hannes Domani <ssbssa@yahoo.de> 2020-04-01 Hannes Domani <ssbssa@yahoo.de>
PR gdb/24789 PR gdb/24789

20
gdb/target.c
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@@ -3931,6 +3931,26 @@ target_is_non_stop_p (void)
&& target_always_non_stop_p ())); && target_always_non_stop_p ()));
} }
/* See target.h. */
bool
exists_non_stop_target ()
{
if (target_is_non_stop_p ())
return true;
scoped_restore_current_thread restore_thread;
for (inferior *inf : all_inferiors ())
{
switch_to_inferior_no_thread (inf);
if (target_is_non_stop_p ())
return true;
}
return false;
}
/* Controls if targets can report that they always run in non-stop /* Controls if targets can report that they always run in non-stop
mode. This is just for maintainers to use when debugging gdb. */ mode. This is just for maintainers to use when debugging gdb. */
enum auto_boolean target_non_stop_enabled = AUTO_BOOLEAN_AUTO; enum auto_boolean target_non_stop_enabled = AUTO_BOOLEAN_AUTO;

3
gdb/target.h
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@@ -1857,6 +1857,9 @@ extern enum auto_boolean target_non_stop_enabled;
non-stop" is on. */ non-stop" is on. */
extern int target_is_non_stop_p (void); extern int target_is_non_stop_p (void);
/* Return true if at least one inferior has a non-stop target. */
extern bool exists_non_stop_target ();
#define target_execution_direction() \ #define target_execution_direction() \
(current_top_target ()->execution_direction ()) (current_top_target ()->execution_direction ())