struct thread_info
{
- struct thread_info *next;
+public:
+ explicit thread_info (inferior *inf, ptid_t ptid);
+ ~thread_info ();
+
+ struct thread_info *next = NULL;
ptid_t ptid; /* "Actual process id";
In fact, this may be overloaded with
kernel thread id, etc. */
/* The name of the thread, as specified by the user. This is NULL
if the thread does not have a user-given name. */
- char *name;
+ char *name = NULL;
/* Non-zero means the thread is executing. Note: this is different
from saying that there is an active target and we are stopped at
a breakpoint, for instance. This is a real indicator whether the
thread is off and running. */
- int executing;
+ int executing = 0;
/* Non-zero if this thread is resumed from infrun's perspective.
Note that a thread can be marked both as not-executing and
thread really run until that wait status has been processed, but
we should not process that wait status if we didn't try to let
the thread run. */
- int resumed;
+ int resumed = 0;
/* Frontend view of the thread state. Note that the THREAD_RUNNING/
THREAD_STOPPED states are different from EXECUTING. When the
thread is stopped internally while handling an internal event,
like a software single-step breakpoint, EXECUTING will be false,
but STATE will still be THREAD_RUNNING. */
- enum thread_state state;
+ enum thread_state state = THREAD_STOPPED;
/* If this is > 0, then it means there's code out there that relies
on this thread being listed. Don't delete it from the lists even
if we detect it exiting. */
- int refcount;
+ int refcount = 0;
/* State of GDB control of inferior thread execution.
See `struct thread_control_state'. */
- struct thread_control_state control;
+ thread_control_state control {};
/* State of inferior thread to restore after GDB is done with an inferior
call. See `struct thread_suspend_state'. */
- struct thread_suspend_state suspend;
+ thread_suspend_state suspend {};
- int current_line;
- struct symtab *current_symtab;
+ int current_line = 0;
+ struct symtab *current_symtab = NULL;
/* Internal stepping state. */
by proceed and keep_going, and among other things, it's used in
adjust_pc_after_break to distinguish a hardware single-step
SIGTRAP from a breakpoint SIGTRAP. */
- CORE_ADDR prev_pc;
+ CORE_ADDR prev_pc = 0;
/* Did we set the thread stepping a breakpoint instruction? This is
used in conjunction with PREV_PC to decide whether to adjust the
PC. */
- int stepped_breakpoint;
+ int stepped_breakpoint = 0;
/* Should we step over breakpoint next time keep_going is called? */
- int stepping_over_breakpoint;
+ int stepping_over_breakpoint = 0;
/* Should we step over a watchpoint next time keep_going is called?
This is needed on targets with non-continuable, non-steppable
watchpoints. */
- int stepping_over_watchpoint;
+ int stepping_over_watchpoint = 0;
/* Set to TRUE if we should finish single-stepping over a breakpoint
after hitting the current step-resume breakpoint. The context here
step_after_step_resume_breakpoint is set to TRUE at this moment in
order to keep GDB in mind that there is still a breakpoint to step over
when GDB gets back SIGTRAP from step_resume_breakpoint. */
- int step_after_step_resume_breakpoint;
+ int step_after_step_resume_breakpoint = 0;
/* Pointer to the state machine manager object that handles what is
left to do for the thread's execution command after the target
stops. Several execution commands use it. */
- struct thread_fsm *thread_fsm;
+ struct thread_fsm *thread_fsm = NULL;
/* This is used to remember when a fork or vfork event was caught by
a catchpoint, and thus the event is to be followed at the next
struct target_waitstatus pending_follow;
/* True if this thread has been explicitly requested to stop. */
- int stop_requested;
+ int stop_requested = 0;
/* The initiating frame of a nexting operation, used for deciding
which exceptions to intercept. If it is null_frame_id no
bp_longjmp or bp_exception but longjmp has been caught just for
bp_longjmp_call_dummy. */
- struct frame_id initiating_frame;
+ struct frame_id initiating_frame = null_frame_id;
/* Private data used by the target vector implementation. */
- struct private_thread_info *priv;
+ struct private_thread_info *priv = NULL;
/* Function that is called to free PRIVATE. If this is NULL, then
xfree will be called on PRIVATE. */
- void (*private_dtor) (struct private_thread_info *);
+ void (*private_dtor) (struct private_thread_info *) = NULL;
/* Branch trace information for this thread. */
- struct btrace_thread_info btrace;
+ struct btrace_thread_info btrace {};
/* Flag which indicates that the stack temporaries should be stored while
evaluating expressions. */
- int stack_temporaries_enabled;
+ int stack_temporaries_enabled = 0;
/* Values that are stored as temporaries on stack while evaluating
expressions. */
- value_vec *stack_temporaries;
+ value_vec *stack_temporaries = NULL;
/* Step-over chain. A thread is in the step-over queue if these are
non-NULL. If only a single thread is in the chain, then these
fields point to self. */
- struct thread_info *step_over_prev;
- struct thread_info *step_over_next;
+ struct thread_info *step_over_prev = NULL;
+ struct thread_info *step_over_next = NULL;
};
/* Create an empty thread list, or empty the existing one. */
thread_cancel_execution_command (tp);
}
-static void
-free_thread (struct thread_info *tp)
-{
- if (tp->priv)
- {
- if (tp->private_dtor)
- tp->private_dtor (tp->priv);
- else
- xfree (tp->priv);
- }
-
- xfree (tp->name);
- xfree (tp);
-}
-
void
init_thread_list (void)
{
for (tp = thread_list; tp; tp = tpnext)
{
tpnext = tp->next;
- free_thread (tp);
+ delete tp;
}
thread_list = NULL;
static struct thread_info *
new_thread (struct inferior *inf, ptid_t ptid)
{
- struct thread_info *tp;
-
- gdb_assert (inf != NULL);
-
- tp = XCNEW (struct thread_info);
-
- tp->ptid = ptid;
- tp->global_num = ++highest_thread_num;
- tp->inf = inf;
- tp->per_inf_num = ++inf->highest_thread_num;
+ thread_info *tp = new thread_info (inf, ptid);
if (thread_list == NULL)
thread_list = tp;
last->next = tp;
}
- /* Nothing to follow yet. */
- tp->pending_follow.kind = TARGET_WAITKIND_SPURIOUS;
- tp->state = THREAD_STOPPED;
- tp->suspend.waitstatus.kind = TARGET_WAITKIND_IGNORE;
-
return tp;
}
return add_thread_with_info (ptid, NULL);
}
+thread_info::thread_info (struct inferior *inf_, ptid_t ptid_)
+ : ptid (ptid_), inf (inf_)
+{
+ gdb_assert (inf_ != NULL);
+
+ this->global_num = ++highest_thread_num;
+ this->per_inf_num = ++inf_->highest_thread_num;
+
+ /* Nothing to follow yet. */
+ memset (&this->pending_follow, 0, sizeof (this->pending_follow));
+ this->pending_follow.kind = TARGET_WAITKIND_SPURIOUS;
+ this->suspend.waitstatus.kind = TARGET_WAITKIND_IGNORE;
+}
+
+thread_info::~thread_info ()
+{
+ if (this->priv)
+ {
+ if (this->private_dtor)
+ this->private_dtor (this->priv);
+ else
+ xfree (this->priv);
+ }
+
+ xfree (this->name);
+}
+
/* Add TP to the end of the step-over chain LIST_P. */
static void
else
thread_list = tp->next;
- free_thread (tp);
+ delete tp;
}
/* Delete thread PTID and notify of thread exit. If this is
struct cleanup *
make_cleanup_restore_current_thread (void)
{
- struct thread_info *tp;
- struct frame_info *frame;
struct current_thread_cleanup *old = XNEW (struct current_thread_cleanup);
old->inferior_ptid = inferior_ptid;
if (!ptid_equal (inferior_ptid, null_ptid))
{
+ struct frame_info *frame;
+
old->was_stopped = is_stopped (inferior_ptid);
if (old->was_stopped
&& target_has_registers
old->selected_frame_id = get_frame_id (frame);
old->selected_frame_level = frame_relative_level (frame);
- tp = find_thread_ptid (inferior_ptid);
+ struct thread_info *tp = find_thread_ptid (inferior_ptid);
+
if (tp)
tp->refcount++;
}
projects / binutils-gdb.git / commitdiff