gdb: add infrun_debug_printf macro
[deliverable/binutils-gdb.git] / gdb / infrun.c
index 66f50205449987f632dcad119d0a04fb163c9783..0f2a1bcd4a670825e21c7bb2bed94a28517ca302 100644 (file)
@@ -103,6 +103,21 @@ static int infrun_is_async = -1;
 
 /* See infrun.h.  */
 
+void
+infrun_debug_printf_1 (const char *func_name, const char *fmt, ...)
+{
+  debug_printf ("[infrun] %s: ", func_name);
+
+  va_list ap;
+  va_start (ap, fmt);
+  debug_vprintf (fmt, ap);
+  va_end (ap);
+
+  debug_printf ("\n");
+}
+
+/* See infrun.h.  */
+
 void
 infrun_async (int enable)
 {
@@ -110,10 +125,7 @@ infrun_async (int enable)
     {
       infrun_is_async = enable;
 
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog,
-                           "infrun: infrun_async(%d)\n",
-                           enable);
+      infrun_debug_printf ("enable=%d", enable);
 
       if (enable)
        mark_async_event_handler (infrun_async_inferior_event_token);
@@ -904,10 +916,8 @@ proceed_after_vfork_done (struct thread_info *thread,
       && !thread->stop_requested
       && thread->suspend.stop_signal == GDB_SIGNAL_0)
     {
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog,
-                           "infrun: resuming vfork parent thread %s\n",
-                           target_pid_to_str (thread->ptid).c_str ());
+      infrun_debug_printf ("resuming vfork parent thread %s",
+                          target_pid_to_str (thread->ptid).c_str ());
 
       switch_to_thread (thread);
       clear_proceed_status (0);
@@ -1042,10 +1052,8 @@ handle_vfork_child_exec_or_exit (int exec)
             free now.  */
          scoped_restore_current_thread restore_thread;
 
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: resuming vfork parent process %d\n",
-                               resume_parent);
+         infrun_debug_printf ("resuming vfork parent process %d",
+                              resume_parent);
 
          iterate_over_threads (proceed_after_vfork_done, &resume_parent);
        }
@@ -1336,9 +1344,7 @@ set_step_over_info (const address_space *aspace, CORE_ADDR address,
 static void
 clear_step_over_info (void)
 {
-  if (debug_infrun)
-    fprintf_unfiltered (gdb_stdlog,
-                       "infrun: clear_step_over_info\n");
+  infrun_debug_printf ("clearing step over info");
   step_over_info.aspace = NULL;
   step_over_info.address = 0;
   step_over_info.nonsteppable_watchpoint_p = 0;
@@ -1808,12 +1814,8 @@ displaced_step_prepare (thread_info *thread)
          && ex.error != NOT_SUPPORTED_ERROR)
        throw;
 
-      if (debug_infrun)
-       {
-         fprintf_unfiltered (gdb_stdlog,
-                             "infrun: disabling displaced stepping: %s\n",
-                             ex.what ());
-       }
+      infrun_debug_printf ("caught exception, disabling displaced stepping: %s",
+                          ex.what ());
 
       /* Be verbose if "set displaced-stepping" is "on", silent if
         "auto".  */
@@ -1997,11 +1999,7 @@ start_step_over (void)
       thread_step_over_chain_remove (tp);
 
       if (step_over_queue_head == NULL)
-       {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: step-over queue now empty\n");
-       }
+       infrun_debug_printf ("step-over queue now empty");
 
       if (tp->control.trap_expected
          || tp->resumed
@@ -2016,10 +2014,8 @@ start_step_over (void)
                          tp->executing);
        }
 
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog,
-                           "infrun: resuming [%s] for step-over\n",
-                           target_pid_to_str (tp->ptid).c_str ());
+      infrun_debug_printf ("resuming [%s] for step-over",
+                          target_pid_to_str (tp->ptid).c_str ());
 
       /* keep_going_pass_signal skips the step-over if the breakpoint
         is no longer inserted.  In all-stop, we want to keep looking
@@ -2284,18 +2280,12 @@ resume_1 (enum gdb_signal sig)
 
   if (tp->suspend.waitstatus_pending_p)
     {
-      if (debug_infrun)
-       {
-         std::string 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).c_str (),
-                             statstr.c_str (),
-                             currently_stepping (tp));
-       }
+      infrun_debug_printf
+       ("thread %s has pending wait "
+        "status %s (currently_stepping=%d).",
+        target_pid_to_str (tp->ptid).c_str (),
+        target_waitstatus_to_string (&tp->suspend.waitstatus).c_str (),
+        currently_stepping (tp));
 
       tp->inf->process_target ()->threads_executing = true;
       tp->resumed = true;
@@ -2339,22 +2329,18 @@ resume_1 (enum gdb_signal sig)
         Eventually, we'll see a TARGET_WAITKIND_VFORK_DONE event for
         the parent, and tell it to `keep_going', which automatically
         re-sets it stepping.  */
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog,
-                           "infrun: resume : clear step\n");
+      infrun_debug_printf ("resume : clear step");
       step = 0;
     }
 
   CORE_ADDR pc = regcache_read_pc (regcache);
 
-  if (debug_infrun)
-    fprintf_unfiltered (gdb_stdlog,
-                       "infrun: resume (step=%d, signal=%s), "
-                       "trap_expected=%d, current thread [%s] at %s\n",
-                       step, gdb_signal_to_symbol_string (sig),
-                       tp->control.trap_expected,
-                       target_pid_to_str (inferior_ptid).c_str (),
-                       paddress (gdbarch, pc));
+  infrun_debug_printf ("step=%d, signal=%s, trap_expected=%d, "
+                      "current thread [%s] at %s",
+                      step, gdb_signal_to_symbol_string (sig),
+                      tp->control.trap_expected,
+                      target_pid_to_str (inferior_ptid).c_str (),
+                      paddress (gdbarch, pc));
 
   /* Normally, by the time we reach `resume', the breakpoints are either
      removed or inserted, as appropriate.  The exception is if we're sitting
@@ -2378,10 +2364,8 @@ resume_1 (enum gdb_signal sig)
             signal handler (or hit some other event).  We'll delete
             the step-resume breakpoint then.  */
 
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: resume: skipping permanent breakpoint, "
-                               "deliver signal first\n");
+         infrun_debug_printf ("resume: skipping permanent breakpoint, "
+                              "deliver signal first");
 
          clear_step_over_info ();
          tp->control.trap_expected = 0;
@@ -2403,9 +2387,7 @@ resume_1 (enum gdb_signal sig)
        {
          /* There's no signal to pass, we can go ahead and skip the
             permanent breakpoint manually.  */
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: resume: skipping permanent breakpoint\n");
+         infrun_debug_printf ("skipping permanent breakpoint");
          gdbarch_skip_permanent_breakpoint (gdbarch, regcache);
          /* Update pc to reflect the new address from which we will
             execute instructions.  */
@@ -2460,9 +2442,7 @@ resume_1 (enum gdb_signal sig)
 
       if (prepared == 0)
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "Got placed in step-over queue\n");
+         infrun_debug_printf ("Got placed in step-over queue");
 
          tp->control.trap_expected = 0;
          return;
@@ -2599,10 +2579,8 @@ resume_1 (enum gdb_signal sig)
         gdb.threads/non-stop-fair-events.exp, on targets that don't
         do displaced stepping.  */
 
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog,
-                           "infrun: resume: [%s] stepped breakpoint\n",
-                           target_pid_to_str (tp->ptid).c_str ());
+      infrun_debug_printf ("resume: [%s] stepped breakpoint",
+                          target_pid_to_str (tp->ptid).c_str ());
 
       tp->stepped_breakpoint = 1;
 
@@ -2703,10 +2681,7 @@ new_stop_id (void)
 static void
 clear_proceed_status_thread (struct thread_info *tp)
 {
-  if (debug_infrun)
-    fprintf_unfiltered (gdb_stdlog,
-                       "infrun: clear_proceed_status_thread (%s)\n",
-                       target_pid_to_str (tp->ptid).c_str ());
+  infrun_debug_printf ("%s", target_pid_to_str (tp->ptid).c_str ());
 
   /* If we're starting a new sequence, then the previous finished
      single-step is no longer relevant.  */
@@ -2714,28 +2689,20 @@ clear_proceed_status_thread (struct thread_info *tp)
     {
       if (tp->suspend.stop_reason == TARGET_STOPPED_BY_SINGLE_STEP)
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: clear_proceed_status: pending "
-                               "event of %s was a finished step. "
-                               "Discarding.\n",
-                               target_pid_to_str (tp->ptid).c_str ());
+         infrun_debug_printf ("pending event of %s was a finished step. "
+                              "Discarding.",
+                              target_pid_to_str (tp->ptid).c_str ());
 
          tp->suspend.waitstatus_pending_p = 0;
          tp->suspend.stop_reason = TARGET_STOPPED_BY_NO_REASON;
        }
-      else if (debug_infrun)
+      else
        {
-         std::string 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).c_str (),
-                             statstr.c_str (),
-                             currently_stepping (tp));
+         infrun_debug_printf
+           ("thread %s has pending wait status %s (currently_stepping=%d).",
+            target_pid_to_str (tp->ptid).c_str (),
+            target_waitstatus_to_string (&tp->suspend.waitstatus).c_str (),
+            currently_stepping (tp));
        }
     }
 
@@ -3043,11 +3010,8 @@ proceed (CORE_ADDR addr, enum gdb_signal siggnal)
   if (!cur_thr->control.in_infcall)
     set_running (resume_target, resume_ptid, true);
 
-  if (debug_infrun)
-    fprintf_unfiltered (gdb_stdlog,
-                       "infrun: proceed (addr=%s, signal=%s)\n",
-                       paddress (gdbarch, addr),
-                       gdb_signal_to_symbol_string (siggnal));
+  infrun_debug_printf ("addr=%s, signal=%s", paddress (gdbarch, addr),
+                      gdb_signal_to_symbol_string (siggnal));
 
   annotate_starting ();
 
@@ -3091,10 +3055,8 @@ proceed (CORE_ADDR addr, enum gdb_signal siggnal)
 
          gdb_assert (!thread_is_in_step_over_chain (tp));
 
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: need to step-over [%s] first\n",
-                               target_pid_to_str (tp->ptid).c_str ());
+         infrun_debug_printf ("need to step-over [%s] first",
+                              target_pid_to_str (tp->ptid).c_str ());
 
          thread_step_over_chain_enqueue (tp);
        }
@@ -3141,37 +3103,28 @@ proceed (CORE_ADDR addr, enum gdb_signal siggnal)
 
            if (!tp->inf->has_execution ())
              {
-               if (debug_infrun)
-                 fprintf_unfiltered (gdb_stdlog,
-                                     "infrun: proceed: [%s] target has "
-                                     "no execution\n",
-                                     target_pid_to_str (tp->ptid).c_str ());
+               infrun_debug_printf ("[%s] target has no execution",
+                                    target_pid_to_str (tp->ptid).c_str ());
                continue;
              }
 
            if (tp->resumed)
              {
-               if (debug_infrun)
-                 fprintf_unfiltered (gdb_stdlog,
-                                     "infrun: proceed: [%s] resumed\n",
-                                     target_pid_to_str (tp->ptid).c_str ());
+               infrun_debug_printf ("[%s] resumed",
+                                    target_pid_to_str (tp->ptid).c_str ());
                gdb_assert (tp->executing || tp->suspend.waitstatus_pending_p);
                continue;
              }
 
            if (thread_is_in_step_over_chain (tp))
              {
-               if (debug_infrun)
-                 fprintf_unfiltered (gdb_stdlog,
-                                     "infrun: proceed: [%s] needs step-over\n",
-                                     target_pid_to_str (tp->ptid).c_str ());
+               infrun_debug_printf ("[%s] needs step-over",
+                                    target_pid_to_str (tp->ptid).c_str ());
                continue;
              }
 
-           if (debug_infrun)
-             fprintf_unfiltered (gdb_stdlog,
-                                 "infrun: proceed: resuming %s\n",
-                                 target_pid_to_str (tp->ptid).c_str ());
+           infrun_debug_printf ("resuming %s",
+                                target_pid_to_str (tp->ptid).c_str ());
 
            reset_ecs (ecs, tp);
            switch_to_thread (tp);
@@ -3406,19 +3359,19 @@ print_target_wait_results (ptid_t waiton_ptid, ptid_t result_ptid,
      output as a unit; we want only one timestamp printed if debug_timestamp
      is set.  */
 
-  stb.printf ("infrun: target_wait (%d.%ld.%ld",
+  stb.printf ("[infrun] target_wait (%d.%ld.%ld",
              waiton_ptid.pid (),
              waiton_ptid.lwp (),
              waiton_ptid.tid ());
   if (waiton_ptid.pid () != -1)
     stb.printf (" [%s]", target_pid_to_str (waiton_ptid).c_str ());
   stb.printf (", status) =\n");
-  stb.printf ("infrun:   %d.%ld.%ld [%s],\n",
+  stb.printf ("[infrun]   %d.%ld.%ld [%s],\n",
              result_ptid.pid (),
              result_ptid.lwp (),
              result_ptid.tid (),
              target_pid_to_str (result_ptid).c_str ());
-  stb.printf ("infrun:   %s\n", status_string.c_str ());
+  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.  */
@@ -3453,10 +3406,9 @@ random_pending_event_thread (inferior *inf, ptid_t waiton_ptid)
   int random_selector = (int) ((num_events * (double) rand ())
                               / (RAND_MAX + 1.0));
 
-  if (debug_infrun && num_events > 1)
-    fprintf_unfiltered (gdb_stdlog,
-                       "infrun: Found %d events, selecting #%d\n",
-                       num_events, random_selector);
+  if (num_events > 1)
+    infrun_debug_printf ("Found %d events, selecting #%d",
+                        num_events, random_selector);
 
   /* Select the Nth thread that has had an event.  */
   for (thread_info *tp : inf->non_exited_threads ())
@@ -3493,10 +3445,8 @@ do_target_wait_1 (inferior *inf, ptid_t ptid,
     }
   else
     {
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog,
-                           "infrun: Waiting for specific thread %s.\n",
-                           target_pid_to_str (ptid).c_str ());
+      infrun_debug_printf ("Waiting for specific thread %s.",
+                          target_pid_to_str (ptid).c_str ());
 
       /* We have a specific thread to check.  */
       tp = find_thread_ptid (inf, ptid);
@@ -3518,31 +3468,25 @@ do_target_wait_1 (inferior *inf, ptid_t ptid,
 
       if (pc != tp->suspend.stop_pc)
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: PC of %s changed.  was=%s, now=%s\n",
-                               target_pid_to_str (tp->ptid).c_str (),
-                               paddress (gdbarch, tp->suspend.stop_pc),
-                               paddress (gdbarch, pc));
+         infrun_debug_printf ("PC of %s changed.  was=%s, now=%s",
+                              target_pid_to_str (tp->ptid).c_str (),
+                              paddress (gdbarch, tp->suspend.stop_pc),
+                              paddress (gdbarch, pc));
          discard = 1;
        }
       else if (!breakpoint_inserted_here_p (regcache->aspace (), pc))
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: previous breakpoint of %s, at %s gone\n",
-                               target_pid_to_str (tp->ptid).c_str (),
-                               paddress (gdbarch, pc));
+         infrun_debug_printf ("previous breakpoint of %s, at %s gone",
+                              target_pid_to_str (tp->ptid).c_str (),
+                              paddress (gdbarch, pc));
 
          discard = 1;
        }
 
       if (discard)
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: pending event of %s cancelled.\n",
-                               target_pid_to_str (tp->ptid).c_str ());
+         infrun_debug_printf ("pending event of %s cancelled.",
+                              target_pid_to_str (tp->ptid).c_str ());
 
          tp->suspend.waitstatus.kind = TARGET_WAITKIND_SPURIOUS;
          tp->suspend.stop_reason = TARGET_STOPPED_BY_NO_REASON;
@@ -3551,16 +3495,10 @@ do_target_wait_1 (inferior *inf, ptid_t ptid,
 
   if (tp != NULL)
     {
-      if (debug_infrun)
-       {
-         std::string statstr
-           = target_waitstatus_to_string (&tp->suspend.waitstatus);
-
-         fprintf_unfiltered (gdb_stdlog,
-                             "infrun: Using pending wait status %s for %s.\n",
-                             statstr.c_str (),
-                             target_pid_to_str (tp->ptid).c_str ());
-       }
+      infrun_debug_printf ("Using pending wait status %s for %s.",
+                          target_waitstatus_to_string
+                            (&tp->suspend.waitstatus).c_str (),
+                          target_pid_to_str (tp->ptid).c_str ());
 
       /* Now that we've selected our final event LWP, un-adjust its PC
         if it was a software breakpoint (and the target doesn't
@@ -3642,10 +3580,9 @@ do_target_wait (ptid_t wait_ptid, execution_control_state *ecs, int options)
   random_selector = (int)
     ((num_inferiors * (double) rand ()) / (RAND_MAX + 1.0));
 
-  if (debug_infrun && num_inferiors > 1)
-    fprintf_unfiltered (gdb_stdlog,
-                       "infrun: Found %d inferiors, starting at #%d\n",
-                       num_inferiors, random_selector);
+  if (num_inferiors > 1)
+    infrun_debug_printf ("Found %d inferiors, starting at #%d",
+                        num_inferiors, random_selector);
 
   /* Select the Nth inferior that matched.  */
 
@@ -3709,9 +3646,7 @@ prepare_for_detach (void)
   if (displaced->step_thread == nullptr)
     return;
 
-  if (debug_infrun)
-    fprintf_unfiltered (gdb_stdlog,
-                       "displaced-stepping in-process while detaching");
+  infrun_debug_printf ("displaced-stepping in-process while detaching");
 
   scoped_restore restore_detaching = make_scoped_restore (&inf->detaching, true);
 
@@ -3770,9 +3705,7 @@ prepare_for_detach (void)
 static void
 wait_for_inferior (inferior *inf)
 {
-  if (debug_infrun)
-    fprintf_unfiltered
-      (gdb_stdlog, "infrun: wait_for_inferior ()\n");
+  infrun_debug_printf ("wait_for_inferior ()");
 
   SCOPE_EXIT { delete_just_stopped_threads_infrun_breakpoints (); };
 
@@ -4148,15 +4081,13 @@ nullify_last_target_wait_ptid (void)
 static void
 context_switch (execution_control_state *ecs)
 {
-  if (debug_infrun
-      && ecs->ptid != inferior_ptid
+  if (ecs->ptid != inferior_ptid
       && (inferior_ptid == null_ptid
          || ecs->event_thread != inferior_thread ()))
     {
-      fprintf_unfiltered (gdb_stdlog, "infrun: Switching context from %s ",
-                         target_pid_to_str (inferior_ptid).c_str ());
-      fprintf_unfiltered (gdb_stdlog, "to %s\n",
-                         target_pid_to_str (ecs->ptid).c_str ());
+      infrun_debug_printf ("Switching context from %s to %s",
+                          target_pid_to_str (inferior_ptid).c_str (),
+                          target_pid_to_str (ecs->ptid).c_str ());
     }
 
   switch_to_thread (ecs->event_thread);
@@ -4401,9 +4332,7 @@ handle_syscall_event (struct execution_control_state *ecs)
   if (catch_syscall_enabled () > 0
       && catching_syscall_number (syscall_number) > 0)
     {
-      if (debug_infrun)
-        fprintf_unfiltered (gdb_stdlog, "infrun: syscall number = '%d'\n",
-                            syscall_number);
+      infrun_debug_printf ("syscall number=%d", syscall_number);
 
       ecs->event_thread->control.stop_bpstat
        = bpstat_stop_status (regcache->aspace (),
@@ -4599,17 +4528,11 @@ wait_one ()
 static void
 save_waitstatus (struct thread_info *tp, const target_waitstatus *ws)
 {
-  if (debug_infrun)
-    {
-      std::string statstr = target_waitstatus_to_string (ws);
-
-      fprintf_unfiltered (gdb_stdlog,
-                         "infrun: saving status %s for %d.%ld.%ld\n",
-                         statstr.c_str (),
-                         tp->ptid.pid (),
-                         tp->ptid.lwp (),
-                         tp->ptid.tid ());
-    }
+  infrun_debug_printf ("saving status %s for %d.%ld.%ld",
+                      target_waitstatus_to_string (ws).c_str (),
+                      tp->ptid.pid (),
+                      tp->ptid.lwp (),
+                      tp->ptid.tid ());
 
   /* Record for later.  */
   tp->suspend.waitstatus = *ws;
@@ -4720,8 +4643,7 @@ stop_all_threads (void)
 
   gdb_assert (exists_non_stop_target ());
 
-  if (debug_infrun)
-    fprintf_unfiltered (gdb_stdlog, "infrun: stop_all_threads\n");
+  infrun_debug_printf ("starting");
 
   scoped_restore_current_thread restore_thread;
 
@@ -4741,8 +4663,10 @@ stop_all_threads (void)
          target_thread_events (false);
        }
 
+      /* Use infrun_debug_printf_1 directly to get a meaningful function
+         name.  */
       if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog, "infrun: stop_all_threads done\n");
+       infrun_debug_printf_1 ("stop_all_threads", "done");
     };
 
   /* Request threads to stop, and then wait for the stops.  Because
@@ -4752,10 +4676,7 @@ stop_all_threads (void)
      until two passes find no threads that need to be stopped.  */
   for (pass = 0; pass < 2; pass++, iterations++)
     {
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog,
-                           "infrun: stop_all_threads, pass=%d, "
-                           "iterations=%d\n", pass, iterations);
+      infrun_debug_printf ("pass=%d, iterations=%d", pass, iterations);
       while (1)
        {
          int waits_needed = 0;
@@ -4787,21 +4708,15 @@ stop_all_threads (void)
                     We just haven't seen the notification yet.  */
                  if (!t->stop_requested)
                    {
-                     if (debug_infrun)
-                       fprintf_unfiltered (gdb_stdlog,
-                                           "infrun:   %s executing, "
-                                           "need stop\n",
-                                           target_pid_to_str (t->ptid).c_str ());
+                     infrun_debug_printf ("  %s executing, need stop",
+                                          target_pid_to_str (t->ptid).c_str ());
                      target_stop (t->ptid);
                      t->stop_requested = 1;
                    }
                  else
                    {
-                     if (debug_infrun)
-                       fprintf_unfiltered (gdb_stdlog,
-                                           "infrun:   %s executing, "
-                                           "already stopping\n",
-                                           target_pid_to_str (t->ptid).c_str ());
+                     infrun_debug_printf ("  %s executing, already stopping",
+                                          target_pid_to_str (t->ptid).c_str ());
                    }
 
                  if (t->stop_requested)
@@ -4809,10 +4724,8 @@ stop_all_threads (void)
                }
              else
                {
-                 if (debug_infrun)
-                   fprintf_unfiltered (gdb_stdlog,
-                                       "infrun:   %s not executing\n",
-                                       target_pid_to_str (t->ptid).c_str ());
+                 infrun_debug_printf ("  %s not executing",
+                                      target_pid_to_str (t->ptid).c_str ());
 
                  /* The thread may be not executing, but still be
                     resumed with a pending status to process.  */
@@ -4833,13 +4746,9 @@ stop_all_threads (void)
            {
              wait_one_event event = wait_one ();
 
-             if (debug_infrun)
-               {
-                 fprintf_unfiltered (gdb_stdlog,
-                                     "infrun: stop_all_threads %s %s\n",
-                                     target_waitstatus_to_string (&event.ws).c_str (),
-                                     target_pid_to_str (event.ptid).c_str ());
-               }
+             infrun_debug_printf
+               ("%s %s", target_waitstatus_to_string (&event.ws).c_str (),
+                target_pid_to_str (event.ptid).c_str ());
 
              if (event.ws.kind == TARGET_WAITKIND_NO_RESUMED)
                {
@@ -4874,10 +4783,8 @@ stop_all_threads (void)
                         of going into an infinite loop.  */
                      gdb_assert (t != nullptr);
 
-                     if (debug_infrun)
-                       fprintf_unfiltered (gdb_stdlog,
-                                           "infrun: stop_all_threads, using %s\n",
-                                           target_pid_to_str (t->ptid).c_str ());
+                     infrun_debug_printf
+                       ("using %s", target_pid_to_str (t->ptid).c_str ());
                    }
                  else
                    {
@@ -4931,14 +4838,11 @@ stop_all_threads (void)
                      if (displaced_step_fixup (t, GDB_SIGNAL_0) < 0)
                        {
                          /* Add it back to the step-over queue.  */
-                         if (debug_infrun)
-                           {
-                             fprintf_unfiltered (gdb_stdlog,
-                                                 "infrun: displaced-step of %s "
-                                                 "canceled: adding back to the "
-                                                 "step-over queue\n",
-                                                 target_pid_to_str (t->ptid).c_str ());
-                           }
+                         infrun_debug_printf
+                           ("displaced-step of %s canceled: adding back to "
+                            "the step-over queue",
+                             target_pid_to_str (t->ptid).c_str ());
+
                          t->control.trap_expected = 0;
                          thread_step_over_chain_enqueue (t);
                        }
@@ -4948,18 +4852,10 @@ stop_all_threads (void)
                      enum gdb_signal sig;
                      struct regcache *regcache;
 
-                     if (debug_infrun)
-                       {
-                         std::string statstr = target_waitstatus_to_string (&event.ws);
-
-                         fprintf_unfiltered (gdb_stdlog,
-                                             "infrun: target_wait %s, saving "
-                                             "status for %d.%ld.%ld\n",
-                                             statstr.c_str (),
-                                             t->ptid.pid (),
-                                             t->ptid.lwp (),
-                                             t->ptid.tid ());
-                       }
+                     infrun_debug_printf
+                       ("target_wait %s, saving status for %d.%ld.%ld",
+                        target_waitstatus_to_string (&event.ws).c_str (),
+                        t->ptid.pid (), t->ptid.lwp (), t->ptid.tid ());
 
                      /* Record for later.  */
                      save_waitstatus (t, &event.ws);
@@ -4977,16 +4873,12 @@ stop_all_threads (void)
                      regcache = get_thread_regcache (t);
                      t->suspend.stop_pc = regcache_read_pc (regcache);
 
-                     if (debug_infrun)
-                       {
-                         fprintf_unfiltered (gdb_stdlog,
-                                             "infrun: saved stop_pc=%s for %s "
-                                             "(currently_stepping=%d)\n",
-                                             paddress (target_gdbarch (),
-                                                       t->suspend.stop_pc),
-                                             target_pid_to_str (t->ptid).c_str (),
-                                             currently_stepping (t));
-                       }
+                     infrun_debug_printf ("saved stop_pc=%s for %s "
+                                          "(currently_stepping=%d)",
+                                          paddress (target_gdbarch (),
+                                                    t->suspend.stop_pc),
+                                          target_pid_to_str (t->ptid).c_str (),
+                                          currently_stepping (t));
                    }
                }
            }
@@ -5017,10 +4909,7 @@ handle_no_resumed (struct execution_control_state *ecs)
             we're not synchronously waiting for events either.  Just
             ignore.  */
 
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: TARGET_WAITKIND_NO_RESUMED "
-                               "(ignoring: bg)\n");
+         infrun_debug_printf ("TARGET_WAITKIND_NO_RESUMED (ignoring: bg)");
          prepare_to_wait (ecs);
          return 1;
        }
@@ -5111,10 +5000,8 @@ handle_no_resumed (struct execution_control_state *ecs)
             target at some point, but there are now, or some target
             other than the eventing one has unwaited-for children
             left.  Just ignore.  */
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: TARGET_WAITKIND_NO_RESUMED "
-                               "(ignoring: found resumed)\n");
+         infrun_debug_printf ("TARGET_WAITKIND_NO_RESUMED "
+                              "(ignoring: found resumed)");
 
          ignore_event = true;
        }
@@ -5157,9 +5044,7 @@ handle_inferior_event (struct execution_control_state *ecs)
 
   enum stop_kind stop_soon;
 
-  if (debug_infrun)
-    fprintf_unfiltered (gdb_stdlog, "infrun: handle_inferior_event %s\n",
-                       target_waitstatus_to_string (&ecs->ws).c_str ());
+  infrun_debug_printf ("%s", target_waitstatus_to_string (&ecs->ws).c_str ());
 
   if (ecs->ws.kind == TARGET_WAITKIND_IGNORE)
     {
@@ -5242,9 +5127,7 @@ handle_inferior_event (struct execution_control_state *ecs)
       if (breakpoint_inserted_here_p (regcache->aspace (),
                                      regcache_read_pc (regcache)))
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: Treating signal as SIGTRAP\n");
+         infrun_debug_printf ("Treating signal as SIGTRAP");
          ecs->ws.value.sig = GDB_SIGNAL_TRAP;
        }
     }
@@ -5321,8 +5204,7 @@ handle_inferior_event (struct execution_control_state *ecs)
       if (stop_soon == STOP_QUIETLY_NO_SIGSTOP
          || stop_soon == STOP_QUIETLY_REMOTE)
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog, "infrun: quietly stopped\n");
+         infrun_debug_printf ("quietly stopped");
          stop_waiting (ecs);
          return;
        }
@@ -5406,9 +5288,8 @@ handle_inferior_event (struct execution_control_state *ecs)
                 information to the user.  It's better to just warn
                 her about it (if infrun debugging is enabled), and
                 give up.  */
-             if (debug_infrun)
-               fprintf_filtered (gdb_stdlog, _("\
-Cannot fill $_exitsignal with the correct signal number.\n"));
+             infrun_debug_printf ("Cannot fill $_exitsignal with the correct "
+                                  "signal number.");
            }
 
          gdb::observers::signal_exited.notify (ecs->ws.value.sig);
@@ -5674,8 +5555,7 @@ Cannot fill $_exitsignal with the correct signal number.\n"));
 
       /* Switch to the stopped thread.  */
       context_switch (ecs);
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog, "infrun: stopped\n");
+      infrun_debug_printf ("stopped");
 
       delete_just_stopped_threads_single_step_breakpoints ();
       ecs->event_thread->suspend.stop_pc
@@ -5706,41 +5586,30 @@ restart_threads (struct thread_info *event_thread)
 
       if (tp == event_thread)
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: restart threads: "
-                               "[%s] is event thread\n",
-                               target_pid_to_str (tp->ptid).c_str ());
+         infrun_debug_printf ("restart threads: [%s] is event thread",
+                              target_pid_to_str (tp->ptid).c_str ());
          continue;
        }
 
       if (!(tp->state == THREAD_RUNNING || tp->control.in_infcall))
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: restart threads: "
-                               "[%s] not meant to be running\n",
-                               target_pid_to_str (tp->ptid).c_str ());
+         infrun_debug_printf ("restart threads: [%s] not meant to be running",
+                              target_pid_to_str (tp->ptid).c_str ());
          continue;
        }
 
       if (tp->resumed)
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: restart threads: [%s] resumed\n",
-                               target_pid_to_str (tp->ptid).c_str ());
+         infrun_debug_printf ("restart threads: [%s] resumed",
+                             target_pid_to_str (tp->ptid).c_str ());
          gdb_assert (tp->executing || tp->suspend.waitstatus_pending_p);
          continue;
        }
 
       if (thread_is_in_step_over_chain (tp))
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: restart threads: "
-                               "[%s] needs step-over\n",
-                               target_pid_to_str (tp->ptid).c_str ());
+         infrun_debug_printf ("restart threads: [%s] needs step-over",
+                              target_pid_to_str (tp->ptid).c_str ());
          gdb_assert (!tp->resumed);
          continue;
        }
@@ -5748,11 +5617,8 @@ restart_threads (struct thread_info *event_thread)
 
       if (tp->suspend.waitstatus_pending_p)
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: restart threads: "
-                               "[%s] has pending status\n",
-                               target_pid_to_str (tp->ptid).c_str ());
+         infrun_debug_printf ("restart threads: [%s] has pending status",
+                              target_pid_to_str (tp->ptid).c_str ());
          tp->resumed = true;
          continue;
        }
@@ -5772,10 +5638,8 @@ restart_threads (struct thread_info *event_thread)
 
       if (currently_stepping (tp))
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: restart threads: [%s] was stepping\n",
-                               target_pid_to_str (tp->ptid).c_str ());
+         infrun_debug_printf ("restart threads: [%s] was stepping",
+                              target_pid_to_str (tp->ptid).c_str ());
          keep_going_stepped_thread (tp);
        }
       else
@@ -5783,10 +5647,8 @@ restart_threads (struct thread_info *event_thread)
          struct execution_control_state ecss;
          struct execution_control_state *ecs = &ecss;
 
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: restart threads: [%s] continuing\n",
-                               target_pid_to_str (tp->ptid).c_str ());
+         infrun_debug_printf ("restart threads: [%s] continuing",
+                              target_pid_to_str (tp->ptid).c_str ());
          reset_ecs (ecs, tp);
          switch_to_thread (tp);
          keep_going_pass_signal (ecs);
@@ -5879,12 +5741,8 @@ finish_step_over (struct execution_control_state *ecs)
          struct thread_info *tp = ecs->event_thread;
          struct regcache *regcache;
 
-         if (debug_infrun)
-           {
-             fprintf_unfiltered (gdb_stdlog,
-                                 "infrun: found resumed threads with "
-                                 "pending events, saving status\n");
-           }
+         infrun_debug_printf ("found resumed threads with "
+                              "pending events, saving status");
 
          gdb_assert (pending != tp);
 
@@ -5900,16 +5758,12 @@ finish_step_over (struct execution_control_state *ecs)
          regcache = get_thread_regcache (tp);
          tp->suspend.stop_pc = regcache_read_pc (regcache);
 
-         if (debug_infrun)
-           {
-             fprintf_unfiltered (gdb_stdlog,
-                                 "infrun: saved stop_pc=%s for %s "
-                                 "(currently_stepping=%d)\n",
-                                 paddress (target_gdbarch (),
-                                           tp->suspend.stop_pc),
-                                 target_pid_to_str (tp->ptid).c_str (),
-                                 currently_stepping (tp));
-           }
+         infrun_debug_printf ("saved stop_pc=%s for %s "
+                              "(currently_stepping=%d)",
+                              paddress (target_gdbarch (),
+                                        tp->suspend.stop_pc),
+                              target_pid_to_str (tp->ptid).c_str (),
+                              currently_stepping (tp));
 
          /* This in-line step-over finished; clear this so we won't
             start a new one.  This is what handle_signal_stop would
@@ -5965,22 +5819,20 @@ handle_signal_stop (struct execution_control_state *ecs)
 
       switch_to_thread (ecs->event_thread);
 
-      fprintf_unfiltered (gdb_stdlog, "infrun: stop_pc = %s\n",
-                         paddress (reg_gdbarch,
-                                   ecs->event_thread->suspend.stop_pc));
+      infrun_debug_printf ("stop_pc=%s",
+                          paddress (reg_gdbarch,
+                                    ecs->event_thread->suspend.stop_pc));
       if (target_stopped_by_watchpoint ())
        {
           CORE_ADDR addr;
 
-         fprintf_unfiltered (gdb_stdlog, "infrun: stopped by watchpoint\n");
+         infrun_debug_printf ("stopped by watchpoint");
 
          if (target_stopped_data_address (current_top_target (), &addr))
-            fprintf_unfiltered (gdb_stdlog,
-                                "infrun: stopped data address = %s\n",
-                                paddress (reg_gdbarch, addr));
+           infrun_debug_printf ("stopped data address=%s",
+                                paddress (reg_gdbarch, addr));
           else
-            fprintf_unfiltered (gdb_stdlog,
-                                "infrun: (no data address available)\n");
+           infrun_debug_printf ("(no data address available)");
        }
     }
 
@@ -5990,8 +5842,7 @@ handle_signal_stop (struct execution_control_state *ecs)
   if (stop_soon == STOP_QUIETLY || stop_soon == STOP_QUIETLY_REMOTE)
     {
       context_switch (ecs);
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog, "infrun: quietly stopped\n");
+      infrun_debug_printf ("quietly stopped");
       stop_print_frame = 1;
       stop_waiting (ecs);
       return;
@@ -6032,8 +5883,7 @@ handle_signal_stop (struct execution_control_state *ecs)
      so, then switch to that thread.  */
   if (ecs->ptid != inferior_ptid)
     {
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog, "infrun: context switch\n");
+      infrun_debug_printf ("context switch");
 
       context_switch (ecs);
 
@@ -6064,25 +5914,16 @@ handle_signal_stop (struct execution_control_state *ecs)
        {
          if (single_step_breakpoint_inserted_here_p (aspace, pc))
            {
-             if (debug_infrun)
-               {
-                 fprintf_unfiltered (gdb_stdlog,
-                                     "infrun: [%s] hit another thread's "
-                                     "single-step breakpoint\n",
-                                     target_pid_to_str (ecs->ptid).c_str ());
-               }
+             infrun_debug_printf ("[%s] hit another thread's single-step "
+                                  "breakpoint",
+                                  target_pid_to_str (ecs->ptid).c_str ());
              ecs->hit_singlestep_breakpoint = 1;
            }
        }
       else
        {
-         if (debug_infrun)
-           {
-             fprintf_unfiltered (gdb_stdlog,
-                                 "infrun: [%s] hit its "
-                                 "single-step breakpoint\n",
-                                 target_pid_to_str (ecs->ptid).c_str ());
-           }
+         infrun_debug_printf ("[%s] hit its single-step breakpoint",
+                              target_pid_to_str (ecs->ptid).c_str ());
        }
     }
   delete_just_stopped_threads_single_step_breakpoints ();
@@ -6197,8 +6038,9 @@ handle_signal_stop (struct execution_control_state *ecs)
       int step_through_delay
        = gdbarch_single_step_through_delay (gdbarch, frame);
 
-      if (debug_infrun && step_through_delay)
-       fprintf_unfiltered (gdb_stdlog, "infrun: step through delay\n");
+      if (step_through_delay)
+       infrun_debug_printf ("step through delay");
+
       if (ecs->event_thread->control.step_range_end == 0
          && step_through_delay)
        {
@@ -6239,14 +6081,14 @@ handle_signal_stop (struct execution_control_state *ecs)
      simply make sure to ignore it if `stopped_by_watchpoint' is
      set.  */
 
-  if (debug_infrun
-      && ecs->event_thread->suspend.stop_signal == GDB_SIGNAL_TRAP
+  if (ecs->event_thread->suspend.stop_signal == GDB_SIGNAL_TRAP
       && !bpstat_explains_signal (ecs->event_thread->control.stop_bpstat,
                                  GDB_SIGNAL_TRAP)
       && stopped_by_watchpoint)
-    fprintf_unfiltered (gdb_stdlog,
-                       "infrun: no user watchpoint explains "
-                       "watchpoint SIGTRAP, ignoring\n");
+    {
+      infrun_debug_printf ("no user watchpoint explains watchpoint SIGTRAP, "
+                          "ignoring");
+    }
 
   /* NOTE: cagney/2003-03-29: These checks for a random signal
      at one stage in the past included checks for an inferior
@@ -6303,10 +6145,7 @@ handle_signal_stop (struct execution_control_state *ecs)
       else
        {
          /* A delayed software breakpoint event.  Ignore the trap.  */
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: delayed software breakpoint "
-                               "trap, ignoring\n");
+         infrun_debug_printf ("delayed software breakpoint trap, ignoring");
          random_signal = 0;
        }
     }
@@ -6316,10 +6155,8 @@ handle_signal_stop (struct execution_control_state *ecs)
   if (random_signal && target_stopped_by_hw_breakpoint ())
     {
       /* A delayed hardware breakpoint event.  Ignore the trap.  */
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog,
-                           "infrun: delayed hardware breakpoint/watchpoint "
-                           "trap, ignoring\n");
+      infrun_debug_printf ("delayed hardware breakpoint/watchpoint "
+                          "trap, ignoring");
       random_signal = 0;
     }
 
@@ -6343,8 +6180,7 @@ handle_signal_stop (struct execution_control_state *ecs)
   if (ecs->event_thread->stop_requested)
     {
       random_signal = 1;
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog, "infrun: user-requested stop\n");
+      infrun_debug_printf ("user-requested stop");
     }
 
   /* For the program's own signals, act according to
@@ -6356,9 +6192,8 @@ handle_signal_stop (struct execution_control_state *ecs)
       struct inferior *inf = find_inferior_ptid (ecs->target, ecs->ptid);
       enum gdb_signal stop_signal = ecs->event_thread->suspend.stop_signal;
 
-      if (debug_infrun)
-        fprintf_unfiltered (gdb_stdlog, "infrun: random signal (%s)\n",
-                            gdb_signal_to_symbol_string (stop_signal));
+      infrun_debug_printf ("random signal (%s)",
+                          gdb_signal_to_symbol_string (stop_signal));
 
       stopped_by_random_signal = 1;
 
@@ -6403,10 +6238,7 @@ handle_signal_stop (struct execution_control_state *ecs)
             code paths as single-step - set a breakpoint at the
             signal return address and then, once hit, step off that
             breakpoint.  */
-          if (debug_infrun)
-            fprintf_unfiltered (gdb_stdlog,
-                                "infrun: signal arrived while stepping over "
-                                "breakpoint\n");
+         infrun_debug_printf ("signal arrived while stepping over breakpoint");
 
          insert_hp_step_resume_breakpoint_at_frame (frame);
          ecs->event_thread->step_after_step_resume_breakpoint = 1;
@@ -6437,10 +6269,7 @@ handle_signal_stop (struct execution_control_state *ecs)
             Note that this is only needed for a signal delivered
             while in the single-step range.  Nested signals aren't a
             problem as they eventually all return.  */
-          if (debug_infrun)
-            fprintf_unfiltered (gdb_stdlog,
-                                "infrun: signal may take us out of "
-                                "single-step range\n");
+         infrun_debug_printf ("signal may take us out of single-step range");
 
          clear_step_over_info ();
          insert_hp_step_resume_breakpoint_at_frame (frame);
@@ -6460,9 +6289,7 @@ handle_signal_stop (struct execution_control_state *ecs)
 
       if (!switch_back_to_stepped_thread (ecs))
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: random signal, keep going\n");
+         infrun_debug_printf ("random signal, keep going");
 
          keep_going (ecs);
        }
@@ -6516,9 +6343,7 @@ process_event_stop_test (struct execution_control_state *ecs)
         install a momentary breakpoint at the target of the
         jmp_buf.  */
 
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog,
-                           "infrun: BPSTAT_WHAT_SET_LONGJMP_RESUME\n");
+      infrun_debug_printf ("BPSTAT_WHAT_SET_LONGJMP_RESUME");
 
       ecs->event_thread->stepping_over_breakpoint = 1;
 
@@ -6539,10 +6364,8 @@ process_event_stop_test (struct execution_control_state *ecs)
                   || !gdbarch_get_longjmp_target (gdbarch,
                                                   frame, &jmp_buf_pc))
            {
-             if (debug_infrun)
-               fprintf_unfiltered (gdb_stdlog,
-                                   "infrun: BPSTAT_WHAT_SET_LONGJMP_RESUME "
-                                   "(!gdbarch_get_longjmp_target)\n");
+             infrun_debug_printf ("BPSTAT_WHAT_SET_LONGJMP_RESUME "
+                                  "(!gdbarch_get_longjmp_target)");
              keep_going (ecs);
              return;
            }
@@ -6577,9 +6400,7 @@ process_event_stop_test (struct execution_control_state *ecs)
           against stale dummy frames and user is not interested in
           stopping around longjmps.  */
 
-       if (debug_infrun)
-         fprintf_unfiltered (gdb_stdlog,
-                             "infrun: BPSTAT_WHAT_CLEAR_LONGJMP_RESUME\n");
+       infrun_debug_printf ("BPSTAT_WHAT_CLEAR_LONGJMP_RESUME");
 
        gdb_assert (ecs->event_thread->control.exception_resume_breakpoint
                    != NULL);
@@ -6625,16 +6446,14 @@ process_event_stop_test (struct execution_control_state *ecs)
       return;
 
     case BPSTAT_WHAT_SINGLE:
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog, "infrun: BPSTAT_WHAT_SINGLE\n");
+      infrun_debug_printf ("BPSTAT_WHAT_SINGLE");
       ecs->event_thread->stepping_over_breakpoint = 1;
       /* Still need to check other stuff, at least the case where we
         are stepping and step out of the right range.  */
       break;
 
     case BPSTAT_WHAT_STEP_RESUME:
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog, "infrun: BPSTAT_WHAT_STEP_RESUME\n");
+      infrun_debug_printf ("BPSTAT_WHAT_STEP_RESUME");
 
       delete_step_resume_breakpoint (ecs->event_thread);
       if (ecs->event_thread->control.proceed_to_finish
@@ -6666,8 +6485,7 @@ process_event_stop_test (struct execution_control_state *ecs)
       break;
 
     case BPSTAT_WHAT_STOP_NOISY:
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog, "infrun: BPSTAT_WHAT_STOP_NOISY\n");
+      infrun_debug_printf ("BPSTAT_WHAT_STOP_NOISY");
       stop_print_frame = 1;
 
       /* Assume the thread stopped for a breakpoint.  We'll still check
@@ -6679,8 +6497,7 @@ process_event_stop_test (struct execution_control_state *ecs)
       return;
 
     case BPSTAT_WHAT_STOP_SILENT:
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog, "infrun: BPSTAT_WHAT_STOP_SILENT\n");
+      infrun_debug_printf ("BPSTAT_WHAT_STOP_SILENT");
       stop_print_frame = 0;
 
       /* Assume the thread stopped for a breakpoint.  We'll still check
@@ -6691,8 +6508,7 @@ process_event_stop_test (struct execution_control_state *ecs)
       return;
 
     case BPSTAT_WHAT_HP_STEP_RESUME:
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog, "infrun: BPSTAT_WHAT_HP_STEP_RESUME\n");
+      infrun_debug_printf ("BPSTAT_WHAT_HP_STEP_RESUME");
 
       delete_step_resume_breakpoint (ecs->event_thread);
       if (ecs->event_thread->step_after_step_resume_breakpoint)
@@ -6727,10 +6543,7 @@ process_event_stop_test (struct execution_control_state *ecs)
          && sr_bp->type == bp_hp_step_resume
          && sr_bp->loc->address == ecs->event_thread->prev_pc)
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: stepped permanent breakpoint, stopped in "
-                               "handler\n");
+         infrun_debug_printf ("stepped permanent breakpoint, stopped in handler");
          delete_step_resume_breakpoint (ecs->event_thread);
          ecs->event_thread->step_after_step_resume_breakpoint = 0;
        }
@@ -6748,9 +6561,7 @@ process_event_stop_test (struct execution_control_state *ecs)
 
   if (ecs->event_thread->control.step_resume_breakpoint)
     {
-      if (debug_infrun)
-        fprintf_unfiltered (gdb_stdlog,
-                            "infrun: step-resume breakpoint is inserted\n");
+      infrun_debug_printf ("step-resume breakpoint is inserted");
 
       /* Having a step-resume breakpoint overrides anything
          else having to do with stepping commands until
@@ -6761,8 +6572,7 @@ process_event_stop_test (struct execution_control_state *ecs)
 
   if (ecs->event_thread->control.step_range_end == 0)
     {
-      if (debug_infrun)
-        fprintf_unfiltered (gdb_stdlog, "infrun: no stepping, continue\n");
+      infrun_debug_printf ("no stepping, continue");
       /* Likewise if we aren't even stepping.  */
       keep_going (ecs);
       return;
@@ -6791,11 +6601,10 @@ process_event_stop_test (struct execution_control_state *ecs)
          || frame_id_eq (get_frame_id (frame),
                          ecs->event_thread->control.step_frame_id)))
     {
-      if (debug_infrun)
-       fprintf_unfiltered
-         (gdb_stdlog, "infrun: stepping inside range [%s-%s]\n",
-          paddress (gdbarch, ecs->event_thread->control.step_range_start),
-          paddress (gdbarch, ecs->event_thread->control.step_range_end));
+      infrun_debug_printf
+       ("stepping inside range [%s-%s]",
+        paddress (gdbarch, ecs->event_thread->control.step_range_start),
+        paddress (gdbarch, ecs->event_thread->control.step_range_end));
 
       /* Tentatively re-enable range stepping; `resume' disables it if
         necessary (e.g., if we're stepping over a breakpoint or we
@@ -6838,9 +6647,7 @@ process_event_stop_test (struct execution_control_state *ecs)
        gdbarch_skip_solib_resolver (gdbarch,
                                     ecs->event_thread->suspend.stop_pc);
 
-      if (debug_infrun)
-        fprintf_unfiltered (gdb_stdlog,
-                            "infrun: stepped into dynsym resolve code\n");
+      infrun_debug_printf ("stepped into dynsym resolve code");
 
       if (pc_after_resolver)
        {
@@ -6863,9 +6670,7 @@ process_event_stop_test (struct execution_control_state *ecs)
       && gdbarch_in_indirect_branch_thunk (gdbarch,
                                           ecs->event_thread->suspend.stop_pc))
     {
-      if (debug_infrun)
-        fprintf_unfiltered (gdb_stdlog,
-                            "infrun: stepped into indirect branch thunk\n");
+      infrun_debug_printf ("stepped into indirect branch thunk");
       keep_going (ecs);
       return;
     }
@@ -6875,9 +6680,7 @@ process_event_stop_test (struct execution_control_state *ecs)
          || ecs->event_thread->control.step_over_calls == STEP_OVER_ALL)
       && get_frame_type (frame) == SIGTRAMP_FRAME)
     {
-      if (debug_infrun)
-        fprintf_unfiltered (gdb_stdlog,
-                            "infrun: stepped into signal trampoline\n");
+      infrun_debug_printf ("stepped into signal trampoline");
       /* The inferior, while doing a "step" or "next", has ended up in
          a signal trampoline (either by a signal being delivered or by
          the signal handler returning).  Just single-step until the
@@ -6902,9 +6705,7 @@ process_event_stop_test (struct execution_control_state *ecs)
       CORE_ADDR real_stop_pc
        = gdbarch_skip_trampoline_code (gdbarch, frame, stop_pc);
 
-      if (debug_infrun)
-        fprintf_unfiltered (gdb_stdlog,
-                            "infrun: stepped into solib return tramp\n");
+      infrun_debug_printf ("stepped into solib return tramp");
 
       /* Only proceed through if we know where it's going.  */
       if (real_stop_pc)
@@ -6957,8 +6758,7 @@ process_event_stop_test (struct execution_control_state *ecs)
       CORE_ADDR stop_pc = ecs->event_thread->suspend.stop_pc;
       CORE_ADDR real_stop_pc;
 
-      if (debug_infrun)
-        fprintf_unfiltered (gdb_stdlog, "infrun: stepped into subroutine\n");
+      infrun_debug_printf ("stepped into subroutine");
 
       if (ecs->event_thread->control.step_over_calls == STEP_OVER_NONE)
        {
@@ -7155,9 +6955,7 @@ process_event_stop_test (struct execution_control_state *ecs)
       && ecs->stop_func_name == NULL
       && stop_pc_sal.line == 0)
     {
-      if (debug_infrun)
-        fprintf_unfiltered (gdb_stdlog,
-                            "infrun: stepped into undebuggable function\n");
+      infrun_debug_printf ("stepped into undebuggable function");
 
       /* The inferior just stepped into, or returned to, an
          undebuggable function (where there is no debugging information
@@ -7190,8 +6988,7 @@ process_event_stop_test (struct execution_control_state *ecs)
     {
       /* It is stepi or nexti.  We always want to stop stepping after
          one instruction.  */
-      if (debug_infrun)
-        fprintf_unfiltered (gdb_stdlog, "infrun: stepi/nexti\n");
+      infrun_debug_printf ("stepi/nexti");
       end_stepping_range (ecs);
       return;
     }
@@ -7202,8 +6999,7 @@ process_event_stop_test (struct execution_control_state *ecs)
          stepping (does this always happen right after one instruction,
          when we do "s" in a function with no line numbers,
          or can this happen as a result of a return or longjmp?).  */
-      if (debug_infrun)
-        fprintf_unfiltered (gdb_stdlog, "infrun: no line number info\n");
+      infrun_debug_printf ("line number info");
       end_stepping_range (ecs);
       return;
     }
@@ -7216,9 +7012,7 @@ process_event_stop_test (struct execution_control_state *ecs)
                   ecs->event_thread->control.step_frame_id)
       && inline_skipped_frames (ecs->event_thread))
     {
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog,
-                           "infrun: stepped into inlined function\n");
+      infrun_debug_printf ("stepped into inlined function");
 
       symtab_and_line call_sal = find_frame_sal (get_current_frame ());
 
@@ -7268,9 +7062,7 @@ process_event_stop_test (struct execution_control_state *ecs)
       && stepped_in_from (get_current_frame (),
                          ecs->event_thread->control.step_frame_id))
     {
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog,
-                           "infrun: stepping through inlined function\n");
+      infrun_debug_printf ("stepping through inlined function");
 
       if (ecs->event_thread->control.step_over_calls == STEP_OVER_ALL
          || inline_frame_is_marked_for_skip (false, ecs->event_thread))
@@ -7291,9 +7083,7 @@ process_event_stop_test (struct execution_control_state *ecs)
             we don't stop if we step into the middle of a different line.
             That is said to make things like for (;;) statements work
             better.  */
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: stepped to a different line\n");
+         infrun_debug_printf ("stepped to a different line");
          end_stepping_range (ecs);
          return;
        }
@@ -7305,10 +7095,8 @@ process_event_stop_test (struct execution_control_state *ecs)
             ignore this line table entry, and continue stepping forward,
             looking for a better place to stop.  */
          refresh_step_info = false;
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: stepped to a different line, but "
-                               "it's not the start of a statement\n");
+         infrun_debug_printf ("stepped to a different line, but "
+                              "it's not the start of a statement");
        }
     }
 
@@ -7332,8 +7120,7 @@ process_event_stop_test (struct execution_control_state *ecs)
   if (refresh_step_info)
     set_step_info (ecs->event_thread, frame, stop_pc_sal);
 
-  if (debug_infrun)
-     fprintf_unfiltered (gdb_stdlog, "infrun: keep going\n");
+  infrun_debug_printf ("keep going");
   keep_going (ecs);
 }
 
@@ -7365,12 +7152,9 @@ switch_back_to_stepped_thread (struct execution_control_state *ecs)
       if (ecs->event_thread->control.trap_expected
          && ecs->event_thread->suspend.stop_signal != GDB_SIGNAL_TRAP)
        {
-         if (debug_infrun)
-           {
-             fprintf_unfiltered (gdb_stdlog,
-                                 "infrun: need to finish step-over of [%s]\n",
-                                 target_pid_to_str (ecs->event_thread->ptid).c_str ());
-           }
+         infrun_debug_printf
+           ("need to finish step-over of [%s]",
+            target_pid_to_str (ecs->event_thread->ptid).c_str ());
          keep_going (ecs);
          return 1;
        }
@@ -7379,13 +7163,8 @@ switch_back_to_stepped_thread (struct execution_control_state *ecs)
         breakpoint of another thread.  */
       if (ecs->hit_singlestep_breakpoint)
        {
-        if (debug_infrun)
-          {
-            fprintf_unfiltered (gdb_stdlog,
-                                "infrun: need to step [%s] over single-step "
-                                "breakpoint\n",
-                                target_pid_to_str (ecs->ptid).c_str ());
-          }
+        infrun_debug_printf ("need to step [%s] over single-step breakpoint",
+                             target_pid_to_str (ecs->ptid).c_str ());
         keep_going (ecs);
         return 1;
        }
@@ -7395,12 +7174,9 @@ switch_back_to_stepped_thread (struct execution_control_state *ecs)
         another thread.  */
       if (thread_still_needs_step_over (ecs->event_thread))
        {
-         if (debug_infrun)
-           {
-             fprintf_unfiltered (gdb_stdlog,
-                                 "infrun: thread [%s] still needs step-over\n",
-                                 target_pid_to_str (ecs->event_thread->ptid).c_str ());
-           }
+         infrun_debug_printf
+           ("thread [%s] still needs step-over",
+            target_pid_to_str (ecs->event_thread->ptid).c_str ());
          keep_going (ecs);
          return 1;
        }
@@ -7479,9 +7255,7 @@ switch_back_to_stepped_thread (struct execution_control_state *ecs)
 
       if (stepping_thread != NULL)
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: switching back to stepped thread\n");
+         infrun_debug_printf ("switching back to stepped thread");
 
          if (keep_going_stepped_thread (stepping_thread))
            {
@@ -7527,18 +7301,14 @@ keep_going_stepped_thread (struct thread_info *tp)
 
   if (tp->state == THREAD_EXITED || !target_thread_alive (tp->ptid))
     {
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog,
-                           "infrun: not resuming previously  "
-                           "stepped thread, it has vanished\n");
+      infrun_debug_printf ("not resuming previously stepped thread, it has "
+                          "vanished");
 
       delete_thread (tp);
       return 0;
     }
 
-  if (debug_infrun)
-    fprintf_unfiltered (gdb_stdlog,
-                       "infrun: resuming previously stepped thread\n");
+  infrun_debug_printf ("resuming previously stepped thread");
 
   reset_ecs (ecs, tp);
   switch_to_thread (tp);
@@ -7563,11 +7333,9 @@ keep_going_stepped_thread (struct thread_info *tp)
     {
       ptid_t resume_ptid;
 
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog,
-                           "infrun: expected thread advanced also (%s -> %s)\n",
-                           paddress (target_gdbarch (), tp->prev_pc),
-                           paddress (target_gdbarch (), tp->suspend.stop_pc));
+      infrun_debug_printf ("expected thread advanced also (%s -> %s)",
+                          paddress (target_gdbarch (), tp->prev_pc),
+                          paddress (target_gdbarch (), tp->suspend.stop_pc));
 
       /* Clear the info of the previous step-over, as it's no longer
         valid (if the thread was trying to step over a breakpoint, it
@@ -7589,9 +7357,7 @@ keep_going_stepped_thread (struct thread_info *tp)
     }
   else
     {
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog,
-                           "infrun: expected thread still hasn't advanced\n");
+      infrun_debug_printf ("expected thread still hasn't advanced");
 
       keep_going_pass_signal (ecs);
     }
@@ -7742,10 +7508,8 @@ insert_step_resume_breakpoint_at_sal_1 (struct gdbarch *gdbarch,
   gdb_assert (inferior_thread ()->control.step_resume_breakpoint == NULL);
   gdb_assert (sr_type == bp_step_resume || sr_type == bp_hp_step_resume);
 
-  if (debug_infrun)
-    fprintf_unfiltered (gdb_stdlog,
-                       "infrun: inserting step-resume breakpoint at %s\n",
-                       paddress (gdbarch, sr_sal.pc));
+  infrun_debug_printf ("inserting step-resume breakpoint at %s",
+                      paddress (gdbarch, sr_sal.pc));
 
   inferior_thread ()->control.step_resume_breakpoint
     = set_momentary_breakpoint (gdbarch, sr_sal, sr_id, sr_type).release ();
@@ -7831,10 +7595,8 @@ insert_longjmp_resume_breakpoint (struct gdbarch *gdbarch, CORE_ADDR pc)
      longjmp_resume_breakpoint when one is already active.  */
   gdb_assert (inferior_thread ()->control.exception_resume_breakpoint == NULL);
 
-  if (debug_infrun)
-    fprintf_unfiltered (gdb_stdlog,
-                       "infrun: inserting longjmp-resume breakpoint at %s\n",
-                       paddress (gdbarch, pc));
+  infrun_debug_printf ("inserting longjmp-resume breakpoint at %s",
+                      paddress (gdbarch, pc));
 
   inferior_thread ()->control.exception_resume_breakpoint =
     set_momentary_breakpoint_at_pc (gdbarch, pc, bp_longjmp_resume).release ();
@@ -7867,10 +7629,8 @@ insert_exception_resume_breakpoint (struct thread_info *tp,
        {
          handler = value_as_address (value);
 
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: exception resume at %lx\n",
-                               (unsigned long) handler);
+         infrun_debug_printf ("exception resume at %lx",
+                              (unsigned long) handler);
 
          bp = set_momentary_breakpoint_at_pc (get_frame_arch (frame),
                                               handler,
@@ -7907,11 +7667,8 @@ insert_exception_resume_from_probe (struct thread_info *tp,
 
   handler = value_as_address (arg_value);
 
-  if (debug_infrun)
-    fprintf_unfiltered (gdb_stdlog,
-                       "infrun: exception resume at %s\n",
-                       paddress (probe->objfile->arch (),
-                                 handler));
+  infrun_debug_printf ("exception resume at %s",
+                      paddress (probe->objfile->arch (), handler));
 
   bp = set_momentary_breakpoint_at_pc (get_frame_arch (frame),
                                       handler, bp_exception_resume).release ();
@@ -7990,8 +7747,7 @@ check_exception_resume (struct execution_control_state *ecs,
 static void
 stop_waiting (struct execution_control_state *ecs)
 {
-  if (debug_infrun)
-    fprintf_unfiltered (gdb_stdlog, "infrun: stop_waiting\n");
+  infrun_debug_printf ("stop_waiting");
 
   /* Let callers know we don't want to wait for the inferior anymore.  */
   ecs->wait_some_more = 0;
@@ -8019,11 +7775,9 @@ keep_going_pass_signal (struct execution_control_state *ecs)
     {
       struct thread_info *tp = ecs->event_thread;
 
-      if (debug_infrun)
-       fprintf_unfiltered (gdb_stdlog,
-                           "infrun: %s has trap_expected set, "
-                           "resuming to collect trap\n",
-                           target_pid_to_str (tp->ptid).c_str ());
+      infrun_debug_printf ("%s has trap_expected set, "
+                          "resuming to collect trap",
+                          target_pid_to_str (tp->ptid).c_str ());
 
       /* We haven't yet gotten our trap, and either: intercepted a
         non-signal event (e.g., a fork); or took a signal which we
@@ -8041,20 +7795,15 @@ keep_going_pass_signal (struct execution_control_state *ecs)
       if (ecs->hit_singlestep_breakpoint
          || thread_still_needs_step_over (tp))
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: step-over already in progress: "
-                               "step-over for %s deferred\n",
-                               target_pid_to_str (tp->ptid).c_str ());
+         infrun_debug_printf ("step-over already in progress: "
+                              "step-over for %s deferred",
+                              target_pid_to_str (tp->ptid).c_str ());
          thread_step_over_chain_enqueue (tp);
        }
       else
        {
-         if (debug_infrun)
-           fprintf_unfiltered (gdb_stdlog,
-                               "infrun: step-over in progress: "
-                               "resume of %s deferred\n",
-                               target_pid_to_str (tp->ptid).c_str ());
+         infrun_debug_printf ("step-over in progress: resume of %s deferred",
+                              target_pid_to_str (tp->ptid).c_str ());
        }
     }
   else
@@ -8154,8 +7903,7 @@ keep_going (struct execution_control_state *ecs)
 static void
 prepare_to_wait (struct execution_control_state *ecs)
 {
-  if (debug_infrun)
-    fprintf_unfiltered (gdb_stdlog, "infrun: prepare_to_wait\n");
+  infrun_debug_printf ("prepare_to_wait");
 
   ecs->wait_some_more = 1;
 
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