[PATCH 04/34] Windows gdb: handle_output_debug_string return type

[Pedro Alves <pedro@palves.net>]

handle_output_debug_string returns a Windows thread id, so it should
return a DWORD instead of an int.

Change-Id: Icbd071a1a37de8a0fc8918bd13254a8d40311e32
---
 gdb/nat/windows-nat.h  |  2 +-
 gdb/windows-nat.c      | 16 ++++++++--------
 gdbserver/win32-low.cc |  2 +-
 gdbserver/win32-low.h  |  2 +-
 4 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/gdb/nat/windows-nat.h b/gdb/nat/windows-nat.h
index 9e8c87e81de..7d336346a86 100644
--- a/gdb/nat/windows-nat.h
+++ b/gdb/nat/windows-nat.h
@@ -196,7 +196,7 @@ struct windows_process_info
      a Cygwin signal.  Otherwise just print the string as a warning.
 
      This function must be supplied by the embedding application.  */
-  virtual int handle_output_debug_string (struct target_waitstatus *ourstatus) = 0;
+  virtual DWORD handle_output_debug_string (struct target_waitstatus *ourstatus) = 0;
 
   /* Handle a DLL load event.
 
diff --git a/gdb/windows-nat.c b/gdb/windows-nat.c
index 3a3dad5fb2e..4ffbeaaf7e4 100644
--- a/gdb/windows-nat.c
+++ b/gdb/windows-nat.c
@@ -93,7 +93,7 @@ struct windows_per_inferior : public windows_process_info
   windows_thread_info *find_thread (ptid_t ptid) override;
   windows_thread_info *thread_rec (ptid_t ptid,
 				   thread_disposition_type disposition) override;
-  int handle_output_debug_string (struct target_waitstatus *ourstatus) override;
+  DWORD handle_output_debug_string (struct target_waitstatus *ourstatus) override;
   void handle_load_dll (const char *dll_name, LPVOID base) override;
   void handle_unload_dll () override;
   bool handle_access_violation (const EXCEPTION_RECORD *rec) override;
@@ -996,11 +996,11 @@ signal_event_command (const char *args, int from_tty)
 
 /* See nat/windows-nat.h.  */
 
-int
+DWORD
 windows_per_inferior::handle_output_debug_string
      (struct target_waitstatus *ourstatus)
 {
-  int retval = 0;
+  DWORD thread_id = 0;
 
   gdb::unique_xmalloc_ptr<char> s
     = (target_read_string
@@ -1041,19 +1041,19 @@ windows_per_inferior::handle_output_debug_string
       if (gotasig)
 	{
 	  ourstatus->set_stopped (gotasig);
-	  retval = strtoul (p, &p, 0);
-	  if (!retval)
-	    retval = current_event.dwThreadId;
+	  thread_id = strtoul (p, &p, 0);
+	  if (thread_id == 0)
+	    thread_id = current_event.dwThreadId;
 	  else
 	    x = (LPCVOID) (uintptr_t) strtoull (p, NULL, 0);
 	}
 
       DEBUG_EVENTS ("gdb: cygwin signal %d, thread 0x%x, CONTEXT @ %p",
-		    gotasig, retval, x);
+		    gotasig, thread_id, x);
     }
 #endif
 
-  return retval;
+  return thread_id;
 }
 
 static int
diff --git a/gdbserver/win32-low.cc b/gdbserver/win32-low.cc
index 5a57eedd18b..5d3ad38cdbb 100644
--- a/gdbserver/win32-low.cc
+++ b/gdbserver/win32-low.cc
@@ -642,7 +642,7 @@ win32_process_target::attach (unsigned long pid)
 
 /* See nat/windows-nat.h.  */
 
-int
+DWORD
 gdbserver_windows_process::handle_output_debug_string
      (struct target_waitstatus *ourstatus)
 {
diff --git a/gdbserver/win32-low.h b/gdbserver/win32-low.h
index c725c182ac4..8162d975227 100644
--- a/gdbserver/win32-low.h
+++ b/gdbserver/win32-low.h
@@ -178,7 +178,7 @@ struct gdbserver_windows_process : public windows_nat::windows_process_info
   windows_nat::windows_thread_info *thread_rec
        (ptid_t ptid,
 	windows_nat::thread_disposition_type disposition) override;
-  int handle_output_debug_string (struct target_waitstatus *ourstatus) override;
+  DWORD handle_output_debug_string (struct target_waitstatus *ourstatus) override;
   void handle_load_dll (const char *dll_name, LPVOID base) override;
   void handle_unload_dll () override;
   bool handle_access_violation (const EXCEPTION_RECORD *rec) override;
-- 
2.43.2