gdbserver: Move remote_debug to a single place

A comment in debug.h (written in 2014) states: "We declare debug format
variables here, and debug_threads but no other debug content variables
(e.g., not remote_debug) because while this file is not currently used by
IPA it may be some day, and IPA may have its own set of debug content
variables".

This has resulted in remote_debug being declared in many .c/.h files
throughout gdbserver.

It would be much simplier to define it one place.  The most logical place to
define it is in debug.h, surrounded by #define guards.  If IPA is changed,
then at that point the variable can be moved elsewhere.

gdb/gdbserver/ChangeLog:

	* debug.c (remote_debug): Add definition.
	* debug.h (remote_debug): Add declaration.
	* hostio.c (remote_debug): Remove declaration.
	* remote-utils.c (struct ui_file): Likewise.
	(remote_debug): Likewise.
	* remote-utils.h (remote_debug): Likewise,
	* server.c (remote_debug): Remove definition.

diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index 2a5233b..0581f59 100644 (file)
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,3 +1,13 @@
+2019-04-17  Alan Hayward  <alan.hayward@arm.com>
+
+       * debug.c (remote_debug): Add definition.
+       * debug.h (remote_debug): Add declaration.
+       * hostio.c (remote_debug): Remove declaration.
+       * remote-utils.c (struct ui_file): Likewise.
+       (remote_debug): Likewise.
+       * remote-utils.h (remote_debug): Likewise,
+       * server.c (remote_debug): Remove definition.
+
 2019-04-10  Kevin Buettner  <kevinb@redhat.com>
 
        * linux-x86-low.c (x86_fill_gregset): Sign extend EAX value

diff --git a/gdb/gdbserver/debug.c b/gdb/gdbserver/debug.c
index a5b791b..7c4c77a 100644 (file)
--- a/gdb/gdbserver/debug.c
+++ b/gdb/gdbserver/debug.c
@@ -19,6 +19,10 @@
 #include "server.h"
 #include <chrono>
 
+#if !defined (IN_PROCESS_AGENT)
+int remote_debug = 0;
+#endif
+
 /* Enable miscellaneous debugging output.  The name is historical - it
    was originally used to debug LinuxThreads support.  */
 int debug_threads;

diff --git a/gdb/gdbserver/debug.h b/gdb/gdbserver/debug.h
index e40f28c..c8d5e33 100644 (file)
--- a/gdb/gdbserver/debug.h
+++ b/gdb/gdbserver/debug.h
@@ -19,13 +19,10 @@
 #ifndef GDBSERVER_DEBUG_H
 #define GDBSERVER_DEBUG_H
 
-/* We declare debug format variables here, and debug_threads but no other
-   debug content variables (e.g., not remote_debug) because while this file
-   is not currently used by IPA it may be some day, and IPA may have its own
-   set of debug content variables.  It's ok to declare debug_threads here
-   because it is misnamed - a better name is debug_basic or some such,
-   which can work for any program, gdbserver or IPA.  If/when this file is
-   used with IPA it is recommended to fix debug_thread's name.  */
+#if !defined (IN_PROCESS_AGENT)
+extern int remote_debug;
+#endif
+
 extern int debug_threads;
 extern int debug_timestamp;
 

diff --git a/gdb/gdbserver/hostio.c b/gdb/gdbserver/hostio.c
index cf75de0..eedf6d9 100644 (file)
--- a/gdb/gdbserver/hostio.c
+++ b/gdb/gdbserver/hostio.c
@@ -29,8 +29,6 @@
 #include <sys/stat.h>
 #include "common/fileio.h"
 
-extern int remote_debug;
-
 struct fd_list
 {
   int fd;

diff --git a/gdb/gdbserver/remote-utils.c b/gdb/gdbserver/remote-utils.c
index 4e6f9c6..903d773 100644 (file)
--- a/gdb/gdbserver/remote-utils.c
+++ b/gdb/gdbserver/remote-utils.c
@@ -108,9 +108,6 @@ struct sym_cache
   struct sym_cache *next;
 };
 
-int remote_debug = 0;
-struct ui_file *gdb_stdlog;
-
 static int remote_is_stdio = 0;
 
 static gdb_fildes_t remote_desc = INVALID_DESCRIPTOR;

diff --git a/gdb/gdbserver/remote-utils.h b/gdb/gdbserver/remote-utils.h
index 587afdb..4ca5d94 100644 (file)
--- a/gdb/gdbserver/remote-utils.h
+++ b/gdb/gdbserver/remote-utils.h
@@ -19,8 +19,6 @@
 #ifndef GDBSERVER_REMOTE_UTILS_H
 #define GDBSERVER_REMOTE_UTILS_H
 
-extern int remote_debug;
-
 int gdb_connected (void);
 
 #define STDIO_CONNECTION_NAME "stdio"

diff --git a/gdb/gdbserver/server.c b/gdb/gdbserver/server.c
index f2c8f15..3f6c849 100644 (file)
--- a/gdb/gdbserver/server.c
+++ b/gdb/gdbserver/server.c
@@ -328,8 +328,6 @@ attach_inferior (int pid)
   return 0;
 }
 
-extern int remote_debug;
-
 /* Decode a qXfer read request.  Return 0 if everything looks OK,
    or -1 otherwise.  */