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-rw-r--r--gdb/gdbserver/debug.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/gdb/gdbserver/debug.c b/gdb/gdbserver/debug.c
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+/* Debugging routines for the remote server for GDB.
+ Copyright (C) 2014 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "server.h"
+#include <sys/time.h>
+
+/* Enable miscellaneous debugging output. The name is historical - it
+ was originally used to debug LinuxThreads support. */
+int debug_threads;
+
+/* Include timestamps in debugging output. */
+int debug_timestamp;
+
+/* Print a debugging message.
+ If the text begins a new line it is preceded by a timestamp, if the
+ system has gettimeofday.
+ We don't get fancy with newline checking, we just check whether the
+ previous call ended with "\n". */
+
+void
+debug_printf (const char *msg, ...)
+{
+ va_list args;
+#if defined (HAVE_GETTIMEOFDAY) && !defined (IN_PROCESS_AGENT)
+ /* N.B. Not thread safe, and can't be used, as is, with IPA. */
+ static int new_line = 1;
+
+ if (debug_timestamp && new_line)
+ {
+ struct timeval tm;
+
+ gettimeofday (&tm, NULL);
+
+ /* If gettimeofday doesn't exist, and as a portability solution it has
+ been replaced with, e.g., time, then it doesn't make sense to print
+ the microseconds field. Is there a way to check for that? */
+ fprintf (stderr, "%ld:%06ld ", (long) tm.tv_sec, (long) tm.tv_usec);
+ }
+#endif
+
+ va_start (args, msg);
+ vfprintf (stderr, msg, args);
+ va_end (args);
+
+#if defined (HAVE_GETTIMEOFDAY) && !defined (IN_PROCESS_AGENT)
+ if (*msg)
+ new_line = msg[strlen (msg) - 1] == '\n';
+#endif
+}
+
+/* Flush debugging output.
+ This is called, for example, when starting an inferior to ensure all debug
+ output thus far appears before any inferior output. */
+
+void
+debug_flush (void)
+{
+ fflush (stderr);
+}
+
+/* Notify the user that the code is entering FUNCTION_NAME.
+ FUNCTION_NAME is the name of the calling function, or NULL if unknown.
+
+ This is intended to be called via the debug_enter macro. */
+
+void
+do_debug_enter (const char *function_name)
+{
+ if (function_name != NULL)
+ debug_printf (">>>> entering %s\n", function_name);
+}
+
+/* Notify the user that the code is exiting FUNCTION_NAME.
+ FUNCTION_NAME is the name of the calling function, or NULL if unknown.
+
+ This is intended to be called via the debug_exit macro. */
+
+void
+do_debug_exit (const char *function_name)
+{
+ if (function_name != NULL)
+ debug_printf ("<<<< exiting %s\n", function_name);
+}