| 1 | /* Debugging routines for the remote server for GDB. |
| 2 | Copyright (C) 2014-2019 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GDB. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 3 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #include "server.h" |
| 20 | #include <chrono> |
| 21 | |
| 22 | #if !defined (IN_PROCESS_AGENT) |
| 23 | int remote_debug = 0; |
| 24 | #endif |
| 25 | |
| 26 | /* Enable miscellaneous debugging output. The name is historical - it |
| 27 | was originally used to debug LinuxThreads support. */ |
| 28 | int debug_threads; |
| 29 | |
| 30 | /* Include timestamps in debugging output. */ |
| 31 | int debug_timestamp; |
| 32 | |
| 33 | /* Print a debugging message. |
| 34 | If the text begins a new line it is preceded by a timestamp. |
| 35 | We don't get fancy with newline checking, we just check whether the |
| 36 | previous call ended with "\n". */ |
| 37 | |
| 38 | void |
| 39 | debug_vprintf (const char *format, va_list ap) |
| 40 | { |
| 41 | #if !defined (IN_PROCESS_AGENT) |
| 42 | /* N.B. Not thread safe, and can't be used, as is, with IPA. */ |
| 43 | static int new_line = 1; |
| 44 | |
| 45 | if (debug_timestamp && new_line) |
| 46 | { |
| 47 | using namespace std::chrono; |
| 48 | |
| 49 | steady_clock::time_point now = steady_clock::now (); |
| 50 | seconds s = duration_cast<seconds> (now.time_since_epoch ()); |
| 51 | microseconds us = duration_cast<microseconds> (now.time_since_epoch ()) - s; |
| 52 | |
| 53 | fprintf (stderr, "%ld.%06ld ", (long) s.count (), (long) us.count ()); |
| 54 | } |
| 55 | #endif |
| 56 | |
| 57 | vfprintf (stderr, format, ap); |
| 58 | |
| 59 | #if !defined (IN_PROCESS_AGENT) |
| 60 | if (*format) |
| 61 | new_line = format[strlen (format) - 1] == '\n'; |
| 62 | #endif |
| 63 | } |
| 64 | |
| 65 | /* Flush debugging output. |
| 66 | This is called, for example, when starting an inferior to ensure all debug |
| 67 | output thus far appears before any inferior output. */ |
| 68 | |
| 69 | void |
| 70 | debug_flush (void) |
| 71 | { |
| 72 | fflush (stderr); |
| 73 | } |
| 74 | |
| 75 | /* Notify the user that the code is entering FUNCTION_NAME. |
| 76 | FUNCTION_NAME is the name of the calling function, or NULL if unknown. |
| 77 | |
| 78 | This is intended to be called via the debug_enter macro. */ |
| 79 | |
| 80 | void |
| 81 | do_debug_enter (const char *function_name) |
| 82 | { |
| 83 | if (function_name != NULL) |
| 84 | debug_printf (">>>> entering %s\n", function_name); |
| 85 | } |
| 86 | |
| 87 | /* Notify the user that the code is exiting FUNCTION_NAME. |
| 88 | FUNCTION_NAME is the name of the calling function, or NULL if unknown. |
| 89 | |
| 90 | This is intended to be called via the debug_exit macro. */ |
| 91 | |
| 92 | void |
| 93 | do_debug_exit (const char *function_name) |
| 94 | { |
| 95 | if (function_name != NULL) |
| 96 | debug_printf ("<<<< exiting %s\n", function_name); |
| 97 | } |