| 1 | /* Support for complaint handling during symbol reading in GDB. |
| 2 | |
| 3 | Copyright (C) 1990-2018 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #include "defs.h" |
| 21 | #include "complaints.h" |
| 22 | #include "command.h" |
| 23 | #include "gdbcmd.h" |
| 24 | #include <unordered_map> |
| 25 | |
| 26 | /* Should each complaint message be self explanatory, or should we |
| 27 | assume that a series of complaints is being produced? */ |
| 28 | |
| 29 | enum complaint_series { |
| 30 | /* Isolated self explanatory message. */ |
| 31 | ISOLATED_MESSAGE, |
| 32 | |
| 33 | /* First message of a series, but does not need to include any sort |
| 34 | of explanation. */ |
| 35 | SHORT_FIRST_MESSAGE, |
| 36 | }; |
| 37 | |
| 38 | /* Map format strings to counters. */ |
| 39 | |
| 40 | static std::unordered_map<const char *, int> counters; |
| 41 | |
| 42 | /* How to print the next complaint. */ |
| 43 | |
| 44 | static complaint_series series; |
| 45 | |
| 46 | /* How many complaints about a particular thing should be printed |
| 47 | before we stop whining about it? Default is no whining at all, |
| 48 | since so many systems have ill-constructed symbol files. */ |
| 49 | |
| 50 | int stop_whining = 0; |
| 51 | |
| 52 | /* See complaints.h. */ |
| 53 | |
| 54 | void |
| 55 | complaint_internal (const char *fmt, ...) |
| 56 | { |
| 57 | va_list args; |
| 58 | |
| 59 | if (counters[fmt]++ > stop_whining) |
| 60 | return; |
| 61 | |
| 62 | va_start (args, fmt); |
| 63 | |
| 64 | if (deprecated_warning_hook) |
| 65 | (*deprecated_warning_hook) (fmt, args); |
| 66 | else |
| 67 | { |
| 68 | std::string msg = string_vprintf (fmt, args); |
| 69 | wrap_here (""); |
| 70 | begin_line (); |
| 71 | if (series == ISOLATED_MESSAGE) |
| 72 | fprintf_filtered (gdb_stderr, "During symbol reading, %s.\n", |
| 73 | msg.c_str ()); |
| 74 | else |
| 75 | fprintf_filtered (gdb_stderr, "%s...", msg.c_str ()); |
| 76 | } |
| 77 | |
| 78 | /* If GDB dumps core, we'd like to see the complaints first. |
| 79 | Presumably GDB will not be sending so many complaints that this |
| 80 | becomes a performance hog. */ |
| 81 | |
| 82 | gdb_flush (gdb_stderr); |
| 83 | va_end (args); |
| 84 | } |
| 85 | |
| 86 | /* Clear out / initialize all complaint counters that have ever been |
| 87 | incremented. If LESS_VERBOSE is 1, be less verbose about |
| 88 | successive complaints, since the messages are appearing all |
| 89 | together during a command that is reporting a contiguous block of |
| 90 | complaints (rather than being interleaved with other messages). */ |
| 91 | |
| 92 | void |
| 93 | clear_complaints (int less_verbose) |
| 94 | { |
| 95 | struct complain *p; |
| 96 | |
| 97 | counters.clear (); |
| 98 | |
| 99 | if (!less_verbose) |
| 100 | series = ISOLATED_MESSAGE; |
| 101 | else |
| 102 | series = SHORT_FIRST_MESSAGE; |
| 103 | } |
| 104 | |
| 105 | static void |
| 106 | complaints_show_value (struct ui_file *file, int from_tty, |
| 107 | struct cmd_list_element *cmd, const char *value) |
| 108 | { |
| 109 | fprintf_filtered (file, _("Max number of complaints about incorrect" |
| 110 | " symbols is %s.\n"), |
| 111 | value); |
| 112 | } |
| 113 | |
| 114 | void |
| 115 | _initialize_complaints (void) |
| 116 | { |
| 117 | add_setshow_zinteger_cmd ("complaints", class_support, |
| 118 | &stop_whining, _("\ |
| 119 | Set max number of complaints about incorrect symbols."), _("\ |
| 120 | Show max number of complaints about incorrect symbols."), NULL, |
| 121 | NULL, complaints_show_value, |
| 122 | &setlist, &showlist); |
| 123 | } |