| 1 | // debug.h -- gold internal debugging support -*- C++ -*- |
| 2 | |
| 3 | // Copyright 2007, 2008 Free Software Foundation, Inc. |
| 4 | // Written by Ian Lance Taylor <iant@google.com>. |
| 5 | |
| 6 | // This file is part of gold. |
| 7 | |
| 8 | // This program is free software; you can redistribute it and/or modify |
| 9 | // it under the terms of the GNU General Public License as published by |
| 10 | // the Free Software Foundation; either version 3 of the License, or |
| 11 | // (at your option) any later version. |
| 12 | |
| 13 | // This program is distributed in the hope that it will be useful, |
| 14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | // GNU General Public License for more details. |
| 17 | |
| 18 | // You should have received a copy of the GNU General Public License |
| 19 | // along with this program; if not, write to the Free Software |
| 20 | // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 21 | // MA 02110-1301, USA. |
| 22 | |
| 23 | #ifndef GOLD_DEBUG_H |
| 24 | #define GOLD_DEBUG_H |
| 25 | |
| 26 | #include <cstring> |
| 27 | |
| 28 | #include "parameters.h" |
| 29 | #include "errors.h" |
| 30 | |
| 31 | namespace gold |
| 32 | { |
| 33 | |
| 34 | // The different types of debugging we support. These are bitflags. |
| 35 | |
| 36 | const int DEBUG_TASK = 0x1; |
| 37 | const int DEBUG_SCRIPT = 0x2; |
| 38 | const int DEBUG_FILES = 0x4; |
| 39 | |
| 40 | const int DEBUG_ALL = DEBUG_TASK | DEBUG_SCRIPT | DEBUG_FILES; |
| 41 | |
| 42 | // Convert a debug string to the appropriate enum. |
| 43 | inline int |
| 44 | debug_string_to_enum(const char* arg) |
| 45 | { |
| 46 | static const struct { const char* name; int value; } |
| 47 | debug_options[] = |
| 48 | { |
| 49 | { "task", DEBUG_TASK }, |
| 50 | { "script", DEBUG_SCRIPT }, |
| 51 | { "files", DEBUG_FILES }, |
| 52 | { "all", DEBUG_ALL } |
| 53 | }; |
| 54 | |
| 55 | int retval = 0; |
| 56 | for (size_t i = 0; i < sizeof(debug_options) / sizeof(*debug_options); ++i) |
| 57 | if (strstr(arg, debug_options[i].name)) |
| 58 | retval |= debug_options[i].value; |
| 59 | return retval; |
| 60 | } |
| 61 | |
| 62 | // Print a debug message if TYPE is enabled. This is a macro so that |
| 63 | // we only evaluate the arguments if necessary. |
| 64 | |
| 65 | #define gold_debug(TYPE, FORMAT, ...) \ |
| 66 | do \ |
| 67 | { \ |
| 68 | if (is_debugging_enabled(TYPE)) \ |
| 69 | parameters->errors()->debug(FORMAT, __VA_ARGS__); \ |
| 70 | } \ |
| 71 | while (0) |
| 72 | |
| 73 | } // End namespace gold. |
| 74 | |
| 75 | #endif // !defined(GOLD_DEBUG_H) |