1 //===-- ProcessGDBRemoteLog.cpp ---------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "ProcessGDBRemoteLog.h" 11 12 #include "lldb/Interpreter/Args.h" 13 #include "lldb/Core/StreamFile.h" 14 15 #include "ProcessGDBRemote.h" 16 17 using namespace lldb; 18 using namespace lldb_private; 19 20 21 // We want to avoid global constructors where code needs to be run so here we 22 // control access to our static g_log_sp by hiding it in a singleton function 23 // that will construct the static g_lob_sp the first time this function is 24 // called. 25 static LogSP & 26 GetLog () 27 { 28 static LogSP g_log_sp; 29 return g_log_sp; 30 } 31 32 LogSP 33 ProcessGDBRemoteLog::GetLogIfAllCategoriesSet (uint32_t mask) 34 { 35 LogSP log(GetLog ()); 36 if (log && mask) 37 { 38 uint32_t log_mask = log->GetMask().Get(); 39 if ((log_mask & mask) != mask) 40 return LogSP(); 41 } 42 return log; 43 } 44 45 void 46 ProcessGDBRemoteLog::DisableLog (Args &args, Stream *feedback_strm) 47 { 48 LogSP log (GetLog ()); 49 if (log) 50 { 51 uint32_t flag_bits = 0; 52 53 const size_t argc = args.GetArgumentCount (); 54 if (argc > 0) 55 { 56 flag_bits = log->GetMask().Get(); 57 for (size_t i = 0; i < argc; ++i) 58 { 59 const char *arg = args.GetArgumentAtIndex (i); 60 61 62 if (::strcasecmp (arg, "all") == 0 ) flag_bits &= ~GDBR_LOG_ALL; 63 else if (::strcasecmp (arg, "async") == 0 ) flag_bits &= ~GDBR_LOG_ASYNC; 64 else if (::strcasestr (arg, "break") == arg ) flag_bits &= ~GDBR_LOG_BREAKPOINTS; 65 else if (::strcasestr (arg, "comm") == arg ) flag_bits &= ~GDBR_LOG_COMM; 66 else if (::strcasecmp (arg, "default") == 0 ) flag_bits &= ~GDBR_LOG_DEFAULT; 67 else if (::strcasecmp (arg, "packets") == 0 ) flag_bits &= ~GDBR_LOG_PACKETS; 68 else if (::strcasecmp (arg, "memory") == 0 ) flag_bits &= ~GDBR_LOG_MEMORY; 69 else if (::strcasecmp (arg, "data-short") == 0 ) flag_bits &= ~GDBR_LOG_MEMORY_DATA_SHORT; 70 else if (::strcasecmp (arg, "data-long") == 0 ) flag_bits &= ~GDBR_LOG_MEMORY_DATA_LONG; 71 else if (::strcasecmp (arg, "process") == 0 ) flag_bits &= ~GDBR_LOG_PROCESS; 72 else if (::strcasecmp (arg, "step") == 0 ) flag_bits &= ~GDBR_LOG_STEP; 73 else if (::strcasecmp (arg, "thread") == 0 ) flag_bits &= ~GDBR_LOG_THREAD; 74 else if (::strcasecmp (arg, "verbose") == 0 ) flag_bits &= ~GDBR_LOG_VERBOSE; 75 else if (::strcasestr (arg, "watch") == arg ) flag_bits &= ~GDBR_LOG_WATCHPOINTS; 76 else 77 { 78 feedback_strm->Printf("error: unrecognized log category '%s'\n", arg); 79 ListLogCategories (feedback_strm); 80 } 81 82 } 83 } 84 85 if (flag_bits == 0) 86 GetLog ().reset(); 87 else 88 log->GetMask().Reset (flag_bits); 89 } 90 91 return; 92 } 93 94 LogSP 95 ProcessGDBRemoteLog::EnableLog (StreamSP &log_stream_sp, uint32_t log_options, Args &args, Stream *feedback_strm) 96 { 97 // Try see if there already is a log - that way we can reuse its settings. 98 // We could reuse the log in toto, but we don't know that the stream is the same. 99 uint32_t flag_bits = 0; 100 LogSP log(GetLog ()); 101 if (log) 102 flag_bits = log->GetMask().Get(); 103 104 // Now make a new log with this stream if one was provided 105 if (log_stream_sp) 106 { 107 log = make_shared<Log>(log_stream_sp); 108 GetLog () = log; 109 } 110 111 if (log) 112 { 113 bool got_unknown_category = false; 114 const size_t argc = args.GetArgumentCount(); 115 for (size_t i=0; i<argc; ++i) 116 { 117 const char *arg = args.GetArgumentAtIndex(i); 118 119 if (::strcasecmp (arg, "all") == 0 ) flag_bits |= GDBR_LOG_ALL; 120 else if (::strcasecmp (arg, "async") == 0 ) flag_bits |= GDBR_LOG_ASYNC; 121 else if (::strcasestr (arg, "break") == arg ) flag_bits |= GDBR_LOG_BREAKPOINTS; 122 else if (::strcasestr (arg, "comm") == arg ) flag_bits |= GDBR_LOG_COMM; 123 else if (::strcasecmp (arg, "default") == 0 ) flag_bits |= GDBR_LOG_DEFAULT; 124 else if (::strcasecmp (arg, "packets") == 0 ) flag_bits |= GDBR_LOG_PACKETS; 125 else if (::strcasecmp (arg, "memory") == 0 ) flag_bits |= GDBR_LOG_MEMORY; 126 else if (::strcasecmp (arg, "data-short") == 0 ) flag_bits |= GDBR_LOG_MEMORY_DATA_SHORT; 127 else if (::strcasecmp (arg, "data-long") == 0 ) flag_bits |= GDBR_LOG_MEMORY_DATA_LONG; 128 else if (::strcasecmp (arg, "process") == 0 ) flag_bits |= GDBR_LOG_PROCESS; 129 else if (::strcasecmp (arg, "step") == 0 ) flag_bits |= GDBR_LOG_STEP; 130 else if (::strcasecmp (arg, "thread") == 0 ) flag_bits |= GDBR_LOG_THREAD; 131 else if (::strcasecmp (arg, "verbose") == 0 ) flag_bits |= GDBR_LOG_VERBOSE; 132 else if (::strcasestr (arg, "watch") == arg ) flag_bits |= GDBR_LOG_WATCHPOINTS; 133 else 134 { 135 feedback_strm->Printf("error: unrecognized log category '%s'\n", arg); 136 if (got_unknown_category == false) 137 { 138 got_unknown_category = true; 139 ListLogCategories (feedback_strm); 140 } 141 } 142 } 143 if (flag_bits == 0) 144 flag_bits = GDBR_LOG_DEFAULT; 145 log->GetMask().Reset(flag_bits); 146 log->GetOptions().Reset(log_options); 147 } 148 return log; 149 } 150 151 void 152 ProcessGDBRemoteLog::ListLogCategories (Stream *strm) 153 { 154 strm->Printf("Logging categories for '%s':\n" 155 "\tall - turn on all available logging categories\n" 156 "\tasync - log asynchronous activity\n" 157 "\tbreak - log breakpoints\n" 158 "\tcommunication - log communication activity\n" 159 "\tdefault - enable the default set of logging categories for liblldb\n" 160 "\tpackets - log gdb remote packets\n" 161 "\tmemory - log memory reads and writes\n" 162 "\tdata-short - log memory bytes for memory reads and writes for short transactions only\n" 163 "\tdata-long - log memory bytes for memory reads and writes for all transactions\n" 164 "\tprocess - log process events and activities\n" 165 "\tthread - log thread events and activities\n" 166 "\tstep - log step related activities\n" 167 "\tverbose - enable verbose logging\n" 168 "\twatch - log watchpoint related activities\n", ProcessGDBRemote::GetPluginNameStatic()); 169 } 170 171 172 void 173 ProcessGDBRemoteLog::LogIf (uint32_t mask, const char *format, ...) 174 { 175 LogSP log (ProcessGDBRemoteLog::GetLogIfAllCategoriesSet (mask)); 176 if (log) 177 { 178 va_list args; 179 va_start (args, format); 180 log->VAPrintf (format, args); 181 va_end (args); 182 } 183 } 184