1 //===-- ProcessPOSIXLog.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 "ProcessPOSIXLog.h" 11 12 #include "lldb/Interpreter/Args.h" 13 #include "lldb/Core/StreamFile.h" 14 15 #include "ProcessPOSIX.h" 16 #include "ProcessPOSIXLog.h" 17 18 using namespace lldb; 19 using namespace lldb_private; 20 21 22 // We want to avoid global constructors where code needs to be run so here we 23 // control access to our static g_log_sp by hiding it in a singleton function 24 // that will construct the static g_lob_sp the first time this function is 25 // called. 26 static LogSP & 27 GetLog () 28 { 29 static LogSP g_log_sp; 30 return g_log_sp; 31 } 32 33 LogSP 34 ProcessPOSIXLog::GetLogIfAllCategoriesSet (uint32_t mask) 35 { 36 LogSP log(GetLog ()); 37 if (log && mask) 38 { 39 uint32_t log_mask = log->GetMask().Get(); 40 if ((log_mask & mask) != mask) 41 return LogSP(); 42 } 43 return log; 44 } 45 46 void 47 ProcessPOSIXLog::DisableLog (Args &args, Stream *feedback_strm) 48 { 49 LogSP log (GetLog ()); 50 if (log) 51 { 52 uint32_t flag_bits = 0; 53 54 const size_t argc = args.GetArgumentCount (); 55 if (argc > 0) 56 { 57 flag_bits = log->GetMask().Get(); 58 for (size_t i = 0; i < argc; ++i) 59 { 60 const char *arg = args.GetArgumentAtIndex (i); 61 62 63 if (::strcasecmp (arg, "all") == 0 ) flag_bits &= ~POSIX_LOG_ALL; 64 else if (::strcasecmp (arg, "async") == 0 ) flag_bits &= ~POSIX_LOG_ASYNC; 65 else if (::strncasecmp (arg, "break", 5) == 0 ) flag_bits &= ~POSIX_LOG_BREAKPOINTS; 66 else if (::strncasecmp (arg, "comm", 4) == 0 ) flag_bits &= ~POSIX_LOG_COMM; 67 else if (::strcasecmp (arg, "default") == 0 ) flag_bits &= ~POSIX_LOG_DEFAULT; 68 else if (::strcasecmp (arg, "packets") == 0 ) flag_bits &= ~POSIX_LOG_PACKETS; 69 else if (::strcasecmp (arg, "memory") == 0 ) flag_bits &= ~POSIX_LOG_MEMORY; 70 else if (::strcasecmp (arg, "data-short") == 0 ) flag_bits &= ~POSIX_LOG_MEMORY_DATA_SHORT; 71 else if (::strcasecmp (arg, "data-long") == 0 ) flag_bits &= ~POSIX_LOG_MEMORY_DATA_LONG; 72 else if (::strcasecmp (arg, "process") == 0 ) flag_bits &= ~POSIX_LOG_PROCESS; 73 else if (::strcasecmp (arg, "ptrace") == 0 ) flag_bits &= ~POSIX_LOG_PTRACE; 74 else if (::strcasecmp (arg, "registers") == 0 ) flag_bits &= ~POSIX_LOG_REGISTERS; 75 else if (::strcasecmp (arg, "step") == 0 ) flag_bits &= ~POSIX_LOG_STEP; 76 else if (::strcasecmp (arg, "thread") == 0 ) flag_bits &= ~POSIX_LOG_THREAD; 77 else if (::strcasecmp (arg, "verbose") == 0 ) flag_bits &= ~POSIX_LOG_VERBOSE; 78 else if (::strncasecmp (arg, "watch", 5) == 0 ) flag_bits &= ~POSIX_LOG_WATCHPOINTS; 79 else 80 { 81 feedback_strm->Printf("error: unrecognized log category '%s'\n", arg); 82 ListLogCategories (feedback_strm); 83 } 84 85 } 86 } 87 88 if (flag_bits == 0) 89 GetLog ().reset(); 90 else 91 log->GetMask().Reset (flag_bits); 92 } 93 94 return; 95 } 96 97 LogSP 98 ProcessPOSIXLog::EnableLog (StreamSP &log_stream_sp, uint32_t log_options, Args &args, Stream *feedback_strm) 99 { 100 // Try see if there already is a log - that way we can reuse its settings. 101 // We could reuse the log in toto, but we don't know that the stream is the same. 102 uint32_t flag_bits = 0; 103 LogSP log(GetLog ()); 104 if (log) 105 flag_bits = log->GetMask().Get(); 106 107 // Now make a new log with this stream if one was provided 108 if (log_stream_sp) 109 { 110 log = make_shared<Log>(log_stream_sp); 111 GetLog () = log; 112 } 113 114 if (log) 115 { 116 bool got_unknown_category = false; 117 const size_t argc = args.GetArgumentCount(); 118 for (size_t i=0; i<argc; ++i) 119 { 120 const char *arg = args.GetArgumentAtIndex(i); 121 122 if (::strcasecmp (arg, "all") == 0 ) flag_bits |= POSIX_LOG_ALL; 123 else if (::strcasecmp (arg, "async") == 0 ) flag_bits |= POSIX_LOG_ASYNC; 124 else if (::strncasecmp (arg, "break", 5) == 0 ) flag_bits |= POSIX_LOG_BREAKPOINTS; 125 else if (::strncasecmp (arg, "comm", 4) == 0 ) flag_bits |= POSIX_LOG_COMM; 126 else if (::strcasecmp (arg, "default") == 0 ) flag_bits |= POSIX_LOG_DEFAULT; 127 else if (::strcasecmp (arg, "packets") == 0 ) flag_bits |= POSIX_LOG_PACKETS; 128 else if (::strcasecmp (arg, "memory") == 0 ) flag_bits |= POSIX_LOG_MEMORY; 129 else if (::strcasecmp (arg, "data-short") == 0 ) flag_bits |= POSIX_LOG_MEMORY_DATA_SHORT; 130 else if (::strcasecmp (arg, "data-long") == 0 ) flag_bits |= POSIX_LOG_MEMORY_DATA_LONG; 131 else if (::strcasecmp (arg, "process") == 0 ) flag_bits |= POSIX_LOG_PROCESS; 132 else if (::strcasecmp (arg, "ptrace") == 0 ) flag_bits |= POSIX_LOG_PTRACE; 133 else if (::strcasecmp (arg, "registers") == 0 ) flag_bits |= POSIX_LOG_REGISTERS; 134 else if (::strcasecmp (arg, "step") == 0 ) flag_bits |= POSIX_LOG_STEP; 135 else if (::strcasecmp (arg, "thread") == 0 ) flag_bits |= POSIX_LOG_THREAD; 136 else if (::strcasecmp (arg, "verbose") == 0 ) flag_bits |= POSIX_LOG_VERBOSE; 137 else if (::strncasecmp (arg, "watch", 5) == 0 ) flag_bits |= POSIX_LOG_WATCHPOINTS; 138 else 139 { 140 feedback_strm->Printf("error: unrecognized log category '%s'\n", arg); 141 if (got_unknown_category == false) 142 { 143 got_unknown_category = true; 144 ListLogCategories (feedback_strm); 145 } 146 } 147 } 148 if (flag_bits == 0) 149 flag_bits = POSIX_LOG_DEFAULT; 150 log->GetMask().Reset(flag_bits); 151 log->GetOptions().Reset(log_options); 152 } 153 return log; 154 } 155 156 void 157 ProcessPOSIXLog::ListLogCategories (Stream *strm) 158 { 159 strm->Printf ("Logging categories for '%s':\n" 160 " all - turn on all available logging categories\n" 161 " async - log asynchronous activity\n" 162 " break - log breakpoints\n" 163 " communication - log communication activity\n" 164 " default - enable the default set of logging categories for liblldb\n" 165 " packets - log gdb remote packets\n" 166 " memory - log memory reads and writes\n" 167 " data-short - log memory bytes for memory reads and writes for short transactions only\n" 168 " data-long - log memory bytes for memory reads and writes for all transactions\n" 169 " process - log process events and activities\n" 170 #ifndef LLDB_CONFIGURATION_BUILDANDINTEGRATION 171 " ptrace - log all calls to ptrace\n" 172 #endif 173 " registers - log register read/writes\n" 174 " thread - log thread events and activities\n" 175 " step - log step related activities\n" 176 " verbose - enable verbose logging\n" 177 " watch - log watchpoint related activities\n", ProcessPOSIXLog::m_pluginname); 178 } 179 180 181 void 182 ProcessPOSIXLog::LogIf (uint32_t mask, const char *format, ...) 183 { 184 LogSP log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (mask)); 185 if (log) 186 { 187 va_list args; 188 va_start (args, format); 189 log->VAPrintf (format, args); 190 va_end (args); 191 } 192 } 193 194 int ProcessPOSIXLog::m_nestinglevel; 195 const char *ProcessPOSIXLog::m_pluginname = ""; 196