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 (const char **args, Stream *feedback_strm) 48 { 49 LogSP log (GetLog ()); 50 if (log) 51 { 52 uint32_t flag_bits = 0; 53 54 flag_bits = log->GetMask().Get(); 55 for (; args[0]; args++) 56 { 57 const char *arg = args[0]; 58 59 if (::strcasecmp (arg, "all") == 0 ) flag_bits &= ~POSIX_LOG_ALL; 60 else if (::strcasecmp (arg, "async") == 0 ) flag_bits &= ~POSIX_LOG_ASYNC; 61 else if (::strncasecmp (arg, "break", 5) == 0 ) flag_bits &= ~POSIX_LOG_BREAKPOINTS; 62 else if (::strncasecmp (arg, "comm", 4) == 0 ) flag_bits &= ~POSIX_LOG_COMM; 63 else if (::strcasecmp (arg, "default") == 0 ) flag_bits &= ~POSIX_LOG_DEFAULT; 64 else if (::strcasecmp (arg, "packets") == 0 ) flag_bits &= ~POSIX_LOG_PACKETS; 65 else if (::strcasecmp (arg, "memory") == 0 ) flag_bits &= ~POSIX_LOG_MEMORY; 66 else if (::strcasecmp (arg, "data-short") == 0 ) flag_bits &= ~POSIX_LOG_MEMORY_DATA_SHORT; 67 else if (::strcasecmp (arg, "data-long") == 0 ) flag_bits &= ~POSIX_LOG_MEMORY_DATA_LONG; 68 else if (::strcasecmp (arg, "process") == 0 ) flag_bits &= ~POSIX_LOG_PROCESS; 69 else if (::strcasecmp (arg, "ptrace") == 0 ) flag_bits &= ~POSIX_LOG_PTRACE; 70 else if (::strcasecmp (arg, "registers") == 0 ) flag_bits &= ~POSIX_LOG_REGISTERS; 71 else if (::strcasecmp (arg, "step") == 0 ) flag_bits &= ~POSIX_LOG_STEP; 72 else if (::strcasecmp (arg, "thread") == 0 ) flag_bits &= ~POSIX_LOG_THREAD; 73 else if (::strcasecmp (arg, "verbose") == 0 ) flag_bits &= ~POSIX_LOG_VERBOSE; 74 else if (::strncasecmp (arg, "watch", 5) == 0 ) flag_bits &= ~POSIX_LOG_WATCHPOINTS; 75 else 76 { 77 feedback_strm->Printf("error: unrecognized log category '%s'\n", arg); 78 ListLogCategories (feedback_strm); 79 } 80 } 81 82 if (flag_bits == 0) 83 GetLog ().reset(); 84 else 85 log->GetMask().Reset (flag_bits); 86 } 87 88 return; 89 } 90 91 LogSP 92 ProcessPOSIXLog::EnableLog (StreamSP &log_stream_sp, uint32_t log_options, const char **args, Stream *feedback_strm) 93 { 94 // Try see if there already is a log - that way we can reuse its settings. 95 // We could reuse the log in toto, but we don't know that the stream is the same. 96 uint32_t flag_bits = 0; 97 LogSP log(GetLog ()); 98 if (log) 99 flag_bits = log->GetMask().Get(); 100 101 // Now make a new log with this stream if one was provided 102 if (log_stream_sp) 103 { 104 log = LogSP(new Log(log_stream_sp)); 105 GetLog () = log; 106 } 107 108 if (log) 109 { 110 bool got_unknown_category = false; 111 for (; args[0]; args++) 112 { 113 const char *arg = args[0]; 114 115 if (::strcasecmp (arg, "all") == 0 ) flag_bits |= POSIX_LOG_ALL; 116 else if (::strcasecmp (arg, "async") == 0 ) flag_bits |= POSIX_LOG_ASYNC; 117 else if (::strncasecmp (arg, "break", 5) == 0 ) flag_bits |= POSIX_LOG_BREAKPOINTS; 118 else if (::strncasecmp (arg, "comm", 4) == 0 ) flag_bits |= POSIX_LOG_COMM; 119 else if (::strcasecmp (arg, "default") == 0 ) flag_bits |= POSIX_LOG_DEFAULT; 120 else if (::strcasecmp (arg, "packets") == 0 ) flag_bits |= POSIX_LOG_PACKETS; 121 else if (::strcasecmp (arg, "memory") == 0 ) flag_bits |= POSIX_LOG_MEMORY; 122 else if (::strcasecmp (arg, "data-short") == 0 ) flag_bits |= POSIX_LOG_MEMORY_DATA_SHORT; 123 else if (::strcasecmp (arg, "data-long") == 0 ) flag_bits |= POSIX_LOG_MEMORY_DATA_LONG; 124 else if (::strcasecmp (arg, "process") == 0 ) flag_bits |= POSIX_LOG_PROCESS; 125 else if (::strcasecmp (arg, "ptrace") == 0 ) flag_bits |= POSIX_LOG_PTRACE; 126 else if (::strcasecmp (arg, "registers") == 0 ) flag_bits |= POSIX_LOG_REGISTERS; 127 else if (::strcasecmp (arg, "step") == 0 ) flag_bits |= POSIX_LOG_STEP; 128 else if (::strcasecmp (arg, "thread") == 0 ) flag_bits |= POSIX_LOG_THREAD; 129 else if (::strcasecmp (arg, "verbose") == 0 ) flag_bits |= POSIX_LOG_VERBOSE; 130 else if (::strncasecmp (arg, "watch", 5) == 0 ) flag_bits |= POSIX_LOG_WATCHPOINTS; 131 else 132 { 133 feedback_strm->Printf("error: unrecognized log category '%s'\n", arg); 134 if (got_unknown_category == false) 135 { 136 got_unknown_category = true; 137 ListLogCategories (feedback_strm); 138 } 139 } 140 } 141 if (flag_bits == 0) 142 flag_bits = POSIX_LOG_DEFAULT; 143 log->GetMask().Reset(flag_bits); 144 log->GetOptions().Reset(log_options); 145 } 146 return log; 147 } 148 149 void 150 ProcessPOSIXLog::ListLogCategories (Stream *strm) 151 { 152 strm->Printf ("Logging categories for '%s':\n" 153 " all - turn on all available logging categories\n" 154 " async - log asynchronous activity\n" 155 " break - log breakpoints\n" 156 " communication - log communication activity\n" 157 " default - enable the default set of logging categories for liblldb\n" 158 " packets - log gdb remote packets\n" 159 " memory - log memory reads and writes\n" 160 " data-short - log memory bytes for memory reads and writes for short transactions only\n" 161 " data-long - log memory bytes for memory reads and writes for all transactions\n" 162 " process - log process events and activities\n" 163 #ifndef LLDB_CONFIGURATION_BUILDANDINTEGRATION 164 " ptrace - log all calls to ptrace\n" 165 #endif 166 " registers - log register read/writes\n" 167 " thread - log thread events and activities\n" 168 " step - log step related activities\n" 169 " verbose - enable verbose logging\n" 170 " watch - log watchpoint related activities\n", ProcessPOSIXLog::m_pluginname); 171 } 172 173 174 void 175 ProcessPOSIXLog::LogIf (uint32_t mask, const char *format, ...) 176 { 177 LogSP log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (mask)); 178 if (log) 179 { 180 va_list args; 181 va_start (args, format); 182 log->VAPrintf (format, args); 183 va_end (args); 184 } 185 } 186 187 int ProcessPOSIXLog::m_nestinglevel; 188 const char *ProcessPOSIXLog::m_pluginname = ""; 189