e1cd1be6d6
due to RTTI worries since llvm and clang don't use RTTI, but I was able to switch back with no issues as far as I can tell. Once the RTTI issue wasn't an issue, we were looking for a way to properly track weak pointers to objects to solve some of the threading issues we have been running into which naturally led us back to std::tr1::weak_ptr. We also wanted the ability to make a shared pointer from just a pointer, which is also easily solved using the std::tr1::enable_shared_from_this class. The main reason for this move back is so we can start properly having weak references to objects. Currently a lldb_private::Thread class has a refrence to its parent lldb_private::Process. This doesn't work well when we now hand out a SBThread object that contains a shared pointer to a lldb_private::Thread as this SBThread can be held onto by external clients and if they end up using one of these objects we can easily crash. So the next task is to start adopting std::tr1::weak_ptr where ever it makes sense which we can do with lldb_private::Debugger, lldb_private::Target, lldb_private::Process, lldb_private::Thread, lldb_private::StackFrame, and many more objects now that they are no longer using intrusive ref counted pointer objects (you can't do std::tr1::weak_ptr functionality with intrusive pointers). llvm-svn: 149207
184 lines
7.2 KiB
C++
184 lines
7.2 KiB
C++
//===-- ProcessGDBRemoteLog.cpp ---------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "ProcessGDBRemoteLog.h"
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#include "lldb/Interpreter/Args.h"
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#include "lldb/Core/StreamFile.h"
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#include "ProcessGDBRemote.h"
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using namespace lldb;
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using namespace lldb_private;
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// We want to avoid global constructors where code needs to be run so here we
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// control access to our static g_log_sp by hiding it in a singleton function
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// that will construct the static g_lob_sp the first time this function is
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// called.
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static LogSP &
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GetLog ()
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{
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static LogSP g_log_sp;
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return g_log_sp;
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}
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LogSP
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ProcessGDBRemoteLog::GetLogIfAllCategoriesSet (uint32_t mask)
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{
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LogSP log(GetLog ());
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if (log && mask)
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{
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uint32_t log_mask = log->GetMask().Get();
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if ((log_mask & mask) != mask)
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return LogSP();
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}
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return log;
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}
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void
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ProcessGDBRemoteLog::DisableLog (Args &args, Stream *feedback_strm)
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{
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LogSP log (GetLog ());
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if (log)
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{
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uint32_t flag_bits = 0;
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const size_t argc = args.GetArgumentCount ();
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if (argc > 0)
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{
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flag_bits = log->GetMask().Get();
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for (size_t i = 0; i < argc; ++i)
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{
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const char *arg = args.GetArgumentAtIndex (i);
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if (::strcasecmp (arg, "all") == 0 ) flag_bits &= ~GDBR_LOG_ALL;
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else if (::strcasecmp (arg, "async") == 0 ) flag_bits &= ~GDBR_LOG_ASYNC;
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else if (::strncasecmp (arg, "break", 5) == 0 ) flag_bits &= ~GDBR_LOG_BREAKPOINTS;
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else if (::strncasecmp (arg, "comm", 4) == 0 ) flag_bits &= ~GDBR_LOG_COMM;
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else if (::strcasecmp (arg, "default") == 0 ) flag_bits &= ~GDBR_LOG_DEFAULT;
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else if (::strcasecmp (arg, "packets") == 0 ) flag_bits &= ~GDBR_LOG_PACKETS;
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else if (::strcasecmp (arg, "memory") == 0 ) flag_bits &= ~GDBR_LOG_MEMORY;
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else if (::strcasecmp (arg, "data-short") == 0 ) flag_bits &= ~GDBR_LOG_MEMORY_DATA_SHORT;
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else if (::strcasecmp (arg, "data-long") == 0 ) flag_bits &= ~GDBR_LOG_MEMORY_DATA_LONG;
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else if (::strcasecmp (arg, "process") == 0 ) flag_bits &= ~GDBR_LOG_PROCESS;
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else if (::strcasecmp (arg, "step") == 0 ) flag_bits &= ~GDBR_LOG_STEP;
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else if (::strcasecmp (arg, "thread") == 0 ) flag_bits &= ~GDBR_LOG_THREAD;
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else if (::strcasecmp (arg, "verbose") == 0 ) flag_bits &= ~GDBR_LOG_VERBOSE;
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else if (::strncasecmp (arg, "watch", 5) == 0 ) flag_bits &= ~GDBR_LOG_WATCHPOINTS;
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else
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{
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feedback_strm->Printf("error: unrecognized log category '%s'\n", arg);
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ListLogCategories (feedback_strm);
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}
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}
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}
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if (flag_bits == 0)
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GetLog ().reset();
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else
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log->GetMask().Reset (flag_bits);
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}
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return;
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}
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LogSP
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ProcessGDBRemoteLog::EnableLog (StreamSP &log_stream_sp, uint32_t log_options, Args &args, Stream *feedback_strm)
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{
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// Try see if there already is a log - that way we can reuse its settings.
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// We could reuse the log in toto, but we don't know that the stream is the same.
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uint32_t flag_bits = 0;
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LogSP log(GetLog ());
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if (log)
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flag_bits = log->GetMask().Get();
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// Now make a new log with this stream if one was provided
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if (log_stream_sp)
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{
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log.reset (new Log(log_stream_sp));
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GetLog () = log;
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}
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if (log)
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{
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bool got_unknown_category = false;
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const size_t argc = args.GetArgumentCount();
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for (size_t i=0; i<argc; ++i)
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{
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const char *arg = args.GetArgumentAtIndex(i);
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if (::strcasecmp (arg, "all") == 0 ) flag_bits |= GDBR_LOG_ALL;
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else if (::strcasecmp (arg, "async") == 0 ) flag_bits |= GDBR_LOG_ASYNC;
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else if (::strncasecmp (arg, "break", 5) == 0 ) flag_bits |= GDBR_LOG_BREAKPOINTS;
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else if (::strncasecmp (arg, "comm", 4) == 0 ) flag_bits |= GDBR_LOG_COMM;
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else if (::strcasecmp (arg, "default") == 0 ) flag_bits |= GDBR_LOG_DEFAULT;
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else if (::strcasecmp (arg, "packets") == 0 ) flag_bits |= GDBR_LOG_PACKETS;
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else if (::strcasecmp (arg, "memory") == 0 ) flag_bits |= GDBR_LOG_MEMORY;
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else if (::strcasecmp (arg, "data-short") == 0 ) flag_bits |= GDBR_LOG_MEMORY_DATA_SHORT;
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else if (::strcasecmp (arg, "data-long") == 0 ) flag_bits |= GDBR_LOG_MEMORY_DATA_LONG;
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else if (::strcasecmp (arg, "process") == 0 ) flag_bits |= GDBR_LOG_PROCESS;
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else if (::strcasecmp (arg, "step") == 0 ) flag_bits |= GDBR_LOG_STEP;
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else if (::strcasecmp (arg, "thread") == 0 ) flag_bits |= GDBR_LOG_THREAD;
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else if (::strcasecmp (arg, "verbose") == 0 ) flag_bits |= GDBR_LOG_VERBOSE;
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else if (::strncasecmp (arg, "watch", 5) == 0 ) flag_bits |= GDBR_LOG_WATCHPOINTS;
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else
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{
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feedback_strm->Printf("error: unrecognized log category '%s'\n", arg);
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if (got_unknown_category == false)
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{
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got_unknown_category = true;
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ListLogCategories (feedback_strm);
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}
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}
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}
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if (flag_bits == 0)
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flag_bits = GDBR_LOG_DEFAULT;
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log->GetMask().Reset(flag_bits);
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log->GetOptions().Reset(log_options);
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}
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return log;
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}
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void
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ProcessGDBRemoteLog::ListLogCategories (Stream *strm)
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{
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strm->Printf ("Logging categories for '%s':\n"
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" all - turn on all available logging categories\n"
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" async - log asynchronous activity\n"
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" break - log breakpoints\n"
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" communication - log communication activity\n"
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" default - enable the default set of logging categories for liblldb\n"
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" packets - log gdb remote packets\n"
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" memory - log memory reads and writes\n"
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" data-short - log memory bytes for memory reads and writes for short transactions only\n"
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" data-long - log memory bytes for memory reads and writes for all transactions\n"
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" process - log process events and activities\n"
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" thread - log thread events and activities\n"
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" step - log step related activities\n"
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" verbose - enable verbose logging\n"
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" watch - log watchpoint related activities\n", ProcessGDBRemote::GetPluginNameStatic());
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}
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void
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ProcessGDBRemoteLog::LogIf (uint32_t mask, const char *format, ...)
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{
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LogSP log (ProcessGDBRemoteLog::GetLogIfAllCategoriesSet (mask));
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if (log)
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{
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va_list args;
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va_start (args, format);
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log->VAPrintf (format, args);
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va_end (args);
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}
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}
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