Initial checkin of lldb code from internal Apple repo.
git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@105619 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/lldb-log.cpp b/source/lldb-log.cpp
new file mode 100644
index 0000000..118a5b3
--- /dev/null
+++ b/source/lldb-log.cpp
@@ -0,0 +1,190 @@
+//===-- lldb-log.cpp --------------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/lldb-private-log.h"
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "lldb/Core/Args.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/StreamFile.h"
+
+
+using namespace lldb;
+using namespace lldb_private;
+
+
+static Log *
+LogAccessor (bool get, StreamSP *stream_sp_ptr)
+{
+ static Log* g_log = NULL; // Leak for now as auto_ptr was being cleaned up
+ // by global constructors before other threads
+ // were done with it.
+ if (!get)
+ {
+ if (g_log)
+ delete g_log;
+ if (stream_sp_ptr)
+ g_log = new Log (*stream_sp_ptr);
+ else
+ g_log = NULL;
+ }
+
+ return g_log;
+
+}
+
+uint32_t
+lldb_private::GetLogMask ()
+{
+ Log *log = LogAccessor (true, NULL);
+ if (log)
+ return log->GetMask().GetAllFlagBits();
+ return 0;
+}
+
+bool
+lldb_private::IsLogVerbose ()
+{
+ uint32_t mask = GetLogMask();
+ return (mask & LIBLLDB_LOG_VERBOSE);
+}
+
+Log *
+lldb_private::GetLogIfAllCategoriesSet (uint32_t mask)
+{
+ Log *log = LogAccessor (true, NULL);
+ if (log && mask)
+ {
+ uint32_t log_mask = log->GetMask().GetAllFlagBits();
+ if ((log_mask & mask) != mask)
+ return NULL;
+ }
+ return log;
+}
+
+void
+lldb_private::LogIfAllCategoriesSet (uint32_t mask, const char *format, ...)
+{
+ Log *log = GetLogIfAllCategoriesSet (mask);
+ if (log)
+ {
+ va_list args;
+ va_start (args, format);
+ log->VAPrintf (format, args);
+ va_end (args);
+ }
+}
+
+void
+lldb_private::LogIfAnyCategoriesSet (uint32_t mask, const char *format, ...)
+{
+ Log *log = GetLogIfAnyCategoriesSet (mask);
+ if (log)
+ {
+ va_list args;
+ va_start (args, format);
+ log->VAPrintf (format, args);
+ va_end (args);
+ }
+}
+
+Log *
+lldb_private::GetLogIfAnyCategoriesSet (uint32_t mask)
+{
+ Log *log = LogAccessor (true, NULL);
+ if (log && mask && (mask & log->GetMask().GetAllFlagBits()))
+ return log;
+ return NULL;
+}
+
+void
+lldb_private::DisableLog ()
+{
+ LogAccessor (false, NULL);
+}
+
+
+Log *
+lldb_private::EnableLog (StreamSP &log_stream_sp, uint32_t log_options, Args &args, Stream *feedback_strm)
+{
+ // Try see if there already is a log - that way we can reuse its settings.
+ // We could reuse the log in toto, but we don't know that the stream is the same.
+ uint32_t flag_bits;
+ Log* log = LogAccessor (true, NULL);
+ if (log)
+ flag_bits = log->GetMask().GetAllFlagBits();
+ else
+ flag_bits = 0;
+
+ // Now make a new log with this stream.
+ log = LogAccessor (false, &log_stream_sp);
+ if (log)
+ {
+ bool got_unknown_category = false;
+ const size_t argc = args.GetArgumentCount();
+ for (size_t i=0; i<argc; ++i)
+ {
+ const char *arg = args.GetArgumentAtIndex(i);
+
+ if (strcasecmp(arg, "all") == 0 ) flag_bits |= LIBLLDB_LOG_ALL;
+ else if (strcasestr(arg, "break") == arg) flag_bits |= LIBLLDB_LOG_BREAKPOINTS;
+ else if (strcasecmp(arg, "default") == 0 ) flag_bits |= LIBLLDB_LOG_DEFAULT;
+ else if (strcasestr(arg, "event") == arg) flag_bits |= LIBLLDB_LOG_EVENTS;
+ else if (strcasestr(arg, "expr") == arg) flag_bits |= LIBLLDB_LOG_EXPRESSIONS;
+ else if (strcasestr(arg, "object") == arg) flag_bits |= LIBLLDB_LOG_OBJECT;
+ else if (strcasecmp(arg, "process") == 0 ) flag_bits |= LIBLLDB_LOG_PROCESS;
+ else if (strcasecmp(arg, "shlib") == 0 ) flag_bits |= LIBLLDB_LOG_SHLIB;
+ else if (strcasecmp(arg, "state") == 0 ) flag_bits |= LIBLLDB_LOG_STATE;
+ else if (strcasecmp(arg, "step") == 0 ) flag_bits |= LIBLLDB_LOG_STEP;
+ else if (strcasecmp(arg, "thread") == 0 ) flag_bits |= LIBLLDB_LOG_THREAD;
+ else if (strcasecmp(arg, "verbose") == 0 ) flag_bits |= LIBLLDB_LOG_VERBOSE;
+ else if (strcasestr(arg, "watch") == arg) flag_bits |= LIBLLDB_LOG_WATCHPOINTS;
+ else if (strcasestr(arg, "temp") == arg) flag_bits |= LIBLLDB_LOG_TEMPORARY;
+ else if (strcasestr(arg, "comm") == arg) flag_bits |= LIBLLDB_LOG_COMMUNICATION;
+ else if (strcasestr(arg, "conn") == arg) flag_bits |= LIBLLDB_LOG_CONNECTION;
+ else
+ {
+ feedback_strm->Printf("error: unrecognized log category '%s'\n", arg);
+ if (got_unknown_category == false)
+ {
+ got_unknown_category = true;
+ ListLogCategories (feedback_strm);
+ return log;
+ }
+ }
+ }
+
+ log->GetMask().SetAllFlagBits(flag_bits);
+ log->GetOptions().SetAllFlagBits(log_options);
+ }
+ return log;
+}
+
+
+void
+lldb_private::ListLogCategories (Stream *strm)
+{
+ strm->Printf("Logging categories for 'lldb':\n"
+ "\tall - turn on all available logging categories\n"
+ "\tdefault - enable the default set of logging categories for liblldb\n"
+ "\tbreak - log breakpoints\n"
+ "\tevents - log broadcaster, listener and event queue activities\n"
+ "\texpr - log expressions\n"
+ "\tobject - log object construction/destruction for important objects\n"
+ "\tprocess - log process events and activities\n"
+ "\tthread - log thread events and activities\n"
+ "\tshlib - log shared library related activities\n"
+ "\tstate - log private and public process state changes\n"
+ "\tstep - log step related activities\n"
+ "\tverbose - enable verbose loggging\n"
+ "\twatch - log watchpoint related activities\n");
+}