From 30fdc8d841c9d24ac5f3d452b6ece84ee0ac991c Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 8 Jun 2010 16:52:24 +0000
Subject: Initial checkin of lldb code from internal Apple repo.

llvm-svn: 105619
---
 .../Process/gdb-remote/ProcessGDBRemoteLog.cpp     | 121 +++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemoteLog.cpp

(limited to 'lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemoteLog.cpp')

diff --git a/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemoteLog.cpp b/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemoteLog.cpp
new file mode 100644
index 0000000..051ce8f
--- /dev/null
+++ b/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemoteLog.cpp
@@ -0,0 +1,121 @@
+//===-- ProcessGDBRemoteLog.cpp ---------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ProcessGDBRemoteLog.h"
+
+#include "lldb/Core/Args.h"
+#include "lldb/Core/StreamFile.h"
+
+#include "ProcessGDBRemote.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+
+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.
+Log *
+ProcessGDBRemoteLog::GetLogIfAllCategoriesSet (uint32_t mask)
+{
+    Log *log = g_log;
+    if (log && mask)
+    {
+        uint32_t log_mask = log->GetMask().GetAllFlagBits();
+        if ((log_mask & mask) != mask)
+            return NULL;
+    }
+    return log;
+}
+
+void
+ProcessGDBRemoteLog::DisableLog ()
+{
+    if (g_log)
+    {
+        delete g_log;
+        g_log = NULL;
+    }
+}
+
+Log *
+ProcessGDBRemoteLog::EnableLog (StreamSP &log_stream_sp, uint32_t log_options, Args &args, Stream *feedback_strm)
+{
+    DisableLog ();
+    g_log = new Log (log_stream_sp);
+    if (g_log)
+    {
+        uint32_t flag_bits = 0;
+        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 |= GDBR_LOG_ALL;
+            else if (::strcasestr (arg, "break")      == arg ) flag_bits |= GDBR_LOG_BREAKPOINTS;
+            else if (::strcasecmp (arg, "default")    == 0   ) flag_bits |= GDBR_LOG_DEFAULT;
+            else if (::strcasecmp (arg, "packets")    == 0   ) flag_bits |= GDBR_LOG_PACKETS;
+            else if (::strcasecmp (arg, "memory")     == 0   ) flag_bits |= GDBR_LOG_MEMORY;
+            else if (::strcasecmp (arg, "data-short") == 0   ) flag_bits |= GDBR_LOG_MEMORY_DATA_SHORT;
+            else if (::strcasecmp (arg, "data-long")  == 0   ) flag_bits |= GDBR_LOG_MEMORY_DATA_LONG;
+            else if (::strcasecmp (arg, "process")    == 0   ) flag_bits |= GDBR_LOG_PROCESS;
+            else if (::strcasecmp (arg, "step")       == 0   ) flag_bits |= GDBR_LOG_STEP;
+            else if (::strcasecmp (arg, "thread")     == 0   ) flag_bits |= GDBR_LOG_THREAD;
+            else if (::strcasecmp (arg, "verbose")    == 0   ) flag_bits |= GDBR_LOG_VERBOSE;
+            else if (::strcasestr (arg, "watch")      == arg ) flag_bits |= GDBR_LOG_WATCHPOINTS;
+            else
+            {
+                feedback_strm->Printf("error: unrecognized log category '%s'\n", arg);
+                if (got_unknown_category == false)
+                {
+                    got_unknown_category = true;
+                    ListLogCategories (feedback_strm);
+                }
+            }
+        }
+        if (flag_bits == 0)
+            flag_bits = GDBR_LOG_DEFAULT;
+        g_log->GetMask().SetAllFlagBits(flag_bits);
+        g_log->GetOptions().SetAllFlagBits(log_options);
+    }
+    return g_log;
+}
+
+void
+ProcessGDBRemoteLog::ListLogCategories (Stream *strm)
+{
+    strm->Printf("Logging categories for '%s':\n"
+        "\tall - turn on all available logging categories\n"
+        "\tbreak - log breakpoints\n"
+        "\tdefault - enable the default set of logging categories for liblldb\n"
+        "\tpackets - log gdb remote packets\n"
+        "\tmemory - log memory reads and writes\n"
+        "\tdata-short - log memory bytes for memory reads and writes for short transactions only\n"
+        "\tdata-long - log memory bytes for memory reads and writes for all transactions\n"
+        "\tprocess - log process events and activities\n"
+        "\tthread - log thread events and activities\n"
+        "\tstep - log step related activities\n"
+        "\tverbose - enable verbose loggging\n"
+        "\twatch - log watchpoint related activities\n", ProcessGDBRemote::GetPluginNameStatic());
+}
+
+
+void
+ProcessGDBRemoteLog::LogIf (uint32_t mask, const char *format, ...)
+{
+    Log *log = ProcessGDBRemoteLog::GetLogIfAllCategoriesSet (mask);
+    if (log)
+    {
+        va_list args;
+        va_start (args, format);
+        log->VAPrintf (format, args);
+        va_end (args);
+    }
+}
-- 
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