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//===-- ProcessKDPLog.cpp ---------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "ProcessKDPLog.h"
#include "lldb/Interpreter/Args.h"
#include "lldb/Core/StreamFile.h"
#include "ProcessKDP.h"
using namespace lldb;
using namespace lldb_private;
// We want to avoid global constructors where code needs to be run so here we
// control access to our static g_log_sp by hiding it in a singleton function
// that will construct the static g_log_sp the first time this function is
// called.
static bool g_log_enabled = false;
static Log * g_log = NULL;
static Log *
GetLog ()
{
if (!g_log_enabled)
return NULL;
return g_log;
}
Log *
ProcessKDPLog::GetLogIfAllCategoriesSet (uint32_t mask)
{
Log *log(GetLog ());
if (log && mask)
{
uint32_t log_mask = log->GetMask().Get();
if ((log_mask & mask) != mask)
return NULL;
}
return log;
}
void
ProcessKDPLog::DisableLog (const char **categories, Stream *feedback_strm)
{
Log *log (GetLog ());
if (log)
{
uint32_t flag_bits = 0;
if (categories[0] != NULL)
{
flag_bits = log->GetMask().Get();
for (size_t i = 0; categories[i] != NULL; ++i)
{
const char *arg = categories[i];
if (::strcasecmp (arg, "all") == 0 ) flag_bits &= ~KDP_LOG_ALL;
else if (::strcasecmp (arg, "async") == 0 ) flag_bits &= ~KDP_LOG_ASYNC;
else if (::strncasecmp (arg, "break", 5) == 0 ) flag_bits &= ~KDP_LOG_BREAKPOINTS;
else if (::strncasecmp (arg, "comm", 4) == 0 ) flag_bits &= ~KDP_LOG_COMM;
else if (::strcasecmp (arg, "default") == 0 ) flag_bits &= ~KDP_LOG_DEFAULT;
else if (::strcasecmp (arg, "packets") == 0 ) flag_bits &= ~KDP_LOG_PACKETS;
else if (::strcasecmp (arg, "memory") == 0 ) flag_bits &= ~KDP_LOG_MEMORY;
else if (::strcasecmp (arg, "data-short") == 0 ) flag_bits &= ~KDP_LOG_MEMORY_DATA_SHORT;
else if (::strcasecmp (arg, "data-long") == 0 ) flag_bits &= ~KDP_LOG_MEMORY_DATA_LONG;
else if (::strcasecmp (arg, "process") == 0 ) flag_bits &= ~KDP_LOG_PROCESS;
else if (::strcasecmp (arg, "step") == 0 ) flag_bits &= ~KDP_LOG_STEP;
else if (::strcasecmp (arg, "thread") == 0 ) flag_bits &= ~KDP_LOG_THREAD;
else if (::strcasecmp (arg, "verbose") == 0 ) flag_bits &= ~KDP_LOG_VERBOSE;
else if (::strncasecmp (arg, "watch", 5) == 0 ) flag_bits &= ~KDP_LOG_WATCHPOINTS;
else
{
feedback_strm->Printf("error: unrecognized log category '%s'\n", arg);
ListLogCategories (feedback_strm);
}
}
}
log->GetMask().Reset (flag_bits);
if (flag_bits == 0)
g_log_enabled = false;
}
return;
}
Log *
ProcessKDPLog::EnableLog (StreamSP &log_stream_sp, uint32_t log_options, const char **categories, 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 = 0;
if (g_log)
flag_bits = g_log->GetMask().Get();
// Now make a new log with this stream if one was provided
if (log_stream_sp)
{
if (g_log)
g_log->SetStream(log_stream_sp);
else
g_log = new Log(log_stream_sp);
}
if (g_log)
{
bool got_unknown_category = false;
for (size_t i=0; categories[i] != NULL; ++i)
{
const char *arg = categories[i];
if (::strcasecmp (arg, "all") == 0 ) flag_bits |= KDP_LOG_ALL;
else if (::strcasecmp (arg, "async") == 0 ) flag_bits |= KDP_LOG_ASYNC;
else if (::strncasecmp (arg, "break", 5) == 0 ) flag_bits |= KDP_LOG_BREAKPOINTS;
else if (::strncasecmp (arg, "comm", 4) == 0 ) flag_bits |= KDP_LOG_COMM;
else if (::strcasecmp (arg, "default") == 0 ) flag_bits |= KDP_LOG_DEFAULT;
else if (::strcasecmp (arg, "packets") == 0 ) flag_bits |= KDP_LOG_PACKETS;
else if (::strcasecmp (arg, "memory") == 0 ) flag_bits |= KDP_LOG_MEMORY;
else if (::strcasecmp (arg, "data-short") == 0 ) flag_bits |= KDP_LOG_MEMORY_DATA_SHORT;
else if (::strcasecmp (arg, "data-long") == 0 ) flag_bits |= KDP_LOG_MEMORY_DATA_LONG;
else if (::strcasecmp (arg, "process") == 0 ) flag_bits |= KDP_LOG_PROCESS;
else if (::strcasecmp (arg, "step") == 0 ) flag_bits |= KDP_LOG_STEP;
else if (::strcasecmp (arg, "thread") == 0 ) flag_bits |= KDP_LOG_THREAD;
else if (::strcasecmp (arg, "verbose") == 0 ) flag_bits |= KDP_LOG_VERBOSE;
else if (::strncasecmp (arg, "watch", 5) == 0 ) flag_bits |= KDP_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 = KDP_LOG_DEFAULT;
g_log->GetMask().Reset(flag_bits);
g_log->GetOptions().Reset(log_options);
}
g_log_enabled = true;
return g_log;
}
void
ProcessKDPLog::ListLogCategories (Stream *strm)
{
strm->Printf ("Logging categories for '%s':\n"
" all - turn on all available logging categories\n"
" async - log asynchronous activity\n"
" break - log breakpoints\n"
" communication - log communication activity\n"
" default - enable the default set of logging categories for liblldb\n"
" packets - log gdb remote packets\n"
" memory - log memory reads and writes\n"
" data-short - log memory bytes for memory reads and writes for short transactions only\n"
" data-long - log memory bytes for memory reads and writes for all transactions\n"
" process - log process events and activities\n"
" thread - log thread events and activities\n"
" step - log step related activities\n"
" verbose - enable verbose logging\n"
" watch - log watchpoint related activities\n",
ProcessKDP::GetPluginNameStatic().GetCString());
}
void
ProcessKDPLog::LogIf (uint32_t mask, const char *format, ...)
{
Log *log (ProcessKDPLog::GetLogIfAllCategoriesSet (mask));
if (log)
{
va_list args;
va_start (args, format);
log->VAPrintf (format, args);
va_end (args);
}
}
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