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//===-- ProcessPOSIXLog.cpp ---------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "ProcessPOSIXLog.h"
#include "lldb/Interpreter/Args.h"
#include "lldb/Core/StreamFile.h"
#include "ProcessPOSIX.h"
#include "ProcessPOSIXLog.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 *
ProcessPOSIXLog::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;
}
static uint32_t
GetFlagBits (const char *arg)
{
if (::strcasecmp (arg, "all") == 0 ) return POSIX_LOG_ALL;
else if (::strcasecmp (arg, "async") == 0 ) return POSIX_LOG_ASYNC;
else if (::strncasecmp (arg, "break", 5) == 0 ) return POSIX_LOG_BREAKPOINTS;
else if (::strncasecmp (arg, "comm", 4) == 0 ) return POSIX_LOG_COMM;
else if (::strcasecmp (arg, "default") == 0 ) return POSIX_LOG_DEFAULT;
else if (::strcasecmp (arg, "packets") == 0 ) return POSIX_LOG_PACKETS;
else if (::strcasecmp (arg, "memory") == 0 ) return POSIX_LOG_MEMORY;
else if (::strcasecmp (arg, "data-short") == 0 ) return POSIX_LOG_MEMORY_DATA_SHORT;
else if (::strcasecmp (arg, "data-long") == 0 ) return POSIX_LOG_MEMORY_DATA_LONG;
else if (::strcasecmp (arg, "process") == 0 ) return POSIX_LOG_PROCESS;
else if (::strcasecmp (arg, "ptrace") == 0 ) return POSIX_LOG_PTRACE;
else if (::strcasecmp (arg, "registers") == 0 ) return POSIX_LOG_REGISTERS;
else if (::strcasecmp (arg, "step") == 0 ) return POSIX_LOG_STEP;
else if (::strcasecmp (arg, "thread") == 0 ) return POSIX_LOG_THREAD;
else if (::strcasecmp (arg, "verbose") == 0 ) return POSIX_LOG_VERBOSE;
else if (::strncasecmp (arg, "watch", 5) == 0 ) return POSIX_LOG_WATCHPOINTS;
return 0;
}
void
ProcessPOSIXLog::DisableLog (const char **args, Stream *feedback_strm)
{
Log *log (GetLog ());
if (log)
{
uint32_t flag_bits = 0;
flag_bits = log->GetMask().Get();
for (; args[0]; args++)
{
const char *arg = args[0];
uint32_t bits = GetFlagBits(arg);
if (bits)
{
flag_bits &= ~bits;
}
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 *
ProcessPOSIXLog::EnableLog (StreamSP &log_stream_sp, uint32_t log_options, const char **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 = 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 (; args[0]; args++)
{
const char *arg = args[0];
uint32_t bits = GetFlagBits(arg);
if (bits)
{
flag_bits |= bits;
}
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 = POSIX_LOG_DEFAULT;
g_log->GetMask().Reset(flag_bits);
g_log->GetOptions().Reset(log_options);
g_log_enabled = true;
}
return g_log;
}
void
ProcessPOSIXLog::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"
#ifndef LLDB_CONFIGURATION_BUILDANDINTEGRATION
" ptrace - log all calls to ptrace\n"
#endif
" registers - log register read/writes\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", ProcessPOSIXLog::m_pluginname);
}
void
ProcessPOSIXLog::LogIf (uint32_t mask, const char *format, ...)
{
Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (mask));
if (log)
{
va_list args;
va_start (args, format);
log->VAPrintf (format, args);
va_end (args);
}
}
int ProcessPOSIXLog::m_nestinglevel;
const char *ProcessPOSIXLog::m_pluginname = "";
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