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llvm-project/lldb/source/lldb-log.cpp

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//===-- 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/Interpreter/Args.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/StreamFile.h"
#include <string.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_lob_sp the first time this function is
// called.
static LogSP &
GetLog ()
{
static LogSP g_log_sp;
return g_log_sp;
}
uint32_t
lldb_private::GetLogMask ()
{
LogSP log(GetLog ());
if (log)
return log->GetMask().Get();
return 0;
}
bool
lldb_private::IsLogVerbose ()
{
uint32_t mask = GetLogMask();
return (mask & LIBLLDB_LOG_VERBOSE);
}
LogSP
lldb_private::GetLogIfAllCategoriesSet (uint32_t mask)
{
LogSP log(GetLog ());
if (log && mask)
{
uint32_t log_mask = log->GetMask().Get();
if ((log_mask & mask) != mask)
return LogSP();
}
return log;
}
void
lldb_private::LogIfAllCategoriesSet (uint32_t mask, const char *format, ...)
{
LogSP 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, ...)
{
LogSP log(GetLogIfAnyCategoriesSet (mask));
if (log)
{
va_list args;
va_start (args, format);
log->VAPrintf (format, args);
va_end (args);
}
}
LogSP
lldb_private::GetLogIfAnyCategoriesSet (uint32_t mask)
{
LogSP log(GetLog ());
if (log && mask && (mask & log->GetMask().Get()))
return log;
return LogSP();
}
void
lldb_private::DisableLog (Args &args, Stream *feedback_strm)
{
LogSP log(GetLog ());
if (log)
{
uint32_t flag_bits = 0;
const size_t argc = args.GetArgumentCount ();
if (argc > 0)
{
flag_bits = log->GetMask().Get();
for (size_t i = 0; i < argc; ++i)
{
const char *arg = args.GetArgumentAtIndex (i);
if (0 == ::strcasecmp(arg, "all")) flag_bits &= ~LIBLLDB_LOG_ALL;
else if (0 == ::strcasecmp(arg, "api")) flag_bits &= ~LIBLLDB_LOG_API;
else if (0 == ::strncasecmp(arg, "break", 5)) flag_bits &= ~LIBLLDB_LOG_BREAKPOINTS;
else if (0 == ::strcasecmp(arg, "commands")) flag_bits &= ~LIBLLDB_LOG_COMMANDS;
else if (0 == ::strcasecmp(arg, "default")) flag_bits &= ~LIBLLDB_LOG_DEFAULT;
else if (0 == ::strcasecmp(arg, "dyld")) flag_bits &= ~LIBLLDB_LOG_DYNAMIC_LOADER;
else if (0 == ::strncasecmp(arg, "event", 5)) flag_bits &= ~LIBLLDB_LOG_EVENTS;
else if (0 == ::strncasecmp(arg, "expr", 4)) flag_bits &= ~LIBLLDB_LOG_EXPRESSIONS;
else if (0 == ::strncasecmp(arg, "object", 6)) flag_bits &= ~LIBLLDB_LOG_OBJECT;
else if (0 == ::strcasecmp(arg, "process")) flag_bits &= ~LIBLLDB_LOG_PROCESS;
else if (0 == ::strcasecmp(arg, "script")) flag_bits &= ~LIBLLDB_LOG_SCRIPT;
else if (0 == ::strcasecmp(arg, "state")) flag_bits &= ~LIBLLDB_LOG_STATE;
else if (0 == ::strcasecmp(arg, "step")) flag_bits &= ~LIBLLDB_LOG_STEP;
else if (0 == ::strcasecmp(arg, "thread")) flag_bits &= ~LIBLLDB_LOG_THREAD;
else if (0 == ::strcasecmp(arg, "verbose")) flag_bits &= ~LIBLLDB_LOG_VERBOSE;
else if (0 == ::strncasecmp(arg, "watch", 5)) flag_bits &= ~LIBLLDB_LOG_WATCHPOINTS;
else if (0 == ::strncasecmp(arg, "temp", 4)) flag_bits &= ~LIBLLDB_LOG_TEMPORARY;
else if (0 == ::strncasecmp(arg, "comm", 4)) flag_bits &= ~LIBLLDB_LOG_COMMUNICATION;
else if (0 == ::strncasecmp(arg, "conn", 4)) flag_bits &= ~LIBLLDB_LOG_CONNECTION;
else if (0 == ::strncasecmp(arg, "host", 4)) flag_bits &= ~LIBLLDB_LOG_HOST;
else if (0 == ::strncasecmp(arg, "unwind", 6)) flag_bits &= ~LIBLLDB_LOG_UNWIND;
else
{
feedback_strm->Printf ("error: unrecognized log category '%s'\n", arg);
ListLogCategories (feedback_strm);
return;
}
}
}
if (flag_bits == 0)
GetLog ().reset();
else
log->GetMask().Reset (flag_bits);
}
return;
}
LogSP
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;
LogSP log(GetLog ());
if (log)
flag_bits = log->GetMask().Get();
else
flag_bits = 0;
// Now make a new log with this stream if one was provided
if (log_stream_sp)
{
log = make_shared<Log>(log_stream_sp);
GetLog () = log;
}
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 (0 == ::strcasecmp(arg, "all")) flag_bits |= LIBLLDB_LOG_ALL;
else if (0 == ::strcasecmp(arg, "api")) flag_bits |= LIBLLDB_LOG_API;
else if (0 == ::strncasecmp(arg, "break", 5)) flag_bits |= LIBLLDB_LOG_BREAKPOINTS;
else if (0 == ::strcasecmp(arg, "commands")) flag_bits |= LIBLLDB_LOG_COMMANDS;
else if (0 == ::strcasecmp(arg, "default")) flag_bits |= LIBLLDB_LOG_DEFAULT;
else if (0 == ::strcasecmp(arg, "dyld")) flag_bits |= LIBLLDB_LOG_DYNAMIC_LOADER;
else if (0 == ::strncasecmp(arg, "event", 5)) flag_bits |= LIBLLDB_LOG_EVENTS;
else if (0 == ::strncasecmp(arg, "expr", 4)) flag_bits |= LIBLLDB_LOG_EXPRESSIONS;
else if (0 == ::strncasecmp(arg, "object", 6)) flag_bits |= LIBLLDB_LOG_OBJECT;
else if (0 == ::strcasecmp(arg, "process")) flag_bits |= LIBLLDB_LOG_PROCESS;
else if (0 == ::strcasecmp(arg, "script")) flag_bits |= LIBLLDB_LOG_SCRIPT;
else if (0 == ::strcasecmp(arg, "state")) flag_bits |= LIBLLDB_LOG_STATE;
else if (0 == ::strcasecmp(arg, "step")) flag_bits |= LIBLLDB_LOG_STEP;
else if (0 == ::strcasecmp(arg, "thread")) flag_bits |= LIBLLDB_LOG_THREAD;
else if (0 == ::strcasecmp(arg, "verbose")) flag_bits |= LIBLLDB_LOG_VERBOSE;
else if (0 == ::strncasecmp(arg, "watch", 5)) flag_bits |= LIBLLDB_LOG_WATCHPOINTS;
else if (0 == ::strncasecmp(arg, "temp", 4)) flag_bits |= LIBLLDB_LOG_TEMPORARY;
else if (0 == ::strncasecmp(arg, "comm", 4)) flag_bits |= LIBLLDB_LOG_COMMUNICATION;
else if (0 == ::strncasecmp(arg, "conn", 4)) flag_bits |= LIBLLDB_LOG_CONNECTION;
else if (0 == ::strncasecmp(arg, "host", 4)) flag_bits |= LIBLLDB_LOG_HOST;
else if (0 == ::strncasecmp(arg, "unwind", 6)) flag_bits |= LIBLLDB_LOG_UNWIND;
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().Reset(flag_bits);
log->GetOptions().Reset(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"
"\tapi - enable logging of API calls and return values\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"
"\tscript - log events about the script interpreter\n"
"\tdyld - log shared library related activities\n"
"\tstate - log private and public process state changes\n"
"\tstep - log step related activities\n"
"\tunwind - log stack unwind activities\n"
"\tverbose - enable verbose logging\n"
"\twatch - log watchpoint related activities\n");
}
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