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41c440fbfea9112d4e8a9dfd8c851fe39a04525d
clang-p2996/lldb/source/lldb-log.cpp
Jason Molenda 2fd83355a8 Change the Mac OS X SystemRuntime plugin from using the placeholder 
libldi library to collect extended backtrace information; switch
to the libBacktraceRecording library and its APIs.  Complete the
work of adding QueueItems to Queues and allow for the QueueItems
to be interrogated about their extended backtraces in turn.

There's still cleanup and documentation to do on this code but the
code is functional and I it's a good time to get the work-in-progress 
checked in.  
<rdar://problem/15314027> 

llvm-svn: 200822
2014-02-05 05:44:54 +00:00

269 lines
12 KiB
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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 bool g_log_enabled = false;
static Log * g_log = NULL;
static Log *
GetLog ()
{
if (!g_log_enabled)
return NULL;
return g_log;
}
uint32_t
lldb_private::GetLogMask ()
{
Log *log(GetLog ());
if (log)
return log->GetMask().Get();
return 0;
}
bool
lldb_private::IsLogVerbose ()
{
uint32_t mask = GetLogMask();
return (mask & LIBLLDB_LOG_VERBOSE);
}
Log *
lldb_private::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
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(GetLog ());
if (log && mask && (mask & log->GetMask().Get()))
return log;
return NULL;
}
void
lldb_private::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 (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, "platform")) flag_bits &= ~LIBLLDB_LOG_PLATFORM;
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, "target")) flag_bits &= ~LIBLLDB_LOG_TARGET;
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 if (0 == ::strncasecmp(arg, "types", 5)) flag_bits &= ~LIBLLDB_LOG_TYPES;
else if (0 == ::strncasecmp(arg, "symbol", 6)) flag_bits &= ~LIBLLDB_LOG_SYMBOLS;
else if (0 == ::strcasecmp(arg, "system-runtime")) flag_bits &= ~LIBLLDB_LOG_SYSTEM_RUNTIME;
else if (0 == ::strncasecmp(arg, "module", 6)) flag_bits &= ~LIBLLDB_LOG_MODULES;
else if (0 == ::strncasecmp(arg, "mmap", 4)) flag_bits &= ~LIBLLDB_LOG_MMAP;
else if (0 == ::strcasecmp(arg, "os")) flag_bits &= ~LIBLLDB_LOG_OS;
else
{
feedback_strm->Printf ("error: unrecognized log category '%s'\n", arg);
ListLogCategories (feedback_strm);
return;
}
}
}
log->GetMask().Reset (flag_bits);
if (flag_bits == 0)
g_log_enabled = false;
}
return;
}
Log *
lldb_private::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;
if (g_log)
flag_bits = g_log->GetMask().Get();
else
flag_bits = 0;
// 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)
{
for (size_t i=0; categories[i] != NULL; ++i)
{
const char *arg = categories[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 == ::strncasecmp(arg, "commu", 5)) flag_bits |= LIBLLDB_LOG_COMMUNICATION;
else if (0 == ::strncasecmp(arg, "conn", 4)) flag_bits |= LIBLLDB_LOG_CONNECTION;
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, "host", 4)) flag_bits |= LIBLLDB_LOG_HOST;
else if (0 == ::strncasecmp(arg, "mmap", 4)) flag_bits |= LIBLLDB_LOG_MMAP;
else if (0 == ::strncasecmp(arg, "module", 6)) flag_bits |= LIBLLDB_LOG_MODULES;
else if (0 == ::strncasecmp(arg, "object", 6)) flag_bits |= LIBLLDB_LOG_OBJECT;
else if (0 == ::strcasecmp(arg, "os")) flag_bits |= LIBLLDB_LOG_OS;
else if (0 == ::strcasecmp(arg, "platform")) flag_bits |= LIBLLDB_LOG_PLATFORM;
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 == ::strncasecmp(arg, "symbol", 6)) flag_bits |= LIBLLDB_LOG_SYMBOLS;
else if (0 == ::strcasecmp(arg, "system-runtime")) flag_bits |= LIBLLDB_LOG_SYSTEM_RUNTIME;
else if (0 == ::strcasecmp(arg, "target")) flag_bits |= LIBLLDB_LOG_TARGET;
else if (0 == ::strncasecmp(arg, "temp", 4)) flag_bits |= LIBLLDB_LOG_TEMPORARY;
else if (0 == ::strcasecmp(arg, "thread")) flag_bits |= LIBLLDB_LOG_THREAD;
else if (0 == ::strncasecmp(arg, "types", 5)) flag_bits |= LIBLLDB_LOG_TYPES;
else if (0 == ::strncasecmp(arg, "unwind", 6)) flag_bits |= LIBLLDB_LOG_UNWIND;
else if (0 == ::strcasecmp(arg, "verbose")) flag_bits |= LIBLLDB_LOG_VERBOSE;
else if (0 == ::strncasecmp(arg, "watch", 5)) flag_bits |= LIBLLDB_LOG_WATCHPOINTS;
else
{
feedback_strm->Printf("error: unrecognized log category '%s'\n", arg);
ListLogCategories (feedback_strm);
return g_log;
}
}
g_log->GetMask().Reset(flag_bits);
g_log->GetOptions().Reset(log_options);
}
g_log_enabled = true;
return g_log;
}
void
lldb_private::ListLogCategories (Stream *strm)
{
strm->Printf("Logging categories for 'lldb':\n"
" all - turn on all available logging categories\n"
" api - enable logging of API calls and return values\n"
" break - log breakpoints\n"
" commands - log command argument parsing\n"
" communication - log communication activities\n"
" connection - log connection details\n"
" default - enable the default set of logging categories for liblldb\n"
" dyld - log shared library related activities\n"
" events - log broadcaster, listener and event queue activities\n"
" expr - log expressions\n"
" host - log host activities\n"
" mmap - log mmap related activities\n"
" module - log module activities such as when modules are created, detroyed, replaced, and more\n"
" object - log object construction/destruction for important objects\n"
" os - log OperatingSystem plugin related activities\n"
" platform - log platform events and activities\n"
" process - log process events and activities\n"
" script - log events about the script interpreter\n"
" state - log private and public process state changes\n"
" step - log step related activities\n"
" symbol - log symbol related issues and warnings\n"
" system-runtime - log system runtime events\n"
" target - log target events and activities\n"
" thread - log thread events and activities\n"
" types - log type system related activities\n"
" unwind - log stack unwind activities\n"
" verbose - enable verbose logging\n"
" watch - log watchpoint related activities\n");
}
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