mirror of
https://github.com/capstone-engine/llvm-capstone.git
synced 2025-04-16 13:20:41 +00:00
2d4edfbc6a
don't crash if we disable logging when some code already has a copy of the logger. Prior to this fix, logs were handed out as pointers and if they were held onto while a log got disabled, then it could cause a crash. Now all logs are handed out as shared pointers so this problem shouldn't happen anymore. We are also using our new shared pointers that put the shared pointer count and the object into the same allocation for a tad better performance. llvm-svn: 118319
182 lines
7.0 KiB
C++
182 lines
7.0 KiB
C++
//===-- 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/Interpreter/Args.h"
|
|
#include "lldb/Core/StreamFile.h"
|
|
|
|
#include "ProcessGDBRemote.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;
|
|
}
|
|
|
|
LogSP
|
|
ProcessGDBRemoteLog::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
|
|
ProcessGDBRemoteLog::DisableLog (Args &args, Stream *feedback_strm)
|
|
{
|
|
LogSP log (GetLog ());
|
|
if (log)
|
|
{
|
|
uint32_t flag_bits = log->GetMask().Get();
|
|
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 (::strcasecmp (arg, "async") == 0 ) flag_bits &= ~GDBR_LOG_ASYNC;
|
|
else if (::strcasestr (arg, "break") == arg ) flag_bits &= ~GDBR_LOG_BREAKPOINTS;
|
|
else if (::strcasestr (arg, "comm") == arg ) flag_bits &= ~GDBR_LOG_COMM;
|
|
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);
|
|
ListLogCategories (feedback_strm);
|
|
}
|
|
|
|
}
|
|
|
|
if (flag_bits == 0)
|
|
GetLog ().reset();
|
|
else
|
|
log->GetMask().Reset (flag_bits);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
LogSP
|
|
ProcessGDBRemoteLog::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)
|
|
{
|
|
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 (::strcasecmp (arg, "async") == 0 ) flag_bits |= GDBR_LOG_ASYNC;
|
|
else if (::strcasestr (arg, "break") == arg ) flag_bits |= GDBR_LOG_BREAKPOINTS;
|
|
else if (::strcasestr (arg, "comm") == arg ) flag_bits |= GDBR_LOG_COMM;
|
|
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;
|
|
log->GetMask().Reset(flag_bits);
|
|
log->GetOptions().Reset(log_options);
|
|
}
|
|
return log;
|
|
}
|
|
|
|
void
|
|
ProcessGDBRemoteLog::ListLogCategories (Stream *strm)
|
|
{
|
|
strm->Printf("Logging categories for '%s':\n"
|
|
"\tall - turn on all available logging categories\n"
|
|
"\tasync - log asynchronous activity\n"
|
|
"\tbreak - log breakpoints\n"
|
|
"\tcommunication - log communication activity\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, ...)
|
|
{
|
|
LogSP log (ProcessGDBRemoteLog::GetLogIfAllCategoriesSet (mask));
|
|
if (log)
|
|
{
|
|
va_list args;
|
|
va_start (args, format);
|
|
log->VAPrintf (format, args);
|
|
va_end (args);
|
|
}
|
|
}
|