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//===-- Logging.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/Core/Logging.h"
// C Includes
// C++ Includes
#include <atomic>
#include <cstring>
// Other libraries and framework includes
// Project includes
#include "lldb/Core/Log.h"
#include "lldb/Core/StreamFile.h"
#include "lldb/Interpreter/Args.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 std::atomic<bool> g_log_enabled{false};
static Log *g_log = nullptr;
static Log *GetLog() {
if (!g_log_enabled)
return nullptr;
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 nullptr;
}
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 != nullptr) {
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 != nullptr && mask && (mask & log->GetMask().Get()))
return log;
return nullptr;
}
void lldb_private::DisableLog(const char **categories, Stream *feedback_strm) {
Log *log(GetLog());
if (log != nullptr) {
uint32_t flag_bits = 0;
if (categories && categories[0]) {
flag_bits = log->GetMask().Get();
for (size_t i = 0; categories[i] != nullptr; ++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 if (0 == ::strcasecmp(arg, "jit"))
flag_bits &= ~LIBLLDB_LOG_JIT_LOADER;
else if (0 == ::strcasecmp(arg, "language"))
flag_bits &= ~LIBLLDB_LOG_LANGUAGE;
else if (0 == ::strncasecmp(arg, "formatters", 10))
flag_bits &= ~LIBLLDB_LOG_DATAFORMATTERS;
else if (0 == ::strncasecmp(arg, "demangle", 8))
flag_bits &= ~LIBLLDB_LOG_DEMANGLE;
else {
feedback_strm->Printf("error: unrecognized log category '%s'\n",
arg);
ListLogCategories(feedback_strm);
return;
}
}
}
log->GetMask().Reset(flag_bits);
if (flag_bits == 0) {
log->SetStream(lldb::StreamSP());
g_log_enabled = false;
}
}
}
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 != nullptr)
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 != nullptr)
g_log->SetStream(log_stream_sp);
else
g_log = new Log(log_stream_sp);
}
if (g_log != nullptr) {
for (size_t i = 0; categories[i] != nullptr; ++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 if (0 == ::strcasecmp(arg, "jit"))
flag_bits |= LIBLLDB_LOG_JIT_LOADER;
else if (0 == ::strcasecmp(arg, "language"))
flag_bits |= LIBLLDB_LOG_LANGUAGE;
else if (0 == ::strncasecmp(arg, "formatters", 10))
flag_bits |= LIBLLDB_LOG_DATAFORMATTERS;
else if (0 == ::strncasecmp(arg, "demangle", 8))
flag_bits |= LIBLLDB_LOG_DEMANGLE;
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"
" demangle - log mangled names to catch demangler crashes\n"
" dyld - log shared library related activities\n"
" events - log broadcaster, listener and event queue activities\n"
" expr - log expressions\n"
" formatters - log data formatters related activities\n"
" host - log host activities\n"
" jit - log JIT events in the target\n"
" language - log language runtime events\n"
" mmap - log mmap related activities\n"
" module - log module activities such as when modules are created, "
"destroyed, 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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