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//===-- Statistics.cpp ----------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "lldb/Target/Statistics.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Core/Module.h"
#include "lldb/Symbol/SymbolFile.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/UnixSignals.h"
using namespace lldb;
using namespace lldb_private;
using namespace llvm;
static void EmplaceSafeString(llvm::json::Object &obj, llvm::StringRef key,
const std::string &str) {
if (str.empty())
return;
if (LLVM_LIKELY(llvm::json::isUTF8(str)))
obj.try_emplace(key, str);
else
obj.try_emplace(key, llvm::json::fixUTF8(str));
}
json::Value StatsSuccessFail::ToJSON() const {
return json::Object{{"successes", successes}, {"failures", failures}};
}
static double elapsed(const StatsTimepoint &start, const StatsTimepoint &end) {
StatsDuration elapsed = end.time_since_epoch() - start.time_since_epoch();
return elapsed.count();
}
void TargetStats::CollectStats(Target &target) {
m_module_identifiers.clear();
for (ModuleSP module_sp : target.GetImages().Modules())
m_module_identifiers.emplace_back((intptr_t)module_sp.get());
}
json::Value ModuleStats::ToJSON() const {
json::Object module;
EmplaceSafeString(module, "path", path);
EmplaceSafeString(module, "uuid", uuid);
EmplaceSafeString(module, "triple", triple);
module.try_emplace("identifier", identifier);
module.try_emplace("symbolTableParseTime", symtab_parse_time);
module.try_emplace("symbolTableIndexTime", symtab_index_time);
module.try_emplace("debugInfoParseTime", debug_parse_time);
module.try_emplace("debugInfoIndexTime", debug_index_time);
module.try_emplace("debugInfoByteSize", (int64_t)debug_info_size);
return module;
}
json::Value TargetStats::ToJSON(Target &target) {
CollectStats(target);
json::Array json_module_uuid_array;
for (auto module_identifier : m_module_identifiers)
json_module_uuid_array.emplace_back(module_identifier);
json::Object target_metrics_json{
{m_expr_eval.name, m_expr_eval.ToJSON()},
{m_frame_var.name, m_frame_var.ToJSON()},
{"moduleIdentifiers", std::move(json_module_uuid_array)}};
if (m_launch_or_attach_time && m_first_private_stop_time) {
double elapsed_time =
elapsed(*m_launch_or_attach_time, *m_first_private_stop_time);
target_metrics_json.try_emplace("launchOrAttachTime", elapsed_time);
}
if (m_launch_or_attach_time && m_first_public_stop_time) {
double elapsed_time =
elapsed(*m_launch_or_attach_time, *m_first_public_stop_time);
target_metrics_json.try_emplace("firstStopTime", elapsed_time);
}
target_metrics_json.try_emplace("targetCreateTime", m_create_time.count());
json::Array breakpoints_array;
double totalBreakpointResolveTime = 0.0;
// Rport both the normal breakpoint list and the internal breakpoint list.
for (int i = 0; i < 2; ++i) {
BreakpointList &breakpoints = target.GetBreakpointList(i == 1);
std::unique_lock<std::recursive_mutex> lock;
breakpoints.GetListMutex(lock);
size_t num_breakpoints = breakpoints.GetSize();
for (size_t i = 0; i < num_breakpoints; i++) {
Breakpoint *bp = breakpoints.GetBreakpointAtIndex(i).get();
breakpoints_array.push_back(bp->GetStatistics());
totalBreakpointResolveTime += bp->GetResolveTime().count();
}
}
ProcessSP process_sp = target.GetProcessSP();
if (process_sp) {
UnixSignalsSP unix_signals_sp = process_sp->GetUnixSignals();
if (unix_signals_sp)
target_metrics_json.try_emplace("signals",
unix_signals_sp->GetHitCountStatistics());
uint32_t stop_id = process_sp->GetStopID();
target_metrics_json.try_emplace("stopCount", stop_id);
}
target_metrics_json.try_emplace("breakpoints", std::move(breakpoints_array));
target_metrics_json.try_emplace("totalBreakpointResolveTime",
totalBreakpointResolveTime);
return target_metrics_json;
}
void TargetStats::SetLaunchOrAttachTime() {
m_launch_or_attach_time = StatsClock::now();
m_first_private_stop_time = llvm::None;
}
void TargetStats::SetFirstPrivateStopTime() {
// Launching and attaching has many paths depending on if synchronous mode
// was used or if we are stopping at the entry point or not. Only set the
// first stop time if it hasn't already been set.
if (!m_first_private_stop_time)
m_first_private_stop_time = StatsClock::now();
}
void TargetStats::SetFirstPublicStopTime() {
// Launching and attaching has many paths depending on if synchronous mode
// was used or if we are stopping at the entry point or not. Only set the
// first stop time if it hasn't already been set.
if (!m_first_public_stop_time)
m_first_public_stop_time = StatsClock::now();
}
bool DebuggerStats::g_collecting_stats = false;
llvm::json::Value DebuggerStats::ReportStatistics(Debugger &debugger,
Target *target) {
json::Array json_targets;
json::Array json_modules;
double symtab_parse_time = 0.0;
double symtab_index_time = 0.0;
double debug_parse_time = 0.0;
double debug_index_time = 0.0;
uint64_t debug_info_size = 0;
if (target) {
json_targets.emplace_back(target->ReportStatistics());
} else {
for (const auto &target : debugger.GetTargetList().Targets())
json_targets.emplace_back(target->ReportStatistics());
}
std::vector<ModuleStats> modules;
std::lock_guard<std::recursive_mutex> guard(
Module::GetAllocationModuleCollectionMutex());
const size_t num_modules = Module::GetNumberAllocatedModules();
for (size_t image_idx = 0; image_idx < num_modules; ++image_idx) {
Module *module = Module::GetAllocatedModuleAtIndex(image_idx);
ModuleStats module_stat;
module_stat.identifier = (intptr_t)module;
module_stat.path = module->GetFileSpec().GetPath();
if (ConstString object_name = module->GetObjectName()) {
module_stat.path.append(1, '(');
module_stat.path.append(object_name.GetStringRef().str());
module_stat.path.append(1, ')');
}
module_stat.uuid = module->GetUUID().GetAsString();
module_stat.triple = module->GetArchitecture().GetTriple().str();
module_stat.symtab_parse_time = module->GetSymtabParseTime().count();
module_stat.symtab_index_time = module->GetSymtabIndexTime().count();
SymbolFile *sym_file = module->GetSymbolFile();
if (sym_file) {
module_stat.debug_index_time = sym_file->GetDebugInfoIndexTime().count();
module_stat.debug_parse_time = sym_file->GetDebugInfoParseTime().count();
module_stat.debug_info_size = sym_file->GetDebugInfoSize();
}
symtab_parse_time += module_stat.symtab_parse_time;
symtab_index_time += module_stat.symtab_index_time;
debug_parse_time += module_stat.debug_parse_time;
debug_index_time += module_stat.debug_index_time;
debug_info_size += module_stat.debug_info_size;
json_modules.emplace_back(module_stat.ToJSON());
}
json::Object global_stats{
{"targets", std::move(json_targets)},
{"modules", std::move(json_modules)},
{"totalSymbolTableParseTime", symtab_parse_time},
{"totalSymbolTableIndexTime", symtab_index_time},
{"totalDebugInfoParseTime", debug_parse_time},
{"totalDebugInfoIndexTime", debug_index_time},
{"totalDebugInfoByteSize", debug_info_size},
};
return std::move(global_stats);
}
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