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

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//===-- Target.cpp ----------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// C Includes
// C++ Includes
#include <mutex>
// Other libraries and framework includes
// Project includes
#include "Plugins/ExpressionParser/Clang/ClangASTSource.h"
#include "Plugins/ExpressionParser/Clang/ClangModulesDeclVendor.h"
#include "Plugins/ExpressionParser/Clang/ClangPersistentVariables.h"
#include "lldb/Breakpoint/BreakpointIDList.h"
#include "lldb/Breakpoint/BreakpointResolver.h"
#include "lldb/Breakpoint/BreakpointResolverAddress.h"
#include "lldb/Breakpoint/BreakpointResolverFileLine.h"
#include "lldb/Breakpoint/BreakpointResolverFileRegex.h"
#include "lldb/Breakpoint/BreakpointResolverName.h"
#include "lldb/Breakpoint/Watchpoint.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Core/Event.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/ModuleSpec.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/Section.h"
#include "lldb/Core/SourceManager.h"
#include "lldb/Core/State.h"
#include "lldb/Core/StreamFile.h"
#include "lldb/Core/ValueObject.h"
#include "lldb/Expression/REPL.h"
#include "lldb/Expression/UserExpression.h"
#include "lldb/Host/Host.h"
#include "lldb/Host/PosixApi.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/CommandReturnObject.h"
#include "lldb/Interpreter/OptionGroupWatchpoint.h"
#include "lldb/Interpreter/OptionValues.h"
#include "lldb/Interpreter/Property.h"
#include "lldb/Symbol/ClangASTContext.h"
#include "lldb/Symbol/Function.h"
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Symbol/Symbol.h"
#include "lldb/Target/Language.h"
#include "lldb/Target/LanguageRuntime.h"
#include "lldb/Target/ObjCLanguageRuntime.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/SectionLoadList.h"
#include "lldb/Target/StackFrame.h"
#include "lldb/Target/SystemRuntime.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h"
#include "lldb/Target/ThreadSpec.h"
#include "lldb/Utility/FileSpec.h"
#include "lldb/Utility/LLDBAssert.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/StreamString.h"
#include "lldb/Utility/Timer.h"
using namespace lldb;
using namespace lldb_private;
constexpr std::chrono::milliseconds EvaluateExpressionOptions::default_timeout;
Target::Arch::Arch(const ArchSpec &spec)
: m_spec(spec),
m_plugin_up(PluginManager::CreateArchitectureInstance(spec)) {}
const Target::Arch& Target::Arch::operator=(const ArchSpec &spec) {
m_spec = spec;
m_plugin_up = PluginManager::CreateArchitectureInstance(spec);
return *this;
}
ConstString &Target::GetStaticBroadcasterClass() {
static ConstString class_name("lldb.target");
return class_name;
}
Target::Target(Debugger &debugger, const ArchSpec &target_arch,
const lldb::PlatformSP &platform_sp, bool is_dummy_target)
: TargetProperties(this),
Broadcaster(debugger.GetBroadcasterManager(),
Target::GetStaticBroadcasterClass().AsCString()),
ExecutionContextScope(), m_debugger(debugger), m_platform_sp(platform_sp),
m_mutex(), m_arch(target_arch), m_images(this), m_section_load_history(),
m_breakpoint_list(false), m_internal_breakpoint_list(true),
m_watchpoint_list(), m_process_sp(), m_search_filter_sp(),
m_image_search_paths(ImageSearchPathsChanged, this), m_ast_importer_sp(),
m_source_manager_ap(), m_stop_hooks(), m_stop_hook_next_id(0),
m_valid(true), m_suppress_stop_hooks(false),
m_is_dummy_target(is_dummy_target),
m_stats_storage(static_cast<int>(StatisticKind::StatisticMax))
{
SetEventName(eBroadcastBitBreakpointChanged, "breakpoint-changed");
SetEventName(eBroadcastBitModulesLoaded, "modules-loaded");
SetEventName(eBroadcastBitModulesUnloaded, "modules-unloaded");
SetEventName(eBroadcastBitWatchpointChanged, "watchpoint-changed");
SetEventName(eBroadcastBitSymbolsLoaded, "symbols-loaded");
CheckInWithManager();
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT));
if (log)
log->Printf("%p Target::Target()", static_cast<void *>(this));
if (target_arch.IsValid()) {
LogIfAnyCategoriesSet(LIBLLDB_LOG_TARGET,
"Target::Target created with architecture %s (%s)",
target_arch.GetArchitectureName(),
target_arch.GetTriple().getTriple().c_str());
}
}
Target::~Target() {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT));
if (log)
log->Printf("%p Target::~Target()", static_cast<void *>(this));
DeleteCurrentProcess();
}
void Target::PrimeFromDummyTarget(Target *target) {
if (!target)
return;
m_stop_hooks = target->m_stop_hooks;
for (BreakpointSP breakpoint_sp : target->m_breakpoint_list.Breakpoints()) {
if (breakpoint_sp->IsInternal())
continue;
BreakpointSP new_bp(new Breakpoint(*this, *breakpoint_sp.get()));
AddBreakpoint(new_bp, false);
}
for (auto bp_name_entry : target->m_breakpoint_names)
{
BreakpointName *new_bp_name = new BreakpointName(*bp_name_entry.second);
AddBreakpointName(new_bp_name);
}
}
void Target::Dump(Stream *s, lldb::DescriptionLevel description_level) {
// s->Printf("%.*p: ", (int)sizeof(void*) * 2, this);
if (description_level != lldb::eDescriptionLevelBrief) {
s->Indent();
s->PutCString("Target\n");
s->IndentMore();
m_images.Dump(s);
m_breakpoint_list.Dump(s);
m_internal_breakpoint_list.Dump(s);
s->IndentLess();
} else {
Module *exe_module = GetExecutableModulePointer();
if (exe_module)
s->PutCString(exe_module->GetFileSpec().GetFilename().GetCString());
else
s->PutCString("No executable module.");
}
}
void Target::CleanupProcess() {
// Do any cleanup of the target we need to do between process instances.
// NB It is better to do this before destroying the process in case the
// clean up needs some help from the process.
m_breakpoint_list.ClearAllBreakpointSites();
m_internal_breakpoint_list.ClearAllBreakpointSites();
// Disable watchpoints just on the debugger side.
std::unique_lock<std::recursive_mutex> lock;
this->GetWatchpointList().GetListMutex(lock);
DisableAllWatchpoints(false);
ClearAllWatchpointHitCounts();
ClearAllWatchpointHistoricValues();
}
void Target::DeleteCurrentProcess() {
if (m_process_sp) {
m_section_load_history.Clear();
if (m_process_sp->IsAlive())
m_process_sp->Destroy(false);
m_process_sp->Finalize();
CleanupProcess();
m_process_sp.reset();
}
}
const lldb::ProcessSP &Target::CreateProcess(ListenerSP listener_sp,
llvm::StringRef plugin_name,
const FileSpec *crash_file) {
DeleteCurrentProcess();
m_process_sp = Process::FindPlugin(shared_from_this(), plugin_name,
listener_sp, crash_file);
return m_process_sp;
}
const lldb::ProcessSP &Target::GetProcessSP() const { return m_process_sp; }
lldb::REPLSP Target::GetREPL(Status &err, lldb::LanguageType language,
const char *repl_options, bool can_create) {
if (language == eLanguageTypeUnknown) {
std::set<LanguageType> repl_languages;
Language::GetLanguagesSupportingREPLs(repl_languages);
if (repl_languages.size() == 1) {
language = *repl_languages.begin();
} else if (repl_languages.size() == 0) {
err.SetErrorStringWithFormat(
"LLDB isn't configured with REPL support for any languages.");
return REPLSP();
} else {
err.SetErrorStringWithFormat(
"Multiple possible REPL languages. Please specify a language.");
return REPLSP();
}
}
REPLMap::iterator pos = m_repl_map.find(language);
if (pos != m_repl_map.end()) {
return pos->second;
}
if (!can_create) {
err.SetErrorStringWithFormat(
"Couldn't find an existing REPL for %s, and can't create a new one",
Language::GetNameForLanguageType(language));
return lldb::REPLSP();
}
Debugger *const debugger = nullptr;
lldb::REPLSP ret = REPL::Create(err, language, debugger, this, repl_options);
if (ret) {
m_repl_map[language] = ret;
return m_repl_map[language];
}
if (err.Success()) {
err.SetErrorStringWithFormat("Couldn't create a REPL for %s",
Language::GetNameForLanguageType(language));
}
return lldb::REPLSP();
}
void Target::SetREPL(lldb::LanguageType language, lldb::REPLSP repl_sp) {
lldbassert(!m_repl_map.count(language));
m_repl_map[language] = repl_sp;
}
void Target::Destroy() {
std::lock_guard<std::recursive_mutex> guard(m_mutex);
m_valid = false;
DeleteCurrentProcess();
m_platform_sp.reset();
m_arch = ArchSpec();
ClearModules(true);
m_section_load_history.Clear();
const bool notify = false;
m_breakpoint_list.RemoveAll(notify);
m_internal_breakpoint_list.RemoveAll(notify);
m_last_created_breakpoint.reset();
m_last_created_watchpoint.reset();
m_search_filter_sp.reset();
m_image_search_paths.Clear(notify);
m_stop_hooks.clear();
m_stop_hook_next_id = 0;
m_suppress_stop_hooks = false;
}
BreakpointList &Target::GetBreakpointList(bool internal) {
if (internal)
return m_internal_breakpoint_list;
else
return m_breakpoint_list;
}
const BreakpointList &Target::GetBreakpointList(bool internal) const {
if (internal)
return m_internal_breakpoint_list;
else
return m_breakpoint_list;
}
BreakpointSP Target::GetBreakpointByID(break_id_t break_id) {
BreakpointSP bp_sp;
if (LLDB_BREAK_ID_IS_INTERNAL(break_id))
bp_sp = m_internal_breakpoint_list.FindBreakpointByID(break_id);
else
bp_sp = m_breakpoint_list.FindBreakpointByID(break_id);
return bp_sp;
}
BreakpointSP Target::CreateSourceRegexBreakpoint(
const FileSpecList *containingModules,
const FileSpecList *source_file_spec_list,
const std::unordered_set<std::string> &function_names,
RegularExpression &source_regex, bool internal, bool hardware,
LazyBool move_to_nearest_code) {
SearchFilterSP filter_sp(GetSearchFilterForModuleAndCUList(
containingModules, source_file_spec_list));
if (move_to_nearest_code == eLazyBoolCalculate)
move_to_nearest_code = GetMoveToNearestCode() ? eLazyBoolYes : eLazyBoolNo;
BreakpointResolverSP resolver_sp(new BreakpointResolverFileRegex(
nullptr, source_regex, function_names,
!static_cast<bool>(move_to_nearest_code)));
return CreateBreakpoint(filter_sp, resolver_sp, internal, hardware, true);
}
BreakpointSP Target::CreateBreakpoint(const FileSpecList *containingModules,
const FileSpec &file, uint32_t line_no,
lldb::addr_t offset,
LazyBool check_inlines,
LazyBool skip_prologue, bool internal,
bool hardware,
LazyBool move_to_nearest_code) {
FileSpec remapped_file;
ConstString remapped_path;
if (GetSourcePathMap().ReverseRemapPath(ConstString(file.GetPath().c_str()),
remapped_path))
remapped_file.SetFile(remapped_path.AsCString(), false);
else
remapped_file = file;
if (check_inlines == eLazyBoolCalculate) {
const InlineStrategy inline_strategy = GetInlineStrategy();
switch (inline_strategy) {
case eInlineBreakpointsNever:
check_inlines = eLazyBoolNo;
break;
case eInlineBreakpointsHeaders:
if (remapped_file.IsSourceImplementationFile())
check_inlines = eLazyBoolNo;
else
check_inlines = eLazyBoolYes;
break;
case eInlineBreakpointsAlways:
check_inlines = eLazyBoolYes;
break;
}
}
SearchFilterSP filter_sp;
if (check_inlines == eLazyBoolNo) {
// Not checking for inlines, we are looking only for matching compile units
FileSpecList compile_unit_list;
compile_unit_list.Append(remapped_file);
filter_sp = GetSearchFilterForModuleAndCUList(containingModules,
&compile_unit_list);
} else {
filter_sp = GetSearchFilterForModuleList(containingModules);
}
if (skip_prologue == eLazyBoolCalculate)
skip_prologue = GetSkipPrologue() ? eLazyBoolYes : eLazyBoolNo;
if (move_to_nearest_code == eLazyBoolCalculate)
move_to_nearest_code = GetMoveToNearestCode() ? eLazyBoolYes : eLazyBoolNo;
BreakpointResolverSP resolver_sp(new BreakpointResolverFileLine(
nullptr, remapped_file, line_no, offset, check_inlines, skip_prologue,
!static_cast<bool>(move_to_nearest_code)));
return CreateBreakpoint(filter_sp, resolver_sp, internal, hardware, true);
}
BreakpointSP Target::CreateBreakpoint(lldb::addr_t addr, bool internal,
bool hardware) {
Address so_addr;
// Check for any reason we want to move this breakpoint to other address.
addr = GetBreakableLoadAddress(addr);
// Attempt to resolve our load address if possible, though it is ok if it
// doesn't resolve to section/offset.
// Try and resolve as a load address if possible
GetSectionLoadList().ResolveLoadAddress(addr, so_addr);
if (!so_addr.IsValid()) {
// The address didn't resolve, so just set this as an absolute address
so_addr.SetOffset(addr);
}
BreakpointSP bp_sp(CreateBreakpoint(so_addr, internal, hardware));
return bp_sp;
}
BreakpointSP Target::CreateBreakpoint(const Address &addr, bool internal,
bool hardware) {
SearchFilterSP filter_sp(
new SearchFilterForUnconstrainedSearches(shared_from_this()));
BreakpointResolverSP resolver_sp(
new BreakpointResolverAddress(nullptr, addr));
return CreateBreakpoint(filter_sp, resolver_sp, internal, hardware, false);
}
lldb::BreakpointSP
Target::CreateAddressInModuleBreakpoint(lldb::addr_t file_addr, bool internal,
const FileSpec *file_spec,
bool request_hardware) {
SearchFilterSP filter_sp(
new SearchFilterForUnconstrainedSearches(shared_from_this()));
BreakpointResolverSP resolver_sp(
new BreakpointResolverAddress(nullptr, file_addr, file_spec));
return CreateBreakpoint(filter_sp, resolver_sp, internal, request_hardware,
false);
}
BreakpointSP
Target::CreateBreakpoint(const FileSpecList *containingModules,
const FileSpecList *containingSourceFiles,
const char *func_name, uint32_t func_name_type_mask,
LanguageType language, lldb::addr_t offset,
LazyBool skip_prologue, bool internal, bool hardware) {
BreakpointSP bp_sp;
if (func_name) {
SearchFilterSP filter_sp(GetSearchFilterForModuleAndCUList(
containingModules, containingSourceFiles));
if (skip_prologue == eLazyBoolCalculate)
skip_prologue = GetSkipPrologue() ? eLazyBoolYes : eLazyBoolNo;
if (language == lldb::eLanguageTypeUnknown)
language = GetLanguage();
BreakpointResolverSP resolver_sp(new BreakpointResolverName(
nullptr, func_name, func_name_type_mask, language, Breakpoint::Exact,
offset, skip_prologue));
bp_sp = CreateBreakpoint(filter_sp, resolver_sp, internal, hardware, true);
}
return bp_sp;
}
lldb::BreakpointSP
Target::CreateBreakpoint(const FileSpecList *containingModules,
const FileSpecList *containingSourceFiles,
const std::vector<std::string> &func_names,
uint32_t func_name_type_mask, LanguageType language,
lldb::addr_t offset, LazyBool skip_prologue,
bool internal, bool hardware) {
BreakpointSP bp_sp;
size_t num_names = func_names.size();
if (num_names > 0) {
SearchFilterSP filter_sp(GetSearchFilterForModuleAndCUList(
containingModules, containingSourceFiles));
if (skip_prologue == eLazyBoolCalculate)
skip_prologue = GetSkipPrologue() ? eLazyBoolYes : eLazyBoolNo;
if (language == lldb::eLanguageTypeUnknown)
language = GetLanguage();
BreakpointResolverSP resolver_sp(
new BreakpointResolverName(nullptr, func_names, func_name_type_mask,
language, offset, skip_prologue));
bp_sp = CreateBreakpoint(filter_sp, resolver_sp, internal, hardware, true);
}
return bp_sp;
}
BreakpointSP Target::CreateBreakpoint(
const FileSpecList *containingModules,
const FileSpecList *containingSourceFiles, const char *func_names[],
size_t num_names, uint32_t func_name_type_mask, LanguageType language,
lldb::addr_t offset, LazyBool skip_prologue, bool internal, bool hardware) {
BreakpointSP bp_sp;
if (num_names > 0) {
SearchFilterSP filter_sp(GetSearchFilterForModuleAndCUList(
containingModules, containingSourceFiles));
if (skip_prologue == eLazyBoolCalculate) {
if (offset == 0)
skip_prologue = GetSkipPrologue() ? eLazyBoolYes : eLazyBoolNo;
else
skip_prologue = eLazyBoolNo;
}
if (language == lldb::eLanguageTypeUnknown)
language = GetLanguage();
BreakpointResolverSP resolver_sp(new BreakpointResolverName(
nullptr, func_names, num_names, func_name_type_mask, language, offset,
skip_prologue));
resolver_sp->SetOffset(offset);
bp_sp = CreateBreakpoint(filter_sp, resolver_sp, internal, hardware, true);
}
return bp_sp;
}
SearchFilterSP
Target::GetSearchFilterForModule(const FileSpec *containingModule) {
SearchFilterSP filter_sp;
if (containingModule != nullptr) {
// TODO: We should look into sharing module based search filters
// across many breakpoints like we do for the simple target based one
filter_sp.reset(
new SearchFilterByModule(shared_from_this(), *containingModule));
} else {
if (!m_search_filter_sp)
m_search_filter_sp.reset(
new SearchFilterForUnconstrainedSearches(shared_from_this()));
filter_sp = m_search_filter_sp;
}
return filter_sp;
}
SearchFilterSP
Target::GetSearchFilterForModuleList(const FileSpecList *containingModules) {
SearchFilterSP filter_sp;
if (containingModules && containingModules->GetSize() != 0) {
// TODO: We should look into sharing module based search filters
// across many breakpoints like we do for the simple target based one
filter_sp.reset(
new SearchFilterByModuleList(shared_from_this(), *containingModules));
} else {
if (!m_search_filter_sp)
m_search_filter_sp.reset(
new SearchFilterForUnconstrainedSearches(shared_from_this()));
filter_sp = m_search_filter_sp;
}
return filter_sp;
}
SearchFilterSP Target::GetSearchFilterForModuleAndCUList(
const FileSpecList *containingModules,
const FileSpecList *containingSourceFiles) {
if (containingSourceFiles == nullptr || containingSourceFiles->GetSize() == 0)
return GetSearchFilterForModuleList(containingModules);
SearchFilterSP filter_sp;
if (containingModules == nullptr) {
// We could make a special "CU List only SearchFilter". Better yet was if
// these could be composable, but that will take a little reworking.
filter_sp.reset(new SearchFilterByModuleListAndCU(
shared_from_this(), FileSpecList(), *containingSourceFiles));
} else {
filter_sp.reset(new SearchFilterByModuleListAndCU(
shared_from_this(), *containingModules, *containingSourceFiles));
}
return filter_sp;
}
BreakpointSP Target::CreateFuncRegexBreakpoint(
const FileSpecList *containingModules,
const FileSpecList *containingSourceFiles, RegularExpression &func_regex,
lldb::LanguageType requested_language, LazyBool skip_prologue,
bool internal, bool hardware) {
SearchFilterSP filter_sp(GetSearchFilterForModuleAndCUList(
containingModules, containingSourceFiles));
bool skip = (skip_prologue == eLazyBoolCalculate)
? GetSkipPrologue()
: static_cast<bool>(skip_prologue);
BreakpointResolverSP resolver_sp(new BreakpointResolverName(
nullptr, func_regex, requested_language, 0, skip));
return CreateBreakpoint(filter_sp, resolver_sp, internal, hardware, true);
}
lldb::BreakpointSP
Target::CreateExceptionBreakpoint(enum lldb::LanguageType language,
bool catch_bp, bool throw_bp, bool internal,
Args *additional_args, Status *error) {
BreakpointSP exc_bkpt_sp = LanguageRuntime::CreateExceptionBreakpoint(
*this, language, catch_bp, throw_bp, internal);
if (exc_bkpt_sp && additional_args) {
Breakpoint::BreakpointPreconditionSP precondition_sp =
exc_bkpt_sp->GetPrecondition();
if (precondition_sp && additional_args) {
if (error)
*error = precondition_sp->ConfigurePrecondition(*additional_args);
else
precondition_sp->ConfigurePrecondition(*additional_args);
}
}
return exc_bkpt_sp;
}
BreakpointSP Target::CreateBreakpoint(SearchFilterSP &filter_sp,
BreakpointResolverSP &resolver_sp,
bool internal, bool request_hardware,
bool resolve_indirect_symbols) {
BreakpointSP bp_sp;
if (filter_sp && resolver_sp) {
bp_sp.reset(new Breakpoint(*this, filter_sp, resolver_sp, request_hardware,
resolve_indirect_symbols));
resolver_sp->SetBreakpoint(bp_sp.get());
AddBreakpoint(bp_sp, internal);
}
return bp_sp;
}
void Target::AddBreakpoint(lldb::BreakpointSP bp_sp, bool internal) {
if (!bp_sp)
return;
if (internal)
m_internal_breakpoint_list.Add(bp_sp, false);
else
m_breakpoint_list.Add(bp_sp, true);
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
if (log) {
StreamString s;
bp_sp->GetDescription(&s, lldb::eDescriptionLevelVerbose);
log->Printf("Target::%s (internal = %s) => break_id = %s\n", __FUNCTION__,
bp_sp->IsInternal() ? "yes" : "no", s.GetData());
}
bp_sp->ResolveBreakpoint();
if (!internal) {
m_last_created_breakpoint = bp_sp;
}
}
void Target::AddNameToBreakpoint(BreakpointID &id,
const char *name,
Status &error)
{
BreakpointSP bp_sp
= m_breakpoint_list.FindBreakpointByID(id.GetBreakpointID());
if (!bp_sp)
{
StreamString s;
id.GetDescription(&s, eDescriptionLevelBrief);
error.SetErrorStringWithFormat("Could not find breakpoint %s",
s.GetData());
return;
}
AddNameToBreakpoint(bp_sp, name, error);
}
void Target::AddNameToBreakpoint(BreakpointSP &bp_sp,
const char *name,
Status &error)
{
if (!bp_sp)
return;
BreakpointName *bp_name = FindBreakpointName(ConstString(name), true, error);
if (!bp_name)
return;
bp_name->ConfigureBreakpoint(bp_sp);
bp_sp->AddName(name);
}
void Target::AddBreakpointName(BreakpointName *bp_name) {
m_breakpoint_names.insert(std::make_pair(bp_name->GetName(), bp_name));
}
BreakpointName *Target::FindBreakpointName(const ConstString &name,
bool can_create,
Status &error)
{
BreakpointID::StringIsBreakpointName(name.GetStringRef(), error);
if (!error.Success())
return nullptr;
BreakpointNameList::iterator iter = m_breakpoint_names.find(name);
if (iter == m_breakpoint_names.end()) {
if (!can_create)
{
error.SetErrorStringWithFormat("Breakpoint name \"%s\" doesn't exist and "
"can_create is false.", name.AsCString());
return nullptr;
}
iter = m_breakpoint_names.insert(std::make_pair(name,
new BreakpointName(name)))
.first;
}
return (iter->second);
}
void
Target::DeleteBreakpointName(const ConstString &name)
{
BreakpointNameList::iterator iter = m_breakpoint_names.find(name);
if (iter != m_breakpoint_names.end()) {
const char *name_cstr = name.AsCString();
m_breakpoint_names.erase(iter);
for (auto bp_sp : m_breakpoint_list.Breakpoints())
bp_sp->RemoveName(name_cstr);
}
}
void Target::RemoveNameFromBreakpoint(lldb::BreakpointSP &bp_sp,
const ConstString &name)
{
bp_sp->RemoveName(name.AsCString());
}
void Target::ConfigureBreakpointName(BreakpointName &bp_name,
const BreakpointOptions &new_options,
const BreakpointName::Permissions &new_permissions)
{
bp_name.GetOptions().CopyOverSetOptions(new_options);
bp_name.GetPermissions().MergeInto(new_permissions);
ApplyNameToBreakpoints(bp_name);
}
void Target::ApplyNameToBreakpoints(BreakpointName &bp_name) {
BreakpointList bkpts_with_name(false);
m_breakpoint_list.FindBreakpointsByName(bp_name.GetName().AsCString(),
bkpts_with_name);
for (auto bp_sp : bkpts_with_name.Breakpoints())
bp_name.ConfigureBreakpoint(bp_sp);
}
void Target::GetBreakpointNames(std::vector<std::string> &names)
{
names.clear();
for (auto bp_name : m_breakpoint_names) {
names.push_back(bp_name.first.AsCString());
}
std::sort(names.begin(), names.end());
}
bool Target::ProcessIsValid() {
return (m_process_sp && m_process_sp->IsAlive());
}
static bool CheckIfWatchpointsExhausted(Target *target, Status &error) {
uint32_t num_supported_hardware_watchpoints;
Status rc = target->GetProcessSP()->GetWatchpointSupportInfo(
num_supported_hardware_watchpoints);
if (num_supported_hardware_watchpoints == 0) {
error.SetErrorStringWithFormat(
"Target supports (%u) hardware watchpoint slots.\n",
num_supported_hardware_watchpoints);
return false;
}
return true;
}
// See also Watchpoint::SetWatchpointType(uint32_t type) and the
// OptionGroupWatchpoint::WatchType enum type.
WatchpointSP Target::CreateWatchpoint(lldb::addr_t addr, size_t size,
const CompilerType *type, uint32_t kind,
Status &error) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_WATCHPOINTS));
if (log)
log->Printf("Target::%s (addr = 0x%8.8" PRIx64 " size = %" PRIu64
" type = %u)\n",
__FUNCTION__, addr, (uint64_t)size, kind);
WatchpointSP wp_sp;
if (!ProcessIsValid()) {
error.SetErrorString("process is not alive");
return wp_sp;
}
if (addr == LLDB_INVALID_ADDRESS || size == 0) {
if (size == 0)
error.SetErrorString("cannot set a watchpoint with watch_size of 0");
else
error.SetErrorStringWithFormat("invalid watch address: %" PRIu64, addr);
return wp_sp;
}
if (!LLDB_WATCH_TYPE_IS_VALID(kind)) {
error.SetErrorStringWithFormat("invalid watchpoint type: %d", kind);
}
if (!CheckIfWatchpointsExhausted(this, error))
return wp_sp;
// Currently we only support one watchpoint per address, with total number of
// watchpoints limited by the hardware which the inferior is running on.
// Grab the list mutex while doing operations.
const bool notify = false; // Don't notify about all the state changes we do
// on creating the watchpoint.
std::unique_lock<std::recursive_mutex> lock;
this->GetWatchpointList().GetListMutex(lock);
WatchpointSP matched_sp = m_watchpoint_list.FindByAddress(addr);
if (matched_sp) {
size_t old_size = matched_sp->GetByteSize();
uint32_t old_type =
(matched_sp->WatchpointRead() ? LLDB_WATCH_TYPE_READ : 0) |
(matched_sp->WatchpointWrite() ? LLDB_WATCH_TYPE_WRITE : 0);
// Return the existing watchpoint if both size and type match.
if (size == old_size && kind == old_type) {
wp_sp = matched_sp;
wp_sp->SetEnabled(false, notify);
} else {
// Nil the matched watchpoint; we will be creating a new one.
m_process_sp->DisableWatchpoint(matched_sp.get(), notify);
m_watchpoint_list.Remove(matched_sp->GetID(), true);
}
}
if (!wp_sp) {
wp_sp.reset(new Watchpoint(*this, addr, size, type));
wp_sp->SetWatchpointType(kind, notify);
m_watchpoint_list.Add(wp_sp, true);
}
error = m_process_sp->EnableWatchpoint(wp_sp.get(), notify);
if (log)
log->Printf("Target::%s (creation of watchpoint %s with id = %u)\n",
__FUNCTION__, error.Success() ? "succeeded" : "failed",
wp_sp->GetID());
if (error.Fail()) {
// Enabling the watchpoint on the device side failed. Remove the said
// watchpoint from the list maintained by the target instance.
m_watchpoint_list.Remove(wp_sp->GetID(), true);
// See if we could provide more helpful error message.
if (!OptionGroupWatchpoint::IsWatchSizeSupported(size))
error.SetErrorStringWithFormat(
"watch size of %" PRIu64 " is not supported", (uint64_t)size);
wp_sp.reset();
} else
m_last_created_watchpoint = wp_sp;
return wp_sp;
}
void Target::RemoveAllowedBreakpoints ()
{
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
if (log)
log->Printf("Target::%s \n", __FUNCTION__);
m_breakpoint_list.RemoveAllowed(true);
m_last_created_breakpoint.reset();
}
void Target::RemoveAllBreakpoints(bool internal_also) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
if (log)
log->Printf("Target::%s (internal_also = %s)\n", __FUNCTION__,
internal_also ? "yes" : "no");
m_breakpoint_list.RemoveAll(true);
if (internal_also)
m_internal_breakpoint_list.RemoveAll(false);
m_last_created_breakpoint.reset();
}
void Target::DisableAllBreakpoints(bool internal_also) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
if (log)
log->Printf("Target::%s (internal_also = %s)\n", __FUNCTION__,
internal_also ? "yes" : "no");
m_breakpoint_list.SetEnabledAll(false);
if (internal_also)
m_internal_breakpoint_list.SetEnabledAll(false);
}
void Target::DisableAllowedBreakpoints() {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
if (log)
log->Printf("Target::%s", __FUNCTION__);
m_breakpoint_list.SetEnabledAllowed(false);
}
void Target::EnableAllBreakpoints(bool internal_also) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
if (log)
log->Printf("Target::%s (internal_also = %s)\n", __FUNCTION__,
internal_also ? "yes" : "no");
m_breakpoint_list.SetEnabledAll(true);
if (internal_also)
m_internal_breakpoint_list.SetEnabledAll(true);
}
void Target::EnableAllowedBreakpoints() {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
if (log)
log->Printf("Target::%s", __FUNCTION__);
m_breakpoint_list.SetEnabledAllowed(true);
}
bool Target::RemoveBreakpointByID(break_id_t break_id) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
if (log)
log->Printf("Target::%s (break_id = %i, internal = %s)\n", __FUNCTION__,
break_id, LLDB_BREAK_ID_IS_INTERNAL(break_id) ? "yes" : "no");
if (DisableBreakpointByID(break_id)) {
if (LLDB_BREAK_ID_IS_INTERNAL(break_id))
m_internal_breakpoint_list.Remove(break_id, false);
else {
if (m_last_created_breakpoint) {
if (m_last_created_breakpoint->GetID() == break_id)
m_last_created_breakpoint.reset();
}
m_breakpoint_list.Remove(break_id, true);
}
return true;
}
return false;
}
bool Target::DisableBreakpointByID(break_id_t break_id) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
if (log)
log->Printf("Target::%s (break_id = %i, internal = %s)\n", __FUNCTION__,
break_id, LLDB_BREAK_ID_IS_INTERNAL(break_id) ? "yes" : "no");
BreakpointSP bp_sp;
if (LLDB_BREAK_ID_IS_INTERNAL(break_id))
bp_sp = m_internal_breakpoint_list.FindBreakpointByID(break_id);
else
bp_sp = m_breakpoint_list.FindBreakpointByID(break_id);
if (bp_sp) {
bp_sp->SetEnabled(false);
return true;
}
return false;
}
bool Target::EnableBreakpointByID(break_id_t break_id) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
if (log)
log->Printf("Target::%s (break_id = %i, internal = %s)\n", __FUNCTION__,
break_id, LLDB_BREAK_ID_IS_INTERNAL(break_id) ? "yes" : "no");
BreakpointSP bp_sp;
if (LLDB_BREAK_ID_IS_INTERNAL(break_id))
bp_sp = m_internal_breakpoint_list.FindBreakpointByID(break_id);
else
bp_sp = m_breakpoint_list.FindBreakpointByID(break_id);
if (bp_sp) {
bp_sp->SetEnabled(true);
return true;
}
return false;
}
Status Target::SerializeBreakpointsToFile(const FileSpec &file,
const BreakpointIDList &bp_ids,
bool append) {
Status error;
if (!file) {
error.SetErrorString("Invalid FileSpec.");
return error;
}
std::string path(file.GetPath());
StructuredData::ObjectSP input_data_sp;
StructuredData::ArraySP break_store_sp;
StructuredData::Array *break_store_ptr = nullptr;
if (append) {
input_data_sp = StructuredData::ParseJSONFromFile(file, error);
if (error.Success()) {
break_store_ptr = input_data_sp->GetAsArray();
if (!break_store_ptr) {
error.SetErrorStringWithFormat(
"Tried to append to invalid input file %s", path.c_str());
return error;
}
}
}
if (!break_store_ptr) {
break_store_sp.reset(new StructuredData::Array());
break_store_ptr = break_store_sp.get();
}
StreamFile out_file(path.c_str(),
File::OpenOptions::eOpenOptionTruncate |
File::OpenOptions::eOpenOptionWrite |
File::OpenOptions::eOpenOptionCanCreate |
File::OpenOptions::eOpenOptionCloseOnExec,
lldb::eFilePermissionsFileDefault);
if (!out_file.GetFile().IsValid()) {
error.SetErrorStringWithFormat("Unable to open output file: %s.",
path.c_str());
return error;
}
std::unique_lock<std::recursive_mutex> lock;
GetBreakpointList().GetListMutex(lock);
if (bp_ids.GetSize() == 0) {
const BreakpointList &breakpoints = GetBreakpointList();
size_t num_breakpoints = breakpoints.GetSize();
for (size_t i = 0; i < num_breakpoints; i++) {
Breakpoint *bp = breakpoints.GetBreakpointAtIndex(i).get();
StructuredData::ObjectSP bkpt_save_sp = bp->SerializeToStructuredData();
// If a breakpoint can't serialize it, just ignore it for now:
if (bkpt_save_sp)
break_store_ptr->AddItem(bkpt_save_sp);
}
} else {
std::unordered_set<lldb::break_id_t> processed_bkpts;
const size_t count = bp_ids.GetSize();
for (size_t i = 0; i < count; ++i) {
BreakpointID cur_bp_id = bp_ids.GetBreakpointIDAtIndex(i);
lldb::break_id_t bp_id = cur_bp_id.GetBreakpointID();
if (bp_id != LLDB_INVALID_BREAK_ID) {
// Only do each breakpoint once:
std::pair<std::unordered_set<lldb::break_id_t>::iterator, bool>
insert_result = processed_bkpts.insert(bp_id);
if (!insert_result.second)
continue;
Breakpoint *bp = GetBreakpointByID(bp_id).get();
StructuredData::ObjectSP bkpt_save_sp = bp->SerializeToStructuredData();
// If the user explicitly asked to serialize a breakpoint, and we
// can't, then raise an error:
if (!bkpt_save_sp) {
error.SetErrorStringWithFormat("Unable to serialize breakpoint %d",
bp_id);
return error;
}
break_store_ptr->AddItem(bkpt_save_sp);
}
}
}
break_store_ptr->Dump(out_file, false);
out_file.PutChar('\n');
return error;
}
Status Target::CreateBreakpointsFromFile(const FileSpec &file,
BreakpointIDList &new_bps) {
std::vector<std::string> no_names;
return CreateBreakpointsFromFile(file, no_names, new_bps);
}
Status Target::CreateBreakpointsFromFile(const FileSpec &file,
std::vector<std::string> &names,
BreakpointIDList &new_bps) {
std::unique_lock<std::recursive_mutex> lock;
GetBreakpointList().GetListMutex(lock);
Status error;
StructuredData::ObjectSP input_data_sp =
StructuredData::ParseJSONFromFile(file, error);
if (!error.Success()) {
return error;
} else if (!input_data_sp || !input_data_sp->IsValid()) {
error.SetErrorStringWithFormat("Invalid JSON from input file: %s.",
file.GetPath().c_str());
return error;
}
StructuredData::Array *bkpt_array = input_data_sp->GetAsArray();
if (!bkpt_array) {
error.SetErrorStringWithFormat(
"Invalid breakpoint data from input file: %s.", file.GetPath().c_str());
return error;
}
size_t num_bkpts = bkpt_array->GetSize();
size_t num_names = names.size();
for (size_t i = 0; i < num_bkpts; i++) {
StructuredData::ObjectSP bkpt_object_sp = bkpt_array->GetItemAtIndex(i);
// Peel off the breakpoint key, and feed the rest to the Breakpoint:
StructuredData::Dictionary *bkpt_dict = bkpt_object_sp->GetAsDictionary();
if (!bkpt_dict) {
error.SetErrorStringWithFormat(
"Invalid breakpoint data for element %zu from input file: %s.", i,
file.GetPath().c_str());
return error;
}
StructuredData::ObjectSP bkpt_data_sp =
bkpt_dict->GetValueForKey(Breakpoint::GetSerializationKey());
if (num_names &&
!Breakpoint::SerializedBreakpointMatchesNames(bkpt_data_sp, names))
continue;
BreakpointSP bkpt_sp =
Breakpoint::CreateFromStructuredData(*this, bkpt_data_sp, error);
if (!error.Success()) {
error.SetErrorStringWithFormat(
"Error restoring breakpoint %zu from %s: %s.", i,
file.GetPath().c_str(), error.AsCString());
return error;
}
new_bps.AddBreakpointID(BreakpointID(bkpt_sp->GetID()));
}
return error;
}
// The flag 'end_to_end', default to true, signifies that the operation is
// performed end to end, for both the debugger and the debuggee.
// Assumption: Caller holds the list mutex lock for m_watchpoint_list for end
// to end operations.
bool Target::RemoveAllWatchpoints(bool end_to_end) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_WATCHPOINTS));
if (log)
log->Printf("Target::%s\n", __FUNCTION__);
if (!end_to_end) {
m_watchpoint_list.RemoveAll(true);
return true;
}
// Otherwise, it's an end to end operation.
if (!ProcessIsValid())
return false;
size_t num_watchpoints = m_watchpoint_list.GetSize();
for (size_t i = 0; i < num_watchpoints; ++i) {
WatchpointSP wp_sp = m_watchpoint_list.GetByIndex(i);
if (!wp_sp)
return false;
Status rc = m_process_sp->DisableWatchpoint(wp_sp.get());
if (rc.Fail())
return false;
}
m_watchpoint_list.RemoveAll(true);
m_last_created_watchpoint.reset();
return true; // Success!
}
// Assumption: Caller holds the list mutex lock for m_watchpoint_list for end
// to end operations.
bool Target::DisableAllWatchpoints(bool end_to_end) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_WATCHPOINTS));
if (log)
log->Printf("Target::%s\n", __FUNCTION__);
if (!end_to_end) {
m_watchpoint_list.SetEnabledAll(false);
return true;
}
// Otherwise, it's an end to end operation.
if (!ProcessIsValid())
return false;
size_t num_watchpoints = m_watchpoint_list.GetSize();
for (size_t i = 0; i < num_watchpoints; ++i) {
WatchpointSP wp_sp = m_watchpoint_list.GetByIndex(i);
if (!wp_sp)
return false;
Status rc = m_process_sp->DisableWatchpoint(wp_sp.get());
if (rc.Fail())
return false;
}
return true; // Success!
}
// Assumption: Caller holds the list mutex lock for m_watchpoint_list for end
// to end operations.
bool Target::EnableAllWatchpoints(bool end_to_end) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_WATCHPOINTS));
if (log)
log->Printf("Target::%s\n", __FUNCTION__);
if (!end_to_end) {
m_watchpoint_list.SetEnabledAll(true);
return true;
}
// Otherwise, it's an end to end operation.
if (!ProcessIsValid())
return false;
size_t num_watchpoints = m_watchpoint_list.GetSize();
for (size_t i = 0; i < num_watchpoints; ++i) {
WatchpointSP wp_sp = m_watchpoint_list.GetByIndex(i);
if (!wp_sp)
return false;
Status rc = m_process_sp->EnableWatchpoint(wp_sp.get());
if (rc.Fail())
return false;
}
return true; // Success!
}
// Assumption: Caller holds the list mutex lock for m_watchpoint_list.
bool Target::ClearAllWatchpointHitCounts() {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_WATCHPOINTS));
if (log)
log->Printf("Target::%s\n", __FUNCTION__);
size_t num_watchpoints = m_watchpoint_list.GetSize();
for (size_t i = 0; i < num_watchpoints; ++i) {
WatchpointSP wp_sp = m_watchpoint_list.GetByIndex(i);
if (!wp_sp)
return false;
wp_sp->ResetHitCount();
}
return true; // Success!
}
// Assumption: Caller holds the list mutex lock for m_watchpoint_list.
bool Target::ClearAllWatchpointHistoricValues() {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_WATCHPOINTS));
if (log)
log->Printf("Target::%s\n", __FUNCTION__);
size_t num_watchpoints = m_watchpoint_list.GetSize();
for (size_t i = 0; i < num_watchpoints; ++i) {
WatchpointSP wp_sp = m_watchpoint_list.GetByIndex(i);
if (!wp_sp)
return false;
wp_sp->ResetHistoricValues();
}
return true; // Success!
}
// Assumption: Caller holds the list mutex lock for m_watchpoint_list during
// these operations.
bool Target::IgnoreAllWatchpoints(uint32_t ignore_count) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_WATCHPOINTS));
if (log)
log->Printf("Target::%s\n", __FUNCTION__);
if (!ProcessIsValid())
return false;
size_t num_watchpoints = m_watchpoint_list.GetSize();
for (size_t i = 0; i < num_watchpoints; ++i) {
WatchpointSP wp_sp = m_watchpoint_list.GetByIndex(i);
if (!wp_sp)
return false;
wp_sp->SetIgnoreCount(ignore_count);
}
return true; // Success!
}
// Assumption: Caller holds the list mutex lock for m_watchpoint_list.
bool Target::DisableWatchpointByID(lldb::watch_id_t watch_id) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_WATCHPOINTS));
if (log)
log->Printf("Target::%s (watch_id = %i)\n", __FUNCTION__, watch_id);
if (!ProcessIsValid())
return false;
WatchpointSP wp_sp = m_watchpoint_list.FindByID(watch_id);
if (wp_sp) {
Status rc = m_process_sp->DisableWatchpoint(wp_sp.get());
if (rc.Success())
return true;
// Else, fallthrough.
}
return false;
}
// Assumption: Caller holds the list mutex lock for m_watchpoint_list.
bool Target::EnableWatchpointByID(lldb::watch_id_t watch_id) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_WATCHPOINTS));
if (log)
log->Printf("Target::%s (watch_id = %i)\n", __FUNCTION__, watch_id);
if (!ProcessIsValid())
return false;
WatchpointSP wp_sp = m_watchpoint_list.FindByID(watch_id);
if (wp_sp) {
Status rc = m_process_sp->EnableWatchpoint(wp_sp.get());
if (rc.Success())
return true;
// Else, fallthrough.
}
return false;
}
// Assumption: Caller holds the list mutex lock for m_watchpoint_list.
bool Target::RemoveWatchpointByID(lldb::watch_id_t watch_id) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_WATCHPOINTS));
if (log)
log->Printf("Target::%s (watch_id = %i)\n", __FUNCTION__, watch_id);
WatchpointSP watch_to_remove_sp = m_watchpoint_list.FindByID(watch_id);
if (watch_to_remove_sp == m_last_created_watchpoint)
m_last_created_watchpoint.reset();
if (DisableWatchpointByID(watch_id)) {
m_watchpoint_list.Remove(watch_id, true);
return true;
}
return false;
}
// Assumption: Caller holds the list mutex lock for m_watchpoint_list.
bool Target::IgnoreWatchpointByID(lldb::watch_id_t watch_id,
uint32_t ignore_count) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_WATCHPOINTS));
if (log)
log->Printf("Target::%s (watch_id = %i)\n", __FUNCTION__, watch_id);
if (!ProcessIsValid())
return false;
WatchpointSP wp_sp = m_watchpoint_list.FindByID(watch_id);
if (wp_sp) {
wp_sp->SetIgnoreCount(ignore_count);
return true;
}
return false;
}
ModuleSP Target::GetExecutableModule() {
// search for the first executable in the module list
for (size_t i = 0; i < m_images.GetSize(); ++i) {
ModuleSP module_sp = m_images.GetModuleAtIndex(i);
lldb_private::ObjectFile *obj = module_sp->GetObjectFile();
if (obj == nullptr)
continue;
if (obj->GetType() == ObjectFile::Type::eTypeExecutable)
return module_sp;
}
// as fall back return the first module loaded
return m_images.GetModuleAtIndex(0);
}
Module *Target::GetExecutableModulePointer() {
return GetExecutableModule().get();
}
static void LoadScriptingResourceForModule(const ModuleSP &module_sp,
Target *target) {
Status error;
StreamString feedback_stream;
if (module_sp &&
!module_sp->LoadScriptingResourceInTarget(target, error,
&feedback_stream)) {
if (error.AsCString())
target->GetDebugger().GetErrorFile()->Printf(
"unable to load scripting data for module %s - error reported was "
"%s\n",
module_sp->GetFileSpec().GetFileNameStrippingExtension().GetCString(),
error.AsCString());
}
if (feedback_stream.GetSize())
target->GetDebugger().GetErrorFile()->Printf("%s\n",
feedback_stream.GetData());
}
void Target::ClearModules(bool delete_locations) {
ModulesDidUnload(m_images, delete_locations);
m_section_load_history.Clear();
m_images.Clear();
m_scratch_type_system_map.Clear();
m_ast_importer_sp.reset();
}
void Target::DidExec() {
// When a process exec's we need to know about it so we can do some cleanup.
m_breakpoint_list.RemoveInvalidLocations(m_arch.GetSpec());
m_internal_breakpoint_list.RemoveInvalidLocations(m_arch.GetSpec());
}
void Target::SetExecutableModule(ModuleSP &executable_sp,
bool get_dependent_files) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_TARGET));
ClearModules(false);
if (executable_sp) {
static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
Timer scoped_timer(func_cat,
"Target::SetExecutableModule (executable = '%s')",
executable_sp->GetFileSpec().GetPath().c_str());
m_images.Append(executable_sp); // The first image is our executable file
// If we haven't set an architecture yet, reset our architecture based on
// what we found in the executable module.
if (!m_arch.GetSpec().IsValid()) {
m_arch = executable_sp->GetArchitecture();
LLDB_LOG(log,
"setting architecture to {0} ({1}) based on executable file",
m_arch.GetSpec().GetArchitectureName(),
m_arch.GetSpec().GetTriple().getTriple());
}
FileSpecList dependent_files;
ObjectFile *executable_objfile = executable_sp->GetObjectFile();
if (executable_objfile && get_dependent_files) {
executable_objfile->GetDependentModules(dependent_files);
for (uint32_t i = 0; i < dependent_files.GetSize(); i++) {
FileSpec dependent_file_spec(
dependent_files.GetFileSpecPointerAtIndex(i));
FileSpec platform_dependent_file_spec;
if (m_platform_sp)
m_platform_sp->GetFileWithUUID(dependent_file_spec, nullptr,
platform_dependent_file_spec);
else
platform_dependent_file_spec = dependent_file_spec;
ModuleSpec module_spec(platform_dependent_file_spec, m_arch.GetSpec());
ModuleSP image_module_sp(GetSharedModule(module_spec));
if (image_module_sp) {
ObjectFile *objfile = image_module_sp->GetObjectFile();
if (objfile)
objfile->GetDependentModules(dependent_files);
}
}
}
}
}
bool Target::SetArchitecture(const ArchSpec &arch_spec) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_TARGET));
bool missing_local_arch = !m_arch.GetSpec().IsValid();
bool replace_local_arch = true;
bool compatible_local_arch = false;
ArchSpec other(arch_spec);
if (!missing_local_arch) {
if (m_arch.GetSpec().IsCompatibleMatch(arch_spec)) {
other.MergeFrom(m_arch.GetSpec());
if (m_arch.GetSpec().IsCompatibleMatch(other)) {
compatible_local_arch = true;
bool arch_changed, vendor_changed, os_changed, os_ver_changed,
env_changed;
m_arch.GetSpec().PiecewiseTripleCompare(other, arch_changed, vendor_changed,
os_changed, os_ver_changed, env_changed);
if (!arch_changed && !vendor_changed && !os_changed && !env_changed)
replace_local_arch = false;
}
}
}
if (compatible_local_arch || missing_local_arch) {
// If we haven't got a valid arch spec, or the architectures are compatible
// update the architecture, unless the one we already have is more
// specified
if (replace_local_arch)
m_arch = other;
LLDB_LOG(log, "set architecture to {0} ({1})",
m_arch.GetSpec().GetArchitectureName(),
m_arch.GetSpec().GetTriple().getTriple());
return true;
}
// If we have an executable file, try to reset the executable to the desired
// architecture
if (log)
log->Printf("Target::SetArchitecture changing architecture to %s (%s)",
arch_spec.GetArchitectureName(),
arch_spec.GetTriple().getTriple().c_str());
m_arch = other;
ModuleSP executable_sp = GetExecutableModule();
ClearModules(true);
// Need to do something about unsetting breakpoints.
if (executable_sp) {
if (log)
log->Printf("Target::SetArchitecture Trying to select executable file "
"architecture %s (%s)",
arch_spec.GetArchitectureName(),
arch_spec.GetTriple().getTriple().c_str());
ModuleSpec module_spec(executable_sp->GetFileSpec(), other);
Status error = ModuleList::GetSharedModule(module_spec, executable_sp,
&GetExecutableSearchPaths(),
nullptr, nullptr);
if (!error.Fail() && executable_sp) {
SetExecutableModule(executable_sp, true);
return true;
}
}
return false;
}
bool Target::MergeArchitecture(const ArchSpec &arch_spec) {
if (arch_spec.IsValid()) {
if (m_arch.GetSpec().IsCompatibleMatch(arch_spec)) {
// The current target arch is compatible with "arch_spec", see if we can
// improve our current architecture using bits from "arch_spec"
// Merge bits from arch_spec into "merged_arch" and set our architecture
ArchSpec merged_arch(m_arch.GetSpec());
merged_arch.MergeFrom(arch_spec);
return SetArchitecture(merged_arch);
} else {
// The new architecture is different, we just need to replace it
return SetArchitecture(arch_spec);
}
}
return false;
}
void Target::WillClearList(const ModuleList &module_list) {}
void Target::ModuleAdded(const ModuleList &module_list,
const ModuleSP &module_sp) {
// A module is being added to this target for the first time
if (m_valid) {
ModuleList my_module_list;
my_module_list.Append(module_sp);
LoadScriptingResourceForModule(module_sp, this);
ModulesDidLoad(my_module_list);
}
}
void Target::ModuleRemoved(const ModuleList &module_list,
const ModuleSP &module_sp) {
// A module is being removed from this target.
if (m_valid) {
ModuleList my_module_list;
my_module_list.Append(module_sp);
ModulesDidUnload(my_module_list, false);
}
}
void Target::ModuleUpdated(const ModuleList &module_list,
const ModuleSP &old_module_sp,
const ModuleSP &new_module_sp) {
// A module is replacing an already added module
if (m_valid) {
m_breakpoint_list.UpdateBreakpointsWhenModuleIsReplaced(old_module_sp,
new_module_sp);
m_internal_breakpoint_list.UpdateBreakpointsWhenModuleIsReplaced(
old_module_sp, new_module_sp);
}
}
void Target::ModulesDidLoad(ModuleList &module_list) {
if (m_valid && module_list.GetSize()) {
m_breakpoint_list.UpdateBreakpoints(module_list, true, false);
m_internal_breakpoint_list.UpdateBreakpoints(module_list, true, false);
if (m_process_sp) {
m_process_sp->ModulesDidLoad(module_list);
}
BroadcastEvent(eBroadcastBitModulesLoaded,
new TargetEventData(this->shared_from_this(), module_list));
}
}
void Target::SymbolsDidLoad(ModuleList &module_list) {
if (m_valid && module_list.GetSize()) {
if (m_process_sp) {
LanguageRuntime *runtime =
m_process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
if (runtime) {
ObjCLanguageRuntime *objc_runtime = (ObjCLanguageRuntime *)runtime;
objc_runtime->SymbolsDidLoad(module_list);
}
}
m_breakpoint_list.UpdateBreakpoints(module_list, true, false);
m_internal_breakpoint_list.UpdateBreakpoints(module_list, true, false);
BroadcastEvent(eBroadcastBitSymbolsLoaded,
new TargetEventData(this->shared_from_this(), module_list));
}
}
void Target::ModulesDidUnload(ModuleList &module_list, bool delete_locations) {
if (m_valid && module_list.GetSize()) {
UnloadModuleSections(module_list);
m_breakpoint_list.UpdateBreakpoints(module_list, false, delete_locations);
m_internal_breakpoint_list.UpdateBreakpoints(module_list, false,
delete_locations);
BroadcastEvent(eBroadcastBitModulesUnloaded,
new TargetEventData(this->shared_from_this(), module_list));
}
}
bool Target::ModuleIsExcludedForUnconstrainedSearches(
const FileSpec &module_file_spec) {
if (GetBreakpointsConsultPlatformAvoidList()) {
ModuleList matchingModules;
ModuleSpec module_spec(module_file_spec);
size_t num_modules = GetImages().FindModules(module_spec, matchingModules);
// If there is more than one module for this file spec, only return true if
// ALL the modules are on the
// black list.
if (num_modules > 0) {
for (size_t i = 0; i < num_modules; i++) {
if (!ModuleIsExcludedForUnconstrainedSearches(
matchingModules.GetModuleAtIndex(i)))
return false;
}
return true;
}
}
return false;
}
bool Target::ModuleIsExcludedForUnconstrainedSearches(
const lldb::ModuleSP &module_sp) {
if (GetBreakpointsConsultPlatformAvoidList()) {
if (m_platform_sp)
return m_platform_sp->ModuleIsExcludedForUnconstrainedSearches(*this,
module_sp);
}
return false;
}
size_t Target::ReadMemoryFromFileCache(const Address &addr, void *dst,
size_t dst_len, Status &error) {
SectionSP section_sp(addr.GetSection());
if (section_sp) {
// If the contents of this section are encrypted, the on-disk file is
// unusable. Read only from live memory.
if (section_sp->IsEncrypted()) {
error.SetErrorString("section is encrypted");
return 0;
}
ModuleSP module_sp(section_sp->GetModule());
if (module_sp) {
ObjectFile *objfile = section_sp->GetModule()->GetObjectFile();
if (objfile) {
size_t bytes_read = objfile->ReadSectionData(
section_sp.get(), addr.GetOffset(), dst, dst_len);
if (bytes_read > 0)
return bytes_read;
else
error.SetErrorStringWithFormat("error reading data from section %s",
section_sp->GetName().GetCString());
} else
error.SetErrorString("address isn't from a object file");
} else
error.SetErrorString("address isn't in a module");
} else
error.SetErrorString("address doesn't contain a section that points to a "
"section in a object file");
return 0;
}
size_t Target::ReadMemory(const Address &addr, bool prefer_file_cache,
void *dst, size_t dst_len, Status &error,
lldb::addr_t *load_addr_ptr) {
error.Clear();
// if we end up reading this from process memory, we will fill this with the
// actual load address
if (load_addr_ptr)
*load_addr_ptr = LLDB_INVALID_ADDRESS;
size_t bytes_read = 0;
addr_t load_addr = LLDB_INVALID_ADDRESS;
addr_t file_addr = LLDB_INVALID_ADDRESS;
Address resolved_addr;
if (!addr.IsSectionOffset()) {
SectionLoadList &section_load_list = GetSectionLoadList();
if (section_load_list.IsEmpty()) {
// No sections are loaded, so we must assume we are not running yet and
// anything we are given is a file address.
file_addr = addr.GetOffset(); // "addr" doesn't have a section, so its
// offset is the file address
m_images.ResolveFileAddress(file_addr, resolved_addr);
} else {
// We have at least one section loaded. This can be because we have
// manually loaded some sections with "target modules load ..." or
// because we have have a live process that has sections loaded through
// the dynamic loader
load_addr = addr.GetOffset(); // "addr" doesn't have a section, so its
// offset is the load address
section_load_list.ResolveLoadAddress(load_addr, resolved_addr);
}
}
if (!resolved_addr.IsValid())
resolved_addr = addr;
if (prefer_file_cache) {
bytes_read = ReadMemoryFromFileCache(resolved_addr, dst, dst_len, error);
if (bytes_read > 0)
return bytes_read;
}
if (ProcessIsValid()) {
if (load_addr == LLDB_INVALID_ADDRESS)
load_addr = resolved_addr.GetLoadAddress(this);
if (load_addr == LLDB_INVALID_ADDRESS) {
ModuleSP addr_module_sp(resolved_addr.GetModule());
if (addr_module_sp && addr_module_sp->GetFileSpec())
error.SetErrorStringWithFormatv(
"{0:F}[{1:x+}] can't be resolved, {0:F} is not currently loaded",
addr_module_sp->GetFileSpec(), resolved_addr.GetFileAddress());
else
error.SetErrorStringWithFormat("0x%" PRIx64 " can't be resolved",
resolved_addr.GetFileAddress());
} else {
bytes_read = m_process_sp->ReadMemory(load_addr, dst, dst_len, error);
if (bytes_read != dst_len) {
if (error.Success()) {
if (bytes_read == 0)
error.SetErrorStringWithFormat(
"read memory from 0x%" PRIx64 " failed", load_addr);
else
error.SetErrorStringWithFormat(
"only %" PRIu64 " of %" PRIu64
" bytes were read from memory at 0x%" PRIx64,
(uint64_t)bytes_read, (uint64_t)dst_len, load_addr);
}
}
if (bytes_read) {
if (load_addr_ptr)
*load_addr_ptr = load_addr;
return bytes_read;
}
// If the address is not section offset we have an address that doesn't
// resolve to any address in any currently loaded shared libraries and we
// failed to read memory so there isn't anything more we can do. If it is
// section offset, we might be able to read cached memory from the object
// file.
if (!resolved_addr.IsSectionOffset())
return 0;
}
}
if (!prefer_file_cache && resolved_addr.IsSectionOffset()) {
// If we didn't already try and read from the object file cache, then try
// it after failing to read from the process.
return ReadMemoryFromFileCache(resolved_addr, dst, dst_len, error);
}
return 0;
}
size_t Target::ReadCStringFromMemory(const Address &addr, std::string &out_str,
Status &error) {
char buf[256];
out_str.clear();
addr_t curr_addr = addr.GetLoadAddress(this);
Address address(addr);
while (1) {
size_t length = ReadCStringFromMemory(address, buf, sizeof(buf), error);
if (length == 0)
break;
out_str.append(buf, length);
// If we got "length - 1" bytes, we didn't get the whole C string, we need
// to read some more characters
if (length == sizeof(buf) - 1)
curr_addr += length;
else
break;
address = Address(curr_addr);
}
return out_str.size();
}
size_t Target::ReadCStringFromMemory(const Address &addr, char *dst,
size_t dst_max_len, Status &result_error) {
size_t total_cstr_len = 0;
if (dst && dst_max_len) {
result_error.Clear();
// NULL out everything just to be safe
memset(dst, 0, dst_max_len);
Status error;
addr_t curr_addr = addr.GetLoadAddress(this);
Address address(addr);
// We could call m_process_sp->GetMemoryCacheLineSize() but I don't think
// this really needs to be tied to the memory cache subsystem's cache line
// size, so leave this as a fixed constant.
const size_t cache_line_size = 512;
size_t bytes_left = dst_max_len - 1;
char *curr_dst = dst;
while (bytes_left > 0) {
addr_t cache_line_bytes_left =
cache_line_size - (curr_addr % cache_line_size);
addr_t bytes_to_read =
std::min<addr_t>(bytes_left, cache_line_bytes_left);
size_t bytes_read =
ReadMemory(address, false, curr_dst, bytes_to_read, error);
if (bytes_read == 0) {
result_error = error;
dst[total_cstr_len] = '\0';
break;
}
const size_t len = strlen(curr_dst);
total_cstr_len += len;
if (len < bytes_to_read)
break;
curr_dst += bytes_read;
curr_addr += bytes_read;
bytes_left -= bytes_read;
address = Address(curr_addr);
}
} else {
if (dst == nullptr)
result_error.SetErrorString("invalid arguments");
else
result_error.Clear();
}
return total_cstr_len;
}
size_t Target::ReadScalarIntegerFromMemory(const Address &addr,
bool prefer_file_cache,
uint32_t byte_size, bool is_signed,
Scalar &scalar, Status &error) {
uint64_t uval;
if (byte_size <= sizeof(uval)) {
size_t bytes_read =
ReadMemory(addr, prefer_file_cache, &uval, byte_size, error);
if (bytes_read == byte_size) {
DataExtractor data(&uval, sizeof(uval), m_arch.GetSpec().GetByteOrder(),
m_arch.GetSpec().GetAddressByteSize());
lldb::offset_t offset = 0;
if (byte_size <= 4)
scalar = data.GetMaxU32(&offset, byte_size);
else
scalar = data.GetMaxU64(&offset, byte_size);
if (is_signed)
scalar.SignExtend(byte_size * 8);
return bytes_read;
}
} else {
error.SetErrorStringWithFormat(
"byte size of %u is too large for integer scalar type", byte_size);
}
return 0;
}
uint64_t Target::ReadUnsignedIntegerFromMemory(const Address &addr,
bool prefer_file_cache,
size_t integer_byte_size,
uint64_t fail_value,
Status &error) {
Scalar scalar;
if (ReadScalarIntegerFromMemory(addr, prefer_file_cache, integer_byte_size,
false, scalar, error))
return scalar.ULongLong(fail_value);
return fail_value;
}
bool Target::ReadPointerFromMemory(const Address &addr, bool prefer_file_cache,
Status &error, Address &pointer_addr) {
Scalar scalar;
if (ReadScalarIntegerFromMemory(addr, prefer_file_cache,
m_arch.GetSpec().GetAddressByteSize(), false, scalar,
error)) {
addr_t pointer_vm_addr = scalar.ULongLong(LLDB_INVALID_ADDRESS);
if (pointer_vm_addr != LLDB_INVALID_ADDRESS) {
SectionLoadList &section_load_list = GetSectionLoadList();
if (section_load_list.IsEmpty()) {
// No sections are loaded, so we must assume we are not running yet and
// anything we are given is a file address.
m_images.ResolveFileAddress(pointer_vm_addr, pointer_addr);
} else {
// We have at least one section loaded. This can be because we have
// manually loaded some sections with "target modules load ..." or
// because we have have a live process that has sections loaded through
// the dynamic loader
section_load_list.ResolveLoadAddress(pointer_vm_addr, pointer_addr);
}
// We weren't able to resolve the pointer value, so just return an
// address with no section
if (!pointer_addr.IsValid())
pointer_addr.SetOffset(pointer_vm_addr);
return true;
}
}
return false;
}
ModuleSP Target::GetSharedModule(const ModuleSpec &module_spec,
Status *error_ptr) {
ModuleSP module_sp;
Status error;
// First see if we already have this module in our module list. If we do,
// then we're done, we don't need to consult the shared modules list. But
// only do this if we are passed a UUID.
if (module_spec.GetUUID().IsValid())
module_sp = m_images.FindFirstModule(module_spec);
if (!module_sp) {
ModuleSP old_module_sp; // This will get filled in if we have a new version
// of the library
bool did_create_module = false;
// If there are image search path entries, try to use them first to acquire
// a suitable image.
if (m_image_search_paths.GetSize()) {
ModuleSpec transformed_spec(module_spec);
if (m_image_search_paths.RemapPath(
module_spec.GetFileSpec().GetDirectory(),
transformed_spec.GetFileSpec().GetDirectory())) {
transformed_spec.GetFileSpec().GetFilename() =
module_spec.GetFileSpec().GetFilename();
error = ModuleList::GetSharedModule(transformed_spec, module_sp,
&GetExecutableSearchPaths(),
&old_module_sp, &did_create_module);
}
}
if (!module_sp) {
// If we have a UUID, we can check our global shared module list in case
// we already have it. If we don't have a valid UUID, then we can't since
// the path in "module_spec" will be a platform path, and we will need to
// let the platform find that file. For example, we could be asking for
// "/usr/lib/dyld" and if we do not have a UUID, we don't want to pick
// the local copy of "/usr/lib/dyld" since our platform could be a remote
// platform that has its own "/usr/lib/dyld" in an SDK or in a local file
// cache.
if (module_spec.GetUUID().IsValid()) {
// We have a UUID, it is OK to check the global module list...
error = ModuleList::GetSharedModule(module_spec, module_sp,
&GetExecutableSearchPaths(),
&old_module_sp, &did_create_module);
}
if (!module_sp) {
// The platform is responsible for finding and caching an appropriate
// module in the shared module cache.
if (m_platform_sp) {
error = m_platform_sp->GetSharedModule(
module_spec, m_process_sp.get(), module_sp,
&GetExecutableSearchPaths(), &old_module_sp, &did_create_module);
} else {
error.SetErrorString("no platform is currently set");
}
}
}
// We found a module that wasn't in our target list. Let's make sure that
// there wasn't an equivalent module in the list already, and if there was,
// let's remove it.
if (module_sp) {
ObjectFile *objfile = module_sp->GetObjectFile();
if (objfile) {
switch (objfile->GetType()) {
case ObjectFile::eTypeCoreFile: /// A core file that has a checkpoint of
/// a program's execution state
case ObjectFile::eTypeExecutable: /// A normal executable
case ObjectFile::eTypeDynamicLinker: /// The platform's dynamic linker
/// executable
case ObjectFile::eTypeObjectFile: /// An intermediate object file
case ObjectFile::eTypeSharedLibrary: /// A shared library that can be
/// used during execution
break;
case ObjectFile::eTypeDebugInfo: /// An object file that contains only
/// debug information
if (error_ptr)
error_ptr->SetErrorString("debug info files aren't valid target "
"modules, please specify an executable");
return ModuleSP();
case ObjectFile::eTypeStubLibrary: /// A library that can be linked
/// against but not used for
/// execution
if (error_ptr)
error_ptr->SetErrorString("stub libraries aren't valid target "
"modules, please specify an executable");
return ModuleSP();
default:
if (error_ptr)
error_ptr->SetErrorString(
"unsupported file type, please specify an executable");
return ModuleSP();
}
// GetSharedModule is not guaranteed to find the old shared module, for
// instance in the common case where you pass in the UUID, it is only
// going to find the one module matching the UUID. In fact, it has no
// good way to know what the "old module" relevant to this target is,
// since there might be many copies of a module with this file spec in
// various running debug sessions, but only one of them will belong to
// this target. So let's remove the UUID from the module list, and look
// in the target's module list. Only do this if there is SOMETHING else
// in the module spec...
if (!old_module_sp) {
if (module_spec.GetUUID().IsValid() &&
!module_spec.GetFileSpec().GetFilename().IsEmpty() &&
!module_spec.GetFileSpec().GetDirectory().IsEmpty()) {
ModuleSpec module_spec_copy(module_spec.GetFileSpec());
module_spec_copy.GetUUID().Clear();
ModuleList found_modules;
size_t num_found =
m_images.FindModules(module_spec_copy, found_modules);
if (num_found == 1) {
old_module_sp = found_modules.GetModuleAtIndex(0);
}
}
}
// Preload symbols outside of any lock, so hopefully we can do this for
// each library in parallel.
if (GetPreloadSymbols())
module_sp->PreloadSymbols();
if (old_module_sp &&
m_images.GetIndexForModule(old_module_sp.get()) !=
LLDB_INVALID_INDEX32) {
m_images.ReplaceModule(old_module_sp, module_sp);
Module *old_module_ptr = old_module_sp.get();
old_module_sp.reset();
ModuleList::RemoveSharedModuleIfOrphaned(old_module_ptr);
} else
m_images.Append(module_sp);
} else
module_sp.reset();
}
}
if (error_ptr)
*error_ptr = error;
return module_sp;
}
TargetSP Target::CalculateTarget() { return shared_from_this(); }
ProcessSP Target::CalculateProcess() { return m_process_sp; }
ThreadSP Target::CalculateThread() { return ThreadSP(); }
StackFrameSP Target::CalculateStackFrame() { return StackFrameSP(); }
void Target::CalculateExecutionContext(ExecutionContext &exe_ctx) {
exe_ctx.Clear();
exe_ctx.SetTargetPtr(this);
}
PathMappingList &Target::GetImageSearchPathList() {
return m_image_search_paths;
}
void Target::ImageSearchPathsChanged(const PathMappingList &path_list,
void *baton) {
Target *target = (Target *)baton;
ModuleSP exe_module_sp(target->GetExecutableModule());
if (exe_module_sp)
target->SetExecutableModule(exe_module_sp, true);
}
TypeSystem *Target::GetScratchTypeSystemForLanguage(Status *error,
lldb::LanguageType language,
bool create_on_demand) {
if (!m_valid)
return nullptr;
if (error) {
error->Clear();
}
if (language == eLanguageTypeMipsAssembler // GNU AS and LLVM use it for all
// assembly code
|| language == eLanguageTypeUnknown) {
std::set<lldb::LanguageType> languages_for_types;
std::set<lldb::LanguageType> languages_for_expressions;
Language::GetLanguagesSupportingTypeSystems(languages_for_types,
languages_for_expressions);
if (languages_for_expressions.count(eLanguageTypeC)) {
language = eLanguageTypeC; // LLDB's default. Override by setting the
// target language.
} else {
if (languages_for_expressions.empty()) {
return nullptr;
} else {
language = *languages_for_expressions.begin();
}
}
}
return m_scratch_type_system_map.GetTypeSystemForLanguage(language, this,
create_on_demand);
}
PersistentExpressionState *
Target::GetPersistentExpressionStateForLanguage(lldb::LanguageType language) {
TypeSystem *type_system =
GetScratchTypeSystemForLanguage(nullptr, language, true);
if (type_system) {
return type_system->GetPersistentExpressionState();
} else {
return nullptr;
}
}
UserExpression *Target::GetUserExpressionForLanguage(
llvm::StringRef expr, llvm::StringRef prefix, lldb::LanguageType language,
Expression::ResultType desired_type,
const EvaluateExpressionOptions &options, Status &error) {
Status type_system_error;
TypeSystem *type_system =
GetScratchTypeSystemForLanguage(&type_system_error, language);
UserExpression *user_expr = nullptr;
if (!type_system) {
error.SetErrorStringWithFormat(
"Could not find type system for language %s: %s",
Language::GetNameForLanguageType(language),
type_system_error.AsCString());
return nullptr;
}
user_expr = type_system->GetUserExpression(expr, prefix, language,
desired_type, options);
if (!user_expr)
error.SetErrorStringWithFormat(
"Could not create an expression for language %s",
Language::GetNameForLanguageType(language));
return user_expr;
}
FunctionCaller *Target::GetFunctionCallerForLanguage(
lldb::LanguageType language, const CompilerType &return_type,
const Address &function_address, const ValueList &arg_value_list,
const char *name, Status &error) {
Status type_system_error;
TypeSystem *type_system =
GetScratchTypeSystemForLanguage(&type_system_error, language);
FunctionCaller *persistent_fn = nullptr;
if (!type_system) {
error.SetErrorStringWithFormat(
"Could not find type system for language %s: %s",
Language::GetNameForLanguageType(language),
type_system_error.AsCString());
return persistent_fn;
}
persistent_fn = type_system->GetFunctionCaller(return_type, function_address,
arg_value_list, name);
if (!persistent_fn)
error.SetErrorStringWithFormat(
"Could not create an expression for language %s",
Language::GetNameForLanguageType(language));
return persistent_fn;
}
UtilityFunction *
Target::GetUtilityFunctionForLanguage(const char *text,
lldb::LanguageType language,
const char *name, Status &error) {
Status type_system_error;
TypeSystem *type_system =
GetScratchTypeSystemForLanguage(&type_system_error, language);
UtilityFunction *utility_fn = nullptr;
if (!type_system) {
error.SetErrorStringWithFormat(
"Could not find type system for language %s: %s",
Language::GetNameForLanguageType(language),
type_system_error.AsCString());
return utility_fn;
}
utility_fn = type_system->GetUtilityFunction(text, name);
if (!utility_fn)
error.SetErrorStringWithFormat(
"Could not create an expression for language %s",
Language::GetNameForLanguageType(language));
return utility_fn;
}
ClangASTContext *Target::GetScratchClangASTContext(bool create_on_demand) {
if (m_valid) {
if (TypeSystem *type_system = GetScratchTypeSystemForLanguage(
nullptr, eLanguageTypeC, create_on_demand))
return llvm::dyn_cast<ClangASTContext>(type_system);
}
return nullptr;
}
ClangASTImporterSP Target::GetClangASTImporter() {
if (m_valid) {
if (!m_ast_importer_sp) {
m_ast_importer_sp.reset(new ClangASTImporter());
}
return m_ast_importer_sp;
}
return ClangASTImporterSP();
}
void Target::SettingsInitialize() { Process::SettingsInitialize(); }
void Target::SettingsTerminate() { Process::SettingsTerminate(); }
FileSpecList Target::GetDefaultExecutableSearchPaths() {
TargetPropertiesSP properties_sp(Target::GetGlobalProperties());
if (properties_sp)
return properties_sp->GetExecutableSearchPaths();
return FileSpecList();
}
FileSpecList Target::GetDefaultDebugFileSearchPaths() {
TargetPropertiesSP properties_sp(Target::GetGlobalProperties());
if (properties_sp)
return properties_sp->GetDebugFileSearchPaths();
return FileSpecList();
}
FileSpecList Target::GetDefaultClangModuleSearchPaths() {
TargetPropertiesSP properties_sp(Target::GetGlobalProperties());
if (properties_sp)
return properties_sp->GetClangModuleSearchPaths();
return FileSpecList();
}
ArchSpec Target::GetDefaultArchitecture() {
TargetPropertiesSP properties_sp(Target::GetGlobalProperties());
if (properties_sp)
return properties_sp->GetDefaultArchitecture();
return ArchSpec();
}
void Target::SetDefaultArchitecture(const ArchSpec &arch) {
TargetPropertiesSP properties_sp(Target::GetGlobalProperties());
if (properties_sp) {
LogIfAnyCategoriesSet(
LIBLLDB_LOG_TARGET, "Target::SetDefaultArchitecture setting target's "
"default architecture to %s (%s)",
arch.GetArchitectureName(), arch.GetTriple().getTriple().c_str());
return properties_sp->SetDefaultArchitecture(arch);
}
}
Target *Target::GetTargetFromContexts(const ExecutionContext *exe_ctx_ptr,
const SymbolContext *sc_ptr) {
// The target can either exist in the "process" of ExecutionContext, or in
// the "target_sp" member of SymbolContext. This accessor helper function
// will get the target from one of these locations.
Target *target = nullptr;
if (sc_ptr != nullptr)
target = sc_ptr->target_sp.get();
if (target == nullptr && exe_ctx_ptr)
target = exe_ctx_ptr->GetTargetPtr();
return target;
}
ExpressionResults Target::EvaluateExpression(
llvm::StringRef expr, ExecutionContextScope *exe_scope,
lldb::ValueObjectSP &result_valobj_sp,
const EvaluateExpressionOptions &options, std::string *fixed_expression) {
result_valobj_sp.reset();
ExpressionResults execution_results = eExpressionSetupError;
if (expr.empty())
return execution_results;
// We shouldn't run stop hooks in expressions. Be sure to reset this if you
// return anywhere within this function.
bool old_suppress_value = m_suppress_stop_hooks;
m_suppress_stop_hooks = true;
ExecutionContext exe_ctx;
if (exe_scope) {
exe_scope->CalculateExecutionContext(exe_ctx);
} else if (m_process_sp) {
m_process_sp->CalculateExecutionContext(exe_ctx);
} else {
CalculateExecutionContext(exe_ctx);
}
// Make sure we aren't just trying to see the value of a persistent variable
// (something like "$0")
lldb::ExpressionVariableSP persistent_var_sp;
// Only check for persistent variables the expression starts with a '$'
if (expr[0] == '$')
persistent_var_sp = GetScratchTypeSystemForLanguage(nullptr, eLanguageTypeC)
->GetPersistentExpressionState()
->GetVariable(expr);
if (persistent_var_sp) {
result_valobj_sp = persistent_var_sp->GetValueObject();
execution_results = eExpressionCompleted;
} else {
llvm::StringRef prefix = GetExpressionPrefixContents();
Status error;
execution_results = UserExpression::Evaluate(exe_ctx, options, expr, prefix,
result_valobj_sp, error,
0, // Line Number
fixed_expression);
}
m_suppress_stop_hooks = old_suppress_value;
return execution_results;
}
lldb::ExpressionVariableSP
Target::GetPersistentVariable(const ConstString &name) {
lldb::ExpressionVariableSP variable_sp;
m_scratch_type_system_map.ForEach(
[name, &variable_sp](TypeSystem *type_system) -> bool {
if (PersistentExpressionState *persistent_state =
type_system->GetPersistentExpressionState()) {
variable_sp = persistent_state->GetVariable(name);
if (variable_sp)
return false; // Stop iterating the ForEach
}
return true; // Keep iterating the ForEach
});
return variable_sp;
}
lldb::addr_t Target::GetPersistentSymbol(const ConstString &name) {
lldb::addr_t address = LLDB_INVALID_ADDRESS;
m_scratch_type_system_map.ForEach(
[name, &address](TypeSystem *type_system) -> bool {
if (PersistentExpressionState *persistent_state =
type_system->GetPersistentExpressionState()) {
address = persistent_state->LookupSymbol(name);
if (address != LLDB_INVALID_ADDRESS)
return false; // Stop iterating the ForEach
}
return true; // Keep iterating the ForEach
});
return address;
}
lldb::addr_t Target::GetCallableLoadAddress(lldb::addr_t load_addr,
AddressClass addr_class) const {
addr_t code_addr = load_addr;
switch (m_arch.GetSpec().GetMachine()) {
case llvm::Triple::mips:
case llvm::Triple::mipsel:
case llvm::Triple::mips64:
case llvm::Triple::mips64el:
switch (addr_class) {
case eAddressClassData:
case eAddressClassDebug:
return LLDB_INVALID_ADDRESS;
case eAddressClassUnknown:
case eAddressClassInvalid:
case eAddressClassCode:
case eAddressClassCodeAlternateISA:
case eAddressClassRuntime:
if ((code_addr & 2ull) || (addr_class == eAddressClassCodeAlternateISA))
code_addr |= 1ull;
break;
}
break;
case llvm::Triple::arm:
case llvm::Triple::thumb:
switch (addr_class) {
case eAddressClassData:
case eAddressClassDebug:
return LLDB_INVALID_ADDRESS;
case eAddressClassUnknown:
case eAddressClassInvalid:
case eAddressClassCode:
case eAddressClassCodeAlternateISA:
case eAddressClassRuntime:
// Check if bit zero it no set?
if ((code_addr & 1ull) == 0) {
// Bit zero isn't set, check if the address is a multiple of 2?
if (code_addr & 2ull) {
// The address is a multiple of 2 so it must be thumb, set bit zero
code_addr |= 1ull;
} else if (addr_class == eAddressClassCodeAlternateISA) {
// We checked the address and the address claims to be the alternate
// ISA which means thumb, so set bit zero.
code_addr |= 1ull;
}
}
break;
}
break;
default:
break;
}
return code_addr;
}
lldb::addr_t Target::GetOpcodeLoadAddress(lldb::addr_t load_addr,
AddressClass addr_class) const {
addr_t opcode_addr = load_addr;
switch (m_arch.GetSpec().GetMachine()) {
case llvm::Triple::mips:
case llvm::Triple::mipsel:
case llvm::Triple::mips64:
case llvm::Triple::mips64el:
case llvm::Triple::arm:
case llvm::Triple::thumb:
switch (addr_class) {
case eAddressClassData:
case eAddressClassDebug:
return LLDB_INVALID_ADDRESS;
case eAddressClassInvalid:
case eAddressClassUnknown:
case eAddressClassCode:
case eAddressClassCodeAlternateISA:
case eAddressClassRuntime:
opcode_addr &= ~(1ull);
break;
}
break;
default:
break;
}
return opcode_addr;
}
lldb::addr_t Target::GetBreakableLoadAddress(lldb::addr_t addr) {
addr_t breakable_addr = addr;
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
switch (m_arch.GetSpec().GetMachine()) {
default:
break;
case llvm::Triple::mips:
case llvm::Triple::mipsel:
case llvm::Triple::mips64:
case llvm::Triple::mips64el: {
addr_t function_start = 0;
addr_t current_offset = 0;
uint32_t loop_count = 0;
Address resolved_addr;
uint32_t arch_flags = m_arch.GetSpec().GetFlags();
bool IsMips16 = arch_flags & ArchSpec::eMIPSAse_mips16;
bool IsMicromips = arch_flags & ArchSpec::eMIPSAse_micromips;
SectionLoadList &section_load_list = GetSectionLoadList();
if (section_load_list.IsEmpty())
// No sections are loaded, so we must assume we are not running yet and
// need to operate only on file address.
m_images.ResolveFileAddress(addr, resolved_addr);
else
section_load_list.ResolveLoadAddress(addr, resolved_addr);
// Get the function boundaries to make sure we don't scan back before the
// beginning of the current function.
ModuleSP temp_addr_module_sp(resolved_addr.GetModule());
if (temp_addr_module_sp) {
SymbolContext sc;
uint32_t resolve_scope = eSymbolContextFunction | eSymbolContextSymbol;
temp_addr_module_sp->ResolveSymbolContextForAddress(resolved_addr,
resolve_scope, sc);
Address sym_addr;
if (sc.function)
sym_addr = sc.function->GetAddressRange().GetBaseAddress();
else if (sc.symbol)
sym_addr = sc.symbol->GetAddress();
function_start = sym_addr.GetLoadAddress(this);
if (function_start == LLDB_INVALID_ADDRESS)
function_start = sym_addr.GetFileAddress();
if (function_start)
current_offset = addr - function_start;
}
// If breakpoint address is start of function then we dont have to do
// anything.
if (current_offset == 0)
return breakable_addr;
else
loop_count = current_offset / 2;
if (loop_count > 3) {
// Scan previous 6 bytes
if (IsMips16 | IsMicromips)
loop_count = 3;
// For mips-only, instructions are always 4 bytes, so scan previous 4
// bytes only.
else
loop_count = 2;
}
// Create Disassembler Instance
lldb::DisassemblerSP disasm_sp(
Disassembler::FindPlugin(m_arch.GetSpec(), nullptr, nullptr));
ExecutionContext exe_ctx;
CalculateExecutionContext(exe_ctx);
InstructionList instruction_list;
InstructionSP prev_insn;
bool prefer_file_cache = true; // Read from file
uint32_t inst_to_choose = 0;
for (uint32_t i = 1; i <= loop_count; i++) {
// Adjust the address to read from.
resolved_addr.Slide(-2);
AddressRange range(resolved_addr, i * 2);
uint32_t insn_size = 0;
disasm_sp->ParseInstructions(&exe_ctx, range, nullptr, prefer_file_cache);
uint32_t num_insns = disasm_sp->GetInstructionList().GetSize();
if (num_insns) {
prev_insn = disasm_sp->GetInstructionList().GetInstructionAtIndex(0);
insn_size = prev_insn->GetOpcode().GetByteSize();
if (i == 1 && insn_size == 2) {
// This looks like a valid 2-byte instruction (but it could be a part
// of upper 4 byte instruction).
instruction_list.Append(prev_insn);
inst_to_choose = 1;
} else if (i == 2) {
// Here we may get one 4-byte instruction or two 2-byte instructions.
if (num_insns == 2) {
// Looks like there are two 2-byte instructions above our
// breakpoint target address. Now the upper 2-byte instruction is
// either a valid 2-byte instruction or could be a part of it's
// upper 4-byte instruction. In both cases we don't care because in
// this case lower 2-byte instruction is definitely a valid
// instruction and whatever i=1 iteration has found out is true.
inst_to_choose = 1;
break;
} else if (insn_size == 4) {
// This instruction claims its a valid 4-byte instruction. But it
// could be a part of it's upper 4-byte instruction. Lets try
// scanning upper 2 bytes to verify this.
instruction_list.Append(prev_insn);
inst_to_choose = 2;
}
} else if (i == 3) {
if (insn_size == 4)
// FIXME: We reached here that means instruction at [target - 4] has
// already claimed to be a 4-byte instruction, and now instruction
// at [target - 6] is also claiming that it's a 4-byte instruction.
// This can not be true. In this case we can not decide the valid
// previous instruction so we let lldb set the breakpoint at the
// address given by user.
inst_to_choose = 0;
else
// This is straight-forward
inst_to_choose = 2;
break;
}
} else {
// Decode failed, bytes do not form a valid instruction. So whatever
// previous iteration has found out is true.
if (i > 1) {
inst_to_choose = i - 1;
break;
}
}
}
// Check if we are able to find any valid instruction.
if (inst_to_choose) {
if (inst_to_choose > instruction_list.GetSize())
inst_to_choose--;
prev_insn = instruction_list.GetInstructionAtIndex(inst_to_choose - 1);
if (prev_insn->HasDelaySlot()) {
uint32_t shift_size = prev_insn->GetOpcode().GetByteSize();
// Adjust the breakable address
breakable_addr = addr - shift_size;
if (log)
log->Printf("Target::%s Breakpoint at 0x%8.8" PRIx64
" is adjusted to 0x%8.8" PRIx64 " due to delay slot\n",
__FUNCTION__, addr, breakable_addr);
}
}
break;
}
}
return breakable_addr;
}
SourceManager &Target::GetSourceManager() {
if (!m_source_manager_ap)
m_source_manager_ap.reset(new SourceManager(shared_from_this()));
return *m_source_manager_ap;
}
ClangModulesDeclVendor *Target::GetClangModulesDeclVendor() {
static std::mutex s_clang_modules_decl_vendor_mutex; // If this is contended
// we can make it
// per-target
{
std::lock_guard<std::mutex> guard(s_clang_modules_decl_vendor_mutex);
if (!m_clang_modules_decl_vendor_ap) {
m_clang_modules_decl_vendor_ap.reset(
ClangModulesDeclVendor::Create(*this));
}
}
return m_clang_modules_decl_vendor_ap.get();
}
Target::StopHookSP Target::CreateStopHook() {
lldb::user_id_t new_uid = ++m_stop_hook_next_id;
Target::StopHookSP stop_hook_sp(new StopHook(shared_from_this(), new_uid));
m_stop_hooks[new_uid] = stop_hook_sp;
return stop_hook_sp;
}
bool Target::RemoveStopHookByID(lldb::user_id_t user_id) {
size_t num_removed = m_stop_hooks.erase(user_id);
return (num_removed != 0);
}
void Target::RemoveAllStopHooks() { m_stop_hooks.clear(); }
Target::StopHookSP Target::GetStopHookByID(lldb::user_id_t user_id) {
StopHookSP found_hook;
StopHookCollection::iterator specified_hook_iter;
specified_hook_iter = m_stop_hooks.find(user_id);
if (specified_hook_iter != m_stop_hooks.end())
found_hook = (*specified_hook_iter).second;
return found_hook;
}
bool Target::SetStopHookActiveStateByID(lldb::user_id_t user_id,
bool active_state) {
StopHookCollection::iterator specified_hook_iter;
specified_hook_iter = m_stop_hooks.find(user_id);
if (specified_hook_iter == m_stop_hooks.end())
return false;
(*specified_hook_iter).second->SetIsActive(active_state);
return true;
}
void Target::SetAllStopHooksActiveState(bool active_state) {
StopHookCollection::iterator pos, end = m_stop_hooks.end();
for (pos = m_stop_hooks.begin(); pos != end; pos++) {
(*pos).second->SetIsActive(active_state);
}
}
void Target::RunStopHooks() {
if (m_suppress_stop_hooks)
return;
if (!m_process_sp)
return;
// Somebody might have restarted the process:
if (m_process_sp->GetState() != eStateStopped)
return;
// <rdar://problem/12027563> make sure we check that we are not stopped
// because of us running a user expression since in that case we do not want
// to run the stop-hooks
if (m_process_sp->GetModIDRef().IsLastResumeForUserExpression())
return;
if (m_stop_hooks.empty())
return;
StopHookCollection::iterator pos, end = m_stop_hooks.end();
// If there aren't any active stop hooks, don't bother either:
bool any_active_hooks = false;
for (pos = m_stop_hooks.begin(); pos != end; pos++) {
if ((*pos).second->IsActive()) {
any_active_hooks = true;
break;
}
}
if (!any_active_hooks)
return;
CommandReturnObject result;
std::vector<ExecutionContext> exc_ctx_with_reasons;
std::vector<SymbolContext> sym_ctx_with_reasons;
ThreadList &cur_threadlist = m_process_sp->GetThreadList();
size_t num_threads = cur_threadlist.GetSize();
for (size_t i = 0; i < num_threads; i++) {
lldb::ThreadSP cur_thread_sp = cur_threadlist.GetThreadAtIndex(i);
if (cur_thread_sp->ThreadStoppedForAReason()) {
lldb::StackFrameSP cur_frame_sp = cur_thread_sp->GetStackFrameAtIndex(0);
exc_ctx_with_reasons.push_back(ExecutionContext(
m_process_sp.get(), cur_thread_sp.get(), cur_frame_sp.get()));
sym_ctx_with_reasons.push_back(
cur_frame_sp->GetSymbolContext(eSymbolContextEverything));
}
}
// If no threads stopped for a reason, don't run the stop-hooks.
size_t num_exe_ctx = exc_ctx_with_reasons.size();
if (num_exe_ctx == 0)
return;
result.SetImmediateOutputStream(m_debugger.GetAsyncOutputStream());
result.SetImmediateErrorStream(m_debugger.GetAsyncErrorStream());
bool keep_going = true;
bool hooks_ran = false;
bool print_hook_header = (m_stop_hooks.size() != 1);
bool print_thread_header = (num_exe_ctx != 1);
for (pos = m_stop_hooks.begin(); keep_going && pos != end; pos++) {
// result.Clear();
StopHookSP cur_hook_sp = (*pos).second;
if (!cur_hook_sp->IsActive())
continue;
bool any_thread_matched = false;
for (size_t i = 0; keep_going && i < num_exe_ctx; i++) {
if ((cur_hook_sp->GetSpecifier() == nullptr ||
cur_hook_sp->GetSpecifier()->SymbolContextMatches(
sym_ctx_with_reasons[i])) &&
(cur_hook_sp->GetThreadSpecifier() == nullptr ||
cur_hook_sp->GetThreadSpecifier()->ThreadPassesBasicTests(
exc_ctx_with_reasons[i].GetThreadRef()))) {
if (!hooks_ran) {
hooks_ran = true;
}
if (print_hook_header && !any_thread_matched) {
const char *cmd =
(cur_hook_sp->GetCommands().GetSize() == 1
? cur_hook_sp->GetCommands().GetStringAtIndex(0)
: nullptr);
if (cmd)
result.AppendMessageWithFormat("\n- Hook %" PRIu64 " (%s)\n",
cur_hook_sp->GetID(), cmd);
else
result.AppendMessageWithFormat("\n- Hook %" PRIu64 "\n",
cur_hook_sp->GetID());
any_thread_matched = true;
}
if (print_thread_header)
result.AppendMessageWithFormat(
"-- Thread %d\n",
exc_ctx_with_reasons[i].GetThreadPtr()->GetIndexID());
CommandInterpreterRunOptions options;
options.SetStopOnContinue(true);
options.SetStopOnError(true);
options.SetEchoCommands(false);
options.SetPrintResults(true);
options.SetAddToHistory(false);
GetDebugger().GetCommandInterpreter().HandleCommands(
cur_hook_sp->GetCommands(), &exc_ctx_with_reasons[i], options,
result);
// If the command started the target going again, we should bag out of
// running the stop hooks.
if ((result.GetStatus() == eReturnStatusSuccessContinuingNoResult) ||
(result.GetStatus() == eReturnStatusSuccessContinuingResult)) {
// But only complain if there were more stop hooks to do:
StopHookCollection::iterator tmp = pos;
if (++tmp != end)
result.AppendMessageWithFormat("\nAborting stop hooks, hook %" PRIu64
" set the program running.\n",
cur_hook_sp->GetID());
keep_going = false;
}
}
}
}
result.GetImmediateOutputStream()->Flush();
result.GetImmediateErrorStream()->Flush();
}
const TargetPropertiesSP &Target::GetGlobalProperties() {
// NOTE: intentional leak so we don't crash if global destructor chain gets
// called as other threads still use the result of this function
static TargetPropertiesSP *g_settings_sp_ptr =
new TargetPropertiesSP(new TargetProperties(nullptr));
return *g_settings_sp_ptr;
}
Status Target::Install(ProcessLaunchInfo *launch_info) {
Status error;
PlatformSP platform_sp(GetPlatform());
if (platform_sp) {
if (platform_sp->IsRemote()) {
if (platform_sp->IsConnected()) {
// Install all files that have an install path, and always install the
// main executable when connected to a remote platform
const ModuleList &modules = GetImages();
const size_t num_images = modules.GetSize();
for (size_t idx = 0; idx < num_images; ++idx) {
ModuleSP module_sp(modules.GetModuleAtIndex(idx));
if (module_sp) {
const bool is_main_executable = module_sp == GetExecutableModule();
FileSpec local_file(module_sp->GetFileSpec());
if (local_file) {
FileSpec remote_file(module_sp->GetRemoteInstallFileSpec());
if (!remote_file) {
if (is_main_executable) // TODO: add setting for always
// installing main executable???
{
// Always install the main executable
remote_file = platform_sp->GetRemoteWorkingDirectory();
remote_file.AppendPathComponent(
module_sp->GetFileSpec().GetFilename().GetCString());
}
}
if (remote_file) {
error = platform_sp->Install(local_file, remote_file);
if (error.Success()) {
module_sp->SetPlatformFileSpec(remote_file);
if (is_main_executable) {
platform_sp->SetFilePermissions(remote_file, 0700);
if (launch_info)
launch_info->SetExecutableFile(remote_file, false);
}
} else
break;
}
}
}
}
}
}
}
return error;
}
bool Target::ResolveLoadAddress(addr_t load_addr, Address &so_addr,
uint32_t stop_id) {
return m_section_load_history.ResolveLoadAddress(stop_id, load_addr, so_addr);
}
bool Target::ResolveFileAddress(lldb::addr_t file_addr,
Address &resolved_addr) {
return m_images.ResolveFileAddress(file_addr, resolved_addr);
}
bool Target::SetSectionLoadAddress(const SectionSP &section_sp,
addr_t new_section_load_addr,
bool warn_multiple) {
const addr_t old_section_load_addr =
m_section_load_history.GetSectionLoadAddress(
SectionLoadHistory::eStopIDNow, section_sp);
if (old_section_load_addr != new_section_load_addr) {
uint32_t stop_id = 0;
ProcessSP process_sp(GetProcessSP());
if (process_sp)
stop_id = process_sp->GetStopID();
else
stop_id = m_section_load_history.GetLastStopID();
if (m_section_load_history.SetSectionLoadAddress(
stop_id, section_sp, new_section_load_addr, warn_multiple))
return true; // Return true if the section load address was changed...
}
return false; // Return false to indicate nothing changed
}
size_t Target::UnloadModuleSections(const ModuleList &module_list) {
size_t section_unload_count = 0;
size_t num_modules = module_list.GetSize();
for (size_t i = 0; i < num_modules; ++i) {
section_unload_count +=
UnloadModuleSections(module_list.GetModuleAtIndex(i));
}
return section_unload_count;
}
size_t Target::UnloadModuleSections(const lldb::ModuleSP &module_sp) {
uint32_t stop_id = 0;
ProcessSP process_sp(GetProcessSP());
if (process_sp)
stop_id = process_sp->GetStopID();
else
stop_id = m_section_load_history.GetLastStopID();
SectionList *sections = module_sp->GetSectionList();
size_t section_unload_count = 0;
if (sections) {
const uint32_t num_sections = sections->GetNumSections(0);
for (uint32_t i = 0; i < num_sections; ++i) {
section_unload_count += m_section_load_history.SetSectionUnloaded(
stop_id, sections->GetSectionAtIndex(i));
}
}
return section_unload_count;
}
bool Target::SetSectionUnloaded(const lldb::SectionSP &section_sp) {
uint32_t stop_id = 0;
ProcessSP process_sp(GetProcessSP());
if (process_sp)
stop_id = process_sp->GetStopID();
else
stop_id = m_section_load_history.GetLastStopID();
return m_section_load_history.SetSectionUnloaded(stop_id, section_sp);
}
bool Target::SetSectionUnloaded(const lldb::SectionSP &section_sp,
addr_t load_addr) {
uint32_t stop_id = 0;
ProcessSP process_sp(GetProcessSP());
if (process_sp)
stop_id = process_sp->GetStopID();
else
stop_id = m_section_load_history.GetLastStopID();
return m_section_load_history.SetSectionUnloaded(stop_id, section_sp,
load_addr);
}
void Target::ClearAllLoadedSections() { m_section_load_history.Clear(); }
Status Target::Launch(ProcessLaunchInfo &launch_info, Stream *stream) {
Status error;
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_TARGET));
if (log)
log->Printf("Target::%s() called for %s", __FUNCTION__,
launch_info.GetExecutableFile().GetPath().c_str());
StateType state = eStateInvalid;
// Scope to temporarily get the process state in case someone has manually
// remotely connected already to a process and we can skip the platform
// launching.
{
ProcessSP process_sp(GetProcessSP());
if (process_sp) {
state = process_sp->GetState();
if (log)
log->Printf(
"Target::%s the process exists, and its current state is %s",
__FUNCTION__, StateAsCString(state));
} else {
if (log)
log->Printf("Target::%s the process instance doesn't currently exist.",
__FUNCTION__);
}
}
launch_info.GetFlags().Set(eLaunchFlagDebug);
// Get the value of synchronous execution here. If you wait till after you
// have started to run, then you could have hit a breakpoint, whose command
// might switch the value, and then you'll pick up that incorrect value.
Debugger &debugger = GetDebugger();
const bool synchronous_execution =
debugger.GetCommandInterpreter().GetSynchronous();
PlatformSP platform_sp(GetPlatform());
// Finalize the file actions, and if none were given, default to opening up a
// pseudo terminal
const bool default_to_use_pty = platform_sp ? platform_sp->IsHost() : false;
if (log)
log->Printf("Target::%s have platform=%s, platform_sp->IsHost()=%s, "
"default_to_use_pty=%s",
__FUNCTION__, platform_sp ? "true" : "false",
platform_sp ? (platform_sp->IsHost() ? "true" : "false")
: "n/a",
default_to_use_pty ? "true" : "false");
launch_info.FinalizeFileActions(this, default_to_use_pty);
if (state == eStateConnected) {
if (launch_info.GetFlags().Test(eLaunchFlagLaunchInTTY)) {
error.SetErrorString(
"can't launch in tty when launching through a remote connection");
return error;
}
}
if (!launch_info.GetArchitecture().IsValid())
launch_info.GetArchitecture() = GetArchitecture();
// If we're not already connected to the process, and if we have a platform
// that can launch a process for debugging, go ahead and do that here.
if (state != eStateConnected && platform_sp &&
platform_sp->CanDebugProcess()) {
if (log)
log->Printf("Target::%s asking the platform to debug the process",
__FUNCTION__);
// Get a weak pointer to the previous process if we have one
ProcessWP process_wp;
if (m_process_sp)
process_wp = m_process_sp;
m_process_sp =
GetPlatform()->DebugProcess(launch_info, debugger, this, error);
// Cleanup the old process since someone might still have a strong
// reference to this process and we would like to allow it to cleanup as
// much as it can without the object being destroyed. We try to lock the
// shared pointer and if that works, then someone else still has a strong
// reference to the process.
ProcessSP old_process_sp(process_wp.lock());
if (old_process_sp)
old_process_sp->Finalize();
} else {
if (log)
log->Printf("Target::%s the platform doesn't know how to debug a "
"process, getting a process plugin to do this for us.",
__FUNCTION__);
if (state == eStateConnected) {
assert(m_process_sp);
} else {
// Use a Process plugin to construct the process.
const char *plugin_name = launch_info.GetProcessPluginName();
CreateProcess(launch_info.GetListenerForProcess(debugger), plugin_name,
nullptr);
}
// Since we didn't have a platform launch the process, launch it here.
if (m_process_sp)
error = m_process_sp->Launch(launch_info);
}
if (!m_process_sp) {
if (error.Success())
error.SetErrorString("failed to launch or debug process");
return error;
}
if (error.Success()) {
if (synchronous_execution ||
!launch_info.GetFlags().Test(eLaunchFlagStopAtEntry)) {
ListenerSP hijack_listener_sp(launch_info.GetHijackListener());
if (!hijack_listener_sp) {
hijack_listener_sp =
Listener::MakeListener("lldb.Target.Launch.hijack");
launch_info.SetHijackListener(hijack_listener_sp);
m_process_sp->HijackProcessEvents(hijack_listener_sp);
}
StateType state = m_process_sp->WaitForProcessToStop(
llvm::None, nullptr, false, hijack_listener_sp, nullptr);
if (state == eStateStopped) {
if (!launch_info.GetFlags().Test(eLaunchFlagStopAtEntry)) {
if (synchronous_execution) {
error = m_process_sp->PrivateResume();
if (error.Success()) {
state = m_process_sp->WaitForProcessToStop(
llvm::None, nullptr, true, hijack_listener_sp, stream);
const bool must_be_alive =
false; // eStateExited is ok, so this must be false
if (!StateIsStoppedState(state, must_be_alive)) {
error.SetErrorStringWithFormat("process isn't stopped: %s",
StateAsCString(state));
}
}
} else {
m_process_sp->RestoreProcessEvents();
error = m_process_sp->PrivateResume();
}
if (!error.Success()) {
Status error2;
error2.SetErrorStringWithFormat(
"process resume at entry point failed: %s", error.AsCString());
error = error2;
}
}
} else if (state == eStateExited) {
bool with_shell = !!launch_info.GetShell();
const int exit_status = m_process_sp->GetExitStatus();
const char *exit_desc = m_process_sp->GetExitDescription();
#define LAUNCH_SHELL_MESSAGE \
"\n'r' and 'run' are aliases that default to launching through a " \
"shell.\nTry launching without going through a shell by using 'process " \
"launch'."
if (exit_desc && exit_desc[0]) {
if (with_shell)
error.SetErrorStringWithFormat(
"process exited with status %i (%s)" LAUNCH_SHELL_MESSAGE,
exit_status, exit_desc);
else
error.SetErrorStringWithFormat("process exited with status %i (%s)",
exit_status, exit_desc);
} else {
if (with_shell)
error.SetErrorStringWithFormat(
"process exited with status %i" LAUNCH_SHELL_MESSAGE,
exit_status);
else
error.SetErrorStringWithFormat("process exited with status %i",
exit_status);
}
} else {
error.SetErrorStringWithFormat(
"initial process state wasn't stopped: %s", StateAsCString(state));
}
}
m_process_sp->RestoreProcessEvents();
} else {
Status error2;
error2.SetErrorStringWithFormat("process launch failed: %s",
error.AsCString());
error = error2;
}
return error;
}
Status Target::Attach(ProcessAttachInfo &attach_info, Stream *stream) {
auto state = eStateInvalid;
auto process_sp = GetProcessSP();
if (process_sp) {
state = process_sp->GetState();
if (process_sp->IsAlive() && state != eStateConnected) {
if (state == eStateAttaching)
return Status("process attach is in progress");
return Status("a process is already being debugged");
}
}
const ModuleSP old_exec_module_sp = GetExecutableModule();
// If no process info was specified, then use the target executable name as
// the process to attach to by default
if (!attach_info.ProcessInfoSpecified()) {
if (old_exec_module_sp)
attach_info.GetExecutableFile().GetFilename() =
old_exec_module_sp->GetPlatformFileSpec().GetFilename();
if (!attach_info.ProcessInfoSpecified()) {
return Status("no process specified, create a target with a file, or "
"specify the --pid or --name");
}
}
const auto platform_sp =
GetDebugger().GetPlatformList().GetSelectedPlatform();
ListenerSP hijack_listener_sp;
const bool async = attach_info.GetAsync();
if (!async) {
hijack_listener_sp =
Listener::MakeListener("lldb.Target.Attach.attach.hijack");
attach_info.SetHijackListener(hijack_listener_sp);
}
Status error;
if (state != eStateConnected && platform_sp != nullptr &&
platform_sp->CanDebugProcess()) {
SetPlatform(platform_sp);
process_sp = platform_sp->Attach(attach_info, GetDebugger(), this, error);
} else {
if (state != eStateConnected) {
const char *plugin_name = attach_info.GetProcessPluginName();
process_sp =
CreateProcess(attach_info.GetListenerForProcess(GetDebugger()),
plugin_name, nullptr);
if (process_sp == nullptr) {
error.SetErrorStringWithFormat(
"failed to create process using plugin %s",
(plugin_name) ? plugin_name : "null");
return error;
}
}
if (hijack_listener_sp)
process_sp->HijackProcessEvents(hijack_listener_sp);
error = process_sp->Attach(attach_info);
}
if (error.Success() && process_sp) {
if (async) {
process_sp->RestoreProcessEvents();
} else {
state = process_sp->WaitForProcessToStop(
llvm::None, nullptr, false, attach_info.GetHijackListener(), stream);
process_sp->RestoreProcessEvents();
if (state != eStateStopped) {
const char *exit_desc = process_sp->GetExitDescription();
if (exit_desc)
error.SetErrorStringWithFormat("%s", exit_desc);
else
error.SetErrorString(
"process did not stop (no such process or permission problem?)");
process_sp->Destroy(false);
}
}
}
return error;
}
//--------------------------------------------------------------
// Target::StopHook
//--------------------------------------------------------------
Target::StopHook::StopHook(lldb::TargetSP target_sp, lldb::user_id_t uid)
: UserID(uid), m_target_sp(target_sp), m_commands(), m_specifier_sp(),
m_thread_spec_ap(), m_active(true) {}
Target::StopHook::StopHook(const StopHook &rhs)
: UserID(rhs.GetID()), m_target_sp(rhs.m_target_sp),
m_commands(rhs.m_commands), m_specifier_sp(rhs.m_specifier_sp),
m_thread_spec_ap(), m_active(rhs.m_active) {
if (rhs.m_thread_spec_ap)
m_thread_spec_ap.reset(new ThreadSpec(*rhs.m_thread_spec_ap.get()));
}
Target::StopHook::~StopHook() = default;
void Target::StopHook::SetSpecifier(SymbolContextSpecifier *specifier) {
m_specifier_sp.reset(specifier);
}
void Target::StopHook::SetThreadSpecifier(ThreadSpec *specifier) {
m_thread_spec_ap.reset(specifier);
}
void Target::StopHook::GetDescription(Stream *s,
lldb::DescriptionLevel level) const {
int indent_level = s->GetIndentLevel();
s->SetIndentLevel(indent_level + 2);
s->Printf("Hook: %" PRIu64 "\n", GetID());
if (m_active)
s->Indent("State: enabled\n");
else
s->Indent("State: disabled\n");
if (m_specifier_sp) {
s->Indent();
s->PutCString("Specifier:\n");
s->SetIndentLevel(indent_level + 4);
m_specifier_sp->GetDescription(s, level);
s->SetIndentLevel(indent_level + 2);
}
if (m_thread_spec_ap) {
StreamString tmp;
s->Indent("Thread:\n");
m_thread_spec_ap->GetDescription(&tmp, level);
s->SetIndentLevel(indent_level + 4);
s->Indent(tmp.GetString());
s->PutCString("\n");
s->SetIndentLevel(indent_level + 2);
}
s->Indent("Commands: \n");
s->SetIndentLevel(indent_level + 4);
uint32_t num_commands = m_commands.GetSize();
for (uint32_t i = 0; i < num_commands; i++) {
s->Indent(m_commands.GetStringAtIndex(i));
s->PutCString("\n");
}
s->SetIndentLevel(indent_level);
}
//--------------------------------------------------------------
// class TargetProperties
//--------------------------------------------------------------
OptionEnumValueElement lldb_private::g_dynamic_value_types[] = {
{eNoDynamicValues, "no-dynamic-values",
"Don't calculate the dynamic type of values"},
{eDynamicCanRunTarget, "run-target", "Calculate the dynamic type of values "
"even if you have to run the target."},
{eDynamicDontRunTarget, "no-run-target",
"Calculate the dynamic type of values, but don't run the target."},
{0, nullptr, nullptr}};
static OptionEnumValueElement g_inline_breakpoint_enums[] = {
{eInlineBreakpointsNever, "never", "Never look for inline breakpoint "
"locations (fastest). This setting "
"should only be used if you know that "
"no inlining occurs in your programs."},
{eInlineBreakpointsHeaders, "headers",
"Only check for inline breakpoint locations when setting breakpoints in "
"header files, but not when setting breakpoint in implementation source "
"files (default)."},
{eInlineBreakpointsAlways, "always",
"Always look for inline breakpoint locations when setting file and line "
"breakpoints (slower but most accurate)."},
{0, nullptr, nullptr}};
typedef enum x86DisassemblyFlavor {
eX86DisFlavorDefault,
eX86DisFlavorIntel,
eX86DisFlavorATT
} x86DisassemblyFlavor;
static OptionEnumValueElement g_x86_dis_flavor_value_types[] = {
{eX86DisFlavorDefault, "default", "Disassembler default (currently att)."},
{eX86DisFlavorIntel, "intel", "Intel disassembler flavor."},
{eX86DisFlavorATT, "att", "AT&T disassembler flavor."},
{0, nullptr, nullptr}};
static OptionEnumValueElement g_hex_immediate_style_values[] = {
{Disassembler::eHexStyleC, "c", "C-style (0xffff)."},
{Disassembler::eHexStyleAsm, "asm", "Asm-style (0ffffh)."},
{0, nullptr, nullptr}};
static OptionEnumValueElement g_load_script_from_sym_file_values[] = {
{eLoadScriptFromSymFileTrue, "true",
"Load debug scripts inside symbol files"},
{eLoadScriptFromSymFileFalse, "false",
"Do not load debug scripts inside symbol files."},
{eLoadScriptFromSymFileWarn, "warn",
"Warn about debug scripts inside symbol files but do not load them."},
{0, nullptr, nullptr}};
static OptionEnumValueElement g_load_current_working_dir_lldbinit_values[] = {
{eLoadCWDlldbinitTrue, "true",
"Load .lldbinit files from current directory"},
{eLoadCWDlldbinitFalse, "false",
"Do not load .lldbinit files from current directory"},
{eLoadCWDlldbinitWarn, "warn",
"Warn about loading .lldbinit files from current directory"},
{0, nullptr, nullptr}};
static OptionEnumValueElement g_memory_module_load_level_values[] = {
{eMemoryModuleLoadLevelMinimal, "minimal",
"Load minimal information when loading modules from memory. Currently "
"this setting loads sections only."},
{eMemoryModuleLoadLevelPartial, "partial",
"Load partial information when loading modules from memory. Currently "
"this setting loads sections and function bounds."},
{eMemoryModuleLoadLevelComplete, "complete",
"Load complete information when loading modules from memory. Currently "
"this setting loads sections and all symbols."},
{0, nullptr, nullptr}};
static PropertyDefinition g_properties[] = {
{"default-arch", OptionValue::eTypeArch, true, 0, nullptr, nullptr,
"Default architecture to choose, when there's a choice."},
{"move-to-nearest-code", OptionValue::eTypeBoolean, false, true, nullptr,
nullptr, "Move breakpoints to nearest code."},
{"language", OptionValue::eTypeLanguage, false, eLanguageTypeUnknown,
nullptr, nullptr,
"The language to use when interpreting expressions entered in commands."},
{"expr-prefix", OptionValue::eTypeFileSpec, false, 0, nullptr, nullptr,
"Path to a file containing expressions to be prepended to all "
"expressions."},
{"prefer-dynamic-value", OptionValue::eTypeEnum, false,
eDynamicDontRunTarget, nullptr, g_dynamic_value_types,
"Should printed values be shown as their dynamic value."},
{"enable-synthetic-value", OptionValue::eTypeBoolean, false, true, nullptr,
nullptr, "Should synthetic values be used by default whenever available."},
{"skip-prologue", OptionValue::eTypeBoolean, false, true, nullptr, nullptr,
"Skip function prologues when setting breakpoints by name."},
{"source-map", OptionValue::eTypePathMap, false, 0, nullptr, nullptr,
"Source path remappings are used to track the change of location between "
"a source file when built, and "
"where it exists on the current system. It consists of an array of "
"duples, the first element of each duple is "
"some part (starting at the root) of the path to the file when it was "
"built, "
"and the second is where the remainder of the original build hierarchy is "
"rooted on the local system. "
"Each element of the array is checked in order and the first one that "
"results in a match wins."},
{"exec-search-paths", OptionValue::eTypeFileSpecList, false, 0, nullptr,
nullptr, "Executable search paths to use when locating executable files "
"whose paths don't match the local file system."},
{"debug-file-search-paths", OptionValue::eTypeFileSpecList, false, 0,
nullptr, nullptr,
"List of directories to be searched when locating debug symbol files."},
{"clang-module-search-paths", OptionValue::eTypeFileSpecList, false, 0,
nullptr, nullptr,
"List of directories to be searched when locating modules for Clang."},
{"auto-import-clang-modules", OptionValue::eTypeBoolean, false, true,
nullptr, nullptr,
"Automatically load Clang modules referred to by the program."},
{"auto-apply-fixits", OptionValue::eTypeBoolean, false, true, nullptr,
nullptr, "Automatically apply fix-it hints to expressions."},
{"notify-about-fixits", OptionValue::eTypeBoolean, false, true, nullptr,
nullptr, "Print the fixed expression text."},
{"save-jit-objects", OptionValue::eTypeBoolean, false, false, nullptr,
nullptr, "Save intermediate object files generated by the LLVM JIT"},
{"max-children-count", OptionValue::eTypeSInt64, false, 256, nullptr,
nullptr, "Maximum number of children to expand in any level of depth."},
{"max-string-summary-length", OptionValue::eTypeSInt64, false, 1024,
nullptr, nullptr,
"Maximum number of characters to show when using %s in summary strings."},
{"max-memory-read-size", OptionValue::eTypeSInt64, false, 1024, nullptr,
nullptr, "Maximum number of bytes that 'memory read' will fetch before "
"--force must be specified."},
{"breakpoints-use-platform-avoid-list", OptionValue::eTypeBoolean, false,
true, nullptr, nullptr, "Consult the platform module avoid list when "
"setting non-module specific breakpoints."},
{"arg0", OptionValue::eTypeString, false, 0, nullptr, nullptr,
"The first argument passed to the program in the argument array which can "
"be different from the executable itself."},
{"run-args", OptionValue::eTypeArgs, false, 0, nullptr, nullptr,
"A list containing all the arguments to be passed to the executable when "
"it is run. Note that this does NOT include the argv[0] which is in "
"target.arg0."},
{"env-vars", OptionValue::eTypeDictionary, false, OptionValue::eTypeString,
nullptr, nullptr, "A list of all the environment variables to be passed "
"to the executable's environment, and their values."},
{"inherit-env", OptionValue::eTypeBoolean, false, true, nullptr, nullptr,
"Inherit the environment from the process that is running LLDB."},
{"input-path", OptionValue::eTypeFileSpec, false, 0, nullptr, nullptr,
"The file/path to be used by the executable program for reading its "
"standard input."},
{"output-path", OptionValue::eTypeFileSpec, false, 0, nullptr, nullptr,
"The file/path to be used by the executable program for writing its "
"standard output."},
{"error-path", OptionValue::eTypeFileSpec, false, 0, nullptr, nullptr,
"The file/path to be used by the executable program for writing its "
"standard error."},
{"detach-on-error", OptionValue::eTypeBoolean, false, true, nullptr,
nullptr, "debugserver will detach (rather than killing) a process if it "
"loses connection with lldb."},
{"preload-symbols", OptionValue::eTypeBoolean, false, true, nullptr, nullptr,
"Enable loading of symbol tables before they are needed."},
{"disable-aslr", OptionValue::eTypeBoolean, false, true, nullptr, nullptr,
"Disable Address Space Layout Randomization (ASLR)"},
{"disable-stdio", OptionValue::eTypeBoolean, false, false, nullptr, nullptr,
"Disable stdin/stdout for process (e.g. for a GUI application)"},
{"inline-breakpoint-strategy", OptionValue::eTypeEnum, false,
eInlineBreakpointsAlways, nullptr, g_inline_breakpoint_enums,
"The strategy to use when settings breakpoints by file and line. "
"Breakpoint locations can end up being inlined by the compiler, so that a "
"compile unit 'a.c' might contain an inlined function from another source "
"file. "
"Usually this is limited to breakpoint locations from inlined functions "
"from header or other include files, or more accurately "
"non-implementation source files. "
"Sometimes code might #include implementation files and cause inlined "
"breakpoint locations in inlined implementation files. "
"Always checking for inlined breakpoint locations can be expensive "
"(memory and time), so if you have a project with many headers "
"and find that setting breakpoints is slow, then you can change this "
"setting to headers. "
"This setting allows you to control exactly which strategy is used when "
"setting "
"file and line breakpoints."},
// FIXME: This is the wrong way to do per-architecture settings, but we
// don't have a general per architecture settings system in place yet.
{"x86-disassembly-flavor", OptionValue::eTypeEnum, false,
eX86DisFlavorDefault, nullptr, g_x86_dis_flavor_value_types,
"The default disassembly flavor to use for x86 or x86-64 targets."},
{"use-hex-immediates", OptionValue::eTypeBoolean, false, true, nullptr,
nullptr, "Show immediates in disassembly as hexadecimal."},
{"hex-immediate-style", OptionValue::eTypeEnum, false,
Disassembler::eHexStyleC, nullptr, g_hex_immediate_style_values,
"Which style to use for printing hexadecimal disassembly values."},
{"use-fast-stepping", OptionValue::eTypeBoolean, false, true, nullptr,
nullptr, "Use a fast stepping algorithm based on running from branch to "
"branch rather than instruction single-stepping."},
{"load-script-from-symbol-file", OptionValue::eTypeEnum, false,
eLoadScriptFromSymFileWarn, nullptr, g_load_script_from_sym_file_values,
"Allow LLDB to load scripting resources embedded in symbol files when "
"available."},
{"load-cwd-lldbinit", OptionValue::eTypeEnum, false, eLoadCWDlldbinitWarn,
nullptr, g_load_current_working_dir_lldbinit_values,
"Allow LLDB to .lldbinit files from the current directory automatically."},
{"memory-module-load-level", OptionValue::eTypeEnum, false,
eMemoryModuleLoadLevelComplete, nullptr, g_memory_module_load_level_values,
"Loading modules from memory can be slow as reading the symbol tables and "
"other data can take a long time depending on your connection to the "
"debug target. "
"This setting helps users control how much information gets loaded when "
"loading modules from memory."
"'complete' is the default value for this setting which will load all "
"sections and symbols by reading them from memory (slowest, most "
"accurate). "
"'partial' will load sections and attempt to find function bounds without "
"downloading the symbol table (faster, still accurate, missing symbol "
"names). "
"'minimal' is the fastest setting and will load section data with no "
"symbols, but should rarely be used as stack frames in these memory "
"regions will be inaccurate and not provide any context (fastest). "},
{"display-expression-in-crashlogs", OptionValue::eTypeBoolean, false, false,
nullptr, nullptr, "Expressions that crash will show up in crash logs if "
"the host system supports executable specific crash log "
"strings and this setting is set to true."},
{"trap-handler-names", OptionValue::eTypeArray, true,
OptionValue::eTypeString, nullptr, nullptr,
"A list of trap handler function names, e.g. a common Unix user process "
"one is _sigtramp."},
{"display-runtime-support-values", OptionValue::eTypeBoolean, false, false,
nullptr, nullptr, "If true, LLDB will show variables that are meant to "
"support the operation of a language's runtime "
"support."},
{"non-stop-mode", OptionValue::eTypeBoolean, false, 0, nullptr, nullptr,
"Disable lock-step debugging, instead control threads independently."},
{nullptr, OptionValue::eTypeInvalid, false, 0, nullptr, nullptr, nullptr}};
enum {
ePropertyDefaultArch,
ePropertyMoveToNearestCode,
ePropertyLanguage,
ePropertyExprPrefix,
ePropertyPreferDynamic,
ePropertyEnableSynthetic,
ePropertySkipPrologue,
ePropertySourceMap,
ePropertyExecutableSearchPaths,
ePropertyDebugFileSearchPaths,
ePropertyClangModuleSearchPaths,
ePropertyAutoImportClangModules,
ePropertyAutoApplyFixIts,
ePropertyNotifyAboutFixIts,
ePropertySaveObjects,
ePropertyMaxChildrenCount,
ePropertyMaxSummaryLength,
ePropertyMaxMemReadSize,
ePropertyBreakpointUseAvoidList,
ePropertyArg0,
ePropertyRunArgs,
ePropertyEnvVars,
ePropertyInheritEnv,
ePropertyInputPath,
ePropertyOutputPath,
ePropertyErrorPath,
ePropertyDetachOnError,
ePropertyPreloadSymbols,
ePropertyDisableASLR,
ePropertyDisableSTDIO,
ePropertyInlineStrategy,
ePropertyDisassemblyFlavor,
ePropertyUseHexImmediates,
ePropertyHexImmediateStyle,
ePropertyUseFastStepping,
ePropertyLoadScriptFromSymbolFile,
ePropertyLoadCWDlldbinitFile,
ePropertyMemoryModuleLoadLevel,
ePropertyDisplayExpressionsInCrashlogs,
ePropertyTrapHandlerNames,
ePropertyDisplayRuntimeSupportValues,
ePropertyNonStopModeEnabled,
ePropertyExperimental
};
class TargetOptionValueProperties : public OptionValueProperties {
public:
TargetOptionValueProperties(const ConstString &name)
: OptionValueProperties(name), m_target(nullptr), m_got_host_env(false) {}
// This constructor is used when creating TargetOptionValueProperties when it
// is part of a new lldb_private::Target instance. It will copy all current
// global property values as needed
TargetOptionValueProperties(Target *target,
const TargetPropertiesSP &target_properties_sp)
: OptionValueProperties(*target_properties_sp->GetValueProperties()),
m_target(target), m_got_host_env(false) {}
const Property *GetPropertyAtIndex(const ExecutionContext *exe_ctx,
bool will_modify,
uint32_t idx) const override {
// When getting the value for a key from the target options, we will always
// try and grab the setting from the current target if there is one. Else
// we just use the one from this instance.
if (idx == ePropertyEnvVars)
GetHostEnvironmentIfNeeded();
if (exe_ctx) {
Target *target = exe_ctx->GetTargetPtr();
if (target) {
TargetOptionValueProperties *target_properties =
static_cast<TargetOptionValueProperties *>(
target->GetValueProperties().get());
if (this != target_properties)
return target_properties->ProtectedGetPropertyAtIndex(idx);
}
}
return ProtectedGetPropertyAtIndex(idx);
}
lldb::TargetSP GetTargetSP() { return m_target->shared_from_this(); }
protected:
void GetHostEnvironmentIfNeeded() const {
if (!m_got_host_env) {
if (m_target) {
m_got_host_env = true;
const uint32_t idx = ePropertyInheritEnv;
if (GetPropertyAtIndexAsBoolean(
nullptr, idx, g_properties[idx].default_uint_value != 0)) {
PlatformSP platform_sp(m_target->GetPlatform());
if (platform_sp) {
Environment env = platform_sp->GetEnvironment();
OptionValueDictionary *env_dict =
GetPropertyAtIndexAsOptionValueDictionary(nullptr,
ePropertyEnvVars);
if (env_dict) {
const bool can_replace = false;
for (const auto &KV : env) {
// Don't allow existing keys to be replaced with ones we get
// from the platform environment
env_dict->SetValueForKey(
ConstString(KV.first()),
OptionValueSP(new OptionValueString(KV.second.c_str())),
can_replace);
}
}
}
}
}
}
}
Target *m_target;
mutable bool m_got_host_env;
};
//----------------------------------------------------------------------
// TargetProperties
//----------------------------------------------------------------------
static PropertyDefinition g_experimental_properties[]{
{"inject-local-vars", OptionValue::eTypeBoolean, true, true, nullptr,
nullptr,
"If true, inject local variables explicitly into the expression text. "
"This will fix symbol resolution when there are name collisions between "
"ivars and local variables. "
"But it can make expressions run much more slowly."},
{"use-modern-type-lookup", OptionValue::eTypeBoolean, true, false, nullptr,
nullptr, "If true, use Clang's modern type lookup infrastructure."},
{nullptr, OptionValue::eTypeInvalid, true, 0, nullptr, nullptr, nullptr}};
enum { ePropertyInjectLocalVars = 0, ePropertyUseModernTypeLookup };
class TargetExperimentalOptionValueProperties : public OptionValueProperties {
public:
TargetExperimentalOptionValueProperties()
: OptionValueProperties(
ConstString(Properties::GetExperimentalSettingsName())) {}
};
TargetExperimentalProperties::TargetExperimentalProperties()
: Properties(OptionValuePropertiesSP(
new TargetExperimentalOptionValueProperties())) {
m_collection_sp->Initialize(g_experimental_properties);
}
//----------------------------------------------------------------------
// TargetProperties
//----------------------------------------------------------------------
TargetProperties::TargetProperties(Target *target)
: Properties(), m_launch_info() {
if (target) {
m_collection_sp.reset(
new TargetOptionValueProperties(target, Target::GetGlobalProperties()));
// Set callbacks to update launch_info whenever "settins set" updated any
// of these properties
m_collection_sp->SetValueChangedCallback(
ePropertyArg0, TargetProperties::Arg0ValueChangedCallback, this);
m_collection_sp->SetValueChangedCallback(
ePropertyRunArgs, TargetProperties::RunArgsValueChangedCallback, this);
m_collection_sp->SetValueChangedCallback(
ePropertyEnvVars, TargetProperties::EnvVarsValueChangedCallback, this);
m_collection_sp->SetValueChangedCallback(
ePropertyInputPath, TargetProperties::InputPathValueChangedCallback,
this);
m_collection_sp->SetValueChangedCallback(
ePropertyOutputPath, TargetProperties::OutputPathValueChangedCallback,
this);
m_collection_sp->SetValueChangedCallback(
ePropertyErrorPath, TargetProperties::ErrorPathValueChangedCallback,
this);
m_collection_sp->SetValueChangedCallback(
ePropertyDetachOnError,
TargetProperties::DetachOnErrorValueChangedCallback, this);
m_collection_sp->SetValueChangedCallback(
ePropertyDisableASLR, TargetProperties::DisableASLRValueChangedCallback,
this);
m_collection_sp->SetValueChangedCallback(
ePropertyDisableSTDIO,
TargetProperties::DisableSTDIOValueChangedCallback, this);
m_experimental_properties_up.reset(new TargetExperimentalProperties());
m_collection_sp->AppendProperty(
ConstString(Properties::GetExperimentalSettingsName()),
ConstString("Experimental settings - setting these won't produce "
"errors if the setting is not present."),
true, m_experimental_properties_up->GetValueProperties());
// Update m_launch_info once it was created
Arg0ValueChangedCallback(this, nullptr);
RunArgsValueChangedCallback(this, nullptr);
// EnvVarsValueChangedCallback(this, nullptr); // FIXME: cause segfault in
// Target::GetPlatform()
InputPathValueChangedCallback(this, nullptr);
OutputPathValueChangedCallback(this, nullptr);
ErrorPathValueChangedCallback(this, nullptr);
DetachOnErrorValueChangedCallback(this, nullptr);
DisableASLRValueChangedCallback(this, nullptr);
DisableSTDIOValueChangedCallback(this, nullptr);
} else {
m_collection_sp.reset(
new TargetOptionValueProperties(ConstString("target")));
m_collection_sp->Initialize(g_properties);
m_experimental_properties_up.reset(new TargetExperimentalProperties());
m_collection_sp->AppendProperty(
ConstString(Properties::GetExperimentalSettingsName()),
ConstString("Experimental settings - setting these won't produce "
"errors if the setting is not present."),
true, m_experimental_properties_up->GetValueProperties());
m_collection_sp->AppendProperty(
ConstString("process"), ConstString("Settings specific to processes."),
true, Process::GetGlobalProperties()->GetValueProperties());
}
}
TargetProperties::~TargetProperties() = default;
bool TargetProperties::GetInjectLocalVariables(
ExecutionContext *exe_ctx) const {
const Property *exp_property = m_collection_sp->GetPropertyAtIndex(
exe_ctx, false, ePropertyExperimental);
OptionValueProperties *exp_values =
exp_property->GetValue()->GetAsProperties();
if (exp_values)
return exp_values->GetPropertyAtIndexAsBoolean(
exe_ctx, ePropertyInjectLocalVars, true);
else
return true;
}
void TargetProperties::SetInjectLocalVariables(ExecutionContext *exe_ctx,
bool b) {
const Property *exp_property =
m_collection_sp->GetPropertyAtIndex(exe_ctx, true, ePropertyExperimental);
OptionValueProperties *exp_values =
exp_property->GetValue()->GetAsProperties();
if (exp_values)
exp_values->SetPropertyAtIndexAsBoolean(exe_ctx, ePropertyInjectLocalVars,
true);
}
bool TargetProperties::GetUseModernTypeLookup() const {
const Property *exp_property = m_collection_sp->GetPropertyAtIndex(
nullptr, false, ePropertyExperimental);
OptionValueProperties *exp_values =
exp_property->GetValue()->GetAsProperties();
if (exp_values)
return exp_values->GetPropertyAtIndexAsBoolean(
nullptr, ePropertyUseModernTypeLookup, true);
else
return true;
}
ArchSpec TargetProperties::GetDefaultArchitecture() const {
OptionValueArch *value = m_collection_sp->GetPropertyAtIndexAsOptionValueArch(
nullptr, ePropertyDefaultArch);
if (value)
return value->GetCurrentValue();
return ArchSpec();
}
void TargetProperties::SetDefaultArchitecture(const ArchSpec &arch) {
OptionValueArch *value = m_collection_sp->GetPropertyAtIndexAsOptionValueArch(
nullptr, ePropertyDefaultArch);
if (value)
return value->SetCurrentValue(arch, true);
}
bool TargetProperties::GetMoveToNearestCode() const {
const uint32_t idx = ePropertyMoveToNearestCode;
return m_collection_sp->GetPropertyAtIndexAsBoolean(
nullptr, idx, g_properties[idx].default_uint_value != 0);
}
lldb::DynamicValueType TargetProperties::GetPreferDynamicValue() const {
const uint32_t idx = ePropertyPreferDynamic;
return (lldb::DynamicValueType)
m_collection_sp->GetPropertyAtIndexAsEnumeration(
nullptr, idx, g_properties[idx].default_uint_value);
}
bool TargetProperties::SetPreferDynamicValue(lldb::DynamicValueType d) {
const uint32_t idx = ePropertyPreferDynamic;
return m_collection_sp->SetPropertyAtIndexAsEnumeration(nullptr, idx, d);
}
bool TargetProperties::GetPreloadSymbols() const {
const uint32_t idx = ePropertyPreloadSymbols;
return m_collection_sp->GetPropertyAtIndexAsBoolean(
nullptr, idx, g_properties[idx].default_uint_value != 0);
}
void TargetProperties::SetPreloadSymbols(bool b) {
const uint32_t idx = ePropertyPreloadSymbols;
m_collection_sp->SetPropertyAtIndexAsBoolean(nullptr, idx, b);
}
bool TargetProperties::GetDisableASLR() const {
const uint32_t idx = ePropertyDisableASLR;
return m_collection_sp->GetPropertyAtIndexAsBoolean(
nullptr, idx, g_properties[idx].default_uint_value != 0);
}
void TargetProperties::SetDisableASLR(bool b) {
const uint32_t idx = ePropertyDisableASLR;
m_collection_sp->SetPropertyAtIndexAsBoolean(nullptr, idx, b);
}
bool TargetProperties::GetDetachOnError() const {
const uint32_t idx = ePropertyDetachOnError;
return m_collection_sp->GetPropertyAtIndexAsBoolean(
nullptr, idx, g_properties[idx].default_uint_value != 0);
}
void TargetProperties::SetDetachOnError(bool b) {
const uint32_t idx = ePropertyDetachOnError;
m_collection_sp->SetPropertyAtIndexAsBoolean(nullptr, idx, b);
}
bool TargetProperties::GetDisableSTDIO() const {
const uint32_t idx = ePropertyDisableSTDIO;
return m_collection_sp->GetPropertyAtIndexAsBoolean(
nullptr, idx, g_properties[idx].default_uint_value != 0);
}
void TargetProperties::SetDisableSTDIO(bool b) {
const uint32_t idx = ePropertyDisableSTDIO;
m_collection_sp->SetPropertyAtIndexAsBoolean(nullptr, idx, b);
}
const char *TargetProperties::GetDisassemblyFlavor() const {
const uint32_t idx = ePropertyDisassemblyFlavor;
const char *return_value;
x86DisassemblyFlavor flavor_value =
(x86DisassemblyFlavor)m_collection_sp->GetPropertyAtIndexAsEnumeration(
nullptr, idx, g_properties[idx].default_uint_value);
return_value = g_x86_dis_flavor_value_types[flavor_value].string_value;
return return_value;
}
InlineStrategy TargetProperties::GetInlineStrategy() const {
const uint32_t idx = ePropertyInlineStrategy;
return (InlineStrategy)m_collection_sp->GetPropertyAtIndexAsEnumeration(
nullptr, idx, g_properties[idx].default_uint_value);
}
llvm::StringRef TargetProperties::GetArg0() const {
const uint32_t idx = ePropertyArg0;
return m_collection_sp->GetPropertyAtIndexAsString(nullptr, idx, llvm::StringRef());
}
void TargetProperties::SetArg0(llvm::StringRef arg) {
const uint32_t idx = ePropertyArg0;
m_collection_sp->SetPropertyAtIndexAsString(
nullptr, idx, arg);
m_launch_info.SetArg0(arg);
}
bool TargetProperties::GetRunArguments(Args &args) const {
const uint32_t idx = ePropertyRunArgs;
return m_collection_sp->GetPropertyAtIndexAsArgs(nullptr, idx, args);
}
void TargetProperties::SetRunArguments(const Args &args) {
const uint32_t idx = ePropertyRunArgs;
m_collection_sp->SetPropertyAtIndexFromArgs(nullptr, idx, args);
m_launch_info.GetArguments() = args;
}
Environment TargetProperties::GetEnvironment() const {
// TODO: Get rid of the Args intermediate step
Args env;
const uint32_t idx = ePropertyEnvVars;
m_collection_sp->GetPropertyAtIndexAsArgs(nullptr, idx, env);
return Environment(env);
}
void TargetProperties::SetEnvironment(Environment env) {
// TODO: Get rid of the Args intermediate step
const uint32_t idx = ePropertyEnvVars;
m_collection_sp->SetPropertyAtIndexFromArgs(nullptr, idx, Args(env));
m_launch_info.GetEnvironment() = std::move(env);
}
bool TargetProperties::GetSkipPrologue() const {
const uint32_t idx = ePropertySkipPrologue;
return m_collection_sp->GetPropertyAtIndexAsBoolean(
nullptr, idx, g_properties[idx].default_uint_value != 0);
}
PathMappingList &TargetProperties::GetSourcePathMap() const {
const uint32_t idx = ePropertySourceMap;
OptionValuePathMappings *option_value =
m_collection_sp->GetPropertyAtIndexAsOptionValuePathMappings(nullptr,
false, idx);
assert(option_value);
return option_value->GetCurrentValue();
}
FileSpecList &TargetProperties::GetExecutableSearchPaths() {
const uint32_t idx = ePropertyExecutableSearchPaths;
OptionValueFileSpecList *option_value =
m_collection_sp->GetPropertyAtIndexAsOptionValueFileSpecList(nullptr,
false, idx);
assert(option_value);
return option_value->GetCurrentValue();
}
FileSpecList &TargetProperties::GetDebugFileSearchPaths() {
const uint32_t idx = ePropertyDebugFileSearchPaths;
OptionValueFileSpecList *option_value =
m_collection_sp->GetPropertyAtIndexAsOptionValueFileSpecList(nullptr,
false, idx);
assert(option_value);
return option_value->GetCurrentValue();
}
FileSpecList &TargetProperties::GetClangModuleSearchPaths() {
const uint32_t idx = ePropertyClangModuleSearchPaths;
OptionValueFileSpecList *option_value =
m_collection_sp->GetPropertyAtIndexAsOptionValueFileSpecList(nullptr,
false, idx);
assert(option_value);
return option_value->GetCurrentValue();
}
bool TargetProperties::GetEnableAutoImportClangModules() const {
const uint32_t idx = ePropertyAutoImportClangModules;
return m_collection_sp->GetPropertyAtIndexAsBoolean(
nullptr, idx, g_properties[idx].default_uint_value != 0);
}
bool TargetProperties::GetEnableAutoApplyFixIts() const {
const uint32_t idx = ePropertyAutoApplyFixIts;
return m_collection_sp->GetPropertyAtIndexAsBoolean(
nullptr, idx, g_properties[idx].default_uint_value != 0);
}
bool TargetProperties::GetEnableNotifyAboutFixIts() const {
const uint32_t idx = ePropertyNotifyAboutFixIts;
return m_collection_sp->GetPropertyAtIndexAsBoolean(
nullptr, idx, g_properties[idx].default_uint_value != 0);
}
bool TargetProperties::GetEnableSaveObjects() const {
const uint32_t idx = ePropertySaveObjects;
return m_collection_sp->GetPropertyAtIndexAsBoolean(
nullptr, idx, g_properties[idx].default_uint_value != 0);
}
bool TargetProperties::GetEnableSyntheticValue() const {
const uint32_t idx = ePropertyEnableSynthetic;
return m_collection_sp->GetPropertyAtIndexAsBoolean(
nullptr, idx, g_properties[idx].default_uint_value != 0);
}
uint32_t TargetProperties::GetMaximumNumberOfChildrenToDisplay() const {
const uint32_t idx = ePropertyMaxChildrenCount;
return m_collection_sp->GetPropertyAtIndexAsSInt64(
nullptr, idx, g_properties[idx].default_uint_value);
}
uint32_t TargetProperties::GetMaximumSizeOfStringSummary() const {
const uint32_t idx = ePropertyMaxSummaryLength;
return m_collection_sp->GetPropertyAtIndexAsSInt64(
nullptr, idx, g_properties[idx].default_uint_value);
}
uint32_t TargetProperties::GetMaximumMemReadSize() const {
const uint32_t idx = ePropertyMaxMemReadSize;
return m_collection_sp->GetPropertyAtIndexAsSInt64(
nullptr, idx, g_properties[idx].default_uint_value);
}
FileSpec TargetProperties::GetStandardInputPath() const {
const uint32_t idx = ePropertyInputPath;
return m_collection_sp->GetPropertyAtIndexAsFileSpec(nullptr, idx);
}
void TargetProperties::SetStandardInputPath(llvm::StringRef path) {
const uint32_t idx = ePropertyInputPath;
m_collection_sp->SetPropertyAtIndexAsString(nullptr, idx, path);
}
FileSpec TargetProperties::GetStandardOutputPath() const {
const uint32_t idx = ePropertyOutputPath;
return m_collection_sp->GetPropertyAtIndexAsFileSpec(nullptr, idx);
}
void TargetProperties::SetStandardOutputPath(llvm::StringRef path) {
const uint32_t idx = ePropertyOutputPath;
m_collection_sp->SetPropertyAtIndexAsString(nullptr, idx, path);
}
FileSpec TargetProperties::GetStandardErrorPath() const {
const uint32_t idx = ePropertyErrorPath;
return m_collection_sp->GetPropertyAtIndexAsFileSpec(nullptr, idx);
}
void TargetProperties::SetStandardErrorPath(llvm::StringRef path) {
const uint32_t idx = ePropertyErrorPath;
m_collection_sp->SetPropertyAtIndexAsString(nullptr, idx, path);
}
LanguageType TargetProperties::GetLanguage() const {
OptionValueLanguage *value =
m_collection_sp->GetPropertyAtIndexAsOptionValueLanguage(
nullptr, ePropertyLanguage);
if (value)
return value->GetCurrentValue();
return LanguageType();
}
llvm::StringRef TargetProperties::GetExpressionPrefixContents() {
const uint32_t idx = ePropertyExprPrefix;
OptionValueFileSpec *file =
m_collection_sp->GetPropertyAtIndexAsOptionValueFileSpec(nullptr, false,
idx);
if (file) {
DataBufferSP data_sp(file->GetFileContents());
if (data_sp)
return llvm::StringRef(
reinterpret_cast<const char *>(data_sp->GetBytes()),
data_sp->GetByteSize());
}
return "";
}
bool TargetProperties::GetBreakpointsConsultPlatformAvoidList() {
const uint32_t idx = ePropertyBreakpointUseAvoidList;
return m_collection_sp->GetPropertyAtIndexAsBoolean(
nullptr, idx, g_properties[idx].default_uint_value != 0);
}
bool TargetProperties::GetUseHexImmediates() const {
const uint32_t idx = ePropertyUseHexImmediates;
return m_collection_sp->GetPropertyAtIndexAsBoolean(
nullptr, idx, g_properties[idx].default_uint_value != 0);
}
bool TargetProperties::GetUseFastStepping() const {
const uint32_t idx = ePropertyUseFastStepping;
return m_collection_sp->GetPropertyAtIndexAsBoolean(
nullptr, idx, g_properties[idx].default_uint_value != 0);
}
bool TargetProperties::GetDisplayExpressionsInCrashlogs() const {
const uint32_t idx = ePropertyDisplayExpressionsInCrashlogs;
return m_collection_sp->GetPropertyAtIndexAsBoolean(
nullptr, idx, g_properties[idx].default_uint_value != 0);
}
LoadScriptFromSymFile TargetProperties::GetLoadScriptFromSymbolFile() const {
const uint32_t idx = ePropertyLoadScriptFromSymbolFile;
return (LoadScriptFromSymFile)
m_collection_sp->GetPropertyAtIndexAsEnumeration(
nullptr, idx, g_properties[idx].default_uint_value);
}
LoadCWDlldbinitFile TargetProperties::GetLoadCWDlldbinitFile() const {
const uint32_t idx = ePropertyLoadCWDlldbinitFile;
return (LoadCWDlldbinitFile)m_collection_sp->GetPropertyAtIndexAsEnumeration(
nullptr, idx, g_properties[idx].default_uint_value);
}
Disassembler::HexImmediateStyle TargetProperties::GetHexImmediateStyle() const {
const uint32_t idx = ePropertyHexImmediateStyle;
return (Disassembler::HexImmediateStyle)
m_collection_sp->GetPropertyAtIndexAsEnumeration(
nullptr, idx, g_properties[idx].default_uint_value);
}
MemoryModuleLoadLevel TargetProperties::GetMemoryModuleLoadLevel() const {
const uint32_t idx = ePropertyMemoryModuleLoadLevel;
return (MemoryModuleLoadLevel)
m_collection_sp->GetPropertyAtIndexAsEnumeration(
nullptr, idx, g_properties[idx].default_uint_value);
}
bool TargetProperties::GetUserSpecifiedTrapHandlerNames(Args &args) const {
const uint32_t idx = ePropertyTrapHandlerNames;
return m_collection_sp->GetPropertyAtIndexAsArgs(nullptr, idx, args);
}
void TargetProperties::SetUserSpecifiedTrapHandlerNames(const Args &args) {
const uint32_t idx = ePropertyTrapHandlerNames;
m_collection_sp->SetPropertyAtIndexFromArgs(nullptr, idx, args);
}
bool TargetProperties::GetDisplayRuntimeSupportValues() const {
const uint32_t idx = ePropertyDisplayRuntimeSupportValues;
return m_collection_sp->GetPropertyAtIndexAsBoolean(nullptr, idx, false);
}
void TargetProperties::SetDisplayRuntimeSupportValues(bool b) {
const uint32_t idx = ePropertyDisplayRuntimeSupportValues;
m_collection_sp->SetPropertyAtIndexAsBoolean(nullptr, idx, b);
}
bool TargetProperties::GetNonStopModeEnabled() const {
const uint32_t idx = ePropertyNonStopModeEnabled;
return m_collection_sp->GetPropertyAtIndexAsBoolean(nullptr, idx, false);
}
void TargetProperties::SetNonStopModeEnabled(bool b) {
const uint32_t idx = ePropertyNonStopModeEnabled;
m_collection_sp->SetPropertyAtIndexAsBoolean(nullptr, idx, b);
}
const ProcessLaunchInfo &TargetProperties::GetProcessLaunchInfo() {
m_launch_info.SetArg0(GetArg0()); // FIXME: Arg0 callback doesn't work
return m_launch_info;
}
void TargetProperties::SetProcessLaunchInfo(
const ProcessLaunchInfo &launch_info) {
m_launch_info = launch_info;
SetArg0(launch_info.GetArg0());
SetRunArguments(launch_info.GetArguments());
SetEnvironment(launch_info.GetEnvironment());
const FileAction *input_file_action =
launch_info.GetFileActionForFD(STDIN_FILENO);
if (input_file_action) {
SetStandardInputPath(input_file_action->GetPath());
}
const FileAction *output_file_action =
launch_info.GetFileActionForFD(STDOUT_FILENO);
if (output_file_action) {
SetStandardOutputPath(output_file_action->GetPath());
}
const FileAction *error_file_action =
launch_info.GetFileActionForFD(STDERR_FILENO);
if (error_file_action) {
SetStandardErrorPath(error_file_action->GetPath());
}
SetDetachOnError(launch_info.GetFlags().Test(lldb::eLaunchFlagDetachOnError));
SetDisableASLR(launch_info.GetFlags().Test(lldb::eLaunchFlagDisableASLR));
SetDisableSTDIO(launch_info.GetFlags().Test(lldb::eLaunchFlagDisableSTDIO));
}
void TargetProperties::Arg0ValueChangedCallback(void *target_property_ptr,
OptionValue *) {
TargetProperties *this_ =
reinterpret_cast<TargetProperties *>(target_property_ptr);
this_->m_launch_info.SetArg0(this_->GetArg0());
}
void TargetProperties::RunArgsValueChangedCallback(void *target_property_ptr,
OptionValue *) {
TargetProperties *this_ =
reinterpret_cast<TargetProperties *>(target_property_ptr);
Args args;
if (this_->GetRunArguments(args))
this_->m_launch_info.GetArguments() = args;
}
void TargetProperties::EnvVarsValueChangedCallback(void *target_property_ptr,
OptionValue *) {
TargetProperties *this_ =
reinterpret_cast<TargetProperties *>(target_property_ptr);
this_->m_launch_info.GetEnvironment() = this_->GetEnvironment();
}
void TargetProperties::InputPathValueChangedCallback(void *target_property_ptr,
OptionValue *) {
TargetProperties *this_ =
reinterpret_cast<TargetProperties *>(target_property_ptr);
this_->m_launch_info.AppendOpenFileAction(
STDIN_FILENO, this_->GetStandardInputPath(), true, false);
}
void TargetProperties::OutputPathValueChangedCallback(void *target_property_ptr,
OptionValue *) {
TargetProperties *this_ =
reinterpret_cast<TargetProperties *>(target_property_ptr);
this_->m_launch_info.AppendOpenFileAction(
STDOUT_FILENO, this_->GetStandardOutputPath(), false, true);
}
void TargetProperties::ErrorPathValueChangedCallback(void *target_property_ptr,
OptionValue *) {
TargetProperties *this_ =
reinterpret_cast<TargetProperties *>(target_property_ptr);
this_->m_launch_info.AppendOpenFileAction(
STDERR_FILENO, this_->GetStandardErrorPath(), false, true);
}
void TargetProperties::DetachOnErrorValueChangedCallback(
void *target_property_ptr, OptionValue *) {
TargetProperties *this_ =
reinterpret_cast<TargetProperties *>(target_property_ptr);
if (this_->GetDetachOnError())
this_->m_launch_info.GetFlags().Set(lldb::eLaunchFlagDetachOnError);
else
this_->m_launch_info.GetFlags().Clear(lldb::eLaunchFlagDetachOnError);
}
void TargetProperties::DisableASLRValueChangedCallback(
void *target_property_ptr, OptionValue *) {
TargetProperties *this_ =
reinterpret_cast<TargetProperties *>(target_property_ptr);
if (this_->GetDisableASLR())
this_->m_launch_info.GetFlags().Set(lldb::eLaunchFlagDisableASLR);
else
this_->m_launch_info.GetFlags().Clear(lldb::eLaunchFlagDisableASLR);
}
void TargetProperties::DisableSTDIOValueChangedCallback(
void *target_property_ptr, OptionValue *) {
TargetProperties *this_ =
reinterpret_cast<TargetProperties *>(target_property_ptr);
if (this_->GetDisableSTDIO())
this_->m_launch_info.GetFlags().Set(lldb::eLaunchFlagDisableSTDIO);
else
this_->m_launch_info.GetFlags().Clear(lldb::eLaunchFlagDisableSTDIO);
}
//----------------------------------------------------------------------
// Target::TargetEventData
//----------------------------------------------------------------------
Target::TargetEventData::TargetEventData(const lldb::TargetSP &target_sp)
: EventData(), m_target_sp(target_sp), m_module_list() {}
Target::TargetEventData::TargetEventData(const lldb::TargetSP &target_sp,
const ModuleList &module_list)
: EventData(), m_target_sp(target_sp), m_module_list(module_list) {}
Target::TargetEventData::~TargetEventData() = default;
const ConstString &Target::TargetEventData::GetFlavorString() {
static ConstString g_flavor("Target::TargetEventData");
return g_flavor;
}
void Target::TargetEventData::Dump(Stream *s) const {
for (size_t i = 0; i < m_module_list.GetSize(); ++i) {
if (i != 0)
*s << ", ";
m_module_list.GetModuleAtIndex(i)->GetDescription(
s, lldb::eDescriptionLevelBrief);
}
}
const Target::TargetEventData *
Target::TargetEventData::GetEventDataFromEvent(const Event *event_ptr) {
if (event_ptr) {
const EventData *event_data = event_ptr->GetData();
if (event_data &&
event_data->GetFlavor() == TargetEventData::GetFlavorString())
return static_cast<const TargetEventData *>(event_ptr->GetData());
}
return nullptr;
}
TargetSP Target::TargetEventData::GetTargetFromEvent(const Event *event_ptr) {
TargetSP target_sp;
const TargetEventData *event_data = GetEventDataFromEvent(event_ptr);
if (event_data)
target_sp = event_data->m_target_sp;
return target_sp;
}
ModuleList
Target::TargetEventData::GetModuleListFromEvent(const Event *event_ptr) {
ModuleList module_list;
const TargetEventData *event_data = GetEventDataFromEvent(event_ptr);
if (event_data)
module_list = event_data->m_module_list;
return module_list;
}
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