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llvm / lldb / refs/heads/release_33 / . / 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.
//
//===----------------------------------------------------------------------===//
#include "lldb/lldb-python.h"
#include "lldb/Target/Target.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#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/Log.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/ModuleSpec.h"
#include "lldb/Core/Section.h"
#include "lldb/Core/SourceManager.h"
#include "lldb/Core/StreamString.h"
#include "lldb/Core/Timer.h"
#include "lldb/Core/ValueObject.h"
#include "lldb/Expression/ClangASTSource.h"
#include "lldb/Expression/ClangUserExpression.h"
#include "lldb/Host/Host.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/lldb-private-log.h"
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/StackFrame.h"
#include "lldb/Target/Thread.h"
#include "lldb/Target/ThreadSpec.h"
using namespace lldb;
using namespace lldb_private;
ConstString &
Target::GetStaticBroadcasterClass ()
{
static ConstString class_name ("lldb.target");
return class_name;
}
//----------------------------------------------------------------------
// Target constructor
//----------------------------------------------------------------------
Target::Target(Debugger &debugger, const ArchSpec &target_arch, const lldb::PlatformSP &platform_sp) :
TargetProperties (this),
Broadcaster (&debugger, Target::GetStaticBroadcasterClass().AsCString()),
ExecutionContextScope (),
m_debugger (debugger),
m_platform_sp (platform_sp),
m_mutex (Mutex::eMutexTypeRecursive),
m_arch (target_arch),
m_images (this),
m_section_load_list (),
m_breakpoint_list (false),
m_internal_breakpoint_list (true),
m_watchpoint_list (),
m_process_sp (),
m_valid (true),
m_search_filter_sp (),
m_image_search_paths (ImageSearchPathsChanged, this),
m_scratch_ast_context_ap (),
m_scratch_ast_source_ap (),
m_ast_importer_ap (),
m_persistent_variables (),
m_source_manager_ap(),
m_stop_hooks (),
m_stop_hook_next_id (0),
m_suppress_stop_hooks (false),
m_suppress_synthetic_value(false)
{
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()", this);
if (m_arch.IsValid())
{
LogIfAnyCategoriesSet(LIBLLDB_LOG_TARGET, "Target::Target created with architecture %s (%s)", m_arch.GetArchitectureName(), m_arch.GetTriple().getTriple().c_str());
}
}
//----------------------------------------------------------------------
// Destructor
//----------------------------------------------------------------------
Target::~Target()
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
if (log)
log->Printf ("%p Target::~Target()", this);
DeleteCurrentProcess ();
}
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.
Mutex::Locker locker;
this->GetWatchpointList().GetListMutex(locker);
DisableAllWatchpoints(false);
ClearAllWatchpointHitCounts();
}
void
Target::DeleteCurrentProcess ()
{
if (m_process_sp.get())
{
m_section_load_list.Clear();
if (m_process_sp->IsAlive())
m_process_sp->Destroy();
m_process_sp->Finalize();
CleanupProcess ();
m_process_sp.reset();
}
}
const lldb::ProcessSP &
Target::CreateProcess (Listener &listener, const char *plugin_name, const FileSpec *crash_file)
{
DeleteCurrentProcess ();
m_process_sp = Process::FindPlugin(*this, plugin_name, listener, crash_file);
return m_process_sp;
}
const lldb::ProcessSP &
Target::GetProcessSP () const
{
return m_process_sp;
}
void
Target::Destroy()
{
Mutex::Locker locker (m_mutex);
m_valid = false;
DeleteCurrentProcess ();
m_platform_sp.reset();
m_arch.Clear();
m_images.Clear();
m_section_load_list.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_scratch_ast_context_ap.reset();
m_scratch_ast_source_ap.reset();
m_ast_importer_ap.reset();
m_persistent_variables.Clear();
m_stop_hooks.clear();
m_stop_hook_next_id = 0;
m_suppress_stop_hooks = false;
m_suppress_synthetic_value = 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,
RegularExpression &source_regex,
bool internal)
{
SearchFilterSP filter_sp(GetSearchFilterForModuleAndCUList (containingModules, source_file_spec_list));
BreakpointResolverSP resolver_sp(new BreakpointResolverFileRegex (NULL, source_regex));
return CreateBreakpoint (filter_sp, resolver_sp, internal);
}
BreakpointSP
Target::CreateBreakpoint (const FileSpecList *containingModules,
const FileSpec &file,
uint32_t line_no,
LazyBool check_inlines,
LazyBool skip_prologue,
bool internal)
{
if (check_inlines == eLazyBoolCalculate)
{
const InlineStrategy inline_strategy = GetInlineStrategy();
switch (inline_strategy)
{
case eInlineBreakpointsNever:
check_inlines = eLazyBoolNo;
break;
case eInlineBreakpointsHeaders:
if (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 (file);
filter_sp = GetSearchFilterForModuleAndCUList (containingModules, &compile_unit_list);
}
else
{
filter_sp = GetSearchFilterForModuleList (containingModules);
}
if (skip_prologue == eLazyBoolCalculate)
skip_prologue = GetSkipPrologue() ? eLazyBoolYes : eLazyBoolNo;
BreakpointResolverSP resolver_sp(new BreakpointResolverFileLine (NULL,
file,
line_no,
check_inlines,
skip_prologue));
return CreateBreakpoint (filter_sp, resolver_sp, internal);
}
BreakpointSP
Target::CreateBreakpoint (lldb::addr_t addr, bool internal)
{
Address so_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
m_section_load_list.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));
return bp_sp;
}
BreakpointSP
Target::CreateBreakpoint (Address &addr, bool internal)
{
SearchFilterSP filter_sp(new SearchFilterForNonModuleSpecificSearches (shared_from_this()));
BreakpointResolverSP resolver_sp (new BreakpointResolverAddress (NULL, addr));
return CreateBreakpoint (filter_sp, resolver_sp, internal);
}
BreakpointSP
Target::CreateBreakpoint (const FileSpecList *containingModules,
const FileSpecList *containingSourceFiles,
const char *func_name,
uint32_t func_name_type_mask,
LazyBool skip_prologue,
bool internal)
{
BreakpointSP bp_sp;
if (func_name)
{
SearchFilterSP filter_sp(GetSearchFilterForModuleAndCUList (containingModules, containingSourceFiles));
if (skip_prologue == eLazyBoolCalculate)
skip_prologue = GetSkipPrologue() ? eLazyBoolYes : eLazyBoolNo;
BreakpointResolverSP resolver_sp (new BreakpointResolverName (NULL,
func_name,
func_name_type_mask,
Breakpoint::Exact,
skip_prologue));
bp_sp = CreateBreakpoint (filter_sp, resolver_sp, internal);
}
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,
LazyBool skip_prologue,
bool internal)
{
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;
BreakpointResolverSP resolver_sp (new BreakpointResolverName (NULL,
func_names,
func_name_type_mask,
skip_prologue));
bp_sp = CreateBreakpoint (filter_sp, resolver_sp, internal);
}
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,
LazyBool skip_prologue,
bool internal)
{
BreakpointSP bp_sp;
if (num_names > 0)
{
SearchFilterSP filter_sp(GetSearchFilterForModuleAndCUList (containingModules, containingSourceFiles));
if (skip_prologue == eLazyBoolCalculate)
skip_prologue = GetSkipPrologue() ? eLazyBoolYes : eLazyBoolNo;
BreakpointResolverSP resolver_sp (new BreakpointResolverName (NULL,
func_names,
num_names,
func_name_type_mask,
skip_prologue));
bp_sp = CreateBreakpoint (filter_sp, resolver_sp, internal);
}
return bp_sp;
}
SearchFilterSP
Target::GetSearchFilterForModule (const FileSpec *containingModule)
{
SearchFilterSP filter_sp;
if (containingModule != NULL)
{
// 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.get() == NULL)
m_search_filter_sp.reset (new SearchFilterForNonModuleSpecificSearches (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.get() == NULL)
m_search_filter_sp.reset (new SearchFilterForNonModuleSpecificSearches (shared_from_this()));
filter_sp = m_search_filter_sp;
}
return filter_sp;
}
SearchFilterSP
Target::GetSearchFilterForModuleAndCUList (const FileSpecList *containingModules,
const FileSpecList *containingSourceFiles)
{
if (containingSourceFiles == NULL || containingSourceFiles->GetSize() == 0)
return GetSearchFilterForModuleList(containingModules);
SearchFilterSP filter_sp;
if (containingModules == NULL)
{
// 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,
LazyBool skip_prologue,
bool internal)
{
SearchFilterSP filter_sp(GetSearchFilterForModuleAndCUList (containingModules, containingSourceFiles));
BreakpointResolverSP resolver_sp(new BreakpointResolverName (NULL,
func_regex,
skip_prologue == eLazyBoolCalculate ? GetSkipPrologue() : skip_prologue));
return CreateBreakpoint (filter_sp, resolver_sp, internal);
}
lldb::BreakpointSP
Target::CreateExceptionBreakpoint (enum lldb::LanguageType language, bool catch_bp, bool throw_bp, bool internal)
{
return LanguageRuntime::CreateExceptionBreakpoint (*this, language, catch_bp, throw_bp, internal);
}
BreakpointSP
Target::CreateBreakpoint (SearchFilterSP &filter_sp, BreakpointResolverSP &resolver_sp, bool internal)
{
BreakpointSP bp_sp;
if (filter_sp && resolver_sp)
{
bp_sp.reset(new Breakpoint (*this, filter_sp, resolver_sp));
resolver_sp->SetBreakpoint (bp_sp.get());
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__, internal ? "yes" : "no", s.GetData());
}
bp_sp->ResolveBreakpoint();
}
if (!internal && bp_sp)
{
m_last_created_breakpoint = bp_sp;
}
return bp_sp;
}
bool
Target::ProcessIsValid()
{
return (m_process_sp && m_process_sp->IsAlive());
}
static bool
CheckIfWatchpointsExhausted(Target *target, Error &error)
{
uint32_t num_supported_hardware_watchpoints;
Error rc = target->GetProcessSP()->GetWatchpointSupportInfo(num_supported_hardware_watchpoints);
if (rc.Success())
{
uint32_t num_current_watchpoints = target->GetWatchpointList().GetSize();
if (num_current_watchpoints >= num_supported_hardware_watchpoints)
error.SetErrorStringWithFormat("number of supported hardware watchpoints (%u) has been reached",
num_supported_hardware_watchpoints);
}
return false;
}
// See also Watchpoint::SetWatchpointType(uint32_t type) and
// the OptionGroupWatchpoint::WatchType enum type.
WatchpointSP
Target::CreateWatchpoint(lldb::addr_t addr, size_t size, const ClangASTType *type, uint32_t kind, Error &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;
}
// 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.
Mutex::Locker locker;
this->GetWatchpointList().GetListMutex(locker);
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 (!CheckIfWatchpointsExhausted(this, error))
{
if (!OptionGroupWatchpoint::IsWatchSizeSupported(size))
error.SetErrorStringWithFormat("watch size of %lu is not supported", size);
}
wp_sp.reset();
}
else
m_last_created_watchpoint = wp_sp;
return wp_sp;
}
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::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);
}
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;
}
// 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;
Error rc = m_process_sp->DisableWatchpoint(wp_sp.get());
if (rc.Fail())
return false;
}
m_watchpoint_list.RemoveAll (true);
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;
Error 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;
Error 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
// 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)
{
Error 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)
{
Error 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);
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 ()
{
return m_images.GetModuleAtIndex(0);
}
Module*
Target::GetExecutableModulePointer ()
{
return m_images.GetModulePointerAtIndex(0);
}
static void
LoadScriptingResourceForModule (const ModuleSP &module_sp, Target *target)
{
Error error;
StreamString feedback_stream;
if (module_sp && !module_sp->LoadScriptingResourceInTarget(target, error, &feedback_stream))
{
if (error.AsCString())
target->GetDebugger().GetErrorStream().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().GetOutputStream().Printf("%s\n",
feedback_stream.GetData());
}
}
void
Target::SetExecutableModule (ModuleSP& executable_sp, bool get_dependent_files)
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_TARGET));
m_images.Clear();
m_scratch_ast_context_ap.reset();
m_scratch_ast_source_ap.reset();
m_ast_importer_ap.reset();
if (executable_sp.get())
{
Timer scoped_timer (__PRETTY_FUNCTION__,
"Target::SetExecutableModule (executable = '%s')",
executable_sp->GetFileSpec().GetPath().c_str());
m_images.Append(executable_sp); // The first image is our exectuable file
// If we haven't set an architecture yet, reset our architecture based on what we found in the executable module.
if (!m_arch.IsValid())
{
m_arch = executable_sp->GetArchitecture();
if (log)
log->Printf ("Target::SetExecutableModule setting architecture to %s (%s) based on executable file", m_arch.GetArchitectureName(), m_arch.GetTriple().getTriple().c_str());
}
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->GetFile (dependent_file_spec, NULL, platform_dependent_file_spec);
else
platform_dependent_file_spec = dependent_file_spec;
ModuleSpec module_spec (platform_dependent_file_spec, m_arch);
ModuleSP image_module_sp(GetSharedModule (module_spec));
if (image_module_sp.get())
{
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));
if (m_arch.IsCompatibleMatch(arch_spec) || !m_arch.IsValid())
{
// If we haven't got a valid arch spec, or the architectures are
// compatible, so just update the architecture. Architectures can be
// equal, yet the triple OS and vendor might change, so we need to do
// the assignment here just in case.
m_arch = arch_spec;
if (log)
log->Printf ("Target::SetArchitecture setting architecture to %s (%s)", arch_spec.GetArchitectureName(), arch_spec.GetTriple().getTriple().c_str());
return true;
}
else
{
// 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 = arch_spec;
ModuleSP executable_sp = GetExecutableModule ();
m_images.Clear();
m_scratch_ast_context_ap.reset();
m_scratch_ast_source_ap.reset();
m_ast_importer_ap.reset();
// 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(), arch_spec);
Error error = ModuleList::GetSharedModule (module_spec,
executable_sp,
&GetExecutableSearchPaths(),
NULL,
NULL);
if (!error.Fail() && executable_sp)
{
SetExecutableModule (executable_sp, true);
return true;
}
}
}
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
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 added to this target for the first time
ModuleList my_module_list;
my_module_list.Append(module_sp);
ModulesDidUnload (my_module_list);
}
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
m_breakpoint_list.UpdateBreakpointsWhenModuleIsReplaced(old_module_sp, new_module_sp);
}
void
Target::ModulesDidLoad (ModuleList &module_list)
{
if (module_list.GetSize())
{
m_breakpoint_list.UpdateBreakpoints (module_list, true);
// TODO: make event data that packages up the module_list
BroadcastEvent (eBroadcastBitModulesLoaded, NULL);
}
}
void
Target::SymbolsDidLoad (ModuleList &module_list)
{
if (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);
BroadcastEvent(eBroadcastBitSymbolsLoaded, NULL);
}
}
void
Target::ModulesDidUnload (ModuleList &module_list)
{
if (module_list.GetSize())
{
m_breakpoint_list.UpdateBreakpoints (module_list, false);
// TODO: make event data that packages up the module_list
BroadcastEvent (eBroadcastBitModulesUnloaded, NULL);
}
}
bool
Target::ModuleIsExcludedForNonModuleSpecificSearches (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 (int i = 0; i < num_modules; i++)
{
if (!ModuleIsExcludedForNonModuleSpecificSearches (matchingModules.GetModuleAtIndex(i)))
return false;
}
return true;
}
}
return false;
}
bool
Target::ModuleIsExcludedForNonModuleSpecificSearches (const lldb::ModuleSP &module_sp)
{
if (GetBreakpointsConsultPlatformAvoidList())
{
if (m_platform_sp)
return m_platform_sp->ModuleIsExcludedForNonModuleSpecificSearches (*this, module_sp);
}
return false;
}
size_t
Target::ReadMemoryFromFileCache (const Address& addr, void *dst, size_t dst_len, Error &error)
{
SectionSP section_sp (addr.GetSection());
if (section_sp)
{
// If the contents of this section are encrypted, the on-disk file is unusuable. 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,
Error &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())
{
if (m_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 becuase
// 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
m_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.SetErrorStringWithFormat("%s[0x%" PRIx64 "] can't be resolved, %s in not currently loaded",
addr_module_sp->GetFileSpec().GetFilename().AsCString(),
resolved_addr.GetFileAddress(),
addr_module_sp->GetFileSpec().GetFilename().AsCString());
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
// libaries 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, Error &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, Error &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);
Error error;
addr_t curr_addr = addr.GetLoadAddress(this);
Address address(addr);
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 == NULL)
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,
Error &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.GetByteOrder(), m_arch.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,
Error &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,
Error &error,
Address &pointer_addr)
{
Scalar scalar;
if (ReadScalarIntegerFromMemory (addr,
prefer_file_cache,
m_arch.GetAddressByteSize(),
false,
scalar,
error))
{
addr_t pointer_vm_addr = scalar.ULongLong(LLDB_INVALID_ADDRESS);
if (pointer_vm_addr != LLDB_INVALID_ADDRESS)
{
if (m_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 becuase
// 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
m_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, Error *error_ptr)
{
ModuleSP module_sp;
Error 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)
{
FileSpec platform_file_spec;
error = m_platform_sp->GetSharedModule (module_spec,
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);
}
}
}
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);
}
}
}
if (error_ptr)
*error_ptr = error;
return module_sp;
}
TargetSP
Target::CalculateTarget ()
{
return shared_from_this();
}
ProcessSP
Target::CalculateProcess ()
{
return ProcessSP();
}
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->m_images.Clear();
target->SetExecutableModule (exe_module_sp, true);
}
}
ClangASTContext *
Target::GetScratchClangASTContext(bool create_on_demand)
{
// Now see if we know the target triple, and if so, create our scratch AST context:
if (m_scratch_ast_context_ap.get() == NULL && m_arch.IsValid() && create_on_demand)
{
m_scratch_ast_context_ap.reset (new ClangASTContext(m_arch.GetTriple().str().c_str()));
m_scratch_ast_source_ap.reset (new ClangASTSource(shared_from_this()));
m_scratch_ast_source_ap->InstallASTContext(m_scratch_ast_context_ap->getASTContext());
llvm::OwningPtr<clang::ExternalASTSource> proxy_ast_source(m_scratch_ast_source_ap->CreateProxy());
m_scratch_ast_context_ap->SetExternalSource(proxy_ast_source);
}
return m_scratch_ast_context_ap.get();
}
ClangASTImporter *
Target::GetClangASTImporter()
{
ClangASTImporter *ast_importer = m_ast_importer_ap.get();
if (!ast_importer)
{
ast_importer = new ClangASTImporter();
m_ast_importer_ap.reset(ast_importer);
}
return ast_importer;
}
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();
}
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 = NULL;
if (sc_ptr != NULL)
target = sc_ptr->target_sp.get();
if (target == NULL && exe_ctx_ptr)
target = exe_ctx_ptr->GetTargetPtr();
return target;
}
ExecutionResults
Target::EvaluateExpression
(
const char *expr_cstr,
StackFrame *frame,
lldb::ValueObjectSP &result_valobj_sp,
const EvaluateExpressionOptions& options
)
{
result_valobj_sp.reset();
ExecutionResults execution_results = eExecutionSetupError;
if (expr_cstr == NULL || expr_cstr[0] == '\0')
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 (frame)
{
frame->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 "$0")
lldb::ClangExpressionVariableSP persistent_var_sp;
// Only check for persistent variables the expression starts with a '$'
if (expr_cstr[0] == '$')
persistent_var_sp = m_persistent_variables.GetVariable (expr_cstr);
if (persistent_var_sp)
{
result_valobj_sp = persistent_var_sp->GetValueObject ();
execution_results = eExecutionCompleted;
}
else
{
const char *prefix = GetExpressionPrefixContentsAsCString();
execution_results = ClangUserExpression::Evaluate (exe_ctx,
options.GetExecutionPolicy(),
lldb::eLanguageTypeUnknown,
options.DoesCoerceToId() ? ClangUserExpression::eResultTypeId : ClangUserExpression::eResultTypeAny,
options.DoesUnwindOnError(),
options.DoesIgnoreBreakpoints(),
expr_cstr,
prefix,
result_valobj_sp,
options.GetRunOthers(),
options.GetTimeoutUsec());
}
m_suppress_stop_hooks = old_suppress_value;
return execution_results;
}
lldb::addr_t
Target::GetCallableLoadAddress (lldb::addr_t load_addr, AddressClass addr_class) const
{
addr_t code_addr = load_addr;
switch (m_arch.GetMachine())
{
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.GetMachine())
{
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;
}
SourceManager &
Target::GetSourceManager ()
{
if (m_source_manager_ap.get() == NULL)
m_source_manager_ap.reset (new SourceManager(shared_from_this()));
return *m_source_manager_ap;
}
lldb::user_id_t
Target::AddStopHook (Target::StopHookSP &new_hook_sp)
{
lldb::user_id_t new_uid = ++m_stop_hook_next_id;
new_hook_sp.reset (new StopHook(shared_from_this(), new_uid));
m_stop_hooks[new_uid] = new_hook_sp;
return new_uid;
}
bool
Target::RemoveStopHookByID (lldb::user_id_t user_id)
{
size_t num_removed;
num_removed = m_stop_hooks.erase (user_id);
if (num_removed == 0)
return false;
else
return true;
}
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;
// <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;
bool print_thread_header;
if (num_exe_ctx == 1)
print_thread_header = false;
else
print_thread_header = true;
if (m_stop_hooks.size() == 1)
print_hook_header = false;
else
print_hook_header = true;
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 () == NULL
|| cur_hook_sp->GetSpecifier()->SymbolContextMatches(sym_ctx_with_reasons[i]))
&& (cur_hook_sp->GetThreadSpecifier() == NULL
|| 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) :
NULL);
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());
bool stop_on_continue = true;
bool stop_on_error = true;
bool echo_commands = false;
bool print_results = true;
GetDebugger().GetCommandInterpreter().HandleCommands (cur_hook_sp->GetCommands(),
&exc_ctx_with_reasons[i],
stop_on_continue,
stop_on_error,
echo_commands,
print_results,
eLazyBoolNo,
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))
{
result.AppendMessageWithFormat ("Aborting stop hooks, hook %" PRIu64 " set the program running.", cur_hook_sp->GetID());
keep_going = false;
}
}
}
}
result.GetImmediateOutputStream()->Flush();
result.GetImmediateErrorStream()->Flush();
}
//--------------------------------------------------------------
// class 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.get() != NULL)
m_thread_spec_ap.reset (new ThreadSpec(*rhs.m_thread_spec_ap.get()));
}
Target::StopHook::~StopHook ()
{
}
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.get() != NULL)
{
StreamString tmp;
s->Indent("Thread:\n");
m_thread_spec_ap->GetDescription (&tmp, level);
s->SetIndentLevel (indent_level + 4);
s->Indent (tmp.GetData());
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, NULL, NULL }
};
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, NULL, NULL }
};
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, NULL, NULL }
};
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, NULL, NULL }
};
static PropertyDefinition
g_properties[] =
{
{ "default-arch" , OptionValue::eTypeArch , true , 0 , NULL, NULL, "Default architecture to choose, when there's a choice." },
{ "expr-prefix" , OptionValue::eTypeFileSpec , false, 0 , NULL, NULL, "Path to a file containing expressions to be prepended to all expressions." },
{ "prefer-dynamic-value" , OptionValue::eTypeEnum , false, eNoDynamicValues , NULL, g_dynamic_value_types, "Should printed values be shown as their dynamic value." },
{ "enable-synthetic-value" , OptionValue::eTypeBoolean , false, true , NULL, NULL, "Should synthetic values be used by default whenever available." },
{ "skip-prologue" , OptionValue::eTypeBoolean , false, true , NULL, NULL, "Skip function prologues when setting breakpoints by name." },
{ "source-map" , OptionValue::eTypePathMap , false, 0 , NULL, NULL, "Source path remappings 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 , NULL, NULL, "Executable search paths to use when locating executable files whose paths don't match the local file system." },
{ "max-children-count" , OptionValue::eTypeSInt64 , false, 256 , NULL, NULL, "Maximum number of children to expand in any level of depth." },
{ "max-string-summary-length" , OptionValue::eTypeSInt64 , false, 1024 , NULL, NULL, "Maximum number of characters to show when using %s in summary strings." },
{ "max-memory-read-size" , OptionValue::eTypeSInt64 , false, 1024 , NULL, NULL, "Maximum number of bytes that 'memory read' will fetch before --force must be specified." },
{ "breakpoints-use-platform-avoid-list", OptionValue::eTypeBoolean , false, true , NULL, NULL, "Consult the platform module avoid list when setting non-module specific breakpoints." },
{ "arg0" , OptionValue::eTypeString , false, 0 , NULL, NULL, "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 , NULL, NULL, "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 , NULL, NULL, "A list of all the environment variables to be passed to the executable's environment, and their values." },
{ "inherit-env" , OptionValue::eTypeBoolean , false, true , NULL, NULL, "Inherit the environment from the process that is running LLDB." },
{ "input-path" , OptionValue::eTypeFileSpec , false, 0 , NULL, NULL, "The file/path to be used by the executable program for reading its standard input." },
{ "output-path" , OptionValue::eTypeFileSpec , false, 0 , NULL, NULL, "The file/path to be used by the executable program for writing its standard output." },
{ "error-path" , OptionValue::eTypeFileSpec , false, 0 , NULL, NULL, "The file/path to be used by the executable program for writing its standard error." },
{ "disable-aslr" , OptionValue::eTypeBoolean , false, true , NULL, NULL, "Disable Address Space Layout Randomization (ASLR)" },
{ "disable-stdio" , OptionValue::eTypeBoolean , false, false , NULL, NULL, "Disable stdin/stdout for process (e.g. for a GUI application)" },
{ "inline-breakpoint-strategy" , OptionValue::eTypeEnum , false, eInlineBreakpointsHeaders , NULL, 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 limitted 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 we try to minimize the "
"times we look for inlined locations. This setting allows you to control exactly which strategy is used when settings "
"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, NULL, g_x86_dis_flavor_value_types, "The default disassembly flavor to use for x86 or x86-64 targets." },
{ "use-fast-stepping" , OptionValue::eTypeBoolean , false, true, NULL, NULL, "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, NULL, g_load_script_from_sym_file_values, "Allow LLDB to load scripting resources embedded in symbol files when available." },
{ NULL , OptionValue::eTypeInvalid , false, 0 , NULL, NULL, NULL }
};
enum
{
ePropertyDefaultArch,
ePropertyExprPrefix,
ePropertyPreferDynamic,
ePropertyEnableSynthetic,
ePropertySkipPrologue,
ePropertySourceMap,
ePropertyExecutableSearchPaths,
ePropertyMaxChildrenCount,
ePropertyMaxSummaryLength,
ePropertyMaxMemReadSize,
ePropertyBreakpointUseAvoidList,
ePropertyArg0,
ePropertyRunArgs,
ePropertyEnvVars,
ePropertyInheritEnv,
ePropertyInputPath,
ePropertyOutputPath,
ePropertyErrorPath,
ePropertyDisableASLR,
ePropertyDisableSTDIO,
ePropertyInlineStrategy,
ePropertyDisassemblyFlavor,
ePropertyUseFastStepping,
ePropertyLoadScriptFromSymbolFile,
};
class TargetOptionValueProperties : public OptionValueProperties
{
public:
TargetOptionValueProperties (const ConstString &name) :
OptionValueProperties (name),
m_target (NULL),
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)
{
}
virtual const Property *
GetPropertyAtIndex (const ExecutionContext *exe_ctx, bool will_modify, uint32_t idx) const
{
// When gettings 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 (NULL, idx, g_properties[idx].default_uint_value != 0))
{
PlatformSP platform_sp (m_target->GetPlatform());
if (platform_sp)
{
StringList env;
if (platform_sp->GetEnvironment(env))
{
OptionValueDictionary *env_dict = GetPropertyAtIndexAsOptionValueDictionary (NULL, ePropertyEnvVars);
if (env_dict)
{
const bool can_replace = false;
const size_t envc = env.GetSize();
for (size_t idx=0; idx<envc; idx++)
{
const char *env_entry = env.GetStringAtIndex (idx);
if (env_entry)
{
const char *equal_pos = ::strchr(env_entry, '=');
ConstString key;
// It is ok to have environment variables with no values
const char *value = NULL;
if (equal_pos)
{
key.SetCStringWithLength(env_entry, equal_pos - env_entry);
if (equal_pos[1])
value = equal_pos + 1;
}
else
{
key.SetCString(env_entry);
}
// Don't allow existing keys to be replaced with ones we get from the platform environment
env_dict->SetValueForKey(key, OptionValueSP(new OptionValueString(value)), can_replace);
}
}
}
}
}
}
}
}
}
Target *m_target;
mutable bool m_got_host_env;
};
TargetProperties::TargetProperties (Target *target) :
Properties ()
{
if (target)
{
m_collection_sp.reset (new TargetOptionValueProperties(target, Target::GetGlobalProperties()));
}
else
{
m_collection_sp.reset (new TargetOptionValueProperties(ConstString("target")));
m_collection_sp->Initialize(g_properties);
m_collection_sp->AppendProperty(ConstString("process"),
ConstString("Settings specify to processes."),
true,
Process::GetGlobalProperties()->GetValueProperties());
}
}
TargetProperties::~TargetProperties ()
{
}
ArchSpec
TargetProperties::GetDefaultArchitecture () const
{
OptionValueArch *value = m_collection_sp->GetPropertyAtIndexAsOptionValueArch (NULL, ePropertyDefaultArch);
if (value)
return value->GetCurrentValue();
return ArchSpec();
}
void
TargetProperties::SetDefaultArchitecture (const ArchSpec& arch)
{
OptionValueArch *value = m_collection_sp->GetPropertyAtIndexAsOptionValueArch (NULL, ePropertyDefaultArch);
if (value)
return value->SetCurrentValue(arch, true);
}
lldb::DynamicValueType
TargetProperties::GetPreferDynamicValue() const
{
const uint32_t idx = ePropertyPreferDynamic;
return (lldb::DynamicValueType)m_collection_sp->GetPropertyAtIndexAsEnumeration (NULL, idx, g_properties[idx].default_uint_value);
}
bool
TargetProperties::GetDisableASLR () const
{
const uint32_t idx = ePropertyDisableASLR;
return m_collection_sp->GetPropertyAtIndexAsBoolean (NULL, idx, g_properties[idx].default_uint_value != 0);
}
void
TargetProperties::SetDisableASLR (bool b)
{
const uint32_t idx = ePropertyDisableASLR;
m_collection_sp->SetPropertyAtIndexAsBoolean (NULL, idx, b);
}
bool
TargetProperties::GetDisableSTDIO () const
{
const uint32_t idx = ePropertyDisableSTDIO;
return m_collection_sp->GetPropertyAtIndexAsBoolean (NULL, idx, g_properties[idx].default_uint_value != 0);
}
void
TargetProperties::SetDisableSTDIO (bool b)
{
const uint32_t idx = ePropertyDisableSTDIO;
m_collection_sp->SetPropertyAtIndexAsBoolean (NULL, idx, b);
}
const char *
TargetProperties::GetDisassemblyFlavor () const
{
const uint32_t idx = ePropertyDisassemblyFlavor;
const char *return_value;
x86DisassemblyFlavor flavor_value = (x86DisassemblyFlavor) m_collection_sp->GetPropertyAtIndexAsEnumeration (NULL, 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 (NULL, idx, g_properties[idx].default_uint_value);
}
const char *
TargetProperties::GetArg0 () const
{
const uint32_t idx = ePropertyArg0;
return m_collection_sp->GetPropertyAtIndexAsString (NULL, idx, NULL);
}
void
TargetProperties::SetArg0 (const char *arg)
{
const uint32_t idx = ePropertyArg0;
m_collection_sp->SetPropertyAtIndexAsString (NULL, idx, arg);
}
bool
TargetProperties::GetRunArguments (Args &args) const
{
const uint32_t idx = ePropertyRunArgs;
return m_collection_sp->GetPropertyAtIndexAsArgs (NULL, idx, args);
}
void
TargetProperties::SetRunArguments (const Args &args)
{
const uint32_t idx = ePropertyRunArgs;
m_collection_sp->SetPropertyAtIndexFromArgs (NULL, idx, args);
}
size_t
TargetProperties::GetEnvironmentAsArgs (Args &env) const
{
const uint32_t idx = ePropertyEnvVars;
return m_collection_sp->GetPropertyAtIndexAsArgs (NULL, idx, env);
}
bool
TargetProperties::GetSkipPrologue() const
{
const uint32_t idx = ePropertySkipPrologue;
return m_collection_sp->GetPropertyAtIndexAsBoolean (NULL, idx, g_properties[idx].default_uint_value != 0);
}
PathMappingList &
TargetProperties::GetSourcePathMap () const
{
const uint32_t idx = ePropertySourceMap;
OptionValuePathMappings *option_value = m_collection_sp->GetPropertyAtIndexAsOptionValuePathMappings (NULL, false, idx);
assert(option_value);
return option_value->GetCurrentValue();
}
FileSpecList &
TargetProperties::GetExecutableSearchPaths ()
{
const uint32_t idx = ePropertyExecutableSearchPaths;
OptionValueFileSpecList *option_value = m_collection_sp->GetPropertyAtIndexAsOptionValueFileSpecList (NULL, false, idx);
assert(option_value);
return option_value->GetCurrentValue();
}
bool
TargetProperties::GetEnableSyntheticValue () const
{
const uint32_t idx = ePropertyEnableSynthetic;
return m_collection_sp->GetPropertyAtIndexAsBoolean (NULL, idx, g_properties[idx].default_uint_value != 0);
}
uint32_t
TargetProperties::GetMaximumNumberOfChildrenToDisplay() const
{
const uint32_t idx = ePropertyMaxChildrenCount;
return m_collection_sp->GetPropertyAtIndexAsSInt64 (NULL, idx, g_properties[idx].default_uint_value);
}
uint32_t
TargetProperties::GetMaximumSizeOfStringSummary() const
{
const uint32_t idx = ePropertyMaxSummaryLength;
return m_collection_sp->GetPropertyAtIndexAsSInt64 (NULL, idx, g_properties[idx].default_uint_value);
}
uint32_t
TargetProperties::GetMaximumMemReadSize () const
{
const uint32_t idx = ePropertyMaxMemReadSize;
return m_collection_sp->GetPropertyAtIndexAsSInt64 (NULL, idx, g_properties[idx].default_uint_value);
}
FileSpec
TargetProperties::GetStandardInputPath () const
{
const uint32_t idx = ePropertyInputPath;
return m_collection_sp->GetPropertyAtIndexAsFileSpec (NULL, idx);
}
void
TargetProperties::SetStandardInputPath (const char *p)
{
const uint32_t idx = ePropertyInputPath;
m_collection_sp->SetPropertyAtIndexAsString (NULL, idx, p);
}
FileSpec
TargetProperties::GetStandardOutputPath () const
{
const uint32_t idx = ePropertyOutputPath;
return m_collection_sp->GetPropertyAtIndexAsFileSpec (NULL, idx);
}
void
TargetProperties::SetStandardOutputPath (const char *p)
{
const uint32_t idx = ePropertyOutputPath;
m_collection_sp->SetPropertyAtIndexAsString (NULL, idx, p);
}
FileSpec
TargetProperties::GetStandardErrorPath () const
{
const uint32_t idx = ePropertyErrorPath;
return m_collection_sp->GetPropertyAtIndexAsFileSpec(NULL, idx);
}
const char *
TargetProperties::GetExpressionPrefixContentsAsCString ()
{
const uint32_t idx = ePropertyExprPrefix;
OptionValueFileSpec *file = m_collection_sp->GetPropertyAtIndexAsOptionValueFileSpec (NULL, false, idx);
if (file)
{
const bool null_terminate = true;
DataBufferSP data_sp(file->GetFileContents(null_terminate));
if (data_sp)
return (const char *) data_sp->GetBytes();
}
return NULL;
}
void
TargetProperties::SetStandardErrorPath (const char *p)
{
const uint32_t idx = ePropertyErrorPath;
m_collection_sp->SetPropertyAtIndexAsString (NULL, idx, p);
}
bool
TargetProperties::GetBreakpointsConsultPlatformAvoidList ()
{
const uint32_t idx = ePropertyBreakpointUseAvoidList;
return m_collection_sp->GetPropertyAtIndexAsBoolean (NULL, idx, g_properties[idx].default_uint_value != 0);
}
bool
TargetProperties::GetUseFastStepping () const
{
const uint32_t idx = ePropertyUseFastStepping;
return m_collection_sp->GetPropertyAtIndexAsBoolean (NULL, idx, g_properties[idx].default_uint_value != 0);
}
LoadScriptFromSymFile
TargetProperties::GetLoadScriptFromSymbolFile () const
{
const uint32_t idx = ePropertyLoadScriptFromSymbolFile;
return (LoadScriptFromSymFile)m_collection_sp->GetPropertyAtIndexAsEnumeration(NULL, idx, g_properties[idx].default_uint_value);
}
const TargetPropertiesSP &
Target::GetGlobalProperties()
{
static TargetPropertiesSP g_settings_sp;
if (!g_settings_sp)
{
g_settings_sp.reset (new TargetProperties (NULL));
}
return g_settings_sp;
}
const ConstString &
Target::TargetEventData::GetFlavorString ()
{
static ConstString g_flavor ("Target::TargetEventData");
return g_flavor;
}
const ConstString &
Target::TargetEventData::GetFlavor () const
{
return TargetEventData::GetFlavorString ();
}
Target::TargetEventData::TargetEventData (const lldb::TargetSP &new_target_sp) :
EventData(),
m_target_sp (new_target_sp)
{
}
Target::TargetEventData::~TargetEventData()
{
}
void
Target::TargetEventData::Dump (Stream *s) const
{
}
const TargetSP
Target::TargetEventData::GetTargetFromEvent (const lldb::EventSP &event_sp)
{
TargetSP target_sp;
const TargetEventData *data = GetEventDataFromEvent (event_sp.get());
if (data)
target_sp = data->m_target_sp;
return target_sp;
}
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 NULL;
}