llvm-project/lldb/source/API/SBBreakpointLocation.cpp
Pavel Labath 6ac8403430 Switch SBBreakpoint to storing a weak_ptr of the internal breakpoint object
Summary:
There is nothing we can do with the breakpoint once the associated
target becomes deleted. This will make sure we don't hold on to more
resources than we need in this case. In particular, this fixes the case
TestStepOverBreakpoint on windows, where a lingering SBBreakpoint object
causes us to nor unmap the executable file from memory.

Reviewers: clayborg, jingham

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D30249

llvm-svn: 296328
2017-02-27 11:05:34 +00:00

317 lines
9.1 KiB
C++

//===-- SBBreakpointLocation.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/API/SBBreakpointLocation.h"
#include "lldb/API/SBAddress.h"
#include "lldb/API/SBDebugger.h"
#include "lldb/API/SBDefines.h"
#include "lldb/API/SBStream.h"
#include "lldb/Breakpoint/Breakpoint.h"
#include "lldb/Breakpoint/BreakpointLocation.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/StreamFile.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/ScriptInterpreter.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/ThreadSpec.h"
#include "lldb/Target/ThreadSpec.h"
#include "lldb/Utility/Stream.h"
#include "lldb/lldb-defines.h"
#include "lldb/lldb-types.h"
using namespace lldb;
using namespace lldb_private;
SBBreakpointLocation::SBBreakpointLocation() : m_opaque_sp() {}
SBBreakpointLocation::SBBreakpointLocation(
const lldb::BreakpointLocationSP &break_loc_sp)
: m_opaque_sp(break_loc_sp) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
if (log) {
SBStream sstr;
GetDescription(sstr, lldb::eDescriptionLevelBrief);
log->Printf("SBBreakpointLocation::SBBreakpointLocaiton (const "
"lldb::BreakpointLocationsSP &break_loc_sp"
"=%p) => this.sp = %p (%s)",
static_cast<void *>(break_loc_sp.get()),
static_cast<void *>(m_opaque_sp.get()), sstr.GetData());
}
}
SBBreakpointLocation::SBBreakpointLocation(const SBBreakpointLocation &rhs)
: m_opaque_sp(rhs.m_opaque_sp) {}
const SBBreakpointLocation &SBBreakpointLocation::
operator=(const SBBreakpointLocation &rhs) {
if (this != &rhs)
m_opaque_sp = rhs.m_opaque_sp;
return *this;
}
SBBreakpointLocation::~SBBreakpointLocation() {}
bool SBBreakpointLocation::IsValid() const { return m_opaque_sp.get() != NULL; }
SBAddress SBBreakpointLocation::GetAddress() {
if (m_opaque_sp)
return SBAddress(&m_opaque_sp->GetAddress());
else
return SBAddress();
}
addr_t SBBreakpointLocation::GetLoadAddress() {
addr_t ret_addr = LLDB_INVALID_ADDRESS;
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
ret_addr = m_opaque_sp->GetLoadAddress();
}
return ret_addr;
}
void SBBreakpointLocation::SetEnabled(bool enabled) {
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
m_opaque_sp->SetEnabled(enabled);
}
}
bool SBBreakpointLocation::IsEnabled() {
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
return m_opaque_sp->IsEnabled();
} else
return false;
}
uint32_t SBBreakpointLocation::GetIgnoreCount() {
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
return m_opaque_sp->GetIgnoreCount();
} else
return 0;
}
void SBBreakpointLocation::SetIgnoreCount(uint32_t n) {
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
m_opaque_sp->SetIgnoreCount(n);
}
}
void SBBreakpointLocation::SetCondition(const char *condition) {
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
m_opaque_sp->SetCondition(condition);
}
}
const char *SBBreakpointLocation::GetCondition() {
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
return m_opaque_sp->GetConditionText();
}
return NULL;
}
void SBBreakpointLocation::SetScriptCallbackFunction(
const char *callback_function_name) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
if (log)
log->Printf(
"SBBreakpointLocation(%p)::SetScriptCallbackFunction (callback=%s)",
static_cast<void *>(m_opaque_sp.get()), callback_function_name);
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
BreakpointOptions *bp_options = m_opaque_sp->GetLocationOptions();
m_opaque_sp->GetBreakpoint()
.GetTarget()
.GetDebugger()
.GetCommandInterpreter()
.GetScriptInterpreter()
->SetBreakpointCommandCallbackFunction(bp_options,
callback_function_name);
}
}
SBError
SBBreakpointLocation::SetScriptCallbackBody(const char *callback_body_text) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
if (log)
log->Printf("SBBreakpoint(%p)::SetScriptCallbackBody: callback body:\n%s)",
static_cast<void *>(m_opaque_sp.get()), callback_body_text);
SBError sb_error;
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
BreakpointOptions *bp_options = m_opaque_sp->GetLocationOptions();
Error error =
m_opaque_sp->GetBreakpoint()
.GetTarget()
.GetDebugger()
.GetCommandInterpreter()
.GetScriptInterpreter()
->SetBreakpointCommandCallback(bp_options, callback_body_text);
sb_error.SetError(error);
} else
sb_error.SetErrorString("invalid breakpoint");
return sb_error;
}
void SBBreakpointLocation::SetThreadID(tid_t thread_id) {
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
m_opaque_sp->SetThreadID(thread_id);
}
}
tid_t SBBreakpointLocation::GetThreadID() {
tid_t tid = LLDB_INVALID_THREAD_ID;
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
return m_opaque_sp->GetThreadID();
}
return tid;
}
void SBBreakpointLocation::SetThreadIndex(uint32_t index) {
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
m_opaque_sp->SetThreadIndex(index);
}
}
uint32_t SBBreakpointLocation::GetThreadIndex() const {
uint32_t thread_idx = UINT32_MAX;
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
return m_opaque_sp->GetThreadIndex();
}
return thread_idx;
}
void SBBreakpointLocation::SetThreadName(const char *thread_name) {
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
m_opaque_sp->SetThreadName(thread_name);
}
}
const char *SBBreakpointLocation::GetThreadName() const {
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
return m_opaque_sp->GetThreadName();
}
return NULL;
}
void SBBreakpointLocation::SetQueueName(const char *queue_name) {
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
m_opaque_sp->SetQueueName(queue_name);
}
}
const char *SBBreakpointLocation::GetQueueName() const {
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
m_opaque_sp->GetQueueName();
}
return NULL;
}
bool SBBreakpointLocation::IsResolved() {
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
return m_opaque_sp->IsResolved();
}
return false;
}
void SBBreakpointLocation::SetLocation(
const lldb::BreakpointLocationSP &break_loc_sp) {
// Uninstall the callbacks?
m_opaque_sp = break_loc_sp;
}
bool SBBreakpointLocation::GetDescription(SBStream &description,
DescriptionLevel level) {
Stream &strm = description.ref();
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
m_opaque_sp->GetDescription(&strm, level);
strm.EOL();
} else
strm.PutCString("No value");
return true;
}
break_id_t SBBreakpointLocation::GetID() {
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
return m_opaque_sp->GetID();
} else
return LLDB_INVALID_BREAK_ID;
}
SBBreakpoint SBBreakpointLocation::GetBreakpoint() {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
// if (log)
// log->Printf ("SBBreakpointLocation::GetBreakpoint ()");
SBBreakpoint sb_bp;
if (m_opaque_sp) {
std::lock_guard<std::recursive_mutex> guard(
m_opaque_sp->GetTarget().GetAPIMutex());
sb_bp = m_opaque_sp->GetBreakpoint().shared_from_this();
}
if (log) {
SBStream sstr;
sb_bp.GetDescription(sstr);
log->Printf(
"SBBreakpointLocation(%p)::GetBreakpoint () => SBBreakpoint(%p) %s",
static_cast<void *>(m_opaque_sp.get()),
static_cast<void *>(sb_bp.GetSP().get()), sstr.GetData());
}
return sb_bp;
}