llvm-project/lldb/source/API/SBTarget.cpp

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//===-- SBTarget.cpp ------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "lldb/API/SBTarget.h"
#include "lldb/Utility/Instrumentation.h"
#include "lldb/Utility/LLDBLog.h"
#include "lldb/lldb-public.h"
#include "lldb/API/SBBreakpoint.h"
#include "lldb/API/SBDebugger.h"
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#include "lldb/API/SBEnvironment.h"
#include "lldb/API/SBEvent.h"
#include "lldb/API/SBExpressionOptions.h"
#include "lldb/API/SBFileSpec.h"
#include "lldb/API/SBListener.h"
#include "lldb/API/SBModule.h"
#include "lldb/API/SBModuleSpec.h"
#include "lldb/API/SBProcess.h"
#include "lldb/API/SBSourceManager.h"
#include "lldb/API/SBStream.h"
#include "lldb/API/SBStringList.h"
#include "lldb/API/SBStructuredData.h"
#include "lldb/API/SBSymbolContextList.h"
#include "lldb/API/SBTrace.h"
#include "lldb/Breakpoint/BreakpointID.h"
#include "lldb/Breakpoint/BreakpointIDList.h"
#include "lldb/Breakpoint/BreakpointList.h"
#include "lldb/Breakpoint/BreakpointLocation.h"
#include "lldb/Core/Address.h"
#include "lldb/Core/AddressResolver.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Core/Disassembler.h"
<rdar://problem/11757916> Make breakpoint setting by file and line much more efficient by only looking for inlined breakpoint locations if we are setting a breakpoint in anything but a source implementation file. Implementing this complex for a many reasons. Turns out that parsing compile units lazily had some issues with respect to how we need to do things with DWARF in .o files. So the fixes in the checkin for this makes these changes: - Add a new setting called "target.inline-breakpoint-strategy" which can be set to "never", "always", or "headers". "never" will never try and set any inlined breakpoints (fastest). "always" always looks for inlined breakpoint locations (slowest, but most accurate). "headers", which is the default setting, will only look for inlined breakpoint locations if the breakpoint is set in what are consudered to be header files, which is realy defined as "not in an implementation source file". - modify the breakpoint setting by file and line to check the current "target.inline-breakpoint-strategy" setting and act accordingly - Modify compile units to be able to get their language and other info lazily. This allows us to create compile units from the debug map and not have to fill all of the details in, and then lazily discover this information as we go on debuggging. This is needed to avoid parsing all .o files when setting breakpoints in implementation only files (no inlines). Otherwise we would need to parse the .o file, the object file (mach-o in our case) and the symbol file (DWARF in the object file) just to see what the compile unit was. - modify the "SymbolFileDWARFDebugMap" to subclass lldb_private::Module so that the virtual "GetObjectFile()" and "GetSymbolVendor()" functions can be intercepted when the .o file contenst are later lazilly needed. Prior to this fix, when we first instantiated the "SymbolFileDWARFDebugMap" class, we would also make modules, object files and symbol files for every .o file in the debug map because we needed to fix up the sections in the .o files with information that is in the executable debug map. Now we lazily do this in the DebugMapModule::GetObjectFile() Cleaned up header includes a bit as well. llvm-svn: 162860
2012-08-30 05:13:06 +08:00
#include "lldb/Core/Module.h"
#include "lldb/Core/ModuleSpec.h"
#include "lldb/Core/SearchFilter.h"
<rdar://problem/11757916> Make breakpoint setting by file and line much more efficient by only looking for inlined breakpoint locations if we are setting a breakpoint in anything but a source implementation file. Implementing this complex for a many reasons. Turns out that parsing compile units lazily had some issues with respect to how we need to do things with DWARF in .o files. So the fixes in the checkin for this makes these changes: - Add a new setting called "target.inline-breakpoint-strategy" which can be set to "never", "always", or "headers". "never" will never try and set any inlined breakpoints (fastest). "always" always looks for inlined breakpoint locations (slowest, but most accurate). "headers", which is the default setting, will only look for inlined breakpoint locations if the breakpoint is set in what are consudered to be header files, which is realy defined as "not in an implementation source file". - modify the breakpoint setting by file and line to check the current "target.inline-breakpoint-strategy" setting and act accordingly - Modify compile units to be able to get their language and other info lazily. This allows us to create compile units from the debug map and not have to fill all of the details in, and then lazily discover this information as we go on debuggging. This is needed to avoid parsing all .o files when setting breakpoints in implementation only files (no inlines). Otherwise we would need to parse the .o file, the object file (mach-o in our case) and the symbol file (DWARF in the object file) just to see what the compile unit was. - modify the "SymbolFileDWARFDebugMap" to subclass lldb_private::Module so that the virtual "GetObjectFile()" and "GetSymbolVendor()" functions can be intercepted when the .o file contenst are later lazilly needed. Prior to this fix, when we first instantiated the "SymbolFileDWARFDebugMap" class, we would also make modules, object files and symbol files for every .o file in the debug map because we needed to fix up the sections in the .o files with information that is in the executable debug map. Now we lazily do this in the DebugMapModule::GetObjectFile() Cleaned up header includes a bit as well. llvm-svn: 162860
2012-08-30 05:13:06 +08:00
#include "lldb/Core/Section.h"
#include "lldb/Core/StructuredDataImpl.h"
#include "lldb/Core/ValueObjectConstResult.h"
#include "lldb/Core/ValueObjectList.h"
#include "lldb/Core/ValueObjectVariable.h"
#include "lldb/Host/Host.h"
#include "lldb/Symbol/DeclVendor.h"
<rdar://problem/11757916> Make breakpoint setting by file and line much more efficient by only looking for inlined breakpoint locations if we are setting a breakpoint in anything but a source implementation file. Implementing this complex for a many reasons. Turns out that parsing compile units lazily had some issues with respect to how we need to do things with DWARF in .o files. So the fixes in the checkin for this makes these changes: - Add a new setting called "target.inline-breakpoint-strategy" which can be set to "never", "always", or "headers". "never" will never try and set any inlined breakpoints (fastest). "always" always looks for inlined breakpoint locations (slowest, but most accurate). "headers", which is the default setting, will only look for inlined breakpoint locations if the breakpoint is set in what are consudered to be header files, which is realy defined as "not in an implementation source file". - modify the breakpoint setting by file and line to check the current "target.inline-breakpoint-strategy" setting and act accordingly - Modify compile units to be able to get their language and other info lazily. This allows us to create compile units from the debug map and not have to fill all of the details in, and then lazily discover this information as we go on debuggging. This is needed to avoid parsing all .o files when setting breakpoints in implementation only files (no inlines). Otherwise we would need to parse the .o file, the object file (mach-o in our case) and the symbol file (DWARF in the object file) just to see what the compile unit was. - modify the "SymbolFileDWARFDebugMap" to subclass lldb_private::Module so that the virtual "GetObjectFile()" and "GetSymbolVendor()" functions can be intercepted when the .o file contenst are later lazilly needed. Prior to this fix, when we first instantiated the "SymbolFileDWARFDebugMap" class, we would also make modules, object files and symbol files for every .o file in the debug map because we needed to fix up the sections in the .o files with information that is in the executable debug map. Now we lazily do this in the DebugMapModule::GetObjectFile() Cleaned up header includes a bit as well. llvm-svn: 162860
2012-08-30 05:13:06 +08:00
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Symbol/SymbolFile.h"
#include "lldb/Symbol/SymbolVendor.h"
#include "lldb/Symbol/TypeSystem.h"
#include "lldb/Symbol/VariableList.h"
#include "lldb/Target/ABI.h"
#include "lldb/Target/Language.h"
#include "lldb/Target/LanguageRuntime.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/StackFrame.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/TargetList.h"
#include "lldb/Utility/ArchSpec.h"
#include "lldb/Utility/Args.h"
#include "lldb/Utility/FileSpec.h"
#include "lldb/Utility/ProcessInfo.h"
#include "lldb/Utility/RegularExpression.h"
#include "Commands/CommandObjectBreakpoint.h"
#include "lldb/Interpreter/CommandReturnObject.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Regex.h"
using namespace lldb;
using namespace lldb_private;
#define DEFAULT_DISASM_BYTE_SIZE 32
static Status AttachToProcess(ProcessAttachInfo &attach_info, Target &target) {
std::lock_guard<std::recursive_mutex> guard(target.GetAPIMutex());
auto process_sp = target.GetProcessSP();
if (process_sp) {
const auto state = process_sp->GetState();
if (process_sp->IsAlive() && state == eStateConnected) {
// If we are already connected, then we have already specified the
// listener, so if a valid listener is supplied, we need to error out to
// let the client know.
if (attach_info.GetListener())
return Status("process is connected and already has a listener, pass "
"empty listener");
}
}
return target.Attach(attach_info, nullptr);
}
// SBTarget constructor
SBTarget::SBTarget() { LLDB_INSTRUMENT_VA(this); }
SBTarget::SBTarget(const SBTarget &rhs) : m_opaque_sp(rhs.m_opaque_sp) {
LLDB_INSTRUMENT_VA(this, rhs);
}
SBTarget::SBTarget(const TargetSP &target_sp) : m_opaque_sp(target_sp) {
LLDB_INSTRUMENT_VA(this, target_sp);
}
const SBTarget &SBTarget::operator=(const SBTarget &rhs) {
LLDB_INSTRUMENT_VA(this, rhs);
if (this != &rhs)
m_opaque_sp = rhs.m_opaque_sp;
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return *this;
}
// Destructor
SBTarget::~SBTarget() = default;
bool SBTarget::EventIsTargetEvent(const SBEvent &event) {
LLDB_INSTRUMENT_VA(event);
return Target::TargetEventData::GetEventDataFromEvent(event.get()) != nullptr;
}
SBTarget SBTarget::GetTargetFromEvent(const SBEvent &event) {
LLDB_INSTRUMENT_VA(event);
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return Target::TargetEventData::GetTargetFromEvent(event.get());
}
uint32_t SBTarget::GetNumModulesFromEvent(const SBEvent &event) {
LLDB_INSTRUMENT_VA(event);
const ModuleList module_list =
Target::TargetEventData::GetModuleListFromEvent(event.get());
return module_list.GetSize();
}
SBModule SBTarget::GetModuleAtIndexFromEvent(const uint32_t idx,
const SBEvent &event) {
LLDB_INSTRUMENT_VA(idx, event);
const ModuleList module_list =
Target::TargetEventData::GetModuleListFromEvent(event.get());
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return SBModule(module_list.GetModuleAtIndex(idx));
}
const char *SBTarget::GetBroadcasterClassName() {
LLDB_INSTRUMENT();
return Target::GetStaticBroadcasterClass().AsCString();
}
bool SBTarget::IsValid() const {
LLDB_INSTRUMENT_VA(this);
return this->operator bool();
}
SBTarget::operator bool() const {
LLDB_INSTRUMENT_VA(this);
return m_opaque_sp.get() != nullptr && m_opaque_sp->IsValid();
}
SBProcess SBTarget::GetProcess() {
LLDB_INSTRUMENT_VA(this);
SBProcess sb_process;
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
ProcessSP process_sp;
TargetSP target_sp(GetSP());
if (target_sp) {
process_sp = target_sp->GetProcessSP();
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
sb_process.SetSP(process_sp);
}
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return sb_process;
}
SBPlatform SBTarget::GetPlatform() {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if (!target_sp)
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return SBPlatform();
SBPlatform platform;
platform.m_opaque_sp = target_sp->GetPlatform();
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return platform;
}
SBDebugger SBTarget::GetDebugger() const {
LLDB_INSTRUMENT_VA(this);
SBDebugger debugger;
TargetSP target_sp(GetSP());
if (target_sp)
debugger.reset(target_sp->GetDebugger().shared_from_this());
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return debugger;
}
SBStructuredData SBTarget::GetStatistics() {
LLDB_INSTRUMENT_VA(this);
SBStructuredData data;
TargetSP target_sp(GetSP());
if (!target_sp)
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return data;
Modify "statistics dump" to dump JSON. This patch is a smaller version of a previous patch https://reviews.llvm.org/D110804. This patch modifies the output of "statistics dump" to be able to get stats from the current target. It adds 3 new stats as well. The output of "statistics dump" is now emitted as JSON so that it can be used to track performance and statistics and the output could be used to populate a database that tracks performance. Sample output looks like: (lldb) statistics dump { "expressionEvaluation": { "failures": 0, "successes": 0 }, "firstStopTime": 0.34164492800000001, "frameVariable": { "failures": 0, "successes": 0 }, "launchOrAttachTime": 0.31969605400000001, "targetCreateTime": 0.0040863039999999998 } The top level keys are: "expressionEvaluation" which replaces the previous stats that were emitted as plain text. This dictionary contains the success and fail counts. "frameVariable" which replaces the previous stats for "frame variable" that were emitted as plain text. This dictionary contains the success and fail counts. "targetCreateTime" contains the number of seconds it took to create the target and load dependent libraries (if they were enabled) and also will contain symbol preloading times if that setting is enabled. "launchOrAttachTime" is the time it takes from when the launch/attach is initiated to when the first private stop occurs. "firstStopTime" is the time in seconds that it takes to stop at the first stop that is presented to the user via the LLDB interface. This value will only have meaning if you set a known breakpoint or stop location in your code that you want to measure as a performance test. This diff is also meant as a place to discuess what we want out of the "statistics dump" command before adding more funcionality. It is also meant to clean up the previous code that was storting statistics in a vector of numbers within the lldb_private::Target class. Differential Revision: https://reviews.llvm.org/D111686
2021-10-21 05:49:09 +08:00
std::string json_str =
llvm::formatv("{0:2}",
DebuggerStats::ReportStatistics(target_sp->GetDebugger(),
target_sp.get())).str();
Modify "statistics dump" to dump JSON. This patch is a smaller version of a previous patch https://reviews.llvm.org/D110804. This patch modifies the output of "statistics dump" to be able to get stats from the current target. It adds 3 new stats as well. The output of "statistics dump" is now emitted as JSON so that it can be used to track performance and statistics and the output could be used to populate a database that tracks performance. Sample output looks like: (lldb) statistics dump { "expressionEvaluation": { "failures": 0, "successes": 0 }, "firstStopTime": 0.34164492800000001, "frameVariable": { "failures": 0, "successes": 0 }, "launchOrAttachTime": 0.31969605400000001, "targetCreateTime": 0.0040863039999999998 } The top level keys are: "expressionEvaluation" which replaces the previous stats that were emitted as plain text. This dictionary contains the success and fail counts. "frameVariable" which replaces the previous stats for "frame variable" that were emitted as plain text. This dictionary contains the success and fail counts. "targetCreateTime" contains the number of seconds it took to create the target and load dependent libraries (if they were enabled) and also will contain symbol preloading times if that setting is enabled. "launchOrAttachTime" is the time it takes from when the launch/attach is initiated to when the first private stop occurs. "firstStopTime" is the time in seconds that it takes to stop at the first stop that is presented to the user via the LLDB interface. This value will only have meaning if you set a known breakpoint or stop location in your code that you want to measure as a performance test. This diff is also meant as a place to discuess what we want out of the "statistics dump" command before adding more funcionality. It is also meant to clean up the previous code that was storting statistics in a vector of numbers within the lldb_private::Target class. Differential Revision: https://reviews.llvm.org/D111686
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data.m_impl_up->SetObjectSP(StructuredData::ParseJSON(json_str));
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return data;
}
void SBTarget::SetCollectingStats(bool v) {
LLDB_INSTRUMENT_VA(this, v);
TargetSP target_sp(GetSP());
if (!target_sp)
return;
Modify "statistics dump" to dump JSON. This patch is a smaller version of a previous patch https://reviews.llvm.org/D110804. This patch modifies the output of "statistics dump" to be able to get stats from the current target. It adds 3 new stats as well. The output of "statistics dump" is now emitted as JSON so that it can be used to track performance and statistics and the output could be used to populate a database that tracks performance. Sample output looks like: (lldb) statistics dump { "expressionEvaluation": { "failures": 0, "successes": 0 }, "firstStopTime": 0.34164492800000001, "frameVariable": { "failures": 0, "successes": 0 }, "launchOrAttachTime": 0.31969605400000001, "targetCreateTime": 0.0040863039999999998 } The top level keys are: "expressionEvaluation" which replaces the previous stats that were emitted as plain text. This dictionary contains the success and fail counts. "frameVariable" which replaces the previous stats for "frame variable" that were emitted as plain text. This dictionary contains the success and fail counts. "targetCreateTime" contains the number of seconds it took to create the target and load dependent libraries (if they were enabled) and also will contain symbol preloading times if that setting is enabled. "launchOrAttachTime" is the time it takes from when the launch/attach is initiated to when the first private stop occurs. "firstStopTime" is the time in seconds that it takes to stop at the first stop that is presented to the user via the LLDB interface. This value will only have meaning if you set a known breakpoint or stop location in your code that you want to measure as a performance test. This diff is also meant as a place to discuess what we want out of the "statistics dump" command before adding more funcionality. It is also meant to clean up the previous code that was storting statistics in a vector of numbers within the lldb_private::Target class. Differential Revision: https://reviews.llvm.org/D111686
2021-10-21 05:49:09 +08:00
return DebuggerStats::SetCollectingStats(v);
}
bool SBTarget::GetCollectingStats() {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if (!target_sp)
return false;
Modify "statistics dump" to dump JSON. This patch is a smaller version of a previous patch https://reviews.llvm.org/D110804. This patch modifies the output of "statistics dump" to be able to get stats from the current target. It adds 3 new stats as well. The output of "statistics dump" is now emitted as JSON so that it can be used to track performance and statistics and the output could be used to populate a database that tracks performance. Sample output looks like: (lldb) statistics dump { "expressionEvaluation": { "failures": 0, "successes": 0 }, "firstStopTime": 0.34164492800000001, "frameVariable": { "failures": 0, "successes": 0 }, "launchOrAttachTime": 0.31969605400000001, "targetCreateTime": 0.0040863039999999998 } The top level keys are: "expressionEvaluation" which replaces the previous stats that were emitted as plain text. This dictionary contains the success and fail counts. "frameVariable" which replaces the previous stats for "frame variable" that were emitted as plain text. This dictionary contains the success and fail counts. "targetCreateTime" contains the number of seconds it took to create the target and load dependent libraries (if they were enabled) and also will contain symbol preloading times if that setting is enabled. "launchOrAttachTime" is the time it takes from when the launch/attach is initiated to when the first private stop occurs. "firstStopTime" is the time in seconds that it takes to stop at the first stop that is presented to the user via the LLDB interface. This value will only have meaning if you set a known breakpoint or stop location in your code that you want to measure as a performance test. This diff is also meant as a place to discuess what we want out of the "statistics dump" command before adding more funcionality. It is also meant to clean up the previous code that was storting statistics in a vector of numbers within the lldb_private::Target class. Differential Revision: https://reviews.llvm.org/D111686
2021-10-21 05:49:09 +08:00
return DebuggerStats::GetCollectingStats();
}
SBProcess SBTarget::LoadCore(const char *core_file) {
LLDB_INSTRUMENT_VA(this, core_file);
lldb::SBError error; // Ignored
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return LoadCore(core_file, error);
}
SBProcess SBTarget::LoadCore(const char *core_file, lldb::SBError &error) {
LLDB_INSTRUMENT_VA(this, core_file, error);
SBProcess sb_process;
TargetSP target_sp(GetSP());
if (target_sp) {
FileSpec filespec(core_file);
FileSystem::Instance().Resolve(filespec);
ProcessSP process_sp(target_sp->CreateProcess(
target_sp->GetDebugger().GetListener(), "", &filespec, false));
if (process_sp) {
error.SetError(process_sp->LoadCore());
if (error.Success())
sb_process.SetSP(process_sp);
} else {
error.SetErrorString("Failed to create the process");
}
} else {
error.SetErrorString("SBTarget is invalid");
}
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return sb_process;
}
SBProcess SBTarget::LaunchSimple(char const **argv, char const **envp,
const char *working_directory) {
LLDB_INSTRUMENT_VA(this, argv, envp, working_directory);
TargetSP target_sp = GetSP();
if (!target_sp)
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return SBProcess();
SBLaunchInfo launch_info = GetLaunchInfo();
if (Module *exe_module = target_sp->GetExecutableModulePointer())
launch_info.SetExecutableFile(exe_module->GetPlatformFileSpec(),
/*add_as_first_arg*/ true);
if (argv)
launch_info.SetArguments(argv, /*append*/ true);
if (envp)
launch_info.SetEnvironmentEntries(envp, /*append*/ false);
if (working_directory)
launch_info.SetWorkingDirectory(working_directory);
SBError error;
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return Launch(launch_info, error);
}
SBError SBTarget::Install() {
LLDB_INSTRUMENT_VA(this);
SBError sb_error;
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
sb_error.ref() = target_sp->Install(nullptr);
}
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return sb_error;
}
SBProcess SBTarget::Launch(SBListener &listener, char const **argv,
char const **envp, const char *stdin_path,
const char *stdout_path, const char *stderr_path,
const char *working_directory,
uint32_t launch_flags, // See LaunchFlags
bool stop_at_entry, lldb::SBError &error) {
LLDB_INSTRUMENT_VA(this, listener, argv, envp, stdin_path, stdout_path,
stderr_path, working_directory, launch_flags,
stop_at_entry, error);
SBProcess sb_process;
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
ProcessSP process_sp;
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
if (stop_at_entry)
launch_flags |= eLaunchFlagStopAtEntry;
if (getenv("LLDB_LAUNCH_FLAG_DISABLE_ASLR"))
launch_flags |= eLaunchFlagDisableASLR;
StateType state = eStateInvalid;
process_sp = target_sp->GetProcessSP();
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
if (process_sp) {
state = process_sp->GetState();
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
if (process_sp->IsAlive() && state != eStateConnected) {
if (state == eStateAttaching)
error.SetErrorString("process attach is in progress");
else
error.SetErrorString("a process is already being debugged");
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return sb_process;
}
}
if (state == eStateConnected) {
// If we are already connected, then we have already specified the
// listener, so if a valid listener is supplied, we need to error out to
// let the client know.
if (listener.IsValid()) {
error.SetErrorString("process is connected and already has a listener, "
"pass empty listener");
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return sb_process;
}
}
if (getenv("LLDB_LAUNCH_FLAG_DISABLE_STDIO"))
launch_flags |= eLaunchFlagDisableSTDIO;
ProcessLaunchInfo launch_info(FileSpec(stdin_path), FileSpec(stdout_path),
FileSpec(stderr_path),
FileSpec(working_directory), launch_flags);
Module *exe_module = target_sp->GetExecutableModulePointer();
if (exe_module)
launch_info.SetExecutableFile(exe_module->GetPlatformFileSpec(), true);
if (argv) {
launch_info.GetArguments().AppendArguments(argv);
} else {
auto default_launch_info = target_sp->GetProcessLaunchInfo();
launch_info.GetArguments().AppendArguments(
default_launch_info.GetArguments());
}
if (envp) {
Add Utility/Environment class for handling... environments Summary: There was some confusion in the code about how to represent process environment. Most of the code (ab)used the Args class for this purpose, but some of it used a more basic StringList class instead. In either case, the fact that the underlying abstraction did not provide primitive operations for the typical environment operations meant that even a simple operation like checking for an environment variable value was several lines of code. This patch adds a separate Environment class, which is essentialy a llvm::StringMap<std::string> in disguise. To standard StringMap functionality, it adds a couple of new functions, which are specific to the environment use case: - (most important) envp conversion for passing into execve() and likes. Instead of trying to maintain a constantly up-to-date envp view, it provides a function which creates a envp view on demand, with the expectation that this will be called as the very last thing before handing the value to the system function. - insert(StringRef KeyEqValue) - splits KeyEqValue into (key, value) pair and inserts it into the environment map. - compose(value_type KeyValue) - takes a map entry and converts in back into "KEY=VALUE" representation. With this interface most of the environment-manipulating code becomes one-liners. The only tricky part was maintaining compatibility in SBLaunchInfo, which expects that the environment entries are accessible by index and that the returned const char* is backed by the launch info object (random access into maps is hard and the map stores the entry in a deconstructed form, so we cannot just return a .c_str() value). To solve this, I have the SBLaunchInfo convert the environment into the "envp" form, and use it to answer the environment queries. Extra code is added to make sure the envp version is always in sync. (This also improves the layering situation as Args was in the Interpreter module whereas Environment is in Utility.) Reviewers: zturner, davide, jingham, clayborg Subscribers: emaste, lldb-commits, mgorny Differential Revision: https://reviews.llvm.org/D41359 llvm-svn: 322174
2018-01-10 19:57:31 +08:00
launch_info.GetEnvironment() = Environment(envp);
} else {
auto default_launch_info = target_sp->GetProcessLaunchInfo();
launch_info.GetEnvironment() = default_launch_info.GetEnvironment();
}
if (listener.IsValid())
launch_info.SetListener(listener.GetSP());
error.SetError(target_sp->Launch(launch_info, nullptr));
sb_process.SetSP(target_sp->GetProcessSP());
} else {
error.SetErrorString("SBTarget is invalid");
}
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return sb_process;
}
SBProcess SBTarget::Launch(SBLaunchInfo &sb_launch_info, SBError &error) {
LLDB_INSTRUMENT_VA(this, sb_launch_info, error);
SBProcess sb_process;
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
StateType state = eStateInvalid;
{
ProcessSP process_sp = target_sp->GetProcessSP();
if (process_sp) {
state = process_sp->GetState();
if (process_sp->IsAlive() && state != eStateConnected) {
if (state == eStateAttaching)
error.SetErrorString("process attach is in progress");
else
error.SetErrorString("a process is already being debugged");
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return sb_process;
}
}
}
Add Utility/Environment class for handling... environments Summary: There was some confusion in the code about how to represent process environment. Most of the code (ab)used the Args class for this purpose, but some of it used a more basic StringList class instead. In either case, the fact that the underlying abstraction did not provide primitive operations for the typical environment operations meant that even a simple operation like checking for an environment variable value was several lines of code. This patch adds a separate Environment class, which is essentialy a llvm::StringMap<std::string> in disguise. To standard StringMap functionality, it adds a couple of new functions, which are specific to the environment use case: - (most important) envp conversion for passing into execve() and likes. Instead of trying to maintain a constantly up-to-date envp view, it provides a function which creates a envp view on demand, with the expectation that this will be called as the very last thing before handing the value to the system function. - insert(StringRef KeyEqValue) - splits KeyEqValue into (key, value) pair and inserts it into the environment map. - compose(value_type KeyValue) - takes a map entry and converts in back into "KEY=VALUE" representation. With this interface most of the environment-manipulating code becomes one-liners. The only tricky part was maintaining compatibility in SBLaunchInfo, which expects that the environment entries are accessible by index and that the returned const char* is backed by the launch info object (random access into maps is hard and the map stores the entry in a deconstructed form, so we cannot just return a .c_str() value). To solve this, I have the SBLaunchInfo convert the environment into the "envp" form, and use it to answer the environment queries. Extra code is added to make sure the envp version is always in sync. (This also improves the layering situation as Args was in the Interpreter module whereas Environment is in Utility.) Reviewers: zturner, davide, jingham, clayborg Subscribers: emaste, lldb-commits, mgorny Differential Revision: https://reviews.llvm.org/D41359 llvm-svn: 322174
2018-01-10 19:57:31 +08:00
lldb_private::ProcessLaunchInfo launch_info = sb_launch_info.ref();
if (!launch_info.GetExecutableFile()) {
Module *exe_module = target_sp->GetExecutableModulePointer();
if (exe_module)
launch_info.SetExecutableFile(exe_module->GetPlatformFileSpec(), true);
}
const ArchSpec &arch_spec = target_sp->GetArchitecture();
if (arch_spec.IsValid())
launch_info.GetArchitecture() = arch_spec;
error.SetError(target_sp->Launch(launch_info, nullptr));
Add Utility/Environment class for handling... environments Summary: There was some confusion in the code about how to represent process environment. Most of the code (ab)used the Args class for this purpose, but some of it used a more basic StringList class instead. In either case, the fact that the underlying abstraction did not provide primitive operations for the typical environment operations meant that even a simple operation like checking for an environment variable value was several lines of code. This patch adds a separate Environment class, which is essentialy a llvm::StringMap<std::string> in disguise. To standard StringMap functionality, it adds a couple of new functions, which are specific to the environment use case: - (most important) envp conversion for passing into execve() and likes. Instead of trying to maintain a constantly up-to-date envp view, it provides a function which creates a envp view on demand, with the expectation that this will be called as the very last thing before handing the value to the system function. - insert(StringRef KeyEqValue) - splits KeyEqValue into (key, value) pair and inserts it into the environment map. - compose(value_type KeyValue) - takes a map entry and converts in back into "KEY=VALUE" representation. With this interface most of the environment-manipulating code becomes one-liners. The only tricky part was maintaining compatibility in SBLaunchInfo, which expects that the environment entries are accessible by index and that the returned const char* is backed by the launch info object (random access into maps is hard and the map stores the entry in a deconstructed form, so we cannot just return a .c_str() value). To solve this, I have the SBLaunchInfo convert the environment into the "envp" form, and use it to answer the environment queries. Extra code is added to make sure the envp version is always in sync. (This also improves the layering situation as Args was in the Interpreter module whereas Environment is in Utility.) Reviewers: zturner, davide, jingham, clayborg Subscribers: emaste, lldb-commits, mgorny Differential Revision: https://reviews.llvm.org/D41359 llvm-svn: 322174
2018-01-10 19:57:31 +08:00
sb_launch_info.set_ref(launch_info);
sb_process.SetSP(target_sp->GetProcessSP());
} else {
error.SetErrorString("SBTarget is invalid");
}
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return sb_process;
}
lldb::SBProcess SBTarget::Attach(SBAttachInfo &sb_attach_info, SBError &error) {
LLDB_INSTRUMENT_VA(this, sb_attach_info, error);
SBProcess sb_process;
TargetSP target_sp(GetSP());
if (target_sp) {
ProcessAttachInfo &attach_info = sb_attach_info.ref();
if (attach_info.ProcessIDIsValid() && !attach_info.UserIDIsValid()) {
PlatformSP platform_sp = target_sp->GetPlatform();
// See if we can pre-verify if a process exists or not
if (platform_sp && platform_sp->IsConnected()) {
lldb::pid_t attach_pid = attach_info.GetProcessID();
ProcessInstanceInfo instance_info;
if (platform_sp->GetProcessInfo(attach_pid, instance_info)) {
attach_info.SetUserID(instance_info.GetEffectiveUserID());
} else {
error.ref().SetErrorStringWithFormat(
"no process found with process ID %" PRIu64, attach_pid);
2022-01-10 14:54:08 +08:00
return sb_process;
}
}
}
error.SetError(AttachToProcess(attach_info, *target_sp));
if (error.Success())
sb_process.SetSP(target_sp->GetProcessSP());
} else {
error.SetErrorString("SBTarget is invalid");
}
2022-01-10 14:54:08 +08:00
return sb_process;
}
lldb::SBProcess SBTarget::AttachToProcessWithID(
SBListener &listener,
lldb::pid_t pid, // The process ID to attach to
SBError &error // An error explaining what went wrong if attach fails
) {
LLDB_INSTRUMENT_VA(this, listener, pid, error);
SBProcess sb_process;
TargetSP target_sp(GetSP());
if (target_sp) {
ProcessAttachInfo attach_info;
attach_info.SetProcessID(pid);
if (listener.IsValid())
attach_info.SetListener(listener.GetSP());
ProcessInstanceInfo instance_info;
if (target_sp->GetPlatform()->GetProcessInfo(pid, instance_info))
attach_info.SetUserID(instance_info.GetEffectiveUserID());
error.SetError(AttachToProcess(attach_info, *target_sp));
if (error.Success())
sb_process.SetSP(target_sp->GetProcessSP());
} else
error.SetErrorString("SBTarget is invalid");
2022-01-10 14:54:08 +08:00
return sb_process;
}
lldb::SBProcess SBTarget::AttachToProcessWithName(
SBListener &listener,
const char *name, // basename of process to attach to
bool wait_for, // if true wait for a new instance of "name" to be launched
SBError &error // An error explaining what went wrong if attach fails
) {
LLDB_INSTRUMENT_VA(this, listener, name, wait_for, error);
SBProcess sb_process;
TargetSP target_sp(GetSP());
if (name && target_sp) {
ProcessAttachInfo attach_info;
attach_info.GetExecutableFile().SetFile(name, FileSpec::Style::native);
attach_info.SetWaitForLaunch(wait_for);
if (listener.IsValid())
attach_info.SetListener(listener.GetSP());
error.SetError(AttachToProcess(attach_info, *target_sp));
if (error.Success())
sb_process.SetSP(target_sp->GetProcessSP());
} else
error.SetErrorString("SBTarget is invalid");
2022-01-10 14:54:08 +08:00
return sb_process;
}
lldb::SBProcess SBTarget::ConnectRemote(SBListener &listener, const char *url,
const char *plugin_name,
SBError &error) {
LLDB_INSTRUMENT_VA(this, listener, url, plugin_name, error);
SBProcess sb_process;
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
ProcessSP process_sp;
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
if (listener.IsValid())
process_sp =
target_sp->CreateProcess(listener.m_opaque_sp, plugin_name, nullptr,
true);
else
process_sp = target_sp->CreateProcess(
target_sp->GetDebugger().GetListener(), plugin_name, nullptr, true);
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
if (process_sp) {
sb_process.SetSP(process_sp);
error.SetError(process_sp->ConnectRemote(url));
} else {
error.SetErrorString("unable to create lldb_private::Process");
}
} else {
error.SetErrorString("SBTarget is invalid");
}
2022-01-10 14:54:08 +08:00
return sb_process;
}
SBFileSpec SBTarget::GetExecutable() {
LLDB_INSTRUMENT_VA(this);
SBFileSpec exe_file_spec;
TargetSP target_sp(GetSP());
if (target_sp) {
Module *exe_module = target_sp->GetExecutableModulePointer();
if (exe_module)
exe_file_spec.SetFileSpec(exe_module->GetFileSpec());
}
2022-01-10 14:54:08 +08:00
return exe_file_spec;
}
bool SBTarget::operator==(const SBTarget &rhs) const {
LLDB_INSTRUMENT_VA(this, rhs);
return m_opaque_sp.get() == rhs.m_opaque_sp.get();
}
bool SBTarget::operator!=(const SBTarget &rhs) const {
LLDB_INSTRUMENT_VA(this, rhs);
return m_opaque_sp.get() != rhs.m_opaque_sp.get();
}
lldb::TargetSP SBTarget::GetSP() const { return m_opaque_sp; }
void SBTarget::SetSP(const lldb::TargetSP &target_sp) {
m_opaque_sp = target_sp;
}
lldb::SBAddress SBTarget::ResolveLoadAddress(lldb::addr_t vm_addr) {
LLDB_INSTRUMENT_VA(this, vm_addr);
lldb::SBAddress sb_addr;
Address &addr = sb_addr.ref();
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
if (target_sp->ResolveLoadAddress(vm_addr, addr))
2022-01-10 14:54:08 +08:00
return sb_addr;
}
// We have a load address that isn't in a section, just return an address
// with the offset filled in (the address) and the section set to NULL
addr.SetRawAddress(vm_addr);
2022-01-10 14:54:08 +08:00
return sb_addr;
}
lldb::SBAddress SBTarget::ResolveFileAddress(lldb::addr_t file_addr) {
LLDB_INSTRUMENT_VA(this, file_addr);
lldb::SBAddress sb_addr;
Address &addr = sb_addr.ref();
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
if (target_sp->ResolveFileAddress(file_addr, addr))
2022-01-10 14:54:08 +08:00
return sb_addr;
}
addr.SetRawAddress(file_addr);
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return sb_addr;
}
lldb::SBAddress SBTarget::ResolvePastLoadAddress(uint32_t stop_id,
lldb::addr_t vm_addr) {
LLDB_INSTRUMENT_VA(this, stop_id, vm_addr);
lldb::SBAddress sb_addr;
Address &addr = sb_addr.ref();
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
if (target_sp->ResolveLoadAddress(vm_addr, addr))
2022-01-10 14:54:08 +08:00
return sb_addr;
}
// We have a load address that isn't in a section, just return an address
// with the offset filled in (the address) and the section set to NULL
addr.SetRawAddress(vm_addr);
2022-01-10 14:54:08 +08:00
return sb_addr;
}
SBSymbolContext
SBTarget::ResolveSymbolContextForAddress(const SBAddress &addr,
uint32_t resolve_scope) {
LLDB_INSTRUMENT_VA(this, addr, resolve_scope);
SBSymbolContext sc;
SymbolContextItem scope = static_cast<SymbolContextItem>(resolve_scope);
if (addr.IsValid()) {
TargetSP target_sp(GetSP());
if (target_sp)
target_sp->GetImages().ResolveSymbolContextForAddress(addr.ref(), scope,
sc.ref());
}
2022-01-10 14:54:08 +08:00
return sc;
}
size_t SBTarget::ReadMemory(const SBAddress addr, void *buf, size_t size,
lldb::SBError &error) {
LLDB_INSTRUMENT_VA(this, addr, buf, size, error);
SBError sb_error;
size_t bytes_read = 0;
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
bytes_read =
target_sp->ReadMemory(addr.ref(), buf, size, sb_error.ref(), true);
} else {
sb_error.SetErrorString("invalid target");
}
return bytes_read;
}
SBBreakpoint SBTarget::BreakpointCreateByLocation(const char *file,
uint32_t line) {
LLDB_INSTRUMENT_VA(this, file, line);
2022-01-10 14:54:08 +08:00
return SBBreakpoint(
BreakpointCreateByLocation(SBFileSpec(file, false), line));
}
SBBreakpoint
SBTarget::BreakpointCreateByLocation(const SBFileSpec &sb_file_spec,
uint32_t line) {
LLDB_INSTRUMENT_VA(this, sb_file_spec, line);
2022-01-10 14:54:08 +08:00
return BreakpointCreateByLocation(sb_file_spec, line, 0);
}
SBBreakpoint
SBTarget::BreakpointCreateByLocation(const SBFileSpec &sb_file_spec,
uint32_t line, lldb::addr_t offset) {
LLDB_INSTRUMENT_VA(this, sb_file_spec, line, offset);
SBFileSpecList empty_list;
2022-01-10 14:54:08 +08:00
return BreakpointCreateByLocation(sb_file_spec, line, offset, empty_list);
}
SBBreakpoint
SBTarget::BreakpointCreateByLocation(const SBFileSpec &sb_file_spec,
uint32_t line, lldb::addr_t offset,
SBFileSpecList &sb_module_list) {
LLDB_INSTRUMENT_VA(this, sb_file_spec, line, offset, sb_module_list);
2022-01-10 14:54:08 +08:00
return BreakpointCreateByLocation(sb_file_spec, line, 0, offset,
sb_module_list);
}
SBBreakpoint SBTarget::BreakpointCreateByLocation(
const SBFileSpec &sb_file_spec, uint32_t line, uint32_t column,
lldb::addr_t offset, SBFileSpecList &sb_module_list) {
LLDB_INSTRUMENT_VA(this, sb_file_spec, line, column, offset, sb_module_list);
SBBreakpoint sb_bp;
TargetSP target_sp(GetSP());
if (target_sp && line != 0) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
<rdar://problem/11757916> Make breakpoint setting by file and line much more efficient by only looking for inlined breakpoint locations if we are setting a breakpoint in anything but a source implementation file. Implementing this complex for a many reasons. Turns out that parsing compile units lazily had some issues with respect to how we need to do things with DWARF in .o files. So the fixes in the checkin for this makes these changes: - Add a new setting called "target.inline-breakpoint-strategy" which can be set to "never", "always", or "headers". "never" will never try and set any inlined breakpoints (fastest). "always" always looks for inlined breakpoint locations (slowest, but most accurate). "headers", which is the default setting, will only look for inlined breakpoint locations if the breakpoint is set in what are consudered to be header files, which is realy defined as "not in an implementation source file". - modify the breakpoint setting by file and line to check the current "target.inline-breakpoint-strategy" setting and act accordingly - Modify compile units to be able to get their language and other info lazily. This allows us to create compile units from the debug map and not have to fill all of the details in, and then lazily discover this information as we go on debuggging. This is needed to avoid parsing all .o files when setting breakpoints in implementation only files (no inlines). Otherwise we would need to parse the .o file, the object file (mach-o in our case) and the symbol file (DWARF in the object file) just to see what the compile unit was. - modify the "SymbolFileDWARFDebugMap" to subclass lldb_private::Module so that the virtual "GetObjectFile()" and "GetSymbolVendor()" functions can be intercepted when the .o file contenst are later lazilly needed. Prior to this fix, when we first instantiated the "SymbolFileDWARFDebugMap" class, we would also make modules, object files and symbol files for every .o file in the debug map because we needed to fix up the sections in the .o files with information that is in the executable debug map. Now we lazily do this in the DebugMapModule::GetObjectFile() Cleaned up header includes a bit as well. llvm-svn: 162860
2012-08-30 05:13:06 +08:00
const LazyBool check_inlines = eLazyBoolCalculate;
const LazyBool skip_prologue = eLazyBoolCalculate;
<rdar://problem/11757916> Make breakpoint setting by file and line much more efficient by only looking for inlined breakpoint locations if we are setting a breakpoint in anything but a source implementation file. Implementing this complex for a many reasons. Turns out that parsing compile units lazily had some issues with respect to how we need to do things with DWARF in .o files. So the fixes in the checkin for this makes these changes: - Add a new setting called "target.inline-breakpoint-strategy" which can be set to "never", "always", or "headers". "never" will never try and set any inlined breakpoints (fastest). "always" always looks for inlined breakpoint locations (slowest, but most accurate). "headers", which is the default setting, will only look for inlined breakpoint locations if the breakpoint is set in what are consudered to be header files, which is realy defined as "not in an implementation source file". - modify the breakpoint setting by file and line to check the current "target.inline-breakpoint-strategy" setting and act accordingly - Modify compile units to be able to get their language and other info lazily. This allows us to create compile units from the debug map and not have to fill all of the details in, and then lazily discover this information as we go on debuggging. This is needed to avoid parsing all .o files when setting breakpoints in implementation only files (no inlines). Otherwise we would need to parse the .o file, the object file (mach-o in our case) and the symbol file (DWARF in the object file) just to see what the compile unit was. - modify the "SymbolFileDWARFDebugMap" to subclass lldb_private::Module so that the virtual "GetObjectFile()" and "GetSymbolVendor()" functions can be intercepted when the .o file contenst are later lazilly needed. Prior to this fix, when we first instantiated the "SymbolFileDWARFDebugMap" class, we would also make modules, object files and symbol files for every .o file in the debug map because we needed to fix up the sections in the .o files with information that is in the executable debug map. Now we lazily do this in the DebugMapModule::GetObjectFile() Cleaned up header includes a bit as well. llvm-svn: 162860
2012-08-30 05:13:06 +08:00
const bool internal = false;
const bool hardware = false;
const LazyBool move_to_nearest_code = eLazyBoolCalculate;
const FileSpecList *module_list = nullptr;
if (sb_module_list.GetSize() > 0) {
module_list = sb_module_list.get();
}
sb_bp = target_sp->CreateBreakpoint(
module_list, *sb_file_spec, line, column, offset, check_inlines,
skip_prologue, internal, hardware, move_to_nearest_code);
}
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return sb_bp;
}
SBBreakpoint SBTarget::BreakpointCreateByLocation(
const SBFileSpec &sb_file_spec, uint32_t line, uint32_t column,
lldb::addr_t offset, SBFileSpecList &sb_module_list,
bool move_to_nearest_code) {
LLDB_INSTRUMENT_VA(this, sb_file_spec, line, column, offset, sb_module_list,
move_to_nearest_code);
SBBreakpoint sb_bp;
TargetSP target_sp(GetSP());
if (target_sp && line != 0) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
const LazyBool check_inlines = eLazyBoolCalculate;
const LazyBool skip_prologue = eLazyBoolCalculate;
const bool internal = false;
const bool hardware = false;
const FileSpecList *module_list = nullptr;
if (sb_module_list.GetSize() > 0) {
module_list = sb_module_list.get();
}
sb_bp = target_sp->CreateBreakpoint(
module_list, *sb_file_spec, line, column, offset, check_inlines,
skip_prologue, internal, hardware,
move_to_nearest_code ? eLazyBoolYes : eLazyBoolNo);
}
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return sb_bp;
}
SBBreakpoint SBTarget::BreakpointCreateByName(const char *symbol_name,
const char *module_name) {
LLDB_INSTRUMENT_VA(this, symbol_name, module_name);
SBBreakpoint sb_bp;
TargetSP target_sp(GetSP());
if (target_sp.get()) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
<rdar://problem/11757916> Make breakpoint setting by file and line much more efficient by only looking for inlined breakpoint locations if we are setting a breakpoint in anything but a source implementation file. Implementing this complex for a many reasons. Turns out that parsing compile units lazily had some issues with respect to how we need to do things with DWARF in .o files. So the fixes in the checkin for this makes these changes: - Add a new setting called "target.inline-breakpoint-strategy" which can be set to "never", "always", or "headers". "never" will never try and set any inlined breakpoints (fastest). "always" always looks for inlined breakpoint locations (slowest, but most accurate). "headers", which is the default setting, will only look for inlined breakpoint locations if the breakpoint is set in what are consudered to be header files, which is realy defined as "not in an implementation source file". - modify the breakpoint setting by file and line to check the current "target.inline-breakpoint-strategy" setting and act accordingly - Modify compile units to be able to get their language and other info lazily. This allows us to create compile units from the debug map and not have to fill all of the details in, and then lazily discover this information as we go on debuggging. This is needed to avoid parsing all .o files when setting breakpoints in implementation only files (no inlines). Otherwise we would need to parse the .o file, the object file (mach-o in our case) and the symbol file (DWARF in the object file) just to see what the compile unit was. - modify the "SymbolFileDWARFDebugMap" to subclass lldb_private::Module so that the virtual "GetObjectFile()" and "GetSymbolVendor()" functions can be intercepted when the .o file contenst are later lazilly needed. Prior to this fix, when we first instantiated the "SymbolFileDWARFDebugMap" class, we would also make modules, object files and symbol files for every .o file in the debug map because we needed to fix up the sections in the .o files with information that is in the executable debug map. Now we lazily do this in the DebugMapModule::GetObjectFile() Cleaned up header includes a bit as well. llvm-svn: 162860
2012-08-30 05:13:06 +08:00
const bool internal = false;
const bool hardware = false;
const LazyBool skip_prologue = eLazyBoolCalculate;
const lldb::addr_t offset = 0;
if (module_name && module_name[0]) {
FileSpecList module_spec_list;
module_spec_list.Append(FileSpec(module_name));
sb_bp = target_sp->CreateBreakpoint(
&module_spec_list, nullptr, symbol_name, eFunctionNameTypeAuto,
eLanguageTypeUnknown, offset, skip_prologue, internal, hardware);
} else {
sb_bp = target_sp->CreateBreakpoint(
nullptr, nullptr, symbol_name, eFunctionNameTypeAuto,
eLanguageTypeUnknown, offset, skip_prologue, internal, hardware);
}
}
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return sb_bp;
}
lldb::SBBreakpoint
SBTarget::BreakpointCreateByName(const char *symbol_name,
const SBFileSpecList &module_list,
const SBFileSpecList &comp_unit_list) {
LLDB_INSTRUMENT_VA(this, symbol_name, module_list, comp_unit_list);
lldb::FunctionNameType name_type_mask = eFunctionNameTypeAuto;
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return BreakpointCreateByName(symbol_name, name_type_mask,
eLanguageTypeUnknown, module_list,
comp_unit_list);
}
lldb::SBBreakpoint SBTarget::BreakpointCreateByName(
Removed all of the "#ifndef SWIG" from the SB header files since we are using interface (.i) files for each class. Changed the FindFunction class from: uint32_t SBTarget::FindFunctions (const char *name, uint32_t name_type_mask, bool append, lldb::SBSymbolContextList& sc_list) uint32_t SBModule::FindFunctions (const char *name, uint32_t name_type_mask, bool append, lldb::SBSymbolContextList& sc_list) To: lldb::SBSymbolContextList SBTarget::FindFunctions (const char *name, uint32_t name_type_mask = lldb::eFunctionNameTypeAny); lldb::SBSymbolContextList SBModule::FindFunctions (const char *name, uint32_t name_type_mask = lldb::eFunctionNameTypeAny); This makes the API easier to use from python. Also added the ability to append a SBSymbolContext or a SBSymbolContextList to a SBSymbolContextList. Exposed properties for lldb.SBSymbolContextList in python: lldb.SBSymbolContextList.modules => list() or all lldb.SBModule objects in the list lldb.SBSymbolContextList.compile_units => list() or all lldb.SBCompileUnits objects in the list lldb.SBSymbolContextList.functions => list() or all lldb.SBFunction objects in the list lldb.SBSymbolContextList.blocks => list() or all lldb.SBBlock objects in the list lldb.SBSymbolContextList.line_entries => list() or all lldb.SBLineEntry objects in the list lldb.SBSymbolContextList.symbols => list() or all lldb.SBSymbol objects in the list This allows a call to the SBTarget::FindFunctions(...) and SBModule::FindFunctions(...) and then the result can be used to extract the desired information: sc_list = lldb.target.FindFunctions("erase") for function in sc_list.functions: print function for symbol in sc_list.symbols: print symbol Exposed properties for the lldb.SBSymbolContext objects in python: lldb.SBSymbolContext.module => lldb.SBModule lldb.SBSymbolContext.compile_unit => lldb.SBCompileUnit lldb.SBSymbolContext.function => lldb.SBFunction lldb.SBSymbolContext.block => lldb.SBBlock lldb.SBSymbolContext.line_entry => lldb.SBLineEntry lldb.SBSymbolContext.symbol => lldb.SBSymbol Exposed properties for the lldb.SBBlock objects in python: lldb.SBBlock.parent => lldb.SBBlock for the parent block that contains lldb.SBBlock.sibling => lldb.SBBlock for the sibling block to the current block lldb.SBBlock.first_child => lldb.SBBlock for the first child block to the current block lldb.SBBlock.call_site => for inline functions, return a lldb.declaration object that gives the call site file, line and column lldb.SBBlock.name => for inline functions this is the name of the inline function that this block represents lldb.SBBlock.inlined_block => returns the inlined function block that contains this block (might return itself if the current block is an inlined block) lldb.SBBlock.range[int] => access the address ranges for a block by index, a list() with start and end address is returned lldb.SBBlock.ranges => an array or all address ranges for this block lldb.SBBlock.num_ranges => the number of address ranges for this blcok SBFunction objects can now get the SBType and the SBBlock that represents the top scope of the function. SBBlock objects can now get the variable list from the current block. The value list returned allows varaibles to be viewed prior with no process if code wants to check the variables in a function. There are two ways to get a variable list from a SBBlock: lldb::SBValueList SBBlock::GetVariables (lldb::SBFrame& frame, bool arguments, bool locals, bool statics, lldb::DynamicValueType use_dynamic); lldb::SBValueList SBBlock::GetVariables (lldb::SBTarget& target, bool arguments, bool locals, bool statics); When a SBFrame is used, the values returned will be locked down to the frame and the values will be evaluated in the context of that frame. When a SBTarget is used, global an static variables can be viewed without a running process. llvm-svn: 149853
2012-02-06 09:44:54 +08:00
const char *symbol_name, uint32_t name_type_mask,
const SBFileSpecList &module_list, const SBFileSpecList &comp_unit_list) {
LLDB_INSTRUMENT_VA(this, symbol_name, name_type_mask, module_list,
comp_unit_list);
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return BreakpointCreateByName(symbol_name, name_type_mask,
eLanguageTypeUnknown, module_list,
comp_unit_list);
}
lldb::SBBreakpoint SBTarget::BreakpointCreateByName(
const char *symbol_name, uint32_t name_type_mask,
LanguageType symbol_language, const SBFileSpecList &module_list,
const SBFileSpecList &comp_unit_list) {
LLDB_INSTRUMENT_VA(this, symbol_name, name_type_mask, symbol_language,
module_list, comp_unit_list);
SBBreakpoint sb_bp;
TargetSP target_sp(GetSP());
if (target_sp && symbol_name && symbol_name[0]) {
<rdar://problem/11757916> Make breakpoint setting by file and line much more efficient by only looking for inlined breakpoint locations if we are setting a breakpoint in anything but a source implementation file. Implementing this complex for a many reasons. Turns out that parsing compile units lazily had some issues with respect to how we need to do things with DWARF in .o files. So the fixes in the checkin for this makes these changes: - Add a new setting called "target.inline-breakpoint-strategy" which can be set to "never", "always", or "headers". "never" will never try and set any inlined breakpoints (fastest). "always" always looks for inlined breakpoint locations (slowest, but most accurate). "headers", which is the default setting, will only look for inlined breakpoint locations if the breakpoint is set in what are consudered to be header files, which is realy defined as "not in an implementation source file". - modify the breakpoint setting by file and line to check the current "target.inline-breakpoint-strategy" setting and act accordingly - Modify compile units to be able to get their language and other info lazily. This allows us to create compile units from the debug map and not have to fill all of the details in, and then lazily discover this information as we go on debuggging. This is needed to avoid parsing all .o files when setting breakpoints in implementation only files (no inlines). Otherwise we would need to parse the .o file, the object file (mach-o in our case) and the symbol file (DWARF in the object file) just to see what the compile unit was. - modify the "SymbolFileDWARFDebugMap" to subclass lldb_private::Module so that the virtual "GetObjectFile()" and "GetSymbolVendor()" functions can be intercepted when the .o file contenst are later lazilly needed. Prior to this fix, when we first instantiated the "SymbolFileDWARFDebugMap" class, we would also make modules, object files and symbol files for every .o file in the debug map because we needed to fix up the sections in the .o files with information that is in the executable debug map. Now we lazily do this in the DebugMapModule::GetObjectFile() Cleaned up header includes a bit as well. llvm-svn: 162860
2012-08-30 05:13:06 +08:00
const bool internal = false;
const bool hardware = false;
const LazyBool skip_prologue = eLazyBoolCalculate;
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
FunctionNameType mask = static_cast<FunctionNameType>(name_type_mask);
sb_bp = target_sp->CreateBreakpoint(module_list.get(), comp_unit_list.get(),
symbol_name, mask, symbol_language, 0,
skip_prologue, internal, hardware);
}
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return sb_bp;
}
lldb::SBBreakpoint SBTarget::BreakpointCreateByNames(
const char *symbol_names[], uint32_t num_names, uint32_t name_type_mask,
const SBFileSpecList &module_list, const SBFileSpecList &comp_unit_list) {
LLDB_INSTRUMENT_VA(this, symbol_names, num_names, name_type_mask, module_list,
comp_unit_list);
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return BreakpointCreateByNames(symbol_names, num_names, name_type_mask,
eLanguageTypeUnknown, module_list,
comp_unit_list);
}
lldb::SBBreakpoint SBTarget::BreakpointCreateByNames(
const char *symbol_names[], uint32_t num_names, uint32_t name_type_mask,
LanguageType symbol_language, const SBFileSpecList &module_list,
const SBFileSpecList &comp_unit_list) {
LLDB_INSTRUMENT_VA(this, symbol_names, num_names, name_type_mask,
symbol_language, module_list, comp_unit_list);
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return BreakpointCreateByNames(symbol_names, num_names, name_type_mask,
eLanguageTypeUnknown, 0, module_list,
comp_unit_list);
}
lldb::SBBreakpoint SBTarget::BreakpointCreateByNames(
const char *symbol_names[], uint32_t num_names, uint32_t name_type_mask,
LanguageType symbol_language, lldb::addr_t offset,
const SBFileSpecList &module_list, const SBFileSpecList &comp_unit_list) {
LLDB_INSTRUMENT_VA(this, symbol_names, num_names, name_type_mask,
symbol_language, offset, module_list, comp_unit_list);
SBBreakpoint sb_bp;
TargetSP target_sp(GetSP());
if (target_sp && num_names > 0) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
<rdar://problem/11757916> Make breakpoint setting by file and line much more efficient by only looking for inlined breakpoint locations if we are setting a breakpoint in anything but a source implementation file. Implementing this complex for a many reasons. Turns out that parsing compile units lazily had some issues with respect to how we need to do things with DWARF in .o files. So the fixes in the checkin for this makes these changes: - Add a new setting called "target.inline-breakpoint-strategy" which can be set to "never", "always", or "headers". "never" will never try and set any inlined breakpoints (fastest). "always" always looks for inlined breakpoint locations (slowest, but most accurate). "headers", which is the default setting, will only look for inlined breakpoint locations if the breakpoint is set in what are consudered to be header files, which is realy defined as "not in an implementation source file". - modify the breakpoint setting by file and line to check the current "target.inline-breakpoint-strategy" setting and act accordingly - Modify compile units to be able to get their language and other info lazily. This allows us to create compile units from the debug map and not have to fill all of the details in, and then lazily discover this information as we go on debuggging. This is needed to avoid parsing all .o files when setting breakpoints in implementation only files (no inlines). Otherwise we would need to parse the .o file, the object file (mach-o in our case) and the symbol file (DWARF in the object file) just to see what the compile unit was. - modify the "SymbolFileDWARFDebugMap" to subclass lldb_private::Module so that the virtual "GetObjectFile()" and "GetSymbolVendor()" functions can be intercepted when the .o file contenst are later lazilly needed. Prior to this fix, when we first instantiated the "SymbolFileDWARFDebugMap" class, we would also make modules, object files and symbol files for every .o file in the debug map because we needed to fix up the sections in the .o files with information that is in the executable debug map. Now we lazily do this in the DebugMapModule::GetObjectFile() Cleaned up header includes a bit as well. llvm-svn: 162860
2012-08-30 05:13:06 +08:00
const bool internal = false;
const bool hardware = false;
FunctionNameType mask = static_cast<FunctionNameType>(name_type_mask);
const LazyBool skip_prologue = eLazyBoolCalculate;
sb_bp = target_sp->CreateBreakpoint(
module_list.get(), comp_unit_list.get(), symbol_names, num_names, mask,
symbol_language, offset, skip_prologue, internal, hardware);
}
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return sb_bp;
}
SBBreakpoint SBTarget::BreakpointCreateByRegex(const char *symbol_name_regex,
const char *module_name) {
LLDB_INSTRUMENT_VA(this, symbol_name_regex, module_name);
SBFileSpecList module_spec_list;
SBFileSpecList comp_unit_list;
if (module_name && module_name[0]) {
module_spec_list.Append(FileSpec(module_name));
}
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return BreakpointCreateByRegex(symbol_name_regex, eLanguageTypeUnknown,
module_spec_list, comp_unit_list);
}
lldb::SBBreakpoint
SBTarget::BreakpointCreateByRegex(const char *symbol_name_regex,
const SBFileSpecList &module_list,
const SBFileSpecList &comp_unit_list) {
LLDB_INSTRUMENT_VA(this, symbol_name_regex, module_list, comp_unit_list);
2022-01-10 14:54:08 +08:00
return BreakpointCreateByRegex(symbol_name_regex, eLanguageTypeUnknown,
module_list, comp_unit_list);
}
lldb::SBBreakpoint SBTarget::BreakpointCreateByRegex(
const char *symbol_name_regex, LanguageType symbol_language,
const SBFileSpecList &module_list, const SBFileSpecList &comp_unit_list) {
LLDB_INSTRUMENT_VA(this, symbol_name_regex, symbol_language, module_list,
comp_unit_list);
SBBreakpoint sb_bp;
TargetSP target_sp(GetSP());
if (target_sp && symbol_name_regex && symbol_name_regex[0]) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
RegularExpression regexp((llvm::StringRef(symbol_name_regex)));
const bool internal = false;
const bool hardware = false;
const LazyBool skip_prologue = eLazyBoolCalculate;
sb_bp = target_sp->CreateFuncRegexBreakpoint(
module_list.get(), comp_unit_list.get(), std::move(regexp),
symbol_language, skip_prologue, internal, hardware);
}
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return sb_bp;
}
SBBreakpoint SBTarget::BreakpointCreateByAddress(addr_t address) {
LLDB_INSTRUMENT_VA(this, address);
SBBreakpoint sb_bp;
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
const bool hardware = false;
sb_bp = target_sp->CreateBreakpoint(address, false, hardware);
}
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return sb_bp;
}
SBBreakpoint SBTarget::BreakpointCreateBySBAddress(SBAddress &sb_address) {
LLDB_INSTRUMENT_VA(this, sb_address);
SBBreakpoint sb_bp;
TargetSP target_sp(GetSP());
if (!sb_address.IsValid()) {
2022-01-10 14:54:08 +08:00
return sb_bp;
}
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
const bool hardware = false;
sb_bp = target_sp->CreateBreakpoint(sb_address.ref(), false, hardware);
}
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return sb_bp;
}
lldb::SBBreakpoint
SBTarget::BreakpointCreateBySourceRegex(const char *source_regex,
const lldb::SBFileSpec &source_file,
const char *module_name) {
LLDB_INSTRUMENT_VA(this, source_regex, source_file, module_name);
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
SBFileSpecList module_spec_list;
if (module_name && module_name[0]) {
module_spec_list.Append(FileSpec(module_name));
}
SBFileSpecList source_file_list;
if (source_file.IsValid()) {
source_file_list.Append(source_file);
}
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return BreakpointCreateBySourceRegex(source_regex, module_spec_list,
source_file_list);
}
lldb::SBBreakpoint SBTarget::BreakpointCreateBySourceRegex(
const char *source_regex, const SBFileSpecList &module_list,
const lldb::SBFileSpecList &source_file_list) {
LLDB_INSTRUMENT_VA(this, source_regex, module_list, source_file_list);
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return BreakpointCreateBySourceRegex(source_regex, module_list,
source_file_list, SBStringList());
}
lldb::SBBreakpoint SBTarget::BreakpointCreateBySourceRegex(
const char *source_regex, const SBFileSpecList &module_list,
const lldb::SBFileSpecList &source_file_list,
const SBStringList &func_names) {
LLDB_INSTRUMENT_VA(this, source_regex, module_list, source_file_list,
func_names);
SBBreakpoint sb_bp;
TargetSP target_sp(GetSP());
if (target_sp && source_regex && source_regex[0]) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
const bool hardware = false;
const LazyBool move_to_nearest_code = eLazyBoolCalculate;
RegularExpression regexp((llvm::StringRef(source_regex)));
std::unordered_set<std::string> func_names_set;
for (size_t i = 0; i < func_names.GetSize(); i++) {
func_names_set.insert(func_names.GetStringAtIndex(i));
}
sb_bp = target_sp->CreateSourceRegexBreakpoint(
module_list.get(), source_file_list.get(), func_names_set,
std::move(regexp), false, hardware, move_to_nearest_code);
}
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return sb_bp;
}
lldb::SBBreakpoint
SBTarget::BreakpointCreateForException(lldb::LanguageType language,
bool catch_bp, bool throw_bp) {
LLDB_INSTRUMENT_VA(this, language, catch_bp, throw_bp);
SBBreakpoint sb_bp;
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
const bool hardware = false;
sb_bp = target_sp->CreateExceptionBreakpoint(language, catch_bp, throw_bp,
hardware);
}
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return sb_bp;
}
lldb::SBBreakpoint SBTarget::BreakpointCreateFromScript(
const char *class_name, SBStructuredData &extra_args,
const SBFileSpecList &module_list, const SBFileSpecList &file_list,
bool request_hardware) {
LLDB_INSTRUMENT_VA(this, class_name, extra_args, module_list, file_list,
request_hardware);
SBBreakpoint sb_bp;
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
Status error;
StructuredData::ObjectSP obj_sp = extra_args.m_impl_up->GetObjectSP();
sb_bp =
target_sp->CreateScriptedBreakpoint(class_name,
module_list.get(),
file_list.get(),
false, /* internal */
request_hardware,
obj_sp,
&error);
}
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return sb_bp;
}
uint32_t SBTarget::GetNumBreakpoints() const {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if (target_sp) {
// The breakpoint list is thread safe, no need to lock
return target_sp->GetBreakpointList().GetSize();
}
return 0;
}
SBBreakpoint SBTarget::GetBreakpointAtIndex(uint32_t idx) const {
LLDB_INSTRUMENT_VA(this, idx);
SBBreakpoint sb_breakpoint;
TargetSP target_sp(GetSP());
if (target_sp) {
// The breakpoint list is thread safe, no need to lock
sb_breakpoint = target_sp->GetBreakpointList().GetBreakpointAtIndex(idx);
}
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return sb_breakpoint;
}
bool SBTarget::BreakpointDelete(break_id_t bp_id) {
LLDB_INSTRUMENT_VA(this, bp_id);
bool result = false;
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
result = target_sp->RemoveBreakpointByID(bp_id);
}
return result;
}
SBBreakpoint SBTarget::FindBreakpointByID(break_id_t bp_id) {
LLDB_INSTRUMENT_VA(this, bp_id);
SBBreakpoint sb_breakpoint;
TargetSP target_sp(GetSP());
if (target_sp && bp_id != LLDB_INVALID_BREAK_ID) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
sb_breakpoint = target_sp->GetBreakpointByID(bp_id);
}
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return sb_breakpoint;
}
bool SBTarget::FindBreakpointsByName(const char *name,
SBBreakpointList &bkpts) {
LLDB_INSTRUMENT_VA(this, name, bkpts);
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
llvm::Expected<std::vector<BreakpointSP>> expected_vector =
target_sp->GetBreakpointList().FindBreakpointsByName(name);
if (!expected_vector) {
LLDB_LOG(GetLog(LLDBLog::Breakpoints), "invalid breakpoint name: {}",
llvm::toString(expected_vector.takeError()));
return false;
}
for (BreakpointSP bkpt_sp : *expected_vector) {
bkpts.AppendByID(bkpt_sp->GetID());
}
}
return true;
}
void SBTarget::GetBreakpointNames(SBStringList &names) {
LLDB_INSTRUMENT_VA(this, names);
names.Clear();
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
std::vector<std::string> name_vec;
target_sp->GetBreakpointNames(name_vec);
for (auto name : name_vec)
names.AppendString(name.c_str());
}
}
void SBTarget::DeleteBreakpointName(const char *name) {
LLDB_INSTRUMENT_VA(this, name);
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
target_sp->DeleteBreakpointName(ConstString(name));
}
}
bool SBTarget::EnableAllBreakpoints() {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
target_sp->EnableAllowedBreakpoints();
return true;
}
return false;
}
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
bool SBTarget::DisableAllBreakpoints() {
LLDB_INSTRUMENT_VA(this);
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
target_sp->DisableAllowedBreakpoints();
return true;
}
return false;
}
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
bool SBTarget::DeleteAllBreakpoints() {
LLDB_INSTRUMENT_VA(this);
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
target_sp->RemoveAllowedBreakpoints();
return true;
}
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
return false;
}
lldb::SBError SBTarget::BreakpointsCreateFromFile(SBFileSpec &source_file,
SBBreakpointList &new_bps) {
LLDB_INSTRUMENT_VA(this, source_file, new_bps);
SBStringList empty_name_list;
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return BreakpointsCreateFromFile(source_file, empty_name_list, new_bps);
}
lldb::SBError SBTarget::BreakpointsCreateFromFile(SBFileSpec &source_file,
SBStringList &matching_names,
SBBreakpointList &new_bps) {
LLDB_INSTRUMENT_VA(this, source_file, matching_names, new_bps);
SBError sberr;
TargetSP target_sp(GetSP());
if (!target_sp) {
sberr.SetErrorString(
"BreakpointCreateFromFile called with invalid target.");
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return sberr;
}
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
BreakpointIDList bp_ids;
std::vector<std::string> name_vector;
size_t num_names = matching_names.GetSize();
for (size_t i = 0; i < num_names; i++)
name_vector.push_back(matching_names.GetStringAtIndex(i));
sberr.ref() = target_sp->CreateBreakpointsFromFile(source_file.ref(),
name_vector, bp_ids);
if (sberr.Fail())
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return sberr;
size_t num_bkpts = bp_ids.GetSize();
for (size_t i = 0; i < num_bkpts; i++) {
BreakpointID bp_id = bp_ids.GetBreakpointIDAtIndex(i);
new_bps.AppendByID(bp_id.GetBreakpointID());
}
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return sberr;
}
lldb::SBError SBTarget::BreakpointsWriteToFile(SBFileSpec &dest_file) {
LLDB_INSTRUMENT_VA(this, dest_file);
SBError sberr;
TargetSP target_sp(GetSP());
if (!target_sp) {
sberr.SetErrorString("BreakpointWriteToFile called with invalid target.");
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return sberr;
}
SBBreakpointList bkpt_list(*this);
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return BreakpointsWriteToFile(dest_file, bkpt_list);
}
lldb::SBError SBTarget::BreakpointsWriteToFile(SBFileSpec &dest_file,
SBBreakpointList &bkpt_list,
bool append) {
LLDB_INSTRUMENT_VA(this, dest_file, bkpt_list, append);
SBError sberr;
TargetSP target_sp(GetSP());
if (!target_sp) {
sberr.SetErrorString("BreakpointWriteToFile called with invalid target.");
2022-01-10 14:54:08 +08:00
return sberr;
}
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
BreakpointIDList bp_id_list;
bkpt_list.CopyToBreakpointIDList(bp_id_list);
sberr.ref() = target_sp->SerializeBreakpointsToFile(dest_file.ref(),
bp_id_list, append);
2022-01-10 14:54:08 +08:00
return sberr;
}
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
uint32_t SBTarget::GetNumWatchpoints() const {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if (target_sp) {
// The watchpoint list is thread safe, no need to lock
return target_sp->GetWatchpointList().GetSize();
}
return 0;
}
SBWatchpoint SBTarget::GetWatchpointAtIndex(uint32_t idx) const {
LLDB_INSTRUMENT_VA(this, idx);
SBWatchpoint sb_watchpoint;
TargetSP target_sp(GetSP());
if (target_sp) {
// The watchpoint list is thread safe, no need to lock
sb_watchpoint.SetSP(target_sp->GetWatchpointList().GetByIndex(idx));
}
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return sb_watchpoint;
}
bool SBTarget::DeleteWatchpoint(watch_id_t wp_id) {
LLDB_INSTRUMENT_VA(this, wp_id);
bool result = false;
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
std::unique_lock<std::recursive_mutex> lock;
target_sp->GetWatchpointList().GetListMutex(lock);
result = target_sp->RemoveWatchpointByID(wp_id);
}
return result;
}
SBWatchpoint SBTarget::FindWatchpointByID(lldb::watch_id_t wp_id) {
LLDB_INSTRUMENT_VA(this, wp_id);
SBWatchpoint sb_watchpoint;
SBFrame is now threadsafe using some extra tricks. One issue is that stack frames might go away (the object itself, not the actual logical frame) when we are single stepping due to the way we currently sometimes end up flushing frames when stepping in/out/over. They later will come back to life represented by another object yet they have the same StackID. Now when you get a lldb::SBFrame object, it will track the frame it is initialized with until the thread goes away or the StackID no longer exists in the stack for the thread it was created on. It uses a weak_ptr to both the frame and thread and also stores the StackID. These three items allow us to determine when the stack frame object has gone away (the weak_ptr will be NULL) and allows us to find the correct frame again. In our test suite we had such cases where we were just getting lucky when something like this happened: 1 - stop at breakpoint 2 - get first frame in thread where we stopped 3 - run an expression that causes the program to JIT and run code 4 - run more expressions on the frame from step 2 which was very very luckily still around inside a shared pointer, yet, not part of the current thread (a new stack frame object had appeared with the same stack ID and depth). We now avoid all such issues and properly keep up to date, or we start returning errors when the frame doesn't exist and always responds with invalid answers. Also fixed the UserSettingsController (not going to rewrite this just yet) so that it doesn't crash on shutdown. Using weak_ptr's came in real handy to track when the master controller has already gone away and this allowed me to pull out the previous NotifyOwnerIsShuttingDown() patch as it is no longer needed. llvm-svn: 149231
2012-01-30 15:41:31 +08:00
lldb::WatchpointSP watchpoint_sp;
TargetSP target_sp(GetSP());
if (target_sp && wp_id != LLDB_INVALID_WATCH_ID) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
std::unique_lock<std::recursive_mutex> lock;
target_sp->GetWatchpointList().GetListMutex(lock);
watchpoint_sp = target_sp->GetWatchpointList().FindByID(wp_id);
sb_watchpoint.SetSP(watchpoint_sp);
}
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return sb_watchpoint;
}
lldb::SBWatchpoint SBTarget::WatchAddress(lldb::addr_t addr, size_t size,
bool read, bool write,
SBError &error) {
LLDB_INSTRUMENT_VA(this, addr, size, read, write, error);
SBWatchpoint sb_watchpoint;
lldb::WatchpointSP watchpoint_sp;
TargetSP target_sp(GetSP());
if (target_sp && (read || write) && addr != LLDB_INVALID_ADDRESS &&
size > 0) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
uint32_t watch_type = 0;
if (read)
watch_type |= LLDB_WATCH_TYPE_READ;
if (write)
watch_type |= LLDB_WATCH_TYPE_WRITE;
if (watch_type == 0) {
error.SetErrorString(
"Can't create a watchpoint that is neither read nor write.");
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return sb_watchpoint;
}
// Target::CreateWatchpoint() is thread safe.
Status cw_error;
// This API doesn't take in a type, so we can't figure out what it is.
CompilerType *type = nullptr;
watchpoint_sp =
target_sp->CreateWatchpoint(addr, size, type, watch_type, cw_error);
error.SetError(cw_error);
sb_watchpoint.SetSP(watchpoint_sp);
}
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return sb_watchpoint;
}
bool SBTarget::EnableAllWatchpoints() {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
std::unique_lock<std::recursive_mutex> lock;
target_sp->GetWatchpointList().GetListMutex(lock);
target_sp->EnableAllWatchpoints();
return true;
}
return false;
}
bool SBTarget::DisableAllWatchpoints() {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
std::unique_lock<std::recursive_mutex> lock;
target_sp->GetWatchpointList().GetListMutex(lock);
target_sp->DisableAllWatchpoints();
return true;
}
return false;
}
SBValue SBTarget::CreateValueFromAddress(const char *name, SBAddress addr,
SBType type) {
LLDB_INSTRUMENT_VA(this, name, addr, type);
SBValue sb_value;
lldb::ValueObjectSP new_value_sp;
if (IsValid() && name && *name && addr.IsValid() && type.IsValid()) {
lldb::addr_t load_addr(addr.GetLoadAddress(*this));
ExecutionContext exe_ctx(
ExecutionContextRef(ExecutionContext(m_opaque_sp.get(), false)));
CompilerType ast_type(type.GetSP()->GetCompilerType(true));
new_value_sp = ValueObject::CreateValueObjectFromAddress(name, load_addr,
exe_ctx, ast_type);
}
sb_value.SetSP(new_value_sp);
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return sb_value;
}
lldb::SBValue SBTarget::CreateValueFromData(const char *name, lldb::SBData data,
lldb::SBType type) {
LLDB_INSTRUMENT_VA(this, name, data, type);
SBValue sb_value;
lldb::ValueObjectSP new_value_sp;
if (IsValid() && name && *name && data.IsValid() && type.IsValid()) {
DataExtractorSP extractor(*data);
ExecutionContext exe_ctx(
ExecutionContextRef(ExecutionContext(m_opaque_sp.get(), false)));
CompilerType ast_type(type.GetSP()->GetCompilerType(true));
new_value_sp = ValueObject::CreateValueObjectFromData(name, *extractor,
exe_ctx, ast_type);
}
sb_value.SetSP(new_value_sp);
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return sb_value;
}
lldb::SBValue SBTarget::CreateValueFromExpression(const char *name,
const char *expr) {
LLDB_INSTRUMENT_VA(this, name, expr);
SBValue sb_value;
lldb::ValueObjectSP new_value_sp;
if (IsValid() && name && *name && expr && *expr) {
ExecutionContext exe_ctx(
ExecutionContextRef(ExecutionContext(m_opaque_sp.get(), false)));
new_value_sp =
ValueObject::CreateValueObjectFromExpression(name, expr, exe_ctx);
}
sb_value.SetSP(new_value_sp);
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return sb_value;
}
bool SBTarget::DeleteAllWatchpoints() {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if (target_sp) {
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
std::unique_lock<std::recursive_mutex> lock;
target_sp->GetWatchpointList().GetListMutex(lock);
target_sp->RemoveAllWatchpoints();
return true;
}
return false;
}
void SBTarget::AppendImageSearchPath(const char *from, const char *to,
lldb::SBError &error) {
LLDB_INSTRUMENT_VA(this, from, to, error);
TargetSP target_sp(GetSP());
if (!target_sp)
return error.SetErrorString("invalid target");
llvm::StringRef srFrom = from, srTo = to;
if (srFrom.empty())
return error.SetErrorString("<from> path can't be empty");
if (srTo.empty())
return error.SetErrorString("<to> path can't be empty");
target_sp->GetImageSearchPathList().Append(srFrom, srTo, true);
}
lldb::SBModule SBTarget::AddModule(const char *path, const char *triple,
const char *uuid_cstr) {
LLDB_INSTRUMENT_VA(this, path, triple, uuid_cstr);
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return AddModule(path, triple, uuid_cstr, nullptr);
}
lldb::SBModule SBTarget::AddModule(const char *path, const char *triple,
const char *uuid_cstr, const char *symfile) {
LLDB_INSTRUMENT_VA(this, path, triple, uuid_cstr, symfile);
lldb::SBModule sb_module;
TargetSP target_sp(GetSP());
if (target_sp) {
ModuleSpec module_spec;
if (path)
module_spec.GetFileSpec().SetFile(path, FileSpec::Style::native);
if (uuid_cstr)
module_spec.GetUUID().SetFromStringRef(uuid_cstr);
if (triple)
module_spec.GetArchitecture() = Platform::GetAugmentedArchSpec(
target_sp->GetPlatform().get(), triple);
else
module_spec.GetArchitecture() = target_sp->GetArchitecture();
if (symfile)
module_spec.GetSymbolFileSpec().SetFile(symfile, FileSpec::Style::native);
sb_module.SetSP(target_sp->GetOrCreateModule(module_spec, true /* notify */));
}
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return sb_module;
}
lldb::SBModule SBTarget::AddModule(const SBModuleSpec &module_spec) {
LLDB_INSTRUMENT_VA(this, module_spec);
lldb::SBModule sb_module;
TargetSP target_sp(GetSP());
if (target_sp)
sb_module.SetSP(target_sp->GetOrCreateModule(*module_spec.m_opaque_up,
true /* notify */));
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return sb_module;
}
bool SBTarget::AddModule(lldb::SBModule &module) {
LLDB_INSTRUMENT_VA(this, module);
TargetSP target_sp(GetSP());
if (target_sp) {
target_sp->GetImages().AppendIfNeeded(module.GetSP());
return true;
}
return false;
}
uint32_t SBTarget::GetNumModules() const {
LLDB_INSTRUMENT_VA(this);
uint32_t num = 0;
TargetSP target_sp(GetSP());
if (target_sp) {
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// The module list is thread safe, no need to lock
num = target_sp->GetImages().GetSize();
}
return num;
}
void SBTarget::Clear() {
LLDB_INSTRUMENT_VA(this);
m_opaque_sp.reset();
}
SBModule SBTarget::FindModule(const SBFileSpec &sb_file_spec) {
LLDB_INSTRUMENT_VA(this, sb_file_spec);
SBModule sb_module;
TargetSP target_sp(GetSP());
if (target_sp && sb_file_spec.IsValid()) {
ModuleSpec module_spec(*sb_file_spec);
// The module list is thread safe, no need to lock
sb_module.SetSP(target_sp->GetImages().FindFirstModule(module_spec));
}
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return sb_module;
}
SBSymbolContextList SBTarget::FindCompileUnits(const SBFileSpec &sb_file_spec) {
LLDB_INSTRUMENT_VA(this, sb_file_spec);
SBSymbolContextList sb_sc_list;
const TargetSP target_sp(GetSP());
if (target_sp && sb_file_spec.IsValid())
target_sp->GetImages().FindCompileUnits(*sb_file_spec, *sb_sc_list);
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return sb_sc_list;
}
lldb::ByteOrder SBTarget::GetByteOrder() {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if (target_sp)
return target_sp->GetArchitecture().GetByteOrder();
return eByteOrderInvalid;
}
const char *SBTarget::GetTriple() {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if (target_sp) {
std::string triple(target_sp->GetArchitecture().GetTriple().str());
// Unique the string so we don't run into ownership issues since the const
// strings put the string into the string pool once and the strings never
// comes out
ConstString const_triple(triple.c_str());
return const_triple.GetCString();
}
return nullptr;
}
const char *SBTarget::GetABIName() {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if (target_sp) {
std::string abi_name(target_sp->GetABIName().str());
ConstString const_name(abi_name.c_str());
return const_name.GetCString();
}
return nullptr;
}
uint32_t SBTarget::GetDataByteSize() {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if (target_sp) {
return target_sp->GetArchitecture().GetDataByteSize();
}
return 0;
}
uint32_t SBTarget::GetCodeByteSize() {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if (target_sp) {
return target_sp->GetArchitecture().GetCodeByteSize();
}
return 0;
}
uint32_t SBTarget::GetMaximumNumberOfChildrenToDisplay() const {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if(target_sp){
return target_sp->GetMaximumNumberOfChildrenToDisplay();
}
return 0;
}
uint32_t SBTarget::GetAddressByteSize() {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if (target_sp)
return target_sp->GetArchitecture().GetAddressByteSize();
return sizeof(void *);
}
SBModule SBTarget::GetModuleAtIndex(uint32_t idx) {
LLDB_INSTRUMENT_VA(this, idx);
SBModule sb_module;
ModuleSP module_sp;
TargetSP target_sp(GetSP());
if (target_sp) {
// The module list is thread safe, no need to lock
module_sp = target_sp->GetImages().GetModuleAtIndex(idx);
sb_module.SetSP(module_sp);
}
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return sb_module;
}
bool SBTarget::RemoveModule(lldb::SBModule module) {
LLDB_INSTRUMENT_VA(this, module);
TargetSP target_sp(GetSP());
if (target_sp)
return target_sp->GetImages().Remove(module.GetSP());
return false;
}
SBBroadcaster SBTarget::GetBroadcaster() const {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
SBBroadcaster broadcaster(target_sp.get(), false);
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return broadcaster;
}
bool SBTarget::GetDescription(SBStream &description,
lldb::DescriptionLevel description_level) {
LLDB_INSTRUMENT_VA(this, description, description_level);
Stream &strm = description.ref();
TargetSP target_sp(GetSP());
if (target_sp) {
target_sp->Dump(&strm, description_level);
} else
strm.PutCString("No value");
return true;
}
lldb::SBSymbolContextList SBTarget::FindFunctions(const char *name,
uint32_t name_type_mask) {
LLDB_INSTRUMENT_VA(this, name, name_type_mask);
lldb::SBSymbolContextList sb_sc_list;
if (!name || !name[0])
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return sb_sc_list;
TargetSP target_sp(GetSP());
if (!target_sp)
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return sb_sc_list;
ModuleFunctionSearchOptions function_options;
function_options.include_symbols = true;
function_options.include_inlines = true;
FunctionNameType mask = static_cast<FunctionNameType>(name_type_mask);
target_sp->GetImages().FindFunctions(ConstString(name), mask,
function_options, *sb_sc_list);
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return sb_sc_list;
}
lldb::SBSymbolContextList SBTarget::FindGlobalFunctions(const char *name,
uint32_t max_matches,
MatchType matchtype) {
LLDB_INSTRUMENT_VA(this, name, max_matches, matchtype);
lldb::SBSymbolContextList sb_sc_list;
if (name && name[0]) {
llvm::StringRef name_ref(name);
TargetSP target_sp(GetSP());
if (target_sp) {
ModuleFunctionSearchOptions function_options;
function_options.include_symbols = true;
function_options.include_inlines = true;
std::string regexstr;
switch (matchtype) {
case eMatchTypeRegex:
target_sp->GetImages().FindFunctions(RegularExpression(name_ref),
function_options, *sb_sc_list);
break;
case eMatchTypeStartsWith:
regexstr = llvm::Regex::escape(name) + ".*";
target_sp->GetImages().FindFunctions(RegularExpression(regexstr),
function_options, *sb_sc_list);
break;
default:
target_sp->GetImages().FindFunctions(ConstString(name),
eFunctionNameTypeAny,
function_options, *sb_sc_list);
break;
}
}
}
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return sb_sc_list;
}
lldb::SBType SBTarget::FindFirstType(const char *typename_cstr) {
LLDB_INSTRUMENT_VA(this, typename_cstr);
TargetSP target_sp(GetSP());
if (typename_cstr && typename_cstr[0] && target_sp) {
ConstString const_typename(typename_cstr);
SymbolContext sc;
const bool exact_match = false;
const ModuleList &module_list = target_sp->GetImages();
size_t count = module_list.GetSize();
for (size_t idx = 0; idx < count; idx++) {
ModuleSP module_sp(module_list.GetModuleAtIndex(idx));
if (module_sp) {
TypeSP type_sp(
module_sp->FindFirstType(sc, const_typename, exact_match));
if (type_sp)
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return SBType(type_sp);
}
}
// Didn't find the type in the symbols; Try the loaded language runtimes
if (auto process_sp = target_sp->GetProcessSP()) {
for (auto *runtime : process_sp->GetLanguageRuntimes()) {
if (auto vendor = runtime->GetDeclVendor()) {
auto types = vendor->FindTypes(const_typename, /*max_matches*/ 1);
if (!types.empty())
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return SBType(types.front());
}
}
}
// No matches, search for basic typename matches
for (auto *type_system : target_sp->GetScratchTypeSystems())
if (auto type = type_system->GetBuiltinTypeByName(const_typename))
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return SBType(type);
}
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return SBType();
}
SBType SBTarget::GetBasicType(lldb::BasicType type) {
LLDB_INSTRUMENT_VA(this, type);
TargetSP target_sp(GetSP());
if (target_sp) {
for (auto *type_system : target_sp->GetScratchTypeSystems())
if (auto compiler_type = type_system->GetBasicTypeFromAST(type))
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return SBType(compiler_type);
}
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return SBType();
}
lldb::SBTypeList SBTarget::FindTypes(const char *typename_cstr) {
LLDB_INSTRUMENT_VA(this, typename_cstr);
SBTypeList sb_type_list;
TargetSP target_sp(GetSP());
if (typename_cstr && typename_cstr[0] && target_sp) {
ModuleList &images = target_sp->GetImages();
ConstString const_typename(typename_cstr);
bool exact_match = false;
TypeList type_list;
llvm::DenseSet<SymbolFile *> searched_symbol_files;
images.FindTypes(nullptr, const_typename, exact_match, UINT32_MAX,
searched_symbol_files, type_list);
for (size_t idx = 0; idx < type_list.GetSize(); idx++) {
TypeSP type_sp(type_list.GetTypeAtIndex(idx));
if (type_sp)
sb_type_list.Append(SBType(type_sp));
}
// Try the loaded language runtimes
if (auto process_sp = target_sp->GetProcessSP()) {
for (auto *runtime : process_sp->GetLanguageRuntimes()) {
if (auto *vendor = runtime->GetDeclVendor()) {
auto types =
vendor->FindTypes(const_typename, /*max_matches*/ UINT32_MAX);
for (auto type : types)
sb_type_list.Append(SBType(type));
}
}
}
if (sb_type_list.GetSize() == 0) {
// No matches, search for basic typename matches
for (auto *type_system : target_sp->GetScratchTypeSystems())
if (auto compiler_type =
type_system->GetBuiltinTypeByName(const_typename))
sb_type_list.Append(SBType(compiler_type));
}
}
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return sb_type_list;
}
SBValueList SBTarget::FindGlobalVariables(const char *name,
uint32_t max_matches) {
LLDB_INSTRUMENT_VA(this, name, max_matches);
SBValueList sb_value_list;
TargetSP target_sp(GetSP());
if (name && target_sp) {
VariableList variable_list;
target_sp->GetImages().FindGlobalVariables(ConstString(name), max_matches,
variable_list);
if (!variable_list.Empty()) {
ExecutionContextScope *exe_scope = target_sp->GetProcessSP().get();
if (exe_scope == nullptr)
exe_scope = target_sp.get();
for (const VariableSP &var_sp : variable_list) {
lldb::ValueObjectSP valobj_sp(
ValueObjectVariable::Create(exe_scope, var_sp));
if (valobj_sp)
sb_value_list.Append(SBValue(valobj_sp));
}
}
}
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return sb_value_list;
}
SBValueList SBTarget::FindGlobalVariables(const char *name,
uint32_t max_matches,
MatchType matchtype) {
LLDB_INSTRUMENT_VA(this, name, max_matches, matchtype);
SBValueList sb_value_list;
TargetSP target_sp(GetSP());
if (name && target_sp) {
llvm::StringRef name_ref(name);
VariableList variable_list;
std::string regexstr;
switch (matchtype) {
case eMatchTypeNormal:
target_sp->GetImages().FindGlobalVariables(ConstString(name), max_matches,
variable_list);
break;
case eMatchTypeRegex:
target_sp->GetImages().FindGlobalVariables(RegularExpression(name_ref),
max_matches, variable_list);
break;
case eMatchTypeStartsWith:
regexstr = llvm::Regex::escape(name) + ".*";
target_sp->GetImages().FindGlobalVariables(RegularExpression(regexstr),
max_matches, variable_list);
break;
}
if (!variable_list.Empty()) {
ExecutionContextScope *exe_scope = target_sp->GetProcessSP().get();
if (exe_scope == nullptr)
exe_scope = target_sp.get();
for (const VariableSP &var_sp : variable_list) {
lldb::ValueObjectSP valobj_sp(
ValueObjectVariable::Create(exe_scope, var_sp));
if (valobj_sp)
sb_value_list.Append(SBValue(valobj_sp));
}
}
}
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return sb_value_list;
}
lldb::SBValue SBTarget::FindFirstGlobalVariable(const char *name) {
LLDB_INSTRUMENT_VA(this, name);
SBValueList sb_value_list(FindGlobalVariables(name, 1));
if (sb_value_list.IsValid() && sb_value_list.GetSize() > 0)
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return sb_value_list.GetValueAtIndex(0);
return SBValue();
}
SBSourceManager SBTarget::GetSourceManager() {
LLDB_INSTRUMENT_VA(this);
SBSourceManager source_manager(*this);
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return source_manager;
}
lldb::SBInstructionList SBTarget::ReadInstructions(lldb::SBAddress base_addr,
uint32_t count) {
LLDB_INSTRUMENT_VA(this, base_addr, count);
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return ReadInstructions(base_addr, count, nullptr);
}
lldb::SBInstructionList SBTarget::ReadInstructions(lldb::SBAddress base_addr,
uint32_t count,
const char *flavor_string) {
LLDB_INSTRUMENT_VA(this, base_addr, count, flavor_string);
SBInstructionList sb_instructions;
TargetSP target_sp(GetSP());
if (target_sp) {
Address *addr_ptr = base_addr.get();
if (addr_ptr) {
DataBufferHeap data(
target_sp->GetArchitecture().GetMaximumOpcodeByteSize() * count, 0);
bool force_live_memory = true;
lldb_private::Status error;
lldb::addr_t load_addr = LLDB_INVALID_ADDRESS;
const size_t bytes_read =
target_sp->ReadMemory(*addr_ptr, data.GetBytes(), data.GetByteSize(),
error, force_live_memory, &load_addr);
const bool data_from_file = load_addr == LLDB_INVALID_ADDRESS;
sb_instructions.SetDisassembler(Disassembler::DisassembleBytes(
target_sp->GetArchitecture(), nullptr, flavor_string, *addr_ptr,
data.GetBytes(), bytes_read, count, data_from_file));
}
}
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return sb_instructions;
}
lldb::SBInstructionList SBTarget::GetInstructions(lldb::SBAddress base_addr,
const void *buf,
size_t size) {
LLDB_INSTRUMENT_VA(this, base_addr, buf, size);
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return GetInstructionsWithFlavor(base_addr, nullptr, buf, size);
}
lldb::SBInstructionList
SBTarget::GetInstructionsWithFlavor(lldb::SBAddress base_addr,
const char *flavor_string, const void *buf,
size_t size) {
LLDB_INSTRUMENT_VA(this, base_addr, flavor_string, buf, size);
SBInstructionList sb_instructions;
TargetSP target_sp(GetSP());
if (target_sp) {
Address addr;
if (base_addr.get())
addr = *base_addr.get();
const bool data_from_file = true;
sb_instructions.SetDisassembler(Disassembler::DisassembleBytes(
target_sp->GetArchitecture(), nullptr, flavor_string, addr, buf, size,
UINT32_MAX, data_from_file));
}
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return sb_instructions;
}
lldb::SBInstructionList SBTarget::GetInstructions(lldb::addr_t base_addr,
const void *buf,
size_t size) {
LLDB_INSTRUMENT_VA(this, base_addr, buf, size);
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return GetInstructionsWithFlavor(ResolveLoadAddress(base_addr), nullptr, buf,
size);
}
lldb::SBInstructionList
SBTarget::GetInstructionsWithFlavor(lldb::addr_t base_addr,
const char *flavor_string, const void *buf,
size_t size) {
LLDB_INSTRUMENT_VA(this, base_addr, flavor_string, buf, size);
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return GetInstructionsWithFlavor(ResolveLoadAddress(base_addr), flavor_string,
buf, size);
}
SBError SBTarget::SetSectionLoadAddress(lldb::SBSection section,
lldb::addr_t section_base_addr) {
LLDB_INSTRUMENT_VA(this, section, section_base_addr);
SBError sb_error;
TargetSP target_sp(GetSP());
if (target_sp) {
if (!section.IsValid()) {
sb_error.SetErrorStringWithFormat("invalid section");
} else {
SectionSP section_sp(section.GetSP());
if (section_sp) {
if (section_sp->IsThreadSpecific()) {
sb_error.SetErrorString(
"thread specific sections are not yet supported");
} else {
ProcessSP process_sp(target_sp->GetProcessSP());
if (target_sp->SetSectionLoadAddress(section_sp, section_base_addr)) {
ModuleSP module_sp(section_sp->GetModule());
if (module_sp) {
ModuleList module_list;
module_list.Append(module_sp);
target_sp->ModulesDidLoad(module_list);
}
// Flush info in the process (stack frames, etc)
if (process_sp)
process_sp->Flush();
}
}
}
}
} else {
sb_error.SetErrorString("invalid target");
}
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return sb_error;
}
SBError SBTarget::ClearSectionLoadAddress(lldb::SBSection section) {
LLDB_INSTRUMENT_VA(this, section);
SBError sb_error;
TargetSP target_sp(GetSP());
if (target_sp) {
if (!section.IsValid()) {
sb_error.SetErrorStringWithFormat("invalid section");
} else {
SectionSP section_sp(section.GetSP());
if (section_sp) {
ProcessSP process_sp(target_sp->GetProcessSP());
if (target_sp->SetSectionUnloaded(section_sp)) {
ModuleSP module_sp(section_sp->GetModule());
if (module_sp) {
ModuleList module_list;
module_list.Append(module_sp);
target_sp->ModulesDidUnload(module_list, false);
}
// Flush info in the process (stack frames, etc)
if (process_sp)
process_sp->Flush();
}
} else {
sb_error.SetErrorStringWithFormat("invalid section");
}
}
} else {
sb_error.SetErrorStringWithFormat("invalid target");
}
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return sb_error;
}
SBError SBTarget::SetModuleLoadAddress(lldb::SBModule module,
int64_t slide_offset) {
LLDB_INSTRUMENT_VA(this, module, slide_offset);
SBError sb_error;
TargetSP target_sp(GetSP());
if (target_sp) {
ModuleSP module_sp(module.GetSP());
if (module_sp) {
bool changed = false;
if (module_sp->SetLoadAddress(*target_sp, slide_offset, true, changed)) {
// The load was successful, make sure that at least some sections
// changed before we notify that our module was loaded.
if (changed) {
ModuleList module_list;
module_list.Append(module_sp);
target_sp->ModulesDidLoad(module_list);
// Flush info in the process (stack frames, etc)
ProcessSP process_sp(target_sp->GetProcessSP());
if (process_sp)
process_sp->Flush();
}
}
} else {
sb_error.SetErrorStringWithFormat("invalid module");
}
} else {
sb_error.SetErrorStringWithFormat("invalid target");
}
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return sb_error;
}
SBError SBTarget::ClearModuleLoadAddress(lldb::SBModule module) {
LLDB_INSTRUMENT_VA(this, module);
SBError sb_error;
char path[PATH_MAX];
TargetSP target_sp(GetSP());
if (target_sp) {
ModuleSP module_sp(module.GetSP());
if (module_sp) {
ObjectFile *objfile = module_sp->GetObjectFile();
if (objfile) {
SectionList *section_list = objfile->GetSectionList();
if (section_list) {
ProcessSP process_sp(target_sp->GetProcessSP());
bool changed = false;
const size_t num_sections = section_list->GetSize();
for (size_t sect_idx = 0; sect_idx < num_sections; ++sect_idx) {
SectionSP section_sp(section_list->GetSectionAtIndex(sect_idx));
if (section_sp)
changed |= target_sp->SetSectionUnloaded(section_sp);
}
if (changed) {
ModuleList module_list;
module_list.Append(module_sp);
target_sp->ModulesDidUnload(module_list, false);
// Flush info in the process (stack frames, etc)
ProcessSP process_sp(target_sp->GetProcessSP());
if (process_sp)
process_sp->Flush();
}
} else {
module_sp->GetFileSpec().GetPath(path, sizeof(path));
sb_error.SetErrorStringWithFormat("no sections in object file '%s'",
path);
}
} else {
module_sp->GetFileSpec().GetPath(path, sizeof(path));
sb_error.SetErrorStringWithFormat("no object file for module '%s'",
path);
}
} else {
sb_error.SetErrorStringWithFormat("invalid module");
}
} else {
sb_error.SetErrorStringWithFormat("invalid target");
}
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return sb_error;
}
lldb::SBSymbolContextList SBTarget::FindSymbols(const char *name,
lldb::SymbolType symbol_type) {
LLDB_INSTRUMENT_VA(this, name, symbol_type);
SBSymbolContextList sb_sc_list;
if (name && name[0]) {
TargetSP target_sp(GetSP());
if (target_sp)
target_sp->GetImages().FindSymbolsWithNameAndType(
ConstString(name), symbol_type, *sb_sc_list);
}
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return sb_sc_list;
}
lldb::SBValue SBTarget::EvaluateExpression(const char *expr) {
LLDB_INSTRUMENT_VA(this, expr);
TargetSP target_sp(GetSP());
if (!target_sp)
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return SBValue();
SBExpressionOptions options;
lldb::DynamicValueType fetch_dynamic_value =
target_sp->GetPreferDynamicValue();
options.SetFetchDynamicValue(fetch_dynamic_value);
options.SetUnwindOnError(true);
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return EvaluateExpression(expr, options);
}
lldb::SBValue SBTarget::EvaluateExpression(const char *expr,
const SBExpressionOptions &options) {
LLDB_INSTRUMENT_VA(this, expr, options);
Log *expr_log = GetLog(LLDBLog::Expressions);
SBValue expr_result;
ValueObjectSP expr_value_sp;
TargetSP target_sp(GetSP());
StackFrame *frame = nullptr;
if (target_sp) {
if (expr == nullptr || expr[0] == '\0') {
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return expr_result;
}
std::lock_guard<std::recursive_mutex> guard(target_sp->GetAPIMutex());
ExecutionContext exe_ctx(m_opaque_sp.get());
frame = exe_ctx.GetFramePtr();
Target *target = exe_ctx.GetTargetPtr();
if (target) {
target->EvaluateExpression(expr, frame, expr_value_sp, options.ref());
expr_result.SetSP(expr_value_sp, options.GetFetchDynamicValue());
}
}
LLDB_LOGF(expr_log,
"** [SBTarget::EvaluateExpression] Expression result is "
"%s, summary %s **",
expr_result.GetValue(), expr_result.GetSummary());
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return expr_result;
}
lldb::addr_t SBTarget::GetStackRedZoneSize() {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if (target_sp) {
ABISP abi_sp;
ProcessSP process_sp(target_sp->GetProcessSP());
if (process_sp)
abi_sp = process_sp->GetABI();
else
abi_sp = ABI::FindPlugin(ProcessSP(), target_sp->GetArchitecture());
if (abi_sp)
return abi_sp->GetRedZoneSize();
}
return 0;
}
bool SBTarget::IsLoaded(const SBModule &module) const {
LLDB_INSTRUMENT_VA(this, module);
TargetSP target_sp(GetSP());
if (!target_sp)
return false;
ModuleSP module_sp(module.GetSP());
if (!module_sp)
return false;
return module_sp->IsLoadedInTarget(target_sp.get());
}
lldb::SBLaunchInfo SBTarget::GetLaunchInfo() const {
LLDB_INSTRUMENT_VA(this);
lldb::SBLaunchInfo launch_info(nullptr);
TargetSP target_sp(GetSP());
if (target_sp)
Add Utility/Environment class for handling... environments Summary: There was some confusion in the code about how to represent process environment. Most of the code (ab)used the Args class for this purpose, but some of it used a more basic StringList class instead. In either case, the fact that the underlying abstraction did not provide primitive operations for the typical environment operations meant that even a simple operation like checking for an environment variable value was several lines of code. This patch adds a separate Environment class, which is essentialy a llvm::StringMap<std::string> in disguise. To standard StringMap functionality, it adds a couple of new functions, which are specific to the environment use case: - (most important) envp conversion for passing into execve() and likes. Instead of trying to maintain a constantly up-to-date envp view, it provides a function which creates a envp view on demand, with the expectation that this will be called as the very last thing before handing the value to the system function. - insert(StringRef KeyEqValue) - splits KeyEqValue into (key, value) pair and inserts it into the environment map. - compose(value_type KeyValue) - takes a map entry and converts in back into "KEY=VALUE" representation. With this interface most of the environment-manipulating code becomes one-liners. The only tricky part was maintaining compatibility in SBLaunchInfo, which expects that the environment entries are accessible by index and that the returned const char* is backed by the launch info object (random access into maps is hard and the map stores the entry in a deconstructed form, so we cannot just return a .c_str() value). To solve this, I have the SBLaunchInfo convert the environment into the "envp" form, and use it to answer the environment queries. Extra code is added to make sure the envp version is always in sync. (This also improves the layering situation as Args was in the Interpreter module whereas Environment is in Utility.) Reviewers: zturner, davide, jingham, clayborg Subscribers: emaste, lldb-commits, mgorny Differential Revision: https://reviews.llvm.org/D41359 llvm-svn: 322174
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launch_info.set_ref(m_opaque_sp->GetProcessLaunchInfo());
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return launch_info;
}
void SBTarget::SetLaunchInfo(const lldb::SBLaunchInfo &launch_info) {
LLDB_INSTRUMENT_VA(this, launch_info);
TargetSP target_sp(GetSP());
if (target_sp)
m_opaque_sp->SetProcessLaunchInfo(launch_info.ref());
}
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SBEnvironment SBTarget::GetEnvironment() {
LLDB_INSTRUMENT_VA(this);
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TargetSP target_sp(GetSP());
if (target_sp) {
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return SBEnvironment(target_sp->GetEnvironment());
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}
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return SBEnvironment();
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}
lldb::SBTrace SBTarget::GetTrace() {
LLDB_INSTRUMENT_VA(this);
TargetSP target_sp(GetSP());
if (target_sp)
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return SBTrace(target_sp->GetTrace());
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return SBTrace();
}
lldb::SBTrace SBTarget::CreateTrace(lldb::SBError &error) {
LLDB_INSTRUMENT_VA(this, error);
TargetSP target_sp(GetSP());
error.Clear();
if (target_sp) {
if (llvm::Expected<lldb::TraceSP> trace_sp = target_sp->CreateTrace()) {
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return SBTrace(*trace_sp);
} else {
error.SetErrorString(llvm::toString(trace_sp.takeError()).c_str());
}
} else {
error.SetErrorString("missing target");
}
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return SBTrace();
}