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| //===-- PlatformAppleSimulator.cpp ------------------------------*- C++ -*-===//
//
// 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 "PlatformAppleSimulator.h"
#if defined(__APPLE__)
#include <dlfcn.h>
#endif
#include <mutex>
#include <thread>
#include "lldb/Host/PseudoTerminal.h"
#include "lldb/Target/Process.h"
#include "lldb/Utility/LLDBAssert.h"
#include "lldb/Utility/Status.h"
#include "lldb/Utility/StreamString.h"
#include "llvm/Support/Threading.h"
using namespace lldb;
using namespace lldb_private;
#if !defined(__APPLE__)
#define UNSUPPORTED_ERROR ("Apple simulators aren't supported on this platform")
#endif
// Static Functions
void PlatformAppleSimulator::Initialize() { PlatformDarwin::Initialize(); }
void PlatformAppleSimulator::Terminate() { PlatformDarwin::Terminate(); }
/// Default Constructor
PlatformAppleSimulator::PlatformAppleSimulator()
: PlatformDarwin(true), m_core_sim_path_mutex(),
m_core_simulator_framework_path(), m_device() {}
/// Destructor.
///
/// The destructor is virtual since this class is designed to be
/// inherited from by the plug-in instance.
PlatformAppleSimulator::~PlatformAppleSimulator() {}
lldb_private::Status PlatformAppleSimulator::LaunchProcess(
lldb_private::ProcessLaunchInfo &launch_info) {
#if defined(__APPLE__)
LoadCoreSimulator();
CoreSimulatorSupport::Device device(GetSimulatorDevice());
if (device.GetState() != CoreSimulatorSupport::Device::State::Booted) {
Status boot_err;
device.Boot(boot_err);
if (boot_err.Fail())
return boot_err;
}
auto spawned = device.Spawn(launch_info);
if (spawned) {
launch_info.SetProcessID(spawned.GetPID());
return Status();
} else
return spawned.GetError();
#else
Status err;
err.SetErrorString(UNSUPPORTED_ERROR);
return err;
#endif
}
void PlatformAppleSimulator::GetStatus(Stream &strm) {
#if defined(__APPLE__)
// This will get called by subclasses, so just output status on the current
// simulator
PlatformAppleSimulator::LoadCoreSimulator();
CoreSimulatorSupport::DeviceSet devices =
CoreSimulatorSupport::DeviceSet::GetAvailableDevices(
GetDeveloperDirectory());
const size_t num_devices = devices.GetNumDevices();
if (num_devices) {
strm.Printf("Available devices:\n");
for (size_t i = 0; i < num_devices; ++i) {
CoreSimulatorSupport::Device device = devices.GetDeviceAtIndex(i);
strm.Printf(" %s: %s\n", device.GetUDID().c_str(),
device.GetName().c_str());
}
if (m_device.hasValue() && m_device->operator bool()) {
strm.Printf("Current device: %s: %s", m_device->GetUDID().c_str(),
m_device->GetName().c_str());
if (m_device->GetState() == CoreSimulatorSupport::Device::State::Booted) {
strm.Printf(" state = booted");
}
strm.Printf("\nType \"platform connect <ARG>\" where <ARG> is a device "
"UDID or a device name to disconnect and connect to a "
"different device.\n");
} else {
strm.Printf("No current device is selected, \"platform connect <ARG>\" "
"where <ARG> is a device UDID or a device name to connect to "
"a specific device.\n");
}
} else {
strm.Printf("No devices are available.\n");
}
#else
strm.Printf(UNSUPPORTED_ERROR);
#endif
}
Status PlatformAppleSimulator::ConnectRemote(Args &args) {
#if defined(__APPLE__)
Status error;
if (args.GetArgumentCount() == 1) {
if (m_device)
DisconnectRemote();
PlatformAppleSimulator::LoadCoreSimulator();
const char *arg_cstr = args.GetArgumentAtIndex(0);
if (arg_cstr) {
std::string arg_str(arg_cstr);
CoreSimulatorSupport::DeviceSet devices =
CoreSimulatorSupport::DeviceSet::GetAvailableDevices(
GetDeveloperDirectory());
devices.ForEach(
[this, &arg_str](const CoreSimulatorSupport::Device &device) -> bool {
if (arg_str == device.GetUDID() || arg_str == device.GetName()) {
m_device = device;
return false; // Stop iterating
} else {
return true; // Keep iterating
}
});
if (!m_device)
error.SetErrorStringWithFormat(
"no device with UDID or name '%s' was found", arg_cstr);
}
} else {
error.SetErrorString("this command take a single UDID argument of the "
"device you want to connect to.");
}
return error;
#else
Status err;
err.SetErrorString(UNSUPPORTED_ERROR);
return err;
#endif
}
Status PlatformAppleSimulator::DisconnectRemote() {
#if defined(__APPLE__)
m_device.reset();
return Status();
#else
Status err;
err.SetErrorString(UNSUPPORTED_ERROR);
return err;
#endif
}
lldb::ProcessSP PlatformAppleSimulator::DebugProcess(
ProcessLaunchInfo &launch_info, Debugger &debugger,
Target *target, // Can be NULL, if NULL create a new target, else use
// existing one
Status &error) {
#if defined(__APPLE__)
ProcessSP process_sp;
// Make sure we stop at the entry point
launch_info.GetFlags().Set(eLaunchFlagDebug);
// We always launch the process we are going to debug in a separate process
// group, since then we can handle ^C interrupts ourselves w/o having to
// worry about the target getting them as well.
launch_info.SetLaunchInSeparateProcessGroup(true);
error = LaunchProcess(launch_info);
if (error.Success()) {
if (launch_info.GetProcessID() != LLDB_INVALID_PROCESS_ID) {
ProcessAttachInfo attach_info(launch_info);
process_sp = Attach(attach_info, debugger, target, error);
if (process_sp) {
launch_info.SetHijackListener(attach_info.GetHijackListener());
// Since we attached to the process, it will think it needs to detach
// if the process object just goes away without an explicit call to
// Process::Kill() or Process::Detach(), so let it know to kill the
// process if this happens.
process_sp->SetShouldDetach(false);
// If we didn't have any file actions, the pseudo terminal might have
// been used where the slave side was given as the file to open for
// stdin/out/err after we have already opened the master so we can
// read/write stdin/out/err.
int pty_fd = launch_info.GetPTY().ReleaseMasterFileDescriptor();
if (pty_fd != PseudoTerminal::invalid_fd) {
process_sp->SetSTDIOFileDescriptor(pty_fd);
}
}
}
}
return process_sp;
#else
return ProcessSP();
#endif
}
FileSpec PlatformAppleSimulator::GetCoreSimulatorPath() {
#if defined(__APPLE__)
std::lock_guard<std::mutex> guard(m_core_sim_path_mutex);
if (!m_core_simulator_framework_path.hasValue()) {
const char *developer_dir = GetDeveloperDirectory();
if (developer_dir) {
StreamString cs_path;
cs_path.Printf(
"%s/Library/PrivateFrameworks/CoreSimulator.framework/CoreSimulator",
developer_dir);
m_core_simulator_framework_path = FileSpec(cs_path.GetData());
FileSystem::Instance().Resolve(*m_core_simulator_framework_path);
}
}
return m_core_simulator_framework_path.getValue();
#else
return FileSpec();
#endif
}
void PlatformAppleSimulator::LoadCoreSimulator() {
#if defined(__APPLE__)
static llvm::once_flag g_load_core_sim_flag;
llvm::call_once(g_load_core_sim_flag, [this] {
const std::string core_sim_path(GetCoreSimulatorPath().GetPath());
if (core_sim_path.size())
dlopen(core_sim_path.c_str(), RTLD_LAZY);
});
#endif
}
#if defined(__APPLE__)
CoreSimulatorSupport::Device PlatformAppleSimulator::GetSimulatorDevice() {
if (!m_device.hasValue()) {
const CoreSimulatorSupport::DeviceType::ProductFamilyID dev_id =
CoreSimulatorSupport::DeviceType::ProductFamilyID::iPhone;
m_device = CoreSimulatorSupport::DeviceSet::GetAvailableDevices(
GetDeveloperDirectory())
.GetFanciest(dev_id);
}
if (m_device.hasValue())
return m_device.getValue();
else
return CoreSimulatorSupport::Device();
}
#endif
|