Remove POSIX thread/process abstraction
As of r240543 ProcessPOSIX and POSIXThread are used only on FreeBSD, so
just roll them into ProcessFreeBSD and FreeBSDThread.
Differential Revision: http://reviews.llvm.org/D10698
llvm-svn: 243427
diff --git a/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp b/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp
index a0458f1..83b869a 100644
--- a/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp
+++ b/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp
@@ -28,6 +28,23 @@
#include "ProcessMonitor.h"
#include "FreeBSDThread.h"
+// Other libraries and framework includes
+#include "lldb/Breakpoint/BreakpointLocation.h"
+#include "lldb/Breakpoint/Watchpoint.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/ModuleSpec.h"
+#include "lldb/Core/PluginManager.h"
+#include "lldb/Core/State.h"
+#include "lldb/Host/FileSpec.h"
+#include "lldb/Host/Host.h"
+#include "lldb/Symbol/ObjectFile.h"
+#include "lldb/Target/DynamicLoader.h"
+#include "lldb/Target/Platform.h"
+#include "lldb/Target/Target.h"
+
+#include "lldb/Host/posix/Fcntl.h"
+
+
using namespace lldb;
using namespace lldb_private;
@@ -51,7 +68,7 @@
{
lldb::ProcessSP process_sp;
if (crash_file_path == NULL)
- process_sp.reset(new ProcessFreeBSD (target, listener));
+ process_sp.reset(new ProcessFreeBSD (target, listener, GetFreeBSDSignals()));
return process_sp;
}
@@ -113,15 +130,6 @@
return NULL;
}
-//------------------------------------------------------------------------------
-// Constructors and destructors.
-
-ProcessFreeBSD::ProcessFreeBSD(Target& target, Listener &listener)
- : ProcessPOSIX(target, listener, GetFreeBSDSignals ()),
- m_resume_signo(0)
-{
-}
-
void
ProcessFreeBSD::Terminate()
{
@@ -232,7 +240,7 @@
m_suspend_tids.clear();
m_run_tids.clear();
m_step_tids.clear();
- return ProcessPOSIX::WillResume();
+ return Process::WillResume();
}
void
@@ -274,3 +282,780 @@
m_message_queue.push(message);
}
+
+//------------------------------------------------------------------------------
+// Constructors and destructors.
+
+ProcessFreeBSD::ProcessFreeBSD(Target& target, Listener &listener, UnixSignalsSP &unix_signals_sp)
+ : Process(target, listener, unix_signals_sp),
+ m_byte_order(lldb::endian::InlHostByteOrder()),
+ m_monitor(NULL),
+ m_module(NULL),
+ m_message_mutex (Mutex::eMutexTypeRecursive),
+ m_exit_now(false),
+ m_seen_initial_stop(),
+ m_resume_signo(0)
+{
+ // FIXME: Putting this code in the ctor and saving the byte order in a
+ // member variable is a hack to avoid const qual issues in GetByteOrder.
+ lldb::ModuleSP module = GetTarget().GetExecutableModule();
+ if (module && module->GetObjectFile())
+ m_byte_order = module->GetObjectFile()->GetByteOrder();
+}
+
+ProcessFreeBSD::~ProcessFreeBSD()
+{
+ delete m_monitor;
+}
+
+//------------------------------------------------------------------------------
+// Process protocol.
+void
+ProcessFreeBSD::Finalize()
+{
+ Process::Finalize();
+
+ if (m_monitor)
+ m_monitor->StopMonitor();
+}
+
+bool
+ProcessFreeBSD::CanDebug(Target &target, bool plugin_specified_by_name)
+{
+ // For now we are just making sure the file exists for a given module
+ ModuleSP exe_module_sp(target.GetExecutableModule());
+ if (exe_module_sp.get())
+ return exe_module_sp->GetFileSpec().Exists();
+ // If there is no executable module, we return true since we might be preparing to attach.
+ return true;
+}
+
+Error
+ProcessFreeBSD::DoAttachToProcessWithID (lldb::pid_t pid, const ProcessAttachInfo &attach_info)
+{
+ Error error;
+ assert(m_monitor == NULL);
+
+ Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_PROCESS));
+ if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
+ log->Printf ("ProcessFreeBSD::%s(pid = %" PRIi64 ")", __FUNCTION__, GetID());
+
+ m_monitor = new ProcessMonitor(this, pid, error);
+
+ if (!error.Success())
+ return error;
+
+ PlatformSP platform_sp (m_target.GetPlatform ());
+ assert (platform_sp.get());
+ if (!platform_sp)
+ return error; // FIXME: Detatch?
+
+ // Find out what we can about this process
+ ProcessInstanceInfo process_info;
+ platform_sp->GetProcessInfo (pid, process_info);
+
+ // Resolve the executable module
+ ModuleSP exe_module_sp;
+ FileSpecList executable_search_paths (Target::GetDefaultExecutableSearchPaths());
+ ModuleSpec exe_module_spec(process_info.GetExecutableFile(), m_target.GetArchitecture());
+ error = platform_sp->ResolveExecutable(exe_module_spec,
+ exe_module_sp,
+ executable_search_paths.GetSize() ? &executable_search_paths : NULL);
+ if (!error.Success())
+ return error;
+
+ // Fix the target architecture if necessary
+ const ArchSpec &module_arch = exe_module_sp->GetArchitecture();
+ if (module_arch.IsValid() && !m_target.GetArchitecture().IsExactMatch(module_arch))
+ m_target.SetArchitecture(module_arch);
+
+ // Initialize the target module list
+ m_target.SetExecutableModule (exe_module_sp, true);
+
+ SetSTDIOFileDescriptor(m_monitor->GetTerminalFD());
+
+ SetID(pid);
+
+ return error;
+}
+
+Error
+ProcessFreeBSD::WillLaunch(Module* module)
+{
+ Error error;
+ return error;
+}
+
+FileSpec
+ProcessFreeBSD::GetFileSpec(const lldb_private::FileAction *file_action,
+ const FileSpec &default_file_spec,
+ const FileSpec &dbg_pts_file_spec)
+{
+ FileSpec file_spec{};
+
+ if (file_action && file_action->GetAction() == FileAction::eFileActionOpen)
+ {
+ file_spec = file_action->GetFileSpec();
+ // By default the stdio paths passed in will be pseudo-terminal
+ // (/dev/pts). If so, convert to using a different default path
+ // instead to redirect I/O to the debugger console. This should
+ // also handle user overrides to /dev/null or a different file.
+ if (!file_spec || file_spec == dbg_pts_file_spec)
+ file_spec = default_file_spec;
+ }
+ return file_spec;
+}
+
+Error
+ProcessFreeBSD::DoLaunch (Module *module,
+ ProcessLaunchInfo &launch_info)
+{
+ Error error;
+ assert(m_monitor == NULL);
+
+ FileSpec working_dir = launch_info.GetWorkingDirectory();
+ if (working_dir &&
+ (!working_dir.ResolvePath() ||
+ working_dir.GetFileType() != FileSpec::eFileTypeDirectory))
+ {
+ error.SetErrorStringWithFormat("No such file or directory: %s",
+ working_dir.GetCString());
+ return error;
+ }
+
+ SetPrivateState(eStateLaunching);
+
+ const lldb_private::FileAction *file_action;
+
+ // Default of empty will mean to use existing open file descriptors
+ FileSpec stdin_file_spec{};
+ FileSpec stdout_file_spec{};
+ FileSpec stderr_file_spec{};
+
+ const FileSpec dbg_pts_file_spec{launch_info.GetPTY().GetSlaveName(NULL,0), false};
+
+ file_action = launch_info.GetFileActionForFD (STDIN_FILENO);
+ stdin_file_spec = GetFileSpec(file_action, stdin_file_spec, dbg_pts_file_spec);
+
+ file_action = launch_info.GetFileActionForFD (STDOUT_FILENO);
+ stdout_file_spec = GetFileSpec(file_action, stdout_file_spec, dbg_pts_file_spec);
+
+ file_action = launch_info.GetFileActionForFD (STDERR_FILENO);
+ stderr_file_spec = GetFileSpec(file_action, stderr_file_spec, dbg_pts_file_spec);
+
+ m_monitor = new ProcessMonitor(this,
+ module,
+ launch_info.GetArguments().GetConstArgumentVector(),
+ launch_info.GetEnvironmentEntries().GetConstArgumentVector(),
+ stdin_file_spec,
+ stdout_file_spec,
+ stderr_file_spec,
+ working_dir,
+ launch_info,
+ error);
+
+ m_module = module;
+
+ if (!error.Success())
+ return error;
+
+ int terminal = m_monitor->GetTerminalFD();
+ if (terminal >= 0) {
+ // The reader thread will close the file descriptor when done, so we pass it a copy.
+ int stdio = fcntl(terminal, F_DUPFD_CLOEXEC, 0);
+ if (stdio == -1) {
+ error.SetErrorToErrno();
+ return error;
+ }
+ SetSTDIOFileDescriptor(stdio);
+ }
+
+ SetID(m_monitor->GetPID());
+ return error;
+}
+
+void
+ProcessFreeBSD::DidLaunch()
+{
+}
+
+addr_t
+ProcessFreeBSD::GetImageInfoAddress()
+{
+ Target *target = &GetTarget();
+ ObjectFile *obj_file = target->GetExecutableModule()->GetObjectFile();
+ Address addr = obj_file->GetImageInfoAddress(target);
+
+ if (addr.IsValid())
+ return addr.GetLoadAddress(target);
+ return LLDB_INVALID_ADDRESS;
+}
+
+Error
+ProcessFreeBSD::DoHalt(bool &caused_stop)
+{
+ Error error;
+
+ if (IsStopped())
+ {
+ caused_stop = false;
+ }
+ else if (kill(GetID(), SIGSTOP))
+ {
+ caused_stop = false;
+ error.SetErrorToErrno();
+ }
+ else
+ {
+ caused_stop = true;
+ }
+ return error;
+}
+
+Error
+ProcessFreeBSD::DoSignal(int signal)
+{
+ Error error;
+
+ if (kill(GetID(), signal))
+ error.SetErrorToErrno();
+
+ return error;
+}
+
+Error
+ProcessFreeBSD::DoDestroy()
+{
+ Error error;
+
+ if (!HasExited())
+ {
+ assert(m_monitor);
+ m_exit_now = true;
+ if (GetID() == LLDB_INVALID_PROCESS_ID)
+ {
+ error.SetErrorString("invalid process id");
+ return error;
+ }
+ if (!m_monitor->Kill())
+ {
+ error.SetErrorToErrno();
+ return error;
+ }
+
+ SetPrivateState(eStateExited);
+ }
+
+ return error;
+}
+
+void
+ProcessFreeBSD::DoDidExec()
+{
+ Target *target = &GetTarget();
+ if (target)
+ {
+ PlatformSP platform_sp (target->GetPlatform());
+ assert (platform_sp.get());
+ if (platform_sp)
+ {
+ ProcessInstanceInfo process_info;
+ platform_sp->GetProcessInfo(GetID(), process_info);
+ ModuleSP exe_module_sp;
+ ModuleSpec exe_module_spec(process_info.GetExecutableFile(), target->GetArchitecture());
+ FileSpecList executable_search_paths (Target::GetDefaultExecutableSearchPaths());
+ Error error = platform_sp->ResolveExecutable(exe_module_spec,
+ exe_module_sp,
+ executable_search_paths.GetSize() ? &executable_search_paths : NULL);
+ if (!error.Success())
+ return;
+ target->SetExecutableModule(exe_module_sp, true);
+ }
+ }
+}
+
+bool
+ProcessFreeBSD::AddThreadForInitialStopIfNeeded(lldb::tid_t stop_tid)
+{
+ bool added_to_set = false;
+ ThreadStopSet::iterator it = m_seen_initial_stop.find(stop_tid);
+ if (it == m_seen_initial_stop.end())
+ {
+ m_seen_initial_stop.insert(stop_tid);
+ added_to_set = true;
+ }
+ return added_to_set;
+}
+
+bool
+ProcessFreeBSD::WaitingForInitialStop(lldb::tid_t stop_tid)
+{
+ return (m_seen_initial_stop.find(stop_tid) == m_seen_initial_stop.end());
+}
+
+FreeBSDThread *
+ProcessFreeBSD::CreateNewFreeBSDThread(lldb_private::Process &process, lldb::tid_t tid)
+{
+ return new FreeBSDThread(process, tid);
+}
+
+void
+ProcessFreeBSD::RefreshStateAfterStop()
+{
+ Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_PROCESS));
+ if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
+ log->Printf ("ProcessFreeBSD::%s(), message_queue size = %d", __FUNCTION__, (int)m_message_queue.size());
+
+ Mutex::Locker lock(m_message_mutex);
+
+ // This method used to only handle one message. Changing it to loop allows
+ // it to handle the case where we hit a breakpoint while handling a different
+ // breakpoint.
+ while (!m_message_queue.empty())
+ {
+ ProcessMessage &message = m_message_queue.front();
+
+ // Resolve the thread this message corresponds to and pass it along.
+ lldb::tid_t tid = message.GetTID();
+ if (log)
+ log->Printf ("ProcessFreeBSD::%s(), message_queue size = %d, pid = %" PRIi64, __FUNCTION__, (int)m_message_queue.size(), tid);
+
+ if (message.GetKind() == ProcessMessage::eNewThreadMessage)
+ {
+ if (log)
+ log->Printf ("ProcessFreeBSD::%s() adding thread, tid = %" PRIi64, __FUNCTION__, message.GetChildTID());
+ lldb::tid_t child_tid = message.GetChildTID();
+ ThreadSP thread_sp;
+ thread_sp.reset(CreateNewFreeBSDThread(*this, child_tid));
+
+ Mutex::Locker lock(m_thread_list.GetMutex());
+
+ m_thread_list.AddThread(thread_sp);
+ }
+
+ m_thread_list.RefreshStateAfterStop();
+
+ FreeBSDThread *thread = static_cast<FreeBSDThread*>(
+ GetThreadList().FindThreadByID(tid, false).get());
+ if (thread)
+ thread->Notify(message);
+
+ if (message.GetKind() == ProcessMessage::eExitMessage)
+ {
+ // FIXME: We should tell the user about this, but the limbo message is probably better for that.
+ if (log)
+ log->Printf ("ProcessFreeBSD::%s() removing thread, tid = %" PRIi64, __FUNCTION__, tid);
+
+ Mutex::Locker lock(m_thread_list.GetMutex());
+
+ ThreadSP thread_sp = m_thread_list.RemoveThreadByID(tid, false);
+ thread_sp.reset();
+ m_seen_initial_stop.erase(tid);
+ }
+
+ m_message_queue.pop();
+ }
+}
+
+bool
+ProcessFreeBSD::IsAlive()
+{
+ StateType state = GetPrivateState();
+ return state != eStateDetached
+ && state != eStateExited
+ && state != eStateInvalid
+ && state != eStateUnloaded;
+}
+
+size_t
+ProcessFreeBSD::DoReadMemory(addr_t vm_addr,
+ void *buf, size_t size, Error &error)
+{
+ assert(m_monitor);
+ return m_monitor->ReadMemory(vm_addr, buf, size, error);
+}
+
+size_t
+ProcessFreeBSD::DoWriteMemory(addr_t vm_addr, const void *buf, size_t size,
+ Error &error)
+{
+ assert(m_monitor);
+ return m_monitor->WriteMemory(vm_addr, buf, size, error);
+}
+
+addr_t
+ProcessFreeBSD::DoAllocateMemory(size_t size, uint32_t permissions,
+ Error &error)
+{
+ addr_t allocated_addr = LLDB_INVALID_ADDRESS;
+
+ unsigned prot = 0;
+ if (permissions & lldb::ePermissionsReadable)
+ prot |= eMmapProtRead;
+ if (permissions & lldb::ePermissionsWritable)
+ prot |= eMmapProtWrite;
+ if (permissions & lldb::ePermissionsExecutable)
+ prot |= eMmapProtExec;
+
+ if (InferiorCallMmap(this, allocated_addr, 0, size, prot,
+ eMmapFlagsAnon | eMmapFlagsPrivate, -1, 0)) {
+ m_addr_to_mmap_size[allocated_addr] = size;
+ error.Clear();
+ } else {
+ allocated_addr = LLDB_INVALID_ADDRESS;
+ error.SetErrorStringWithFormat("unable to allocate %zu bytes of memory with permissions %s", size, GetPermissionsAsCString (permissions));
+ }
+
+ return allocated_addr;
+}
+
+Error
+ProcessFreeBSD::DoDeallocateMemory(lldb::addr_t addr)
+{
+ Error error;
+ MMapMap::iterator pos = m_addr_to_mmap_size.find(addr);
+ if (pos != m_addr_to_mmap_size.end() &&
+ InferiorCallMunmap(this, addr, pos->second))
+ m_addr_to_mmap_size.erase (pos);
+ else
+ error.SetErrorStringWithFormat("unable to deallocate memory at 0x%" PRIx64, addr);
+
+ return error;
+}
+
+size_t
+ProcessFreeBSD::GetSoftwareBreakpointTrapOpcode(BreakpointSite* bp_site)
+{
+ static const uint8_t g_aarch64_opcode[] = { 0x00, 0x00, 0x20, 0xD4 };
+ static const uint8_t g_i386_opcode[] = { 0xCC };
+
+ ArchSpec arch = GetTarget().GetArchitecture();
+ const uint8_t *opcode = NULL;
+ size_t opcode_size = 0;
+
+ switch (arch.GetMachine())
+ {
+ default:
+ assert(false && "CPU type not supported!");
+ break;
+
+ case llvm::Triple::arm:
+ {
+ // The ARM reference recommends the use of 0xe7fddefe and 0xdefe
+ // but the linux kernel does otherwise.
+ static const uint8_t g_arm_breakpoint_opcode[] = { 0xf0, 0x01, 0xf0, 0xe7 };
+ static const uint8_t g_thumb_breakpoint_opcode[] = { 0x01, 0xde };
+
+ lldb::BreakpointLocationSP bp_loc_sp (bp_site->GetOwnerAtIndex (0));
+ AddressClass addr_class = eAddressClassUnknown;
+
+ if (bp_loc_sp)
+ addr_class = bp_loc_sp->GetAddress ().GetAddressClass ();
+
+ if (addr_class == eAddressClassCodeAlternateISA
+ || (addr_class == eAddressClassUnknown
+ && bp_loc_sp->GetAddress().GetOffset() & 1))
+ {
+ opcode = g_thumb_breakpoint_opcode;
+ opcode_size = sizeof(g_thumb_breakpoint_opcode);
+ }
+ else
+ {
+ opcode = g_arm_breakpoint_opcode;
+ opcode_size = sizeof(g_arm_breakpoint_opcode);
+ }
+ }
+ break;
+ case llvm::Triple::aarch64:
+ opcode = g_aarch64_opcode;
+ opcode_size = sizeof(g_aarch64_opcode);
+ break;
+
+ case llvm::Triple::x86:
+ case llvm::Triple::x86_64:
+ opcode = g_i386_opcode;
+ opcode_size = sizeof(g_i386_opcode);
+ break;
+ }
+
+ bp_site->SetTrapOpcode(opcode, opcode_size);
+ return opcode_size;
+}
+
+Error
+ProcessFreeBSD::EnableBreakpointSite(BreakpointSite *bp_site)
+{
+ return EnableSoftwareBreakpoint(bp_site);
+}
+
+Error
+ProcessFreeBSD::DisableBreakpointSite(BreakpointSite *bp_site)
+{
+ return DisableSoftwareBreakpoint(bp_site);
+}
+
+Error
+ProcessFreeBSD::EnableWatchpoint(Watchpoint *wp, bool notify)
+{
+ Error error;
+ if (wp)
+ {
+ user_id_t watchID = wp->GetID();
+ addr_t addr = wp->GetLoadAddress();
+ Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet(POSIX_LOG_WATCHPOINTS));
+ if (log)
+ log->Printf ("ProcessFreeBSD::EnableWatchpoint(watchID = %" PRIu64 ")",
+ watchID);
+ if (wp->IsEnabled())
+ {
+ if (log)
+ log->Printf("ProcessFreeBSD::EnableWatchpoint(watchID = %" PRIu64
+ ") addr = 0x%8.8" PRIx64 ": watchpoint already enabled.",
+ watchID, (uint64_t)addr);
+ return error;
+ }
+
+ // Try to find a vacant watchpoint slot in the inferiors' main thread
+ uint32_t wp_hw_index = LLDB_INVALID_INDEX32;
+ Mutex::Locker lock(m_thread_list.GetMutex());
+ FreeBSDThread *thread = static_cast<FreeBSDThread*>(
+ m_thread_list.GetThreadAtIndex(0, false).get());
+
+ if (thread)
+ wp_hw_index = thread->FindVacantWatchpointIndex();
+
+ if (wp_hw_index == LLDB_INVALID_INDEX32)
+ {
+ error.SetErrorString("Setting hardware watchpoint failed.");
+ }
+ else
+ {
+ wp->SetHardwareIndex(wp_hw_index);
+ bool wp_enabled = true;
+ uint32_t thread_count = m_thread_list.GetSize(false);
+ for (uint32_t i = 0; i < thread_count; ++i)
+ {
+ thread = static_cast<FreeBSDThread*>(
+ m_thread_list.GetThreadAtIndex(i, false).get());
+ if (thread)
+ wp_enabled &= thread->EnableHardwareWatchpoint(wp);
+ else
+ wp_enabled = false;
+ }
+ if (wp_enabled)
+ {
+ wp->SetEnabled(true, notify);
+ return error;
+ }
+ else
+ {
+ // Watchpoint enabling failed on at least one
+ // of the threads so roll back all of them
+ DisableWatchpoint(wp, false);
+ error.SetErrorString("Setting hardware watchpoint failed");
+ }
+ }
+ }
+ else
+ error.SetErrorString("Watchpoint argument was NULL.");
+ return error;
+}
+
+Error
+ProcessFreeBSD::DisableWatchpoint(Watchpoint *wp, bool notify)
+{
+ Error error;
+ if (wp)
+ {
+ user_id_t watchID = wp->GetID();
+ addr_t addr = wp->GetLoadAddress();
+ Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet(POSIX_LOG_WATCHPOINTS));
+ if (log)
+ log->Printf("ProcessFreeBSD::DisableWatchpoint(watchID = %" PRIu64 ")",
+ watchID);
+ if (!wp->IsEnabled())
+ {
+ if (log)
+ log->Printf("ProcessFreeBSD::DisableWatchpoint(watchID = %" PRIu64
+ ") addr = 0x%8.8" PRIx64 ": watchpoint already disabled.",
+ watchID, (uint64_t)addr);
+ // This is needed (for now) to keep watchpoints disabled correctly
+ wp->SetEnabled(false, notify);
+ return error;
+ }
+
+ if (wp->IsHardware())
+ {
+ bool wp_disabled = true;
+ Mutex::Locker lock(m_thread_list.GetMutex());
+ uint32_t thread_count = m_thread_list.GetSize(false);
+ for (uint32_t i = 0; i < thread_count; ++i)
+ {
+ FreeBSDThread *thread = static_cast<FreeBSDThread*>(
+ m_thread_list.GetThreadAtIndex(i, false).get());
+ if (thread)
+ wp_disabled &= thread->DisableHardwareWatchpoint(wp);
+ else
+ wp_disabled = false;
+ }
+ if (wp_disabled)
+ {
+ wp->SetHardwareIndex(LLDB_INVALID_INDEX32);
+ wp->SetEnabled(false, notify);
+ return error;
+ }
+ else
+ error.SetErrorString("Disabling hardware watchpoint failed");
+ }
+ }
+ else
+ error.SetErrorString("Watchpoint argument was NULL.");
+ return error;
+}
+
+Error
+ProcessFreeBSD::GetWatchpointSupportInfo(uint32_t &num)
+{
+ Error error;
+ Mutex::Locker lock(m_thread_list.GetMutex());
+ FreeBSDThread *thread = static_cast<FreeBSDThread*>(
+ m_thread_list.GetThreadAtIndex(0, false).get());
+ if (thread)
+ num = thread->NumSupportedHardwareWatchpoints();
+ else
+ error.SetErrorString("Process does not exist.");
+ return error;
+}
+
+Error
+ProcessFreeBSD::GetWatchpointSupportInfo(uint32_t &num, bool &after)
+{
+ Error error = GetWatchpointSupportInfo(num);
+ // Watchpoints trigger and halt the inferior after
+ // the corresponding instruction has been executed.
+ after = true;
+ return error;
+}
+
+uint32_t
+ProcessFreeBSD::UpdateThreadListIfNeeded()
+{
+ Mutex::Locker lock(m_thread_list.GetMutex());
+ // Do not allow recursive updates.
+ return m_thread_list.GetSize(false);
+}
+
+#if 0
+bool
+ProcessFreeBSD::UpdateThreadList(ThreadList &old_thread_list, ThreadList &new_thread_list)
+{
+ Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
+ if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
+ log->Printf ("ProcessFreeBSD::%s() (pid = %" PRIi64 ")", __FUNCTION__, GetID());
+
+ bool has_updated = false;
+ // Update the process thread list with this new thread.
+ // FIXME: We should be using tid, not pid.
+ assert(m_monitor);
+ ThreadSP thread_sp (old_thread_list.FindThreadByID (GetID(), false));
+ if (!thread_sp) {
+ thread_sp.reset(CreateNewFreeBSDThread(*this, GetID()));
+ has_updated = true;
+ }
+
+ if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
+ log->Printf ("ProcessFreeBSD::%s() updated pid = %" PRIi64, __FUNCTION__, GetID());
+ new_thread_list.AddThread(thread_sp);
+
+ return has_updated; // the list has been updated
+}
+#endif
+
+ByteOrder
+ProcessFreeBSD::GetByteOrder() const
+{
+ // FIXME: We should be able to extract this value directly. See comment in
+ // ProcessFreeBSD().
+ return m_byte_order;
+}
+
+size_t
+ProcessFreeBSD::PutSTDIN(const char *buf, size_t len, Error &error)
+{
+ ssize_t status;
+ if ((status = write(m_monitor->GetTerminalFD(), buf, len)) < 0)
+ {
+ error.SetErrorToErrno();
+ return 0;
+ }
+ return status;
+}
+
+//------------------------------------------------------------------------------
+// Utility functions.
+
+bool
+ProcessFreeBSD::HasExited()
+{
+ switch (GetPrivateState())
+ {
+ default:
+ break;
+
+ case eStateDetached:
+ case eStateExited:
+ return true;
+ }
+
+ return false;
+}
+
+bool
+ProcessFreeBSD::IsStopped()
+{
+ switch (GetPrivateState())
+ {
+ default:
+ break;
+
+ case eStateStopped:
+ case eStateCrashed:
+ case eStateSuspended:
+ return true;
+ }
+
+ return false;
+}
+
+bool
+ProcessFreeBSD::IsAThreadRunning()
+{
+ bool is_running = false;
+ Mutex::Locker lock(m_thread_list.GetMutex());
+ uint32_t thread_count = m_thread_list.GetSize(false);
+ for (uint32_t i = 0; i < thread_count; ++i)
+ {
+ FreeBSDThread *thread = static_cast<FreeBSDThread*>(
+ m_thread_list.GetThreadAtIndex(i, false).get());
+ StateType thread_state = thread->GetState();
+ if (thread_state == eStateRunning || thread_state == eStateStepping)
+ {
+ is_running = true;
+ break;
+ }
+ }
+ return is_running;
+}
+
+const DataBufferSP
+ProcessFreeBSD::GetAuxvData ()
+{
+ // If we're the local platform, we can ask the host for auxv data.
+ PlatformSP platform_sp = m_target.GetPlatform ();
+ if (platform_sp && platform_sp->IsHost ())
+ return lldb_private::Host::GetAuxvData(this);
+
+ // Somewhat unexpected - the process is not running locally or we don't have a platform.
+ assert (false && "no platform or not the host - how did we get here with ProcessFreeBSD?");
+ return DataBufferSP ();
+}