diff options
Diffstat (limited to 'lldb/source/Plugins/Process/Darwin/NativeThreadDarwin.cpp')
-rw-r--r-- | lldb/source/Plugins/Process/Darwin/NativeThreadDarwin.cpp | 281 |
1 files changed, 0 insertions, 281 deletions
diff --git a/lldb/source/Plugins/Process/Darwin/NativeThreadDarwin.cpp b/lldb/source/Plugins/Process/Darwin/NativeThreadDarwin.cpp deleted file mode 100644 index bcd6d8c2c4c1..000000000000 --- a/lldb/source/Plugins/Process/Darwin/NativeThreadDarwin.cpp +++ /dev/null @@ -1,281 +0,0 @@ -//===-- NativeThreadDarwin.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 "NativeThreadDarwin.h" - -// C includes -#include <libproc.h> - -// LLDB includes -#include "lldb/Utility/Stream.h" - -#include "NativeProcessDarwin.h" - -using namespace lldb; -using namespace lldb_private; -using namespace lldb_private::process_darwin; - -uint64_t NativeThreadDarwin::GetGloballyUniqueThreadIDForMachPortID( - ::thread_t mach_port_id) { - thread_identifier_info_data_t tident; - mach_msg_type_number_t tident_count = THREAD_IDENTIFIER_INFO_COUNT; - - auto mach_err = ::thread_info(mach_port_id, THREAD_IDENTIFIER_INFO, - (thread_info_t)&tident, &tident_count); - if (mach_err != KERN_SUCCESS) { - // When we fail to get thread info for the supposed port, assume it is - // really a globally unique thread id already, or return the best thing we - // can, which is the thread port. - return mach_port_id; - } - return tident.thread_id; -} - -NativeThreadDarwin::NativeThreadDarwin(NativeProcessDarwin *process, - bool is_64_bit, - lldb::tid_t unique_thread_id, - ::thread_t mach_thread_port) - : NativeThreadProtocol(process, unique_thread_id), - m_mach_thread_port(mach_thread_port), m_basic_info(), - m_proc_threadinfo() {} - -bool NativeThreadDarwin::GetIdentifierInfo() { - // Don't try to get the thread info once and cache it for the life of the - // thread. It changes over time, for instance if the thread name changes, - // then the thread_handle also changes... So you have to refetch it every - // time. - mach_msg_type_number_t count = THREAD_IDENTIFIER_INFO_COUNT; - kern_return_t kret = ::thread_info(m_mach_thread_port, THREAD_IDENTIFIER_INFO, - (thread_info_t)&m_ident_info, &count); - return kret == KERN_SUCCESS; - - return false; -} - -std::string NativeThreadDarwin::GetName() { - std::string name; - - if (GetIdentifierInfo()) { - auto process_sp = GetProcess(); - if (!process_sp) { - name = "<unavailable>"; - return name; - } - - int len = ::proc_pidinfo(process_sp->GetID(), PROC_PIDTHREADINFO, - m_ident_info.thread_handle, &m_proc_threadinfo, - sizeof(m_proc_threadinfo)); - - if (len && m_proc_threadinfo.pth_name[0]) - name = m_proc_threadinfo.pth_name; - } - return name; -} - -lldb::StateType NativeThreadDarwin::GetState() { - // TODO implement - return eStateInvalid; -} - -bool NativeThreadDarwin::GetStopReason(ThreadStopInfo &stop_info, - std::string &description) { - // TODO implement - return false; -} - -NativeRegisterContextSP NativeThreadDarwin::GetRegisterContext() { - // TODO implement - return NativeRegisterContextSP(); -} - -Status NativeThreadDarwin::SetWatchpoint(lldb::addr_t addr, size_t size, - uint32_t watch_flags, bool hardware) { - Status error; - error.SetErrorString("not yet implemented"); - return error; -} - -Status NativeThreadDarwin::RemoveWatchpoint(lldb::addr_t addr) { - Status error; - error.SetErrorString("not yet implemented"); - return error; -} - -void NativeThreadDarwin::Dump(Stream &stream) const { -// This is what we really want once we have the thread class wired up. -#if 0 - DNBLogThreaded("[%3u] #%3u tid: 0x%8.8" PRIx64 ", pc: 0x%16.16" PRIx64 ", sp: 0x%16.16" PRIx64 ", user: %d.%6.6d, system: %d.%6.6d, cpu: %2d, policy: %2d, run_state: %2d (%s), flags: %2d, suspend_count: %2d (current %2d), sleep_time: %d", - index, - m_seq_id, - m_unique_id, - GetPC(INVALID_NUB_ADDRESS), - GetSP(INVALID_NUB_ADDRESS), - m_basic_info.user_time.seconds, m_basic_info.user_time.microseconds, - m_basic_info.system_time.seconds, m_basic_info.system_time.microseconds, - m_basic_info.cpu_usage, - m_basic_info.policy, - m_basic_info.run_state, - thread_run_state, - m_basic_info.flags, - m_basic_info.suspend_count, m_suspend_count, - m_basic_info.sleep_time); - -#else - // Here's all we have right now. - stream.Printf("tid: 0x%8.8" PRIx64 ", thread port: 0x%4.4x", GetID(), - m_mach_thread_port); -#endif -} - -bool NativeThreadDarwin::NotifyException(MachException::Data &exc) { -// TODO implement this. -#if 0 - // Allow the arch specific protocol to process (MachException::Data &)exc - // first before possible reassignment of m_stop_exception with exc. See - // also MachThread::GetStopException(). - bool handled = m_arch_up->NotifyException(exc); - - if (m_stop_exception.IsValid()) - { - // We may have more than one exception for a thread, but we need to - // only remember the one that we will say is the reason we stopped. We - // may have been single stepping and also gotten a signal exception, so - // just remember the most pertinent one. - if (m_stop_exception.IsBreakpoint()) - m_stop_exception = exc; - } - else - { - m_stop_exception = exc; - } - - return handled; -#else - // Pretend we handled it. - return true; -#endif -} - -bool NativeThreadDarwin::ShouldStop(bool &step_more) const { -// TODO: implement this -#if 0 - // See if this thread is at a breakpoint? - DNBBreakpoint *bp = CurrentBreakpoint(); - - if (bp) - { - // This thread is sitting at a breakpoint, ask the breakpoint if we - // should be stopping here. - return true; - } - else - { - if (m_arch_up->StepNotComplete()) - { - step_more = true; - return false; - } - // The thread state is used to let us know what the thread was trying - // to do. MachThread::ThreadWillResume() will set the thread state to - // various values depending if the thread was the current thread and if - // it was to be single stepped, or resumed. - if (GetState() == eStateRunning) - { - // If our state is running, then we should continue as we are in - // the process of stepping over a breakpoint. - return false; - } - else - { - // Stop if we have any kind of valid exception for this thread. - if (GetStopException().IsValid()) - return true; - } - } - return false; -#else - return false; -#endif -} - -void NativeThreadDarwin::ThreadDidStop() { -// TODO implement this. -#if 0 - // This thread has existed prior to resuming under debug nub control, and - // has just been stopped. Do any cleanup that needs to be done after - // running. - - // The thread state and breakpoint will still have the same values as they - // had prior to resuming the thread, so it makes it easy to check if we - // were trying to step a thread, or we tried to resume while being at a - // breakpoint. - - // When this method gets called, the process state is still in the state it - // was in while running so we can act accordingly. - m_arch_up->ThreadDidStop(); - - - // We may have suspended this thread so the primary thread could step - // without worrying about race conditions, so lets restore our suspend - // count. - RestoreSuspendCountAfterStop(); - - // Update the basic information for a thread - MachThread::GetBasicInfo(m_mach_port_number, &m_basic_info); - - if (m_basic_info.suspend_count > 0) - SetState(eStateSuspended); - else - SetState(eStateStopped); -#endif -} - -bool NativeThreadDarwin::MachPortNumberIsValid(::thread_t thread) { - return thread != (::thread_t)(0); -} - -const struct thread_basic_info *NativeThreadDarwin::GetBasicInfo() const { - if (GetBasicInfo(m_mach_thread_port, &m_basic_info)) - return &m_basic_info; - return NULL; -} - -bool NativeThreadDarwin::GetBasicInfo(::thread_t thread, - struct thread_basic_info *basicInfoPtr) { - if (MachPortNumberIsValid(thread)) { - unsigned int info_count = THREAD_BASIC_INFO_COUNT; - kern_return_t err = ::thread_info(thread, THREAD_BASIC_INFO, - (thread_info_t)basicInfoPtr, &info_count); - if (err == KERN_SUCCESS) - return true; - } - ::memset(basicInfoPtr, 0, sizeof(struct thread_basic_info)); - return false; -} - -bool NativeThreadDarwin::IsUserReady() const { - if (m_basic_info.run_state == 0) - GetBasicInfo(); - - switch (m_basic_info.run_state) { - default: - case TH_STATE_UNINTERRUPTIBLE: - break; - - case TH_STATE_RUNNING: - case TH_STATE_STOPPED: - case TH_STATE_WAITING: - case TH_STATE_HALTED: - return true; - } - return false; -} - -NativeProcessDarwinSP NativeThreadDarwin::GetNativeProcessDarwinSP() { - return std::static_pointer_cast<NativeProcessDarwin>(GetProcess()); -} |