diff options
Diffstat (limited to 'lldb/tools/debugserver/source/MacOSX/MachThread.cpp')
| -rw-r--r-- | lldb/tools/debugserver/source/MacOSX/MachThread.cpp | 1489 |
1 files changed, 675 insertions, 814 deletions
diff --git a/lldb/tools/debugserver/source/MacOSX/MachThread.cpp b/lldb/tools/debugserver/source/MacOSX/MachThread.cpp index 89748415608..36aa8c04bf2 100644 --- a/lldb/tools/debugserver/source/MacOSX/MachThread.cpp +++ b/lldb/tools/debugserver/source/MacOSX/MachThread.cpp @@ -11,912 +11,773 @@ // //===----------------------------------------------------------------------===// -#include <inttypes.h> -#include <mach/thread_policy.h> -#include <dlfcn.h> #include "MachThread.h" -#include "MachProcess.h" -#include "DNBLog.h" #include "DNB.h" +#include "DNBLog.h" +#include "MachProcess.h" #include "ThreadInfo.h" +#include <dlfcn.h> +#include <inttypes.h> +#include <mach/thread_policy.h> -static uint32_t -GetSequenceID() -{ - static uint32_t g_nextID = 0; - return ++g_nextID; -} - -MachThread::MachThread (MachProcess *process, bool is_64_bit, uint64_t unique_thread_id, thread_t mach_port_num) : - m_process (process), - m_unique_id (unique_thread_id), - m_mach_port_number (mach_port_num), - m_seq_id (GetSequenceID()), - m_state (eStateUnloaded), - m_state_mutex (PTHREAD_MUTEX_RECURSIVE), - m_suspend_count (0), - m_stop_exception (), - m_arch_ap (DNBArchProtocol::Create (this)), - m_reg_sets (NULL), - m_num_reg_sets (0), - m_ident_info(), - m_proc_threadinfo(), - m_dispatch_queue_name(), - m_is_64_bit(is_64_bit), - m_pthread_qos_class_decode (nullptr) -{ - nub_size_t num_reg_sets = 0; - m_reg_sets = m_arch_ap->GetRegisterSetInfo (&num_reg_sets); - m_num_reg_sets = num_reg_sets; - - m_pthread_qos_class_decode = (unsigned int (*)(unsigned long, int*, unsigned long*)) dlsym (RTLD_DEFAULT, "_pthread_qos_class_decode"); - - // Get the thread state so we know if a thread is in a state where we can't - // muck with it and also so we get the suspend count correct in case it was - // already suspended - GetBasicInfo(); - DNBLogThreadedIf(LOG_THREAD | LOG_VERBOSE, "MachThread::MachThread ( process = %p, tid = 0x%8.8" PRIx64 ", seq_id = %u )", &m_process, m_unique_id, m_seq_id); -} - -MachThread::~MachThread() -{ - DNBLogThreadedIf(LOG_THREAD | LOG_VERBOSE, "MachThread::~MachThread() for tid = 0x%8.8" PRIx64 " (%u)", m_unique_id, m_seq_id); -} - - +static uint32_t GetSequenceID() { + static uint32_t g_nextID = 0; + return ++g_nextID; +} + +MachThread::MachThread(MachProcess *process, bool is_64_bit, + uint64_t unique_thread_id, thread_t mach_port_num) + : m_process(process), m_unique_id(unique_thread_id), + m_mach_port_number(mach_port_num), m_seq_id(GetSequenceID()), + m_state(eStateUnloaded), m_state_mutex(PTHREAD_MUTEX_RECURSIVE), + m_suspend_count(0), m_stop_exception(), + m_arch_ap(DNBArchProtocol::Create(this)), m_reg_sets(NULL), + m_num_reg_sets(0), m_ident_info(), m_proc_threadinfo(), + m_dispatch_queue_name(), m_is_64_bit(is_64_bit), + m_pthread_qos_class_decode(nullptr) { + nub_size_t num_reg_sets = 0; + m_reg_sets = m_arch_ap->GetRegisterSetInfo(&num_reg_sets); + m_num_reg_sets = num_reg_sets; + + m_pthread_qos_class_decode = + (unsigned int (*)(unsigned long, int *, unsigned long *))dlsym( + RTLD_DEFAULT, "_pthread_qos_class_decode"); + + // Get the thread state so we know if a thread is in a state where we can't + // muck with it and also so we get the suspend count correct in case it was + // already suspended + GetBasicInfo(); + DNBLogThreadedIf(LOG_THREAD | LOG_VERBOSE, + "MachThread::MachThread ( process = %p, tid = 0x%8.8" PRIx64 + ", seq_id = %u )", + &m_process, m_unique_id, m_seq_id); +} + +MachThread::~MachThread() { + DNBLogThreadedIf(LOG_THREAD | LOG_VERBOSE, + "MachThread::~MachThread() for tid = 0x%8.8" PRIx64 " (%u)", + m_unique_id, m_seq_id); +} + +void MachThread::Suspend() { + DNBLogThreadedIf(LOG_THREAD | LOG_VERBOSE, "MachThread::%s ( )", + __FUNCTION__); + if (MachPortNumberIsValid(m_mach_port_number)) { + DNBError err(::thread_suspend(m_mach_port_number), DNBError::MachKernel); + if (err.Success()) + m_suspend_count++; + if (DNBLogCheckLogBit(LOG_THREAD) || err.Fail()) + err.LogThreaded("::thread_suspend (%4.4" PRIx32 ")", m_mach_port_number); + } +} + +void MachThread::Resume(bool others_stopped) { + DNBLogThreadedIf(LOG_THREAD | LOG_VERBOSE, "MachThread::%s ( )", + __FUNCTION__); + if (MachPortNumberIsValid(m_mach_port_number)) { + SetSuspendCountBeforeResume(others_stopped); + } +} + +bool MachThread::SetSuspendCountBeforeResume(bool others_stopped) { + DNBLogThreadedIf(LOG_THREAD | LOG_VERBOSE, "MachThread::%s ( )", + __FUNCTION__); + DNBError err; + if (MachPortNumberIsValid(m_mach_port_number) == false) + return false; -void -MachThread::Suspend() -{ - DNBLogThreadedIf(LOG_THREAD | LOG_VERBOSE, "MachThread::%s ( )", __FUNCTION__); - if (MachPortNumberIsValid(m_mach_port_number)) - { - DNBError err(::thread_suspend (m_mach_port_number), DNBError::MachKernel); - if (err.Success()) - m_suspend_count++; - if (DNBLogCheckLogBit(LOG_THREAD) || err.Fail()) - err.LogThreaded("::thread_suspend (%4.4" PRIx32 ")", m_mach_port_number); + integer_t times_to_resume; + + if (others_stopped) { + if (GetBasicInfo()) { + times_to_resume = m_basic_info.suspend_count; + m_suspend_count = -(times_to_resume - m_suspend_count); + } else + times_to_resume = 0; + } else { + times_to_resume = m_suspend_count; + m_suspend_count = 0; + } + + if (times_to_resume > 0) { + while (times_to_resume > 0) { + err = ::thread_resume(m_mach_port_number); + if (DNBLogCheckLogBit(LOG_THREAD) || err.Fail()) + err.LogThreaded("::thread_resume (%4.4" PRIx32 ")", m_mach_port_number); + if (err.Success()) + --times_to_resume; + else { + if (GetBasicInfo()) + times_to_resume = m_basic_info.suspend_count; + else + times_to_resume = 0; + } } + } + return true; } -void -MachThread::Resume(bool others_stopped) -{ - DNBLogThreadedIf(LOG_THREAD | LOG_VERBOSE, "MachThread::%s ( )", __FUNCTION__); - if (MachPortNumberIsValid(m_mach_port_number)) - { - SetSuspendCountBeforeResume(others_stopped); - } -} +bool MachThread::RestoreSuspendCountAfterStop() { + DNBLogThreadedIf(LOG_THREAD | LOG_VERBOSE, "MachThread::%s ( )", + __FUNCTION__); + DNBError err; + if (MachPortNumberIsValid(m_mach_port_number) == false) + return false; -bool -MachThread::SetSuspendCountBeforeResume(bool others_stopped) -{ - DNBLogThreadedIf(LOG_THREAD | LOG_VERBOSE, "MachThread::%s ( )", __FUNCTION__); - DNBError err; - if (MachPortNumberIsValid(m_mach_port_number) == false) - return false; - - integer_t times_to_resume; - - if (others_stopped) - { + if (m_suspend_count > 0) { + while (m_suspend_count > 0) { + err = ::thread_resume(m_mach_port_number); + if (DNBLogCheckLogBit(LOG_THREAD) || err.Fail()) + err.LogThreaded("::thread_resume (%4.4" PRIx32 ")", m_mach_port_number); + if (err.Success()) + --m_suspend_count; + else { if (GetBasicInfo()) - { - times_to_resume = m_basic_info.suspend_count; - m_suspend_count = - (times_to_resume - m_suspend_count); - } + m_suspend_count = m_basic_info.suspend_count; else - times_to_resume = 0; + m_suspend_count = 0; + return false; // ??? + } } - else - { - times_to_resume = m_suspend_count; - m_suspend_count = 0; - } - - if (times_to_resume > 0) - { - while (times_to_resume > 0) - { - err = ::thread_resume (m_mach_port_number); - if (DNBLogCheckLogBit(LOG_THREAD) || err.Fail()) - err.LogThreaded("::thread_resume (%4.4" PRIx32 ")", m_mach_port_number); - if (err.Success()) - --times_to_resume; - else - { - if (GetBasicInfo()) - times_to_resume = m_basic_info.suspend_count; - else - times_to_resume = 0; - } - } - } - return true; -} - -bool -MachThread::RestoreSuspendCountAfterStop () -{ - DNBLogThreadedIf(LOG_THREAD | LOG_VERBOSE, "MachThread::%s ( )", __FUNCTION__); - DNBError err; - if (MachPortNumberIsValid(m_mach_port_number) == false) + } else if (m_suspend_count < 0) { + while (m_suspend_count < 0) { + err = ::thread_suspend(m_mach_port_number); + if (err.Success()) + ++m_suspend_count; + if (DNBLogCheckLogBit(LOG_THREAD) || err.Fail()) { + err.LogThreaded("::thread_suspend (%4.4" PRIx32 ")", + m_mach_port_number); return false; - - if (m_suspend_count > 0) - { - while (m_suspend_count > 0) - { - err = ::thread_resume (m_mach_port_number); - if (DNBLogCheckLogBit(LOG_THREAD) || err.Fail()) - err.LogThreaded("::thread_resume (%4.4" PRIx32 ")", m_mach_port_number); - if (err.Success()) - --m_suspend_count; - else - { - if (GetBasicInfo()) - m_suspend_count = m_basic_info.suspend_count; - else - m_suspend_count = 0; - return false; // ??? - } - } + } } - else if (m_suspend_count < 0) - { - while (m_suspend_count < 0) - { - err = ::thread_suspend (m_mach_port_number); - if (err.Success()) - ++m_suspend_count; - if (DNBLogCheckLogBit(LOG_THREAD) || err.Fail()) - { - err.LogThreaded("::thread_suspend (%4.4" PRIx32 ")", m_mach_port_number); - return false; - } + } + return true; +} + +const char *MachThread::GetBasicInfoAsString() const { + static char g_basic_info_string[1024]; + struct thread_basic_info basicInfo; + + if (GetBasicInfo(m_mach_port_number, &basicInfo)) { + + // char run_state_str[32]; + // size_t run_state_str_size = sizeof(run_state_str); + // switch (basicInfo.run_state) + // { + // case TH_STATE_RUNNING: strncpy(run_state_str, "running", + // run_state_str_size); break; + // case TH_STATE_STOPPED: strncpy(run_state_str, "stopped", + // run_state_str_size); break; + // case TH_STATE_WAITING: strncpy(run_state_str, "waiting", + // run_state_str_size); break; + // case TH_STATE_UNINTERRUPTIBLE: strncpy(run_state_str, + // "uninterruptible", run_state_str_size); break; + // case TH_STATE_HALTED: strncpy(run_state_str, "halted", + // run_state_str_size); break; + // default: snprintf(run_state_str, + // run_state_str_size, "%d", basicInfo.run_state); break; // ??? + // } + float user = (float)basicInfo.user_time.seconds + + (float)basicInfo.user_time.microseconds / 1000000.0f; + float system = (float)basicInfo.user_time.seconds + + (float)basicInfo.user_time.microseconds / 1000000.0f; + snprintf(g_basic_info_string, sizeof(g_basic_info_string), + "Thread 0x%8.8" PRIx64 ": user=%f system=%f cpu=%d sleep_time=%d", + m_unique_id, user, system, basicInfo.cpu_usage, + basicInfo.sleep_time); + + return g_basic_info_string; + } + return NULL; +} + +// Finds the Mach port number for a given thread in the inferior process' port +// namespace. +thread_t MachThread::InferiorThreadID() const { + mach_msg_type_number_t i; + mach_port_name_array_t names; + mach_port_type_array_t types; + mach_msg_type_number_t ncount, tcount; + thread_t inferior_tid = INVALID_NUB_THREAD; + task_t my_task = ::mach_task_self(); + task_t task = m_process->Task().TaskPort(); + + kern_return_t kret = + ::mach_port_names(task, &names, &ncount, &types, &tcount); + if (kret == KERN_SUCCESS) { + + for (i = 0; i < ncount; i++) { + mach_port_t my_name; + mach_msg_type_name_t my_type; + + kret = ::mach_port_extract_right(task, names[i], MACH_MSG_TYPE_COPY_SEND, + &my_name, &my_type); + if (kret == KERN_SUCCESS) { + ::mach_port_deallocate(my_task, my_name); + if (my_name == m_mach_port_number) { + inferior_tid = names[i]; + break; } + } } - return true; -} - - -const char * -MachThread::GetBasicInfoAsString () const -{ - static char g_basic_info_string[1024]; - struct thread_basic_info basicInfo; - - if (GetBasicInfo(m_mach_port_number, &basicInfo)) - { - -// char run_state_str[32]; -// size_t run_state_str_size = sizeof(run_state_str); -// switch (basicInfo.run_state) -// { -// case TH_STATE_RUNNING: strncpy(run_state_str, "running", run_state_str_size); break; -// case TH_STATE_STOPPED: strncpy(run_state_str, "stopped", run_state_str_size); break; -// case TH_STATE_WAITING: strncpy(run_state_str, "waiting", run_state_str_size); break; -// case TH_STATE_UNINTERRUPTIBLE: strncpy(run_state_str, "uninterruptible", run_state_str_size); break; -// case TH_STATE_HALTED: strncpy(run_state_str, "halted", run_state_str_size); break; -// default: snprintf(run_state_str, run_state_str_size, "%d", basicInfo.run_state); break; // ??? -// } - float user = (float)basicInfo.user_time.seconds + (float)basicInfo.user_time.microseconds / 1000000.0f; - float system = (float)basicInfo.user_time.seconds + (float)basicInfo.user_time.microseconds / 1000000.0f; - snprintf(g_basic_info_string, sizeof(g_basic_info_string), "Thread 0x%8.8" PRIx64 ": user=%f system=%f cpu=%d sleep_time=%d", - m_unique_id, - user, - system, - basicInfo.cpu_usage, - basicInfo.sleep_time); - - return g_basic_info_string; - } - return NULL; -} - -// Finds the Mach port number for a given thread in the inferior process' port namespace. -thread_t -MachThread::InferiorThreadID() const -{ - mach_msg_type_number_t i; - mach_port_name_array_t names; - mach_port_type_array_t types; - mach_msg_type_number_t ncount, tcount; - thread_t inferior_tid = INVALID_NUB_THREAD; - task_t my_task = ::mach_task_self(); - task_t task = m_process->Task().TaskPort(); - - kern_return_t kret = ::mach_port_names (task, &names, &ncount, &types, &tcount); - if (kret == KERN_SUCCESS) - { - - for (i = 0; i < ncount; i++) - { - mach_port_t my_name; - mach_msg_type_name_t my_type; - - kret = ::mach_port_extract_right (task, names[i], MACH_MSG_TYPE_COPY_SEND, &my_name, &my_type); - if (kret == KERN_SUCCESS) - { - ::mach_port_deallocate (my_task, my_name); - if (my_name == m_mach_port_number) - { - inferior_tid = names[i]; - break; - } - } - } - // Free up the names and types - ::vm_deallocate (my_task, (vm_address_t) names, ncount * sizeof (mach_port_name_t)); - ::vm_deallocate (my_task, (vm_address_t) types, tcount * sizeof (mach_port_type_t)); - } - return inferior_tid; -} - -bool -MachThread::IsUserReady() -{ - 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; -} - -struct thread_basic_info * -MachThread::GetBasicInfo () -{ - if (MachThread::GetBasicInfo(m_mach_port_number, &m_basic_info)) - return &m_basic_info; - return NULL; -} - - -bool -MachThread::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 -MachThread::ThreadIDIsValid(uint64_t thread) -{ - return thread != 0; -} - -bool -MachThread::MachPortNumberIsValid(thread_t thread) -{ - return thread != THREAD_NULL; -} - -bool -MachThread::GetRegisterState(int flavor, bool force) -{ - return m_arch_ap->GetRegisterState(flavor, force) == KERN_SUCCESS; + // Free up the names and types + ::vm_deallocate(my_task, (vm_address_t)names, + ncount * sizeof(mach_port_name_t)); + ::vm_deallocate(my_task, (vm_address_t)types, + tcount * sizeof(mach_port_type_t)); + } + return inferior_tid; } -bool -MachThread::SetRegisterState(int flavor) -{ - return m_arch_ap->SetRegisterState(flavor) == KERN_SUCCESS; -} +bool MachThread::IsUserReady() { + if (m_basic_info.run_state == 0) + GetBasicInfo(); -uint64_t -MachThread::GetPC(uint64_t failValue) -{ - // Get program counter - return m_arch_ap->GetPC(failValue); -} + switch (m_basic_info.run_state) { + default: + case TH_STATE_UNINTERRUPTIBLE: + break; -bool -MachThread::SetPC(uint64_t value) -{ - // Set program counter - return m_arch_ap->SetPC(value); + case TH_STATE_RUNNING: + case TH_STATE_STOPPED: + case TH_STATE_WAITING: + case TH_STATE_HALTED: + return true; + } + return false; } -uint64_t -MachThread::GetSP(uint64_t failValue) -{ - // Get stack pointer - return m_arch_ap->GetSP(failValue); -} - -nub_process_t -MachThread::ProcessID() const -{ - if (m_process) - return m_process->ProcessID(); - return INVALID_NUB_PROCESS; -} - -void -MachThread::Dump(uint32_t index) -{ - const char * thread_run_state = NULL; - - switch (m_basic_info.run_state) - { - case TH_STATE_RUNNING: thread_run_state = "running"; break; // 1 thread is running normally - case TH_STATE_STOPPED: thread_run_state = "stopped"; break; // 2 thread is stopped - case TH_STATE_WAITING: thread_run_state = "waiting"; break; // 3 thread is waiting normally - case TH_STATE_UNINTERRUPTIBLE: thread_run_state = "uninter"; break; // 4 thread is in an uninterruptible wait - case TH_STATE_HALTED: thread_run_state = "halted "; break; // 5 thread is halted at a - default: thread_run_state = "???"; break; - } +struct thread_basic_info *MachThread::GetBasicInfo() { + if (MachThread::GetBasicInfo(m_mach_port_number, &m_basic_info)) + return &m_basic_info; + return NULL; +} - 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); - //DumpRegisterState(0); -} - -void -MachThread::ThreadWillResume(const DNBThreadResumeAction *thread_action, bool others_stopped) -{ - if (thread_action->addr != INVALID_NUB_ADDRESS) - SetPC (thread_action->addr); - - SetState (thread_action->state); - switch (thread_action->state) - { - case eStateStopped: - case eStateSuspended: - assert (others_stopped == false); - Suspend(); - break; - - case eStateRunning: - case eStateStepping: - Resume(others_stopped); - break; - default: - break; - } - m_arch_ap->ThreadWillResume(); - m_stop_exception.Clear(); -} +bool MachThread::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 MachThread::ThreadIDIsValid(uint64_t thread) { return thread != 0; } -DNBBreakpoint * -MachThread::CurrentBreakpoint() -{ - return m_process->Breakpoints().FindByAddress(GetPC()); -} +bool MachThread::MachPortNumberIsValid(thread_t thread) { + return thread != THREAD_NULL; +} -bool -MachThread::ShouldStop(bool &step_more) -{ - // See if this thread is at a breakpoint? - DNBBreakpoint *bp = CurrentBreakpoint(); +bool MachThread::GetRegisterState(int flavor, bool force) { + return m_arch_ap->GetRegisterState(flavor, force) == KERN_SUCCESS; +} + +bool MachThread::SetRegisterState(int flavor) { + return m_arch_ap->SetRegisterState(flavor) == KERN_SUCCESS; +} + +uint64_t MachThread::GetPC(uint64_t failValue) { + // Get program counter + return m_arch_ap->GetPC(failValue); +} + +bool MachThread::SetPC(uint64_t value) { + // Set program counter + return m_arch_ap->SetPC(value); +} + +uint64_t MachThread::GetSP(uint64_t failValue) { + // Get stack pointer + return m_arch_ap->GetSP(failValue); +} + +nub_process_t MachThread::ProcessID() const { + if (m_process) + return m_process->ProcessID(); + return INVALID_NUB_PROCESS; +} + +void MachThread::Dump(uint32_t index) { + const char *thread_run_state = NULL; + + switch (m_basic_info.run_state) { + case TH_STATE_RUNNING: + thread_run_state = "running"; + break; // 1 thread is running normally + case TH_STATE_STOPPED: + thread_run_state = "stopped"; + break; // 2 thread is stopped + case TH_STATE_WAITING: + thread_run_state = "waiting"; + break; // 3 thread is waiting normally + case TH_STATE_UNINTERRUPTIBLE: + thread_run_state = "uninter"; + break; // 4 thread is in an uninterruptible wait + case TH_STATE_HALTED: + thread_run_state = "halted "; + break; // 5 thread is halted at a + default: + thread_run_state = "???"; + break; + } + + 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); + // DumpRegisterState(0); +} + +void MachThread::ThreadWillResume(const DNBThreadResumeAction *thread_action, + bool others_stopped) { + if (thread_action->addr != INVALID_NUB_ADDRESS) + SetPC(thread_action->addr); - if (bp) - { - // This thread is sitting at a breakpoint, ask the breakpoint - // if we should be stopping here. - return true; - } - else - { - if (m_arch_ap->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; + SetState(thread_action->state); + switch (thread_action->state) { + case eStateStopped: + case eStateSuspended: + assert(others_stopped == false); + Suspend(); + break; + + case eStateRunning: + case eStateStepping: + Resume(others_stopped); + break; + default: + break; + } + m_arch_ap->ThreadWillResume(); + m_stop_exception.Clear(); } -bool -MachThread::IsStepping() -{ - return GetState() == eStateStepping; -} - - -bool -MachThread::ThreadDidStop() -{ - // 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_ap->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); +DNBBreakpoint *MachThread::CurrentBreakpoint() { + return m_process->Breakpoints().FindByAddress(GetPC()); +} + +bool MachThread::ShouldStop(bool &step_more) { + // 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; -} - -bool -MachThread::NotifyException(MachException::Data& exc) -{ - // 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_ap->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 { + if (m_arch_ap->StepNotComplete()) { + step_more = true; + return false; } - else - { - m_stop_exception = exc; - } - - return handled; -} - - -nub_state_t -MachThread::GetState() -{ - // If any other threads access this we will need a mutex for it - PTHREAD_MUTEX_LOCKER (locker, m_state_mutex); - return m_state; -} - -void -MachThread::SetState(nub_state_t state) -{ - PTHREAD_MUTEX_LOCKER (locker, m_state_mutex); - m_state = state; - DNBLogThreadedIf(LOG_THREAD, "MachThread::SetState ( %s ) for tid = 0x%8.8" PRIx64 "", DNBStateAsString(state), m_unique_id); -} - -nub_size_t -MachThread::GetNumRegistersInSet(nub_size_t regSet) const -{ - if (regSet < m_num_reg_sets) - return m_reg_sets[regSet].num_registers; - return 0; -} - -const char * -MachThread::GetRegisterSetName(nub_size_t regSet) const -{ - if (regSet < m_num_reg_sets) - return m_reg_sets[regSet].name; - return NULL; -} - -const DNBRegisterInfo * -MachThread::GetRegisterInfo(nub_size_t regSet, nub_size_t regIndex) const -{ - if (regSet < m_num_reg_sets) - if (regIndex < m_reg_sets[regSet].num_registers) - return &m_reg_sets[regSet].registers[regIndex]; - return NULL; -} -void -MachThread::DumpRegisterState(nub_size_t regSet) -{ - if (regSet == REGISTER_SET_ALL) - { - for (regSet = 1; regSet < m_num_reg_sets; regSet++) - DumpRegisterState(regSet); + // 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; } - else - { - if (m_arch_ap->RegisterSetStateIsValid((int)regSet)) - { - const size_t numRegisters = GetNumRegistersInSet(regSet); - uint32_t regIndex = 0; - DNBRegisterValueClass reg; - for (regIndex = 0; regIndex < numRegisters; ++regIndex) - { - if (m_arch_ap->GetRegisterValue((uint32_t)regSet, regIndex, ®)) - { - reg.Dump(NULL, NULL); - } - } - } - else - { - DNBLog("%s: registers are not currently valid.", GetRegisterSetName(regSet)); + } + return false; +} +bool MachThread::IsStepping() { return GetState() == eStateStepping; } + +bool MachThread::ThreadDidStop() { + // 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_ap->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); + return true; +} + +bool MachThread::NotifyException(MachException::Data &exc) { + // 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_ap->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; +} + +nub_state_t MachThread::GetState() { + // If any other threads access this we will need a mutex for it + PTHREAD_MUTEX_LOCKER(locker, m_state_mutex); + return m_state; +} + +void MachThread::SetState(nub_state_t state) { + PTHREAD_MUTEX_LOCKER(locker, m_state_mutex); + m_state = state; + DNBLogThreadedIf(LOG_THREAD, + "MachThread::SetState ( %s ) for tid = 0x%8.8" PRIx64 "", + DNBStateAsString(state), m_unique_id); +} + +nub_size_t MachThread::GetNumRegistersInSet(nub_size_t regSet) const { + if (regSet < m_num_reg_sets) + return m_reg_sets[regSet].num_registers; + return 0; +} + +const char *MachThread::GetRegisterSetName(nub_size_t regSet) const { + if (regSet < m_num_reg_sets) + return m_reg_sets[regSet].name; + return NULL; +} + +const DNBRegisterInfo *MachThread::GetRegisterInfo(nub_size_t regSet, + nub_size_t regIndex) const { + if (regSet < m_num_reg_sets) + if (regIndex < m_reg_sets[regSet].num_registers) + return &m_reg_sets[regSet].registers[regIndex]; + return NULL; +} +void MachThread::DumpRegisterState(nub_size_t regSet) { + if (regSet == REGISTER_SET_ALL) { + for (regSet = 1; regSet < m_num_reg_sets; regSet++) + DumpRegisterState(regSet); + } else { + if (m_arch_ap->RegisterSetStateIsValid((int)regSet)) { + const size_t numRegisters = GetNumRegistersInSet(regSet); + uint32_t regIndex = 0; + DNBRegisterValueClass reg; + for (regIndex = 0; regIndex < numRegisters; ++regIndex) { + if (m_arch_ap->GetRegisterValue((uint32_t)regSet, regIndex, ®)) { + reg.Dump(NULL, NULL); } + } + } else { + DNBLog("%s: registers are not currently valid.", + GetRegisterSetName(regSet)); } + } } const DNBRegisterSetInfo * -MachThread::GetRegisterSetInfo(nub_size_t *num_reg_sets ) const -{ - *num_reg_sets = m_num_reg_sets; - return &m_reg_sets[0]; +MachThread::GetRegisterSetInfo(nub_size_t *num_reg_sets) const { + *num_reg_sets = m_num_reg_sets; + return &m_reg_sets[0]; } -bool -MachThread::GetRegisterValue ( uint32_t set, uint32_t reg, DNBRegisterValue *value ) -{ - return m_arch_ap->GetRegisterValue(set, reg, value); +bool MachThread::GetRegisterValue(uint32_t set, uint32_t reg, + DNBRegisterValue *value) { + return m_arch_ap->GetRegisterValue(set, reg, value); } -bool -MachThread::SetRegisterValue ( uint32_t set, uint32_t reg, const DNBRegisterValue *value ) -{ - return m_arch_ap->SetRegisterValue(set, reg, value); +bool MachThread::SetRegisterValue(uint32_t set, uint32_t reg, + const DNBRegisterValue *value) { + return m_arch_ap->SetRegisterValue(set, reg, value); } -nub_size_t -MachThread::GetRegisterContext (void *buf, nub_size_t buf_len) -{ - return m_arch_ap->GetRegisterContext(buf, buf_len); +nub_size_t MachThread::GetRegisterContext(void *buf, nub_size_t buf_len) { + return m_arch_ap->GetRegisterContext(buf, buf_len); } -nub_size_t -MachThread::SetRegisterContext (const void *buf, nub_size_t buf_len) -{ - return m_arch_ap->SetRegisterContext(buf, buf_len); +nub_size_t MachThread::SetRegisterContext(const void *buf, nub_size_t buf_len) { + return m_arch_ap->SetRegisterContext(buf, buf_len); } -uint32_t -MachThread::SaveRegisterState () -{ - return m_arch_ap->SaveRegisterState(); - +uint32_t MachThread::SaveRegisterState() { + return m_arch_ap->SaveRegisterState(); } -bool -MachThread::RestoreRegisterState (uint32_t save_id) -{ - return m_arch_ap->RestoreRegisterState(save_id); +bool MachThread::RestoreRegisterState(uint32_t save_id) { + return m_arch_ap->RestoreRegisterState(save_id); } -uint32_t -MachThread::EnableHardwareBreakpoint (const DNBBreakpoint *bp) -{ - if (bp != NULL && bp->IsBreakpoint()) - return m_arch_ap->EnableHardwareBreakpoint(bp->Address(), bp->ByteSize()); - return INVALID_NUB_HW_INDEX; +uint32_t MachThread::EnableHardwareBreakpoint(const DNBBreakpoint *bp) { + if (bp != NULL && bp->IsBreakpoint()) + return m_arch_ap->EnableHardwareBreakpoint(bp->Address(), bp->ByteSize()); + return INVALID_NUB_HW_INDEX; } -uint32_t -MachThread::EnableHardwareWatchpoint (const DNBBreakpoint *wp, bool also_set_on_task) -{ - if (wp != NULL && wp->IsWatchpoint()) - return m_arch_ap->EnableHardwareWatchpoint(wp->Address(), wp->ByteSize(), wp->WatchpointRead(), wp->WatchpointWrite(), also_set_on_task); - return INVALID_NUB_HW_INDEX; +uint32_t MachThread::EnableHardwareWatchpoint(const DNBBreakpoint *wp, + bool also_set_on_task) { + if (wp != NULL && wp->IsWatchpoint()) + return m_arch_ap->EnableHardwareWatchpoint( + wp->Address(), wp->ByteSize(), wp->WatchpointRead(), + wp->WatchpointWrite(), also_set_on_task); + return INVALID_NUB_HW_INDEX; } -bool -MachThread::RollbackTransForHWP() -{ - return m_arch_ap->RollbackTransForHWP(); +bool MachThread::RollbackTransForHWP() { + return m_arch_ap->RollbackTransForHWP(); } -bool -MachThread::FinishTransForHWP() -{ - return m_arch_ap->FinishTransForHWP(); -} +bool MachThread::FinishTransForHWP() { return m_arch_ap->FinishTransForHWP(); } -bool -MachThread::DisableHardwareBreakpoint (const DNBBreakpoint *bp) -{ - if (bp != NULL && bp->IsHardware()) - return m_arch_ap->DisableHardwareBreakpoint(bp->GetHardwareIndex()); - return false; +bool MachThread::DisableHardwareBreakpoint(const DNBBreakpoint *bp) { + if (bp != NULL && bp->IsHardware()) + return m_arch_ap->DisableHardwareBreakpoint(bp->GetHardwareIndex()); + return false; } -bool -MachThread::DisableHardwareWatchpoint (const DNBBreakpoint *wp, bool also_set_on_task) -{ - if (wp != NULL && wp->IsHardware()) - return m_arch_ap->DisableHardwareWatchpoint(wp->GetHardwareIndex(), also_set_on_task); - return false; +bool MachThread::DisableHardwareWatchpoint(const DNBBreakpoint *wp, + bool also_set_on_task) { + if (wp != NULL && wp->IsHardware()) + return m_arch_ap->DisableHardwareWatchpoint(wp->GetHardwareIndex(), + also_set_on_task); + return false; } -uint32_t -MachThread::NumSupportedHardwareWatchpoints () const -{ - return m_arch_ap->NumSupportedHardwareWatchpoints(); +uint32_t MachThread::NumSupportedHardwareWatchpoints() const { + return m_arch_ap->NumSupportedHardwareWatchpoints(); } -bool -MachThread::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_port_number, THREAD_IDENTIFIER_INFO, (thread_info_t) &m_ident_info, &count); - return kret == KERN_SUCCESS; +bool MachThread::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_port_number, THREAD_IDENTIFIER_INFO, + (thread_info_t)&m_ident_info, &count); + return kret == KERN_SUCCESS; - return false; + return false; } +const char *MachThread::GetName() { + if (GetIdentifierInfo()) { + int len = ::proc_pidinfo(m_process->ProcessID(), PROC_PIDTHREADINFO, + m_ident_info.thread_handle, &m_proc_threadinfo, + sizeof(m_proc_threadinfo)); -const char * -MachThread::GetName () -{ - if (GetIdentifierInfo ()) - { - int len = ::proc_pidinfo (m_process->ProcessID(), PROC_PIDTHREADINFO, m_ident_info.thread_handle, &m_proc_threadinfo, sizeof (m_proc_threadinfo)); - - if (len && m_proc_threadinfo.pth_name[0]) - return m_proc_threadinfo.pth_name; - } - return NULL; + if (len && m_proc_threadinfo.pth_name[0]) + return m_proc_threadinfo.pth_name; + } + return NULL; } - -uint64_t -MachThread::GetGloballyUniqueThreadIDForMachPortID (thread_t mach_port_id) -{ +uint64_t +MachThread::GetGloballyUniqueThreadIDForMachPortID(thread_t mach_port_id) { + kern_return_t kr; + thread_identifier_info_data_t tident; + mach_msg_type_number_t tident_count = THREAD_IDENTIFIER_INFO_COUNT; + kr = thread_info(mach_port_id, THREAD_IDENTIFIER_INFO, (thread_info_t)&tident, + &tident_count); + if (kr != KERN_SUCCESS) { + return mach_port_id; + } + return tident.thread_id; +} + +nub_addr_t MachThread::GetPThreadT() { + nub_addr_t pthread_t_value = INVALID_NUB_ADDRESS; + if (MachPortNumberIsValid(m_mach_port_number)) { kern_return_t kr; thread_identifier_info_data_t tident; mach_msg_type_number_t tident_count = THREAD_IDENTIFIER_INFO_COUNT; - kr = thread_info (mach_port_id, THREAD_IDENTIFIER_INFO, - (thread_info_t) &tident, &tident_count); - if (kr != KERN_SUCCESS) - { - return mach_port_id; - } - return tident.thread_id; -} - -nub_addr_t -MachThread::GetPThreadT () -{ - nub_addr_t pthread_t_value = INVALID_NUB_ADDRESS; - if (MachPortNumberIsValid (m_mach_port_number)) - { - kern_return_t kr; - thread_identifier_info_data_t tident; - mach_msg_type_number_t tident_count = THREAD_IDENTIFIER_INFO_COUNT; - kr = thread_info (m_mach_port_number, THREAD_IDENTIFIER_INFO, - (thread_info_t) &tident, &tident_count); - if (kr == KERN_SUCCESS) - { - // Dereference thread_handle to get the pthread_t value for this thread. - if (m_is_64_bit) - { - uint64_t addr; - if (m_process->ReadMemory (tident.thread_handle, 8, &addr) == 8) - { - if (addr != 0) - { - pthread_t_value = addr; - } - } - } - else - { - uint32_t addr; - if (m_process->ReadMemory (tident.thread_handle, 4, &addr) == 4) - { - if (addr != 0) - { - pthread_t_value = addr; - } - } - } + kr = thread_info(m_mach_port_number, THREAD_IDENTIFIER_INFO, + (thread_info_t)&tident, &tident_count); + if (kr == KERN_SUCCESS) { + // Dereference thread_handle to get the pthread_t value for this thread. + if (m_is_64_bit) { + uint64_t addr; + if (m_process->ReadMemory(tident.thread_handle, 8, &addr) == 8) { + if (addr != 0) { + pthread_t_value = addr; + } + } + } else { + uint32_t addr; + if (m_process->ReadMemory(tident.thread_handle, 4, &addr) == 4) { + if (addr != 0) { + pthread_t_value = addr; + } } + } } - return pthread_t_value; + } + return pthread_t_value; } // Return this thread's TSD (Thread Specific Data) address. // This is computed based on this thread's pthread_t value. // // We compute the TSD from the pthread_t by one of two methods. -// -// If plo_pthread_tsd_base_offset is non-zero, this is a simple offset that we add to +// +// If plo_pthread_tsd_base_offset is non-zero, this is a simple offset that we +// add to // the pthread_t to get the TSD base address. // -// Else we read a pointer from memory at pthread_t + plo_pthread_tsd_base_address_offset and +// Else we read a pointer from memory at pthread_t + +// plo_pthread_tsd_base_address_offset and // that gives us the TSD address. // -// These plo_pthread_tsd_base values must be read out of libpthread by lldb & provided to debugserver. +// These plo_pthread_tsd_base values must be read out of libpthread by lldb & +// provided to debugserver. nub_addr_t -MachThread::GetTSDAddressForThread (uint64_t plo_pthread_tsd_base_address_offset, uint64_t plo_pthread_tsd_base_offset, uint64_t plo_pthread_tsd_entry_size) -{ - nub_addr_t tsd_addr = INVALID_NUB_ADDRESS; - nub_addr_t pthread_t_value = GetPThreadT(); - if (plo_pthread_tsd_base_offset != 0 && plo_pthread_tsd_base_offset != INVALID_NUB_ADDRESS) - { - tsd_addr = pthread_t_value + plo_pthread_tsd_base_offset; - } - else - { - if (plo_pthread_tsd_entry_size == 4) - { - uint32_t addr = 0; - if (m_process->ReadMemory (pthread_t_value + plo_pthread_tsd_base_address_offset, 4, &addr) == 4) - { - if (addr != 0) - { - tsd_addr = addr; - } - } +MachThread::GetTSDAddressForThread(uint64_t plo_pthread_tsd_base_address_offset, + uint64_t plo_pthread_tsd_base_offset, + uint64_t plo_pthread_tsd_entry_size) { + nub_addr_t tsd_addr = INVALID_NUB_ADDRESS; + nub_addr_t pthread_t_value = GetPThreadT(); + if (plo_pthread_tsd_base_offset != 0 && + plo_pthread_tsd_base_offset != INVALID_NUB_ADDRESS) { + tsd_addr = pthread_t_value + plo_pthread_tsd_base_offset; + } else { + if (plo_pthread_tsd_entry_size == 4) { + uint32_t addr = 0; + if (m_process->ReadMemory(pthread_t_value + + plo_pthread_tsd_base_address_offset, + 4, &addr) == 4) { + if (addr != 0) { + tsd_addr = addr; } - if (plo_pthread_tsd_entry_size == 4) - { - uint64_t addr = 0; - if (m_process->ReadMemory (pthread_t_value + plo_pthread_tsd_base_address_offset, 8, &addr) == 8) - { - if (addr != 0) - { - tsd_addr = addr; - } - } + } + } + if (plo_pthread_tsd_entry_size == 4) { + uint64_t addr = 0; + if (m_process->ReadMemory(pthread_t_value + + plo_pthread_tsd_base_address_offset, + 8, &addr) == 8) { + if (addr != 0) { + tsd_addr = addr; } + } } - return tsd_addr; + } + return tsd_addr; } - -nub_addr_t -MachThread::GetDispatchQueueT () -{ - nub_addr_t dispatch_queue_t_value = INVALID_NUB_ADDRESS; - if (MachPortNumberIsValid (m_mach_port_number)) - { - kern_return_t kr; - thread_identifier_info_data_t tident; - mach_msg_type_number_t tident_count = THREAD_IDENTIFIER_INFO_COUNT; - kr = thread_info (m_mach_port_number, THREAD_IDENTIFIER_INFO, - (thread_info_t) &tident, &tident_count); - if (kr == KERN_SUCCESS && tident.dispatch_qaddr != 0 && tident.dispatch_qaddr != INVALID_NUB_ADDRESS) - { - // Dereference dispatch_qaddr to get the dispatch_queue_t value for this thread's queue, if any. - if (m_is_64_bit) - { - uint64_t addr; - if (m_process->ReadMemory (tident.dispatch_qaddr, 8, &addr) == 8) - { - if (addr != 0) - dispatch_queue_t_value = addr; - } - } - else - { - uint32_t addr; - if (m_process->ReadMemory (tident.dispatch_qaddr, 4, &addr) == 4) - { - if (addr != 0) - dispatch_queue_t_value = addr; - } - } - } - } - return dispatch_queue_t_value; -} - - -ThreadInfo::QoS -MachThread::GetRequestedQoS (nub_addr_t tsd, uint64_t dti_qos_class_index) -{ - ThreadInfo::QoS qos_value; - if (MachPortNumberIsValid (m_mach_port_number) && m_pthread_qos_class_decode != nullptr) - { - uint64_t pthread_priority_value = 0; - if (m_is_64_bit) - { - uint64_t pri; - if (m_process->ReadMemory (tsd + (dti_qos_class_index * 8), 8, &pri) == 8) - { - pthread_priority_value = pri; - } +nub_addr_t MachThread::GetDispatchQueueT() { + nub_addr_t dispatch_queue_t_value = INVALID_NUB_ADDRESS; + if (MachPortNumberIsValid(m_mach_port_number)) { + kern_return_t kr; + thread_identifier_info_data_t tident; + mach_msg_type_number_t tident_count = THREAD_IDENTIFIER_INFO_COUNT; + kr = thread_info(m_mach_port_number, THREAD_IDENTIFIER_INFO, + (thread_info_t)&tident, &tident_count); + if (kr == KERN_SUCCESS && tident.dispatch_qaddr != 0 && + tident.dispatch_qaddr != INVALID_NUB_ADDRESS) { + // Dereference dispatch_qaddr to get the dispatch_queue_t value for this + // thread's queue, if any. + if (m_is_64_bit) { + uint64_t addr; + if (m_process->ReadMemory(tident.dispatch_qaddr, 8, &addr) == 8) { + if (addr != 0) + dispatch_queue_t_value = addr; } - else - { - uint32_t pri; - if (m_process->ReadMemory (tsd + (dti_qos_class_index * 4), 4, &pri) == 4) - { - pthread_priority_value = pri; - } + } else { + uint32_t addr; + if (m_process->ReadMemory(tident.dispatch_qaddr, 4, &addr) == 4) { + if (addr != 0) + dispatch_queue_t_value = addr; } + } + } + } + return dispatch_queue_t_value; +} + +ThreadInfo::QoS MachThread::GetRequestedQoS(nub_addr_t tsd, + uint64_t dti_qos_class_index) { + ThreadInfo::QoS qos_value; + if (MachPortNumberIsValid(m_mach_port_number) && + m_pthread_qos_class_decode != nullptr) { + uint64_t pthread_priority_value = 0; + if (m_is_64_bit) { + uint64_t pri; + if (m_process->ReadMemory(tsd + (dti_qos_class_index * 8), 8, &pri) == + 8) { + pthread_priority_value = pri; + } + } else { + uint32_t pri; + if (m_process->ReadMemory(tsd + (dti_qos_class_index * 4), 4, &pri) == + 4) { + pthread_priority_value = pri; + } + } - uint32_t requested_qos = m_pthread_qos_class_decode (pthread_priority_value, NULL, NULL); - - switch (requested_qos) - { - // These constants from <pthread/qos.h> - case 0x21: - qos_value.enum_value = requested_qos; - qos_value.constant_name = "QOS_CLASS_USER_INTERACTIVE"; - qos_value.printable_name = "User Interactive"; - break; - case 0x19: - qos_value.enum_value = requested_qos; - qos_value.constant_name = "QOS_CLASS_USER_INITIATED"; - qos_value.printable_name = "User Initiated"; - break; - case 0x15: - qos_value.enum_value = requested_qos; - qos_value.constant_name = "QOS_CLASS_DEFAULT"; - qos_value.printable_name = "Default"; - break; - case 0x11: - qos_value.enum_value = requested_qos; - qos_value.constant_name = "QOS_CLASS_UTILITY"; - qos_value.printable_name = "Utility"; - break; - case 0x09: - qos_value.enum_value = requested_qos; - qos_value.constant_name = "QOS_CLASS_BACKGROUND"; - qos_value.printable_name = "Background"; - break; - case 0x00: - qos_value.enum_value = requested_qos; - qos_value.constant_name = "QOS_CLASS_UNSPECIFIED"; - qos_value.printable_name = "Unspecified"; - break; - } + uint32_t requested_qos = + m_pthread_qos_class_decode(pthread_priority_value, NULL, NULL); + + switch (requested_qos) { + // These constants from <pthread/qos.h> + case 0x21: + qos_value.enum_value = requested_qos; + qos_value.constant_name = "QOS_CLASS_USER_INTERACTIVE"; + qos_value.printable_name = "User Interactive"; + break; + case 0x19: + qos_value.enum_value = requested_qos; + qos_value.constant_name = "QOS_CLASS_USER_INITIATED"; + qos_value.printable_name = "User Initiated"; + break; + case 0x15: + qos_value.enum_value = requested_qos; + qos_value.constant_name = "QOS_CLASS_DEFAULT"; + qos_value.printable_name = "Default"; + break; + case 0x11: + qos_value.enum_value = requested_qos; + qos_value.constant_name = "QOS_CLASS_UTILITY"; + qos_value.printable_name = "Utility"; + break; + case 0x09: + qos_value.enum_value = requested_qos; + qos_value.constant_name = "QOS_CLASS_BACKGROUND"; + qos_value.printable_name = "Background"; + break; + case 0x00: + qos_value.enum_value = requested_qos; + qos_value.constant_name = "QOS_CLASS_UNSPECIFIED"; + qos_value.printable_name = "Unspecified"; + break; } - return qos_value; + } + return qos_value; } |
