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kern: improve kdebug attach semantics

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This commit is contained in:
Michael Scire 2021-09-17 18:10:05 -07:00 • committed by SciresM
parent 4c73c461f1
commit 2b91956051
8 changed files with 369 additions and 135 deletions
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37
libraries/libmesosphere/include/mesosphere/kern_k_debug_base.hpp
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@ -25,14 +25,31 @@ namespace ams::kern {
class KDebugBase : public KSynchronizationObject {
protected:
using DebugEventList = util::IntrusiveListBaseTraits<KEventInfo>::ListType;
private:
class ProcessHolder {
private:
friend class KDebugBase;
private:
KProcess *m_process;
std::atomic<u32> m_ref_count;
private:
explicit ProcessHolder() : m_process(nullptr) { /* ... */ }
void Attach(KProcess *process);
void Detach();
bool Open();
void Close();
};
private:
DebugEventList m_event_info_list;
u32 m_continue_flags;
KProcess *m_process;
ProcessHolder m_process_holder;
KLightLock m_lock;
KProcess::State m_old_process_state;
bool m_is_attached;
public:
explicit KDebugBase() { /* ... */ }
explicit KDebugBase() : m_event_info_list(), m_process_holder(), m_lock() { /* ... */ }
protected:
bool Is64Bit() const;
public:
@ -59,7 +76,21 @@ namespace ams::kern {
Result GetDebugEventInfo(ams::svc::lp64::DebugEventInfo *out);
Result GetDebugEventInfo(ams::svc::ilp32::DebugEventInfo *out);
KScopedAutoObject<KProcess> GetProcess();
ALWAYS_INLINE bool IsAttached() const {
return m_is_attached;
}
ALWAYS_INLINE bool OpenProcess() {
return m_process_holder.Open();
}
ALWAYS_INLINE void CloseProcess() {
return m_process_holder.Close();
}
ALWAYS_INLINE KProcess *GetProcessUnsafe() const {
return m_process_holder.m_process;
}
private:
void PushDebugEvent(ams::svc::DebugEvent event, uintptr_t param0 = 0, uintptr_t param1 = 0, uintptr_t param2 = 0, uintptr_t param3 = 0, uintptr_t param4 = 0);
void EnqueueDebugEventInfo(KEventInfo *info);