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0f45c3516d
ppsspp/Core/HLE/sceKernelThread.cpp
Unknown W. Brackets 0f45c3516d Skip setting a0 in the idle thread. 
We don't need the param for our fake syscall.  This is safe since it's all
savestated.
2014-10-12 12:51:48 -07:00

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// Copyright (c) 2012- PPSSPP Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0 or later versions.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official git repository and contact information can be found at
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
#include <set>
#include <map>
#include <queue>
#include <algorithm>
#include "Common/LogManager.h"
#include "Common/CommonTypes.h"
#include "Core/HLE/HLE.h"
#include "Core/HLE/HLETables.h"
#include "Core/MIPS/MIPSInt.h"
#include "Core/MIPS/MIPSCodeUtils.h"
#include "Core/MIPS/MIPS.h"
#include "Core/CoreTiming.h"
#include "Core/MemMap.h"
#include "Core/Reporting.h"
#include "Common/ChunkFile.h"
#include "Core/HLE/sceAudio.h"
#include "Core/HLE/sceKernel.h"
#include "Core/HLE/sceKernelMemory.h"
#include "Core/HLE/sceKernelThread.h"
#include "Core/HLE/sceKernelModule.h"
#include "Core/HLE/sceKernelInterrupt.h"
#include "Core/HLE/KernelWaitHelpers.h"
typedef struct
{
WaitType type;
const char *name;
} WaitTypeNames;
const WaitTypeNames waitTypeNames[] = {
{ WAITTYPE_NONE, "None" },
{ WAITTYPE_SLEEP, "Sleep" },
{ WAITTYPE_DELAY, "Delay" },
{ WAITTYPE_SEMA, "Semaphore" },
{ WAITTYPE_EVENTFLAG, "Event flag", },
{ WAITTYPE_MBX, "MBX" },
{ WAITTYPE_VPL, "VPL" },
{ WAITTYPE_FPL, "FPL" },
{ WAITTYPE_MSGPIPE, "Message pipe" },
{ WAITTYPE_THREADEND, "Thread end" },
{ WAITTYPE_AUDIOCHANNEL, "Audio channel" },
{ WAITTYPE_UMD, "UMD" },
{ WAITTYPE_VBLANK, "VBlank" },
{ WAITTYPE_MUTEX, "Mutex" },
{ WAITTYPE_LWMUTEX, "LwMutex" },
{ WAITTYPE_CTRL, "Control" },
{ WAITTYPE_IO, "IO" },
{ WAITTYPE_GEDRAWSYNC, "GeDrawSync" },
{ WAITTYPE_GELISTSYNC, "GeListSync" },
{ WAITTYPE_MODULE, "Module" },
{ WAITTYPE_HLEDELAY, "HleDelay" },
{ WAITTYPE_TLSPL, "TLS" },
{ WAITTYPE_VMEM, "Volatile Mem" },
{ WAITTYPE_ASYNCIO, "AsyncIO" },
};
const char *getWaitTypeName(WaitType type)
{
int waitTypeNamesAmount = sizeof(waitTypeNames)/sizeof(WaitTypeNames);
for (int i = 0; i < waitTypeNamesAmount; i++)
{
if (waitTypeNames[i].type == type)
{
return waitTypeNames[i].name;
}
}
return "Unknown";
}
enum {
PSP_THREAD_ATTR_KERNEL = 0x00001000,
PSP_THREAD_ATTR_VFPU = 0x00004000,
PSP_THREAD_ATTR_SCRATCH_SRAM = 0x00008000, // Save/restore scratch as part of context???
PSP_THREAD_ATTR_NO_FILLSTACK = 0x00100000, // No filling of 0xff.
PSP_THREAD_ATTR_CLEAR_STACK = 0x00200000, // Clear thread stack when deleted.
PSP_THREAD_ATTR_LOW_STACK = 0x00400000, // Allocate stack from bottom not top.
PSP_THREAD_ATTR_USER = 0x80000000,
PSP_THREAD_ATTR_USBWLAN = 0xa0000000,
PSP_THREAD_ATTR_VSH = 0xc0000000,
// TODO: Support more, not even sure what all of these mean.
PSP_THREAD_ATTR_USER_MASK = 0xf8f060ff,
PSP_THREAD_ATTR_USER_ERASE = 0x78800000,
PSP_THREAD_ATTR_SUPPORTED = (PSP_THREAD_ATTR_KERNEL | PSP_THREAD_ATTR_VFPU | PSP_THREAD_ATTR_NO_FILLSTACK | PSP_THREAD_ATTR_CLEAR_STACK | PSP_THREAD_ATTR_LOW_STACK | PSP_THREAD_ATTR_USER)
};
struct NativeCallback
{
SceUInt_le size;
char name[32];
SceUID_le threadId;
u32_le entrypoint;
u32_le commonArgument;
s32_le notifyCount;
s32_le notifyArg;
};
class Callback : public KernelObject
{
public:
const char *GetName() {return nc.name;}
const char *GetTypeName() {return "CallBack";}
void GetQuickInfo(char *ptr, int size)
{
sprintf(ptr, "thread=%i, argument= %08x",
//hackAddress,
nc.threadId,
nc.commonArgument);
}
~Callback()
{
}
static u32 GetMissingErrorCode() { return SCE_KERNEL_ERROR_UNKNOWN_CBID; }
static int GetStaticIDType() { return SCE_KERNEL_TMID_Callback; }
int GetIDType() const { return SCE_KERNEL_TMID_Callback; }
virtual void DoState(PointerWrap &p)
{
auto s = p.Section("Callback", 1);
if (!s)
return;
p.Do(nc);
p.Do(savedPC);
p.Do(savedRA);
p.Do(savedV0);
p.Do(savedV1);
// No longer used.
u32 legacySavedIdRegister = 0;
p.Do(legacySavedIdRegister);
}
NativeCallback nc;
u32 savedPC;
u32 savedRA;
u32 savedV0;
u32 savedV1;
};
#if COMMON_LITTLE_ENDIAN
typedef WaitType WaitType_le;
#else
typedef swap_struct_t<WaitType, swap_32_t<WaitType> > WaitType_le;
#endif
// Real PSP struct, don't change the fields.
struct SceKernelThreadRunStatus
{
SceSize_le size;
u32_le status;
s32_le currentPriority;
WaitType_le waitType;
SceUID_le waitID;
s32_le wakeupCount;
SceKernelSysClock runForClocks;
s32_le numInterruptPreempts;
s32_le numThreadPreempts;
s32_le numReleases;
};
// Real PSP struct, don't change the fields.
struct NativeThread
{
u32_le nativeSize;
char name[KERNELOBJECT_MAX_NAME_LENGTH+1];
// Threading stuff
u32_le attr;
u32_le status;
u32_le entrypoint;
u32_le initialStack;
u32_le stackSize;
u32_le gpreg;
s32_le initialPriority;
s32_le currentPriority;
WaitType_le waitType;
SceUID_le waitID;
s32_le wakeupCount;
s32_le exitStatus;
SceKernelSysClock runForClocks;
s32_le numInterruptPreempts;
s32_le numThreadPreempts;
s32_le numReleases;
};
struct ThreadWaitInfo {
u32 waitValue;
u32 timeoutPtr;
};
// Owns outstanding MIPS calls and provides a way to get them by ID.
class MipsCallManager {
public:
MipsCallManager() : idGen_(0) {}
u32 add(MipsCall *call) {
u32 id = genId();
calls_.insert(std::pair<int, MipsCall *>(id, call));
return id;
}
MipsCall *get(u32 id) {
auto iter = calls_.find(id);
if (iter == calls_.end())
return NULL;
return iter->second;
}
MipsCall *pop(u32 id) {
MipsCall *temp = calls_[id];
calls_.erase(id);
return temp;
}
void clear() {
for (auto it = calls_.begin(), end = calls_.end(); it != end; ++it) {
delete it->second;
}
calls_.clear();
idGen_ = 0;
}
int registerActionType(ActionCreator creator) {
types_.push_back(creator);
return (int) types_.size() - 1;
}
void restoreActionType(int actionType, ActionCreator creator) {
if (actionType >= (int) types_.size())
types_.resize(actionType + 1, NULL);
types_[actionType] = creator;
}
Action *createActionByType(int actionType) {
if (actionType < (int) types_.size() && types_[actionType] != NULL) {
Action *a = types_[actionType]();
a->actionTypeID = actionType;
return a;
}
return NULL;
}
void DoState(PointerWrap &p) {
auto s = p.Section("MipsCallManager", 1);
if (!s)
return;
p.Do(calls_);
p.Do(idGen_);
}
private:
u32 genId() { return ++idGen_; }
std::map<u32, MipsCall *> calls_;
std::vector<ActionCreator> types_;
u32 idGen_;
};
class ActionAfterMipsCall : public Action
{
ActionAfterMipsCall()
{
chainedAction = NULL;
}
public:
virtual void run(MipsCall &call);
static Action *Create()
{
return new ActionAfterMipsCall();
}
virtual void DoState(PointerWrap &p)
{
auto s = p.Section("ActionAfterMipsCall", 1);
if (!s)
return;
p.Do(threadID);
p.Do(status);
p.Do(waitType);
p.Do(waitID);
p.Do(waitInfo);
p.Do(isProcessingCallbacks);
p.Do(currentCallbackId);
int chainedActionType = 0;
if (chainedAction != NULL)
chainedActionType = chainedAction->actionTypeID;
p.Do(chainedActionType);
if (chainedActionType != 0)
{
if (p.mode == p.MODE_READ)
chainedAction = __KernelCreateAction(chainedActionType);
chainedAction->DoState(p);
}
}
SceUID threadID;
// Saved thread state
int status;
WaitType waitType;
int waitID;
ThreadWaitInfo waitInfo;
bool isProcessingCallbacks;
SceUID currentCallbackId;
Action *chainedAction;
};
class ActionAfterCallback : public Action
{
public:
ActionAfterCallback() {}
virtual void run(MipsCall &call);
static Action *Create()
{
return new ActionAfterCallback;
}
void setCallback(SceUID cbId_)
{
cbId = cbId_;
}
void DoState(PointerWrap &p)
{
auto s = p.Section("ActionAfterCallback", 1);
if (!s)
return;
p.Do(cbId);
}
SceUID cbId;
};
class Thread : public KernelObject
{
public:
const char *GetName() {return nt.name;}
const char *GetTypeName() {return "Thread";}
void GetQuickInfo(char *ptr, int size)
{
sprintf(ptr, "pc= %08x sp= %08x %s %s %s %s %s %s (wt=%i wid=%i wv= %08x )",
context.pc, context.r[MIPS_REG_SP],
(nt.status & THREADSTATUS_RUNNING) ? "RUN" : "",
(nt.status & THREADSTATUS_READY) ? "READY" : "",
(nt.status & THREADSTATUS_WAIT) ? "WAIT" : "",
(nt.status & THREADSTATUS_SUSPEND) ? "SUSPEND" : "",
(nt.status & THREADSTATUS_DORMANT) ? "DORMANT" : "",
(nt.status & THREADSTATUS_DEAD) ? "DEAD" : "",
nt.waitType,
nt.waitID,
waitInfo.waitValue);
}
static u32 GetMissingErrorCode() { return SCE_KERNEL_ERROR_UNKNOWN_THID; }
static int GetStaticIDType() { return SCE_KERNEL_TMID_Thread; }
int GetIDType() const { return SCE_KERNEL_TMID_Thread; }
bool AllocateStack(u32 &stackSize)
{
FreeStack();
bool fromTop = (nt.attr & PSP_THREAD_ATTR_LOW_STACK) == 0;
if (nt.attr & PSP_THREAD_ATTR_KERNEL)
{
// Allocate stacks for kernel threads (idle) in kernel RAM
currentStack.start = kernelMemory.Alloc(stackSize, fromTop, (std::string("stack/") + nt.name).c_str());
}
else
{
currentStack.start = userMemory.Alloc(stackSize, fromTop, (std::string("stack/") + nt.name).c_str());
}
if (currentStack.start == (u32)-1)
{
currentStack.start = 0;
nt.initialStack = 0;
ERROR_LOG(SCEKERNEL, "Failed to allocate stack for thread");
return false;
}
nt.initialStack = currentStack.start;
nt.stackSize = stackSize;
return true;
}
bool FillStack() {
// Fill the stack.
if ((nt.attr & PSP_THREAD_ATTR_NO_FILLSTACK) == 0) {
Memory::Memset(currentStack.start, 0xFF, nt.stackSize);
}
context.r[MIPS_REG_SP] = currentStack.start + nt.stackSize;
currentStack.end = context.r[MIPS_REG_SP];
// The k0 section is 256 bytes at the top of the stack.
context.r[MIPS_REG_SP] -= 256;
context.r[MIPS_REG_K0] = context.r[MIPS_REG_SP];
u32 k0 = context.r[MIPS_REG_K0];
Memory::Memset(k0, 0, 0x100);
Memory::Write_U32(GetUID(), k0 + 0xc0);
Memory::Write_U32(nt.initialStack, k0 + 0xc8);
Memory::Write_U32(0xffffffff, k0 + 0xf8);
Memory::Write_U32(0xffffffff, k0 + 0xfc);
// After k0 comes the arguments, which is done by sceKernelStartThread().
Memory::Write_U32(GetUID(), nt.initialStack);
return true;
}
void FreeStack() {
if (currentStack.start != 0) {
DEBUG_LOG(SCEKERNEL, "Freeing thread stack %s", nt.name);
if ((nt.attr & PSP_THREAD_ATTR_CLEAR_STACK) != 0 && nt.initialStack != 0) {
Memory::Memset(nt.initialStack, 0, nt.stackSize);
}
if (nt.attr & PSP_THREAD_ATTR_KERNEL) {
kernelMemory.Free(currentStack.start);
} else {
userMemory.Free(currentStack.start);
}
currentStack.start = 0;
}
}
bool PushExtendedStack(u32 size)
{
u32 stack = userMemory.Alloc(size, true, (std::string("extended/") + nt.name).c_str());
if (stack == (u32)-1)
return false;
pushedStacks.push_back(currentStack);
currentStack.start = stack;
currentStack.end = stack + size;
nt.initialStack = currentStack.start;
nt.stackSize = currentStack.end - currentStack.start;
// We still drop the threadID at the bottom and fill it, but there's no k0.
Memory::Memset(currentStack.start, 0xFF, nt.stackSize);
Memory::Write_U32(GetUID(), nt.initialStack);
return true;
}
bool PopExtendedStack()
{
if (pushedStacks.size() == 0)
return false;
userMemory.Free(currentStack.start);
currentStack = pushedStacks.back();
pushedStacks.pop_back();
nt.initialStack = currentStack.start;
nt.stackSize = currentStack.end - currentStack.start;
return true;
}
Thread()
{
currentStack.start = 0;
}
// Can't use a destructor since savestates will call that too.
void Cleanup()
{
// Callbacks are automatically deleted when their owning thread is deleted.
for (auto it = callbacks.begin(), end = callbacks.end(); it != end; ++it)
kernelObjects.Destroy<Callback>(*it);
if (pushedStacks.size() != 0)
{
WARN_LOG_REPORT(SCEKERNEL, "Thread ended within an extended stack");
for (size_t i = 0; i < pushedStacks.size(); ++i)
userMemory.Free(pushedStacks[i].start);
}
FreeStack();
}
void setReturnValue(u32 retval);
void setReturnValue(u64 retval);
void resumeFromWait();
bool isWaitingFor(WaitType type, int id) const;
int getWaitID(WaitType type) const;
ThreadWaitInfo getWaitInfo() const;
// Utils
inline bool isRunning() const { return (nt.status & THREADSTATUS_RUNNING) != 0; }
inline bool isStopped() const { return (nt.status & THREADSTATUS_DORMANT) != 0; }
inline bool isReady() const { return (nt.status & THREADSTATUS_READY) != 0; }
inline bool isWaiting() const { return (nt.status & THREADSTATUS_WAIT) != 0; }
inline bool isSuspended() const { return (nt.status & THREADSTATUS_SUSPEND) != 0; }
virtual void DoState(PointerWrap &p)
{
auto s = p.Section("Thread", 1, 4);
if (!s)
return;
p.Do(nt);
p.Do(waitInfo);
p.Do(moduleId);
p.Do(isProcessingCallbacks);
p.Do(currentMipscallId);
p.Do(currentCallbackId);
// TODO: How do I "version" adding a DoState method to ThreadContext?
p.Do(context);
if (s <= 3)
{
// We must have been loading an old state if we're here.
// Reorder VFPU data to new order.
float temp[128];
memcpy(temp, context.v, 128 * sizeof(float));
for (int i = 0; i < 128; i++) {
context.v[voffset[i]] = temp[i];
}
}
if (s <= 2)
{
context.other[4] = context.other[5];
context.other[3] = context.other[4];
}
p.Do(callbacks);
p.Do(pendingMipsCalls);
p.Do(pushedStacks);
p.Do(currentStack);
if (s >= 2)
{
p.Do(waitingThreads);
p.Do(pausedWaits);
}
}
NativeThread nt;
ThreadWaitInfo waitInfo;
SceUID moduleId;
bool isProcessingCallbacks;
u32 currentMipscallId;
SceUID currentCallbackId;
ThreadContext context;
std::vector<SceUID> callbacks;
std::list<u32> pendingMipsCalls;
struct StackInfo {
u32 start;
u32 end;
};
// This is a stack of... stacks, since sceKernelExtendThreadStack() can recurse.
// These are stacks that aren't "active" right now, but will pop off once the func returns.
std::vector<StackInfo> pushedStacks;
StackInfo currentStack;
// For thread end.
std::vector<SceUID> waitingThreads;
// Key is the callback id it was for, or if no callback, the thread id.
std::map<SceUID, u64> pausedWaits;
};
struct ThreadQueueList
{
// Number of queues (number of priority levels starting at 0.)
static const int NUM_QUEUES = 128;
// Initial number of threads a single queue can handle.
static const int INITIAL_CAPACITY = 32;
struct Queue
{
// Next ever-been-used queue (worse priority.)
Queue *next;
// First valid item in data.
int first;
// One after last valid item in data.
int end;
// A too-large array with room on the front and end.
SceUID *data;
// Size of data array.
int capacity;
};
ThreadQueueList()
{
memset(queues, 0, sizeof(queues));
first = invalid();
}
~ThreadQueueList()
{
for (int i = 0; i < NUM_QUEUES; ++i)
{
if (queues[i].data != NULL)
free(queues[i].data);
}
}
// Only for debugging, returns priority level.
int contains(const SceUID uid)
{
for (int i = 0; i < NUM_QUEUES; ++i)
{
if (queues[i].data == NULL)
continue;
Queue *cur = &queues[i];
for (int j = cur->first; j < cur->end; ++j)
{
if (cur->data[j] == uid)
return i;
}
}
return -1;
}
inline SceUID pop_first()
{
Queue *cur = first;
while (cur != invalid())
{
if (cur->end - cur->first > 0)
return cur->data[cur->first++];
cur = cur->next;
}
_dbg_assert_msg_(SCEKERNEL, false, "ThreadQueueList should not be empty.");
return 0;
}
inline SceUID pop_first_better(u32 priority)
{
Queue *cur = first;
Queue *stop = &queues[priority];
while (cur < stop)
{
if (cur->end - cur->first > 0)
return cur->data[cur->first++];
cur = cur->next;
}
return 0;
}
inline void push_front(u32 priority, const SceUID threadID)
{
Queue *cur = &queues[priority];
cur->data[--cur->first] = threadID;
if (cur->first == 0)
rebalance(priority);
}
inline void push_back(u32 priority, const SceUID threadID)
{
Queue *cur = &queues[priority];
cur->data[cur->end++] = threadID;
if (cur->end == cur->capacity)
rebalance(priority);
}
inline void remove(u32 priority, const SceUID threadID)
{
Queue *cur = &queues[priority];
_dbg_assert_msg_(SCEKERNEL, cur->next != NULL, "ThreadQueueList::Queue should already be linked up.");
for (int i = cur->first; i < cur->end; ++i)
{
if (cur->data[i] == threadID)
{
int remaining = --cur->end - i;
if (remaining > 0)
memmove(&cur->data[i], &cur->data[i + 1], remaining * sizeof(SceUID));
return;
}
}
// Wasn't there.
}
inline void rotate(u32 priority)
{
Queue *cur = &queues[priority];
_dbg_assert_msg_(SCEKERNEL, cur->next != NULL, "ThreadQueueList::Queue should already be linked up.");
if (cur->end - cur->first > 1)
{
cur->data[cur->end++] = cur->data[cur->first++];
if (cur->end == cur->capacity)
rebalance(priority);
}
}
inline void clear()
{
for (int i = 0; i < NUM_QUEUES; ++i)
{
if (queues[i].data != NULL)
free(queues[i].data);
}
memset(queues, 0, sizeof(queues));
first = invalid();
}
inline bool empty(u32 priority) const
{
const Queue *cur = &queues[priority];
return cur->first == cur->end;
}
inline void prepare(u32 priority)
{
Queue *cur = &queues[priority];
if (cur->next == NULL)
link(priority, INITIAL_CAPACITY);
}
void DoState(PointerWrap &p)
{
auto s = p.Section("ThreadQueueList", 1);
if (!s)
return;
int numQueues = NUM_QUEUES;
p.Do(numQueues);
if (numQueues != NUM_QUEUES)
{
p.SetError(p.ERROR_FAILURE);
ERROR_LOG(SCEKERNEL, "Savestate loading error: invalid data");
return;
}
if (p.mode == p.MODE_READ)
clear();
for (int i = 0; i < NUM_QUEUES; ++i)
{
Queue *cur = &queues[i];
int size = cur->end - cur->first;
p.Do(size);
int capacity = cur->capacity;
p.Do(capacity);
if (capacity == 0)
continue;
if (p.mode == p.MODE_READ)
{
link(i, capacity);
cur->first = (cur->capacity - size) / 2;
cur->end = cur->first + size;
}
if (size != 0)
p.DoArray(&cur->data[cur->first], size);
}
}
private:
Queue *invalid() const
{
return (Queue *) -1;
}
void link(u32 priority, int size)
{
_dbg_assert_msg_(SCEKERNEL, queues[priority].data == NULL, "ThreadQueueList::Queue should only be initialized once.");
if (size <= INITIAL_CAPACITY)
size = INITIAL_CAPACITY;
else
{
int goal = size;
size = INITIAL_CAPACITY;
while (size < goal)
size *= 2;
}
Queue *cur = &queues[priority];
cur->data = (SceUID *) malloc(sizeof(SceUID) * size);
cur->capacity = size;
cur->first = size / 2;
cur->end = size / 2;
for (int i = (int) priority - 1; i >= 0; --i)
{
if (queues[i].next != NULL)
{
cur->next = queues[i].next;
queues[i].next = cur;
return;
}
}
cur->next = first;
first = cur;
}
void rebalance(u32 priority)
{
Queue *cur = &queues[priority];
int size = cur->end - cur->first;
if (size >= cur->capacity - 2)
{
SceUID *new_data = (SceUID *)realloc(cur->data, cur->capacity * 2 * sizeof(SceUID));
if (new_data != NULL)
{
cur->capacity *= 2;
cur->data = new_data;
}
}
int newFirst = (cur->capacity - size) / 2;
if (newFirst != cur->first)
{
memmove(&cur->data[newFirst], &cur->data[cur->first], size * sizeof(SceUID));
cur->first = newFirst;
cur->end = newFirst + size;
}
}
// The first queue that's ever been used.
Queue *first;
// The priority level queues of thread ids.
Queue queues[NUM_QUEUES];
};
struct WaitTypeFuncs
{
WaitBeginCallbackFunc beginFunc;
WaitEndCallbackFunc endFunc;
};
void __KernelExecuteMipsCallOnCurrentThread(u32 callId, bool reschedAfter);
Thread *__KernelCreateThread(SceUID &id, SceUID moduleID, const char *name, u32 entryPoint, u32 priority, int stacksize, u32 attr);
void __KernelResetThread(Thread *t, int lowestPriority);
void __KernelCancelWakeup(SceUID threadID);
void __KernelCancelThreadEndTimeout(SceUID threadID);
bool __KernelCheckThreadCallbacks(Thread *thread, bool force);
//////////////////////////////////////////////////////////////////////////
//STATE BEGIN
//////////////////////////////////////////////////////////////////////////
int g_inCbCount = 0;
// Normally, the same as currentThread. In an interrupt, remembers the callback's thread id.
SceUID currentCallbackThreadID = 0;
int readyCallbacksCount = 0;
SceUID currentThread;
Thread *currentThreadPtr;
u32 idleThreadHackAddr;
u32 threadReturnHackAddr;
u32 cbReturnHackAddr;
u32 intReturnHackAddr;
u32 extendReturnHackAddr;
u32 moduleReturnHackAddr;
std::vector<ThreadCallback> threadEndListeners;
// Lists all thread ids that aren't deleted/etc.
std::vector<SceUID> threadqueue;
// Lists only ready thread ids.
ThreadQueueList threadReadyQueue;
SceUID threadIdleID[2];
int eventScheduledWakeup;
int eventThreadEndTimeout;
bool dispatchEnabled = true;
MipsCallManager mipsCalls;
int actionAfterCallback;
int actionAfterMipsCall;
// When inside a callback, delays are "paused", and rechecked after the callback returns.
std::map<SceUID, u64> pausedDelays;
// Doesn't need state saving.
WaitTypeFuncs waitTypeFuncs[NUM_WAITTYPES];
// Doesn't really need state saving, just for logging purposes.
static u64 lastSwitchCycles = 0;
//////////////////////////////////////////////////////////////////////////
//STATE END
//////////////////////////////////////////////////////////////////////////
int __KernelRegisterActionType(ActionCreator creator)
{
return mipsCalls.registerActionType(creator);
}
void __KernelRestoreActionType(int actionType, ActionCreator creator)
{
mipsCalls.restoreActionType(actionType, creator);
}
Action *__KernelCreateAction(int actionType)
{
return mipsCalls.createActionByType(actionType);
}
void MipsCall::DoState(PointerWrap &p)
{
auto s = p.Section("MipsCall", 1);
if (!s)
return;
p.Do(entryPoint);
p.Do(cbId);
p.DoArray(args, ARRAY_SIZE(args));
p.Do(numArgs);
// No longer used.
u32 legacySavedIdRegister = 0;
p.Do(legacySavedIdRegister);
p.Do(savedRa);
p.Do(savedPc);
p.Do(savedV0);
p.Do(savedV1);
p.Do(tag);
p.Do(savedId);
p.Do(reschedAfter);
int actionTypeID = 0;
if (doAfter != NULL)
actionTypeID = doAfter->actionTypeID;
p.Do(actionTypeID);
if (actionTypeID != 0)
{
if (p.mode == p.MODE_READ)
doAfter = __KernelCreateAction(actionTypeID);
doAfter->DoState(p);
}
}
void MipsCall::setReturnValue(u32 value)
{
savedV0 = value;
}
void MipsCall::setReturnValue(u64 value)
{
savedV0 = value & 0xFFFFFFFF;
savedV1 = (value >> 32) & 0xFFFFFFFF;
}
inline Thread *__GetCurrentThread() {
return currentThreadPtr;
}
inline void __SetCurrentThread(Thread *thread, SceUID threadID, const char *name) {
currentThread = threadID;
currentThreadPtr = thread;
hleCurrentThreadName = name;
}
u32 __KernelMipsCallReturnAddress() {
return cbReturnHackAddr;
}
u32 __KernelInterruptReturnAddress() {
return intReturnHackAddr;
}
void __KernelDelayBeginCallback(SceUID threadID, SceUID prevCallbackId) {
SceUID pauseKey = prevCallbackId == 0 ? threadID : prevCallbackId;
u32 error;
SceUID waitID = __KernelGetWaitID(threadID, WAITTYPE_DELAY, error);
if (waitID == threadID) {
// Most waits need to keep track of waiting threads, delays don't. Use a fake list.
std::vector<SceUID> dummy;
HLEKernel::WaitBeginCallback(threadID, prevCallbackId, eventScheduledWakeup, dummy, pausedDelays, true);
DEBUG_LOG(SCEKERNEL, "sceKernelDelayThreadCB: Suspending delay for callback");
}
else
WARN_LOG_REPORT(SCEKERNEL, "sceKernelDelayThreadCB: beginning callback with bad wait?");
}
void __KernelDelayEndCallback(SceUID threadID, SceUID prevCallbackId) {
SceUID pauseKey = prevCallbackId == 0 ? threadID : prevCallbackId;
if (pausedDelays.find(pauseKey) == pausedDelays.end())
{
// This probably should not happen.
WARN_LOG_REPORT(SCEKERNEL, "sceKernelDelayThreadCB: cannot find delay deadline");
__KernelResumeThreadFromWait(threadID, 0);
return;
}
u64 delayDeadline = pausedDelays[pauseKey];
pausedDelays.erase(pauseKey);
// TODO: Don't wake up if __KernelCurHasReadyCallbacks()?
s64 cyclesLeft = delayDeadline - CoreTiming::GetTicks();
if (cyclesLeft < 0)
__KernelResumeThreadFromWait(threadID, 0);
else
{
CoreTiming::ScheduleEvent(cyclesLeft, eventScheduledWakeup, __KernelGetCurThread());
DEBUG_LOG(SCEKERNEL, "sceKernelDelayThreadCB: Resuming delay after callback");
}
}
void __KernelSleepBeginCallback(SceUID threadID, SceUID prevCallbackId) {
DEBUG_LOG(SCEKERNEL, "sceKernelSleepThreadCB: Suspending sleep for callback");
}
void __KernelSleepEndCallback(SceUID threadID, SceUID prevCallbackId) {
u32 error;
Thread *thread = kernelObjects.Get<Thread>(threadID, error);
if (!thread)
{
// This probably should not happen.
WARN_LOG_REPORT(SCEKERNEL, "sceKernelSleepThreadCB: thread deleted?");
return;
}
// TODO: Don't wake up if __KernelCurHasReadyCallbacks()?
if (thread->nt.wakeupCount > 0) {
thread->nt.wakeupCount--;
DEBUG_LOG(SCEKERNEL, "sceKernelSleepThreadCB: resume from callback, wakeupCount decremented to %i", thread->nt.wakeupCount);
__KernelResumeThreadFromWait(threadID, 0);
} else {
DEBUG_LOG(SCEKERNEL, "sceKernelSleepThreadCB: Resuming sleep after callback");
}
}
void __KernelThreadEndBeginCallback(SceUID threadID, SceUID prevCallbackId)
{
auto result = HLEKernel::WaitBeginCallback<Thread, WAITTYPE_THREADEND, SceUID>(threadID, prevCallbackId, eventThreadEndTimeout);
if (result == HLEKernel::WAIT_CB_SUCCESS)
DEBUG_LOG(SCEKERNEL, "sceKernelWaitThreadEndCB: Suspending wait for callback");
else if (result == HLEKernel::WAIT_CB_BAD_WAIT_DATA)
ERROR_LOG_REPORT(SCEKERNEL, "sceKernelWaitThreadEndCB: wait not found to pause for callback");
else
WARN_LOG_REPORT(SCEKERNEL, "sceKernelWaitThreadEndCB: beginning callback with bad wait id?");
}
bool __KernelCheckResumeThreadEnd(Thread *t, SceUID waitingThreadID, u32 &error, int result, bool &wokeThreads)
{
if (!HLEKernel::VerifyWait(waitingThreadID, WAITTYPE_THREADEND, t->GetUID()))
return true;
if (t->nt.status == THREADSTATUS_DORMANT)
{
u32 timeoutPtr = __KernelGetWaitTimeoutPtr(waitingThreadID, error);
s64 cyclesLeft = CoreTiming::UnscheduleEvent(eventThreadEndTimeout, waitingThreadID);
if (timeoutPtr != 0)
Memory::Write_U32((u32) cyclesToUs(cyclesLeft), timeoutPtr);
s32 exitStatus = t->nt.exitStatus;
__KernelResumeThreadFromWait(waitingThreadID, exitStatus);
return true;
}
return false;
}
void __KernelThreadEndEndCallback(SceUID threadID, SceUID prevCallbackId)
{
auto result = HLEKernel::WaitEndCallback<Thread, WAITTYPE_THREADEND, SceUID>(threadID, prevCallbackId, eventThreadEndTimeout, __KernelCheckResumeThreadEnd);
if (result == HLEKernel::WAIT_CB_RESUMED_WAIT)
DEBUG_LOG(SCEKERNEL, "sceKernelWaitThreadEndCB: Resuming wait from callback");
}
u32 __KernelSetThreadRA(SceUID threadID, u32 nid)
{
u32 newRA;
switch (nid)
{
case NID_MODULERETURN:
newRA = moduleReturnHackAddr;
break;
default:
ERROR_LOG_REPORT(SCEKERNEL, "__KernelSetThreadRA(): invalid RA address");
return -1;
}
if (threadID == currentThread)
currentMIPS->r[MIPS_REG_RA] = newRA;
else
{
u32 error;
Thread *thread = kernelObjects.Get<Thread>(threadID, error);
if (!thread)
return error;
thread->context.r[MIPS_REG_RA] = newRA;
}
return 0;
}
void hleScheduledWakeup(u64 userdata, int cyclesLate);
void hleThreadEndTimeout(u64 userdata, int cyclesLate);
void __KernelWriteFakeSysCall(u32 nid, u32 *ptr, u32 &pos)
{
*ptr = pos;
pos += 8;
WriteSyscall("FakeSysCalls", nid, *ptr);
}
void __KernelThreadingInit()
{
struct ThreadHack
{
u32 nid;
u32 *addr;
};
// Yeah, this is straight out of JPCSP, I should be ashamed.
const static u32_le idleThreadCode[] = {
MIPS_MAKE_LUI(MIPS_REG_RA, 0x0800),
MIPS_MAKE_JR_RA(),
MIPS_MAKE_SYSCALL("FakeSysCalls", "_sceKernelIdle"),
MIPS_MAKE_BREAK(0),
};
// If you add another func here, don't forget __KernelThreadingDoState() below.
static ThreadHack threadHacks[] = {
{NID_THREADRETURN, &threadReturnHackAddr},
{NID_CALLBACKRETURN, &cbReturnHackAddr},
{NID_INTERRUPTRETURN, &intReturnHackAddr},
{NID_EXTENDRETURN, &extendReturnHackAddr},
{NID_MODULERETURN, &moduleReturnHackAddr},
};
u32 blockSize = sizeof(idleThreadCode) + ARRAY_SIZE(threadHacks) * 2 * 4; // The thread code above plus 8 bytes per "hack"
dispatchEnabled = true;
memset(waitTypeFuncs, 0, sizeof(waitTypeFuncs));
__SetCurrentThread(NULL, 0, NULL);
g_inCbCount = 0;
currentCallbackThreadID = 0;
readyCallbacksCount = 0;
lastSwitchCycles = 0;
idleThreadHackAddr = kernelMemory.Alloc(blockSize, false, "threadrethack");
Memory::Memcpy(idleThreadHackAddr, idleThreadCode, sizeof(idleThreadCode));
u32 pos = idleThreadHackAddr + sizeof(idleThreadCode);
for (size_t i = 0; i < ARRAY_SIZE(threadHacks); ++i) {
__KernelWriteFakeSysCall(threadHacks[i].nid, threadHacks[i].addr, pos);
}
eventScheduledWakeup = CoreTiming::RegisterEvent("ScheduledWakeup", &hleScheduledWakeup);
eventThreadEndTimeout = CoreTiming::RegisterEvent("ThreadEndTimeout", &hleThreadEndTimeout);
actionAfterMipsCall = __KernelRegisterActionType(ActionAfterMipsCall::Create);
actionAfterCallback = __KernelRegisterActionType(ActionAfterCallback::Create);
// Create the two idle threads, as well. With the absolute minimal possible priority.
// 4096 stack size - don't know what the right value is. Hm, if callbacks are ever to run on these threads...
__KernelResetThread(__KernelCreateThread(threadIdleID[0], 0, "idle0", idleThreadHackAddr, 0x7f, 4096, PSP_THREAD_ATTR_KERNEL), 0);
__KernelResetThread(__KernelCreateThread(threadIdleID[1], 0, "idle1", idleThreadHackAddr, 0x7f, 4096, PSP_THREAD_ATTR_KERNEL), 0);
// These idle threads are later started in LoadExec, which calls __KernelStartIdleThreads below.
__KernelListenThreadEnd(__KernelCancelWakeup);
__KernelListenThreadEnd(__KernelCancelThreadEndTimeout);
__KernelRegisterWaitTypeFuncs(WAITTYPE_DELAY, __KernelDelayBeginCallback, __KernelDelayEndCallback);
__KernelRegisterWaitTypeFuncs(WAITTYPE_SLEEP, __KernelSleepBeginCallback, __KernelSleepEndCallback);
__KernelRegisterWaitTypeFuncs(WAITTYPE_THREADEND, __KernelThreadEndBeginCallback, __KernelThreadEndEndCallback);
}
void __KernelThreadingDoState(PointerWrap &p)
{
auto s = p.Section("sceKernelThread", 1);
if (!s)
return;
p.Do(g_inCbCount);
p.Do(currentCallbackThreadID);
p.Do(readyCallbacksCount);
p.Do(idleThreadHackAddr);
p.Do(threadReturnHackAddr);
p.Do(cbReturnHackAddr);
p.Do(intReturnHackAddr);
p.Do(extendReturnHackAddr);
p.Do(moduleReturnHackAddr);
p.Do(currentThread);
SceUID dv = 0;
p.Do(threadqueue, dv);
p.DoArray(threadIdleID, ARRAY_SIZE(threadIdleID));
p.Do(dispatchEnabled);
p.Do(threadReadyQueue);
p.Do(eventScheduledWakeup);
CoreTiming::RestoreRegisterEvent(eventScheduledWakeup, "ScheduledWakeup", &hleScheduledWakeup);
p.Do(eventThreadEndTimeout);
CoreTiming::RestoreRegisterEvent(eventThreadEndTimeout, "ThreadEndTimeout", &hleThreadEndTimeout);
p.Do(actionAfterMipsCall);
__KernelRestoreActionType(actionAfterMipsCall, ActionAfterMipsCall::Create);
p.Do(actionAfterCallback);
__KernelRestoreActionType(actionAfterCallback, ActionAfterCallback::Create);
p.Do(pausedDelays);
__SetCurrentThread(kernelObjects.GetFast<Thread>(currentThread), currentThread, __KernelGetThreadName(currentThread));
lastSwitchCycles = CoreTiming::GetTicks();
}
void __KernelThreadingDoStateLate(PointerWrap &p)
{
// We do this late to give modules time to register actions.
mipsCalls.DoState(p);
p.DoMarker("sceKernelThread Late");
}
KernelObject *__KernelThreadObject()
{
return new Thread;
}
KernelObject *__KernelCallbackObject()
{
return new Callback;
}
void __KernelListenThreadEnd(ThreadCallback callback)
{
threadEndListeners.push_back(callback);
}
void __KernelFireThreadEnd(SceUID threadID)
{
for (auto iter = threadEndListeners.begin(), end = threadEndListeners.end(); iter != end; ++iter)
{
ThreadCallback cb = *iter;
cb(threadID);
}
}
// TODO: Use __KernelChangeThreadState instead? It has other affects...
void __KernelChangeReadyState(Thread *thread, SceUID threadID, bool ready)
{
// Passing the id as a parameter is just an optimization, if it's wrong it will cause havoc.
_dbg_assert_msg_(SCEKERNEL, thread->GetUID() == threadID, "Incorrect threadID");
int prio = thread->nt.currentPriority;
if (thread->isReady())
{
if (!ready)
threadReadyQueue.remove(prio, threadID);
}
else if (ready)
{
if (thread->isRunning())
threadReadyQueue.push_front(prio, threadID);
else
threadReadyQueue.push_back(prio, threadID);
thread->nt.status = THREADSTATUS_READY;
}
}
void __KernelChangeReadyState(SceUID threadID, bool ready)
{
u32 error;
Thread *thread = kernelObjects.Get<Thread>(threadID, error);
if (thread)
__KernelChangeReadyState(thread, threadID, ready);
else
WARN_LOG(SCEKERNEL, "Trying to change the ready state of an unknown thread?");
}
void __KernelStartIdleThreads(SceUID moduleId)
{
for (int i = 0; i < 2; i++)
{
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadIdleID[i], error);
t->nt.gpreg = __KernelGetModuleGP(moduleId);
t->context.r[MIPS_REG_GP] = t->nt.gpreg;
//t->context.pc += 4; // ADJUSTPC
threadReadyQueue.prepare(t->nt.currentPriority);
__KernelChangeReadyState(t, threadIdleID[i], true);
}
}
bool __KernelSwitchOffThread(const char *reason)
{
if (!reason)
reason = "switch off thread";
SceUID threadID = currentThread;
if (threadID != threadIdleID[0] && threadID != threadIdleID[1])
{
Thread *current = __GetCurrentThread();
if (current && current->isRunning())
__KernelChangeReadyState(current, threadID, true);
// Idle 0 chosen entirely arbitrarily.
Thread *t = kernelObjects.GetFast<Thread>(threadIdleID[0]);
if (t)
{
hleSkipDeadbeef();
__KernelSwitchContext(t, reason);
return true;
}
else
ERROR_LOG(SCEKERNEL, "Unable to switch to idle thread.");
}
return false;
}
bool __KernelSwitchToThread(SceUID threadID, const char *reason)
{
if (!reason)
reason = "switch to thread";
if (currentThread != threadIdleID[0] && currentThread != threadIdleID[1])
{
ERROR_LOG_REPORT(SCEKERNEL, "__KernelSwitchToThread used when already on a thread.");
return false;
}
if (currentThread == threadID)
return false;
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (!t)
{
ERROR_LOG_REPORT(SCEKERNEL, "__KernelSwitchToThread: %x doesn't exist", threadID);
hleReSchedule("switch to deleted thread");
}
else if (t->isReady() || t->isRunning())
{
Thread *current = __GetCurrentThread();
if (current && current->isRunning())
__KernelChangeReadyState(current, currentThread, true);
__KernelSwitchContext(t, reason);
return true;
}
else
{
hleReSchedule("switch to waiting thread");
}
return false;
}
void __KernelIdle()
{
// Don't skip 0xDEADBEEF here, this is called directly bypassing CallSyscall().
// That means the hle flag would stick around until the next call.
CoreTiming::Idle();
// We Advance within __KernelReSchedule(), so anything that has now happened after idle
// will be triggered properly upon reschedule.
__KernelReSchedule("idle");
}
void __KernelThreadingShutdown()
{
kernelMemory.Free(threadReturnHackAddr);
threadqueue.clear();
threadReadyQueue.clear();
threadEndListeners.clear();
mipsCalls.clear();
threadReturnHackAddr = 0;
cbReturnHackAddr = 0;
__SetCurrentThread(NULL, 0, NULL);
intReturnHackAddr = 0;
pausedDelays.clear();
}
const char *__KernelGetThreadName(SceUID threadID)
{
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
return t->nt.name;
return "ERROR";
}
u32 __KernelGetWaitValue(SceUID threadID, u32 &error)
{
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
{
return t->getWaitInfo().waitValue;
}
else
{
ERROR_LOG(SCEKERNEL, "__KernelGetWaitValue ERROR: thread %i", threadID);
return 0;
}
}
u32 __KernelGetWaitTimeoutPtr(SceUID threadID, u32 &error)
{
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
{
return t->getWaitInfo().timeoutPtr;
}
else
{
ERROR_LOG(SCEKERNEL, "__KernelGetWaitTimeoutPtr ERROR: thread %i", threadID);
return 0;
}
}
SceUID __KernelGetWaitID(SceUID threadID, WaitType type, u32 &error)
{
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
{
return t->getWaitID(type);
}
else
{
ERROR_LOG(SCEKERNEL, "__KernelGetWaitID ERROR: thread %i", threadID);
return -1;
}
}
SceUID __KernelGetCurrentCallbackID(SceUID threadID, u32 &error)
{
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
return t->currentCallbackId;
else
{
ERROR_LOG(SCEKERNEL, "__KernelGetCurrentCallbackID ERROR: thread %i", threadID);
return 0;
}
}
u32 sceKernelReferThreadStatus(u32 threadID, u32 statusPtr)
{
static const u32 THREADINFO_SIZE = 104;
static const u32 THREADINFO_SIZE_AFTER_260 = 108;
if (threadID == 0)
threadID = __KernelGetCurThread();
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (!t)
{
ERROR_LOG(SCEKERNEL, "%08x=sceKernelReferThreadStatus(%i, %08x): bad thread", error, threadID, statusPtr);
return error;
}
u32 wantedSize = Memory::Read_U32(statusPtr);
if (sceKernelGetCompiledSdkVersion() > 0x02060010)
{
if (wantedSize > THREADINFO_SIZE_AFTER_260)
{
ERROR_LOG(SCEKERNEL, "%08x=sceKernelReferThreadStatus(%i, %08x): bad size %d", SCE_KERNEL_ERROR_ILLEGAL_SIZE, threadID, statusPtr, wantedSize);
return SCE_KERNEL_ERROR_ILLEGAL_SIZE;
}
DEBUG_LOG(SCEKERNEL, "sceKernelReferThreadStatus(%i, %08x)", threadID, statusPtr);
t->nt.nativeSize = THREADINFO_SIZE_AFTER_260;
if (wantedSize != 0)
Memory::Memcpy(statusPtr, &t->nt, wantedSize);
// TODO: What is this value? Basic tests show 0...
if (wantedSize > sizeof(t->nt))
Memory::Memset(statusPtr + sizeof(t->nt), 0, wantedSize - sizeof(t->nt));
}
else
{
DEBUG_LOG(SCEKERNEL, "sceKernelReferThreadStatus(%i, %08x)", threadID, statusPtr);
t->nt.nativeSize = THREADINFO_SIZE;
u32 sz = std::min(THREADINFO_SIZE, wantedSize);
if (sz != 0)
Memory::Memcpy(statusPtr, &t->nt, sz);
}
hleEatCycles(1220);
hleReSchedule("refer thread status");
return 0;
}
// Thanks JPCSP
u32 sceKernelReferThreadRunStatus(u32 threadID, u32 statusPtr)
{
if (threadID == 0)
threadID = __KernelGetCurThread();
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (!t)
{
ERROR_LOG(SCEKERNEL,"sceKernelReferThreadRunStatus Error %08x", error);
return error;
}
DEBUG_LOG(SCEKERNEL,"sceKernelReferThreadRunStatus(%i, %08x)", threadID, statusPtr);
if (!Memory::IsValidAddress(statusPtr))
return -1;
auto runStatus = PSPPointer<SceKernelThreadRunStatus>::Create(statusPtr);
// TODO: Check size?
runStatus->size = sizeof(SceKernelThreadRunStatus);
runStatus->status = t->nt.status;
runStatus->currentPriority = t->nt.currentPriority;
runStatus->waitType = t->nt.waitType;
runStatus->waitID = t->nt.waitID;
runStatus->wakeupCount = t->nt.wakeupCount;
runStatus->runForClocks = t->nt.runForClocks;
runStatus->numInterruptPreempts = t->nt.numInterruptPreempts;
runStatus->numThreadPreempts = t->nt.numThreadPreempts;
runStatus->numReleases = t->nt.numReleases;
return 0;
}
int sceKernelGetThreadExitStatus(SceUID threadID)
{
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
{
if (t->nt.status == THREADSTATUS_DORMANT) // TODO: can be dormant before starting, too, need to avoid that
{
DEBUG_LOG(SCEKERNEL,"sceKernelGetThreadExitStatus(%i)", threadID);
return t->nt.exitStatus;
}
else
{
DEBUG_LOG(SCEKERNEL,"sceKernelGetThreadExitStatus(%i): not dormant", threadID);
return SCE_KERNEL_ERROR_NOT_DORMANT;
}
}
else
{
ERROR_LOG(SCEKERNEL,"sceKernelGetThreadExitStatus Error %08x", error);
return SCE_KERNEL_ERROR_UNKNOWN_THID;
}
}
u32 sceKernelGetThreadmanIdType(u32 uid) {
int type;
if (kernelObjects.GetIDType(uid, &type)) {
if (type < 0x1000) {
DEBUG_LOG(SCEKERNEL, "%i=sceKernelGetThreadmanIdType(%i)", type, uid);
return type;
} else {
// This means a partition memory block or module, etc.
ERROR_LOG(SCEKERNEL, "sceKernelGetThreadmanIdType(%i): invalid object type %i", uid, type);
return SCE_KERNEL_ERROR_ILLEGAL_ARGUMENT;
}
} else {
ERROR_LOG(SCEKERNEL, "sceKernelGetThreadmanIdType(%i) - FAILED", uid);
return SCE_KERNEL_ERROR_ILLEGAL_ARGUMENT;
}
}
bool __ThreadmanIdListIsSleeping(const Thread *t) {
return t->isWaitingFor(WAITTYPE_SLEEP, 0);
}
bool __ThreadmanIdListIsDelayed(const Thread *t) {
return t->isWaitingFor(WAITTYPE_DELAY, t->GetUID());
}
bool __ThreadmanIdListIsSuspended(const Thread *t) {
return t->isSuspended();
}
bool __ThreadmanIdListIsDormant(const Thread *t) {
return t->isStopped();
}
u32 sceKernelGetThreadmanIdList(u32 type, u32 readBufPtr, u32 readBufSize, u32 idCountPtr) {
if (readBufSize >= 0x8000000) {
// Not exact, it's probably if the sum ends up negative or something.
ERROR_LOG_REPORT(SCEKERNEL, "sceKernelGetThreadmanIdList(%i, %08x, %i, %08x): invalid size", type, readBufPtr, readBufSize, idCountPtr);
return SCE_KERNEL_ERROR_ILLEGAL_ADDR;
}
if (!Memory::IsValidAddress(readBufPtr) && readBufSize > 0) {
// Crashes on a PSP.
ERROR_LOG_REPORT(SCEKERNEL, "sceKernelGetThreadmanIdList(%i, %08x, %i, %08x): invalid pointer", type, readBufPtr, readBufSize, idCountPtr);
return SCE_KERNEL_ERROR_ILLEGAL_ARGUMENT;
}
u32 total = 0;
auto uids = PSPPointer<SceUID>::Create(readBufPtr);
u32 error;
if (type > 0 && type <= SCE_KERNEL_TMID_Tlspl) {
DEBUG_LOG(SCEKERNEL, "sceKernelGetThreadmanIdList(%i, %08x, %i, %08x)", type, readBufPtr, readBufSize, idCountPtr);
total = kernelObjects.ListIDType(type, uids, readBufSize);
} else if (type >= SCE_KERNEL_TMID_SleepThread && type <= SCE_KERNEL_TMID_DormantThread) {
bool (*checkFunc)(const Thread *t) = NULL;
switch (type) {
case SCE_KERNEL_TMID_SleepThread:
checkFunc = &__ThreadmanIdListIsSleeping;
break;
case SCE_KERNEL_TMID_DelayThread:
checkFunc = &__ThreadmanIdListIsDelayed;
break;
case SCE_KERNEL_TMID_SuspendThread:
checkFunc = &__ThreadmanIdListIsSuspended;
break;
case SCE_KERNEL_TMID_DormantThread:
checkFunc = &__ThreadmanIdListIsDormant;
break;
default:
_dbg_assert_msg_(SCEKERNEL, false, "Unexpected type %d", type);
}
for (size_t i = 0; i < threadqueue.size(); i++) {
const Thread *t = kernelObjects.Get<Thread>(threadqueue[i], error);
if (checkFunc(t)) {
if (total < readBufSize) {
*uids++ = threadqueue[i];
}
++total;
}
}
} else {
ERROR_LOG_REPORT(SCEKERNEL, "sceKernelGetThreadmanIdList(%i, %08x, %i, %08x): invalid type", type, readBufPtr, readBufSize, idCountPtr);
return SCE_KERNEL_ERROR_ILLEGAL_TYPE;
}
if (Memory::IsValidAddress(idCountPtr)) {
Memory::Write_U32(total, idCountPtr);
}
return total > readBufSize ? readBufSize : total;
}
// Saves the current CPU context
void __KernelSaveContext(ThreadContext *ctx, bool vfpuEnabled)
{
// r and f are immediately next to each other and must be.
memcpy((void *)ctx->r, (void *)currentMIPS->r, sizeof(ctx->r) + sizeof(ctx->f));
if (vfpuEnabled)
{
memcpy(ctx->v, currentMIPS->v, sizeof(ctx->v));
memcpy(ctx->vfpuCtrl, currentMIPS->vfpuCtrl, sizeof(ctx->vfpuCtrl));
}
memcpy(ctx->other, currentMIPS->other, sizeof(ctx->other));
}
// Loads a CPU context
void __KernelLoadContext(ThreadContext *ctx, bool vfpuEnabled)
{
// r and f are immediately next to each other and must be.
memcpy((void *)currentMIPS->r, (void *)ctx->r, sizeof(ctx->r) + sizeof(ctx->f));
if (vfpuEnabled)
{
memcpy(currentMIPS->v, ctx->v, sizeof(ctx->v));
memcpy(currentMIPS->vfpuCtrl, ctx->vfpuCtrl, sizeof(ctx->vfpuCtrl));
}
memcpy(currentMIPS->other, ctx->other, sizeof(ctx->other));
// Reset the llBit, the other thread may have touched memory.
currentMIPS->llBit = 0;
}
u32 __KernelResumeThreadFromWait(SceUID threadID, u32 retval)
{
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
{
t->resumeFromWait();
t->setReturnValue(retval);
return 0;
}
else
{
ERROR_LOG(SCEKERNEL, "__KernelResumeThreadFromWait(%d): bad thread: %08x", threadID, error);
return error;
}
}
u32 __KernelResumeThreadFromWait(SceUID threadID, u64 retval)
{
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
{
t->resumeFromWait();
t->setReturnValue(retval);
return 0;
}
else
{
ERROR_LOG(SCEKERNEL, "__KernelResumeThreadFromWait(%d): bad thread: %08x", threadID, error);
return error;
}
}
// makes the current thread wait for an event
void __KernelWaitCurThread(WaitType type, SceUID waitID, u32 waitValue, u32 timeoutPtr, bool processCallbacks, const char *reason)
{
if (!dispatchEnabled)
{
WARN_LOG_REPORT(SCEKERNEL, "Ignoring wait, dispatching disabled... right thing to do?");
return;
}
Thread *thread = __GetCurrentThread();
thread->nt.waitID = waitID;
thread->nt.waitType = type;
__KernelChangeThreadState(thread, ThreadStatus(THREADSTATUS_WAIT | (thread->nt.status & THREADSTATUS_SUSPEND)));
thread->nt.numReleases++;
thread->waitInfo.waitValue = waitValue;
thread->waitInfo.timeoutPtr = timeoutPtr;
// TODO: Remove this once all callers are cleaned up.
RETURN(0); //pretend all went OK
// TODO: time waster
if (!reason)
reason = "started wait";
hleReSchedule(processCallbacks, reason);
// TODO: Remove thread from Ready queue?
}
void __KernelWaitCallbacksCurThread(WaitType type, SceUID waitID, u32 waitValue, u32 timeoutPtr)
{
if (!dispatchEnabled)
{
WARN_LOG_REPORT(SCEKERNEL, "Ignoring wait, dispatching disabled... right thing to do?");
return;
}
Thread *thread = __GetCurrentThread();
thread->nt.waitID = waitID;
thread->nt.waitType = type;
__KernelChangeThreadState(thread, ThreadStatus(THREADSTATUS_WAIT | (thread->nt.status & THREADSTATUS_SUSPEND)));
// TODO: Probably not...?
thread->nt.numReleases++;
thread->waitInfo.waitValue = waitValue;
thread->waitInfo.timeoutPtr = timeoutPtr;
__KernelForceCallbacks();
}
void hleScheduledWakeup(u64 userdata, int cyclesLate)
{
SceUID threadID = (SceUID)userdata;
u32 error;
if (__KernelGetWaitID(threadID, WAITTYPE_DELAY, error) == threadID)
{
__KernelResumeThreadFromWait(threadID, 0);
__KernelReSchedule("thread delay finished");
}
}
void __KernelScheduleWakeup(SceUID threadID, s64 usFromNow)
{
s64 cycles = usToCycles(usFromNow);
CoreTiming::ScheduleEvent(cycles, eventScheduledWakeup, threadID);
}
void __KernelCancelWakeup(SceUID threadID)
{
CoreTiming::UnscheduleEvent(eventScheduledWakeup, threadID);
}
void hleThreadEndTimeout(u64 userdata, int cyclesLate)
{
SceUID threadID = (SceUID) userdata;
HLEKernel::WaitExecTimeout<Thread, WAITTYPE_THREADEND>(threadID);
}
void __KernelScheduleThreadEndTimeout(SceUID threadID, SceUID waitForID, s64 usFromNow)
{
s64 cycles = usToCycles(usFromNow);
CoreTiming::ScheduleEvent(cycles, eventThreadEndTimeout, threadID);
}
void __KernelCancelThreadEndTimeout(SceUID threadID)
{
CoreTiming::UnscheduleEvent(eventThreadEndTimeout, threadID);
}
void __KernelRemoveFromThreadQueue(SceUID threadID)
{
int prio = __KernelGetThreadPrio(threadID);
if (prio != 0)
threadReadyQueue.remove(prio, threadID);
threadqueue.erase(std::remove(threadqueue.begin(), threadqueue.end(), threadID), threadqueue.end());
}
void __KernelStopThread(SceUID threadID, int exitStatus, const char *reason)
{
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
{
__KernelChangeReadyState(t, threadID, false);
t->nt.exitStatus = exitStatus;
t->nt.status = THREADSTATUS_DORMANT;
__KernelFireThreadEnd(threadID);
for (size_t i = 0; i < t->waitingThreads.size(); ++i)
{
const SceUID waitingThread = t->waitingThreads[i];
u32 timeoutPtr = __KernelGetWaitTimeoutPtr(waitingThread, error);
if (HLEKernel::VerifyWait(waitingThread, WAITTYPE_THREADEND, threadID))
{
s64 cyclesLeft = CoreTiming::UnscheduleEvent(eventThreadEndTimeout, waitingThread);
if (timeoutPtr != 0)
Memory::Write_U32((u32) cyclesToUs(cyclesLeft), timeoutPtr);
HLEKernel::ResumeFromWait(waitingThread, WAITTYPE_THREADEND, threadID, exitStatus);
}
}
t->waitingThreads.clear();
// Stopped threads are never waiting.
t->nt.waitType = WAITTYPE_NONE;
t->nt.waitID = 0;
}
else
ERROR_LOG_REPORT(SCEKERNEL, "__KernelStopThread: thread %d does not exist", threadID);
}
u32 __KernelDeleteThread(SceUID threadID, int exitStatus, const char *reason)
{
__KernelStopThread(threadID, exitStatus, reason);
__KernelRemoveFromThreadQueue(threadID);
if (currentThread == threadID)
__SetCurrentThread(NULL, 0, NULL);
if (currentCallbackThreadID == threadID)
{
currentCallbackThreadID = 0;
g_inCbCount = 0;
}
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
{
for (auto it = t->callbacks.begin(), end = t->callbacks.end(); it != end; ++it)
{
Callback *callback = kernelObjects.Get<Callback>(*it, error);
if (callback && callback->nc.notifyCount != 0)
readyCallbacksCount--;
}
t->Cleanup();
}
return kernelObjects.Destroy<Thread>(threadID);
}
// Returns NULL if the current thread is fine.
Thread *__KernelNextThread() {
SceUID bestThread;
// If the current thread is running, it's a valid candidate.
Thread *cur = __GetCurrentThread();
if (cur && cur->isRunning())
{
bestThread = threadReadyQueue.pop_first_better(cur->nt.currentPriority);
if (bestThread != 0)
__KernelChangeReadyState(cur, currentThread, true);
}
else
bestThread = threadReadyQueue.pop_first();
// Assume threadReadyQueue has not become corrupt.
if (bestThread != 0)
return kernelObjects.GetFast<Thread>(bestThread);
else
return 0;
}
void __KernelReSchedule(const char *reason)
{
// First, let's check if there are any pending callbacks to trigger.
// TODO: Could probably take this out of __KernelReSchedule() which is a bit hot.
__KernelCheckCallbacks();
// Execute any pending events while we're doing scheduling.
CoreTiming::Advance();
if (__IsInInterrupt() || !__KernelIsDispatchEnabled())
{
// Threads don't get changed within interrupts or while dispatch is disabled.
reason = "In Interrupt Or Callback";
return;
}
Thread *nextThread = __KernelNextThread();
if (nextThread)
__KernelSwitchContext(nextThread, reason);
// Otherwise, no need to switch.
}
void __KernelReSchedule(bool doCallbacks, const char *reason)
{
Thread *thread = __GetCurrentThread();
if (doCallbacks)
{
if (thread)
thread->isProcessingCallbacks = doCallbacks;
}
__KernelReSchedule(reason);
if (doCallbacks && thread != NULL && thread->GetUID() == currentThread) {
if (thread->isRunning()) {
thread->isProcessingCallbacks = false;
}
}
}
int sceKernelCheckThreadStack()
{
u32 error;
Thread *t = kernelObjects.Get<Thread>(__KernelGetCurThread(), error);
if (t) {
u32 diff = labs((long)((s64)currentMIPS->r[MIPS_REG_SP] - (s64)t->currentStack.start));
DEBUG_LOG(SCEKERNEL, "%i=sceKernelCheckThreadStack()", diff);
return diff;
} else {
ERROR_LOG_REPORT(SCEKERNEL, "sceKernelCheckThreadStack() - not on thread");
return -1;
}
}
void ThreadContext::reset()
{
for (int i = 0; i<32; i++)
{
r[i] = 0xDEADBEEF;
fi[i] = 0x7f800001;
}
r[0] = 0;
for (int i = 0; i<128; i++)
{
v[i] = 0.0f;
}
for (int i = 0; i<15; i++)
{
vfpuCtrl[i] = 0x00000000;
}
vfpuCtrl[VFPU_CTRL_SPREFIX] = 0xe4; // neutral
vfpuCtrl[VFPU_CTRL_TPREFIX] = 0xe4; // neutral
vfpuCtrl[VFPU_CTRL_DPREFIX] = 0x0; // neutral
vfpuCtrl[VFPU_CTRL_CC] = 0x3f;
vfpuCtrl[VFPU_CTRL_INF4] = 0;
vfpuCtrl[VFPU_CTRL_REV] = 0x7772ceab;
vfpuCtrl[VFPU_CTRL_RCX0] = 0x3f800001;
vfpuCtrl[VFPU_CTRL_RCX1] = 0x3f800002;
vfpuCtrl[VFPU_CTRL_RCX2] = 0x3f800004;
vfpuCtrl[VFPU_CTRL_RCX3] = 0x3f800008;
vfpuCtrl[VFPU_CTRL_RCX4] = 0x3f800000;
vfpuCtrl[VFPU_CTRL_RCX5] = 0x3f800000;
vfpuCtrl[VFPU_CTRL_RCX6] = 0x3f800000;
vfpuCtrl[VFPU_CTRL_RCX7] = 0x3f800000;
fpcond = 0;
fcr31 = 0x00000e00;
hi = 0xDEADBEEF;
lo = 0xDEADBEEF;
}
void __KernelResetThread(Thread *t, int lowestPriority)
{
t->context.reset();
t->context.pc = t->nt.entrypoint;
// If the thread would be better than lowestPriority, reset to its initial. Yes, kinda odd...
if (t->nt.currentPriority < lowestPriority)
t->nt.currentPriority = t->nt.initialPriority;
t->nt.waitType = WAITTYPE_NONE;
t->nt.waitID = 0;
memset(&t->waitInfo, 0, sizeof(t->waitInfo));
t->nt.exitStatus = SCE_KERNEL_ERROR_NOT_DORMANT;
t->isProcessingCallbacks = false;
t->currentCallbackId = 0;
t->currentMipscallId = 0;
t->pendingMipsCalls.clear();
t->context.r[MIPS_REG_RA] = threadReturnHackAddr; //hack! TODO fix
// TODO: Not sure if it's reset here, but this makes sense.
t->context.r[MIPS_REG_GP] = t->nt.gpreg;
t->FillStack();
if (!t->waitingThreads.empty())
ERROR_LOG_REPORT(SCEKERNEL, "Resetting thread with threads waiting on end?");
}
Thread *__KernelCreateThread(SceUID &id, SceUID moduleId, const char *name, u32 entryPoint, u32 priority, int stacksize, u32 attr)
{
Thread *t = new Thread;
id = kernelObjects.Create(t);
threadqueue.push_back(id);
threadReadyQueue.prepare(priority);
memset(&t->nt, 0xCD, sizeof(t->nt));
t->nt.entrypoint = entryPoint;
t->nt.nativeSize = sizeof(t->nt);
t->nt.attr = attr;
// TODO: I have no idea what this value is but the PSP firmware seems to add it on create.
t->nt.attr |= 0xFF;
t->nt.initialPriority = t->nt.currentPriority = priority;
t->nt.stackSize = stacksize;
t->nt.status = THREADSTATUS_DORMANT;
t->nt.numInterruptPreempts = 0;
t->nt.numReleases = 0;
t->nt.numThreadPreempts = 0;
t->nt.runForClocks.lo = 0;
t->nt.runForClocks.hi = 0;
t->nt.wakeupCount = 0;
t->nt.initialStack = 0;
t->nt.waitID = 0;
t->nt.exitStatus = SCE_KERNEL_ERROR_DORMANT;
t->nt.waitType = WAITTYPE_NONE;
if (moduleId)
t->nt.gpreg = __KernelGetModuleGP(moduleId);
else
t->nt.gpreg = 0; // sceKernelStartThread will take care of this.
t->moduleId = moduleId;
strncpy(t->nt.name, name, KERNELOBJECT_MAX_NAME_LENGTH);
t->nt.name[KERNELOBJECT_MAX_NAME_LENGTH] = '\0';
u32 stackSize = t->nt.stackSize;
t->AllocateStack(stackSize); // can change the stacksize!
t->nt.stackSize = stackSize;
return t;
}
SceUID __KernelSetupRootThread(SceUID moduleID, int args, const char *argp, int prio, int stacksize, int attr)
{
//grab mips regs
SceUID id;
Thread *thread = __KernelCreateThread(id, moduleID, "root", currentMIPS->pc, prio, stacksize, attr);
if (thread->currentStack.start == 0)
ERROR_LOG_REPORT(SCEKERNEL, "Unable to allocate stack for root thread.");
__KernelResetThread(thread, 0);
Thread *prevThread = __GetCurrentThread();
if (prevThread && prevThread->isRunning())
__KernelChangeReadyState(currentThread, true);
__SetCurrentThread(thread, id, "root");
thread->nt.status = THREADSTATUS_RUNNING; // do not schedule
strcpy(thread->nt.name, "root");
__KernelLoadContext(&thread->context, (attr & PSP_THREAD_ATTR_VFPU) != 0);
currentMIPS->r[MIPS_REG_A0] = args;
currentMIPS->r[MIPS_REG_SP] -= (args + 0xf) & ~0xf;
u32 location = currentMIPS->r[MIPS_REG_SP];
currentMIPS->r[MIPS_REG_A1] = location;
if (argp)
Memory::Memcpy(location, argp, args);
// Let's assume same as starting a new thread, 64 bytes for safety/kernel.
currentMIPS->r[MIPS_REG_SP] -= 64;
return id;
}
SceUID __KernelCreateThreadInternal(const char *threadName, SceUID moduleID, u32 entry, u32 prio, int stacksize, u32 attr)
{
SceUID id;
Thread *newThread = __KernelCreateThread(id, moduleID, threadName, entry, prio, stacksize, attr);
if (newThread->currentStack.start == 0)
return SCE_KERNEL_ERROR_NO_MEMORY;
return id;
}
int __KernelCreateThread(const char *threadName, SceUID moduleID, u32 entry, u32 prio, int stacksize, u32 attr, u32 optionAddr)
{
if (threadName == NULL)
{
ERROR_LOG_REPORT(SCEKERNEL, "SCE_KERNEL_ERROR_ERROR=sceKernelCreateThread(): NULL name");
return SCE_KERNEL_ERROR_ERROR;
}
if ((u32)stacksize < 0x200)
{
WARN_LOG_REPORT(SCEKERNEL, "sceKernelCreateThread(name=%s): bogus stack size %08x", threadName, stacksize);
return SCE_KERNEL_ERROR_ILLEGAL_STACK_SIZE;
}
if (prio < 0x08 || prio > 0x77)
{
WARN_LOG_REPORT(SCEKERNEL, "sceKernelCreateThread(name=%s): bogus priority %08x", threadName, prio);
// TODO: Should return this error.
// return SCE_KERNEL_ERROR_ILLEGAL_PRIORITY;
prio = prio < 0x08 ? 0x08 : 0x77;
}
if (!Memory::IsValidAddress(entry))
{
ERROR_LOG_REPORT(SCEKERNEL, "sceKernelCreateThread(name=%s): invalid entry %08x", threadName, entry);
// The PSP firmware seems to allow NULL...?
if (entry != 0)
return SCE_KERNEL_ERROR_ILLEGAL_ADDR;
}
if ((attr & ~PSP_THREAD_ATTR_USER_MASK) != 0)
{
WARN_LOG_REPORT(SCEKERNEL, "sceKernelCreateThread(name=%s): illegal attributes %08x", threadName, attr);
// TODO: Should return this error.
// return SCE_KERNEL_ERROR_ILLEGAL_ATTR;
}
if ((attr & ~PSP_THREAD_ATTR_SUPPORTED) != 0)
WARN_LOG_REPORT(SCEKERNEL, "sceKernelCreateThread(name=%s): unsupported attributes %08x", threadName, attr);
// TODO: Not sure what these values are, but they are removed from the attr silently.
// Some are USB/VSH specific, probably removes when they are from the wrong module?
attr &= ~PSP_THREAD_ATTR_USER_ERASE;
// We're assuming all threads created are user threads.
if ((attr & PSP_THREAD_ATTR_KERNEL) == 0)
attr |= PSP_THREAD_ATTR_USER;
SceUID id = __KernelCreateThreadInternal(threadName, moduleID, entry, prio, stacksize, attr);
if ((u32)id == SCE_KERNEL_ERROR_NO_MEMORY)
{
ERROR_LOG_REPORT(SCEKERNEL, "sceKernelCreateThread(name=%s): out of memory, %08x stack requested", threadName, stacksize);
return SCE_KERNEL_ERROR_NO_MEMORY;
}
INFO_LOG(SCEKERNEL, "%i=sceKernelCreateThread(name=%s, entry=%08x, prio=%x, stacksize=%i)", id, threadName, entry, prio, stacksize);
if (optionAddr != 0)
WARN_LOG_REPORT(SCEKERNEL, "sceKernelCreateThread(name=%s): unsupported options parameter %08x", threadName, optionAddr);
// Creating a thread resumes dispatch automatically. Probably can't create without it.
dispatchEnabled = true;
hleEatCycles(32000);
// This won't schedule to the new thread, but it may to one woken from eating cycles.
// Technically, this should not eat all at once, and reschedule in the middle, but that's hard.
hleReSchedule("thread created");
return id;
}
int sceKernelCreateThread(const char *threadName, u32 entry, u32 prio, int stacksize, u32 attr, u32 optionAddr)
{
return __KernelCreateThread(threadName, __KernelGetCurThreadModuleId(), entry, prio, stacksize, attr, optionAddr);
}
int __KernelStartThread(SceUID threadToStartID, int argSize, u32 argBlockPtr, bool forceArgs)
{
u32 error;
Thread *startThread = kernelObjects.Get<Thread>(threadToStartID, error);
if (startThread == 0)
return error;
Thread *cur = __GetCurrentThread();
__KernelResetThread(startThread, cur ? cur->nt.currentPriority : 0);
u32 &sp = startThread->context.r[MIPS_REG_SP];
// Force args means just use those as a0/a1 without any special treatment.
// This is a hack to avoid allocating memory for helper threads which take args.
if ((argBlockPtr && argSize > 0) || forceArgs)
{
// Make room for the arguments, always 0x10 aligned.
if (!forceArgs)
sp -= (argSize + 0xf) & ~0xf;
startThread->context.r[MIPS_REG_A0] = argSize;
startThread->context.r[MIPS_REG_A1] = sp;
}
else
{
startThread->context.r[MIPS_REG_A0] = 0;
startThread->context.r[MIPS_REG_A1] = 0;
}
// Now copy argument to stack.
if (!forceArgs && Memory::IsValidAddress(argBlockPtr))
Memory::Memcpy(sp, Memory::GetPointer(argBlockPtr), argSize);
// On the PSP, there's an extra 64 bytes of stack eaten after the args.
// This could be stack overflow safety, or just stack eaten by the kernel entry func.
sp -= 64;
// Smaller is better for priority. Only switch if the new thread is better.
if (cur && cur->nt.currentPriority > startThread->nt.currentPriority)
{
__KernelChangeReadyState(cur, currentThread, true);
hleReSchedule("thread started");
}
// Starting a thread automatically resumes the dispatch thread.
dispatchEnabled = true;
__KernelChangeReadyState(startThread, threadToStartID, true);
return 0;
}
// int sceKernelStartThread(SceUID threadToStartID, SceSize argSize, void *argBlock)
int sceKernelStartThread(SceUID threadToStartID, int argSize, u32 argBlockPtr)
{
u32 error = 0;
if (threadToStartID == 0)
{
error = SCE_KERNEL_ERROR_ILLEGAL_THID;
ERROR_LOG_REPORT(SCEKERNEL, "%08x=sceKernelStartThread(thread=%i, argSize=%i, argPtr=%08x): NULL thread", error, threadToStartID, argSize, argBlockPtr);
return error;
}
if (argSize < 0 || argBlockPtr & 0x80000000)
{
error = SCE_KERNEL_ERROR_ILLEGAL_ADDR;
ERROR_LOG_REPORT(SCEKERNEL, "%08x=sceKernelStartThread(thread=%i, argSize=%i, argPtr=%08x): bad argument pointer/length", error, threadToStartID, argSize, argBlockPtr);
return error;
}
Thread *startThread = kernelObjects.Get<Thread>(threadToStartID, error);
if (startThread == 0)
{
ERROR_LOG_REPORT(SCEKERNEL, "%08x=sceKernelStartThread(thread=%i, argSize=%i, argPtr=%08x): thread does not exist!", error, threadToStartID, argSize, argBlockPtr);
return error;
}
if (startThread->nt.status != THREADSTATUS_DORMANT)
{
error = SCE_KERNEL_ERROR_NOT_DORMANT;
WARN_LOG_REPORT(SCEKERNEL, "%08x=sceKernelStartThread(thread=%i, argSize=%i, argPtr=%08x): thread already running", error, threadToStartID, argSize, argBlockPtr);
return error;
}
INFO_LOG(SCEKERNEL, "sceKernelStartThread(thread=%i, argSize=%i, argPtr=%08x)", threadToStartID, argSize, argBlockPtr);
hleEatCycles(3400);
return __KernelStartThread(threadToStartID, argSize, argBlockPtr);
}
int sceKernelGetThreadStackFreeSize(SceUID threadID)
{
DEBUG_LOG(SCEKERNEL, "sceKernelGetThreadStackFreeSize(%i)", threadID);
if (threadID == 0)
threadID = currentThread;
u32 error;
Thread *thread = kernelObjects.Get<Thread>(threadID, error);
if (thread == 0)
{
ERROR_LOG(SCEKERNEL, "sceKernelGetThreadStackFreeSize: invalid thread id %i", threadID);
return error;
}
// Scan the stack for 0xFF, starting after 0x10 (the thread id is written there.)
// Obviously this doesn't work great if PSP_THREAD_ATTR_NO_FILLSTACK is used.
int sz = 0;
for (u32 offset = 0x10; offset < thread->nt.stackSize; ++offset)
{
if (Memory::Read_U8(thread->currentStack.start + offset) != 0xFF)
break;
sz++;
}
return sz & ~3;
}
void __KernelReturnFromThread()
{
hleSkipDeadbeef();
int exitStatus = currentMIPS->r[MIPS_REG_V0];
Thread *thread = __GetCurrentThread();
_dbg_assert_msg_(SCEKERNEL, thread != NULL, "Returned from a NULL thread.");
INFO_LOG(SCEKERNEL,"__KernelReturnFromThread: %d", exitStatus);
__KernelStopThread(currentThread, exitStatus, "thread returned");
hleReSchedule("thread returned");
// The stack will be deallocated when the thread is deleted.
}
void sceKernelExitThread(int exitStatus)
{
Thread *thread = __GetCurrentThread();
_dbg_assert_msg_(SCEKERNEL, thread != NULL, "Exited from a NULL thread.");
INFO_LOG(SCEKERNEL, "sceKernelExitThread(%d)", exitStatus);
__KernelStopThread(currentThread, exitStatus, "thread exited");
hleReSchedule("thread exited");
// The stack will be deallocated when the thread is deleted.
}
void _sceKernelExitThread(int exitStatus)
{
Thread *thread = __GetCurrentThread();
_dbg_assert_msg_(SCEKERNEL, thread != NULL, "_Exited from a NULL thread.");
ERROR_LOG_REPORT(SCEKERNEL, "_sceKernelExitThread(%d): should not be called directly", exitStatus);
__KernelStopThread(currentThread, exitStatus, "thread _exited");
hleReSchedule("thread _exited");
// The stack will be deallocated when the thread is deleted.
}
void sceKernelExitDeleteThread(int exitStatus)
{
Thread *thread = __GetCurrentThread();
if (thread)
{
INFO_LOG(SCEKERNEL,"sceKernelExitDeleteThread(%d)", exitStatus);
__KernelDeleteThread(currentThread, exitStatus, "thread exited with delete");
// Temporary hack since we don't reschedule within callbacks.
g_inCbCount = 0;
hleReSchedule("thread exited with delete");
}
else
ERROR_LOG_REPORT(SCEKERNEL, "sceKernelExitDeleteThread(%d) ERROR - could not find myself!", exitStatus);
}
u32 sceKernelSuspendDispatchThread()
{
if (!__InterruptsEnabled())
{
DEBUG_LOG(SCEKERNEL, "sceKernelSuspendDispatchThread(): interrupts disabled");
return SCE_KERNEL_ERROR_CPUDI;
}
u32 oldDispatchEnabled = dispatchEnabled;
dispatchEnabled = false;
DEBUG_LOG(SCEKERNEL, "%i=sceKernelSuspendDispatchThread()", oldDispatchEnabled);
hleEatCycles(940);
return oldDispatchEnabled;
}
u32 sceKernelResumeDispatchThread(u32 enabled)
{
if (!__InterruptsEnabled())
{
DEBUG_LOG(SCEKERNEL, "sceKernelResumeDispatchThread(%i): interrupts disabled", enabled);
return SCE_KERNEL_ERROR_CPUDI;
}
u32 oldDispatchEnabled = dispatchEnabled;
dispatchEnabled = enabled != 0;
DEBUG_LOG(SCEKERNEL, "sceKernelResumeDispatchThread(%i) - from %i", enabled, oldDispatchEnabled);
hleReSchedule("dispatch resumed");
hleEatCycles(940);
return 0;
}
bool __KernelIsDispatchEnabled()
{
// Dispatch can never be enabled when interrupts are disabled.
return dispatchEnabled && __InterruptsEnabled();
}
int sceKernelRotateThreadReadyQueue(int priority)
{
VERBOSE_LOG(SCEKERNEL, "sceKernelRotateThreadReadyQueue(%x)", priority);
Thread *cur = __GetCurrentThread();
// 0 is special, it means "my current priority."
if (priority == 0)
priority = cur->nt.currentPriority;
if (priority <= 0x07 || priority > 0x77)
return SCE_KERNEL_ERROR_ILLEGAL_PRIORITY;
if (!threadReadyQueue.empty(priority))
{
// In other words, yield to everyone else.
if (cur->nt.currentPriority == priority)
{
threadReadyQueue.push_back(priority, currentThread);
cur->nt.status = (cur->nt.status & ~THREADSTATUS_RUNNING) | THREADSTATUS_READY;
}
// Yield the next thread of this priority to all other threads of same priority.
else
threadReadyQueue.rotate(priority);
}
hleReSchedule("rotatethreadreadyqueue");
hleEatCycles(250);
return 0;
}
int sceKernelDeleteThread(int threadID)
{
if (threadID == 0 || threadID == currentThread)
{
ERROR_LOG(SCEKERNEL, "sceKernelDeleteThread(%i): cannot delete current thread", threadID);
return SCE_KERNEL_ERROR_NOT_DORMANT;
}
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
{
if (!t->isStopped())
{
ERROR_LOG(SCEKERNEL, "sceKernelDeleteThread(%i): thread not dormant", threadID);
return SCE_KERNEL_ERROR_NOT_DORMANT;
}
DEBUG_LOG(SCEKERNEL, "sceKernelDeleteThread(%i)", threadID);
return __KernelDeleteThread(threadID, SCE_KERNEL_ERROR_THREAD_TERMINATED, "thread deleted");
}
else
{
ERROR_LOG(SCEKERNEL, "sceKernelDeleteThread(%i): thread doesn't exist", threadID);
return error;
}
}
int sceKernelTerminateDeleteThread(int threadID)
{
if (threadID == 0 || threadID == currentThread)
{
ERROR_LOG(SCEKERNEL, "sceKernelTerminateDeleteThread(%i): cannot terminate current thread", threadID);
return SCE_KERNEL_ERROR_ILLEGAL_THID;
}
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
{
INFO_LOG(SCEKERNEL, "sceKernelTerminateDeleteThread(%i)", threadID);
error = __KernelDeleteThread(threadID, SCE_KERNEL_ERROR_THREAD_TERMINATED, "thread terminated with delete");
return error;
}
else
{
ERROR_LOG(SCEKERNEL, "sceKernelTerminateDeleteThread(%i): thread doesn't exist", threadID);
return error;
}
}
int sceKernelTerminateThread(SceUID threadID)
{
if (threadID == 0 || threadID == currentThread)
{
ERROR_LOG(SCEKERNEL, "sceKernelTerminateThread(%i): cannot terminate current thread", threadID);
return SCE_KERNEL_ERROR_ILLEGAL_THID;
}
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
{
if (t->isStopped())
{
ERROR_LOG(SCEKERNEL, "sceKernelTerminateThread(%i): already stopped", threadID);
return SCE_KERNEL_ERROR_DORMANT;
}
INFO_LOG(SCEKERNEL, "sceKernelTerminateThread(%i)", threadID);
// TODO: Should this reschedule? Seems like not.
__KernelStopThread(threadID, SCE_KERNEL_ERROR_THREAD_TERMINATED, "thread terminated");
// On terminate, we reset the thread priority. On exit, we don't always (see __KernelResetThread.)
t->nt.currentPriority = t->nt.initialPriority;
return 0;
}
else
{
ERROR_LOG(SCEKERNEL, "sceKernelTerminateThread(%i): thread doesn't exist", threadID);
return error;
}
}
SceUID __KernelGetCurThread()
{
return currentThread;
}
SceUID __KernelGetCurThreadModuleId()
{
Thread *t = __GetCurrentThread();
if (t)
return t->moduleId;
return 0;
}
u32 __KernelGetCurThreadStack()
{
Thread *t = __GetCurrentThread();
if (t)
return t->currentStack.end;
return 0;
}
SceUID sceKernelGetThreadId()
{
VERBOSE_LOG(SCEKERNEL, "%i = sceKernelGetThreadId()", currentThread);
hleEatCycles(180);
return currentThread;
}
void sceKernelGetThreadCurrentPriority()
{
u32 retVal = __GetCurrentThread()->nt.currentPriority;
DEBUG_LOG(SCEKERNEL,"%i = sceKernelGetThreadCurrentPriority()", retVal);
RETURN(retVal);
}
int sceKernelChangeCurrentThreadAttr(u32 clearAttr, u32 setAttr)
{
// Seems like this is the only allowed attribute?
if ((clearAttr & ~PSP_THREAD_ATTR_VFPU) != 0 || (setAttr & ~PSP_THREAD_ATTR_VFPU) != 0)
{
ERROR_LOG_REPORT(SCEKERNEL, "sceKernelChangeCurrentThreadAttr(clear = %08x, set = %08x): invalid attr", clearAttr, setAttr);
return SCE_KERNEL_ERROR_ILLEGAL_ATTR;
}
DEBUG_LOG(SCEKERNEL, "0 = sceKernelChangeCurrentThreadAttr(clear = %08x, set = %08x)", clearAttr, setAttr);
Thread *t = __GetCurrentThread();
if (t)
t->nt.attr = (t->nt.attr & ~clearAttr) | setAttr;
else
ERROR_LOG_REPORT(SCEKERNEL, "%s(): No current thread?", __FUNCTION__);
return 0;
}
int sceKernelChangeThreadPriority(SceUID threadID, int priority) {
if (threadID == 0) {
threadID = currentThread;
}
// 0 means the current (running) thread's priority, not target's.
if (priority == 0) {
Thread *cur = __GetCurrentThread();
if (!cur) {
ERROR_LOG_REPORT(SCEKERNEL, "sceKernelChangeThreadPriority(%i, %i): no current thread?", threadID, priority);
} else {
priority = cur->nt.currentPriority;
}
}
u32 error;
Thread *thread = kernelObjects.Get<Thread>(threadID, error);
if (thread) {
if (thread->isStopped()) {
ERROR_LOG_REPORT(SCEKERNEL, "sceKernelChangeThreadPriority(%i, %i): thread is dormant", threadID, priority);
return SCE_KERNEL_ERROR_DORMANT;
}
if (priority < 0x08 || priority > 0x77) {
ERROR_LOG_REPORT(SCEKERNEL, "sceKernelChangeThreadPriority(%i, %i): bogus priority", threadID, priority);
return SCE_KERNEL_ERROR_ILLEGAL_PRIORITY;
}
DEBUG_LOG(SCEKERNEL, "sceKernelChangeThreadPriority(%i, %i)", threadID, priority);
int old = thread->nt.currentPriority;
threadReadyQueue.remove(old, threadID);
thread->nt.currentPriority = priority;
threadReadyQueue.prepare(thread->nt.currentPriority);
if (thread->isRunning()) {
thread->nt.status = (thread->nt.status & ~THREADSTATUS_RUNNING) | THREADSTATUS_READY;
}
if (thread->isReady()) {
threadReadyQueue.push_back(thread->nt.currentPriority, threadID);
}
hleEatCycles(450);
hleReSchedule("change thread priority");
return 0;
} else {
ERROR_LOG(SCEKERNEL, "%08x=sceKernelChangeThreadPriority(%i, %i) failed - no such thread", error, threadID, priority);
return error;
}
}
s64 __KernelDelayThreadUs(u64 usec) {
if (usec < 200) {
return 210;
}
// It never wakes up right away. It usually takes at least 15 extra us, but let's be nicer.
return usec + 10;
}
int sceKernelDelayThreadCB(u32 usec) {
hleEatCycles(2000);
if (usec > 0) {
DEBUG_LOG(SCEKERNEL, "sceKernelDelayThreadCB(%i usec)", usec);
SceUID curThread = __KernelGetCurThread();
__KernelScheduleWakeup(curThread, __KernelDelayThreadUs(usec));
__KernelWaitCurThread(WAITTYPE_DELAY, curThread, 0, 0, true, "thread delayed");
} else {
DEBUG_LOG(SCEKERNEL, "sceKernelDelayThreadCB(%i usec): no delay", usec);
hleReSchedule("thread delayed");
}
return 0;
}
int sceKernelDelayThread(u32 usec) {
hleEatCycles(2000);
if (usec > 0) {
DEBUG_LOG(SCEKERNEL, "sceKernelDelayThread(%i usec)", usec);
SceUID curThread = __KernelGetCurThread();
__KernelScheduleWakeup(curThread, __KernelDelayThreadUs(usec));
__KernelWaitCurThread(WAITTYPE_DELAY, curThread, 0, 0, false, "thread delayed");
} else {
DEBUG_LOG(SCEKERNEL, "sceKernelDelayThread(%i usec): no delay", usec);
hleReSchedule("thread delayed");
}
return 0;
}
int sceKernelDelaySysClockThreadCB(u32 sysclockAddr)
{
auto sysclock = PSPPointer<SceKernelSysClock>::Create(sysclockAddr);
if (!sysclock.IsValid()) {
ERROR_LOG(SCEKERNEL, "sceKernelDelaySysClockThreadCB(%08x) - bad pointer", sysclockAddr);
return -1;
}
// TODO: Which unit?
u64 usec = sysclock->lo | ((u64)sysclock->hi << 32);
DEBUG_LOG(SCEKERNEL, "sceKernelDelaySysClockThreadCB(%08x (%llu))", sysclockAddr, usec);
SceUID curThread = __KernelGetCurThread();
__KernelScheduleWakeup(curThread, __KernelDelayThreadUs(usec));
__KernelWaitCurThread(WAITTYPE_DELAY, curThread, 0, 0, true, "thread delayed");
return 0;
}
int sceKernelDelaySysClockThread(u32 sysclockAddr)
{
auto sysclock = PSPPointer<SceKernelSysClock>::Create(sysclockAddr);
if (!sysclock.IsValid()) {
ERROR_LOG(SCEKERNEL, "sceKernelDelaySysClockThread(%08x) - bad pointer", sysclockAddr);
return -1;
}
// TODO: Which unit?
u64 usec = sysclock->lo | ((u64)sysclock->hi << 32);
DEBUG_LOG(SCEKERNEL, "sceKernelDelaySysClockThread(%08x (%llu))", sysclockAddr, usec);
SceUID curThread = __KernelGetCurThread();
__KernelScheduleWakeup(curThread, __KernelDelayThreadUs(usec));
__KernelWaitCurThread(WAITTYPE_DELAY, curThread, 0, 0, false, "thread delayed");
return 0;
}
u32 __KernelGetThreadPrio(SceUID id)
{
u32 error;
Thread *thread = kernelObjects.Get<Thread>(id, error);
if (thread)
return thread->nt.currentPriority;
return 0;
}
bool __KernelThreadSortPriority(SceUID thread1, SceUID thread2)
{
return __KernelGetThreadPrio(thread1) < __KernelGetThreadPrio(thread2);
}
//////////////////////////////////////////////////////////////////////////
// WAIT/SLEEP ETC
//////////////////////////////////////////////////////////////////////////
int sceKernelWakeupThread(SceUID uid)
{
if (uid == currentThread)
{
WARN_LOG_REPORT(SCEKERNEL, "sceKernelWakeupThread(%i): unable to wakeup current thread", uid);
return SCE_KERNEL_ERROR_ILLEGAL_THID;
}
u32 error;
Thread *t = kernelObjects.Get<Thread>(uid, error);
if (t)
{
if (!t->isWaitingFor(WAITTYPE_SLEEP, 0)) {
t->nt.wakeupCount++;
DEBUG_LOG(SCEKERNEL,"sceKernelWakeupThread(%i) - wakeupCount incremented to %i", uid, t->nt.wakeupCount);
} else {
VERBOSE_LOG(SCEKERNEL,"sceKernelWakeupThread(%i) - woke thread at %i", uid, t->nt.wakeupCount);
__KernelResumeThreadFromWait(uid, 0);
hleReSchedule("thread woken up");
}
return 0;
}
else {
ERROR_LOG(SCEKERNEL,"sceKernelWakeupThread(%i) - bad thread id", uid);
return error;
}
}
int sceKernelCancelWakeupThread(SceUID uid)
{
u32 error;
if (uid == 0) uid = __KernelGetCurThread();
Thread *t = kernelObjects.Get<Thread>(uid, error);
if (t)
{
int wCount = t->nt.wakeupCount;
t->nt.wakeupCount = 0;
DEBUG_LOG(SCEKERNEL,"sceKernelCancelWakeupThread(%i) - wakeupCount reset from %i", uid, wCount);
return wCount;
}
else {
ERROR_LOG(SCEKERNEL,"sceKernelCancelWakeupThread(%i) - bad thread id", uid);
return error;
}
}
static int __KernelSleepThread(bool doCallbacks) {
Thread *thread = __GetCurrentThread();
if (!thread) {
ERROR_LOG(SCEKERNEL, "sceKernelSleepThread*(): bad current thread");
return -1;
}
if (thread->nt.wakeupCount > 0) {
thread->nt.wakeupCount--;
DEBUG_LOG(SCEKERNEL, "sceKernelSleepThread() - wakeupCount decremented to %i", thread->nt.wakeupCount);
} else {
VERBOSE_LOG(SCEKERNEL, "sceKernelSleepThread()");
__KernelWaitCurThread(WAITTYPE_SLEEP, 0, 0, 0, doCallbacks, "thread slept");
}
return 0;
}
int sceKernelSleepThread()
{
return __KernelSleepThread(false);
}
//the homebrew PollCallbacks
int sceKernelSleepThreadCB()
{
VERBOSE_LOG(SCEKERNEL, "sceKernelSleepThreadCB()");
return __KernelSleepThread(true);
}
int sceKernelWaitThreadEnd(SceUID threadID, u32 timeoutPtr)
{
DEBUG_LOG(SCEKERNEL, "sceKernelWaitThreadEnd(%i, %08x)", threadID, timeoutPtr);
if (threadID == 0 || threadID == currentThread)
return SCE_KERNEL_ERROR_ILLEGAL_THID;
if (!__KernelIsDispatchEnabled())
return SCE_KERNEL_ERROR_CAN_NOT_WAIT;
if (__IsInInterrupt())
return SCE_KERNEL_ERROR_ILLEGAL_CONTEXT;
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
{
if (t->nt.status != THREADSTATUS_DORMANT)
{
if (Memory::IsValidAddress(timeoutPtr))
__KernelScheduleThreadEndTimeout(currentThread, threadID, Memory::Read_U32(timeoutPtr));
if (std::find(t->waitingThreads.begin(), t->waitingThreads.end(), currentThread) == t->waitingThreads.end())
t->waitingThreads.push_back(currentThread);
__KernelWaitCurThread(WAITTYPE_THREADEND, threadID, 0, timeoutPtr, false, "thread wait end");
}
return t->nt.exitStatus;
}
else
{
ERROR_LOG(SCEKERNEL, "sceKernelWaitThreadEnd - bad thread %i", threadID);
return error;
}
}
int sceKernelWaitThreadEndCB(SceUID threadID, u32 timeoutPtr)
{
DEBUG_LOG(SCEKERNEL, "sceKernelWaitThreadEndCB(%i, 0x%X)", threadID, timeoutPtr);
if (threadID == 0 || threadID == currentThread)
return SCE_KERNEL_ERROR_ILLEGAL_THID;
if (!__KernelIsDispatchEnabled())
return SCE_KERNEL_ERROR_CAN_NOT_WAIT;
if (__IsInInterrupt())
return SCE_KERNEL_ERROR_ILLEGAL_CONTEXT;
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
{
if (t->nt.status != THREADSTATUS_DORMANT)
{
if (Memory::IsValidAddress(timeoutPtr))
__KernelScheduleThreadEndTimeout(currentThread, threadID, Memory::Read_U32(timeoutPtr));
if (std::find(t->waitingThreads.begin(), t->waitingThreads.end(), currentThread) == t->waitingThreads.end())
t->waitingThreads.push_back(currentThread);
__KernelWaitCurThread(WAITTYPE_THREADEND, threadID, 0, timeoutPtr, true, "thread wait end");
}
else
hleCheckCurrentCallbacks();
return t->nt.exitStatus;
}
else
{
ERROR_LOG(SCEKERNEL, "sceKernelWaitThreadEndCB - bad thread %i", threadID);
return error;
}
}
int sceKernelReleaseWaitThread(SceUID threadID)
{
DEBUG_LOG(SCEKERNEL, "sceKernelReleaseWaitThread(%i)", threadID);
if (__KernelInCallback())
WARN_LOG_REPORT(SCEKERNEL, "UNTESTED sceKernelReleaseWaitThread() might not do the right thing in a callback");
if (threadID == 0 || threadID == currentThread)
return SCE_KERNEL_ERROR_ILLEGAL_THID;
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
{
if (!t->isWaiting())
return SCE_KERNEL_ERROR_NOT_WAIT;
if (t->nt.waitType == WAITTYPE_HLEDELAY)
{
WARN_LOG_REPORT_ONCE(rwt_delay, SCEKERNEL, "sceKernelReleaseWaitThread(): Refusing to wake HLE-delayed thread, right thing to do?");
return SCE_KERNEL_ERROR_NOT_WAIT;
}
if (t->nt.waitType == WAITTYPE_MODULE)
{
WARN_LOG_REPORT_ONCE(rwt_sm, SCEKERNEL, "sceKernelReleaseWaitThread(): Refusing to wake start_module thread, right thing to do?");
return SCE_KERNEL_ERROR_NOT_WAIT;
}
__KernelResumeThreadFromWait(threadID, SCE_KERNEL_ERROR_RELEASE_WAIT);
hleReSchedule("thread released from wait");
return 0;
}
else
{
ERROR_LOG(SCEKERNEL, "sceKernelReleaseWaitThread - bad thread %i", threadID);
return error;
}
}
int sceKernelSuspendThread(SceUID threadID)
{
// TODO: What about interrupts/callbacks?
if (threadID == 0 || threadID == currentThread)
{
ERROR_LOG(SCEKERNEL, "sceKernelSuspendThread(%d): cannot suspend current thread", threadID);
return SCE_KERNEL_ERROR_ILLEGAL_THID;
}
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
{
if (t->isStopped())
{
ERROR_LOG(SCEKERNEL, "sceKernelSuspendThread(%d): thread not running", threadID);
return SCE_KERNEL_ERROR_DORMANT;
}
if (t->isSuspended())
{
ERROR_LOG(SCEKERNEL, "sceKernelSuspendThread(%d): thread already suspended", threadID);
return SCE_KERNEL_ERROR_SUSPEND;
}
DEBUG_LOG(SCEKERNEL, "sceKernelSuspendThread(%d)", threadID);
if (t->isReady())
__KernelChangeReadyState(t, threadID, false);
t->nt.status = (t->nt.status & ~THREADSTATUS_READY) | THREADSTATUS_SUSPEND;
return 0;
}
else
{
ERROR_LOG(SCEKERNEL, "sceKernelSuspendThread(%d): bad thread", threadID);
return error;
}
}
int sceKernelResumeThread(SceUID threadID)
{
// TODO: What about interrupts/callbacks?
if (threadID == 0 || threadID == currentThread)
{
ERROR_LOG(SCEKERNEL, "sceKernelResumeThread(%d): cannot suspend current thread", threadID);
return SCE_KERNEL_ERROR_ILLEGAL_THID;
}
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadID, error);
if (t)
{
if (!t->isSuspended())
{
ERROR_LOG(SCEKERNEL, "sceKernelResumeThread(%d): thread not suspended", threadID);
return SCE_KERNEL_ERROR_NOT_SUSPEND;
}
DEBUG_LOG(SCEKERNEL, "sceKernelResumeThread(%d)", threadID);
t->nt.status &= ~THREADSTATUS_SUSPEND;
// If it was dormant, waiting, etc. before we don't flip its ready state.
if (t->nt.status == 0)
__KernelChangeReadyState(t, threadID, true);
return 0;
}
else
{
ERROR_LOG(SCEKERNEL, "sceKernelResumeThread(%d): bad thread", threadID);
return error;
}
}
//////////////////////////////////////////////////////////////////////////
// CALLBACKS
//////////////////////////////////////////////////////////////////////////
SceUID sceKernelCreateCallback(const char *name, u32 entrypoint, u32 signalArg)
{
if (!name)
{
WARN_LOG_REPORT(SCEKERNEL, "%08x=sceKernelCreateCallback(): invalid name", SCE_KERNEL_ERROR_ERROR);
return SCE_KERNEL_ERROR_ERROR;
}
if (entrypoint & 0xF0000000)
{
WARN_LOG_REPORT(SCEKERNEL, "%08x=sceKernelCreateCallback(): invalid func %08x", SCE_KERNEL_ERROR_ILLEGAL_ADDR, entrypoint);
return SCE_KERNEL_ERROR_ILLEGAL_ADDR;
}
Callback *cb = new Callback;
SceUID id = kernelObjects.Create(cb);
strncpy(cb->nc.name, name, KERNELOBJECT_MAX_NAME_LENGTH);
cb->nc.name[KERNELOBJECT_MAX_NAME_LENGTH] = 0;
cb->nc.size = sizeof(NativeCallback);
cb->nc.entrypoint = entrypoint;
cb->nc.threadId = __KernelGetCurThread();
cb->nc.commonArgument = signalArg;
cb->nc.notifyCount = 0;
cb->nc.notifyArg = 0;
Thread *thread = __GetCurrentThread();
if (thread)
thread->callbacks.push_back(id);
DEBUG_LOG(SCEKERNEL, "%i=sceKernelCreateCallback(name=%s, entry=%08x, callbackArg=%08x)", id, name, entrypoint, signalArg);
return id;
}
int sceKernelDeleteCallback(SceUID cbId)
{
DEBUG_LOG(SCEKERNEL, "sceKernelDeleteCallback(%i)", cbId);
u32 error;
Callback *cb = kernelObjects.Get<Callback>(cbId, error);
if (cb)
{
Thread *thread = kernelObjects.Get<Thread>(cb->nc.threadId, error);
if (thread)
thread->callbacks.erase(std::find(thread->callbacks.begin(), thread->callbacks.end(), cbId), thread->callbacks.end());
if (cb->nc.notifyCount != 0)
readyCallbacksCount--;
return kernelObjects.Destroy<Callback>(cbId);
}
return error;
}
// Generally very rarely used, but Numblast uses it like candy.
int sceKernelNotifyCallback(SceUID cbId, int notifyArg)
{
DEBUG_LOG(SCEKERNEL,"sceKernelNotifyCallback(%i, %i)", cbId, notifyArg);
u32 error;
Callback *cb = kernelObjects.Get<Callback>(cbId, error);
if (cb) {
__KernelNotifyCallback(cbId, notifyArg);
return 0;
} else {
ERROR_LOG(SCEKERNEL, "sceKernelCancelCallback(%i) - bad cbId", cbId);
return error;
}
}
int sceKernelCancelCallback(SceUID cbId)
{
DEBUG_LOG(SCEKERNEL, "sceKernelCancelCallback(%i)", cbId);
u32 error;
Callback *cb = kernelObjects.Get<Callback>(cbId, error);
if (cb) {
// This just resets the notify count.
cb->nc.notifyArg = 0;
return 0;
} else {
ERROR_LOG(SCEKERNEL, "sceKernelCancelCallback(%i) - bad cbId", cbId);
return error;
}
}
int sceKernelGetCallbackCount(SceUID cbId)
{
u32 error;
Callback *cb = kernelObjects.Get<Callback>(cbId, error);
if (cb) {
return cb->nc.notifyCount;
} else {
ERROR_LOG(SCEKERNEL, "sceKernelGetCallbackCount(%i) - bad cbId", cbId);
return error;
}
}
int sceKernelReferCallbackStatus(SceUID cbId, u32 statusAddr)
{
u32 error;
Callback *c = kernelObjects.Get<Callback>(cbId, error);
if (c) {
DEBUG_LOG(SCEKERNEL, "sceKernelReferCallbackStatus(%i, %08x)", cbId, statusAddr);
if (Memory::IsValidAddress(statusAddr) && Memory::Read_U32(statusAddr) != 0) {
Memory::WriteStruct(statusAddr, &c->nc);
}
return 0;
} else {
ERROR_LOG(SCEKERNEL, "sceKernelReferCallbackStatus(%i, %08x) - bad cbId", cbId, statusAddr);
return error;
}
}
u32 sceKernelExtendThreadStack(u32 size, u32 entryAddr, u32 entryParameter)
{
if (size < 512)
{
ERROR_LOG_REPORT(SCEKERNEL, "sceKernelExtendThreadStack(%08x, %08x, %08x) - stack size too small", size, entryAddr, entryParameter);
return SCE_KERNEL_ERROR_ILLEGAL_STACK_SIZE;
}
Thread *thread = __GetCurrentThread();
if (!thread)
{
ERROR_LOG_REPORT(SCEKERNEL, "sceKernelExtendThreadStack(%08x, %08x, %08x) - not on a thread?", size, entryAddr, entryParameter);
return -1;
}
if (!thread->PushExtendedStack(size))
{
ERROR_LOG_REPORT(SCEKERNEL, "sceKernelExtendThreadStack(%08x, %08x, %08x) - could not allocate new stack", size, entryAddr, entryParameter);
return SCE_KERNEL_ERROR_NO_MEMORY;
}
// The stack has been changed now, so it's do or die time.
DEBUG_LOG(SCEKERNEL, "sceKernelExtendThreadStack(%08x, %08x, %08x)", size, entryAddr, entryParameter);
// Push the old SP, RA, and PC onto the stack (so we can restore them later.)
Memory::Write_U32(currentMIPS->r[MIPS_REG_RA], thread->currentStack.end - 4);
Memory::Write_U32(currentMIPS->r[MIPS_REG_SP], thread->currentStack.end - 8);
Memory::Write_U32(currentMIPS->pc, thread->currentStack.end - 12);
currentMIPS->pc = entryAddr;
currentMIPS->r[MIPS_REG_A0] = entryParameter;
currentMIPS->r[MIPS_REG_RA] = extendReturnHackAddr;
// Stack should stay aligned even though we saved only 3 regs.
currentMIPS->r[MIPS_REG_SP] = thread->currentStack.end - 0x10;
hleSkipDeadbeef();
return 0;
}
void __KernelReturnFromExtendStack()
{
hleSkipDeadbeef();
Thread *thread = __GetCurrentThread();
if (!thread)
{
ERROR_LOG_REPORT(SCEKERNEL, "__KernelReturnFromExtendStack() - not on a thread?");
return;
}
// Grab the saved regs at the top of the stack.
u32 restoreRA = Memory::Read_U32(thread->currentStack.end - 4);
u32 restoreSP = Memory::Read_U32(thread->currentStack.end - 8);
u32 restorePC = Memory::Read_U32(thread->currentStack.end - 12);
if (!thread->PopExtendedStack())
{
ERROR_LOG_REPORT(SCEKERNEL, "__KernelReturnFromExtendStack() - no stack to restore?");
return;
}
DEBUG_LOG(SCEKERNEL, "__KernelReturnFromExtendStack()");
currentMIPS->r[MIPS_REG_RA] = restoreRA;
currentMIPS->r[MIPS_REG_SP] = restoreSP;
currentMIPS->pc = restorePC;
// We retain whatever is in v0/v1, it gets passed on to the caller of sceKernelExtendThreadStack().
}
void ActionAfterMipsCall::run(MipsCall &call) {
u32 error;
Thread *thread = kernelObjects.Get<Thread>(threadID, error);
if (thread) {
__KernelChangeReadyState(thread, threadID, (status & THREADSTATUS_READY) != 0);
thread->nt.status = status;
thread->nt.waitType = waitType;
thread->nt.waitID = waitID;
thread->waitInfo = waitInfo;
thread->isProcessingCallbacks = isProcessingCallbacks;
thread->currentCallbackId = currentCallbackId;
}
if (chainedAction) {
chainedAction->run(call);
delete chainedAction;
}
}
void Thread::setReturnValue(u32 retval)
{
if (GetUID() == currentThread) {
currentMIPS->r[MIPS_REG_V0] = retval;
} else {
context.r[MIPS_REG_V0] = retval;
}
}
void Thread::setReturnValue(u64 retval)
{
if (GetUID() == currentThread) {
currentMIPS->r[MIPS_REG_V0] = retval & 0xFFFFFFFF;
currentMIPS->r[MIPS_REG_V1] = (retval >> 32) & 0xFFFFFFFF;
} else {
context.r[MIPS_REG_V0] = retval & 0xFFFFFFFF;
context.r[MIPS_REG_V1] = (retval >> 32) & 0xFFFFFFFF;
}
}
void Thread::resumeFromWait()
{
nt.status &= ~THREADSTATUS_WAIT;
if (!(nt.status & (THREADSTATUS_WAITSUSPEND | THREADSTATUS_DORMANT | THREADSTATUS_DEAD)))
__KernelChangeReadyState(this, GetUID(), true);
// Non-waiting threads do not process callbacks.
isProcessingCallbacks = false;
}
bool Thread::isWaitingFor(WaitType type, int id) const
{
if (nt.status & THREADSTATUS_WAIT)
return nt.waitType == type && nt.waitID == id;
return false;
}
int Thread::getWaitID(WaitType type) const
{
if (nt.waitType == type)
return nt.waitID;
return 0;
}
ThreadWaitInfo Thread::getWaitInfo() const
{
return waitInfo;
}
void __KernelSwitchContext(Thread *target, const char *reason)
{
u32 oldPC = 0;
SceUID oldUID = 0;
const char *oldName = hleCurrentThreadName != NULL ? hleCurrentThreadName : "(none)";
Thread *cur = __GetCurrentThread();
if (cur) // It might just have been deleted.
{
__KernelSaveContext(&cur->context, (cur->nt.attr & PSP_THREAD_ATTR_VFPU) != 0);
oldPC = currentMIPS->pc;
oldUID = cur->GetUID();
// Normally this is taken care of in __KernelNextThread().
if (cur->isRunning())
__KernelChangeReadyState(cur, oldUID, true);
}
if (target)
{
__SetCurrentThread(target, target->GetUID(), target->nt.name);
__KernelChangeReadyState(target, currentThread, false);
target->nt.status = (target->nt.status | THREADSTATUS_RUNNING) & ~THREADSTATUS_READY;
__KernelLoadContext(&target->context, (target->nt.attr & PSP_THREAD_ATTR_VFPU) != 0);
}
else
__SetCurrentThread(NULL, 0, NULL);
const bool fromIdle = oldUID == threadIdleID[0] || oldUID == threadIdleID[1];
const bool toIdle = currentThread == threadIdleID[0] || currentThread == threadIdleID[1];
#if DEBUG_LEVEL <= MAX_LOGLEVEL || DEBUG_LOG == NOTICE_LOG
if (!(fromIdle && toIdle))
{
u64 nowCycles = CoreTiming::GetTicks();
s64 consumedCycles = nowCycles - lastSwitchCycles;
lastSwitchCycles = nowCycles;
DEBUG_LOG(SCEKERNEL, "Context switch: %s -> %s (%i->%i, pc: %08x->%08x, %s) +%lldus",
oldName, hleCurrentThreadName,
oldUID, currentThread,
oldPC, currentMIPS->pc,
reason,
cyclesToUs(consumedCycles));
}
#endif
// Switching threads eats some cycles. This is a low approximation.
if (fromIdle && toIdle) {
// Don't eat any cycles going between idle.
} else if (fromIdle || toIdle) {
currentMIPS->downcount -= 1200;
} else {
currentMIPS->downcount -= 2700;
}
if (target)
{
// No longer waiting.
target->nt.waitType = WAITTYPE_NONE;
target->nt.waitID = 0;
__KernelExecutePendingMipsCalls(target, true);
}
}
void __KernelChangeThreadState(Thread *thread, ThreadStatus newStatus) {
if (!thread || thread->nt.status == newStatus)
return;
if (!dispatchEnabled && thread == __GetCurrentThread() && newStatus != THREADSTATUS_RUNNING) {
ERROR_LOG(SCEKERNEL, "Dispatching suspended, not changing thread state");
return;
}
// TODO: JPSCP has many conditions here, like removing wait timeout actions etc.
// if (thread->nt.status == THREADSTATUS_WAIT && newStatus != THREADSTATUS_WAITSUSPEND) {
__KernelChangeReadyState(thread, thread->GetUID(), (newStatus & THREADSTATUS_READY) != 0);
thread->nt.status = newStatus;
if (newStatus == THREADSTATUS_WAIT) {
if (thread->nt.waitType == WAITTYPE_NONE) {
ERROR_LOG(SCEKERNEL, "Waittype none not allowed here");
}
// Schedule deletion of stopped threads here. if (thread->isStopped())
}
}
bool __CanExecuteCallbackNow(Thread *thread) {
return g_inCbCount == 0;
}
void __KernelCallAddress(Thread *thread, u32 entryPoint, Action *afterAction, const u32 args[], int numargs, bool reschedAfter, SceUID cbId)
{
hleSkipDeadbeef();
_dbg_assert_msg_(SCEKERNEL, numargs <= 6, "MipsCalls can only take 6 args.");
if (thread) {
ActionAfterMipsCall *after = (ActionAfterMipsCall *) __KernelCreateAction(actionAfterMipsCall);
after->chainedAction = afterAction;
after->threadID = thread->GetUID();
after->status = thread->nt.status;
after->waitType = (WaitType)(u32)thread->nt.waitType;
after->waitID = thread->nt.waitID;
after->waitInfo = thread->waitInfo;
after->isProcessingCallbacks = thread->isProcessingCallbacks;
after->currentCallbackId = thread->currentCallbackId;
afterAction = after;
if (thread->nt.waitType != WAITTYPE_NONE) {
// If it's a callback, tell the wait to stop.
if (cbId > 0) {
if (waitTypeFuncs[thread->nt.waitType].beginFunc != NULL) {
waitTypeFuncs[thread->nt.waitType].beginFunc(after->threadID, thread->currentCallbackId);
} else {
ERROR_LOG_REPORT(HLE, "Missing begin/restore funcs for wait type %d", thread->nt.waitType);
}
}
// Release thread from waiting
thread->nt.waitType = WAITTYPE_NONE;
}
__KernelChangeThreadState(thread, THREADSTATUS_READY);
}
MipsCall *call = new MipsCall();
call->entryPoint = entryPoint;
for (int i = 0; i < numargs; i++) {
call->args[i] = args[i];
}
call->numArgs = (int) numargs;
call->doAfter = afterAction;
call->tag = "callAddress";
call->cbId = cbId;
u32 callId = mipsCalls.add(call);
bool called = false;
if (!thread || thread == __GetCurrentThread()) {
if (__CanExecuteCallbackNow(thread)) {
thread = __GetCurrentThread();
__KernelChangeThreadState(thread, THREADSTATUS_RUNNING);
__KernelExecuteMipsCallOnCurrentThread(callId, reschedAfter);
called = true;
}
}
if (!called) {
if (thread) {
DEBUG_LOG(SCEKERNEL, "Making mipscall pending on thread");
thread->pendingMipsCalls.push_back(callId);
} else {
WARN_LOG(SCEKERNEL, "Ignoring mispcall on NULL/deleted thread");
}
}
}
void __KernelDirectMipsCall(u32 entryPoint, Action *afterAction, u32 args[], int numargs, bool reschedAfter)
{
__KernelCallAddress(__GetCurrentThread(), entryPoint, afterAction, args, numargs, reschedAfter, 0);
}
void __KernelExecuteMipsCallOnCurrentThread(u32 callId, bool reschedAfter)
{
Thread *cur = __GetCurrentThread();
if (cur == NULL)
{
ERROR_LOG(SCEKERNEL, "__KernelExecuteMipsCallOnCurrentThread(): Bad current thread");
return;
}
if (g_inCbCount > 0) {
WARN_LOG_REPORT(SCEKERNEL, "__KernelExecuteMipsCallOnCurrentThread(): Already in a callback!");
}
DEBUG_LOG(SCEKERNEL, "Executing mipscall %i", callId);
MipsCall *call = mipsCalls.get(callId);
// Save the few regs that need saving
call->savedPc = currentMIPS->pc;
call->savedRa = currentMIPS->r[MIPS_REG_RA];
call->savedV0 = currentMIPS->r[MIPS_REG_V0];
call->savedV1 = currentMIPS->r[MIPS_REG_V1];
call->savedId = cur->currentMipscallId;
call->reschedAfter = reschedAfter;
// Set up the new state
currentMIPS->pc = call->entryPoint;
currentMIPS->r[MIPS_REG_RA] = __KernelMipsCallReturnAddress();
cur->currentMipscallId = callId;
for (int i = 0; i < call->numArgs; i++) {
currentMIPS->r[MIPS_REG_A0 + i] = call->args[i];
}
if (call->cbId != 0)
g_inCbCount++;
currentCallbackThreadID = currentThread;
}
void __KernelReturnFromMipsCall()
{
hleSkipDeadbeef();
Thread *cur = __GetCurrentThread();
if (cur == NULL)
{
ERROR_LOG(SCEKERNEL, "__KernelReturnFromMipsCall(): Bad current thread");
return;
}
u32 callId = cur->currentMipscallId;
MipsCall *call = mipsCalls.pop(callId);
// Value returned by the callback function
u32 retVal = currentMIPS->r[MIPS_REG_V0];
DEBUG_LOG(SCEKERNEL,"__KernelReturnFromMipsCall(), returned %08x", retVal);
// Should also save/restore wait state here.
if (call->doAfter)
{
call->doAfter->run(*call);
delete call->doAfter;
}
currentMIPS->pc = call->savedPc;
currentMIPS->r[MIPS_REG_RA] = call->savedRa;
currentMIPS->r[MIPS_REG_V0] = call->savedV0;
currentMIPS->r[MIPS_REG_V1] = call->savedV1;
cur->currentMipscallId = call->savedId;
// If the thread called ExitDelete, we might've already decreased g_inCbCount.
if (call->cbId != 0 && g_inCbCount > 0) {
g_inCbCount--;
}
currentCallbackThreadID = 0;
if (cur->nt.waitType != WAITTYPE_NONE)
{
if (call->cbId > 0)
{
if (waitTypeFuncs[cur->nt.waitType].endFunc != NULL)
waitTypeFuncs[cur->nt.waitType].endFunc(cur->GetUID(), cur->currentCallbackId);
else
ERROR_LOG_REPORT(HLE, "Missing begin/restore funcs for wait type %d", cur->nt.waitType);
}
}
// yeah! back in the real world, let's keep going. Should we process more callbacks?
if (!__KernelExecutePendingMipsCalls(cur, call->reschedAfter))
{
// Sometimes, we want to stay on the thread.
int threadReady = cur->nt.status & (THREADSTATUS_READY | THREADSTATUS_RUNNING);
if (call->reschedAfter || threadReady == 0)
__KernelReSchedule("return from callback");
}
delete call;
}
// First arg must be current thread, passed to avoid perf cost of a lookup.
bool __KernelExecutePendingMipsCalls(Thread *thread, bool reschedAfter)
{
_dbg_assert_msg_(SCEKERNEL, thread->GetUID() == __KernelGetCurThread(), "__KernelExecutePendingMipsCalls() should be called only with the current thread.");
if (thread->pendingMipsCalls.empty()) {
// Nothing to do
return false;
}
if (__CanExecuteCallbackNow(thread))
{
// Pop off the first pending mips call
u32 callId = thread->pendingMipsCalls.front();
thread->pendingMipsCalls.pop_front();
__KernelExecuteMipsCallOnCurrentThread(callId, reschedAfter);
return true;
}
return false;
}
// Executes the callback, when it next is context switched to.
void __KernelRunCallbackOnThread(SceUID cbId, Thread *thread, bool reschedAfter)
{
u32 error;
Callback *cb = kernelObjects.Get<Callback>(cbId, error);
if (!cb) {
ERROR_LOG(SCEKERNEL, "__KernelRunCallbackOnThread: Bad cbId %i", cbId);
return;
}
DEBUG_LOG(SCEKERNEL, "__KernelRunCallbackOnThread: Turning callback %i into pending mipscall", cbId);
// Alright, we're on the right thread
// Should save/restore wait state?
const u32 args[] = {(u32) cb->nc.notifyCount, (u32) cb->nc.notifyArg, cb->nc.commonArgument};
// Clear the notify count / arg
cb->nc.notifyCount = 0;
cb->nc.notifyArg = 0;
ActionAfterCallback *action = (ActionAfterCallback *) __KernelCreateAction(actionAfterCallback);
if (action != NULL)
action->setCallback(cbId);
else
ERROR_LOG(SCEKERNEL, "Something went wrong creating a restore action for a callback.");
__KernelCallAddress(thread, cb->nc.entrypoint, action, args, 3, reschedAfter, cbId);
}
void ActionAfterCallback::run(MipsCall &call) {
if (cbId != -1) {
u32 error;
Callback *cb = kernelObjects.Get<Callback>(cbId, error);
if (cb)
{
Thread *t = kernelObjects.Get<Thread>(cb->nc.threadId, error);
if (t)
{
// Check for other callbacks to run (including ones this callback scheduled.)
__KernelCheckThreadCallbacks(t, true);
}
DEBUG_LOG(SCEKERNEL, "Left callback %i - %s", cbId, cb->nc.name);
// Callbacks that don't return 0 are deleted. But should this be done here?
if (currentMIPS->r[MIPS_REG_V0] != 0)
{
DEBUG_LOG(SCEKERNEL, "ActionAfterCallback::run(): Callback returned non-zero, gets deleted!");
kernelObjects.Destroy<Callback>(cbId);
}
}
}
}
bool __KernelCurHasReadyCallbacks() {
if (readyCallbacksCount == 0) {
return false;
}
Thread *thread = __GetCurrentThread();
u32 error;
for (auto it = thread->callbacks.begin(), end = thread->callbacks.end(); it != end; ++it) {
Callback *callback = kernelObjects.Get<Callback>(*it, error);
if (callback && callback->nc.notifyCount != 0) {
return true;
}
}
return false;
}
// Check callbacks on the current thread only.
// Returns true if any callbacks were processed on the current thread.
bool __KernelCheckThreadCallbacks(Thread *thread, bool force) {
if (!thread || (!thread->isProcessingCallbacks && !force)) {
return false;
}
if (!thread->callbacks.empty()) {
u32 error;
for (auto it = thread->callbacks.begin(), end = thread->callbacks.end(); it != end; ++it) {
Callback *callback = kernelObjects.Get<Callback>(*it, error);
if (callback && callback->nc.notifyCount != 0) {
__KernelRunCallbackOnThread(callback->GetUID(), thread, !force);
readyCallbacksCount--;
return true;
}
}
}
return false;
}
// Checks for callbacks on all threads
bool __KernelCheckCallbacks() {
// Let's not check every thread all the time, callbacks are fairly uncommon.
if (readyCallbacksCount == 0) {
return false;
}
if (readyCallbacksCount < 0) {
ERROR_LOG_REPORT(SCEKERNEL, "readyCallbacksCount became negative: %i", readyCallbacksCount);
}
if (__IsInInterrupt() || !__KernelIsDispatchEnabled() || __KernelInCallback()) {
// TODO: Technically, other callbacks can run when a thread within a callback is waiting.
// However, callbacks that were pending before the current callback started won't be run.
// This is pretty uncommon, and not yet handled correctly.
return false;
}
bool processed = false;
u32 error;
for (std::vector<SceUID>::iterator iter = threadqueue.begin(); iter != threadqueue.end(); iter++) {
Thread *thread = kernelObjects.Get<Thread>(*iter, error);
if (thread && __KernelCheckThreadCallbacks(thread, false)) {
processed = true;
}
}
if (processed) {
return __KernelExecutePendingMipsCalls(__GetCurrentThread(), true);
}
return false;
}
bool __KernelForceCallbacks()
{
// Let's not check every thread all the time, callbacks are fairly uncommon.
if (readyCallbacksCount == 0) {
return false;
}
if (readyCallbacksCount < 0) {
ERROR_LOG_REPORT(SCEKERNEL, "readyCallbacksCount became negative: %i", readyCallbacksCount);
}
Thread *curThread = __GetCurrentThread();
bool callbacksProcessed = __KernelCheckThreadCallbacks(curThread, true);
if (callbacksProcessed)
__KernelExecutePendingMipsCalls(curThread, false);
return callbacksProcessed;
}
// Not wrapped because it has special return logic.
void sceKernelCheckCallback()
{
// Start with yes.
RETURN(1);
bool callbacksProcessed = __KernelForceCallbacks();
if (callbacksProcessed) {
DEBUG_LOG(SCEKERNEL, "sceKernelCheckCallback() - processed a callback.");
// The RETURN(1) above is still active here, unless __KernelForceCallbacks changed it.
} else {
RETURN(0);
}
hleEatCycles(230);
}
bool __KernelInCallback()
{
return (g_inCbCount != 0);
}
void __KernelNotifyCallback(SceUID cbId, int notifyArg)
{
u32 error;
Callback *cb = kernelObjects.Get<Callback>(cbId, error);
if (!cb) {
// Yeah, we're screwed, this shouldn't happen.
ERROR_LOG(SCEKERNEL, "__KernelNotifyCallback - invalid callback %08x", cbId);
return;
}
if (cb->nc.notifyCount == 0) {
readyCallbacksCount++;
}
cb->nc.notifyCount++;
cb->nc.notifyArg = notifyArg;
}
void __KernelRegisterWaitTypeFuncs(WaitType type, WaitBeginCallbackFunc beginFunc, WaitEndCallbackFunc endFunc)
{
waitTypeFuncs[type].beginFunc = beginFunc;
waitTypeFuncs[type].endFunc = endFunc;
}
std::vector<DebugThreadInfo> GetThreadsInfo()
{
std::vector<DebugThreadInfo> threadList;
u32 error;
for (std::vector<SceUID>::iterator iter = threadqueue.begin(); iter != threadqueue.end(); iter++)
{
Thread *t = kernelObjects.Get<Thread>(*iter, error);
if (!t)
continue;
DebugThreadInfo info;
info.id = *iter;
strncpy(info.name,t->GetName(),KERNELOBJECT_MAX_NAME_LENGTH);
info.name[KERNELOBJECT_MAX_NAME_LENGTH] = 0;
info.status = t->nt.status;
info.entrypoint = t->nt.entrypoint;
info.initialStack = t->nt.initialStack;
info.stackSize = (u32)t->nt.stackSize;
info.priority = t->nt.currentPriority;
info.waitType = (WaitType)(u32)t->nt.waitType;
if(*iter == currentThread)
info.curPC = currentMIPS->pc;
else
info.curPC = t->context.pc;
info.isCurrent = (*iter == currentThread);
threadList.push_back(info);
}
return threadList;
}
void __KernelChangeThreadState(SceUID threadId, ThreadStatus newStatus)
{
u32 error;
Thread *t = kernelObjects.Get<Thread>(threadId, error);
if (!t)
return;
__KernelChangeThreadState(t, newStatus);
}
int sceKernelRegisterExitCallback(SceUID cbId)
{
u32 error;
Callback *cb = kernelObjects.Get<Callback>(cbId, error);
if (!cb)
{
WARN_LOG(SCEKERNEL, "sceKernelRegisterExitCallback(%i): invalid callback id", cbId);
if (sceKernelGetCompiledSdkVersion() >= 0x3090500)
return SCE_KERNEL_ERROR_ILLEGAL_ARGUMENT;
return 0;
}
DEBUG_LOG(SCEKERNEL, "sceKernelRegisterExitCallback(%i)", cbId);
registeredExitCbId = cbId;
return 0;
}
int LoadExecForUser_362A956B()
{
WARN_LOG_REPORT(SCEKERNEL, "LoadExecForUser_362A956B()");
u32 error;
Callback *cb = kernelObjects.Get<Callback>(registeredExitCbId, error);
if (!cb) {
WARN_LOG(SCEKERNEL, "LoadExecForUser_362A956B() : registeredExitCbId not found 0x%x", registeredExitCbId);
return SCE_KERNEL_ERROR_UNKNOWN_CBID;
}
int cbArg = cb->nc.commonArgument;
if (!Memory::IsValidAddress(cbArg)) {
WARN_LOG(SCEKERNEL, "LoadExecForUser_362A956B() : invalid address for cbArg (0x%08X)", cbArg);
return SCE_KERNEL_ERROR_ILLEGAL_ADDR;
}
u32 unknown1 = Memory::Read_U32(cbArg - 8);
if (unknown1 >= 4) {
WARN_LOG(SCEKERNEL, "LoadExecForUser_362A956B() : invalid value unknown1 (0x%08X)", unknown1);
return SCE_KERNEL_ERROR_ILLEGAL_ARGUMENT;
}
u32 parameterArea = Memory::Read_U32(cbArg - 4);
if (!Memory::IsValidAddress(parameterArea)) {
WARN_LOG(SCEKERNEL, "LoadExecForUser_362A956B() : invalid address for parameterArea on userMemory (0x%08X)", parameterArea);
return SCE_KERNEL_ERROR_ILLEGAL_ADDR;
}
u32 size = Memory::Read_U32(parameterArea);
if (size < 12) {
WARN_LOG(SCEKERNEL, "LoadExecForUser_362A956B() : invalid parameterArea size %d", size);
return SCE_KERNEL_ERROR_ILLEGAL_SIZE;
}
Memory::Write_U32(0, parameterArea + 4);
Memory::Write_U32(-1, parameterArea + 8);
return 0;
}
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