Merge pull request #71 from georgemoralis/undertale

Undertale-mutexes

src/core/hle/libraries/libkernel/libkernel.cpp

@@ -1,19 +1,21 @@
-#include "common/log.h"
+#include "core/hle/libraries/libkernel/libkernel.h"
+
 #include "common/debug.h"
+#include "common/log.h"
 #include "common/singleton.h"
-#include "core/loader/elf.h"
 #include "core/hle/kernel/Objects/physical_memory.h"
 #include "core/hle/kernel/cpu_management.h"
 #include "core/hle/kernel/event_queues.h"
 #include "core/hle/kernel/memory_management.h"
-#include "core/hle/libraries/libkernel/libkernel.h"
 #include "core/hle/libraries/libkernel/file_system.h"
 #include "core/hle/libraries/libkernel/time_management.h"
 #include "core/hle/libraries/libs.h"
+#include "core/loader/elf.h"
 
 #ifdef _WIN64
 #include <windows.h>
 #endif
+#include "thread_management.h"
 
 namespace Core::Libraries::LibKernel {
 
@@ -24,13 +26,12 @@ int32_t PS4_SYSV_ABI sceKernelReleaseDirectMemory(off_t start, size_t len) {
     return 0;
 }
 
-static PS4_SYSV_ABI void stack_chk_fail() {
-    BREAKPOINT();
-}
+static PS4_SYSV_ABI void stack_chk_fail() { BREAKPOINT(); }
 
-int PS4_SYSV_ABI sceKernelMunmap(void* addr, size_t len) {
-    BREAKPOINT();
-}
+int PS4_SYSV_ABI sceKernelMunmap(void* addr, size_t len) { BREAKPOINT(); }
+
+static thread_local int libc_error;
+int* PS4_SYSV_ABI __Error() { return &libc_error; }
 
 void LibKernel_Register(Loader::SymbolsResolver* sym) {
     // obj
@@ -47,9 +48,11 @@ void LibKernel_Register(Loader::SymbolsResolver* sym) {
     // misc
     LIB_FUNCTION("WslcK1FQcGI", "libkernel", 1, "libkernel", 1, 1, Kernel::sceKernelIsNeoMode);
     LIB_FUNCTION("Ou3iL1abvng", "libkernel", 1, "libkernel", 1, 1, stack_chk_fail);
-    
+    LIB_FUNCTION("9BcDykPmo1I", "libkernel", 1, "libkernel", 1, 1, __Error);
+
     Core::Libraries::LibKernel::fileSystemSymbolsRegister(sym);
     Core::Libraries::LibKernel::timeSymbolsRegister(sym);
+    Core::Libraries::LibKernel::pthreadSymbolsRegister(sym);
 }
 
-} // namespace Core::Libraries::LibKernel
+}  // namespace Core::Libraries::LibKernel

src/core/hle/libraries/libkernel/libkernel.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <sys/types.h>
+
 #include "common/types.h"
 
 namespace Core::Loader {
@@ -10,7 +11,8 @@ class SymbolsResolver;
 namespace Core::Libraries::LibKernel {
 
 int32_t PS4_SYSV_ABI sceKernelReleaseDirectMemory(off_t start, size_t len);
+int* PS4_SYSV_ABI __Error();
 
 void LibKernel_Register(Loader::SymbolsResolver* sym);
 
-} // namespace Core::Libraries::LibKernel
+}  // namespace Core::Libraries::LibKernel

src/core/hle/libraries/libkernel/thread_management.cpp

@@ -0,0 +1,300 @@
+#include "core/hle/libraries/libkernel/thread_management.h"
+
+#include <core/hle/libraries/libs.h>
+
+#include "common/debug.h"
+#include "common/log.h"
+#include "core/hle/error_codes.h"
+
+namespace Core::Libraries::LibKernel {
+
+thread_local PthreadInternal g_pthread_self{};
+PThreadCxt* g_pthread_cxt = nullptr;
+
+constexpr bool log_pthread_file = true;  // disable it to disable logging
+
+void init_pthreads() {
+    g_pthread_cxt = new PThreadCxt{};
+    ScePthreadMutexattr default_mutexattr = nullptr;
+    scePthreadMutexattrInit(&default_mutexattr);
+    g_pthread_cxt->setDefaultMutexattr(default_mutexattr);
+}
+
+void pthreadInitSelfMainThread() {
+    scePthreadAttrInit(&g_pthread_self.attr);
+    g_pthread_self.pth = pthread_self();
+    g_pthread_self.name = "Main_Thread";
+}
+
+int PS4_SYSV_ABI scePthreadAttrInit(ScePthreadAttr* attr) {
+    *attr = new PthreadAttrInternal{};
+
+    int result = pthread_attr_init(&(*attr)->pth_attr);
+
+    (*attr)->affinity = 0x7f;
+    (*attr)->guard_size = 0x1000;
+
+    SceKernelSchedParam param{};
+    param.sched_priority = 700;
+
+    result = (result == 0 ? scePthreadAttrSetinheritsched(attr, 4) : result);
+    result = (result == 0 ? scePthreadAttrSetschedparam(attr, &param) : result);
+    result = (result == 0 ? scePthreadAttrSetschedpolicy(attr, SCHED_OTHER) : result);
+    result = (result == 0 ? scePthreadAttrSetdetachstate(attr, PTHREAD_CREATE_JOINABLE) : result);
+
+    switch (result) {
+        case 0: return SCE_OK;
+        case ENOMEM: return SCE_KERNEL_ERROR_ENOMEM;
+        default: return SCE_KERNEL_ERROR_EINVAL;
+    }
+}
+
+int PS4_SYSV_ABI scePthreadAttrSetdetachstate(ScePthreadAttr* attr, int detachstate) {
+    if (attr == nullptr || *attr == nullptr) {
+        return SCE_KERNEL_ERROR_EINVAL;
+    }
+
+    int pstate = PTHREAD_CREATE_JOINABLE;
+    switch (detachstate) {
+        case 0: pstate = PTHREAD_CREATE_JOINABLE; break;
+        case 1: pstate = PTHREAD_CREATE_DETACHED; break;
+        default: LOG_TRACE_IF(log_pthread_file, "scePthreadAttrSetdetachstate invalid detachstate: {}\n", detachstate); std::exit(0);
+    }
+
+    int result = pthread_attr_setdetachstate(&(*attr)->pth_attr, pstate);
+
+    (*attr)->detached = (pstate == PTHREAD_CREATE_DETACHED);
+
+    return result == 0 ? SCE_OK : SCE_KERNEL_ERROR_EINVAL;
+}
+
+int PS4_SYSV_ABI scePthreadAttrSetinheritsched(ScePthreadAttr* attr, int inheritSched) {
+    if (attr == nullptr || *attr == nullptr) {
+        return SCE_KERNEL_ERROR_EINVAL;
+    }
+
+    int pinherit_sched = PTHREAD_INHERIT_SCHED;
+    switch (inheritSched) {
+        case 0: pinherit_sched = PTHREAD_EXPLICIT_SCHED; break;
+        case 4: pinherit_sched = PTHREAD_INHERIT_SCHED; break;
+        default: LOG_TRACE_IF(log_pthread_file, "scePthreadAttrSetinheritsched invalid inheritSched: {}\n", inheritSched); std::exit(0);
+    }
+
+    int result = pthread_attr_setinheritsched(&(*attr)->pth_attr, pinherit_sched);
+
+    return result == 0 ? SCE_OK : SCE_KERNEL_ERROR_EINVAL;
+}
+
+int PS4_SYSV_ABI scePthreadAttrSetschedparam(ScePthreadAttr* attr, const SceKernelSchedParam* param) {
+    if (param == nullptr || attr == nullptr || *attr == nullptr) {
+        return SCE_KERNEL_ERROR_EINVAL;
+    }
+
+    SceKernelSchedParam pparam{};
+    if (param->sched_priority <= 478) {
+        pparam.sched_priority = +2;
+    } else if (param->sched_priority >= 733) {
+        pparam.sched_priority = -2;
+    } else {
+        pparam.sched_priority = 0;
+    }
+
+    int result = pthread_attr_setschedparam(&(*attr)->pth_attr, &pparam);
+
+    return result == 0 ? SCE_OK : SCE_KERNEL_ERROR_EINVAL;
+}
+
+int PS4_SYSV_ABI scePthreadAttrSetschedpolicy(ScePthreadAttr* attr, int policy) {
+    if (attr == nullptr || *attr == nullptr) {
+        return SCE_KERNEL_ERROR_EINVAL;
+    }
+
+    int ppolicy = SCHED_OTHER;  // winpthreads only supports SCHED_OTHER
+    if (policy != SCHED_OTHER) {
+        LOG_TRACE_IF(log_pthread_file, "scePthreadAttrSetschedpolicy policy={} not supported by winpthreads\n", policy);
+    }
+    (*attr)->policy = policy;
+
+    int result = pthread_attr_setschedpolicy(&(*attr)->pth_attr, ppolicy);
+
+    return result == 0 ? SCE_OK : SCE_KERNEL_ERROR_EINVAL;
+}
+
+/****
+ * Mutex calls
+ */
+void* createMutex(void* addr) {
+    if (addr == nullptr || *static_cast<ScePthreadMutex*>(addr) != nullptr) {
+        return addr;
+    }
+    auto vaddr = reinterpret_cast<u64>(addr);
+
+    std::string name = fmt::format("mutex{:#x}", vaddr);
+    scePthreadMutexInit(static_cast<ScePthreadMutex*>(addr), nullptr, name.c_str());
+    return addr;
+}
+
+int PS4_SYSV_ABI scePthreadMutexInit(ScePthreadMutex* mutex, const ScePthreadMutexattr* attr, const char* name) {
+    PRINT_FUNCTION_NAME();
+    if (mutex == nullptr) {
+        return SCE_KERNEL_ERROR_EINVAL;
+    }
+    if (attr == nullptr) {
+        attr = g_pthread_cxt->getDefaultMutexattr();
+    }
+
+    *mutex = new PthreadMutexInternal{};
+    if (name != nullptr) {
+        (*mutex)->name = name;
+    } else {
+        (*mutex)->name = "noname";
+    }
+
+    int result = pthread_mutex_init(&(*mutex)->pth_mutex, &(*attr)->pth_mutex_attr);
+
+    if (name != nullptr) {
+        LOG_INFO_IF(log_pthread_file, "mutex_init name={},result={}\n", name, result);
+    }
+
+    switch (result) {
+        case 0: return SCE_OK;
+        case EAGAIN: return SCE_KERNEL_ERROR_EAGAIN;
+        case EINVAL: return SCE_KERNEL_ERROR_EINVAL;
+        case ENOMEM: return SCE_KERNEL_ERROR_ENOMEM;
+        default: return SCE_KERNEL_ERROR_EINVAL;
+    }
+}
+
+int PS4_SYSV_ABI scePthreadMutexattrInit(ScePthreadMutexattr* attr) {
+    *attr = new PthreadMutexattrInternal{};
+
+    int result = pthread_mutexattr_init(&(*attr)->pth_mutex_attr);
+
+    result = (result == 0 ? scePthreadMutexattrSettype(attr, 1) : result);
+    result = (result == 0 ? scePthreadMutexattrSetprotocol(attr, 0) : result);
+
+    switch (result) {
+        case 0: return SCE_OK;
+        case ENOMEM: return SCE_KERNEL_ERROR_ENOMEM;
+        default: return SCE_KERNEL_ERROR_EINVAL;
+    }
+}
+
+int PS4_SYSV_ABI scePthreadMutexattrSettype(ScePthreadMutexattr* attr, int type) {
+    int ptype = PTHREAD_MUTEX_DEFAULT;
+    switch (type) {
+        case 1: ptype = PTHREAD_MUTEX_ERRORCHECK; break;
+        case 2: ptype = PTHREAD_MUTEX_RECURSIVE; break;
+        case 3:
+        case 4: ptype = PTHREAD_MUTEX_NORMAL; break;
+        default: LOG_TRACE_IF(log_pthread_file, "scePthreadMutexattrSettype invalid type: {}\n", type); std::exit(0);
+    }
+
+    int result = pthread_mutexattr_settype(&(*attr)->pth_mutex_attr, ptype);
+
+    return result == 0 ? SCE_OK : SCE_KERNEL_ERROR_EINVAL;
+}
+
+int PS4_SYSV_ABI scePthreadMutexattrSetprotocol(ScePthreadMutexattr* attr, int protocol) {
+    int pprotocol = PTHREAD_PRIO_NONE;
+    switch (protocol) {
+        case 0: pprotocol = PTHREAD_PRIO_NONE; break;
+        case 1: pprotocol = PTHREAD_PRIO_INHERIT; break;
+        case 2: pprotocol = PTHREAD_PRIO_PROTECT; break;
+        default: LOG_TRACE_IF(log_pthread_file, "scePthreadMutexattrSetprotocol invalid protocol: {}\n", protocol); std::exit(0);
+    }
+
+    int result = 0;  // pthread_mutexattr_setprotocol(&(*attr)->p, pprotocol); //it appears that pprotocol has issues in winpthreads
+    (*attr)->pprotocol = pprotocol;
+
+    return result == 0 ? SCE_OK : SCE_KERNEL_ERROR_EINVAL;
+}
+int PS4_SYSV_ABI scePthreadMutexLock(ScePthreadMutex* mutex) {
+    PRINT_FUNCTION_NAME();
+    mutex = static_cast<ScePthreadMutex*>(createMutex(mutex));
+
+    if (mutex == nullptr) {
+        return SCE_KERNEL_ERROR_EINVAL;
+    }
+
+    int result = pthread_mutex_lock(&(*mutex)->pth_mutex);
+    LOG_INFO_IF(log_pthread_file, "scePthreadMutexLock name={} result={}\n", (*mutex)->name, result);
+    switch (result) {
+        case 0: return SCE_OK;
+        case EAGAIN: return SCE_KERNEL_ERROR_EAGAIN;
+        case EINVAL: return SCE_KERNEL_ERROR_EINVAL;
+        case EDEADLK: return SCE_KERNEL_ERROR_EDEADLK;
+        default: return SCE_KERNEL_ERROR_EINVAL;
+    }
+}
+int PS4_SYSV_ABI scePthreadMutexUnlock(ScePthreadMutex* mutex) {
+    PRINT_FUNCTION_NAME();
+    mutex = static_cast<ScePthreadMutex*>(createMutex(mutex));
+    if (mutex == nullptr) {
+        return SCE_KERNEL_ERROR_EINVAL;
+    }
+
+    int result = pthread_mutex_unlock(&(*mutex)->pth_mutex);
+    LOG_INFO_IF(log_pthread_file, "scePthreadMutexUnlock name={} result={}\n", (*mutex)->name, result);
+    switch (result) {
+        case 0: return SCE_OK;
+
+        case EINVAL: return SCE_KERNEL_ERROR_EINVAL;
+        case EPERM: return SCE_KERNEL_ERROR_EPERM;
+        default: return SCE_KERNEL_ERROR_EINVAL;
+    }
+}
+
+int PS4_SYSV_ABI posix_pthread_mutex_init(ScePthreadMutex* mutex, const ScePthreadMutexattr* attr) {
+    LOG_INFO_IF(log_pthread_file, "posix pthread_mutex_init redirect to scePthreadMutexInit\n");
+    int result = scePthreadMutexInit(mutex, attr, nullptr);
+    if (result < 0) {
+        int rt = result > SCE_KERNEL_ERROR_UNKNOWN && result <= SCE_KERNEL_ERROR_ESTOP ? result + -SCE_KERNEL_ERROR_UNKNOWN : POSIX_EOTHER;
+        return rt;
+    }
+    return result;
+}
+
+int PS4_SYSV_ABI posix_pthread_mutex_lock(ScePthreadMutex* mutex) {
+    LOG_INFO_IF(log_pthread_file, "posix pthread_mutex_lock redirect to scePthreadMutexLock\n");
+    int result = scePthreadMutexLock(mutex);
+    if (result < 0) {
+        int rt = result > SCE_KERNEL_ERROR_UNKNOWN && result <= SCE_KERNEL_ERROR_ESTOP ? result + -SCE_KERNEL_ERROR_UNKNOWN : POSIX_EOTHER;
+        return rt;
+    }
+    return result;
+}
+
+int PS4_SYSV_ABI posix_pthread_mutex_unlock(ScePthreadMutex* mutex) {
+    LOG_INFO_IF(log_pthread_file, "posix pthread_mutex_unlock redirect to scePthreadMutexUnlock\n");
+    int result = scePthreadMutexUnlock(mutex);
+    if (result < 0) {
+        int rt = result > SCE_KERNEL_ERROR_UNKNOWN && result <= SCE_KERNEL_ERROR_ESTOP ? result + -SCE_KERNEL_ERROR_UNKNOWN : POSIX_EOTHER;
+        return rt;
+    }
+    return result;
+}
+
+void pthreadSymbolsRegister(Loader::SymbolsResolver* sym) {
+    LIB_FUNCTION("cmo1RIYva9o", "libkernel", 1, "libkernel", 1, 1, scePthreadMutexInit);
+    LIB_FUNCTION("F8bUHwAG284", "libkernel", 1, "libkernel", 1, 1, scePthreadMutexattrInit);
+    LIB_FUNCTION("iMp8QpE+XO4", "libkernel", 1, "libkernel", 1, 1, scePthreadMutexattrSettype);
+    LIB_FUNCTION("1FGvU0i9saQ", "libkernel", 1, "libkernel", 1, 1, scePthreadMutexattrSetprotocol);
+    LIB_FUNCTION("4+h9EzwKF4I", "libkernel", 1, "libkernel", 1, 1, scePthreadAttrSetschedpolicy);
+    LIB_FUNCTION("-Wreprtu0Qs", "libkernel", 1, "libkernel", 1, 1, scePthreadAttrSetdetachstate);
+    LIB_FUNCTION("eXbUSpEaTsA", "libkernel", 1, "libkernel", 1, 1, scePthreadAttrSetinheritsched);
+    LIB_FUNCTION("DzES9hQF4f4", "libkernel", 1, "libkernel", 1, 1, scePthreadAttrSetschedparam);
+    LIB_FUNCTION("nsYoNRywwNg", "libkernel", 1, "libkernel", 1, 1, scePthreadAttrInit);
+    LIB_FUNCTION("9UK1vLZQft4", "libkernel", 1, "libkernel", 1, 1, scePthreadMutexLock);
+    LIB_FUNCTION("tn3VlD0hG60", "libkernel", 1, "libkernel", 1, 1, scePthreadMutexUnlock);
+    // posix calls
+    LIB_FUNCTION("ttHNfU+qDBU", "libScePosix", 1, "libkernel", 1, 1, posix_pthread_mutex_init);
+    LIB_FUNCTION("7H0iTOciTLo", "libScePosix", 1, "libkernel", 1, 1, posix_pthread_mutex_lock);
+    LIB_FUNCTION("2Z+PpY6CaJg", "libScePosix", 1, "libkernel", 1, 1, posix_pthread_mutex_unlock);
+
+    // openorbis weird functions
+    LIB_FUNCTION("7H0iTOciTLo", "libkernel", 1, "libkernel", 1, 1, posix_pthread_mutex_lock);
+    LIB_FUNCTION("2Z+PpY6CaJg", "libkernel", 1, "libkernel", 1, 1, posix_pthread_mutex_unlock);
+}
+
+}  // namespace Core::Libraries::LibKernel

src/core/hle/libraries/libkernel/thread_management.h

@@ -0,0 +1,89 @@
+#pragma once
+#define _TIMESPEC_DEFINED
+
+#include <pthread.h>
+#include <sched.h>
+
+#include <string>
+
+#include "common/types.h"
+
+namespace Core::Loader {
+class SymbolsResolver;
+}
+
+namespace Core::Libraries::LibKernel {
+
+struct PthreadAttrInternal;
+struct PthreadMutexInternal;
+struct PthreadMutexattrInternal;
+
+using SceKernelSchedParam = ::sched_param;
+using ScePthreadAttr = PthreadAttrInternal*;
+using ScePthreadMutex = PthreadMutexInternal*;
+using ScePthreadMutexattr = PthreadMutexattrInternal*;
+
+struct PthreadInternal {
+    u08 reserved[4096];
+    std::string name;
+    pthread_t pth;
+    ScePthreadAttr attr;
+};
+
+struct PthreadAttrInternal {
+    u08 reserved[64];
+    u64 affinity;
+    size_t guard_size;
+    int policy;
+    bool detached;
+    pthread_attr_t pth_attr;
+};
+
+struct PthreadMutexInternal {
+    u08 reserved[256];
+    std::string name;
+    pthread_mutex_t pth_mutex;
+};
+
+struct PthreadMutexattrInternal {
+    u08 reserved[64];
+    pthread_mutexattr_t pth_mutex_attr;
+    int pprotocol;
+};
+
+class PThreadCxt {
+  public:
+    ScePthreadMutexattr* getDefaultMutexattr() { return &m_default_mutexattr; }
+    void setDefaultMutexattr(ScePthreadMutexattr attr) { m_default_mutexattr = attr; }
+
+  private:
+    ScePthreadMutexattr m_default_mutexattr = nullptr;
+};
+
+void init_pthreads();
+void pthreadInitSelfMainThread();
+
+int PS4_SYSV_ABI scePthreadAttrInit(ScePthreadAttr* attr);
+int PS4_SYSV_ABI scePthreadAttrSetdetachstate(ScePthreadAttr* attr, int detachstate);
+int PS4_SYSV_ABI scePthreadAttrSetinheritsched(ScePthreadAttr* attr, int inheritSched);
+int PS4_SYSV_ABI scePthreadAttrSetschedparam(ScePthreadAttr* attr, const SceKernelSchedParam* param);
+int PS4_SYSV_ABI scePthreadAttrSetschedpolicy(ScePthreadAttr* attr, int policy);
+
+/***
+ * Mutex calls
+ */
+int PS4_SYSV_ABI scePthreadMutexInit(ScePthreadMutex* mutex, const ScePthreadMutexattr* attr, const char* name);
+int PS4_SYSV_ABI scePthreadMutexattrInit(ScePthreadMutexattr* attr);
+int PS4_SYSV_ABI scePthreadMutexattrSettype(ScePthreadMutexattr* attr, int type);
+int PS4_SYSV_ABI scePthreadMutexattrSetprotocol(ScePthreadMutexattr* attr, int protocol);
+int PS4_SYSV_ABI scePthreadMutexLock(ScePthreadMutex* mutex);
+int PS4_SYSV_ABI scePthreadMutexUnlock(ScePthreadMutex* mutex);
+/****
+ * Posix calls
+ */
+int PS4_SYSV_ABI posix_pthread_mutex_init(ScePthreadMutex* mutex, const ScePthreadMutexattr* attr);
+int PS4_SYSV_ABI posix_pthread_mutex_lock(ScePthreadMutex* mutex);
+int PS4_SYSV_ABI posix_pthread_mutex_unlock(ScePthreadMutex* mutex);
+
+void pthreadSymbolsRegister(Loader::SymbolsResolver* sym);
+}  // namespace Core::Libraries::LibKernel

src/core/hle/libraries/libsystemservice/system_service.cpp

@@ -1,7 +1,8 @@
+#include "core/hle/libraries/libsystemservice/system_service.h"
+
 #include "common/log.h"
 #include "core/hle/error_codes.h"
 #include "core/hle/libraries/libs.h"
-#include "core/hle/libraries/libsystemservice/system_service.h"
 
 namespace Core::Libraries::LibSystemService {
 
@@ -10,9 +11,21 @@ s32 PS4_SYSV_ABI sceSystemServiceHideSplashScreen() {
     return SCE_OK;
 }
 
-void systemServiceSymbolsRegister(Loader::SymbolsResolver* sym) {
-    LIB_FUNCTION("Vo5V8KAwCmk", "libSceSystemService", 1, "libSceSystemService", 1, 1,
-                 sceSystemServiceHideSplashScreen);
+s32 PS4_SYSV_ABI sceSystemServiceGetStatus(SceSystemServiceStatus* status) {
+    SceSystemServiceStatus st = {};
+    st.eventNum = 0;
+    st.isSystemUiOverlaid = false;
+    st.isInBackgroundExecution = false;
+    st.isCpuMode7CpuNormal = true;
+    st.isGameLiveStreamingOnAir = false;
+    st.isOutOfVrPlayArea = false;
+    *status = st;
+    return SCE_OK;
 }
 
-}; // namespace Core::Libraries::LibSystemService
+void systemServiceSymbolsRegister(Loader::SymbolsResolver* sym) {
+    LIB_FUNCTION("Vo5V8KAwCmk", "libSceSystemService", 1, "libSceSystemService", 1, 1, sceSystemServiceHideSplashScreen);
+    LIB_FUNCTION("rPo6tV8D9bM", "libSceSystemService", 1, "libSceSystemService", 1, 1, sceSystemServiceGetStatus);
+}
+
+};  // namespace Core::Libraries::LibSystemService

src/core/hle/libraries/libsystemservice/system_service.h

@@ -8,8 +8,19 @@ class SymbolsResolver;
 
 namespace Core::Libraries::LibSystemService {
 
+struct SceSystemServiceStatus {
+    s32 eventNum;
+    bool isSystemUiOverlaid;
+    bool isInBackgroundExecution;
+    bool isCpuMode7CpuNormal;
+    bool isGameLiveStreamingOnAir;
+    bool isOutOfVrPlayArea;
+    u08 reserved[];
+};
+
 s32 PS4_SYSV_ABI sceSystemServiceHideSplashScreen();
+s32 PS4_SYSV_ABI sceSystemServiceGetStatus(SceSystemServiceStatus* status);
 
 void systemServiceSymbolsRegister(Loader::SymbolsResolver* sym);
 
-}; // namespace Core::Libraries::LibSystemService
+};  // namespace Core::Libraries::LibSystemService