core: Remove Core::CurrentProcess()

This only encourages the use of the global system instance (which will
be phased out long-term). Instead, we use the direct system function
call directly to remove the appealing but discouraged short-hand.

src/core/core.h

@@ -359,8 +359,4 @@ private:
     static System s_instance;
 };
 
-inline Kernel::Process* CurrentProcess() {
-    return System::GetInstance().CurrentProcess();
-}
-
 } // namespace Core

src/core/file_sys/savedata_factory.cpp

@@ -127,8 +127,9 @@ std::string SaveDataFactory::GetFullPath(SaveDataSpaceId space, SaveDataType typ
                                          u128 user_id, u64 save_id) {
     // According to switchbrew, if a save is of type SaveData and the title id field is 0, it should
     // be interpreted as the title id of the current process.
-    if (type == SaveDataType::SaveData && title_id == 0)
+    if (type == SaveDataType::SaveData && title_id == 0) {
-        title_id = Core::CurrentProcess()->GetTitleID();
+        title_id = Core::System::GetInstance().CurrentProcess()->GetTitleID();
+    }
 
     std::string out = GetSaveDataSpaceIdPath(space);
 

src/core/gdbstub/gdbstub.cpp

@@ -641,7 +641,8 @@ static void HandleQuery() {
                        strlen("Xfer:features:read:target.xml:")) == 0) {
         SendReply(target_xml);
     } else if (strncmp(query, "Offsets", strlen("Offsets")) == 0) {
-        const VAddr base_address = Core::CurrentProcess()->VMManager().GetCodeRegionBaseAddress();
+        const VAddr base_address =
+            Core::System::GetInstance().CurrentProcess()->VMManager().GetCodeRegionBaseAddress();
         std::string buffer = fmt::format("TextSeg={:0x}", base_address);
         SendReply(buffer.c_str());
     } else if (strncmp(query, "fThreadInfo", strlen("fThreadInfo")) == 0) {

src/core/hle/kernel/handle_table.cpp

@@ -103,7 +103,7 @@ SharedPtr<Object> HandleTable::GetGeneric(Handle handle) const {
     if (handle == CurrentThread) {
         return GetCurrentThread();
     } else if (handle == CurrentProcess) {
-        return Core::CurrentProcess();
+        return Core::System::GetInstance().CurrentProcess();
     }
 
     if (!IsValid(handle)) {

src/core/memory.cpp

@@ -146,7 +146,7 @@ static u8* GetPointerFromVMA(const Kernel::Process& process, VAddr vaddr) {
  * using a VMA from the current process.
  */
 static u8* GetPointerFromVMA(VAddr vaddr) {
-    return GetPointerFromVMA(*Core::CurrentProcess(), vaddr);
+    return GetPointerFromVMA(*Core::System::GetInstance().CurrentProcess(), vaddr);
 }
 
 template <typename T>
@@ -226,7 +226,7 @@ bool IsValidVirtualAddress(const Kernel::Process& process, const VAddr vaddr) {
 }
 
 bool IsValidVirtualAddress(const VAddr vaddr) {
-    return IsValidVirtualAddress(*Core::CurrentProcess(), vaddr);
+    return IsValidVirtualAddress(*Core::System::GetInstance().CurrentProcess(), vaddr);
 }
 
 bool IsKernelVirtualAddress(const VAddr vaddr) {
@@ -387,7 +387,7 @@ void ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_
 }
 
 void ReadBlock(const VAddr src_addr, void* dest_buffer, const std::size_t size) {
-    ReadBlock(*Core::CurrentProcess(), src_addr, dest_buffer, size);
+    ReadBlock(*Core::System::GetInstance().CurrentProcess(), src_addr, dest_buffer, size);
 }
 
 void Write8(const VAddr addr, const u8 data) {
@@ -450,7 +450,7 @@ void WriteBlock(const Kernel::Process& process, const VAddr dest_addr, const voi
 }
 
 void WriteBlock(const VAddr dest_addr, const void* src_buffer, const std::size_t size) {
-    WriteBlock(*Core::CurrentProcess(), dest_addr, src_buffer, size);
+    WriteBlock(*Core::System::GetInstance().CurrentProcess(), dest_addr, src_buffer, size);
 }
 
 void ZeroBlock(const Kernel::Process& process, const VAddr dest_addr, const std::size_t size) {
@@ -539,7 +539,7 @@ void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr,
 }
 
 void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size) {
-    CopyBlock(*Core::CurrentProcess(), dest_addr, src_addr, size);
+    CopyBlock(*Core::System::GetInstance().CurrentProcess(), dest_addr, src_addr, size);
 }
 
 } // namespace Memory