Kernel/LibCore: Expose processor id where a thread last ran

Libraries/LibCore/ProcessStatisticsReader.cpp

@@ -85,6 +85,7 @@ HashMap<pid_t, Core::ProcessStatistics> ProcessStatisticsReader::get_all()
             thread.name = thread_object.get("name").to_string();
             thread.state = thread_object.get("state").to_string();
             thread.ticks = thread_object.get("ticks").to_u32();
+            thread.cpu = thread_object.get("cpu").to_u32();
             thread.priority = thread_object.get("priority").to_u32();
             thread.effective_priority = thread_object.get("effective_priority").to_u32();
             thread.syscall_count = thread_object.get("syscall_count").to_u32();

Libraries/LibCore/ProcessStatisticsReader.h

@@ -47,6 +47,7 @@ struct ThreadStatistics {
     unsigned file_read_bytes;
     unsigned file_write_bytes;
     String state;
+    u32 cpu;
     u32 priority;
     u32 effective_priority;
     String name;