task: Implement new process state

Added "Frozen" for vfork implementation.

core/panic/ui.cpp

@@ -525,6 +525,7 @@ nsa void DisplayProcessScreen(CPU::ExceptionFrame *Frame, bool IgnoreReady = tru
 		"35m",	 // Core dump
 		"1;31m", // Zombie
 		"31m",	 // Terminated
+		"1;33m", // Frozen
 	};
 
 	const char *StatusString[] = {
@@ -539,6 +540,7 @@ nsa void DisplayProcessScreen(CPU::ExceptionFrame *Frame, bool IgnoreReady = tru
 		"CRD", // Core dump
 		"ZMB", // Zombie
 		"TRM", // Terminated
+		"FRZ", // Frozen
 	};
 
 	if (!TaskManager)

include/task.hpp

@@ -170,8 +170,15 @@ namespace Tasking
 		 */
 		Terminated,
 
+		/**
+		 * Frozen
+		 *
+		 * Used internally by the kernel
+		 */
+		Frozen,
+
 		_StatusMin = UnknownStatus,
-		_StatusMax = Terminated
+		_StatusMax = Frozen
 	};
 
 	enum TaskPriority
@@ -475,6 +482,12 @@ namespace Tasking
 		TaskInfo Info{};
 		ThreadLocalStorage TLS{};
 
+		struct
+		{
+			bool vforked = false;
+			TCB *CallingThread = nullptr;
+		} Linux{};
+
 		/* Filesystem */
 		FileNode *CWD;
 		FileNode *Executable;

kshell/commands/top.cpp

@@ -37,6 +37,7 @@ const char *TaskStateStrings[] = {
 	"CoreDump",	  // Core dump
 	"Zombie",	  // Zombie
 	"Terminated", // Terminated
+	"Frozen",	  // Frozen
 };
 
 void cmd_top(const char *)

tests/taskmgr.cpp

@@ -32,6 +32,8 @@ const char *Statuses[] = {
 
 	"FF0088", /* Zombie */
 	"FF0000", /* Terminated */
+
+	"FF8800", /* Frozen */
 };
 
 const char *StatusesSign[] = {
@@ -46,6 +48,7 @@ const char *StatusesSign[] = {
 	"Core",
 	"Zombie",
 	"Terminated",
+	"Frozen",
 };
 
 const char *SuccessSourceStrings[] = {