duct taped posix.dll (just like microsoft), new cursor, more info in the fault handlers, processes now have a parse-it-yourself cmdline, add SYS_WAIT_THREAD and SYS_GET_PROCESS_PID, writing still doesn't work

code/kernel/ke_process.h

@@ -16,6 +16,11 @@ typedef struct PROCESS {
     uint32_t     ProcessId;
     char         Name[PROCESS_NAME_MAX];    /* UTF-8 */
 
+    // Windows-style flat command line, stored at launch by SysCreateProcess.
+    // The initial thread receives this pointer as its UserArg so _start can
+    // parse it into argc/argv without an extra syscall.
+    char         Cmdline[512];
+
     char         CurrentDirectory[512];
     SPINLOCK     CwdLock;