- when ignoring exit codes, ignore exit(-1) also (previously didn't allow '-')

[pintos-anon] / src / userprog / tss.c

diff --git a/src/userprog/tss.c b/src/userprog/tss.c
index cddad93b54964b7795dba95b586dfa96aa8083eb..f103823bb869d765b9fb5e28e1a5bd4d8090f29f 100644 (file)
--- a/src/userprog/tss.c
+++ b/src/userprog/tss.c
@@ -2,8 +2,8 @@
 #include <debug.h>
 #include <stddef.h>
 #include "userprog/gdt.h"
-#include "threads/mmu.h"
 #include "threads/palloc.h"
+#include "threads/vaddr.h"
 
 /* The Task-State Segment (TSS).
 
@@ -43,9 +43,10 @@
        stack pointer to point to the new thread's kernel stack.
        (The call is in schedule_tail() in thread.c.)
 
-   See [IA32-v3] 6.2.1 for a description of the TSS and 5.12.1
-   for a description of when and how stack switching occurs
-   during an interrupt. */
+   See [IA32-v3a] 6.2.1 "Task-State Segment (TSS)" for a
+   description of the TSS.  See [IA32-v3a] 5.12.1 "Exception- or
+   Interrupt-Handler Procedures" for a description of when and
+   how stack switching occurs during an interrupt. */
 struct tss
   {
     uint16_t back_link, :16;