More clean up stack frame handling.

[pintos-anon] / src / threads / switch.S

diff --git a/src/threads/switch.S b/src/threads/switch.S
index 5b661ec1f1fd88924704dc95c2238987479dc6ab..b00823af50044cd4e2cfb0a1f73fbd5802d18fd5 100644 (file)
--- a/src/threads/switch.S
+++ b/src/threads/switch.S
@@ -1,7 +1,7 @@
 #include "switch.h"
 
-        .globl thread_switch 
-thread_switch:
+        .globl switch_threads 
+switch_threads:
        # Save caller's register state.
        # Note that the SVR4 ABI allows us to destroy %eax, %ecx, %edx.
        # This stack frame must match the one set up by thread_create().
@@ -31,3 +31,8 @@ thread_switch:
        popl %ebp
        popl %ebx
         ret
+
+       .globl switch_thunk
+switch_thunk:
+       addl $8, %esp
+       ret