Changeset 244 for soft/giet_vm/libs/spin_lock.c

Timestamp:

Jun 6, 2013, 5:39:18 PM (11 years ago)

Author:

brejon

Message:

• Update malloc (remote free)
• bugfix in spin_lock (bad register used in asm inline)
• memo/Makefile clean rule : added "-f" option to rm command
• main Makefile :
  • added spin_lock.o in dhrystone object files
  • added rules to compile spin_lock

File:

• soft/giet_vm/libs/spin_lock.c (modified) (2 diffs)

soft/giet_vm/libs/spin_lock.c

@@ -32 +32 @@
 
     asm volatile (
-            "giet_lock_try:                 \n"
-            "ll   $2,    0(%0)              \n" /* $2 <= lock current value */
+            "move $16, %0                   \n"
+            "giet_lock_try :                \n"
+            "ll   $2,    0($16)             \n" /* $2 <= lock current value */
             "bnez $2,    giet_lock_delay    \n" /* retry if lock already taken */
             "li   $3,    1                  \n" /* $3 <= argument for sc */
-            "sc   $3,    0(%0)              \n" /* try to get lock */
+            "sc   $3,    0($16)             \n" /* try to get lock */
             "bnez $3,    giet_lock_ok       \n" /* exit if atomic */
 
@@ -53 +54 @@
             :
             :"r"(plock)
-            :"$2", "$3", "$4");
+            :"$2", "$3", "$4", "$16");
 }