Changeset 05ae7081 in mainline for kernel/arch/sparc64/include/trap/trap_table.h

Timestamp:

2007-11-16T16:24:05Z (17 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

9cc0d7c

Parents:

454889c

Message:

Support for six syscall arguments for sparc64.
There is a minor stability issue which needs to be fixed (kernel panics upon entering kconsole from the
console task).

File:

• kernel/arch/sparc64/include/trap/trap_table.h (modified) (1 diff)

kernel/arch/sparc64/include/trap/trap_table.h

@@ -78 +78 @@
 
 /*
- * The following needs to be in sync with the
- * definition of the istate structure.
+ * The following needs to be in sync with the definition of the istate
+ * structure. The one STACK_ITEM_SIZE is counted for space holding the 7th
+ * argument to syscall_handler (i.e. syscall number) and the other
+ * STACK_ITEM_SIZE is counted because of the required alignment.
  */
-#define PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE    (STACK_WINDOW_SAVE_AREA_SIZE+(12*8))
-#define SAVED_TSTATE    -(1*8)
-#define SAVED_TPC       -(2*8)
-#define SAVED_TNPC      -(3*8)          /* <-- istate_t begins here */
-#define SAVED_Y         -(4*8)
-#define SAVED_I0        -(5*8)
-#define SAVED_I1        -(6*8)
-#define SAVED_I2        -(7*8)
-#define SAVED_I3        -(8*8)
-#define SAVED_I4        -(9*8)
-#define SAVED_I5        -(10*8)
-#define SAVED_I6        -(11*8)
-#define SAVED_I7        -(12*8)
+#define PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE    \
+    (STACK_WINDOW_SAVE_AREA_SIZE + STACK_ARG_SAVE_AREA_SIZE + \
+    (2 * STACK_ITEM_SIZE) + (12 * 8))
+#define SAVED_TSTATE    -(1 * 8)
+#define SAVED_TPC       -(2 * 8)
+#define SAVED_TNPC      -(3 * 8)        /* <-- istate_t begins here */
+#define SAVED_Y         -(4 * 8)
+#define SAVED_I0        -(5 * 8)
+#define SAVED_I1        -(6 * 8)
+#define SAVED_I2        -(7 * 8)
+#define SAVED_I3        -(8 * 8)
+#define SAVED_I4        -(9 * 8)
+#define SAVED_I5        -(10 * 8)
+#define SAVED_I6        -(11 * 8)
+#define SAVED_I7        -(12 * 8)
 
 .macro PREEMPTIBLE_HANDLER f