Changeset b6d4566 in mainline for arch/ia64/include/context.h

Timestamp:

2006-03-27T16:56:51Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

ff75d34

Parents:

50fe620

Message:

CPU stacks must have two frames on ia64.
Make sure both thread stack frames are mapped in before_thread_runs_arch().
Take STACK_FRAMES into account during kernel memory layout initialization in main_bsp().

File:

• arch/ia64/include/context.h (modified) (3 diffs)

arch/ia64/include/context.h

@@ -37 +37 @@
 
 /*
- * context_save() and context_restore() are both leaf procedures.
+ * context_save_arch() and context_restore_arch() are both leaf procedures.
  * No need to allocate scratch area.
  *
@@ -48 +48 @@
 #endif
 
-/*RSE stack should begin under bottom of stack @ kernel*/
-#define context_set(c, _pc, stack, size)                                                                \
-        (c)->pc = (__address) _pc;                                                                      \
-        (c)->bsp = ((__address) stack) + ALIGN_UP((size), STACK_ALIGNMENT) ;    \
-        (c)->ar_pfs &= PFM_MASK;                                                                        \
-        (c)->sp = ((__address) stack) + ALIGN_UP((size), STACK_ALIGNMENT) - SP_DELTA;
+/* RSE stack starts at the bottom of memory stack. */
+#define context_set(c, _pc, stack, size)                                                                \
+        do {                                                                                            \
+                (c)->pc = (__address) _pc;                                                              \
+                (c)->bsp = ((__address) stack) + ALIGN_UP((size), REGISTER_STACK_ALIGNMENT);            \
+                (c)->ar_pfs &= PFM_MASK;                                                                \
+                (c)->sp = ((__address) stack) + ALIGN_UP((size), STACK_ALIGNMENT) - SP_DELTA;           \
+        } while (0);
 
 /*
@@ -123 +125 @@
 };
 
-
-
 #endif