Changeset 2902e1bb in mainline for kernel/arch/sparc64

Timestamp:

2012-06-13T13:17:46Z (14 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

1d4024cf, 375e501

Parents:

faba839

Message:

add support for variable uspace stack size
create individual address space areas for stacks of additional threads (instead of allocating the stack from heap)
avoid memory leaks in program_create()

Location:

kernel/arch/sparc64/src

Files:

• sun4u/sparc64.c (modified) (1 diff)
• sun4v/sparc64.c (modified) (1 diff)

kernel/arch/sparc64/src/sun4u/sparc64.c

@@ -156 +156 @@
         (void) interrupts_disable();
         switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
-            ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE
-            - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
+            ((uintptr_t) kernel_uarg->uspace_stack) +
+            kernel_uarg->uspace_stack_size -
+            (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
             (uintptr_t) kernel_uarg->uspace_uarg);
-
-        for (;;)
-                ;
-        /* not reached */
+        
+        /* Not reached */
+        while (1);
 }
 

kernel/arch/sparc64/src/sun4v/sparc64.c

@@ -154 +154 @@
         (void) interrupts_disable();
         switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
-            ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE
-            - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
+            ((uintptr_t) kernel_uarg->uspace_stack) +
+            kernel_uarg->uspace_stack_size -
+            (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
             (uintptr_t) kernel_uarg->uspace_uarg);
-
-        for (;;)
-                ;
-        /* not reached */
+        
+        /* Not reached */
+        while (1);
 }