Changeset f0c564c in rtems

Timestamp:

11/12/14 12:57:24 (9 years ago)

Author:

Sebastian Huber <sebastian.huber@…>

Branches:

4.11, 5, master

Children:

b6f21886

Parents:

3eade710

git-author:

Sebastian Huber <sebastian.huber@…> (11/12/14 12:57:24)

git-committer:

Sebastian Huber <sebastian.huber@…> (11/20/14 07:54:10)

Message:

bsps/arm: Adjust stacks for ARMv4

Reduce non-IRQ stacks to size zero. All non-IRQ stacks overlap now the
IRQ stack. This is all right since the SVC stack is used only during
startup and here interrupts are disabled. The other exception stacks
lead to a system termination by default, so we can here also use the IRQ
stack since interrupts are disabled on exception entry.

Location:

c/src/lib/libbsp/arm/shared/startup

Files:

• linkcmds.armv4 (modified) (2 diffs)
• linkcmds.base (modified) (2 diffs)

c/src/lib/libbsp/arm/shared/startup/linkcmds.armv4

@@ -8 +8 @@
 
 /*
- * Copyright (c) 2010 embedded brains GmbH.  All rights reserved.
+ * Copyright (c) 2010-2014 embedded brains GmbH.  All rights reserved.
  *
  *  embedded brains GmbH
@@ -21 +21 @@
  */
 
-bsp_stack_abt_size = DEFINED (bsp_stack_abt_size) ? bsp_stack_abt_size : 128;
-bsp_stack_abt_size = ALIGN (bsp_stack_abt_size, bsp_stack_align);
-
-bsp_stack_fiq_size = DEFINED (bsp_stack_fiq_size) ? bsp_stack_fiq_size : 128;
-bsp_stack_fiq_size = ALIGN (bsp_stack_fiq_size, bsp_stack_align);
-
-bsp_stack_irq_size = DEFINED (bsp_stack_irq_size) ? bsp_stack_irq_size : 512;
+bsp_stack_irq_size = DEFINED (bsp_stack_irq_size) ? bsp_stack_irq_size : 1024;
 bsp_stack_irq_size = ALIGN (bsp_stack_irq_size, bsp_stack_align);
 
-bsp_stack_svc_size = DEFINED (bsp_stack_svc_size) ? bsp_stack_svc_size : 512;
-bsp_stack_svc_size = ALIGN (bsp_stack_svc_size, bsp_stack_align);
-
-bsp_stack_und_size = DEFINED (bsp_stack_und_size) ? bsp_stack_und_size : 128;
-bsp_stack_und_size = ALIGN (bsp_stack_und_size, bsp_stack_align);
-
 INCLUDE linkcmds.base

c/src/lib/libbsp/arm/shared/startup/linkcmds.base

@@ -8 +8 @@
 
 /*
- * Copyright (c) 2008-2013 embedded brains GmbH.  All rights reserved.
+ * Copyright (c) 2008-2014 embedded brains GmbH.  All rights reserved.
  *
  *  embedded brains GmbH
@@ -297 +297 @@
                 . = ALIGN (bsp_stack_align);
 
+                bsp_stack_irq_begin = .;
+                . = . + bsp_stack_irq_size;
+                bsp_stack_irq_end = .;
+
+                bsp_stack_svc_begin = .;
+                . = . + bsp_stack_svc_size;
+                bsp_stack_svc_end = .;
+
                 bsp_stack_fiq_begin = .;
                 . = . + bsp_stack_fiq_size;
                 bsp_stack_fiq_end = .;
-
-                bsp_stack_irq_begin = .;
-                . = . + bsp_stack_irq_size;
-                bsp_stack_irq_end = .;
-
-                bsp_stack_svc_begin = .;
-                . = . + bsp_stack_svc_size;
-                bsp_stack_svc_end = .;
 
                 bsp_stack_und_begin = .;