RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

bsps/arm: Adjust stacks for ARMv4

Browse Source 
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.
This commit is contained in:
Sebastian Huber
2014-11-12 13:57:24 +01:00
parent 3eade71044
commit f0c564c5ae
2 changed files with 7 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
c/src/lib/libbsp/arm/shared/startup/linkcmds.armv4
View File

@@ -7,7 +7,7 @@
*/
/*
* Copyright (c) 2010 embedded brains GmbH. All rights reserved.
* Copyright (c) 2010-2014 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
@@ -20,19 +20,7 @@
* http://www.rtems.org/license/LICENSE.
*/
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

10
c/src/lib/libbsp/arm/shared/startup/linkcmds.base
View File

@@ -7,7 +7,7 @@
*/
/*
* Copyright (c) 2008-2013 embedded brains GmbH. All rights reserved.
* Copyright (c) 2008-2014 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
@@ -296,10 +296,6 @@ SECTIONS {
. = ALIGN (bsp_stack_align);
bsp_stack_fiq_begin = .;
. = . + bsp_stack_fiq_size;
bsp_stack_fiq_end = .;
bsp_stack_irq_begin = .;
. = . + bsp_stack_irq_size;
bsp_stack_irq_end = .;
@@ -308,6 +304,10 @@ SECTIONS {
. = . + bsp_stack_svc_size;
bsp_stack_svc_end = .;
bsp_stack_fiq_begin = .;
. = . + bsp_stack_fiq_size;
bsp_stack_fiq_end = .;
bsp_stack_und_begin = .;
. = . + bsp_stack_und_size;
bsp_stack_und_end = .;