4.104.115
Last change
on this file since 4990792 was
4990792,
checked in by Joel Sherrill <joel.sherrill@…>, on 03/27/10 at 15:02:02
|
2010-03-27 Joel Sherrill <joel.sherrill@…>
- context_init.c, context_switch.S, cpu.c, cpu_asm.c: Add include of
config.h
|
-
Property mode set to
100644
|
File size:
1.2 KB
|
Rev | Line | |
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[0e5b446] | 1 | /* |
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| 2 | * COPYRIGHT (c) 1989-2008. |
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| 3 | * On-Line Applications Research Corporation (OAR). |
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| 4 | * |
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| 5 | * The license and distribution terms for this file may be |
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| 6 | * found in the file LICENSE in this distribution or at |
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| 7 | * http://www.rtems.com/license/LICENSE. |
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| 8 | * |
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| 9 | * $Id$ |
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| 10 | */ |
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| 11 | |
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[4990792] | 12 | #ifdef HAVE_CONFIG_H |
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| 13 | #include "config.h" |
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| 14 | #endif |
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| 15 | |
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[0e5b446] | 16 | #include <stdint.h> |
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| 17 | #include <rtems/system.h> |
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| 18 | |
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| 19 | typedef struct { |
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| 20 | uint32_t marker; |
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| 21 | } Starting_Frame; |
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| 22 | |
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| 23 | #define _get_r12( _r12 ) \ |
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| 24 | asm volatile( "mv r12, %0" : "=r" (_r12)) |
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| 25 | |
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| 26 | void _CPU_Context_Initialize( |
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| 27 | Context_Control *the_context, |
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| 28 | uint32_t *stack_base, |
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| 29 | uint32_t size, |
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| 30 | uint32_t new_level, |
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| 31 | void *entry_point, |
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| 32 | bool is_fp |
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| 33 | ) |
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| 34 | { |
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| 35 | void *stackEnd = stack_base; |
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| 36 | Starting_Frame *frame; |
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| 37 | uint32_t r12; |
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| 38 | |
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| 39 | stackEnd += size; |
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| 40 | |
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| 41 | frame = (Starting_Frame *)stackEnd; |
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| 42 | frame--; |
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| 43 | frame->marker = 0xa5a5a5a5; |
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| 44 | |
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| 45 | _get_r12( r12 ); |
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| 46 | |
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| 47 | the_context->r8 = 0x88888888; |
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| 48 | the_context->r9 = 0x99999999; |
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| 49 | the_context->r10 = 0xaaaaaaaa; |
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| 50 | the_context->r11 = 0xbbbbbbbb; |
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| 51 | the_context->r12 = r12; |
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| 52 | the_context->r13_fp = 0; |
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| 53 | the_context->r14_lr = (uintptr_t) entry_point; |
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| 54 | the_context->r15_sp = (uintptr_t) frame; |
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| 55 | |
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| 56 | } |
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