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/* Reset code for generic-m
*
* Version:Sourcery G++ 4.2-84
* BugURL:https://support.codesourcery.com/GNUToolchain/
*
* Copyright 2007 CodeSourcery.
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply. */
#if defined(__thumb2__) || defined(__ARM_ARCH_6M__)
#define THUMB 1
.thumb
.thumb_func
#else
.arm
#endif
.section .cs3.reset,"x",%progbits
.globl __cs3_reset_generic_m
.type __cs3_reset_generic_m, %function
__cs3_reset_generic_m:
.fnstart
#include <rdi-io.h>
adr r1, __cs3_heap_start_ptr
mov r0,#AngelSWI_Reason_HeapInfo
#if THUMB
bkpt 0xAB
#else
swi 0x123456
#endif
cmp r0,#0
blt 2f
/* __cs3_heap_start contains
[0] ?
[4] zero or heap limit
[8] zero or top of stack
[12] ? */
ldr r2, __cs3_heap_start_ptr
#if THUMB
ldr r1,=__cs3_stack
mov sp,r1
#else
ldr sp,=__cs3_stack
#endif
ldr r0,[r2,#8] /* top of stack */
cmp r0, #0
#if THUMB
beq 1f
mov sp,r0
1:
#else
movne sp,r0
#endif
ldr r1,=__cs3_heap_limit
ldr r0,[r2,#4] /* heap limit */
cmp r0,#0
#if THUMB
beq 1f
str r0,[r1]
1:
#else
strne r0,[r1]
#endif
.word __cs3_heap_start
2:
#if THUMB
ldr r0,=__cs3_start_c
bx r0
#else
b __cs3_start_c
#endif
.pool
.cantunwind
.fnend
.align 2
__cs3_heap_start_ptr:
.word __cs3_heap_start
.size __cs3_reset_generic_m,.-__cs3_reset_generic_m
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