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/* rtems_crti.S */
#include <rtems/asm.h>
#include <rtems/score/cpu.h>
#include <libcpu/io.h>
/* terminate the __init() function and create
* a new head '_init' for use by RTEMS to
* invoke C++ global constructors
* NOTE: it is essential that this snippet
* is hooked between ecrti and crtbegin
*
* ecrti has the following .init section:
* __init:
* stwu r1,-16(r1)
* mflr r0
* stw r0,20(r1)
*
* The reason for this is that we want to call
* __eabi() at an early stage but prevent __eabi()
* from branching to __init (C++ exception init
* and global CTORs). Hence we make __init a no-op
* and create a new entry point:
*/
.section ".init","ax"
.align 2
lwz r0,r20(r1)
mtlr r0
addi r1,r1,16
blr
.globl _init
.type _init,@function
_init:
stwu r1,-16(r1)
mflr r0
stw r0,20(r1)
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