[En-Nut-Discussion] ARM Init code

[Michael Jones]

Hi,
When I look at the init assembler code for e.g. the AT91SAM7se I find the
following:

                
            
        ldr     r1, =RSTC_MR
        str     r0, [r1, #0]
        
        b       __set_stacks

        .ltorg

/*
* Section 2: Set stack pointers.
*/
        .section .init2,"ax",%progbits        
        .global __set_stacks
__set_stacks:

        /*
         * Set exception stack pointers and enable interrupts.
         */
       


Doesn’t the jump (b __set_stacks) totally defeat the point of putting the
different parts of the init phase into different .init segments? And also,
shouldn’t there be a gap between the .init segments so that somebody could
insert enhancements? And, especially before the segment where NutInit gets
called it would be nice to be able to insert some further init code. 

In the AVR code this used to work. Are there some fundamental changes in how
the ARM works or am I overlooking something? Elsewise I would suggest
changing the numbering of the segments and removing the jumps


And ideas or comments?

cu,
Kind Regards,
Mit freundlichen Grüßen,

Michael Jones
Phone:  +49 (6721) 98817-44

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