Re: static initializer

Lei,

What does the map file say about which liker section those variables are 
in? Do you have that linker section explicitly specified in your linker 
command file?

coles555 wrote:

>Hey guys,
>I have been stuck with this particular problem for quite some time 
>now. I would really appreciate any help. I have been working with the 
>PB555 board using Codewarrior. I have modified the initialization 
>files so that the code/variables would be located within the MPC555 
>memory space. However, for some reason the _ctors and _dtors doesn't 
>go inside the code/variable memory range I have specified. Is there 
>something special about the _ctors and _dtors variable? I don't 
>understand why all the other variables are within the memory range I 
>have specified but those are not. _ctors and _dtors are used for 
>calling static initializers and destructor function. Below is the 
>block of code that uses _ctors for static initializer. According to 
>the debugger, _ctors locates in memory address 0x00405340, which is 
>outside of the memory range for PB board. So Codewarrior gives me a 
>machine check exception.
>
>	/*
>	 *	call static initializers
>	 */
>	for (constructor = _ctors; *constructor; constructor++) {
>003FA45C: 3C600040  lis      r3,64
>003FA460: 3BE35340  addi     r31,r3,21312
>003FA464: 48000014  b        __init_cpp+0x28 (0x3fa478)
>		(*constructor)();
>003FA468: 819F0000  lwz      r12,0(r31)
>003FA46C: 7D8903A6  mtctr    r12
>003FA470: 4E800421  bctrl
>	}
>003FA474: 3BFF0004  addi     r31,r31,4
>003FA478: 801F0000  lwz      r0,0(r31)
>003FA47C: 28000000  cmplwi   r0,0x0000
>003FA480: 4082FFE8  bne      __init_cpp+0x1c (0x3fa468)
>
>}
>003FA484: 83E1000C  lwz      r31,12(SP)
>003FA488: 80010014  lwz      r0,20(SP)
>003FA48C: 7C0803A6  mtlr     r0
>003FA490: 38210010  addi     SP,SP,16
>003FA494: 4E800020  blr
>
>Any help would be greatly appreciated!
>Lei
>
>
>
>
>
>
>-----------------------------------------------------------
>To learn more about Freescale Microcontrollers, please visit
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>  
>

-- 
David Wybo                    mailto:[email protected]
RealTime Consultants, Inc.    Phone: 248.345.6160
www.realtimeconsultantsinc.com





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