Re: [ECOS] ARM SDT2.51 vs arm-elf-gcc

["David Airlie" <David dot Airlie at parthus dot com>]

Oh yeah I forgot to give the rest of the information..

you need to extract some function from ADS's ARM library and you also need 
to implement the __rt_raise() function yourself .. this is sort of 
documented in the ARM manuals... 

I needed to extract rt_memcpy.o, rt_udiv.o rt_div0.o rt_memcpy_w.o using 
them armar -x command, and I took them from the c_a__un.b library, the arm 
documents what libs are what also ... different ones for big/little 
endian, interworking, floating point, arm/thumb...

Dave.

On Sat, 13 Apr 2002, dnt ly wrote:

> 
> >>
> >>I've attached the script perhaps other might find it useful,
> >thanks!
> >>I've also put the build down on my development board and it didn't 
> >>work,
> >>it boots, the idle thread seems to be running but not of my user 
> >>threads
> >>seem to get started, might get some time to hack on it over the 
> >>next while
> >>..
> >I have done it with a test code(compile with ADS), and finsh linking 
> >it,
> >but the test code which call malloc and free can't link correctly 
> >address
> >which in eCos libarary. have you had problem in it?
> here is my code and assember
> 
> compile 'getsystemlanuage' in ADSv1.1 and link with arm-elf-ld(2.95.3).
> any one can help me?
> 
> 
> char *getsystemlanuage(int id)
> {
> 	char *p;
> 	...
> 	p = (char*)malloc( 32 );
> 	...
> }
> 
> 
> 0c1205a8 <getsystemlanuage>:
>  c1205a8:	e92d4038 	stmdb	sp!, {r3, r4, r5, lr}
>  c1205ac:	e1a05000 	mov	r5, r0
>  c1205b0:	e3a04000 	mov	r4, #0	; 0x0
>  c1205b4:	e3a00064 	mov	r0, #100	; 0x64
>  c1205b8:	eb0058fc 	bl	c1369b0 <free+0x18> 
>                   ^^^^^^^^^^^^^^^^^  
>  c1205bc:	e1a01000 	mov	r1, r0
>  c1205c0:	e5c15000 	strb	r5, [r1]
>  c1205c4:	e1a00001 	mov	r0, r1
>  ...
>  
> 0c136998 <free>:
>  c136998:	e1a0c00d 	mov	r12, sp
>  c13699c:	e92dd800 	stmdb	sp!, {r11, r12, lr, pc}
>  c1369a0:	e24cb004 	sub	r11, r12, #4	; 0x4
>  c1369a4:	e24dd004 	sub	sp, sp, #4	; 0x4
>  c1369a8:	e50b0010 	str	r0, [r11, -#16]
>  c1369ac:	e51b0010 	ldr	r0, [r11, -#16]
>  c1369b0:	ebffff8c 	bl	c1367e8 
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>  c1369b4:	e91ba800 	ldmdb	r11, {r11, sp, pc}
> 
> vvvvvvvvvvvvvvvvvvv
> 0c1369b8 <malloc>:
>  c1369b8:	e1a0c00d 	mov	r12, sp
>  c1369bc:	e92dd800 	stmdb	sp!, {r11, r12, lr, pc}
>  c1369c0:	e24cb004 	sub	r11, r12, #4	; 0x4
>  c1369c4:	e24dd004 	sub	sp, sp, #4	; 0x4
>  c1369c8:	e50b0010 	str	r0, [r11, -#16]
>  c1369cc:	e59f3018 	ldr	r3, [pc, #18]	; c1369ec <malloc+0x34>
> ...
> 
> 
> _________________________________________________________________
> ¦b http://explorer.msn.com.hk/intl.asp §K¶O¤U¸ü MSN Explorer
> 

-- 
      David Airlie, Software Engineer, Parthus Technologies plc.,
       Mary Rosse Centre, National Tech Park, Limerick, Ireland.
   t: +353-61-508116 / f: +353-61-508101 / David.Airlie@parthus.com


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