[ECOS] HELP with target.ld file syntax...SOLUTION

Leo McManus leomcmanusir@yahoo.com
Fri Apr 16 10:02:00 GMT 2004


I have generated an eCos library and am just linking to it, so am not
regenerating, (which I didn't know it did), the target.ld file. You are correct
and I am modifying the target.ld file, but I will look at the file you have
mentioned...if I can find the bugger..and see how my mods would be addable!

Thanks

Leo




 --- Richard.von.Lehe@gd-ais.com wrote: > I am interested in this discussion
and have a question about your 
> solution.  Are you editing the actual target.ld file or are you editing 
> the mlt_xxx_xxx_xxx.ldi file that is used to generate the target.ld 
> file?  Based on the syntax it looks like you are talking about the 
> actual target.ld file.
> 
> Is this a safe practice?  In other words, when does the target.ld file 
> get re-generated?  If it does, won't you lose your changes?  I don't 
> fully know how this all works - hopefully you can straighten me out.
> 
> Regards,
> Rich von Lehe
> 
> Leo McManus wrote:
> 
> >Added ram2 to the MEMORY in my target.ld:
> >
> > MEMORY
> >{
> >    ram  : ORIGIN = 0x0000000,   LENGTH = 0x800000
> >    ram1 : ORIGIN = 0x0000000,   LENGTH = 0x800000
> >    ram2 : ORIGIN = 0x80000000,  LENGTH = 0x800000
> >}
> >
> >and my usb_buffs to my SECTIONS
> >
> >SECTIONS
> >{
> >...
> >...
> >...
> >    .fixed_vectors 0x20 : { . = .; KEEP (*(.fixed_vectors)) } > ram1
> >    .usb_buff 0x80000000 : { . = .; KEEP (*(.usb_buff)) } > ram2
> >...
> >...
> >...
> >}
> >
> >the attribute Gregoire mentioned to my C file:
> >
> >uchar    ECHO_ENDPOINT_BUFFER_1[1000] __attribute__((section(".usb_buff")));
> >uchar    ECHO_ENDPOINT_BUFFER_2[1000] __attribute__((section(".usb_buff")));
> >uchar    ECHO_ENDPOINT_RECV_BUFFER[1000]
> __attribute__((section(".usb_buff")));
> >
> >and now my map file reads:
> >
> >.usb_buff       0x80000000      0xbb8
> >                0x80000000                . = .
> > *(.usb_buff)
> > .usb_buff      0x80000000      0xbb8 myFile.o
> >                0x80000000                ECHO_ENDPOINT_BUFFER_1
> >                0x800003e8                ECHO_ENDPOINT_BUFFER_2
> >                0x800007d0                ECHO_ENDPOINT_RECV_BUFFER
> >
> >Perfect...(before testing :)
> >
> >Thanks
> >
> >Leo
> >
> > --- Gregoire ETIENNE <etiennegr@hotmail.com> wrote: > well, in you'r
> position,
> >I would declare that these buffer belong to a
> >  
> >
> >>custom section with the __attribute__ keyword
> >>
> >>uchar    ECHO_ENDPOINT_BUFFER_1[1000]
> >>__attribute__((section(".zone_name")));
> >>
> >>This will creat a section .zone_name with ECHO_ENDPOINT_BUFFER_1 in it
> >>once the section appears in your map file, adapt your target.ld file to
> >>simply place this section to the right address
> >>
> >>Greg
> >>
> >>----- Original Message ----- 
> >>From: "Leo McManus" <leomcmanusir@yahoo.com>
> >>To: "OpenWinCE Project" <openwince-list-request@lists.sourceforge.net>;
> >>"EcosMailList EcosList" <ecos-discuss@sources.redhat.com>
> >>Sent: Wednesday, April 14, 2004 5:14 PM
> >>Subject: [ECOS] HELP with target.ld file syntax
> >>
> >>
> >>Running eCos on ARM Integreator board with ARM720T processor.
> >>
> >>I have 3 high speed USB OTG buffers which need to be above address
> >>0x80000000
> >>on an ARM Integrator board, so my USB chip and the ARM can share the
> memory.
> >>
> >>uchar    ECHO_ENDPOINT_BUFFER_1[1000];
> >>uchar    ECHO_ENDPOINT_BUFFER_2[1000];
> >>uchar    ECHO_ENDPOINT_RECV_BUFFER[1000];
> >>
> >>I am after the syntax to relocate the buffers using my target.ld linker
> >>file.
> >>
> >>
> >>Thanks
> >>
> >>Leo
> >>
> >>
> >>=====
> >>Mobile Belgium: +32 (0)495 89 59 65
> >>Contact in France:  +33 (0)476 275661
> >>
> >>Registered Linux User Number 205935.
> >>http://counter.li.org.
> >>
> >>
> >>
> >>
> >>
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> >>-- 
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> >>and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
> >> 
> >>    
> >>
> >
> >=====
> >Mobile Belgium: +32 (0)495 89 59 65
> >Contact in France:  +33 (0)476 275661
> >
> >Registered Linux User Number 205935.
> >http://counter.li.org.
> >
> >
> >	
> >	
> >		
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> >  
> >
>  

=====
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Contact in France:  +33 (0)476 275661

Registered Linux User Number 205935.
http://counter.li.org.


	
	
		
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