Re: PowerPC linking error messages

["William A. Gatliff" <bgat at billgatliff dot com>]

Eddy:


EABI specifies some additional linker sections like .sdata, etc..
Clone the yellowknife.ld linker command file from newlib for a
complete exaple.


b.g.


Check out On Mon, Jan 28, 2002 at 06:33:41PM +0100, Eddy Ilg wrote:
> Hi,
> 
> I am trying to get started with a crossgcc for an embedded PowerPC
> (MPC555). I am stuck on these error messages: 
> 
> -----
> /usr/bin/crossgcc/lib/gcc-lib/powerpc-eabi/3.0.3/../../../../powerpc-eabi/bin/ld:
> warning: no memory region specified for section `.sdata2'
> /usr/bin/crossgcc/lib/gcc-lib/powerpc-eabi/3.0.3/../../../../powerpc-eabi/bin/ld:
> warning: no memory region specified for section `.got2'
> /usr/bin/crossgcc/lib/gcc-lib/powerpc-eabi/3.0.3/../../../../powerpc-eabi/bin/ld:
> warning: no memory region specified for section `.got'
> /usr/bin/crossgcc/lib/gcc-lib/powerpc-eabi/3.0.3/../../../../powerpc-eabi/bin/ld:
> warning: no memory region specified for section `.sdata'
> /usr/bin/crossgcc/lib/gcc-lib/powerpc-eabi/3.0.3/../../../../powerpc-eabi/bin/ld:
> main: Not enough room for program headers (allocated 2, need 3)
> /usr/bin/crossgcc/lib/gcc-lib/powerpc-eabi/3.0.3/../../../../powerpc-eabi/bin/ld:
> final link failed: Bad value
> collect2: ld returned 1 exit status
> -----
> 
> The last 2 I don't understand. What do they mean?
> In checked the ld manual for sections but I didn't find any. Where could I
> find a list of sections that gcc generates (sdata, got2,...)?
> 
> Here is my linker command file:
> ------
> OUTPUT_FORMAT("coff-sh")
> 
> OUTPUT_ARCH(powerpc)
> 
> ENTRY(main)
> 
> PROVIDE(_stack = 0x1ffe00);
> 
> MEMORY 
> {
>  ram : o = 0 , l =  10k
> }
> 
> SECTIONS 
> {
> 	/* Code and constants */
> 	.text :
> 	{
> 		__text_start = .;
> 		*(.text)
> 		*(.strings)
> 		__text_end = .;
> 	} > ram
> 	/* Unitialized data */
> 	.bss : 
> 	{
> 		__bss_start = .;
> 		*(.bss)
> 		*(COMMON)
> 		__bss_end = .;
> 	} > ram
> 	/* Initialized data */
> 	.init : 
> 	{
> 		__data_start = .;
> 		*(.data)
> 		__data_end = .;
> 	} > ram
> 	/* Application stack */
> 	.stack :
> 	{
> 		__stack_start = .;
> 		*(.stack)
> 		__stack_end = .;
> 	} > ram
> }
> ------
> 
> Thanks
> 
> 
> 
> Eddy
> 
> 
> 
> 
> 
> ------
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> 

-- 
Bill Gatliff
bgat@billgatliff.com

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