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* crt0 location
@ 2011-08-24 14:05 Paulo J. Matos
  2011-08-24 14:30 ` Ian Lance Taylor
  0 siblings, 1 reply; 3+ messages in thread
From: Paulo J. Matos @ 2011-08-24 14:05 UTC (permalink / raw)
  To: gcc-help

Hi all,

Mostly in my work I have several versions of cross gcc for our own port 
compiled in a directory. When I test the compilers I need to provide a 
libc (usually uclibc) and a crt0. Previously the crt0 was being copied 
to the compiler directory for it to be found however we have made those 
directories read-only. How can I tell GCC during runtime where the 
crt0.o is?

I have found out that -Bdir-to-crt0/ works. I am wondering if this is 
the right option to use or there's a better way?

Cheers,

-- 
PMatos

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: crt0 location
  2011-08-24 14:05 crt0 location Paulo J. Matos
@ 2011-08-24 14:30 ` Ian Lance Taylor
  2011-08-24 14:45   ` Paulo J. Matos
  0 siblings, 1 reply; 3+ messages in thread
From: Ian Lance Taylor @ 2011-08-24 14:30 UTC (permalink / raw)
  To: Paulo J. Matos; +Cc: gcc-help

"Paulo J. Matos" <paulo@matos-sorge.com> writes:

> Mostly in my work I have several versions of cross gcc for our own
> port compiled in a directory. When I test the compilers I need to
> provide a libc (usually uclibc) and a crt0. Previously the crt0 was
> being copied to the compiler directory for it to be found however we
> have made those directories read-only. How can I tell GCC during
> runtime where the crt0.o is?
>
> I have found out that -Bdir-to-crt0/ works. I am wondering if this is
> the right option to use or there's a better way?

The -B option works.

It should also work to configure gcc with --sysroot and put the crt0.o
file in SYSROOT/lib or SYSROOT/usr/lib.

Ian

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: crt0 location
  2011-08-24 14:30 ` Ian Lance Taylor
@ 2011-08-24 14:45   ` Paulo J. Matos
  0 siblings, 0 replies; 3+ messages in thread
From: Paulo J. Matos @ 2011-08-24 14:45 UTC (permalink / raw)
  To: gcc-help

On 24/08/11 15:29, Ian Lance Taylor wrote:
>
> The -B option works.
>
> It should also work to configure gcc with --sysroot and put the crt0.o
> file in SYSROOT/lib or SYSROOT/usr/lib.
>


Guess i will stick to -B for now since I don't know the location of crt0 
at compile time. Specifying it at compile time gives me a lot more 
flexibility.

Thanks,

-- 
PMatos

^ permalink raw reply	[flat|nested] 3+ messages in thread

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2011-08-24 14:05 crt0 location Paulo J. Matos
2011-08-24 14:30 ` Ian Lance Taylor
2011-08-24 14:45   ` Paulo J. Matos

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