[Buildroot] libssp still missing from target

[Buildroot] libssp still missing from target

[Grant Edwards]

This has come up before, and IIRC, I ended up tweaking ext-tool.mk to
work around it.

I've just upgraded to Buildroot 2011.05, and it seems ext-tool.mk
still isn't copying libssp to the target. It's need by (among other
things) ssh:

  Starting network...
  ip: RTNETLINK answers: File exists
  Generating ECDSA Key...
  THIS CAN TAKE A MINUTE OR TWO DEPENDING ON YOUR PROCESSOR!

  /usr/bin/ssh-keygen: can't load library 'libssp.so.0'
  Starting sshd: /usr/sbin/sshd: can't load library 'libssp.so.0'

Is there some configuration option I've missed?

-- 
Grant Edwards               grant.b.edwards        Yow! I want you to MEMORIZE
                                  at               the collected poems of
                              gmail.com            EDNA ST VINCENT MILLAY
                                                   ... BACKWARDS!!

[Buildroot] libssp still missing from target

[Thomas Petazzoni]

Hello,

Le Thu, 4 Aug 2011 16:56:07 +0000 (UTC),
Grant Edwards <grant.b.edwards@gmail.com> a ?crit :

> This has come up before, and IIRC, I ended up tweaking ext-tool.mk to
> work around it.
> 
> I've just upgraded to Buildroot 2011.05, and it seems ext-tool.mk
> still isn't copying libssp to the target. It's need by (among other
> things) ssh:
> 
>   Starting network...
>   ip: RTNETLINK answers: File exists
>   Generating ECDSA Key...
>   THIS CAN TAKE A MINUTE OR TWO DEPENDING ON YOUR PROCESSOR!
> 
>   /usr/bin/ssh-keygen: can't load library 'libssp.so.0'
>   Starting sshd: /usr/sbin/sshd: can't load library 'libssp.so.0'
> 
> Is there some configuration option I've missed?

I guess libssp only exists on toolchains that have stack protection
support enabled. None of my CodeSourcery or Buildroot-built toolchains
have a libssp. I guess I'll have to build a CT-NG toolchain with libssp
support.

Regards,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

[Buildroot] libssp still missing from target

[Peter Korsgaard]

>>>>> "Thomas" == Thomas Petazzoni <thomas.petazzoni@free-electrons.com> writes:

Hi,

 Thomas> I guess libssp only exists on toolchains that have stack
 Thomas> protection support enabled. None of my CodeSourcery or
 Thomas> Buildroot-built toolchains have a libssp. I guess I'll have to
 Thomas> build a CT-NG toolchain with libssp support.

We do have a BR2_TOOLCHAIN_BUILDROOT_USE_SSP option for the internal
toolchain.

-- 
Bye, Peter Korsgaard

[Buildroot] libssp still missing from target

[Mike Frysinger]

On Thu, Aug 4, 2011 at 15:34, Thomas Petazzoni wrote:
> I guess libssp only exists on toolchains that have stack protection
> support enabled. None of my CodeSourcery or Buildroot-built toolchains
> have a libssp. I guess I'll have to build a CT-NG toolchain with libssp
> support.

not exactly.  libssp is a configure option when gcc is built.  you can
either force gcc to build/use a dedicated libssp.so, but this is
redundant when using glibc or uClibc which includes the required
symbols in its libc/ldso.

so any code in buildroot would need to detect if libssp is available
and only copy it over if so.
-mike