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[PUSHED] [PATCH] S390: Fix internal error with stackless inferior


Pushed:

On Thu, Feb 25 2016, Andreas Arnez wrote:

> This fixes a GDB internal error that may occur when the inferior has no
> valid stack pointer in r15.
>
> gdb/testsuite/ChangeLog:
>
> 	* gdb.arch/s390-stackless.S: New.
> 	* gdb.arch/s390-stackless.exp: New.
>
> gdb/ChangeLog:
>
> 	* s390-linux-tdep.c (s390_backchain_frame_unwind_cache): Avoid
> 	exception when attempting to access the inferior's backchain.

-- 
Andreas Arnez


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