Re: Prelinking on ARM with Debug Link

[Torsten Polle <Torsten dot Polle at gmx dot de>]

Hi Mark,

> Mark Wielaard writes:
>  > Hi Torsten,
> 
>  > On Fri, Nov 27, 2015 at 01:57:31PM +0100, Torsten Polle wrote:
>  >> I've stripped down the output of SystemTap in folder stap.
>  >> 
>  >> commandline.txt contains the full command line.
>  >> 
>  >> taptrek_run_izA4.stp contains the script used.
> 
>  > That is a giant script using both kernel and user space probes and
>  > guru mode functions. Are you able to reproduce it with something a
>  > bit smaller?
> 
> The script is actually a lot longer. I only sent a stripped down version of the original script.
> 
>  >> WARNING: tapset "/opt/tooling/adit/systemtap/share/systemtap/tapset/linux/arm/syscalls.stp" has errors, and will be skipped
> 
>  > You might want to look into why that is.
> 
> Yes, I know. I had re-added support of a system call (execve), which
> does not work since some time in SystemTap. But since the support
> depends on the kernel version, I get a warning about an empty file when
> the kernel version is greater than 3.7.
> 
>  >> In file included from /tmp/stap/taptrek_src.c:6010:0:
>  >> /tmp/stap/stap-symbols.h:95902:1: error: large integer implicitly truncated to unsigned type [-Werror=overflow]
> 
>  > But the stap-symbols.h file has only 8107 lines.
> 
> The file is huge. Even compressed, it was about 500kB. Therefore I only
> sent the part with the sec_module_load parts in it.
> 
>  > Cheers,
>  > Mark 

Thanks,
Torsten