Re: [Crash-utility] Analysis of s390 on x86_64

On Mon, 20 May 2019 11:28:30 +0300 Nikolay Borisov <nborisov(a)suse.com&gt; wrote: > On 20.05.19 г. 11:24 ч., Honglei Wang wrote: > > Hi Nikolay, > > > > I don't think we can do the s390 analysis just use the x86_64 crash > > utility directly. I'm not familiar with cross build, but seems this > > linkage might help: > > > > https://developer.ibm.com/linuxonpower/2017/07/06/analyzing-openpower-ker... > > This is exactly which got me started into trying to understand what it > takes to analyse s390 on x86_64. . Hence I've referenced the function > which is supposed to verify that a particular combination of host and > target is supported. I'm now interested in understanding why s390 on > x86_64 is not supported. Heh, been there already... ;-) That's for many reasons. Bernhard Walle tried to make a crosscrash package many years ago. The necessary changes were quite intrusive, and Dave wrote clearly that this was unlikely to get merged any time soon. I still thought it was a good idea, so as a Hackweek project I started writing a tool that can automatically convert the crash utility to a cross-platform variant. The (abandoned) sources can be found at GitHub[1]. IIRC this work was based on crash-6.0.5, it most likely fails miserably with any other version. ;-)