On 14.10.2016 20:58, Michael Tokarev wrote:
> Hi.
> This commit: c9bc3437a905b660561a26cd4ecc64579843267b
> Author: Richard Henderson <r...@twiddle.net>
> Date:   Tue Jun 21 17:32:12 2016 -0700
>     linux-user: Provide safe_syscall for s390x
> does not build on debian unstable porterbox for s390x, with
> the following error message:
> linux-user/host/s390x/safe-syscall.inc.S: Assembler messages:
> linux-user/host/s390x/safe-syscall.inc.S:75: Error: Unrecognized opcode:
> `lt'
> rules.mak:72: recipe for target 'linux-user/safe-syscall.o' failed
> Since I know nothing about s390, I've no idea what's at fault
> here... :)  Thought I'd report this :)

"lt" seems to be a newer s390x opcode which has been added to the
architecture within the last ten years or so. So maybe you've got to add
some "-march=xxx" flag when compiling this file?
Could you maybe start with finding out the exact comand line that is
used to compile this file?


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