Heiko Carstens wrote:
> You would have to perform instruction decoding to figure out what was the
> exact failing address. Not really a thankful job.

This is done in libsigsegv and Boehm GC for m68k, PowerPC, and Alpha processors
(see [1][2][3][4]) already. Why not also for s390 and s390x?

Or even better, why doesn't the kernel do this job before passing the address
to userland?

Bruno

[1] 
http://git.savannah.gnu.org/gitweb/?p=libsigsegv.git;a=blob;f=src/fault-linux-m68k-old.c
[2] 
http://git.savannah.gnu.org/gitweb/?p=libsigsegv.git;a=blob;f=src/fault-macosdarwin5-powerpc.c
[3] 
http://git.savannah.gnu.org/gitweb/?p=libsigsegv.git;a=blob;f=src/fault-macosdarwin7-powerpc.c
[4] 
http://git.savannah.gnu.org/gitweb/?p=libsigsegv.git;a=blob;f=src/fault-netbsd-alpha.c

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