CVSROOT: /cvs
Module name: src
Changes by: matt...@cvs.openbsd.org 2014/06/23 15:10:03
Added files:
regress/sys/kern/siginfo-fault: Makefile siginfo-fault.c
Log message:
Add regress test for SIGSEGV and SIGBUS siginfo semantics.
According to POSIX, SIGSEGV should specify SEGV_ACCERR if the memory
pages are mapped, but the protections don't match the user's access
attempts, while SEGV_MAPERR should only be specified for pages that
are unmapped. Some platforms currently handle this correctly, but not
all.
Additionally, SIGBUS/BUS_ADRERR should be generated instead of SIGSEGV
for access to file mapped pages that exceed the end of the file.
(Thanks to kettenis@ for suggesting this test.)
Currently failing, so not linked into the regress tree yet.
