Date: Sat, 8 Jan 2011 16:30:59 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/kern imgact_elf.c Message-ID: <201101081631.p08GVGpl033794@repoman.freebsd.org>
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kib 2011-01-08 16:30:59 UTC
FreeBSD src repository
Modified files:
sys/kern imgact_elf.c
Log:
SVN rev 217152 on 2011-01-08 16:30:59Z by kib
In elf image activator, read and apply the stack protection mode from
PT_GNU_STACK program header, if present and enabled. Two new sysctls
are provided, kern.elf32.nxstack and kern.elf64.nxstack, that allow to
enable PT_GNU_STACK for ABIs of specified bitsize, if ABI decided to
support shared page.
Inform rtld about access mode of the stack initial mapping by
AT_STACKPROT aux vector.
At the moment, the default is disabled, waiting for the usermode
support bits.
Revision Changes Path
1.213 +17 -5 src/sys/kern/imgact_elf.c
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