using, in part, language provided by Gabriel Rosenkoeter. This partially
fixes bin/20525 filed by Peter I. Hansen.
CVS ----------------------------------------------------------------------
for some stranger entries I could not verify and the FreeBSD version
of "1001 names for your baby".
web2 now includes such ever popular words as "sitzmark" (a depression
left in the snow by a skier falling backward). And no, I didn't make
that one up.
not a flat text file (boo!). Use sed instead of perl, though. In-tree
tools are better.
Also, when inserted RCS tags into generated files, don't use a tag
that will get expanded in the Makefile; quote it such that it is
only expanded when the generated file is checked in.
Default diff_options to -u, for unified-format context diffs,
because context is essential to a useful evaluation of differences.
This represents a behavior change.
Implements change-request PR security/17247 from
Takahiro Kambe <taca@sky.yamashina.kyoto.jp>.
means that the dynamic linker gets mapped in at the top of available
user virtual memory (typically just below the stack), shared libraries
get mapped downwards from that point, and calls to mmap() that don't
specify a preferred address will get mapped in below those.
This means that the heap and the mmap()ed allocations will grow
towards each other, allowing one or the other to grow larger than
before. Previously, the heap was limited to MAXDSIZ by the placement
of the dynamic linker (and the process's rlimits) and the space
available to mmap was hobbled by this reservation.
This is currently only enabled via an *option* for the i386 platform
(though other platforms are expected to follow). Add "options
USE_TOPDOWN_VM" to your kernel config file, rerun config, and rebuild
your kernel to take advantage of this.
Note that the pmap_prefer() interface has not yet been modified to
play nicely with this, so those platforms require a bit more work
(most notably the sparc) before they can use this new memory
arrangement.
This change also introduces a VM_DEFAULT_ADDRESS() macro that picks
the appropriate default address based on the size of the allocation or
the size of the process's text segment accordingly. Several drivers
and the SYSV SHM address assignment were changed to use this instead
of each one picking their own "default".
