adds two new directories in msun: ld80 and ld128. These are for
long double functions specific to the 80-bit long double format
used on x86-derived architectures, and the 128-bit format used on
sparc64, respectively.
loop count.
2. Add function pthread_mutex_setyieldloops_np to turn a mutex's yield
loop count.
3. Make environment variables PTHREAD_SPINLOOPS and PTHREAD_YIELDLOOPS
to be only used for turnning PTHREAD_MUTEX_ADAPTIVE_NP mutex.
default to the value of MK_KERBEROS unless set explicitly by
WITH_GSSAPI/WITHOUT_GSSAPI. (This introduces another type of
MK_* variables which itself is questionable.)
- Teach tools/build/options/makeman script that generates the
src.conf(5) manpage about the new type of MK_* variables.
- Fix broken logic in lib/Makefile.
when particular function can't be found in nsswitch-module. For
example, getgrouplist(3) will use module-supplied 'getgroupmembership'
function (which can work in an optimal way for such source as LDAP) and
will fall back to the stanard iterate-through-all-groups implementation
otherwise.
PR: ports/114655
Submitted by: Michael Hanselmann <freebsd AT hansmi DOT ch>
Reviewed by: brooks (mentor)
WITHOUT_KERBEROS knob. While GSS can be used for other things
some third party software (most notably ports/x11/kdelibs3)
takes the presence of libgssapi as an indication that kerberos
is available, and attempts to link with the kerberos libs. If
they are not available, the build will fail.
Because you might want to use GSS but not kerberos, add a knob
to re-enable it if WITHOUT_KERBEROS is present.
Document the new knob, and the new behavior of WITHOUT_KERBEROS.
Not objected and/or generally agreed to by: freebsd-arch
Problem discussed/analyzed in:
PR: ports/116484
is seems to be a problem for SUID applications, which we like to
prevent as much as possible.
PR: docs/39530
Submitted by: Soren Spies <sspies at apple dot com>
MFC After: 3 days
This protects against a race with an upcall in the parent during the
fork which can clobber the parent's tcb before the vm space is copied
in the child. The child then gets a corrupted tcb that is either null
or that points to another thread that doesn't exist in the child (after
a fork, only the fork()ing thread exists in the child).
Reported by: Arno J. Klaassen (arno at heho / snv / jussieu / fr)
a length field of zero; it does not mean the body is empty.
Thanks to: Lapo Luchini for sending me a JAR archive that demonstrated this bug
MFC after: 3 days
ia64, powerpc, and sparc64, use ANSI function headers and specifically
indicate the lack of arguments with 'void'. Otherwise, warnings are
generated at WARNS=3, leading to a compile failure with -Werror.
libkse in FreeBSD 8.0, do not build or install static versions of libkse
(i.e. libkse*.a) in the default case. Static versions will be built and
installed if libthr is not built or if libkse is the default threading
library.
Discussed on: freebsd-arch
MFC after: 3 days
contention. The intent is to dynamically adjust to load imbalances, which
can cause severe contention.
Use pthread mutexes where possible instead of libc "spinlocks" (they aren't
actually spin locks). Conceptually, this change is meant only to support
the dynamic load balancing code by enabling the use of spin locks, but it
has the added apparent benefit of substantially improving performance due to
reduced context switches when there is moderate arena lock contention.
Proper tuning parameter configuration for this change is a finicky business,
and it is very much machine-dependent. One seemingly promising solution
would be to run a tuning program during operating system installation that
computes appropriate settings for load balancing. (The pthreads adaptive
spin locks should probably be similarly tuned.)
vector of slots for lazily freed objects. For each deallocation, before
doing the hard work of locking the arena and deallocating, try several times
to randomly insert the object into the vector using atomic operations.
This approach is particularly effective at reducing contention for
multi-threaded applications that use the producer-consumer model, wherein
one producer thread allocates objects, then multiple consumer threads
deallocate those objects.
allocations. [1]
Fix calculation of the number of arenas when 'n' is specified via
MALLOC_OPTIONS.
Clean up various style inconsistencies.
Obtained from: [1] NetBSD
elf{32,64}_xlateto[fm]() translation functions. This change makes our
libelf compatible with other ELF(3) implementations. [1]
- Update manual page to reflect this change.
- Style fixes: wrap a long line.
Submitted by: jb [1]
Note that ULong in this code is actually defined as an unsigned integer across
all arches so that the gdtoa() function always processes 32 bit data
despite the unfortunate naming of "ULong".
libraries had not had their versions bumped relative to 6.3-REL but
had indeed been changed. We need to bump their version so they can be
properly added to the compat6x port:
libasn1.so.8 libgssapi.so.8 libhdb.so.8 libkadm5clnt.so.8
libkadm5srv.so.8 libkafs5.so.8 libkrb5.so.8 libobjc.so.2
MFC After: 1 day
doesn't use the default CFLAGS which contain -fno-strict-aliasing.
Until the code is cleaned up, just add -fno-strict-aliasing to the
CFLAGS of these for the tinderboxes' sake, allowing the rest of the
tree to have -Werror enabled again.
cause the build to fail because y.tab.c can have a more
recent modification time than y.tab.h, and the bad rule
relied on the opposite.
(The last write to y.tab.c by yacc(1) happens after the
last write to y.tab.h, according to truss(1).)
Reported by: kensmith
fixes a NULL-dereference of curthread when libstdc+ initializes
the exception handling globals on archs we can't use GNU TLS due
to lack of support in binutils 2.15 (i.e. arm and sparc64), yet,
thus making threaded C++ programs compiled with GCC 4.2.1 work
again on these archs.
Reviewed by: davidxu
MFC after: 3 days
