we can end up with some threads with a non-16-byte-aligned stack. This
causes some interesting side effects, including general protection
faults leading to a SIGBUS when doing floating point or varargs. This
should be just a verbose NOP for the other platforms.
Approved by: re (scottl)
to sendfile(2) being erroneously automatically restarted after a signal
is delivered. Fixed by converting ERESTART to EINTR prior to exiting.
Updated manual page to indicate the potential EINTR error, its cause
and consequences.
Approved by: re@freebsd.org
through branch predict as suggested in INTEL IA32 optimization guide.
2.Allocate siginfo arrary separately to avoid pthread to be allocated at
2K boundary, which hits L1 address alias problem and causes context
switch to be slow down.
3.Simplify context switch code by removing redundant code, code size is
reduced, so it is expected to run faster.
Reviewed by: deischen
Approved by: re (scottl)
in init_main_thread. Also don't initialize lock and lockuser again for initial
thread, it is already done by _thr_alloc().
Reviewed by: deischen
Approved by: re (scottl)
initialization overhead, there's a problem in that we never call
imalloc() and thus malloc_init() for zero-sized allocations. As a
result, malloc(0) returns NULL when it's the first or only malloc in
the program. Any non-zero allocation will initialize the malloc code
with the side-effect that subsequent zero-sized allocations return a
non-NULL pointer. This is because the pointer we return for zero-
sized allocations is calculated from malloc_pageshift, which needs
to be initialized at runtime on ia64.
The result of the inconsistent behaviour described above is that
configure scripts failed the test for a GNU compatible malloc. This
resulted in a lot of broken ports.
Other, even simpler, solutions were possible as well:
1. initialize malloc_pageshift with some non-zero value (say 13 for
8KB pages) and keep the runtime adjustment.
2. Stop using malloc_pageshift to calculate ZEROSIZEPTR.
Removal of the runtime adjustment was chosen because then ia64 is the
same as any other platform. It is not to say that using a page size
obtained at runtime is bad per se. It's that there's currently a high
level of gratuity for its existence and the moment it causes problems
is the moment you need to get rid of it. Hence, it's not unthinkable
that this commit is (partially) reverted some time in the future when
we do have a good reason for it and a good way to achieve it.
Approved by: re@ (rwatson)
Reported by: kris (portmgr@) -- may the ports be with you
that they will be installed before application constructors are invoked.
Its possible to link applications such that this fails, application code
is invoked before they are installed, but, well, Don't Do That.
Approved by: re (jhb)
was rejected as a range error, while any values less than LONG_MIN
were silently substituted with LONG_MIN. Furthermore, on some
platforms `time_t' has less range than `long' (e.g. alpha), which may
give incorrect results when parsing some strings.
context of sockets, and document EINVAL as a possible failure mode
based on the object selected, not just the label provided.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
SO_PEERLABEL. This provides an interface to query the label of a
socket peer without embedding implementation details of mac_t in
the application. Previously, sizeof(*mac_t) had to be specified
by an application when performing getsockopt().
Document mac_get_peer(3), and expand documentation of the other
mac_get(3) functions. Note that it's possible to get EINVAL back
from mac_get_fd(3) when pointing it at an inappropriate object.
NOTE: mac_get_fd() and mac_set_fd() support for sockets will
follow shortly, so the documentation is slightly ahead of the
code.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
mac_free(3), which is used only for variables of type mac_t in
the FreeBSD implementation.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
constants NG_*SIZ that include the trailing NUL byte. This change
is mostly mechanical except for the replacement of a couple of snprintf()
and sprintf() calls with strlcpy.
is accessed for the first time as a result of an application looking
up label configuration information. Previously, the check and read
were kicked off by mac_prepare_(typename)() functions; since
mac_prepare_type() may now be directly employed by a user process,
push the check and initialization into that function.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
Replace occurences of the magic constant 2 with an offsetof macro
call that computes the size of the leading members of the sockaddr.
Use strlcpy instead of sprintf where appropriate. Document the new changes
in the man page.
- In __sigreturn call sigprocmask() to restore our signal state rather than
returning through sigreturn(). jmp to ___sigreturn to restore our register
state following this.
Requested by: pete
symbols exported by newer versions of libc, and so we want applications
depending on the newer library code to be required to link against the
newer libc.
Discussed with: scottl, kris, imp
set NAS-IP-Address attribute in requests generated by the pam_radius
module. This attribute is mandatory for some Radius servers out there.
Reviewed by: des
MFC after: 2 weeks
on whether the parent chunk is of type whole. This also applies to
MBR slices for non-GPT disks. Since most of the GPT handling is
conditionally compiled, do the same with the partition naming.
This fixes a braino that caused slices to be named as GPT partitions
and generally messing up an install.
Pointy hat: marcel
string files (__SSTR flag set). This is necessary because __sputc()
does not respect the __SALC flag, and crashes trying to flush the buffer
instead of resizing it.
PR: 59167
sorting strings with common prefixes by noting
when all the strings land in just one bin.
Testing shows significant speedups (on the order of
30%) on strings with common prefixes and no slowdowns on any
of my test cases.
Submitted by: Markus Bjartveit Kruger <markusk@pvv.ntnu.no>
PR: 58860
Approved by: gordon (mentor)
by a parent that is a session leader (e.g., login shell) by ignoring
SIGHUP in before calling fork(2) and then restoring SIGHUP's action
after setsid(3). Based on the patch by Martin Kammerhofer
<mkamm@gmx.net>.
PR: bin/25462
Reviewed by: bde, alex.neyman@auriga.ru
