581c785bf3
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
68 lines
2 KiB
C
68 lines
2 KiB
C
/* Copyright (C) 1994-2022 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <hurd/sigpreempt.h>
|
|
#include <hurd/signal.h>
|
|
#include <assert.h>
|
|
|
|
void
|
|
hurd_preempt_signals (struct hurd_signal_preemptor *preemptor)
|
|
{
|
|
__mutex_lock (&_hurd_siglock);
|
|
preemptor->next = _hurdsig_preemptors;
|
|
_hurdsig_preemptors = preemptor;
|
|
_hurdsig_preempted_set |= preemptor->signals;
|
|
__mutex_unlock (&_hurd_siglock);
|
|
}
|
|
|
|
void
|
|
hurd_unpreempt_signals (struct hurd_signal_preemptor *preemptor)
|
|
{
|
|
struct hurd_signal_preemptor **p;
|
|
sigset_t preempted = 0;
|
|
|
|
__mutex_lock (&_hurd_siglock);
|
|
|
|
p = &_hurdsig_preemptors;
|
|
while (*p)
|
|
if (*p == preemptor)
|
|
{
|
|
/* Found it; take it off the chain. */
|
|
*p = (*p)->next;
|
|
if ((preemptor->signals & preempted) != preemptor->signals)
|
|
{
|
|
/* This might have been the only preemptor for some
|
|
of those signals, so we must collect the full mask
|
|
from the others. */
|
|
struct hurd_signal_preemptor *pp;
|
|
for (pp = *p; pp; pp = pp->next)
|
|
preempted |= pp->signals;
|
|
_hurdsig_preempted_set = preempted;
|
|
}
|
|
__mutex_unlock (&_hurd_siglock);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
preempted |= (*p)->signals;
|
|
p = &(*p)->next;
|
|
}
|
|
|
|
__mutex_unlock (&_hurd_siglock); /* Avoid deadlock during death rattle. */
|
|
assert (! "removing absent preemptor");
|
|
}
|