diff options
| -rw-r--r-- | libc/sysdeps/linux/alpha/Makefile.arch | 2 | ||||
| -rw-r--r-- | libc/sysdeps/linux/alpha/sigprocmask.c | 61 |
2 files changed, 62 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/alpha/Makefile.arch b/libc/sysdeps/linux/alpha/Makefile.arch index 2a66bc1a4..fddfc0052 100644 --- a/libc/sysdeps/linux/alpha/Makefile.arch +++ b/libc/sysdeps/linux/alpha/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -CSRC := __syscall_error.c +CSRC := __syscall_error.c sigprocmask.c SSRC := \ __longjmp.S brk.S bsd-_setjmp.S bsd-setjmp.S clone.S \ diff --git a/libc/sysdeps/linux/alpha/sigprocmask.c b/libc/sysdeps/linux/alpha/sigprocmask.c new file mode 100644 index 000000000..2ce49da48 --- /dev/null +++ b/libc/sysdeps/linux/alpha/sigprocmask.c @@ -0,0 +1,61 @@ +/* Copyright (C) 1993, 1995, 1997, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by David Mosberger (davidm@azstarnet.com). + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <features.h> +#include <errno.h> +#include <sys/syscall.h> +#include <signal.h> + +/* When there is kernel support for more than 64 signals, we'll have to + switch to a new system call convention here. */ + +static inline _syscall2(int, osf_sigprocmask, int, how, unsigned long int, setval); + +int +__sigprocmask (int how, const sigset_t *set, sigset_t *oset) +{ + unsigned long int setval; + long result; + + if (set) + setval = set->__val[0]; + else + { + setval = 0; + how = SIG_BLOCK; /* ensure blocked mask doesn't get changed */ + } + + result = osf_sigprocmask(how, setval); + if (result == -1) + /* If there are ever more than 63 signals, we need to recode this + in assembler since we wouldn't be able to distinguish a mask of + all 1s from -1, but for now, we're doing just fine... */ + return result; + + if (oset) + { + oset->__val[0] = result; + result = _SIGSET_NWORDS; + while (--result > 0) + oset->__val[result] = 0; + } + return 0; +} + +weak_alias (__sigprocmask, sigprocmask); |