diff options
Diffstat (limited to 'lib/libc/arch/mips/sys/sigprocmask.S')
| -rw-r--r-- | lib/libc/arch/mips/sys/sigprocmask.S | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/lib/libc/arch/mips/sys/sigprocmask.S b/lib/libc/arch/mips/sys/sigprocmask.S new file mode 100644 index 00000000000..c2d2e503714 --- /dev/null +++ b/lib/libc/arch/mips/sys/sigprocmask.S @@ -0,0 +1,61 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Ralph Campbell. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "SYS.h" + +#if defined(LIBC_SCCS) && !defined(lint) + ASMSTR("from: @(#)sigprocmask.s 8.1 (Berkeley) 6/4/93") + ASMSTR("$Id: sigprocmask.S,v 1.1 1995/10/18 08:41:35 deraadt Exp $") +#endif /* LIBC_SCCS and not lint */ + +LEAF(sigprocmask) # sigprocmask(how, new, old) sigset_t *new, *old; + bne a1, zero, gotptr # if new sigset pointer not null + li a0, 1 # how = SIG_BLOCK + b doit # mask = zero +gotptr: + lw a1, 0(a1) # indirect to new mask arg +doit: + li v0, SYS_sigprocmask + syscall + bne a3, zero, err + beq a2, zero, out # test if old mask requested + sw v0, 0(a2) # store old mask +out: + move v0, zero + j ra +err: + j _C_LABEL(cerror) +END(sigprocmask) |