diff options
Diffstat (limited to 'lib/libc/alpha')
| -rw-r--r-- | lib/libc/alpha/gen/Makefile.inc | 1 | ||||
| -rw-r--r-- | lib/libc/alpha/gen/rfork_thread.S | 65 |
2 files changed, 66 insertions, 0 deletions
diff --git a/lib/libc/alpha/gen/Makefile.inc b/lib/libc/alpha/gen/Makefile.inc index 4e7fb35..d316fdb 100644 --- a/lib/libc/alpha/gen/Makefile.inc +++ b/lib/libc/alpha/gen/Makefile.inc @@ -7,6 +7,7 @@ SRCS+= flt_rounds.c fpgetmask.c fpgetround.c fpgetsticky.c fpsetmask.c \ SRCS+= sigsetjmp.S SRCS+= __divqu.S __divq.S __divlu.S __divl.S SRCS+= __remqu.S __remq.S __remlu.S __reml.S +SRCS+= rfork_thread.S CLEANFILES+= __divqu.S __divq.S __divlu.S __divl.S CLEANFILES+= __remqu.S __remq.S __remlu.S __reml.S diff --git a/lib/libc/alpha/gen/rfork_thread.S b/lib/libc/alpha/gen/rfork_thread.S new file mode 100644 index 0000000..ff0ed2c --- /dev/null +++ b/lib/libc/alpha/gen/rfork_thread.S @@ -0,0 +1,65 @@ +/*- + * Copyright (c) 2000 Peter Wemm <peter@FreeBSD.org> + * All rights reserved. + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + * + * $FreeBSD$ + */ + +#include "SYS.h" +#include <sys/syscall.h> +/* #include <machine/pal.h> */ + +/* + * This is pretty evil and based mostly on examples from other syscall + * stubs and code that gcc generated. Correctness is uncertain, but it + * seems to work quite happily. + */ +LEAF(rfork_thread, 1) + br gp,L1 /* XXX profiling */ +L1: + LDGP(pv) + lda sp,-16(sp) + stq ra,0(sp) + mov a3,a5 + CALLSYS_ERROR(rfork) + beq v0,$child + addl v0,zero,v0 + ldq ra,0(sp) + lda sp,16(sp) + RET +$child: + mov a1,sp + lda sp,-16(sp) + stq zero,0(sp) + mov a5,a0 + mov a2,t12 + jsr ra,(t12),0 + ldgp gp,0(ra) + mov v0,a0 +#ifdef SYS_exit + CALLSYS_NOERROR(exit) +#else + CALLSYS_NOERROR(sys_exit) +#endif +END(rfork_thread) |
