diff options
| -rw-r--r-- | lib/libc/arch/hppa64/sys/tfork_thread.S | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/lib/libc/arch/hppa64/sys/tfork_thread.S b/lib/libc/arch/hppa64/sys/tfork_thread.S new file mode 100644 index 00000000000..96a8e4a72f6 --- /dev/null +++ b/lib/libc/arch/hppa64/sys/tfork_thread.S @@ -0,0 +1,57 @@ +/* $OpenBSD: tfork_thread.S,v 1.1 2012/04/11 12:27:08 jsing Exp $ */ +/* + * Copyright (c) 2005, Miodrag Vallat + * + * 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 ``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 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" + +/* + * int __tfork_thread(param, void *stack, void (*func)(void *), void *arg); + */ +ENTRY(__tfork_thread, 0) + SYSCALL(__tfork) + comb,<> %r0, %ret0, 1f + nop + + /* + * In child process: switch stack, invoke function, then exit. + */ + copy %arg1, %sp + ldo 0(%sp), %r3 + std,ma %r0, HPPA_FRAME_SIZE(%sp) + std %r0, HPPA_FRAME_PSP(%sp) + + copy %arg3, %arg0 /* arg */ + copy %arg2, %t1 + b,l $$dyncall, %r31 + copy %r31, %rp + + copy %r0, %arg0 + SYSCALL(__threxit) + +1: + bv %r0(%rp) + nop + +EXIT(__tfork_thread) |