diff options
Diffstat (limited to 'libc/sysdeps/linux/nios/clone.S')
-rw-r--r-- | libc/sysdeps/linux/nios/clone.S | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/libc/sysdeps/linux/nios/clone.S b/libc/sysdeps/linux/nios/clone.S deleted file mode 100644 index 9641d68b0..000000000 --- a/libc/sysdeps/linux/nios/clone.S +++ /dev/null @@ -1,87 +0,0 @@ -/* Copyright (C) 1996, 1997, 1998, 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Richard Henderson (rth@tamu.edu). - - 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 - <http://www.gnu.org/licenses/>. */ - -/* clone() is even more special than fork() as it mucks with stacks - and invokes a function in the right context after its all over. */ - -#include <asm/errno.h> -#include <sys/syscall.h> -#include "NM_Macros.S" - -/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */ - - .text - .align 2 - .globl clone - .type clone,@function - -clone: - save %sp,-16 - - MOVIP %l0, -EINVAL - /* sanity check arguments */ - skprnz %i0 /* no NULL function pointers */ - br CLONE_ERROR_LABEL - mov %o0, %i2 - - skprnz %i1 /* no NULL stack pointers */ - br CLONE_ERROR_LABEL - mov %o1, %i1 - - /* Do the system call */ - MOVIP %g1, __NR_clone - trap 63 - - /* if ret >=0? */ - cmpi %o0, 0 - skps cc_pl - br CLONE_ERROR_LABEL - mov %l0, %o0 - - /* Start thread */ - skprz %o1 - br __thread_start - nop - mov %i0, %o0 - ret - restore - -CLONE_ERROR_LABEL: - neg %l0 - MOVIA %g1, __errno_location@h - call %g1 - nop - st [%o0], %l0 /* store errno */ - - xor %i0, %i0 - dec %i0 /* retval=-1 */ - ret - restore - - .size clone, .-clone - - .type __thread_start,@function - -__thread_start: - call %i0 - mov %o0, %i3 - MOVIA %g1, _exit@h - call %g1 - nop - - .size __thread_start, .-__thread_start |