diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sh/clone.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/clone.S | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/sysdeps/unix/sysv/linux/sh/clone.S b/sysdeps/unix/sysv/linux/sh/clone.S deleted file mode 100644 index 9063b21928..0000000000 --- a/sysdeps/unix/sysv/linux/sh/clone.S +++ /dev/null @@ -1,103 +0,0 @@ -/* Copyright (C) 1999-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - 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 <sysdep.h> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <tcb-offsets.h> - -/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg, - pid_t *ptid, void *tls, pid_t *ctid); */ - - .text -ENTRY(__clone) - /* sanity check arguments. */ - tst r4, r4 - bt/s 0f - tst r5, r5 - bf 1f -0: - bra .Lsyscall_error - mov #-EINVAL,r0 -1: - /* insert the args onto the new stack */ - mov.l r7, @-r5 - /* save the function pointer as the 0th element */ - mov.l r4, @-r5 - - /* do the system call */ - mov r6, r4 - mov.l @r15, r6 - mov.l @(8,r15), r7 - mov.l @(4,r15), r0 - mov #+SYS_ify(clone), r3 - trapa #0x15 - mov r0, r1 - mov #-12, r2 - shad r2, r1 - not r1, r1 // r1=0 means r0 = -1 to -4095 - tst r1, r1 // i.e. error in linux - bf .Lclone_end -.Lsyscall_error: - SYSCALL_ERROR_HANDLER -.Lclone_end: - tst r0, r0 - bt 2f -.Lpseudo_end: - rts - nop -2: - /* terminate the stack frame */ - mov #0, r14 - - /* thread starts */ - mov.l @r15, r1 - jsr @r1 - mov.l @(4,r15), r4 - - /* we are done, passing the return value through r0 */ - mov.l .L3, r1 -#ifdef SHARED - mov.l r12, @-r15 - sts.l pr, @-r15 - mov r0, r4 - mova .LG, r0 - mov.l .LG, r12 - add r0, r12 - mova .L3, r0 - add r0, r1 - jsr @r1 - nop - lds.l @r15+, pr - rts - mov.l @r15+, r12 -#else - jmp @r1 - mov r0, r4 -#endif - .align 2 -.LG: - .long _GLOBAL_OFFSET_TABLE_ -.L3: - .long PLTJMP(C_SYMBOL_NAME(_exit)) -PSEUDO_END (__clone) - -libc_hidden_def (__clone) -weak_alias (__clone, clone) |