diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/hppa/clone.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/hppa/clone.S | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/sysdeps/unix/sysv/linux/hppa/clone.S b/sysdeps/unix/sysv/linux/hppa/clone.S deleted file mode 100644 index 4f3bb9e206..0000000000 --- a/sysdeps/unix/sysv/linux/hppa/clone.S +++ /dev/null @@ -1,99 +0,0 @@ -/* Copyright (C) 1996, 1997, 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by David Huggins-Daines <dhd@debian.org>, 2000. - Based on the Alpha version by Richard Henderson <rth@tamu.edu>, 1996. - - 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, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* 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/unistd.h> -#include <sysdep.h> -#define _ERRNO_H 1 -#include <bits/errno.h> - -/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg) */ - - .text -ENTRY(__clone) - /* FIXME: I have no idea how profiling works on hppa. */ - - /* Sanity check arguments. */ - comib,= 0,%arg0,.Lerror /* no NULL function pointers */ - ldi -EINVAL,%ret0 - comib,= 0,%arg1,.Lerror /* no NULL stack pointers */ - nop - - /* Save the fn ptr and arg on the new stack. */ - stwm %arg0,64(%arg1) - stw %arg3,-60(%arg1) - - /* Save the PIC register. */ -#ifdef PIC - stw %r19,-32(%sr0, %sp) /* parent */ -#endif - - /* Do the system call */ - copy %arg2,%arg0 - ble 0x100(%sr2,%r0) - ldi __NR_clone,%r20 - - ldi -4096,%r1 - comclr,>>= %r1,%ret0,%r0 /* Note: unsigned compare. */ - b,n .Lerror - - comib,=,n 0,%ret0,thread_start - - /* Successful return from the parent - No need to restore the PIC register, - since we return immediately. */ - - bv %r0(%rp) - nop - - /* Something bad happened -- no child created */ -.Lerror: - - /* Restore the PIC register on error */ -#ifdef PIC - ldw -32(%sr0, %sp), %r19 /* parent */ -#endif - - b __syscall_error - sub %r0,%ret0,%arg0 - -thread_start: - - /* Load up the arguments. */ - ldw -60(%sr0, %sp),%arg0 - ldw -64(%sr0, %sp),%r22 - - /* $$dyncall fixes childs PIC register */ - - /* Call the user's function */ - bl $$dyncall,%r31 - copy %r31,%rp - - bl _exit,%rp - copy %ret0,%arg0 - - /* Die horribly. */ - iitlbp %r0,(%r0) - -PSEUDO_END(__clone) - -weak_alias(__clone, clone) |