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update from main arhive 970119

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This commit is contained in:
Ulrich Drepper
1997-01-20 02:49:42 +00:00
parent df5a92fd38
commit b5ce64efa4
20 changed files with 159 additions and 310 deletions
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41
sysdeps/unix/sysv/linux/m68k/clone.S
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@@ -1,20 +1,20 @@
/* Copyright (C) 1996 Free Software Foundation, Inc.
/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
Contributed by Andreas Schwab (schwab@issan.informatik.uni-dortmund.de)
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. 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. */
@@ -23,7 +23,7 @@ Cambridge, MA 02139, USA. */
#define _ERRNO_H 1
#include <errnos.h>
/* int clone (int (*fn) (), void *child_stack, int flags, int nargs, ...) */
/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
.text
ENTRY (__clone)
@@ -36,18 +36,9 @@ ENTRY (__clone)
movel 8(%sp), %a1 /* no NULL stack pointers */
tstl %a1
jeq syscall_error
movel 16(%sp), %d1 /* no negative argument counts */
jmi syscall_error
/* Allocate space on the new stack and copy args over */
movel %d1, %d0
negl %d0
lea (%a1,%d0.l*4), %a1
jeq 2f
1: movel 16(%sp,%d1.l*4), -4(%a1,%d1.l*4)
subql #1, %d1
jne 1b
2:
/* Allocate space and copy the argument onto the new stack. */
movel 16(%sp), -(%a1)
/* Do the system call */
exg %d2, %a1 /* save %d2 and get stack pointer */