update from main arhive 970119

[jlayton/glibc.git] / sysdeps / unix / sysv / linux / sparc / clone.S

diff --git a/sysdeps/unix/sysv/linux/sparc/clone.S b/sysdeps/unix/sysv/linux/sparc/clone.S
index 875dcba64a01e2275e10ead8df85678d325f0bf2..9e1ba812b0335fae6a76d4260d70fd8ba5c3f91a 100644 (file)
--- a/sysdeps/unix/sysv/linux/sparc/clone.S
+++ b/sysdeps/unix/sysv/linux/sparc/clone.S
@@ -1,34 +1,29 @@
-/* Copyright (C) 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
    Contributed by Miguel de Icaza (miguel@nuclecu.unam.mx)
+   Based on code written for the Intel by Richard Henderson (rth@tamu.edu).
 
-   FIXME:      Currently only 6 parameters can be passsed
-               to the clone function.
-               
-   based on code written for the Intel 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 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.  */
-       
+
 #include <asm/errno.h>
 #include <asm/unistd.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
        .align  4
@@ -37,31 +32,20 @@ Cambridge, MA 02139, USA.  */
        .weak   clone
        __clone = __libc_clone
        clone   = __libc_clone
-__libc_clone:  
+
+__libc_clone:
        save    %sp,-96,%sp
+
        /* sanity check arguments */
        tst     %i0
        be      __clone_syscall_error
        tst     %i1
        be      __clone_syscall_error
-       cmp     %i3,0
-       bl      __clone_syscall_error
-        nop
-
-       /* Flush the register windows */
-       ta      3
+       nop
 
-       /* Parameters for system call */        
+       /* Do the system call */
        mov     %i1,%o1
        mov     %i2,%o0
-
-       /* parameters that are on the stack for routine */
-#define P(x) 0x5c+(x*4)
-       ld      [%fp+P(0)],%o2
-       ld      [%fp+P(1)],%o3
-       ld      [%fp+P(2)],%o4
-       ld      [%fp+P(3)],%o5
-       /* Do the system call */
        set     __NR_clone,%g1
        ta      0x10
        bcs     __clone_syscall_error
@@ -71,7 +55,7 @@ __libc_clone:
        mov     %o0,%i0
        ret
        restore
-       
+
 __clone_syscall_error:
        call    __errno_location
        set     EINVAL,%i0
@@ -81,8 +65,7 @@ __clone_syscall_error:
        restore
 
 __thread_start:
-       mov     %i5,%o1
        call    %i0
-       mov     %i4,%o0
+       mov     %i3,%o0
        call    _exit,0
        nop