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-rw-r--r--sysdeps/unix/sysv/linux/sparc/clone.S63
1 files changed, 23 insertions, 40 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc/clone.S b/sysdeps/unix/sysv/linux/sparc/clone.S
index 875dcba64a..9e1ba812b0 100644
--- 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