(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

1 files changed, 77 insertions, 0 deletions

diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sh/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/sh/vfork.S
new file mode 100644
index 0000000000..f230c01226
--- /dev/null
+++ b/linuxthreads/sysdeps/unix/sysv/linux/sh/vfork.S
@@ -0,0 +1,77 @@
+/* Copyright (C) 2003, 2004 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep-cancel.h>
+#define _ERRNO_H	1
+#include <bits/errno.h>
+
+/* Clone the calling process, but without copying the whole address space.
+   The calling process is suspended until the new process exits or is
+   replaced by a call to `execve'.  Return -1 for errors, 0 to the new process,
+   and the process ID of the new process to the old process.  */
+
+ENTRY (__vfork)
+#ifdef SHARED
+	mov.l	.Lgot, r1
+	mova	.Lgot, r0
+	add	r0, r1
+	mov.l	.Lpthread_func, r0
+	mov.l	@(r0,r1), r0
+#else
+	mov.l	.Lpthread_create, r0
+#endif
+	tst	r0, r0
+	bf	.Lhidden_fork
+
+	mov.w	.L1, r3
+	trapa	#0x10
+	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	.Lpseudo_end
+	SYSCALL_ERROR_HANDLER
+.Lpseudo_end:
+	rts
+	 nop
+.L1:	.word	__NR_vfork
+	.align	2
+#ifdef SHARED
+.Lgot:
+	.long	_GLOBAL_OFFSET_TABLE_
+.Lpthread_func:
+	.long	__libc_pthread_functions@GOTOFF
+#else
+.Lpthread_create:
+	.weak	pthread_create
+	.long	pthread_create
+#endif
+
+.Lhidden_fork:	
+	mov.l	.L2, r1
+	braf	r1
+	 nop
+1:
+	.align 2
+.L2:	.long	HIDDEN_JUMPTARGET(__fork)-1b
+
+PSEUDO_END (__vfork)
+libc_hidden_def (__vfork)
+
+weak_alias (__vfork, vfork)