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-rw-r--r--libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S69
1 files changed, 69 insertions, 0 deletions
diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S
new file mode 100644
index 000000000..6dfeca86d
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S
@@ -0,0 +1,69 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>
+
+ 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)
+ basr %r1,0
+0:
+#ifdef SHARED
+ al %r1,4f-0b(%r1)
+ l %r1,0(%r1)
+ ltr %r1,%r1
+#else
+ icm %r1,15,4f-0b(%r1)
+#endif
+ jne 1f
+
+ /* Do vfork system call. */
+ svc SYS_ify (vfork)
+
+ /* Check for error. */
+ lhi %r4,-4095
+ clr %r2,%r4
+ jnl SYSCALL_ERROR_LABEL
+
+ /* Normal return. */
+ br %r14
+1:
+ basr %r1,0
+2:
+ al %r1,3f-2b(%r1)
+ br %r1
+3:
+ .long HIDDEN_JUMPTARGET(__fork)-2b
+4:
+#ifdef SHARED
+ .long __libc_pthread_functions-0b
+#else
+ .weak pthread_create
+ .long pthread_create
+#endif
+PSEUDO_END(__vfork)
+
+libc_hidden_def (__vfork)
+
+weak_alias (__vfork, vfork)