1 files changed, 104 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S
new file mode 100644
index 0000000000..15b822a4eb
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S
@@ -0,0 +1,104 @@
+/* Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
+   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 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.
+
+   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.  */
+
+#include <sysdep.h>
+
+/* Because the Linux version is in fact m68k/ELF and the start.? file
+   for this system (sysdeps/m68k/elf/start.S) is also used by The Hurd
+   and therefore this files must not contain the definition of the
+   `errno' variable (I don't know why, ask Roland), we have to define
+   it somewhere else.
+
+    ...and this place is here.  */
+	.bss
+	.globl	errno
+	.type errno,@object
+	.size errno,4
+errno:
+	.space	4
+weak_alias (errno, _errno)
+
+/* The following code is only used in the shared library when we
+   compile the reentrant version.  Otherwise each system call defines
+   each own version.  */
+
+/* The syscall stubs jump here when they detect an error.  */
+
+#undef CALL_MCOUNT
+#define CALL_MCOUNT
+
+	.text
+ENTRY(__syscall_error)
+#ifndef PIC
+#ifndef _LIBC_REENTRANT
+	lcr     %r2,%r2
+	basr    %r1,0
+.L0:    l       %r1,.L1-.L0(%r1)
+	st      %r2,0(0,%r1)
+	lhi     %r2,-1
+	br      %r14
+.L1:    .long  errno
+#else
+	stm     %r11,%r15,44(%r15)
+	lr      %r0,%r15
+	ahi     %r15,-96
+	st      %r0,0(%r15)
+	lcr     %r11,%r2
+	basr    %r13,0
+.L0:	l       %r1,.L1-.L0(%r13)
+	basr    %r14,%r1
+	st      %r11,0(%r2)
+	lhi     %r2,-1
+	l       %r15,0(%r15)
+	lm      %r11,%r15,44(%r15)
+	br      %r14
+.L1:	.long  __errno_location
+#endif
+#else
+#ifndef _LIBC_REENTRANT
+	basr    %r1,0
+.L0:    al      %r1,.L1-.L0(%r1)
+	l       %r1,errno@GOT12(%r1)
+	lcr     %r2,%r2
+	st      %r2,0(0,%r1)
+	lhi     %r2,-1
+	br      %r14
+.L1:    .long   _GLOBAL_OFFSET_TABLE_-0b
+#else
+	stm     %r11,%r15,44(%r15)
+	lr      %r0,%r15
+	ahi     %r15,-96
+	st      %r0,0(%r15)
+	lcr     %r11,%r2
+	basr    %r13,0
+.L0:	l       %r12,.L1-.L0(%r13)
+	ar      %r12,%r13
+	l       %r14,.L2-.L0(%r13)
+	bas     %r14,0(%r14,%r13)
+	st      %r11,0(0,%r2)
+	lhi     %r2,-1
+	l       %r15,0(%r15)
+	lm      %r11,%r15,44(%r15)
+	br      %r14
+.L1:	.long _GLOBAL_OFFSET_TABLE_ - .L0
+.L2:    .long __errno_location@PLT - .L0
+#endif
+#endif
+
+END (__syscall_error)