Sat Feb 10 13:09:03 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/m68k/brk.c,
	sysdeps/unix/sysv/linux/m68k/mmap.S,
	sysdeps/unix/sysv/linux/m68k/select.S,
	sysdeps/unix/sysv/linux/m68k/sigcontext.h,
	sysdeps/unix/sysv/linux/m68k/sigreturn.S,
	sysdeps/unix/sysv/linux/m68k/socket.S,
	sysdeps/unix/sysv/linux/m68k/syscall.S,
	sysdeps/unix/sysv/linux/m68k/sysdep.S,
	sysdeps/unix/sysv/linux/m68k/sysdep.h: New files.
	* sysdeps/unix/sysv/linux/m68k/brk.c,
	sysdeps/unix/sysv/linux/m68k/mmap.S,
	sysdeps/unix/sysv/linux/m68k/select.S,
	sysdeps/unix/sysv/linux/m68k/sigcontext.h,
	sysdeps/unix/sysv/linux/m68k/sigreturn.S,
	sysdeps/unix/sysv/linux/m68k/socket.S,
	sysdeps/unix/sysv/linux/m68k/syscall.S,
	sysdeps/unix/sysv/linux/m68k/sysdep.S,
	sysdeps/unix/sysv/linux/m68k/sysdep.h: New files.

1 files changed, 71 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/m68k/sysdep.S b/sysdeps/unix/sysv/linux/m68k/sysdep.S
new file mode 100644
index 0000000000..895ea2770b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/m68k/sysdep.S
@@ -0,0 +1,71 @@
+/* Copyright (C) 1996 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 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* 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
+errno:	.space 4
+	.size errno,4
+	.globl _errno
+	.type _errno,@object
+_errno = errno	/* This name is expected by hj libc.so.5 startup code.  */
+	.text
+
+/* The following code is not used at all in the shared library.
+   The PIC system call stubs set errno themselves.  */
+
+#ifndef	PIC
+
+#include <sysdep.h>
+#define _ERRNO_H
+#include <errnos.h>
+
+.globl errno
+.globl __syscall_error
+
+/* The syscall stubs jump here when they detect an error.  */
+
+.globl __syscall_error
+__syscall_error:
+	neg.l %d0
+
+#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
+	/* We translate the system's EWOULDBLOCK error into EAGAIN.
+	   The GNU C library always defines EWOULDBLOCK==EAGAIN.
+	   EWOULDBLOCK_sys is the original number.  */
+	move.l #EWOULDBLOCK_sys, %d1
+	cmp.l %d0, %d1
+	jne 1f
+	move.l #EAGAIN, %d0
+1:
+#endif
+
+	move.l %d0, errno
+	move.l #-1, %d0
+	/* Copy return value to %a0 for syscalls that are declared to
+	   return a pointer.  */
+	move.l %d0, %a0
+	rts
+#endif /* PIC */