System specific code for Linux/CRIS.

diff --git a/sysdeps/unix/sysv/linux/cris/sysdep.S b/sysdeps/unix/sysv/linux/cris/sysdep.S
new file mode 100644 (file)
index 0000000..4a108db
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/cris/sysdep.S
@@ -0,0 +1,74 @@
+/* Copyright (C) 2001 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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+/* Make space for the errno variable.  */
+
+       .globl  C_SYMBOL_NAME(errno)
+       .type   C_SYMBOL_NAME(errno),@object
+       .lcomm  C_SYMBOL_NAME(errno),4
+
+weak_alias (errno, _errno)
+
+/* The syscall stubs jump here when they detect an error, bot for PIC and
+   non-PIC.  */
+
+       .syntax no_register_prefix
+
+ENTRY (__syscall_error)
+       neg.d   r10,r10
+
+#ifdef _LIBC_REENTRANT
+       push    r10
+       push    srp
+
+       /* Note that __syscall_error is only visible within this library,
+          and no-one passes it on as a pointer, so can assume that R0 (GOT
+          pointer) is correctly set up.  */
+       PLTCALL (__errno_location)
+
+       pop     srp
+       pop     r11
+       move.d  r11,[r10]
+
+#else /* not _LIBC_REENTRANT */
+# ifdef __PIC__
+       move.d  [r0+C_SYMBOL_NAME(errno:GOT)],r9
+       move.d  r10,[r9]
+# else
+       move.d  r10,[C_SYMBOL_NAME(errno)]
+# endif
+#endif /* _LIBC_REENTRANT */
+
+#ifdef __PIC__
+/* PIC callers are supposed to have R0 on stack, ready for us to restore.
+   Callers are only allowed from within this DSO, so the GOT in r0 is the
+   one we want to use.
+
+   (Don't use "ret" - it's a macro).   */
+
+       moveq   -1,r10
+       Ret
+       pop     r0
+#else
+       Ret
+       moveq   -1,r10
+#endif
+
+END (__syscall_error)