Missing "link", "times", and "gettimeofday" in mips-elf and mips64-elf libraries

[Fred Fish <fnf at specifix dot com>]

The gdb testsuite test "fileio.exp" fails to link due to missing
runtime functions "link", "times", and "gettimeofday".  Below is
how I hacked around this for the moment, but probably only the 
addition of "link" is suitable for inclusion in the mainline
sources.

2006-06-06  Fred Fish  <fnf@specifix.com>

	* link.c: New file.
	* mips/Makefile.in (GENOBJS): Add link.o.
	* config/mips.mt: Add makefile rule to build link.o
	* mips/syscalls.c (times, gettimeofday): Hack to add stubs
	to sidestep unresolved link time symbols.  Not intended to
	be a permanent fix.
 
Index: newlib/libgloss/link.c
===================================================================
RCS file: newlib/libgloss/link.c
diff -N newlib/libgloss/link.c
*** /dev/null	1 Jan 1970 00:00:00 -0000
--- newlib/libgloss/link.c	6 Jun 2006 17:39:48 -0000
***************
*** 0 ****
--- 1,29 ----
+ /* link.c -- make hard link
+  * 
+  * Copyright (c) 1995 Cygnus Support
+  *
+  * The authors hereby grant permission to use, copy, modify, distribute,
+  * and license this software and its documentation for any purpose, provided
+  * that existing copyright notices are retained in all copies and that this
+  * notice is included verbatim in any distributions. No written agreement,
+  * license, or royalty fee is required for any of the authorized uses.
+  * Modifications to this software may be copyrighted by their authors
+  * and need not follow the licensing terms described here, provided that
+  * the new terms are clearly indicated on the first page of each file where
+  * they apply.
+  */
+ #include <errno.h>
+ #include "glue.h"
+ 
+ /*
+  * link -- since we have no file system, 
+  *           we just return an error.
+  */
+ int
+ _DEFUN (link, (path1, path2),
+         char * path1 _AND
+ 	char * path2)
+ {
+   errno = EIO;
+   return (-1);
+ }
Index: newlib/libgloss/config/mips.mt
===================================================================
RCS file: /cvsroots/latest/src/newlib/libgloss/config/mips.mt,v
retrieving revision 1.1.1.1
diff -c -p -r1.1.1.1 mips.mt
*** newlib/libgloss/config/mips.mt	8 Oct 2005 19:45:26 -0000	1.1.1.1
--- newlib/libgloss/config/mips.mt	6 Jun 2006 15:09:52 -0000
*************** isatty.o: ${srcdir}/../isatty.c
*** 13,18 ****
--- 13,20 ----
  	$(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $?
  kill.o: ${srcdir}/../kill.c
  	$(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $?
+ link.o: ${srcdir}/../link.c
+ 	$(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $?
  lseek.o: ${srcdir}/../lseek.c
  	$(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $?
  open.o: ${srcdir}/../open.c
Index: newlib/libgloss/mips/Makefile.in
===================================================================
RCS file: /cvsroots/latest/src/newlib/libgloss/mips/Makefile.in,v
retrieving revision 1.1.1.1
diff -c -p -r1.1.1.1 Makefile.in
*** newlib/libgloss/mips/Makefile.in	8 Oct 2005 19:45:24 -0000	1.1.1.1
--- newlib/libgloss/mips/Makefile.in	6 Jun 2006 14:57:54 -0000
*************** OBJCOPY = `if [ -f ${objroot}/../binutil
*** 67,73 ****
  CRT0 = @crt0@
  PCRT0 = @pcrt0@
  GENOBJS = syscalls.o fstat.o getpid.o isatty.o kill.o \
! 	lseek.o print.o putnum.o stat.o unlink.o
  GENOBJS2 = open.o close.o read.o write.o
  IDTOBJS = idtmon.o @part_specific_obj@ ${GENOBJS}
  PMONOBJS = pmon.o @part_specific_obj@ ${GENOBJS}
--- 67,73 ----
  CRT0 = @crt0@
  PCRT0 = @pcrt0@
  GENOBJS = syscalls.o fstat.o getpid.o isatty.o kill.o \
! 	link.o lseek.o print.o putnum.o stat.o unlink.o
  GENOBJS2 = open.o close.o read.o write.o
  IDTOBJS = idtmon.o @part_specific_obj@ ${GENOBJS}
  PMONOBJS = pmon.o @part_specific_obj@ ${GENOBJS}
Index: newlib/libgloss/mips/syscalls.c
===================================================================
RCS file: /cvsroots/latest/src/newlib/libgloss/mips/syscalls.c,v
retrieving revision 1.1.1.1
diff -c -p -r1.1.1.1 syscalls.c
*** newlib/libgloss/mips/syscalls.c	8 Oct 2005 19:45:24 -0000	1.1.1.1
--- newlib/libgloss/mips/syscalls.c	6 Jun 2006 18:25:14 -0000
*************** sbrk (nbytes)
*** 43,45 ****
--- 43,65 ----
  
    return base;
  }
+ 
+ /* Everything below this line is a hack to supply stubs so that the gdb
+    testsuite (and possibly others) won't trip over undefined symbols.
+    There is probably a better way to fix this problem.  -fnf */
+ 
+ #include <errno.h>
+ 
+ clock_t
+ times ()
+ {
+   errno = ENOSYS;
+   return -1;
+ }
+ 
+ int
+ gettimeofday ()
+ {
+   errno = ENOSYS;
+   return -1;
+ }