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GDB 5.0 won't build on GNU/Linux/sparc


gdb/sparc-tdep.c contains code in supply_gregset() and fill_gregset()
that will only compile on Solaris/sparc.  glibc doesn't define
prgreg_t, R_I7, R_PS, R_PC, R_nPC nor R_Y.  In fact, registers from i0
to i7 aren't even available in glibc's gregset.  The solution is to
disable USE_PROC_FS, which can be accomplished by #including the
generic config/nm-linux.h from config/sparc/nm-linux.h, as all other
architecture-specific `nm-linux.h's do (actually, it's also missing
from config/powerpc/nm-linux.h).  Unfortunately, I don't have access to a
GNU/Linux/powerpc platform to test the second change.  On
GNU/Linux/sparc, it builds correctly, but it still doesn't work :-(
child_resume is called with step==1, and aborts because
SOFTWARE_SINGLE_STEP_P is also 1.  I'm investigating.  Meanwhile, ok
to install?  Release branch?

Index: gdb/ChangeLog
from  Alexandre Oliva  <aoliva@cygnus.com>

	* config/sparc/nm-linux.h: Include config/nm-linux.h.
	* config/powerpc/nm-linux.h: Likewise.

Index: gdb/config/sparc/nm-linux.h
===================================================================
RCS file: /cvs/src/src/gdb/config/sparc/nm-linux.h,v
retrieving revision 1.1.1.3
diff -u -r1.1.1.3 nm-linux.h
--- gdb/config/sparc/nm-linux.h	1999/12/07 03:56:12	1.1.1.3
+++ gdb/config/sparc/nm-linux.h	2000/05/20 07:06:17
@@ -1,5 +1,5 @@
 /* Macro definitions for running gdb on a Sparc running Linux.
-   Copyright (C) 1989, 1992, 1996, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1989, 1992, 1996, 1998, 2000 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -19,6 +19,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #include <nm-sysv4.h>
+#include "nm-linux.h"
 #include "solib.h"
 
 #define FETCH_INFERIOR_REGISTERS
Index: gdb/config/powerpc/nm-linux.h
===================================================================
RCS file: /cvs/src/src/gdb/config/powerpc/nm-linux.h,v
retrieving revision 1.1
diff -u -r1.1 nm-linux.h
--- gdb/config/powerpc/nm-linux.h	2000/02/22 01:19:11	1.1
+++ gdb/config/powerpc/nm-linux.h	2000/05/20 07:06:17
@@ -18,6 +18,9 @@
 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
 #ifndef NM_LINUX_H
+
+#include "nm-linux.h"
+
 #define NM_LINUX_H
 
 /* Return sizeof user struct to callers in less machine dependent routines */

-- 
Alexandre Oliva    Enjoy Guaranį, see http://www.ic.unicamp.br/~oliva/
Cygnus Solutions, a Red Hat company        aoliva@{redhat, cygnus}.com
Free Software Developer and Evangelist    CS PhD student at IC-Unicamp
oliva@{lsd.ic.unicamp.br, gnu.org}   Write to mailing lists, not to me

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