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


Alexandre Oliva wrote:
> 
> 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?

I'm not the sparc maintainer, but I did commit the changes that
caused you problems.  Sorry about that.  Your solution seems
correct -- I'll also have a look at using a few more ifdefs
in my new code.

				Michael Snyder

>     ---------------------------------------------------------------
> 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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