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To: "Joel Brobecker" <brobecker@adacore.com>, "Pierre Muller" 	 <pierre.muller@ics-cnrs.unistra.fr>
Cc: Peter.Schauer@regent.e-technik.tu-muenchen.de, gdb@sourceware.org,  	"'Joseph S. Myers'" <joseph@codesourcery.com>, "'Pedro Alves'" 	 <pedro@codesourcery.com>
From: "Pieter Maljaars" <pieter.maljaars@altenpts.nl>
Reply-To: pieter.maljaars@altenpts.nl
Subject: Re: Question about solaris CANNOT_STEP_HW_WATCHPOINTS macro
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Date: Fri, 23 Apr 2010 07:42:00 -0000
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> Looks like a different bug is now occurring:
> 
>     (gdb) start
>     Temporary breakpoint 1 at 0x805067a: file foo.c, line 13.
>     Starting program: [...]/foo 
>     
>     Temporary breakpoint 1, main () at foo.c:13
>     13        myrec.x = 5;
>     (gdb) print myrec.x
>     $1 = 0
>     (gdb) watch myrec.x
>     Hardware watchpoint 2: myrec.x
>     (gdb) s
>     14        myrec.y = 3.4;

I have tested this with Solaris 2.10 and GDB-7.1. I have removed 
the CANNOT_STEP_HW_WATCHPOINT define.  Here this bug does not occur.

    (gdb) start
    Temporary breakpoint 1 at 0x8050681: file watchp.c, line 13.
    Starting program: [...]/watchp

    Temporary breakpoint 1, main () at watchp.c:13
    13        myrec.x = 5;
    (gdb) print myrec.x
    $1 = 0
    (gdb) watch myrec.x
    Hardware watchpoint 2: myrec.x
    (gdb) s
    Hardware watchpoint 2: myrec.x
    
    Old value = 0
    New value = 5
    main () at watchp.c:14
    14        myrec.y = 3.4;


Here it works as expected.  GDB stops also at the other watchpoint.
So with "step" and "continue" both watchpoints are triggered, like
it behaves on x86-linux.

Pieter Maljaars