Re: [Qemu-devel] Re: [5998] Fix TARGET_LONG_BITS warning in TCG

["Blue Swirl" <blauwirbel@gmail.com>]

On 12/13/08, Jan Kiszka <jan.kiszka@web.de> wrote:
> Blue Swirl wrote:
>  > Revision: 5998
>  >           http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5998
>  > Author:   blueswir1
>  > Date:     2008-12-13 08:16:43 +0000 (Sat, 13 Dec 2008)
>  >
>  > Log Message:
>  > -----------
>  > Fix TARGET_LONG_BITS warning in TCG
>  >
>  > Looking at tcg/tcg.c:828, the bug that the warning indicated would show up as
>  > incorrect PC shown in log, only on 32 bit big endian host emulating a 64 bit
>  > target, -d op flag enabled. Now that dyngen is gone, the patch can be applied.
>  >
>  > Modified Paths:
>  > --------------
>  >     trunk/tcg/tcg-runtime.c
>  >
>  > Modified: trunk/tcg/tcg-runtime.c
>  > ===================================================================
>  > --- trunk/tcg/tcg-runtime.c   2008-12-12 20:02:52 UTC (rev 5997)
>  > +++ trunk/tcg/tcg-runtime.c   2008-12-13 08:16:43 UTC (rev 5998)
>  > @@ -29,6 +29,7 @@
>  >
>  >  #include "config.h"
>  >  #include "osdep.h"
>  > +#include "cpu.h" // For TARGET_LONG_BITS
>  >  #include "tcg.h"
>  >
>  >  int64_t tcg_helper_shl_i64(int64_t arg1, int64_t arg2)
>  >
>
>
> Nice that this warning is finally fixed - but what is the point of
>  including all those headers at all here? [1] worked well for me while
>  reducing dependencies.

I think all header files should be checked and even reorganized when
necessary. One item is the dyngen removal, cpu.h/exec.h distinction is
not clear for all targets and headers used by both user and system
emulators could be adjusted. Header files in hw should be OK, but
worth checking.