Re: [PATCH v3] target/ppc: Fix 64-bit decrementer

[Richard Henderson]

On 9/17/21 7:10 AM, Cédric Le Goater wrote:
> On 9/17/21 16:00, Luis Fernando Fujita Pires wrote:
> > From: Cédric Le Goater <clg@kaod.org>
> > > > > +    target_long signed_value;
> > > > > +    target_long signed_decr;
> > > >
> > > > Since these values will be the results of sextract64, it's probably better to
> > > define them as int64_t.
> > >
> > > but then it breaks the code doing the logging on PPC32 targets :/
> >
> > You mean here?
>
> You need to define PPC_DEBUG_TB and compile the ppc-softmmu :
>
> ../hw/ppc/ppc.c: In function ‘__cpu_ppc_store_decr’:
> ../hw/ppc/ppc.c:883:12: error: format ‘%x’ expects argument of type ‘unsigned int’, but 
> argument 4 has type ‘int64_t’ {aka ‘long int’} [-Werror=format=]
>    883 |     LOG_TB("%s: " TARGET_FMT_lx " => " TARGET_FMT_lx "\n", __func__,
>        |            ^~~~~~
>    884 |                 decr, signed_value);
>        |                       ~~~~~~~~~~~~
>        |                       |
>        |                       int64_t {aka long int}
> ../hw/ppc/ppc.c:51:32: note: in definition of macro ‘LOG_TB’
>     51 | #  define LOG_TB(...) qemu_log(__VA_ARGS__)
>        |                                ^~~~~~~~~~~
> cc1: all warnings being treated as errors

So use PRIx64, as you're supposed to do.
Or, in fact, change this to a tracepoint.

r~