Re: [PATCH 1/1] pfunct: Don't print functions twice when using -f

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On Thu, Jan 02, 2025 at 11:21:16PM +0000, Ihor Solodrai wrote:
> On Monday, December 30th, 2024 at 11:36 AM, Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> wrote:
> 
> > 
> > 
> > We print it in the pfunct_stealer, i.e. as soon as we load the CU
> > containing the function information, and then, later, we were iterating
> > all cus and printing the functions that matched.
> > 
> > Do it just at the stealer.
> > 
> > Cc: Alan Maguire alan.maguire@xxxxxxxxxx
> > 
> > Cc: Andrii Nakryiko andrii@xxxxxxxxxx
> > 
> > Cc: Eduard Zingerman eddyz87@xxxxxxxxx
> > 
> > Cc: Ihor Solodrai ihor.solodrai@xxxxx
> > 
> > Cc: Mykola Lysenko mykolal@xxxxxx
> > 
> > Link: https://lore.kernel.org/all/Z3LoTvt7PtUAbh5K@x1
> > Signed-off-by: Arnaldo Carvalho de Melo acme@xxxxxxxxxx
> 
> Can confirm this fixes double-printing of some functions when
> running pfunct -F dwarf
> 
> Tested-by: Ihor Solodrai <ihor.solodrai@xxxxx>

Thanks, added to the cset.

- Arnaldo
 
> > 
> > ---
> > pfunct.c | 11 ++++-------
> > 1 file changed, 4 insertions(+), 7 deletions(-)
> > 
> > diff --git a/pfunct.c b/pfunct.c
> > index 55eafe8a8e790dcb..5a6dd59a1c7a30b1 100644
> > --- a/pfunct.c
> > +++ b/pfunct.c
> > @@ -415,14 +415,12 @@ static void function__show(struct function *func, struct cu *cu)
> > fstats->printed = true;
> > 
> > }
> > 
> > -static int cu_function_iterator(struct cu *cu, void *cookie)
> > +static int cu_function_iterator(struct cu *cu, void *cookie __maybe_unused)
> > {
> > struct function *function;
> > uint32_t id;
> > 
> > cu__for_each_function(cu, id, function) {
> > - if (cookie && strcmp(function__name(function), cookie) != 0)
> > - continue;
> > function__show(function, cu);
> > }
> > return 0;
> > @@ -816,10 +814,9 @@ try_sole_arg_as_function_name:
> > function__show(f, cu);
> > } else if (show_total_inline_expansion_stats)
> > print_total_inline_stats();
> > - else if (function_name != NULL || expand_types)
> > - cus__for_each_cu(cus, cu_function_iterator,
> > - function_name, NULL);
> > - else
> > + else if (expand_types)
> > + cus__for_each_cu(cus, cu_function_iterator, NULL, NULL);
> > + else if (function_name == NULL)
> > print_fn_stats(formatter);
> > 
> > rc = EXIT_SUCCESS;
> > --
> > 2.46.2




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