Re: [PATCH 05/48] perf dwarf-aux: Move #ifdef code to the header file

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On Wed, 11 Oct 2023 20:50:28 -0700
Namhyung Kim <namhyung@xxxxxxxxxx> wrote:

> It's a usual convention that the conditional code is handled in a header
> file.  As I'm planning to add some more of them, let's move the current
> code to the header first.

OK, looks good to me.

Acked-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>

Thanks,

> 
> Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
> Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
> ---
>  tools/perf/util/dwarf-aux.c |  7 -------
>  tools/perf/util/dwarf-aux.h | 19 +++++++++++++++++--
>  2 files changed, 17 insertions(+), 9 deletions(-)
> 
> diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c
> index 4849c3bbfd95..adef2635587d 100644
> --- a/tools/perf/util/dwarf-aux.c
> +++ b/tools/perf/util/dwarf-aux.c
> @@ -1245,13 +1245,6 @@ int die_get_var_range(Dwarf_Die *sp_die, Dwarf_Die *vr_die, struct strbuf *buf)
>  out:
>  	return ret;
>  }
> -#else
> -int die_get_var_range(Dwarf_Die *sp_die __maybe_unused,
> -		      Dwarf_Die *vr_die __maybe_unused,
> -		      struct strbuf *buf __maybe_unused)
> -{
> -	return -ENOTSUP;
> -}
>  #endif
>  
>  /*
> diff --git a/tools/perf/util/dwarf-aux.h b/tools/perf/util/dwarf-aux.h
> index 7ec8bc1083bb..4f5d0211ee4f 100644
> --- a/tools/perf/util/dwarf-aux.h
> +++ b/tools/perf/util/dwarf-aux.h
> @@ -121,7 +121,6 @@ int die_get_typename(Dwarf_Die *vr_die, struct strbuf *buf);
>  
>  /* Get the name and type of given variable DIE, stored as "type\tname" */
>  int die_get_varname(Dwarf_Die *vr_die, struct strbuf *buf);
> -int die_get_var_range(Dwarf_Die *sp_die, Dwarf_Die *vr_die, struct strbuf *buf);
>  
>  /* Check if target program is compiled with optimization */
>  bool die_is_optimized_target(Dwarf_Die *cu_die);
> @@ -130,4 +129,20 @@ bool die_is_optimized_target(Dwarf_Die *cu_die);
>  void die_skip_prologue(Dwarf_Die *sp_die, Dwarf_Die *cu_die,
>  		       Dwarf_Addr *entrypc);
>  
> -#endif
> +#ifdef HAVE_DWARF_GETLOCATIONS_SUPPORT
> +
> +/* Get byte offset range of given variable DIE */
> +int die_get_var_range(Dwarf_Die *sp_die, Dwarf_Die *vr_die, struct strbuf *buf);
> +
> +#else /*  HAVE_DWARF_GETLOCATIONS_SUPPORT */
> +
> +static inline int die_get_var_range(Dwarf_Die *sp_die __maybe_unused,
> +				    Dwarf_Die *vr_die __maybe_unused,
> +				    struct strbuf *buf __maybe_unused)
> +{
> +	return -ENOTSUP;
> +}
> +
> +#endif /* HAVE_DWARF_GETLOCATIONS_SUPPORT */
> +
> +#endif /* _DWARF_AUX_H */
> -- 
> 2.42.0.655.g421f12c284-goog
> 


-- 
Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>




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