Re: [PATCH 6/7] Move fixup_partial_die to partial_die_info::fixup

[Pedro Alves <palves at redhat dot com>]

On 01/25/2018 09:38 AM, Yao Qi wrote:

> diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
> index 0ee102a..9b6f2ec 100644
> --- a/gdb/dwarf2read.c
> +++ b/gdb/dwarf2read.c
> @@ -1410,6 +1410,11 @@ struct partial_die_info
>         load_partial_dies.   */
>      partial_die_info& operator=(const partial_die_info& rhs) = delete;
>  
> +    /* Adjust the partial die before generating a symbol for it.  This
> +       function may set the is_external flag or change the DIE's
> +       name.  */
> +    void fixup (struct dwarf2_cu *cu);
> +
>      /* Offset of this DIE.  */
>      const sect_offset sect_off;
>  
> @@ -1442,9 +1447,6 @@ struct partial_die_info
>      /* Flag set if any of the DIE's children are template arguments.  */
>      unsigned int has_template_arguments : 1;
>  
> -    /* Flag set if fixup_partial_die has been called on this die.  */
> -    unsigned int fixup_called : 1;
> -
>      /* Flag set if DW_TAG_imported_unit uses DW_FORM_GNU_ref_alt.  */
>      unsigned int is_dwz : 1;
>  
> @@ -1519,10 +1521,13 @@ struct partial_die_info
>        has_byte_size = 0;
>        has_const_value = 0;
>        has_template_arguments = 0;
> -      fixup_called = 0;
> +      m_fixup_called = false;
>        is_dwz = 0;
>        spec_is_dwz = 0;
>      }
> +
> +    /* Flag set if fixup has been called on this die.  */
> +    bool m_fixup_called : 1;
>    };
Currently, the boolean bits were all together for packing.
This moves the bit away from the others, after some pointer
fields, I think.  This is probably growing the size of
the structure with some padding holes.

Thanks,
Pedro Alves