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Re: Slow _bfd_strip_section_from_output
On Mon, May 02, 2005 at 05:44:47PM -0700, H. J. Lu wrote:
> * bfdlink.h (bfd_link_order_type): Add bfd_input_link_order.
> (bfd_new_input_link_order): New.
Why ever did you need this? bfd_indirect_link_order is the one that's
used for input sections. Oh, I see. You're effectively making an
entirely new list which wastes memory using bfd_link_order structs. No,
I don't like it. Too quick and dirty. How about striving for some
elegance?
Hmm, I might take a look at this one myself. Here's the idea: Change
the type of link_order_head and link_order_tail to be a union, either a
struct bfd_link_order *, or asection *. Use these pointers to build
lists of input sections attached to an output section. Change
_bfd_strip_section_from_output to only set SEC_EXCLUDE on the input
section (or better, remove the function entirely). In
strip_excluded_output_sections, traverse the lists and strip any output
section that has all its input sections marked SEC_EXCLUDE. Also reset
the output section link_order pointers to NULL.
--
Alan Modra
IBM OzLabs - Linux Technology Centre