[Bug debugedit/32760] debugedit should handle .a static ar archive

[fche at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=32760

Frank Ch. Eigler <fche at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|ASSIGNED                    |RESOLVED

--- Comment #2 from Frank Ch. Eigler <fche at redhat dot com> ---
commit eaf5bfc1a67652530efc2a2037ca80ec63aba0f8
Author: Frank Ch. Eigler <fche@redhat.com>
Date:   Wed Jun 18 14:40:59 2025 -0400

    PR32760: find-debuginfo: handle static libraries

    Formerly, static .a libraries with debuginfo were ignored by
    find-debuginfo.  If unstripped, then the raw build-directory paths in
    them would leak into the downstream package.  New code in
    find-debuginfo looks for archive ".a" files in the build tree, and
    runs debugedit only to enumerate and rewrite source paths.  This
    allows ultimate users of the .a files to link in object files with all
    the debuginfo, except with usable (and debuginfod-resolvable) source
    file paths.

    This works by having find-debuginfo find .a files, extracting all
    the .o files one at a time, running debugedit, then repacking the
    files back into the .a.  do_file() delegates to do_ar_file(),
    doing rather less work than for .so/exec files.

    New autotest case covers duplicate-member-name functionality,
    including with cruelly whitespace named members.  Defaults off
    & skips testing unless ar support "O" (binutils > v2.31).

    Signed-off-by: Frank Ch. Eigler <fche@redhat.com>

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