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PING [PATCH] strip: Add GCC LTO IR support

H.J. Lu hjl.tools@gmail.com
Tue May 13 01:24:51 GMT 2025 
On Mon, May 5, 2025 at 2:20 PM H.J. Lu <hjl.tools@gmail.com> wrote:
>
> Add GCC LTO IR support to strip by copying GCC LTO IR input as unknown
> object file.  Don't enable LTO plugin in strip unless all LTO sections
> should be removed, assuming all LTO sections will be removed with
> -R .gnu.lto_.*.  Add linker LTO tests for strip with --strip-unneeded
> and GCC LTO IR inputs.
>
> binutils/
>
> PR binutils/21479
> * objcopy.c: Include "plugin-api.h" and "plugin.h".
> (lto_sections_removed): New.
> (command_line_switch): Add OPTION_PLUGIN.
> (strip_options): Likewise.
> (strip_usage): Display "--plugin NAME".
> (copy_unknown_file): New function.
> (copy_unknown_object): Call copy_unknown_file.
> (copy_archive): Copy input LTO IR member as unknown object.
> (copy_file): Set input target to "plugin" for strip if it is
> unset unless all LTO sections should be removed.  Copy input
> LTO IR file as unknown file.
> (strip_main): Call bfd_plugin_set_program_name. Handle
> OPTION_PLUGIN.  Set lto_sections_removed to true if all GCC
> LTO sections should be removed.
> * doc/binutils.texi: Document --plugin for strip.
>
> ld/
>
> PR binutils/21479
> * testsuite/ld-plugin/lto-binutils.exp: New file.
> * testsuite/ld-plugin/strip-1a-fat.c: Likewise.
> * testsuite/ld-plugin/strip-1a-fat.rd: Likewise.
> * testsuite/ld-plugin/strip-1b-fat.c: Likewise.
> * testsuite/ld-plugin/strip-1b-fat.rd: Likewise.
> * testsuite/ld-plugin/strip-1a.c: Likewise.
> * testsuite/ld-plugin/strip-1b.c: Likewise.
> * testsuite/lib/ld-lib.exp (run_cc_link_tests): Add optional
> trailing ld options.
>
> OK for master?
>
> Thanks.
>

Hi Nick, Alan, Jan,

Do you have any comments on this patch?

https://sourceware.org/pipermail/binutils/2025-May/140875.html

Thanks.

-- 
H.J.
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