[Bug binutils/30592] New: objcopy --set-section-flags: support "large" for SHF_X86_64_LARGE

[i at maskray dot me]

https://sourceware.org/bugzilla/show_bug.cgi?id=30592

            Bug ID: 30592
           Summary: objcopy --set-section-flags: support "large" for
                    SHF_X86_64_LARGE
           Product: binutils
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: i at maskray dot me
  Target Milestone: ---

Linkers may place SHF_X86_64_LARGE sections away from regular sections to
alleviate relocation overflow pressure [1]. It would be nice to have the
ability to add the SHF_X86_64_LARGE flag to sections in relocatable object
files, especially for prebuilt object files that the user cannot control.

I suggest that we allow   objcopy --set-section-flags .data=alloc,large
to set SHF_X86_64_LARGE.


[1]: https://maskray.me/blog/2023-05-14-relocation-overflow-and-code-models

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