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[Bug gas/25381] Support section flag 'o' (SHF_LINK_ORDER)

From: hjl.tools at gmail dot com
Subject: [Bug gas/25381] Support section flag 'o' (SHF_LINK_ORDER)
Date: Sat, 01 Feb 2020 14:47:11 +0000


--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
gABI says

This flag adds special ordering requirements for link editors. The requirements
apply if the sh_link field of this section's header references another section
(the linked-to section). If this section is combined with other sections in the
output file, it must appear in the same relative order with respect to those
sections, as the linked-to section appears with respect to sections the
linked-to section is combined with.
 A typical use of this flag is to build a table that references text or data
sections in address order.

But __patchable_function_entries section doesn't have requirement on section
order.  All it requires that __patchable_function_entries section must be
treated as a group together with the section it references.

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