Those stub sections are generated by the linker, not by gcc itself, so any documentation would be associated with the linker. That said, I don't think the GNU linker provides any documentation for them either.
The sections are named 'glue' because they glue together ARM and Thumb code. I assume the 7 is there because the ARM7 was the first one to support Thumb code. .glue_7 is used for ARM code calling Thumb code, and .glue_7t is used for Thumb code calling ARM code. |
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