as.info: PushSection

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`.pushsection NAME , SUBSECTION'

   This is one of the ELF section stack manipulation directives.  The
others are `.section' (*note Section::), `.subsection' (*note
SubSection::), `.popsection' (*note PopSection::), and `.previous'
(*note Previous::).
   This directive is a synonym for `.section'.  It pushes the current
section (and subsection) onto the top of the section stack, and then
replaces the current section and subsection with `name' and
`subsection'.