tree 0e53306098a162e0fed88f82e9bef0f1899f74ba
parent 9326300e4d3dbe943380b30766ed474d98df07ba
author Clément Chigot <chigot@adacore.com> 1696498172 +0200
committer Clément Chigot <chigot@adacore.com> 1697207019 +0200

ld: allow update of existing QNX stack note

Up to now, the linker would always create a QNX stack note from scratch.
However, object files could already have such note, ending up into
duplicates. QNX loader doesn't handle that.

Update the mechanism to first search through the input files for a .note
section holding a QNX stack note. If none are found, then a new section
is created into the stub file as before. This requires this search to be
done once the file have been opened, moving the whole logic a bit later
in the emulation process.

As part for this update, also allow to request an executable stack
without necessarily having to provide its size as well.  In this case, s
etup a default lazy stack of 0x1000.

ld/ChangeLog:

        * emultempl/nto.em (nto_create_QNX_note_section): New Function.
        (nto_lookup_QNX_note_section): New Function.
        (nto_add_note_section): Move the creation of the note section
        in the above new functions.
        (nto_create_output_section_statements): rename nto_after_open
        * testsuite/ld-aarch64/aarch64-nto.exp: add new test.
        * testsuite/ld-aarch64/nto-stack-note-3.d: New test.
        * testsuite/ld-aarch64/nto-stack-note.s: New test.