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sbaranga-arm avatar sbaranga-arm commented on May 12, 2024

R_MORELLO_JUMP_SLOT being under-document - fair point.

Changing the fragment encoding also makes sense to me (although I wonder if we could also change the R_MORELLO_RELATIVE fragment encoding to make use of a build instruction).

from abi-aa.

jrtc27 avatar jrtc27 commented on May 12, 2024

You could but it makes adding a non-zero relocbase awkward since there isn't a single instruction in Morello to increment the base without altering the length. You might be able to abuse the fact that Morello tag clears on invalid SCBNDS though to fake it; I think "get offset, add (relocbase - offset), set bounds to current length, add original base, build" works (but for us would trap horribly with "what on earth are you doing, no"), and is no less efficient than the current fragment processing.

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