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From: "linkw at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/112980] 64-bit powerpc ELFv2 does not allow nops to be
 generated before function global entry point
Date: Tue, 02 Apr 2024 08:24:07 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112980

--- Comment #11 from Kewen Lin <linkw at gcc dot gnu.org> ---
(In reply to Giuliano Belinassi from comment #9)
> Yes, this is for userspace livepatching.
>=20
> Assume the following example:
> https://godbolt.org/z/b9M8nMbo1
>=20
> As one can see, the sequence of 14 nops are generated after the global
> function entry point. In such way we can't use the this space to place a
> trampoline to the new function. We need this sequence of nops to be placed
> *before* the global function entry point.
>=20

Hi Giuliano, thanks for the inputs!=