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From: "mathieu.malaterre at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/104363] hppa: __asm__ directive .global and multiple
 .symver not supported
Date: Mon, 07 Feb 2022 08:18:40 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104363

--- Comment #8 from Mathieu Malaterre <mathieu.malaterre at gmail dot com> =
---
Dear John,

(In reply to John David Anglin from comment #6)
> For context, see:
> https://github.com/smuellerDD/libkcapi/issues/133#issuecomment-1024349323
>=20
> Note that the following commit fixes the symbol issue on hppa with gcc-11:
> https://github.com/smuellerDD/libkcapi/commit/
> 71d80bcffca26373149121e026d612146b4695d5

As mentionned in the commit message, this is an alternate solution (use of
gcc-10 new attribute for `symver`).

> The patch predates the hppa issue and it doesn't have anything to do
> with hppa.  It does mention -flto but this doesn't seem to apply here.

Use of -flto seems to confict with the use of asm .symver directive, which =
is
solved by using gcc attribute.

> As far as I remember, support for symbol versioning is done in generic co=
de.
>=20
> If I was to guess, I suspect the problem is with asm.  Maybe a '\t'
> is needed before .symver on hppa.  The hppa assembler wants white space
> before directives.

That would not explain the regression gcc-10 -> gcc-11 AFAIK.=