Re: svn commit: r339898 - head/lib/libc/amd64/sys

2018-11-04 Thread Konstantin Belousov
On Sun, Nov 04, 2018 at 12:43:34AM -0700, Julian Elischer wrote:
> what's an ifunc?
> 
A special kind of relocation, controlled by the user code.
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[Bug 232911] Assembly code crashes clang

2018-11-04 Thread bugzilla-noreply
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=232911

Gerald Pfeifer  changed:

   What|Removed |Added

 CC||ger...@freebsd.org
   Assignee|standa...@freebsd.org   |toolch...@freebsd.org

--- Comment #1 from Gerald Pfeifer  ---
Reassigning to toolchain@ ; not that the upstream bug reported by Yuri
(thanks!) now has a much smaller reproducer.

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Re: svn commit: r339898 - head/lib/libc/amd64/sys

2018-11-04 Thread Dimitry Andric
On 4 Nov 2018, at 08:43, Julian Elischer  wrote:
> 
> what's an ifunc?

This is a GNU extension, an "indirect function".  It allows you to
provide multiple different implementations of the same function, for
instance optimized for specific CPU types, and choose between them at
dynamic link time (e.g. at run time).

See the following for more information:

https://sourceware.org/glibc/wiki/GNU_IFUNC
https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-ifunc-function-attribute

-Dimitry



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Re: FYI: qemu-ppc64-static and qemu-ppc-static "live-hang" when I attempt use with poudriere; qemu-arm-static and qemu-aarch64-static work

2018-11-04 Thread Mark Millard via freebsd-toolchain
On 2018-Nov-4, at 1:06 AM, Thomas Zander  wrote:

> On Fri, 1 Sep 2017 at 01:37, Mark Millard  wrote:
> 
>> [I show some of the target/ppc/translate.c source code
>> and related material this time. Not that I know enough
>> to patch it correctly.]
> 
> This is still an issue, correct?
> I tried to create a powerpc poudriere jail on 11.2 earlier today, with
> the same results.

Last I looked into it: unchanged. Your result tends to confirm the
status is unchanged.

===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)

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Re: FYI: qemu-ppc64-static and qemu-ppc-static "live-hang" when I attempt use with poudriere; qemu-arm-static and qemu-aarch64-static work

2018-11-04 Thread Thomas Zander
On Fri, 1 Sep 2017 at 01:37, Mark Millard  wrote:

> [I show some of the target/ppc/translate.c source code
> and related material this time. Not that I know enough
> to patch it correctly.]

This is still an issue, correct?
I tried to create a powerpc poudriere jail on 11.2 earlier today, with
the same results.

Riggs
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