* tls-dialect gnu2
@ 2017-07-27 22:07 Nathan Sidwell
2017-07-27 22:30 ` H.J. Lu
0 siblings, 1 reply; 2+ messages in thread
From: Nathan Sidwell @ 2017-07-27 22:07 UTC (permalink / raw)
To: Jan Hubicka; +Cc: GCC Patches
Jan,
I notice the x86 default -mtls-dialect is GNU not GNU2. The latter was
added in 2006. Is there a reason not to default to it now? (perhaps
because of the ldso dependency?)
nathan
--
Nathan Sidwell
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: tls-dialect gnu2
2017-07-27 22:07 tls-dialect gnu2 Nathan Sidwell
@ 2017-07-27 22:30 ` H.J. Lu
0 siblings, 0 replies; 2+ messages in thread
From: H.J. Lu @ 2017-07-27 22:30 UTC (permalink / raw)
To: Nathan Sidwell; +Cc: Jan Hubicka, GCC Patches
On Thu, Jul 27, 2017 at 3:07 PM, Nathan Sidwell <nathan@acm.org> wrote:
> Jan,
> I notice the x86 default -mtls-dialect is GNU not GNU2. The latter was
> added in 2006. Is there a reason not to default to it now? (perhaps
> because of the ldso dependency?)
You may have noticed. There is zero test for -mtls-dialect=gnu2 on x86
in GCC and I only added one -mtls-dialect-gnu2 in glibc last year when
I fixed GNU2 TLS bug in glibc:
https://sourceware.org/bugzilla/show_bug.cgi?id=20309
So effectively, there is very little test for -mtls-dialect-gnu2 on x86.
--
H.J.
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