On 12/25/2014 12:34 PM, Taras Kondratiuk wrote:
On 12/24/2014 12:21 PM, Maxim Uvarov wrote:
On 12/23/2014 07:15 PM, Taras Kondratiuk wrote:
Linux-generic shouldn't have arch specific parts, because it is
*generic*. Instead it can fall back to strong __sync functions if
__atomic are not available.
Taras I think that even linux-generic should have it's own requirements.
It might be compiler version.
Dependence on libssl. Kernel version and etc.
We do not say that linux-generic should work on any linux, even 20 years
old. We just define needed requirements
to compile it. The same is with atomics. Instead of creating 20 branches
for all gcc and not gcc version we just
stick with more fresh gcc and say that it's minimal requirement to run
linux-generic.
I don't think it worth to make such a tight restriction to use only gcc
4.7+. Having fallback to __sync_* function will relax it to something
like gcc 4.1+. Sure performance will be worse, but it should be ok for
linux-generic.
Why it is ok? If possible we need to make linux-generic version fast.
Support of old gcc is not required. If it's needed for somebody he can
do this in his own platform.
Maxim.
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