Hi Folks,
This is a work in progress. It builds on v7, but I've not tested yet.
We've a few dependency issues building this on F19 just now, but it will build for v7 against 2.2.3 on F18 as well locally. If someone with more knowledge of mongo would like to take a poke/test, cool. I have done a literal port of the x86_64 implementation (hence it contains a few superfluous bits intentionally). It'll need cleaning up.
Jon.
On 02/19/2013 04:38 PM, Jon Masters wrote:
We've a few dependency issues building this on F19 just now, but it will build for v7 against 2.2.3 on F18 as well locally. If someone with more knowledge of mongo would like to take a poke/test, cool. I have done a literal port of the x86_64 implementation (hence it contains a few superfluous bits intentionally). It'll need cleaning up.
Aieeee! is there any reason not to use GCC builtins for this?
Andrew.
On 02/19/2013 11:38 AM, Andrew Haley wrote:
On 02/19/2013 04:38 PM, Jon Masters wrote:
We've a few dependency issues building this on F19 just now, but it will build for v7 against 2.2.3 on F18 as well locally. If someone with more knowledge of mongo would like to take a poke/test, cool. I have done a literal port of the x86_64 implementation (hence it contains a few superfluous bits intentionally). It'll need cleaning up.
Aieeee! is there any reason not to use GCC builtins for this?
None...ish. There's the newer builtins I wrote about but that would introduce a minimal compiler dependency (in the Linux case, not sure about the Windows case - and the x86 code is not Linux specific, though the ARM stuff I did is because there is no other good way to do it without the use of the helpers). For now, I went with the same theme as they already had (doing it arch-specific) but when I ping upstream I will suggest they strongly consider finding a way to do it generically.
</stream of consciousness...>
Jon.
On 02/19/2013 04:57 PM, Jon Masters wrote:
On 02/19/2013 11:38 AM, Andrew Haley wrote:
On 02/19/2013 04:38 PM, Jon Masters wrote:
We've a few dependency issues building this on F19 just now, but it will build for v7 against 2.2.3 on F18 as well locally. If someone with more knowledge of mongo would like to take a poke/test, cool. I have done a literal port of the x86_64 implementation (hence it contains a few superfluous bits intentionally). It'll need cleaning up.
Aieeee! is there any reason not to use GCC builtins for this?
None...ish. There's the newer builtins I wrote about but that would introduce a minimal compiler dependency (in the Linux case, not sure about the Windows case - and the x86 code is not Linux specific, though the ARM stuff I did is because there is no other good way to do it without the use of the helpers).
I see. The GCC builtins have been in for quite a long time, but not quite as long as the 32-bit kernel helper. However, the 64-bit kernel helper is pretty new IIRC so I suspect you might as well use the builtins.
Andrew.
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Andrew Haley -
Jon Masters