------- Comment From i...@de.ibm.com 2021-08-11 10:36 EDT------- I think it rather has to do with glibc - ifunc are normally called quite early and therefore cannot use the dynamically resolved symbols, but maybe newer glibcs tolerate that. Unfortunately I couldn't find more information on this subject. The code seems to work, but just to be on the safe side I'd rather switch to the "old way" of doing things, that involves the hwcap argument:
https://bugzilla.linux.ibm.com/attachment.cgi?id=150618&action=diff#a/crc32.c_sec1 https://bugzilla.linux.ibm.com/attachment.cgi?id=150618&action=diff#a/crc32.c_sec3 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to zlib in Ubuntu. https://bugs.launchpad.net/bugs/1932010 Title: [21.10 FEAT] zlib CRC32 optimization for s390x Status in Ubuntu on IBM z Systems: In Progress Status in zlib package in Ubuntu: In Progress Bug description: Use SIMD instructions to accelerate the zlib CRC32 implementation. Business value: Performance improvement in database area The zlib CRC32 optimization for IBM Z is currently being discussed for inclusion into zlib-ng: https://github.com/zlib-ng/zlib-ng/pull/912 The patch for zlib will be based on that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1932010/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
