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[Bug libc/19767] New: vdso is not used with static linking
- From: "nszabolcs at gmail dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Fri, 04 Mar 2016 17:19:56 +0000
- Subject: [Bug libc/19767] New: vdso is not used with static linking
- Auto-submitted: auto-generated
https://sourceware.org/bugzilla/show_bug.cgi?id=19767
Bug ID: 19767
Summary: vdso is not used with static linking
Product: glibc
Version: 2.22
Status: NEW
Severity: normal
Priority: P2
Component: libc
Assignee: unassigned at sourceware dot org
Reporter: nszabolcs at gmail dot com
CC: drepper.fsp at gmail dot com
Target Milestone: ---
vdso mechanism now uses ifunc dispatch which happens
too early in the static linking case so the vdso
mechanism is disabled even though the vdso mechanism
could easily work with static linking too.
this means clock_gettime etc calls will go through
slow syscalls in case of static linking.
bug 12813 was closed assuming performance does not
matter of static linking, but i think it does.
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