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These on rolling launch Linux distributions that adapt shortly to new toolchain updates discover that Simple Anti Cheat (EAC)-enabled video games break when run on the lately launched Glibc 2.36. The break is as a result of the DT_HASH part was eliminated within the GNU C library, however EAC is among the many few software program nonetheless anticipating that part as an alternative of DT_GNU_HASH.
Glibc 2.36 introduced many adjustments with its launch in early August. Sadly, eradicating the unconditional “–hash-style=each” setting to make sure that the DT_HASH and GNU_DT_HASH sections are current within the GNU C library shared object ended up breaking Simple Anti Cheat and different choose software program. As soon as Arch Linux customers and others began transferring to Glibc 2.36, Linux players have been fast to note points with Steam Play and titles that used this anti-cheat safety from Epic Video games till now.
DT_GNU_HASH is best structured than DT_HASH, although DT_HASH for hash tables of ELF objects for image decision at runtime. DT_GNU_HASH has been round for a decade and a half and may result in a lot sooner hyperlink and cargo instances. Most Linux distributions and open supply software program have been fortunately utilizing DT_GNU_HASH for years.
A Proton subject from earlier this month has been monitoring how Glibc 2.36 breaks EAC-required video games on Linux.
With Glibc 2.36, DT_HASH is not set as a result of they eliminated “–hash-style=each” since DT_GNU_HASH is superior, most methods ought to simply use that, and eradicating the DT_HASH part saves about 1% or 16kB of area for the Glibc Shared Object. But it surely seems that Epic Video games nonetheless depends on DT_HASH and this anti-cheat module won’t be able to load Glibc 2.36 protected video games.
This isn’t completely an EAC subject, however another applications like libstrangle now additionally crash in Glibc 2.36 on account of this modification. There’s a bug report from Glibc upstream in regards to the subject, however no agency motion has but been taken because the upstream builders are hesitant to revert the change.
The difficulty over the previous week and a half has been totally mentioned on Valve’s Proton subject tracker. For these on Arch Linux the place the difficulty was first reported on account of their launch updates, glibc 2.36-2 is at the moment present process testing with that distribution package deal reverting the earlier hash type change in GNU Glibc, so each types are actually constructed. Linux players have already examined the upcoming Arch Linux package deal replace and confirmed that EAC-enabled video games work correctly.
We are going to now see what occurs to the builders of the GNU C library in relation to this or if they’ll wait and kick the ball in Epic Video games’ court docket to change from counting on DT_HASH to DT_GNU_HASH which has been extensively used on Linux methods for over a decade. .
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