[Bug 1877633] [NEW] libseccomp 2.4.3 (and 2.4.2) is not correctly resolving (at least) the getrlimit syscall on arm64

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This was reported via the snapcraft forum[1]:

On bionic amd64, libseccomp 2.4.1-0ubuntu0.18.04.2

$ lsb_release -d
Description:	Ubuntu 18.04.4 LTS
$ scmp_sys_resolver -a aarch64 163
getrlimit
$ scmp_sys_resolver -a aarch64 getrlimit
163

focal amd64, libseccomp 2.4.3-1ubuntu1 -- *__BROKEN__*

$ lsb_release -d
Description:	Ubuntu 20.04 LTS
$ scmp_sys_resolver -a aarch64 163
UNKNOWN
$ scmp_sys_resolver -a aarch64 getrlimit
-10180

[1]https://forum.snapcraft.io/t/getrlimit-blocked-by-seccomp-on-focal-
arm64/17237/8

** Affects: libseccomp (Ubuntu)
     Importance: High
     Assignee: Alex Murray (alexmurray)
         Status: Confirmed

** Affects: libseccomp (Ubuntu Focal)
     Importance: High
     Assignee: Alex Murray (alexmurray)
         Status: Confirmed

** Affects: libseccomp (Ubuntu Groovy)
     Importance: High
     Assignee: Alex Murray (alexmurray)
         Status: Confirmed


** Tags: patch
-- 
libseccomp 2.4.3 (and 2.4.2) is not correctly resolving (at least) the getrlimit syscall on arm64
https://bugs.launchpad.net/bugs/1877633
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