[Bug libc/23848] New: [sparc] Some socket syscalls wrongly assumed to be present

["jsm28 at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=23848

            Bug ID: 23848
           Summary: [sparc] Some socket syscalls wrongly assumed to be
                    present
           Product: glibc
           Version: 2.28
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
          Assignee: unassigned at sourceware dot org
          Reporter: jsm28 at gcc dot gnu.org
                CC: drepper.fsp at gmail dot com
  Target Milestone: ---
              Host: sparc*-*-linux*

The SPARC kernel-features.h does not undefine some __ASSUME_* macros for socket
syscalls for 32-bit, even though those syscalls (sendmsg recvmsg sendto) were
only added for 32-bit in Linux 4.4 and the macros in question are defined by
default.  Furthermore, the SPARC64 syscalls.list has entries for bind, listen
and setsockopt, despite those syscalls only being added in 4.4, so meaning a
build with post-4.4 headers would assume the syscalls to be present regardless
of --enable-kernel version (this is a SPARC version of bug 19682 which was the
corresponding S/390 issue).

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