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[Bug libc/18472] New: Obsolete syscall wrappers should be compat symbols


https://sourceware.org/bugzilla/show_bug.cgi?id=18472

            Bug ID: 18472
           Summary: Obsolete syscall wrappers should be compat symbols
           Product: glibc
           Version: 2.21
            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: *-*-linux*

The following Linux syscalls are obsolete and the corresponding wrappers in
glibc should be compat symbols: bdflush create_module get_kernel_syms
query_module uselib.  (Note that syscalls.list doesn't currently have support
for compat symbols with SHLIB_COMPAT conditionals, so that would need adding;
new architectures should not have these symbols at all.)

The syscalls create_module get_kernel_syms query_module no longer exist as of
Linux 2.6.  bdflush does nothing as of Linux 2.6, and uselib was part of the
mechanism for loading a.out shared libraries and is irrelevant with ELF.  Thus,
all of those syscalls are useless with current glibc.

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