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authorSiddhesh Poyarekar <siddhesh@sourceware.org>2021-09-03 22:06:44 +0530
committerSiddhesh Poyarekar <siddhesh@sourceware.org>2021-09-03 22:06:44 +0530
commit30891f35fa7da832b66d80d0807610df361851f3 (patch)
tree684c81cc6e88650313797fadaa642d714fcce8a8 /sysdeps/unix/sysv
parent04f2125c6eff341f9c52682866d1eea8d204c852 (diff)
downloadglibc-30891f35fa7da832b66d80d0807610df361851f3.tar.gz
glibc-30891f35fa7da832b66d80d0807610df361851f3.tar.xz
glibc-30891f35fa7da832b66d80d0807610df361851f3.zip
Remove "Contributed by" lines
We stopped adding "Contributed by" or similar lines in sources in 2012
in favour of git logs and keeping the Contributors section of the
glibc manual up to date.  Removing these lines makes the license
header a bit more consistent across files and also removes the
possibility of error in attribution when license blocks or files are
copied across since the contributed-by lines don't actually reflect
reality in those cases.

Move all "Contributed by" and similar lines (Written by, Test by,
etc.) into a new file CONTRIBUTED-BY to retain record of these
contributions.  These contributors are also mentioned in
manual/contrib.texi, so we just maintain this additional record as a
courtesy to the earlier developers.

The following scripts were used to filter a list of files to edit in
place and to clean up the CONTRIBUTED-BY file respectively.  These
were not added to the glibc sources because they're not expected to be
of any use in future given that this is a one time task:

https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc
https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps/unix/sysv')
-rw-r--r--sysdeps/unix/sysv/linux/accept4.c1
-rw-r--r--sysdeps/unix/sysv/linux/aio_misc.h1
-rw-r--r--sysdeps/unix/sysv/linux/alpha/clone.S1
-rw-r--r--sysdeps/unix/sysv/linux/alpha/gethostname.c1
-rw-r--r--sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S1
-rw-r--r--sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S1
-rw-r--r--sysdeps/unix/sysv/linux/alpha/ioperm.c1
-rw-r--r--sysdeps/unix/sysv/linux/alpha/rt_sigaction.S1
-rw-r--r--sysdeps/unix/sysv/linux/alpha/syscall.S1
-rw-r--r--sysdeps/unix/sysv/linux/alpha/sysdep.h1
-rw-r--r--sysdeps/unix/sysv/linux/arc/clone.S1
-rw-r--r--sysdeps/unix/sysv/linux/arm/clone.S1
-rw-r--r--sysdeps/unix/sysv/linux/arm/dl-procinfo.c1
-rw-r--r--sysdeps/unix/sysv/linux/arm/dl-procinfo.h1
-rw-r--r--sysdeps/unix/sysv/linux/arm/ioperm.c2
-rw-r--r--sysdeps/unix/sysv/linux/arm/readelflib.c2
-rw-r--r--sysdeps/unix/sysv/linux/arm/register-dump.h1
-rw-r--r--sysdeps/unix/sysv/linux/arm/sigcontextinfo.h1
-rw-r--r--sysdeps/unix/sysv/linux/arm/sysdep.h2
-rw-r--r--sysdeps/unix/sysv/linux/arm/vfork.S1
-rw-r--r--sysdeps/unix/sysv/linux/dl-librecon.h1
-rw-r--r--sysdeps/unix/sysv/linux/dl-openat64.c1
-rw-r--r--sysdeps/unix/sysv/linux/dl-origin.c1
-rw-r--r--sysdeps/unix/sysv/linux/fstatvfs.c1
-rw-r--r--sysdeps/unix/sysv/linux/generic/____longjmp_chk.c1
-rw-r--r--sysdeps/unix/sysv/linux/generic/bits/fcntl.h1
-rw-r--r--sysdeps/unix/sysv/linux/generic/bits/typesizes.h1
-rw-r--r--sysdeps/unix/sysv/linux/generic/chmod.c1
-rw-r--r--sysdeps/unix/sysv/linux/generic/chown.c1
-rw-r--r--sysdeps/unix/sysv/linux/generic/dl-origin.c1
-rw-r--r--sysdeps/unix/sysv/linux/generic/dup2.c1
-rw-r--r--sysdeps/unix/sysv/linux/generic/epoll_create.c1
-rw-r--r--sysdeps/unix/sysv/linux/generic/inotify_init.c1
-rw-r--r--sysdeps/unix/sysv/linux/generic/lchown.c1
-rw-r--r--sysdeps/unix/sysv/linux/generic/link.c1
-rw-r--r--sysdeps/unix/sysv/linux/generic/mkdir.c1
-rw-r--r--sysdeps/unix/sysv/linux/generic/pipe.c1
-rw-r--r--sysdeps/unix/sysv/linux/generic/readlink.c1
-rw-r--r--sysdeps/unix/sysv/linux/generic/rmdir.c1
-rw-r--r--sysdeps/unix/sysv/linux/generic/symlink.c1
-rw-r--r--sysdeps/unix/sysv/linux/generic/sysdep.h1
-rw-r--r--sysdeps/unix/sysv/linux/generic/unlink.c1
-rw-r--r--sysdeps/unix/sysv/linux/generic/wordsize-32/sendfile.c1
-rw-r--r--sysdeps/unix/sysv/linux/getcwd.c1
-rw-r--r--sysdeps/unix/sysv/linux/getipv4sourcefilter.c1
-rw-r--r--sysdeps/unix/sysv/linux/getpt.c1
-rw-r--r--sysdeps/unix/sysv/linux/getsourcefilter.c1
-rw-r--r--sysdeps/unix/sysv/linux/getsysstats.c1
-rw-r--r--sysdeps/unix/sysv/linux/grantpt.c1
-rw-r--r--sysdeps/unix/sysv/linux/hppa/atomic-machine.h1
-rw-r--r--sysdeps/unix/sysv/linux/hppa/clone.S2
-rw-r--r--sysdeps/unix/sysv/linux/hppa/getcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/hppa/makecontext.c1
-rw-r--r--sysdeps/unix/sysv/linux/hppa/setcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/hppa/swapcontext.c1
-rw-r--r--sysdeps/unix/sysv/linux/hppa/sysdep.h2
-rw-r--r--sysdeps/unix/sysv/linux/i386/clone.S1
-rw-r--r--sysdeps/unix/sysv/linux/i386/dl-librecon.h1
-rw-r--r--sysdeps/unix/sysv/linux/i386/dl-procinfo.h1
-rw-r--r--sysdeps/unix/sysv/linux/i386/getcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/i386/makecontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/i386/register-dump.h1
-rw-r--r--sysdeps/unix/sysv/linux/i386/setcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/i386/sigcontextinfo.h1
-rw-r--r--sysdeps/unix/sysv/linux/i386/swapcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/i386/sysdep.h1
-rw-r--r--sysdeps/unix/sysv/linux/i386/vfork.S1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/__ia64_longjmp.S1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/__longjmp.S1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/__sigstack_longjmp.c1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/__start_context.S1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/bits/setjmp.h1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/getcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/ioperm.c1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/makecontext.c1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/pipe.S1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/register-dump.h1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/setcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/setjmp.S1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/swapcontext.c1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/sys/io.h1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/sys/rse.h1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/syscall.S1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/sysdep.S1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/sysdep.h2
-rw-r--r--sysdeps/unix/sysv/linux/ia64/ucontext_i.h1
-rw-r--r--sysdeps/unix/sysv/linux/ifreq.c1
-rw-r--r--sysdeps/unix/sysv/linux/internal_statvfs.c1
-rw-r--r--sysdeps/unix/sysv/linux/kernel-posix-timers.h1
-rw-r--r--sysdeps/unix/sysv/linux/lddlibc4.c1
-rw-r--r--sysdeps/unix/sysv/linux/m68k/clone.S1
-rw-r--r--sysdeps/unix/sysv/linux/m68k/coldfire/atomic-machine.h1
-rw-r--r--sysdeps/unix/sysv/linux/m68k/getpagesize.c1
-rw-r--r--sysdeps/unix/sysv/linux/m68k/register-dump.h1
-rw-r--r--sysdeps/unix/sysv/linux/m68k/sigcontextinfo.h1
-rw-r--r--sysdeps/unix/sysv/linux/m68k/sysdep.h2
-rw-r--r--sysdeps/unix/sysv/linux/m68k/vfork.S1
-rw-r--r--sysdeps/unix/sysv/linux/mips/_test_and_set.c1
-rw-r--r--sysdeps/unix/sysv/linux/mips/clone.S1
-rw-r--r--sysdeps/unix/sysv/linux/mips/getcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/mips/makecontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/mips/readelflib.c4
-rw-r--r--sysdeps/unix/sysv/linux/mips/register-dump.h1
-rw-r--r--sysdeps/unix/sysv/linux/mips/setcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/mips/sigcontextinfo.h1
-rw-r--r--sysdeps/unix/sysv/linux/mips/swapcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/mips/ustat.c1
-rw-r--r--sysdeps/unix/sysv/linux/mmap64.c1
-rw-r--r--sysdeps/unix/sysv/linux/mq_notify.c1
-rw-r--r--sysdeps/unix/sysv/linux/msgctl.c1
-rw-r--r--sysdeps/unix/sysv/linux/msgget.c1
-rw-r--r--sysdeps/unix/sysv/linux/msgrcv.c1
-rw-r--r--sysdeps/unix/sysv/linux/msgsnd.c1
-rw-r--r--sysdeps/unix/sysv/linux/net/if_arp.h1
-rw-r--r--sysdeps/unix/sysv/linux/nios2/clone.S1
-rw-r--r--sysdeps/unix/sysv/linux/nios2/kernel_stat.h1
-rw-r--r--sysdeps/unix/sysv/linux/not-cancel.h1
-rw-r--r--sysdeps/unix/sysv/linux/nscd_setup_thread.c1
-rw-r--r--sysdeps/unix/sysv/linux/open.c1
-rw-r--r--sysdeps/unix/sysv/linux/ppoll.c1
-rw-r--r--sysdeps/unix/sysv/linux/pread.c1
-rw-r--r--sysdeps/unix/sysv/linux/pread64.c1
-rw-r--r--sysdeps/unix/sysv/linux/pselect.c1
-rw-r--r--sysdeps/unix/sysv/linux/ptsname.c1
-rw-r--r--sysdeps/unix/sysv/linux/pwrite.c1
-rw-r--r--sysdeps/unix/sysv/linux/pwrite64.c1
-rw-r--r--sysdeps/unix/sysv/linux/recvmmsg.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/bits/elfclass.h1
-rw-r--r--sysdeps/unix/sysv/linux/s390/dl-procinfo.h1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/clone.S1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/getutent.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/getutent_r.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/getutid.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/getutid_r.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/getutline.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/getutline_r.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/getutmp.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/getutxent.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/getutxid.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/getutxline.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/login.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/login32.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/makecontext.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/pututxline.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/register-dump.h1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/syscall.S1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/updwtmp.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/updwtmpx.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/utmp-compat.h1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/utmp-convert.h1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/utmp32.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/utmpx-convert.h1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/utmpx32.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/vfork.S1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/____longjmp_chk.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/clone.S1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/makecontext.c1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/register-dump.h1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/swapcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/syscall.S1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/sysdep.S1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/vfork.S1
-rw-r--r--sysdeps/unix/sysv/linux/s390/sigcontextinfo.h1
-rw-r--r--sysdeps/unix/sysv/linux/s390/sys/ptrace.h1
-rw-r--r--sysdeps/unix/sysv/linux/s390/sys/ucontext.h1
-rw-r--r--sysdeps/unix/sysv/linux/semctl.c1
-rw-r--r--sysdeps/unix/sysv/linux/semget.c1
-rw-r--r--sysdeps/unix/sysv/linux/semop.c1
-rw-r--r--sysdeps/unix/sysv/linux/semtimedop.c1
-rw-r--r--sysdeps/unix/sysv/linux/sendmmsg.c1
-rw-r--r--sysdeps/unix/sysv/linux/setipv4sourcefilter.c1
-rw-r--r--sysdeps/unix/sysv/linux/setsourcefilter.c1
-rw-r--r--sysdeps/unix/sysv/linux/sh/sigcontextinfo.h1
-rw-r--r--sysdeps/unix/sysv/linux/sh/sysdep.h2
-rw-r--r--sysdeps/unix/sysv/linux/shmat.c1
-rw-r--r--sysdeps/unix/sysv/linux/shmctl.c1
-rw-r--r--sysdeps/unix/sysv/linux/shmdt.c1
-rw-r--r--sysdeps/unix/sysv/linux/shmget.c1
-rw-r--r--sysdeps/unix/sysv/linux/sigset-cvt-mask.h1
-rw-r--r--sysdeps/unix/sysv/linux/sigstack.c1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/readelflib.c2
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/clone.S1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/getcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/libc_sigaction.c1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/makecontext.c1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/pipe.S1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/register-dump.h1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/setcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/sigcontextinfo.h1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/swapcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/clone.S1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/libc_sigaction.c2
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/pipe.S1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/register-dump.h1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/setjmp.S1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/sigcontextinfo.h1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/swapcontext.c1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/ucontext_i.h1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sysdep.h1
-rw-r--r--sysdeps/unix/sysv/linux/statfs.c1
-rw-r--r--sysdeps/unix/sysv/linux/statvfs.c1
-rw-r--r--sysdeps/unix/sysv/linux/timer_create.c1
-rw-r--r--sysdeps/unix/sysv/linux/timer_delete.c1
-rw-r--r--sysdeps/unix/sysv/linux/timer_getoverr.c1
-rw-r--r--sysdeps/unix/sysv/linux/timer_gettime.c1
-rw-r--r--sysdeps/unix/sysv/linux/timer_routines.c1
-rw-r--r--sysdeps/unix/sysv/linux/timer_settime.c1
-rw-r--r--sysdeps/unix/sysv/linux/umount.c1
-rw-r--r--sysdeps/unix/sysv/linux/unlockpt.c1
-rw-r--r--sysdeps/unix/sysv/linux/updwtmp.c1
-rw-r--r--sysdeps/unix/sysv/linux/ustat.c1
-rw-r--r--sysdeps/unix/sysv/linux/utmp_file.c1
-rw-r--r--sysdeps/unix/sysv/linux/x86/readelflib.c2
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/__start_context.S1
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/getcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/makecontext.c1
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/setcontext.S1
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/swapcontext.S1
236 files changed, 0 insertions, 250 deletions
diff --git a/sysdeps/unix/sysv/linux/accept4.c b/sysdeps/unix/sysv/linux/accept4.c
index d19c4126c6..9f3216a4f0 100644
--- a/sysdeps/unix/sysv/linux/accept4.c
+++ b/sysdeps/unix/sysv/linux/accept4.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2008.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/aio_misc.h b/sysdeps/unix/sysv/linux/aio_misc.h
index 8934402372..29b527b1b8 100644
--- a/sysdeps/unix/sysv/linux/aio_misc.h
+++ b/sysdeps/unix/sysv/linux/aio_misc.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public License as
diff --git a/sysdeps/unix/sysv/linux/alpha/clone.S b/sysdeps/unix/sysv/linux/alpha/clone.S
index 3c25f26ee8..4b9e9c2b10 100644
--- a/sysdeps/unix/sysv/linux/alpha/clone.S
+++ b/sysdeps/unix/sysv/linux/alpha/clone.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/alpha/gethostname.c b/sysdeps/unix/sysv/linux/alpha/gethostname.c
index 850b8beca3..f637aa7e97 100644
--- a/sysdeps/unix/sysv/linux/alpha/gethostname.c
+++ b/sysdeps/unix/sysv/linux/alpha/gethostname.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2001
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S b/sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S
index a21f27c4be..6688628b28 100644
--- a/sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S
+++ b/sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1993-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Mosberger <davidm@azstarnet.com>, 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S b/sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S
index 022a23aed5..106a66a86f 100644
--- a/sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S
+++ b/sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1993-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Mosberger <davidm@azstarnet.com>, 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/alpha/ioperm.c b/sysdeps/unix/sysv/linux/alpha/ioperm.c
index 73a25b2f6b..2b283e72b5 100644
--- a/sysdeps/unix/sysv/linux/alpha/ioperm.c
+++ b/sysdeps/unix/sysv/linux/alpha/ioperm.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1992-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Mosberger.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/alpha/rt_sigaction.S b/sysdeps/unix/sysv/linux/alpha/rt_sigaction.S
index b21d0dac1f..b8ecc2d1b0 100644
--- a/sysdeps/unix/sysv/linux/alpha/rt_sigaction.S
+++ b/sysdeps/unix/sysv/linux/alpha/rt_sigaction.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@cygnus.com>, 1998
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/alpha/syscall.S b/sysdeps/unix/sysv/linux/alpha/syscall.S
index 9545840f66..1f7df8fbf9 100644
--- a/sysdeps/unix/sysv/linux/alpha/syscall.S
+++ b/sysdeps/unix/sysv/linux/alpha/syscall.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Mosberger <davidm@azstarnet.com>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/alpha/sysdep.h b/sysdeps/unix/sysv/linux/alpha/sysdep.h
index a000c845f1..741d2384a8 100644
--- a/sysdeps/unix/sysv/linux/alpha/sysdep.h
+++ b/sysdeps/unix/sysv/linux/alpha/sysdep.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1992-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/arc/clone.S b/sysdeps/unix/sysv/linux/arc/clone.S
index 76947ac2c7..9960cb0cea 100644
--- a/sysdeps/unix/sysv/linux/arc/clone.S
+++ b/sysdeps/unix/sysv/linux/arc/clone.S
@@ -1,7 +1,6 @@
 /* clone() implementation for ARC.
    Copyright (C) 2020-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andrew Jenner <andrew@codesourcery.com>, 2008.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/arm/clone.S b/sysdeps/unix/sysv/linux/arm/clone.S
index 05596cb7a5..232422c382 100644
--- a/sysdeps/unix/sysv/linux/arm/clone.S
+++ b/sysdeps/unix/sysv/linux/arm/clone.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Pat Beirne <patb@corelcomputer.com>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/arm/dl-procinfo.c b/sysdeps/unix/sysv/linux/arm/dl-procinfo.c
index 1e12ee683c..f348520f3c 100644
--- a/sysdeps/unix/sysv/linux/arm/dl-procinfo.c
+++ b/sysdeps/unix/sysv/linux/arm/dl-procinfo.c
@@ -1,7 +1,6 @@
 /* Data for Linux/ARM version of processor capability information.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Philip Blundell <philb@gnu.org>, 2001.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/arm/dl-procinfo.h b/sysdeps/unix/sysv/linux/arm/dl-procinfo.h
index b3ad719c91..ec13f550d0 100644
--- a/sysdeps/unix/sysv/linux/arm/dl-procinfo.h
+++ b/sysdeps/unix/sysv/linux/arm/dl-procinfo.h
@@ -1,7 +1,6 @@
 /* Linux/ARM version of processor capability information handling macros.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Philip Blundell <philb@gnu.org>, 2001.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/arm/ioperm.c b/sysdeps/unix/sysv/linux/arm/ioperm.c
index 8309ce4032..fd83de582a 100644
--- a/sysdeps/unix/sysv/linux/arm/ioperm.c
+++ b/sysdeps/unix/sysv/linux/arm/ioperm.c
@@ -1,7 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Phil Blundell, based on the Alpha version by
-   David Mosberger.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/arm/readelflib.c b/sysdeps/unix/sysv/linux/arm/readelflib.c
index ade2f49aeb..6b83f2c942 100644
--- a/sysdeps/unix/sysv/linux/arm/readelflib.c
+++ b/sysdeps/unix/sysv/linux/arm/readelflib.c
@@ -1,7 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>, 1999 and
-		  Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/arm/register-dump.h b/sysdeps/unix/sysv/linux/arm/register-dump.h
index b73a1515a8..80efdcdbb0 100644
--- a/sysdeps/unix/sysv/linux/arm/register-dump.h
+++ b/sysdeps/unix/sysv/linux/arm/register-dump.h
@@ -1,7 +1,6 @@
 /* Dump registers.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Philip Blundell <pb@nexus.co.uk>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/arm/sigcontextinfo.h b/sysdeps/unix/sysv/linux/arm/sigcontextinfo.h
index 623d1fa273..03deec9f52 100644
--- a/sysdeps/unix/sysv/linux/arm/sigcontextinfo.h
+++ b/sysdeps/unix/sysv/linux/arm/sigcontextinfo.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Philip Blundell <philb@gnu.org>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/arm/sysdep.h b/sysdeps/unix/sysv/linux/arm/sysdep.h
index c1722557bd..e25b8065ce 100644
--- a/sysdeps/unix/sysv/linux/arm/sysdep.h
+++ b/sysdeps/unix/sysv/linux/arm/sysdep.h
@@ -1,7 +1,5 @@
 /* Copyright (C) 1992-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>, August 1995.
-   ARM changes by Philip Blundell, <pjb27@cam.ac.uk>, May 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/arm/vfork.S b/sysdeps/unix/sysv/linux/arm/vfork.S
index 3f355c8ef9..11be0a0966 100644
--- a/sysdeps/unix/sysv/linux/arm/vfork.S
+++ b/sysdeps/unix/sysv/linux/arm/vfork.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Philip Blundell <philb@gnu.org>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/dl-librecon.h b/sysdeps/unix/sysv/linux/dl-librecon.h
index 585330c15d..34212344d5 100644
--- a/sysdeps/unix/sysv/linux/dl-librecon.h
+++ b/sysdeps/unix/sysv/linux/dl-librecon.h
@@ -1,7 +1,6 @@
 /* Optional code to distinguish library flavours.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2001.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/dl-openat64.c b/sysdeps/unix/sysv/linux/dl-openat64.c
index 9a1fa78d22..d4f5f9aedb 100644
--- a/sysdeps/unix/sysv/linux/dl-openat64.c
+++ b/sysdeps/unix/sysv/linux/dl-openat64.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gmain.com>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/dl-origin.c b/sysdeps/unix/sysv/linux/dl-origin.c
index 9f749e0251..9d4eaaeecc 100644
--- a/sysdeps/unix/sysv/linux/dl-origin.c
+++ b/sysdeps/unix/sysv/linux/dl-origin.c
@@ -1,7 +1,6 @@
 /* Find path of executable.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/fstatvfs.c b/sysdeps/unix/sysv/linux/fstatvfs.c
index ba3fd22cfb..18aeed19bc 100644
--- a/sysdeps/unix/sysv/linux/fstatvfs.c
+++ b/sysdeps/unix/sysv/linux/fstatvfs.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/____longjmp_chk.c b/sysdeps/unix/sysv/linux/generic/____longjmp_chk.c
index 8bada637e6..3f8d6e5ae6 100644
--- a/sysdeps/unix/sysv/linux/generic/____longjmp_chk.c
+++ b/sysdeps/unix/sysv/linux/generic/____longjmp_chk.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/bits/fcntl.h b/sysdeps/unix/sysv/linux/generic/bits/fcntl.h
index 8e05c72af7..aba2c4e9fd 100644
--- a/sysdeps/unix/sysv/linux/generic/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/generic/bits/fcntl.h
@@ -1,7 +1,6 @@
 /* O_*, F_*, FD_* bit values for the generic Linux ABI.
    Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/bits/typesizes.h b/sysdeps/unix/sysv/linux/generic/bits/typesizes.h
index 0dd33638f0..c658dfdf60 100644
--- a/sysdeps/unix/sysv/linux/generic/bits/typesizes.h
+++ b/sysdeps/unix/sysv/linux/generic/bits/typesizes.h
@@ -1,7 +1,6 @@
 /* bits/typesizes.h -- underlying types for *_t.  For the generic Linux ABI.
    Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/chmod.c b/sysdeps/unix/sysv/linux/generic/chmod.c
index a27cc1b06f..9bd1b9668c 100644
--- a/sysdeps/unix/sysv/linux/generic/chmod.c
+++ b/sysdeps/unix/sysv/linux/generic/chmod.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/chown.c b/sysdeps/unix/sysv/linux/generic/chown.c
index d8e8b992f0..9ef050a57a 100644
--- a/sysdeps/unix/sysv/linux/generic/chown.c
+++ b/sysdeps/unix/sysv/linux/generic/chown.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/dl-origin.c b/sysdeps/unix/sysv/linux/generic/dl-origin.c
index 786359979b..b39591e853 100644
--- a/sysdeps/unix/sysv/linux/generic/dl-origin.c
+++ b/sysdeps/unix/sysv/linux/generic/dl-origin.c
@@ -1,7 +1,6 @@
 /* Find path of executable.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/dup2.c b/sysdeps/unix/sysv/linux/generic/dup2.c
index 3fedb265c5..ab6f82cf99 100644
--- a/sysdeps/unix/sysv/linux/generic/dup2.c
+++ b/sysdeps/unix/sysv/linux/generic/dup2.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/epoll_create.c b/sysdeps/unix/sysv/linux/generic/epoll_create.c
index 2f433ab9bc..bfbdf5ca20 100644
--- a/sysdeps/unix/sysv/linux/generic/epoll_create.c
+++ b/sysdeps/unix/sysv/linux/generic/epoll_create.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/inotify_init.c b/sysdeps/unix/sysv/linux/generic/inotify_init.c
index e5979a0967..1077cba17a 100644
--- a/sysdeps/unix/sysv/linux/generic/inotify_init.c
+++ b/sysdeps/unix/sysv/linux/generic/inotify_init.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/lchown.c b/sysdeps/unix/sysv/linux/generic/lchown.c
index 048ad40413..a7218028e1 100644
--- a/sysdeps/unix/sysv/linux/generic/lchown.c
+++ b/sysdeps/unix/sysv/linux/generic/lchown.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/link.c b/sysdeps/unix/sysv/linux/generic/link.c
index b71ebf1c88..d4a7adcc85 100644
--- a/sysdeps/unix/sysv/linux/generic/link.c
+++ b/sysdeps/unix/sysv/linux/generic/link.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/mkdir.c b/sysdeps/unix/sysv/linux/generic/mkdir.c
index 45a0f96f4d..fb12b9c1f3 100644
--- a/sysdeps/unix/sysv/linux/generic/mkdir.c
+++ b/sysdeps/unix/sysv/linux/generic/mkdir.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/pipe.c b/sysdeps/unix/sysv/linux/generic/pipe.c
index 1d21e68c8d..a73a4e89fc 100644
--- a/sysdeps/unix/sysv/linux/generic/pipe.c
+++ b/sysdeps/unix/sysv/linux/generic/pipe.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/readlink.c b/sysdeps/unix/sysv/linux/generic/readlink.c
index 6cb915ed96..879a2c10f1 100644
--- a/sysdeps/unix/sysv/linux/generic/readlink.c
+++ b/sysdeps/unix/sysv/linux/generic/readlink.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/rmdir.c b/sysdeps/unix/sysv/linux/generic/rmdir.c
index b3188d1c49..7db45c349f 100644
--- a/sysdeps/unix/sysv/linux/generic/rmdir.c
+++ b/sysdeps/unix/sysv/linux/generic/rmdir.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/symlink.c b/sysdeps/unix/sysv/linux/generic/symlink.c
index 0cf8075a2a..a0446be329 100644
--- a/sysdeps/unix/sysv/linux/generic/symlink.c
+++ b/sysdeps/unix/sysv/linux/generic/symlink.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/sysdep.h b/sysdeps/unix/sysv/linux/generic/sysdep.h
index 19d5d8d1bf..1bd0ec6814 100644
--- a/sysdeps/unix/sysv/linux/generic/sysdep.h
+++ b/sysdeps/unix/sysv/linux/generic/sysdep.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/unlink.c b/sysdeps/unix/sysv/linux/generic/unlink.c
index 2902a8a6ce..2ef4a4db33 100644
--- a/sysdeps/unix/sysv/linux/generic/unlink.c
+++ b/sysdeps/unix/sysv/linux/generic/unlink.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/generic/wordsize-32/sendfile.c b/sysdeps/unix/sysv/linux/generic/wordsize-32/sendfile.c
index 00442723b6..cd1564cc09 100644
--- a/sysdeps/unix/sysv/linux/generic/wordsize-32/sendfile.c
+++ b/sysdeps/unix/sysv/linux/generic/wordsize-32/sendfile.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/getcwd.c b/sysdeps/unix/sysv/linux/getcwd.c
index edebf5a8bd..2c8e6a77b3 100644
--- a/sysdeps/unix/sysv/linux/getcwd.c
+++ b/sysdeps/unix/sysv/linux/getcwd.c
@@ -1,7 +1,6 @@
 /* Determine current working directory.  Linux version.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/getipv4sourcefilter.c b/sysdeps/unix/sysv/linux/getipv4sourcefilter.c
index c60032ba65..6b792189a5 100644
--- a/sysdeps/unix/sysv/linux/getipv4sourcefilter.c
+++ b/sysdeps/unix/sysv/linux/getipv4sourcefilter.c
@@ -1,7 +1,6 @@
 /* Get IPv4 source filter.  Linux version.
    Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/getpt.c b/sysdeps/unix/sysv/linux/getpt.c
index 52532f7190..4510ba1593 100644
--- a/sysdeps/unix/sysv/linux/getpt.c
+++ b/sysdeps/unix/sysv/linux/getpt.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/getsourcefilter.c b/sysdeps/unix/sysv/linux/getsourcefilter.c
index 66e2659fac..3903817e4d 100644
--- a/sysdeps/unix/sysv/linux/getsourcefilter.c
+++ b/sysdeps/unix/sysv/linux/getsourcefilter.c
@@ -1,7 +1,6 @@
 /* Get source filter.  Linux version.
    Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/getsysstats.c b/sysdeps/unix/sysv/linux/getsysstats.c
index 1391e360b8..8a5d342f0c 100644
--- a/sysdeps/unix/sysv/linux/getsysstats.c
+++ b/sysdeps/unix/sysv/linux/getsysstats.c
@@ -1,7 +1,6 @@
 /* Determine various system internal values, Linux version.
    Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/grantpt.c b/sysdeps/unix/sysv/linux/grantpt.c
index 57e988fe36..b3d93a6415 100644
--- a/sysdeps/unix/sysv/linux/grantpt.c
+++ b/sysdeps/unix/sysv/linux/grantpt.c
@@ -1,7 +1,6 @@
 /* grantpt implementation for Linux.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/hppa/atomic-machine.h b/sysdeps/unix/sysv/linux/hppa/atomic-machine.h
index 1fcb1852e8..e9edc0e7bc 100644
--- a/sysdeps/unix/sysv/linux/hppa/atomic-machine.h
+++ b/sysdeps/unix/sysv/linux/hppa/atomic-machine.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@baldric.uwo.ca>, 2005.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/hppa/clone.S b/sysdeps/unix/sysv/linux/hppa/clone.S
index 1948602cc9..303647fb39 100644
--- a/sysdeps/unix/sysv/linux/hppa/clone.S
+++ b/sysdeps/unix/sysv/linux/hppa/clone.S
@@ -1,7 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Huggins-Daines <dhd@debian.org>, 2000.
-   Based on the Alpha version by Richard Henderson <rth@tamu.edu>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/hppa/getcontext.S b/sysdeps/unix/sysv/linux/hppa/getcontext.S
index 1405b42819..d9ed74666c 100644
--- a/sysdeps/unix/sysv/linux/hppa/getcontext.S
+++ b/sysdeps/unix/sysv/linux/hppa/getcontext.S
@@ -1,7 +1,6 @@
 /* Get current user context.
    Copyright (C) 2008-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Helge Deller <deller@gmx.de>, 2008.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/hppa/makecontext.c b/sysdeps/unix/sysv/linux/hppa/makecontext.c
index a80e764151..1a98734e1b 100644
--- a/sysdeps/unix/sysv/linux/hppa/makecontext.c
+++ b/sysdeps/unix/sysv/linux/hppa/makecontext.c
@@ -1,7 +1,6 @@
 /* Create new context.
    Copyright (C) 2008-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Helge Deller <deller@gmx.de>, 2008.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/hppa/setcontext.S b/sysdeps/unix/sysv/linux/hppa/setcontext.S
index 8fc5f5e56c..1e63277572 100644
--- a/sysdeps/unix/sysv/linux/hppa/setcontext.S
+++ b/sysdeps/unix/sysv/linux/hppa/setcontext.S
@@ -1,7 +1,6 @@
 /* Install given context.
    Copyright (C) 2008-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Helge Deller <deller@gmx.de>, 2008.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/hppa/swapcontext.c b/sysdeps/unix/sysv/linux/hppa/swapcontext.c
index f9a8207543..ce74f1a73e 100644
--- a/sysdeps/unix/sysv/linux/hppa/swapcontext.c
+++ b/sysdeps/unix/sysv/linux/hppa/swapcontext.c
@@ -1,7 +1,6 @@
 /* Swap to new context.
    Copyright (C) 2008-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Helge Deller <deller@gmx.de>, 2008.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/hppa/sysdep.h b/sysdeps/unix/sysv/linux/hppa/sysdep.h
index 779bc85e26..506916e693 100644
--- a/sysdeps/unix/sysv/linux/hppa/sysdep.h
+++ b/sysdeps/unix/sysv/linux/hppa/sysdep.h
@@ -1,8 +1,6 @@
 /* Assembler macros for PA-RISC.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper, <drepper@cygnus.com>, August 1999.
-   Linux/PA-RISC changes by Philipp Rumpf, <prumpf@tux.org>, March 2000.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/i386/clone.S b/sysdeps/unix/sysv/linux/i386/clone.S
index 8ec84491bb..1919a1afaf 100644
--- a/sysdeps/unix/sysv/linux/i386/clone.S
+++ b/sysdeps/unix/sysv/linux/i386/clone.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@tamu.edu)
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/i386/dl-librecon.h b/sysdeps/unix/sysv/linux/i386/dl-librecon.h
index 7efe0679b3..af3563300b 100644
--- a/sysdeps/unix/sysv/linux/i386/dl-librecon.h
+++ b/sysdeps/unix/sysv/linux/i386/dl-librecon.h
@@ -1,7 +1,6 @@
 /* Optional code to distinguish library flavours.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/i386/dl-procinfo.h b/sysdeps/unix/sysv/linux/i386/dl-procinfo.h
index 0e1b4b6faf..165dfed7b7 100644
--- a/sysdeps/unix/sysv/linux/i386/dl-procinfo.h
+++ b/sysdeps/unix/sysv/linux/i386/dl-procinfo.h
@@ -1,7 +1,6 @@
 /* Linux/i386 version of processor capability information handling macros.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/i386/getcontext.S b/sysdeps/unix/sysv/linux/i386/getcontext.S
index 95e8d06dd1..42c1deb9b5 100644
--- a/sysdeps/unix/sysv/linux/i386/getcontext.S
+++ b/sysdeps/unix/sysv/linux/i386/getcontext.S
@@ -1,7 +1,6 @@
 /* Save current context.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/i386/makecontext.S b/sysdeps/unix/sysv/linux/i386/makecontext.S
index 059fa5a95e..1f8b71c215 100644
--- a/sysdeps/unix/sysv/linux/i386/makecontext.S
+++ b/sysdeps/unix/sysv/linux/i386/makecontext.S
@@ -1,7 +1,6 @@
 /* Create new context.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/i386/register-dump.h b/sysdeps/unix/sysv/linux/i386/register-dump.h
index 25fcc005f5..03a9acf65f 100644
--- a/sysdeps/unix/sysv/linux/i386/register-dump.h
+++ b/sysdeps/unix/sysv/linux/i386/register-dump.h
@@ -1,7 +1,6 @@
 /* Dump registers.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/i386/setcontext.S b/sysdeps/unix/sysv/linux/i386/setcontext.S
index 4be3d0598e..f5a6495549 100644
--- a/sysdeps/unix/sysv/linux/i386/setcontext.S
+++ b/sysdeps/unix/sysv/linux/i386/setcontext.S
@@ -1,7 +1,6 @@
 /* Install given context.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/i386/sigcontextinfo.h b/sysdeps/unix/sysv/linux/i386/sigcontextinfo.h
index 19f3bbddc9..800b961a35 100644
--- a/sysdeps/unix/sysv/linux/i386/sigcontextinfo.h
+++ b/sysdeps/unix/sysv/linux/i386/sigcontextinfo.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/i386/swapcontext.S b/sysdeps/unix/sysv/linux/i386/swapcontext.S
index 369c22f7f2..13f548c34c 100644
--- a/sysdeps/unix/sysv/linux/i386/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/i386/swapcontext.S
@@ -1,7 +1,6 @@
 /* Save current context and install the given one.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h
index 8a9911b7ac..ec12c84ca8 100644
--- a/sysdeps/unix/sysv/linux/i386/sysdep.h
+++ b/sysdeps/unix/sysv/linux/i386/sysdep.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1992-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper, <drepper@gnu.org>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/i386/vfork.S b/sysdeps/unix/sysv/linux/i386/vfork.S
index 2b8bfb8c0b..ed9ddcc4cf 100644
--- a/sysdeps/unix/sysv/linux/i386/vfork.S
+++ b/sysdeps/unix/sysv/linux/i386/vfork.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Schwab <schwab@gnu.org>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/__ia64_longjmp.S b/sysdeps/unix/sysv/linux/ia64/__ia64_longjmp.S
index fbb4b1c26f..ea165e42dc 100644
--- a/sysdeps/unix/sysv/linux/ia64/__ia64_longjmp.S
+++ b/sysdeps/unix/sysv/linux/ia64/__ia64_longjmp.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
-   Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/__longjmp.S b/sysdeps/unix/sysv/linux/ia64/__longjmp.S
index c7bd3b3dbc..1f8f1d71db 100644
--- a/sysdeps/unix/sysv/linux/ia64/__longjmp.S
+++ b/sysdeps/unix/sysv/linux/ia64/__longjmp.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
-   Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/__sigstack_longjmp.c b/sysdeps/unix/sysv/linux/ia64/__sigstack_longjmp.c
index 554649a865..36e626382a 100644
--- a/sysdeps/unix/sysv/linux/ia64/__sigstack_longjmp.c
+++ b/sysdeps/unix/sysv/linux/ia64/__sigstack_longjmp.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/__start_context.S b/sysdeps/unix/sysv/linux/ia64/__start_context.S
index fd0235a197..9adc092c2c 100644
--- a/sysdeps/unix/sysv/linux/ia64/__start_context.S
+++ b/sysdeps/unix/sysv/linux/ia64/__start_context.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/bits/setjmp.h b/sysdeps/unix/sysv/linux/ia64/bits/setjmp.h
index d366e8208e..572b1b30df 100644
--- a/sysdeps/unix/sysv/linux/ia64/bits/setjmp.h
+++ b/sysdeps/unix/sysv/linux/ia64/bits/setjmp.h
@@ -1,7 +1,6 @@
 /* Define the machine-dependent type `jmp_buf'.  Linux/IA-64 version.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h b/sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h
index 7dca259c31..fc71ef721b 100644
--- a/sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h
+++ b/sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jes Sorensen <jes@linuxcare.com>, July 2000
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/getcontext.S b/sysdeps/unix/sysv/linux/ia64/getcontext.S
index 9b9cd0b0c6..8fc3bce51b 100644
--- a/sysdeps/unix/sysv/linux/ia64/getcontext.S
+++ b/sysdeps/unix/sysv/linux/ia64/getcontext.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/ioperm.c b/sysdeps/unix/sysv/linux/ia64/ioperm.c
index 9c0e55f9e9..bfc1c05a04 100644
--- a/sysdeps/unix/sysv/linux/ia64/ioperm.c
+++ b/sysdeps/unix/sysv/linux/ia64/ioperm.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/makecontext.c b/sysdeps/unix/sysv/linux/ia64/makecontext.c
index 1ca85593c6..152902d49c 100644
--- a/sysdeps/unix/sysv/linux/ia64/makecontext.c
+++ b/sysdeps/unix/sysv/linux/ia64/makecontext.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/pipe.S b/sysdeps/unix/sysv/linux/ia64/pipe.S
index 007c8c0ee4..ffda712920 100644
--- a/sysdeps/unix/sysv/linux/ia64/pipe.S
+++ b/sysdeps/unix/sysv/linux/ia64/pipe.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Mosberger <davidm@hpl.hp.com>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/register-dump.h b/sysdeps/unix/sysv/linux/ia64/register-dump.h
index 43482c506a..6a44f30eb5 100644
--- a/sysdeps/unix/sysv/linux/ia64/register-dump.h
+++ b/sysdeps/unix/sysv/linux/ia64/register-dump.h
@@ -1,7 +1,6 @@
 /* Dump registers.
    Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/setcontext.S b/sysdeps/unix/sysv/linux/ia64/setcontext.S
index 9c22182c05..6b76bd4b9f 100644
--- a/sysdeps/unix/sysv/linux/ia64/setcontext.S
+++ b/sysdeps/unix/sysv/linux/ia64/setcontext.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-     Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/setjmp.S b/sysdeps/unix/sysv/linux/ia64/setjmp.S
index f242075c7d..523d7e9678 100644
--- a/sysdeps/unix/sysv/linux/ia64/setjmp.S
+++ b/sysdeps/unix/sysv/linux/ia64/setjmp.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
-   Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/swapcontext.c b/sysdeps/unix/sysv/linux/ia64/swapcontext.c
index 234c174ef2..a19a63a26c 100644
--- a/sysdeps/unix/sysv/linux/ia64/swapcontext.c
+++ b/sysdeps/unix/sysv/linux/ia64/swapcontext.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-     Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/sys/io.h b/sysdeps/unix/sysv/linux/ia64/sys/io.h
index 4761e322db..c52c1e6c0c 100644
--- a/sysdeps/unix/sysv/linux/ia64/sys/io.h
+++ b/sysdeps/unix/sysv/linux/ia64/sys/io.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-     Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/sys/rse.h b/sysdeps/unix/sysv/linux/ia64/sys/rse.h
index 0e472a1df1..96170b707b 100644
--- a/sysdeps/unix/sysv/linux/ia64/sys/rse.h
+++ b/sysdeps/unix/sysv/linux/ia64/sys/rse.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-     Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/syscall.S b/sysdeps/unix/sysv/linux/ia64/syscall.S
index 23f1d437f9..2b42602eae 100644
--- a/sysdeps/unix/sysv/linux/ia64/syscall.S
+++ b/sysdeps/unix/sysv/linux/ia64/syscall.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jes Sorensen <Jes.Sorensen@cern.ch>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/sysdep.S b/sysdeps/unix/sysv/linux/ia64/sysdep.S
index ee6365aece..d5f9c4ef10 100644
--- a/sysdeps/unix/sysv/linux/ia64/sysdep.S
+++ b/sysdeps/unix/sysv/linux/ia64/sysdep.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/sysdep.h b/sysdeps/unix/sysv/linux/ia64/sysdep.h
index 7198c192a0..07478baf93 100644
--- a/sysdeps/unix/sysv/linux/ia64/sysdep.h
+++ b/sysdeps/unix/sysv/linux/ia64/sysdep.h
@@ -1,7 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jes Sorensen, <Jes.Sorensen@cern.ch>, April 1999.
-   Based on code originally written by David Mosberger-Tang
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ia64/ucontext_i.h b/sysdeps/unix/sysv/linux/ia64/ucontext_i.h
index 6a30f9edc6..c6a7ead2e3 100644
--- a/sysdeps/unix/sysv/linux/ia64/ucontext_i.h
+++ b/sysdeps/unix/sysv/linux/ia64/ucontext_i.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-     Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ifreq.c b/sysdeps/unix/sysv/linux/ifreq.c
index 4646dd710b..45f49e9fe6 100644
--- a/sysdeps/unix/sysv/linux/ifreq.c
+++ b/sysdeps/unix/sysv/linux/ifreq.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/internal_statvfs.c b/sysdeps/unix/sysv/linux/internal_statvfs.c
index 39fcb5d429..b1b8dfefe6 100644
--- a/sysdeps/unix/sysv/linux/internal_statvfs.c
+++ b/sysdeps/unix/sysv/linux/internal_statvfs.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/kernel-posix-timers.h b/sysdeps/unix/sysv/linux/kernel-posix-timers.h
index 9109166f29..e7d2bac740 100644
--- a/sysdeps/unix/sysv/linux/kernel-posix-timers.h
+++ b/sysdeps/unix/sysv/linux/kernel-posix-timers.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public License as
diff --git a/sysdeps/unix/sysv/linux/lddlibc4.c b/sysdeps/unix/sysv/linux/lddlibc4.c
index 642379eeb4..92e2cc38a6 100644
--- a/sysdeps/unix/sysv/linux/lddlibc4.c
+++ b/sysdeps/unix/sysv/linux/lddlibc4.c
@@ -1,7 +1,6 @@
 /* Stub for ldd script to print Linux libc4 dependencies.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/m68k/clone.S b/sysdeps/unix/sysv/linux/m68k/clone.S
index 183a9bfff8..86ac2b3e23 100644
--- a/sysdeps/unix/sysv/linux/m68k/clone.S
+++ b/sysdeps/unix/sysv/linux/m68k/clone.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Schwab (schwab@issan.informatik.uni-dortmund.de)
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/atomic-machine.h b/sysdeps/unix/sysv/linux/m68k/coldfire/atomic-machine.h
index 63b93b1ec3..1228660058 100644
--- a/sysdeps/unix/sysv/linux/m68k/coldfire/atomic-machine.h
+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/atomic-machine.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 2010-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Maxim Kuvyrkov <maxim@codesourcery.com>, 2010.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/m68k/getpagesize.c b/sysdeps/unix/sysv/linux/m68k/getpagesize.c
index f406214997..5610483894 100644
--- a/sysdeps/unix/sysv/linux/m68k/getpagesize.c
+++ b/sysdeps/unix/sysv/linux/m68k/getpagesize.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Schwab <schwab@suse.de>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/m68k/register-dump.h b/sysdeps/unix/sysv/linux/m68k/register-dump.h
index 192338e527..9b4f2118f0 100644
--- a/sysdeps/unix/sysv/linux/m68k/register-dump.h
+++ b/sysdeps/unix/sysv/linux/m68k/register-dump.h
@@ -1,7 +1,6 @@
 /* Dump registers.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Schwab <schwab@gnu.org>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/m68k/sigcontextinfo.h b/sysdeps/unix/sysv/linux/m68k/sigcontextinfo.h
index 3d5fd0aaa5..3c96cb0fb0 100644
--- a/sysdeps/unix/sysv/linux/m68k/sigcontextinfo.h
+++ b/sysdeps/unix/sysv/linux/m68k/sigcontextinfo.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/m68k/sysdep.h b/sysdeps/unix/sysv/linux/m68k/sysdep.h
index b29986339a..4b83d860e2 100644
--- a/sysdeps/unix/sysv/linux/m68k/sysdep.h
+++ b/sysdeps/unix/sysv/linux/m68k/sysdep.h
@@ -1,7 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de>,
-   December 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/m68k/vfork.S b/sysdeps/unix/sysv/linux/m68k/vfork.S
index cdc030bf3a..eb0e7f7be3 100644
--- a/sysdeps/unix/sysv/linux/m68k/vfork.S
+++ b/sysdeps/unix/sysv/linux/m68k/vfork.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Schwab <schwab@gnu.org>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/mips/_test_and_set.c b/sysdeps/unix/sysv/linux/mips/_test_and_set.c
index bcb7f67290..ceb751eaa8 100644
--- a/sysdeps/unix/sysv/linux/mips/_test_and_set.c
+++ b/sysdeps/unix/sysv/linux/mips/_test_and_set.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Maciej W. Rozycki <macro@ds2.pg.gda.pl>, 2000.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/mips/clone.S b/sysdeps/unix/sysv/linux/mips/clone.S
index fd71b5ca2e..64603afab4 100644
--- a/sysdeps/unix/sysv/linux/mips/clone.S
+++ b/sysdeps/unix/sysv/linux/mips/clone.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ralf Bächle <ralf@linux-mips.org>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/mips/getcontext.S b/sysdeps/unix/sysv/linux/mips/getcontext.S
index 608f1bce68..c2e9f3b8ef 100644
--- a/sysdeps/unix/sysv/linux/mips/getcontext.S
+++ b/sysdeps/unix/sysv/linux/mips/getcontext.S
@@ -1,7 +1,6 @@
 /* Save current context.
    Copyright (C) 2009-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Maciej W. Rozycki <macro@codesourcery.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/mips/makecontext.S b/sysdeps/unix/sysv/linux/mips/makecontext.S
index e31522f78b..ae064ba608 100644
--- a/sysdeps/unix/sysv/linux/mips/makecontext.S
+++ b/sysdeps/unix/sysv/linux/mips/makecontext.S
@@ -1,7 +1,6 @@
 /* Modify saved context.
    Copyright (C) 2009-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Maciej W. Rozycki <macro@codesourcery.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/mips/readelflib.c b/sysdeps/unix/sysv/linux/mips/readelflib.c
index d0e809d893..d07e59bfa5 100644
--- a/sysdeps/unix/sysv/linux/mips/readelflib.c
+++ b/sysdeps/unix/sysv/linux/mips/readelflib.c
@@ -1,9 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Alexandre Oliva <aoliva@redhat.com>
-   Based on work ../x86_64/readelflib.c,
-   contributed by Andreas Jaeger <aj@suse.de>, 1999 and
-		  Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/mips/register-dump.h b/sysdeps/unix/sysv/linux/mips/register-dump.h
index 6f41a54cad..9346cb5f06 100644
--- a/sysdeps/unix/sysv/linux/mips/register-dump.h
+++ b/sysdeps/unix/sysv/linux/mips/register-dump.h
@@ -1,7 +1,6 @@
 /* Dump registers.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>, 2000.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/mips/setcontext.S b/sysdeps/unix/sysv/linux/mips/setcontext.S
index 1e7f36ea70..e2b92e7d07 100644
--- a/sysdeps/unix/sysv/linux/mips/setcontext.S
+++ b/sysdeps/unix/sysv/linux/mips/setcontext.S
@@ -1,7 +1,6 @@
 /* Set current context.
    Copyright (C) 2009-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Maciej W. Rozycki <macro@codesourcery.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/mips/sigcontextinfo.h b/sysdeps/unix/sysv/linux/mips/sigcontextinfo.h
index 9b3ce52a15..06153370b6 100644
--- a/sysdeps/unix/sysv/linux/mips/sigcontextinfo.h
+++ b/sysdeps/unix/sysv/linux/mips/sigcontextinfo.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>, 2000.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/mips/swapcontext.S b/sysdeps/unix/sysv/linux/mips/swapcontext.S
index 3055481c45..0df34e76bd 100644
--- a/sysdeps/unix/sysv/linux/mips/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/mips/swapcontext.S
@@ -1,7 +1,6 @@
 /* Save and set current context.
    Copyright (C) 2009-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Maciej W. Rozycki <macro@codesourcery.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/mips/ustat.c b/sysdeps/unix/sysv/linux/mips/ustat.c
index c5e10a338e..4d60846dfe 100644
--- a/sysdeps/unix/sysv/linux/mips/ustat.c
+++ b/sysdeps/unix/sysv/linux/mips/ustat.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/mmap64.c b/sysdeps/unix/sysv/linux/mmap64.c
index 6823548521..6192b0c884 100644
--- a/sysdeps/unix/sysv/linux/mmap64.c
+++ b/sysdeps/unix/sysv/linux/mmap64.c
@@ -1,7 +1,6 @@
 /* mmap - map files or devices into memory.  Linux version.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/mq_notify.c b/sysdeps/unix/sysv/linux/mq_notify.c
index eccae2e4c6..6c1c6fff21 100644
--- a/sysdeps/unix/sysv/linux/mq_notify.c
+++ b/sysdeps/unix/sysv/linux/mq_notify.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contribute by Ulrich Drepper <drepper@redhat.com>, 2004.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/msgctl.c b/sysdeps/unix/sysv/linux/msgctl.c
index 9f38c06d53..760889c4c4 100644
--- a/sysdeps/unix/sysv/linux/msgctl.c
+++ b/sysdeps/unix/sysv/linux/msgctl.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/msgget.c b/sysdeps/unix/sysv/linux/msgget.c
index decf1376cb..77972db508 100644
--- a/sysdeps/unix/sysv/linux/msgget.c
+++ b/sysdeps/unix/sysv/linux/msgget.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/msgrcv.c b/sysdeps/unix/sysv/linux/msgrcv.c
index 6d99f055a1..563a12e123 100644
--- a/sysdeps/unix/sysv/linux/msgrcv.c
+++ b/sysdeps/unix/sysv/linux/msgrcv.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/msgsnd.c b/sysdeps/unix/sysv/linux/msgsnd.c
index adf8d17e96..d978f78df7 100644
--- a/sysdeps/unix/sysv/linux/msgsnd.c
+++ b/sysdeps/unix/sysv/linux/msgsnd.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/net/if_arp.h b/sysdeps/unix/sysv/linux/net/if_arp.h
index 2a8933cde7..0f925da4f4 100644
--- a/sysdeps/unix/sysv/linux/net/if_arp.h
+++ b/sysdeps/unix/sysv/linux/net/if_arp.h
@@ -1,7 +1,6 @@
 /* Definitions for Address Resolution Protocol.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/nios2/clone.S b/sysdeps/unix/sysv/linux/nios2/clone.S
index f6732dd58c..bdef4095dc 100644
--- a/sysdeps/unix/sysv/linux/nios2/clone.S
+++ b/sysdeps/unix/sysv/linux/nios2/clone.S
@@ -1,7 +1,6 @@
 /* clone() implementation for Nios II.
    Copyright (C) 2008-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andrew Jenner <andrew@codesourcery.com>, 2008.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/nios2/kernel_stat.h b/sysdeps/unix/sysv/linux/nios2/kernel_stat.h
index 1af30dab6f..6ca04d8ff2 100644
--- a/sysdeps/unix/sysv/linux/nios2/kernel_stat.h
+++ b/sysdeps/unix/sysv/linux/nios2/kernel_stat.h
@@ -1,7 +1,6 @@
 /* Internal definitions for stat functions.  Linux/nios2.
    Copyright (C) 2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/not-cancel.h b/sysdeps/unix/sysv/linux/not-cancel.h
index f06d57426a..82798df4b4 100644
--- a/sysdeps/unix/sysv/linux/not-cancel.h
+++ b/sysdeps/unix/sysv/linux/not-cancel.h
@@ -1,7 +1,6 @@
 /* Uncancelable versions of cancelable interfaces.  Linux/NPTL version.
    Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/nscd_setup_thread.c b/sysdeps/unix/sysv/linux/nscd_setup_thread.c
index 30d1f306c2..00d3a680c2 100644
--- a/sysdeps/unix/sysv/linux/nscd_setup_thread.c
+++ b/sysdeps/unix/sysv/linux/nscd_setup_thread.c
@@ -1,7 +1,6 @@
 /* Setup of nscd worker threads.  Linux verison.
    Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published
diff --git a/sysdeps/unix/sysv/linux/open.c b/sysdeps/unix/sysv/linux/open.c
index aa335ea41e..88e4355039 100644
--- a/sysdeps/unix/sysv/linux/open.c
+++ b/sysdeps/unix/sysv/linux/open.c
@@ -1,7 +1,6 @@
 /* Linux open syscall implementation, non-LFS.
    Copyright (C) 2017-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ppoll.c b/sysdeps/unix/sysv/linux/ppoll.c
index 8ca133b1fa..465dea623d 100644
--- a/sysdeps/unix/sysv/linux/ppoll.c
+++ b/sysdeps/unix/sysv/linux/ppoll.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2006-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2006.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/pread.c b/sysdeps/unix/sysv/linux/pread.c
index ebd7f52438..d2f85584a2 100644
--- a/sysdeps/unix/sysv/linux/pread.c
+++ b/sysdeps/unix/sysv/linux/pread.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/pread64.c b/sysdeps/unix/sysv/linux/pread64.c
index 7631182108..6cff96bcde 100644
--- a/sysdeps/unix/sysv/linux/pread64.c
+++ b/sysdeps/unix/sysv/linux/pread64.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/pselect.c b/sysdeps/unix/sysv/linux/pselect.c
index e7df6e7465..f58c01f25a 100644
--- a/sysdeps/unix/sysv/linux/pselect.c
+++ b/sysdeps/unix/sysv/linux/pselect.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2006-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2006.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ptsname.c b/sysdeps/unix/sysv/linux/ptsname.c
index 9f78ef42d8..cf98f99878 100644
--- a/sysdeps/unix/sysv/linux/ptsname.c
+++ b/sysdeps/unix/sysv/linux/ptsname.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/pwrite.c b/sysdeps/unix/sysv/linux/pwrite.c
index c39ee8a163..341513ce09 100644
--- a/sysdeps/unix/sysv/linux/pwrite.c
+++ b/sysdeps/unix/sysv/linux/pwrite.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/pwrite64.c b/sysdeps/unix/sysv/linux/pwrite64.c
index f39e1238a4..cb006a1c70 100644
--- a/sysdeps/unix/sysv/linux/pwrite64.c
+++ b/sysdeps/unix/sysv/linux/pwrite64.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/recvmmsg.c b/sysdeps/unix/sysv/linux/recvmmsg.c
index 5cd107ffa9..c214321e94 100644
--- a/sysdeps/unix/sysv/linux/recvmmsg.c
+++ b/sysdeps/unix/sysv/linux/recvmmsg.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2010-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Schwab <schwab@redhat.com>, 2010.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/s390/bits/elfclass.h b/sysdeps/unix/sysv/linux/s390/bits/elfclass.h
index c2ac7f72f3..10609d273c 100644
--- a/sysdeps/unix/sysv/linux/s390/bits/elfclass.h
+++ b/sysdeps/unix/sysv/linux/s390/bits/elfclass.h
@@ -1,5 +1,4 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/dl-procinfo.h b/sysdeps/unix/sysv/linux/s390/dl-procinfo.h
index 76ce33e31d..47def4c90f 100644
--- a/sysdeps/unix/sysv/linux/s390/dl-procinfo.h
+++ b/sysdeps/unix/sysv/linux/s390/dl-procinfo.h
@@ -1,7 +1,6 @@
 /* Linux/s390 version of processor capability information handling macros.
    Copyright (C) 2006-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2006.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c b/sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c
index 0ce15a5a2a..09487c11a5 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2009-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/clone.S b/sysdeps/unix/sysv/linux/s390/s390-32/clone.S
index 08145e4156..dbbe5a55ff 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/clone.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/clone.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S b/sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S
index 7cfd66b5f8..e65641ecc9 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/getutent.c b/sysdeps/unix/sysv/linux/s390/s390-32/getutent.c
index 7774a59580..210e875f26 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/getutent.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/getutent.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/getutent_r.c b/sysdeps/unix/sysv/linux/s390/s390-32/getutent_r.c
index eebccece1c..d06441f6b9 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/getutent_r.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/getutent_r.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/getutid.c b/sysdeps/unix/sysv/linux/s390/s390-32/getutid.c
index f50d633e48..79f9d9a106 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/getutid.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/getutid.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/getutid_r.c b/sysdeps/unix/sysv/linux/s390/s390-32/getutid_r.c
index 5039b99a94..d648f2ef70 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/getutid_r.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/getutid_r.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/getutline.c b/sysdeps/unix/sysv/linux/s390/s390-32/getutline.c
index 32b39575b0..7b79cb75b5 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/getutline.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/getutline.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/getutline_r.c b/sysdeps/unix/sysv/linux/s390/s390-32/getutline_r.c
index c9238c5f60..3246dbe2d9 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/getutline_r.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/getutline_r.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/getutmp.c b/sysdeps/unix/sysv/linux/s390/s390-32/getutmp.c
index 5820701f21..bdb8f4bf3e 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/getutmp.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/getutmp.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/getutxent.c b/sysdeps/unix/sysv/linux/s390/s390-32/getutxent.c
index d91795af78..cf27aee4f0 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/getutxent.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/getutxent.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/getutxid.c b/sysdeps/unix/sysv/linux/s390/s390-32/getutxid.c
index d5d457d98d..2a4c9aecee 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/getutxid.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/getutxid.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/getutxline.c b/sysdeps/unix/sysv/linux/s390/s390-32/getutxline.c
index ab0189f653..eb524ecbd4 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/getutxline.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/getutxline.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/login.c b/sysdeps/unix/sysv/linux/s390/s390-32/login.c
index 62742a8a5f..753763f3b5 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/login.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/login.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/login32.c b/sysdeps/unix/sysv/linux/s390/s390-32/login32.c
index e37da4e573..271afa0c77 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/login32.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/login32.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/makecontext.c b/sysdeps/unix/sysv/linux/s390/s390-32/makecontext.c
index e4e0f3a831..bfb7460cca 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/makecontext.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/makecontext.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/pututxline.c b/sysdeps/unix/sysv/linux/s390/s390-32/pututxline.c
index 1dfabc8f37..40736c6335 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/pututxline.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/pututxline.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/register-dump.h b/sysdeps/unix/sysv/linux/s390/s390-32/register-dump.h
index fe96d0d9d8..a4647fc9d0 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/register-dump.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/register-dump.h
@@ -1,6 +1,5 @@
 /* Dump registers.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S b/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
index 37aa2496ad..b0aeb57a00 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S b/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
index 2ab91083b0..27edb0aa45 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/syscall.S b/sysdeps/unix/sysv/linux/s390/s390-32/syscall.S
index 50712b649b..426563b429 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/syscall.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/syscall.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S
index 7639f35de4..a768d6748b 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
index 34fb5dbf5e..c26c228694 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
@@ -1,5 +1,4 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/updwtmp.c b/sysdeps/unix/sysv/linux/s390/s390-32/updwtmp.c
index d4aa0ce2ac..dfe25661ac 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/updwtmp.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/updwtmp.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/updwtmpx.c b/sysdeps/unix/sysv/linux/s390/s390-32/updwtmpx.c
index 51cf1f5ae3..3b95890d32 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/updwtmpx.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/updwtmpx.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/utmp-compat.h b/sysdeps/unix/sysv/linux/s390/s390-32/utmp-compat.h
index 28632f72bd..11c7937897 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/utmp-compat.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/utmp-compat.h
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/utmp-convert.h b/sysdeps/unix/sysv/linux/s390/s390-32/utmp-convert.h
index 9418afb0f4..f2edd4636b 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/utmp-convert.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/utmp-convert.h
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/utmp32.c b/sysdeps/unix/sysv/linux/s390/s390-32/utmp32.c
index 32496e5421..0b3cadec5b 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/utmp32.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/utmp32.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/utmpx-convert.h b/sysdeps/unix/sysv/linux/s390/s390-32/utmpx-convert.h
index ad7de5c455..a4c0d1c5c3 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/utmpx-convert.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/utmpx-convert.h
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/utmpx32.c b/sysdeps/unix/sysv/linux/s390/s390-32/utmpx32.c
index ed970961bf..8a5d56ca45 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/utmpx32.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/utmpx32.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2008-2021 Free Software Foundation, Inc.
-   Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S b/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S
index 019f535426..5ba79c43ad 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/____longjmp_chk.c b/sysdeps/unix/sysv/linux/s390/s390-64/____longjmp_chk.c
index c7b2ab0e79..389ad542bb 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/____longjmp_chk.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/____longjmp_chk.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2009-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/clone.S b/sysdeps/unix/sysv/linux/s390/s390-64/clone.S
index 21d485e9e9..584f0d744f 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/clone.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/clone.S
@@ -1,6 +1,5 @@
 /* Wrapper around clone system call.  64 bit S/390 version.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S b/sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S
index 65f54e310c..edf6265928 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/makecontext.c b/sysdeps/unix/sysv/linux/s390/s390-64/makecontext.c
index 838243de69..43b9b15c9e 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/makecontext.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/makecontext.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/register-dump.h b/sysdeps/unix/sysv/linux/s390/s390-64/register-dump.h
index b5aa8dce5e..1c9ca2e300 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/register-dump.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/register-dump.h
@@ -1,6 +1,5 @@
 /* Dump registers.  64 bit S/390 version.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S b/sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S
index f2603a0d43..ad7ee0f662 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/swapcontext.S b/sysdeps/unix/sysv/linux/s390/s390-64/swapcontext.S
index 85e0242ecf..66090e80d1 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/swapcontext.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/syscall.S b/sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
index 2323225f3c..4368cb14d8 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.S b/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.S
index 0ae81bacf2..9fe8d00eb8 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h b/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
index cbf2553cd8..713d8fffa3 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
@@ -1,6 +1,5 @@
 /* Assembler macros for 64 bit S/390.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/vfork.S b/sysdeps/unix/sysv/linux/s390/s390-64/vfork.S
index 2b2322b964..342dc2f923 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/vfork.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/vfork.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/s390/sigcontextinfo.h b/sysdeps/unix/sysv/linux/s390/sigcontextinfo.h
index 5fc4238619..cf996cc15e 100644
--- a/sysdeps/unix/sysv/linux/s390/sigcontextinfo.h
+++ b/sysdeps/unix/sysv/linux/s390/sigcontextinfo.h
@@ -1,5 +1,4 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/sys/ptrace.h b/sysdeps/unix/sysv/linux/s390/sys/ptrace.h
index 3ddd2e4267..6951a39283 100644
--- a/sysdeps/unix/sysv/linux/s390/sys/ptrace.h
+++ b/sysdeps/unix/sysv/linux/s390/sys/ptrace.h
@@ -1,6 +1,5 @@
 /* `ptrace' debugger support interface.  Linux/S390 version.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/s390/sys/ucontext.h b/sysdeps/unix/sysv/linux/s390/sys/ucontext.h
index d81bf40f3e..1fb8cb9b76 100644
--- a/sysdeps/unix/sysv/linux/s390/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/s390/sys/ucontext.h
@@ -1,5 +1,4 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/unix/sysv/linux/semctl.c b/sysdeps/unix/sysv/linux/semctl.c
index bb2690d30f..95e9f0910a 100644
--- a/sysdeps/unix/sysv/linux/semctl.c
+++ b/sysdeps/unix/sysv/linux/semctl.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/semget.c b/sysdeps/unix/sysv/linux/semget.c
index 1187a56540..1e6bc65ed4 100644
--- a/sysdeps/unix/sysv/linux/semget.c
+++ b/sysdeps/unix/sysv/linux/semget.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/semop.c b/sysdeps/unix/sysv/linux/semop.c
index 9f863886c0..52460db080 100644
--- a/sysdeps/unix/sysv/linux/semop.c
+++ b/sysdeps/unix/sysv/linux/semop.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/semtimedop.c b/sysdeps/unix/sysv/linux/semtimedop.c
index d4fea4e55a..43577535ef 100644
--- a/sysdeps/unix/sysv/linux/semtimedop.c
+++ b/sysdeps/unix/sysv/linux/semtimedop.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sendmmsg.c b/sysdeps/unix/sysv/linux/sendmmsg.c
index 10aaff4d1f..d75adbf30e 100644
--- a/sysdeps/unix/sysv/linux/sendmmsg.c
+++ b/sysdeps/unix/sysv/linux/sendmmsg.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gmail.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/setipv4sourcefilter.c b/sysdeps/unix/sysv/linux/setipv4sourcefilter.c
index e452bcbfff..a143473666 100644
--- a/sysdeps/unix/sysv/linux/setipv4sourcefilter.c
+++ b/sysdeps/unix/sysv/linux/setipv4sourcefilter.c
@@ -1,7 +1,6 @@
 /* Set IPv4 source filter.  Linux version.
    Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/setsourcefilter.c b/sysdeps/unix/sysv/linux/setsourcefilter.c
index 92150952f4..d45e659706 100644
--- a/sysdeps/unix/sysv/linux/setsourcefilter.c
+++ b/sysdeps/unix/sysv/linux/setsourcefilter.c
@@ -1,7 +1,6 @@
 /* Set source filter.  Linux version.
    Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sh/sigcontextinfo.h b/sysdeps/unix/sysv/linux/sh/sigcontextinfo.h
index 0ca726d4ca..d36403117b 100644
--- a/sysdeps/unix/sysv/linux/sh/sigcontextinfo.h
+++ b/sysdeps/unix/sysv/linux/sh/sigcontextinfo.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Philip Blundell <philb@gnu.org>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sh/sysdep.h b/sysdeps/unix/sysv/linux/sh/sysdep.h
index 97aa92dfa2..3eafbb0055 100644
--- a/sysdeps/unix/sysv/linux/sh/sysdep.h
+++ b/sysdeps/unix/sysv/linux/sh/sysdep.h
@@ -1,7 +1,5 @@
 /* Copyright (C) 1992-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>, August 1995.
-   Changed by Kaz Kojima, <kkojima@rr.iij4u.or.jp>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/shmat.c b/sysdeps/unix/sysv/linux/shmat.c
index 810084e7a5..268d2a392a 100644
--- a/sysdeps/unix/sysv/linux/shmat.c
+++ b/sysdeps/unix/sysv/linux/shmat.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/shmctl.c b/sysdeps/unix/sysv/linux/shmctl.c
index f52018bfae..7582c28985 100644
--- a/sysdeps/unix/sysv/linux/shmctl.c
+++ b/sysdeps/unix/sysv/linux/shmctl.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/shmdt.c b/sysdeps/unix/sysv/linux/shmdt.c
index e9cc896866..7176fe358d 100644
--- a/sysdeps/unix/sysv/linux/shmdt.c
+++ b/sysdeps/unix/sysv/linux/shmdt.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/shmget.c b/sysdeps/unix/sysv/linux/shmget.c
index faedfebc81..3f0cd54fd4 100644
--- a/sysdeps/unix/sysv/linux/shmget.c
+++ b/sysdeps/unix/sysv/linux/shmget.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sigset-cvt-mask.h b/sysdeps/unix/sysv/linux/sigset-cvt-mask.h
index 7ba2254e40..fb8e2e52a5 100644
--- a/sysdeps/unix/sysv/linux/sigset-cvt-mask.h
+++ b/sysdeps/unix/sysv/linux/sigset-cvt-mask.h
@@ -2,7 +2,6 @@
    Linux version.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Joe Keane <jgk@jgk.org>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sigstack.c b/sysdeps/unix/sysv/linux/sigstack.c
index 8225b17ba1..c2d3e3f95d 100644
--- a/sysdeps/unix/sysv/linux/sigstack.c
+++ b/sysdeps/unix/sysv/linux/sigstack.c
@@ -1,7 +1,6 @@
 /* Emulate sigstack function using sigaltstack.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/readelflib.c b/sysdeps/unix/sysv/linux/sparc/readelflib.c
index bbfc81337a..22433b2a34 100644
--- a/sysdeps/unix/sysv/linux/sparc/readelflib.c
+++ b/sysdeps/unix/sysv/linux/sparc/readelflib.c
@@ -1,7 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>, 1999 and
-		  Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S b/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
index cb89333739..8d8ee43849 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@tamu.edu).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/getcontext.S b/sysdeps/unix/sysv/linux/sparc/sparc32/getcontext.S
index 693b8399bf..46ba7d5c47 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/getcontext.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/getcontext.S
@@ -1,7 +1,6 @@
 /* Save current context.
    Copyright (C) 2008-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David S. Miller <davem@davemloft.net>, 2008.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libc_sigaction.c b/sysdeps/unix/sysv/linux/sparc/sparc32/libc_sigaction.c
index 09a052fc05..1cd73c87b9 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/libc_sigaction.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libc_sigaction.c
@@ -1,7 +1,6 @@
 /* POSIX.1 sigaction call for Linux/SPARC.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Miguel de Icaza <miguel@nuclecu.unam.mx>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/makecontext.c b/sysdeps/unix/sysv/linux/sparc/sparc32/makecontext.c
index 3635ad4894..50305e80fe 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/makecontext.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/makecontext.c
@@ -1,7 +1,6 @@
 /* Create new context.
    Copyright (C) 2008-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David S. Miller <davem@davemloft.net>, 2008.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/pipe.S b/sysdeps/unix/sysv/linux/sparc/sparc32/pipe.S
index 39a815b6f0..0fa155fa61 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/pipe.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/pipe.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/register-dump.h b/sysdeps/unix/sysv/linux/sparc/sparc32/register-dump.h
index 9bb75b680a..23a2d50a95 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/register-dump.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/register-dump.h
@@ -1,7 +1,6 @@
 /* Dump registers.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/setcontext.S b/sysdeps/unix/sysv/linux/sparc/sparc32/setcontext.S
index 2362f14d5b..e803a63e44 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/setcontext.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/setcontext.S
@@ -1,7 +1,6 @@
 /* Install given context.
    Copyright (C) 2008-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David S. Miller <davem@davemloft.net>, 2008.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sigcontextinfo.h b/sysdeps/unix/sysv/linux/sparc/sparc32/sigcontextinfo.h
index ca9c9ccea9..4d7cec1f29 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/sigcontextinfo.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/sigcontextinfo.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/swapcontext.S b/sysdeps/unix/sysv/linux/sparc/sparc32/swapcontext.S
index 1db30c5b56..eef3ec2011 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/swapcontext.S
@@ -1,7 +1,6 @@
 /* Save current context and install the given one.
    Copyright (C) 2008-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David S. Miller <davem@davemloft.net>, 2008.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h b/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h
index 7cbfdada63..4e50e506f3 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, January 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S b/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S
index 0f5633836d..bc087e89a6 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S b/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
index e4fc3c35a8..e6221a2fb1 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@tamu.edu).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S b/sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S
index 092c6deee6..e921bcbb63 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@tamu.edu).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libc_sigaction.c b/sysdeps/unix/sysv/linux/sparc/sparc64/libc_sigaction.c
index 6cfcf0a4cb..4ba04a3242 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/libc_sigaction.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libc_sigaction.c
@@ -1,8 +1,6 @@
 /* POSIX.1 sigaction call for Linux/SPARC64.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Miguel de Icaza <miguel@nuclecu.unam.mx> and
-		  Jakub Jelinek <jj@ultra.linux.cz>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S b/sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S
index 0aaad78abe..a1068fb52e 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@tamu.edu).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c b/sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c
index 26d5466af6..449a3b4f6c 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/pipe.S b/sysdeps/unix/sysv/linux/sparc/sparc64/pipe.S
index a0a9581604..da6ea71729 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/pipe.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/pipe.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/register-dump.h b/sysdeps/unix/sysv/linux/sparc/sparc64/register-dump.h
index f86686dd59..13dcdc33ed 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/register-dump.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/register-dump.h
@@ -1,7 +1,6 @@
 /* Dump registers.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jj@ultra.linux.cz>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S b/sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S
index e316fd296f..1bedc28a88 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@tamu.edu).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/setjmp.S b/sysdeps/unix/sysv/linux/sparc/sparc64/setjmp.S
index 676e8c3ba2..d93e12f91c 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/setjmp.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/setjmp.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@tamu.edu).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/sigcontextinfo.h b/sysdeps/unix/sysv/linux/sparc/sparc64/sigcontextinfo.h
index 63378da26b..9f8cfbf4ae 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/sigcontextinfo.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/sigcontextinfo.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jj@ultra.linux.cz>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/swapcontext.c b/sysdeps/unix/sysv/linux/sparc/sparc64/swapcontext.c
index 53248e6156..41995fdf4f 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/swapcontext.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/swapcontext.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h b/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
index 5aa80e32bf..693c8a8b46 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <richard@gnu.ai.mit.edu>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/ucontext_i.h b/sysdeps/unix/sysv/linux/sparc/sparc64/ucontext_i.h
index 25db67169d..801faa31ed 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/ucontext_i.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/ucontext_i.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-     Contributed by Jakub Jelinek <jakub@redhat.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S b/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S
index 3306be7db0..272ba63291 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/sparc/sysdep.h b/sysdeps/unix/sysv/linux/sparc/sysdep.h
index 0c55902178..8ff5b24eb1 100644
--- a/sysdeps/unix/sysv/linux/sparc/sysdep.h
+++ b/sysdeps/unix/sysv/linux/sparc/sysdep.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2000.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/statfs.c b/sysdeps/unix/sysv/linux/statfs.c
index ee248b4212..394407e658 100644
--- a/sysdeps/unix/sysv/linux/statfs.c
+++ b/sysdeps/unix/sysv/linux/statfs.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/statvfs.c b/sysdeps/unix/sysv/linux/statvfs.c
index 210242b9a0..e295803f1a 100644
--- a/sysdeps/unix/sysv/linux/statvfs.c
+++ b/sysdeps/unix/sysv/linux/statvfs.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/timer_create.c b/sysdeps/unix/sysv/linux/timer_create.c
index fb904a86e3..1406d19feb 100644
--- a/sysdeps/unix/sysv/linux/timer_create.c
+++ b/sysdeps/unix/sysv/linux/timer_create.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public License as
diff --git a/sysdeps/unix/sysv/linux/timer_delete.c b/sysdeps/unix/sysv/linux/timer_delete.c
index c068ca4c41..32d26bf34d 100644
--- a/sysdeps/unix/sysv/linux/timer_delete.c
+++ b/sysdeps/unix/sysv/linux/timer_delete.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public License as
diff --git a/sysdeps/unix/sysv/linux/timer_getoverr.c b/sysdeps/unix/sysv/linux/timer_getoverr.c
index 18467c4059..5c92e0eb6d 100644
--- a/sysdeps/unix/sysv/linux/timer_getoverr.c
+++ b/sysdeps/unix/sysv/linux/timer_getoverr.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public License as
diff --git a/sysdeps/unix/sysv/linux/timer_gettime.c b/sysdeps/unix/sysv/linux/timer_gettime.c
index a0537060c8..c1209714bb 100644
--- a/sysdeps/unix/sysv/linux/timer_gettime.c
+++ b/sysdeps/unix/sysv/linux/timer_gettime.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public License as
diff --git a/sysdeps/unix/sysv/linux/timer_routines.c b/sysdeps/unix/sysv/linux/timer_routines.c
index 02bad0384e..67a49f19a7 100644
--- a/sysdeps/unix/sysv/linux/timer_routines.c
+++ b/sysdeps/unix/sysv/linux/timer_routines.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public License as
diff --git a/sysdeps/unix/sysv/linux/timer_settime.c b/sysdeps/unix/sysv/linux/timer_settime.c
index 8884abfdc6..24706e45d8 100644
--- a/sysdeps/unix/sysv/linux/timer_settime.c
+++ b/sysdeps/unix/sysv/linux/timer_settime.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public License as
diff --git a/sysdeps/unix/sysv/linux/umount.c b/sysdeps/unix/sysv/linux/umount.c
index 3d72207a64..010cebf162 100644
--- a/sysdeps/unix/sysv/linux/umount.c
+++ b/sysdeps/unix/sysv/linux/umount.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/unlockpt.c b/sysdeps/unix/sysv/linux/unlockpt.c
index ae5148afe7..7a2055a31a 100644
--- a/sysdeps/unix/sysv/linux/unlockpt.c
+++ b/sysdeps/unix/sysv/linux/unlockpt.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/updwtmp.c b/sysdeps/unix/sysv/linux/updwtmp.c
index 93d72e75a6..ff23e24b5a 100644
--- a/sysdeps/unix/sysv/linux/updwtmp.c
+++ b/sysdeps/unix/sysv/linux/updwtmp.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/ustat.c b/sysdeps/unix/sysv/linux/ustat.c
index df6673a716..0f16795779 100644
--- a/sysdeps/unix/sysv/linux/ustat.c
+++ b/sysdeps/unix/sysv/linux/ustat.c
@@ -1,7 +1,6 @@
 /* Get filesystem statistics (deprecated).  Linux version.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/utmp_file.c b/sysdeps/unix/sysv/linux/utmp_file.c
index 78d10db8c8..e5adcec6d0 100644
--- a/sysdeps/unix/sysv/linux/utmp_file.c
+++ b/sysdeps/unix/sysv/linux/utmp_file.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/x86/readelflib.c b/sysdeps/unix/sysv/linux/x86/readelflib.c
index 4a9bcc82cb..b10871d9ba 100644
--- a/sysdeps/unix/sysv/linux/x86/readelflib.c
+++ b/sysdeps/unix/sysv/linux/x86/readelflib.c
@@ -1,7 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>, 1999 and
-		  Jakub Jelinek <jakub@redhat.com>, 2000.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/x86_64/__start_context.S b/sysdeps/unix/sysv/linux/x86_64/__start_context.S
index 49381e369e..af6b971cec 100644
--- a/sysdeps/unix/sysv/linux/x86_64/__start_context.S
+++ b/sysdeps/unix/sysv/linux/x86_64/__start_context.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>, 2002.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/x86_64/getcontext.S b/sysdeps/unix/sysv/linux/x86_64/getcontext.S
index 5ca779b15b..9bee1d73d4 100644
--- a/sysdeps/unix/sysv/linux/x86_64/getcontext.S
+++ b/sysdeps/unix/sysv/linux/x86_64/getcontext.S
@@ -1,7 +1,6 @@
 /* Save current context.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>, 2002.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/x86_64/makecontext.c b/sysdeps/unix/sysv/linux/x86_64/makecontext.c
index ceb5c02bad..c148f38e96 100644
--- a/sysdeps/unix/sysv/linux/x86_64/makecontext.c
+++ b/sysdeps/unix/sysv/linux/x86_64/makecontext.c
@@ -1,7 +1,6 @@
 /* Create new context.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>, 2002.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/x86_64/setcontext.S b/sysdeps/unix/sysv/linux/x86_64/setcontext.S
index 2330bd2698..b071fd9fd0 100644
--- a/sysdeps/unix/sysv/linux/x86_64/setcontext.S
+++ b/sysdeps/unix/sysv/linux/x86_64/setcontext.S
@@ -1,7 +1,6 @@
 /* Install given context.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>, 2002.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/unix/sysv/linux/x86_64/swapcontext.S b/sysdeps/unix/sysv/linux/x86_64/swapcontext.S
index dbc1a3a840..50e1c5ae39 100644
--- a/sysdeps/unix/sysv/linux/x86_64/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/x86_64/swapcontext.S
@@ -1,7 +1,6 @@
 /* Save current context and install the given one.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>, 2002.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public