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>

44 files changed, 0 insertions, 81 deletions

diff --git a/sysdeps/x86_64/fpu/e_exp2l.S b/sysdeps/x86_64/fpu/e_exp2l.S
index f16760840b..1b664473d8 100644
--- a/sysdeps/x86_64/fpu/e_exp2l.S
+++ b/sysdeps/x86_64/fpu/e_exp2l.S
@@ -1,7 +1,4 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
- * Adapted for exp2 by Ulrich Drepper <drepper@cygnus.com>.
- * Adapted for x86-64 by Andreas Jaeger <aj@suse.de>.
  * Public domain.
  */
 
diff --git a/sysdeps/x86_64/fpu/e_expl.S b/sysdeps/x86_64/fpu/e_expl.S
index 9835ac2a3b..203b1ed2c5 100644
--- a/sysdeps/x86_64/fpu/e_expl.S
+++ b/sysdeps/x86_64/fpu/e_expl.S
@@ -1,8 +1,6 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
  * Public domain.
  *
- * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
  */
 
 /*
diff --git a/sysdeps/x86_64/fpu/e_fmodl.S b/sysdeps/x86_64/fpu/e_fmodl.S
index a06ad6833b..d754668bce 100644
--- a/sysdeps/x86_64/fpu/e_fmodl.S
+++ b/sysdeps/x86_64/fpu/e_fmodl.S
@@ -1,9 +1,6 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
  * Public domain.
  *
- * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
- * Adapted for x86-64 by Andreas Jaeger <aj@suse.de>.
  */
 
 #include <machine/asm.h>
diff --git a/sysdeps/x86_64/fpu/e_ilogbl.S b/sysdeps/x86_64/fpu/e_ilogbl.S
index ae6c0fe6f9..174647344d 100644
--- a/sysdeps/x86_64/fpu/e_ilogbl.S
+++ b/sysdeps/x86_64/fpu/e_ilogbl.S
@@ -1,7 +1,4 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
- * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
- * Adapted for x86-64 by Andreas Jaeger <aj@suse.de>.
  * Public domain.
  */
 
diff --git a/sysdeps/x86_64/fpu/e_log10l.S b/sysdeps/x86_64/fpu/e_log10l.S
index 552bc00ad0..cebde82715 100644
--- a/sysdeps/x86_64/fpu/e_log10l.S
+++ b/sysdeps/x86_64/fpu/e_log10l.S
@@ -1,11 +1,6 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
  * Public domain.
  *
- * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
- *
- * Changed to use fyl2xp1 for values near 1, <drepper@cygnus.com>.
- * Adapted for x86-64 by Andreas Jaeger <aj@suse.de>.
  */
 
 #include <machine/asm.h>
diff --git a/sysdeps/x86_64/fpu/e_log2l.S b/sysdeps/x86_64/fpu/e_log2l.S
index 1459cef3d7..dd3d9cb86a 100644
--- a/sysdeps/x86_64/fpu/e_log2l.S
+++ b/sysdeps/x86_64/fpu/e_log2l.S
@@ -1,10 +1,6 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
- * Adapted for use as log2 by Ulrich Drepper <drepper@cygnus.com>.
  * Public domain.
  *
- * Changed to use fyl2xp1 for values near 1, <drepper@cygnus.com>.
- * Adapted for x86-64 by Andreas Jaeger <aj@suse.de>.
  */
 
 #include <machine/asm.h>
diff --git a/sysdeps/x86_64/fpu/e_logl.S b/sysdeps/x86_64/fpu/e_logl.S
index 37cd5b6ae9..126f6c5332 100644
--- a/sysdeps/x86_64/fpu/e_logl.S
+++ b/sysdeps/x86_64/fpu/e_logl.S
@@ -1,9 +1,6 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
  * Public domain.
  *
- * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
- * Adapted for x86-64 by Andreas Jaeger <aj@suse.de>.
  */
 
 #include <machine/asm.h>
diff --git a/sysdeps/x86_64/fpu/e_powl.S b/sysdeps/x86_64/fpu/e_powl.S
index ca3306c02d..2a404eb3f8 100644
--- a/sysdeps/x86_64/fpu/e_powl.S
+++ b/sysdeps/x86_64/fpu/e_powl.S
@@ -1,7 +1,6 @@
 /* ix87 specific implementation of pow function.
    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/x86_64/fpu/e_remainderl.S b/sysdeps/x86_64/fpu/e_remainderl.S
index 994bfb3e80..c957f98897 100644
--- a/sysdeps/x86_64/fpu/e_remainderl.S
+++ b/sysdeps/x86_64/fpu/e_remainderl.S
@@ -1,9 +1,6 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
  * Public domain.
  *
- * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
- * Adapted for x86-64 by Andreas Jaeger <aj@suse.de>.
  */
 
 #include <machine/asm.h>
diff --git a/sysdeps/x86_64/fpu/e_scalbl.S b/sysdeps/x86_64/fpu/e_scalbl.S
index c13cba4b13..1b1b5cca26 100644
--- a/sysdeps/x86_64/fpu/e_scalbl.S
+++ b/sysdeps/x86_64/fpu/e_scalbl.S
@@ -1,11 +1,5 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
  * Public domain.
- *
- * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
- * Adapted for x86-64 by Andreas Jaeger <aj@suse.de>
- *
- * Correct handling of y==-inf <drepper@gnu>
  */
 
 #include <machine/asm.h>
diff --git a/sysdeps/x86_64/fpu/fedisblxcpt.c b/sysdeps/x86_64/fpu/fedisblxcpt.c
index 4a95c42497..0deab0f13c 100644
--- a/sysdeps/x86_64/fpu/fedisblxcpt.c
+++ b/sysdeps/x86_64/fpu/fedisblxcpt.c
@@ -1,7 +1,6 @@
 /* Disable floating-point exceptions.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>, 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/x86_64/fpu/feenablxcpt.c b/sysdeps/x86_64/fpu/feenablxcpt.c
index cb12b15f8c..8e109106c5 100644
--- a/sysdeps/x86_64/fpu/feenablxcpt.c
+++ b/sysdeps/x86_64/fpu/feenablxcpt.c
@@ -1,7 +1,6 @@
 /* Enable floating-point exceptions.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>, 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/x86_64/fpu/fegetexcept.c b/sysdeps/x86_64/fpu/fegetexcept.c
index 9914906883..360aed3b40 100644
--- a/sysdeps/x86_64/fpu/fegetexcept.c
+++ b/sysdeps/x86_64/fpu/fegetexcept.c
@@ -1,7 +1,6 @@
 /* Get enabled floating-point exceptions.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>, 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/x86_64/fpu/fegetround.c b/sysdeps/x86_64/fpu/fegetround.c
index 0039987696..c67161bec0 100644
--- a/sysdeps/x86_64/fpu/fegetround.c
+++ b/sysdeps/x86_64/fpu/fegetround.c
@@ -1,7 +1,6 @@
 /* Return current rounding direction.
    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/x86_64/fpu/feupdateenv.c b/sysdeps/x86_64/fpu/feupdateenv.c
index e9b9fa9f78..9afcb1dd22 100644
--- a/sysdeps/x86_64/fpu/feupdateenv.c
+++ b/sysdeps/x86_64/fpu/feupdateenv.c
@@ -1,7 +1,6 @@
 /* Install given floating-point environment and raise exceptions.
    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/x86_64/fpu/multiarch/s_ceil-sse4_1.S b/sysdeps/x86_64/fpu/multiarch/s_ceil-sse4_1.S
index 41bdccfcdf..84734337aa 100644
--- a/sysdeps/x86_64/fpu/multiarch/s_ceil-sse4_1.S
+++ b/sysdeps/x86_64/fpu/multiarch/s_ceil-sse4_1.S
@@ -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.come>, 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/x86_64/fpu/multiarch/s_ceilf-sse4_1.S b/sysdeps/x86_64/fpu/multiarch/s_ceilf-sse4_1.S
index fae7d7893b..d4b12a0765 100644
--- a/sysdeps/x86_64/fpu/multiarch/s_ceilf-sse4_1.S
+++ b/sysdeps/x86_64/fpu/multiarch/s_ceilf-sse4_1.S
@@ -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.come>, 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/x86_64/fpu/multiarch/s_floor-sse4_1.S b/sysdeps/x86_64/fpu/multiarch/s_floor-sse4_1.S
index 4e8ec26da6..5c42b3cc37 100644
--- a/sysdeps/x86_64/fpu/multiarch/s_floor-sse4_1.S
+++ b/sysdeps/x86_64/fpu/multiarch/s_floor-sse4_1.S
@@ -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.come>, 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/x86_64/fpu/multiarch/s_floorf-sse4_1.S b/sysdeps/x86_64/fpu/multiarch/s_floorf-sse4_1.S
index 5d4151f64b..d9d1b321b1 100644
--- a/sysdeps/x86_64/fpu/multiarch/s_floorf-sse4_1.S
+++ b/sysdeps/x86_64/fpu/multiarch/s_floorf-sse4_1.S
@@ -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.come>, 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/x86_64/fpu/multiarch/s_fma.c b/sysdeps/x86_64/fpu/multiarch/s_fma.c
index 91e9f76b49..8ebf72103f 100644
--- a/sysdeps/x86_64/fpu/multiarch/s_fma.c
+++ b/sysdeps/x86_64/fpu/multiarch/s_fma.c
@@ -1,6 +1,5 @@
 /* FMA version of fma.
    Copyright (C) 2009-2021 Free Software Foundation, Inc.
-   Contributed by Intel Corporation.
    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/x86_64/fpu/multiarch/s_nearbyint-sse4_1.S b/sysdeps/x86_64/fpu/multiarch/s_nearbyint-sse4_1.S
index 7844f8858b..3e9da46b79 100644
--- a/sysdeps/x86_64/fpu/multiarch/s_nearbyint-sse4_1.S
+++ b/sysdeps/x86_64/fpu/multiarch/s_nearbyint-sse4_1.S
@@ -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.come>, 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/x86_64/fpu/multiarch/s_nearbyintf-sse4_1.S b/sysdeps/x86_64/fpu/multiarch/s_nearbyintf-sse4_1.S
index 710c2d227d..18d811cd00 100644
--- a/sysdeps/x86_64/fpu/multiarch/s_nearbyintf-sse4_1.S
+++ b/sysdeps/x86_64/fpu/multiarch/s_nearbyintf-sse4_1.S
@@ -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.come>, 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/x86_64/fpu/multiarch/s_rint-sse4_1.S b/sysdeps/x86_64/fpu/multiarch/s_rint-sse4_1.S
index eb749fe79b..4ecf380833 100644
--- a/sysdeps/x86_64/fpu/multiarch/s_rint-sse4_1.S
+++ b/sysdeps/x86_64/fpu/multiarch/s_rint-sse4_1.S
@@ -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.come>, 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/x86_64/fpu/multiarch/s_rintf-sse4_1.S b/sysdeps/x86_64/fpu/multiarch/s_rintf-sse4_1.S
index f841d41356..8e71200a13 100644
--- a/sysdeps/x86_64/fpu/multiarch/s_rintf-sse4_1.S
+++ b/sysdeps/x86_64/fpu/multiarch/s_rintf-sse4_1.S
@@ -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.come>, 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/x86_64/fpu/s_ceill.S b/sysdeps/x86_64/fpu/s_ceill.S
index 8f2bd351f6..16dbecd56d 100644
--- a/sysdeps/x86_64/fpu/s_ceill.S
+++ b/sysdeps/x86_64/fpu/s_ceill.S
@@ -1,7 +1,4 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
- * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
- * Changes for x86-64 by Andreas Jaeger <aj@suse.de>
  * Public domain.
  */
 
diff --git a/sysdeps/x86_64/fpu/s_copysign.S b/sysdeps/x86_64/fpu/s_copysign.S
index d3e48c6ea0..eb7d0ad309 100644
--- a/sysdeps/x86_64/fpu/s_copysign.S
+++ b/sysdeps/x86_64/fpu/s_copysign.S
@@ -1,7 +1,6 @@
 /* copy sign, double version.
    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/x86_64/fpu/s_copysignf.S b/sysdeps/x86_64/fpu/s_copysignf.S
index 6e83826751..eacff21f17 100644
--- a/sysdeps/x86_64/fpu/s_copysignf.S
+++ b/sysdeps/x86_64/fpu/s_copysignf.S
@@ -1,7 +1,6 @@
 /* copy sign, double version.
    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/x86_64/fpu/s_copysignl.S b/sysdeps/x86_64/fpu/s_copysignl.S
index 8616205d38..3ec388a6ef 100644
--- a/sysdeps/x86_64/fpu/s_copysignl.S
+++ b/sysdeps/x86_64/fpu/s_copysignl.S
@@ -1,7 +1,4 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
- * Changes for long double by Ulrich Drepper <drepper@cygnus.com>.
- * Adopted for x86-64 by Andreas Jaeger <aj@suse.de>.
  * Public domain.
  */
 
diff --git a/sysdeps/x86_64/fpu/s_finitel.S b/sysdeps/x86_64/fpu/s_finitel.S
index 9e49796901..12b3104374 100644
--- a/sysdeps/x86_64/fpu/s_finitel.S
+++ b/sysdeps/x86_64/fpu/s_finitel.S
@@ -1,7 +1,3 @@
-/*
- * Written by Joe Keane <jgk@jgk.org>.
- * Adopted for x86-64 by Andreas Jaeger <aj@suse.de>.
- */
 
 #include <machine/asm.h>
 
diff --git a/sysdeps/x86_64/fpu/s_floorl.S b/sysdeps/x86_64/fpu/s_floorl.S
index 75f8255648..b74d1a4d6b 100644
--- a/sysdeps/x86_64/fpu/s_floorl.S
+++ b/sysdeps/x86_64/fpu/s_floorl.S
@@ -1,7 +1,4 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
- * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
- * Changes for x86-64 by Andreas Jaeger <aj@suse.de>=09
  * Public domain.
  */
 
diff --git a/sysdeps/x86_64/fpu/s_fmax.S b/sysdeps/x86_64/fpu/s_fmax.S
index eb4c6fb47c..bb19b027a1 100644
--- a/sysdeps/x86_64/fpu/s_fmax.S
+++ b/sysdeps/x86_64/fpu/s_fmax.S
@@ -1,7 +1,6 @@
 /* Compute maximum of two numbers, regarding NaN as missing argument.
    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/x86_64/fpu/s_fmaxf.S b/sysdeps/x86_64/fpu/s_fmaxf.S
index 754e3dea23..315860e823 100644
--- a/sysdeps/x86_64/fpu/s_fmaxf.S
+++ b/sysdeps/x86_64/fpu/s_fmaxf.S
@@ -1,7 +1,6 @@
 /* Compute maximum of two numbers, regarding NaN as missing argument.
    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/x86_64/fpu/s_fmaxl.S b/sysdeps/x86_64/fpu/s_fmaxl.S
index 4a15a08ab7..689f544265 100644
--- a/sysdeps/x86_64/fpu/s_fmaxl.S
+++ b/sysdeps/x86_64/fpu/s_fmaxl.S
@@ -1,7 +1,6 @@
 /* Compute maximum of two numbers, regarding NaN as missing argument.
    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/x86_64/fpu/s_fmin.S b/sysdeps/x86_64/fpu/s_fmin.S
index 46c6b7fb14..c178eeee97 100644
--- a/sysdeps/x86_64/fpu/s_fmin.S
+++ b/sysdeps/x86_64/fpu/s_fmin.S
@@ -1,7 +1,6 @@
 /* Compute minimum of two numbers, regarding NaN as missing argument.
    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/x86_64/fpu/s_fminf.S b/sysdeps/x86_64/fpu/s_fminf.S
index f4d083f364..df0559fc07 100644
--- a/sysdeps/x86_64/fpu/s_fminf.S
+++ b/sysdeps/x86_64/fpu/s_fminf.S
@@ -1,7 +1,6 @@
 /* Compute minimum of two numbers, regarding NaN as missing argument.
    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/x86_64/fpu/s_fminl.S b/sysdeps/x86_64/fpu/s_fminl.S
index 264380652c..66716ac86a 100644
--- a/sysdeps/x86_64/fpu/s_fminl.S
+++ b/sysdeps/x86_64/fpu/s_fminl.S
@@ -1,7 +1,6 @@
 /* Compute minimum of two numbers, regarding NaN as missing argument.
    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/x86_64/fpu/s_llrint.S b/sysdeps/x86_64/fpu/s_llrint.S
index 9855bdf1b2..59c5130c37 100644
--- a/sysdeps/x86_64/fpu/s_llrint.S
+++ b/sysdeps/x86_64/fpu/s_llrint.S
@@ -2,7 +2,6 @@
    direction.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.d>, 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/x86_64/fpu/s_llrintf.S b/sysdeps/x86_64/fpu/s_llrintf.S
index 8c7739556b..655db75696 100644
--- a/sysdeps/x86_64/fpu/s_llrintf.S
+++ b/sysdeps/x86_64/fpu/s_llrintf.S
@@ -2,7 +2,6 @@
    direction.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.d>, 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/x86_64/fpu/s_log1pl.S b/sysdeps/x86_64/fpu/s_log1pl.S
index 947e5e4552..8219f6fbcc 100644
--- a/sysdeps/x86_64/fpu/s_log1pl.S
+++ b/sysdeps/x86_64/fpu/s_log1pl.S
@@ -1,9 +1,6 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
  * Public domain.
  *
- * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
- * Adapted for x86-64 by Andreas Jaeger <aj@suse.de>.
  */
 
 #include <machine/asm.h>
diff --git a/sysdeps/x86_64/fpu/s_nearbyintl.S b/sysdeps/x86_64/fpu/s_nearbyintl.S
index 80508bdbee..fae4dac3e5 100644
--- a/sysdeps/x86_64/fpu/s_nearbyintl.S
+++ b/sysdeps/x86_64/fpu/s_nearbyintl.S
@@ -1,8 +1,6 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
  * Public domain.
  */
-/* Adapted for use as nearbyint by Ulrich Drepper <drepper@cygnus.com>.  */
 
 #include <libm-alias-ldouble.h>
 #include <machine/asm.h>
diff --git a/sysdeps/x86_64/fpu/s_scalbnl.S b/sysdeps/x86_64/fpu/s_scalbnl.S
index 6c7683c32b..cfb58cfb92 100644
--- a/sysdeps/x86_64/fpu/s_scalbnl.S
+++ b/sysdeps/x86_64/fpu/s_scalbnl.S
@@ -1,7 +1,4 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
- * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
- * Changes for x86-64 by Andreas Jaeger <aj@suse.de>=09
  * Public domain.
  */
 
diff --git a/sysdeps/x86_64/fpu/s_signbit.S b/sysdeps/x86_64/fpu/s_signbit.S
index bd219bc8f1..e6d25ea28b 100644
--- a/sysdeps/x86_64/fpu/s_signbit.S
+++ b/sysdeps/x86_64/fpu/s_signbit.S
@@ -1,7 +1,6 @@
 /* Return nonzero value if number is negative.
    Copyright (C) 2009-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redha.com>, 2009.
 
    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/x86_64/fpu/s_signbitf.S b/sysdeps/x86_64/fpu/s_signbitf.S
index 96f3cb729f..e33663d433 100644
--- a/sysdeps/x86_64/fpu/s_signbitf.S
+++ b/sysdeps/x86_64/fpu/s_signbitf.S
@@ -1,7 +1,6 @@
 /* Return nonzero value if number is negative.
    Copyright (C) 2009-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redha.com>, 2009.
 
    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/x86_64/fpu/s_truncl.S b/sysdeps/x86_64/fpu/s_truncl.S
index a750b3c8fb..71f56a4435 100644
--- a/sysdeps/x86_64/fpu/s_truncl.S
+++ b/sysdeps/x86_64/fpu/s_truncl.S
@@ -1,7 +1,6 @@
 /* Truncate long double value.
    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