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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/ieee754/dbl-64
parent04f2125c6eff341f9c52682866d1eea8d204c852 (diff)
downloadglibc-30891f35fa7da832b66d80d0807610df361851f3.tar.gz
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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/ieee754/dbl-64')
-rw-r--r--sysdeps/ieee754/dbl-64/asincos.tbl1
-rw-r--r--sysdeps/ieee754/dbl-64/atnat.h1
-rw-r--r--sysdeps/ieee754/dbl-64/atnat2.h1
-rw-r--r--sysdeps/ieee754/dbl-64/branred.c1
-rw-r--r--sysdeps/ieee754/dbl-64/branred.h1
-rw-r--r--sysdeps/ieee754/dbl-64/dla.h1
-rw-r--r--sysdeps/ieee754/dbl-64/e_acosh.c1
-rw-r--r--sysdeps/ieee754/dbl-64/e_atanh.c1
-rw-r--r--sysdeps/ieee754/dbl-64/e_cosh.c1
-rw-r--r--sysdeps/ieee754/dbl-64/e_fmod.c1
-rw-r--r--sysdeps/ieee754/dbl-64/e_gamma_r.c1
-rw-r--r--sysdeps/ieee754/dbl-64/mydefs.h1
-rw-r--r--sysdeps/ieee754/dbl-64/powtwo.tbl1
-rw-r--r--sysdeps/ieee754/dbl-64/root.tbl1
-rw-r--r--sysdeps/ieee754/dbl-64/s_cbrt.c2
-rw-r--r--sysdeps/ieee754/dbl-64/s_floor.c1
-rw-r--r--sysdeps/ieee754/dbl-64/s_fma.c1
-rw-r--r--sysdeps/ieee754/dbl-64/s_fmaf.c1
-rw-r--r--sysdeps/ieee754/dbl-64/s_fpclassify.c1
-rw-r--r--sysdeps/ieee754/dbl-64/s_frexp.c1
-rw-r--r--sysdeps/ieee754/dbl-64/s_isinf.c2
-rw-r--r--sysdeps/ieee754/dbl-64/s_llrint.c1
-rw-r--r--sysdeps/ieee754/dbl-64/s_llround.c1
-rw-r--r--sysdeps/ieee754/dbl-64/s_logb.c1
-rw-r--r--sysdeps/ieee754/dbl-64/s_lrint.c1
-rw-r--r--sysdeps/ieee754/dbl-64/s_modf.c1
-rw-r--r--sysdeps/ieee754/dbl-64/s_nearbyint.c1
-rw-r--r--sysdeps/ieee754/dbl-64/s_remquo.c1
-rw-r--r--sysdeps/ieee754/dbl-64/s_round.c1
-rw-r--r--sysdeps/ieee754/dbl-64/s_signbit.c1
-rw-r--r--sysdeps/ieee754/dbl-64/s_sincos.c1
-rw-r--r--sysdeps/ieee754/dbl-64/s_trunc.c1
-rw-r--r--sysdeps/ieee754/dbl-64/sincostab.c1
-rw-r--r--sysdeps/ieee754/dbl-64/uasncs.h1
-rw-r--r--sysdeps/ieee754/dbl-64/uatan.tbl1
-rw-r--r--sysdeps/ieee754/dbl-64/urem.h1
-rw-r--r--sysdeps/ieee754/dbl-64/usncs.h1
-rw-r--r--sysdeps/ieee754/dbl-64/utan.h1
-rw-r--r--sysdeps/ieee754/dbl-64/utan.tbl1
39 files changed, 0 insertions, 41 deletions
diff --git a/sysdeps/ieee754/dbl-64/asincos.tbl b/sysdeps/ieee754/dbl-64/asincos.tbl
index 316d9ac77b..8b446890b4 100644
--- a/sysdeps/ieee754/dbl-64/asincos.tbl
+++ b/sysdeps/ieee754/dbl-64/asincos.tbl
@@ -1,6 +1,5 @@
 /*
  * IBM Accurate Mathematical Library
- * Written by International Business Machines Corp.
  * Copyright (C) 2001-2021 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/sysdeps/ieee754/dbl-64/atnat.h b/sysdeps/ieee754/dbl-64/atnat.h
index 2b12481f04..6f8f1de1fd 100644
--- a/sysdeps/ieee754/dbl-64/atnat.h
+++ b/sysdeps/ieee754/dbl-64/atnat.h
@@ -1,6 +1,5 @@
 /*
  * IBM Accurate Mathematical Library
- * Written by International Business Machines Corp.
  * Copyright (C) 2001-2021 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/sysdeps/ieee754/dbl-64/atnat2.h b/sysdeps/ieee754/dbl-64/atnat2.h
index f9f8debd55..6d1298c200 100644
--- a/sysdeps/ieee754/dbl-64/atnat2.h
+++ b/sysdeps/ieee754/dbl-64/atnat2.h
@@ -1,7 +1,6 @@
 
 /*
  * IBM Accurate Mathematical Library
- * Written by International Business Machines Corp.
  * Copyright (C) 2001-2021 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/sysdeps/ieee754/dbl-64/branred.c b/sysdeps/ieee754/dbl-64/branred.c
index 1450db3aab..77c80ec994 100644
--- a/sysdeps/ieee754/dbl-64/branred.c
+++ b/sysdeps/ieee754/dbl-64/branred.c
@@ -1,6 +1,5 @@
 /*
  * IBM Accurate Mathematical Library
- * Written by International Business Machines Corp.
  * Copyright (C) 2001-2021 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/sysdeps/ieee754/dbl-64/branred.h b/sysdeps/ieee754/dbl-64/branred.h
index b53714d7b5..09c9415460 100644
--- a/sysdeps/ieee754/dbl-64/branred.h
+++ b/sysdeps/ieee754/dbl-64/branred.h
@@ -1,6 +1,5 @@
 /*
  * IBM Accurate Mathematical Library
- * Written by International Business Machines Corp.
  * Copyright (C) 2001-2021 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/sysdeps/ieee754/dbl-64/dla.h b/sysdeps/ieee754/dbl-64/dla.h
index 37e96be931..a8d4bbf325 100644
--- a/sysdeps/ieee754/dbl-64/dla.h
+++ b/sysdeps/ieee754/dbl-64/dla.h
@@ -1,6 +1,5 @@
 /*
  * IBM Accurate Mathematical Library
- * Written by International Business Machines Corp.
  * Copyright (C) 2001-2021 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/sysdeps/ieee754/dbl-64/e_acosh.c b/sysdeps/ieee754/dbl-64/e_acosh.c
index a241366f30..bd35014300 100644
--- a/sysdeps/ieee754/dbl-64/e_acosh.c
+++ b/sysdeps/ieee754/dbl-64/e_acosh.c
@@ -1,4 +1,3 @@
-/* Optimized for 64-bit by Ulrich Drepper <drepper@gmail.com>, 2012 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
diff --git a/sysdeps/ieee754/dbl-64/e_atanh.c b/sysdeps/ieee754/dbl-64/e_atanh.c
index db1f69f953..6eea587a5f 100644
--- a/sysdeps/ieee754/dbl-64/e_atanh.c
+++ b/sysdeps/ieee754/dbl-64/e_atanh.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/ieee754/dbl-64/e_cosh.c b/sysdeps/ieee754/dbl-64/e_cosh.c
index 81de5ae6bd..1c92081676 100644
--- a/sysdeps/ieee754/dbl-64/e_cosh.c
+++ b/sysdeps/ieee754/dbl-64/e_cosh.c
@@ -1,4 +1,3 @@
-/* Optimized by Ulrich Drepper <drepper@gmail.com>, 2011 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
diff --git a/sysdeps/ieee754/dbl-64/e_fmod.c b/sysdeps/ieee754/dbl-64/e_fmod.c
index 52a8687448..60b8bbb9d2 100644
--- a/sysdeps/ieee754/dbl-64/e_fmod.c
+++ b/sysdeps/ieee754/dbl-64/e_fmod.c
@@ -1,4 +1,3 @@
-/* Rewritten for 64-bit machines by Ulrich Drepper <drepper@gmail.com>.  */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
diff --git a/sysdeps/ieee754/dbl-64/e_gamma_r.c b/sysdeps/ieee754/dbl-64/e_gamma_r.c
index eb36a9f464..93edb485dc 100644
--- a/sysdeps/ieee754/dbl-64/e_gamma_r.c
+++ b/sysdeps/ieee754/dbl-64/e_gamma_r.c
@@ -1,7 +1,6 @@
 /* Implementation of gamma function according to ISO C.
    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/ieee754/dbl-64/mydefs.h b/sysdeps/ieee754/dbl-64/mydefs.h
index a73c4de2c1..a47c89510a 100644
--- a/sysdeps/ieee754/dbl-64/mydefs.h
+++ b/sysdeps/ieee754/dbl-64/mydefs.h
@@ -1,6 +1,5 @@
 /*
  * IBM Accurate Mathematical Library
- * Written by International Business Machines Corp.
  * Copyright (C) 2001-2021 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/sysdeps/ieee754/dbl-64/powtwo.tbl b/sysdeps/ieee754/dbl-64/powtwo.tbl
index e395befb90..b5f3c32e44 100644
--- a/sysdeps/ieee754/dbl-64/powtwo.tbl
+++ b/sysdeps/ieee754/dbl-64/powtwo.tbl
@@ -1,6 +1,5 @@
 /*
  * IBM Accurate Mathematical Library
- * Written by International Business Machines Corp.
  * Copyright (C) 2001-2021 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/sysdeps/ieee754/dbl-64/root.tbl b/sysdeps/ieee754/dbl-64/root.tbl
index 950193ca81..77d42e6f21 100644
--- a/sysdeps/ieee754/dbl-64/root.tbl
+++ b/sysdeps/ieee754/dbl-64/root.tbl
@@ -1,6 +1,5 @@
 /*
  * IBM Accurate Mathematical Library
- * Written by International Business Machines Corp.
  * Copyright (C) 2001-2021 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/sysdeps/ieee754/dbl-64/s_cbrt.c b/sysdeps/ieee754/dbl-64/s_cbrt.c
index 8751a45363..a4c8fc5df9 100644
--- a/sysdeps/ieee754/dbl-64/s_cbrt.c
+++ b/sysdeps/ieee754/dbl-64/s_cbrt.c
@@ -1,8 +1,6 @@
 /* Compute cubic root of double value.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Dirk Alboth <dirka@uni-paderborn.de> and
-   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/ieee754/dbl-64/s_floor.c b/sysdeps/ieee754/dbl-64/s_floor.c
index 18d87bb598..efedceb3a7 100644
--- a/sysdeps/ieee754/dbl-64/s_floor.c
+++ b/sysdeps/ieee754/dbl-64/s_floor.c
@@ -1,7 +1,6 @@
 /* Round double to integer away from zero.
    Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.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/ieee754/dbl-64/s_fma.c b/sysdeps/ieee754/dbl-64/s_fma.c
index 4e0fe18b31..55ccf46c9a 100644
--- a/sysdeps/ieee754/dbl-64/s_fma.c
+++ b/sysdeps/ieee754/dbl-64/s_fma.c
@@ -1,7 +1,6 @@
 /* Compute x * y + z as ternary operation.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@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/ieee754/dbl-64/s_fmaf.c b/sysdeps/ieee754/dbl-64/s_fmaf.c
index 921c6f3b87..2b4da8b763 100644
--- a/sysdeps/ieee754/dbl-64/s_fmaf.c
+++ b/sysdeps/ieee754/dbl-64/s_fmaf.c
@@ -1,7 +1,6 @@
 /* Compute x * y + z as ternary operation.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@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/ieee754/dbl-64/s_fpclassify.c b/sysdeps/ieee754/dbl-64/s_fpclassify.c
index 000b679525..0bb9e2b0f0 100644
--- a/sysdeps/ieee754/dbl-64/s_fpclassify.c
+++ b/sysdeps/ieee754/dbl-64/s_fpclassify.c
@@ -1,7 +1,6 @@
 /* Return classification value corresponding to 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/ieee754/dbl-64/s_frexp.c b/sysdeps/ieee754/dbl-64/s_frexp.c
index f6ddf4aaee..900a64fe1e 100644
--- a/sysdeps/ieee754/dbl-64/s_frexp.c
+++ b/sysdeps/ieee754/dbl-64/s_frexp.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/ieee754/dbl-64/s_isinf.c b/sysdeps/ieee754/dbl-64/s_isinf.c
index e5300fd2a5..a34e0bc06c 100644
--- a/sysdeps/ieee754/dbl-64/s_isinf.c
+++ b/sysdeps/ieee754/dbl-64/s_isinf.c
@@ -1,6 +1,4 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
- * Changed to return -1 for -Inf by Ulrich Drepper <drepper@cygnus.com>.
  * Public domain.
  */
 
diff --git a/sysdeps/ieee754/dbl-64/s_llrint.c b/sysdeps/ieee754/dbl-64/s_llrint.c
index de2a4a9af7..aa4c7ceff6 100644
--- a/sysdeps/ieee754/dbl-64/s_llrint.c
+++ b/sysdeps/ieee754/dbl-64/s_llrint.c
@@ -2,7 +2,6 @@
    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/ieee754/dbl-64/s_llround.c b/sysdeps/ieee754/dbl-64/s_llround.c
index 7020fd0156..b4798581bd 100644
--- a/sysdeps/ieee754/dbl-64/s_llround.c
+++ b/sysdeps/ieee754/dbl-64/s_llround.c
@@ -1,7 +1,6 @@
 /* Round double value to long long int.
    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/ieee754/dbl-64/s_logb.c b/sysdeps/ieee754/dbl-64/s_logb.c
index 13bfb33a63..3a23540fe9 100644
--- a/sysdeps/ieee754/dbl-64/s_logb.c
+++ b/sysdeps/ieee754/dbl-64/s_logb.c
@@ -1,7 +1,6 @@
 /* Compute radix independent exponent.
    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/ieee754/dbl-64/s_lrint.c b/sysdeps/ieee754/dbl-64/s_lrint.c
index f54a93eb53..75722edea8 100644
--- a/sysdeps/ieee754/dbl-64/s_lrint.c
+++ b/sysdeps/ieee754/dbl-64/s_lrint.c
@@ -2,7 +2,6 @@
    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/ieee754/dbl-64/s_modf.c b/sysdeps/ieee754/dbl-64/s_modf.c
index 8d14e78ef0..0de2084caf 100644
--- a/sysdeps/ieee754/dbl-64/s_modf.c
+++ b/sysdeps/ieee754/dbl-64/s_modf.c
@@ -1,4 +1,3 @@
-/* Rewritten for 64-bit machines by Ulrich Drepper <drepper@gmail.com>.  */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
diff --git a/sysdeps/ieee754/dbl-64/s_nearbyint.c b/sysdeps/ieee754/dbl-64/s_nearbyint.c
index 2deaeb2568..08fe517b83 100644
--- a/sysdeps/ieee754/dbl-64/s_nearbyint.c
+++ b/sysdeps/ieee754/dbl-64/s_nearbyint.c
@@ -1,4 +1,3 @@
-/* Adapted for use as nearbyint by Ulrich Drepper <drepper@cygnus.com>.  */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
diff --git a/sysdeps/ieee754/dbl-64/s_remquo.c b/sysdeps/ieee754/dbl-64/s_remquo.c
index cbaa7f79a2..5b48d541cf 100644
--- a/sysdeps/ieee754/dbl-64/s_remquo.c
+++ b/sysdeps/ieee754/dbl-64/s_remquo.c
@@ -1,7 +1,6 @@
 /* Compute remainder and a congruent to the quotient.
    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/ieee754/dbl-64/s_round.c b/sysdeps/ieee754/dbl-64/s_round.c
index 907c8eb668..45818a397a 100644
--- a/sysdeps/ieee754/dbl-64/s_round.c
+++ b/sysdeps/ieee754/dbl-64/s_round.c
@@ -1,7 +1,6 @@
 /* Round double to integer away from zero.
    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/ieee754/dbl-64/s_signbit.c b/sysdeps/ieee754/dbl-64/s_signbit.c
index c9e02de129..03ce327a14 100644
--- a/sysdeps/ieee754/dbl-64/s_signbit.c
+++ b/sysdeps/ieee754/dbl-64/s_signbit.c
@@ -1,7 +1,6 @@
 /* Return nonzero value if number is negative.
    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/ieee754/dbl-64/s_sincos.c b/sysdeps/ieee754/dbl-64/s_sincos.c
index a4a521d742..ae17aab41f 100644
--- a/sysdeps/ieee754/dbl-64/s_sincos.c
+++ b/sysdeps/ieee754/dbl-64/s_sincos.c
@@ -1,7 +1,6 @@
 /* Compute sine and cosine of 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/ieee754/dbl-64/s_trunc.c b/sysdeps/ieee754/dbl-64/s_trunc.c
index 1df17d8c5f..e06ea33630 100644
--- a/sysdeps/ieee754/dbl-64/s_trunc.c
+++ b/sysdeps/ieee754/dbl-64/s_trunc.c
@@ -1,7 +1,6 @@
 /* Truncate argument to nearest integral value not larger than the 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/ieee754/dbl-64/sincostab.c b/sysdeps/ieee754/dbl-64/sincostab.c
index a6a5aecf44..084cd05e08 100644
--- a/sysdeps/ieee754/dbl-64/sincostab.c
+++ b/sysdeps/ieee754/dbl-64/sincostab.c
@@ -1,6 +1,5 @@
 /*
  * IBM Accurate Mathematical Library
- * Written by International Business Machines Corp.
  * Copyright (C) 2001-2021 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/sysdeps/ieee754/dbl-64/uasncs.h b/sysdeps/ieee754/dbl-64/uasncs.h
index a40c0b372b..0bab06a14f 100644
--- a/sysdeps/ieee754/dbl-64/uasncs.h
+++ b/sysdeps/ieee754/dbl-64/uasncs.h
@@ -1,6 +1,5 @@
 /*
  * IBM Accurate Mathematical Library
- * Written by International Business Machines Corp.
  * Copyright (C) 2001-2021 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/sysdeps/ieee754/dbl-64/uatan.tbl b/sysdeps/ieee754/dbl-64/uatan.tbl
index 8639292405..d2ea1d39d7 100644
--- a/sysdeps/ieee754/dbl-64/uatan.tbl
+++ b/sysdeps/ieee754/dbl-64/uatan.tbl
@@ -1,6 +1,5 @@
 /*
  * IBM Accurate Mathematical Library
- * Written by International Business Machines Corp.
  * Copyright (C) 2001-2021 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/sysdeps/ieee754/dbl-64/urem.h b/sysdeps/ieee754/dbl-64/urem.h
index b4036791ea..f87f101e97 100644
--- a/sysdeps/ieee754/dbl-64/urem.h
+++ b/sysdeps/ieee754/dbl-64/urem.h
@@ -1,6 +1,5 @@
 /*
  * IBM Accurate Mathematical Library
- * Written by International Business Machines Corp.
  * Copyright (C) 2001-2021 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/sysdeps/ieee754/dbl-64/usncs.h b/sysdeps/ieee754/dbl-64/usncs.h
index a545255149..d697d4e4e8 100644
--- a/sysdeps/ieee754/dbl-64/usncs.h
+++ b/sysdeps/ieee754/dbl-64/usncs.h
@@ -1,6 +1,5 @@
 /*
  * IBM Accurate Mathematical Library
- * Written by International Business Machines Corp.
  * Copyright (C) 2001-2021 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/sysdeps/ieee754/dbl-64/utan.h b/sysdeps/ieee754/dbl-64/utan.h
index 37e4be87b3..d3b2c9f206 100644
--- a/sysdeps/ieee754/dbl-64/utan.h
+++ b/sysdeps/ieee754/dbl-64/utan.h
@@ -1,6 +1,5 @@
 /*
  * IBM Accurate Mathematical Library
- * Written by International Business Machines Corp.
  * Copyright (C) 2001-2021 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/sysdeps/ieee754/dbl-64/utan.tbl b/sysdeps/ieee754/dbl-64/utan.tbl
index f05e67f488..e899772dfd 100644
--- a/sysdeps/ieee754/dbl-64/utan.tbl
+++ b/sysdeps/ieee754/dbl-64/utan.tbl
@@ -1,6 +1,5 @@
 /*
  * IBM Accurate Mathematical Library
- * Written by International Business Machines Corp.
  * Copyright (C) 2001-2021 Free Software Foundation, Inc.
  *
  * This program is free software; you can redistribute it and/or modify