diff --git a/LICENSES b/LICENSES
index cd04fb6e84..530893b1dc 100644
--- a/LICENSES
+++ b/LICENSES
@@ -389,26 +389,3 @@ Copyright 2001 by Stephen L. Moshier <moshier@na-net.ornl.gov>
  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, see
  <https://www.gnu.org/licenses/>.  */
-
-sysdeps/aarch64/chacha20-aarch64.S, sysdeps/x86_64/chacha20-amd64-sse2.S,
-sysdeps/x86_64/chacha20-amd64-avx2.S, and
-sysdeps/powerpc/powerpc64/power8/chacha20-ppc.c, and
-sysdeps/s390/s390-64/chacha20-s390x.S imports code from libgcrypt,
-with the following notices:
-
-Copyright (C) 2017-2019 Jussi Kivilinna <jussi.kivilinna@iki.fi>
-
-This file is part of Libgcrypt.
-
-Libgcrypt is free software; you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as
-published by the Free Software Foundation; either version 2.1 of
-the License, or (at your option) any later version.
-
-Libgcrypt is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public
-License along with this program; if not, see <https://www.gnu.org/licenses/>.
diff --git a/include/stdlib.h b/include/stdlib.h
index cae7f7cdf8..db51f4a4f6 100644
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -152,9 +152,6 @@ __typeof (arc4random_uniform) __arc4random_uniform;
 libc_hidden_proto (__arc4random_uniform);
 extern void __arc4random_buf_internal (void *buffer, size_t len)
      attribute_hidden;
-/* Called from the fork function to reinitialize the internal cipher state
-   in child process.  */
-extern void __arc4random_fork_subprocess (void) attribute_hidden;
 
 extern double __strtod_internal (const char *__restrict __nptr,
 				 char **__restrict __endptr, int __group)
diff --git a/stdlib/Makefile b/stdlib/Makefile
index a900962685..f7b25c1981 100644
--- a/stdlib/Makefile
+++ b/stdlib/Makefile
@@ -246,7 +246,6 @@ tests := \
   # tests
 
 tests-internal := \
-  tst-arc4random-chacha20 \
   tst-strtod1i \
   tst-strtod3 \
   tst-strtod4 \
@@ -256,7 +255,6 @@ tests-internal := \
   # tests-internal
 
 tests-static := \
-  tst-arc4random-chacha20 \
   tst-secure-getenv \
   # tests-static
 
diff --git a/stdlib/arc4random.c b/stdlib/arc4random.c
index 65547e79aa..80c55cde63 100644
--- a/stdlib/arc4random.c
+++ b/stdlib/arc4random.c
@@ -1,4 +1,4 @@
-/* Pseudo Random Number Generator based on ChaCha20.
+/* Pseudo Random Number Generator
    Copyright (C) 2022 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -16,61 +16,14 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-#include <arc4random.h>
 #include <errno.h>
 #include <not-cancel.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <sys/poll.h>
 #include <sys/mman.h>
 #include <sys/param.h>
 #include <sys/random.h>
-#include <tls-internal.h>
-
-/* arc4random keeps two counters: 'have' is the current valid bytes not yet
-   consumed in 'buf' while 'count' is the maximum number of bytes until a
-   reseed.
-
-   Both the initial seed and reseed try to obtain entropy from the kernel
-   and abort the process if none could be obtained.
-
-   The state 'buf' improves the usage of the cipher calls, allowing to call
-   optimized implementations (if the architecture provides it) and minimize
-   function call overhead.  */
-
-#include <chacha20.c>
-
-/* Called from the fork function to reset the state.  */
-void
-__arc4random_fork_subprocess (void)
-{
-  struct arc4random_state_t *state = __glibc_tls_internal ()->rand_state;
-  if (state != NULL)
-    {
-      explicit_bzero (state, sizeof (*state));
-      /* Force key init.  */
-      state->count = -1;
-    }
-}
-
-/* Return the current thread random state or try to create one if there is
-   none available.  In the case malloc can not allocate a state, arc4random
-   will try to get entropy with arc4random_getentropy.  */
-static struct arc4random_state_t *
-arc4random_get_state (void)
-{
-  struct arc4random_state_t *state = __glibc_tls_internal ()->rand_state;
-  if (state == NULL)
-    {
-      state = malloc (sizeof (struct arc4random_state_t));
-      if (state != NULL)
-	{
-	  /* Force key initialization on first call.  */
-	  state->count = -1;
-	  __glibc_tls_internal ()->rand_state = state;
-	}
-    }
-  return state;
-}
 
 static void
 arc4random_getrandom_failure (void)
@@ -78,106 +31,70 @@ arc4random_getrandom_failure (void)
   __libc_fatal ("Fatal glibc error: cannot get entropy for arc4random\n");
 }
 
-static void
-arc4random_rekey (struct arc4random_state_t *state, uint8_t *rnd, size_t rndlen)
+void
+__arc4random_buf (void *p, size_t n)
 {
-  chacha20_crypt (state->ctx, state->buf, state->buf, sizeof state->buf);
+  static bool have_getrandom = true, seen_initialized = false;
+  int fd;
 
-  /* Mix optional user provided data.  */
-  if (rnd != NULL)
-    {
-      size_t m = MIN (rndlen, CHACHA20_KEY_SIZE + CHACHA20_IV_SIZE);
-      for (size_t i = 0; i < m; i++)
-	state->buf[i] ^= rnd[i];
-    }
-
-  /* Immediately reinit for backtracking resistance.  */
-  chacha20_init (state->ctx, state->buf, state->buf + CHACHA20_KEY_SIZE);
-  explicit_bzero (state->buf, CHACHA20_KEY_SIZE + CHACHA20_IV_SIZE);
-  state->have = sizeof (state->buf) - (CHACHA20_KEY_SIZE + CHACHA20_IV_SIZE);
-}
-
-static void
-arc4random_getentropy (void *rnd, size_t len)
-{
-  if (__getrandom_nocancel (rnd, len, GRND_NONBLOCK) == len)
+  if (n == 0)
     return;
 
-  int fd = TEMP_FAILURE_RETRY (__open64_nocancel ("/dev/urandom",
-						  O_RDONLY | O_CLOEXEC));
-  if (fd != -1)
+  for (;;)
     {
-      uint8_t *p = rnd;
-      uint8_t *end = p + len;
-      do
-	{
-	  ssize_t ret = TEMP_FAILURE_RETRY (__read_nocancel (fd, p, end - p));
-	  if (ret <= 0)
-	    arc4random_getrandom_failure ();
-	  p += ret;
-	}
-      while (p < end);
+      ssize_t l;
 
-      if (__close_nocancel (fd) == 0)
-	return;
-    }
-  arc4random_getrandom_failure ();
-}
+      if (!have_getrandom)
+	break;
 
-/* Check if the thread context STATE should be reseed with kernel entropy
-   depending of requested LEN bytes.  If there is less than requested,
-   the state is either initialized or reseeded, otherwise the internal
-   counter subtract the requested length.  */
-static void
-arc4random_check_stir (struct arc4random_state_t *state, size_t len)
-{
-  if (state->count <= len || state->count == -1)
-    {
-      uint8_t rnd[CHACHA20_KEY_SIZE + CHACHA20_IV_SIZE];
-      arc4random_getentropy (rnd, sizeof rnd);
-
-      if (state->count == -1)
-	chacha20_init (state->ctx, rnd, rnd + CHACHA20_KEY_SIZE);
-      else
-	arc4random_rekey (state, rnd, sizeof rnd);
-
-      explicit_bzero (rnd, sizeof rnd);
-
-      /* Invalidate the buf.  */
-      state->have = 0;
-      memset (state->buf, 0, sizeof state->buf);
-      state->count = CHACHA20_RESEED_SIZE;
+      l = __getrandom_nocancel (p, n, 0);
+      if (l > 0)
+	{
+	  if ((size_t) l == n)
+	    return; /* Done reading, success. */
+	  p = (uint8_t *) p + l;
+	  n -= l;
+	  continue; /* Interrupted by a signal; keep going. */
+	}
+      else if (l == 0)
+	arc4random_getrandom_failure (); /* Weird, should never happen. */
+      else if (errno == ENOSYS)
+	{
+	  have_getrandom = false;
+	  break; /* No syscall, so fallback to /dev/urandom. */
+	}
+      arc4random_getrandom_failure (); /* Unknown error, should never happen. */
     }
-  else
-    state->count -= len;
-}
 
-void
-__arc4random_buf (void *buffer, size_t len)
-{
-  struct arc4random_state_t *state = arc4random_get_state ();
-  if (__glibc_unlikely (state == NULL))
+  if (!seen_initialized)
     {
-      arc4random_getentropy (buffer, len);
-      return;
+      struct pollfd pfd = { .events = POLLIN };
+      pfd.fd = TEMP_FAILURE_RETRY (
+	  __open64_nocancel ("/dev/random", O_RDONLY | O_CLOEXEC | O_NOCTTY));
+      if (pfd.fd < 0)
+	arc4random_getrandom_failure ();
+      if (__poll (&pfd, 1, -1) < 0)
+	arc4random_getrandom_failure ();
+      if (__close_nocancel (pfd.fd) < 0)
+	arc4random_getrandom_failure ();
+      seen_initialized = true;
     }
 
-  arc4random_check_stir (state, len);
-  while (len > 0)
+  fd = TEMP_FAILURE_RETRY (
+      __open64_nocancel ("/dev/urandom", O_RDONLY | O_CLOEXEC | O_NOCTTY));
+  if (fd < 0)
+    arc4random_getrandom_failure ();
+  do
     {
-      if (state->have > 0)
-	{
-	  size_t m = MIN (len, state->have);
-	  uint8_t *ks = state->buf + sizeof (state->buf) - state->have;
-	  memcpy (buffer, ks, m);
-	  explicit_bzero (ks, m);
-	  buffer += m;
-	  len -= m;
-	  state->have -= m;
-	}
-      if (state->have == 0)
-	arc4random_rekey (state, NULL, 0);
+      ssize_t l = TEMP_FAILURE_RETRY (__read_nocancel (fd, p, n));
+      if (l <= 0)
+	arc4random_getrandom_failure ();
+      p = (uint8_t *) p + l;
+      n -= l;
     }
+  while (n);
+  if (__close_nocancel (fd) < 0)
+    arc4random_getrandom_failure ();
 }
 libc_hidden_def (__arc4random_buf)
 weak_alias (__arc4random_buf, arc4random_buf)
@@ -186,22 +103,7 @@ uint32_t
 __arc4random (void)
 {
   uint32_t r;
-
-  struct arc4random_state_t *state = arc4random_get_state ();
-  if (__glibc_unlikely (state == NULL))
-    {
-      arc4random_getentropy (&r, sizeof (uint32_t));
-      return r;
-    }
-
-  arc4random_check_stir (state, sizeof (uint32_t));
-  if (state->have < sizeof (uint32_t))
-    arc4random_rekey (state, NULL, 0);
-  uint8_t *ks = state->buf + sizeof (state->buf) - state->have;
-  memcpy (&r, ks, sizeof (uint32_t));
-  memset (ks, 0, sizeof (uint32_t));
-  state->have -= sizeof (uint32_t);
-
+  __arc4random_buf (&r, sizeof (r));
   return r;
 }
 libc_hidden_def (__arc4random)
diff --git a/stdlib/arc4random.h b/stdlib/arc4random.h
deleted file mode 100644
index cd39389c19..0000000000
--- a/stdlib/arc4random.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/* Arc4random definition used on TLS.
-   Copyright (C) 2022 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   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 published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#ifndef _CHACHA20_H
-#define _CHACHA20_H
-
-#include <stddef.h>
-#include <stdint.h>
-
-/* Internal ChaCha20 state.  */
-#define CHACHA20_STATE_LEN	16
-#define CHACHA20_BLOCK_SIZE	64
-
-/* Maximum number bytes until reseed (16 MB).  */
-#define CHACHA20_RESEED_SIZE	(16 * 1024 * 1024)
-
-/* Internal arc4random buffer, used on each feedback step so offer some
-   backtracking protection and to allow better used of vectorized
-   chacha20 implementations.  */
-#define CHACHA20_BUFSIZE        (8 * CHACHA20_BLOCK_SIZE)
-
-_Static_assert (CHACHA20_BUFSIZE >= CHACHA20_BLOCK_SIZE + CHACHA20_BLOCK_SIZE,
-		"CHACHA20_BUFSIZE < CHACHA20_BLOCK_SIZE + CHACHA20_BLOCK_SIZE");
-
-struct arc4random_state_t
-{
-  uint32_t ctx[CHACHA20_STATE_LEN];
-  size_t have;
-  size_t count;
-  uint8_t buf[CHACHA20_BUFSIZE];
-};
-
-#endif
diff --git a/stdlib/chacha20.c b/stdlib/chacha20.c
deleted file mode 100644
index 2745a81315..0000000000
--- a/stdlib/chacha20.c
+++ /dev/null
@@ -1,191 +0,0 @@
-/* Generic ChaCha20 implementation (used on arc4random).
-   Copyright (C) 2022 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   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 published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#include <array_length.h>
-#include <endian.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <string.h>
-
-/* 32-bit stream position, then 96-bit nonce.  */
-#define CHACHA20_IV_SIZE	16
-#define CHACHA20_KEY_SIZE	32
-
-#define CHACHA20_STATE_LEN	16
-
-/* The ChaCha20 implementation is based on RFC8439 [1], omitting the final
-   XOR of the keystream with the plaintext because the plaintext is a
-   stream of zeros.  */
-
-enum chacha20_constants
-{
-  CHACHA20_CONSTANT_EXPA = 0x61707865U,
-  CHACHA20_CONSTANT_ND_3 = 0x3320646eU,
-  CHACHA20_CONSTANT_2_BY = 0x79622d32U,
-  CHACHA20_CONSTANT_TE_K = 0x6b206574U
-};
-
-static inline uint32_t
-read_unaligned_32 (const uint8_t *p)
-{
-  uint32_t r;
-  memcpy (&r, p, sizeof (r));
-  return r;
-}
-
-static inline void
-write_unaligned_32 (uint8_t *p, uint32_t v)
-{
-  memcpy (p, &v, sizeof (v));
-}
-
-#if __BYTE_ORDER == __BIG_ENDIAN
-# define read_unaligned_le32(p) __builtin_bswap32 (read_unaligned_32 (p))
-# define set_state(v)		__builtin_bswap32 ((v))
-#else
-# define read_unaligned_le32(p) read_unaligned_32 ((p))
-# define set_state(v)		(v)
-#endif
-
-static inline void
-chacha20_init (uint32_t *state, const uint8_t *key, const uint8_t *iv)
-{
-  state[0]  = CHACHA20_CONSTANT_EXPA;
-  state[1]  = CHACHA20_CONSTANT_ND_3;
-  state[2]  = CHACHA20_CONSTANT_2_BY;
-  state[3]  = CHACHA20_CONSTANT_TE_K;
-
-  state[4]  = read_unaligned_le32 (key + 0 * sizeof (uint32_t));
-  state[5]  = read_unaligned_le32 (key + 1 * sizeof (uint32_t));
-  state[6]  = read_unaligned_le32 (key + 2 * sizeof (uint32_t));
-  state[7]  = read_unaligned_le32 (key + 3 * sizeof (uint32_t));
-  state[8]  = read_unaligned_le32 (key + 4 * sizeof (uint32_t));
-  state[9]  = read_unaligned_le32 (key + 5 * sizeof (uint32_t));
-  state[10] = read_unaligned_le32 (key + 6 * sizeof (uint32_t));
-  state[11] = read_unaligned_le32 (key + 7 * sizeof (uint32_t));
-
-  state[12] = read_unaligned_le32 (iv + 0 * sizeof (uint32_t));
-  state[13] = read_unaligned_le32 (iv + 1 * sizeof (uint32_t));
-  state[14] = read_unaligned_le32 (iv + 2 * sizeof (uint32_t));
-  state[15] = read_unaligned_le32 (iv + 3 * sizeof (uint32_t));
-}
-
-static inline uint32_t
-rotl32 (unsigned int shift, uint32_t word)
-{
-  return (word << (shift & 31)) | (word >> ((-shift) & 31));
-}
-
-static void
-state_final (const uint8_t *src, uint8_t *dst, uint32_t v)
-{
-#ifdef CHACHA20_XOR_FINAL
-  v ^= read_unaligned_32 (src);
-#endif
-  write_unaligned_32 (dst, v);
-}
-
-static inline void
-chacha20_block (uint32_t *state, uint8_t *dst, const uint8_t *src)
-{
-  uint32_t x0, x1, x2, x3, x4, x5, x6, x7;
-  uint32_t x8, x9, x10, x11, x12, x13, x14, x15;
-
-  x0 = state[0];
-  x1 = state[1];
-  x2 = state[2];
-  x3 = state[3];
-  x4 = state[4];
-  x5 = state[5];
-  x6 = state[6];
-  x7 = state[7];
-  x8 = state[8];
-  x9 = state[9];
-  x10 = state[10];
-  x11 = state[11];
-  x12 = state[12];
-  x13 = state[13];
-  x14 = state[14];
-  x15 = state[15];
-
-  for (int i = 0; i < 20; i += 2)
-    {
-#define QROUND(_x0, _x1, _x2, _x3) 			\
-  do {							\
-   _x0 = _x0 + _x1; _x3 = rotl32 (16, (_x0 ^ _x3)); 	\
-   _x2 = _x2 + _x3; _x1 = rotl32 (12, (_x1 ^ _x2)); 	\
-   _x0 = _x0 + _x1; _x3 = rotl32 (8,  (_x0 ^ _x3));	\
-   _x2 = _x2 + _x3; _x1 = rotl32 (7,  (_x1 ^ _x2));	\
-  } while(0)
-
-      QROUND (x0, x4, x8,  x12);
-      QROUND (x1, x5, x9,  x13);
-      QROUND (x2, x6, x10, x14);
-      QROUND (x3, x7, x11, x15);
-
-      QROUND (x0, x5, x10, x15);
-      QROUND (x1, x6, x11, x12);
-      QROUND (x2, x7, x8,  x13);
-      QROUND (x3, x4, x9,  x14);
-    }
-
-  state_final (&src[0], &dst[0], set_state (x0 + state[0]));
-  state_final (&src[4], &dst[4], set_state (x1 + state[1]));
-  state_final (&src[8], &dst[8], set_state (x2 + state[2]));
-  state_final (&src[12], &dst[12], set_state (x3 + state[3]));
-  state_final (&src[16], &dst[16], set_state (x4 + state[4]));
-  state_final (&src[20], &dst[20], set_state (x5 + state[5]));
-  state_final (&src[24], &dst[24], set_state (x6 + state[6]));
-  state_final (&src[28], &dst[28], set_state (x7 + state[7]));
-  state_final (&src[32], &dst[32], set_state (x8 + state[8]));
-  state_final (&src[36], &dst[36], set_state (x9 + state[9]));
-  state_final (&src[40], &dst[40], set_state (x10 + state[10]));
-  state_final (&src[44], &dst[44], set_state (x11 + state[11]));
-  state_final (&src[48], &dst[48], set_state (x12 + state[12]));
-  state_final (&src[52], &dst[52], set_state (x13 + state[13]));
-  state_final (&src[56], &dst[56], set_state (x14 + state[14]));
-  state_final (&src[60], &dst[60], set_state (x15 + state[15]));
-
-  state[12]++;
-}
-
-static void
-__attribute_maybe_unused__
-chacha20_crypt_generic (uint32_t *state, uint8_t *dst, const uint8_t *src,
-			size_t bytes)
-{
-  while (bytes >= CHACHA20_BLOCK_SIZE)
-    {
-      chacha20_block (state, dst, src);
-
-      bytes -= CHACHA20_BLOCK_SIZE;
-      dst += CHACHA20_BLOCK_SIZE;
-      src += CHACHA20_BLOCK_SIZE;
-    }
-
-  if (__glibc_unlikely (bytes != 0))
-    {
-      uint8_t stream[CHACHA20_BLOCK_SIZE];
-      chacha20_block (state, stream, src);
-      memcpy (dst, stream, bytes);
-      explicit_bzero (stream, sizeof stream);
-    }
-}
-
-/* Get the architecture optimized version.  */
-#include <chacha20_arch.h>
diff --git a/stdlib/tst-arc4random-chacha20.c b/stdlib/tst-arc4random-chacha20.c
deleted file mode 100644
index 45ba54920d..0000000000
--- a/stdlib/tst-arc4random-chacha20.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/* Basic tests for chacha20 cypher used in arc4random.
-   Copyright (C) 2022 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   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 published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#include <arc4random.h>
-#include <support/check.h>
-#include <sys/cdefs.h>
-
-/* The test does not define CHACHA20_XOR_FINAL to mimic what arc4random
-   actual does.  */
-#include <chacha20.c>
-
-static int
-do_test (void)
-{
-  const uint8_t key[CHACHA20_KEY_SIZE] =
-    {
-      0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
-      0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
-      0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
-      0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
-    };
-  const uint8_t iv[CHACHA20_IV_SIZE] =
-    {
-      0x0, 0x0, 0x0, 0x0,
-      0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
-    };
-  const uint8_t expected1[CHACHA20_BUFSIZE] =
-    {
-      0x76, 0xb8, 0xe0, 0xad, 0xa0, 0xf1, 0x3d, 0x90, 0x40, 0x5d, 0x6a,
-      0xe5, 0x53, 0x86, 0xbd, 0x28, 0xbd, 0xd2, 0x19, 0xb8, 0xa0, 0x8d,
-      0xed, 0x1a, 0xa8, 0x36, 0xef, 0xcc, 0x8b, 0x77, 0x0d, 0xc7, 0xda,
-      0x41, 0x59, 0x7c, 0x51, 0x57, 0x48, 0x8d, 0x77, 0x24, 0xe0, 0x3f,
-      0xb8, 0xd8, 0x4a, 0x37, 0x6a, 0x43, 0xb8, 0xf4, 0x15, 0x18, 0xa1,
-      0x1c, 0xc3, 0x87, 0xb6, 0x69, 0xb2, 0xee, 0x65, 0x86, 0x9f, 0x07,
-      0xe7, 0xbe, 0x55, 0x51, 0x38, 0x7a, 0x98, 0xba, 0x97, 0x7c, 0x73,
-      0x2d, 0x08, 0x0d, 0xcb, 0x0f, 0x29, 0xa0, 0x48, 0xe3, 0x65, 0x69,
-      0x12, 0xc6, 0x53, 0x3e, 0x32, 0xee, 0x7a, 0xed, 0x29, 0xb7, 0x21,
-      0x76, 0x9c, 0xe6, 0x4e, 0x43, 0xd5, 0x71, 0x33, 0xb0, 0x74, 0xd8,
-      0x39, 0xd5, 0x31, 0xed, 0x1f, 0x28, 0x51, 0x0a, 0xfb, 0x45, 0xac,
-      0xe1, 0x0a, 0x1f, 0x4b, 0x79, 0x4d, 0x6f, 0x2d, 0x09, 0xa0, 0xe6,
-      0x63, 0x26, 0x6c, 0xe1, 0xae, 0x7e, 0xd1, 0x08, 0x19, 0x68, 0xa0,
-      0x75, 0x8e, 0x71, 0x8e, 0x99, 0x7b, 0xd3, 0x62, 0xc6, 0xb0, 0xc3,
-      0x46, 0x34, 0xa9, 0xa0, 0xb3, 0x5d, 0x01, 0x27, 0x37, 0x68, 0x1f,
-      0x7b, 0x5d, 0x0f, 0x28, 0x1e, 0x3a, 0xfd, 0xe4, 0x58, 0xbc, 0x1e,
-      0x73, 0xd2, 0xd3, 0x13, 0xc9, 0xcf, 0x94, 0xc0, 0x5f, 0xf3, 0x71,
-      0x62, 0x40, 0xa2, 0x48, 0xf2, 0x13, 0x20, 0xa0, 0x58, 0xd7, 0xb3,
-      0x56, 0x6b, 0xd5, 0x20, 0xda, 0xaa, 0x3e, 0xd2, 0xbf, 0x0a, 0xc5,
-      0xb8, 0xb1, 0x20, 0xfb, 0x85, 0x27, 0x73, 0xc3, 0x63, 0x97, 0x34,
-      0xb4, 0x5c, 0x91, 0xa4, 0x2d, 0xd4, 0xcb, 0x83, 0xf8, 0x84, 0x0d,
-      0x2e, 0xed, 0xb1, 0x58, 0x13, 0x10, 0x62, 0xac, 0x3f, 0x1f, 0x2c,
-      0xf8, 0xff, 0x6d, 0xcd, 0x18, 0x56, 0xe8, 0x6a, 0x1e, 0x6c, 0x31,
-      0x67, 0x16, 0x7e, 0xe5, 0xa6, 0x88, 0x74, 0x2b, 0x47, 0xc5, 0xad,
-      0xfb, 0x59, 0xd4, 0xdf, 0x76, 0xfd, 0x1d, 0xb1, 0xe5, 0x1e, 0xe0,
-      0x3b, 0x1c, 0xa9, 0xf8, 0x2a, 0xca, 0x17, 0x3e, 0xdb, 0x8b, 0x72,
-      0x93, 0x47, 0x4e, 0xbe, 0x98, 0x0f, 0x90, 0x4d, 0x10, 0xc9, 0x16,
-      0x44, 0x2b, 0x47, 0x83, 0xa0, 0xe9, 0x84, 0x86, 0x0c, 0xb6, 0xc9,
-      0x57, 0xb3, 0x9c, 0x38, 0xed, 0x8f, 0x51, 0xcf, 0xfa, 0xa6, 0x8a,
-      0x4d, 0xe0, 0x10, 0x25, 0xa3, 0x9c, 0x50, 0x45, 0x46, 0xb9, 0xdc,
-      0x14, 0x06, 0xa7, 0xeb, 0x28, 0x15, 0x1e, 0x51, 0x50, 0xd7, 0xb2,
-      0x04, 0xba, 0xa7, 0x19, 0xd4, 0xf0, 0x91, 0x02, 0x12, 0x17, 0xdb,
-      0x5c, 0xf1, 0xb5, 0xc8, 0x4c, 0x4f, 0xa7, 0x1a, 0x87, 0x96, 0x10,
-      0xa1, 0xa6, 0x95, 0xac, 0x52, 0x7c, 0x5b, 0x56, 0x77, 0x4a, 0x6b,
-      0x8a, 0x21, 0xaa, 0xe8, 0x86, 0x85, 0x86, 0x8e, 0x09, 0x4c, 0xf2,
-      0x9e, 0xf4, 0x09, 0x0a, 0xf7, 0xa9, 0x0c, 0xc0, 0x7e, 0x88, 0x17,
-      0xaa, 0x52, 0x87, 0x63, 0x79, 0x7d, 0x3c, 0x33, 0x2b, 0x67, 0xca,
-      0x4b, 0xc1, 0x10, 0x64, 0x2c, 0x21, 0x51, 0xec, 0x47, 0xee, 0x84,
-      0xcb, 0x8c, 0x42, 0xd8, 0x5f, 0x10, 0xe2, 0xa8, 0xcb, 0x18, 0xc3,
-      0xb7, 0x33, 0x5f, 0x26, 0xe8, 0xc3, 0x9a, 0x12, 0xb1, 0xbc, 0xc1,
-      0x70, 0x71, 0x77, 0xb7, 0x61, 0x38, 0x73, 0x2e, 0xed, 0xaa, 0xb7,
-      0x4d, 0xa1, 0x41, 0x0f, 0xc0, 0x55, 0xea, 0x06, 0x8c, 0x99, 0xe9,
-      0x26, 0x0a, 0xcb, 0xe3, 0x37, 0xcf, 0x5d, 0x3e, 0x00, 0xe5, 0xb3,
-      0x23, 0x0f, 0xfe, 0xdb, 0x0b, 0x99, 0x07, 0x87, 0xd0, 0xc7, 0x0e,
-      0x0b, 0xfe, 0x41, 0x98, 0xea, 0x67, 0x58, 0xdd, 0x5a, 0x61, 0xfb,
-      0x5f, 0xec, 0x2d, 0xf9, 0x81, 0xf3, 0x1b, 0xef, 0xe1, 0x53, 0xf8,
-      0x1d, 0x17, 0x16, 0x17, 0x84, 0xdb
-    };
-
-  const uint8_t expected2[CHACHA20_BUFSIZE] =
-    {
-      0x1c, 0x88, 0x22, 0xd5, 0x3c, 0xd1, 0xee, 0x7d, 0xb5, 0x32, 0x36,
-      0x48, 0x28, 0xbd, 0xf4, 0x04, 0xb0, 0x40, 0xa8, 0xdc, 0xc5, 0x22,
-      0xf3, 0xd3, 0xd9, 0x9a, 0xec, 0x4b, 0x80, 0x57, 0xed, 0xb8, 0x50,
-      0x09, 0x31, 0xa2, 0xc4, 0x2d, 0x2f, 0x0c, 0x57, 0x08, 0x47, 0x10,
-      0x0b, 0x57, 0x54, 0xda, 0xfc, 0x5f, 0xbd, 0xb8, 0x94, 0xbb, 0xef,
-      0x1a, 0x2d, 0xe1, 0xa0, 0x7f, 0x8b, 0xa0, 0xc4, 0xb9, 0x19, 0x30,
-      0x10, 0x66, 0xed, 0xbc, 0x05, 0x6b, 0x7b, 0x48, 0x1e, 0x7a, 0x0c,
-      0x46, 0x29, 0x7b, 0xbb, 0x58, 0x9d, 0x9d, 0xa5, 0xb6, 0x75, 0xa6,
-      0x72, 0x3e, 0x15, 0x2e, 0x5e, 0x63, 0xa4, 0xce, 0x03, 0x4e, 0x9e,
-      0x83, 0xe5, 0x8a, 0x01, 0x3a, 0xf0, 0xe7, 0x35, 0x2f, 0xb7, 0x90,
-      0x85, 0x14, 0xe3, 0xb3, 0xd1, 0x04, 0x0d, 0x0b, 0xb9, 0x63, 0xb3,
-      0x95, 0x4b, 0x63, 0x6b, 0x5f, 0xd4, 0xbf, 0x6d, 0x0a, 0xad, 0xba,
-      0xf8, 0x15, 0x7d, 0x06, 0x2a, 0xcb, 0x24, 0x18, 0xc1, 0x76, 0xa4,
-      0x75, 0x51, 0x1b, 0x35, 0xc3, 0xf6, 0x21, 0x8a, 0x56, 0x68, 0xea,
-      0x5b, 0xc6, 0xf5, 0x4b, 0x87, 0x82, 0xf8, 0xb3, 0x40, 0xf0, 0x0a,
-      0xc1, 0xbe, 0xba, 0x5e, 0x62, 0xcd, 0x63, 0x2a, 0x7c, 0xe7, 0x80,
-      0x9c, 0x72, 0x56, 0x08, 0xac, 0xa5, 0xef, 0xbf, 0x7c, 0x41, 0xf2,
-      0x37, 0x64, 0x3f, 0x06, 0xc0, 0x99, 0x72, 0x07, 0x17, 0x1d, 0xe8,
-      0x67, 0xf9, 0xd6, 0x97, 0xbf, 0x5e, 0xa6, 0x01, 0x1a, 0xbc, 0xce,
-      0x6c, 0x8c, 0xdb, 0x21, 0x13, 0x94, 0xd2, 0xc0, 0x2d, 0xd0, 0xfb,
-      0x60, 0xdb, 0x5a, 0x2c, 0x17, 0xac, 0x3d, 0xc8, 0x58, 0x78, 0xa9,
-      0x0b, 0xed, 0x38, 0x09, 0xdb, 0xb9, 0x6e, 0xaa, 0x54, 0x26, 0xfc,
-      0x8e, 0xae, 0x0d, 0x2d, 0x65, 0xc4, 0x2a, 0x47, 0x9f, 0x08, 0x86,
-      0x48, 0xbe, 0x2d, 0xc8, 0x01, 0xd8, 0x2a, 0x36, 0x6f, 0xdd, 0xc0,
-      0xef, 0x23, 0x42, 0x63, 0xc0, 0xb6, 0x41, 0x7d, 0x5f, 0x9d, 0xa4,
-      0x18, 0x17, 0xb8, 0x8d, 0x68, 0xe5, 0xe6, 0x71, 0x95, 0xc5, 0xc1,
-      0xee, 0x30, 0x95, 0xe8, 0x21, 0xf2, 0x25, 0x24, 0xb2, 0x0b, 0xe4,
-      0x1c, 0xeb, 0x59, 0x04, 0x12, 0xe4, 0x1d, 0xc6, 0x48, 0x84, 0x3f,
-      0xa9, 0xbf, 0xec, 0x7a, 0x3d, 0xcf, 0x61, 0xab, 0x05, 0x41, 0x57,
-      0x33, 0x16, 0xd3, 0xfa, 0x81, 0x51, 0x62, 0x93, 0x03, 0xfe, 0x97,
-      0x41, 0x56, 0x2e, 0xd0, 0x65, 0xdb, 0x4e, 0xbc, 0x00, 0x50, 0xef,
-      0x55, 0x83, 0x64, 0xae, 0x81, 0x12, 0x4a, 0x28, 0xf5, 0xc0, 0x13,
-      0x13, 0x23, 0x2f, 0xbc, 0x49, 0x6d, 0xfd, 0x8a, 0x25, 0x68, 0x65,
-      0x7b, 0x68, 0x6d, 0x72, 0x14, 0x38, 0x2a, 0x1a, 0x00, 0x90, 0x30,
-      0x17, 0xdd, 0xa9, 0x69, 0x87, 0x84, 0x42, 0xba, 0x5a, 0xff, 0xf6,
-      0x61, 0x3f, 0x55, 0x3c, 0xbb, 0x23, 0x3c, 0xe4, 0x6d, 0x9a, 0xee,
-      0x93, 0xa7, 0x87, 0x6c, 0xf5, 0xe9, 0xe8, 0x29, 0x12, 0xb1, 0x8c,
-      0xad, 0xf0, 0xb3, 0x43, 0x27, 0xb2, 0xe0, 0x42, 0x7e, 0xcf, 0x66,
-      0xb7, 0xce, 0xb7, 0xc0, 0x91, 0x8d, 0xc4, 0x7b, 0xdf, 0xf1, 0x2a,
-      0x06, 0x2a, 0xdf, 0x07, 0x13, 0x30, 0x09, 0xce, 0x7a, 0x5e, 0x5c,
-      0x91, 0x7e, 0x01, 0x68, 0x30, 0x61, 0x09, 0xb7, 0xcb, 0x49, 0x65,
-      0x3a, 0x6d, 0x2c, 0xae, 0xf0, 0x05, 0xde, 0x78, 0x3a, 0x9a, 0x9b,
-      0xfe, 0x05, 0x38, 0x1e, 0xd1, 0x34, 0x8d, 0x94, 0xec, 0x65, 0x88,
-      0x6f, 0x9c, 0x0b, 0x61, 0x9c, 0x52, 0xc5, 0x53, 0x38, 0x00, 0xb1,
-      0x6c, 0x83, 0x61, 0x72, 0xb9, 0x51, 0x82, 0xdb, 0xc5, 0xee, 0xc0,
-      0x42, 0xb8, 0x9e, 0x22, 0xf1, 0x1a, 0x08, 0x5b, 0x73, 0x9a, 0x36,
-      0x11, 0xcd, 0x8d, 0x83, 0x60, 0x18
-    };
-
-  /* Check with the expected internal arc4random keystream buffer.  Some
-     architecture optimizations expects a buffer with a minimum size which
-     is a multiple of then ChaCha20 blocksize, so they might not be prepared
-     to handle smaller buffers.  */
-
-  uint8_t output[CHACHA20_BUFSIZE];
-
-  uint32_t state[CHACHA20_STATE_LEN];
-  chacha20_init (state, key, iv);
-
-  /* Check with the initial state.  */
-  uint8_t input[CHACHA20_BUFSIZE] = { 0 };
-
-  chacha20_crypt (state, output, input, CHACHA20_BUFSIZE);
-  TEST_COMPARE_BLOB (output, sizeof output, expected1, CHACHA20_BUFSIZE);
-
-  /* And on the next round.  */
-  chacha20_crypt (state, output, input, CHACHA20_BUFSIZE);
-  TEST_COMPARE_BLOB (output, sizeof output, expected2, CHACHA20_BUFSIZE);
-
-  return 0;
-}
-
-#include <support/test-driver.c>
diff --git a/sysdeps/aarch64/Makefile b/sysdeps/aarch64/Makefile
index 7dfd1b62dd..17fb1c5b72 100644
--- a/sysdeps/aarch64/Makefile
+++ b/sysdeps/aarch64/Makefile
@@ -51,10 +51,6 @@ ifeq ($(subdir),csu)
 gen-as-const-headers += tlsdesc.sym
 endif
 
-ifeq ($(subdir),stdlib)
-sysdep_routines += chacha20-aarch64
-endif
-
 ifeq ($(subdir),gmon)
 CFLAGS-mcount.c += -mgeneral-regs-only
 endif
diff --git a/sysdeps/aarch64/chacha20-aarch64.S b/sysdeps/aarch64/chacha20-aarch64.S
deleted file mode 100644
index cce5291c5c..0000000000
--- a/sysdeps/aarch64/chacha20-aarch64.S
+++ /dev/null
@@ -1,314 +0,0 @@
-/* Optimized AArch64 implementation of ChaCha20 cipher.
-   Copyright (C) 2022 Free Software Foundation, Inc.
-
-   This file is part of the GNU C Library.
-
-   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 published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-/* Copyright (C) 2017-2019 Jussi Kivilinna <jussi.kivilinna@iki.fi>
-
-   This file is part of Libgcrypt.
-
-   Libgcrypt is free software; you can redistribute it and/or modify
-   it under the terms of the GNU Lesser General Public License as
-   published by the Free Software Foundation; either version 2.1 of
-   the License, or (at your option) any later version.
-
-   Libgcrypt is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with this program; if not, see <https://www.gnu.org/licenses/>.
- */
-
-/* Based on D. J. Bernstein reference implementation at
-   http://cr.yp.to/chacha.html:
-
-   chacha-regs.c version 20080118
-   D. J. Bernstein
-   Public domain.  */
-
-#include <sysdep.h>
-
-/* Only LE is supported.  */
-#ifdef __AARCH64EL__
-
-#define GET_DATA_POINTER(reg, name) \
-        adrp    reg, name ; \
-        add     reg, reg, :lo12:name
-
-/* 'ret' instruction replacement for straight-line speculation mitigation */
-#define ret_spec_stop \
-        ret; dsb sy; isb;
-
-.cpu generic+simd
-
-.text
-
-/* register macros */
-#define INPUT     x0
-#define DST       x1
-#define SRC       x2
-#define NBLKS     x3
-#define ROUND     x4
-#define INPUT_CTR x5
-#define INPUT_POS x6
-#define CTR       x7
-
-/* vector registers */
-#define X0 v16
-#define X4 v17
-#define X8 v18
-#define X12 v19
-
-#define X1 v20
-#define X5 v21
-
-#define X9 v22
-#define X13 v23
-#define X2 v24
-#define X6 v25
-
-#define X3 v26
-#define X7 v27
-#define X11 v28
-#define X15 v29
-
-#define X10 v30
-#define X14 v31
-
-#define VCTR    v0
-#define VTMP0   v1
-#define VTMP1   v2
-#define VTMP2   v3
-#define VTMP3   v4
-#define X12_TMP v5
-#define X13_TMP v6
-#define ROT8    v7
-
-/**********************************************************************
-  helper macros
- **********************************************************************/
-
-#define _(...) __VA_ARGS__
-
-#define vpunpckldq(s1, s2, dst) \
-	zip1 dst.4s, s2.4s, s1.4s;
-
-#define vpunpckhdq(s1, s2, dst) \
-	zip2 dst.4s, s2.4s, s1.4s;
-
-#define vpunpcklqdq(s1, s2, dst) \
-	zip1 dst.2d, s2.2d, s1.2d;
-
-#define vpunpckhqdq(s1, s2, dst) \
-	zip2 dst.2d, s2.2d, s1.2d;
-
-/* 4x4 32-bit integer matrix transpose */
-#define transpose_4x4(x0, x1, x2, x3, t1, t2, t3) \
-	vpunpckhdq(x1, x0, t2); \
-	vpunpckldq(x1, x0, x0); \
-	\
-	vpunpckldq(x3, x2, t1); \
-	vpunpckhdq(x3, x2, x2); \
-	\
-	vpunpckhqdq(t1, x0, x1); \
-	vpunpcklqdq(t1, x0, x0); \
-	\
-	vpunpckhqdq(x2, t2, x3); \
-	vpunpcklqdq(x2, t2, x2);
-
-/**********************************************************************
-  4-way chacha20
- **********************************************************************/
-
-#define XOR(d,s1,s2) \
-	eor d.16b, s2.16b, s1.16b;
-
-#define PLUS(ds,s) \
-	add ds.4s, ds.4s, s.4s;
-
-#define ROTATE4(dst1,dst2,dst3,dst4,c,src1,src2,src3,src4) \
-	shl dst1.4s, src1.4s, #(c);		\
-	shl dst2.4s, src2.4s, #(c);		\
-	shl dst3.4s, src3.4s, #(c);		\
-	shl dst4.4s, src4.4s, #(c);		\
-	sri dst1.4s, src1.4s, #(32 - (c));	\
-	sri dst2.4s, src2.4s, #(32 - (c));	\
-	sri dst3.4s, src3.4s, #(32 - (c));	\
-	sri dst4.4s, src4.4s, #(32 - (c));
-
-#define ROTATE4_8(dst1,dst2,dst3,dst4,src1,src2,src3,src4) \
-	tbl dst1.16b, {src1.16b}, ROT8.16b;     \
-	tbl dst2.16b, {src2.16b}, ROT8.16b;	\
-	tbl dst3.16b, {src3.16b}, ROT8.16b;	\
-	tbl dst4.16b, {src4.16b}, ROT8.16b;
-
-#define ROTATE4_16(dst1,dst2,dst3,dst4,src1,src2,src3,src4) \
-	rev32 dst1.8h, src1.8h;			\
-	rev32 dst2.8h, src2.8h;			\
-	rev32 dst3.8h, src3.8h;			\
-	rev32 dst4.8h, src4.8h;
-
-#define QUARTERROUND4(a1,b1,c1,d1,a2,b2,c2,d2,a3,b3,c3,d3,a4,b4,c4,d4,ign,tmp1,tmp2,tmp3,tmp4) \
-	PLUS(a1,b1); PLUS(a2,b2);						\
-	PLUS(a3,b3); PLUS(a4,b4);						\
-	    XOR(tmp1,d1,a1); XOR(tmp2,d2,a2);					\
-	    XOR(tmp3,d3,a3); XOR(tmp4,d4,a4);					\
-		ROTATE4_16(d1, d2, d3, d4, tmp1, tmp2, tmp3, tmp4);		\
-	PLUS(c1,d1); PLUS(c2,d2);						\
-	PLUS(c3,d3); PLUS(c4,d4);						\
-	    XOR(tmp1,b1,c1); XOR(tmp2,b2,c2);					\
-	    XOR(tmp3,b3,c3); XOR(tmp4,b4,c4);					\
-		ROTATE4(b1, b2, b3, b4, 12, tmp1, tmp2, tmp3, tmp4)		\
-	PLUS(a1,b1); PLUS(a2,b2);						\
-	PLUS(a3,b3); PLUS(a4,b4);						\
-	    XOR(tmp1,d1,a1); XOR(tmp2,d2,a2);					\
-	    XOR(tmp3,d3,a3); XOR(tmp4,d4,a4);					\
-		ROTATE4_8(d1, d2, d3, d4, tmp1, tmp2, tmp3, tmp4)		\
-	PLUS(c1,d1); PLUS(c2,d2);						\
-	PLUS(c3,d3); PLUS(c4,d4);						\
-	    XOR(tmp1,b1,c1); XOR(tmp2,b2,c2);					\
-	    XOR(tmp3,b3,c3); XOR(tmp4,b4,c4);					\
-		ROTATE4(b1, b2, b3, b4, 7, tmp1, tmp2, tmp3, tmp4)		\
-
-.align 4
-L(__chacha20_blocks4_data_inc_counter):
-	.long 0,1,2,3
-
-.align 4
-L(__chacha20_blocks4_data_rot8):
-	.byte 3,0,1,2
-	.byte 7,4,5,6
-	.byte 11,8,9,10
-	.byte 15,12,13,14
-
-.hidden __chacha20_neon_blocks4
-ENTRY (__chacha20_neon_blocks4)
-	/* input:
-	 *	x0: input
-	 *	x1: dst
-	 *	x2: src
-	 *	x3: nblks (multiple of 4)
-	 */
-
-	GET_DATA_POINTER(CTR, L(__chacha20_blocks4_data_rot8))
-	add INPUT_CTR, INPUT, #(12*4);
-	ld1 {ROT8.16b}, [CTR];
-	GET_DATA_POINTER(CTR, L(__chacha20_blocks4_data_inc_counter))
-	mov INPUT_POS, INPUT;
-	ld1 {VCTR.16b}, [CTR];
-
-L(loop4):
-	/* Construct counter vectors X12 and X13 */
-
-	ld1 {X15.16b}, [INPUT_CTR];
-	mov ROUND, #20;
-	ld1 {VTMP1.16b-VTMP3.16b}, [INPUT_POS];
-
-	dup X12.4s, X15.s[0];
-	dup X13.4s, X15.s[1];
-	ldr CTR, [INPUT_CTR];
-	add X12.4s, X12.4s, VCTR.4s;
-	dup X0.4s, VTMP1.s[0];
-	dup X1.4s, VTMP1.s[1];
-	dup X2.4s, VTMP1.s[2];
-	dup X3.4s, VTMP1.s[3];
-	dup X14.4s, X15.s[2];
-	cmhi VTMP0.4s, VCTR.4s, X12.4s;
-	dup X15.4s, X15.s[3];
-	add CTR, CTR, #4; /* Update counter */
-	dup X4.4s, VTMP2.s[0];
-	dup X5.4s, VTMP2.s[1];
-	dup X6.4s, VTMP2.s[2];
-	dup X7.4s, VTMP2.s[3];
-	sub X13.4s, X13.4s, VTMP0.4s;
-	dup X8.4s, VTMP3.s[0];
-	dup X9.4s, VTMP3.s[1];
-	dup X10.4s, VTMP3.s[2];
-	dup X11.4s, VTMP3.s[3];
-	mov X12_TMP.16b, X12.16b;
-	mov X13_TMP.16b, X13.16b;
-	str CTR, [INPUT_CTR];
-
-L(round2):
-	subs ROUND, ROUND, #2
-	QUARTERROUND4(X0, X4,  X8, X12,   X1, X5,  X9, X13,
-		      X2, X6, X10, X14,   X3, X7, X11, X15,
-		      tmp:=,VTMP0,VTMP1,VTMP2,VTMP3)
-	QUARTERROUND4(X0, X5, X10, X15,   X1, X6, X11, X12,
-		      X2, X7,  X8, X13,   X3, X4,  X9, X14,
-		      tmp:=,VTMP0,VTMP1,VTMP2,VTMP3)
-	b.ne L(round2);
-
-	ld1 {VTMP0.16b, VTMP1.16b}, [INPUT_POS], #32;
-
-	PLUS(X12, X12_TMP);        /* INPUT + 12 * 4 + counter */
-	PLUS(X13, X13_TMP);        /* INPUT + 13 * 4 + counter */
-
-	dup VTMP2.4s, VTMP0.s[0]; /* INPUT + 0 * 4 */
-	dup VTMP3.4s, VTMP0.s[1]; /* INPUT + 1 * 4 */
-	dup X12_TMP.4s, VTMP0.s[2]; /* INPUT + 2 * 4 */
-	dup X13_TMP.4s, VTMP0.s[3]; /* INPUT + 3 * 4 */
-	PLUS(X0, VTMP2);
-	PLUS(X1, VTMP3);
-	PLUS(X2, X12_TMP);
-	PLUS(X3, X13_TMP);
-
-	dup VTMP2.4s, VTMP1.s[0]; /* INPUT + 4 * 4 */
-	dup VTMP3.4s, VTMP1.s[1]; /* INPUT + 5 * 4 */
-	dup X12_TMP.4s, VTMP1.s[2]; /* INPUT + 6 * 4 */
-	dup X13_TMP.4s, VTMP1.s[3]; /* INPUT + 7 * 4 */
-	ld1 {VTMP0.16b, VTMP1.16b}, [INPUT_POS];
-	mov INPUT_POS, INPUT;
-	PLUS(X4, VTMP2);
-	PLUS(X5, VTMP3);
-	PLUS(X6, X12_TMP);
-	PLUS(X7, X13_TMP);
-
-	dup VTMP2.4s, VTMP0.s[0]; /* INPUT + 8 * 4 */
-	dup VTMP3.4s, VTMP0.s[1]; /* INPUT + 9 * 4 */
-	dup X12_TMP.4s, VTMP0.s[2]; /* INPUT + 10 * 4 */
-	dup X13_TMP.4s, VTMP0.s[3]; /* INPUT + 11 * 4 */
-	dup VTMP0.4s, VTMP1.s[2]; /* INPUT + 14 * 4 */
-	dup VTMP1.4s, VTMP1.s[3]; /* INPUT + 15 * 4 */
-	PLUS(X8, VTMP2);
-	PLUS(X9, VTMP3);
-	PLUS(X10, X12_TMP);
-	PLUS(X11, X13_TMP);
-	PLUS(X14, VTMP0);
-	PLUS(X15, VTMP1);
-
-	transpose_4x4(X0, X1, X2, X3, VTMP0, VTMP1, VTMP2);
-	transpose_4x4(X4, X5, X6, X7, VTMP0, VTMP1, VTMP2);
-	transpose_4x4(X8, X9, X10, X11, VTMP0, VTMP1, VTMP2);
-	transpose_4x4(X12, X13, X14, X15, VTMP0, VTMP1, VTMP2);
-
-	subs NBLKS, NBLKS, #4;
-
-	st1 {X0.16b,X4.16B,X8.16b, X12.16b}, [DST], #64
-	st1 {X1.16b,X5.16b}, [DST], #32;
-	st1 {X9.16b, X13.16b, X2.16b, X6.16b}, [DST], #64
-	st1 {X10.16b,X14.16b}, [DST], #32;
-	st1 {X3.16b, X7.16b, X11.16b, X15.16b}, [DST], #64;
-
-	b.ne L(loop4);
-
-	ret_spec_stop
-END (__chacha20_neon_blocks4)
-
-#endif
diff --git a/sysdeps/aarch64/chacha20_arch.h b/sysdeps/aarch64/chacha20_arch.h
deleted file mode 100644
index 37dbb917f1..0000000000
--- a/sysdeps/aarch64/chacha20_arch.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Chacha20 implementation, used on arc4random.
-   Copyright (C) 2022 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   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 published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#include <ldsodefs.h>
-#include <stdbool.h>
-
-unsigned int __chacha20_neon_blocks4 (uint32_t *state, uint8_t *dst,
-				      const uint8_t *src, size_t nblks)
-     attribute_hidden;
-
-static void
-chacha20_crypt (uint32_t *state, uint8_t *dst, const uint8_t *src,
-		size_t bytes)
-{
-  _Static_assert (CHACHA20_BUFSIZE % 4 == 0,
-		  "CHACHA20_BUFSIZE not multiple of 4");
-  _Static_assert (CHACHA20_BUFSIZE > CHACHA20_BLOCK_SIZE * 4,
-		  "CHACHA20_BUFSIZE <= CHACHA20_BLOCK_SIZE * 4");
-#ifdef __AARCH64EL__
-  __chacha20_neon_blocks4 (state, dst, src,
-			   CHACHA20_BUFSIZE / CHACHA20_BLOCK_SIZE);
-#else
-  chacha20_crypt_generic (state, dst, src, bytes);
-#endif
-}
diff --git a/sysdeps/generic/chacha20_arch.h b/sysdeps/generic/chacha20_arch.h
deleted file mode 100644
index 1b4559ccbc..0000000000
--- a/sysdeps/generic/chacha20_arch.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/* Chacha20 implementation, generic interface for encrypt.
-   Copyright (C) 2022 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   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 published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-static inline void
-chacha20_crypt (uint32_t *state, uint8_t *dst, const uint8_t *src,
-		size_t bytes)
-{
-  chacha20_crypt_generic (state, dst, src, bytes);
-}
diff --git a/sysdeps/generic/tls-internal.c b/sysdeps/generic/tls-internal.c
index 8a0f37d509..b32b31b5a9 100644
--- a/sysdeps/generic/tls-internal.c
+++ b/sysdeps/generic/tls-internal.c
@@ -16,7 +16,6 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-#include <stdlib/arc4random.h>
 #include <string.h>
 #include <tls-internal.h>
 
@@ -27,13 +26,4 @@ __glibc_tls_internal_free (void)
 {
   free (__tls_internal.strsignal_buf);
   free (__tls_internal.strerror_l_buf);
-
-  if (__tls_internal.rand_state != NULL)
-    {
-      /* Clear any lingering random state prior so if the thread stack is
-	 cached it won't leak any data.  */
-      explicit_bzero (__tls_internal.rand_state,
-		      sizeof (*__tls_internal.rand_state));
-      free (__tls_internal.rand_state);
-    }
 }
diff --git a/sysdeps/mach/hurd/_Fork.c b/sysdeps/mach/hurd/_Fork.c
index 667068c8cf..e60b86fab1 100644
--- a/sysdeps/mach/hurd/_Fork.c
+++ b/sysdeps/mach/hurd/_Fork.c
@@ -662,8 +662,6 @@ retry:
       _hurd_malloc_fork_child ();
       call_function_static_weak (__malloc_fork_unlock_child);
 
-      call_function_static_weak (__arc4random_fork_subprocess);
-
       /* Run things that want to run in the child task to set up.  */
       RUN_HOOK (_hurd_fork_child_hook, ());
 
diff --git a/sysdeps/nptl/_Fork.c b/sysdeps/nptl/_Fork.c
index 7dc02569f6..dd568992e2 100644
--- a/sysdeps/nptl/_Fork.c
+++ b/sysdeps/nptl/_Fork.c
@@ -43,8 +43,6 @@ _Fork (void)
       self->robust_head.list = &self->robust_head;
       INTERNAL_SYSCALL_CALL (set_robust_list, &self->robust_head,
 			     sizeof (struct robust_list_head));
-
-      call_function_static_weak (__arc4random_fork_subprocess);
     }
   return pid;
 }
diff --git a/sysdeps/powerpc/powerpc64/be/multiarch/Makefile b/sysdeps/powerpc/powerpc64/be/multiarch/Makefile
deleted file mode 100644
index 8c75165f7f..0000000000
--- a/sysdeps/powerpc/powerpc64/be/multiarch/Makefile
+++ /dev/null
@@ -1,4 +0,0 @@
-ifeq ($(subdir),stdlib)
-sysdep_routines += chacha20-ppc
-CFLAGS-chacha20-ppc.c += -mcpu=power8
-endif
diff --git a/sysdeps/powerpc/powerpc64/be/multiarch/chacha20-ppc.c b/sysdeps/powerpc/powerpc64/be/multiarch/chacha20-ppc.c
deleted file mode 100644
index cf9e735326..0000000000
--- a/sysdeps/powerpc/powerpc64/be/multiarch/chacha20-ppc.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/powerpc/powerpc64/power8/chacha20-ppc.c>
diff --git a/sysdeps/powerpc/powerpc64/be/multiarch/chacha20_arch.h b/sysdeps/powerpc/powerpc64/be/multiarch/chacha20_arch.h
deleted file mode 100644
index 08494dc045..0000000000
--- a/sysdeps/powerpc/powerpc64/be/multiarch/chacha20_arch.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/* PowerPC optimization for ChaCha20.
-   Copyright (C) 2022 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   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 published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#include <stdbool.h>
-#include <ldsodefs.h>
-
-unsigned int __chacha20_power8_blocks4 (uint32_t *state, uint8_t *dst,
-					const uint8_t *src, size_t nblks)
-     attribute_hidden;
-
-static void
-chacha20_crypt (uint32_t *state, uint8_t *dst,
-		const uint8_t *src, size_t bytes)
-{
-  _Static_assert (CHACHA20_BUFSIZE % 4 == 0,
-		  "CHACHA20_BUFSIZE not multiple of 4");
-  _Static_assert (CHACHA20_BUFSIZE >= CHACHA20_BLOCK_SIZE * 4,
-		  "CHACHA20_BUFSIZE < CHACHA20_BLOCK_SIZE * 4");
-
-  unsigned long int hwcap = GLRO(dl_hwcap);
-  unsigned long int hwcap2 = GLRO(dl_hwcap2);
-  if (hwcap2 & PPC_FEATURE2_ARCH_2_07 && hwcap & PPC_FEATURE_HAS_ALTIVEC)
-    __chacha20_power8_blocks4 (state, dst, src,
-			       CHACHA20_BUFSIZE / CHACHA20_BLOCK_SIZE);
-  else
-    chacha20_crypt_generic (state, dst, src, bytes);
-}
diff --git a/sysdeps/powerpc/powerpc64/power8/Makefile b/sysdeps/powerpc/powerpc64/power8/Makefile
index abb0aa3f11..71a59529f3 100644
--- a/sysdeps/powerpc/powerpc64/power8/Makefile
+++ b/sysdeps/powerpc/powerpc64/power8/Makefile
@@ -1,8 +1,3 @@
 ifeq ($(subdir),string)
 sysdep_routines += strcasestr-ppc64
 endif
-
-ifeq ($(subdir),stdlib)
-sysdep_routines += chacha20-ppc
-CFLAGS-chacha20-ppc.c += -mcpu=power8
-endif
diff --git a/sysdeps/powerpc/powerpc64/power8/chacha20-ppc.c b/sysdeps/powerpc/powerpc64/power8/chacha20-ppc.c
deleted file mode 100644
index 0bbdcb9363..0000000000
--- a/sysdeps/powerpc/powerpc64/power8/chacha20-ppc.c
+++ /dev/null
@@ -1,256 +0,0 @@
-/* Optimized PowerPC implementation of ChaCha20 cipher.
-   Copyright (C) 2022 Free Software Foundation, Inc.
-
-   This file is part of the GNU C Library.
-
-   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 published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-/* chacha20-ppc.c - PowerPC vector implementation of ChaCha20
-   Copyright (C) 2019 Jussi Kivilinna <jussi.kivilinna@iki.fi>
-
-   This file is part of Libgcrypt.
-
-   Libgcrypt is free software; you can redistribute it and/or modify
-   it under the terms of the GNU Lesser General Public License as
-   published by the Free Software Foundation; either version 2.1 of
-   the License, or (at your option) any later version.
-
-   Libgcrypt is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with this program; if not, see <https://www.gnu.org/licenses/>.
- */
-
-#include <altivec.h>
-#include <endian.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <sys/cdefs.h>
-
-typedef vector unsigned char vector16x_u8;
-typedef vector unsigned int vector4x_u32;
-typedef vector unsigned long long vector2x_u64;
-
-#if __BYTE_ORDER == __BIG_ENDIAN
-static const vector16x_u8 le_bswap_const =
-  { 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12 };
-#endif
-
-static inline vector4x_u32
-vec_rol_elems (vector4x_u32 v, unsigned int idx)
-{
-#if __BYTE_ORDER != __BIG_ENDIAN
-  return vec_sld (v, v, (16 - (4 * idx)) & 15);
-#else
-  return vec_sld (v, v, (4 * idx) & 15);
-#endif
-}
-
-static inline vector4x_u32
-vec_load_le (unsigned long offset, const unsigned char *ptr)
-{
-  vector4x_u32 vec;
-  vec = vec_vsx_ld (offset, (const uint32_t *)ptr);
-#if __BYTE_ORDER == __BIG_ENDIAN
-  vec = (vector4x_u32) vec_perm ((vector16x_u8)vec, (vector16x_u8)vec,
-				 le_bswap_const);
-#endif
-  return vec;
-}
-
-static inline void
-vec_store_le (vector4x_u32 vec, unsigned long offset, unsigned char *ptr)
-{
-#if __BYTE_ORDER == __BIG_ENDIAN
-  vec = (vector4x_u32)vec_perm((vector16x_u8)vec, (vector16x_u8)vec,
-			       le_bswap_const);
-#endif
-  vec_vsx_st (vec, offset, (uint32_t *)ptr);
-}
-
-
-static inline vector4x_u32
-vec_add_ctr_u64 (vector4x_u32 v, vector4x_u32 a)
-{
-#if __BYTE_ORDER == __BIG_ENDIAN
-  static const vector16x_u8 swap32 =
-    { 4, 5, 6, 7, 0, 1, 2, 3, 12, 13, 14, 15, 8, 9, 10, 11 };
-  vector2x_u64 vec, add, sum;
-
-  vec = (vector2x_u64)vec_perm ((vector16x_u8)v, (vector16x_u8)v, swap32);
-  add = (vector2x_u64)vec_perm ((vector16x_u8)a, (vector16x_u8)a, swap32);
-  sum = vec + add;
-  return (vector4x_u32)vec_perm ((vector16x_u8)sum, (vector16x_u8)sum, swap32);
-#else
-  return (vector4x_u32)((vector2x_u64)(v) + (vector2x_u64)(a));
-#endif
-}
-
-/**********************************************************************
-  4-way chacha20
- **********************************************************************/
-
-#define ROTATE(v1,rolv)			\
-	__asm__ ("vrlw %0,%1,%2\n\t" : "=v" (v1) : "v" (v1), "v" (rolv))
-
-#define PLUS(ds,s) \
-	((ds) += (s))
-
-#define XOR(ds,s) \
-	((ds) ^= (s))
-
-#define ADD_U64(v,a) \
-	(v = vec_add_ctr_u64(v, a))
-
-/* 4x4 32-bit integer matrix transpose */
-#define transpose_4x4(x0, x1, x2, x3) ({ \
-	vector4x_u32 t1 = vec_mergeh(x0, x2); \
-	vector4x_u32 t2 = vec_mergel(x0, x2); \
-	vector4x_u32 t3 = vec_mergeh(x1, x3); \
-	x3 = vec_mergel(x1, x3); \
-	x0 = vec_mergeh(t1, t3); \
-	x1 = vec_mergel(t1, t3); \
-	x2 = vec_mergeh(t2, x3); \
-	x3 = vec_mergel(t2, x3); \
-      })
-
-#define QUARTERROUND2(a1,b1,c1,d1,a2,b2,c2,d2)			\
-	PLUS(a1,b1); PLUS(a2,b2); XOR(d1,a1); XOR(d2,a2);	\
-	    ROTATE(d1, rotate_16); ROTATE(d2, rotate_16);	\
-	PLUS(c1,d1); PLUS(c2,d2); XOR(b1,c1); XOR(b2,c2);	\
-	    ROTATE(b1, rotate_12); ROTATE(b2, rotate_12);	\
-	PLUS(a1,b1); PLUS(a2,b2); XOR(d1,a1); XOR(d2,a2);	\
-	    ROTATE(d1, rotate_8); ROTATE(d2, rotate_8);		\
-	PLUS(c1,d1); PLUS(c2,d2); XOR(b1,c1); XOR(b2,c2);	\
-	    ROTATE(b1, rotate_7); ROTATE(b2, rotate_7);
-
-unsigned int attribute_hidden
-__chacha20_power8_blocks4 (uint32_t *state, uint8_t *dst, const uint8_t *src,
-			   size_t nblks)
-{
-  vector4x_u32 counters_0123 = { 0, 1, 2, 3 };
-  vector4x_u32 counter_4 = { 4, 0, 0, 0 };
-  vector4x_u32 rotate_16 = { 16, 16, 16, 16 };
-  vector4x_u32 rotate_12 = { 12, 12, 12, 12 };
-  vector4x_u32 rotate_8 = { 8, 8, 8, 8 };
-  vector4x_u32 rotate_7 = { 7, 7, 7, 7 };
-  vector4x_u32 state0, state1, state2, state3;
-  vector4x_u32 v0, v1, v2, v3, v4, v5, v6, v7;
-  vector4x_u32 v8, v9, v10, v11, v12, v13, v14, v15;
-  vector4x_u32 tmp;
-  int i;
-
-  /* Force preload of constants to vector registers.  */
-  __asm__ ("": "+v" (counters_0123) :: "memory");
-  __asm__ ("": "+v" (counter_4) :: "memory");
-  __asm__ ("": "+v" (rotate_16) :: "memory");
-  __asm__ ("": "+v" (rotate_12) :: "memory");
-  __asm__ ("": "+v" (rotate_8) :: "memory");
-  __asm__ ("": "+v" (rotate_7) :: "memory");
-
-  state0 = vec_vsx_ld (0 * 16, state);
-  state1 = vec_vsx_ld (1 * 16, state);
-  state2 = vec_vsx_ld (2 * 16, state);
-  state3 = vec_vsx_ld (3 * 16, state);
-
-  do
-    {
-      v0 = vec_splat (state0, 0);
-      v1 = vec_splat (state0, 1);
-      v2 = vec_splat (state0, 2);
-      v3 = vec_splat (state0, 3);
-      v4 = vec_splat (state1, 0);
-      v5 = vec_splat (state1, 1);
-      v6 = vec_splat (state1, 2);
-      v7 = vec_splat (state1, 3);
-      v8 = vec_splat (state2, 0);
-      v9 = vec_splat (state2, 1);
-      v10 = vec_splat (state2, 2);
-      v11 = vec_splat (state2, 3);
-      v12 = vec_splat (state3, 0);
-      v13 = vec_splat (state3, 1);
-      v14 = vec_splat (state3, 2);
-      v15 = vec_splat (state3, 3);
-
-      v12 += counters_0123;
-      v13 -= vec_cmplt (v12, counters_0123);
-
-      for (i = 20; i > 0; i -= 2)
-	{
-	  QUARTERROUND2 (v0, v4,  v8, v12,   v1, v5,  v9, v13)
-	  QUARTERROUND2 (v2, v6, v10, v14,   v3, v7, v11, v15)
-	  QUARTERROUND2 (v0, v5, v10, v15,   v1, v6, v11, v12)
-	  QUARTERROUND2 (v2, v7,  v8, v13,   v3, v4,  v9, v14)
-	}
-
-      v0 += vec_splat (state0, 0);
-      v1 += vec_splat (state0, 1);
-      v2 += vec_splat (state0, 2);
-      v3 += vec_splat (state0, 3);
-      v4 += vec_splat (state1, 0);
-      v5 += vec_splat (state1, 1);
-      v6 += vec_splat (state1, 2);
-      v7 += vec_splat (state1, 3);
-      v8 += vec_splat (state2, 0);
-      v9 += vec_splat (state2, 1);
-      v10 += vec_splat (state2, 2);
-      v11 += vec_splat (state2, 3);
-      tmp = vec_splat( state3, 0);
-      tmp += counters_0123;
-      v12 += tmp;
-      v13 += vec_splat (state3, 1) - vec_cmplt (tmp, counters_0123);
-      v14 += vec_splat (state3, 2);
-      v15 += vec_splat (state3, 3);
-      ADD_U64 (state3, counter_4);
-
-      transpose_4x4 (v0, v1, v2, v3);
-      transpose_4x4 (v4, v5, v6, v7);
-      transpose_4x4 (v8, v9, v10, v11);
-      transpose_4x4 (v12, v13, v14, v15);
-
-      vec_store_le (v0, (64 * 0 + 16 * 0), dst);
-      vec_store_le (v1, (64 * 1 + 16 * 0), dst);
-      vec_store_le (v2, (64 * 2 + 16 * 0), dst);
-      vec_store_le (v3, (64 * 3 + 16 * 0), dst);
-
-      vec_store_le (v4, (64 * 0 + 16 * 1), dst);
-      vec_store_le (v5, (64 * 1 + 16 * 1), dst);
-      vec_store_le (v6, (64 * 2 + 16 * 1), dst);
-      vec_store_le (v7, (64 * 3 + 16 * 1), dst);
-
-      vec_store_le (v8, (64 * 0 + 16 * 2), dst);
-      vec_store_le (v9, (64 * 1 + 16 * 2), dst);
-      vec_store_le (v10, (64 * 2 + 16 * 2), dst);
-      vec_store_le (v11, (64 * 3 + 16 * 2), dst);
-
-      vec_store_le (v12, (64 * 0 + 16 * 3), dst);
-      vec_store_le (v13, (64 * 1 + 16 * 3), dst);
-      vec_store_le (v14, (64 * 2 + 16 * 3), dst);
-      vec_store_le (v15, (64 * 3 + 16 * 3), dst);
-
-      src += 4*64;
-      dst += 4*64;
-
-      nblks -= 4;
-    }
-  while (nblks);
-
-  vec_vsx_st (state3, 3 * 16, state);
-
-  return 0;
-}
diff --git a/sysdeps/powerpc/powerpc64/power8/chacha20_arch.h b/sysdeps/powerpc/powerpc64/power8/chacha20_arch.h
deleted file mode 100644
index ded06762b6..0000000000
--- a/sysdeps/powerpc/powerpc64/power8/chacha20_arch.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/* PowerPC optimization for ChaCha20.
-   Copyright (C) 2022 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   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 published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#include <stdbool.h>
-#include <ldsodefs.h>
-
-unsigned int __chacha20_power8_blocks4 (uint32_t *state, uint8_t *dst,
-					const uint8_t *src, size_t nblks)
-     attribute_hidden;
-
-static void
-chacha20_crypt (uint32_t *state, uint8_t *dst,
-		const uint8_t *src, size_t bytes)
-{
-  _Static_assert (CHACHA20_BUFSIZE % 4 == 0,
-		  "CHACHA20_BUFSIZE not multiple of 4");
-  _Static_assert (CHACHA20_BUFSIZE >= CHACHA20_BLOCK_SIZE * 4,
-		  "CHACHA20_BUFSIZE < CHACHA20_BLOCK_SIZE * 4");
-
-  __chacha20_power8_blocks4 (state, dst, src,
-			     CHACHA20_BUFSIZE / CHACHA20_BLOCK_SIZE);
-}
diff --git a/sysdeps/s390/s390-64/Makefile b/sysdeps/s390/s390-64/Makefile
index 96c110f490..66ed844e68 100644
--- a/sysdeps/s390/s390-64/Makefile
+++ b/sysdeps/s390/s390-64/Makefile
@@ -67,9 +67,3 @@ tests-container += tst-glibc-hwcaps-cache
 endif
 
 endif # $(subdir) == elf
-
-ifeq ($(subdir),stdlib)
-sysdep_routines += \
-  chacha20-s390x \
-  # sysdep_routines
-endif
diff --git a/sysdeps/s390/s390-64/chacha20-s390x.S b/sysdeps/s390/s390-64/chacha20-s390x.S
deleted file mode 100644
index e38504d370..0000000000
--- a/sysdeps/s390/s390-64/chacha20-s390x.S
+++ /dev/null
@@ -1,573 +0,0 @@
-/* Optimized s390x implementation of ChaCha20 cipher.
-   Copyright (C) 2022 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   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 published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-/* chacha20-s390x.S  -  zSeries implementation of ChaCha20 cipher
-
-   Copyright (C) 2020 Jussi Kivilinna <jussi.kivilinna@iki.fi>
-
-   This file is part of Libgcrypt.
-
-   Libgcrypt is free software; you can redistribute it and/or modify
-   it under the terms of the GNU Lesser General Public License as
-   published by the Free Software Foundation; either version 2.1 of
-   the License, or (at your option) any later version.
-
-   Libgcrypt is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with this program; if not, see <https://www.gnu.org/licenses/>.
- */
-
-#include <sysdep.h>
-
-#ifdef HAVE_S390_VX_ASM_SUPPORT
-
-/* CFA expressions are used for pointing CFA and registers to
- * SP relative offsets. */
-# define DW_REGNO_SP 15
-
-/* Fixed length encoding used for integers for now. */
-# define DW_SLEB128_7BIT(value) \
-        0x00|((value) & 0x7f)
-# define DW_SLEB128_28BIT(value) \
-        0x80|((value)&0x7f), \
-        0x80|(((value)>>7)&0x7f), \
-        0x80|(((value)>>14)&0x7f), \
-        0x00|(((value)>>21)&0x7f)
-
-# define cfi_cfa_on_stack(rsp_offs,cfa_depth) \
-        .cfi_escape \
-          0x0f, /* DW_CFA_def_cfa_expression */ \
-            DW_SLEB128_7BIT(11), /* length */ \
-          0x7f, /* DW_OP_breg15, rsp + constant */ \
-            DW_SLEB128_28BIT(rsp_offs), \
-          0x06, /* DW_OP_deref */ \
-          0x23, /* DW_OP_plus_constu */ \
-            DW_SLEB128_28BIT((cfa_depth)+160)
-
-.machine "z13+vx"
-.text
-
-.balign 16
-.Lconsts:
-.Lwordswap:
-	.byte 12, 13, 14, 15, 8, 9, 10, 11, 4, 5, 6, 7, 0, 1, 2, 3
-.Lbswap128:
-	.byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
-.Lbswap32:
-	.byte 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12
-.Lone:
-	.long 0, 0, 0, 1
-.Ladd_counter_0123:
-	.long 0, 1, 2, 3
-.Ladd_counter_4567:
-	.long 4, 5, 6, 7
-
-/* register macros */
-#define INPUT %r2
-#define DST   %r3
-#define SRC   %r4
-#define NBLKS %r0
-#define ROUND %r1
-
-/* stack structure */
-
-#define STACK_FRAME_STD    (8 * 16 + 8 * 4)
-#define STACK_FRAME_F8_F15 (8 * 8)
-#define STACK_FRAME_Y0_Y15 (16 * 16)
-#define STACK_FRAME_CTR    (4 * 16)
-#define STACK_FRAME_PARAMS (6 * 8)
-
-#define STACK_MAX   (STACK_FRAME_STD + STACK_FRAME_F8_F15 + \
-		     STACK_FRAME_Y0_Y15 + STACK_FRAME_CTR + \
-		     STACK_FRAME_PARAMS)
-
-#define STACK_F8     (STACK_MAX - STACK_FRAME_F8_F15)
-#define STACK_F9     (STACK_F8 + 8)
-#define STACK_F10    (STACK_F9 + 8)
-#define STACK_F11    (STACK_F10 + 8)
-#define STACK_F12    (STACK_F11 + 8)
-#define STACK_F13    (STACK_F12 + 8)
-#define STACK_F14    (STACK_F13 + 8)
-#define STACK_F15    (STACK_F14 + 8)
-#define STACK_Y0_Y15 (STACK_F8 - STACK_FRAME_Y0_Y15)
-#define STACK_CTR    (STACK_Y0_Y15 - STACK_FRAME_CTR)
-#define STACK_INPUT  (STACK_CTR - STACK_FRAME_PARAMS)
-#define STACK_DST    (STACK_INPUT + 8)
-#define STACK_SRC    (STACK_DST + 8)
-#define STACK_NBLKS  (STACK_SRC + 8)
-#define STACK_POCTX  (STACK_NBLKS + 8)
-#define STACK_POSRC  (STACK_POCTX + 8)
-
-#define STACK_G0_H3  STACK_Y0_Y15
-
-/* vector registers */
-#define A0 %v0
-#define A1 %v1
-#define A2 %v2
-#define A3 %v3
-
-#define B0 %v4
-#define B1 %v5
-#define B2 %v6
-#define B3 %v7
-
-#define C0 %v8
-#define C1 %v9
-#define C2 %v10
-#define C3 %v11
-
-#define D0 %v12
-#define D1 %v13
-#define D2 %v14
-#define D3 %v15
-
-#define E0 %v16
-#define E1 %v17
-#define E2 %v18
-#define E3 %v19
-
-#define F0 %v20
-#define F1 %v21
-#define F2 %v22
-#define F3 %v23
-
-#define G0 %v24
-#define G1 %v25
-#define G2 %v26
-#define G3 %v27
-
-#define H0 %v28
-#define H1 %v29
-#define H2 %v30
-#define H3 %v31
-
-#define IO0 E0
-#define IO1 E1
-#define IO2 E2
-#define IO3 E3
-#define IO4 F0
-#define IO5 F1
-#define IO6 F2
-#define IO7 F3
-
-#define S0 G0
-#define S1 G1
-#define S2 G2
-#define S3 G3
-
-#define TMP0 H0
-#define TMP1 H1
-#define TMP2 H2
-#define TMP3 H3
-
-#define X0 A0
-#define X1 A1
-#define X2 A2
-#define X3 A3
-#define X4 B0
-#define X5 B1
-#define X6 B2
-#define X7 B3
-#define X8 C0
-#define X9 C1
-#define X10 C2
-#define X11 C3
-#define X12 D0
-#define X13 D1
-#define X14 D2
-#define X15 D3
-
-#define Y0 E0
-#define Y1 E1
-#define Y2 E2
-#define Y3 E3
-#define Y4 F0
-#define Y5 F1
-#define Y6 F2
-#define Y7 F3
-#define Y8 G0
-#define Y9 G1
-#define Y10 G2
-#define Y11 G3
-#define Y12 H0
-#define Y13 H1
-#define Y14 H2
-#define Y15 H3
-
-/**********************************************************************
-  helper macros
- **********************************************************************/
-
-#define _ /*_*/
-
-#define START_STACK(last_r) \
-	lgr %r0, %r15; \
-	lghi %r1, ~15; \
-	stmg %r6, last_r, 6 * 8(%r15); \
-	aghi %r0, -STACK_MAX; \
-	ngr %r0, %r1; \
-	lgr %r1, %r15; \
-	cfi_def_cfa_register(1); \
-	lgr %r15, %r0; \
-	stg %r1, 0(%r15); \
-	cfi_cfa_on_stack(0, 0); \
-	std %f8, STACK_F8(%r15); \
-	std %f9, STACK_F9(%r15); \
-	std %f10, STACK_F10(%r15); \
-	std %f11, STACK_F11(%r15); \
-	std %f12, STACK_F12(%r15); \
-	std %f13, STACK_F13(%r15); \
-	std %f14, STACK_F14(%r15); \
-	std %f15, STACK_F15(%r15);
-
-#define END_STACK(last_r) \
-	lg %r1, 0(%r15); \
-	ld %f8, STACK_F8(%r15); \
-	ld %f9, STACK_F9(%r15); \
-	ld %f10, STACK_F10(%r15); \
-	ld %f11, STACK_F11(%r15); \
-	ld %f12, STACK_F12(%r15); \
-	ld %f13, STACK_F13(%r15); \
-	ld %f14, STACK_F14(%r15); \
-	ld %f15, STACK_F15(%r15); \
-	lmg %r6, last_r, 6 * 8(%r1); \
-	lgr %r15, %r1; \
-	cfi_def_cfa_register(DW_REGNO_SP);
-
-#define PLUS(dst,src) \
-	vaf dst, dst, src;
-
-#define XOR(dst,src) \
-	vx dst, dst, src;
-
-#define ROTATE(v1,c) \
-	verllf v1, v1, (c)(0);
-
-#define WORD_ROTATE(v1,s) \
-	vsldb v1, v1, v1, ((s) * 4);
-
-#define DST_8(OPER, I, J) \
-	OPER(A##I, J); OPER(B##I, J); OPER(C##I, J); OPER(D##I, J); \
-	OPER(E##I, J); OPER(F##I, J); OPER(G##I, J); OPER(H##I, J);
-
-/**********************************************************************
-  round macros
- **********************************************************************/
-
-/**********************************************************************
-  8-way chacha20 ("vertical")
- **********************************************************************/
-
-#define QUARTERROUND4_V8_POLY(x0,x1,x2,x3,x4,x5,x6,x7,\
-			      x8,x9,x10,x11,x12,x13,x14,x15,\
-			      y0,y1,y2,y3,y4,y5,y6,y7,\
-			      y8,y9,y10,y11,y12,y13,y14,y15,\
-			      op1,op2,op3,op4,op5,op6,op7,op8,\
-			      op9,op10,op11,op12) \
-	op1;							\
-	PLUS(x0, x1); PLUS(x4, x5);				\
-	PLUS(x8, x9); PLUS(x12, x13);				\
-	PLUS(y0, y1); PLUS(y4, y5);				\
-	PLUS(y8, y9); PLUS(y12, y13);				\
-	    op2;						\
-	    XOR(x3, x0);  XOR(x7, x4);				\
-	    XOR(x11, x8); XOR(x15, x12);			\
-	    XOR(y3, y0);  XOR(y7, y4);				\
-	    XOR(y11, y8); XOR(y15, y12);			\
-		op3;						\
-		ROTATE(x3, 16); ROTATE(x7, 16);			\
-		ROTATE(x11, 16); ROTATE(x15, 16);		\
-		ROTATE(y3, 16); ROTATE(y7, 16);			\
-		ROTATE(y11, 16); ROTATE(y15, 16);		\
-	op4;							\
-	PLUS(x2, x3); PLUS(x6, x7);				\
-	PLUS(x10, x11); PLUS(x14, x15);				\
-	PLUS(y2, y3); PLUS(y6, y7);				\
-	PLUS(y10, y11); PLUS(y14, y15);				\
-	    op5;						\
-	    XOR(x1, x2); XOR(x5, x6);				\
-	    XOR(x9, x10); XOR(x13, x14);			\
-	    XOR(y1, y2); XOR(y5, y6);				\
-	    XOR(y9, y10); XOR(y13, y14);			\
-		op6;						\
-		ROTATE(x1,12); ROTATE(x5,12);			\
-		ROTATE(x9,12); ROTATE(x13,12);			\
-		ROTATE(y1,12); ROTATE(y5,12);			\
-		ROTATE(y9,12); ROTATE(y13,12);			\
-	op7;							\
-	PLUS(x0, x1); PLUS(x4, x5);				\
-	PLUS(x8, x9); PLUS(x12, x13);				\
-	PLUS(y0, y1); PLUS(y4, y5);				\
-	PLUS(y8, y9); PLUS(y12, y13);				\
-	    op8;						\
-	    XOR(x3, x0); XOR(x7, x4);				\
-	    XOR(x11, x8); XOR(x15, x12);			\
-	    XOR(y3, y0); XOR(y7, y4);				\
-	    XOR(y11, y8); XOR(y15, y12);			\
-		op9;						\
-		ROTATE(x3,8); ROTATE(x7,8);			\
-		ROTATE(x11,8); ROTATE(x15,8);			\
-		ROTATE(y3,8); ROTATE(y7,8);			\
-		ROTATE(y11,8); ROTATE(y15,8);			\
-	op10;							\
-	PLUS(x2, x3); PLUS(x6, x7);				\
-	PLUS(x10, x11); PLUS(x14, x15);				\
-	PLUS(y2, y3); PLUS(y6, y7);				\
-	PLUS(y10, y11); PLUS(y14, y15);				\
-	    op11;						\
-	    XOR(x1, x2); XOR(x5, x6);				\
-	    XOR(x9, x10); XOR(x13, x14);			\
-	    XOR(y1, y2); XOR(y5, y6);				\
-	    XOR(y9, y10); XOR(y13, y14);			\
-		op12;						\
-		ROTATE(x1,7); ROTATE(x5,7);			\
-		ROTATE(x9,7); ROTATE(x13,7);			\
-		ROTATE(y1,7); ROTATE(y5,7);			\
-		ROTATE(y9,7); ROTATE(y13,7);
-
-#define QUARTERROUND4_V8(x0,x1,x2,x3,x4,x5,x6,x7,x8,x9,x10,x11,x12,x13,x14,x15,\
-			 y0,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11,y12,y13,y14,y15) \
-	QUARTERROUND4_V8_POLY(x0,x1,x2,x3,x4,x5,x6,x7,\
-			      x8,x9,x10,x11,x12,x13,x14,x15,\
-			      y0,y1,y2,y3,y4,y5,y6,y7,\
-			      y8,y9,y10,y11,y12,y13,y14,y15,\
-			      ,,,,,,,,,,,)
-
-#define TRANSPOSE_4X4_2(v0,v1,v2,v3,va,vb,vc,vd,tmp0,tmp1,tmp2,tmpa,tmpb,tmpc) \
-	  vmrhf tmp0, v0, v1;					\
-	  vmrhf tmp1, v2, v3;					\
-	  vmrlf tmp2, v0, v1;					\
-	  vmrlf   v3, v2, v3;					\
-	  vmrhf tmpa, va, vb;					\
-	  vmrhf tmpb, vc, vd;					\
-	  vmrlf tmpc, va, vb;					\
-	  vmrlf   vd, vc, vd;					\
-	  vpdi v0, tmp0, tmp1, 0;				\
-	  vpdi v1, tmp0, tmp1, 5;				\
-	  vpdi v2, tmp2,   v3, 0;				\
-	  vpdi v3, tmp2,   v3, 5;				\
-	  vpdi va, tmpa, tmpb, 0;				\
-	  vpdi vb, tmpa, tmpb, 5;				\
-	  vpdi vc, tmpc,   vd, 0;				\
-	  vpdi vd, tmpc,   vd, 5;
-
-.balign 8
-.globl __chacha20_s390x_vx_blocks8
-ENTRY (__chacha20_s390x_vx_blocks8)
-	/* input:
-	 *	%r2: input
-	 *	%r3: dst
-	 *	%r4: src
-	 *	%r5: nblks (multiple of 8)
-	 */
-
-	START_STACK(%r8);
-	lgr NBLKS, %r5;
-
-	larl %r7, .Lconsts;
-
-	/* Load counter. */
-	lg %r8, (12 * 4)(INPUT);
-	rllg %r8, %r8, 32;
-
-.balign 4
-	/* Process eight chacha20 blocks per loop. */
-.Lloop8:
-	vlm Y0, Y3, 0(INPUT);
-
-	slgfi NBLKS, 8;
-	lghi ROUND, (20 / 2);
-
-	/* Construct counter vectors X12/X13 & Y12/Y13. */
-	vl X4, (.Ladd_counter_0123 - .Lconsts)(%r7);
-	vl Y4, (.Ladd_counter_4567 - .Lconsts)(%r7);
-	vrepf Y12, Y3, 0;
-	vrepf Y13, Y3, 1;
-	vaccf X5, Y12, X4;
-	vaccf Y5, Y12, Y4;
-	vaf X12, Y12, X4;
-	vaf Y12, Y12, Y4;
-	vaf X13, Y13, X5;
-	vaf Y13, Y13, Y5;
-
-	vrepf X0, Y0, 0;
-	vrepf X1, Y0, 1;
-	vrepf X2, Y0, 2;
-	vrepf X3, Y0, 3;
-	vrepf X4, Y1, 0;
-	vrepf X5, Y1, 1;
-	vrepf X6, Y1, 2;
-	vrepf X7, Y1, 3;
-	vrepf X8, Y2, 0;
-	vrepf X9, Y2, 1;
-	vrepf X10, Y2, 2;
-	vrepf X11, Y2, 3;
-	vrepf X14, Y3, 2;
-	vrepf X15, Y3, 3;
-
-	/* Store counters for blocks 0-7. */
-	vstm X12, X13, (STACK_CTR + 0 * 16)(%r15);
-	vstm Y12, Y13, (STACK_CTR + 2 * 16)(%r15);
-
-	vlr Y0, X0;
-	vlr Y1, X1;
-	vlr Y2, X2;
-	vlr Y3, X3;
-	vlr Y4, X4;
-	vlr Y5, X5;
-	vlr Y6, X6;
-	vlr Y7, X7;
-	vlr Y8, X8;
-	vlr Y9, X9;
-	vlr Y10, X10;
-	vlr Y11, X11;
-	vlr Y14, X14;
-	vlr Y15, X15;
-
-	/* Update and store counter. */
-	agfi %r8, 8;
-	rllg %r5, %r8, 32;
-	stg %r5, (12 * 4)(INPUT);
-
-.balign 4
-.Lround2_8:
-	QUARTERROUND4_V8(X0, X4,  X8, X12,   X1, X5,  X9, X13,
-			 X2, X6, X10, X14,   X3, X7, X11, X15,
-			 Y0, Y4,  Y8, Y12,   Y1, Y5,  Y9, Y13,
-			 Y2, Y6, Y10, Y14,   Y3, Y7, Y11, Y15);
-	QUARTERROUND4_V8(X0, X5, X10, X15,   X1, X6, X11, X12,
-			 X2, X7,  X8, X13,   X3, X4,  X9, X14,
-			 Y0, Y5, Y10, Y15,   Y1, Y6, Y11, Y12,
-			 Y2, Y7,  Y8, Y13,   Y3, Y4,  Y9, Y14);
-	brctg ROUND, .Lround2_8;
-
-	/* Store blocks 4-7. */
-	vstm Y0, Y15, STACK_Y0_Y15(%r15);
-
-	/* Load counters for blocks 0-3. */
-	vlm Y0, Y1, (STACK_CTR + 0 * 16)(%r15);
-
-	lghi ROUND, 1;
-	j .Lfirst_output_4blks_8;
-
-.balign 4
-.Lsecond_output_4blks_8:
-	/* Load blocks 4-7. */
-	vlm X0, X15, STACK_Y0_Y15(%r15);
-
-	/* Load counters for blocks 4-7. */
-	vlm Y0, Y1, (STACK_CTR + 2 * 16)(%r15);
-
-	lghi ROUND, 0;
-
-.balign 4
-	/* Output four chacha20 blocks per loop. */
-.Lfirst_output_4blks_8:
-	vlm Y12, Y15, 0(INPUT);
-	PLUS(X12, Y0);
-	PLUS(X13, Y1);
-	vrepf Y0, Y12, 0;
-	vrepf Y1, Y12, 1;
-	vrepf Y2, Y12, 2;
-	vrepf Y3, Y12, 3;
-	vrepf Y4, Y13, 0;
-	vrepf Y5, Y13, 1;
-	vrepf Y6, Y13, 2;
-	vrepf Y7, Y13, 3;
-	vrepf Y8, Y14, 0;
-	vrepf Y9, Y14, 1;
-	vrepf Y10, Y14, 2;
-	vrepf Y11, Y14, 3;
-	vrepf Y14, Y15, 2;
-	vrepf Y15, Y15, 3;
-	PLUS(X0, Y0);
-	PLUS(X1, Y1);
-	PLUS(X2, Y2);
-	PLUS(X3, Y3);
-	PLUS(X4, Y4);
-	PLUS(X5, Y5);
-	PLUS(X6, Y6);
-	PLUS(X7, Y7);
-	PLUS(X8, Y8);
-	PLUS(X9, Y9);
-	PLUS(X10, Y10);
-	PLUS(X11, Y11);
-	PLUS(X14, Y14);
-	PLUS(X15, Y15);
-
-	vl Y15, (.Lbswap32 - .Lconsts)(%r7);
-	TRANSPOSE_4X4_2(X0, X1, X2, X3, X4, X5, X6, X7,
-			Y9, Y10, Y11, Y12, Y13, Y14);
-	TRANSPOSE_4X4_2(X8, X9, X10, X11, X12, X13, X14, X15,
-			Y9, Y10, Y11, Y12, Y13, Y14);
-
-	vlm Y0, Y14, 0(SRC);
-	vperm X0, X0, X0, Y15;
-	vperm X1, X1, X1, Y15;
-	vperm X2, X2, X2, Y15;
-	vperm X3, X3, X3, Y15;
-	vperm X4, X4, X4, Y15;
-	vperm X5, X5, X5, Y15;
-	vperm X6, X6, X6, Y15;
-	vperm X7, X7, X7, Y15;
-	vperm X8, X8, X8, Y15;
-	vperm X9, X9, X9, Y15;
-	vperm X10, X10, X10, Y15;
-	vperm X11, X11, X11, Y15;
-	vperm X12, X12, X12, Y15;
-	vperm X13, X13, X13, Y15;
-	vperm X14, X14, X14, Y15;
-	vperm X15, X15, X15, Y15;
-	vl Y15, (15 * 16)(SRC);
-
-	XOR(Y0, X0);
-	XOR(Y1, X4);
-	XOR(Y2, X8);
-	XOR(Y3, X12);
-	XOR(Y4, X1);
-	XOR(Y5, X5);
-	XOR(Y6, X9);
-	XOR(Y7, X13);
-	XOR(Y8, X2);
-	XOR(Y9, X6);
-	XOR(Y10, X10);
-	XOR(Y11, X14);
-	XOR(Y12, X3);
-	XOR(Y13, X7);
-	XOR(Y14, X11);
-	XOR(Y15, X15);
-	vstm Y0, Y15, 0(DST);
-
-	aghi SRC, 256;
-	aghi DST, 256;
-
-	clgije ROUND, 1, .Lsecond_output_4blks_8;
-
-	clgijhe NBLKS, 8, .Lloop8;
-
-
-	END_STACK(%r8);
-	xgr %r2, %r2;
-	br %r14;
-END (__chacha20_s390x_vx_blocks8)
-
-#endif /* HAVE_S390_VX_ASM_SUPPORT */
diff --git a/sysdeps/s390/s390-64/chacha20_arch.h b/sysdeps/s390/s390-64/chacha20_arch.h
deleted file mode 100644
index 0c6abf77e8..0000000000
--- a/sysdeps/s390/s390-64/chacha20_arch.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/* s390x optimization for ChaCha20.VE_S390_VX_ASM_SUPPORT
-   Copyright (C) 2022 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   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 published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#include <stdbool.h>
-#include <ldsodefs.h>
-#include <sys/auxv.h>
-
-unsigned int __chacha20_s390x_vx_blocks8 (uint32_t *state, uint8_t *dst,
-					  const uint8_t *src, size_t nblks)
-     attribute_hidden;
-
-static inline void
-chacha20_crypt (uint32_t *state, uint8_t *dst, const uint8_t *src,
-		size_t bytes)
-{
-#ifdef HAVE_S390_VX_ASM_SUPPORT
-  _Static_assert (CHACHA20_BUFSIZE % 8 == 0,
-		  "CHACHA20_BUFSIZE not multiple of 8");
-  _Static_assert (CHACHA20_BUFSIZE >= CHACHA20_BLOCK_SIZE * 8,
-		  "CHACHA20_BUFSIZE < CHACHA20_BLOCK_SIZE * 8");
-
-  if (GLRO(dl_hwcap) & HWCAP_S390_VX)
-    {
-      __chacha20_s390x_vx_blocks8 (state, dst, src,
-				   CHACHA20_BUFSIZE / CHACHA20_BLOCK_SIZE);
-      return;
-    }
-#endif
-  chacha20_crypt_generic (state, dst, src, bytes);
-}
diff --git a/sysdeps/unix/sysv/linux/tls-internal.c b/sysdeps/unix/sysv/linux/tls-internal.c
index 0326ebb767..c8a9ed2d40 100644
--- a/sysdeps/unix/sysv/linux/tls-internal.c
+++ b/sysdeps/unix/sysv/linux/tls-internal.c
@@ -16,7 +16,6 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-#include <stdlib/arc4random.h>
 #include <string.h>
 #include <tls-internal.h>
 
@@ -26,13 +25,4 @@ __glibc_tls_internal_free (void)
   struct pthread *self = THREAD_SELF;
   free (self->tls_state.strsignal_buf);
   free (self->tls_state.strerror_l_buf);
-
-  if (self->tls_state.rand_state != NULL)
-    {
-      /* Clear any lingering random state prior so if the thread stack is
-         cached it won't leak any data.  */
-      explicit_bzero (self->tls_state.rand_state,
-		      sizeof (*self->tls_state.rand_state));
-      free (self->tls_state.rand_state);
-    }
 }
diff --git a/sysdeps/x86_64/Makefile b/sysdeps/x86_64/Makefile
index 1178475d75..c19bef2dec 100644
--- a/sysdeps/x86_64/Makefile
+++ b/sysdeps/x86_64/Makefile
@@ -5,13 +5,6 @@ ifeq ($(subdir),csu)
 gen-as-const-headers += link-defines.sym
 endif
 
-ifeq ($(subdir),stdlib)
-sysdep_routines += \
-  chacha20-amd64-sse2 \
-  chacha20-amd64-avx2 \
-  # sysdep_routines
-endif
-
 ifeq ($(subdir),gmon)
 sysdep_routines += _mcount
 # We cannot compile _mcount.S with -pg because that would create
diff --git a/sysdeps/x86_64/chacha20-amd64-avx2.S b/sysdeps/x86_64/chacha20-amd64-avx2.S
deleted file mode 100644
index aefd1cdbd0..0000000000
--- a/sysdeps/x86_64/chacha20-amd64-avx2.S
+++ /dev/null
@@ -1,328 +0,0 @@
-/* Optimized AVX2 implementation of ChaCha20 cipher.
-   Copyright (C) 2022 Free Software Foundation, Inc.
-
-   This file is part of the GNU C Library.
-
-   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 published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-/* chacha20-amd64-avx2.S  -  AVX2 implementation of ChaCha20 cipher
-
-   Copyright (C) 2017-2019 Jussi Kivilinna <jussi.kivilinna@iki.fi>
-
-   This file is part of Libgcrypt.
-
-   Libgcrypt is free software; you can redistribute it and/or modify
-   it under the terms of the GNU Lesser General Public License as
-   published by the Free Software Foundation; either version 2.1 of
-   the License, or (at your option) any later version.
-
-   Libgcrypt is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with this program; if not, see <https://www.gnu.org/licenses/>.
-*/
-
-/* Based on D. J. Bernstein reference implementation at
-   http://cr.yp.to/chacha.html:
-
-   chacha-regs.c version 20080118
-   D. J. Bernstein
-   Public domain.  */
-
-#include <sysdep.h>
-
-#ifdef PIC
-#  define rRIP (%rip)
-#else
-#  define rRIP
-#endif
-
-/* register macros */
-#define INPUT %rdi
-#define DST   %rsi
-#define SRC   %rdx
-#define NBLKS %rcx
-#define ROUND %eax
-
-/* stack structure */
-#define STACK_VEC_X12 (32)
-#define STACK_VEC_X13 (32 + STACK_VEC_X12)
-#define STACK_TMP     (32 + STACK_VEC_X13)
-#define STACK_TMP1    (32 + STACK_TMP)
-
-#define STACK_MAX     (32 + STACK_TMP1)
-
-/* vector registers */
-#define X0 %ymm0
-#define X1 %ymm1
-#define X2 %ymm2
-#define X3 %ymm3
-#define X4 %ymm4
-#define X5 %ymm5
-#define X6 %ymm6
-#define X7 %ymm7
-#define X8 %ymm8
-#define X9 %ymm9
-#define X10 %ymm10
-#define X11 %ymm11
-#define X12 %ymm12
-#define X13 %ymm13
-#define X14 %ymm14
-#define X15 %ymm15
-
-#define X0h %xmm0
-#define X1h %xmm1
-#define X2h %xmm2
-#define X3h %xmm3
-#define X4h %xmm4
-#define X5h %xmm5
-#define X6h %xmm6
-#define X7h %xmm7
-#define X8h %xmm8
-#define X9h %xmm9
-#define X10h %xmm10
-#define X11h %xmm11
-#define X12h %xmm12
-#define X13h %xmm13
-#define X14h %xmm14
-#define X15h %xmm15
-
-/**********************************************************************
-  helper macros
- **********************************************************************/
-
-/* 4x4 32-bit integer matrix transpose */
-#define transpose_4x4(x0,x1,x2,x3,t1,t2) \
-	vpunpckhdq x1, x0, t2; \
-	vpunpckldq x1, x0, x0; \
-	\
-	vpunpckldq x3, x2, t1; \
-	vpunpckhdq x3, x2, x2; \
-	\
-	vpunpckhqdq t1, x0, x1; \
-	vpunpcklqdq t1, x0, x0; \
-	\
-	vpunpckhqdq x2, t2, x3; \
-	vpunpcklqdq x2, t2, x2;
-
-/* 2x2 128-bit matrix transpose */
-#define transpose_16byte_2x2(x0,x1,t1) \
-	vmovdqa    x0, t1; \
-	vperm2i128 $0x20, x1, x0, x0; \
-	vperm2i128 $0x31, x1, t1, x1;
-
-/**********************************************************************
-  8-way chacha20
- **********************************************************************/
-
-#define ROTATE2(v1,v2,c,tmp)	\
-	vpsrld $(32 - (c)), v1, tmp;	\
-	vpslld $(c), v1, v1;		\
-	vpaddb tmp, v1, v1;		\
-	vpsrld $(32 - (c)), v2, tmp;	\
-	vpslld $(c), v2, v2;		\
-	vpaddb tmp, v2, v2;
-
-#define ROTATE_SHUF_2(v1,v2,shuf)	\
-	vpshufb shuf, v1, v1;		\
-	vpshufb shuf, v2, v2;
-
-#define XOR(ds,s) \
-	vpxor s, ds, ds;
-
-#define PLUS(ds,s) \
-	vpaddd s, ds, ds;
-
-#define QUARTERROUND2(a1,b1,c1,d1,a2,b2,c2,d2,ign,tmp1,\
-		      interleave_op1,interleave_op2,\
-		      interleave_op3,interleave_op4)		\
-	vbroadcasti128 .Lshuf_rol16 rRIP, tmp1;			\
-		interleave_op1;					\
-	PLUS(a1,b1); PLUS(a2,b2); XOR(d1,a1); XOR(d2,a2);	\
-	    ROTATE_SHUF_2(d1, d2, tmp1);			\
-		interleave_op2;					\
-	PLUS(c1,d1); PLUS(c2,d2); XOR(b1,c1); XOR(b2,c2);	\
-	    ROTATE2(b1, b2, 12, tmp1);				\
-	vbroadcasti128 .Lshuf_rol8 rRIP, tmp1;			\
-		interleave_op3;					\
-	PLUS(a1,b1); PLUS(a2,b2); XOR(d1,a1); XOR(d2,a2);	\
-	    ROTATE_SHUF_2(d1, d2, tmp1);			\
-		interleave_op4;					\
-	PLUS(c1,d1); PLUS(c2,d2); XOR(b1,c1); XOR(b2,c2);	\
-	    ROTATE2(b1, b2,  7, tmp1);
-
-	.section .text.avx2, "ax", @progbits
-	.align 32
-chacha20_data:
-L(shuf_rol16):
-	.byte 2,3,0,1,6,7,4,5,10,11,8,9,14,15,12,13
-L(shuf_rol8):
-	.byte 3,0,1,2,7,4,5,6,11,8,9,10,15,12,13,14
-L(inc_counter):
-	.byte 0,1,2,3,4,5,6,7
-L(unsigned_cmp):
-	.long 0x80000000
-
-	.hidden __chacha20_avx2_blocks8
-ENTRY (__chacha20_avx2_blocks8)
-	/* input:
-	 *	%rdi: input
-	 *	%rsi: dst
-	 *	%rdx: src
-	 *	%rcx: nblks (multiple of 8)
-	 */
-	vzeroupper;
-
-	pushq %rbp;
-	cfi_adjust_cfa_offset(8);
-	cfi_rel_offset(rbp, 0)
-	movq %rsp, %rbp;
-	cfi_def_cfa_register(rbp);
-
-	subq $STACK_MAX, %rsp;
-	andq $~31, %rsp;
-
-L(loop8):
-	mov $20, ROUND;
-
-	/* Construct counter vectors X12 and X13 */
-	vpmovzxbd L(inc_counter) rRIP, X0;
-	vpbroadcastd L(unsigned_cmp) rRIP, X2;
-	vpbroadcastd (12 * 4)(INPUT), X12;
-	vpbroadcastd (13 * 4)(INPUT), X13;
-	vpaddd X0, X12, X12;
-	vpxor X2, X0, X0;
-	vpxor X2, X12, X1;
-	vpcmpgtd X1, X0, X0;
-	vpsubd X0, X13, X13;
-	vmovdqa X12, (STACK_VEC_X12)(%rsp);
-	vmovdqa X13, (STACK_VEC_X13)(%rsp);
-
-	/* Load vectors */
-	vpbroadcastd (0 * 4)(INPUT), X0;
-	vpbroadcastd (1 * 4)(INPUT), X1;
-	vpbroadcastd (2 * 4)(INPUT), X2;
-	vpbroadcastd (3 * 4)(INPUT), X3;
-	vpbroadcastd (4 * 4)(INPUT), X4;
-	vpbroadcastd (5 * 4)(INPUT), X5;
-	vpbroadcastd (6 * 4)(INPUT), X6;
-	vpbroadcastd (7 * 4)(INPUT), X7;
-	vpbroadcastd (8 * 4)(INPUT), X8;
-	vpbroadcastd (9 * 4)(INPUT), X9;
-	vpbroadcastd (10 * 4)(INPUT), X10;
-	vpbroadcastd (11 * 4)(INPUT), X11;
-	vpbroadcastd (14 * 4)(INPUT), X14;
-	vpbroadcastd (15 * 4)(INPUT), X15;
-	vmovdqa X15, (STACK_TMP)(%rsp);
-
-L(round2):
-	QUARTERROUND2(X0, X4,  X8, X12,   X1, X5,  X9, X13, tmp:=,X15,,,,)
-	vmovdqa (STACK_TMP)(%rsp), X15;
-	vmovdqa X8, (STACK_TMP)(%rsp);
-	QUARTERROUND2(X2, X6, X10, X14,   X3, X7, X11, X15, tmp:=,X8,,,,)
-	QUARTERROUND2(X0, X5, X10, X15,   X1, X6, X11, X12, tmp:=,X8,,,,)
-	vmovdqa (STACK_TMP)(%rsp), X8;
-	vmovdqa X15, (STACK_TMP)(%rsp);
-	QUARTERROUND2(X2, X7,  X8, X13,   X3, X4,  X9, X14, tmp:=,X15,,,,)
-	sub $2, ROUND;
-	jnz L(round2);
-
-	vmovdqa X8, (STACK_TMP1)(%rsp);
-
-	/* tmp := X15 */
-	vpbroadcastd (0 * 4)(INPUT), X15;
-	PLUS(X0, X15);
-	vpbroadcastd (1 * 4)(INPUT), X15;
-	PLUS(X1, X15);
-	vpbroadcastd (2 * 4)(INPUT), X15;
-	PLUS(X2, X15);
-	vpbroadcastd (3 * 4)(INPUT), X15;
-	PLUS(X3, X15);
-	vpbroadcastd (4 * 4)(INPUT), X15;
-	PLUS(X4, X15);
-	vpbroadcastd (5 * 4)(INPUT), X15;
-	PLUS(X5, X15);
-	vpbroadcastd (6 * 4)(INPUT), X15;
-	PLUS(X6, X15);
-	vpbroadcastd (7 * 4)(INPUT), X15;
-	PLUS(X7, X15);
-	transpose_4x4(X0, X1, X2, X3, X8, X15);
-	transpose_4x4(X4, X5, X6, X7, X8, X15);
-	vmovdqa (STACK_TMP1)(%rsp), X8;
-	transpose_16byte_2x2(X0, X4, X15);
-	transpose_16byte_2x2(X1, X5, X15);
-	transpose_16byte_2x2(X2, X6, X15);
-	transpose_16byte_2x2(X3, X7, X15);
-	vmovdqa (STACK_TMP)(%rsp), X15;
-	vmovdqu X0, (64 * 0 + 16 * 0)(DST)
-	vmovdqu X1, (64 * 1 + 16 * 0)(DST)
-	vpbroadcastd (8 * 4)(INPUT), X0;
-	PLUS(X8, X0);
-	vpbroadcastd (9 * 4)(INPUT), X0;
-	PLUS(X9, X0);
-	vpbroadcastd (10 * 4)(INPUT), X0;
-	PLUS(X10, X0);
-	vpbroadcastd (11 * 4)(INPUT), X0;
-	PLUS(X11, X0);
-	vmovdqa (STACK_VEC_X12)(%rsp), X0;
-	PLUS(X12, X0);
-	vmovdqa (STACK_VEC_X13)(%rsp), X0;
-	PLUS(X13, X0);
-	vpbroadcastd (14 * 4)(INPUT), X0;
-	PLUS(X14, X0);
-	vpbroadcastd (15 * 4)(INPUT), X0;
-	PLUS(X15, X0);
-	vmovdqu X2, (64 * 2 + 16 * 0)(DST)
-	vmovdqu X3, (64 * 3 + 16 * 0)(DST)
-
-	/* Update counter */
-	addq $8, (12 * 4)(INPUT);
-
-	transpose_4x4(X8, X9, X10, X11, X0, X1);
-	transpose_4x4(X12, X13, X14, X15, X0, X1);
-	vmovdqu X4, (64 * 4 + 16 * 0)(DST)
-	vmovdqu X5, (64 * 5 + 16 * 0)(DST)
-	transpose_16byte_2x2(X8, X12, X0);
-	transpose_16byte_2x2(X9, X13, X0);
-	transpose_16byte_2x2(X10, X14, X0);
-	transpose_16byte_2x2(X11, X15, X0);
-	vmovdqu X6,  (64 * 6 + 16 * 0)(DST)
-	vmovdqu X7,  (64 * 7 + 16 * 0)(DST)
-	vmovdqu X8,  (64 * 0 + 16 * 2)(DST)
-	vmovdqu X9,  (64 * 1 + 16 * 2)(DST)
-	vmovdqu X10, (64 * 2 + 16 * 2)(DST)
-	vmovdqu X11, (64 * 3 + 16 * 2)(DST)
-	vmovdqu X12, (64 * 4 + 16 * 2)(DST)
-	vmovdqu X13, (64 * 5 + 16 * 2)(DST)
-	vmovdqu X14, (64 * 6 + 16 * 2)(DST)
-	vmovdqu X15, (64 * 7 + 16 * 2)(DST)
-
-	sub $8, NBLKS;
-	lea (8 * 64)(DST), DST;
-	lea (8 * 64)(SRC), SRC;
-	jnz L(loop8);
-
-	vzeroupper;
-
-	/* eax zeroed by round loop. */
-	leave;
-	cfi_adjust_cfa_offset(-8)
-	cfi_def_cfa_register(%rsp);
-	ret;
-	int3;
-END(__chacha20_avx2_blocks8)
diff --git a/sysdeps/x86_64/chacha20-amd64-sse2.S b/sysdeps/x86_64/chacha20-amd64-sse2.S
deleted file mode 100644
index 351a1109c6..0000000000
--- a/sysdeps/x86_64/chacha20-amd64-sse2.S
+++ /dev/null
@@ -1,311 +0,0 @@
-/* Optimized SSE2 implementation of ChaCha20 cipher.
-   Copyright (C) 2022 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   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 published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-/* chacha20-amd64-ssse3.S  -  SSSE3 implementation of ChaCha20 cipher
-
-   Copyright (C) 2017-2019 Jussi Kivilinna <jussi.kivilinna@iki.fi>
-
-   This file is part of Libgcrypt.
-
-   Libgcrypt is free software; you can redistribute it and/or modify
-   it under the terms of the GNU Lesser General Public License as
-   published by the Free Software Foundation; either version 2.1 of
-   the License, or (at your option) any later version.
-
-   Libgcrypt is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with this program; if not, see <https://www.gnu.org/licenses/>.
-*/
-
-/* Based on D. J. Bernstein reference implementation at
-   http://cr.yp.to/chacha.html:
-
-   chacha-regs.c version 20080118
-   D. J. Bernstein
-   Public domain.  */
-
-#include <sysdep.h>
-#include <isa-level.h>
-
-#if MINIMUM_X86_ISA_LEVEL <= 2
-
-#ifdef PIC
-#  define rRIP (%rip)
-#else
-#  define rRIP
-#endif
-
-/* 'ret' instruction replacement for straight-line speculation mitigation */
-#define ret_spec_stop \
-        ret; int3;
-
-/* register macros */
-#define INPUT %rdi
-#define DST   %rsi
-#define SRC   %rdx
-#define NBLKS %rcx
-#define ROUND %eax
-
-/* stack structure */
-#define STACK_VEC_X12 (16)
-#define STACK_VEC_X13 (16 + STACK_VEC_X12)
-#define STACK_TMP     (16 + STACK_VEC_X13)
-#define STACK_TMP1    (16 + STACK_TMP)
-#define STACK_TMP2    (16 + STACK_TMP1)
-
-#define STACK_MAX     (16 + STACK_TMP2)
-
-/* vector registers */
-#define X0 %xmm0
-#define X1 %xmm1
-#define X2 %xmm2
-#define X3 %xmm3
-#define X4 %xmm4
-#define X5 %xmm5
-#define X6 %xmm6
-#define X7 %xmm7
-#define X8 %xmm8
-#define X9 %xmm9
-#define X10 %xmm10
-#define X11 %xmm11
-#define X12 %xmm12
-#define X13 %xmm13
-#define X14 %xmm14
-#define X15 %xmm15
-
-/**********************************************************************
-  helper macros
- **********************************************************************/
-
-/* 4x4 32-bit integer matrix transpose */
-#define TRANSPOSE_4x4(x0, x1, x2, x3, t1, t2, t3) \
-	movdqa    x0, t2; \
-	punpckhdq x1, t2; \
-	punpckldq x1, x0; \
-	\
-	movdqa    x2, t1; \
-	punpckldq x3, t1; \
-	punpckhdq x3, x2; \
-	\
-	movdqa     x0, x1; \
-	punpckhqdq t1, x1; \
-	punpcklqdq t1, x0; \
-	\
-	movdqa     t2, x3; \
-	punpckhqdq x2, x3; \
-	punpcklqdq x2, t2; \
-	movdqa     t2, x2;
-
-/* fill xmm register with 32-bit value from memory */
-#define PBROADCASTD(mem32, xreg) \
-	movd mem32, xreg; \
-	pshufd $0, xreg, xreg;
-
-/**********************************************************************
-  4-way chacha20
- **********************************************************************/
-
-#define ROTATE2(v1,v2,c,tmp1,tmp2)	\
-	movdqa v1, tmp1; 		\
-	movdqa v2, tmp2; 		\
-	psrld $(32 - (c)), v1;		\
-	pslld $(c), tmp1;		\
-	paddb tmp1, v1;			\
-	psrld $(32 - (c)), v2;		\
-	pslld $(c), tmp2;		\
-	paddb tmp2, v2;
-
-#define XOR(ds,s) \
-	pxor s, ds;
-
-#define PLUS(ds,s) \
-	paddd s, ds;
-
-#define QUARTERROUND2(a1,b1,c1,d1,a2,b2,c2,d2,ign,tmp1,tmp2)	\
-	PLUS(a1,b1); PLUS(a2,b2); XOR(d1,a1); XOR(d2,a2);	\
-	    ROTATE2(d1, d2, 16, tmp1, tmp2);			\
-	PLUS(c1,d1); PLUS(c2,d2); XOR(b1,c1); XOR(b2,c2);	\
-	    ROTATE2(b1, b2, 12, tmp1, tmp2);			\
-	PLUS(a1,b1); PLUS(a2,b2); XOR(d1,a1); XOR(d2,a2);	\
-	    ROTATE2(d1, d2, 8, tmp1, tmp2);			\
-	PLUS(c1,d1); PLUS(c2,d2); XOR(b1,c1); XOR(b2,c2);	\
-	    ROTATE2(b1, b2,  7, tmp1, tmp2);
-
-	.section .text.sse2,"ax",@progbits
-
-chacha20_data:
-	.align 16
-L(counter1):
-	.long 1,0,0,0
-L(inc_counter):
-	.long 0,1,2,3
-L(unsigned_cmp):
-	.long 0x80000000,0x80000000,0x80000000,0x80000000
-
-	.hidden __chacha20_sse2_blocks4
-ENTRY (__chacha20_sse2_blocks4)
-	/* input:
-	 *	%rdi: input
-	 *	%rsi: dst
-	 *	%rdx: src
-	 *	%rcx: nblks (multiple of 4)
-	 */
-
-	pushq %rbp;
-	cfi_adjust_cfa_offset(8);
-	cfi_rel_offset(rbp, 0)
-	movq %rsp, %rbp;
-	cfi_def_cfa_register(%rbp);
-
-	subq $STACK_MAX, %rsp;
-	andq $~15, %rsp;
-
-L(loop4):
-	mov $20, ROUND;
-
-	/* Construct counter vectors X12 and X13 */
-	movdqa L(inc_counter) rRIP, X0;
-	movdqa L(unsigned_cmp) rRIP, X2;
-	PBROADCASTD((12 * 4)(INPUT), X12);
-	PBROADCASTD((13 * 4)(INPUT), X13);
-	paddd X0, X12;
-	movdqa X12, X1;
-	pxor X2, X0;
-	pxor X2, X1;
-	pcmpgtd X1, X0;
-	psubd X0, X13;
-	movdqa X12, (STACK_VEC_X12)(%rsp);
-	movdqa X13, (STACK_VEC_X13)(%rsp);
-
-	/* Load vectors */
-	PBROADCASTD((0 * 4)(INPUT), X0);
-	PBROADCASTD((1 * 4)(INPUT), X1);
-	PBROADCASTD((2 * 4)(INPUT), X2);
-	PBROADCASTD((3 * 4)(INPUT), X3);
-	PBROADCASTD((4 * 4)(INPUT), X4);
-	PBROADCASTD((5 * 4)(INPUT), X5);
-	PBROADCASTD((6 * 4)(INPUT), X6);
-	PBROADCASTD((7 * 4)(INPUT), X7);
-	PBROADCASTD((8 * 4)(INPUT), X8);
-	PBROADCASTD((9 * 4)(INPUT), X9);
-	PBROADCASTD((10 * 4)(INPUT), X10);
-	PBROADCASTD((11 * 4)(INPUT), X11);
-	PBROADCASTD((14 * 4)(INPUT), X14);
-	PBROADCASTD((15 * 4)(INPUT), X15);
-	movdqa X11, (STACK_TMP)(%rsp);
-	movdqa X15, (STACK_TMP1)(%rsp);
-
-L(round2_4):
-	QUARTERROUND2(X0, X4,  X8, X12,   X1, X5,  X9, X13, tmp:=,X11,X15)
-	movdqa (STACK_TMP)(%rsp), X11;
-	movdqa (STACK_TMP1)(%rsp), X15;
-	movdqa X8, (STACK_TMP)(%rsp);
-	movdqa X9, (STACK_TMP1)(%rsp);
-	QUARTERROUND2(X2, X6, X10, X14,   X3, X7, X11, X15, tmp:=,X8,X9)
-	QUARTERROUND2(X0, X5, X10, X15,   X1, X6, X11, X12, tmp:=,X8,X9)
-	movdqa (STACK_TMP)(%rsp), X8;
-	movdqa (STACK_TMP1)(%rsp), X9;
-	movdqa X11, (STACK_TMP)(%rsp);
-	movdqa X15, (STACK_TMP1)(%rsp);
-	QUARTERROUND2(X2, X7,  X8, X13,   X3, X4,  X9, X14, tmp:=,X11,X15)
-	sub $2, ROUND;
-	jnz L(round2_4);
-
-	/* tmp := X15 */
-	movdqa (STACK_TMP)(%rsp), X11;
-	PBROADCASTD((0 * 4)(INPUT), X15);
-	PLUS(X0, X15);
-	PBROADCASTD((1 * 4)(INPUT), X15);
-	PLUS(X1, X15);
-	PBROADCASTD((2 * 4)(INPUT), X15);
-	PLUS(X2, X15);
-	PBROADCASTD((3 * 4)(INPUT), X15);
-	PLUS(X3, X15);
-	PBROADCASTD((4 * 4)(INPUT), X15);
-	PLUS(X4, X15);
-	PBROADCASTD((5 * 4)(INPUT), X15);
-	PLUS(X5, X15);
-	PBROADCASTD((6 * 4)(INPUT), X15);
-	PLUS(X6, X15);
-	PBROADCASTD((7 * 4)(INPUT), X15);
-	PLUS(X7, X15);
-	PBROADCASTD((8 * 4)(INPUT), X15);
-	PLUS(X8, X15);
-	PBROADCASTD((9 * 4)(INPUT), X15);
-	PLUS(X9, X15);
-	PBROADCASTD((10 * 4)(INPUT), X15);
-	PLUS(X10, X15);
-	PBROADCASTD((11 * 4)(INPUT), X15);
-	PLUS(X11, X15);
-	movdqa (STACK_VEC_X12)(%rsp), X15;
-	PLUS(X12, X15);
-	movdqa (STACK_VEC_X13)(%rsp), X15;
-	PLUS(X13, X15);
-	movdqa X13, (STACK_TMP)(%rsp);
-	PBROADCASTD((14 * 4)(INPUT), X15);
-	PLUS(X14, X15);
-	movdqa (STACK_TMP1)(%rsp), X15;
-	movdqa X14, (STACK_TMP1)(%rsp);
-	PBROADCASTD((15 * 4)(INPUT), X13);
-	PLUS(X15, X13);
-	movdqa X15, (STACK_TMP2)(%rsp);
-
-	/* Update counter */
-	addq $4, (12 * 4)(INPUT);
-
-	TRANSPOSE_4x4(X0, X1, X2, X3, X13, X14, X15);
-	movdqu X0, (64 * 0 + 16 * 0)(DST)
-	movdqu X1, (64 * 1 + 16 * 0)(DST)
-	movdqu X2, (64 * 2 + 16 * 0)(DST)
-	movdqu X3, (64 * 3 + 16 * 0)(DST)
-	TRANSPOSE_4x4(X4, X5, X6, X7, X0, X1, X2);
-	movdqa (STACK_TMP)(%rsp), X13;
-	movdqa (STACK_TMP1)(%rsp), X14;
-	movdqa (STACK_TMP2)(%rsp), X15;
-	movdqu X4, (64 * 0 + 16 * 1)(DST)
-	movdqu X5, (64 * 1 + 16 * 1)(DST)
-	movdqu X6, (64 * 2 + 16 * 1)(DST)
-	movdqu X7, (64 * 3 + 16 * 1)(DST)
-	TRANSPOSE_4x4(X8, X9, X10, X11, X0, X1, X2);
-	movdqu X8,  (64 * 0 + 16 * 2)(DST)
-	movdqu X9,  (64 * 1 + 16 * 2)(DST)
-	movdqu X10, (64 * 2 + 16 * 2)(DST)
-	movdqu X11, (64 * 3 + 16 * 2)(DST)
-	TRANSPOSE_4x4(X12, X13, X14, X15, X0, X1, X2);
-	movdqu X12, (64 * 0 + 16 * 3)(DST)
-	movdqu X13, (64 * 1 + 16 * 3)(DST)
-	movdqu X14, (64 * 2 + 16 * 3)(DST)
-	movdqu X15, (64 * 3 + 16 * 3)(DST)
-
-	sub $4, NBLKS;
-	lea (4 * 64)(DST), DST;
-	lea (4 * 64)(SRC), SRC;
-	jnz L(loop4);
-
-	/* eax zeroed by round loop. */
-	leave;
-	cfi_adjust_cfa_offset(-8)
-	cfi_def_cfa_register(%rsp);
-	ret_spec_stop;
-END (__chacha20_sse2_blocks4)
-
-#endif /* if MINIMUM_X86_ISA_LEVEL <= 2 */
diff --git a/sysdeps/x86_64/chacha20_arch.h b/sysdeps/x86_64/chacha20_arch.h
deleted file mode 100644
index 6f3784e392..0000000000
--- a/sysdeps/x86_64/chacha20_arch.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/* Chacha20 implementation, used on arc4random.
-   Copyright (C) 2022 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   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 published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#include <isa-level.h>
-#include <ldsodefs.h>
-#include <cpu-features.h>
-#include <sys/param.h>
-
-unsigned int __chacha20_sse2_blocks4 (uint32_t *state, uint8_t *dst,
-				      const uint8_t *src, size_t nblks)
-     attribute_hidden;
-unsigned int __chacha20_avx2_blocks8 (uint32_t *state, uint8_t *dst,
-				      const uint8_t *src, size_t nblks)
-     attribute_hidden;
-
-static inline void
-chacha20_crypt (uint32_t *state, uint8_t *dst, const uint8_t *src,
-		size_t bytes)
-{
-  _Static_assert (CHACHA20_BUFSIZE % 4 == 0 && CHACHA20_BUFSIZE % 8 == 0,
-		  "CHACHA20_BUFSIZE not multiple of 4 or 8");
-  _Static_assert (CHACHA20_BUFSIZE >= CHACHA20_BLOCK_SIZE * 8,
-		  "CHACHA20_BUFSIZE < CHACHA20_BLOCK_SIZE * 8");
-
-#if MINIMUM_X86_ISA_LEVEL > 2
-  __chacha20_avx2_blocks8 (state, dst, src,
-			   CHACHA20_BUFSIZE / CHACHA20_BLOCK_SIZE);
-#else
-  const struct cpu_features* cpu_features = __get_cpu_features ();
-
-  /* AVX2 version uses vzeroupper, so disable it if RTM is enabled.  */
-  if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX2)
-      && X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, Prefer_No_VZEROUPPER, !))
-    __chacha20_avx2_blocks8 (state, dst, src,
-			     CHACHA20_BUFSIZE / CHACHA20_BLOCK_SIZE);
-  else
-    __chacha20_sse2_blocks4 (state, dst, src,
-			     CHACHA20_BUFSIZE / CHACHA20_BLOCK_SIZE);
-#endif
-}
