Remove __get_clockfreq

With clock_getres, clock_gettime, and clock_settime refactor to remove the
generic CLOCK_PROCESS_CPUTIME_ID and CLOCK_THREAD_CPUTIME_ID support through
hp-timing, there is no usage of internal __get_clockfreq.  This patch removes
both generic and Linux implementation..

Checked with a build against aarch64-linux-gnu, i686-linux-gnu, ia64-linux-gnu,
sparc64-linux-gnu, powerpc-linux-gnu-power4.

	* include/libc-internal.h (__get_clockfreq): Remove prototype.
	* rt/Makefile (clock-routines): Remove get_clockfreq.
	* rt/get_clockfreq.c: Remove file.
	* sysdeps/unix/sysv/linux/i386/get_clockfreq.c: Likewise.
	* sysdeps/unix/sysv/linux/ia64/get_clockfreq.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/get_clockfreq.c: Move code to ...
	* sysdeps/unix/sysv/linux/powerpc/get_timebase_freq.c: ... here.

1 files changed, 0 insertions, 250 deletions

diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c b/sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c
deleted file mode 100644
index 8c308f5983..0000000000
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c
+++ /dev/null
@@ -1,250 +0,0 @@
-/* Get frequency of the system processor.  sparc64 version.
-   Copyright (C) 2001-2019 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
-   <http://www.gnu.org/licenses/>.  */
-
-#include <ctype.h>
-#include <fcntl.h>
-#include <string.h>
-#include <unistd.h>
-#include <dirent.h>
-#include <stdlib.h>
-#include <inttypes.h>
-#include <sys/ioctl.h>
-#include <asm/openpromio.h>
-
-static hp_timing_t
-__get_clockfreq_via_cpuinfo (void)
-{
-  hp_timing_t result;
-  int fd;
-
-  result = 0;
-
-  fd = __open ("/proc/cpuinfo", O_RDONLY);
-  if (fd != -1)
-    {
-      char buf[8192];
-      ssize_t n;
-
-      n = __read (fd, buf, sizeof buf);
-      if (n > 0)
-	{
-	  char *mhz = memmem (buf, n, "Cpu0ClkTck", 7);
-
-	  if (mhz != NULL)
-	    {
-	      char *endp = buf + n;
-
-	      /* Search for the beginning of the string.  */
-	      while (mhz < endp
-		     && (*mhz < '0' || *mhz > '9')
-		     && (*mhz < 'a' || *mhz > 'f')
-		     && *mhz != '\n')
-		++mhz;
-
-	      while (mhz < endp && *mhz != '\n')
-		{
-		  if ((*mhz >= '0' && *mhz <= '9')
-		      || (*mhz >= 'a' && *mhz <= 'f'))
-		    {
-		      result <<= 4;
-		      if (*mhz >= '0' && *mhz <= '9')
-			result += *mhz - '0';
-		      else
-			result += (*mhz - 'a') + 10;
-		    }
-		  ++mhz;
-		}
-	    }
-	}
-
-      __close (fd);
-    }
-
-  return result;
-}
-
-static hp_timing_t
-__get_clockfreq_via_proc_openprom (void)
-{
-  hp_timing_t result;
-  int obp_fd;
-
-  result = 0;
-
-  obp_fd = __open ("/proc/openprom", O_RDONLY);
-  if (obp_fd != -1)
-    {
-      unsigned long int buf[4096 / sizeof (unsigned long int)];
-      struct dirent64 *dirp = (struct dirent64 *) buf;
-      ssize_t len;
-
-      while ((len = __getdents64 (obp_fd, (char *) dirp, sizeof (buf))) > 0)
-	{
-	  struct dirent64 *this_dirp = dirp;
-
-	  while (len > 0)
-	    {
-	      char node[strlen ("/proc/openprom/")
-			+ _D_ALLOC_NAMLEN (this_dirp)
-			+ strlen ("/clock-frequency")];
-	      char *prop;
-	      int fd;
-
-	      /* Note that
-		   strlen("/clock-frequency") > strlen("/device_type")
-	      */
-	      __stpcpy (prop = __stpcpy (__stpcpy (node, "/proc/openprom/"),
-					 this_dirp->d_name),
-			"/device_type");
-	      fd = __open (node, O_RDONLY);
-	      if (fd != -1)
-		{
-		  char type_string[128];
-		  int ret;
-
-		  ret = __read (fd, type_string, sizeof (type_string));
-		  if (ret > 0 && strncmp (type_string, "'cpu'", 5) == 0)
-		    {
-		      int clkfreq_fd;
-
-		      __stpcpy (prop, "/clock-frequency");
-		      clkfreq_fd = __open (node, O_RDONLY);
-		      if (clkfreq_fd != -1)
-			{
-			  if (__read (clkfreq_fd, type_string,
-				      sizeof (type_string)) > 0)
-			    result = (hp_timing_t)
-			      strtoumax (type_string, NULL, 16);
-			  __close (clkfreq_fd);
-			}
-		    }
-		  __close (fd);
-		}
-
-	      if (result != 0)
-		break;
-
-	      len -= this_dirp->d_reclen;
-	      this_dirp = (struct dirent64 *)
-		((char *) this_dirp + this_dirp->d_reclen);
-	    }
-	  if (result != 0)
-	    break;
-	}
-      __close (obp_fd);
-    }
-
-  return result;
-}
-
-static void set_obp_int (struct openpromio *op, int val)
-{
-  char *cp = op->oprom_array;
-  int *ip = (int *) cp;
-
-  *ip = val;
-}
-
-static int get_obp_int (struct openpromio *op)
-{
-  char *cp = op->oprom_array;
-  int *ip = (int *) cp;
-
-  return *ip;
-}
-
-static hp_timing_t
-__get_clockfreq_via_dev_openprom (void)
-{
-  hp_timing_t result;
-  int obp_dev_fd;
-
-  result = 0;
-
-  obp_dev_fd = __open ("/dev/openprom", O_RDONLY);
-  if (obp_dev_fd != -1)
-    {
-      char obp_buf[8192];
-      struct openpromio *obp_cmd = (struct openpromio *)obp_buf;
-      int ret;
-
-      obp_cmd->oprom_size =
-	sizeof (obp_buf) - sizeof (unsigned int);
-      set_obp_int (obp_cmd, 0);
-      ret = __ioctl (obp_dev_fd, OPROMCHILD, (char *) obp_cmd);
-      if (ret == 0)
-	{
-	  int cur_node = get_obp_int (obp_cmd);
-
-	  while (cur_node != 0 && cur_node != -1)
-	    {
-	      obp_cmd->oprom_size = sizeof (obp_buf) - sizeof (unsigned int);
-	      strcpy (obp_cmd->oprom_array, "device_type");
-	      ret = __ioctl (obp_dev_fd, OPROMGETPROP, (char *) obp_cmd);
-	      if (ret == 0
-		  && strncmp (obp_cmd->oprom_array, "cpu", 3) == 0)
-		{
-		  obp_cmd->oprom_size = (sizeof (obp_buf)
-					 - sizeof (unsigned int));
-		  strcpy (obp_cmd->oprom_array, "clock-frequency");
-		  ret = __ioctl (obp_dev_fd, OPROMGETPROP, (char *) obp_cmd);
-		  if (ret == 0)
-		    result = (hp_timing_t) get_obp_int (obp_cmd);
-		}
-	      obp_cmd->oprom_size = sizeof (obp_buf) - sizeof (unsigned int);
-	      set_obp_int (obp_cmd, cur_node);
-	      ret = __ioctl (obp_dev_fd, OPROMNEXT, (char *) obp_cmd);
-	      if (ret < 0)
-		break;
-	      cur_node = get_obp_int (obp_cmd);
-	    }
-	}
-    }
-
-  return result;
-}
-
-hp_timing_t
-__get_clockfreq (void)
-{
-  static hp_timing_t result;
-
-  /* If this function was called before, we know the result.  */
-  if (result != 0)
-    return result;
-
-  /* We first read the information from the /proc/cpuinfo file.
-     It contains at least one line like
-	Cpu0ClkTick         : 000000002cb41780
-     We search for this line and convert the number in an integer.  */
-  result = __get_clockfreq_via_cpuinfo ();
-  if (result != 0)
-    return result;
-
-  /* If that did not work, try to find an OpenPROM node
-     with device_type equal to 'cpu' using /dev/openprom
-     and fetch the clock-frequency property from there.  */
-  result = __get_clockfreq_via_dev_openprom ();
-  if (result != 0)
-    return result;
-
-  /* Finally, try the same lookup as above but using /proc/openprom.  */
-  result = __get_clockfreq_via_proc_openprom ();
-
-  return result;
-}