update to glibc-2.28-151.el8.src.rpm

Signed-off-by: Liwei Ge <geliwei@openanolis.org>

glibc-rh1817513-99.patch

@@ -0,0 +1,94 @@
+commit 647103ea3a2aae2e6791b3bebe9e33eedc168102
+Author: Florian Weimer <fweimer@redhat.com>
+Date:   Fri Oct 9 10:13:14 2020 +0200
+
+    elf: Enhance ld.so --help to print HWCAP subdirectories
+    
+    Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
+
+diff --git a/elf/dl-usage.c b/elf/dl-usage.c
+index 8d39bc9d5442bc59..c07f43835bd771cf 100644
+--- a/elf/dl-usage.c
++++ b/elf/dl-usage.c
+@@ -22,6 +22,8 @@
+ #include <unistd.h>
+ #include "version.h"
+ 
++#include <dl-hwcaps.h>
++
+ void
+ _dl_usage (const char *argv0, const char *wrong_option)
+ {
+@@ -101,6 +103,65 @@ print_search_path_for_help (struct dl_main_state *state)
+   print_search_path_for_help_1 (__rtld_search_dirs.dirs);
+ }
+ 
++/* Helper function for printing flags associated with a HWCAP name.  */
++static void
++print_hwcap_1 (bool *first, bool active, const char *label)
++{
++  if (active)
++    {
++      if (*first)
++        {
++          _dl_printf (" (");
++          *first = false;
++        }
++      else
++        _dl_printf (", ");
++      _dl_printf ("%s", label);
++    }
++}
++
++/* Called after a series of print_hwcap_1 calls to emit the line
++   terminator.  */
++static void
++print_hwcap_1_finish (bool *first)
++{
++  if (*first)
++    _dl_printf ("\n");
++  else
++    _dl_printf (")\n");
++}
++
++/* Write a list of hwcap subdirectories to standard output.  See
++ _dl_important_hwcaps in dl-hwcaps.c.  */
++static void
++print_legacy_hwcap_directories (void)
++{
++  _dl_printf ("\n\
++Legacy HWCAP subdirectories under library search path directories:\n");
++
++  const char *platform = GLRO (dl_platform);
++  if (platform != NULL)
++    _dl_printf ("  %s (AT_PLATFORM; supported, searched)\n", platform);
++
++  _dl_printf ("  tls (supported, searched)\n");
++
++  uint64_t hwcap_mask = GET_HWCAP_MASK();
++  uint64_t searched = GLRO (dl_hwcap) & hwcap_mask;
++  for (int n = 63; n >= 0; --n)
++    {
++      uint64_t bit = 1ULL << n;
++      if (HWCAP_IMPORTANT & bit)
++        {
++          _dl_printf ("  %s", _dl_hwcap_string (n));
++          bool first = true;
++          print_hwcap_1 (&first, GLRO (dl_hwcap) & bit, "supported");
++          print_hwcap_1 (&first, !(hwcap_mask & bit), "masked");
++          print_hwcap_1 (&first, searched & bit, "searched");
++          print_hwcap_1_finish (&first);
++        }
++    }
++}
++
+ void
+ _dl_help (const char *argv0, struct dl_main_state *state)
+ {
+@@ -136,5 +197,6 @@ This program interpreter self-identifies as: " RTLD "\n\
+ ",
+               argv0);
+   print_search_path_for_help (state);
++  print_legacy_hwcap_directories ();
+   _exit (EXIT_SUCCESS);
+ }