Update.

1999-02-20  Ulrich Drepper  <drepper@cygnus.com>

	* elf/dynamic-link.h (elf_get_dynamic_info): Use memset instead of
	loop to clear `info'.

	* sysdeps/i386/i486/bits/string.h: If fill byte is constant let gcc
	do the work and don't use inline assembler.

diff --git a/ChangeLog b/ChangeLog
index fe594d9..fe60d73 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+1999-02-20  Ulrich Drepper  <drepper@cygnus.com>
+
+       * elf/dynamic-link.h (elf_get_dynamic_info): Use memset instead of
+       loop to clear `info'.
+
+       * sysdeps/i386/i486/bits/string.h: If fill byte is constant let gcc
+       do the work and don't use inline assembler.
+
 1999-02-19  Ulrich Drepper  <drepper@cygnus.com>
 
        * elf/ldsodefs.h (_dl_signal_error): Mark as __noreturn__.

diff --git a/elf/dynamic-link.h b/elf/dynamic-link.h
index 89e15a4..3d96ecc 100644 (file)
--- a/elf/dynamic-link.h
+++ b/elf/dynamic-link.h
@@ -1,5 +1,5 @@
 /* Inline functions for dynamic linking.
-   Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1995, 1996, 1997, 1998, 1999 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
@@ -34,10 +34,8 @@ elf_get_dynamic_info (ElfW(Dyn) *dyn,
                      ElfW(Dyn) *info[DT_NUM + DT_PROCNUM + DT_VERSIONTAGNUM
                                     + DT_EXTRANUM])
 {
-  unsigned int i;
-
-  for (i = 0; i < DT_NUM + DT_PROCNUM + DT_VERSIONTAGNUM + DT_EXTRANUM; ++i)
-    info[i] = NULL;
+  memset (info, '\0', ((DT_NUM + DT_PROCNUM + DT_VERSIONTAGNUM + DT_EXTRANUM)
+                      * sizeof (ElfW(Dyn) *)));
 
   if (! dyn)
     return;

diff --git a/sysdeps/i386/i486/bits/string.h b/sysdeps/i386/i486/bits/string.h
index 84421b4..6e5c3fe 100644 (file)
--- a/sysdeps/i386/i486/bits/string.h
+++ b/sysdeps/i386/i486/bits/string.h
@@ -190,20 +190,10 @@ memcmp (__const void *__s1, __const void *__s2, size_t __n)
 #define _HAVE_STRING_ARCH_memset 1
 #define memset(s, c, n) \
   (__extension__ (__builtin_constant_p (c)                                   \
-                 ? (__builtin_constant_p (n)                                 \
-                    ? __memset_cc (s, c, n)                                  \
-                    : __memset_cg (s, c, n))                                 \
+                 ? memset (s, c, n)                                          \
                  : (__builtin_constant_p (n)                                 \
                     ? __memset_gc (s, c, n)                                  \
                     : __memset_gg (s, c, n))))
-#define __memset_cc(s, c, n) \
-  ((n) == 0                                                                  \
-   ? (s)                                                                     \
-   : (((n) % 4 == 0)                                                         \
-      ? __memset_cc_by4 (s, c, n)                                            \
-      : (((n) % 2== 0)                                                       \
-        ? __memset_cc_by2 (s, c, n)                                          \
-        : __memset_cg (s, c, n))))
 #define __memset_gc(s, c, n) \
   ((n) == 0                                                                  \
    ? (s)                                                                     \
@@ -213,48 +203,6 @@ memcmp (__const void *__s1, __const void *__s2, size_t __n)
         ? __memset_gc_by2 (s, c, n)                                          \
         : __memset_gg (s, c, n))))
 
-__STRING_INLINE void *__memset_cc_by4 (void *__s, int __c, size_t __n);
-
-__STRING_INLINE void *
-__memset_cc_by4 (void *__s, int __c, size_t __n)
-{
-  register unsigned long int __d0;
-  register char *__tmp = __s;
-  __asm__ __volatile__
-    ("1:\n\t"
-     "movl     %2,(%0)\n\t"
-     "leal     4(%0),%0\n\t"
-     "decl     %1\n\t"
-     "jnz      1b"
-     : "=&r" (__tmp), "=&r" (__d0)
-     : "q" (0x01010101UL * (unsigned char) __c), "0" (__tmp), "1" (__n / 4)
-     : "memory", "cc");
-  return __s;
-}
-
-__STRING_INLINE void *__memset_cc_by2 (void *__s, int __c, size_t __n);
-
-__STRING_INLINE void *
-__memset_cc_by2 (void *__s, int __c, size_t __n)
-{
-  register unsigned long int __d0;
-  register void *__tmp = __s;
-  __asm__ __volatile__
-    ("shrl     $1,%1\n\t"      /* may be divisible also by 4 */
-     "jz       2f\n"
-     "1:\n\t"
-     "movl     %2,(%0)\n\t"
-     "leal     4(%0),%0\n\t"
-     "decl     %1\n\t"
-     "jnz      1b\n"
-     "2:\n\t"
-     "movw     %w2,(%0)"
-     : "=&r" (__tmp), "=&r" (__d0)
-     : "q" (0x01010101UL * (unsigned char) __c), "0" (__tmp), "1" (__n / 2)
-     : "memory", "cc");
-  return __s;
-}
-
 __STRING_INLINE void *__memset_gc_by4 (void *__s, int __c, size_t __n);
 
 __STRING_INLINE void *
@@ -305,25 +253,6 @@ __memset_gc_by2 (void *__s, int __c, size_t __n)
   return __s;
 }
 
-__STRING_INLINE void *__memset_cg (void *__s, int __c, size_t __n);
-
-__STRING_INLINE void *
-__memset_cg (void *__s, int __c, size_t __n)
-{
-  register unsigned long __d0, __d1;
-  register void *__tmp = __s;
-  __asm__ __volatile__
-    ("shrl     $1,%%ecx\n\t"
-     "rep; stosw\n\t"
-     "jnc      1f\n\t"
-     "movb     %%al,(%%edi)\n"
-     "1:"
-     : "=&c" (__d0), "=&D" (__d1)
-     : "0" (__n), "1" (__tmp), "a" (0x0101U * (unsigned char) __c)
-     : "memory", "cc");
-  return __s;
-}
-
 __STRING_INLINE void *__memset_gg (void *__s, int __c, size_t __n);
 
 __STRING_INLINE void *