Update.

1999-04-28  Ulrich Drepper  <drepper@cygnus.com>

	* manager.c (pthread_allocate_stack): Optimize initialization of new
	thread descriptor.

30 files changed, 197 insertions, 231 deletions

diff --git a/argp/argp-ba.c b/argp/argp-ba.c
index 5d58cc6c51..5657c2748e 100644
--- a/argp/argp-ba.c
+++ b/argp/argp-ba.c
@@ -1,5 +1,5 @@
 /* Default definition for ARGP_PROGRAM_BUG_ADDRESS.
-   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 
@@ -23,4 +23,4 @@
    the ARGP_HELP_BUG_ADDR flag is set (as it is by various standard help
    messages), embedded in a sentence that says something like `Report bugs to
    ADDR.'.  */
-const char *argp_program_bug_address = 0;
+const char *argp_program_bug_address;
diff --git a/argp/argp-help.c b/argp/argp-help.c
index d78060d12c..f5d96fb1ef 100644
--- a/argp/argp-help.c
+++ b/argp/argp-help.c
@@ -1376,19 +1376,17 @@ argp_args_usage (const struct argp *argp, const struct argp_state *state,
   if (fdoc)
     {
       const char *cp = fdoc;
-      nl = strchr (cp, '\n');
-      if (nl)
+      nl = __strchrnul (cp, '\n');
+      if (*nl != '\0')
 	/* This is a `multi-level' args doc; advance to the correct position
 	   as determined by our state in LEVELS, and update LEVELS.  */
 	{
 	  int i;
 	  multiple = 1;
 	  for (i = 0; i < *our_level; i++)
-	    cp = nl + 1, nl = strchr (cp, '\n');
+	    cp = nl + 1, nl = __strchrnul (cp, '\n');
 	  (*levels)++;
 	}
-      if (! nl)
-	nl = cp + strlen (cp);
 
       /* Manually do line wrapping so that it (probably) won't get wrapped at
 	 any embedded spaces.  */
diff --git a/argp/argp-parse.c b/argp/argp-parse.c
index e59f614a05..758129aab1 100644
--- a/argp/argp-parse.c
+++ b/argp/argp-parse.c
@@ -1,5 +1,5 @@
 /* Hierarchial argument parsing, layered over getopt
-   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.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 
@@ -76,7 +76,7 @@
    for one second intervals, decrementing _ARGP_HANG until it's zero.  Thus
    you can force the program to continue by attaching a debugger and setting
    it to 0 yourself.  */
-volatile int _argp_hang = 0;
+volatile int _argp_hang;
 
 #define OPT_PROGNAME	-2
 #define OPT_USAGE	-3
diff --git a/argp/argp-pv.c b/argp/argp-pv.c
index 27d714b361..506107436b 100644
--- a/argp/argp-pv.c
+++ b/argp/argp-pv.c
@@ -1,5 +1,5 @@
 /* Default definition for ARGP_PROGRAM_VERSION.
-   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 
@@ -22,4 +22,4 @@
    --version is added (unless the ARGP_NO_HELP flag is used), which will
    print this this string followed by a newline and exit (unless the
    ARGP_NO_EXIT flag is used).  Overridden by ARGP_PROGRAM_VERSION_HOOK.  */
-const char *argp_program_version = 0;
+const char *argp_program_version;
diff --git a/argp/argp-pvh.c b/argp/argp-pvh.c
index ed60aa992d..2d0bd39576 100644
--- a/argp/argp-pvh.c
+++ b/argp/argp-pvh.c
@@ -1,5 +1,5 @@
 /* Default definition for ARGP_PROGRAM_VERSION_HOOK.
-   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 
@@ -29,4 +29,4 @@
    this function with a stream to print the version to and a pointer to the
    current parsing state, and then exits (unless the ARGP_NO_EXIT flag is
    used).  This variable takes precedent over ARGP_PROGRAM_VERSION.  */
-void (*argp_program_version_hook) (FILE *stream, struct argp_state *state) = 0;
+void (*argp_program_version_hook) (FILE *stream, struct argp_state *state);
diff --git a/catgets/catgets.c b/catgets/catgets.c
index 55de30ee46..c6fd13d4b4 100644
--- a/catgets/catgets.c
+++ b/catgets/catgets.c
@@ -33,23 +33,12 @@ nl_catd
 catopen (const char *cat_name, int flag)
 {
   __nl_catd result;
-  const char *env_var;
-  const char *nlspath;
-
-  result = (__nl_catd) malloc (sizeof (*result));
-  if (result == NULL)
-    /* We cannot get enough memory.  */
-    return (nl_catd) -1;
-
-  result->status = closed;
-
-  result->cat_name = __strdup (cat_name);
-  if (result->cat_name == NULL)
-    {
-      free (result);
-      __set_errno (ENOMEM);
-      return (nl_catd) -1;
-    }
+  const char *env_var = NULL;
+  const char *nlspath = NULL;
+  size_t cat_name_len = strlen (cat_name) + 1;
+  size_t env_var_len = 0;
+  size_t nlspath_len = 0;
+  char *endp;
 
   if (strchr (cat_name, '/') == NULL)
     {
@@ -57,32 +46,19 @@ catopen (const char *cat_name, int flag)
 	{
 	  env_var = getenv ("LC_ALL");
 	  if (env_var == NULL)
-	    {
-	      env_var = getenv ("LC_MESSAGES");
-	      if (env_var == NULL)
-		{
-		  env_var = getenv ("LANG");
-		  if (env_var == NULL)
-		    env_var = "C";
-		}
-	    }
-	}
-      else
-	{
-	  env_var = getenv ("LANG");
-	  if (env_var == NULL)
-	    env_var = "C";
-	}
+	    env_var = getenv ("LC_MESSAGES");
 
-      result->env_var = __strdup (env_var);
-      if (result->env_var == NULL)
-	{
-	  free ((void *) result->cat_name);
-	  free ((void *) result);
-	  __set_errno (ENOMEM);
-	  return (nl_catd) -1;
+	  if (env_var != NULL)
+	    goto have_env_var;
 	}
 
+      env_var = getenv ("LANG");
+      if (env_var == NULL)
+	env_var = "C";
+
+    have_env_var:
+      env_var_len = strlen (env_var) + 1;
+
       nlspath = __secure_getenv ("NLSPATH");
       if (nlspath != NULL && *nlspath != '\0')
 	{
@@ -92,25 +68,32 @@ catopen (const char *cat_name, int flag)
 
 	  __stpcpy (__stpcpy (__stpcpy (tmp, nlspath), ":"), NLSPATH);
 	  nlspath = tmp;
+
+	  nlspath_len = len;
 	}
       else
-	nlspath = NLSPATH;
-
-      result->nlspath = __strdup (nlspath);
-      if (result->nlspath == NULL)
 	{
-	  free ((void *) result->cat_name);
-	  free ((void *) result->env_var);
-	  free ((void *) result);
-	  __set_errno (ENOMEM);
-	  return (nl_catd) -1;
+	  nlspath = NLSPATH;
+
+	  nlspath_len = sizeof NLSPATH;
 	}
     }
-  else
-    {
-      result->env_var = NULL;
-      result->nlspath = NULL;
-    }
+
+  result = (__nl_catd) malloc (sizeof (*result) + cat_name_len
+			       + env_var_len + nlspath_len);
+  if (result == NULL)
+    /* We cannot get enough memory.  */
+    return (nl_catd) -1;
+
+  result->status = closed;
+  result->cat_name = endp = (char *) (result + 1);
+  endp = __mempcpy (endp, cat_name, cat_name_len);
+
+  result->env_var = cat_name_len != 0 ? endp : NULL;
+  endp = __mempcpy (endp, env_var, env_var_len);
+
+  result->nlspath = nlspath_len != 0 ? endp : NULL;
+  memcpy (endp, nlspath, nlspath_len);
 
   __libc_lock_init (result->lock);
 
@@ -179,10 +162,6 @@ catclose (nl_catd catalog_desc)
 	return -1;
       }
 
-  if (catalog->nlspath)
-    free ((void *) catalog->nlspath);
-  if (catalog->env_var)
-    free ((void *) catalog->env_var);
   free ((void *) catalog);
 
   return 0;
diff --git a/catgets/open_catalog.c b/catgets/open_catalog.c
index e4b61d779a..4b619e49e9 100644
--- a/catgets/open_catalog.c
+++ b/catgets/open_catalog.c
@@ -1,6 +1,6 @@
-/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>.
+   Contributed by Ulrich Drepper, <drepper@gnu.org>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public License as
@@ -182,10 +182,13 @@ __open_catalog (__nl_catd catalog)
     }
 
   /* Avoid dealing with directories and block devices */
-  if (fd < 0 || __fstat (fd, &st) < 0)
+  if (fd < 0)
+    goto unlock_return;
+
+  if (__fxstat (_STAT_VER, fd, &st) < 0)
     {
       catalog->status = nonexisting;
-      goto unlock_return;
+      goto close_unlock_return;
     }
   if (!S_ISREG (st.st_mode) || st.st_size < sizeof (struct catalog_obj))
     {
@@ -193,7 +196,7 @@ __open_catalog (__nl_catd catalog)
 	 Use an reasonable error value.  */
       __set_errno (EINVAL);
       catalog->status = nonexisting;
-      goto unlock_return;
+      goto close_unlock_return;
     }
 
   catalog->file_size = st.st_size;
@@ -226,7 +229,7 @@ __open_catalog (__nl_catd catalog)
       if (catalog->file_ptr == NULL)
 	{
 	  catalog->status = nonexisting;
-	  goto unlock_return;
+	  goto close_unlock_return;
 	}
       todo = st.st_size;
       /* Save read, handle partial reads.  */
@@ -238,7 +241,7 @@ __open_catalog (__nl_catd catalog)
 	    {
 	      free ((void *) catalog->file_ptr);
 	      catalog->status = nonexisting;
-	      goto unlock_return;
+	      goto close_unlock_return;
 	    }
 	  todo -= now;
 	}
@@ -246,10 +249,6 @@ __open_catalog (__nl_catd catalog)
       catalog->status = malloced;
     }
 
-  /* We don't need the file anymore.  */
-  __close (fd);
-  fd = -1;
-
   /* Determine whether the file is a catalog file and if yes whether
      it is written using the correct byte order.  Else we have to swap
      the values.  */
@@ -269,7 +268,7 @@ __open_catalog (__nl_catd catalog)
 #endif	/* _POSIX_MAPPED_FILES */
 	free (catalog->file_ptr);
       catalog->status = nonexisting;
-      goto unlock_return;
+      goto close_unlock_return;
     }
 
 #define SWAP(x) (swapping ? SWAPU32 (x) : (x))
@@ -320,8 +319,8 @@ __open_catalog (__nl_catd catalog)
     }
 
   /* Release the lock again.  */
+ close_unlock_return:
+  __close (fd);
  unlock_return:
-  if (fd != -1)
-    __close (fd);
   __libc_lock_unlock (catalog->lock);
 }
diff --git a/ctype/ctype-extn.c b/ctype/ctype-extn.c
index 5daba66804..cfc8b87d41 100644
--- a/ctype/ctype-extn.c
+++ b/ctype/ctype-extn.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1997, 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
@@ -22,20 +22,21 @@
 /* Real function versions of the non-ANSI ctype functions.  */
 
 int
-isblank (int c)
+__isblank (int c)
 {
   return __isctype (c, _ISblank);
 }
+weak_alias (__isblank, isblank)
 
 int
 _tolower (int c)
 {
-  return c < -128 || c > 255 ? c : __ctype_tolower[c];
+  return __ctype_tolower[c];
 }
 int
 _toupper (int c)
 {
-  return c < -128 || c > 255 ? c : __ctype_toupper[c];
+  return __ctype_toupper[c];
 }
 
 int
@@ -43,11 +44,14 @@ toascii (int c)
 {
   return __toascii (c);
 }
+weak_alias (toascii, __toascii_l)
+
 int
 isascii (int c)
 {
   return __isascii (c);
 }
+weak_alias (isascii, __isascii_l)
 
 
 int
@@ -55,14 +59,3 @@ __isblank_l (int c, __locale_t l)
 {
   return __isctype_l (c, _ISblank, l);
 }
-
-int
-__toascii_l (int c, __locale_t l)
-{
-  return __toascii (c);
-}
-int
-__isascii_l (int c, __locale_t l)
-{
-  return __isascii (c);
-}
diff --git a/grp/initgroups.c b/grp/initgroups.c
index 93f78eb547..0296625122 100644
--- a/grp/initgroups.c
+++ b/grp/initgroups.c
@@ -52,7 +52,7 @@ static enum nss_status
 compat_call (service_user *nip, const char *user, gid_t group, long int *start,
 	     long int *size, gid_t *groups, long int limit, int *errnop)
 {
-  struct group grpbuf, *g;
+  struct group grpbuf;
   size_t buflen = __sysconf (_SC_GETPW_R_SIZE_MAX);
   char *tmpbuf;
   enum nss_status status;
@@ -90,25 +90,24 @@ compat_call (service_user *nip, const char *user, gid_t group, long int *start,
       if (status != NSS_STATUS_SUCCESS)
         goto done;
 
-      g = &grpbuf;
-      if (g->gr_gid != group)
+      if (grpbuf.gr_gid != group)
         {
           char **m;
 
-          for (m = g->gr_mem; *m != NULL; ++m)
+          for (m = grpbuf.gr_mem; *m != NULL; ++m)
             if (strcmp (*m, user) == 0)
               {
                 /* Matches user.  Insert this group.  */
                 if (*start == *size && limit <= 0)
                   {
                     /* Need a bigger buffer.  */
-                    groups = realloc (groups, *size * sizeof (*groups));
+                    groups = realloc (groups, 2 * *size * sizeof (*groups));
                     if (groups == NULL)
                       goto done;
                     *size *= 2;
                   }
 
-                groups[*start] = g->gr_gid;
+                groups[*start] = grpbuf.gr_gid;
                 *start += 1;
 
                 if (*start == limit)
@@ -196,7 +195,7 @@ initgroups (user, group)
 
       /* This is really only for debugging.  */
       if (NSS_STATUS_TRYAGAIN > status || status > NSS_STATUS_RETURN)
-	 __libc_fatal ("illegal status in " __FUNCTION__);
+	__libc_fatal ("illegal status in " __FUNCTION__);
 
       if (status != NSS_STATUS_SUCCESS
 	  && nss_next_action (nip, status) == NSS_ACTION_RETURN)
diff --git a/iconv/gconv.h b/iconv/gconv.h
index 6576b0621f..4b71ccf4b8 100644
--- a/iconv/gconv.h
+++ b/iconv/gconv.h
@@ -123,7 +123,7 @@ typedef struct gconv_info
 {
   size_t nsteps;
   struct gconv_step *steps;
-  struct gconv_step_data *data;
+  struct gconv_step_data data[0];
 } *gconv_t;
 
 #endif /* gconv.h */
diff --git a/iconv/gconv_close.c b/iconv/gconv_close.c
index de0937d610..2fe842467b 100644
--- a/iconv/gconv_close.c
+++ b/iconv/gconv_close.c
@@ -1,5 +1,5 @@
 /* Release any resource associated with given conversion descriptor.
-   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -44,7 +44,6 @@ __gconv_close (gconv_t cd)
   while (!(drunp++)->is_last);
 
   /* Free the data allocated for the descriptor.  */
-  free (cd->data);
   free (cd);
 
   /* Close the participating modules.  */
diff --git a/iconv/gconv_conf.c b/iconv/gconv_conf.c
index a0aae43138..dce913da74 100644
--- a/iconv/gconv_conf.c
+++ b/iconv/gconv_conf.c
@@ -67,8 +67,7 @@ static struct gconv_module builtin_modules[] =
 #undef BUILTIN_TRANSFORMATION
 #undef BUILTIN_ALIAS
 
-static const char *
-builtin_aliases[] =
+static const char *builtin_aliases[] =
 {
 #define BUILTIN_TRANSFORMATION(From, ConstPfx, ConstLen, To, Cost, Name, \
 			       Fct, Init, End, MinF, MaxF, MinT, MaxT)
@@ -201,14 +200,16 @@ add_alias (char *rp, void *modules)
     malloc (sizeof (struct gconv_alias) + (wp - from));
   if (new_alias != NULL)
     {
+      void **inserted;
+
       new_alias->fromname = memcpy ((char *) new_alias
 				    + sizeof (struct gconv_alias),
 				    from, wp - from);
       new_alias->toname = new_alias->fromname + (to - from);
 
-      if (__tfind (new_alias, &__gconv_alias_db, __gconv_alias_compare) != NULL
-	  || (__tsearch (new_alias, &__gconv_alias_db, __gconv_alias_compare)
-	      == NULL))
+      inserted = (void **) __tsearch (new_alias, &__gconv_alias_db,
+				      __gconv_alias_compare);
+      if (inserted == NULL || *inserted != (void **) new_alias)
 	/* Something went wrong, free this entry.  */
 	free (new_alias);
     }
diff --git a/iconv/gconv_db.c b/iconv/gconv_db.c
index fdc3064d5c..4abc1ae48b 100644
--- a/iconv/gconv_db.c
+++ b/iconv/gconv_db.c
@@ -139,14 +139,17 @@ add_derivation (const char *fromset, const char *toset,
     malloc (sizeof (struct known_derivation) + fromset_len + toset_len);
   if (new_deriv != NULL)
     {
-      new_deriv->from = memcpy (new_deriv + 1, fromset, fromset_len);
-      new_deriv->to = memcpy ((char *) new_deriv->from + fromset_len,
+      new_deriv->from = (char *) (new_deriv + 1);
+      new_deriv->to = memcpy (__mempcpy (new_deriv + 1, fromset, fromset_len),
 			      toset, toset_len);
 
       new_deriv->steps = handle;
       new_deriv->nsteps = nsteps;
 
-      __tsearch (new_deriv, &known_derivations, derivation_compare);
+      if (__tsearch (new_deriv, &known_derivations, derivation_compare)
+	  == NULL)
+	/* There is some kind of memory allocation problem.  */
+	free (new_deriv);
     }
   /* Please note that we don't complain if the allocation failed.  This
      is not tragically but in case we use the memory debugging facilities
diff --git a/iconv/gconv_open.c b/iconv/gconv_open.c
index fb5f88b9a3..f3b6dfa86e 100644
--- a/iconv/gconv_open.c
+++ b/iconv/gconv_open.c
@@ -1,5 +1,5 @@
 /* Find matching transformation algorithms and initialize steps.
-   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -38,7 +38,8 @@ __gconv_open (const char *toset, const char *fromset, gconv_t *handle)
   if (res == GCONV_OK)
     {
       /* Allocate room for handle.  */
-      result = (gconv_t) malloc (sizeof (struct gconv_info));
+      result = (gconv_t) malloc (sizeof (struct gconv_info)
+				 + nsteps * sizeof (struct gconv_step_data));
       if (result == NULL)
 	res = GCONV_NOMEM;
       else
@@ -47,47 +48,41 @@ __gconv_open (const char *toset, const char *fromset, gconv_t *handle)
 	  result->steps = steps;
 	  result->nsteps = nsteps;
 
-	  /* Allocate array for the step data.  */
-	  result->data = (struct gconv_step_data *)
-	    calloc (nsteps, sizeof (struct gconv_step_data));
+	  /* Clear the array for the step data.  */
+	  memset (result->data, '\0',
+		  nsteps * sizeof (struct gconv_step_data));
 
-	  if (result->data == NULL)
-	    res = GCONV_NOMEM;
-	  else
+	  /* Call all initialization functions for the transformation
+	     step implemenations.  */
+	  for (cnt = 0; cnt < nsteps; ++cnt)
 	    {
-	      /* Call all initialization functions for the transformation
-		 step implemenations.  */
-	      struct gconv_step_data *data = result->data;
+	      /* If this is the last step we must not allocate an
+		 output buffer.  */
+	      result->data[cnt].is_last = cnt == nsteps - 1;
 
-	      for (cnt = 0; cnt < nsteps; ++cnt)
-		{
-		  /* If this is the last step we must not allocate an output
-		     buffer.  */
-		  data[cnt].is_last = cnt == nsteps - 1;
+	      /* Reset the counter.  */
+	      result->data[cnt].invocation_counter = 0;
 
-		  /* Reset the counter.  */
-		  data[cnt].invocation_counter = 0;
+	      /* It's a regular use.  */
+	      result->data[cnt].internal_use = 0;
 
-		  /* It's a regular use.  */
-		  data[cnt].internal_use = 0;
+	      /* We use the `mbstate_t' member in DATA.  */
+	      result->data[cnt].statep = &result->data[cnt].__state;
 
-		  /* We use the `mbstate_t' member in DATA.  */
-		  data[cnt].statep = &data[cnt].__state;
+	      /* Allocate the buffer.  */
+	      if (!result->data[cnt].is_last)
+		{
+		  size_t size = (GCONV_NCHAR_GOAL
+				 * steps[cnt].max_needed_to);
 
-		  /* Allocate the buffer.  */
-		  if (!data[cnt].is_last)
+		  result->data[cnt].outbuf = (char *) malloc (size);
+		  if (result->data[cnt].outbuf == NULL)
 		    {
-		      size_t size = (GCONV_NCHAR_GOAL
-				     * steps[cnt].max_needed_to);
-
-		      data[cnt].outbuf = (char *) malloc (size);
-		      if (data[cnt].outbuf == NULL)
-			{
-			  res = GCONV_NOMEM;
-			  break;
-			}
-		      data[cnt].outbufend = data[cnt].outbuf + size;
+		      res = GCONV_NOMEM;
+		      break;
 		    }
+		  result->data[cnt].outbufend = (result->data[cnt].outbuf
+						 + size);
 		}
 	    }
 	}
@@ -100,13 +95,8 @@ __gconv_open (const char *toset, const char *fromset, gconv_t *handle)
 
       if (result != NULL)
 	{
-	  if (result->data != NULL)
-	    {
-	      while (cnt-- > 0)
-		free (result->data[cnt].outbuf);
-
-	      free (result->data);
-	    }
+	  while (cnt-- > 0)
+	    free (result->data[cnt].outbuf);
 
 	  free (result);
 	  result = NULL;
diff --git a/include/string.h b/include/string.h
index c225d65b31..4d610bab62 100644
--- a/include/string.h
+++ b/include/string.h
@@ -18,4 +18,6 @@ extern char *__strndup __P ((__const char *__string, size_t __n));
 
 extern __ptr_t __rawmemchr __P ((__const __ptr_t __s, int __c));
 
+extern char *__strchrnul __P ((__const char *__s, int __c));
+
 #endif
diff --git a/include/time.h b/include/time.h
index 444679defe..fcfb3fe63c 100644
--- a/include/time.h
+++ b/include/time.h
@@ -22,7 +22,9 @@ extern size_t __tzname_cur_max;
 
 extern int __use_tzfile;
 
-extern void __tzfile_read __P ((const char *file));extern int __tzfile_compute __P ((time_t timer, int use_localtime,
+extern void __tzfile_read __P ((const char *file, size_t extra,
+				char **extrap));
+extern int __tzfile_compute __P ((time_t timer, int use_localtime,
 				  long int *leap_correct, int *leap_hit,
 				  struct tm *tp));
 extern void __tzfile_default __P ((const char *std, const char *dst,
diff --git a/inet/ether_hton.c b/inet/ether_hton.c
index 4e24fbb89f..92353c19c8 100644
--- a/inet/ether_hton.c
+++ b/inet/ether_hton.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
@@ -44,7 +44,7 @@ extern int __nss_ethers_lookup (service_user **nip, const char *name,
 int
 ether_hostton (const char *hostname, struct ether_addr *addr)
 {
-  static service_user *startp = NULL;
+  static service_user *startp;
   static lookup_function start_fct;
   service_user *nip;
   lookup_function fct;
diff --git a/inet/ether_line.c b/inet/ether_line.c
index 889be0a4e9..0911499c13 100644
--- a/inet/ether_line.c
+++ b/inet/ether_line.c
@@ -62,9 +62,7 @@ ether_line (const char *line, struct ether_addr *addr, char *hostname)
     }
 
   /* Remove trailing white space.  */
-  cp = strchr (line, '#');
-  if (cp == NULL)
-    cp = strchr (line, '\0');
+  cp = __strchrnul (line, '#');
   while (cp > line && isspace (cp[-1]))
     --cp;
   *cp = '\0';
diff --git a/inet/ether_ntoh.c b/inet/ether_ntoh.c
index ab3650f2a2..6937201c03 100644
--- a/inet/ether_ntoh.c
+++ b/inet/ether_ntoh.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
@@ -45,7 +45,7 @@ extern int __nss_ethers_lookup (service_user **nip, const char *name,
 int
 ether_ntohost (char *hostname, const struct ether_addr *addr)
 {
-  static service_user *startp = NULL;
+  static service_user *startp;
   static lookup_function start_fct;
   service_user *nip;
   lookup_function fct;
diff --git a/inet/getnameinfo.c b/inet/getnameinfo.c
index f31d3b9538..b69bdbe57d 100644
--- a/inet/getnameinfo.c
+++ b/inet/getnameinfo.c
@@ -66,15 +66,15 @@ static char *
 internal_function
 nrl_domainname (void)
 {
-  static char *domain = NULL;
-  static int first = 1;
+  static char *domain;
+  static int not_first;
 
-  if (first)
+  if (not_first)
     {
       __libc_lock_define_initialized (static, lock);
       __libc_lock_lock (lock);
 
-      if (first)
+      if (not_first)
 	{
 	  char *c;
 	  struct hostent *h, th;
@@ -82,7 +82,7 @@ nrl_domainname (void)
 	  char *tmpbuf = alloca (tmpbuflen);
 	  int herror;
 
-	  first = 0;
+	  not_first = 1;
 
 	  while (__gethostbyname_r ("localhost", &th, tmpbuf, tmpbuflen, &h,
 				    &herror))
diff --git a/inet/getnetgrent_r.c b/inet/getnetgrent_r.c
index d3443793bf..4bbba38ea2 100644
--- a/inet/getnetgrent_r.c
+++ b/inet/getnetgrent_r.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 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
@@ -48,7 +48,7 @@ static enum nss_status
 setup (void **fctp, const char *func_name, int all)
 {
   /* Remember the first service_entry, it's always the same.  */
-  static service_user *startp = NULL;
+  static service_user *startp;
   int no_more;
 
   if (startp == NULL)
diff --git a/inet/ruserpass.c b/inet/ruserpass.c
index d8ea79a046..2673fc5bf4 100644
--- a/inet/ruserpass.c
+++ b/inet/ruserpass.c
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  */
 
-#ifndef lint
+#if defined(LIBC_SCCS) && !defined(lint)
 static char sccsid[] = "@(#)ruserpass.c	8.3 (Berkeley) 4/2/94";
 #endif /* not lint */
 
@@ -61,18 +61,35 @@ static	FILE *cfile;
 
 static char tokval[100];
 
-static struct toktab {
-	const char *tokstr;
+static const char tokstr[] =
+{
+#define TOK_DEFAULT_IDX	0
+  "default\0"
+#define TOK_LOGIN_IDX	(TOK_DEFAULT_IDX + sizeof "default")
+  "login\0"
+#define TOK_PASSWORD_IDX (TOK_LOGIN_IDX + sizeof "login")
+  "password\0"
+#define TOK_PASSWD_IDX	(TOK_PASSWORD_IDX + sizeof "password")
+  "passwd\0"
+#define TOK_ACCOUNT_IDX	(TOK_PASSWD_IDX + sizeof "passwd")
+  "account\0"
+#define TOK_MACHINE_IDX	(TOK_ACCOUNT_IDX + sizeof "account")
+  "machine\0"
+#define TOK_MACDEF_IDX	(TOK_MACHINE_IDX + sizeof "machine")
+  "macdef"
+};
+
+static const struct toktab {
+	int tokstr_off;
 	int tval;
 } toktab[]= {
-	{ "default",	DEFAULT },
-	{ "login",	LOGIN },
-	{ "password",	PASSWD },
-	{ "passwd",	PASSWD },
-	{ "account",	ACCOUNT },
-	{ "machine",	MACHINE },
-	{ "macdef",	MACDEF },
-	{ NULL,		0 }
+	{ TOK_DEFAULT_IDX,	DEFAULT },
+	{ TOK_LOGIN_IDX,	LOGIN },
+	{ TOK_PASSWORD_IDX,	PASSWD },
+	{ TOK_PASSWD_IDX,	PASSWD },
+	{ TOK_ACCOUNT_IDX,	ACCOUNT },
+	{ TOK_MACHINE_IDX,	MACHINE },
+	{ TOK_MACDEF_IDX,	MACDEF }
 };
 
 
@@ -106,8 +123,7 @@ ruserpass(host, aname, apass)
 	}
 	if (__gethostname(myname, sizeof(myname)) < 0)
 		myname[0] = '\0';
-	if ((mydomain = strchr(myname, '.')) == NULL)
-		mydomain = "";
+	mydomain = __strchrnul(myname, '.');
 next:
 	while ((t = token())) switch(t) {
 
@@ -262,7 +278,7 @@ token()
 {
 	char *cp;
 	int c;
-	struct toktab *t;
+	int i;
 
 	if (feof_unlocked(cfile) || ferror_unlocked(cfile))
 		return (0);
@@ -290,8 +306,8 @@ token()
 	*cp = 0;
 	if (tokval[0] == 0)
 		return (0);
-	for (t = toktab; t->tokstr; t++)
-		if (!strcmp(t->tokstr, tokval))
-			return (t->tval);
+	for (i = 0; i < sizeof (toktab) / sizeof (toktab[0]); ++i)
+		if (!strcmp(&tokstr[toktab[i].tokstr_off], tokval))
+			return toktab[i].tval;
 	return (ID);
 }
diff --git a/intl/finddomain.c b/intl/finddomain.c
index 7734fbf24f..a3083b10e2 100644
--- a/intl/finddomain.c
+++ b/intl/finddomain.c
@@ -47,11 +47,6 @@ void free ();
 #  define memcpy(Dst, Src, Num) bcopy (Src, Dst, Num)
 # endif
 #endif
-#if !HAVE_STRCHR && !defined _LIBC
-# ifndef strchr
-#  define strchr index
-# endif
-#endif
 
 #if defined HAVE_UNISTD_H || defined _LIBC
 # include <unistd.h>
diff --git a/intl/loadmsgcat.c b/intl/loadmsgcat.c
index 480e6bc384..76887e8b4f 100644
--- a/intl/loadmsgcat.c
+++ b/intl/loadmsgcat.c
@@ -1,5 +1,5 @@
 /* Load needed message catalogs.
-   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.  Its master source is NOT part of
    the C library, however.
@@ -63,7 +63,7 @@
 /* We need a sign, whether a new catalog was loaded, which can be associated
    with all translations.  This is important if the translations are
    cached by one of GCC's features.  */
-int _nl_msg_cat_cntr = 0;
+int _nl_msg_cat_cntr;
 
 
 /* Load the message catalogs specified by FILENAME.  If it is no valid
diff --git a/intl/localealias.c b/intl/localealias.c
index 0c35b7a551..9f2c510428 100644
--- a/intl/localealias.c
+++ b/intl/localealias.c
@@ -1,5 +1,5 @@
 /* Handle aliases for locale names.
-   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.  Its master source is NOT part of
    the C library, however.
@@ -150,12 +150,12 @@ struct alias_map
 };
 
 
-static char *string_space = NULL;
-static size_t string_space_act = 0;
-static size_t string_space_max = 0;
+static char *string_space;
+static size_t string_space_act;
+static size_t string_space_max;
 static struct alias_map *map;
-static size_t nmap = 0;
-static size_t maxmap = 0;
+static size_t nmap;
+static size_t maxmap;
 
 
 /* Prototypes for local functions.  */
diff --git a/io/ftw.c b/io/ftw.c
index 2d4a837f32..f1e2fd991a 100644
--- a/io/ftw.c
+++ b/io/ftw.c
@@ -78,7 +78,7 @@ struct ftw_data
   /* Conversion array for flag values.  It is the identity mapping for
      `nftw' calls, otherwise it maps the values to those know by
      `ftw'.  */
-  int *cvt_arr;
+  const int *cvt_arr;
 
   /* Callback function.  We always use the `nftw' form.  */
   NFTW_FUNC_T func;
@@ -95,12 +95,12 @@ struct ftw_data
 /* Internally we use the FTW_* constants used for `nftw'.  When the
    process called `ftw' we must reduce the flag to the known flags
    for `ftw'.  */
-static int nftw_arr[] =
+static const int nftw_arr[] =
 {
   FTW_F, FTW_D, FTW_DNR, FTW_NS, FTW_SL, FTW_DP, FTW_SLN
 };
 
-static int ftw_arr[] =
+static const int ftw_arr[] =
 {
   FTW_F, FTW_D, FTW_DNR, FTW_NS, FTW_F, FTW_D, FTW_NS
 };
diff --git a/libio/iopopen.c b/libio/iopopen.c
index 3f3868d4ab..6b2d7f5328 100644
--- a/libio/iopopen.c
+++ b/libio/iopopen.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1993, 1997, 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU IO Library.
    Written by Per Bothner <bothner@cygnus.com>.
 
@@ -101,7 +101,7 @@ struct _IO_proc_file
 };
 typedef struct _IO_proc_file _IO_proc_file;
 
-static struct _IO_proc_file *proc_file_chain = NULL;
+static struct _IO_proc_file *proc_file_chain;
 
 _IO_FILE *
 _IO_new_proc_open (fp, command, mode)
diff --git a/libio/oldiopopen.c b/libio/oldiopopen.c
index c2e7f25707..c4116baae3 100644
--- a/libio/oldiopopen.c
+++ b/libio/oldiopopen.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU IO Library.
    Written by Per Bothner <bothner@cygnus.com>.
 
@@ -102,7 +102,7 @@ struct _IO_proc_file
 };
 typedef struct _IO_proc_file _IO_proc_file;
 
-static struct _IO_proc_file *old_proc_file_chain = NULL;
+static struct _IO_proc_file *old_proc_file_chain;
 
 _IO_FILE *
 _IO_old_proc_open (fp, command, mode)
diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog
index 27dff1e384..b058c7f95c 100644
--- a/linuxthreads/ChangeLog
+++ b/linuxthreads/ChangeLog
@@ -1,3 +1,8 @@
+1999-04-28  Ulrich Drepper  <drepper@cygnus.com>
+
+	* manager.c (pthread_allocate_stack): Optimize initialization of new
+	thread descriptor.
+
 1999-04-16  Andreas Jaeger  <aj@arthur.rhein-neckar.de>
 
 	* sysdeps/arm/Implies: Removed since cmpxchg/no-cmpxchg
diff --git a/linuxthreads/manager.c b/linuxthreads/manager.c
index 9657cc5731..6bafc868c1 100644
--- a/linuxthreads/manager.c
+++ b/linuxthreads/manager.c
@@ -274,6 +274,8 @@ static int pthread_allocate_stack(const pthread_attr_t *attr,
             }
         }
     }
+  /* Clear the thread data structure.  */
+  memset (new_thread, '\0', sizeof (*new_thread));
   *out_new_thread = new_thread;
   *out_new_thread_bottom = new_thread_bottom;
   *out_guardaddr = guardaddr;
@@ -316,34 +318,16 @@ static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
   /* Allocate new thread identifier */
   pthread_threads_counter += PTHREAD_THREADS_MAX;
   new_thread_id = sseg + pthread_threads_counter;
-  /* Initialize the thread descriptor */
-  new_thread->p_nextwaiting = NULL;
+  /* Initialize the thread descriptor.  Elements which have to be
+     initialized to zero already have this value.  */
   new_thread->p_tid = new_thread_id;
-  new_thread->p_priority = 0;
   new_thread->p_lock = &(__pthread_handles[sseg].h_lock);
-  new_thread->p_signal = 0;
-  new_thread->p_signal_jmp = NULL;
-  new_thread->p_cancel_jmp = NULL;
-  new_thread->p_terminated = 0;
-  new_thread->p_detached = attr == NULL ? 0 : attr->__detachstate;
-  new_thread->p_exited = 0;
-  new_thread->p_retval = NULL;
-  new_thread->p_joining = NULL;
-  new_thread->p_cleanup = NULL;
   new_thread->p_cancelstate = PTHREAD_CANCEL_ENABLE;
   new_thread->p_canceltype = PTHREAD_CANCEL_DEFERRED;
-  new_thread->p_canceled = 0;
   new_thread->p_errnop = &new_thread->p_errno;
-  new_thread->p_errno = 0;
   new_thread->p_h_errnop = &new_thread->p_h_errno;
-  new_thread->p_h_errno = 0;
-  new_thread->p_in_sighandler = NULL;
-  new_thread->p_sigwaiting = 0;
   new_thread->p_guardaddr = guardaddr;
   new_thread->p_guardsize = guardsize;
-  new_thread->p_userstack = attr != NULL && attr->__stackaddr_set;
-  memset (new_thread->p_specific, '\0',
-	  PTHREAD_KEY_1STLEVEL_SIZE * sizeof (new_thread->p_specific[0]));
   new_thread->p_self = new_thread;
   new_thread->p_nr = sseg;
   /* Initialize the thread handle */
@@ -353,6 +337,9 @@ static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
   /* Determine scheduling parameters for the thread */
   new_thread->p_start_args.schedpolicy = -1;
   if (attr != NULL) {
+    new_thread->p_detached = attr->__detachstate;
+    new_thread->p_userstack = attr->__stackaddr_set;
+
     switch(attr->__inheritsched) {
     case PTHREAD_EXPLICIT_SCHED:
       new_thread->p_start_args.schedpolicy = attr->__schedpolicy;