* locale/loadarchive.c (_nl_load_locale_from_archive): Parse locale

	name to find codeset name (if any) and normalize it.  If the
	normalized name differs, look up only that in the archive.
	* locale/programs/locarchive.c (add_locale_to_archive): If the name
	contains a codeset, normalize the codeset store only the normalized
	name in the archive.  If not, add an alias containing the locale's
	normalized codeset name.  Apply codeset name normalization when
	matching entries in the alias file.

	* locale/programs/locarchive.c (delete_locales_from_archive): Don't
	decrement HEAD->namehash_used here.
	(add_locale): Only need to insert name string when name_offset != 0.

	* locale/programs/localedef.c (options): Add -A/--alias-file.
	(alias_file): New variable.
	(parse_opt): Grok -A, set that.
	* locale/programs/localedef.h: Declare it.

	* locale/programs/locarchive.c (insert_name): New function, broken out
	of ...
	(add_locale_to_archive): ... here.  Call that.
	(add_alias): New function.
	(add_locale): New static function, add_locale_to_archive renamed.
	(add_locale_to_archive): Call that and use add_alias to add an alias
	for the name with codeset if the given name lacks it.
	(enlarge_archive): Call add_locale instead of add_locale_to_archive.

	* locale/Makefile (routines): Add loadarchive.
	* locale/loadarchive.c: New file, started from code by Ulrich Drepper.
	(_nl_load_locale_from_archive): New function.
	* locale/localeinfo.h: Declare it.
	* locale/findlocale.c (_nl_find_locale): If using default locale path,
	try _nl_load_locale_from_archive first.

	* locale/loadlocale.c (_nl_intern_locale_data): New function,
	broken out of _nl_load_locale.
	(_nl_load_locale): Call that.
	* locale/localeinfo.h: Declare it.
	(struct locale_data): Replace member `mmaped' with `alloc', an enum.
	(struct locale_data): Remove unused member `options'.
	* locale/findlocale.c (_nl_remove_locale): Update uses.
	* locale/loadlocale.c (_nl_load_locale, _nl_unload_locale): Likewise.
	* locale/C-collate.c: Update initializer.
	* locale/C-identification.c: Likewise.
	* locale/C-measurement.c: Likewise.
	* locale/C-telephone.c: Likewise.
	* locale/C-address.c: Likewise.
	* locale/C-name.c: Likewise.
	* locale/C-paper.c: Likewise.
	* locale/C-time.c: Likewise.
	* locale/C-numeric.c: Likewise.
	* locale/C-monetary.c: Likewise.
	* locale/C-messages.c : Likewise.
	* locale/C-ctype.c: Likewise.

	* locale/hashval.h [! LONGBITS]: Include <limits.h> here and
	use CHAR_BIT instead of BITSPERBYTE.

	* locale/localeinfo.h (_nl_find_locale, _nl_load_locale,
	_nl_unload_locale): Add `internal_function attribute_hidden' to decls.
	* locale/findlocale.c (_nl_find_locale): Add internal_function to defn.
	(_nl_remove_locale): Likewise.
	* locale/loadlocale.c (_nl_load_locale, _nl_unload_locale): Likewise.

	* locale/findlocale.c (_nl_default_locale_path): New variable.
	(_nl_find_locale): If LOCALE_PATH is null, default to that.
	* locale/localeinfo.h: Declare it.
	* locale/setlocale.c (setlocale): Use _nl_default_locale_path
	in place of LOCALEDIR.  If no LOCPATH, pass null to _nl_find_locale.
	* locale/newlocale.c (__newlocale): Likewise.

	* misc/err.c (vwarnx, vwarn): Fix typos in libc_hidden_def uses.
	* inet/rexec.c (rexec_af): Add libc_hidden_def.
	* sysdeps/generic/morecore.c: Likewise.
	* signal/allocrtsig.c (__libc_current_sigrtmin): Likewise.
	(__libc_current_sigrtmax): Likewise.

2002-08-08  Roland McGrath  <roland@redhat.com>

	* locale/loadlocale.c (_nl_load_locale): Don't use MAP_INHERIT.
	* catgets/open_catalog.c (__open_catalog): Likewise.

	* locale/programs/locarchive.c (INITIAL_NUM_NAMES): Renamed
	from typo INITIAL_NUM_NANES.
	(create_archive): Update use.

23 files changed, 990 insertions, 195 deletions

diff --git a/locale/C-address.c b/locale/C-address.c
index 12c9dde8d7..78b5a28468 100644
--- a/locale/C-address.c
+++ b/locale/C-address.c
@@ -30,7 +30,6 @@ const struct locale_data _nl_C_LC_ADDRESS attribute_hidden =
   NULL, 0, 0, /* no file mapped */
   UNDELETABLE,
   0,
-  NULL,
   13,
   {
     { string: "%a%N%f%N%d%N%b%N%s %h %e %r%N%C-%z %T%N%c%N" },
diff --git a/locale/C-collate.c b/locale/C-collate.c
index 0f31b08d10..f6db63feb7 100644
--- a/locale/C-collate.c
+++ b/locale/C-collate.c
@@ -104,7 +104,6 @@ const struct locale_data _nl_C_LC_COLLATE attribute_hidden =
   NULL, 0, 0, /* no file mapped */
   UNDELETABLE,
   0,
-  NULL,
   19,
   {
     /* _NL_COLLATE_NRULES */
diff --git a/locale/C-ctype.c b/locale/C-ctype.c
index 3dcd5fe121..57234844ce 100644
--- a/locale/C-ctype.c
+++ b/locale/C-ctype.c
@@ -544,7 +544,6 @@ const struct locale_data _nl_C_LC_CTYPE attribute_hidden =
   NULL, 0, 0,	/* no file mapped */
   UNDELETABLE,
   1,		/* Enable transliteration by default.  */
-  NULL,
   NR_FIXED + NR_CLASSES + NR_MAPS,
   {
     /* _NL_CTYPE_CLASS */
diff --git a/locale/C-identification.c b/locale/C-identification.c
index c2fd478289..542b33ccaf 100644
--- a/locale/C-identification.c
+++ b/locale/C-identification.c
@@ -30,7 +30,6 @@ const struct locale_data _nl_C_LC_IDENTIFICATION attribute_hidden =
   NULL, 0, 0, /* no file mapped */
   UNDELETABLE,
   0,
-  NULL,
   16,
   {
     { string: "ISO/IEC 14652 i18n FDCC-set" },
diff --git a/locale/C-measurement.c b/locale/C-measurement.c
index 590432146f..0a9c9831af 100644
--- a/locale/C-measurement.c
+++ b/locale/C-measurement.c
@@ -30,7 +30,6 @@ const struct locale_data _nl_C_LC_MEASUREMENT attribute_hidden =
   NULL, 0, 0, /* no file mapped */
   UNDELETABLE,
   0,
-  NULL,
   2,
   {
     { string: "\1" },
diff --git a/locale/C-messages.c b/locale/C-messages.c
index a118398394..f446e3dda6 100644
--- a/locale/C-messages.c
+++ b/locale/C-messages.c
@@ -30,7 +30,6 @@ const struct locale_data _nl_C_LC_MESSAGES attribute_hidden =
   NULL, 0, 0, /* no file mapped */
   UNDELETABLE,
   0,
-  NULL,
   5,
   {
     { string: "^[yY]" },
diff --git a/locale/C-monetary.c b/locale/C-monetary.c
index 0c91145f5c..643a1c4198 100644
--- a/locale/C-monetary.c
+++ b/locale/C-monetary.c
@@ -34,7 +34,6 @@ const struct locale_data _nl_C_LC_MONETARY attribute_hidden =
   NULL, 0, 0, /* no file mapped */
   UNDELETABLE,
   0,
-  NULL,
   46,
   {
     { string: "" },
diff --git a/locale/C-name.c b/locale/C-name.c
index 8526ec076f..7e714b3a37 100644
--- a/locale/C-name.c
+++ b/locale/C-name.c
@@ -30,7 +30,6 @@ const struct locale_data _nl_C_LC_NAME attribute_hidden =
   NULL, 0, 0, /* no file mapped */
   UNDELETABLE,
   0,
-  NULL,
   7,
   {
     { string: "%p%t%g%t%m%t%f" },
diff --git a/locale/C-numeric.c b/locale/C-numeric.c
index 3c096c6479..1171a4b973 100644
--- a/locale/C-numeric.c
+++ b/locale/C-numeric.c
@@ -27,7 +27,6 @@ const struct locale_data _nl_C_LC_NUMERIC attribute_hidden =
   NULL, 0, 0, /* no file mapped */
   UNDELETABLE,
   0,
-  NULL,
   6,
   {
     { string: "." },
diff --git a/locale/C-paper.c b/locale/C-paper.c
index fb3e619ad3..62d1a7dec7 100644
--- a/locale/C-paper.c
+++ b/locale/C-paper.c
@@ -30,7 +30,6 @@ const struct locale_data _nl_C_LC_PAPER attribute_hidden =
   NULL, 0, 0, /* no file mapped */
   UNDELETABLE,
   0,
-  NULL,
   3,
   {
     { word: 297 },
diff --git a/locale/C-telephone.c b/locale/C-telephone.c
index 795de3c1f3..abd667ea8a 100644
--- a/locale/C-telephone.c
+++ b/locale/C-telephone.c
@@ -30,7 +30,6 @@ const struct locale_data _nl_C_LC_TELEPHONE attribute_hidden =
   NULL, 0, 0, /* no file mapped */
   UNDELETABLE,
   0,
-  NULL,
   5,
   {
     { string: "+%c %a %l" },
diff --git a/locale/C-time.c b/locale/C-time.c
index 9ce133a6ce..b50fea57b9 100644
--- a/locale/C-time.c
+++ b/locale/C-time.c
@@ -29,7 +29,6 @@ const struct locale_data _nl_C_LC_TIME attribute_hidden =
   NULL, 0, 0, /* no file mapped */
   UNDELETABLE,
   0,
-  NULL,
   111,
   {
     { string: "Sun" },
diff --git a/locale/Makefile b/locale/Makefile
index d3c62adc07..9509c1f7f7 100644
--- a/locale/Makefile
+++ b/locale/Makefile
@@ -35,8 +35,8 @@ distribute	= localeinfo.h categories.def iso-639.def iso-3166.def \
 			      locfile-kw.gperf locfile-kw.h linereader.h \
 			      locfile.h charmap.h repertoire.h localedef.h \
 			      3level.h charmap-dir.h locarchive.c)
-routines	= setlocale findlocale loadlocale localeconv nl_langinfo \
-		  nl_langinfo_l mb_cur_max \
+routines	= setlocale findlocale loadlocale loadarchive \
+		  localeconv nl_langinfo nl_langinfo_l mb_cur_max \
 		  newlocale duplocale freelocale uselocale
 tests		= tst-C-locale
 categories	= ctype messages monetary numeric time paper name \
diff --git a/locale/findlocale.c b/locale/findlocale.c
index 75784bab9f..80480113c0 100644
--- a/locale/findlocale.c
+++ b/locale/findlocale.c
@@ -42,8 +42,11 @@ extern struct locale_data *const _nl_C[] attribute_hidden;
    which are somehow addressed.  */
 struct loaded_l10nfile *_nl_locale_file_list[__LC_LAST];
 
+const char _nl_default_locale_path[] attribute_hidden = LOCALEDIR;
+
 
 struct locale_data *
+internal_function
 _nl_find_locale (const char *locale_path, size_t locale_path_len,
 		 int category, const char **name)
 {
@@ -82,6 +85,19 @@ _nl_find_locale (const char *locale_path, size_t locale_path_len,
       return _nl_C[category];
     }
 
+  /* We really have to load some data.  First we try the archive,
+     but only if there was no LOCPATH environment variable specified.  */
+  if (__builtin_expect (locale_path == NULL, 1))
+    {
+      struct locale_data *data = _nl_load_locale_from_archive (category, name);
+      if (__builtin_expect (data != NULL, 1))
+	return data;
+
+      /* Nothing in the archive.  Set the default path to search below.  */
+      locale_path = _nl_default_locale_path;
+      locale_path_len = sizeof _nl_default_locale_path;
+    }
+
   /* We really have to load some data.  First see whether the name is
      an alias.  Please note that this makes it impossible to have "C"
      or "POSIX" as aliases.  */
@@ -99,7 +115,7 @@ _nl_find_locale (const char *locale_path, size_t locale_path_len,
 
      Beside the first all of them are allowed to be missing.  If the
      full specified locale is not found, the less specific one are
-     looked for.  The various part will be stripped of according to
+     looked for.  The various part will be stripped off according to
      the following order:
 		(1) codeset
 		(2) normalized codeset
@@ -236,6 +252,7 @@ _nl_find_locale (const char *locale_path, size_t locale_path_len,
 /* Calling this function assumes the lock for handling global locale data
    is acquired.  */
 void
+internal_function
 _nl_remove_locale (int locale, struct locale_data *data)
 {
   if (--data->usage_count == 0)
@@ -258,7 +275,7 @@ _nl_remove_locale (int locale, struct locale_data *data)
 
 #ifdef _POSIX_MAPPED_FILES
       /* Really delete the data.  First delete the real data.  */
-      if (__builtin_expect (data->mmaped, 1))
+      if (__builtin_expect (data->alloc == ld_mapped, 1))
 	{
 	  /* Try to unmap the area.  If this fails we mark the area as
 	     permanent.  */
diff --git a/locale/hashval.h b/locale/hashval.h
index e35957dde3..f846cdfb27 100644
--- a/locale/hashval.h
+++ b/locale/hashval.h
@@ -19,7 +19,8 @@
    02111-1307 USA.  */
 
 #ifndef	LONGBITS
-# define LONGBITS (sizeof (long int) * BITSPERBYTE)
+# include <limits.h>
+# define LONGBITS (sizeof (long int) * CHAR_BIT)
 #endif
 
 unsigned long int compute_hashval (const void *key, size_t keylen);
diff --git a/locale/loadarchive.c b/locale/loadarchive.c
new file mode 100644
index 0000000000..08e5f94905
--- /dev/null
+++ b/locale/loadarchive.c
@@ -0,0 +1,447 @@
+/* Code to load locale data from the locale archive file.
+   Copyright (C) 2002 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <locale.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <assert.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/param.h>
+
+#include "localeinfo.h"
+#include "locarchive.h"
+
+/* Define the hash function.  We define the function as static inline.  */
+#define compute_hashval static inline compute_hashval
+#include "hashval.h"
+#undef compute_hashval
+
+#undef LOCALEDIR
+#define LOCALEDIR "/spare/roland/tmp/usr/lib/locale/"
+
+/* Name of the locale archive file.  */
+static const char archfname[] = LOCALEDIR "locale-archive";
+
+
+/* Record of contiguous pages already mapped from the locale archive.  */
+struct archmapped
+{
+  void *ptr;
+  uint32_t from;
+  uint32_t len;
+  struct archmapped *next;
+};
+static struct archmapped *archmapped;
+
+/* This describes the mapping at the beginning of the file that contains
+   the header data.  There could be data in the following partial page,
+   so this is searched like any other.  Once the archive has been used,
+   ARCHMAPPED points to this; if mapping the archive header failed,
+   then headmap.ptr is null.  */
+static struct archmapped headmap;
+static struct stat64 archive_stat; /* stat of archive when header mapped.  */
+
+/* Record of locales that we have already loaded from the archive.  */
+struct locale_in_archive
+{
+  struct locale_in_archive *next;
+  const char *name;
+  struct locale_data *data[__LC_LAST];
+};
+static struct locale_in_archive *archloaded;
+
+
+/* Local structure and subroutine of _nl_load_archive, see below.  */
+struct range
+{
+  uint32_t from;
+  uint32_t len;
+  int category;
+  void *result;
+};
+
+static int
+rangecmp (const void *p1, const void *p2)
+{
+  return ((struct range *) p1)->from - ((struct range *) p2)->from;
+}
+
+
+/* Calculate the amount of space needed for all the tables described
+   by the given header.  Note we do not include the empty table space
+   that has been preallocated in the file, so our mapping may not be
+   large enough if localedef adds data to the file in place.  However,
+   doing that would permute the header fields while we are accessing
+   them and thus not be safe anyway, so we don't allow for that.  */
+static inline off_t
+calculate_head_size (const struct locarhead *h)
+{
+  off_t namehash_end = (h->namehash_offset
+			+ h->namehash_size * sizeof (struct namehashent));
+  off_t string_end =  h->string_offset + h->string_used;
+  off_t locrectab_end = (h->locrectab_offset
+			 + h->locrectab_used * sizeof (struct locrecent));
+  return MAX (namehash_end, MAX (string_end, locrectab_end));
+}
+
+
+/* Find the locale *NAMEP in the locale archive, and return the
+   internalized data structure for its CATEGORY data.  If this locale has
+   already been loaded from the archive, just returns the existing data
+   structure.  If successful, sets *NAMEP to point directly into the mapped
+   archive string table; that way, the next call can short-circuit strcmp.  */
+struct locale_data *
+internal_function
+_nl_load_locale_from_archive (int category, const char **namep)
+{
+  const char *name = *namep;
+  struct
+  {
+    void *addr;
+    size_t len;
+  } results[__LC_LAST];
+  struct locale_in_archive *lia;
+  struct locarhead *head;
+  struct namehashent *namehashtab;
+  struct locrecent *locrec;
+  struct archmapped *mapped;
+  struct archmapped *last;
+  unsigned long int hval;
+  size_t idx;
+  size_t incr;
+  struct range ranges[__LC_LAST - 1];
+  int nranges;
+  int cnt;
+  size_t ps = __sysconf (_SC_PAGE_SIZE);
+  int fd = -1;
+
+  /* Check if we have already loaded this locale from the archive.
+     If we previously loaded the locale but found bogons in the data,
+     then we will have stored a null pointer to return here.  */
+  for (lia = archloaded; lia != NULL; lia = lia->next)
+    if (name == lia->name || !strcmp (name, lia->name))
+      {
+	*namep = lia->name;
+	return lia->data[category];
+      }
+
+  {
+    /* If the name contains a codeset, then we normalize the name before
+       doing the lookup.  */
+    const char *p = strchr (name, '.');
+    if (p != NULL && p[1] != '@' && p[1] != '\0')
+      {
+	const char *rest = __strchrnul (++p, '@');
+	const char *normalized_codeset = _nl_normalize_codeset (p, rest - p);
+	if (normalized_codeset == NULL)	/* malloc failure */
+	  return NULL;
+	if (strncmp (normalized_codeset, p, rest - p) != 0
+	    || normalized_codeset[rest - p] != '\0')
+	  {
+	    /* There is a normalized codeset name that is different from
+	       what was specified; reconstruct a new locale name using it.  */
+	    size_t normlen = strlen (normalized_codeset);
+	    size_t restlen = strlen (rest) + 1;
+	    char *newname = alloca (p - name + normlen + restlen);
+	    memcpy (__mempcpy (__mempcpy (newname, name, p - name),
+			       normalized_codeset, normlen),
+		    rest, restlen);
+	    free ((char *) normalized_codeset);
+	    name = newname;
+	  }
+      }
+  }
+
+  /* Make sure the archive is loaded.  */
+  if (archmapped == NULL)
+    {
+      /* We do this early as a sign that we have tried to open the archive.
+	 If headmap.ptr remains null, that's an indication that we tried
+	 and failed, so we won't try again.  */
+      archmapped = &headmap;
+
+      /* The archive has never been opened.  */
+      fd = __open64 (archfname, O_RDONLY);
+      if (fd < 0)
+	/* Cannot open the archive, for whatever reason.  */
+	return NULL;
+
+      if (__fxstat64 (_STAT_VER, fd, &archive_stat) == -1)
+	{
+	  /* stat failed, very strange.  */
+	close_and_out:
+	  __close (fd);
+	  return NULL;
+	}
+
+      if (sizeof (void *) > 4)
+	{
+	  /* We will just map the whole file, what the hell.  */
+	  void *result = __mmap64 (NULL, archive_stat.st_size,
+				   PROT_READ, MAP_SHARED, fd, 0);
+	  if (result == MAP_FAILED)
+	    goto close_and_out;
+	  /* Check whether the file is large enough for the sizes given in the