Update.

2001-06-22  Jakub Jelinek  <jakub@redhat.com>

	* posix/regex.c (regex_compile, re_match_2_internal): Fix comment
	typos.

2001-06-01  Wolfram Gloger  <wg@malloc.de>

	* malloc/malloc.c (malloc_atfork, free_atfork): Use a unique value
	ATFORK_ARENA_PTR, not 0, for the thread-specific arena pointer
	when malloc_atfork is in use.

6 files changed, 274 insertions, 7 deletions

diff --git a/ChangeLog b/ChangeLog
index 5838cb51f6..0cb258bf5a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2001-06-22  Jakub Jelinek  <jakub@redhat.com>
+
+	* posix/regex.c (regex_compile, re_match_2_internal): Fix comment
+	typos.
+
+2001-06-01  Wolfram Gloger  <wg@malloc.de>
+
+	* malloc/malloc.c (malloc_atfork, free_atfork): Use a unique value
+	ATFORK_ARENA_PTR, not 0, for the thread-specific arena pointer
+	when malloc_atfork is in use.
+
 2001-06-22  Andreas Jaeger  <aj@suse.de>
 
 	* sysdeps/i386/fpu/s_nextafterl.c (__nextafterl): Add parenthese
diff --git a/localedata/ChangeLog b/localedata/ChangeLog
index 9958c69344..c29ed468bd 100644
--- a/localedata/ChangeLog
+++ b/localedata/ChangeLog
@@ -1,3 +1,7 @@
+2001-06-25  Jakub Jelinek  <jakub@redhat.com>
+
+	* SUPPORTED (zh_HK): Update character map name to BIG5-HKSCS.
+
 2001-06-09  Bruno Haible  <haible@clisp.cons.org>
 
 	* charmaps/BIG5-HKSCS: Renamed from charmaps/BIG5HKSCS.  Change
diff --git a/localedata/SUPPORTED b/localedata/SUPPORTED
index 64cc2026e8..a7909462a5 100644
--- a/localedata/SUPPORTED
+++ b/localedata/SUPPORTED
@@ -144,6 +144,6 @@ vi_VN UTF-8
 zh_CN GB2312
 zh_CN.GB18030 GB18030
 zh_CN.GBK GBK
-zh_HK BIG5HKSCS
+zh_HK BIG5-HKSCS
 zh_TW BIG5
 zh_TW.EUC-TW EUC-TW
diff --git a/malloc/malloc.c b/malloc/malloc.c
index a9541b9630..c0f70afb18 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -1595,6 +1595,11 @@ int __malloc_initialized = -1;
 
 #ifndef NO_THREADS
 
+/* Magic value for the thread-specific arena pointer when
+   malloc_atfork() is in use.  */
+
+#define ATFORK_ARENA_PTR ((Void_t*)-1)
+
 /* The following two functions are registered via thread_atfork() to
    make sure that the mutexes remain in a consistent state in the
    fork()ed version of a thread.  Also adapt the malloc and free hooks
@@ -1627,7 +1632,7 @@ ptmalloc_lock_all __MALLOC_P((void))
   __free_hook = free_atfork;
   /* Only the current thread may perform malloc/free calls now. */
   tsd_getspecific(arena_key, save_arena);
-  tsd_setspecific(arena_key, (Void_t*)0);
+  tsd_setspecific(arena_key, ATFORK_ARENA_PTR);
 #endif
 }
 
@@ -4169,6 +4174,8 @@ struct mallinfo mALLINFo()
 
 #ifndef NO_THREADS
   tsd_getspecific(arena_key, vptr);
+  if(vptr == ATFORK_ARENA_PTR)
+    vptr = (Void_t*)&main_arena;
 #endif
   malloc_update_mallinfo((vptr ? (arena*)vptr : &main_arena), &mi);
   return mi;
@@ -4724,7 +4731,8 @@ malloc_atfork(sz, caller) size_t sz; const Void_t *caller;
   mchunkptr victim;
 
   tsd_getspecific(arena_key, vptr);
-  if(!vptr) {
+  if(vptr == ATFORK_ARENA_PTR) {
+    /* We are the only thread that may allocate at all.  */
     if(save_malloc_hook != malloc_check) {
       if(request2size(sz, nb))
         return 0;
@@ -4772,10 +4780,10 @@ free_atfork(mem, caller) Void_t* mem; const Void_t *caller;
 
   ar_ptr = arena_for_ptr(p);
   tsd_getspecific(arena_key, vptr);
-  if(vptr)
+  if(vptr != ATFORK_ARENA_PTR)
     (void)mutex_lock(&ar_ptr->mutex);
   chunk_free(ar_ptr, p);
-  if(vptr)
+  if(vptr != ATFORK_ARENA_PTR)
     (void)mutex_unlock(&ar_ptr->mutex);
 }
 
diff --git a/posix/regex.c b/posix/regex.c
index 20d8b71fc2..aedabc6f93 100644
--- a/posix/regex.c
+++ b/posix/regex.c
@@ -2339,7 +2339,7 @@ PREFIX(regex_compile) (ARG_PREFIX(pattern), ARG_PREFIX(size), syntax, bufp)
   /* A temporary space to keep wchar_t pattern and compiled pattern.  */
   CHAR_T *pattern, *COMPILED_BUFFER_VAR;
   size_t size;
-  /* offset buffer for optimizatoin. See convert_mbs_to_wc.  */
+  /* offset buffer for optimization. See convert_mbs_to_wc.  */
   int *mbs_offset = NULL;
   /* It hold whether each wchar_t is binary data or not.  */
   char *is_binary = NULL;
@@ -5468,7 +5468,7 @@ PREFIX(re_match_2_internal) (bufp, ARG_PREFIX(string1), ARG_PREFIX(size1),
   CHAR_T *string1 = NULL, *string2 = NULL;
   /* We need the size of wchar_t buffers correspond to csize1, csize2.  */
   int size1 = 0, size2 = 0;
-  /* offset buffer for optimizatoin. See convert_mbs_to_wc.  */
+  /* offset buffer for optimization. See convert_mbs_to_wc.  */
   int *mbs_offset1 = NULL, *mbs_offset2 = NULL;
   /* They hold whether each wchar_t is binary data or not.  */
   char *is_binary = NULL;
diff --git a/posix/tst-regex.c b/posix/tst-regex.c
new file mode 100644
index 0000000000..436ad57a25
--- /dev/null
+++ b/posix/tst-regex.c
@@ -0,0 +1,244 @@
+/* Copyright (C) 2001 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <spawn.h>
+#include "spawn_int.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <iconv.h>
+#include <locale.h>
+#include <mcheck.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <regex.h>
+
+
+#ifdef _POSIX_CPUTIME
+static clockid_t cl;
+static int use_clock;
+#endif
+
+static int run_test (const char *expr, const char *mem, size_t memlen);
+
+
+int
+main (void)
+{
+  const char *file;
+  char *mem;
+  char *umem;
+  size_t memlen;
+  int fd;
+  struct stat st;
+#ifdef _POSIX_CPUTIME
+  unsigned int sum = 0;
+#endif
+  size_t offset;
+  int result;
+  char *inmem;
+  char *outmem;
+  size_t inlen;
+  size_t outlen;
+  iconv_t cd;
+  char *expr;
+  char *uexpr;
+
+  mtrace ();
+
+  /* Make the content of the file available in memory.  */
+  file = "../ChangeLog.8";
+  fd = open (file, O_RDONLY);
+  if (fd == -1)
+    error (EXIT_FAILURE, errno, "cannot open %s", basename (file));
+
+  if (fstat (fd, &st) != 0)
+    error (EXIT_FAILURE, errno, "cannot stat %s", basename (file));
+  memlen = st.st_size;
+
+  mem = (char *) malloc (memlen + 1);
+  if (mem == NULL)
+    error (EXIT_FAILURE, errno, "while allocating buffer");
+
+  if (read (fd, mem, memlen) != memlen)
+    error (EXIT_FAILURE, 0, "cannot read entire file");
+  mem[memlen] = '\0';
+
+  close (fd);
+
+#ifdef _POSIX_CPUTIME
+  /* If possible we will time the regex calls.  */
+  use_clock = clock_getcpuclockid (0, &cl) == 0;
+
+  /* Now make sure the file is actually loaded.  */
+  if (use_clock)
+    {
+      for (offset = 0; offset < memlen; ++offset)
+	sum += mem[offset];
+      /* We print it so that the compiler cannnot optimize the loop away.  */
+      printf ("sum = %u\n", sum);
+    }
+#endif
+
+  /* First test: search with an ISO-8859-1 locale.  */
+  if (setlocale (LC_ALL, "de_DE.ISO-8859-1") == NULL)
+    error (EXIT_FAILURE, 0, "cannot set locale de_DE.ISO-8859-1");
+
+  /* This is the expression we'll use.  */
+  expr = "[äáàâéèêíìîñöóòôüúùû]";
+
+  puts ("\nTest with 8-bit locale");
+  result = run_test (expr, mem, memlen);
+
+  /* Second test: search with an UTF-8 locale.  */
+  if (setlocale (LC_ALL, "de_DE.UTF-8") == NULL)
+    error (EXIT_FAILURE, 0, "cannot set locale de_DE.UTF-8");
+
+  /* For the second test we have to convert the file to UTF-8.  */
+  umem = (char *) malloc (2 * memlen);
+  if (umem == NULL)
+    error (EXIT_FAILURE, errno, "while allocating buffer");
+
+  cd = iconv_open ("UTF-8", "ISO-8859-1");
+  if (cd == (iconv_t) -1)
+    error (EXIT_FAILURE, errno, "cannot get conversion descriptor");
+
+  inmem = mem;
+  inlen = memlen;
+  outmem = umem;
+  outlen = 2 * memlen;
+  iconv (cd, &inmem, &inlen, &outmem, &outlen);
+  if (inlen != 0)
+    error (EXIT_FAILURE, errno, "cannot convert buffer");
+
+  inmem = expr;
+  inlen = strlen (expr);
+  outlen = inlen * MB_CUR_MAX;
+  outmem = uexpr = alloca (outlen + 1);
+  iconv (cd, &inmem, &inlen, &outmem, &outlen);
+  if (inlen != 0)
+    error (EXIT_FAILURE, errno, "cannot convert expression");
+
+  iconv_close (cd);
+
+  /* Run the tests.  */
+  puts ("\nTest with multi-byte locale");
+  result |= run_test (uexpr, umem, 2 * memlen - outlen);
+
+  /* Free the resources.  */
+  free (mem);
+
+  return result;
+}
+
+
+static int
+run_test (const char *expr, const char *mem, size_t memlen)
+{
+#ifdef _POSIX_CPUTIME
+  struct timespec start;
+  struct timespec finish;
+#endif
+  regex_t re;
+  int err;
+  size_t offset;
+  int cnt;
+
+#ifdef _POSIX_CPUTIME
+  if (use_clock)
+    use_clock = clock_gettime (cl, &start) == 0;
+#endif
+
+  err = regcomp (&re, expr, 0);
+  if (err != REG_NOERROR)
+    {
+      char buf[200];
+      regerror (err, &re, buf, sizeof buf);
+      error (EXIT_FAILURE, 0, "cannot compile expression: %s", buf);
+    }
+
+  cnt = 0;
+  offset = 0;
+  assert (mem[memlen] == '\0');
+  while (offset < memlen)
+    {
+      regmatch_t ma[1];
+      const char *sp;
+      const char *ep;
+
+      err = regexec (&re, mem + offset, 1, ma, 0);
+      if (err == REG_NOMATCH)
+	break;
+
+      if (err != REG_NOERROR)
+	{
+	  char buf[200];
+	  regerror (err, &re, buf, sizeof buf);
+	  error (EXIT_FAILURE, 0, "cannot use expression: %s", buf);
+	}
+
+      assert (ma[0].rm_so >= 0);
+      sp = mem + offset + ma[0].rm_so;
+      while (sp > expr && sp[-1] != '\n')
+	--sp;
+
+      ep = mem + offset + ma[0].rm_so;
+      while (*ep != '\0' && *ep != '\n')
+	++ep;
+
+      printf ("match %d: \"%.*s\"\n", ++cnt, (int) (ep - sp), sp);
+
+      offset = ep + 1 - mem;
+    }
+
+  regfree (&re);
+
+#ifdef _POSIX_CPUTIME
+  if (use_clock)
+    {
+      use_clock = clock_gettime (cl, &finish) == 0;
+      if (use_clock)
+	{
+	  if (finish.tv_nsec < start.tv_nsec)
+	    {
+	      finish.tv_nsec -= start.tv_nsec - 1000000000;
+	      finish.tv_sec -= 1 + start.tv_sec;
+	    }
+	  else
+	    {
+	      finish.tv_nsec -= start.tv_nsec;
+	      finish.tv_sec -= start.tv_sec;
+	    }
+
+	  printf ("elapsed time: %ld.%09ld sec\n",
+		  finish.tv_sec, finish.tv_nsec);
+	}
+    }
+#endif
+
+  /* Return an error if the number of matches found is not match we
+     expect.  */
+  return cnt != 2;
+}