Update.cvs/libc-ud-970408

1997-04-09 01:24  Ulrich Drepper  <drepper@cygnus.com>

	* rellns-sh: Rewrite to work also in presence of symlinks.

	* arpg/argp-fmtstream.c: Add casts to prevent warnings.
	* argp/argp-fmtstream.h: Likewise.
	* argp/argp-help.c: Likewise.

	* elf/dl-minimal.c: Add definition of calloc.
	* elf/version.c: Add casts to prevent warnings.
	(_dl_check_map_versions): Use calloc instead of malloc+memset.

	* locale/setlocale.c (_nl_current): Add element with index LC_ALL.
	Reported by Greg McGary <gkm@eng.ascend.com>.

	* manual/libc.texinfo: Update malloc documentation for new malloc.
	* manual/memory.texi: Likewise.
	Patch by Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>.

	* math/libm-test.c (check_long): New function.
	(check_longlong): New function.
	(rinttol_test): New function.
	(rinttoll_test): New function.

	* nis/nss_compat/compat-grp.c (in_blacklist): Improve a bit.
	* nis/nss_compat/compat-pwd.c: Likewise.
	* nis/nss_compat/compat-spwd.c: Likewise.

	* stdlib/erand48_r.c (erand48_r): Build double value using
	ieee754_double union and use random bits in different order to
	increase effect of seed.
	Reported by David Mosberger-Tang <davidm@AZStarNet.com>.

	* sunrpc/svc_auth.c: Moved to ...
	* sysdeps/generic/svc_auth.c: ...here.

	* time/time.h: Pretty print.

1997-04-08 07:19  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* libio/genops.c (_IO_flush_all_linebuffered): don't flush on
	a read-only stream.

1997-04-09 01:19  Ulrich Drepper  <drepper@cygnus.com>

	* malloc/malloc.c (mALLOC_STATs) [MALLOC_DEBUG>1]: Put declaration
	in correct place.
	Patch by Marcus G. Daniels <marcus@cathcart.sysc.pdx.edu>.

1997-04-07 15:34  Ulrich Drepper  <drepper@cygnus.com>

	* stdio-common/Makefile (tests): Add tst-ferror.
	* stdio-common/tst-ferror.c: New file.  Some tests for error
	indicator of streams.
	* stdio-common/tst-ferror.input: New file.

	* isomac.c: Let tests not fail because the compiler defines itself
	symbols which violate the name space rules.  gcc defines symbols
	for the architecture which are not protected by an underscore
	character.

	* math/Makefile (libm-support): Add s_rinttol and s_rinttoll.
	(libm-calls): Add s_clog.
	* sysdeps/libm-ieee754/s_clog.c: New file.  Implementation of
	logarithm of complex value.
	* sysdeps/libm-ieee754/s_clogf.c: New file.
	* sysdeps/libm-ieee754/s_clogl.c: New file.
	* math/libm-test.c (clog_test): Compile this function.  Fix a few
	typos.
	(main): Call clog_test.

	* sysdeps/libm-ieee754/s_rinttol.c: New file.  Round long double
	value to long int.
	* sysdeps/libm-i387/s_rinttol.S: New file.
	* sysdeps/libm-ieee754/s_rinttoll.c: new file.  Round long double
	value to long long int.
	* sysdeps/libm-i387/s_rinttoll.S: New file.

	* sysdeps/libm-ieee754/s_rintl.c: Many corrections.  The previous
	version was full of errors.

	* math/math.h (rinttol): Argument is of type `long double' not
	`double'.
	(rinttoll): Likewise.
	(roundtol): Likewise.
	(roundtoll): Likewise.

1997-04-06 11:32  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* posix/getopt.c (_getopt_initialize): Preserve optind.
	(_getopt_internal): Set optind to 1 if optind == 0 before
	calling _getopt_initialize ().

1997-04-05 16:45  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/rpcsvc/nislib.h: Change const nis_name to new type
	const_nis_name.
	* nis/nis_intern.c: Likewise.
	* nis/nis_intern.h: Likewise.
	* nis/nis_server.c: Likewise.
	* nis/nis_subr.c: Likewise.
	* nis/nis_table.c: Likewise.
	* nis/nis_names.c: Likewise.  Fill out ns_request structure in
	nis_add().

	* nis/nss_compat/compat-pwd.c: Use reentrant netgroup functions.
	* nis/nss_compat/compat-spwd.c: Likewise.

1997-03-27 07:37  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* libio/fileops.c (_IO_file_overflow): Set error when try to write
	on a read-only stream.

	* sysdeps/gnu/utmpbits.h (ut_xtime): New symbol.
	(ut_time): Define it only if _NO_UT_TIME is not defined.

1997-04-06 00:42  Ulrich Drepper  <drepper@cygnus.com>

	* misc/tst-tsearch.c: Include <string.h>.  Define _GNU_SOURCE only
	if not already defined.

1997-04-05 16:14  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/netatalk/at.h: Include <sys/socket.h> to
	get definition of sa_family_t for <linux/atalk.h>.
	Reported by a sun <asun@zoology.washington.edu>.

	* malloc/malloc.c (cALLOc): Little optimization.

1 files changed, 114 insertions, 24 deletions

diff --git a/isomac.c b/isomac.c
index fc6de89..11d0ecd 100644
--- a/isomac.c
+++ b/isomac.c
@@ -67,6 +67,10 @@
      will see messages about iso646.h, wctype.h and wchar.h not being
      found.  */
 
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE 1
+#endif
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -168,18 +172,28 @@ static char *macros[] =
 #define NUMBER_OF_SUFFIXES             (sizeof suffix / sizeof *suffix)
 #define NUMBER_OF_MACROS               (sizeof macros / sizeof *macros)
 
+
+/* Format string to build command to invoke compiler.  */
+static const char fmt[] = "\
+echo \"#include <%s>\" |\
+%s -E -dM -ansi -pedantic %s -D_LIBC -I. -I `%s --print-prog-name=include` -\
+> %s";
+
+
 /* The compiler we use (given on the command line).  */
 char *CC;
 /* The -I parameters for CC to find all headers.  */
 char *INC;
 
-static int check_header (const char *);
+static const char **get_null_defines (void);
+static int check_header (const char *, const char **);
 
 int
 main (int argc, char *argv[])
 {
   int h;
   int result = 0;
+  const char **ignore_list;
 
   CC = argc > 1 ? argv[1] : "gcc";
   INC = argc > 2 ? argv[2] : "";
@@ -190,44 +204,107 @@ main (int argc, char *argv[])
       return EXIT_FAILURE;
     }
 
+  /* First get list of symbols which are defined by the compiler.  */
+  ignore_list = get_null_defines ();
+
   for (h = 0; h < NUMBER_OF_HEADERS; ++h)
     {
       char file_name[HEADER_MAX];
       sprintf (file_name, "%s.h", header[h]);
-      result |= check_header (file_name);
+      result |= check_header (file_name, ignore_list);
     }
 
-
-#if 0
   /* The test suite should return errors but for now this is not
      practical.  Give a warning and ask the user to correct the bugs.  */
   return result;
-#else
-  if (result)
-    fputs ("\
-##########################################################################\n\
-# The test suite found some problems with your system (see the generated #\n\
-# isomac.out file).  These are all violations of the ISO C rules and     #\n\
-# should be corrected.  If the problem is in the libc, report it using   #\n\
-# the glibcbug script to <bugs@gnu.ai.mit.edu>.  If it is a problem with #\n\
-# your compiler, contact the compiler manufacturer.                      #\n\
-##########################################################################\n",
-	   stderr);
-
-  return 0;
-#endif
 }
 
+
+static const char **
+get_null_defines (void)
+{
+  char line[BUFSIZ], *command;
+  char **result = NULL;
+  size_t result_len = 0;
+  size_t result_max = 0;
+  FILE *input;
+  int first = 1;
+
+  command = malloc (sizeof fmt + sizeof "/dev/null" + 2 * strlen (CC)
+		    + strlen (INC) + strlen (TMPFILE));
+
+  if (command == NULL)
+    {
+      puts ("No more memory.");
+      exit (1);
+    }
+
+  sprintf (command, fmt, "/dev/null", CC, INC, CC, TMPFILE);
+
+  if (system (command))
+    {
+      puts ("system() returned nonzero");
+      return NULL;
+    }
+  free (command);
+  input = fopen (TMPFILE, "r");
+
+  if (input == NULL)
+    {
+      printf ("Could not read %s: ", TMPFILE);
+      perror (NULL);
+      return NULL;
+    }
+
+  while (fgets (line, sizeof line, input) != NULL)
+    {
+      int i, okay = 0;
+      size_t endmac;
+      char *start, *end;
+      if (strlen (line) < 9 || line[7] != ' ')
+	{ /* "#define A" */
+	  printf ("Malformed input, expected '#define MACRO'\ngot '%s'\n",
+		  line);
+	  continue;
+	}
+      if (line[8] == '_')
+	/* It's a safe identifier.  */
+	continue;
+      if (result_len == result_max)
+	{
+	  result_max += 10;
+	  result = realloc (result, result_max * sizeof (char **));
+	  if (result == NULL)
+	    {
+	      puts ("No more memory.");
+	      exit (1);
+	    }
+	}
+      start = &line[8];
+      for (end = start + 1; !isspace (*end) && *end != '\0'; ++end)
+	;
+      result[result_len++] = strndup (start, end - start);
+
+      if (first)
+	{
+	  fputs ("The following identifiers will be ignored since the compiler defines them\nby default:\n", stdout);
+	  first = 0;
+	}
+      puts (result[result_len - 1]);
+    }
+  fclose (input);
+  remove (TMPFILE);
+
+  return (const char **) result;
+}
+
+
 static int
-check_header (const char *file_name)
+check_header (const char *file_name, const char **except)
 {
   char line[BUFSIZ], *command;
   FILE *input;
   int result = 0;
-  static const char fmt[] = "\
-echo \"#include <%s>\" |\
-%s -E -dM -ansi -pedantic %s -D_LIBC -I. -I `%s --print-prog-name=include` -\
-> %s";
 
   command = malloc (sizeof fmt + strlen (file_name) + 2 * strlen (CC)
 		    + strlen (INC) + strlen (TMPFILE));
@@ -260,6 +337,7 @@ echo \"#include <%s>\" |\
     {
       int i, okay = 0;
       size_t endmac;
+      const char **cpp;
       if (strlen (line) < 9 || line[7] != ' ')
 	{ /* "#define A" */
 	  printf ("Malformed input, expected '#define MACRO'\ngot '%s'\n",
@@ -278,7 +356,7 @@ echo \"#include <%s>\" |\
 	continue;
       for (i = 0; i < NUMBER_OF_MACROS; ++i)
 	{
-	  if (!strncmp (line+8, macros[i], strlen (macros[i])))
+	  if (!strncmp (line + 8, macros[i], strlen (macros[i])))
 	    {
 	      ++okay;
 	      break;
@@ -305,6 +383,18 @@ echo \"#include <%s>\" |\
 	      break;
 	    }
 	}
+      if (okay)
+	continue;
+      if (except != NULL)
+	for (cpp = except; *cpp != NULL; ++cpp)
+	  {
+	    size_t len = strlen (*cpp);
+	    if (!strncmp (line + 8, *cpp, len) && isspace (line[8 + len]))
+	      {
+		++okay;
+		break;
+	      }
+	  }
       if (!okay)
 	{
 	  fputs (line, stdout);