update from main archive 961020cvs/libc-961021

Mon Oct 21 01:32:36 1996  Ulrich Drepper  <drepper@cygnus.com>

	* elf/rtld.c (dl_main): Move initialization of `_dl_starting_up'
	to beginning of function.  So libc functions can use this flag.
	* sysdeps/generic/_strerror.c: Don't use dgettext for message
	translation while `_dl_starting_up' is nonzero.

	* elf/dl-deps.c (_dl_map_object_deps): Add new parameter
 	TRACE_MODE.
	Pass parameter value to _dl_map_object.
	* elf/dl-load (_dl_map_object): Add new parameter TRACE_MODE.
	If TRACE_MODE is nonzero don#t signal error when shared lib
	is not found.  Instead create fake entry for link map.
	* dl-open.c (dl-open): Pass 0 for new argument to _dl_map_object.
	* dl-runtime.c (_dl_object_relocation_scope): Pass 0 for new
	argument to _dl_map_object_deps.
	* elf/link.h: Add new parameter TRACE_MODE for prototypes of
	_dl_map_object and _dl_map_object_deps.
	* elf/rtld.c (dl_main): Pass 0 for new argument to _dl_map_object
	and _dl_map_object_deps.
	When mode == trace test for l_opencount == 0 before printing
	link information since this means the lib is not found.

Sun Oct 20 22:19:58 1996  Ulrich Drepper  <drepper@cygnus.com>

	* rpm/template: Add INSTALL to %doc line to follow copyright
	restrictions which demand the distribution of the copyright
	messages in INSTALL even for binary distributions.

	* features.h: Rename to...
	* features.h.in: ...this.  Change value of __GNU_LIBRARY__ to 2
	(for major version numberof package) and add __GNU_LIBRARY_MINOR__
	and __GNU_LIBRARY_INTERFACE__.
	* Makefile ($(objpfx)features.h): New rule to generate features.h
	from template features.h.in.

	* sysdeps/unix/sysv/linux/getsysstats.c: Include <paths.h>.

Sun Oct 20 00:00:13 1996  Richard Henderson  <rth@tamu.edu>

	* locale/programs/linereader.c (lr_open): Cast away const before free.
	(lr_close): Likewise.

	* misc/mntent.h: Move _PATH_MNTTAB & _PATH_MOUNTED to paths.h.
	* misc/paths.h: Move to ...
	* sysdeps/generic/paths.h: ... here.
	* paths.h: Remove.
	* sysdeps/unix/sysv/linux/paths.h: New file.  Correct _PATH_STDPATH,
	_PATH_MAILDIR, _PATH_MOUNTED, _PATH_UNIX to comply with the fsstd.

	* nss/nss_db/db-netgrp.h: Include <string.h>.

	* stdio-common/psignal.c: De-ansidecl-ify.  Allow NULL entries in
	_sys_siglist, which result in the "Unknown signal" message.
	* string/strsignal.c: Likewise.
	* sysdeps/generic/Makefile [stdio-common]: If $(inhibit-siglist),
	don't auto-generate siglist.c.
	* sysdeps/unix/sysv/linux/Makefile [stdio-common]: Set inhibit-siglist.
	* sysdeps/unix/sysv/linux/siglist.c: New file.  Not needing to
	autogenerate makes bootstrapping and cross-compiling much easier.
	* sysdeps/unix/sysv/linux/siglist.h: New file.

	* stdlib/longlong.h: Prototype __udiv_qrnnd.

	* sysdeps/unix/sysv/linux/alpha/Makefile (sysdep_headers): Remove
	sys/io.h.  It is already added in .../linux/Makefile.

	* sysdeps/unix/sysv/linux/alpha/sigaction.h: New file.
	* sysdeps/unix/sysv/linux/alpha/signum.h: New file.
	* sysdeps/unix/sysv/linux/alpha/statbuf.h: New file.

Sun Oct 20 17:17:12 1996  Ulrich Drepper  <drepper@cygnus.com>

	Add implementation of POSIX.1g function getaddrinfo.
	* posix/Makefile (routines): Add getaddrinfo.
	* sysdeps/posix/getaddrinfo.c.: New file.  Add implementation by
 	Craig Metz.
	* sysdeps/stub/getaddrinfo.c: New file.  Stub implementation.
	* resolv/netdb.h [__USE_POSIX]: Add getaddrinfo prototypes and
	related constants and structures.

Sun Oct 20 13:02:34 1996  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/stub/lockfile.c: Rename functions to __internal_*.
	Make all old names weak alises so that they can be replaced
	by libpthread.

	* stdio-common/vfprintf.c: Only declare __flockfile and __funlockfile
	for !USE_IN_LIBIO.
	[USE_IN_LIBIO]: Call _IO_flockfile and _IO_funlockfile instead of
	__flockfile and __funlockfile.
	Reported by NIIBE Yutaka.

	* crypt/md5.c: Change form of copyright message according to GNITS
	rules.
	Add warning for requirement on RESBUF parameter for `md5_finish_ctx'
	and `md5_read_ctx' function.
	* crypt/md5.h: Likewise.

	* grp/testgrp.c: Don't use perror for error cases since getgr* and
	getpw* functions do not return usable error codes.

Sun Oct 19 23:05:32 1996  Jim Meyering  <meyering@asic.sc.ti.com>

	* crypt/md5.c (md5_process_bytes): Used casting for pointer
 	arithmetic.

Sun Oct 20 03:53:23 1996  Ulrich Drepper  <drepper@cygnus.com>

	* sunrpc/Makefile (others): Remove portmap here, too.

6 files changed, 54 insertions, 27 deletions

diff --git a/elf/dl-deps.c b/elf/dl-deps.c
index 8521c50d25..c310a5b82d 100644
--- a/elf/dl-deps.c
+++ b/elf/dl-deps.c
@@ -24,7 +24,8 @@ Cambridge, MA 02139, USA.  */
 
 void
 _dl_map_object_deps (struct link_map *map,
-		     struct link_map **preloads, unsigned int npreloads)
+		     struct link_map **preloads, unsigned int npreloads,
+		     int trace_mode)
 {
   struct list
     {
@@ -75,7 +76,7 @@ _dl_map_object_deps (struct link_map *map,
 		struct link_map *dep
 		  = _dl_map_object (l, strtab + d->d_un.d_val,
 				    l->l_type == lt_executable ? lt_library :
-				    l->l_type);
+				    l->l_type, trace_mode);
 
 		if (dep->l_reserved)
 		  /* This object is already in the search list we are
diff --git a/elf/dl-load.c b/elf/dl-load.c
index 9dfc961a2f..1a86cccb89 100644
--- a/elf/dl-load.c
+++ b/elf/dl-load.c
@@ -477,7 +477,8 @@ open_path (const char *name, size_t namelen,
 /* Map in the shared object file NAME.  */
 
 struct link_map *
-_dl_map_object (struct link_map *loader, const char *name, int type)
+_dl_map_object (struct link_map *loader, const char *name, int type,
+		int trace_mode)
 {
   int fd;
   char *realname;
@@ -582,7 +583,26 @@ _dl_map_object (struct link_map *loader, const char *name, int type)
     }
 
   if (fd == -1)
-    _dl_signal_error (errno, name, "cannot open shared object file");
+    {
+      if (trace_mode)
+	{
+	  /* We haven't found an appropriate library.  But since we
+	     are only interested in the list of libraries this isn't
+	     so severe.  Fake an entry with all the information we
+	     have (in fact only the name).  */
+
+	  /* Enter the new object in the list of loaded objects.  */
+	  if ((name_copy = local_strdup (name)) == NULL
+	      || (l = _dl_new_object (name_copy, name, type)) == NULL)
+	    _dl_signal_error (ENOMEM, name,
+			      "cannot create shared object descriptor");
+	  /* We use an opencount of 0 as a sign for the faked entry.  */
+	  l->l_opencount = 0;
+	  l->l_reserved = 0;
+	}
+      else
+	_dl_signal_error (errno, name, "cannot open shared object file");
+    }
 
   return _dl_map_object_from_fd (name_copy, fd, realname, loader, type);
 }
diff --git a/elf/dl-open.c b/elf/dl-open.c
index 25f2ba6fab..8f4f9f5015 100644
--- a/elf/dl-open.c
+++ b/elf/dl-open.c
@@ -46,13 +46,13 @@ _dl_open (const char *file, int mode)
   struct r_debug *r;
 
   /* Load the named object.  */
-  new = _dl_map_object (NULL, file, lt_loaded);
+  new = _dl_map_object (NULL, file, lt_loaded, 0);
   if (new->l_searchlist)
     /* It was already open.  */
     return new;
 
   /* Load that object's dependencies.  */
-  _dl_map_object_deps (new, NULL, 0);
+  _dl_map_object_deps (new, NULL, 0, 0);
 
 
   /* Relocate the objects loaded.  We do this in reverse order so that copy
diff --git a/elf/dl-runtime.c b/elf/dl-runtime.c
index 4e7b5296d4..2a186f2d0b 100644
--- a/elf/dl-runtime.c
+++ b/elf/dl-runtime.c
@@ -41,7 +41,7 @@ _dl_object_relocation_scope (struct link_map *l)
 
       if (! l->l_searchlist)
 	/* We must construct the searchlist for this object.  */
-	_dl_map_object_deps (l, NULL, 0);
+	_dl_map_object_deps (l, NULL, 0, 0);
 
       /* The primary scope is this object itself and its
 	 dependencies.  */
diff --git a/elf/link.h b/elf/link.h
index a6281726c3..1e3828afbb 100644
--- a/elf/link.h
+++ b/elf/link.h
@@ -195,7 +195,8 @@ extern int _dlerror_run (void (*operate) (void));
    LOADER's DT_RPATH is used in searching for NAME.
    If the object is already opened, returns its existing map.  */
 extern struct link_map *_dl_map_object (struct link_map *loader,
-					const char *name, int type);
+					const char *name, int type,
+					int trace_mode);
 
 /* Call _dl_map_object on the dependencies of MAP, and set up
    MAP->l_searchlist.  PRELOADS points to a vector of NPRELOADS previously
@@ -203,7 +204,7 @@ extern struct link_map *_dl_map_object (struct link_map *loader,
    but before its dependencies.  */
 extern void _dl_map_object_deps (struct link_map *map,
 				 struct link_map **preloads,
-				 unsigned int npreloads);
+				 unsigned int npreloads, int trace_mode);
 
 /* Cache the locations of MAP's hash table.  */
 extern void _dl_setup_hash (struct link_map *map);
diff --git a/elf/rtld.c b/elf/rtld.c
index 58676924e5..1fae3488d9 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -149,6 +149,9 @@ dl_main (const ElfW(Phdr) *phdr,
 
   mode = getenv ("LD_TRACE_LOADED_OBJECTS") != NULL ? trace : normal;
 
+  /* Set up a flag which tells we are just starting.  */
+  _dl_starting_up = 1;
+
   if (*user_entry == (ElfW(Addr)) &_start)
     {
       /* Ho ho.  We are not the program interpreter!  We are the program
@@ -210,7 +213,7 @@ of this helper program; chances are you did not intend to run this program.\n",
 	{
 	  void doit (void)
 	    {
-	      l = _dl_map_object (NULL, _dl_argv[0], lt_library);
+	      l = _dl_map_object (NULL, _dl_argv[0], lt_library, 0);
 	    }
 	  char *err_str = NULL;
 	  const char *obj_name __attribute__ ((unused));
@@ -223,7 +226,7 @@ of this helper program; chances are you did not intend to run this program.\n",
 	    }
 	}
       else
-	l = _dl_map_object (NULL, _dl_argv[0], lt_library);
+	l = _dl_map_object (NULL, _dl_argv[0], lt_library, 0);
 
       phdr = l->l_phdr;
       phent = l->l_phnum;
@@ -322,7 +325,7 @@ of this helper program; chances are you did not intend to run this program.\n",
 	  char *p;
 	  while ((p = strsep (&list, ":")) != NULL)
 	    {
-	      (void) _dl_map_object (NULL, p, lt_library);
+	      (void) _dl_map_object (NULL, p, lt_library, 0);
 	      ++npreloads;
 	    }
 	}
@@ -378,7 +381,7 @@ of this helper program; chances are you did not intend to run this program.\n",
 	  runp = file;
 	  while ((p = strsep (&runp, ": \t\n")) != NULL)
 	    {
-	      (void) _dl_map_object (NULL, p, lt_library);
+	      (void) _dl_map_object (NULL, p, lt_library, 0);
 	      ++npreloads;
 	    }
 	}
@@ -386,7 +389,7 @@ of this helper program; chances are you did not intend to run this program.\n",
       if (problem != NULL)
 	{
 	  char *p = strndupa (problem, file_size - (problem - file));
-	  (void) _dl_map_object (NULL, p, lt_library);
+	  (void) _dl_map_object (NULL, p, lt_library, 0);
 	}
 
       /* We don't need the file anymore.  */
@@ -412,7 +415,7 @@ of this helper program; chances are you did not intend to run this program.\n",
   /* Load all the libraries specified by DT_NEEDED entries.  If LD_PRELOAD
      specified some libraries to load, these are inserted before the actual
      dependencies in the executable's searchlist for symbol resolution.  */
-  _dl_map_object_deps (l, preloads, npreloads);
+  _dl_map_object_deps (l, preloads, npreloads, mode == trace);
 
 #ifndef MAP_ANON
   /* We are done mapping things, so close the zero-fill descriptor.  */
@@ -459,15 +462,20 @@ of this helper program; chances are you did not intend to run this program.\n",
 	_dl_sysdep_message ("\t", "statically linked\n", NULL);
       else
 	for (l = _dl_loaded->l_next; l; l = l->l_next)
-	  {
-	    char buf[20], *bp;
-	    buf[sizeof buf - 1] = '\0';
-	    bp = _itoa (l->l_addr, &buf[sizeof buf - 1], 16, 0);
-	    while ((size_t) (&buf[sizeof buf - 1] - bp) < sizeof l->l_addr * 2)
-	      *--bp = '0';
-	    _dl_sysdep_message ("\t", l->l_libname, " => ", l->l_name,
-				" (0x", bp, ")\n", NULL);
-	  }
+	  if (l->l_opencount == 0)
+	    /* The library was not found.  */
+	    _dl_sysdep_message ("\t", l->l_libname, " => not found\n", NULL);
+	  else
+	    {
+	      char buf[20], *bp;
+	      buf[sizeof buf - 1] = '\0';
+	      bp = _itoa (l->l_addr, &buf[sizeof buf - 1], 16, 0);
+	      while ((size_t) (&buf[sizeof buf - 1] - bp)
+		     < sizeof l->l_addr * 2)
+		*--bp = '0';
+	      _dl_sysdep_message ("\t", l->l_libname, " => ", l->l_name,
+				  " (0x", bp, ")\n", NULL);
+	    }
 
       if (mode != trace)
 	for (i = 1; i < _dl_argc; ++i)
@@ -563,9 +571,6 @@ of this helper program; chances are you did not intend to run this program.\n",
     _dl_debug_state ();
   }
 
-  /* We finished the intialization and will start up.  */
-  _dl_starting_up = 1;
-
   /* Once we return, _dl_sysdep_start will invoke
      the DT_INIT functions and then *USER_ENTRY.  */
 }