update from main archive 970202 cvs/libc-970203

1997-02-03 02:33  Ulrich Drepper  <drepper@cygnus.com>

	* elf/dl-deps.c (_dl_map_object_deps): Handle multiple AUXILIARY
	entries.  This is still no complete implementation since AUXILIARY
	entries in other shared objects are not yet handled.

	* libio/libio.h (_IO_cookie_io_functions_t): Move to C++ protected
	place.

	* po/es.po: Update.
	* po/fr.po: Update.
	* po/nl.po: Update.

	* time/Makefile: Better cross-compile support.  Avoid test which
	cannot be run.
	(CFLAGS-tzset.c): New variable.  Overwrite TZDEFAULT value from
	tzfile.h file.
	* time/tzfile.c (__tzfile_read): Allow TZDEFAULT start with '/' even
	in SUID programs.
	* time/tzset.c (__tzset_internal): If TZ envvar is not set use same
	default values as in tzfile.c.

	* elf/dynamic-link.h (elf_get_dynamic_info): Recognize versioning
	tags.
	* elf/link.h: Likewise.
	* elf/elf.h: Add tag definitions and data structures for versioning.

1997-02-03 02:17  Ulrich Drepper  <drepper@cygnus.com>

	* nis/rpcsvc/yp.x (struct ypresp_key_val): There is not stupid
	"Sun bug".  This is the order of elements also used by 4.4BSD.
	* nis/rpcsvc/yp.h: Likewise.
	Reported by HJ Lu.

1997-02-02 12:13  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* sunrpc/Makefile ($(objpfx)x%.h, $(objpfx)x%.c): Add "@:" as
	action.

	* Makefile (install): Pass installation directories as arguments
	to ldconfig.

1997-02-02 23:15  Ulrich Drepper  <drepper@cygnus.com>

	* malloc/malloc.c (__after_morecore_hook): New variable.
	(malloc_extend_top): Call __after_morecore_hook if set.
	(main_trim): Likewise.
	* malloc/malloc.h: Add declaration of __after_morecore_hook.
	Suggested by Marcus Daniels.

1997-02-02 23:00  Marcus G. Daniels  <marcus@tdb.com>

	* malloc/malloc.c (rEALLOc): Protect tsd_setspecific call by
	#ifndef NO_THREADS.
	(mallinfo): Likewise.

	* malloc/malloc.c (__morecore): Make external since it is used in
	programs.

1997-02-02 15:10  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/statbuf.h (struct stat): Make st_dev field
	unsigned.

1997-02-01 23:36  Richard Henderson  <rth@tamu.edu>

	* sysdeps/alpha/stxncpy.S ($unaligned) [src % 8 > dst % 8]: Don't
	use t6 as a temporary; it contains bits we still need in $u_head.

1997-01-31 15:05  John Bowman  <bowman@ipp-garching.mpg.de>

	* sysdeps/i386/fpu/__math.h [__USE_MISC]: Don't declare prototypes
	using __ prefix.  Add prototype for log1p.

2 files changed, 20 insertions, 2 deletions

diff --git a/malloc/malloc.c b/malloc/malloc.c
index 57867c90c6..0380527f64 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -820,12 +820,12 @@ do {                                                                          \
 #if __STD_C
 
 Void_t * __default_morecore (ptrdiff_t);
-static Void_t *(*__morecore)(ptrdiff_t) = __default_morecore;
+Void_t *(*__morecore)(ptrdiff_t) = __default_morecore;
 
 #else
 
 Void_t * __default_morecore ();
-static Void_t *(*__morecore)() = __default_morecore;
+Void_t *(*__morecore)() = __default_morecore;
 
 #endif
 
@@ -1615,6 +1615,7 @@ __malloc_ptr_t weak_variable (*__realloc_hook)
  __MALLOC_P ((__malloc_ptr_t __ptr, size_t __size)) = realloc_hook_ini;
 __malloc_ptr_t weak_variable (*__memalign_hook)
  __MALLOC_P ((size_t __size, size_t __alignment)) = memalign_hook_ini;
+void weak_variable (*__after_morecore_hook) __MALLOC_P ((void)) = NULL;
 
 /* Activate a standard set of debugging hooks. */
 void
@@ -2215,6 +2216,10 @@ static void malloc_extend_top(ar_ptr, nb) arena *ar_ptr; INTERNAL_SIZE_T nb;
         (brk < old_end && old_top != initial_top(&main_arena)))
       return;
 
+    /* Call the `morecore' hook if necessary.  */
+    if (__after_morecore_hook)
+      (*__after_morecore_hook) ();
+
     sbrked_mem += sbrk_size;
 
     if (brk == old_end) { /* can just add bytes to current top */
@@ -2243,6 +2248,10 @@ static void malloc_extend_top(ar_ptr, nb) arena *ar_ptr; INTERNAL_SIZE_T nb;
       new_brk = (char*)(MORECORE (correction));
       if (new_brk == (char*)(MORECORE_FAILURE)) return;
 
+      /* Call the `morecore' hook if necessary.  */
+      if (__after_morecore_hook)
+	(*__after_morecore_hook) ();
+
       sbrked_mem += correction;
 
       top(&main_arena) = (mchunkptr)brk;
@@ -2914,8 +2923,10 @@ Void_t* rEALLOc(oldmem, bytes) Void_t* oldmem; size_t bytes;
   (void)mutex_lock(&ar_ptr->mutex);
 #endif
 
+#ifndef NO_THREADS
   /* As in malloc(), remember this arena for the next allocation. */
   tsd_setspecific(arena_key, (Void_t *)ar_ptr);
+#endif
 
   newp = chunk_realloc(ar_ptr, oldp, oldsize, nb);
 
@@ -3421,6 +3432,10 @@ main_trim(pad) size_t pad;
 
   new_brk = (char*)(MORECORE (-extra));
 
+  /* Call the `morecore' hook if necessary.  */
+  if (__after_morecore_hook)
+    (*__after_morecore_hook) ();
+
   if (new_brk == (char*)(MORECORE_FAILURE)) { /* sbrk failed? */
     /* Try to figure out what we have */
     current_brk = (char*)(MORECORE (0));
@@ -3703,7 +3718,9 @@ struct mallinfo mALLINFo()
   struct mallinfo mi;
   Void_t *vptr = NULL;
 
+#ifndef NO_THREADS
   tsd_getspecific(arena_key, vptr);
+#endif
   malloc_update_mallinfo((vptr ? (arena*)vptr : &main_arena), &mi);
   return mi;
 }
diff --git a/malloc/malloc.h b/malloc/malloc.h
index 5794f26663..b27d06252c 100644
--- a/malloc/malloc.h
+++ b/malloc/malloc.h
@@ -181,6 +181,7 @@ extern __malloc_ptr_t (*__realloc_hook) __MALLOC_P ((__malloc_ptr_t __ptr,
 						     size_t __size));
 extern __malloc_ptr_t (*__memalign_hook) __MALLOC_P ((size_t __size,
 						      size_t __alignment));
+extern void (*__after_morecore_hook) __MALLOC_P ((void));
 
 /* Activate a standard set of debugging hooks. */
 extern void __malloc_check_init __MALLOC_P ((void));