Update. cvs/libc-ud-970414 cvs/libc-970430 cvs/libc-970429 cvs/libc-970428 cvs/libc-970427 cvs/libc-970426 cvs/libc-970425 cvs/libc-970424 cvs/libc-970423 cvs/libc-970422 cvs/libc-970421 cvs/libc-970420 cvs/libc-970419 cvs/libc-970418 cvs/libc-970417 cvs/libc-970416 cvs/libc-970415

1997-04-15 03:14  Ulrich Drepper  <drepper@cygnus.com>

	* wcsmbs/wcsstr.c: Add weak alias wcswcs for Unix98 compliance.

	* math/Makefile (libm-calls): Add s_sincos and s_cproj.
	* math/mathcalls.h: Add prototype for sincos.
	* sysdeps/i386/fpu/__math.h: Warn about restriction on arguments to
	inlined sin and cos function.
	Define functions new in ISO C 9X when __USE_ISOC9X is defined.
	Add optimized version of finite.
	Rewrite sincos function to handle too large arguments.
	* sysdeps/libm-i387/s_cos.S: Better code alignment.
	* sysdeps/libm-i387/s_cosl.S: Likewise.
	* sysdeps/libm-i387/s_sin.S: Likewise.
	* sysdeps/libm-i387/s_sinl.S: Likewise.
	* sysdeps/libm-i387/s_finite.S: Yet better code.
	* sysdeps/libm-i387/s_finitef.S: Likewise.
	* sysdeps/libm-i387/s_sincos.S: New file.
	* sysdeps/libm-i387/s_sincosf.S: New file.
	* sysdeps/libm-i387/s_sincosl.S: New file.
	* sysdeps/libm-ieee754/s_sincos.c: New file.
	* sysdeps/libm-ieee754/s_sincosf.c: New file.
	* sysdeps/libm-ieee754/s_sincosl.c: New file.

	* sysdeps/libm-ieee754/s_ccosh.c: Change to use sincos function.
	* sysdeps/libm-ieee754/s_ccoshf.c: Likewise.
	* sysdeps/libm-ieee754/s_ccoshl.c: Likewise.
	* sysdeps/libm-ieee754/s_cexp.c: Likewise.
	* sysdeps/libm-ieee754/s_cexpf.c: Likewise.
	* sysdeps/libm-ieee754/s_cexpl.c: Likewise.
	* sysdeps/libm-ieee754/s_csinh.c: Likewise.
	* sysdeps/libm-ieee754/s_csinhf.c: Likewise.
	* sysdeps/libm-ieee754/s_csinhl.c: Likewise.
	* sysdeps/libm-ieee754/s_ctan.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanf.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanl.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanh.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanhf.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanhl.c: Likewise.

	* sysdeps/libm-ieee754/s_cosl.c: Correct check for range.
	* sysdeps/libm-ieee754/s_sinl.c: Likewise.

	* sysdeps/libm-ieee754/s_roundtol.c: Fix typos.
	* sysdeps/libm-ieee754/s_roundtoll.c: Likewise.

	* nis/Makefile (services): Mention nisplus before compat.
	* nis/nis_call.c (__do_niscall): Change type of variable server_len
	to prevent warning.
	* nis/nss_compat/compat-grp.c (getgrent_next_file_plusgroup): Add
	cast to prevent warning.
	* nis/nss_compat/compat-pwd.c (getpwent_next_file_plususer): Likewise.
	* nis/nss_compat/compat-spwd.c (getspent_next_file_plususer): Likewise.
	* nis/nss_nisplus/nisplus-hosts.c (_nss_nisplus_parse_hostent): Change
	type of variable `i' to prevent warning.
	* nis/nss_nisplus/nisplus-network.c (_nss_nisplus_parse_netent):
	Likewise.
	* nis/nss_nisplus/nisplus-proto.c (_nss_nisplus_parse_protoent):
	Likewise.
	* nis/nss_nisplus/nisplus-rpc.c (_nss_nisplus_parse_rpcent): Likewise.
	* nis/nss_nisplus/nisplus-service.c (_nss_nisplus_parse_servent):
	Likewise.

	* sysdeps/generic/Dist: Remove old math implementation files.
	* sysdeps/generic/mathimpl.h: Removed.
	* sysdeps/generic/trig.h: Removed.
	* sysdeps/generic/sincos.c: Removed.
	* sysdeps/generic/asincos.c: Removed.
	* sysdeps/generic/exp__E.c: Removed.
	* sysdeps/generic/log__L.c: Removed.

1997-04-13 17:18  Wolfram Gloger  <wmglo@dent.med.uni-muenchen.de>

	* malloc/malloc.c (fREe): Small optimization.  Before returning,
	add fast check whether the heap containing top can go away.

1997-04-11 16:46  Wolfram Gloger  <wmglo@dent.med.uni-muenchen.de>

	* malloc/malloc.c (mALLOc, rEALLOc, cALLOc, mEMALIGn): When
	failing to allocate a new chunk, also try the main_arena.  It may
	be that we are only running out of mmapped regions, and other
	arenas cannot be enlarged sufficiently.
	(new_heap, malloc_extend_top): Handle top_pad more consistently,
	i.e. only in new_heap().

1997-04-13 21:10  Philip Blundell  <pjb27@cl.cam.ac.uk>

	* sysdeps/posix/Makefile: Don't try to build and run mk-stdiolim
	if cross-compiling.

	* configure.in: Recognise "...linuxaout" OS names and turn off ELF.

	* configure.in: Add ARM support.
	* sysdeps/arm/Implies: New file.
	* sysdeps/arm/__longjmp.S: New file.
	* sysdeps/arm/bsd-_setjmp: New file.
	* sysdeps/arm/bsd-setjmp: New file.
	* sysdeps/arm/bytesex.h: New file.
	* sysdeps/arm/fpu_control.h: New file.
	* sysdeps/arm/jmp_buf.h: New file.
	* sysdeps/arm/setjmp.h: New file.
	* sysdeps/arm/sysdep.h: New file.
	* sysdeps/unix/arm/config.h: New file.

1997-04-14 04:03  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/libm-ieee754/s_cproj.c: New file.
	* sysdeps/libm-ieee754/s_cprojf.c: New file.
	* sysdeps/libm-ieee754/s_cprojl.c: New file.

1 files changed, 89 insertions, 29 deletions

diff --git a/malloc/malloc.c b/malloc/malloc.c
index f86d2df5ed..5b16a0ac20 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -1801,11 +1801,16 @@ new_heap(size) size_t size;
   unsigned long ul;
   heap_info *h;
 
-  if(size < HEAP_MIN_SIZE)
+  if(size+top_pad < HEAP_MIN_SIZE)
     size = HEAP_MIN_SIZE;
-  size = (size + page_mask) & ~page_mask;
-  if(size > HEAP_MAX_SIZE)
+  else if(size+top_pad <= HEAP_MAX_SIZE)
+    size += top_pad;
+  else if(size > HEAP_MAX_SIZE)
     return 0;
+  else
+    size = HEAP_MAX_SIZE;
+  size = (size + page_mask) & ~page_mask;
+
   p1 = (char *)MMAP(HEAP_MAX_SIZE<<1, PROT_NONE);
   if(p1 == (char *)-1)
     return 0;
@@ -2228,9 +2233,11 @@ 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;
 
+#if defined(_LIBC) || defined(MALLOC_HOOKS)
     /* Call the `morecore' hook if necessary.  */
     if (__after_morecore_hook)
       (*__after_morecore_hook) ();
+#endif
 
     sbrked_mem += sbrk_size;
 
@@ -2260,9 +2267,11 @@ 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;
 
+#if defined(_LIBC) || defined(MALLOC_HOOKS)
       /* Call the `morecore' hook if necessary.  */
       if (__after_morecore_hook)
-	(*__after_morecore_hook) ();
+        (*__after_morecore_hook) ();
+#endif
 
       sbrked_mem += correction;
 
@@ -2303,7 +2312,7 @@ static void malloc_extend_top(ar_ptr, nb) arena *ar_ptr; INTERNAL_SIZE_T nb;
     }
 
     /* A new heap must be created. */
-    heap = new_heap(nb + top_pad + (MINSIZE + sizeof(*heap)));
+    heap = new_heap(nb + (MINSIZE + sizeof(*heap)));
     if(!heap)
       return;
     heap->ar_ptr = ar_ptr;
@@ -2425,12 +2434,21 @@ Void_t* mALLOc(bytes) size_t bytes;
 #endif
 
   nb = request2size(bytes);
-  arena_get(ar_ptr, nb + top_pad);
+  arena_get(ar_ptr, nb);
   if(!ar_ptr)
     return 0;
   victim = chunk_alloc(ar_ptr, nb);
   (void)mutex_unlock(&ar_ptr->mutex);
-  return victim ? chunk2mem(victim) : 0;
+  if(!victim) {
+    /* Maybe the failure is due to running out of mmapped areas. */
+    if(ar_ptr != &main_arena) {
+      (void)mutex_lock(&main_arena.mutex);
+      victim = chunk_alloc(&main_arena, nb);
+      (void)mutex_unlock(&main_arena.mutex);
+    }
+    if(!victim) return 0;
+  }
+  return chunk2mem(victim);
 }
 
 static mchunkptr
@@ -2792,8 +2810,6 @@ chunk_free(ar_ptr, p) arena *ar_ptr; mchunkptr p;
     return;
   }
 
-  set_head(next, nextsz);                    /* clear inuse bit */
-
   islr = 0;
 
   if (!(hd & PREV_INUSE))                    /* consolidate backward */
@@ -2820,12 +2836,29 @@ chunk_free(ar_ptr, p) arena *ar_ptr; mchunkptr p;
     }
     else
       unlink(next, bck, fwd);
+
+    next = chunk_at_offset(p, sz);
   }
+  else
+    set_head(next, nextsz);                  /* clear inuse bit */
 
   set_head(p, sz | PREV_INUSE);
-  set_foot(p, sz);
+  next->prev_size = sz;
   if (!islr)
     frontlink(ar_ptr, p, sz, idx, bck, fwd);
+
+#ifndef NO_THREADS
+  /* Check whether the heap containing top can go away now. */
+  if(next->size < MINSIZE &&
+     (unsigned long)sz > trim_threshold &&
+     ar_ptr != &main_arena) {                /* fencepost */
+    heap_info* heap = heap_for_ptr(top(ar_ptr));
+
+    if(top(ar_ptr) == chunk_at_offset(heap, sizeof(*heap)) &&
+       heap->prev == heap_for_ptr(p))
+      heap_trim(heap, top_pad);
+  }
+#endif
 }
 
 
@@ -3063,8 +3096,16 @@ arena* ar_ptr; mchunkptr oldp; INTERNAL_SIZE_T oldsize, nb;
 
     newp = chunk_alloc (ar_ptr, nb);
 
-    if (newp == 0)  /* propagate failure */
-      return 0;
+    if (newp == 0) {
+      /* Maybe the failure is due to running out of mmapped areas. */
+      if (ar_ptr != &main_arena) {
+        (void)mutex_lock(&main_arena.mutex);
+        newp = chunk_alloc(&main_arena, nb);
+        (void)mutex_unlock(&main_arena.mutex);
+      }
+      if (newp == 0) /* propagate failure */
+        return 0;
+    }
 
     /* Avoid copy if newp is next chunk after oldp. */
     /* (This can only happen when new chunk is sbrk'ed.) */
@@ -3159,7 +3200,16 @@ Void_t* mEMALIGn(alignment, bytes) size_t alignment; size_t bytes;
     return 0;
   p = chunk_align(ar_ptr, nb, alignment);
   (void)mutex_unlock(&ar_ptr->mutex);
-  return p ? chunk2mem(p) : NULL;
+  if(!p) {
+    /* Maybe the failure is due to running out of mmapped areas. */
+    if(ar_ptr != &main_arena) {
+      (void)mutex_lock(&main_arena.mutex);
+      p = chunk_align(&main_arena, nb, alignment);
+      (void)mutex_unlock(&main_arena.mutex);
+    }
+    if(!p) return 0;
+  }
+  return chunk2mem(p);
 }
 
 static mchunkptr
@@ -3329,31 +3379,34 @@ Void_t* cALLOc(n, elem_size) size_t n; size_t elem_size;
   /* Only clearing follows, so we can unlock early. */
   (void)mutex_unlock(&ar_ptr->mutex);
 
-  if (p == 0)
-    return 0;
-  else
-  {
-    mem = chunk2mem(p);
+  if (p == 0) {
+    /* Maybe the failure is due to running out of mmapped areas. */
+    if(ar_ptr != &main_arena) {
+      (void)mutex_lock(&main_arena.mutex);
+      p = chunk_alloc(&main_arena, sz);
+      (void)mutex_unlock(&main_arena.mutex);
+    }
+    if (p == 0) return 0;
+  }
+  mem = chunk2mem(p);
 
-    /* Two optional cases in which clearing not necessary */
+  /* Two optional cases in which clearing not necessary */
 
 #if HAVE_MMAP
-    if (chunk_is_mmapped(p)) return mem;
+  if (chunk_is_mmapped(p)) return mem;
 #endif
 
-    csz = chunksize(p);
+  csz = chunksize(p);
 
 #if MORECORE_CLEARS
-    if (p == oldtop && csz > oldtopsize)
-    {
-      /* clear only the bytes from non-freshly-sbrked memory */
-      csz = oldtopsize;
-    }
+  if (p == oldtop && csz > oldtopsize) {
+    /* clear only the bytes from non-freshly-sbrked memory */
+    csz = oldtopsize;
+  }
 #endif
 
-    MALLOC_ZERO(mem, csz - SIZE_SZ);
-    return mem;
-  }
+  MALLOC_ZERO(mem, csz - SIZE_SZ);
+  return mem;
 }
 
 /*
@@ -3444,9 +3497,11 @@ main_trim(pad) size_t pad;
 
   new_brk = (char*)(MORECORE (-extra));
 
+#if defined(_LIBC) || defined(MALLOC_HOOKS)
   /* Call the `morecore' hook if necessary.  */
   if (__after_morecore_hook)
     (*__after_morecore_hook) ();
+#endif
 
   if (new_brk == (char*)(MORECORE_FAILURE)) { /* sbrk failed? */
     /* Try to figure out what we have */
@@ -3702,7 +3757,11 @@ void mALLOC_STATs()
     ar_ptr = ar_ptr->next;
     if(ar_ptr == &main_arena) break;
   }
+#if HAVE_MMAP
   fprintf(stderr, "Total (incl. mmap):\n");
+#else
+  fprintf(stderr, "Total:\n");
+#endif
   fprintf(stderr, "system bytes     = %10u\n", system_b);
   fprintf(stderr, "in use bytes     = %10u\n", in_use_b);
 #ifdef NO_THREADS
@@ -3710,6 +3769,7 @@ void mALLOC_STATs()
 #endif
 #if HAVE_MMAP
   fprintf(stderr, "max mmap regions = %10u\n", (unsigned int)max_n_mmaps);
+  fprintf(stderr, "max mmap bytes   = %10lu\n", max_mmapped_mem);
 #endif
 #if THREAD_STATS
   fprintf(stderr, "heaps created    = %10d\n",  stat_n_heaps);