Upadte.cvs/libc-ud-960827cvs/libc-960828

Tue Aug 27 17:45:21 1996  Ulrich Drepper  <drepper@cygnus.com>

	* Makerules: Add some test for correct version of GNU Make.

	* io/fcntl.h: Undo change from Mon Aug 26 22:22:17 1996.
	* sysdeps/unix/sysv/linux/fcntlbits.h: Place macros here instead.

	* sysdeps/generic/dl-sysdep.c: Initialize break address to
	avoid overwriting last page (OK, Roland).

Tue Aug 27 16:20:37 1996  Ulrich Drepper  <drepper@cygnus.com>

	* resolv/resolv.h: Update from BIND-4.9.5-T3A.
	* resolv/arpa/nameser.h: Likewise.
	* resolv/res_init.c: Likewise.
	* resolv/res_debug.c: Likewise.
	* resolv/res_mkquery.c: Likewise.

Tue Aug 27 15:47:04 1996  Ulrich Drepper  <drepper@cygnus.com>

	* elf/dl-error.c (catch): Define errstring element not as const.
	(_dl_catch_error): ERRSTRING argument is not const pointer.
	Initialize *ERRSTRING and *OBJNAME separately.
	* elf/link.h: Change prototype for `_dl_catch_error'.

	* elf/dl-load.c (_dl_map_object): Use separate variable for
	copied NAME to avoid `const' warning.

	* elf/dlerror.c: Make `last_errstring' variable not const pointer.

	* elf/rtld.c: Implement reading of /etc/ld.so.preload.  This
	provides preloading even for SUID binaries.
	Add some more casts to avoid signed<->unsigned warnings.

Tue Aug 27 15:40:28 1996  NIIBE Yutaka  <gniibe@mri.co.jp>

	* posix/sys/types.h: Define loff_t.
	* sysdeps/unix/sysv/linux/gnu/types.h: Define __loff_t.

Mon Aug 26 16:31:33 1996  Thomas Bushnell, n/BSG  <thomas@gnu.ai.mit.edu>

	* sysdeps/mach/hurd/setitimer.c (setitimer_locked): Tolerate NEW
	being null; in that case don't touch the timer at all (but do
	return something in OLD if necessary).

Mon Aug 26 13:35:16 1996  Thomas Bushnell, n/BSG  <thomas@gnu.ai.mit.edu>

	* sysdeps/mach/hurd/i386/init-first.c (__libc_multiple_libcs): New
 	variable.
	* sysdeps/i386/init-first.c: Likewise.
	* sysdeps/stub/init-first.c: Likewise.

5 files changed, 38 insertions, 10 deletions

diff --git a/sysdeps/alpha/dl-machine.h b/sysdeps/alpha/dl-machine.h
index 2bf8f9b7ec..3704c25c3c 100644
--- a/sysdeps/alpha/dl-machine.h
+++ b/sysdeps/alpha/dl-machine.h
@@ -217,7 +217,11 @@ _dl_start_user:
 	jsr	$26, ($0)
 	ldgp	$gp, 0($26)
 	br	1b
-2:	/* Pass our finalizer function to the user in $0. */
+2:	/* Clear the startup flag.  */
+	.set at
+	stl	$31, _dl_starting_up
+	.set noat
+	/* Pass our finalizer function to the user in $0. */
 	lda	$0, _dl_fini
 	/* Jump to the user's entry point.  */
 	mov	$9, $27
diff --git a/sysdeps/generic/machine-gmon.h b/sysdeps/generic/machine-gmon.h
index 115962a601..43bf62d663 100644
--- a/sysdeps/generic/machine-gmon.h
+++ b/sysdeps/generic/machine-gmon.h
@@ -46,6 +46,6 @@ static inline void mcount_internal (frompc, selfpc)
 #define MCOUNT \
 void _mcount (void)							      \
 {									      \
-  mcount_internal ((u_long) __builtin_return_address (0),		      \
-		   (u_long) __builtin_return_address (1));		      \
+  mcount_internal ((u_long) __builtin_return_address (1),		      \
+		   (u_long) __builtin_return_address (0));		      \
 }
diff --git a/sysdeps/generic/sbrk.c b/sysdeps/generic/sbrk.c
index f63195adb3..d3ea705294 100644
--- a/sysdeps/generic/sbrk.c
+++ b/sysdeps/generic/sbrk.c
@@ -38,8 +38,22 @@ __sbrk (ptrdiff_t increment)
      instances of __brk and __sbrk can share the heap, returning
      interleaved pieces of it.  */
   if (__curbrk == NULL || __libc_multiple_libcs)
-    if (__brk (0) < 0)
-      return (void *) -1;
+    {
+      extern void _end;
+
+      if (__brk (0) < 0)		/* Initialize the break.  */
+	return (void *) -1;
+
+      /* Align break address to page boundary if not happened before.  */
+      if (!__libc_multiple_libcs && __curbrk == &_end)
+	{
+	  size_t pg = __getpagesize ();
+	  ptrdiff_t rest = pg - ((&_end - (void *) 0) & (pg - 1));
+
+	  if (__brk (__curbrk + rest) < 0)
+	    return (void *) -1;
+	}
+    }
 
   if (increment == 0)
     return __curbrk;
diff --git a/sysdeps/mach/hurd/getcwd.c b/sysdeps/mach/hurd/getcwd.c
index daa67fb858..4df2524afb 100644
--- a/sysdeps/mach/hurd/getcwd.c
+++ b/sysdeps/mach/hurd/getcwd.c
@@ -229,8 +229,12 @@ _hurd_canonicalize_directory_name_internal (file_t thisdir,
 		      free (file_name);
 		      return NULL;
 		    }
-		  file_namep = &buf[file_namep - file_name];
+		  file_namep = &buf[file_namep - file_name + size / 2];
 		  file_name = buf;
+		  /* Move current contents up to the end of the buffer.
+		     This is guaranteed to be non-overlapping.  */
+		  memcpy (file_namep, file_namep - size / 2,
+			  file_name + size - file_namep);
 		}
 	    }
 	  file_namep -= d->d_namlen;
diff --git a/sysdeps/posix/profil.c b/sysdeps/posix/profil.c
index 8e34b3564f..a6786b1a13 100644
--- a/sysdeps/posix/profil.c
+++ b/sysdeps/posix/profil.c
@@ -37,7 +37,13 @@ static u_int pc_scale;
 static inline void
 profil_count (void *pc)
 {
-  size_t i = ((pc - pc_offset - (void *) 0) / 2) * pc_scale / 65536;
+  size_t i = (pc - pc_offset - (void *) 0) / 2;
+
+  if (sizeof (unsigned long long int) > sizeof (size_t))
+    i = (unsigned long long int) i * pc_scale / 65536;
+  else
+    i = i / 65536 * pc_scale + i % 65536 * pc_scale / 65536;
+
   if (i < nsamples)
     ++samples[i];
 }
@@ -65,11 +71,11 @@ profil (u_short *sample_buffer, size_t size, size_t offset, u_int scale)
       if (samples == NULL)
 	/* Wasn't turned on.  */
 	return 0;
-      samples = NULL;
 
-      if (sigaction (SIGPROF, &oact, NULL) < 0)
+      if (setitimer (ITIMER_PROF, &otimer, NULL) < 0)
 	return -1;
-      return setitimer (ITIMER_PROF, &otimer, NULL);
+      samples = NULL;
+      return sigaction (SIGPROF, &oact, NULL);
     }
 
   samples = sample_buffer;