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.

15 files changed, 139 insertions, 35 deletions

diff --git a/ChangeLog b/ChangeLog
index 2ea44b01e1..875cabc365 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,42 @@
+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 22:22:17 1996  Ulrich Drepper  <drepper@cygnus.com>
 
 	* io/fcntl.h: Add definition for BSD F* macros.
@@ -20,11 +59,6 @@ Fri Aug 16 21:17:50 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.
 	* Makerules (o-iterator-doit): Simplify reference to autolock
 	script.
 
-Fri Aug 16 21:17:50 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
-
-	* Makerules (o-iterator-doit): Simplify reference to autolock
-	script.
-
 Sat Aug 24 15:27:41 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
 
 	* sysdeps/mach/hurd/getcwd.c
@@ -49,6 +83,19 @@ Sun Aug 25 18:25:52 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.
 
 	* sysdeps/generic/machine-gmon.h (MCOUNT): Fix argument order.
 
+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.
+
 Mon Aug 26 02:01:37 1996  Ulrich Drepper  <drepper@cygnus.com>
 
 	* elf/dl-open.c (_dl_open): Call library initializer with
diff --git a/Makerules b/Makerules
index f82408146a..2cc5b9c550 100644
--- a/Makerules
+++ b/Makerules
@@ -333,6 +333,15 @@ $(common-objpfx)libc.so$(libc.so-version): $(common-objpfx)libc.so
 endif
 endif
 
+# Some files must not be compiled with the exception handler mechanism
+# enabled (introduced in gcc-2.8).  Use $(no-exceptions) in the
+# appropriate CFLAGS definition.
+ifeq ($(have-no-exceptions),yes)
+no-exceptions = -fno-exceptions
+else
+no-exceptions =
+endif
+
 # Figure out the source filenames in this directory.
 
 override sources	:= $(addsuffix .c,$(filter-out $(elided-routines),\
@@ -475,8 +484,7 @@ define o-iterator-doit
 $(common-objpfx)$(patsubst %,$(libtype$o),c)($(ar-symtab-name)): \
 	  $(common-objpfx)$(patsubst %,$(libtype$o),c)(\
 	    $(patsubst $(objpfx)%,%,$(o-objects))) $(subdirs-stamp-o); \
-	topdir=`cd $(..).; pwd`; \
-	$$$$topdir/autolock.sh \
+	$$(..)./autolock.sh \
 	  $$(common-objpfx)$$(patsubst %,$$(libtype$o),c).lck \
 	  $$(RANLIB) $$(common-objpfx)$$(patsubst %,$$(libtype$o),c)
 endef
diff --git a/config.make.in b/config.make.in
index b099199c36..614d1d2ae5 100644
--- a/config.make.in
+++ b/config.make.in
@@ -19,6 +19,7 @@ elf = @elf@
 have-initfini = @libc_cv_have_initfini@
 
 have-no-whole-archive = @libc_cv_ld_no_whole_archive@
+have-no-exceptions = @libc_cv_gcc_no_exceptions@
 
 # Configuration options.
 gnu-as = @gnu_as@
diff --git a/configure.in b/configure.in
index a2668b9ff9..8939236641 100644
--- a/configure.in
+++ b/configure.in
@@ -497,6 +497,23 @@ fi
 rm -f conftest*])
 AC_SUBST(libc_cv_ld_no_whole_archive)dnl
 
+AC_CACHE_CHECK(for gcc -fno-exceptions, libc_cv_gcc_no_exceptions, [dnl
+cat > conftest.c <<\EOF
+_start () {}
+int __eh_pc;
+__throw () {}
+EOF
+dnl No \ in command here because it ends up inside ''.
+if AC_TRY_COMMAND([${CC-cc} $CFLAGS
+			    -nostdlib -nostartfiles -fno-exceptions
+			    -o conftest conftest.c]); then
+  libc_cv_gcc_no_exceptions=yes
+else
+  libc_cv_gcc_no_exceptions=no
+fi
+rm -f conftest*])
+AC_SUBST(libc_cv_gcc_no_exceptions)dnl
+
 ### End of automated tests.
 ### Now run sysdeps configure fragments.
 
diff --git a/csu/Makefile b/csu/Makefile
index 9254b7f2be..b61b1d74a3 100644
--- a/csu/Makefile
+++ b/csu/Makefile
@@ -80,7 +80,7 @@ define initfini
 -rm -f $(objpfx)crtcommon.tmp
 (echo 'cat > crtcommon.tmp <<\EOF_common'; \
  $(CC) $< $(CPPFLAGS) $(CFLAGS) \
-       -fPIC -finhibit-size-directive -g0 -S -o -; \
+       -fPIC -finhibit-size-directive $(no-exceptions) -g0 -S -o -; \
  echo 'EOF_common') | (cd $(@D); $(SHELL))
 cat $(objpfx)crtcommon.tmp >> $(objpfx)crti.s-new
 cat $(objpfx)crtcommon.tmp >> $(objpfx)crtn.s-new
diff --git a/elf/rtld.c b/elf/rtld.c
index be71e88c3c..8b754920f8 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -486,20 +486,6 @@ of this helper program; chances are you did not intend to run this program.\n",
     _dl_debug_state ();
   }
 
-  if (_dl_rtld_map.l_info[DT_INIT])
-    {
-      /* Call the initializer for the compatibility version of the
-	 dynamic linker.  There is no additional initialization
-	 required for the ABI-compliant dynamic linker.  */
-
-      (*(void (*) (int, char **, char**))
-       (_dl_rtld_map.l_addr + _dl_rtld_map.l_info[DT_INIT]->d_un.d_ptr))
-	(0, NULL, NULL);
-
-      /* Clear the field so a future dlopen won't run it again.  */
-      _dl_rtld_map.l_info[DT_INIT] = NULL;
-    }
-
   /* We finished the intialization and will start up.  */
   _dl_starting_up = 1;
 
diff --git a/gmon/gmon.c b/gmon/gmon.c
index 8e47c52681..a356c4cc47 100644
--- a/gmon/gmon.c
+++ b/gmon/gmon.c
@@ -55,7 +55,7 @@ struct gmonparam _gmonparam = { GMON_PROF_OFF };
 static int	s_scale;
 #define		SCALE_1_TO_1	0x10000L
 
-#define ERR(s) write(2, s, sizeof(s))
+#define ERR(s) write(2, s, sizeof(s) - 1)
 
 /*
  * Discover the tick frequency of the machine if something goes wrong,
@@ -65,7 +65,7 @@ static int
 DEFUN_VOID(hertz)
 {
   struct itimerval tim;
-    
+
   tim.it_interval.tv_sec = 0;
   tim.it_interval.tv_usec = 1;
   tim.it_value.tv_sec = 0;
diff --git a/io/fcntl.h b/io/fcntl.h
index 792bd938ec..7d24c22c42 100644
--- a/io/fcntl.h
+++ b/io/fcntl.h
@@ -43,6 +43,15 @@ __BEGIN_DECLS
 #endif
 #endif /* Use misc.  */
 
+/* Define some more compatibility macros to be backward compatible with
+   BSD systems which did not managed to hide these kernel macros.  */
+#ifdef	__USE_BSD
+#define	FAPPEND		O_APPEND
+#define	FASYNC		O_ASYNC
+#define	FFSYNC		O_FSYNC
+#define	FNONBLOCK	O_NONBLOCK
+#define	FNDELAY		O_NDELAY
+#endif /* Use BSD.  */
 
 /* Do the file control operation described by CMD on FD.
    The remaining arguments are interpreted depending on CMD.  */
diff --git a/misc/Makefile b/misc/Makefile
index 1631b2121d..5bdb8252ed 100644
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -71,3 +71,6 @@ $(objpfx)libbsd-compat.a: $(objpfx)bsd-compat.o
 	ln $< $@
 
 $(objpfx)libg.a: $(dep-dummy-lib); $(make-dummy-lib)
+
+
+CFLAGS-init-misc.c = -fkeep-inline-functions
diff --git a/misc/init-misc.c b/misc/init-misc.c
index bf89e9ec0f..05e697d43b 100644
--- a/misc/init-misc.c
+++ b/misc/init-misc.c
@@ -25,7 +25,12 @@ char *__progname = (char *) "";
 weak_alias (__progname_full, program_invocation_name)
 weak_alias (__progname, program_invocation_short_name)
 
-void
+
+static void __init_misc (int argc, char **argv, char **envp)
+  __attribute__ ((unused));
+
+
+static void
 __init_misc (int argc, char **argv, char **envp)
 {
   if (argv && argv[0])
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;