Update.

1998-05-04 12:40  Ulrich Drepper  <drepper@cygnus.com>

	* malloc/malloc.c (ptmalloc_init_all): New function.  Similar to
	ptmalloc_unlock_all, but re-initializes the mutexes instead.
	(ptmalloc_init): Use new function in thread_at_fork call.
	(thread_atfork_static): Likewise.
	Suggested by Wolfram Gloger and Xavier Leroy.

ChangeLog

@@ -1,3 +1,11 @@
+1998-05-04 12:40  Ulrich Drepper  <drepper@cygnus.com>
+
+	* malloc/malloc.c (ptmalloc_init_all): New function.  Similar to
+	ptmalloc_unlock_all, but re-initializes the mutexes instead.
+	(ptmalloc_init): Use new function in thread_at_fork call.
+	(thread_atfork_static): Likewise.
+	Suggested by Wolfram Gloger and Xavier Leroy.
+
 1998-05-04  Ulrich Drepper  <drepper@cygnus.com>
 
 	* signal/signal.h: Move definitions of struct sigstack and

Makerules

@@ -451,14 +451,11 @@ extra-libs-left := $(extra-libs)
 include $(patsubst %,$(..)extra-lib.mk,$(extra-libs))
 endif
 
++depfiles := $(sources:.c=.d) \
+	     $(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.os=.o))) \
+	     $(addsuffix .d,$(tests) $(test-srcs) $(tests-static))
 ifeq ($(build-programs),yes)
-+depfiles := $(strip $(sources:.c=.d) \
-		     $(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.os=.o))) \
-		     $(addsuffix .d,$(others) $(tests) $(test-srcs)))
-else
-+depfiles := $(strip $(sources:.c=.d) \
-		     $(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.os=.o))) \
-		     $(addsuffix .d,$(tests) $(test-srcs)))
++depfiles += $(addsuffix .d,$(others))
 endif
 +depfiles := $(addprefix $(objpfx),\
 			 $(filter-out $(addsuffix .d,$(omit-deps)),\

bits/sigstack.h

@@ -0,0 +1,39 @@
+/* sigstack, sigaltstack definitions.
+   Copyright (C) 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _SIGNAL_H
+# error "Never include this file directly.  Use <signal.h> instead"
+#endif
+
+
+/* Structure describing a signal stack (obsolete).  */
+struct sigstack
+  {
+    __ptr_t ss_sp;		/* Signal stack pointer.  */
+    int ss_onstack;		/* Nonzero if executing on this stack.  */
+  };
+
+
+/* Alternate, preferred interface.  */
+typedef struct sigaltstack
+  {
+    __ptr_t ss_sp;
+    size_t ss_size;
+    int ss_flags;
+  } stack_t;

elf/rtld.c

@@ -485,14 +485,12 @@ of this helper program; chances are you did not intend to run this program.\n\
 	 is specified (i.e., this is no dynamically linked binary.  */
       if (main_map->l_ld == NULL)
 	_exit (1);
-      if (!has_interp)
-	_exit (2);
 
       /* We allow here some platform specific code.  */
 #ifdef DISTINGUISH_LIB_VERSIONS
       DISTINGUISH_LIB_VERSIONS;
 #endif
-      _exit (0);
+      _exit (has_interp ? 0 : 2);
     }
 
   if (! paths_initialized)
@@ -645,7 +643,7 @@ of this helper program; chances are you did not intend to run this program.\n\
   if (_dl_rtld_map.l_next)
     _dl_rtld_map.l_next->l_prev = _dl_rtld_map.l_prev;
 
-  if (_dl_rtld_map.l_opencount)
+  if (_dl_rtld_map.l_opencount > 1)
     {
       /* Some DT_NEEDED entry referred to the interpreter object itself, so
 	 put it back in the list of visible objects.  We insert it into the

malloc/malloc.c

@@ -1,5 +1,5 @@
 /* Malloc implementation for multiple threads without lock contention.
-   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>
    and Doug Lea <dl@cs.oswego.edu>, 1996.
@@ -1579,6 +1579,24 @@ ptmalloc_unlock_all __MALLOC_P((void))
   (void)mutex_unlock(&list_lock);
 }
 
+static void
+ptmalloc_init_all __MALLOC_P((void))
+{
+  arena *ar_ptr;
+
+#if defined _LIBC || defined MALLOC_HOOKS
+  tsd_setspecific(arena_key, save_arena);
+  __malloc_hook = save_malloc_hook;
+  __free_hook = save_free_hook;
+#endif
+  for(ar_ptr = &main_arena;;) {
+    (void)mutex_init(&ar_ptr->mutex);
+    ar_ptr = ar_ptr->next;
+    if(ar_ptr == &main_arena) break;
+  }
+  (void)mutex_init(&list_lock);
+}
+
 /* Initialization routine. */
 #if defined(_LIBC)
 #if 0
@@ -1617,7 +1635,7 @@ ptmalloc_init __MALLOC_P((void))
   mutex_init(&list_lock);
   tsd_key_create(&arena_key, NULL);
   tsd_setspecific(arena_key, (Void_t *)&main_arena);
-  thread_atfork(ptmalloc_lock_all, ptmalloc_unlock_all, ptmalloc_unlock_all);
+  thread_atfork(ptmalloc_lock_all, ptmalloc_unlock_all, ptmalloc_init_all);
 #endif
 #if defined _LIBC || defined MALLOC_HOOKS
   if((s = getenv("MALLOC_TRIM_THRESHOLD_")))
@@ -1644,7 +1662,7 @@ ptmalloc_init __MALLOC_P((void))
 /* There are platforms (e.g. Hurd) with a link-time hook mechanism. */
 #ifdef thread_atfork_static
 thread_atfork_static(ptmalloc_lock_all, ptmalloc_unlock_all, \
-                     ptmalloc_unlock_all)
+                     ptmalloc_init_all)
 #endif
 
 #if defined _LIBC || defined MALLOC_HOOKS

manual/terminal.texi

@@ -1135,8 +1135,8 @@ The particular characters used are specified in the @code{c_cc} member
 of the @code{struct termios} structure.  This member is an array; each
 element specifies the character for a particular role.  Each element has
 a symbolic constant that stands for the index of that element---for
-example, @code{INTR} is the index of the element that specifies the INTR
-character, so storing @code{'='} in @code{@var{termios}.c_cc[INTR]}
+example, @code{VINTR} is the index of the element that specifies the INTR
+character, so storing @code{'='} in @code{@var{termios}.c_cc[VINTR]}
 specifies @samp{=} as the INTR character.
 
 @vindex _POSIX_VDISABLE

signal/Makefile

@@ -22,7 +22,7 @@
 subdir	:= signal
 
 headers	:= signal.h sys/signal.h bits/signum.h bits/sigcontext.h \
-	   bits/sigaction.h bits/sigset.h bits/siginfo.h
+	   bits/sigaction.h bits/sigset.h bits/siginfo.h bits/sigstack.h
 
 routines	:= signal raise killpg \
 		   sigaction sigprocmask kill \

signal/signal.h

@@ -318,27 +318,16 @@ extern int sigreturn __P ((struct sigcontext *__scp));
    calls be restarted after signal SIG.  */
 extern int siginterrupt __P ((int __sig, int __interrupt));
 
-
-/* Structure describing a signal stack.  */
-struct sigstack
-  {
-    __ptr_t ss_sp;		/* Signal stack pointer.  */
-    int ss_onstack;		/* Nonzero if executing on this stack.  */
-  };
+# include <bits/sigstack.h>
 
 /* Run signals handlers on the stack specified by SS (if not NULL).
-   If OSS is not NULL, it is filled in with the old signal stack status.  */
+   If OSS is not NULL, it is filled in with the old signal stack status.
+   This interface is obsolete and on many platform not implemented.  */
 extern int sigstack __P ((__const struct sigstack *__ss,
 			  struct sigstack *__oss));
 
-/* Alternate interface.  */
-typedef struct sigaltstack
-  {
-    __ptr_t ss_sp;
-    int ss_flags;
-    size_t ss_size;
-  } stack_t;
-
+/* Alternate signal handler stack interface.
+   This interface should always be preferred over `sigstack'.  */
 extern int sigaltstack __P ((__const struct sigaltstack *__ss,
 			     struct sigaltstack *__oss));
 

sysdeps/generic/bits/sigstack.h

@@ -0,0 +1,39 @@
+/* sigstack, sigaltstack definitions.
+   Copyright (C) 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _SIGNAL_H
+# error "Never include this file directly.  Use <signal.h> instead"
+#endif
+
+
+/* Structure describing a signal stack (obsolete).  */
+struct sigstack
+  {
+    __ptr_t ss_sp;		/* Signal stack pointer.  */
+    int ss_onstack;		/* Nonzero if executing on this stack.  */
+  };
+
+
+/* Alternate, preferred interface.  */
+typedef struct sigaltstack
+  {
+    __ptr_t ss_sp;
+    size_t ss_size;
+    int ss_flags;
+  } stack_t;

sysdeps/unix/sysv/linux/bits/sigstack.h

@@ -0,0 +1,39 @@
+/* sigstack, sigaltstack definitions.
+   Copyright (C) 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _SIGNAL_H
+# error "Never include this file directly.  Use <signal.h> instead"
+#endif
+
+
+/* Structure describing a signal stack (obsolete).  */
+struct sigstack
+  {
+    __ptr_t ss_sp;		/* Signal stack pointer.  */
+    int ss_onstack;		/* Nonzero if executing on this stack.  */
+  };
+
+
+/* Alternate, preferred interface.  */
+typedef struct sigaltstack
+  {
+    __ptr_t ss_sp;
+    int ss_flags;
+    size_t ss_size;
+  } stack_t;

sysdeps/unix/sysv/linux/tcgetattr.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 1992, 1995, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1992, 1995, 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -16,7 +16,9 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#include <string.h>
 #include <termios.h>
+#include <unistd.h>
 #include <sys/ioctl.h>
 #include <sys/types.h>
 
@@ -33,7 +35,6 @@ __tcgetattr (fd, termios_p)
 {
   struct __kernel_termios k_termios;
   int retval;
-  size_t cnt;
 
   retval = __ioctl (fd, TCGETS, &k_termios);
 
@@ -48,8 +49,21 @@ __tcgetattr (fd, termios_p)
 #ifdef _HAVE_C_OSPEED
   termios_p->c_ospeed = k_termios.c_ospeed;
 #endif
-  for (cnt = 0; cnt < __KERNEL_NCCS; ++cnt)
-    termios_p->c_cc[cnt] = k_termios.c_cc[cnt];
+  if (sizeof (cc_t) == 1 || _POSIX_VDISABLE == 0
+      || (unsigned char) _POSIX_VDISABLE == (unsigned char) -1)
+    memset (__mempcpy (&termios_p->c_cc[0], &k_termios.c_cc[0],
+		       __KERNEL_NCCS * sizeof (cc_t)),
+	    _POSIX_VDISABLE, (NCCS - __KERNEL_NCCS) * sizeof (cc_t));
+  else
+    {
+      size_t cnt;
+
+      memcpy (&termios_p->c_cc[0], &k_termios.c_cc[0],
+	      __KERNEL_NCCS * sizeof (cc_t));
+
+      for (cnt = __KERNEL_NCCS; cnt < NCCS; ++cnt)
+	termios_p->c_cc[cnt] = _POSIX_VDISABLE;
+    }
 
   return retval;
 }

sysdeps/unix/sysv/linux/tcsetattr.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 1993, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1993, 1996, 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -17,6 +17,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #include <errno.h>
+#include <string.h>
 #include <termios.h>
 #include <sys/ioctl.h>
 #include <sys/types.h>
@@ -36,7 +37,6 @@ tcsetattr (fd, optional_actions, termios_p)
 {
   struct __kernel_termios k_termios;
   unsigned long int cmd;
-  size_t cnt;
 
   switch (optional_actions)
     {
@@ -65,8 +65,8 @@ tcsetattr (fd, optional_actions, termios_p)
 #ifdef _HAVE_C_OSPEED
   k_termios.c_ospeed = termios_p->c_ospeed;
 #endif
-  for (cnt = 0; cnt < __KERNEL_NCCS; ++cnt)
-    k_termios.c_cc[cnt] = termios_p->c_cc[cnt];
+  memcpy (&k_termios.c_cc[0], &termios_p->c_cc[0],
+	  __KERNEL_NCCS * sizeof (cc_t));
 
   return __ioctl (fd, cmd, &k_termios);
 }