Update.

2003-09-17  Philip Blundell  <philb@gnu.org>

	* sysdeps/unix/sysv/linux/arm/vfork.S: Branch to fork if
	libpthread is loaded.  Elide backwards compatibility code when not
	required.

elf/Makefile

@@ -71,7 +71,7 @@ distribute	:= rtld-Rules \
 		   tst-tlsmod1.c tst-tlsmod2.c tst-tlsmod3.c tst-tlsmod4.c \
 		   tst-tlsmod5.c tst-tlsmod6.c tst-tlsmod7.c tst-tlsmod8.c \
 		   tst-tlsmod9.c tst-tlsmod10.c tst-tlsmod11.c \
-		   tst-tlsmod12.c tst-tls10.h \
+		   tst-tlsmod12.c tst-tls10.h tst-alignmod.c \
 		   circlemod1.c circlemod1a.c circlemod2.c circlemod2a.c \
 		   circlemod3.c circlemod3a.c nodlopenmod2.c \
 		   tls-macros.h \
@@ -150,7 +150,7 @@ tests += loadtest restest1 preloadtest loadfail multiload origtest resolvfail \
 	 neededtest3 neededtest4 unload2 lateglobal initfirst global \
 	 restest2 next dblload dblunload reldep5 reldep6 reldep7 reldep8 \
 	 circleload1 tst-tls3 tst-tls4 tst-tls5 tst-tls6 tst-tls7 tst-tls8 \
-	 tst-tls10 tst-tls11 tst-tls12 tst-tls13 tst-tls14
+	 tst-tls10 tst-tls11 tst-tls12 tst-tls13 tst-tls14 tst-align
 #	 reldep9
 test-srcs = tst-pathopt
 tests-vis-yes = vismain
@@ -177,7 +177,8 @@ modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \
 		circlemod1 circlemod1a circlemod2 circlemod2a \
 		circlemod3 circlemod3a \
 		reldep8mod1 reldep8mod2 reldep8mod3 \
-		reldep9mod1 reldep9mod2 reldep9mod3
+		reldep9mod1 reldep9mod2 reldep9mod3 \
+		tst-alignmod
 ifeq (yes,$(have-initfini-array))
 modules-names += tst-array2dep
 endif
@@ -648,6 +649,11 @@ $(objpfx)tst-tls13.out: $(objpfx)tst-tlsmod13a.so
 $(objpfx)tst-tls14:  $(objpfx)tst-tlsmod14a.so $(libdl)
 $(objpfx)tst-tls14.out:$(objpfx)tst-tlsmod14b.so
 
+CFLAGS-tst-align.c = $(stack-align-test-flags)
+CFLAGS-tst-alignmod.c = $(stack-align-test-flags)
+$(objpfx)tst-align: $(libdl)
+$(objpfx)tst-align.out: $(objpfx)tst-alignmod.so
+
 ifdef libdl
 $(objpfx)tst-tls9-static: $(common-objpfx)dlfcn/libdl.a
 $(objpfx)tst-tls9-static.out: $(objpfx)tst-tlsmod5.so $(objpfx)tst-tlsmod6.so

elf/tst-align.c

@@ -0,0 +1,54 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static int
+do_test (void)
+{
+  static const char modname[] = "tst-alignmod.so";
+  int result = 0;
+  void (*fp) (int *);
+  void *h;
+
+  h = dlopen (modname, RTLD_LAZY);
+  if (h == NULL)
+    {
+      printf ("cannot open '%s': %s\n", modname, dlerror ());
+      exit (1);
+    }
+
+  fp = dlsym (h, "in_dso");
+  if (fp == NULL)
+    {
+      printf ("cannot get symbol 'in_dso': %s\n", dlerror ());
+      exit (1);
+    }
+
+  fp (&result);
+
+  dlclose (h);
+
+  return result;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"

elf/tst-alignmod.c

@@ -0,0 +1,53 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stdio.h>
+#include <tst-stack-align.h>
+
+static int res, *resp;
+
+static void __attribute__((constructor))
+con (void)
+{
+  res = TEST_STACK_ALIGN () ? -1 : 1;
+}
+
+void
+in_dso (int *result)
+{
+  if (!res)
+    {
+      puts ("constructor has not been run");
+      *result = 1;
+    }
+  else if (res != 1)
+    {
+      puts ("constructor has been run without sufficient alignment");
+      *result = 1;
+    }
+
+  resp = result;
+}
+
+static void __attribute__((destructor))
+des (void)
+{
+  if (TEST_STACK_ALIGN ())
+    *resp = 1;
+}

libio/memstream.c

@@ -32,8 +32,6 @@ struct _IO_FILE_memstream
 
 static int _IO_mem_sync __P ((_IO_FILE* fp));
 static void _IO_mem_finish __P ((_IO_FILE* fp, int));
-static int _IO_wmem_sync __P ((_IO_FILE* fp));
-static void _IO_wmem_finish __P ((_IO_FILE* fp, int));
 
 
 static struct _IO_jump_t _IO_mem_jumps =
@@ -60,30 +58,6 @@ static struct _IO_jump_t _IO_mem_jumps =
   JUMP_INIT(imbue, _IO_default_imbue)
 };
 
-static struct _IO_jump_t _IO_wmem_jumps =
-{
-  JUMP_INIT_DUMMY,
-  JUMP_INIT (finish, (_IO_finish_t) _IO_wmem_finish),
-  JUMP_INIT (overflow, (_IO_overflow_t) _IO_wstr_overflow),
-  JUMP_INIT (underflow, (_IO_underflow_t) _IO_wstr_underflow),
-  JUMP_INIT (uflow, (_IO_underflow_t) INTUSE(_IO_wdefault_uflow)),
-  JUMP_INIT (pbackfail, (_IO_pbackfail_t) _IO_wstr_pbackfail),
-  JUMP_INIT (xsputn, (_IO_xsputn_t) INTUSE(_IO_wdefault_xsputn)),
-  JUMP_INIT (xsgetn, (_IO_xsgetn_t) INTUSE(_IO_wdefault_xsgetn)),
-  JUMP_INIT (seekoff, _IO_wstr_seekoff),
-  JUMP_INIT (seekpos, _IO_default_seekpos),
-  JUMP_INIT (setbuf, _IO_default_setbuf),
-  JUMP_INIT (sync, (_IO_sync_t) _IO_wmem_sync),
-  JUMP_INIT (doallocate, INTUSE(_IO_wdefault_doallocate)),
-  JUMP_INIT (read, _IO_default_read),
-  JUMP_INIT (write, _IO_default_write),
-  JUMP_INIT (seek, _IO_default_seek),
-  JUMP_INIT (close, _IO_default_close),
-  JUMP_INIT (stat, _IO_default_stat),
-  JUMP_INIT(showmanyc, _IO_default_showmanyc),
-  JUMP_INIT(imbue, _IO_default_imbue)
-};
-
 /* Open a stream that writes into a malloc'd buffer that is expanded as
    necessary.  *BUFLOC and *SIZELOC are updated with the buffer's location
    and the number of characters written on fflush or fclose.  */
@@ -172,55 +146,3 @@ _IO_mem_finish (fp, dummy)
 
   INTUSE(_IO_default_finish) (fp, 0);
 }
-
-
-static int
-_IO_wmem_sync (fp)
-     _IO_FILE* fp;
-{
-  struct _IO_FILE_memstream *mp = (struct _IO_FILE_memstream *) fp;
-  int res;
-
-  res = _IO_default_sync (fp);
-  if (res < 0)
-    return res;
-
-  if (fp->_wide_data->_IO_write_ptr == fp->_wide_data->_IO_write_end)
-    {
-      _IO_wstr_overflow (fp, L'\0');
-      --fp->_wide_data->_IO_write_ptr;
-    }
-  else
-    *fp->_wide_data->_IO_write_ptr = '\0';
-
-  *mp->bufloc = (char *) fp->_wide_data->_IO_write_base;
-  *mp->sizeloc = (fp->_wide_data->_IO_write_ptr
-		  - fp->_wide_data->_IO_write_base);
-
-  return 0;
-}
-
-
-static void
-_IO_wmem_finish (fp, dummy)
-     _IO_FILE* fp;
-     int dummy;
-{
-  struct _IO_FILE_memstream *mp = (struct _IO_FILE_memstream *) fp;
-
-  *mp->bufloc = (char *) realloc (fp->_wide_data->_IO_write_base,
-				  (fp->_wide_data->_IO_write_ptr
-				   - fp->_wide_data->_IO_write_base + 1)
-				  * sizeof (wchar_t));
-  if (*mp->bufloc != NULL)
-    {
-      ((wchar_t *) (*mp->bufloc))[fp->_wide_data->_IO_write_ptr
-				 - fp->_wide_data->_IO_write_base] = '\0';
-      *mp->sizeloc = (fp->_wide_data->_IO_write_ptr
-		      - fp->_wide_data->_IO_write_base);
-    }
-
-  fp->_wide_data->_IO_buf_base = NULL;
-
-  INTUSE(_IO_default_finish) (fp, 0);
-}

linuxthreads/ChangeLog

@@ -1,3 +1,9 @@
+2003-09-17  Philip Blundell  <philb@gnu.org>
+
+	* sysdeps/unix/sysv/linux/arm/vfork.S: Branch to fork if
+	libpthread is loaded.  Elide backwards compatibility code when not
+	required.
+
 2003-09-17  Jakub Jelinek  <jakub@redhat.com>
 
 	* descr.h (manager_thread): Rename to...

linuxthreads/attr.c

@@ -404,7 +404,11 @@ int pthread_getattr_np (pthread_t thread, pthread_attr_t *attr)
 # endif
 #endif
 
+#ifdef USE_TLS
   if (attr->__stackaddr == NULL)
+#else
+  if (descr == &__pthread_initial_thread)
+#endif
     {
       /* Defined in ld.so.  */
       extern void *__libc_stack_end;
@@ -448,6 +452,11 @@ int pthread_getattr_np (pthread_t thread, pthread_attr_t *attr)
 		  attr->__stacksize = rl.rlim_cur;
 		  attr->__stackaddr = (void *) to;
 
+		  /* The limit might be too high.  This is a bogus
+		     situation but try to avoid making it worse.  */
+		  if ((size_t) attr->__stacksize > (size_t) attr->__stackaddr)
+		    attr->__stacksize = (size_t) attr->__stackaddr;
+
 		  /* We succeed and no need to look further.  */
 		  ret = 0;
 		  break;

linuxthreads/sysdeps/unix/sysv/linux/arm/vfork.S

@@ -20,37 +20,60 @@
 #include <sysdep-cancel.h>
 #define _ERRNO_H	1
 #include <bits/errno.h>
+#include <kernel-features.h>
 
-/* Clone the calling process, but without copying the whole address
-pace.
+/* Clone the calling process, but without copying the whole address space.
    The calling process is suspended until the new process exits or is
-   replaced by a call to `execve'.  Return -1 for errors, 0 to the new
-rocess,
+   replaced by a call to `execve'.  Return -1 for errors, 0 to the new process,
    and the process ID of the new process to the old process.  */
 
 	PSEUDO_PROLOGUE
 
 ENTRY (__vfork)
 
-	SINGLE_THREAD_P
-	bne	HIDDEN_JUMPTARGET (__fork)
 #ifdef __NR_vfork
+
+#ifdef SHARED
+	ldr	ip, 1f
+	ldr	r0, 2f
+3:	add	ip, pc, ip
+	ldr	r0, [ip, r0]
+#else
+	ldr	r0, 1f
+#endif
+	movs	r0, r0
+	bne	HIDDEN_JUMPTARGET (__fork)
+
 	swi	__NR_vfork
 	cmn	a1, #4096
 	RETINSTR(movcc, pc, lr)
 
+#ifndef __ASSUME_VFORK_SYSCALL
 	/* Check if vfork syscall is known at all.  */
-	ldr	a2, =-ENOSYS
-	teq	a1, a2
+	cmn	a1, #ENOSYS
 	bne	PLTJMP(C_SYMBOL_NAME(__syscall_error))
 #endif
 
+#endif
+
+#ifndef __ASSUME_VFORK_SYSCALL
 	/* If we don't have vfork, fork is close enough.  */
 	swi	__NR_fork
 	cmn	a1, #4096
 	RETINSTR(movcc, pc, lr)
+#elif !defined __NR_vfork
+# error "__NR_vfork not available and __ASSUME_VFORK_SYSCALL defined"
+#endif
     	b	PLTJMP(C_SYMBOL_NAME(__syscall_error))
 
+#ifdef SHARED
+1:	.word	_GLOBAL_OFFSET_TABLE_ - 3b - 8
+2:	.word	__libc_pthread_functions(GOTOFF)
+#else
+	.weak	pthread_create
+1:	.word	pthread_create
+#endif
+
 PSEUDO_END (__vfork)
 libc_hidden_def (__vfork)
 

misc/Makefile

@@ -89,6 +89,7 @@ CFLAGS-mkstemp64.c = -fexceptions
 CFLAGS-getsysstats.c = -fexceptions
 CFLAGS-getusershell.c = -fexceptions
 CFLAGS-err.c = -fexceptions
+CFLAGS-tst-tsearch.c = $(stack-align-test-flags)
 
 include ../Rules