Update.

2001-03-20  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/sparc/stackinfo.h: New file.

ChangeLog

@@ -1,3 +1,7 @@
+2001-03-20  Jakub Jelinek  <jakub@redhat.com>
+
+	* sysdeps/sparc/stackinfo.h: New file.
+
 2001-03-21  Andreas Jaeger  <aj@suse.de>
 
 	* elf/global.c (main): Use proper prototype.

linuxthreads/Examples/ex17.c

@@ -0,0 +1,95 @@
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <limits.h>
+#include <sys/mman.h>
+
+static void *
+test_thread (void *v_param)
+{
+  return NULL;
+}
+
+#define STACKSIZE 0x100000
+
+int
+main (void)
+{
+  pthread_t thread;
+  pthread_attr_t attr;
+  int status;
+  void *stack, *stack2;
+  size_t stacksize;
+
+  pthread_attr_init (&attr);
+  stack = mmap (NULL, STACKSIZE,
+		PROT_READ | PROT_WRITE | PROT_EXEC,
+		MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+  if (stack == (void *)-1)
+    {
+      perror ("mmap failed");
+      return 1;
+    }
+
+  status = pthread_attr_setstack (&attr, stack, STACKSIZE);
+  if (status != 0)
+    {
+      printf ("pthread_attr_setstack failed: %s\n", strerror (status));
+      return 1;
+    }
+
+  status = pthread_attr_getstack (&attr, &stack2, &stacksize);
+  if (status != 0)
+    {
+      printf ("pthread_attr_getstack failed: %s\n", strerror (status));
+      return 1;
+    }
+
+  if (stack2 != stack || stacksize != STACKSIZE)
+    {
+      printf ("first pthread_attr_getstack returned different stack (%p,%x)\n"
+	      "than was set by setstack (%p,%x)\n",
+	      stack2, stacksize, stack, STACKSIZE);
+      return 2;
+    }
+
+  status = pthread_create (&thread, &attr, test_thread, NULL);
+  if (status != 0)
+    {
+      printf ("pthread_create failed: %s\n", strerror (status));
+      return 1;
+    }
+
+  status = pthread_getattr_np (thread, &attr);
+  if (status != 0)
+    {
+      printf ("pthread_getattr_np failed: %s\n", strerror (status));
+      return 1;
+    }
+
+  status = pthread_attr_getstack (&attr, &stack2, &stacksize);
+  if (status != 0)
+    {
+      printf ("pthread_attr_getstack failed: %s\n", strerror (status));
+      return 1;
+    }
+
+  if (stack2 != stack || stacksize != STACKSIZE)
+    {
+      printf ("second pthread_attr_getstack returned different stack (%p,%x)\n"
+	      "than was set by setstack (%p,%x)\n",
+	      stack2, stacksize, stack, STACKSIZE);
+      return 3;
+    }
+
+  /* pthread_detach (thread); */
+  if (pthread_join (thread, NULL) != 0)
+    {
+      printf ("join failed\n");
+      return 1;
+    }
+  return 0;
+}

linuxthreads/Makefile

@@ -55,7 +55,8 @@ endif
 
 librt-tests = ex10 ex11
 tests = ex1 ex2 ex3 ex4 ex5 ex6 ex7 ex8 ex9 $(librt-tests) ex12 ex13 joinrace \
-	tststack $(tests-nodelete-$(have-z-nodelete)) ecmutex ex14 ex15 ex16
+	tststack $(tests-nodelete-$(have-z-nodelete)) ecmutex ex14 ex15 ex16 \
+	ex17
 
 ifeq (yes,$(build-shared))
 tests-nodelete-yes = unload

sysdeps/sparc/stackinfo.h

@@ -0,0 +1,28 @@
+/* Copyright (C) 2001 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.  */
+
+/* This file contains a bit of information about the stack allocation
+   of the processor.  */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H	1
+
+/* On sparc the stack grows down.  */
+#define _STACK_GROWS_DOWN	1
+
+#endif	/* stackinfo.h */