* posix/Makefile (routines): Add sched_cpualloc and sched_cpufree.

	(tests): Add tst-cpuset.
	* posix/sched_cpualloc.c: New file.
	* posix/sched_cpufree.c: New file.
	* posix/tst-cpuset.c: New file.
	* posix/Versions: Export __sched_cpualloc and __sched_cpufree for
	GLIBC_2.7.
	* sysdeps/unix/sysv/linux/bits/sched.h: Define __CPU_*_S macros.
	* posix/sched.h: Define old CPU_* macros in temers of __CPU_*_S
	macros.  Define CPU_*_S macros.

ChangeLog

@@ -1,3 +1,16 @@
+2007-07-29  Ulrich Drepper  <drepper@redhat.com>
+
+	* posix/Makefile (routines): Add sched_cpualloc and sched_cpufree.
+	(tests): Add tst-cpuset.
+	* posix/sched_cpualloc.c: New file.
+	* posix/sched_cpufree.c: New file.
+	* posix/tst-cpuset.c: New file.
+	* posix/Versions: Export __sched_cpualloc and __sched_cpufree for
+	GLIBC_2.7.
+	* sysdeps/unix/sysv/linux/bits/sched.h: Define __CPU_*_S macros.
+	* posix/sched.h: Define old CPU_* macros in temers of __CPU_*_S
+	macros.  Define CPU_*_S macros.
+
 2007-07-28  Ulrich Drepper  <drepper@redhat.com>
 
 	* posix/getconf.c (vars): Add missing _SC_LEVEL4_CACHE_LINESIZE

posix/Makefile

@@ -66,7 +66,7 @@ routines :=								      \
 	spawnattr_getsigmask spawnattr_getschedpolicy spawnattr_getschedparam \
 	spawnattr_setsigmask spawnattr_setschedpolicy spawnattr_setschedparam \
 	posix_madvise							      \
-	get_child_max sched_cpucount
+	get_child_max sched_cpucount sched_cpualloc sched_cpufree
 
 include ../Makeconfig
 
@@ -90,7 +90,7 @@ tests		:= tstgetopt testfnm runtests runptests	     \
 		   tst-execv1 tst-execv2 tst-execl1 tst-execl2 \
 		   tst-execve1 tst-execve2 tst-execle1 tst-execle2 \
 		   tst-execvp3 tst-execvp4 tst-rfc3484 tst-rfc3484-2 \
-		   tst-getaddrinfo3 tst-fnmatch2 tst-cpucount
+		   tst-getaddrinfo3 tst-fnmatch2 tst-cpucount tst-cpuset
 xtests		:= bug-ga2
 ifeq (yes,$(build-shared))
 test-srcs	:= globtest

posix/Versions

@@ -125,6 +125,9 @@ libc {
   GLIBC_2.6 {
     __sched_cpucount;
   }
+  GLIBC_2.7 {
+    __sched_cpualloc; __sched_cpufree;
+  }
   GLIBC_PRIVATE {
     __libc_fork; __libc_pwrite;
   }

posix/sched_cpualloc.c

@@ -0,0 +1,27 @@
+/* Copyright (C) 2007 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 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 <sched.h>
+#include <stdlib.h>
+
+
+cpu_set_t *
+__sched_cpualloc (size_t count)
+{
+  return malloc (CPU_ALLOC_SIZE (count));
+}

posix/sched_cpufree.c

@@ -0,0 +1,27 @@
+/* Copyright (C) 2007 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 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 <sched.h>
+#include <stdlib.h>
+
+
+void
+__sched_cpufree (cpu_set_t *set)
+{
+  free (set);
+}

posix/tst-cpuset.c

@@ -0,0 +1,82 @@
+#include <sched.h>
+#include <stdio.h>
+
+static int
+do_test (void)
+{
+  int result = 0;
+
+  cpu_set_t s1;
+  cpu_set_t s2;
+  cpu_set_t s3;
+
+  CPU_ZERO (&s1);
+  CPU_SET (0, &s1);
+
+  CPU_ZERO (&s2);
+  CPU_SET (0, &s2);
+  CPU_SET (1, &s2);
+
+  CPU_AND (&s3, &s1, &s2);
+  if (! CPU_EQUAL (&s3, &s1))
+    {
+      puts ("result of CPU_AND wrong");
+      result = 1;
+    }
+
+  CPU_OR (&s3, &s1, &s2);
+  if (! CPU_EQUAL (&s3, &s2))
+    {
+      puts ("result of CPU_OR wrong");
+      result = 1;
+    }
+
+  CPU_XOR (&s3, &s1, &s2);
+  if (CPU_COUNT (&s3) != 1)
+    {
+      puts ("result of CPU_XOR wrong");
+      result = 1;
+    }
+
+  cpu_set_t *vs1 = CPU_ALLOC (2048);
+  cpu_set_t *vs2 = CPU_ALLOC (2048);
+  cpu_set_t *vs3 = CPU_ALLOC (2048);
+  size_t vssize = CPU_ALLOC_SIZE (2048);
+
+  CPU_ZERO_S (vssize, vs1);
+  CPU_SET_S (0, vssize, vs1);
+
+  CPU_ZERO_S (vssize, vs2);
+  CPU_SET_S (0, vssize, vs2);
+  CPU_SET_S (2047, vssize, vs2);
+
+  CPU_AND_S (vssize, vs3, vs1, vs2);
+  if (! CPU_EQUAL_S (vssize, vs3, vs1))
+    {
+      puts ("result of CPU_AND_S wrong");
+      result = 1;
+    }
+
+  CPU_OR_S (vssize, vs3, vs1, vs2);
+  if (! CPU_EQUAL_S (vssize, vs3, vs2))
+    {
+      puts ("result of CPU_OR_S wrong");
+      result = 1;
+    }
+
+  CPU_XOR_S (vssize, vs3, vs1, vs2);
+  if (CPU_COUNT_S (vssize, vs3) != 1)
+    {
+      puts ("result of CPU_XOR_S wrong");
+      result = 1;
+    }
+
+  CPU_FREE (vs1);
+  CPU_FREE (vs2);
+  CPU_FREE (vs3);
+
+  return result;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"

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

@@ -118,27 +118,62 @@ typedef struct
 } cpu_set_t;
 
 /* Access functions for CPU masks.  */
-# define __CPU_ZERO(cpusetp) \
+# define __CPU_ZERO_S(setsize, cpusetp) \
   do {									      \
-    unsigned int __i;							      \
+    size_t __i;								      \
+    size_t __imax = (setsize) / sizeof (__cpu_mask);			      \
     cpu_set_t *__arr = (cpusetp);					      \
-    for (__i = 0; __i < sizeof (cpu_set_t) / sizeof (__cpu_mask); ++__i)      \
+    for (__i = 0; __i < __imax; ++__i)					      \
       __arr->__bits[__i] = 0;						      \
   } while (0)
-# define __CPU_SET(cpu, cpusetp) \
-  ((cpusetp)->__bits[__CPUELT (cpu)] |= __CPUMASK (cpu))
-# define __CPU_CLR(cpu, cpusetp) \
-  ((cpusetp)->__bits[__CPUELT (cpu)] &= ~__CPUMASK (cpu))
-# define __CPU_ISSET(cpu, cpusetp) \
-  (((cpusetp)->__bits[__CPUELT (cpu)] & __CPUMASK (cpu)) != 0)
+# define __CPU_SET_S(cpu, setsize, cpusetp) \
+  ({ size_t __cpu = (cpu);						      \
+     __cpu < 8 * (setsize)						      \
+     ? ((cpusetp)->__bits[__CPUELT (__cpu)] |= __CPUMASK (__cpu)) : 0; })
+# define __CPU_CLR_S(cpu, setsize, cpusetp) \
+  ({ size_t __cpu = (cpu);						      \
+     __cpu < 8 * (setsize)						      \
+     ? ((cpusetp)->__bits[__CPUELT (__cpu)] &= ~__CPUMASK (__cpu)) : 0; })
+# define __CPU_ISSET_S(cpu, setsize, cpusetp) \
+  ({ size_t __cpu = (cpu);						      \
+     __cpu < 8 * (setsize)						      \
+     ? (((cpusetp)->__bits[__CPUELT (__cpu)] & __CPUMASK (__cpu))) != 0 : 0; })
+
+# define __CPU_COUNT_S(setsize, cpusetp) \
+  __sched_cpucount (setsize, cpusetp)
+
+# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
+  ({ cpu_set_t *__arr1 = (cpusetp1);					      \
+     cpu_set_t *__arr2 = (cpusetp2);					      \
+     size_t __imax = (setsize) / sizeof (__cpu_mask);			      \
+     size_t __i;							      \
+     for (__i = 0; __i < __imax; ++__i)					      \
+       if (__arr1->__bits[__i] != __arr2->__bits[__i])			      \
+	 break;								      \
+     __i == __imax; })
+
+# define __CPU_OP_S(setsize, destset, srcset1, srcset2, op) \
+  ({ cpu_set_t *__dest = (destset);					      \
+     cpu_set_t *__arr1 = (srcset1);					      \
+     cpu_set_t *__arr2 = (srcset2);					      \
+     size_t __imax = (setsize) / sizeof (__cpu_mask);			      \
+     size_t __i;							      \
+     for (__i = 0; __i < __imax; ++__i)					      \
+       __dest->__bits[__i] = __arr1->__bits[__i] op __arr2->__bits[__i];      \
+     __dest; })
+
+# define __CPU_ALLOC_SIZE(count) \
+  ((((count) + __NCPUBITS - 1) / __NCPUBITS) * 8)
+# define __CPU_ALLOC(count) __sched_cpualloc (count)
+# define __CPU_FREE(cpuset) __sched_cpufree (cpuset)
 
 __BEGIN_DECLS
 
 extern int __sched_cpucount (size_t __setsize, const cpu_set_t *__setp)
   __THROW;
+extern cpu_set_t *__sched_cpualloc (size_t __count) __THROW __wur;
+extern void __sched_cpufree (cpu_set_t *__set) __THROW;
 
 __END_DECLS
 
-# define __CPU_COUNT(cpusetp) \
-  __sched_cpucount (sizeof (cpu_set_t), cpusetp)
 #endif