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-rw-r--r--posix/Makefile4
-rw-r--r--posix/bits/cpu-set.h124
-rw-r--r--posix/sched.h8
3 files changed, 131 insertions, 5 deletions
diff --git a/posix/Makefile b/posix/Makefile
index 52b022cf66..1c328b81af 100644
--- a/posix/Makefile
+++ b/posix/Makefile
@@ -30,8 +30,8 @@ headers	:= sys/utsname.h sys/times.h sys/wait.h sys/types.h unistd.h	      \
 	   bits/posix1_lim.h bits/posix2_lim.h bits/posix_opt.h		      \
 	   bits/local_lim.h tar.h bits/utsname.h bits/confname.h	      \
 	   bits/waitflags.h bits/waitstatus.h sys/unistd.h sched.h	      \
-	   bits/sched.h re_comp.h wait.h bits/environments.h cpio.h	      \
-	   spawn.h bits/unistd.h
+	   bits/sched.h bits/cpu-set.h re_comp.h wait.h bits/environments.h   \
+	   cpio.h spawn.h bits/unistd.h
 
 routines :=								      \
 	uname								      \
diff --git a/posix/bits/cpu-set.h b/posix/bits/cpu-set.h
new file mode 100644
index 0000000000..f9b11b9714
--- /dev/null
+++ b/posix/bits/cpu-set.h
@@ -0,0 +1,124 @@
+/* Definition of the cpu_set_t structure used by the POSIX 1003.1b-1993
+   scheduling interface.
+   Copyright (C) 1996-2017 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _BITS_CPU_SET_H
+#define _BITS_CPU_SET_H 1
+
+#ifndef _SCHED_H
+# error "Never include <bits/cpu-set.h> directly; use <sched.h> instead."
+#endif
+
+/* Size definition for CPU sets.  */
+# define __CPU_SETSIZE	1024
+# define __NCPUBITS	(8 * sizeof (__cpu_mask))
+
+/* Type for array elements in 'cpu_set_t'.  */
+typedef __CPU_MASK_TYPE __cpu_mask;
+
+/* Basic access functions.  */
+# define __CPUELT(cpu)	((cpu) / __NCPUBITS)
+# define __CPUMASK(cpu)	((__cpu_mask) 1 << ((cpu) % __NCPUBITS))
+
+/* Data structure to describe CPU mask.  */
+typedef struct
+{
+  __cpu_mask __bits[__CPU_SETSIZE / __NCPUBITS];
+} cpu_set_t;
+
+/* Access functions for CPU masks.  */
+# if __GNUC_PREREQ (2, 91)
+#  define __CPU_ZERO_S(setsize, cpusetp) \
+  do __builtin_memset (cpusetp, '\0', setsize); while (0)
+# else
+#  define __CPU_ZERO_S(setsize, cpusetp) \
+  do {									      \
+    size_t __i;								      \
+    size_t __imax = (setsize) / sizeof (__cpu_mask);			      \
+    __cpu_mask *__bits = (cpusetp)->__bits;				      \
+    for (__i = 0; __i < __imax; ++__i)					      \
+      __bits[__i] = 0;							      \
+  } while (0)
+# endif
+# define __CPU_SET_S(cpu, setsize, cpusetp) \
+  (__extension__							      \
+   ({ size_t __cpu = (cpu);						      \
+      __cpu / 8 < (setsize)						      \
+      ? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)]		      \
+	 |= __CPUMASK (__cpu))						      \
+      : 0; }))
+# define __CPU_CLR_S(cpu, setsize, cpusetp) \
+  (__extension__							      \
+   ({ size_t __cpu = (cpu);						      \
+      __cpu / 8 < (setsize)						      \
+      ? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)]		      \
+	 &= ~__CPUMASK (__cpu))						      \
+      : 0; }))
+# define __CPU_ISSET_S(cpu, setsize, cpusetp) \
+  (__extension__							      \
+   ({ size_t __cpu = (cpu);						      \
+      __cpu / 8 < (setsize)						      \
+      ? ((((const __cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)]	      \
+	  & __CPUMASK (__cpu))) != 0					      \
+      : 0; }))
+
+# define __CPU_COUNT_S(setsize, cpusetp) \
+  __sched_cpucount (setsize, cpusetp)
+
+# if __GNUC_PREREQ (2, 91)
+#  define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
+  (__builtin_memcmp (cpusetp1, cpusetp2, setsize) == 0)
+# else
+#  define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
+  (__extension__							      \
+   ({ const __cpu_mask *__arr1 = (cpusetp1)->__bits;			      \
+      const __cpu_mask *__arr2 = (cpusetp2)->__bits;			      \
+      size_t __imax = (setsize) / sizeof (__cpu_mask);			      \
+      size_t __i;							      \
+      for (__i = 0; __i < __imax; ++__i)				      \
+	if (__arr1[__i] != __arr2[__i])					      \
+	  break;							      \
+      __i == __imax; }))
+# endif
+
+# define __CPU_OP_S(setsize, destset, srcset1, srcset2, op) \
+  (__extension__							      \
+   ({ cpu_set_t *__dest = (destset);					      \
+      const __cpu_mask *__arr1 = (srcset1)->__bits;			      \
+      const __cpu_mask *__arr2 = (srcset2)->__bits;			      \
+      size_t __imax = (setsize) / sizeof (__cpu_mask);			      \
+      size_t __i;							      \
+      for (__i = 0; __i < __imax; ++__i)				      \
+	((__cpu_mask *) __dest->__bits)[__i] = __arr1[__i] op __arr2[__i];    \
+      __dest; }))
+
+# define __CPU_ALLOC_SIZE(count) \
+  ((((count) + __NCPUBITS - 1) / __NCPUBITS) * sizeof (__cpu_mask))
+# 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
+
+#endif /* bits/cpu-set.h */
diff --git a/posix/sched.h b/posix/sched.h
index 7037ab398d..d5cdac37b0 100644
--- a/posix/sched.h
+++ b/posix/sched.h
@@ -39,11 +39,13 @@ typedef __pid_t pid_t;
 # define __pid_t_defined
 #endif
 
-
 /* Get system specific constant and data structure definitions.  */
 #include <bits/sched.h>
-/* Define the real names for the elements of `struct sched_param'.  */
-#define sched_priority	__sched_priority
+#include <bits/cpu-set.h>
+
+/* Backward compatibility.  */
+#define sched_priority    sched_priority
+#define __sched_priority  sched_priority
 
 
 __BEGIN_DECLS