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authorBrad Bishop <bradleyb@us.ibm.com>2014-06-30 22:10:16 -0500
committerPatrick Williams <iawillia@us.ibm.com>2014-07-02 22:49:29 -0500
commitbf4630076762d9c20c16c80c1c791f352b046dd1 (patch)
treeefc67bad010a28fd1abf5aeeefda2a969514fd97 /clib/misc.h
downloadffs-bf4630076762d9c20c16c80c1c791f352b046dd1.zip
ffs-bf4630076762d9c20c16c80c1c791f352b046dd1.tar.gz
Port FFS tools over from Building Block repository.
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+/*
+ * Copyright (c) International Business Machines Corp., 2014
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/*
+ * File: misc.h
+ * Author: Shaun Wetzstein <shaun@us.ibm.com?
+ * Descr: Misc. library helper functions
+ * Note:
+ * Date: 10/22/10
+ */
+
+#ifndef __MISC_H__
+#define __MISC_H__
+
+#include <stdint.h>
+#include <stdio.h>
+
+#include <sys/syscall.h>
+
+#include "attribute.h"
+
+#include "align.h"
+#include "min.h"
+#include "max.h"
+
+#define INT32_BIT (CHAR_BIT*sizeof(int32_t))
+
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+
+#ifndef gettid
+#define gettid() ({ \
+ pid_t __tid = (pid_t)syscall(SYS_gettid); \
+ __tid; \
+ })
+#endif
+
+#define is_pow2(x) \
+({ \
+ typeof(x) _x = (x); \
+ (((_x) != 0) && !((_x) & ((_x) - 1))); \
+})
+
+#define __align(x,y) \
+({ \
+ assert(is_pow2((y))); \
+ typeof((y)) _y = (y) - 1; \
+ typeof((x)) _x = ((x)+_y) & ~_y; \
+ _x; \
+})
+
+extern void prefetch(void *addr, size_t len, ...) __nonnull((1));
+extern void print_binary(FILE *, void *, size_t);
+extern void dump_memory(FILE *, uint32_t, const void *__restrict,
+ size_t) __nonnull((1, 3));
+extern unsigned long align(unsigned long size, unsigned long offset);
+extern int __round_pow2(int size);
+
+#endif /* __MISC_H__ */
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