From: Sebastian Huber <sebastian.huber@embedded-brains.de>
To: newlib@sourceware.org
Subject: [PATCH v2 1/8] Add generic <machine/_align.h> for RTEMS
Date: Wed, 24 May 2017 09:34:00 -0000 [thread overview]
Message-ID: <20170524093359.18334-1-sebastian.huber@embedded-brains.de> (raw)
It uses __BIGGEST_ALIGNMENT__ which is available in recent GCC and
LLVM/clang.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
---
newlib/libc/sys/rtems/include/machine/_align.h | 38 ++++++++++++++++++++++++++
newlib/libc/sys/rtems/include/machine/param.h | 15 +++-------
2 files changed, 42 insertions(+), 11 deletions(-)
create mode 100644 newlib/libc/sys/rtems/include/machine/_align.h
diff --git a/newlib/libc/sys/rtems/include/machine/_align.h b/newlib/libc/sys/rtems/include/machine/_align.h
new file mode 100644
index 000000000..f141c7820
--- /dev/null
+++ b/newlib/libc/sys/rtems/include/machine/_align.h
@@ -0,0 +1,38 @@
+/*-
+ * Copyright (c) 2017 embedded brains GmbH
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _MACHINE__ALIGN_H_
+#define _MACHINE__ALIGN_H_
+
+#ifdef __BIGGEST_ALIGNMENT__
+#define _ALIGNBYTES (__BIGGEST_ALIGNMENT__ - 1UL)
+#else
+#define _ALIGNBYTES (sizeof(long long) - 1UL)
+#endif
+
+#define _ALIGN(_p) (((unsigned long)(_p) + _ALIGNBYTES) & ~_ALIGNBYTES)
+
+#endif /* !_MACHINE__ALIGN_H_ */
diff --git a/newlib/libc/sys/rtems/include/machine/param.h b/newlib/libc/sys/rtems/include/machine/param.h
index 74891f504..622194bbb 100644
--- a/newlib/libc/sys/rtems/include/machine/param.h
+++ b/newlib/libc/sys/rtems/include/machine/param.h
@@ -14,17 +14,10 @@
#define MID_MACHINE MID_I386
*/
-/*
- * Round p (pointer or byte index) up to a correctly-aligned value
- * for all data types (int, long, ...). The result is unsigned int
- * and must be cast to any desired pointer type.
- */
-#if defined(__sparc__)
-#define ALIGNBYTES (sizeof(double) - 1)
-#else
-#define ALIGNBYTES (sizeof(int) - 1)
-#endif
-#define ALIGN(p) (((unsigned)(p) + ALIGNBYTES) & ~ALIGNBYTES)
+#include <machine/_align.h>
+
+#define ALIGNBYTES _ALIGNBYTES
+#define ALIGN(p) _ALIGN(p)
#define PAGE_SHIFT 12 /* LOG2(PAGE_SIZE) */
#define PAGE_SIZE (1<<PAGE_SHIFT) /* bytes/page */
--
2.12.0
next reply other threads:[~2017-05-24 9:34 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-24 9:34 Sebastian Huber [this message]
2017-05-24 9:34 ` [PATCH v2 8/8] Add de-facto standard <sys/ioctl.h> " Sebastian Huber
2017-05-24 9:34 ` [PATCH v2 2/8] FreeBSD compatibility for RTEMS <sys/param.h> Sebastian Huber
2017-05-24 9:34 ` [PATCH v2 4/8] Move ARM access.c from machine to sys Sebastian Huber
2017-05-24 9:34 ` [PATCH v2 6/8] FreeBSD compatibility for RTEMS <sys/cpuset.h> Sebastian Huber
2017-05-24 9:34 ` [PATCH v2 5/8] Add __bitcount*() to RTEMS <machine/types.h> Sebastian Huber
2017-05-24 9:34 ` [PATCH v2 3/8] Increase MSIZE for RTEMS Sebastian Huber
2017-05-24 9:35 ` [PATCH v2 1/8] Add generic <machine/_align.h> " Sebastian Huber
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