e210488e0d
This is the first patch out of a series of patches that add support for
AArch64, the new 64bit execution state of the ARMv8 Architecture. The
patches add support for LP64 programming model.
The patch adds:
* "arch-aarch64" to the architecture directories.
* "arch-aarch64/include" - headers used by libc
* "arch-aarch64/bionic":
- crtbegin, crtend support;
- aarch64 specific syscall stubs;
- setjmp, clone, vfork assembly files.
Change-Id: If72b859f81928d03ad05d4ccfcb54c2f5dbf99a5
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
59 lines
2.1 KiB
C
59 lines
2.1 KiB
C
/*
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* Copyright (C) 2013 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _AARCH64_ENDIAN_H_
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#define _AARCH64_ENDIAN_H_
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#include <sys/types.h>
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#include <sys/endian.h>
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#ifdef __GNUC__
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#define __swap16md(x) ({ \
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register u_int16_t _x = (x); \
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__asm volatile ("rev16 %0, %0" : "+r" (_x)); \
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_x; \
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})
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/* Use GCC builtins */
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#define __swap32md(x) __builtin_bswap32(x)
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#define __swap64md(x) __builtin_bswap64(x)
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/* Tell sys/endian.h we have MD variants of the swap macros. */
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#define MD_SWAP
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#endif /* __GNUC__ */
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#if defined(__AARCH64EB__)
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#define _BYTE_ORDER _BIG_ENDIAN
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#else
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#define _BYTE_ORDER _LITTLE_ENDIAN
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#endif
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#endif /* _AARCH64_ENDIAN_H_ */
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