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/*
* dyngen defines for micro operation code
*
* Copyright (c) 2003 Fabrice Bellard
*
* This 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 of the License, or (at your option) any later version.
*
* This 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 this library; if not, see <http://www.gnu.org/licenses/>.
*/
#if !defined(__DYNGEN_EXEC_H__)
#define __DYNGEN_EXEC_H__
#include "qemu-common.h"
#ifdef __OpenBSD__
#include <sys/types.h>
#endif
/* XXX: This may be wrong for 64-bit ILP32 hosts. */
typedef void * host_reg_t;
#if defined(__i386__)
#define AREG0 "ebp"
#elif defined(__x86_64__)
#define AREG0 "r14"
#elif defined(_ARCH_PPC)
#define AREG0 "r27"
#elif defined(__arm__)
#define AREG0 "r7"
#elif defined(__hppa__)
#define AREG0 "r17"
#elif defined(__mips__)
#define AREG0 "s0"
#elif defined(__sparc__)
#ifdef CONFIG_SOLARIS
#define AREG0 "g2"
#else
#ifdef __sparc_v9__
#define AREG0 "g5"
#else
#define AREG0 "g6"
#endif
#endif
#elif defined(__s390__)
#define AREG0 "r10"
#elif defined(__alpha__)
/* Note $15 is the frame pointer, so anything in op-i386.c that would
require a frame pointer, like alloca, would probably loose. */
#define AREG0 "$15"
#elif defined(__mc68000)
#define AREG0 "%a5"
#elif defined(__ia64__)
#define AREG0 "r7"
#else
#error unsupported CPU
#endif
register CPUState *env asm(AREG0);
#define xglue(x, y) x ## y
#define glue(x, y) xglue(x, y)
#define stringify(s) tostring(s)
#define tostring(s) #s
/* The return address may point to the start of the next instruction.
Subtracting one gets us the call instruction itself. */
#if defined(__s390__) && !defined(__s390x__)
# define GETPC() ((void*)(((unsigned long)__builtin_return_address(0) & 0x7fffffffUL) - 1))
#elif defined(__arm__)
/* Thumb return addresses have the low bit set, so we need to subtract two.
This is still safe in ARM mode because instructions are 4 bytes. */
# define GETPC() ((void *)((unsigned long)__builtin_return_address(0) - 2))
#else
# define GETPC() ((void *)((unsigned long)__builtin_return_address(0) - 1))
#endif
#endif /* !defined(__DYNGEN_EXEC_H__) */
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