[qemu.git] / dyngen-exec.h

/*
 *  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

#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__) */
Commit	Line	Data
	1	/*
	2	* dyngen defines for micro operation code
	3	*
	4	* Copyright (c) 2003 Fabrice Bellard
	5	*
	6	* This library is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU Lesser General Public
	8	* License as published by the Free Software Foundation; either
	9	* version 2 of the License, or (at your option) any later version.
	10	*
	11	* This library is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* Lesser General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU Lesser General Public
	17	* License along with this library; if not, see <http://www.gnu.org/licenses/>.
	18	*/
	19	#if !defined(__DYNGEN_EXEC_H__)
	20	#define __DYNGEN_EXEC_H__
	21
	22	#include "qemu-common.h"
	23
	24	#ifdef __OpenBSD__
	25	#include <sys/types.h>
	26	#endif
	27
	28	/* XXX: This may be wrong for 64-bit ILP32 hosts. */
	29	typedef void * host_reg_t;
	30
	31	#if defined(__i386__)
	32	#define AREG0 "ebp"
	33	#elif defined(__x86_64__)
	34	#define AREG0 "r14"
	35	#elif defined(_ARCH_PPC)
	36	#define AREG0 "r27"
	37	#elif defined(__arm__)
	38	#define AREG0 "r7"
	39	#elif defined(__hppa__)
	40	#define AREG0 "r17"
	41	#elif defined(__mips__)
	42	#define AREG0 "s0"
	43	#elif defined(__sparc__)
	44	#ifdef CONFIG_SOLARIS
	45	#define AREG0 "g2"
	46	#else
	47	#ifdef __sparc_v9__
	48	#define AREG0 "g5"
	49	#else
	50	#define AREG0 "g6"
	51	#endif
	52	#endif
	53	#elif defined(__s390__)
	54	#define AREG0 "r10"
	55	#elif defined(__alpha__)
	56	/* Note $15 is the frame pointer, so anything in op-i386.c that would
	57	require a frame pointer, like alloca, would probably loose. */
	58	#define AREG0 "$15"
	59	#elif defined(__mc68000)
	60	#define AREG0 "%a5"
	61	#elif defined(__ia64__)
	62	#define AREG0 "r7"
	63	#else
	64	#error unsupported CPU
	65	#endif
	66
	67	#define xglue(x, y) x ## y
	68	#define glue(x, y) xglue(x, y)
	69	#define stringify(s) tostring(s)
	70	#define tostring(s) #s
	71
	72	/* The return address may point to the start of the next instruction.
	73	Subtracting one gets us the call instruction itself. */
	74	#if defined(__s390__) && !defined(__s390x__)
	75	# define GETPC() ((void*)(((unsigned long)__builtin_return_address(0) & 0x7fffffffUL) - 1))
	76	#elif defined(__arm__)
	77	/* Thumb return addresses have the low bit set, so we need to subtract two.
	78	This is still safe in ARM mode because instructions are 4 bytes. */
	79	# define GETPC() ((void *)((unsigned long)__builtin_return_address(0) - 2))
	80	#else
	81	# define GETPC() ((void *)((unsigned long)__builtin_return_address(0) - 1))
	82	#endif
	83
	84	#endif /* !defined(__DYNGEN_EXEC_H__) */