File:  [Qemu by Fabrice Bellard] / qemu / dyngen-exec.h
Revision 1.1.1.11 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 18:34:07 2018 UTC (3 years, 7 months ago) by root
Branches: qemu, MAIN
CVS tags: qemu1000, qemu0151, qemu0150, qemu0141, qemu0140, HEAD
qemu 0.14.0

    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__) */

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