File:  [Qemu by Fabrice Bellard] / qemu / dyngen-exec.h
Revision 1.1.1.10 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 18:24:14 2018 UTC (3 years, 8 months ago) by root
Branches: qemu, MAIN
CVS tags: qemu0130, HEAD
qemu 0.13.0

    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: /* prevent Solaris from trying to typedef FILE in gcc's
   23:    include/floatingpoint.h which will conflict with the
   24:    definition down below */
   25: #ifdef __sun__
   26: #define _FILEDEFED
   27: #endif
   28: 
   29: /* NOTE: standard headers should be used with special care at this
   30:    point because host CPU registers are used as global variables. Some
   31:    host headers do not allow that. */
   32: #include <stddef.h>
   33: #include <stdint.h>
   34: #include <stdbool.h>
   35: 
   36: #ifdef __OpenBSD__
   37: #include <sys/types.h>
   38: #endif
   39: 
   40: /* XXX: This may be wrong for 64-bit ILP32 hosts.  */
   41: typedef void * host_reg_t;
   42: 
   43: #ifdef CONFIG_BSD
   44: typedef struct __sFILE FILE;
   45: #else
   46: typedef struct FILE FILE;
   47: #endif
   48: extern int fprintf(FILE *, const char *, ...);
   49: extern int fputs(const char *, FILE *);
   50: extern int printf(const char *, ...);
   51: 
   52: #if defined(__i386__)
   53: #define AREG0 "ebp"
   54: #elif defined(__x86_64__)
   55: #define AREG0 "r14"
   56: #elif defined(_ARCH_PPC)
   57: #define AREG0 "r27"
   58: #elif defined(__arm__)
   59: #define AREG0 "r7"
   60: #elif defined(__hppa__)
   61: #define AREG0 "r17"
   62: #elif defined(__mips__)
   63: #define AREG0 "s0"
   64: #elif defined(__sparc__)
   65: #ifdef CONFIG_SOLARIS
   66: #define AREG0 "g2"
   67: #else
   68: #ifdef __sparc_v9__
   69: #define AREG0 "g5"
   70: #else
   71: #define AREG0 "g6"
   72: #endif
   73: #endif
   74: #elif defined(__s390__)
   75: #define AREG0 "r10"
   76: #elif defined(__alpha__)
   77: /* Note $15 is the frame pointer, so anything in op-i386.c that would
   78:    require a frame pointer, like alloca, would probably loose.  */
   79: #define AREG0 "$15"
   80: #elif defined(__mc68000)
   81: #define AREG0 "%a5"
   82: #elif defined(__ia64__)
   83: #define AREG0 "r7"
   84: #else
   85: #error unsupported CPU
   86: #endif
   87: 
   88: #define xglue(x, y) x ## y
   89: #define glue(x, y) xglue(x, y)
   90: #define stringify(s)	tostring(s)
   91: #define tostring(s)	#s
   92: 
   93: /* The return address may point to the start of the next instruction.
   94:    Subtracting one gets us the call instruction itself.  */
   95: #if defined(__s390__) && !defined(__s390x__)
   96: # define GETPC() ((void*)(((unsigned long)__builtin_return_address(0) & 0x7fffffffUL) - 1))
   97: #elif defined(__arm__)
   98: /* Thumb return addresses have the low bit set, so we need to subtract two.
   99:    This is still safe in ARM mode because instructions are 4 bytes.  */
  100: # define GETPC() ((void *)((unsigned long)__builtin_return_address(0) - 2))
  101: #else
  102: # define GETPC() ((void *)((unsigned long)__builtin_return_address(0) - 1))
  103: #endif
  104: 
  105: #endif /* !defined(__DYNGEN_EXEC_H__) */

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