LXR qemu/dyngen-exec.h

   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
  35#ifdef __OpenBSD__
  36#include <sys/types.h>
  37#endif
  38
  39/* XXX: This may be wrong for 64-bit ILP32 hosts.  */
  40typedef void * host_reg_t;
  41
  42#ifdef CONFIG_BSD
  43typedef struct __sFILE FILE;
  44#else
  45typedef struct FILE FILE;
  46#endif
  47extern int fprintf(FILE *, const char *, ...);
  48extern int fputs(const char *, FILE *);
  49extern int printf(const char *, ...);
  50
  51#if defined(__i386__)
  52#define AREG0 "ebp"
  53#define AREG1 "ebx"
  54#define AREG2 "esi"
  55#elif defined(__x86_64__)
  56#define AREG0 "r14"
  57#define AREG1 "r15"
  58#define AREG2 "r12"
  59#elif defined(_ARCH_PPC)
  60#define AREG0 "r27"
  61#define AREG1 "r24"
  62#define AREG2 "r25"
  63#elif defined(__arm__)
  64#define AREG0 "r7"
  65#define AREG1 "r4"
  66#define AREG2 "r5"
  67#elif defined(__hppa__)
  68#define AREG0 "r17"
  69#define AREG1 "r14"
  70#define AREG2 "r15"
  71#elif defined(__mips__)
  72#define AREG0 "fp"
  73#define AREG1 "s0"
  74#define AREG2 "s1"
  75#elif defined(__sparc__)
  76#ifdef CONFIG_SOLARIS
  77#define AREG0 "g2"
  78#define AREG1 "g3"
  79#define AREG2 "g4"
  80#else
  81#ifdef __sparc_v9__
  82#define AREG0 "g5"
  83#define AREG1 "g6"
  84#define AREG2 "g7"
  85#else
  86#define AREG0 "g6"
  87#define AREG1 "g1"
  88#define AREG2 "g2"
  89#endif
  90#endif
  91#elif defined(__s390__)
  92#define AREG0 "r10"
  93#define AREG1 "r7"
  94#define AREG2 "r8"
  95#elif defined(__alpha__)
  96/* Note $15 is the frame pointer, so anything in op-i386.c that would
  97   require a frame pointer, like alloca, would probably loose.  */
  98#define AREG0 "$15"
  99#define AREG1 "$9"
 100#define AREG2 "$10"
 101#elif defined(__mc68000)
 102#define AREG0 "%a5"
 103#define AREG1 "%a4"
 104#define AREG2 "%d7"
 105#elif defined(__ia64__)
 106#define AREG0 "r7"
 107#define AREG1 "r4"
 108#define AREG2 "r5"
 109#else
 110#error unsupported CPU
 111#endif
 112
 113#define xglue(x, y) x ## y
 114#define glue(x, y) xglue(x, y)
 115#define stringify(s)    tostring(s)
 116#define tostring(s)     #s
 117
 118/* The return address may point to the start of the next instruction.
 119   Subtracting one gets us the call instruction itself.  */
 120#if defined(__s390__) && !defined(__s390x__)
 121# define GETPC() ((void*)(((unsigned long)__builtin_return_address(0) & 0x7fffffffUL) - 1))
 122#elif defined(__arm__)
 123/* Thumb return addresses have the low bit set, so we need to subtract two.
 124   This is still safe in ARM mode because instructions are 4 bytes.  */
 125# define GETPC() ((void *)((unsigned long)__builtin_return_address(0) - 2))
 126#else
 127# define GETPC() ((void *)((unsigned long)__builtin_return_address(0) - 1))
 128#endif
 129
 130#endif /* !defined(__DYNGEN_EXEC_H__) */
 131