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, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA  02110-1301 USA
  19  */
  20 #if !defined(__DYNGEN_EXEC_H__)
  21 #define __DYNGEN_EXEC_H__
  22
  23 /* prevent Solaris from trying to typedef FILE in gcc's
  24    include/floatingpoint.h which will conflict with the
  25    definition down below */
  26 #ifdef __sun__
  27 #define _FILEDEFED
  28 #endif
  29
  30 /* NOTE: standard headers should be used with special care at this
  31    point because host CPU registers are used as global variables. Some
  32    host headers do not allow that. */
  33 #include <stddef.h>
  34 #include <stdint.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 HOST_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 #undef NULL
  52 #define NULL 0
  53
  54 #if defined(__i386__)
  55 #define AREG0 "ebp"
  56 #define AREG1 "ebx"
  57 #define AREG2 "esi"
  58 #elif defined(__x86_64__)
  59 #define AREG0 "r14"
  60 #define AREG1 "r15"
  61 #define AREG2 "r12"
  62 #elif defined(_ARCH_PPC)
  63 #define AREG0 "r27"
  64 #define AREG1 "r24"
  65 #define AREG2 "r25"
  66 #elif defined(__arm__)
  67 #define AREG0 "r7"
  68 #define AREG1 "r4"
  69 #define AREG2 "r5"
  70 #elif defined(__hppa__)
  71 #define AREG0 "r17"
  72 #define AREG1 "r14"
  73 #define AREG2 "r15"
  74 #elif defined(__mips__)
  75 #define AREG0 "fp"
  76 #define AREG1 "s0"
  77 #define AREG2 "s1"
  78 #elif defined(__sparc__)
  79 #ifdef HOST_SOLARIS
  80 #define AREG0 "g2"
  81 #define AREG1 "g3"
  82 #define AREG2 "g4"
  83 #else
  84 #ifdef __sparc_v9__
  85 #define AREG0 "g5"
  86 #define AREG1 "g6"
  87 #define AREG2 "g7"
  88 #else
  89 #define AREG0 "g6"
  90 #define AREG1 "g1"
  91 #define AREG2 "g2"
  92 #endif
  93 #endif
  94 #elif defined(__s390__)
  95 #define AREG0 "r10"
  96 #define AREG1 "r7"
  97 #define AREG2 "r8"
  98 #elif defined(__alpha__)
  99 /* Note $15 is the frame pointer, so anything in op-i386.c that would
 100    require a frame pointer, like alloca, would probably loose.  */
 101 #define AREG0 "$15"
 102 #define AREG1 "$9"
 103 #define AREG2 "$10"
 104 #elif defined(__mc68000)
 105 #define AREG0 "%a5"
 106 #define AREG1 "%a4"
 107 #define AREG2 "%d7"
 108 #elif defined(__ia64__)
 109 #define AREG0 "r7"
 110 #define AREG1 "r4"
 111 #define AREG2 "r5"
 112 #else
 113 #error unsupported CPU
 114 #endif
 115
 116 #define xglue(x, y) x ## y
 117 #define glue(x, y) xglue(x, y)
 118 #define stringify(s)    tostring(s)
 119 #define tostring(s)     #s
 120
 121 /* The return address may point to the start of the next instruction.
 122    Subtracting one gets us the call instruction itself.  */
 123 #if defined(__s390__)
 124 # define GETPC() ((void*)(((unsigned long)__builtin_return_address(0) & 0x7fffffffUL) - 1))
 125 #elif defined(__arm__)
 126 /* Thumb return addresses have the low bit set, so we need to subtract two.
 127    This is still safe in ARM mode because instructions are 4 bytes.  */
 128 # define GETPC() ((void *)((unsigned long)__builtin_return_address(0) - 2))
 129 #else
 130 # define GETPC() ((void *)((unsigned long)__builtin_return_address(0) - 1))
 131 #endif
 132
 133 #endif /* !defined(__DYNGEN_EXEC_H__) */