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.  */
  40 typedef void * host_reg_t;
  41
  42 #ifdef CONFIG_BSD
  43 typedef struct __sFILE FILE;
  44 #else
  45 typedef struct FILE FILE;
  46 #endif
  47 extern int fprintf(FILE *, const char *, ...);
  48 extern int fputs(const char *, FILE *);
  49 extern int printf(const char *, ...);
  50 #undef NULL
  51 #define NULL 0
  52
  53 #if defined(__i386__)
  54 #define AREG0 "ebp"
  55 #elif defined(__x86_64__)
  56 #define AREG0 "r14"
  57 #elif defined(_ARCH_PPC)
  58 #define AREG0 "r27"
  59 #elif defined(__arm__)
  60 #define AREG0 "r7"
  61 #elif defined(__hppa__)
  62 #define AREG0 "r17"
  63 #elif defined(__mips__)
  64 #define AREG0 "fp"
  65 #elif defined(__sparc__)
  66 #ifdef CONFIG_SOLARIS
  67 #define AREG0 "g2"
  68 #else
  69 #ifdef __sparc_v9__
  70 #define AREG0 "g5"
  71 #else
  72 #define AREG0 "g6"
  73 #endif
  74 #endif
  75 #elif defined(__s390__)
  76 #define AREG0 "r10"
  77 #elif defined(__alpha__)
  78 /* Note $15 is the frame pointer, so anything in op-i386.c that would
  79    require a frame pointer, like alloca, would probably loose.  */
  80 #define AREG0 "$15"
  81 #elif defined(__mc68000)
  82 #define AREG0 "%a5"
  83 #elif defined(__ia64__)
  84 #define AREG0 "r7"
  85 #else
  86 #error unsupported CPU
  87 #endif
  88
  89 #define xglue(x, y) x ## y
  90 #define glue(x, y) xglue(x, y)
  91 #define stringify(s)    tostring(s)
  92 #define tostring(s)     #s
  93
  94 /* The return address may point to the start of the next instruction.
  95    Subtracting one gets us the call instruction itself.  */
  96 #if defined(__s390__)
  97 # define GETPC() ((void*)(((uintptr_t)__builtin_return_address(0) & 0x7fffffffUL) - 1))
  98 #elif defined(__arm__)
  99 /* Thumb return addresses have the low bit set, so we need to subtract two.
 100    This is still safe in ARM mode because instructions are 4 bytes.  */
 101 # define GETPC() ((void *)((uintptr_t)__builtin_return_address(0) - 2))
 102 #else
 103 # define GETPC() ((void *)((uintptr_t)__builtin_return_address(0) - 1))
 104 #endif
 105
 106 #endif /* !defined(__DYNGEN_EXEC_H__) */