github.com/goccy/go-jit@v0.0.0-20200514131505-ff78d45cf6af/internal/ccall/jit-apply-func.h (about)

     1  /*
     2   * jit-apply-func.h - Definition of "__builtin_apply" and friends.
     3   *
     4   * Copyright (C) 2004  Southern Storm Software, Pty Ltd.
     5   *
     6   * This file is part of the libjit library.
     7   *
     8   * The libjit library is free software: you can redistribute it and/or
     9   * modify it under the terms of the GNU Lesser General Public License
    10   * as published by the Free Software Foundation, either version 2.1 of
    11   * the License, or (at your option) any later version.
    12   *
    13   * The libjit library is distributed in the hope that it will be useful,
    14   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    15   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    16   * Lesser General Public License for more details.
    17   *
    18   * You should have received a copy of the GNU Lesser General Public
    19   * License along with the libjit library.  If not, see
    20   * <http://www.gnu.org/licenses/>.
    21   */
    22  
    23  #ifndef	_JIT_APPLY_FUNC_H
    24  #define	_JIT_APPLY_FUNC_H
    25  
    26  #if defined(__i386) || defined(__i386__) || defined(_M_IX86)
    27  
    28  #include "jit-apply-x86.h"
    29  
    30  #elif defined(__arm) || defined(__arm__)
    31  
    32  #include "jit-apply-arm.h"
    33  
    34  #elif defined(__alpha) || defined(__alpha__)
    35  
    36  #include "jit-apply-alpha.h"
    37  
    38  #elif defined(__x86_64) || defined(__x86_64__)
    39  
    40  #include "jit-apply-x86-64.h"
    41  
    42  #endif
    43  
    44  #if !defined(jit_builtin_apply)
    45  #define	jit_builtin_apply(func,args,size,return_float,return_buf)	\
    46  		do { \
    47  			(return_buf) = __builtin_apply \
    48  					((void (*)())(func), (args), (size)); \
    49  		} while (0)
    50  #endif
    51  
    52  #if !defined(jit_builtin_apply_args)
    53  #define	jit_builtin_apply_args(type,args)	\
    54  		do { \
    55  			(args) = (type)__builtin_apply_args(); \
    56  		} while (0)
    57  #endif
    58  
    59  #if !defined(jit_builtin_return_int)
    60  #define	jit_builtin_return_int(return_buf)	\
    61  		do { \
    62  			__builtin_return((return_buf)); \
    63  		} while (0)
    64  #endif
    65  
    66  #if !defined(jit_builtin_return_long)
    67  #define	jit_builtin_return_long(return_buf)	\
    68  		do { \
    69  			__builtin_return((return_buf)); \
    70  		} while (0)
    71  #endif
    72  
    73  #if !defined(jit_builtin_return_float)
    74  #define	jit_builtin_return_float(return_buf)	\
    75  		do { \
    76  			__builtin_return((return_buf)); \
    77  		} while (0)
    78  #endif
    79  
    80  #if !defined(jit_builtin_return_double)
    81  #define	jit_builtin_return_double(return_buf)	\
    82  		do { \
    83  			__builtin_return((return_buf)); \
    84  		} while (0)
    85  #endif
    86  
    87  #if !defined(jit_builtin_return_nfloat)
    88  #define	jit_builtin_return_nfloat(return_buf)	\
    89  		do { \
    90  			__builtin_return((return_buf)); \
    91  		} while (0)
    92  #endif
    93  
    94  /*
    95   * Create a closure for the underlying platform in the given buffer.
    96   * The closure must arrange to call "func" with two arguments:
    97   * "closure" and a pointer to an apply structure.
    98   */
    99  void _jit_create_closure(unsigned char *buf, void *func,
   100                           void *closure, void *type);
   101  
   102  /*
   103   * Create a redirector stub for the underlying platform in the given buffer.
   104   * The redirector arranges to call "func" with the "user_data" argument.
   105   * It is assumed that "func" returns a pointer to the actual function.
   106   * Returns a pointer to the position in "buf" where the redirector starts,
   107   * which may be different than "buf" if alignment occurred.
   108   */
   109  void *_jit_create_redirector(unsigned char *buf, void *func,
   110  							 void *user_data, int abi);
   111  
   112  
   113  /*
   114   * Create the indirector for the function.
   115   */
   116  void *_jit_create_indirector(unsigned char *buf, void **entry);
   117  
   118  /*
   119   * Pad a buffer with NOP instructions.  Used to align code.
   120   * This will only be called if "jit_should_pad" is defined.
   121   */
   122  void _jit_pad_buffer(unsigned char *buf, int len);
   123  
   124  #endif	/* _JIT_APPLY_FUNC_H */