libjava/include/jni_md.h

   1 /* jni_md.h
   2    Copyright (C) 2001, 2005, 2007, 2010, 2011 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 02110-1301 USA.
  20
  21 As a special exception, if you link this library with other files to
  22 produce an executable, this library does not by itself cause the
  23 resulting executable to be covered by the GNU General Public License.
  24 This exception does not however invalidate any other reasons why the
  25 executable file might be covered by the GNU General Public License. */
  26
  27 #ifndef __GCJ_JNI_MD_H__
  28 #define __GCJ_JNI_MD_H__
  29
  30 #include <gcj/libgcj-config.h>
  31
  32 #ifdef __GCJ_JNI_IMPL__
  33
  34 /* If __GCJ_JNI_IMPL__ is defined, then we assume that we're building
  35    libgcj itself, and we include headers which taint the namespace
  36    more than is acceptable for the ordinary JNI user.  */
  37 #include <gcj/javaprims.h>
  38 #include <gcj/array.h>
  39 #include <gnu/gcj/runtime/JNIWeakRef.h>
  40
  41 typedef gnu::gcj::runtime::JNIWeakRef *jweak;
  42
  43 typedef struct _Jv_JNIEnv JNIEnv;
  44 typedef struct _Jv_JavaVM JavaVM;
  45
  46 #define JNI_TRUE true
  47 #define JNI_FALSE false
  48
  49 /* We defined jobject and friends, so don't redefine them in jni.h.  */
  50 #define _CLASSPATH_VM_JNI_TYPES_DEFINED
  51
  52 /* We defined jmethodID and and jfieldID, so don't redefine them in
  53    jni.h.  */
  54 #define _CLASSPATH_VM_INTERNAL_TYPES_DEFINED
  55
  56 /* Contents of the JNIEnv; but only inside the implementation.  */
  57 #define _CLASSPATH_JNIENV_CONTENTS                                      \
  58   /* The current exception.  */                                         \
  59   jthrowable ex;                                                        \
  60                                                                         \
  61   /* The chain of local frames.  */                                     \
  62   struct _Jv_JNI_LocalFrame *locals;                                    \
  63                                                                         \
  64   /* The bottom-most element of the chain, initialized with the env and \
  65      reused between non-nesting JNI calls.  */                          \
  66   struct _Jv_JNI_LocalFrame *bottom_locals;
  67
  68 /*  JNI calling convention.  Also defined in javaprims.h. */
  69 #ifndef JNICALL
  70 #if (defined (_WIN32) || defined (__WIN32__) || defined (WIN32)) \
  71     && !defined (_WIN64)
  72   #define JNICALL __stdcall
  73  #else
  74   #define JNICALL
  75  #endif
  76 #endif
  77
  78 #else /* __GCJ_JNI_IMPL__ */
  79
  80 # ifdef __GNUC__
  81
  82 /* If we're using gcc, we can use a platform-independent scheme to get
  83    the right integer types.  FIXME: this is not always correct, for
  84    instance on the c4x it will be wrong -- it depends on whether
  85    QImode is 8 bits.  */
  86 typedef int    jbyte  __attribute__((__mode__(__QI__)));
  87 typedef int    jshort __attribute__((__mode__(__HI__)));
  88 typedef int    jint   __attribute__((__mode__(__SI__)));
  89 typedef int    jlong  __attribute__((__mode__(__DI__)));
  90 typedef unsigned int   jboolean __attribute__((__mode__(__QI__)));
  91 typedef unsigned short jchar __attribute__((__mode__(__HI__)));
  92 typedef float  jfloat;
  93 typedef double jdouble;
  94 typedef jint jsize;
  95
  96 # else /* __GNUC__ */
  97
  98 #  ifdef JV_HAVE_INTTYPES_H
  99
 100 /* If <inttypes.h> is available, we use it.  */
 101
 102 #   include <inttypes.h>
 103
 104 typedef int8_t jbyte;
 105 typedef int16_t jshort;
 106 typedef int32_t jint;
 107 typedef int64_t jlong;
 108 typedef float jfloat;
 109 typedef double jdouble;
 110 typedef jint jsize;
 111 typedef uint8_t jboolean;
 112 typedef uint16_t jchar;
 113
 114 #  else /* JV_HAVE_INTTYPES_H */
 115
 116 /* For now, we require either gcc or <inttypes.h>.  If we did more
 117    work at configure time we could get around this, but right now it
 118    doesn't seem worth it.  */
 119 #   error jni.h not ported to this platform
 120
 121 #  endif /* JV_HAVE_INTTYPES_H */
 122
 123 # endif /* __GNUC__ */
 124
 125 #endif /* __GCJ_JNI_IMPL__ */
 126
 127
 128 /* Linkage and calling conventions. */
 129 #if (defined (_WIN32) || defined (__WIN32__) || defined (WIN32)) \
 130     && !defined (_WIN64)
 131
 132 #define JNIIMPORT        __declspec(dllimport)
 133 #define JNIEXPORT        __declspec(dllexport)
 134
 135 #ifndef JNICALL
 136 #define JNICALL __stdcall
 137 #endif
 138
 139 #else /* !( _WIN32 || __WIN32__ || WIN32) || _WIN64 */
 140
 141 #define JNIIMPORT
 142 #if defined(__GNUC__) && __GNUC__ > 3
 143 #define JNIEXPORT __attribute__ ((visibility("default")))
 144 #else
 145 #define JNIEXPORT
 146 #endif
 147
 148 #ifndef JNICALL
 149 #define JNICALL
 150 #endif
 151
 152 #endif /* !( _WIN32 || __WIN32__ || WIN32) || _WIN64 */
 153
 154 /* These defines apply to symbols in libgcj */
 155 #ifdef __GCJ_DLL__
 156 # ifdef __GCJ_JNI_IMPL__
 157 #  define _CLASSPATH_JNIIMPEXP JNIEXPORT
 158 # else
 159 #  define _CLASSPATH_JNIIMPEXP JNIIMPORT
 160 # endif /* ! __GCJ_JNI_IMPL__ */
 161 #else /* ! __GCJ_DLL__ */
 162 # define _CLASSPATH_JNIIMPEXP
 163 #endif /*  __GCJ_DLL__ */
 164
 165 #endif /* __GCJ_JNI_MD_H__ */