+++ /dev/null
-// java-interp.h - Header file for the bytecode interpreter. -*- c++ -*-
-
-/* Copyright (C) 1999, 2000, 2001 Free Software Foundation
-
- This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
-details. */
-
-#ifndef __JAVA_INTERP_H__
-#define __JAVA_INTERP_H__
-
-#include <jvm.h>
-#include <java-cpool.h>
-
-#ifdef INTERPRETER
-
-#pragma interface
-
-#include <java/lang/Class.h>
-#include <java/lang/ClassLoader.h>
-
-extern "C" {
-#include <ffi.h>
-}
-
-extern inline jboolean
-_Jv_IsInterpretedClass (jclass c)
-{
- return (c->loader != 0);
-}
-
-struct _Jv_ResolvedMethod;
-
-void _Jv_DefineClass (jclass, jbyteArray, jint, jint);
-
-void _Jv_InitField (jobject, jclass, int);
-void * _Jv_AllocMethodInvocation (jsize size);
-int _Jv_count_arguments (_Jv_Utf8Const *signature,
- jboolean staticp = true);
-void _Jv_VerifyMethod (_Jv_InterpMethod *method);
-
-/* FIXME: this should really be defined in some more generic place */
-#define ROUND(V, A) (((((unsigned) (V))-1) | ((A)-1))+1)
-
-/* the interpreter is written in C++, primarily because it makes it easy for
- * the entire thing to be "friend" with class Class. */
-
-class _Jv_InterpClass;
-class _Jv_InterpMethod;
-class _Jv_InterpMethodInvocation;
-
-class _Jv_InterpException
-{
- int start_pc;
- int end_pc;
- int handler_pc;
- int handler_type;
-
- friend class _Jv_ClassReader;
- friend class _Jv_InterpMethod;
- friend class _Jv_BytecodeVerifier;
-};
-
-// Base class for method representations. Subclasses are interpreted
-// and JNI methods.
-class _Jv_MethodBase
-{
-protected:
- // The class which defined this method.
- _Jv_InterpClass *defining_class;
-
- // The method description.
- _Jv_Method *self;
-
- // Size of raw arguments.
- _Jv_ushort args_raw_size;
-
-public:
- _Jv_Method *get_method ()
- {
- return self;
- }
-};
-
-class _Jv_InterpMethod : public _Jv_MethodBase
-{
- _Jv_ushort max_stack;
- _Jv_ushort max_locals;
- int code_length;
-
- _Jv_ushort exc_count;
-
- unsigned char* bytecode ()
- {
- return
- ((unsigned char*)this)
- + ROUND((sizeof (_Jv_InterpMethod)
- + exc_count*sizeof (_Jv_InterpException)), 4);
- }
-
- _Jv_InterpException * exceptions ()
- {
- return (_Jv_InterpException*) (this+1);
- }
-
- static size_t size (int exc_count, int code_length)
- {
- return
- ROUND ((sizeof (_Jv_InterpMethod)
- + (exc_count * sizeof (_Jv_InterpException))), 4)
- + code_length;
- }
-
- // return the method's invocation pointer (a stub).
- void *ncode ();
- void continue1 (_Jv_InterpMethodInvocation *inv);
-
- static void run_normal (ffi_cif*, void*, ffi_raw*, void*);
- static void run_synch_object (ffi_cif*, void*, ffi_raw*, void*);
- static void run_synch_class (ffi_cif*, void*, ffi_raw*, void*);
-
- inline jobject run (ffi_cif*, void*, ffi_raw*,
- _Jv_InterpMethodInvocation*);
-
- bool find_exception (jobject ex,
- _Jv_InterpMethodInvocation *inv);
-
- public:
- static void dump_object(jobject o);
-
- friend class _Jv_ClassReader;
- friend class _Jv_InterpMethodInvocation;
- friend class _Jv_BytecodeVerifier;
-
- friend void _Jv_PrepareClass(jclass);
-};
-
-class _Jv_InterpMethodInvocation {
- _Jv_InterpMethod *running;
- _Jv_word *sp;
- unsigned char *pc;
- _Jv_word state[0];
-
- _Jv_word* stack_base () { return &state[0]; }
- _Jv_word* local_base () { return &state[running->max_stack]; }
-
- friend class _Jv_InterpMethod;
-};
-
-class _Jv_InterpClass : public java::lang::Class
-{
- _Jv_MethodBase **interpreted_methods;
- _Jv_ushort *field_initializers;
-
- friend class _Jv_ClassReader;
- friend class _Jv_InterpMethod;
- friend void _Jv_PrepareClass(jclass);
- friend void _Jv_InitField (jobject, jclass, int);
-#ifdef JV_MARKOBJ_DECL
- friend JV_MARKOBJ_DECL;
-#endif
-
- friend _Jv_MethodBase ** _Jv_GetFirstMethod (_Jv_InterpClass *klass);
-};
-
-extern inline _Jv_MethodBase **
-_Jv_GetFirstMethod (_Jv_InterpClass *klass)
-{
- return klass->interpreted_methods;
-}
-
-struct _Jv_ResolvedMethod {
- jint stack_item_count;
- jint vtable_index;
- jclass klass;
- _Jv_Method* method;
-
- // a resolved method holds the cif in-line, so that _Jv_MarkObj just needs
- // to mark the resolved method to hold on to the cif. Some memory could be
- // saved by keeping a cache of cif's, since many will be the same.
- ffi_cif cif;
- ffi_type * arg_types[0];
-};
-
-class _Jv_JNIMethod : public _Jv_MethodBase
-{
- // The underlying function. If NULL we have to look for the
- // function.
- void *function;
-
- // This is the CIF used by the JNI function.
- ffi_cif jni_cif;
-
- // These are the argument types used by the JNI function.
- ffi_type **jni_arg_types;
-
- // This function is used when making a JNI call from the interpreter.
- static void call (ffi_cif *, void *, ffi_raw *, void *);
-
- void *ncode ();
-
- friend class _Jv_ClassReader;
- friend void _Jv_PrepareClass(jclass);
-
-public:
- // FIXME: this is ugly.
- void set_function (void *f)
- {
- function = f;
- }
-};
-
-#endif /* INTERPRETER */
-
-#endif /* __JAVA_INTERP_H__ */
projects / msp430-gcc.git / blobdiff