/* src/vm/method.hpp - method functions header Copyright (C) 1996-2005, 2006, 2007, 2008 CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO This file is part of CACAO. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef _METHOD_H #define _METHOD_H /* forward typedefs ***********************************************************/ typedef struct methodinfo methodinfo; typedef struct raw_exception_entry raw_exception_entry; typedef struct lineinfo lineinfo; typedef struct localvarinfo localvarinfo; typedef struct method_assumption method_assumption; typedef struct method_worklist method_worklist; typedef struct codeinfo codeinfo; #include "config.h" #include "vm/types.h" #include "threads/mutex.hpp" #include "vm/breakpoint.hpp" #include "vm/jit/builtin.hpp" #include "vm/descriptor.hpp" #include "vm/global.h" #include "vm/linker.hpp" #include "vm/loader.hpp" #include "vm/references.h" #if defined(ENABLE_JAVASE) # include "vm/stackmap.h" #endif #include "vm/utf8.h" #if defined(ENABLE_REPLACEMENT) /* Initial value for the hit countdown field of each method. */ #define METHOD_INITIAL_HIT_COUNTDOWN 1000 #endif /* methodinfo *****************************************************************/ struct methodinfo { /* method structure */ Mutex *mutex; /* we need this in jit's locking */ s4 flags; /* ACC flags */ utf *name; /* name of method */ utf *descriptor; /* JavaVM descriptor string of method */ #if defined(ENABLE_JAVASE) utf *signature; /* Signature attribute */ stack_map_t *stack_map; /* StackMapTable attribute */ #endif methoddesc *parseddesc; /* parsed descriptor */ classinfo *clazz; /* class, the method belongs to */ s4 vftblindex; /* index of method in virtual function */ /* table (if it is a virtual method) */ s4 maxstack; /* maximum stack depth of method */ s4 maxlocals; /* maximum number of local variables */ s4 jcodelength; /* length of JavaVM code */ u1 *jcode; /* pointer to JavaVM code */ s4 rawexceptiontablelength; /* exceptiontable length */ raw_exception_entry *rawexceptiontable; /* the exceptiontable */ u2 thrownexceptionscount; /* number of exceptions attribute */ classref_or_classinfo *thrownexceptions; /* except. a method may throw */ u2 linenumbercount; /* number of linenumber attributes */ lineinfo *linenumbers; /* array of lineinfo items */ #if defined(ENABLE_JAVASE) && defined(ENABLE_JVMTI) uint16_t localvarcount; /* number of local variable attributes */ localvarinfo* localvars; /* array of localvarinfo items */ #endif u1 *stubroutine; /* stub for compiling or calling natives */ codeinfo *code; /* current code of this method */ #if defined(ENABLE_LSRA) s4 maxlifetimes; /* helper for lsra */ #endif methodinfo *overwrites; /* method that is directly overwritten */ method_assumption *assumptions; /* list of assumptions about this method */ BreakpointTable* breakpoints; /* breakpoints in this method */ #if defined(ENABLE_REPLACEMENT) s4 hitcountdown; /* decreased for each hit */ #endif #if defined(ENABLE_DEBUG_FILTER) u1 filtermatches; /* flags indicating which filters the method matches */ #endif #if defined(ENABLE_ESCAPE) u1 *paramescape; #endif }; /* method_assumption *********************************************************** This struct is used for registering assumptions about methods. *******************************************************************************/ struct method_assumption { method_assumption *next; methodinfo *context; }; /* method_worklist ************************************************************* List node used for method worklists. *******************************************************************************/ struct method_worklist { method_worklist *next; methodinfo *m; }; /* raw_exception_entry ********************************************************/ /* exception table entry read by the loader */ struct raw_exception_entry { /* exceptiontable entry in a method */ classref_or_classinfo catchtype; /* catchtype of exc. (0 == catchall) */ u2 startpc; /* start pc of guarded area (inclusive) */ u2 endpc; /* end pc of guarded area (exklusive) */ u2 handlerpc; /* pc of exception handler */ }; /* lineinfo *******************************************************************/ struct lineinfo { u2 start_pc; u2 line_number; }; /* localvarinfo ***************************************************************/ struct localvarinfo { uint16_t start_pc; uint16_t length; utf* name; utf* descriptor; uint16_t index; }; /* global variables ***********************************************************/ extern methodinfo *method_java_lang_reflect_Method_invoke; #ifdef __cplusplus extern "C" { #endif /* inline functions ***********************************************************/ inline static bool method_is_builtin(methodinfo* m) { return m->flags & ACC_METHOD_BUILTIN; } /* function prototypes ********************************************************/ void method_init(void); bool method_load(classbuffer *cb, methodinfo *m, descriptor_pool *descpool); void method_free(methodinfo *m); bool method_canoverwrite(methodinfo *m, methodinfo *old); methodinfo *method_new_builtin(builtintable_entry *bte); methodinfo *method_vftbl_lookup(vftbl_t *vftbl, methodinfo* m); int32_t method_get_parametercount(methodinfo *m); java_handle_objectarray_t *method_get_parametertypearray(methodinfo *m); java_handle_objectarray_t *method_get_exceptionarray(methodinfo *m); classinfo *method_returntype_get(methodinfo *m); void method_add_assumption_monomorphic(methodinfo *m, methodinfo *caller); void method_break_assumption_monomorphic(methodinfo *m, method_worklist **wl); s4 method_count_implementations(methodinfo *m, classinfo *c, methodinfo **found); java_handle_bytearray_t *method_get_annotations(methodinfo *m); java_handle_bytearray_t *method_get_parameterannotations(methodinfo *m); java_handle_bytearray_t *method_get_annotationdefault(methodinfo *m); #if !defined(NDEBUG) void method_printflags(methodinfo *m); void method_print(methodinfo *m); void method_println(methodinfo *m); void method_methodref_print(constant_FMIref *mr); void method_methodref_println(constant_FMIref *mr); #endif #ifdef __cplusplus } #endif #endif /* _METHOD_H */ /* * These are local overrides for various environment variables in Emacs. * Please do not remove this and leave it at the end of the file, where * Emacs will automagically detect them. * --------------------------------------------------------------------- * Local variables: * mode: c++ * indent-tabs-mode: t * c-basic-offset: 4 * tab-width: 4 * End: * vim:noexpandtab:sw=4:ts=4: */