1 /* src/vm/jit/patcher-common.hpp - architecture independent code patching stuff
3 Copyright (C) 2007, 2008
4 CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
6 This file is part of CACAO.
8 This program is free software; you can redistribute it and/or
9 modify it under the terms of the GNU General Public License as
10 published by the Free Software Foundation; either version 2, or (at
11 your option) any later version.
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
26 #ifndef _PATCHER_COMMON_HPP
27 #define _PATCHER_COMMON_HPP
29 /* forward typedefs ***********************************************************/
34 #include "toolbox/list.h"
36 #include "vm/global.h"
38 #include "vm/jit/jit.hpp"
41 /* patchref_t ******************************************************************
43 A patcher reference contains information about a code position
44 which needs additional code patching during runtime.
46 *******************************************************************************/
48 typedef struct patchref_t {
49 ptrint mpc; /* absolute position in code segment */
50 ptrint datap; /* absolute position in data segment */
51 s4 disp; /* displacement of ref in the data segment */
52 functionptr patcher; /* patcher function to call */
53 void* ref; /* reference passed */
54 uint32_t mcode; /* machine code to be patched back in */
55 bool done; /* XXX preliminary: patch already applied? */
60 /* macros *********************************************************************/
63 /* function prototypes ********************************************************/
69 void patcher_list_create(codeinfo *code);
70 void patcher_list_reset(codeinfo *code);
71 void patcher_list_free(codeinfo *code);
73 void patcher_add_patch_ref(jitdata *jd, functionptr patcher, void* ref, s4 disp);
75 void patcher_resolve(jitdata* jd);
77 bool patcher_is_patched(patchref_t* pr);
78 bool patcher_is_patched_at(void* pc);
81 bool patcher_is_valid_trap_instruction_at(void* pc);
83 java_handle_t *patcher_handler(u1 *pc);
86 /* empty patcher (just patches back original mcode) ***************************/
88 void patcher_patch_code(patchref_t *pr);
91 /* patcher prototypes and macros **********************************************/
93 /* new patcher functions */
95 bool patcher_resolve_class(patchref_t *pr);
96 #define PATCHER_resolve_class (functionptr) patcher_resolve_class
98 bool patcher_initialize_class(patchref_t *pr);
99 #define PATCHER_initialize_class (functionptr) patcher_initialize_class
101 bool patcher_resolve_classref_to_classinfo(patchref_t *pr);
102 #define PATCHER_resolve_classref_to_classinfo (functionptr) patcher_resolve_classref_to_classinfo
104 bool patcher_resolve_classref_to_vftbl(patchref_t *pr);
105 #define PATCHER_resolve_classref_to_vftbl (functionptr) patcher_resolve_classref_to_vftbl
107 bool patcher_resolve_classref_to_index(patchref_t *pr);
108 #define PATCHER_resolve_classref_to_index (functionptr) patcher_resolve_classref_to_index
110 bool patcher_resolve_classref_to_flags(patchref_t *pr);
111 #define PATCHER_resolve_classref_to_flags (functionptr) patcher_resolve_classref_to_flags
113 bool patcher_resolve_native_function(patchref_t *pr);
114 #define PATCHER_resolve_native_function (functionptr) patcher_resolve_native_function
116 /* old patcher functions */
118 bool patcher_get_putstatic(patchref_t *pr);
119 #define PATCHER_get_putstatic (functionptr) patcher_get_putstatic
121 #if defined(__I386__)
123 bool patcher_getfield(patchref_t *pr);
124 #define PATCHER_getfield (functionptr) patcher_getfield
126 bool patcher_putfield(patchref_t *pr);
127 #define PATCHER_putfield (functionptr) patcher_putfield
131 bool patcher_get_putfield(patchref_t *pr);
132 #define PATCHER_get_putfield (functionptr) patcher_get_putfield
134 #endif /* defined(__I386__) */
136 #if defined(__I386__) || defined(__X86_64__)
138 bool patcher_putfieldconst(patchref_t *pr);
139 #define PATCHER_putfieldconst (functionptr) patcher_putfieldconst
141 #endif /* defined(__I386__) || defined(__X86_64__) */
143 bool patcher_invokestatic_special(patchref_t *pr);
144 #define PATCHER_invokestatic_special (functionptr) patcher_invokestatic_special
146 bool patcher_invokevirtual(patchref_t *pr);
147 #define PATCHER_invokevirtual (functionptr) patcher_invokevirtual
149 bool patcher_invokeinterface(patchref_t *pr);
150 #define PATCHER_invokeinterface (functionptr) patcher_invokeinterface
152 #if defined(__ALPHA__) || defined(__I386__) || defined(__MIPS__) || defined(__POWERPC__) || defined(__POWERPC64__) || defined(__S390__) || defined(__X86_64__) || defined(__M68K__)
154 bool patcher_checkcast_interface(patchref_t *pr);
155 #define PATCHER_checkcast_interface (functionptr) patcher_checkcast_interface
157 bool patcher_instanceof_interface(patchref_t *pr);
158 #define PATCHER_instanceof_interface (functionptr) patcher_instanceof_interface
160 #endif /* defined(__ALPHA__) || defined(__I386__) || defined(__MIPS__) || defined(__POWERPC__) || defined(__POWERPC64__) || defined(__S390__) || defined(__X86_64__) || defined(__M68K__) */
162 #if defined(__S390__)
164 bool patcher_checkcast_instanceof_interface(patchref_t *pr);
165 #define PATCHER_checkcast_instanceof_interface (functionptr) patcher_checkcast_instanceof_interface
167 #endif /* defined(__S390__) */
169 #if defined(__I386__)
171 bool patcher_aconst(patchref_t *pr);
172 #define PATCHER_aconst (functionptr) patcher_aconst
174 bool patcher_builtin_multianewarray(patchref_t *pr);
175 #define PATCHER_builtin_multianewarray (functionptr) patcher_builtin_multianewarray
177 bool patcher_builtin_arraycheckcast(patchref_t *pr);
178 #define PATCHER_builtin_arraycheckcast (functionptr) patcher_builtin_arraycheckcast
180 bool patcher_checkcast_instanceof_flags(patchref_t *pr);
181 #define PATCHER_checkcast_instanceof_flags (functionptr) patcher_checkcast_instanceof_flags
183 bool patcher_checkcast_class(patchref_t *pr);
184 #define PATCHER_checkcast_class (functionptr) patcher_checkcast_class
186 bool patcher_instanceof_class(patchref_t *pr);
187 #define PATCHER_instanceof_class (functionptr) patcher_instanceof_class
189 #endif /* defined(__I386__) */
195 #endif // _PATCHER_COMMON_HPP
199 * These are local overrides for various environment variables in Emacs.
200 * Please do not remove this and leave it at the end of the file, where
201 * Emacs will automagically detect them.
202 * ---------------------------------------------------------------------
205 * indent-tabs-mode: t
209 * vim:noexpandtab:sw=4:ts=4: