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 ***********************************************************/
31 typedef struct cachedref_t cachedref_t;
32 typedef struct patchref_t patchref_t;
37 #include "toolbox/list.hpp"
39 #include "vm/global.h"
41 #include "vm/jit/jit.hpp"
43 #if defined (ENABLE_JITCACHE)
47 /* patchref_t ******************************************************************
49 A patcher reference contains information about a code position
50 which needs additional code patching during runtime.
52 *******************************************************************************/
55 ptrint mpc; /* absolute position in code segment */
56 ptrint datap; /* absolute position in data segment */
57 s4 disp; /* displacement of ref in the data segment */
58 functionptr patcher; /* patcher function to call */
59 void* ref; /* reference passed */
60 uint32_t mcode; /* machine code to be patched back in */
61 bool done; /* XXX preliminary: patch already applied? */
62 #if defined (ENABLE_JITCACHE)
63 cachedref_t *attached_ref;
64 /* cached reference which must be resolved *
65 * patcher has been run. */
70 /* macros *********************************************************************/
73 /* function prototypes ********************************************************/
79 void patcher_list_create(codeinfo *code);
80 void patcher_list_reset(codeinfo *code);
81 void patcher_list_free(codeinfo *code);
83 void patcher_add_patch_ref(jitdata *jd, functionptr patcher, void* ref, s4 disp);
85 void patcher_resolve(jitdata* jd);
87 bool patcher_is_patched(patchref_t* pr);
88 bool patcher_is_patched_at(void* pc);
91 bool patcher_is_valid_trap_instruction_at(void* pc);
93 java_handle_t *patcher_handler(u1 *pc);
96 /* empty patcher (just patches back original mcode) ***************************/
98 void patcher_patch_code(patchref_t *pr);
101 /* patcher prototypes and macros **********************************************/
103 /* new patcher functions */
105 bool patcher_resolve_class(patchref_t *pr);
106 #define PATCHER_resolve_class (functionptr) patcher_resolve_class
108 bool patcher_initialize_class(patchref_t *pr);
109 #define PATCHER_initialize_class (functionptr) patcher_initialize_class
111 bool patcher_resolve_classref_to_classinfo(patchref_t *pr);
112 #define PATCHER_resolve_classref_to_classinfo (functionptr) patcher_resolve_classref_to_classinfo
114 bool patcher_resolve_classref_to_vftbl(patchref_t *pr);
115 #define PATCHER_resolve_classref_to_vftbl (functionptr) patcher_resolve_classref_to_vftbl
117 bool patcher_resolve_classref_to_index(patchref_t *pr);
118 #define PATCHER_resolve_classref_to_index (functionptr) patcher_resolve_classref_to_index
120 bool patcher_resolve_classref_to_flags(patchref_t *pr);
121 #define PATCHER_resolve_classref_to_flags (functionptr) patcher_resolve_classref_to_flags
123 bool patcher_resolve_native_function(patchref_t *pr);
124 #define PATCHER_resolve_native_function (functionptr) patcher_resolve_native_function
126 /* old patcher functions */
128 bool patcher_get_putstatic(patchref_t *pr);
129 #define PATCHER_get_putstatic (functionptr) patcher_get_putstatic
131 #if defined(__I386__)
133 bool patcher_getfield(patchref_t *pr);
134 #define PATCHER_getfield (functionptr) patcher_getfield
136 bool patcher_putfield(patchref_t *pr);
137 #define PATCHER_putfield (functionptr) patcher_putfield
141 bool patcher_get_putfield(patchref_t *pr);
142 #define PATCHER_get_putfield (functionptr) patcher_get_putfield
144 #endif /* defined(__I386__) */
146 #if defined(__I386__) || defined(__X86_64__)
148 bool patcher_putfieldconst(patchref_t *pr);
149 #define PATCHER_putfieldconst (functionptr) patcher_putfieldconst
151 #endif /* defined(__I386__) || defined(__X86_64__) */
153 bool patcher_invokestatic_special(patchref_t *pr);
154 #define PATCHER_invokestatic_special (functionptr) patcher_invokestatic_special
156 bool patcher_invokevirtual(patchref_t *pr);
157 #define PATCHER_invokevirtual (functionptr) patcher_invokevirtual
159 bool patcher_invokeinterface(patchref_t *pr);
160 #define PATCHER_invokeinterface (functionptr) patcher_invokeinterface
162 #if defined(__ALPHA__) || defined(__I386__) || defined(__MIPS__) || defined(__POWERPC__) || defined(__POWERPC64__) || defined(__S390__) || defined(__X86_64__) || defined(__M68K__)
164 bool patcher_checkcast_interface(patchref_t *pr);
165 #define PATCHER_checkcast_interface (functionptr) patcher_checkcast_interface
167 bool patcher_instanceof_interface(patchref_t *pr);
168 #define PATCHER_instanceof_interface (functionptr) patcher_instanceof_interface
170 #endif /* defined(__ALPHA__) || defined(__I386__) || defined(__MIPS__) || defined(__POWERPC__) || defined(__POWERPC64__) || defined(__S390__) || defined(__X86_64__) || defined(__M68K__) */
172 #if defined(__S390__)
174 bool patcher_checkcast_instanceof_interface(patchref_t *pr);
175 #define PATCHER_checkcast_instanceof_interface (functionptr) patcher_checkcast_instanceof_interface
177 #endif /* defined(__S390__) */
179 #if defined(__I386__)
181 bool patcher_aconst(patchref_t *pr);
182 #define PATCHER_aconst (functionptr) patcher_aconst
184 bool patcher_builtin_multianewarray(patchref_t *pr);
185 #define PATCHER_builtin_multianewarray (functionptr) patcher_builtin_multianewarray
187 bool patcher_builtin_arraycheckcast(patchref_t *pr);
188 #define PATCHER_builtin_arraycheckcast (functionptr) patcher_builtin_arraycheckcast
190 bool patcher_checkcast_instanceof_flags(patchref_t *pr);
191 #define PATCHER_checkcast_instanceof_flags (functionptr) patcher_checkcast_instanceof_flags
193 bool patcher_checkcast_class(patchref_t *pr);
194 #define PATCHER_checkcast_class (functionptr) patcher_checkcast_class
196 bool patcher_instanceof_class(patchref_t *pr);
197 #define PATCHER_instanceof_class (functionptr) patcher_instanceof_class
199 #endif /* defined(__I386__) */
201 #if defined (__ARM__)
202 void patch_md(s4 md_patch, ptrint dest, void* ref);
203 #endif /* defined(__ARM__) */
209 #endif // _PATCHER_COMMON_HPP
213 * These are local overrides for various environment variables in Emacs.
214 * Please do not remove this and leave it at the end of the file, where
215 * Emacs will automagically detect them.
216 * ---------------------------------------------------------------------
219 * indent-tabs-mode: t
223 * vim:noexpandtab:sw=4:ts=4: