1 /* src/vm/jit/patcher-common.h - 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_H
27 #define _PATCHER_COMMON_H
29 /* forward typedefs ***********************************************************/
34 #include "toolbox/list.h"
36 #include "vm/global.h"
38 #include "vm/jit/jit.h"
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 ********************************************************/
65 void patcher_list_create(codeinfo *code);
66 void patcher_list_reset(codeinfo *code);
67 void patcher_list_free(codeinfo *code);
69 void patcher_add_patch_ref(jitdata *jd, functionptr patcher, void* ref, s4 disp);
71 void patcher_resolve(jitdata* jd);
73 bool patcher_is_patched(patchref_t* pr);
74 bool patcher_is_patched_at(void* pc);
77 bool patcher_is_valid_trap_instruction_at(void* pc);
79 java_handle_t *patcher_handler(u1 *pc);
82 /* empty patcher (just patches back original mcode) ***************************/
84 void patcher_patch_code(patchref_t *pr);
87 /* patcher prototypes and macros **********************************************/
89 /* new patcher functions */
91 bool patcher_resolve_class(patchref_t *pr);
92 #define PATCHER_resolve_class (functionptr) patcher_resolve_class
94 bool patcher_initialize_class(patchref_t *pr);
95 #define PATCHER_initialize_class (functionptr) patcher_initialize_class
97 bool patcher_resolve_classref_to_classinfo(patchref_t *pr);
98 #define PATCHER_resolve_classref_to_classinfo (functionptr) patcher_resolve_classref_to_classinfo
100 bool patcher_resolve_classref_to_vftbl(patchref_t *pr);
101 #define PATCHER_resolve_classref_to_vftbl (functionptr) patcher_resolve_classref_to_vftbl
103 bool patcher_resolve_classref_to_index(patchref_t *pr);
104 #define PATCHER_resolve_classref_to_index (functionptr) patcher_resolve_classref_to_index
106 bool patcher_resolve_classref_to_flags(patchref_t *pr);
107 #define PATCHER_resolve_classref_to_flags (functionptr) patcher_resolve_classref_to_flags
109 bool patcher_resolve_native_function(patchref_t *pr);
110 #define PATCHER_resolve_native_function (functionptr) patcher_resolve_native_function
112 /* old patcher functions */
114 bool patcher_get_putstatic(patchref_t *pr);
115 #define PATCHER_get_putstatic (functionptr) patcher_get_putstatic
117 #if defined(__I386__)
119 bool patcher_getfield(patchref_t *pr);
120 #define PATCHER_getfield (functionptr) patcher_getfield
122 bool patcher_putfield(patchref_t *pr);
123 #define PATCHER_putfield (functionptr) patcher_putfield
127 bool patcher_get_putfield(patchref_t *pr);
128 #define PATCHER_get_putfield (functionptr) patcher_get_putfield
130 #endif /* defined(__I386__) */
132 #if defined(__I386__) || defined(__X86_64__)
134 bool patcher_putfieldconst(patchref_t *pr);
135 #define PATCHER_putfieldconst (functionptr) patcher_putfieldconst
137 #endif /* defined(__I386__) || defined(__X86_64__) */
139 bool patcher_invokestatic_special(patchref_t *pr);
140 #define PATCHER_invokestatic_special (functionptr) patcher_invokestatic_special
142 bool patcher_invokevirtual(patchref_t *pr);
143 #define PATCHER_invokevirtual (functionptr) patcher_invokevirtual
145 bool patcher_invokeinterface(patchref_t *pr);
146 #define PATCHER_invokeinterface (functionptr) patcher_invokeinterface
148 #if defined(__ALPHA__) || defined(__I386__) || defined(__MIPS__) || defined(__POWERPC__) || defined(__POWERPC64__) || defined(__S390__) || defined(__X86_64__) || defined(__M68K__)
150 bool patcher_checkcast_interface(patchref_t *pr);
151 #define PATCHER_checkcast_interface (functionptr) patcher_checkcast_interface
153 bool patcher_instanceof_interface(patchref_t *pr);
154 #define PATCHER_instanceof_interface (functionptr) patcher_instanceof_interface
156 #endif /* defined(__ALPHA__) || defined(__I386__) || defined(__MIPS__) || defined(__POWERPC__) || defined(__POWERPC64__) || defined(__S390__) || defined(__X86_64__) || defined(__M68K__) */
158 #if defined(__S390__)
160 bool patcher_checkcast_instanceof_interface(patchref_t *pr);
161 #define PATCHER_checkcast_instanceof_interface (functionptr) patcher_checkcast_instanceof_interface
163 #endif /* defined(__S390__) */
165 #if defined(__I386__)
167 bool patcher_aconst(patchref_t *pr);
168 #define PATCHER_aconst (functionptr) patcher_aconst
170 bool patcher_builtin_multianewarray(patchref_t *pr);
171 #define PATCHER_builtin_multianewarray (functionptr) patcher_builtin_multianewarray
173 bool patcher_builtin_arraycheckcast(patchref_t *pr);
174 #define PATCHER_builtin_arraycheckcast (functionptr) patcher_builtin_arraycheckcast
176 bool patcher_checkcast_instanceof_flags(patchref_t *pr);
177 #define PATCHER_checkcast_instanceof_flags (functionptr) patcher_checkcast_instanceof_flags
179 bool patcher_checkcast_class(patchref_t *pr);
180 #define PATCHER_checkcast_class (functionptr) patcher_checkcast_class
182 bool patcher_instanceof_class(patchref_t *pr);
183 #define PATCHER_instanceof_class (functionptr) patcher_instanceof_class
185 #endif /* defined(__I386__) */
188 #endif /* _PATCHER_COMMON_H */
192 * These are local overrides for various environment variables in Emacs.
193 * Please do not remove this and leave it at the end of the file, where
194 * Emacs will automagically detect them.
195 * ---------------------------------------------------------------------
198 * indent-tabs-mode: t
202 * vim:noexpandtab:sw=4:ts=4: