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 patchref_t patchref_t;
36 #include "toolbox/list.hpp"
38 #include "vm/global.h"
40 #include "vm/jit/jit.hpp"
43 /* patchref_t ******************************************************************
45 A patcher reference contains information about a code position
46 which needs additional code patching during runtime.
48 *******************************************************************************/
51 ptrint mpc; /* absolute position in code segment */
52 ptrint datap; /* absolute position in data segment */
53 s4 disp; /* displacement of ref in the data segment */
54 functionptr patcher; /* patcher function to call */
55 void* ref; /* reference passed */
56 uint32_t mcode; /* machine code to be patched back in */
57 bool done; /* XXX preliminary: patch already applied? */
61 /* macros *********************************************************************/
64 /* function prototypes ********************************************************/
70 void patcher_list_create(codeinfo *code);
71 void patcher_list_reset(codeinfo *code);
72 void patcher_list_free(codeinfo *code);
74 void patcher_add_patch_ref(jitdata *jd, functionptr patcher, void* ref, s4 disp);
76 void patcher_resolve(jitdata* jd);
78 bool patcher_is_patched(patchref_t* pr);
79 bool patcher_is_patched_at(void* pc);
82 bool patcher_is_valid_trap_instruction_at(void* pc);
84 java_handle_t *patcher_handler(u1 *pc);
87 /* empty patcher (just patches back original mcode) ***************************/
89 void patcher_patch_code(patchref_t *pr);
92 /* patcher prototypes and macros **********************************************/
94 /* new patcher functions */
96 bool patcher_resolve_class(patchref_t *pr);
97 #define PATCHER_resolve_class (functionptr) patcher_resolve_class
99 bool patcher_initialize_class(patchref_t *pr);
100 #define PATCHER_initialize_class (functionptr) patcher_initialize_class
102 bool patcher_resolve_classref_to_classinfo(patchref_t *pr);
103 #define PATCHER_resolve_classref_to_classinfo (functionptr) patcher_resolve_classref_to_classinfo
105 bool patcher_resolve_classref_to_vftbl(patchref_t *pr);
106 #define PATCHER_resolve_classref_to_vftbl (functionptr) patcher_resolve_classref_to_vftbl
108 bool patcher_resolve_classref_to_index(patchref_t *pr);
109 #define PATCHER_resolve_classref_to_index (functionptr) patcher_resolve_classref_to_index
111 bool patcher_resolve_classref_to_flags(patchref_t *pr);
112 #define PATCHER_resolve_classref_to_flags (functionptr) patcher_resolve_classref_to_flags
114 bool patcher_resolve_native_function(patchref_t *pr);
115 #define PATCHER_resolve_native_function (functionptr) patcher_resolve_native_function
117 /* old patcher functions */
119 bool patcher_get_putstatic(patchref_t *pr);
120 #define PATCHER_get_putstatic (functionptr) patcher_get_putstatic
122 #if defined(__I386__)
124 bool patcher_getfield(patchref_t *pr);
125 #define PATCHER_getfield (functionptr) patcher_getfield
127 bool patcher_putfield(patchref_t *pr);
128 #define PATCHER_putfield (functionptr) patcher_putfield
132 bool patcher_get_putfield(patchref_t *pr);
133 #define PATCHER_get_putfield (functionptr) patcher_get_putfield
135 #endif /* defined(__I386__) */
137 #if defined(__I386__) || defined(__X86_64__)
139 bool patcher_putfieldconst(patchref_t *pr);
140 #define PATCHER_putfieldconst (functionptr) patcher_putfieldconst
142 #endif /* defined(__I386__) || defined(__X86_64__) */
144 bool patcher_invokestatic_special(patchref_t *pr);
145 #define PATCHER_invokestatic_special (functionptr) patcher_invokestatic_special
147 bool patcher_invokevirtual(patchref_t *pr);
148 #define PATCHER_invokevirtual (functionptr) patcher_invokevirtual
150 bool patcher_invokeinterface(patchref_t *pr);
151 #define PATCHER_invokeinterface (functionptr) patcher_invokeinterface
153 #if defined(__ALPHA__) || defined(__I386__) || defined(__MIPS__) || defined(__POWERPC__) || defined(__POWERPC64__) || defined(__S390__) || defined(__X86_64__) || defined(__M68K__)
155 bool patcher_checkcast_interface(patchref_t *pr);
156 #define PATCHER_checkcast_interface (functionptr) patcher_checkcast_interface
158 bool patcher_instanceof_interface(patchref_t *pr);
159 #define PATCHER_instanceof_interface (functionptr) patcher_instanceof_interface
161 #endif /* defined(__ALPHA__) || defined(__I386__) || defined(__MIPS__) || defined(__POWERPC__) || defined(__POWERPC64__) || defined(__S390__) || defined(__X86_64__) || defined(__M68K__) */
163 #if defined(__S390__)
165 bool patcher_checkcast_instanceof_interface(patchref_t *pr);
166 #define PATCHER_checkcast_instanceof_interface (functionptr) patcher_checkcast_instanceof_interface
168 #endif /* defined(__S390__) */
170 #if defined(__I386__)
172 bool patcher_aconst(patchref_t *pr);
173 #define PATCHER_aconst (functionptr) patcher_aconst
175 bool patcher_builtin_multianewarray(patchref_t *pr);
176 #define PATCHER_builtin_multianewarray (functionptr) patcher_builtin_multianewarray
178 bool patcher_builtin_arraycheckcast(patchref_t *pr);
179 #define PATCHER_builtin_arraycheckcast (functionptr) patcher_builtin_arraycheckcast
181 bool patcher_checkcast_instanceof_flags(patchref_t *pr);
182 #define PATCHER_checkcast_instanceof_flags (functionptr) patcher_checkcast_instanceof_flags
184 bool patcher_checkcast_class(patchref_t *pr);
185 #define PATCHER_checkcast_class (functionptr) patcher_checkcast_class
187 bool patcher_instanceof_class(patchref_t *pr);
188 #define PATCHER_instanceof_class (functionptr) patcher_instanceof_class
190 #endif /* defined(__I386__) */
196 #endif // _PATCHER_COMMON_HPP
200 * These are local overrides for various environment variables in Emacs.
201 * Please do not remove this and leave it at the end of the file, where
202 * Emacs will automagically detect them.
203 * ---------------------------------------------------------------------
206 * indent-tabs-mode: t
210 * vim:noexpandtab:sw=4:ts=4: