1 /* src/vm/jit/patcher-common.hpp - architecture independent code patching stuff
3 Copyright (C) 2007, 2008, 2009
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);
75 void patcher_list_show(codeinfo *code);
78 void patcher_add_patch_ref(jitdata *jd, functionptr patcher, void* ref, s4 disp);
80 void patcher_resolve(jitdata* jd);
82 bool patcher_is_patched(patchref_t* pr);
83 bool patcher_is_patched_at(void* pc);
86 bool patcher_is_valid_trap_instruction_at(void* pc);
88 java_handle_t *patcher_handler(u1 *pc);
91 /* empty patcher (just patches back original mcode) ***************************/
93 void patcher_patch_code(patchref_t *pr);
96 /* patcher prototypes and macros **********************************************/
98 /* new patcher functions */
100 bool patcher_resolve_class(patchref_t *pr);
101 #define PATCHER_resolve_class (functionptr) patcher_resolve_class
103 bool patcher_initialize_class(patchref_t *pr);
104 #define PATCHER_initialize_class (functionptr) patcher_initialize_class
106 bool patcher_resolve_classref_to_classinfo(patchref_t *pr);
107 #define PATCHER_resolve_classref_to_classinfo (functionptr) patcher_resolve_classref_to_classinfo
109 bool patcher_resolve_classref_to_vftbl(patchref_t *pr);
110 #define PATCHER_resolve_classref_to_vftbl (functionptr) patcher_resolve_classref_to_vftbl
112 bool patcher_resolve_classref_to_index(patchref_t *pr);
113 #define PATCHER_resolve_classref_to_index (functionptr) patcher_resolve_classref_to_index
115 bool patcher_resolve_classref_to_flags(patchref_t *pr);
116 #define PATCHER_resolve_classref_to_flags (functionptr) patcher_resolve_classref_to_flags
118 bool patcher_resolve_native_function(patchref_t *pr);
119 #define PATCHER_resolve_native_function (functionptr) patcher_resolve_native_function
121 bool patcher_breakpoint(patchref_t *pr);
122 #define PATCHER_breakpoint (functionptr) patcher_breakpoint
124 /* old patcher functions */
126 bool patcher_get_putstatic(patchref_t *pr);
127 #define PATCHER_get_putstatic (functionptr) patcher_get_putstatic
129 #if defined(__I386__)
131 bool patcher_getfield(patchref_t *pr);
132 #define PATCHER_getfield (functionptr) patcher_getfield
134 bool patcher_putfield(patchref_t *pr);
135 #define PATCHER_putfield (functionptr) patcher_putfield
139 bool patcher_get_putfield(patchref_t *pr);
140 #define PATCHER_get_putfield (functionptr) patcher_get_putfield
142 #endif /* defined(__I386__) */
144 #if defined(__I386__) || defined(__X86_64__)
146 bool patcher_putfieldconst(patchref_t *pr);
147 #define PATCHER_putfieldconst (functionptr) patcher_putfieldconst
149 #endif /* defined(__I386__) || defined(__X86_64__) */
151 bool patcher_invokestatic_special(patchref_t *pr);
152 #define PATCHER_invokestatic_special (functionptr) patcher_invokestatic_special
154 bool patcher_invokevirtual(patchref_t *pr);
155 #define PATCHER_invokevirtual (functionptr) patcher_invokevirtual
157 bool patcher_invokeinterface(patchref_t *pr);
158 #define PATCHER_invokeinterface (functionptr) patcher_invokeinterface
160 #if defined(__ALPHA__) || defined(__I386__) || defined(__MIPS__) || defined(__POWERPC__) || defined(__POWERPC64__) || defined(__S390__) || defined(__X86_64__) || defined(__M68K__)
162 bool patcher_checkcast_interface(patchref_t *pr);
163 #define PATCHER_checkcast_interface (functionptr) patcher_checkcast_interface
165 bool patcher_instanceof_interface(patchref_t *pr);
166 #define PATCHER_instanceof_interface (functionptr) patcher_instanceof_interface
168 #endif /* defined(__ALPHA__) || defined(__I386__) || defined(__MIPS__) || defined(__POWERPC__) || defined(__POWERPC64__) || defined(__S390__) || defined(__X86_64__) || defined(__M68K__) */
170 #if defined(__S390__)
172 bool patcher_checkcast_instanceof_interface(patchref_t *pr);
173 #define PATCHER_checkcast_instanceof_interface (functionptr) patcher_checkcast_instanceof_interface
175 #endif /* defined(__S390__) */
177 #if defined(__I386__)
179 bool patcher_aconst(patchref_t *pr);
180 #define PATCHER_aconst (functionptr) patcher_aconst
182 bool patcher_builtin_multianewarray(patchref_t *pr);
183 #define PATCHER_builtin_multianewarray (functionptr) patcher_builtin_multianewarray
185 bool patcher_builtin_arraycheckcast(patchref_t *pr);
186 #define PATCHER_builtin_arraycheckcast (functionptr) patcher_builtin_arraycheckcast
188 bool patcher_checkcast_instanceof_flags(patchref_t *pr);
189 #define PATCHER_checkcast_instanceof_flags (functionptr) patcher_checkcast_instanceof_flags
191 bool patcher_checkcast_class(patchref_t *pr);
192 #define PATCHER_checkcast_class (functionptr) patcher_checkcast_class
194 bool patcher_instanceof_class(patchref_t *pr);
195 #define PATCHER_instanceof_class (functionptr) patcher_instanceof_class
197 #endif /* defined(__I386__) */
203 #endif // _PATCHER_COMMON_HPP
207 * These are local overrides for various environment variables in Emacs.
208 * Please do not remove this and leave it at the end of the file, where
209 * Emacs will automagically detect them.
210 * ---------------------------------------------------------------------
213 * indent-tabs-mode: t
217 * vim:noexpandtab:sw=4:ts=4: