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 uintptr_t mpc; /* absolute position in code segment */
52 uintptr_t datap; /* absolute position in data segment */
53 int32_t disp; /* displacement of ref in the data segment */
54 int32_t disp_mb; /* auxiliary code displacement (for membar) */
55 functionptr patcher; /* patcher function to call */
56 void* ref; /* reference passed */
57 uint32_t mcode; /* machine code to be patched back in */
58 bool done; /* XXX preliminary: patch already applied? */
62 /* macros *********************************************************************/
65 /* function prototypes ********************************************************/
71 void patcher_list_create(codeinfo *code);
72 void patcher_list_reset(codeinfo *code);
73 void patcher_list_free(codeinfo *code);
76 void patcher_list_show(codeinfo *code);
79 patchref_t *patcher_add_patch_ref(jitdata *jd, functionptr patcher, void* ref, s4 disp);
81 void patcher_resolve(jitdata* jd);
83 bool patcher_is_patched(patchref_t* pr);
84 bool patcher_is_patched_at(void* pc);
87 bool patcher_is_valid_trap_instruction_at(void* pc);
89 bool patcher_handler(u1 *pc);
92 /* empty patcher (just patches back original mcode) ***************************/
94 void patcher_patch_code(patchref_t *pr);
97 /* patcher prototypes and macros **********************************************/
99 /* new patcher functions */
101 bool patcher_resolve_class(patchref_t *pr);
102 #define PATCHER_resolve_class (functionptr) patcher_resolve_class
104 bool patcher_initialize_class(patchref_t *pr);
105 #define PATCHER_initialize_class (functionptr) patcher_initialize_class
107 bool patcher_resolve_classref_to_classinfo(patchref_t *pr);
108 #define PATCHER_resolve_classref_to_classinfo (functionptr) patcher_resolve_classref_to_classinfo
110 bool patcher_resolve_classref_to_vftbl(patchref_t *pr);
111 #define PATCHER_resolve_classref_to_vftbl (functionptr) patcher_resolve_classref_to_vftbl
113 bool patcher_resolve_classref_to_index(patchref_t *pr);
114 #define PATCHER_resolve_classref_to_index (functionptr) patcher_resolve_classref_to_index
116 bool patcher_resolve_classref_to_flags(patchref_t *pr);
117 #define PATCHER_resolve_classref_to_flags (functionptr) patcher_resolve_classref_to_flags
119 bool patcher_resolve_native_function(patchref_t *pr);
120 #define PATCHER_resolve_native_function (functionptr) patcher_resolve_native_function
122 bool patcher_breakpoint(patchref_t *pr);
123 #define PATCHER_breakpoint (functionptr) patcher_breakpoint
125 /* old patcher functions */
127 bool patcher_get_putstatic(patchref_t *pr);
128 #define PATCHER_get_putstatic (functionptr) patcher_get_putstatic
130 #if defined(__I386__)
132 bool patcher_getfield(patchref_t *pr);
133 #define PATCHER_getfield (functionptr) patcher_getfield
135 bool patcher_putfield(patchref_t *pr);
136 #define PATCHER_putfield (functionptr) patcher_putfield
140 bool patcher_get_putfield(patchref_t *pr);
141 #define PATCHER_get_putfield (functionptr) patcher_get_putfield
143 #endif /* defined(__I386__) */
145 #if defined(__I386__) || defined(__X86_64__)
147 bool patcher_putfieldconst(patchref_t *pr);
148 #define PATCHER_putfieldconst (functionptr) patcher_putfieldconst
150 #endif /* defined(__I386__) || defined(__X86_64__) */
152 bool patcher_invokestatic_special(patchref_t *pr);
153 #define PATCHER_invokestatic_special (functionptr) patcher_invokestatic_special
155 bool patcher_invokevirtual(patchref_t *pr);
156 #define PATCHER_invokevirtual (functionptr) patcher_invokevirtual
158 bool patcher_invokeinterface(patchref_t *pr);
159 #define PATCHER_invokeinterface (functionptr) patcher_invokeinterface
161 #if defined(__ALPHA__) || defined(__I386__) || defined(__MIPS__) || defined(__POWERPC__) || defined(__POWERPC64__) || defined(__S390__) || defined(__X86_64__) || defined(__M68K__)
163 bool patcher_checkcast_interface(patchref_t *pr);
164 #define PATCHER_checkcast_interface (functionptr) patcher_checkcast_interface
166 bool patcher_instanceof_interface(patchref_t *pr);
167 #define PATCHER_instanceof_interface (functionptr) patcher_instanceof_interface
169 #endif /* defined(__ALPHA__) || defined(__I386__) || defined(__MIPS__) || defined(__POWERPC__) || defined(__POWERPC64__) || defined(__S390__) || defined(__X86_64__) || defined(__M68K__) */
171 #if defined(__S390__)
173 bool patcher_checkcast_instanceof_interface(patchref_t *pr);
174 #define PATCHER_checkcast_instanceof_interface (functionptr) patcher_checkcast_instanceof_interface
176 #endif /* defined(__S390__) */
178 #if defined(__I386__)
180 bool patcher_aconst(patchref_t *pr);
181 #define PATCHER_aconst (functionptr) patcher_aconst
183 bool patcher_builtin_multianewarray(patchref_t *pr);
184 #define PATCHER_builtin_multianewarray (functionptr) patcher_builtin_multianewarray
186 bool patcher_builtin_arraycheckcast(patchref_t *pr);
187 #define PATCHER_builtin_arraycheckcast (functionptr) patcher_builtin_arraycheckcast
189 bool patcher_checkcast_instanceof_flags(patchref_t *pr);
190 #define PATCHER_checkcast_instanceof_flags (functionptr) patcher_checkcast_instanceof_flags
192 bool patcher_checkcast_class(patchref_t *pr);
193 #define PATCHER_checkcast_class (functionptr) patcher_checkcast_class
195 bool patcher_instanceof_class(patchref_t *pr);
196 #define PATCHER_instanceof_class (functionptr) patcher_instanceof_class
198 #endif /* defined(__I386__) */
204 #endif // _PATCHER_COMMON_HPP
208 * These are local overrides for various environment variables in Emacs.
209 * Please do not remove this and leave it at the end of the file, where
210 * Emacs will automagically detect them.
211 * ---------------------------------------------------------------------
214 * indent-tabs-mode: t
218 * vim:noexpandtab:sw=4:ts=4: