6 #define OP_STACK_ARGS 2
14 #define OP_LOOKUPSWITCH 512
15 #define OP_NEED_ACTIVATION 1024
16 #define OP_STACK_ARGS2 2048
18 /* 2 = u30 index into multiname
19 m = u30 index into method
20 n = u30 number of params
21 i = u30 index into method info
24 c = u30 index into class
25 s = string (u30 index into strings)
32 {0xa0, "add", "", -2, 1, 0, 0},
33 {0xc5, "add_i", "", -2, 1, 0, 0},
34 {0x86, "astype", "2", -1, 1, 0, 0},
35 {0x87, "astypelate", "", -2, 1, 0, 0},
36 {0xA8, "bitand", "", -2, 1, 0, 0},
37 {0x97, "bitnot", "", -1, 1, 0, 0},
38 {0xa9, "bitor", "", -2, 1, 0, 0},
39 {0xaa, "bitxor", "", -2, 1, 0, 0},
40 {0x41, "call", "n", -2, 1, 0, OP_STACK_ARGS},
41 {0x43, "callmethod", "mn", -1, 1, 0, OP_STACK_ARGS},
42 {0x4c, "callproplex", "2n", -1, 1, 0, OP_STACK_ARGS|OP_STACK_NS},
43 {0x46, "callproperty", "2n", -1, 1, 0, OP_STACK_ARGS|OP_STACK_NS},
44 {0x4f, "callpropvoid", "2n", -1, 0, 0, OP_STACK_ARGS|OP_STACK_NS},
45 {0x44, "callstatic", "in", -1, 1, 0, OP_STACK_ARGS},
46 {0x45, "callsuper", "2n", -1, 1, 0, OP_STACK_ARGS|OP_STACK_NS},
47 {0x4e, "callsupervoid", "2n", -1, 0, 0, OP_STACK_ARGS|OP_STACK_NS},
48 {0x78, "checkfilter", "", -1, 1, 0, 0},
49 {0x80, "coerce", "2", -1, 1, 0, 0},
50 {0x82, "coerce_a", "", -1, 1, 0, 0},
51 {0x85, "coerce_s", "", -1, 1, 0, 0},
52 {0x42, "construct", "n", -1, 1, 0, OP_STACK_ARGS},
53 {0x4a, "constructprop", "2n", -1, 1, 0, OP_STACK_ARGS|OP_STACK_NS},
54 {0x49, "constructsuper", "n", -1, 0, 0, OP_STACK_ARGS},
55 {0x76, "convert_b", "", -1, 1, 0, 0},
56 {0x73, "convert_i", "", -1, 1, 0, 0},
57 {0x75, "convert_d", "", -1, 1, 0, 0},
58 {0x77, "convert_o", "", -1, 1, 0, 0},
59 {0x74, "convert_u", "", -1, 1, 0, 0},
60 {0x70, "convert_s", "", -1, 1, 0, 0},
61 {0xef, "debug", "D", 0, 0, 0, 0},
62 {0xf1, "debugfile", "s", 0, 0, 0, 0},
63 {0xf0, "debugline", "u", 0, 0, 0, 0},
64 {0x94, "declocal", "r", 0, 0, 0, OP_REGISTER},
65 {0xc3, "declocal_i", "r", 0, 0, 0, OP_REGISTER},
66 {0x93, "decrement", "", -1, 1, 0, 0},
67 {0xc1, "decrement_i", "", -1, 1, 0, 0},
68 {0x6a, "deleteproperty", "2", -1, 1, 0, OP_STACK_NS},
69 {0xa3, "divide", "", -2, 1, 0, 0},
70 {0x2a, "dup", "", -1, 2, 0, 0},
71 {0x06, "dxns", "s", 0, 0, 0, OP_SET_DXNS},
72 {0x07, "dxnslate", "", -1, 0, 0, OP_SET_DXNS},
73 {0xab, "equals", "", -2, 1, 0, 0},
74 {0x72, "esc_xattr", "", -1, 1, 0, 0},
75 {0x71, "esc_xelem", "", -1, 1, 0, 0},
76 {0x5e, "findproperty", "2", 0, 1, 0, OP_STACK_NS},
77 {0x5d, "findpropstrict", "2", 0, 1, 0, OP_STACK_NS},
78 {0x59, "getdescendants", "2", -1, 1, 0, OP_STACK_NS},
79 {0x64, "getglobalscope", "", 0, 1, 0, 0},
80 {0x6e, "getglobalslot", "u", 0, 1, 0, 0},
81 {0x60, "getlex", "2", 0, 1, 0, 0}, //multiname may not be runtime
82 {0x62, "getlocal", "r", 0, 1, 0, OP_REGISTER},
83 {0xd0, "getlocal_0", "", 0, 1, 0, OP_REGISTER},
84 {0xd1, "getlocal_1", "", 0, 1, 0, OP_REGISTER},
85 {0xd2, "getlocal_2", "", 0, 1, 0, OP_REGISTER},
86 {0xd3, "getlocal_3", "", 0, 1, 0, OP_REGISTER},
87 {0x66, "getproperty", "2", -1, 1, 0, OP_STACK_NS},
88 {0x65, "getscopeobject", "u", 0, 1, 0, 0}, // u = index into scope stack
89 {0x6c, "getslot", "u", -1, 1, 0, 0},
90 {0x04, "getsuper", "2", -1, 1, 0, OP_STACK_NS},
91 {0xaf, "greaterthan", "", -2, 1, 0, 0},
92 {0xb0, "greaterequals", "", -2, 1, 0, 0},
93 {0x1f, "hasnext", "", -2, 1, 0, 0},
94 {0x32, "hasnext2", "rr", 0, 1, 0, OP_REGISTER},
95 {0x13, "ifeq", "j", -2, 0, 0, OP_BRANCH},
96 {0x12, "iffalse", "j", -1, 0, 0, OP_BRANCH},
97 {0x18, "ifge", "j", -2, 0, 0, OP_BRANCH},
98 {0x17, "ifgt", "j", -2, 0, 0, OP_BRANCH},
99 {0x16, "ifle", "j", -2, 0, 0, OP_BRANCH},
100 {0x15, "iflt", "j", -2, 0, 0, OP_BRANCH},
101 {0x0f, "ifnge", "j", -2, 0, 0, OP_BRANCH},
102 {0x0e, "ifngt", "j", -2, 0, 0, OP_BRANCH},
103 {0x0d, "ifnle", "j", -2, 0, 0, OP_BRANCH},
104 {0x0c, "ifnlt", "j", -2, 0, 0, OP_BRANCH},
105 {0x14, "ifne", "j", -2, 0, 0, OP_BRANCH},
106 {0x19, "ifstricteq", "j", -2, 0, 0, OP_BRANCH},
107 {0x1a, "ifstrictne", "j", -2, 0, 0, OP_BRANCH},
108 {0x11, "iftrue", "j", -1, 0, 0, OP_BRANCH},
109 {0xb4, "in", "", -2, 1, 0, 0},
110 {0x92, "inclocal", "r", 0, 0, 0, OP_REGISTER},
111 {0xc2, "inclocal_i", "r", 0, 0, 0, OP_REGISTER},
112 {0x91, "increment", "", -1, 1, 0, 0},
113 {0xc0, "increment_i", "", -1, 1, 0, 0},
114 {0x68, "initproperty", "2", -2, 0, 0, OP_STACK_NS},
115 {0xb1, "instanceof", "", -2, 1, 0, 0},
116 {0xb2, "istype", "2", -1, 1, 0, 0}, // may not be a runtime multiname
117 {0xb3, "istypelate", "", -2, 1, 0, 0},
118 {0x10, "jump", "j", 0, 0, 0, OP_JUMP},
119 {0x08, "kill", "r", 0, 0, 0, OP_REGISTER},
120 {0x09, "label", "", 0, 0, 0, OP_LABEL},
121 {0xae, "lessequals", "", -2, 1, 0, 0},
122 {0xad, "lessthan", "", -2, 1, 0, 0},
123 {0x1b, "lookupswitch", "S", -1, 0, 0, OP_LOOKUPSWITCH},
124 {0xa5, "lshift", "", -2, 1, 0, 0},
125 {0xa4, "modulo", "", -2, 1, 0, 0},
126 {0xa2, "multiply", "", -2, 1, 0, 0},
127 {0xc7, "multiply_i", "", -2, 1, 0, 0},
128 {0x90, "negate", "", -1, 1, 0, 0},
129 {0xc4, "negate_i", "", -1, 1, 0, 0},
130 {0x57, "newactivation", "", 0, 1, 0, OP_NEED_ACTIVATION},
131 {0x56, "newarray", "n", 0, 1, 0, OP_STACK_ARGS},
132 {0x5a, "newcatch", "u", 0, 1, 0, 0}, //u = index into exception_info
133 #define OP_NEWCLASS 0x58
134 {0x58, "newclass", "c", -1, 1, 0, 0}, //c = index into class_info
135 #define OP_NEWFUNCTION 0x40
136 {0x40, "newfunction", "m", 0, 1, 0, 0}, //i = index into method_info
137 {0x55, "newobject", "n", 0, 1, 0, OP_STACK_ARGS2},
138 {0x1e, "nextname", "", -2, 1, 0, 0},
139 {0x23, "nextvalue", "", -2, 1, 0, 0},
140 {0x02, "nop", "", 0, 0, 0, 0},
141 {0x96, "not", "", -1, 1, 0 ,0},
142 {0x29, "pop", "", -1, 0, 0, 0},
143 {0x1d, "popscope", "", 0, 0,-1, 0},
144 {0x24, "pushbyte", "b", 0, 1, 0, 0},
145 {0x2f, "pushdouble", "f", 0, 1, 0, 0}, //index into floats
146 {0x27, "pushfalse", "", 0, 1, 0, 0},
147 {0x2d, "pushint", "I", 0, 1, 0, 0}, //index into ints
148 {0x31, "pushnamespace", "u", 0, 1, 0, 0}, //index into namespace TODO
149 {0x28, "pushnan", "", 0, 1, 0, 0},
150 {0x20, "pushnull", "", 0, 1, 0, 0},
151 {0x30, "pushscope", "", -1, 0, 1, 0},
152 {0x25, "pushshort", "u", 0, 1, 0, 0},
153 {0x2c, "pushstring", "s", 0, 1, 0, 0},
154 {0x26, "pushtrue", "", 0, 1, 0, 0},
155 {0x2e, "pushuint", "U", 0, 1, 0, 0}, //index into uints
156 {0x21, "pushundefined", "", 0, 1, 0, 0},
157 {0x1c, "pushwith", "", -1, 0, 1, 0},
158 {0x48, "returnvalue", "", -1, 0, 0, OP_RETURN},
159 {0x47, "returnvoid", "", 0, 0, 0, OP_RETURN},
160 {0xa6, "rshift", "", -2, 1, 0, 0},
161 {0x63, "setlocal", "r", -1, 0, 0, OP_REGISTER},
162 {0xd4, "setlocal_0", "", -1, 0, 0, OP_REGISTER},
163 {0xd5, "setlocal_1", "", -1, 0, 0, OP_REGISTER},
164 {0xd6, "setlocal_2", "", -1, 0, 0, OP_REGISTER},
165 {0xd7, "setlocal_3", "", -1, 0, 0, OP_REGISTER},
166 {0x6f, "setglobalslot", "u", -1, 0, 0, 0},
167 {0x61, "setproperty", "2", -2, 0, 0, OP_STACK_NS},
168 {0x6d, "setslot", "u", -2, 0, 0, 0},
169 {0x05, "setsuper", "2", -2, 0, 0, OP_STACK_NS},
170 {0xac, "strictequals", "", -2, 1, 0, 0},
171 {0xa1, "subtract", "", -2, 1, 0, 0},
172 {0xc6, "subtract_i", "", -2, 1, 0, 0},
173 {0x2b, "swap", "", -2, 2, 0, 0},
174 {0x03, "throw", "", -1, 0, 0, OP_THROW},
175 {0x95, "typeof", "", -1, 1, 0, 0},
176 {0xa7, "urshift", "", -2, 1, 0, 0},
179 static U8 op2index[256] = {254};
181 opcode_t* opcode_get(U8 op)
184 if(op2index[0]==254) {
185 memset(op2index, 255, sizeof(op2index));
186 for(t=0;t<sizeof(opcodes)/sizeof(opcodes[0]);t++) {
187 op2index[opcodes[t].opcode] = t;
190 if(op2index[op]!=255)
191 return &opcodes[op2index[op]];
195 static code_t*pos2code(code_t**bytepos, code_t*c, int pos, int len)
202 (pos!=len && !bytepos[pos])) {
203 /* flex likes to generate these. yuck. */
205 opcode_t*op = opcode_get(c->opcode);
206 fprintf(stderr, "Warning: Invalid jump instruction \"%s\" from %d to %d (%d)\n", op->name, c->pos, pos, len);
208 fprintf(stderr, "Warning: Invalid jump to %d (%d)\n", pos, len);
213 //opcode_t*op = opcode_get(c->opcode);
214 //fprintf(stderr, "Warning: jump beyond end of code in instruction %s at position %d\n", op->name, c->pos);
221 code_t* code_atposition(codelookup_t*l, int pos)
223 return pos2code(l->bytepos, 0, pos, l->len);
226 void lookupswitch_print(lookupswitch_t*l)
228 printf("default: %08x\n", l->def);
229 code_list_t*t = l->targets;
231 printf("target: %08x\n", t->code);
236 code_t*code_parse(TAG*tag, int len, abc_file_t*file, pool_t*pool, codelookup_t**codelookup)
241 int end=tag->pos+len;
242 //printf("-->\n");fflush(stdout);
244 code_t**bytepos = rfx_calloc(sizeof(code_t*)*len);
246 while(tag->pos<end) {
247 int codepos = tag->pos-start;
248 U8 opcode = swf_GetU8(tag);
249 opcode_t*op = opcode_get(opcode);
251 fprintf(stderr, "Can't parse opcode %02x\n", opcode);
254 //printf("%s\n", op->name);fflush(stdout);
258 bytepos[codepos] = c;
273 if(*p == 'n') { // number
274 data = (void*)(ptroff_t)swf_GetU30(tag);
275 } else if(*p == '2') { //multiname
276 data = multiname_clone(pool_lookup_multiname(pool, swf_GetU30(tag)));
277 } else if(*p == 'U') { //uint
278 data = (void*)(ptroff_t)pool_lookup_uint(pool, swf_GetU30(tag));
279 } else if(*p == 'I') { //int
280 data = (void*)(ptroff_t)pool_lookup_int(pool, swf_GetU30(tag));
281 } else if(*p == 'f') { //int
282 double*fp = malloc(sizeof(double));
283 *fp = pool_lookup_float(pool, swf_GetU30(tag));
285 } else if(*p == 'm') { //method
286 data = array_getvalue(file->methods, swf_GetU30(tag));
287 } else if(*p == 'c') { //classinfo
288 data = array_getvalue(file->classes, swf_GetU30(tag));
289 } else if(*p == 'i') {
290 data = array_getvalue(file->method_bodies, swf_GetU30(tag));
291 } else if(*p == 'u') { // generic integer
292 data = (void*)(ptroff_t)swf_GetU30(tag);
293 } else if(*p == 'r') { // local register
294 data = (void*)(ptroff_t)swf_GetU30(tag);
295 } else if(*p == 'b') { // byte
296 data = (void*)(ptroff_t)swf_GetU8(tag);
297 } else if(*p == 'j') { // jump
298 int j = swf_GetS24(tag);
299 data = (void*)(ptroff_t)j;
300 } else if(*p == 's') { // string
301 data = strdup((char*)pool_lookup_string(pool, swf_GetU30(tag)));
302 } else if(*p == 'D') { // debug
304 U8 type = swf_GetU8(tag);
306 fprintf(stderr, "Unknown debug type: %02x\n", type);
308 code->data[0] = strdup((char*)pool_lookup_string(pool, swf_GetU30(tag)));
310 code->data[1] = (void*)(ptroff_t)swf_GetU8(tag);
313 } else if(*p == 'S') { // switch statement
314 lookupswitch_t*l = malloc(sizeof(lookupswitch_t));
315 l->def = (code_t*)(ptroff_t)swf_GetS24(tag);
316 l->targets = list_new();
317 int num = swf_GetU30(tag)+1;
320 list_append(l->targets, (code_t*)(ptroff_t)swf_GetS24(tag));
323 printf("Can't parse opcode param type \"%c\" (for op %02x %s).\n", *p, code->opcode, op->name);
327 code->data[pos++] = data;
332 //#define DEBUG_BYTES
336 code_t*c = bytepos[t];
338 opcode_t*op = opcode_get(c->opcode);
339 if(op->flags & (OP_JUMP|OP_BRANCH)) {
340 printf("%5d) %02x %s %d\n", t, tag->data[start+t], op->name, c->data[0]);
342 printf("%5d) %02x %s\n", t, tag->data[start+t], op->name);
345 printf("%5d) %02x\n", t, tag->data[start+t]);
348 //printf("%5d) %02x\n", t, tag->data[start+t]);
353 opcode_t*op = opcode_get(c->opcode);
354 if(op->flags & (OP_JUMP|OP_BRANCH)) {
355 int j = ((int)(ptroff_t)c->data[0]);
356 c->branch = pos2code(bytepos,c,j+4,len);
357 } else if(op->flags & (OP_LOOKUPSWITCH)) {
358 lookupswitch_t*l = (lookupswitch_t*)c->data[0];
360 l->def = pos2code(bytepos,c,(ptroff_t)l->def+offset,len);
361 code_list_t*t=l->targets;
363 t->code = pos2code(bytepos,c,(ptroff_t)t->code+offset,len);
371 (*codelookup) = malloc(sizeof(codelookup_t));
372 (*codelookup)->bytepos = bytepos;
373 (*codelookup)->len = len;
381 void codelookup_free(codelookup_t*codelookup)
383 free(codelookup->bytepos);codelookup->bytepos=0;
387 code_t*code_find_start(code_t*c)
394 void code_free(code_t*c)
396 c = code_find_start(c);
398 code_t*next = c->next;
399 opcode_t*op = opcode_get(c->opcode);
400 char*p = op?op->params:"";
403 void*data = c->data[pos];
404 if(*p == '2') { //multiname
405 multiname_destroy(data);
406 } else if(strchr("sDf", *p)) {
408 } else if(strchr("S", *p)) {
409 lookupswitch_t*l = (lookupswitch_t*)data;
410 list_free(l->targets);l->targets=0;
416 memset(c, 0, sizeof(c));
422 static int opcode_write(TAG*tag, code_t*c, pool_t*pool, abc_file_t*file, int length)
424 opcode_t*op = opcode_get(c->opcode);
430 swf_SetU8(tag, c->opcode);
434 void*data = c->data[pos++];
436 if(*p == 'n') { // number
437 len += swf_SetU30(tag, (ptroff_t)data);
438 } else if(*p == '2') { //multiname
439 multiname_t*m = (multiname_t*)data;
440 len += swf_SetU30(tag, pool_register_multiname(pool, m));
441 } else if(*p == 'm') { //method
442 abc_method_t*m = (abc_method_t*)data;
443 len += swf_SetU30(tag, m->index);
444 } else if(*p == 'c') { //classinfo
445 abc_class_t*cls = (abc_class_t*)data;
446 len += swf_SetU30(tag, cls->index);
447 } else if(*p == 'i') { //methodbody
448 abc_method_body_t*m = (abc_method_body_t*)data;
449 len += swf_SetU30(tag, m->index);
450 } else if(*p == 'I') { // int
451 len += swf_SetU30(tag, pool_register_int(pool, (ptroff_t)data));
452 } else if(*p == 'U') { // uint
453 len += swf_SetU30(tag, pool_register_uint(pool, (ptroff_t)data));
454 } else if(*p == 'f') { // float
455 len += swf_SetU30(tag, pool_register_float(pool, *(double*)data));
456 } else if(*p == 'u') { // integer
457 len += swf_SetU30(tag, (ptroff_t)data);
458 } else if(*p == 'r') { // integer
459 len += swf_SetU30(tag, (ptroff_t)data);
460 } else if(*p == 'b') { // byte
462 swf_SetU8(tag, (ptroff_t)data);
464 } else if(*p == 'j') { // jump
465 int skip = length-c->pos-4;
467 skip = (c->branch->pos) - c->pos - 4;
468 len += swf_SetS24(tag, skip);
469 } else if(*p == 's') { // string
470 int index = pool_register_string(pool, data);
471 len += swf_SetU30(tag, index);
472 } else if(*p == 'D') { // debug statement
476 len+=swf_SetU30(tag, pool_register_string(pool,c->data[0]));
478 swf_SetU8(tag, (ptroff_t)c->data[1]);
480 len+=swf_SetU30(tag, 0);
481 } else if(*p == 'S') { // switch statement
482 lookupswitch_t*l = (lookupswitch_t*)data;
484 len+=swf_SetS24(tag, l->def->pos-c->pos+offset); //default
485 code_list_t*t = l->targets;
487 len+=swf_SetU30(tag, list_length(t)-1); //nr-1
488 code_list_t*t = l->targets;
490 len+=swf_SetS24(tag, t->code->pos - c->pos+offset);
494 len+=swf_SetU30(tag, 0); //nr-1
495 len+=swf_SetS24(tag, l->def->pos-c->pos+offset);
498 printf("Can't parse opcode param type \"%c\"\n", *p);
505 void code_write(TAG*tag, code_t*code, pool_t*pool, abc_file_t*file)
507 code = code_find_start(code);
513 pos += opcode_write(0, c, pool, file, 0);
517 swf_SetU30(tag, pos);
518 int start = tag->len;
522 opcode_t*op = opcode_get(code->opcode);
523 if(op->flags&(OP_BRANCH|OP_JUMP)) {
526 pos += opcode_write(tag, c, pool, file, length);
529 assert(tag->len - start == pos);
548 static int stack_minus(code_t*c)
550 opcode_t*op = opcode_get(c->opcode);
551 if(op->stack_minus>0) {
552 fprintf(stderr, "Invalid opcode entry %02x %s\n", c->opcode, op->name);
554 int stack = op->stack_minus;
555 if(op->flags&OP_STACK_NS) {
556 multiname_t*m = (multiname_t*)c->data[0];
557 if(multiname_late_namespace(m))
559 if(multiname_late_name(m))
562 if(op->flags&OP_STACK_ARGS || op->flags&OP_STACK_ARGS2) {
563 assert(strchr(op->params, 'n'));
564 int nr = (ptroff_t)(op->params[0]=='n'?c->data[0]:c->data[1]);
566 if(op->flags&OP_STACK_ARGS2)
571 static void handleregister(currentstats_t*stats, int reg)
573 if(reg+1 > stats->maxlocal)
574 stats->maxlocal = reg+1;
577 static void dumpstack(currentstats_t*stats)
580 for(t=0;t<stats->num;t++) {
581 code_t*c = stats->stack[t].code;
582 opcode_t*op = opcode_get(c->opcode);
583 printf("%5d) %c %d:%d %s", t, stats->stack[t].seen?'x':'|',
584 stats->stack[t].stackpos,
585 stats->stack[t].scopepos,
588 if(op->flags&(OP_BRANCH|OP_JUMP)) {
590 printf(" ->%d\n", c->branch->pos);
592 printf(" 00000000\n");
594 if(op->params[0]=='2') {
595 printf(" %s", multiname_tostring(c->data[0]));
601 static char callcode(currentstats_t*stats, int pos, int stack, int scope)
603 while(pos<stats->num) {
604 if(stats->stack[pos].seen) {
605 if(stats->stack[pos].stackpos != stack ||
606 stats->stack[pos].scopepos != scope) {
608 fprintf(stderr, "Stack mismatch at pos %d\n", pos);
609 fprintf(stderr, "Should be: %d:%d, is: %d:%d\n", stack, scope,
610 stats->stack[pos].stackpos, stats->stack[pos].scopepos);
612 /* return error here if we do verification */
618 stats->stack[pos].seen = 1;
619 stats->stack[pos].stackpos = stack;
620 stats->stack[pos].scopepos = scope;
622 code_t*c = stats->stack[pos].code;
623 opcode_t*op = opcode_get(c->opcode);
625 //printf("Walking %s at position %d, stack=%d, scope=%d\n", op->name, pos, stack, scope);
627 stack += stack_minus(c);
630 fprintf(stderr, "error: stack underflow at %d (%s)\n", pos, op->name);
632 /* if we would do true verification (if we would be a vm), this is
633 where we would return the error
638 stack += op->stack_plus;
639 scope += op->scope_stack_plus;
641 if(stack > stats->maxstack)
642 stats->maxstack = stack;
643 if(scope > stats->maxscope)
644 stats->maxscope = scope;
646 if(op->flags & OP_SET_DXNS)
647 stats->flags |= FLAGS_SET_DXNS;
648 if(op->flags & OP_NEED_ACTIVATION)
649 stats->flags |= FLAGS_ACTIVATION;
651 if(c->opcode == OP_NEWCLASS) {
652 abc_class_t*cls = (abc_class_t*)(c->data[0]);
653 if(scope > cls->init_scope_depth)
654 cls->init_scope_depth = scope;
656 if(c->opcode == OP_NEWFUNCTION) {
657 abc_method_t*m = (abc_method_t*)(c->data[0]);
658 if(m->body && scope > m->body->init_scope_depth)
659 m->body->init_scope_depth = scope;
662 if(op->flags & OP_REGISTER) {
668 handleregister(stats, (ptroff_t)c->data[pos]);
674 handleregister(stats, c->opcode&3);
677 if(op->flags&OP_RETURN) {
678 if(OP_RETURN==0x48/*returnvalue*/) {
680 fprintf(stderr, "return(value) with stackposition %d\n", stack);
681 } else if(OP_RETURN==0x47) {
683 fprintf(stderr, "return(void) with stackposition %d\n", stack);
686 if(op->flags & (OP_THROW|OP_RETURN))
688 if(op->flags & OP_JUMP) {
690 fprintf(stderr, "Error: Invalid jump target in instruction %s at position %d.\n", op->name, pos);
697 if(op->flags & OP_BRANCH) {
699 fprintf(stderr, "Error: Invalid jump target in instruction %s at position %d\n", op->name, pos);
702 int newpos = c->branch->pos;
703 if(!callcode(stats, newpos, stack, scope))
706 if(op->flags & OP_LOOKUPSWITCH) {
707 lookupswitch_t*l = c->data[0];
709 fprintf(stderr, "Error: Invalid jump target in instruction %s at position %d\n", op->name, pos);
712 if(!callcode(stats, l->def->pos, stack, scope))
714 code_list_t*t = l->targets;
717 fprintf(stderr, "Error: Invalid jump target in instruction %s at position %d\n", op->name, pos);
720 if(!callcode(stats, t->code->pos, stack, scope))
728 assert(c->next == stats->stack[pos].code);
734 static currentstats_t* code_get_stats(code_t*code, exception_list_t*exceptions)
736 code = code_find_start(code);
743 currentstats_t* current = malloc(sizeof(currentstats_t));
744 current->stack = rfx_calloc(sizeof(stackpos_t)*num);
745 current->maxlocal = 0;
746 current->maxstack = 0;
747 current->maxscope = 0;
751 //#define DEBUG_BYTES
756 opcode_t*op = opcode_get(c->opcode);
757 if(op->flags & (OP_JUMP|OP_BRANCH)) {
758 printf("%5d) %s %08x\n", t, op->name, c->branch);
759 } else if(op->params[0]=='2') {
760 printf("%5d) %s %s\n", t, op->name, multiname_tostring(c->data[0]));
762 printf("%5d) %s\n", t, op->name);
766 //printf("%5d) %02x\n", t, tag->data[start+t]);
773 current->stack[num].code = c;
779 if(!callcode(current, 0, 0, 0)) {
783 exception_list_t*e = exceptions;
785 if(e->exception->target)
786 callcode(current, e->exception->target->pos, 1, 0);
793 void stats_free(currentstats_t*stats)
796 free(stats->stack);stats->stack=0;
801 int code_dump(code_t*c, exception_list_t*exceptions, abc_file_t*file, char*prefix, FILE*fo)
803 exception_list_t*e = exceptions;
804 c = code_find_start(c);
805 currentstats_t*stats = code_get_stats(c, exceptions);
809 U8 opcode = c->opcode;
811 opcode_t*op = opcode_get(opcode);
815 if(c==e->exception->from)
816 fprintf(fo, "%s TRY {\n", prefix);
817 if(c==e->exception->target) {
818 char*s1 = multiname_tostring(e->exception->exc_type);
819 char*s2 = multiname_tostring(e->exception->var_name);
820 fprintf(fo, "%s CATCH(%s %s)\n", prefix, s1, s2);
828 fprintf(stderr, "Can't parse opcode %02x.\n", opcode);
836 fprintf(fo, "%s%5d) %c %d:%d %s ", prefix, c->pos, stats->stack[c->pos].seen?'x':'|',
837 stats->stack[c->pos].stackpos,
838 stats->stack[c->pos].scopepos,
841 fprintf(fo, "%s%5d) ? ?:? %s ", prefix, c->pos, op->name);
845 void*data = c->data[i];
850 int n = (ptroff_t)data;
851 fprintf(fo, "%d params", n);
852 } else if(*p == '2') {
853 multiname_t*n = (multiname_t*)data;
854 char* m = multiname_tostring(n);
855 fprintf(fo, "%s", m);
857 } else if(*p == 'm') {
858 abc_method_t*m = (abc_method_t*)data;
859 fprintf(fo, "[method %s]", m->name);
860 } else if(*p == 'c') {
861 abc_class_t*cls = (abc_class_t*)data;
862 char*classname = multiname_tostring(cls->classname);
863 fprintf(fo, "[classinfo %s]", classname);
865 } else if(*p == 'i') {
866 abc_method_body_t*b = (abc_method_body_t*)data;
867 fprintf(fo, "[methodbody]");
868 } else if(*p == 'u' || *p == 'I' || *p == 'U') {
869 int n = (ptroff_t)data;
870 fprintf(fo, "%d", n);
871 } else if(*p == 'f') {
872 double f = *(double*)data;
873 fprintf(fo, "%f", f);
874 } else if(*p == 'r') {
875 int n = (ptroff_t)data;
876 fprintf(fo, "r%d", n);
877 } else if(*p == 'b') {
878 int b = (ptroff_t)data;
879 fprintf(fo, "%02x", b);
880 } else if(*p == 'j') {
882 fprintf(fo, "->%d", c->branch->pos);
884 fprintf(fo, "%08x", c->branch);
885 } else if(*p == 's') {
886 fprintf(fo, "\"%s\"", data);
887 } else if(*p == 'D') {
888 fprintf(fo, "[register %02x=%s]", (ptroff_t)c->data[1], (char*)c->data[0]);
889 } else if(*p == 'S') {
890 lookupswitch_t*l = c->data[0];
893 fprintf(fo, "default->%d", l->def->pos);
895 fprintf(fo, "default->00000000", l->def->pos);
896 code_list_t*t = l->targets;
899 fprintf(fo, ",->%d", t->code->pos);
901 fprintf(fo, ",->00000000");
906 fprintf(stderr, "Can't parse opcode param type \"%c\"\n", *p);
918 if(c==e->exception->to) {
919 if(e->exception->target)
920 fprintf(fo, "%s } // END TRY (HANDLER: %d)\n", prefix, e->exception->target->pos);
922 fprintf(fo, "%s } // END TRY (HANDLER: 00000000)\n", prefix);
934 codestats_t* code_get_statistics(code_t*code, exception_list_t*exceptions)
936 currentstats_t*current = code_get_stats(code, exceptions);
939 codestats_t*stats = rfx_calloc(sizeof(codestats_t));
940 stats->local_count = current->maxlocal;
941 stats->max_stack = current->maxstack;
942 stats->max_scope_depth = current->maxscope;
943 stats->flags = current->flags;
945 stats_free(current);current=0;
949 void codestats_free(codestats_t*s)
954 code_t* add_opcode(code_t*atag, U8 op)
956 code_t*tmp = (code_t*)rfx_calloc(sizeof(code_t));
961 tmp->next = atag->next;
969 void codestats_print(codestats_t*stats)
971 printf("max_stack: %d\n", stats->max_stack);
972 printf("local_count: %d\n", stats->local_count);
973 printf("scope_depth: %d\n", stats->max_scope_depth);
976 code_t* code_append(code_t*code, code_t*toappend)
982 //find end of first list
986 code_t*start=toappend;
987 //and start of second list