1 #define NO_OBSOLETE_FUNCS
14 #define IS_START(w, y) !strncmp(w, y, strlen(y))
15 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
17 // non-local branch targets
18 static ea_t *nonlocal_bt;
19 static int nonlocal_bt_alloc;
20 static int nonlocal_bt_cnt;
22 //--------------------------------------------------------------------------
23 static int idaapi init(void)
28 //--------------------------------------------------------------------------
29 static void idaapi term(void)
31 if (nonlocal_bt != NULL) {
35 nonlocal_bt_alloc = 0;
38 //--------------------------------------------------------------------------
40 static const char *reserved_names[] = {
47 static int is_name_reserved(const char *name)
50 for (i = 0; i < ARRAY_SIZE(reserved_names); i++)
51 if (strcasecmp(name, reserved_names[i]) == 0)
57 static int nonlocal_bt_cmp(const void *p1, const void *p2)
59 const ea_t *e1 = (const ea_t *)p1, *e2 = (const ea_t *)p2;
63 static void nonlocal_add(ea_t ea)
65 if (nonlocal_bt_cnt >= nonlocal_bt_alloc) {
66 nonlocal_bt_alloc += nonlocal_bt_alloc * 2 + 64;
67 nonlocal_bt = (ea_t *)realloc(nonlocal_bt,
68 nonlocal_bt_alloc * sizeof(nonlocal_bt[0]));
69 if (nonlocal_bt == NULL) {
74 nonlocal_bt[nonlocal_bt_cnt++] = ea;
77 // is instruction a (un)conditional jump (not call)?
78 static int is_insn_jmp(uint16 itype)
80 return itype == NN_jmp || (NN_ja <= itype && itype <= NN_jz);
83 static void do_def_line(char *buf, size_t buf_size, const char *line)
89 tag_remove(line, buf, buf_size); // remove color codes
95 memmove(buf, buf + 9, len - 9 + 1); // rm address
97 if (IS_START(buf, "loc_")) {
98 ea = strtoul(buf + 4, &endp, 16);
99 if (ea != 0 && *endp == ':') {
100 ea_ret = (ea_t *)bsearch(&ea, nonlocal_bt, nonlocal_bt_cnt,
101 sizeof(nonlocal_bt[0]), nonlocal_bt_cmp);
104 msg("no trailing blank in '%s'\n", buf);
112 static void idaapi run(int /*arg*/)
114 // isEnabled(ea) // address belongs to disassembly
115 // ea_t ea = get_screen_ea();
116 // foo = DecodeInstruction(ScreenEA());
124 ea_t ui_ea_block = 0, ea_size;
125 ea_t tmp_ea, target_ea;
135 // get rid of structs, masm doesn't understand them
136 idx = get_first_struc_idx();
137 while (idx != BADNODE) {
138 tid_t tid = get_struc_by_idx(idx);
139 struc_t *struc = get_struc(tid);
140 get_struc_name(tid, buf, sizeof(buf));
141 msg("removing struct '%s'\n", buf);
142 //del_struc_members(struc, 0, get_max_offset(struc));
145 idx = get_first_struc_idx();
148 // 1st pass: walk through all funcs
149 func = get_func(inf.minEA);
152 func_tail_iterator_t fti(func);
154 msg("%x: func_tail_iterator_t main failed\n", ea);
157 const area_t &f_area = fti.chunk();
160 // rename global syms which conflict with frame member names
161 frame = get_frame(func);
164 for (m = 0; m < (int)frame->memqty; m++)
166 ret = get_member_name(frame->members[m].id, buf, sizeof(buf));
168 msg("%x: member has no name?\n", ea);
171 if (buf[0] == ' ') // what's this?
173 if (IS_START(buf, "arg_") || IS_START(buf, "var_"))
176 // check for dupe names
178 for (m1 = 0; m1 < m; m1++) {
179 get_member_name(frame->members[m1].id, buf2, sizeof(buf2));
180 if (stricmp(buf, buf2) == 0)
184 if (is_name_reserved(buf) || dupe) {
185 msg("%x: renaming '%s'\n", ea, buf);
186 qstrncat(buf, "_", sizeof(buf));
187 ret = set_member_name(frame, frame->members[m].soff, buf);
189 msg("%x: renaming failed\n", ea);
194 tmp_ea = get_name_ea(ea, buf);
195 if (tmp_ea == 0 || tmp_ea == ~0)
198 msg("%x: from %x: renaming '%s'\n", tmp_ea, ea, buf);
199 qstrncat(buf, "_g", sizeof(buf));
200 set_name(tmp_ea, buf);
204 func = get_next_func(ea);
207 // 2nd pass over whole .text and .(ro)data segments
208 for (ea = inf.minEA; ea != BADADDR; ea = next_head(ea, inf.maxEA))
210 segment_t *seg = getseg(ea);
213 if (seg->type == SEG_XTRN)
215 if (seg->type != SEG_CODE && seg->type != SEG_DATA)
218 ea_flags = get_flags_novalue(ea);
220 if (isCode(ea_flags))
222 if (!decode_insn(ea)) {
223 msg("%x: decode_insn() failed\n", ea);
227 // masm doesn't understand IDA's float/xmm types
228 if (cmd.itype == NN_fld || cmd.itype == NN_fst
229 || cmd.itype == NN_movapd || cmd.itype == NN_movlpd)
231 for (o = 0; o < UA_MAXOP; o++) {
232 if (cmd.Operands[o].type == o_void)
235 if (cmd.Operands[o].type == o_mem) {
236 tmp_ea = cmd.Operands[o].addr;
237 flags_t tmp_ea_flags = get_flags_novalue(tmp_ea);
238 if (!isUnknown(tmp_ea_flags)) {
240 get_name(ea, tmp_ea, buf, sizeof(buf));
241 msg("%x: undefining %x '%s'\n", ea, tmp_ea, buf);
242 do_unknown(tmp_ea, DOUNK_EXPAND);
247 // detect code alignment
248 else if (cmd.itype == NN_lea) {
249 if (cmd.Operands[0].reg == cmd.Operands[1].reg
250 && cmd.Operands[1].type == o_displ
251 && cmd.Operands[1].addr == 0)
253 tmp_ea = next_head(ea, inf.maxEA);
254 if ((tmp_ea & 0x03) == 0) {
255 n = calc_max_align(tmp_ea);
256 if (n > 4) // masm doesn't like more..
258 msg("%x: align %d\n", ea, 1 << n);
259 do_unknown(ea, DOUNK_SIMPLE);
260 doAlign(ea, tmp_ea - ea, n);
265 // find non-local branches
266 if (is_insn_jmp(cmd.itype) && cmd.Operands[0].type == o_near)
268 target_ea = cmd.Operands[0].addr;
270 nonlocal_add(target_ea);
272 ret = get_func_chunknum(func, target_ea);
274 // a jump to another func or chunk
275 // check if it lands on func start
276 if (!isFunc(get_flags_novalue(target_ea)))
277 nonlocal_add(target_ea);
284 ea_size = get_item_size(ea);
286 if (func == NULL && isOff0(ea_flags)) {
287 for (tmp_ea = 0; tmp_ea < ea_size; tmp_ea += 4)
288 nonlocal_add(get_long(ea + tmp_ea));
291 // IDA vs masm float/mmx/xmm type incompatibility
292 if (isDouble(ea_flags) || isTbyt(ea_flags)
293 || isPackReal(ea_flags))
297 else if (isOwrd(ea_flags)) {
299 get_name(BADADDR, ea, buf, sizeof(buf));
300 if (IS_START(buf, "xmm"))
303 // masm doesn't understand IDA's unicode
304 else if (isASCII(ea_flags) && ea_size >= 4
305 && (get_long(ea) & 0xff00ff00) == 0) // lame..
309 // masm doesn't understand large aligns
310 else if (isAlign(ea_flags) && ea_size > 0x10) {
311 msg("%x: undefining align %d\n", ea, ea_size);
312 do_unknown(ea, DOUNK_EXPAND);
317 get_name(BADADDR, ea, buf, sizeof(buf));
318 msg("%x: undefining '%s'\n", ea, buf);
319 do_unknown(ea, DOUNK_EXPAND);
324 // check namelist for reserved names
325 n = get_nlist_size();
326 for (i = 0; i < n; i++) {
327 ea = get_nlist_ea(i);
328 name = get_nlist_name(i);
330 msg("%x: null name?\n", ea);
334 if (is_name_reserved(name)) {
335 msg("%x: renaming name '%s'\n", ea, name);
336 qsnprintf(buf, sizeof(buf), "%s_g", name);
341 if (nonlocal_bt_cnt > 1) {
342 qsort(nonlocal_bt, nonlocal_bt_cnt,
343 sizeof(nonlocal_bt[0]), nonlocal_bt_cmp);
346 char *fname = askfile_c(1, NULL, "Save asm file");
349 fout = qfopen(fname, "w");
351 msg("couldn't open '%s'\n", fname);
355 show_wait_box("Saving..");
357 // deal with the beginning
359 int flags = 0; // calc_default_idaplace_flags();
360 linearray_t ln(&flags);
365 n = ln.get_linecnt();
366 for (i = 0; i < n - 1; i++) {
367 do_def_line(buf, sizeof(buf), ln.down());
368 if (strstr(buf, "include"))
372 qfprintf(fout, "%s\n", buf);
373 p = strstr(buf, ".mmx");
375 memcpy(p, ".xmm", 4);
377 qfprintf(fout, "%s\n", buf);
384 int drop_large = 0, drop_rva = 0, set_scale = 0, jmp_near = 0;
385 int word_imm = 0, dword_imm = 0, do_pushf = 0;
387 if ((ea >> 14) != ui_ea_block) {
388 ui_ea_block = ea >> 14;
394 segment_t *seg = getseg(ea);
395 if (!seg || (seg->type != SEG_CODE && seg->type != SEG_DATA))
398 ea_flags = get_flags_novalue(ea);
399 if (isCode(ea_flags))
401 if (!decode_insn(ea))
404 if (is_insn_jmp(cmd.itype) && cmd.Operands[0].type == o_near
405 && cmd.Operands[0].dtyp == dt_dword)
409 else if ((cmd.itype == NN_pushf || cmd.itype == NN_popf)
415 for (o = 0; o < UA_MAXOP; o++) {
416 const op_t &opr = cmd.Operands[o];
417 if (opr.type == o_void)
421 if (opr.type == o_mem && opr.specval_shorts.high == 0x21)
423 if (opr.hasSIB && x86_scale(opr) == 0
424 && x86_index(opr) != INDEX_NONE)
428 // annoying alignment variant..
429 if (opr.type == o_imm && opr.dtyp == dt_dword
430 && (opr.value < 0x80 || opr.value > 0xffffff80)
431 && cmd.size >= opr.offb + 4)
433 if (get_long(ea + opr.offb) == opr.value)
436 else if (opr.type == o_imm && opr.dtyp == dt_word
437 && (opr.value < 0x80 || opr.value > 0xff80)
438 && cmd.size >= opr.offb + 2)
440 if (get_word(ea + opr.offb) == (ushort)opr.value)
446 if (isOff0(ea_flags))
451 n = ln.get_linecnt();
452 for (i = pl.lnnum; i < n; i++) {
453 do_def_line(buf, sizeof(buf), ln.down());
457 p = strstr(buf, "large ");
459 memmove(p, p + 6, strlen(p + 6) + 1);
462 p = strstr(buf, " rva ");
465 memmove(p, p + 4, strlen(p + 4) + 1);
468 p = strchr(buf, '[');
471 if (p != NULL && p[1] == 'e') {
473 // scale is 1, must specify it explicitly so that
474 // masm chooses the right scaled reg
475 memmove(p + 2, p, strlen(p) + 1);
480 p = strchr(buf, 'j');
481 while (p && *p != ' ')
483 while (p && *p == ' ')
486 memmove(p + 9, p, strlen(p) + 1);
487 memcpy(p, "near ptr ", 9);
491 p = strstr(buf, ", ");
492 if (p != NULL && '0' <= p[2] && p[2] <= '9') {
494 memmove(p + 9, p, strlen(p) + 1);
495 memcpy(p, "word ptr ", 9);
498 else if (dword_imm) {
499 p = strstr(buf, ", ");
500 if (p != NULL && '0' <= p[2] && p[2] <= '9') {
502 memmove(p + 10, p, strlen(p) + 1);
503 memcpy(p, "dword ptr ", 10);
507 p = strstr(buf, "pushf");
509 p = strstr(buf, "popf");
511 p = strchr(p, 'f') + 1;
512 memmove(p + 1, p, strlen(p) + 1);
518 qfprintf(fout, "%s\n", buf);
521 // note: next_head skips some undefined stuff
522 ea = next_not_tail(ea); // correct?
537 msg("%d lines saved.\n", fout_line);
540 //--------------------------------------------------------------------------
542 static const char comment[] = "Generate disassembly lines for one address";
543 static const char help[] = "Generate asm file\n";
544 static const char wanted_name[] = "Save asm";
545 static const char wanted_hotkey[] = "Ctrl-F6";
547 //--------------------------------------------------------------------------
549 // PLUGIN DESCRIPTION BLOCK
551 //--------------------------------------------------------------------------
554 IDP_INTERFACE_VERSION,
557 term, // terminate. this pointer may be NULL.
558 run, // invoke plugin
559 comment, // long comment about the plugin
560 // it could appear in the status line
562 help, // multiline help about the plugin
563 wanted_name, // the preferred short name of the plugin
564 wanted_hotkey // the preferred hotkey to run the plugin
567 // vim:ts=2:shiftwidth=2:expandtab