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bb2ec1b3 TT |
1 | /* Convert a DWARF location expression to C |
2 | ||
61baf725 | 3 | Copyright (C) 2014-2017 Free Software Foundation, Inc. |
bb2ec1b3 TT |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "dwarf2.h" | |
22 | #include "dwarf2expr.h" | |
23 | #include "dwarf2loc.h" | |
24 | #include "ui-file.h" | |
25 | #include "utils.h" | |
26 | #include "compile-internal.h" | |
27 | #include "compile.h" | |
28 | #include "block.h" | |
29 | #include "dwarf2-frame.h" | |
30 | #include "gdb_vecs.h" | |
31 | #include "value.h" | |
32 | ||
33 | \f | |
34 | ||
35 | /* Information about a given instruction. */ | |
36 | ||
37 | struct insn_info | |
38 | { | |
39 | /* Stack depth at entry. */ | |
40 | ||
41 | unsigned int depth; | |
42 | ||
43 | /* Whether this instruction has been visited. */ | |
44 | ||
45 | unsigned int visited : 1; | |
46 | ||
47 | /* Whether this instruction needs a label. */ | |
48 | ||
49 | unsigned int label : 1; | |
50 | ||
4aa4e28b TT |
51 | /* Whether this instruction is DW_OP_GNU_push_tls_address or |
52 | DW_OP_form_tls_address. This is a hack until we can add a | |
53 | feature to glibc to let us properly generate code for TLS. */ | |
bb2ec1b3 TT |
54 | |
55 | unsigned int is_tls : 1; | |
56 | }; | |
57 | ||
58 | /* A helper function for compute_stack_depth that does the work. This | |
59 | examines the DWARF expression starting from START and computes | |
60 | stack effects. | |
61 | ||
62 | NEED_TEMPVAR is an out parameter which is set if this expression | |
63 | needs a special temporary variable to be emitted (see the code | |
64 | generator). | |
65 | INFO is an array of insn_info objects, indexed by offset from the | |
66 | start of the DWARF expression. | |
67 | TO_DO is a list of bytecodes which must be examined; it may be | |
68 | added to by this function. | |
69 | BYTE_ORDER and ADDR_SIZE describe this bytecode in the obvious way. | |
70 | OP_PTR and OP_END are the bounds of the DWARF expression. */ | |
71 | ||
72 | static void | |
73 | compute_stack_depth_worker (int start, int *need_tempvar, | |
74 | struct insn_info *info, | |
711799d5 | 75 | std::vector<int> *to_do, |
bb2ec1b3 TT |
76 | enum bfd_endian byte_order, unsigned int addr_size, |
77 | const gdb_byte *op_ptr, const gdb_byte *op_end) | |
78 | { | |
79 | const gdb_byte * const base = op_ptr; | |
80 | int stack_depth; | |
81 | ||
82 | op_ptr += start; | |
83 | gdb_assert (info[start].visited); | |
84 | stack_depth = info[start].depth; | |
85 | ||
86 | while (op_ptr < op_end) | |
87 | { | |
aead7601 | 88 | enum dwarf_location_atom op = (enum dwarf_location_atom) *op_ptr; |
bb2ec1b3 TT |
89 | uint64_t reg; |
90 | int64_t offset; | |
91 | int ndx = op_ptr - base; | |
92 | ||
93 | #define SET_CHECK_DEPTH(WHERE) \ | |
94 | if (info[WHERE].visited) \ | |
95 | { \ | |
96 | if (info[WHERE].depth != stack_depth) \ | |
97 | error (_("inconsistent stack depths")); \ | |
98 | } \ | |
99 | else \ | |
100 | { \ | |
101 | /* Stack depth not set, so set it. */ \ | |
102 | info[WHERE].visited = 1; \ | |
103 | info[WHERE].depth = stack_depth; \ | |
104 | } | |
105 | ||
106 | SET_CHECK_DEPTH (ndx); | |
107 | ||
108 | ++op_ptr; | |
109 | ||
110 | switch (op) | |
111 | { | |
112 | case DW_OP_lit0: | |
113 | case DW_OP_lit1: | |
114 | case DW_OP_lit2: | |
115 | case DW_OP_lit3: | |
116 | case DW_OP_lit4: | |
117 | case DW_OP_lit5: | |
118 | case DW_OP_lit6: | |
119 | case DW_OP_lit7: | |
120 | case DW_OP_lit8: | |
121 | case DW_OP_lit9: | |
122 | case DW_OP_lit10: | |
123 | case DW_OP_lit11: | |
124 | case DW_OP_lit12: | |
125 | case DW_OP_lit13: | |
126 | case DW_OP_lit14: | |
127 | case DW_OP_lit15: | |
128 | case DW_OP_lit16: | |
129 | case DW_OP_lit17: | |
130 | case DW_OP_lit18: | |
131 | case DW_OP_lit19: | |
132 | case DW_OP_lit20: | |
133 | case DW_OP_lit21: | |
134 | case DW_OP_lit22: | |
135 | case DW_OP_lit23: | |
136 | case DW_OP_lit24: | |
137 | case DW_OP_lit25: | |
138 | case DW_OP_lit26: | |
139 | case DW_OP_lit27: | |
140 | case DW_OP_lit28: | |
141 | case DW_OP_lit29: | |
142 | case DW_OP_lit30: | |
143 | case DW_OP_lit31: | |
144 | ++stack_depth; | |
145 | break; | |
146 | ||
147 | case DW_OP_addr: | |
148 | op_ptr += addr_size; | |
149 | ++stack_depth; | |
150 | break; | |
151 | ||
152 | case DW_OP_const1u: | |
153 | case DW_OP_const1s: | |
154 | op_ptr += 1; | |
155 | ++stack_depth; | |
156 | break; | |
157 | case DW_OP_const2u: | |
158 | case DW_OP_const2s: | |
159 | op_ptr += 2; | |
160 | ++stack_depth; | |
161 | break; | |
162 | case DW_OP_const4u: | |
163 | case DW_OP_const4s: | |
164 | op_ptr += 4; | |
165 | ++stack_depth; | |
166 | break; | |
167 | case DW_OP_const8u: | |
168 | case DW_OP_const8s: | |
169 | op_ptr += 8; | |
170 | ++stack_depth; | |
171 | break; | |
172 | case DW_OP_constu: | |
173 | case DW_OP_consts: | |
174 | op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset); | |
175 | ++stack_depth; | |
176 | break; | |
177 | ||
178 | case DW_OP_reg0: | |
179 | case DW_OP_reg1: | |
180 | case DW_OP_reg2: | |
181 | case DW_OP_reg3: | |
182 | case DW_OP_reg4: | |
183 | case DW_OP_reg5: | |
184 | case DW_OP_reg6: | |
185 | case DW_OP_reg7: | |
186 | case DW_OP_reg8: | |
187 | case DW_OP_reg9: | |
188 | case DW_OP_reg10: | |
189 | case DW_OP_reg11: | |
190 | case DW_OP_reg12: | |
191 | case DW_OP_reg13: | |
192 | case DW_OP_reg14: | |
193 | case DW_OP_reg15: | |
194 | case DW_OP_reg16: | |
195 | case DW_OP_reg17: | |
196 | case DW_OP_reg18: | |
197 | case DW_OP_reg19: | |
198 | case DW_OP_reg20: | |
199 | case DW_OP_reg21: | |
200 | case DW_OP_reg22: | |
201 | case DW_OP_reg23: | |
202 | case DW_OP_reg24: | |
203 | case DW_OP_reg25: | |
204 | case DW_OP_reg26: | |
205 | case DW_OP_reg27: | |
206 | case DW_OP_reg28: | |
207 | case DW_OP_reg29: | |
208 | case DW_OP_reg30: | |
209 | case DW_OP_reg31: | |
210 | ++stack_depth; | |
211 | break; | |
212 | ||
213 | case DW_OP_regx: | |
214 | op_ptr = safe_read_uleb128 (op_ptr, op_end, ®); | |
215 | ++stack_depth; | |
216 | break; | |
217 | ||
218 | case DW_OP_breg0: | |
219 | case DW_OP_breg1: | |
220 | case DW_OP_breg2: | |
221 | case DW_OP_breg3: | |
222 | case DW_OP_breg4: | |
223 | case DW_OP_breg5: | |
224 | case DW_OP_breg6: | |
225 | case DW_OP_breg7: | |
226 | case DW_OP_breg8: | |
227 | case DW_OP_breg9: | |
228 | case DW_OP_breg10: | |
229 | case DW_OP_breg11: | |
230 | case DW_OP_breg12: | |
231 | case DW_OP_breg13: | |
232 | case DW_OP_breg14: | |
233 | case DW_OP_breg15: | |
234 | case DW_OP_breg16: | |
235 | case DW_OP_breg17: | |
236 | case DW_OP_breg18: | |
237 | case DW_OP_breg19: | |
238 | case DW_OP_breg20: | |
239 | case DW_OP_breg21: | |
240 | case DW_OP_breg22: | |
241 | case DW_OP_breg23: | |
242 | case DW_OP_breg24: | |
243 | case DW_OP_breg25: | |
244 | case DW_OP_breg26: | |
245 | case DW_OP_breg27: | |
246 | case DW_OP_breg28: | |
247 | case DW_OP_breg29: | |
248 | case DW_OP_breg30: | |
249 | case DW_OP_breg31: | |
250 | op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset); | |
251 | ++stack_depth; | |
252 | break; | |
253 | case DW_OP_bregx: | |
254 | { | |
255 | op_ptr = safe_read_uleb128 (op_ptr, op_end, ®); | |
256 | op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset); | |
257 | ++stack_depth; | |
258 | } | |
259 | break; | |
260 | case DW_OP_fbreg: | |
261 | op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset); | |
262 | ++stack_depth; | |
263 | break; | |
264 | ||
265 | case DW_OP_dup: | |
266 | ++stack_depth; | |
267 | break; | |
268 | ||
269 | case DW_OP_drop: | |
270 | --stack_depth; | |
271 | break; | |
272 | ||
273 | case DW_OP_pick: | |
274 | ++op_ptr; | |
275 | ++stack_depth; | |
276 | break; | |
277 | ||
278 | case DW_OP_rot: | |
279 | case DW_OP_swap: | |
280 | *need_tempvar = 1; | |
281 | break; | |
282 | ||
283 | case DW_OP_over: | |
284 | ++stack_depth; | |
285 | break; | |
286 | ||
287 | case DW_OP_abs: | |
288 | case DW_OP_neg: | |
289 | case DW_OP_not: | |
290 | case DW_OP_deref: | |
291 | break; | |
292 | ||
293 | case DW_OP_deref_size: | |
294 | ++op_ptr; | |
295 | break; | |
296 | ||
297 | case DW_OP_plus_uconst: | |
298 | op_ptr = safe_read_uleb128 (op_ptr, op_end, ®); | |
299 | break; | |
300 | ||
301 | case DW_OP_div: | |
302 | case DW_OP_shra: | |
303 | case DW_OP_and: | |
304 | case DW_OP_minus: | |
305 | case DW_OP_mod: | |
306 | case DW_OP_mul: | |
307 | case DW_OP_or: | |
308 | case DW_OP_plus: | |
309 | case DW_OP_shl: | |
310 | case DW_OP_shr: | |
311 | case DW_OP_xor: | |
312 | case DW_OP_le: | |
313 | case DW_OP_ge: | |
314 | case DW_OP_eq: | |
315 | case DW_OP_lt: | |
316 | case DW_OP_gt: | |
317 | case DW_OP_ne: | |
318 | --stack_depth; | |
319 | break; | |
320 | ||
321 | case DW_OP_call_frame_cfa: | |
322 | ++stack_depth; | |
323 | break; | |
324 | ||
325 | case DW_OP_GNU_push_tls_address: | |
4aa4e28b | 326 | case DW_OP_form_tls_address: |
bb2ec1b3 TT |
327 | info[ndx].is_tls = 1; |
328 | break; | |
329 | ||
330 | case DW_OP_skip: | |
331 | offset = extract_signed_integer (op_ptr, 2, byte_order); | |
332 | op_ptr += 2; | |
333 | offset = op_ptr + offset - base; | |
334 | /* If the destination has not been seen yet, add it to the | |
335 | to-do list. */ | |
336 | if (!info[offset].visited) | |
711799d5 | 337 | to_do->push_back (offset); |
bb2ec1b3 TT |
338 | SET_CHECK_DEPTH (offset); |
339 | info[offset].label = 1; | |
340 | /* We're done with this line of code. */ | |
341 | return; | |
342 | ||
343 | case DW_OP_bra: | |
344 | offset = extract_signed_integer (op_ptr, 2, byte_order); | |
345 | op_ptr += 2; | |
346 | offset = op_ptr + offset - base; | |
347 | --stack_depth; | |
348 | /* If the destination has not been seen yet, add it to the | |
349 | to-do list. */ | |
350 | if (!info[offset].visited) | |
711799d5 | 351 | to_do->push_back (offset); |
bb2ec1b3 TT |
352 | SET_CHECK_DEPTH (offset); |
353 | info[offset].label = 1; | |
354 | break; | |
355 | ||
356 | case DW_OP_nop: | |
357 | break; | |
358 | ||
359 | default: | |
360 | error (_("unhandled DWARF op: %s"), get_DW_OP_name (op)); | |
361 | } | |
362 | } | |
363 | ||
364 | gdb_assert (op_ptr == op_end); | |
365 | ||
366 | #undef SET_CHECK_DEPTH | |
367 | } | |
368 | ||
369 | /* Compute the maximum needed stack depth of a DWARF expression, and | |
370 | some other information as well. | |
371 | ||
372 | BYTE_ORDER and ADDR_SIZE describe this bytecode in the obvious way. | |
373 | NEED_TEMPVAR is an out parameter which is set if this expression | |
374 | needs a special temporary variable to be emitted (see the code | |
375 | generator). | |
376 | IS_TLS is an out parameter which is set if this expression refers | |
377 | to a TLS variable. | |
378 | OP_PTR and OP_END are the bounds of the DWARF expression. | |
379 | INITIAL_DEPTH is the initial depth of the DWARF expression stack. | |
380 | INFO is an array of insn_info objects, indexed by offset from the | |
381 | start of the DWARF expression. | |
382 | ||
383 | This returns the maximum stack depth. */ | |
384 | ||
385 | static int | |
386 | compute_stack_depth (enum bfd_endian byte_order, unsigned int addr_size, | |
387 | int *need_tempvar, int *is_tls, | |
388 | const gdb_byte *op_ptr, const gdb_byte *op_end, | |
389 | int initial_depth, | |
390 | struct insn_info **info) | |
391 | { | |
392 | unsigned char *set; | |
711799d5 TT |
393 | struct cleanup *outer_cleanup; |
394 | std::vector<int> to_do; | |
bb2ec1b3 TT |
395 | int stack_depth, i; |
396 | ||
397 | *info = XCNEWVEC (struct insn_info, op_end - op_ptr); | |
398 | outer_cleanup = make_cleanup (xfree, *info); | |
399 | ||
711799d5 | 400 | to_do.push_back (0); |
bb2ec1b3 TT |
401 | (*info)[0].depth = initial_depth; |
402 | (*info)[0].visited = 1; | |
403 | ||
711799d5 | 404 | while (!to_do.empty ()) |
bb2ec1b3 | 405 | { |
711799d5 TT |
406 | int ndx = to_do.back (); |
407 | to_do.pop_back (); | |
bb2ec1b3 TT |
408 | |
409 | compute_stack_depth_worker (ndx, need_tempvar, *info, &to_do, | |
410 | byte_order, addr_size, | |
411 | op_ptr, op_end); | |
412 | } | |
413 | ||
414 | stack_depth = 0; | |
415 | *is_tls = 0; | |
416 | for (i = 0; i < op_end - op_ptr; ++i) | |
417 | { | |
418 | if ((*info)[i].depth > stack_depth) | |
419 | stack_depth = (*info)[i].depth; | |
420 | if ((*info)[i].is_tls) | |
421 | *is_tls = 1; | |
422 | } | |
423 | ||
bb2ec1b3 TT |
424 | discard_cleanups (outer_cleanup); |
425 | return stack_depth + 1; | |
426 | } | |
427 | ||
428 | \f | |
429 | ||
430 | #define GCC_UINTPTR "__gdb_uintptr" | |
431 | #define GCC_INTPTR "__gdb_intptr" | |
432 | ||
433 | /* Emit code to push a constant. */ | |
434 | ||
435 | static void | |
d7e74731 | 436 | push (int indent, string_file &stream, ULONGEST l) |
bb2ec1b3 | 437 | { |
d7e74731 | 438 | fprintfi_filtered (indent, &stream, |
3a9558c4 | 439 | "__gdb_stack[++__gdb_tos] = (" GCC_UINTPTR ") %s;\n", |
bb2ec1b3 TT |
440 | hex_string (l)); |
441 | } | |
442 | ||
443 | /* Emit code to push an arbitrary expression. This works like | |
444 | printf. */ | |
445 | ||
d7e74731 | 446 | static void pushf (int indent, string_file &stream, const char *format, ...) |
77b64a49 PA |
447 | ATTRIBUTE_PRINTF (3, 4); |
448 | ||
bb2ec1b3 | 449 | static void |
d7e74731 | 450 | pushf (int indent, string_file &stream, const char *format, ...) |
bb2ec1b3 TT |
451 | { |
452 | va_list args; | |
453 | ||
d7e74731 | 454 | fprintfi_filtered (indent, &stream, "__gdb_stack[__gdb_tos + 1] = "); |
bb2ec1b3 | 455 | va_start (args, format); |
d7e74731 | 456 | stream.vprintf (format, args); |
bb2ec1b3 | 457 | va_end (args); |
d7e74731 | 458 | stream.puts (";\n"); |
bb2ec1b3 | 459 | |
d7e74731 | 460 | fprintfi_filtered (indent, &stream, "++__gdb_tos;\n"); |
bb2ec1b3 TT |
461 | } |
462 | ||
463 | /* Emit code for a unary expression -- one which operates in-place on | |
464 | the top-of-stack. This works like printf. */ | |
465 | ||
d7e74731 | 466 | static void unary (int indent, string_file &stream, const char *format, ...) |
77b64a49 PA |
467 | ATTRIBUTE_PRINTF (3, 4); |
468 | ||
bb2ec1b3 | 469 | static void |
d7e74731 | 470 | unary (int indent, string_file &stream, const char *format, ...) |
bb2ec1b3 TT |
471 | { |
472 | va_list args; | |
473 | ||
d7e74731 | 474 | fprintfi_filtered (indent, &stream, "__gdb_stack[__gdb_tos] = "); |
bb2ec1b3 | 475 | va_start (args, format); |
d7e74731 | 476 | stream.vprintf (format, args); |
bb2ec1b3 | 477 | va_end (args); |
d7e74731 | 478 | stream.puts (";\n"); |
bb2ec1b3 TT |
479 | } |
480 | ||
481 | /* Emit code for a unary expression -- one which uses the top two | |
482 | stack items, popping the topmost one. This works like printf. */ | |
d7e74731 | 483 | static void binary (int indent, string_file &stream, const char *format, ...) |
77b64a49 | 484 | ATTRIBUTE_PRINTF (3, 4); |
bb2ec1b3 TT |
485 | |
486 | static void | |
d7e74731 | 487 | binary (int indent, string_file &stream, const char *format, ...) |
bb2ec1b3 TT |
488 | { |
489 | va_list args; | |
490 | ||
d7e74731 | 491 | fprintfi_filtered (indent, &stream, "__gdb_stack[__gdb_tos - 1] = "); |
bb2ec1b3 | 492 | va_start (args, format); |
d7e74731 | 493 | stream.vprintf (format, args); |
bb2ec1b3 | 494 | va_end (args); |
d7e74731 PA |
495 | stream.puts (";\n"); |
496 | fprintfi_filtered (indent, &stream, "--__gdb_tos;\n"); | |
bb2ec1b3 TT |
497 | } |
498 | ||
499 | /* Print the name of a label given its "SCOPE", an arbitrary integer | |
500 | used for uniqueness, and its TARGET, the bytecode offset | |
501 | corresponding to the label's point of definition. */ | |
502 | ||
503 | static void | |
d7e74731 | 504 | print_label (string_file &stream, unsigned int scope, int target) |
bb2ec1b3 | 505 | { |
d7e74731 | 506 | stream.printf ("__label_%u_%s", scope, pulongest (target)); |
bb2ec1b3 TT |
507 | } |
508 | ||
509 | /* Emit code that pushes a register's address on the stack. | |
510 | REGISTERS_USED is an out parameter which is updated to note which | |
511 | register was needed by this expression. */ | |
512 | ||
513 | static void | |
d7e74731 | 514 | pushf_register_address (int indent, string_file &stream, |
bb2ec1b3 TT |
515 | unsigned char *registers_used, |
516 | struct gdbarch *gdbarch, int regnum) | |
517 | { | |
518 | char *regname = compile_register_name_mangled (gdbarch, regnum); | |
519 | struct cleanup *cleanups = make_cleanup (xfree, regname); | |
520 | ||
521 | registers_used[regnum] = 1; | |
3a9558c4 JK |
522 | pushf (indent, stream, |
523 | "(" GCC_UINTPTR ") &" COMPILE_I_SIMPLE_REGISTER_ARG_NAME "->%s", | |
bb2ec1b3 TT |
524 | regname); |
525 | ||
526 | do_cleanups (cleanups); | |
527 | } | |
528 | ||
529 | /* Emit code that pushes a register's value on the stack. | |
530 | REGISTERS_USED is an out parameter which is updated to note which | |
531 | register was needed by this expression. OFFSET is added to the | |
532 | register's value before it is pushed. */ | |
533 | ||
534 | static void | |
d7e74731 | 535 | pushf_register (int indent, string_file &stream, |
bb2ec1b3 TT |
536 | unsigned char *registers_used, |
537 | struct gdbarch *gdbarch, int regnum, uint64_t offset) | |
538 | { | |
539 | char *regname = compile_register_name_mangled (gdbarch, regnum); | |
540 | struct cleanup *cleanups = make_cleanup (xfree, regname); | |
541 | ||
542 | registers_used[regnum] = 1; | |
543 | if (offset == 0) | |
544 | pushf (indent, stream, COMPILE_I_SIMPLE_REGISTER_ARG_NAME "->%s", | |
545 | regname); | |
546 | else | |
3a9558c4 JK |
547 | pushf (indent, stream, |
548 | COMPILE_I_SIMPLE_REGISTER_ARG_NAME "->%s + (" GCC_UINTPTR ") %s", | |
bb2ec1b3 TT |
549 | regname, hex_string (offset)); |
550 | ||
551 | do_cleanups (cleanups); | |
552 | } | |
553 | ||
554 | /* Compile a DWARF expression to C code. | |
555 | ||
556 | INDENT is the indentation level to use. | |
557 | STREAM is the stream where the code should be written. | |
558 | ||
559 | TYPE_NAME names the type of the result of the DWARF expression. | |
560 | For locations this is "void *" but for array bounds it will be an | |
561 | integer type. | |
562 | ||
563 | RESULT_NAME is the name of a variable in the resulting C code. The | |
564 | result of the expression will be assigned to this variable. | |
565 | ||
566 | SYM is the symbol corresponding to this expression. | |
567 | PC is the location at which the expression is being evaluated. | |
568 | ARCH is the architecture to use. | |
569 | ||
570 | REGISTERS_USED is an out parameter which is updated to note which | |
571 | registers were needed by this expression. | |
572 | ||
573 | ADDR_SIZE is the DWARF address size to use. | |
574 | ||
575 | OPT_PTR and OP_END are the bounds of the DWARF expression. | |
576 | ||
577 | If non-NULL, INITIAL points to an initial value to write to the | |
578 | stack. If NULL, no initial value is written. | |
579 | ||
580 | PER_CU is the per-CU object used for looking up various other | |
581 | things. */ | |
582 | ||
583 | static void | |
d7e74731 | 584 | do_compile_dwarf_expr_to_c (int indent, string_file &stream, |
bb2ec1b3 TT |
585 | const char *type_name, |
586 | const char *result_name, | |
587 | struct symbol *sym, CORE_ADDR pc, | |
588 | struct gdbarch *arch, | |
589 | unsigned char *registers_used, | |
590 | unsigned int addr_size, | |
591 | const gdb_byte *op_ptr, const gdb_byte *op_end, | |
592 | CORE_ADDR *initial, | |
593 | struct dwarf2_per_cu_data *per_cu) | |
594 | { | |
595 | /* We keep a counter so that labels and other objects we create have | |
596 | unique names. */ | |
597 | static unsigned int scope; | |
598 | ||
599 | enum bfd_endian byte_order = gdbarch_byte_order (arch); | |
600 | const gdb_byte * const base = op_ptr; | |
601 | int need_tempvar = 0; | |
602 | int is_tls = 0; | |
603 | struct cleanup *cleanup; | |
604 | struct insn_info *info; | |
605 | int stack_depth; | |
606 | ||
607 | ++scope; | |
608 | ||
d7e74731 | 609 | fprintfi_filtered (indent, &stream, "__attribute__ ((unused)) %s %s;\n", |
3a9558c4 | 610 | type_name, result_name); |
d7e74731 | 611 | fprintfi_filtered (indent, &stream, "{\n"); |
bb2ec1b3 TT |
612 | indent += 2; |
613 | ||
614 | stack_depth = compute_stack_depth (byte_order, addr_size, | |
615 | &need_tempvar, &is_tls, | |
616 | op_ptr, op_end, initial != NULL, | |
617 | &info); | |
618 | cleanup = make_cleanup (xfree, info); | |
619 | ||
620 | /* This is a hack until we can add a feature to glibc to let us | |
621 | properly generate code for TLS. You might think we could emit | |
622 | the address in the ordinary course of translating | |
623 | DW_OP_GNU_push_tls_address, but since the operand appears on the | |
624 | stack, it is relatively hard to find, and the idea of calling | |
625 | target_translate_tls_address with OFFSET==0 and then adding the | |
626 | offset by hand seemed too hackish. */ | |
627 | if (is_tls) | |
628 | { | |
629 | struct frame_info *frame = get_selected_frame (NULL); | |
630 | struct value *val; | |
631 | ||
632 | if (frame == NULL) | |
633 | error (_("Symbol \"%s\" cannot be used because " | |
634 | "there is no selected frame"), | |
635 | SYMBOL_PRINT_NAME (sym)); | |
636 | ||
63e43d3a | 637 | val = read_var_value (sym, NULL, frame); |
bb2ec1b3 TT |
638 | if (VALUE_LVAL (val) != lval_memory) |
639 | error (_("Symbol \"%s\" cannot be used for compilation evaluation " | |
640 | "as its address has not been found."), | |
641 | SYMBOL_PRINT_NAME (sym)); | |
642 | ||
643 | warning (_("Symbol \"%s\" is thread-local and currently can only " | |
644 | "be referenced from the current thread in " | |
645 | "compiled code."), | |
646 | SYMBOL_PRINT_NAME (sym)); | |
647 | ||
d7e74731 | 648 | fprintfi_filtered (indent, &stream, "%s = %s;\n", |
bb2ec1b3 TT |
649 | result_name, |
650 | core_addr_to_string (value_address (val))); | |
d7e74731 | 651 | fprintfi_filtered (indent - 2, &stream, "}\n"); |
bb2ec1b3 TT |
652 | do_cleanups (cleanup); |
653 | return; | |
654 | } | |
655 | ||
d7e74731 | 656 | fprintfi_filtered (indent, &stream, GCC_UINTPTR " __gdb_stack[%d];\n", |
bb2ec1b3 TT |
657 | stack_depth); |
658 | ||
659 | if (need_tempvar) | |
d7e74731 PA |
660 | fprintfi_filtered (indent, &stream, GCC_UINTPTR " __gdb_tmp;\n"); |
661 | fprintfi_filtered (indent, &stream, "int __gdb_tos = -1;\n"); | |
bb2ec1b3 TT |
662 | |
663 | if (initial != NULL) | |
77b64a49 | 664 | pushf (indent, stream, "%s", core_addr_to_string (*initial)); |
bb2ec1b3 TT |
665 | |
666 | while (op_ptr < op_end) | |
667 | { | |
aead7601 | 668 | enum dwarf_location_atom op = (enum dwarf_location_atom) *op_ptr; |
bb2ec1b3 TT |
669 | uint64_t uoffset, reg; |
670 | int64_t offset; | |
671 | ||
d7e74731 | 672 | print_spaces (indent - 2, &stream); |
bb2ec1b3 TT |
673 | if (info[op_ptr - base].label) |
674 | { | |
675 | print_label (stream, scope, op_ptr - base); | |
d7e74731 | 676 | stream.puts (":;"); |
bb2ec1b3 | 677 | } |
d7e74731 | 678 | stream.printf ("/* %s */\n", get_DW_OP_name (op)); |
bb2ec1b3 TT |
679 | |
680 | /* This is handy for debugging the generated code: | |
681 | fprintf_filtered (stream, "if (__gdb_tos != %d) abort ();\n", | |
682 | (int) info[op_ptr - base].depth - 1); | |
683 | */ | |
684 | ||
685 | ++op_ptr; | |
686 | ||
687 | switch (op) | |
688 | { | |
689 | case DW_OP_lit0: | |
690 | case DW_OP_lit1: | |
691 | case DW_OP_lit2: | |
692 | case DW_OP_lit3: | |
693 | case DW_OP_lit4: | |
694 | case DW_OP_lit5: | |
695 | case DW_OP_lit6: | |
696 | case DW_OP_lit7: | |
697 | case DW_OP_lit8: | |
698 | case DW_OP_lit9: | |
699 | case DW_OP_lit10: | |
700 | case DW_OP_lit11: | |
701 | case DW_OP_lit12: | |
702 | case DW_OP_lit13: | |
703 | case DW_OP_lit14: | |
704 | case DW_OP_lit15: | |
705 | case DW_OP_lit16: | |
706 | case DW_OP_lit17: | |
707 | case DW_OP_lit18: | |
708 | case DW_OP_lit19: | |
709 | case DW_OP_lit20: | |
710 | case DW_OP_lit21: | |
711 | case DW_OP_lit22: | |
712 | case DW_OP_lit23: | |
713 | case DW_OP_lit24: | |
714 | case DW_OP_lit25: | |
715 | case DW_OP_lit26: | |
716 | case DW_OP_lit27: | |
717 | case DW_OP_lit28: | |
718 | case DW_OP_lit29: | |
719 | case DW_OP_lit30: | |
720 | case DW_OP_lit31: | |
721 | push (indent, stream, op - DW_OP_lit0); | |
722 | break; | |
723 | ||
724 | case DW_OP_addr: | |
725 | op_ptr += addr_size; | |
726 | /* Some versions of GCC emit DW_OP_addr before | |
727 | DW_OP_GNU_push_tls_address. In this case the value is an | |
728 | index, not an address. We don't support things like | |
729 | branching between the address and the TLS op. */ | |
730 | if (op_ptr >= op_end || *op_ptr != DW_OP_GNU_push_tls_address) | |
731 | uoffset += dwarf2_per_cu_text_offset (per_cu); | |
732 | push (indent, stream, uoffset); | |
733 | break; | |
734 | ||
735 | case DW_OP_const1u: | |
736 | push (indent, stream, | |
737 | extract_unsigned_integer (op_ptr, 1, byte_order)); | |
738 | op_ptr += 1; | |
739 | break; | |
740 | case DW_OP_const1s: | |
741 | push (indent, stream, | |
742 | extract_signed_integer (op_ptr, 1, byte_order)); | |
743 | op_ptr += 1; | |
744 | break; | |
745 | case DW_OP_const2u: | |
746 | push (indent, stream, | |
747 | extract_unsigned_integer (op_ptr, 2, byte_order)); | |
748 | op_ptr += 2; | |
749 | break; | |
750 | case DW_OP_const2s: | |
751 | push (indent, stream, | |
752 | extract_signed_integer (op_ptr, 2, byte_order)); | |
753 | op_ptr += 2; | |
754 | break; | |
755 | case DW_OP_const4u: | |
756 | push (indent, stream, | |
757 | extract_unsigned_integer (op_ptr, 4, byte_order)); | |
758 | op_ptr += 4; | |
759 | break; | |
760 | case DW_OP_const4s: | |
761 | push (indent, stream, | |
762 | extract_signed_integer (op_ptr, 4, byte_order)); | |
763 | op_ptr += 4; | |
764 | break; | |
765 | case DW_OP_const8u: | |
766 | push (indent, stream, | |
767 | extract_unsigned_integer (op_ptr, 8, byte_order)); | |
768 | op_ptr += 8; | |
769 | break; | |
770 | case DW_OP_const8s: | |
771 | push (indent, stream, | |
772 | extract_signed_integer (op_ptr, 8, byte_order)); | |
773 | op_ptr += 8; | |
774 | break; | |
775 | case DW_OP_constu: | |
776 | op_ptr = safe_read_uleb128 (op_ptr, op_end, &uoffset); | |
777 | push (indent, stream, uoffset); | |
778 | break; | |
779 | case DW_OP_consts: | |
780 | op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset); | |
781 | push (indent, stream, offset); | |
782 | break; | |
783 | ||
784 | case DW_OP_reg0: | |
785 | case DW_OP_reg1: | |
786 | case DW_OP_reg2: | |
787 | case DW_OP_reg3: | |
788 | case DW_OP_reg4: | |
789 | case DW_OP_reg5: | |
790 | case DW_OP_reg6: | |
791 | case DW_OP_reg7: | |
792 | case DW_OP_reg8: | |
793 | case DW_OP_reg9: | |
794 | case DW_OP_reg10: | |
795 | case DW_OP_reg11: | |
796 | case DW_OP_reg12: | |
797 | case DW_OP_reg13: | |
798 | case DW_OP_reg14: | |
799 | case DW_OP_reg15: | |
800 | case DW_OP_reg16: | |
801 | case DW_OP_reg17: | |
802 | case DW_OP_reg18: | |
803 | case DW_OP_reg19: | |
804 | case DW_OP_reg20: | |
805 | case DW_OP_reg21: | |
806 | case DW_OP_reg22: | |
807 | case DW_OP_reg23: | |
808 | case DW_OP_reg24: | |
809 | case DW_OP_reg25: | |
810 | case DW_OP_reg26: | |
811 | case DW_OP_reg27: | |
812 | case DW_OP_reg28: | |
813 | case DW_OP_reg29: | |
814 | case DW_OP_reg30: | |
815 | case DW_OP_reg31: | |
816 | dwarf_expr_require_composition (op_ptr, op_end, "DW_OP_regx"); | |
817 | pushf_register_address (indent, stream, registers_used, arch, | |
0fde2c53 DE |
818 | dwarf_reg_to_regnum_or_error |
819 | (arch, op - DW_OP_reg0)); | |
bb2ec1b3 TT |
820 | break; |
821 | ||
822 | case DW_OP_regx: | |
823 | op_ptr = safe_read_uleb128 (op_ptr, op_end, ®); | |
824 | dwarf_expr_require_composition (op_ptr, op_end, "DW_OP_regx"); | |
825 | pushf_register_address (indent, stream, registers_used, arch, | |
0fde2c53 | 826 | dwarf_reg_to_regnum_or_error (arch, reg)); |
bb2ec1b3 TT |
827 | break; |
828 | ||
829 | case DW_OP_breg0: | |
830 | case DW_OP_breg1: | |
831 | case DW_OP_breg2: | |
832 | case DW_OP_breg3: | |
833 | case DW_OP_breg4: | |
834 | case DW_OP_breg5: | |
835 | case DW_OP_breg6: | |
836 | case DW_OP_breg7: | |
837 | case DW_OP_breg8: | |
838 | case DW_OP_breg9: | |
839 | case DW_OP_breg10: | |
840 | case DW_OP_breg11: | |
841 | case DW_OP_breg12: | |
842 | case DW_OP_breg13: | |
843 | case DW_OP_breg14: | |
844 | case DW_OP_breg15: | |
845 | case DW_OP_breg16: | |
846 | case DW_OP_breg17: | |
847 | case DW_OP_breg18: | |
848 | case DW_OP_breg19: | |
849 | case DW_OP_breg20: | |
850 | case DW_OP_breg21: | |
851 | case DW_OP_breg22: | |
852 | case DW_OP_breg23: | |
853 | case DW_OP_breg24: | |
854 | case DW_OP_breg25: | |
855 | case DW_OP_breg26: | |
856 | case DW_OP_breg27: | |
857 | case DW_OP_breg28: | |
858 | case DW_OP_breg29: | |
859 | case DW_OP_breg30: | |
860 | case DW_OP_breg31: | |
861 | op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset); | |
862 | pushf_register (indent, stream, registers_used, arch, | |
0fde2c53 DE |
863 | dwarf_reg_to_regnum_or_error (arch, |
864 | op - DW_OP_breg0), | |
bb2ec1b3 TT |
865 | offset); |
866 | break; | |
867 | case DW_OP_bregx: | |
868 | { | |
869 | op_ptr = safe_read_uleb128 (op_ptr, op_end, ®); | |
870 | op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset); | |
871 | pushf_register (indent, stream, registers_used, arch, | |
0fde2c53 | 872 | dwarf_reg_to_regnum_or_error (arch, reg), offset); |
bb2ec1b3 TT |
873 | } |
874 | break; | |
875 | case DW_OP_fbreg: | |
876 | { | |
877 | const gdb_byte *datastart; | |
878 | size_t datalen; | |
879 | const struct block *b; | |
880 | struct symbol *framefunc; | |
881 | char fb_name[50]; | |
882 | ||
883 | b = block_for_pc (pc); | |
884 | ||
885 | if (!b) | |
886 | error (_("No block found for address")); | |
887 | ||
888 | framefunc = block_linkage_function (b); | |
889 | ||
890 | if (!framefunc) | |
891 | error (_("No function found for block")); | |
892 | ||
893 | func_get_frame_base_dwarf_block (framefunc, pc, | |
894 | &datastart, &datalen); | |
895 | ||
896 | op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset); | |
897 | ||
898 | /* Generate a unique-enough name, in case the frame base | |
899 | is computed multiple times in this expression. */ | |
900 | xsnprintf (fb_name, sizeof (fb_name), "__frame_base_%ld", | |
901 | (long) (op_ptr - base)); | |
902 | ||
903 | do_compile_dwarf_expr_to_c (indent, stream, | |
3a9558c4 | 904 | GCC_UINTPTR, fb_name, |
bb2ec1b3 TT |
905 | sym, pc, |
906 | arch, registers_used, addr_size, | |
907 | datastart, datastart + datalen, | |
908 | NULL, per_cu); | |
909 | ||
910 | pushf (indent, stream, "%s + %s", fb_name, hex_string (offset)); | |
911 | } | |
912 | break; | |
913 | ||
914 | case DW_OP_dup: | |
915 | pushf (indent, stream, "__gdb_stack[__gdb_tos]"); | |
916 | break; | |
917 | ||
918 | case DW_OP_drop: | |
d7e74731 | 919 | fprintfi_filtered (indent, &stream, "--__gdb_tos;\n"); |
bb2ec1b3 TT |
920 | break; |
921 | ||
922 | case DW_OP_pick: | |
923 | offset = *op_ptr++; | |
77b64a49 PA |
924 | pushf (indent, stream, "__gdb_stack[__gdb_tos - %s]", |
925 | plongest (offset)); | |
bb2ec1b3 TT |
926 | break; |
927 | ||
928 | case DW_OP_swap: | |
d7e74731 | 929 | fprintfi_filtered (indent, &stream, |
bb2ec1b3 | 930 | "__gdb_tmp = __gdb_stack[__gdb_tos - 1];\n"); |
d7e74731 | 931 | fprintfi_filtered (indent, &stream, |
bb2ec1b3 TT |
932 | "__gdb_stack[__gdb_tos - 1] = " |
933 | "__gdb_stack[__gdb_tos];\n"); | |
d7e74731 PA |
934 | fprintfi_filtered (indent, &stream, ("__gdb_stack[__gdb_tos] = " |
935 | "__gdb_tmp;\n")); | |
bb2ec1b3 TT |
936 | break; |
937 | ||
938 | case DW_OP_over: | |
939 | pushf (indent, stream, "__gdb_stack[__gdb_tos - 1]"); | |
940 | break; | |
941 | ||
942 | case DW_OP_rot: | |
d7e74731 PA |
943 | fprintfi_filtered (indent, &stream, ("__gdb_tmp = " |
944 | "__gdb_stack[__gdb_tos];\n")); | |
945 | fprintfi_filtered (indent, &stream, | |
bb2ec1b3 TT |
946 | "__gdb_stack[__gdb_tos] = " |
947 | "__gdb_stack[__gdb_tos - 1];\n"); | |
d7e74731 | 948 | fprintfi_filtered (indent, &stream, |
bb2ec1b3 TT |
949 | "__gdb_stack[__gdb_tos - 1] = " |
950 | "__gdb_stack[__gdb_tos -2];\n"); | |
d7e74731 | 951 | fprintfi_filtered (indent, &stream, "__gdb_stack[__gdb_tos - 2] = " |
bb2ec1b3 TT |
952 | "__gdb_tmp;\n"); |
953 | break; | |
954 | ||
955 | case DW_OP_deref: | |
956 | case DW_OP_deref_size: | |
957 | { | |
958 | int size; | |
959 | const char *mode; | |
960 | ||
961 | if (op == DW_OP_deref_size) | |
962 | size = *op_ptr++; | |
963 | else | |
964 | size = addr_size; | |
965 | ||
966 | mode = c_get_mode_for_size (size); | |
967 | if (mode == NULL) | |
968 | error (_("Unsupported size %d in %s"), | |
969 | size, get_DW_OP_name (op)); | |
970 | ||
971 | /* Cast to a pointer of the desired type, then | |
972 | dereference. */ | |
d7e74731 | 973 | fprintfi_filtered (indent, &stream, |
bb2ec1b3 TT |
974 | "__gdb_stack[__gdb_tos] = " |
975 | "*((__gdb_int_%s *) " | |
976 | "__gdb_stack[__gdb_tos]);\n", | |
977 | mode); | |
978 | } | |
979 | break; | |
980 | ||
981 | case DW_OP_abs: | |
982 | unary (indent, stream, | |
983 | "((" GCC_INTPTR ") __gdb_stack[__gdb_tos]) < 0 ? " | |
984 | "-__gdb_stack[__gdb_tos] : __gdb_stack[__gdb_tos]"); | |
985 | break; | |
986 | ||
987 | case DW_OP_neg: | |
988 | unary (indent, stream, "-__gdb_stack[__gdb_tos]"); | |
989 | break; | |
990 | ||
991 | case DW_OP_not: | |
992 | unary (indent, stream, "~__gdb_stack[__gdb_tos]"); | |
993 | break; | |
994 | ||
995 | case DW_OP_plus_uconst: | |
996 | op_ptr = safe_read_uleb128 (op_ptr, op_end, ®); | |
997 | unary (indent, stream, "__gdb_stack[__gdb_tos] + %s", | |
998 | hex_string (reg)); | |
999 | break; | |
1000 | ||
1001 | case DW_OP_div: | |
1002 | binary (indent, stream, ("((" GCC_INTPTR | |
1003 | ") __gdb_stack[__gdb_tos-1]) / ((" | |
1004 | GCC_INTPTR ") __gdb_stack[__gdb_tos])")); | |
1005 | break; | |
1006 | ||
1007 | case DW_OP_shra: | |
1008 | binary (indent, stream, | |
1009 | "((" GCC_INTPTR ") __gdb_stack[__gdb_tos-1]) >> " | |
1010 | "__gdb_stack[__gdb_tos]"); | |
1011 | break; | |
1012 | ||
1013 | #define BINARY(OP) \ | |
77b64a49 PA |
1014 | binary (indent, stream, "%s", "__gdb_stack[__gdb_tos-1] " #OP \ |
1015 | " __gdb_stack[__gdb_tos]"); \ | |
bb2ec1b3 TT |
1016 | break |
1017 | ||
1018 | case DW_OP_and: | |
1019 | BINARY (&); | |
1020 | case DW_OP_minus: | |
1021 | BINARY (-); | |
1022 | case DW_OP_mod: | |
1023 | BINARY (%); | |
1024 | case DW_OP_mul: | |
1025 | BINARY (*); | |
1026 | case DW_OP_or: | |
1027 | BINARY (|); | |
1028 | case DW_OP_plus: | |
1029 | BINARY (+); | |
1030 | case DW_OP_shl: | |
1031 | BINARY (<<); | |
1032 | case DW_OP_shr: | |
1033 | BINARY (>>); | |
1034 | case DW_OP_xor: | |
1035 | BINARY (^); | |
1036 | #undef BINARY | |
1037 | ||
1038 | #define COMPARE(OP) \ | |
1039 | binary (indent, stream, \ | |
1040 | "(((" GCC_INTPTR ") __gdb_stack[__gdb_tos-1]) " #OP \ | |
1041 | " ((" GCC_INTPTR \ | |
1042 | ") __gdb_stack[__gdb_tos]))"); \ | |
1043 | break | |
1044 | ||
1045 | case DW_OP_le: | |
1046 | COMPARE (<=); | |
1047 | case DW_OP_ge: | |
1048 | COMPARE (>=); | |
1049 | case DW_OP_eq: | |
1050 | COMPARE (==); | |
1051 | case DW_OP_lt: | |
1052 | COMPARE (<); | |
1053 | case DW_OP_gt: | |
1054 | COMPARE (>); | |
1055 | case DW_OP_ne: | |
1056 | COMPARE (!=); | |
1057 | #undef COMPARE | |
1058 | ||
1059 | case DW_OP_call_frame_cfa: | |
1060 | { | |
1061 | int regnum; | |
1062 | CORE_ADDR text_offset; | |
1063 | LONGEST off; | |
1064 | const gdb_byte *cfa_start, *cfa_end; | |
1065 | ||
1066 | if (dwarf2_fetch_cfa_info (arch, pc, per_cu, | |
1067 | ®num, &off, | |
1068 | &text_offset, &cfa_start, &cfa_end)) | |
1069 | { | |
1070 | /* Register. */ | |
1071 | pushf_register (indent, stream, registers_used, arch, regnum, | |
1072 | off); | |
1073 | } | |
1074 | else | |
1075 | { | |
1076 | /* Another expression. */ | |
1077 | char cfa_name[50]; | |
1078 | ||
1079 | /* Generate a unique-enough name, in case the CFA is | |
1080 | computed multiple times in this expression. */ | |
1081 | xsnprintf (cfa_name, sizeof (cfa_name), | |
1082 | "__cfa_%ld", (long) (op_ptr - base)); | |
1083 | ||
1084 | do_compile_dwarf_expr_to_c (indent, stream, | |
3a9558c4 | 1085 | GCC_UINTPTR, cfa_name, |
bb2ec1b3 TT |
1086 | sym, pc, arch, registers_used, |
1087 | addr_size, | |
1088 | cfa_start, cfa_end, | |
1089 | &text_offset, per_cu); | |
77b64a49 | 1090 | pushf (indent, stream, "%s", cfa_name); |
bb2ec1b3 TT |
1091 | } |
1092 | } | |
1093 | ||
1094 | break; | |
1095 | ||
1096 | case DW_OP_skip: | |
1097 | offset = extract_signed_integer (op_ptr, 2, byte_order); | |
1098 | op_ptr += 2; | |
d7e74731 | 1099 | fprintfi_filtered (indent, &stream, "goto "); |
bb2ec1b3 | 1100 | print_label (stream, scope, op_ptr + offset - base); |
d7e74731 | 1101 | stream.puts (";\n"); |
bb2ec1b3 TT |
1102 | break; |
1103 | ||
1104 | case DW_OP_bra: | |
1105 | offset = extract_signed_integer (op_ptr, 2, byte_order); | |
1106 | op_ptr += 2; | |
d7e74731 | 1107 | fprintfi_filtered (indent, &stream, |
bb2ec1b3 TT |
1108 | "if ((( " GCC_INTPTR |
1109 | ") __gdb_stack[__gdb_tos--]) != 0) goto "); | |
1110 | print_label (stream, scope, op_ptr + offset - base); | |
d7e74731 | 1111 | stream.puts (";\n"); |
bb2ec1b3 TT |
1112 | break; |
1113 | ||
1114 | case DW_OP_nop: | |
1115 | break; | |
1116 | ||
1117 | default: | |
1118 | error (_("unhandled DWARF op: %s"), get_DW_OP_name (op)); | |
1119 | } | |
1120 | } | |
1121 | ||
d7e74731 | 1122 | fprintfi_filtered (indent, &stream, "%s = __gdb_stack[__gdb_tos];\n", |
3a9558c4 | 1123 | result_name); |
d7e74731 | 1124 | fprintfi_filtered (indent - 2, &stream, "}\n"); |
bb2ec1b3 TT |
1125 | |
1126 | do_cleanups (cleanup); | |
1127 | } | |
1128 | ||
1129 | /* See compile.h. */ | |
1130 | ||
1131 | void | |
d7e74731 | 1132 | compile_dwarf_expr_to_c (string_file &stream, const char *result_name, |
bb2ec1b3 TT |
1133 | struct symbol *sym, CORE_ADDR pc, |
1134 | struct gdbarch *arch, unsigned char *registers_used, | |
1135 | unsigned int addr_size, | |
1136 | const gdb_byte *op_ptr, const gdb_byte *op_end, | |
1137 | struct dwarf2_per_cu_data *per_cu) | |
1138 | { | |
3a9558c4 | 1139 | do_compile_dwarf_expr_to_c (2, stream, GCC_UINTPTR, result_name, sym, pc, |
bb2ec1b3 TT |
1140 | arch, registers_used, addr_size, op_ptr, op_end, |
1141 | NULL, per_cu); | |
1142 | } | |
1143 | ||
1144 | /* See compile.h. */ | |
1145 | ||
1146 | void | |
d7e74731 | 1147 | compile_dwarf_bounds_to_c (string_file &stream, |
bb2ec1b3 TT |
1148 | const char *result_name, |
1149 | const struct dynamic_prop *prop, | |
1150 | struct symbol *sym, CORE_ADDR pc, | |
1151 | struct gdbarch *arch, unsigned char *registers_used, | |
1152 | unsigned int addr_size, | |
1153 | const gdb_byte *op_ptr, const gdb_byte *op_end, | |
1154 | struct dwarf2_per_cu_data *per_cu) | |
1155 | { | |
1156 | do_compile_dwarf_expr_to_c (2, stream, "unsigned long ", result_name, | |
1157 | sym, pc, arch, registers_used, | |
1158 | addr_size, op_ptr, op_end, NULL, per_cu); | |
1159 | } |