Commit | Line | Data |
---|---|---|
bb2ec1b3 TT |
1 | /* Convert a DWARF location expression to C |
2 | ||
618f726f | 3 | Copyright (C) 2014-2016 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, | |
75 | VEC (int) **to_do, | |
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) | |
337 | VEC_safe_push (int, *to_do, offset); | |
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) | |
351 | VEC_safe_push (int, *to_do, offset); | |
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; | |
393 | struct cleanup *outer_cleanup, *cleanup; | |
394 | VEC (int) *to_do = NULL; | |
395 | int stack_depth, i; | |
396 | ||
397 | *info = XCNEWVEC (struct insn_info, op_end - op_ptr); | |
398 | outer_cleanup = make_cleanup (xfree, *info); | |
399 | ||
400 | cleanup = make_cleanup (VEC_cleanup (int), &to_do); | |
401 | ||
402 | VEC_safe_push (int, to_do, 0); | |
403 | (*info)[0].depth = initial_depth; | |
404 | (*info)[0].visited = 1; | |
405 | ||
406 | while (!VEC_empty (int, to_do)) | |
407 | { | |
408 | int ndx = VEC_pop (int, to_do); | |
409 | ||
410 | compute_stack_depth_worker (ndx, need_tempvar, *info, &to_do, | |
411 | byte_order, addr_size, | |
412 | op_ptr, op_end); | |
413 | } | |
414 | ||
415 | stack_depth = 0; | |
416 | *is_tls = 0; | |
417 | for (i = 0; i < op_end - op_ptr; ++i) | |
418 | { | |
419 | if ((*info)[i].depth > stack_depth) | |
420 | stack_depth = (*info)[i].depth; | |
421 | if ((*info)[i].is_tls) | |
422 | *is_tls = 1; | |
423 | } | |
424 | ||
425 | do_cleanups (cleanup); | |
426 | discard_cleanups (outer_cleanup); | |
427 | return stack_depth + 1; | |
428 | } | |
429 | ||
430 | \f | |
431 | ||
432 | #define GCC_UINTPTR "__gdb_uintptr" | |
433 | #define GCC_INTPTR "__gdb_intptr" | |
434 | ||
435 | /* Emit code to push a constant. */ | |
436 | ||
437 | static void | |
438 | push (int indent, struct ui_file *stream, ULONGEST l) | |
439 | { | |
3a9558c4 JK |
440 | fprintfi_filtered (indent, stream, |
441 | "__gdb_stack[++__gdb_tos] = (" GCC_UINTPTR ") %s;\n", | |
bb2ec1b3 TT |
442 | hex_string (l)); |
443 | } | |
444 | ||
445 | /* Emit code to push an arbitrary expression. This works like | |
446 | printf. */ | |
447 | ||
77b64a49 PA |
448 | static void pushf (int indent, struct ui_file *stream, const char *format, ...) |
449 | ATTRIBUTE_PRINTF (3, 4); | |
450 | ||
bb2ec1b3 TT |
451 | static void |
452 | pushf (int indent, struct ui_file *stream, const char *format, ...) | |
453 | { | |
454 | va_list args; | |
455 | ||
456 | fprintfi_filtered (indent, stream, "__gdb_stack[__gdb_tos + 1] = "); | |
457 | va_start (args, format); | |
458 | vfprintf_filtered (stream, format, args); | |
459 | va_end (args); | |
460 | fprintf_filtered (stream, ";\n"); | |
461 | ||
462 | fprintfi_filtered (indent, stream, "++__gdb_tos;\n"); | |
463 | } | |
464 | ||
465 | /* Emit code for a unary expression -- one which operates in-place on | |
466 | the top-of-stack. This works like printf. */ | |
467 | ||
77b64a49 PA |
468 | static void unary (int indent, struct ui_file *stream, const char *format, ...) |
469 | ATTRIBUTE_PRINTF (3, 4); | |
470 | ||
bb2ec1b3 TT |
471 | static void |
472 | unary (int indent, struct ui_file *stream, const char *format, ...) | |
473 | { | |
474 | va_list args; | |
475 | ||
476 | fprintfi_filtered (indent, stream, "__gdb_stack[__gdb_tos] = "); | |
477 | va_start (args, format); | |
478 | vfprintf_filtered (stream, format, args); | |
479 | va_end (args); | |
480 | fprintf_filtered (stream, ";\n"); | |
481 | } | |
482 | ||
483 | /* Emit code for a unary expression -- one which uses the top two | |
484 | stack items, popping the topmost one. This works like printf. */ | |
77b64a49 PA |
485 | static void binary (int indent, struct ui_file *stream, const char *format, ...) |
486 | ATTRIBUTE_PRINTF (3, 4); | |
bb2ec1b3 TT |
487 | |
488 | static void | |
489 | binary (int indent, struct ui_file *stream, const char *format, ...) | |
490 | { | |
491 | va_list args; | |
492 | ||
493 | fprintfi_filtered (indent, stream, "__gdb_stack[__gdb_tos - 1] = "); | |
494 | va_start (args, format); | |
495 | vfprintf_filtered (stream, format, args); | |
496 | va_end (args); | |
497 | fprintf_filtered (stream, ";\n"); | |
498 | fprintfi_filtered (indent, stream, "--__gdb_tos;\n"); | |
499 | } | |
500 | ||
501 | /* Print the name of a label given its "SCOPE", an arbitrary integer | |
502 | used for uniqueness, and its TARGET, the bytecode offset | |
503 | corresponding to the label's point of definition. */ | |
504 | ||
505 | static void | |
506 | print_label (struct ui_file *stream, unsigned int scope, int target) | |
507 | { | |
508 | fprintf_filtered (stream, "__label_%u_%s", | |
509 | scope, pulongest (target)); | |
510 | } | |
511 | ||
512 | /* Emit code that pushes a register's address on the stack. | |
513 | REGISTERS_USED is an out parameter which is updated to note which | |
514 | register was needed by this expression. */ | |
515 | ||
516 | static void | |
517 | pushf_register_address (int indent, struct ui_file *stream, | |
518 | unsigned char *registers_used, | |
519 | struct gdbarch *gdbarch, int regnum) | |
520 | { | |
521 | char *regname = compile_register_name_mangled (gdbarch, regnum); | |
522 | struct cleanup *cleanups = make_cleanup (xfree, regname); | |
523 | ||
524 | registers_used[regnum] = 1; | |
3a9558c4 JK |
525 | pushf (indent, stream, |
526 | "(" GCC_UINTPTR ") &" COMPILE_I_SIMPLE_REGISTER_ARG_NAME "->%s", | |
bb2ec1b3 TT |
527 | regname); |
528 | ||
529 | do_cleanups (cleanups); | |
530 | } | |
531 | ||
532 | /* Emit code that pushes a register's value on the stack. | |
533 | REGISTERS_USED is an out parameter which is updated to note which | |
534 | register was needed by this expression. OFFSET is added to the | |
535 | register's value before it is pushed. */ | |
536 | ||
537 | static void | |
538 | pushf_register (int indent, struct ui_file *stream, | |
539 | unsigned char *registers_used, | |
540 | struct gdbarch *gdbarch, int regnum, uint64_t offset) | |
541 | { | |
542 | char *regname = compile_register_name_mangled (gdbarch, regnum); | |
543 | struct cleanup *cleanups = make_cleanup (xfree, regname); | |
544 | ||
545 | registers_used[regnum] = 1; | |
546 | if (offset == 0) | |
547 | pushf (indent, stream, COMPILE_I_SIMPLE_REGISTER_ARG_NAME "->%s", | |
548 | regname); | |
549 | else | |
3a9558c4 JK |
550 | pushf (indent, stream, |
551 | COMPILE_I_SIMPLE_REGISTER_ARG_NAME "->%s + (" GCC_UINTPTR ") %s", | |
bb2ec1b3 TT |
552 | regname, hex_string (offset)); |
553 | ||
554 | do_cleanups (cleanups); | |
555 | } | |
556 | ||
557 | /* Compile a DWARF expression to C code. | |
558 | ||
559 | INDENT is the indentation level to use. | |
560 | STREAM is the stream where the code should be written. | |
561 | ||
562 | TYPE_NAME names the type of the result of the DWARF expression. | |
563 | For locations this is "void *" but for array bounds it will be an | |
564 | integer type. | |
565 | ||
566 | RESULT_NAME is the name of a variable in the resulting C code. The | |
567 | result of the expression will be assigned to this variable. | |
568 | ||
569 | SYM is the symbol corresponding to this expression. | |
570 | PC is the location at which the expression is being evaluated. | |
571 | ARCH is the architecture to use. | |
572 | ||
573 | REGISTERS_USED is an out parameter which is updated to note which | |
574 | registers were needed by this expression. | |
575 | ||
576 | ADDR_SIZE is the DWARF address size to use. | |
577 | ||
578 | OPT_PTR and OP_END are the bounds of the DWARF expression. | |
579 | ||
580 | If non-NULL, INITIAL points to an initial value to write to the | |
581 | stack. If NULL, no initial value is written. | |
582 | ||
583 | PER_CU is the per-CU object used for looking up various other | |
584 | things. */ | |
585 | ||
586 | static void | |
587 | do_compile_dwarf_expr_to_c (int indent, struct ui_file *stream, | |
588 | const char *type_name, | |
589 | const char *result_name, | |
590 | struct symbol *sym, CORE_ADDR pc, | |
591 | struct gdbarch *arch, | |
592 | unsigned char *registers_used, | |
593 | unsigned int addr_size, | |
594 | const gdb_byte *op_ptr, const gdb_byte *op_end, | |
595 | CORE_ADDR *initial, | |
596 | struct dwarf2_per_cu_data *per_cu) | |
597 | { | |
598 | /* We keep a counter so that labels and other objects we create have | |
599 | unique names. */ | |
600 | static unsigned int scope; | |
601 | ||
602 | enum bfd_endian byte_order = gdbarch_byte_order (arch); | |
603 | const gdb_byte * const base = op_ptr; | |
604 | int need_tempvar = 0; | |
605 | int is_tls = 0; | |
606 | struct cleanup *cleanup; | |
607 | struct insn_info *info; | |
608 | int stack_depth; | |
609 | ||
610 | ++scope; | |
611 | ||
3a9558c4 JK |
612 | fprintfi_filtered (indent, stream, "__attribute__ ((unused)) %s %s;\n", |
613 | type_name, result_name); | |
bb2ec1b3 TT |
614 | fprintfi_filtered (indent, stream, "{\n"); |
615 | indent += 2; | |
616 | ||
617 | stack_depth = compute_stack_depth (byte_order, addr_size, | |
618 | &need_tempvar, &is_tls, | |
619 | op_ptr, op_end, initial != NULL, | |
620 | &info); | |
621 | cleanup = make_cleanup (xfree, info); | |
622 | ||
623 | /* This is a hack until we can add a feature to glibc to let us | |
624 | properly generate code for TLS. You might think we could emit | |
625 | the address in the ordinary course of translating | |
626 | DW_OP_GNU_push_tls_address, but since the operand appears on the | |
627 | stack, it is relatively hard to find, and the idea of calling | |
628 | target_translate_tls_address with OFFSET==0 and then adding the | |
629 | offset by hand seemed too hackish. */ | |
630 | if (is_tls) | |
631 | { | |
632 | struct frame_info *frame = get_selected_frame (NULL); | |
633 | struct value *val; | |
634 | ||
635 | if (frame == NULL) | |
636 | error (_("Symbol \"%s\" cannot be used because " | |
637 | "there is no selected frame"), | |
638 | SYMBOL_PRINT_NAME (sym)); | |
639 | ||
63e43d3a | 640 | val = read_var_value (sym, NULL, frame); |
bb2ec1b3 TT |
641 | if (VALUE_LVAL (val) != lval_memory) |
642 | error (_("Symbol \"%s\" cannot be used for compilation evaluation " | |
643 | "as its address has not been found."), | |
644 | SYMBOL_PRINT_NAME (sym)); | |
645 | ||
646 | warning (_("Symbol \"%s\" is thread-local and currently can only " | |
647 | "be referenced from the current thread in " | |
648 | "compiled code."), | |
649 | SYMBOL_PRINT_NAME (sym)); | |
650 | ||
651 | fprintfi_filtered (indent, stream, "%s = %s;\n", | |
652 | result_name, | |
653 | core_addr_to_string (value_address (val))); | |
654 | fprintfi_filtered (indent - 2, stream, "}\n"); | |
655 | do_cleanups (cleanup); | |
656 | return; | |
657 | } | |
658 | ||
659 | fprintfi_filtered (indent, stream, GCC_UINTPTR " __gdb_stack[%d];\n", | |
660 | stack_depth); | |
661 | ||
662 | if (need_tempvar) | |
663 | fprintfi_filtered (indent, stream, GCC_UINTPTR " __gdb_tmp;\n"); | |
664 | fprintfi_filtered (indent, stream, "int __gdb_tos = -1;\n"); | |
665 | ||
666 | if (initial != NULL) | |
77b64a49 | 667 | pushf (indent, stream, "%s", core_addr_to_string (*initial)); |
bb2ec1b3 TT |
668 | |
669 | while (op_ptr < op_end) | |
670 | { | |
aead7601 | 671 | enum dwarf_location_atom op = (enum dwarf_location_atom) *op_ptr; |
bb2ec1b3 TT |
672 | uint64_t uoffset, reg; |
673 | int64_t offset; | |
674 | ||
675 | print_spaces (indent - 2, stream); | |
676 | if (info[op_ptr - base].label) | |
677 | { | |
678 | print_label (stream, scope, op_ptr - base); | |
679 | fprintf_filtered (stream, ":;"); | |
680 | } | |
681 | fprintf_filtered (stream, "/* %s */\n", get_DW_OP_name (op)); | |
682 | ||
683 | /* This is handy for debugging the generated code: | |
684 | fprintf_filtered (stream, "if (__gdb_tos != %d) abort ();\n", | |
685 | (int) info[op_ptr - base].depth - 1); | |
686 | */ | |
687 | ||
688 | ++op_ptr; | |
689 | ||
690 | switch (op) | |
691 | { | |
692 | case DW_OP_lit0: | |
693 | case DW_OP_lit1: | |
694 | case DW_OP_lit2: | |
695 | case DW_OP_lit3: | |
696 | case DW_OP_lit4: | |
697 | case DW_OP_lit5: | |
698 | case DW_OP_lit6: | |
699 | case DW_OP_lit7: | |
700 | case DW_OP_lit8: | |
701 | case DW_OP_lit9: | |
702 | case DW_OP_lit10: | |
703 | case DW_OP_lit11: | |
704 | case DW_OP_lit12: | |
705 | case DW_OP_lit13: | |
706 | case DW_OP_lit14: | |
707 | case DW_OP_lit15: | |
708 | case DW_OP_lit16: | |
709 | case DW_OP_lit17: | |
710 | case DW_OP_lit18: | |
711 | case DW_OP_lit19: | |
712 | case DW_OP_lit20: | |
713 | case DW_OP_lit21: | |
714 | case DW_OP_lit22: | |
715 | case DW_OP_lit23: | |
716 | case DW_OP_lit24: | |
717 | case DW_OP_lit25: | |
718 | case DW_OP_lit26: | |
719 | case DW_OP_lit27: | |
720 | case DW_OP_lit28: | |
721 | case DW_OP_lit29: | |
722 | case DW_OP_lit30: | |
723 | case DW_OP_lit31: | |
724 | push (indent, stream, op - DW_OP_lit0); | |
725 | break; | |
726 | ||
727 | case DW_OP_addr: | |
728 | op_ptr += addr_size; | |
729 | /* Some versions of GCC emit DW_OP_addr before | |
730 | DW_OP_GNU_push_tls_address. In this case the value is an | |
731 | index, not an address. We don't support things like | |
732 | branching between the address and the TLS op. */ | |
733 | if (op_ptr >= op_end || *op_ptr != DW_OP_GNU_push_tls_address) | |
734 | uoffset += dwarf2_per_cu_text_offset (per_cu); | |
735 | push (indent, stream, uoffset); | |
736 | break; | |
737 | ||
738 | case DW_OP_const1u: | |
739 | push (indent, stream, | |
740 | extract_unsigned_integer (op_ptr, 1, byte_order)); | |
741 | op_ptr += 1; | |
742 | break; | |
743 | case DW_OP_const1s: | |
744 | push (indent, stream, | |
745 | extract_signed_integer (op_ptr, 1, byte_order)); | |
746 | op_ptr += 1; | |
747 | break; | |
748 | case DW_OP_const2u: | |
749 | push (indent, stream, | |
750 | extract_unsigned_integer (op_ptr, 2, byte_order)); | |
751 | op_ptr += 2; | |
752 | break; | |
753 | case DW_OP_const2s: | |
754 | push (indent, stream, | |
755 | extract_signed_integer (op_ptr, 2, byte_order)); | |
756 | op_ptr += 2; | |
757 | break; | |
758 | case DW_OP_const4u: | |
759 | push (indent, stream, | |
760 | extract_unsigned_integer (op_ptr, 4, byte_order)); | |
761 | op_ptr += 4; | |
762 | break; | |
763 | case DW_OP_const4s: | |
764 | push (indent, stream, | |
765 | extract_signed_integer (op_ptr, 4, byte_order)); | |
766 | op_ptr += 4; | |
767 | break; | |
768 | case DW_OP_const8u: | |
769 | push (indent, stream, | |
770 | extract_unsigned_integer (op_ptr, 8, byte_order)); | |
771 | op_ptr += 8; | |
772 | break; | |
773 | case DW_OP_const8s: | |
774 | push (indent, stream, | |
775 | extract_signed_integer (op_ptr, 8, byte_order)); | |
776 | op_ptr += 8; | |
777 | break; | |
778 | case DW_OP_constu: | |
779 | op_ptr = safe_read_uleb128 (op_ptr, op_end, &uoffset); | |
780 | push (indent, stream, uoffset); | |
781 | break; | |
782 | case DW_OP_consts: | |
783 | op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset); | |
784 | push (indent, stream, offset); | |
785 | break; | |
786 | ||
787 | case DW_OP_reg0: | |
788 | case DW_OP_reg1: | |
789 | case DW_OP_reg2: | |
790 | case DW_OP_reg3: | |
791 | case DW_OP_reg4: | |
792 | case DW_OP_reg5: | |
793 | case DW_OP_reg6: | |
794 | case DW_OP_reg7: | |
795 | case DW_OP_reg8: | |
796 | case DW_OP_reg9: | |
797 | case DW_OP_reg10: | |
798 | case DW_OP_reg11: | |
799 | case DW_OP_reg12: | |
800 | case DW_OP_reg13: | |
801 | case DW_OP_reg14: | |
802 | case DW_OP_reg15: | |
803 | case DW_OP_reg16: | |
804 | case DW_OP_reg17: | |
805 | case DW_OP_reg18: | |
806 | case DW_OP_reg19: | |
807 | case DW_OP_reg20: | |
808 | case DW_OP_reg21: | |
809 | case DW_OP_reg22: | |
810 | case DW_OP_reg23: | |
811 | case DW_OP_reg24: | |
812 | case DW_OP_reg25: | |
813 | case DW_OP_reg26: | |
814 | case DW_OP_reg27: | |
815 | case DW_OP_reg28: | |
816 | case DW_OP_reg29: | |
817 | case DW_OP_reg30: | |
818 | case DW_OP_reg31: | |
819 | dwarf_expr_require_composition (op_ptr, op_end, "DW_OP_regx"); | |
820 | pushf_register_address (indent, stream, registers_used, arch, | |
0fde2c53 DE |
821 | dwarf_reg_to_regnum_or_error |
822 | (arch, op - DW_OP_reg0)); | |
bb2ec1b3 TT |
823 | break; |
824 | ||
825 | case DW_OP_regx: | |
826 | op_ptr = safe_read_uleb128 (op_ptr, op_end, ®); | |
827 | dwarf_expr_require_composition (op_ptr, op_end, "DW_OP_regx"); | |
828 | pushf_register_address (indent, stream, registers_used, arch, | |
0fde2c53 | 829 | dwarf_reg_to_regnum_or_error (arch, reg)); |
bb2ec1b3 TT |
830 | break; |
831 | ||
832 | case DW_OP_breg0: | |
833 | case DW_OP_breg1: | |
834 | case DW_OP_breg2: | |
835 | case DW_OP_breg3: | |
836 | case DW_OP_breg4: | |
837 | case DW_OP_breg5: | |
838 | case DW_OP_breg6: | |
839 | case DW_OP_breg7: | |
840 | case DW_OP_breg8: | |
841 | case DW_OP_breg9: | |
842 | case DW_OP_breg10: | |
843 | case DW_OP_breg11: | |
844 | case DW_OP_breg12: | |
845 | case DW_OP_breg13: | |
846 | case DW_OP_breg14: | |
847 | case DW_OP_breg15: | |
848 | case DW_OP_breg16: | |
849 | case DW_OP_breg17: | |
850 | case DW_OP_breg18: | |
851 | case DW_OP_breg19: | |
852 | case DW_OP_breg20: | |
853 | case DW_OP_breg21: | |
854 | case DW_OP_breg22: | |
855 | case DW_OP_breg23: | |
856 | case DW_OP_breg24: | |
857 | case DW_OP_breg25: | |
858 | case DW_OP_breg26: | |
859 | case DW_OP_breg27: | |
860 | case DW_OP_breg28: | |
861 | case DW_OP_breg29: | |
862 | case DW_OP_breg30: | |
863 | case DW_OP_breg31: | |
864 | op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset); | |
865 | pushf_register (indent, stream, registers_used, arch, | |
0fde2c53 DE |
866 | dwarf_reg_to_regnum_or_error (arch, |
867 | op - DW_OP_breg0), | |
bb2ec1b3 TT |
868 | offset); |
869 | break; | |
870 | case DW_OP_bregx: | |
871 | { | |
872 | op_ptr = safe_read_uleb128 (op_ptr, op_end, ®); | |
873 | op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset); | |
874 | pushf_register (indent, stream, registers_used, arch, | |
0fde2c53 | 875 | dwarf_reg_to_regnum_or_error (arch, reg), offset); |
bb2ec1b3 TT |
876 | } |
877 | break; | |
878 | case DW_OP_fbreg: | |
879 | { | |
880 | const gdb_byte *datastart; | |
881 | size_t datalen; | |
882 | const struct block *b; | |
883 | struct symbol *framefunc; | |
884 | char fb_name[50]; | |
885 | ||
886 | b = block_for_pc (pc); | |
887 | ||
888 | if (!b) | |
889 | error (_("No block found for address")); | |
890 | ||
891 | framefunc = block_linkage_function (b); | |
892 | ||
893 | if (!framefunc) | |
894 | error (_("No function found for block")); | |
895 | ||
896 | func_get_frame_base_dwarf_block (framefunc, pc, | |
897 | &datastart, &datalen); | |
898 | ||
899 | op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset); | |
900 | ||
901 | /* Generate a unique-enough name, in case the frame base | |
902 | is computed multiple times in this expression. */ | |
903 | xsnprintf (fb_name, sizeof (fb_name), "__frame_base_%ld", | |
904 | (long) (op_ptr - base)); | |
905 | ||
906 | do_compile_dwarf_expr_to_c (indent, stream, | |
3a9558c4 | 907 | GCC_UINTPTR, fb_name, |
bb2ec1b3 TT |
908 | sym, pc, |
909 | arch, registers_used, addr_size, | |
910 | datastart, datastart + datalen, | |
911 | NULL, per_cu); | |
912 | ||
913 | pushf (indent, stream, "%s + %s", fb_name, hex_string (offset)); | |
914 | } | |
915 | break; | |
916 | ||
917 | case DW_OP_dup: | |
918 | pushf (indent, stream, "__gdb_stack[__gdb_tos]"); | |
919 | break; | |
920 | ||
921 | case DW_OP_drop: | |
922 | fprintfi_filtered (indent, stream, "--__gdb_tos;\n"); | |
923 | break; | |
924 | ||
925 | case DW_OP_pick: | |
926 | offset = *op_ptr++; | |
77b64a49 PA |
927 | pushf (indent, stream, "__gdb_stack[__gdb_tos - %s]", |
928 | plongest (offset)); | |
bb2ec1b3 TT |
929 | break; |
930 | ||
931 | case DW_OP_swap: | |
932 | fprintfi_filtered (indent, stream, | |
933 | "__gdb_tmp = __gdb_stack[__gdb_tos - 1];\n"); | |
934 | fprintfi_filtered (indent, stream, | |
935 | "__gdb_stack[__gdb_tos - 1] = " | |
936 | "__gdb_stack[__gdb_tos];\n"); | |
937 | fprintfi_filtered (indent, stream, ("__gdb_stack[__gdb_tos] = " | |
938 | "__gdb_tmp;\n")); | |
939 | break; | |
940 | ||
941 | case DW_OP_over: | |
942 | pushf (indent, stream, "__gdb_stack[__gdb_tos - 1]"); | |
943 | break; | |
944 | ||
945 | case DW_OP_rot: | |
946 | fprintfi_filtered (indent, stream, ("__gdb_tmp = " | |
947 | "__gdb_stack[__gdb_tos];\n")); | |
948 | fprintfi_filtered (indent, stream, | |
949 | "__gdb_stack[__gdb_tos] = " | |
950 | "__gdb_stack[__gdb_tos - 1];\n"); | |
951 | fprintfi_filtered (indent, stream, | |
952 | "__gdb_stack[__gdb_tos - 1] = " | |
953 | "__gdb_stack[__gdb_tos -2];\n"); | |
954 | fprintfi_filtered (indent, stream, "__gdb_stack[__gdb_tos - 2] = " | |
955 | "__gdb_tmp;\n"); | |
956 | break; | |
957 | ||
958 | case DW_OP_deref: | |
959 | case DW_OP_deref_size: | |
960 | { | |
961 | int size; | |
962 | const char *mode; | |
963 | ||
964 | if (op == DW_OP_deref_size) | |
965 | size = *op_ptr++; | |
966 | else | |
967 | size = addr_size; | |
968 | ||
969 | mode = c_get_mode_for_size (size); | |
970 | if (mode == NULL) | |
971 | error (_("Unsupported size %d in %s"), | |
972 | size, get_DW_OP_name (op)); | |
973 | ||
974 | /* Cast to a pointer of the desired type, then | |
975 | dereference. */ | |
976 | fprintfi_filtered (indent, stream, | |
977 | "__gdb_stack[__gdb_tos] = " | |
978 | "*((__gdb_int_%s *) " | |
979 | "__gdb_stack[__gdb_tos]);\n", | |
980 | mode); | |
981 | } | |
982 | break; | |
983 | ||
984 | case DW_OP_abs: | |
985 | unary (indent, stream, | |
986 | "((" GCC_INTPTR ") __gdb_stack[__gdb_tos]) < 0 ? " | |
987 | "-__gdb_stack[__gdb_tos] : __gdb_stack[__gdb_tos]"); | |
988 | break; | |
989 | ||
990 | case DW_OP_neg: | |
991 | unary (indent, stream, "-__gdb_stack[__gdb_tos]"); | |
992 | break; | |
993 | ||
994 | case DW_OP_not: | |
995 | unary (indent, stream, "~__gdb_stack[__gdb_tos]"); | |
996 | break; | |
997 | ||
998 | case DW_OP_plus_uconst: | |
999 | op_ptr = safe_read_uleb128 (op_ptr, op_end, ®); | |
1000 | unary (indent, stream, "__gdb_stack[__gdb_tos] + %s", | |
1001 | hex_string (reg)); | |
1002 | break; | |
1003 | ||
1004 | case DW_OP_div: | |
1005 | binary (indent, stream, ("((" GCC_INTPTR | |
1006 | ") __gdb_stack[__gdb_tos-1]) / ((" | |
1007 | GCC_INTPTR ") __gdb_stack[__gdb_tos])")); | |
1008 | break; | |
1009 | ||
1010 | case DW_OP_shra: | |
1011 | binary (indent, stream, | |
1012 | "((" GCC_INTPTR ") __gdb_stack[__gdb_tos-1]) >> " | |
1013 | "__gdb_stack[__gdb_tos]"); | |
1014 | break; | |
1015 | ||
1016 | #define BINARY(OP) \ | |
77b64a49 PA |
1017 | binary (indent, stream, "%s", "__gdb_stack[__gdb_tos-1] " #OP \ |
1018 | " __gdb_stack[__gdb_tos]"); \ | |
bb2ec1b3 TT |
1019 | break |
1020 | ||
1021 | case DW_OP_and: | |
1022 | BINARY (&); | |
1023 | case DW_OP_minus: | |
1024 | BINARY (-); | |
1025 | case DW_OP_mod: | |
1026 | BINARY (%); | |
1027 | case DW_OP_mul: | |
1028 | BINARY (*); | |
1029 | case DW_OP_or: | |
1030 | BINARY (|); | |
1031 | case DW_OP_plus: | |
1032 | BINARY (+); | |
1033 | case DW_OP_shl: | |
1034 | BINARY (<<); | |
1035 | case DW_OP_shr: | |
1036 | BINARY (>>); | |
1037 | case DW_OP_xor: | |
1038 | BINARY (^); | |
1039 | #undef BINARY | |
1040 | ||
1041 | #define COMPARE(OP) \ | |
1042 | binary (indent, stream, \ | |
1043 | "(((" GCC_INTPTR ") __gdb_stack[__gdb_tos-1]) " #OP \ | |
1044 | " ((" GCC_INTPTR \ | |
1045 | ") __gdb_stack[__gdb_tos]))"); \ | |
1046 | break | |
1047 | ||
1048 | case DW_OP_le: | |
1049 | COMPARE (<=); | |
1050 | case DW_OP_ge: | |
1051 | COMPARE (>=); | |
1052 | case DW_OP_eq: | |
1053 | COMPARE (==); | |
1054 | case DW_OP_lt: | |
1055 | COMPARE (<); | |
1056 | case DW_OP_gt: | |
1057 | COMPARE (>); | |
1058 | case DW_OP_ne: | |
1059 | COMPARE (!=); | |
1060 | #undef COMPARE | |
1061 | ||
1062 | case DW_OP_call_frame_cfa: | |
1063 | { | |
1064 | int regnum; | |
1065 | CORE_ADDR text_offset; | |
1066 | LONGEST off; | |
1067 | const gdb_byte *cfa_start, *cfa_end; | |
1068 | ||
1069 | if (dwarf2_fetch_cfa_info (arch, pc, per_cu, | |
1070 | ®num, &off, | |
1071 | &text_offset, &cfa_start, &cfa_end)) | |
1072 | { | |
1073 | /* Register. */ | |
1074 | pushf_register (indent, stream, registers_used, arch, regnum, | |
1075 | off); | |
1076 | } | |
1077 | else | |
1078 | { | |
1079 | /* Another expression. */ | |
1080 | char cfa_name[50]; | |
1081 | ||
1082 | /* Generate a unique-enough name, in case the CFA is | |
1083 | computed multiple times in this expression. */ | |
1084 | xsnprintf (cfa_name, sizeof (cfa_name), | |
1085 | "__cfa_%ld", (long) (op_ptr - base)); | |
1086 | ||
1087 | do_compile_dwarf_expr_to_c (indent, stream, | |
3a9558c4 | 1088 | GCC_UINTPTR, cfa_name, |
bb2ec1b3 TT |
1089 | sym, pc, arch, registers_used, |
1090 | addr_size, | |
1091 | cfa_start, cfa_end, | |
1092 | &text_offset, per_cu); | |
77b64a49 | 1093 | pushf (indent, stream, "%s", cfa_name); |
bb2ec1b3 TT |
1094 | } |
1095 | } | |
1096 | ||
1097 | break; | |
1098 | ||
1099 | case DW_OP_skip: | |
1100 | offset = extract_signed_integer (op_ptr, 2, byte_order); | |
1101 | op_ptr += 2; | |
1102 | fprintfi_filtered (indent, stream, "goto "); | |
1103 | print_label (stream, scope, op_ptr + offset - base); | |
1104 | fprintf_filtered (stream, ";\n"); | |
1105 | break; | |
1106 | ||
1107 | case DW_OP_bra: | |
1108 | offset = extract_signed_integer (op_ptr, 2, byte_order); | |
1109 | op_ptr += 2; | |
1110 | fprintfi_filtered (indent, stream, | |
1111 | "if ((( " GCC_INTPTR | |
1112 | ") __gdb_stack[__gdb_tos--]) != 0) goto "); | |
1113 | print_label (stream, scope, op_ptr + offset - base); | |
1114 | fprintf_filtered (stream, ";\n"); | |
1115 | break; | |
1116 | ||
1117 | case DW_OP_nop: | |
1118 | break; | |
1119 | ||
1120 | default: | |
1121 | error (_("unhandled DWARF op: %s"), get_DW_OP_name (op)); | |
1122 | } | |
1123 | } | |
1124 | ||
3a9558c4 JK |
1125 | fprintfi_filtered (indent, stream, "%s = __gdb_stack[__gdb_tos];\n", |
1126 | result_name); | |
bb2ec1b3 TT |
1127 | fprintfi_filtered (indent - 2, stream, "}\n"); |
1128 | ||
1129 | do_cleanups (cleanup); | |
1130 | } | |
1131 | ||
1132 | /* See compile.h. */ | |
1133 | ||
1134 | void | |
1135 | compile_dwarf_expr_to_c (struct ui_file *stream, const char *result_name, | |
1136 | struct symbol *sym, CORE_ADDR pc, | |
1137 | struct gdbarch *arch, unsigned char *registers_used, | |
1138 | unsigned int addr_size, | |
1139 | const gdb_byte *op_ptr, const gdb_byte *op_end, | |
1140 | struct dwarf2_per_cu_data *per_cu) | |
1141 | { | |
3a9558c4 | 1142 | do_compile_dwarf_expr_to_c (2, stream, GCC_UINTPTR, result_name, sym, pc, |
bb2ec1b3 TT |
1143 | arch, registers_used, addr_size, op_ptr, op_end, |
1144 | NULL, per_cu); | |
1145 | } | |
1146 | ||
1147 | /* See compile.h. */ | |
1148 | ||
1149 | void | |
1150 | compile_dwarf_bounds_to_c (struct ui_file *stream, | |
1151 | const char *result_name, | |
1152 | const struct dynamic_prop *prop, | |
1153 | struct symbol *sym, CORE_ADDR pc, | |
1154 | struct gdbarch *arch, unsigned char *registers_used, | |
1155 | unsigned int addr_size, | |
1156 | const gdb_byte *op_ptr, const gdb_byte *op_end, | |
1157 | struct dwarf2_per_cu_data *per_cu) | |
1158 | { | |
1159 | do_compile_dwarf_expr_to_c (2, stream, "unsigned long ", result_name, | |
1160 | sym, pc, arch, registers_used, | |
1161 | addr_size, op_ptr, op_end, NULL, per_cu); | |
1162 | } |