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2e4b9b8c | 1 | /* Dwarf2 assembler output helper routines. |
a945c346 | 2 | Copyright (C) 2001-2024 Free Software Foundation, Inc. |
2e4b9b8c | 3 | |
1322177d | 4 | This file is part of GCC. |
2e4b9b8c | 5 | |
1322177d LB |
6 | GCC is free software; you can redistribute it and/or modify it under |
7 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 8 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 9 | version. |
2e4b9b8c | 10 | |
1322177d LB |
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
2e4b9b8c RH |
15 | |
16 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
17 | along with GCC; see the file COPYING3. If not see |
18 | <http://www.gnu.org/licenses/>. */ | |
2e4b9b8c RH |
19 | |
20 | ||
21 | #include "config.h" | |
22 | #include "system.h" | |
4977bab6 | 23 | #include "coretypes.h" |
957060b5 AM |
24 | #include "target.h" |
25 | #include "rtl.h" | |
2a1ee410 | 26 | #include "tree.h" |
4d0cdd0c | 27 | #include "memmodel.h" |
957060b5 | 28 | #include "tm_p.h" |
d8a2d370 DN |
29 | #include "stringpool.h" |
30 | #include "varasm.h" | |
2e4b9b8c RH |
31 | #include "output.h" |
32 | #include "dwarf2asm.h" | |
a80b0574 | 33 | #include "dwarf2.h" |
7180b1a6 RB |
34 | #include "function.h" |
35 | #include "emit-rtl.h" | |
90841d43 | 36 | #include "fold-const.h" |
2e4b9b8c | 37 | |
7abcdb06 ML |
38 | #ifndef XCOFF_DEBUGGING_INFO |
39 | #define XCOFF_DEBUGGING_INFO 0 | |
40 | #endif | |
41 | ||
2e4b9b8c | 42 | \f |
301d03af RS |
43 | /* Output an unaligned integer with the given value and size. Prefer not |
44 | to print a newline, since the caller may want to add a comment. */ | |
45 | ||
46 | void | |
7080f735 | 47 | dw2_assemble_integer (int size, rtx x) |
2e4b9b8c | 48 | { |
6e44c09b | 49 | if (size == 2 * (int) DWARF2_ADDR_SIZE && !CONST_SCALAR_INT_P (x)) |
74237316 JJ |
50 | { |
51 | /* On 32-bit targets with -gdwarf64, DImode values with | |
52 | relocations usually result in assembler errors. Assume | |
53 | all such values are positive and emit the relocation only | |
54 | in the least significant half. */ | |
e9ba2ccf | 55 | const char *op = integer_asm_op (DWARF2_ADDR_SIZE, false); |
74237316 JJ |
56 | if (BYTES_BIG_ENDIAN) |
57 | { | |
58 | if (op) | |
59 | { | |
60 | fputs (op, asm_out_file); | |
61 | fprint_whex (asm_out_file, 0); | |
62 | fputs (", ", asm_out_file); | |
63 | output_addr_const (asm_out_file, x); | |
64 | } | |
65 | else | |
66 | { | |
67 | assemble_integer (const0_rtx, DWARF2_ADDR_SIZE, | |
68 | BITS_PER_UNIT, 1); | |
69 | putc ('\n', asm_out_file); | |
70 | assemble_integer (x, DWARF2_ADDR_SIZE, | |
71 | BITS_PER_UNIT, 1); | |
72 | } | |
73 | } | |
74 | else | |
75 | { | |
76 | if (op) | |
77 | { | |
78 | fputs (op, asm_out_file); | |
79 | output_addr_const (asm_out_file, x); | |
80 | fputs (", ", asm_out_file); | |
81 | fprint_whex (asm_out_file, 0); | |
82 | } | |
83 | else | |
84 | { | |
85 | assemble_integer (x, DWARF2_ADDR_SIZE, | |
86 | BITS_PER_UNIT, 1); | |
87 | putc ('\n', asm_out_file); | |
88 | assemble_integer (const0_rtx, DWARF2_ADDR_SIZE, | |
89 | BITS_PER_UNIT, 1); | |
90 | } | |
91 | } | |
92 | return; | |
93 | } | |
94 | ||
e9ba2ccf | 95 | const char *op = integer_asm_op (size, false); |
301d03af RS |
96 | |
97 | if (op) | |
2e4b9b8c | 98 | { |
301d03af | 99 | fputs (op, asm_out_file); |
481683e1 | 100 | if (CONST_INT_P (x)) |
5e3929ed | 101 | fprint_whex (asm_out_file, (unsigned HOST_WIDE_INT) INTVAL (x)); |
301d03af RS |
102 | else |
103 | output_addr_const (asm_out_file, x); | |
2e4b9b8c | 104 | } |
301d03af RS |
105 | else |
106 | assemble_integer (x, size, BITS_PER_UNIT, 1); | |
2e4b9b8c | 107 | } |
3a538a66 | 108 | |
2e4b9b8c | 109 | |
d4ea4622 RH |
110 | /* Output a value of a given size in target byte order. */ |
111 | ||
112 | void | |
113 | dw2_asm_output_data_raw (int size, unsigned HOST_WIDE_INT value) | |
114 | { | |
115 | unsigned char bytes[8]; | |
116 | int i; | |
117 | ||
118 | for (i = 0; i < 8; ++i) | |
119 | { | |
120 | bytes[i] = value & 0xff; | |
121 | value >>= 8; | |
122 | } | |
123 | ||
124 | if (BYTES_BIG_ENDIAN) | |
125 | { | |
126 | for (i = size - 1; i > 0; --i) | |
a3f1cee4 UB |
127 | fprintf (asm_out_file, "%#x,", bytes[i]); |
128 | fprintf (asm_out_file, "%#x", bytes[0]); | |
d4ea4622 RH |
129 | } |
130 | else | |
131 | { | |
132 | for (i = 0; i < size - 1; ++i) | |
a3f1cee4 UB |
133 | fprintf (asm_out_file, "%#x,", bytes[i]); |
134 | fprintf (asm_out_file, "%#x", bytes[i]); | |
d4ea4622 RH |
135 | } |
136 | } | |
137 | ||
105f48ae | 138 | /* Output an immediate constant in a given SIZE in bytes. */ |
8e7fa2c8 | 139 | |
2e4b9b8c | 140 | void |
e34d07f2 KG |
141 | dw2_asm_output_data (int size, unsigned HOST_WIDE_INT value, |
142 | const char *comment, ...) | |
2e4b9b8c | 143 | { |
e34d07f2 | 144 | va_list ap; |
e9ba2ccf | 145 | const char *op = integer_asm_op (size, false); |
7080f735 | 146 | |
e34d07f2 | 147 | va_start (ap, comment); |
2e4b9b8c | 148 | |
da6af203 | 149 | if (size * 8 < HOST_BITS_PER_WIDE_INT) |
dd4786fe | 150 | value &= ~(HOST_WIDE_INT_M1U << (size * 8)); |
da6af203 | 151 | |
d61772b2 | 152 | if (op) |
5e3929ed DA |
153 | { |
154 | fputs (op, asm_out_file); | |
155 | fprint_whex (asm_out_file, value); | |
156 | } | |
d61772b2 GK |
157 | else |
158 | assemble_integer (GEN_INT (value), size, BITS_PER_UNIT, 1); | |
2e4b9b8c RH |
159 | |
160 | if (flag_debug_asm && comment) | |
161 | { | |
5e3929ed | 162 | fputs ("\t" ASM_COMMENT_START " ", asm_out_file); |
2e4b9b8c RH |
163 | vfprintf (asm_out_file, comment, ap); |
164 | } | |
5e3929ed | 165 | putc ('\n', asm_out_file); |
2e4b9b8c | 166 | |
e34d07f2 | 167 | va_end (ap); |
2e4b9b8c RH |
168 | } |
169 | ||
8e7fa2c8 RH |
170 | /* Output the difference between two symbols in a given size. */ |
171 | /* ??? There appear to be assemblers that do not like such | |
172 | subtraction, but do support ASM_SET_OP. It's unfortunately | |
173 | impossible to do here, since the ASM_SET_OP for the difference | |
174 | symbol must appear after both symbols are defined. */ | |
175 | ||
2e4b9b8c | 176 | void |
e34d07f2 KG |
177 | dw2_asm_output_delta (int size, const char *lab1, const char *lab2, |
178 | const char *comment, ...) | |
2e4b9b8c | 179 | { |
e34d07f2 | 180 | va_list ap; |
7080f735 | 181 | |
e34d07f2 | 182 | va_start (ap, comment); |
2e4b9b8c | 183 | |
7606e68f SS |
184 | #ifdef ASM_OUTPUT_DWARF_DELTA |
185 | ASM_OUTPUT_DWARF_DELTA (asm_out_file, size, lab1, lab2); | |
186 | #else | |
301d03af RS |
187 | dw2_assemble_integer (size, |
188 | gen_rtx_MINUS (Pmode, | |
189 | gen_rtx_SYMBOL_REF (Pmode, lab1), | |
190 | gen_rtx_SYMBOL_REF (Pmode, lab2))); | |
7606e68f | 191 | #endif |
2e4b9b8c RH |
192 | if (flag_debug_asm && comment) |
193 | { | |
194 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
195 | vfprintf (asm_out_file, comment, ap); | |
196 | } | |
197 | fputc ('\n', asm_out_file); | |
198 | ||
e34d07f2 | 199 | va_end (ap); |
2e4b9b8c RH |
200 | } |
201 | ||
2cea0398 | 202 | #ifdef ASM_OUTPUT_DWARF_VMS_DELTA |
67ad2ae7 DR |
203 | /* Output the difference between two symbols in instruction units |
204 | in a given size. */ | |
205 | ||
206 | void | |
207 | dw2_asm_output_vms_delta (int size ATTRIBUTE_UNUSED, | |
208 | const char *lab1, const char *lab2, | |
209 | const char *comment, ...) | |
210 | { | |
211 | va_list ap; | |
212 | ||
213 | va_start (ap, comment); | |
214 | ||
67ad2ae7 DR |
215 | ASM_OUTPUT_DWARF_VMS_DELTA (asm_out_file, size, lab1, lab2); |
216 | if (flag_debug_asm && comment) | |
217 | { | |
218 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
219 | vfprintf (asm_out_file, comment, ap); | |
220 | } | |
221 | fputc ('\n', asm_out_file); | |
67ad2ae7 DR |
222 | |
223 | va_end (ap); | |
224 | } | |
2cea0398 | 225 | #endif |
67ad2ae7 | 226 | |
192d0f89 GK |
227 | /* Output a section-relative reference to a LABEL, which was placed in |
228 | BASE. In general this can only be done for debugging symbols. | |
229 | E.g. on most targets with the GNU linker, this is accomplished with | |
230 | a direct reference and the knowledge that the debugging section | |
231 | will be placed at VMA 0. Some targets have special relocations for | |
232 | this that we must use. */ | |
8e7fa2c8 | 233 | |
2e4b9b8c | 234 | void |
79252435 SB |
235 | dw2_asm_output_offset (int size, const char *label, |
236 | section *base ATTRIBUTE_UNUSED, | |
e34d07f2 | 237 | const char *comment, ...) |
2e4b9b8c | 238 | { |
e34d07f2 | 239 | va_list ap; |
7080f735 | 240 | |
e34d07f2 | 241 | va_start (ap, comment); |
2e4b9b8c | 242 | |
8e7fa2c8 | 243 | #ifdef ASM_OUTPUT_DWARF_OFFSET |
7180b1a6 | 244 | ASM_OUTPUT_DWARF_OFFSET (asm_out_file, size, label, 0, base); |
8e7fa2c8 | 245 | #else |
301d03af | 246 | dw2_assemble_integer (size, gen_rtx_SYMBOL_REF (Pmode, label)); |
2e4b9b8c RH |
247 | #endif |
248 | ||
249 | if (flag_debug_asm && comment) | |
250 | { | |
251 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
252 | vfprintf (asm_out_file, comment, ap); | |
253 | } | |
254 | fputc ('\n', asm_out_file); | |
255 | ||
e34d07f2 | 256 | va_end (ap); |
2e4b9b8c RH |
257 | } |
258 | ||
7180b1a6 RB |
259 | void |
260 | dw2_asm_output_offset (int size, const char *label, HOST_WIDE_INT offset, | |
261 | section *base ATTRIBUTE_UNUSED, | |
262 | const char *comment, ...) | |
263 | { | |
264 | va_list ap; | |
265 | ||
266 | va_start (ap, comment); | |
267 | ||
268 | #ifdef ASM_OUTPUT_DWARF_OFFSET | |
269 | ASM_OUTPUT_DWARF_OFFSET (asm_out_file, size, label, offset, base); | |
270 | #else | |
271 | dw2_assemble_integer (size, gen_rtx_PLUS (Pmode, | |
272 | gen_rtx_SYMBOL_REF (Pmode, label), | |
273 | gen_int_mode (offset, Pmode))); | |
274 | #endif | |
275 | ||
276 | if (flag_debug_asm && comment) | |
277 | { | |
278 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
279 | vfprintf (asm_out_file, comment, ap); | |
280 | } | |
281 | fputc ('\n', asm_out_file); | |
282 | ||
283 | va_end (ap); | |
284 | } | |
285 | ||
c8f4fe99 BE |
286 | #if 0 |
287 | ||
8e7fa2c8 RH |
288 | /* Output a self-relative reference to a label, possibly in a |
289 | different section or object file. */ | |
290 | ||
2e4b9b8c | 291 | void |
e34d07f2 KG |
292 | dw2_asm_output_pcrel (int size ATTRIBUTE_UNUSED, |
293 | const char *label ATTRIBUTE_UNUSED, | |
294 | const char *comment, ...) | |
2e4b9b8c | 295 | { |
e34d07f2 | 296 | va_list ap; |
7080f735 | 297 | |
e34d07f2 | 298 | va_start (ap, comment); |
2e4b9b8c | 299 | |
8e7fa2c8 RH |
300 | #ifdef ASM_OUTPUT_DWARF_PCREL |
301 | ASM_OUTPUT_DWARF_PCREL (asm_out_file, size, label); | |
302 | #else | |
301d03af RS |
303 | dw2_assemble_integer (size, |
304 | gen_rtx_MINUS (Pmode, | |
305 | gen_rtx_SYMBOL_REF (Pmode, label), | |
306 | pc_rtx)); | |
8e7fa2c8 RH |
307 | #endif |
308 | ||
309 | if (flag_debug_asm && comment) | |
310 | { | |
311 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
312 | vfprintf (asm_out_file, comment, ap); | |
313 | } | |
314 | fputc ('\n', asm_out_file); | |
315 | ||
e34d07f2 | 316 | va_end (ap); |
8e7fa2c8 | 317 | } |
c8f4fe99 | 318 | #endif /* 0 */ |
8e7fa2c8 RH |
319 | |
320 | /* Output an absolute reference to a label. */ | |
321 | ||
322 | void | |
e34d07f2 KG |
323 | dw2_asm_output_addr (int size, const char *label, |
324 | const char *comment, ...) | |
8e7fa2c8 | 325 | { |
e34d07f2 | 326 | va_list ap; |
7080f735 | 327 | |
e34d07f2 | 328 | va_start (ap, comment); |
8e7fa2c8 | 329 | |
301d03af | 330 | dw2_assemble_integer (size, gen_rtx_SYMBOL_REF (Pmode, label)); |
2e4b9b8c RH |
331 | |
332 | if (flag_debug_asm && comment) | |
333 | { | |
334 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
335 | vfprintf (asm_out_file, comment, ap); | |
336 | } | |
337 | fputc ('\n', asm_out_file); | |
338 | ||
e34d07f2 | 339 | va_end (ap); |
2e4b9b8c RH |
340 | } |
341 | ||
8e7fa2c8 RH |
342 | /* Similar, but use an RTX expression instead of a text label. */ |
343 | ||
2e4b9b8c | 344 | void |
e34d07f2 KG |
345 | dw2_asm_output_addr_rtx (int size, rtx addr, |
346 | const char *comment, ...) | |
2e4b9b8c | 347 | { |
e34d07f2 | 348 | va_list ap; |
7080f735 | 349 | |
e34d07f2 | 350 | va_start (ap, comment); |
2e4b9b8c | 351 | |
301d03af | 352 | dw2_assemble_integer (size, addr); |
2e4b9b8c RH |
353 | |
354 | if (flag_debug_asm && comment) | |
355 | { | |
356 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
357 | vfprintf (asm_out_file, comment, ap); | |
358 | } | |
359 | fputc ('\n', asm_out_file); | |
360 | ||
e34d07f2 | 361 | va_end (ap); |
2e4b9b8c RH |
362 | } |
363 | ||
1e290ba1 JB |
364 | /* Output the first ORIG_LEN characters of STR as a string. |
365 | If ORIG_LEN is equal to -1, ignore this parameter and output | |
366 | the entire STR instead. | |
367 | If COMMENT is not NULL and comments in the debug information | |
368 | have been requested by the user, append the given COMMENT | |
369 | to the generated output. */ | |
b8698a0f | 370 | |
2e4b9b8c | 371 | void |
e34d07f2 KG |
372 | dw2_asm_output_nstring (const char *str, size_t orig_len, |
373 | const char *comment, ...) | |
2e4b9b8c | 374 | { |
7a75edb7 | 375 | size_t i, len; |
e34d07f2 | 376 | va_list ap; |
2e4b9b8c | 377 | |
e34d07f2 | 378 | va_start (ap, comment); |
2e4b9b8c | 379 | |
7a75edb7 | 380 | len = orig_len; |
2e4b9b8c RH |
381 | |
382 | if (len == (size_t) -1) | |
383 | len = strlen (str); | |
384 | ||
385 | if (flag_debug_asm && comment) | |
386 | { | |
7abcdb06 ML |
387 | if (XCOFF_DEBUGGING_INFO) |
388 | fputs ("\t.byte \"", asm_out_file); | |
389 | else | |
390 | fputs ("\t.ascii \"", asm_out_file); | |
51fbbb92 | 391 | |
2e4b9b8c RH |
392 | for (i = 0; i < len; i++) |
393 | { | |
394 | int c = str[i]; | |
7e78cfda | 395 | if (c == '\"') |
7abcdb06 | 396 | fputc (XCOFF_DEBUGGING_INFO ? '\"' : '\\', asm_out_file); |
7e78cfda | 397 | else if (c == '\\') |
2e4b9b8c | 398 | fputc ('\\', asm_out_file); |
c3284718 | 399 | if (ISPRINT (c)) |
2e4b9b8c RH |
400 | fputc (c, asm_out_file); |
401 | else | |
402 | fprintf (asm_out_file, "\\%o", c); | |
403 | } | |
404 | fprintf (asm_out_file, "\\0\"\t%s ", ASM_COMMENT_START); | |
405 | vfprintf (asm_out_file, comment, ap); | |
406 | fputc ('\n', asm_out_file); | |
407 | } | |
408 | else | |
409 | { | |
410 | /* If an explicit length was given, we can't assume there | |
411 | is a null termination in the string buffer. */ | |
412 | if (orig_len == (size_t) -1) | |
413 | len += 1; | |
414 | ASM_OUTPUT_ASCII (asm_out_file, str, len); | |
415 | if (orig_len != (size_t) -1) | |
301d03af | 416 | assemble_integer (const0_rtx, 1, BITS_PER_UNIT, 1); |
2e4b9b8c RH |
417 | } |
418 | ||
e34d07f2 | 419 | va_end (ap); |
2e4b9b8c RH |
420 | } |
421 | \f | |
422 | ||
423 | /* Return the size of an unsigned LEB128 quantity. */ | |
424 | ||
425 | int | |
7080f735 | 426 | size_of_uleb128 (unsigned HOST_WIDE_INT value) |
2e4b9b8c | 427 | { |
4977bab6 | 428 | int size = 0; |
2e4b9b8c RH |
429 | |
430 | do | |
431 | { | |
2e4b9b8c RH |
432 | value >>= 7; |
433 | size += 1; | |
434 | } | |
435 | while (value != 0); | |
436 | ||
437 | return size; | |
438 | } | |
439 | ||
440 | /* Return the size of a signed LEB128 quantity. */ | |
441 | ||
442 | int | |
7080f735 | 443 | size_of_sleb128 (HOST_WIDE_INT value) |
2e4b9b8c RH |
444 | { |
445 | int size = 0, byte; | |
446 | ||
447 | do | |
448 | { | |
449 | byte = (value & 0x7f); | |
450 | value >>= 7; | |
451 | size += 1; | |
452 | } | |
453 | while (!((value == 0 && (byte & 0x40) == 0) | |
454 | || (value == -1 && (byte & 0x40) != 0))); | |
455 | ||
456 | return size; | |
457 | } | |
458 | ||
b627d6fe | 459 | /* Given an encoding, return the number of bytes the format occupies. |
3a538a66 | 460 | This is only defined for fixed-size encodings, and so does not |
b627d6fe RH |
461 | include leb128. */ |
462 | ||
463 | int | |
7080f735 | 464 | size_of_encoded_value (int encoding) |
b627d6fe RH |
465 | { |
466 | if (encoding == DW_EH_PE_omit) | |
467 | return 0; | |
468 | ||
469 | switch (encoding & 0x07) | |
470 | { | |
471 | case DW_EH_PE_absptr: | |
50b6ee8b | 472 | return POINTER_SIZE_UNITS; |
b627d6fe RH |
473 | case DW_EH_PE_udata2: |
474 | return 2; | |
475 | case DW_EH_PE_udata4: | |
476 | return 4; | |
477 | case DW_EH_PE_udata8: | |
478 | return 8; | |
ced3f397 NS |
479 | default: |
480 | gcc_unreachable (); | |
b627d6fe | 481 | } |
b627d6fe RH |
482 | } |
483 | ||
e1f9550a RH |
484 | /* Yield a name for a given pointer encoding. */ |
485 | ||
486 | const char * | |
7080f735 | 487 | eh_data_format_name (int format) |
e1f9550a RH |
488 | { |
489 | #if HAVE_DESIGNATED_INITIALIZERS | |
490 | #define S(p, v) [p] = v, | |
16dda95e JJ |
491 | #elif __cpp_constexpr >= 201304L |
492 | #define S(p, v) names[p] = v; | |
e1f9550a RH |
493 | #else |
494 | #define S(p, v) case p: return v; | |
495 | #endif | |
496 | ||
497 | #if HAVE_DESIGNATED_INITIALIZERS | |
498 | __extension__ static const char * const format_names[256] = { | |
16dda95e JJ |
499 | #elif __cpp_constexpr >= 201304L |
500 | static constexpr struct format_names_s { | |
501 | const char *names[256]; | |
502 | constexpr format_names_s () : names {} | |
503 | { | |
e1f9550a | 504 | #else |
16dda95e JJ |
505 | switch (format) |
506 | { | |
e1f9550a RH |
507 | #endif |
508 | ||
509 | S(DW_EH_PE_absptr, "absolute") | |
510 | S(DW_EH_PE_omit, "omit") | |
099c8b17 | 511 | S(DW_EH_PE_aligned, "aligned absolute") |
e1f9550a RH |
512 | |
513 | S(DW_EH_PE_uleb128, "uleb128") | |
514 | S(DW_EH_PE_udata2, "udata2") | |
515 | S(DW_EH_PE_udata4, "udata4") | |
516 | S(DW_EH_PE_udata8, "udata8") | |
517 | S(DW_EH_PE_sleb128, "sleb128") | |
518 | S(DW_EH_PE_sdata2, "sdata2") | |
519 | S(DW_EH_PE_sdata4, "sdata4") | |
520 | S(DW_EH_PE_sdata8, "sdata8") | |
521 | ||
f90811a2 | 522 | S(DW_EH_PE_absptr | DW_EH_PE_pcrel, "pcrel") |
e1f9550a RH |
523 | S(DW_EH_PE_uleb128 | DW_EH_PE_pcrel, "pcrel uleb128") |
524 | S(DW_EH_PE_udata2 | DW_EH_PE_pcrel, "pcrel udata2") | |
525 | S(DW_EH_PE_udata4 | DW_EH_PE_pcrel, "pcrel udata4") | |
526 | S(DW_EH_PE_udata8 | DW_EH_PE_pcrel, "pcrel udata8") | |
527 | S(DW_EH_PE_sleb128 | DW_EH_PE_pcrel, "pcrel sleb128") | |
528 | S(DW_EH_PE_sdata2 | DW_EH_PE_pcrel, "pcrel sdata2") | |
529 | S(DW_EH_PE_sdata4 | DW_EH_PE_pcrel, "pcrel sdata4") | |
530 | S(DW_EH_PE_sdata8 | DW_EH_PE_pcrel, "pcrel sdata8") | |
531 | ||
f90811a2 | 532 | S(DW_EH_PE_absptr | DW_EH_PE_textrel, "textrel") |
e1f9550a RH |
533 | S(DW_EH_PE_uleb128 | DW_EH_PE_textrel, "textrel uleb128") |
534 | S(DW_EH_PE_udata2 | DW_EH_PE_textrel, "textrel udata2") | |
535 | S(DW_EH_PE_udata4 | DW_EH_PE_textrel, "textrel udata4") | |
536 | S(DW_EH_PE_udata8 | DW_EH_PE_textrel, "textrel udata8") | |
537 | S(DW_EH_PE_sleb128 | DW_EH_PE_textrel, "textrel sleb128") | |
538 | S(DW_EH_PE_sdata2 | DW_EH_PE_textrel, "textrel sdata2") | |
539 | S(DW_EH_PE_sdata4 | DW_EH_PE_textrel, "textrel sdata4") | |
540 | S(DW_EH_PE_sdata8 | DW_EH_PE_textrel, "textrel sdata8") | |
541 | ||
f90811a2 | 542 | S(DW_EH_PE_absptr | DW_EH_PE_datarel, "datarel") |
e1f9550a RH |
543 | S(DW_EH_PE_uleb128 | DW_EH_PE_datarel, "datarel uleb128") |
544 | S(DW_EH_PE_udata2 | DW_EH_PE_datarel, "datarel udata2") | |
545 | S(DW_EH_PE_udata4 | DW_EH_PE_datarel, "datarel udata4") | |
546 | S(DW_EH_PE_udata8 | DW_EH_PE_datarel, "datarel udata8") | |
547 | S(DW_EH_PE_sleb128 | DW_EH_PE_datarel, "datarel sleb128") | |
548 | S(DW_EH_PE_sdata2 | DW_EH_PE_datarel, "datarel sdata2") | |
549 | S(DW_EH_PE_sdata4 | DW_EH_PE_datarel, "datarel sdata4") | |
550 | S(DW_EH_PE_sdata8 | DW_EH_PE_datarel, "datarel sdata8") | |
551 | ||
f90811a2 | 552 | S(DW_EH_PE_absptr | DW_EH_PE_funcrel, "funcrel") |
e1f9550a RH |
553 | S(DW_EH_PE_uleb128 | DW_EH_PE_funcrel, "funcrel uleb128") |
554 | S(DW_EH_PE_udata2 | DW_EH_PE_funcrel, "funcrel udata2") | |
555 | S(DW_EH_PE_udata4 | DW_EH_PE_funcrel, "funcrel udata4") | |
556 | S(DW_EH_PE_udata8 | DW_EH_PE_funcrel, "funcrel udata8") | |
557 | S(DW_EH_PE_sleb128 | DW_EH_PE_funcrel, "funcrel sleb128") | |
558 | S(DW_EH_PE_sdata2 | DW_EH_PE_funcrel, "funcrel sdata2") | |
559 | S(DW_EH_PE_sdata4 | DW_EH_PE_funcrel, "funcrel sdata4") | |
560 | S(DW_EH_PE_sdata8 | DW_EH_PE_funcrel, "funcrel sdata8") | |
561 | ||
49576e25 RS |
562 | S(DW_EH_PE_indirect | DW_EH_PE_absptr, "indirect absolute") |
563 | ||
f90811a2 RH |
564 | S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_pcrel, |
565 | "indirect pcrel") | |
e1f9550a RH |
566 | S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_pcrel, |
567 | "indirect pcrel uleb128") | |
568 | S(DW_EH_PE_indirect | DW_EH_PE_udata2 | DW_EH_PE_pcrel, | |
569 | "indirect pcrel udata2") | |
570 | S(DW_EH_PE_indirect | DW_EH_PE_udata4 | DW_EH_PE_pcrel, | |
571 | "indirect pcrel udata4") | |
572 | S(DW_EH_PE_indirect | DW_EH_PE_udata8 | DW_EH_PE_pcrel, | |
573 | "indirect pcrel udata8") | |
574 | S(DW_EH_PE_indirect | DW_EH_PE_sleb128 | DW_EH_PE_pcrel, | |
575 | "indirect pcrel sleb128") | |
576 | S(DW_EH_PE_indirect | DW_EH_PE_sdata2 | DW_EH_PE_pcrel, | |
577 | "indirect pcrel sdata2") | |
578 | S(DW_EH_PE_indirect | DW_EH_PE_sdata4 | DW_EH_PE_pcrel, | |
579 | "indirect pcrel sdata4") | |
580 | S(DW_EH_PE_indirect | DW_EH_PE_sdata8 | DW_EH_PE_pcrel, | |
581 | "indirect pcrel sdata8") | |
582 | ||
f90811a2 RH |
583 | S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_textrel, |
584 | "indirect textrel") | |
e1f9550a RH |
585 | S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_textrel, |
586 | "indirect textrel uleb128") | |
587 | S(DW_EH_PE_indirect | DW_EH_PE_udata2 | DW_EH_PE_textrel, | |
588 | "indirect textrel udata2") | |
589 | S(DW_EH_PE_indirect | DW_EH_PE_udata4 | DW_EH_PE_textrel, | |
590 | "indirect textrel udata4") | |
591 | S(DW_EH_PE_indirect | DW_EH_PE_udata8 | DW_EH_PE_textrel, | |
592 | "indirect textrel udata8") | |
593 | S(DW_EH_PE_indirect | DW_EH_PE_sleb128 | DW_EH_PE_textrel, | |
594 | "indirect textrel sleb128") | |
595 | S(DW_EH_PE_indirect | DW_EH_PE_sdata2 | DW_EH_PE_textrel, | |
596 | "indirect textrel sdata2") | |
597 | S(DW_EH_PE_indirect | DW_EH_PE_sdata4 | DW_EH_PE_textrel, | |
598 | "indirect textrel sdata4") | |
599 | S(DW_EH_PE_indirect | DW_EH_PE_sdata8 | DW_EH_PE_textrel, | |
600 | "indirect textrel sdata8") | |
601 | ||
f90811a2 RH |
602 | S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_datarel, |
603 | "indirect datarel") | |
e1f9550a RH |
604 | S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_datarel, |
605 | "indirect datarel uleb128") | |
606 | S(DW_EH_PE_indirect | DW_EH_PE_udata2 | DW_EH_PE_datarel, | |
607 | "indirect datarel udata2") | |
608 | S(DW_EH_PE_indirect | DW_EH_PE_udata4 | DW_EH_PE_datarel, | |
609 | "indirect datarel udata4") | |
610 | S(DW_EH_PE_indirect | DW_EH_PE_udata8 | DW_EH_PE_datarel, | |
611 | "indirect datarel udata8") | |
612 | S(DW_EH_PE_indirect | DW_EH_PE_sleb128 | DW_EH_PE_datarel, | |
613 | "indirect datarel sleb128") | |
614 | S(DW_EH_PE_indirect | DW_EH_PE_sdata2 | DW_EH_PE_datarel, | |
615 | "indirect datarel sdata2") | |
616 | S(DW_EH_PE_indirect | DW_EH_PE_sdata4 | DW_EH_PE_datarel, | |
617 | "indirect datarel sdata4") | |
618 | S(DW_EH_PE_indirect | DW_EH_PE_sdata8 | DW_EH_PE_datarel, | |
619 | "indirect datarel sdata8") | |
620 | ||
f90811a2 RH |
621 | S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_funcrel, |
622 | "indirect funcrel") | |
e1f9550a RH |
623 | S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_funcrel, |
624 | "indirect funcrel uleb128") | |
625 | S(DW_EH_PE_indirect | DW_EH_PE_udata2 | DW_EH_PE_funcrel, | |
626 | "indirect funcrel udata2") | |
627 | S(DW_EH_PE_indirect | DW_EH_PE_udata4 | DW_EH_PE_funcrel, | |
628 | "indirect funcrel udata4") | |
629 | S(DW_EH_PE_indirect | DW_EH_PE_udata8 | DW_EH_PE_funcrel, | |
630 | "indirect funcrel udata8") | |
631 | S(DW_EH_PE_indirect | DW_EH_PE_sleb128 | DW_EH_PE_funcrel, | |
632 | "indirect funcrel sleb128") | |
633 | S(DW_EH_PE_indirect | DW_EH_PE_sdata2 | DW_EH_PE_funcrel, | |
634 | "indirect funcrel sdata2") | |
635 | S(DW_EH_PE_indirect | DW_EH_PE_sdata4 | DW_EH_PE_funcrel, | |
636 | "indirect funcrel sdata4") | |
637 | S(DW_EH_PE_indirect | DW_EH_PE_sdata8 | DW_EH_PE_funcrel, | |
638 | "indirect funcrel sdata8") | |
639 | ||
640 | #if HAVE_DESIGNATED_INITIALIZERS | |
641 | }; | |
642 | ||
ced3f397 | 643 | gcc_assert (format >= 0 && format < 0x100 && format_names[format]); |
b8698a0f | 644 | |
e1f9550a | 645 | return format_names[format]; |
16dda95e JJ |
646 | #elif __cpp_constexpr >= 201304L |
647 | } | |
648 | } format_names; | |
649 | ||
650 | gcc_assert (format >= 0 && format < 0x100 && format_names.names[format]); | |
651 | ||
652 | return format_names.names[format]; | |
e1f9550a | 653 | #else |
16dda95e | 654 | } |
ced3f397 | 655 | gcc_unreachable (); |
e1f9550a RH |
656 | #endif |
657 | } | |
658 | ||
d4ea4622 RH |
659 | /* Output an unsigned LEB128 quantity, but only the byte values. */ |
660 | ||
661 | void | |
662 | dw2_asm_output_data_uleb128_raw (unsigned HOST_WIDE_INT value) | |
663 | { | |
664 | while (1) | |
665 | { | |
666 | int byte = (value & 0x7f); | |
667 | value >>= 7; | |
668 | if (value != 0) | |
669 | /* More bytes to follow. */ | |
670 | byte |= 0x80; | |
671 | ||
a3f1cee4 | 672 | fprintf (asm_out_file, "%#x", byte); |
d4ea4622 RH |
673 | if (value == 0) |
674 | break; | |
675 | fputc (',', asm_out_file); | |
676 | } | |
677 | } | |
678 | ||
2e4b9b8c RH |
679 | /* Output an unsigned LEB128 quantity. */ |
680 | ||
681 | void | |
e34d07f2 KG |
682 | dw2_asm_output_data_uleb128 (unsigned HOST_WIDE_INT value, |
683 | const char *comment, ...) | |
2e4b9b8c | 684 | { |
e34d07f2 | 685 | va_list ap; |
7080f735 | 686 | |
e34d07f2 | 687 | va_start (ap, comment); |
2e4b9b8c | 688 | |
61214be1 | 689 | if (HAVE_AS_LEB128) |
2e4b9b8c | 690 | { |
61214be1 TS |
691 | fputs ("\t.uleb128 ", asm_out_file); |
692 | fprint_whex (asm_out_file, value); | |
693 | ||
694 | if (flag_debug_asm && comment) | |
695 | { | |
696 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
697 | vfprintf (asm_out_file, comment, ap); | |
698 | } | |
2e4b9b8c | 699 | } |
61214be1 | 700 | else |
2e4b9b8c | 701 | { |
61214be1 TS |
702 | unsigned HOST_WIDE_INT work = value; |
703 | const char *byte_op = targetm.asm_out.byte_op; | |
704 | ||
705 | if (byte_op) | |
706 | fputs (byte_op, asm_out_file); | |
707 | do | |
2e4b9b8c | 708 | { |
61214be1 TS |
709 | int byte = (work & 0x7f); |
710 | work >>= 7; | |
711 | if (work != 0) | |
712 | /* More bytes to follow. */ | |
713 | byte |= 0x80; | |
714 | ||
715 | if (byte_op) | |
716 | { | |
717 | fprintf (asm_out_file, "%#x", byte); | |
718 | if (work != 0) | |
719 | fputc (',', asm_out_file); | |
720 | } | |
721 | else | |
722 | assemble_integer (GEN_INT (byte), 1, BITS_PER_UNIT, 1); | |
723 | } | |
724 | while (work != 0); | |
725 | ||
726 | if (flag_debug_asm) | |
727 | { | |
728 | fprintf (asm_out_file, "\t%s uleb128 " HOST_WIDE_INT_PRINT_HEX, | |
729 | ASM_COMMENT_START, value); | |
730 | if (comment) | |
731 | { | |
732 | fputs ("; ", asm_out_file); | |
733 | vfprintf (asm_out_file, comment, ap); | |
734 | } | |
2e4b9b8c RH |
735 | } |
736 | } | |
61214be1 | 737 | |
5e3929ed | 738 | putc ('\n', asm_out_file); |
2e4b9b8c | 739 | |
e34d07f2 | 740 | va_end (ap); |
2e4b9b8c RH |
741 | } |
742 | ||
d4ea4622 RH |
743 | /* Output an signed LEB128 quantity, but only the byte values. */ |
744 | ||
745 | void | |
746 | dw2_asm_output_data_sleb128_raw (HOST_WIDE_INT value) | |
747 | { | |
748 | int byte, more; | |
749 | ||
750 | while (1) | |
751 | { | |
752 | byte = (value & 0x7f); | |
753 | value >>= 7; | |
754 | more = !((value == 0 && (byte & 0x40) == 0) | |
755 | || (value == -1 && (byte & 0x40) != 0)); | |
756 | if (more) | |
757 | byte |= 0x80; | |
758 | ||
a3f1cee4 | 759 | fprintf (asm_out_file, "%#x", byte); |
d4ea4622 RH |
760 | if (!more) |
761 | break; | |
762 | fputc (',', asm_out_file); | |
763 | } | |
764 | } | |
765 | ||
09da1532 | 766 | /* Output a signed LEB128 quantity. */ |
2e4b9b8c RH |
767 | |
768 | void | |
e34d07f2 KG |
769 | dw2_asm_output_data_sleb128 (HOST_WIDE_INT value, |
770 | const char *comment, ...) | |
2e4b9b8c | 771 | { |
e34d07f2 | 772 | va_list ap; |
7080f735 | 773 | |
e34d07f2 | 774 | va_start (ap, comment); |
2e4b9b8c | 775 | |
61214be1 | 776 | if (HAVE_AS_LEB128) |
2e4b9b8c | 777 | { |
61214be1 TS |
778 | fprintf (asm_out_file, "\t.sleb128 " HOST_WIDE_INT_PRINT_DEC, value); |
779 | ||
780 | if (flag_debug_asm && comment) | |
781 | { | |
782 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
783 | vfprintf (asm_out_file, comment, ap); | |
784 | } | |
2e4b9b8c | 785 | } |
61214be1 | 786 | else |
2e4b9b8c | 787 | { |
61214be1 TS |
788 | HOST_WIDE_INT work = value; |
789 | int more, byte; | |
790 | const char *byte_op = targetm.asm_out.byte_op; | |
791 | ||
792 | if (byte_op) | |
793 | fputs (byte_op, asm_out_file); | |
794 | do | |
2e4b9b8c | 795 | { |
61214be1 TS |
796 | byte = (work & 0x7f); |
797 | /* arithmetic shift */ | |
798 | work >>= 7; | |
799 | more = !((work == 0 && (byte & 0x40) == 0) | |
800 | || (work == -1 && (byte & 0x40) != 0)); | |
801 | if (more) | |
802 | byte |= 0x80; | |
803 | ||
804 | if (byte_op) | |
805 | { | |
806 | fprintf (asm_out_file, "%#x", byte); | |
807 | if (more) | |
808 | fputc (',', asm_out_file); | |
809 | } | |
810 | else | |
811 | assemble_integer (GEN_INT (byte), 1, BITS_PER_UNIT, 1); | |
812 | } | |
813 | while (more); | |
814 | ||
815 | if (flag_debug_asm) | |
816 | { | |
817 | fprintf (asm_out_file, "\t%s sleb128 " HOST_WIDE_INT_PRINT_DEC, | |
818 | ASM_COMMENT_START, value); | |
819 | if (comment) | |
820 | { | |
821 | fputs ("; ", asm_out_file); | |
822 | vfprintf (asm_out_file, comment, ap); | |
823 | } | |
2e4b9b8c RH |
824 | } |
825 | } | |
61214be1 | 826 | |
2e4b9b8c RH |
827 | fputc ('\n', asm_out_file); |
828 | ||
e34d07f2 | 829 | va_end (ap); |
2e4b9b8c RH |
830 | } |
831 | ||
bd2b9f1e AO |
832 | /* Output symbol LAB1 as an unsigned LEB128 quantity. LAB1 should be |
833 | an assembler-computed constant, e.g. a view number, because we | |
834 | can't have relocations in LEB128 quantities. */ | |
835 | ||
836 | void | |
837 | dw2_asm_output_symname_uleb128 (const char *lab1 ATTRIBUTE_UNUSED, | |
838 | const char *comment, ...) | |
839 | { | |
840 | va_list ap; | |
841 | ||
842 | va_start (ap, comment); | |
843 | ||
844 | #ifdef HAVE_AS_LEB128 | |
845 | fputs ("\t.uleb128 ", asm_out_file); | |
846 | assemble_name (asm_out_file, lab1); | |
847 | #else | |
848 | gcc_unreachable (); | |
849 | #endif | |
850 | ||
851 | if (flag_debug_asm && comment) | |
852 | { | |
853 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
854 | vfprintf (asm_out_file, comment, ap); | |
855 | } | |
856 | fputc ('\n', asm_out_file); | |
857 | ||
858 | va_end (ap); | |
859 | } | |
860 | ||
2e4b9b8c | 861 | void |
e34d07f2 KG |
862 | dw2_asm_output_delta_uleb128 (const char *lab1 ATTRIBUTE_UNUSED, |
863 | const char *lab2 ATTRIBUTE_UNUSED, | |
864 | const char *comment, ...) | |
2e4b9b8c | 865 | { |
e34d07f2 KG |
866 | va_list ap; |
867 | ||
868 | va_start (ap, comment); | |
2e4b9b8c | 869 | |
61214be1 TS |
870 | gcc_assert (HAVE_AS_LEB128); |
871 | ||
da6af203 | 872 | fputs ("\t.uleb128 ", asm_out_file); |
2e4b9b8c | 873 | assemble_name (asm_out_file, lab1); |
5e3929ed | 874 | putc ('-', asm_out_file); |
e53b6e56 | 875 | /* dwarf2out.cc might give us a label expression (e.g. .LVL548-1) |
7728669d MW |
876 | as second argument. If so, make it a subexpression, to make |
877 | sure the substraction is done in the right order. */ | |
878 | if (strchr (lab2, '-') != NULL) | |
879 | { | |
880 | putc ('(', asm_out_file); | |
881 | assemble_name (asm_out_file, lab2); | |
882 | putc (')', asm_out_file); | |
883 | } | |
884 | else | |
885 | assemble_name (asm_out_file, lab2); | |
2e4b9b8c RH |
886 | |
887 | if (flag_debug_asm && comment) | |
888 | { | |
889 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
890 | vfprintf (asm_out_file, comment, ap); | |
891 | } | |
892 | fputc ('\n', asm_out_file); | |
893 | ||
e34d07f2 | 894 | va_end (ap); |
2e4b9b8c RH |
895 | } |
896 | ||
c8f4fe99 BE |
897 | #if 0 |
898 | ||
2e4b9b8c | 899 | void |
e34d07f2 KG |
900 | dw2_asm_output_delta_sleb128 (const char *lab1 ATTRIBUTE_UNUSED, |
901 | const char *lab2 ATTRIBUTE_UNUSED, | |
902 | const char *comment, ...) | |
2e4b9b8c | 903 | { |
e34d07f2 | 904 | va_list ap; |
7080f735 | 905 | |
e34d07f2 | 906 | va_start (ap, comment); |
2e4b9b8c | 907 | |
61214be1 TS |
908 | gcc_assert (HAVE_AS_LEB128); |
909 | ||
da6af203 | 910 | fputs ("\t.sleb128 ", asm_out_file); |
2e4b9b8c | 911 | assemble_name (asm_out_file, lab1); |
5e3929ed | 912 | putc ('-', asm_out_file); |
2e4b9b8c | 913 | assemble_name (asm_out_file, lab2); |
2e4b9b8c RH |
914 | |
915 | if (flag_debug_asm && comment) | |
916 | { | |
917 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
918 | vfprintf (asm_out_file, comment, ap); | |
919 | } | |
920 | fputc ('\n', asm_out_file); | |
921 | ||
e34d07f2 | 922 | va_end (ap); |
2e4b9b8c | 923 | } |
c8f4fe99 | 924 | #endif /* 0 */ |
2a1ee410 | 925 | \f |
de144fb2 | 926 | static GTY(()) hash_map<const char *, tree> *indirect_pool; |
17211ab5 GK |
927 | |
928 | static GTY(()) int dw2_const_labelno; | |
2a1ee410 | 929 | |
f31d9224 | 930 | #if defined(HAVE_GAS_HIDDEN) |
7abcdb06 | 931 | # define USE_LINKONCE_INDIRECT (SUPPORTS_ONE_ONLY && !XCOFF_DEBUGGING_INFO) |
d6d26764 JJ |
932 | #else |
933 | # define USE_LINKONCE_INDIRECT 0 | |
934 | #endif | |
935 | ||
de144fb2 TS |
936 | /* Compare two std::pair<const char *, tree> by their first element. |
937 | Returns <0, 0, or | |
dc1327cd AO |
938 | >0 to indicate whether K1 is less than, equal to, or greater than |
939 | K2, respectively. */ | |
940 | ||
941 | static int | |
de144fb2 | 942 | compare_strings (const void *a, const void *b) |
dc1327cd | 943 | { |
de144fb2 TS |
944 | const char *s1 = ((const std::pair<const char *, tree> *) a)->first; |
945 | const char *s2 = ((const std::pair<const char *, tree> *) b)->first; | |
dc1327cd AO |
946 | int ret; |
947 | ||
948 | if (s1 == s2) | |
949 | return 0; | |
950 | ||
951 | ret = strcmp (s1, s2); | |
952 | ||
953 | /* The strings are always those from IDENTIFIER_NODEs, and, | |
954 | therefore, we should never have two copies of the same | |
955 | string. */ | |
956 | gcc_assert (ret); | |
957 | ||
958 | return ret; | |
959 | } | |
960 | ||
e1f9550a RH |
961 | /* Put X, a SYMBOL_REF, in memory. Return a SYMBOL_REF to the allocated |
962 | memory. Differs from force_const_mem in that a single pool is used for | |
963 | the entire unit of translation, and the memory is not guaranteed to be | |
d858f359 | 964 | "near" the function in any interesting sense. IS_PUBLIC controls whether |
b03e9863 | 965 | the symbol can be shared across the entire application (or DSO). */ |
e1f9550a | 966 | |
d4ea4622 | 967 | rtx |
d858f359 | 968 | dw2_force_const_mem (rtx x, bool is_public) |
2a1ee410 | 969 | { |
a2649528 | 970 | const char *key; |
78bd9046 | 971 | tree decl_id; |
2a1ee410 RH |
972 | |
973 | if (! indirect_pool) | |
de144fb2 | 974 | indirect_pool = hash_map<const char *, tree>::create_ggc (64); |
2a1ee410 | 975 | |
ced3f397 | 976 | gcc_assert (GET_CODE (x) == SYMBOL_REF); |
1ee9fb20 | 977 | |
a2649528 | 978 | key = XSTR (x, 0); |
de144fb2 TS |
979 | tree *slot = indirect_pool->get (key); |
980 | if (slot) | |
981 | decl_id = *slot; | |
2a1ee410 RH |
982 | else |
983 | { | |
2a1ee410 | 984 | tree id; |
a2649528 | 985 | const char *str = targetm.strip_name_encoding (key); |
2a1ee410 | 986 | |
d858f359 | 987 | if (is_public && USE_LINKONCE_INDIRECT) |
d6d26764 | 988 | { |
f883e0a7 | 989 | char *ref_name = XALLOCAVEC (char, strlen (str) + sizeof "DW.ref."); |
d6d26764 | 990 | |
1ee9fb20 | 991 | sprintf (ref_name, "DW.ref.%s", str); |
78bd9046 AO |
992 | gcc_assert (!maybe_get_identifier (ref_name)); |
993 | decl_id = get_identifier (ref_name); | |
994 | TREE_PUBLIC (decl_id) = 1; | |
d6d26764 JJ |
995 | } |
996 | else | |
997 | { | |
d6d26764 JJ |
998 | char label[32]; |
999 | ||
17211ab5 GK |
1000 | ASM_GENERATE_INTERNAL_LABEL (label, "LDFCM", dw2_const_labelno); |
1001 | ++dw2_const_labelno; | |
78bd9046 AO |
1002 | gcc_assert (!maybe_get_identifier (label)); |
1003 | decl_id = get_identifier (label); | |
d6d26764 | 1004 | } |
2a1ee410 | 1005 | |
1ee9fb20 | 1006 | id = maybe_get_identifier (str); |
2a1ee410 RH |
1007 | if (id) |
1008 | TREE_SYMBOL_REFERENCED (id) = 1; | |
1009 | ||
de144fb2 | 1010 | indirect_pool->put (key, decl_id); |
2a1ee410 RH |
1011 | } |
1012 | ||
78bd9046 | 1013 | return gen_rtx_SYMBOL_REF (Pmode, IDENTIFIER_POINTER (decl_id)); |
2a1ee410 RH |
1014 | } |
1015 | ||
de144fb2 TS |
1016 | /* A helper function for dw2_output_indirect_constants. Emit one queued |
1017 | constant to memory. */ | |
e1f9550a | 1018 | |
2a1ee410 | 1019 | static int |
de144fb2 | 1020 | dw2_output_indirect_constant_1 (const char *sym, tree id) |
2a1ee410 | 1021 | { |
2a1ee410 | 1022 | rtx sym_ref; |
de144fb2 | 1023 | tree decl; |
78bd9046 | 1024 | |
c2255bc4 | 1025 | decl = build_decl (UNKNOWN_LOCATION, VAR_DECL, id, ptr_type_node); |
9937ab02 | 1026 | SET_DECL_ASSEMBLER_NAME (decl, id); |
78bd9046 AO |
1027 | DECL_ARTIFICIAL (decl) = 1; |
1028 | DECL_IGNORED_P (decl) = 1; | |
90841d43 | 1029 | DECL_INITIAL (decl) = build_fold_addr_expr (decl); |
3895ec53 | 1030 | TREE_READONLY (decl) = 1; |
56f3e9ac | 1031 | TREE_STATIC (decl) = 1; |
78bd9046 AO |
1032 | |
1033 | if (TREE_PUBLIC (id)) | |
1034 | { | |
1035 | TREE_PUBLIC (decl) = 1; | |
fc26fae3 | 1036 | make_decl_one_only (decl, DECL_ASSEMBLER_NAME (decl)); |
ee610fcd RO |
1037 | if (USE_LINKONCE_INDIRECT) |
1038 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
78bd9046 | 1039 | } |
78bd9046 | 1040 | |
2a1ee410 | 1041 | sym_ref = gen_rtx_SYMBOL_REF (Pmode, sym); |
058494f9 MO |
1042 | /* Disable ASan for decl because redzones cause ABI breakage between GCC and |
1043 | libstdc++ for `.LDFCM*' variables. See PR 78651 for details. */ | |
1044 | unsigned int save_flag_sanitize = flag_sanitize; | |
1045 | flag_sanitize &= ~(SANITIZE_ADDRESS | SANITIZE_USER_ADDRESS | |
1046 | | SANITIZE_KERNEL_ADDRESS); | |
d64257a4 JJ |
1047 | /* And also temporarily disable -fsection-anchors. These indirect constants |
1048 | are never referenced from code, so it doesn't make any sense to aggregate | |
1049 | them in blocks. */ | |
1050 | int save_flag_section_anchors = flag_section_anchors; | |
1051 | flag_section_anchors = 0; | |
b03e9863 | 1052 | assemble_variable (decl, 1, 1, 1); |
d64257a4 | 1053 | flag_section_anchors = save_flag_section_anchors; |
058494f9 | 1054 | flag_sanitize = save_flag_sanitize; |
50b6ee8b | 1055 | assemble_integer (sym_ref, POINTER_SIZE_UNITS, POINTER_SIZE, 1); |
f13ed3ed JJ |
1056 | /* The following is a hack recognized by use_blocks_for_decl_p to disable |
1057 | section anchor handling of the decl. */ | |
1058 | DECL_INITIAL (decl) = decl; | |
2a1ee410 RH |
1059 | |
1060 | return 0; | |
1061 | } | |
1062 | ||
e1f9550a RH |
1063 | /* Emit the constants queued through dw2_force_const_mem. */ |
1064 | ||
2a1ee410 | 1065 | void |
7080f735 | 1066 | dw2_output_indirect_constants (void) |
2a1ee410 | 1067 | { |
de144fb2 TS |
1068 | if (!indirect_pool) |
1069 | return; | |
1070 | ||
1071 | auto_vec<std::pair<const char *, tree> > temp (indirect_pool->elements ()); | |
1072 | for (hash_map<const char *, tree>::iterator iter = indirect_pool->begin (); | |
1073 | iter != indirect_pool->end (); ++iter) | |
1074 | temp.quick_push (*iter); | |
1075 | ||
21c0a521 | 1076 | temp.qsort (compare_strings); |
de144fb2 | 1077 | |
21c0a521 | 1078 | for (unsigned int i = 0; i < temp.length (); i++) |
de144fb2 | 1079 | dw2_output_indirect_constant_1 (temp[i].first, temp[i].second); |
2a1ee410 RH |
1080 | } |
1081 | ||
b03e9863 EB |
1082 | /* Like dw2_asm_output_addr_rtx, but encode the pointer as directed. |
1083 | If PUBLIC is set and the encoding is DW_EH_PE_indirect, the indirect | |
1084 | reference is shared across the entire application (or DSO). */ | |
e1f9550a | 1085 | |
2a1ee410 | 1086 | void |
d858f359 | 1087 | dw2_asm_output_encoded_addr_rtx (int encoding, rtx addr, bool is_public, |
e34d07f2 | 1088 | const char *comment, ...) |
2a1ee410 RH |
1089 | { |
1090 | int size; | |
e34d07f2 | 1091 | va_list ap; |
7080f735 | 1092 | |
e34d07f2 | 1093 | va_start (ap, comment); |
e1f9550a RH |
1094 | |
1095 | size = size_of_encoded_value (encoding); | |
2a1ee410 | 1096 | |
099c8b17 RH |
1097 | if (encoding == DW_EH_PE_aligned) |
1098 | { | |
1099 | assemble_align (POINTER_SIZE); | |
9f5cd0c5 | 1100 | assemble_integer (addr, size, POINTER_SIZE, 1); |
0edf1bb2 | 1101 | va_end (ap); |
9f5cd0c5 | 1102 | return; |
099c8b17 RH |
1103 | } |
1104 | ||
3248917b RK |
1105 | /* NULL is _always_ represented as a plain zero, as is 1 for Ada's |
1106 | "all others". */ | |
1107 | if (addr == const0_rtx || addr == const1_rtx) | |
c8af3574 | 1108 | assemble_integer (addr, size, BITS_PER_UNIT, 1); |
e1f9550a | 1109 | else |
2a1ee410 | 1110 | { |
e1f9550a RH |
1111 | restart: |
1112 | /* Allow the target first crack at emitting this. Some of the | |
3a538a66 | 1113 | special relocations require special directives instead of |
e1f9550a | 1114 | just ".4byte" or whatever. */ |
2a1ee410 | 1115 | #ifdef ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX |
e1f9550a RH |
1116 | ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX (asm_out_file, encoding, size, |
1117 | addr, done); | |
2a1ee410 RH |
1118 | #endif |
1119 | ||
e1f9550a RH |
1120 | /* Indirection is used to get dynamic relocations out of a |
1121 | read-only section. */ | |
1122 | if (encoding & DW_EH_PE_indirect) | |
1123 | { | |
1124 | /* It is very tempting to use force_const_mem so that we share data | |
1125 | with the normal constant pool. However, we've already emitted | |
1126 | the constant pool for this function. Moreover, we'd like to | |
b03e9863 EB |
1127 | share these constants across the entire unit of translation and |
1128 | even, if possible, across the entire application (or DSO). */ | |
d858f359 | 1129 | addr = dw2_force_const_mem (addr, is_public); |
e1f9550a RH |
1130 | encoding &= ~DW_EH_PE_indirect; |
1131 | goto restart; | |
1132 | } | |
2a1ee410 | 1133 | |
e1f9550a RH |
1134 | switch (encoding & 0xF0) |
1135 | { | |
1136 | case DW_EH_PE_absptr: | |
301d03af | 1137 | dw2_assemble_integer (size, addr); |
e1f9550a | 1138 | break; |
2a1ee410 | 1139 | |
04218b35 AD |
1140 | #ifdef ASM_OUTPUT_DWARF_DATAREL |
1141 | case DW_EH_PE_datarel: | |
1142 | gcc_assert (GET_CODE (addr) == SYMBOL_REF); | |
1143 | ASM_OUTPUT_DWARF_DATAREL (asm_out_file, size, XSTR (addr, 0)); | |
1144 | break; | |
1145 | #endif | |
1146 | ||
e1f9550a | 1147 | case DW_EH_PE_pcrel: |
ced3f397 | 1148 | gcc_assert (GET_CODE (addr) == SYMBOL_REF); |
2a1ee410 | 1149 | #ifdef ASM_OUTPUT_DWARF_PCREL |
e1f9550a | 1150 | ASM_OUTPUT_DWARF_PCREL (asm_out_file, size, XSTR (addr, 0)); |
2a1ee410 | 1151 | #else |
301d03af | 1152 | dw2_assemble_integer (size, gen_rtx_MINUS (Pmode, addr, pc_rtx)); |
2a1ee410 | 1153 | #endif |
e1f9550a | 1154 | break; |
2a1ee410 | 1155 | |
e1f9550a | 1156 | default: |
3a538a66 | 1157 | /* Other encodings should have been handled by |
e1f9550a | 1158 | ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX. */ |
ced3f397 | 1159 | gcc_unreachable (); |
e1f9550a | 1160 | } |
2a1ee410 RH |
1161 | |
1162 | #ifdef ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX | |
e1f9550a | 1163 | done:; |
2a1ee410 | 1164 | #endif |
e1f9550a RH |
1165 | } |
1166 | ||
1167 | if (flag_debug_asm && comment) | |
1168 | { | |
1169 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
1170 | vfprintf (asm_out_file, comment, ap); | |
1171 | } | |
2a1ee410 | 1172 | fputc ('\n', asm_out_file); |
e1f9550a | 1173 | |
e34d07f2 | 1174 | va_end (ap); |
2a1ee410 | 1175 | } |
17211ab5 GK |
1176 | |
1177 | #include "gt-dwarf2asm.h" |