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ca98eb0a | 1 | /* Dwarf2 assembler output helper routines. |
71e45bc2 | 2 | Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011, |
3 | 2012 Free Software Foundation, Inc. | |
ca98eb0a | 4 | |
f12b58b3 | 5 | This file is part of GCC. |
ca98eb0a | 6 | |
f12b58b3 | 7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
8c4c00c1 | 9 | Software Foundation; either version 3, or (at your option) any later |
f12b58b3 | 10 | version. |
ca98eb0a | 11 | |
f12b58b3 | 12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
ca98eb0a | 16 | |
17 | You should have received a copy of the GNU General Public License | |
8c4c00c1 | 18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
ca98eb0a | 20 | |
21 | ||
22 | #include "config.h" | |
23 | #include "system.h" | |
805e22b2 | 24 | #include "coretypes.h" |
25 | #include "tm.h" | |
ca98eb0a | 26 | #include "flags.h" |
ad5818ae | 27 | #include "tree.h" |
ca98eb0a | 28 | #include "rtl.h" |
29 | #include "output.h" | |
58356836 | 30 | #include "target.h" |
ca98eb0a | 31 | #include "dwarf2asm.h" |
bde36f4a | 32 | #include "dwarf2.h" |
ad5818ae | 33 | #include "splay-tree.h" |
34 | #include "ggc.h" | |
ca98eb0a | 35 | #include "tm_p.h" |
36 | ||
ca98eb0a | 37 | \f |
58356836 | 38 | /* Output an unaligned integer with the given value and size. Prefer not |
39 | to print a newline, since the caller may want to add a comment. */ | |
40 | ||
41 | void | |
8ec3a57b | 42 | dw2_assemble_integer (int size, rtx x) |
ca98eb0a | 43 | { |
58356836 | 44 | const char *op = integer_asm_op (size, FALSE); |
45 | ||
46 | if (op) | |
ca98eb0a | 47 | { |
58356836 | 48 | fputs (op, asm_out_file); |
971ba038 | 49 | if (CONST_INT_P (x)) |
c0e76f1f | 50 | fprint_whex (asm_out_file, (unsigned HOST_WIDE_INT) INTVAL (x)); |
58356836 | 51 | else |
52 | output_addr_const (asm_out_file, x); | |
ca98eb0a | 53 | } |
58356836 | 54 | else |
55 | assemble_integer (x, size, BITS_PER_UNIT, 1); | |
ca98eb0a | 56 | } |
1eefe280 | 57 | |
ca98eb0a | 58 | |
fb39ff6e | 59 | /* Output a value of a given size in target byte order. */ |
60 | ||
61 | void | |
62 | dw2_asm_output_data_raw (int size, unsigned HOST_WIDE_INT value) | |
63 | { | |
64 | unsigned char bytes[8]; | |
65 | int i; | |
66 | ||
67 | for (i = 0; i < 8; ++i) | |
68 | { | |
69 | bytes[i] = value & 0xff; | |
70 | value >>= 8; | |
71 | } | |
72 | ||
73 | if (BYTES_BIG_ENDIAN) | |
74 | { | |
75 | for (i = size - 1; i > 0; --i) | |
3eb9ad16 | 76 | fprintf (asm_out_file, "%#x,", bytes[i]); |
77 | fprintf (asm_out_file, "%#x", bytes[0]); | |
fb39ff6e | 78 | } |
79 | else | |
80 | { | |
81 | for (i = 0; i < size - 1; ++i) | |
3eb9ad16 | 82 | fprintf (asm_out_file, "%#x,", bytes[i]); |
83 | fprintf (asm_out_file, "%#x", bytes[i]); | |
fb39ff6e | 84 | } |
85 | } | |
86 | ||
76ee6ef2 | 87 | /* Output an immediate constant in a given SIZE in bytes. */ |
19e5668c | 88 | |
ca98eb0a | 89 | void |
ee582a61 | 90 | dw2_asm_output_data (int size, unsigned HOST_WIDE_INT value, |
91 | const char *comment, ...) | |
ca98eb0a | 92 | { |
ee582a61 | 93 | va_list ap; |
08365969 | 94 | const char *op = integer_asm_op (size, FALSE); |
8ec3a57b | 95 | |
ee582a61 | 96 | va_start (ap, comment); |
ca98eb0a | 97 | |
8de0b9f7 | 98 | if (size * 8 < HOST_BITS_PER_WIDE_INT) |
dfe09cce | 99 | value &= ~(~(unsigned HOST_WIDE_INT) 0 << (size * 8)); |
8de0b9f7 | 100 | |
08365969 | 101 | if (op) |
c0e76f1f | 102 | { |
103 | fputs (op, asm_out_file); | |
104 | fprint_whex (asm_out_file, value); | |
105 | } | |
08365969 | 106 | else |
107 | assemble_integer (GEN_INT (value), size, BITS_PER_UNIT, 1); | |
ca98eb0a | 108 | |
109 | if (flag_debug_asm && comment) | |
110 | { | |
c0e76f1f | 111 | fputs ("\t" ASM_COMMENT_START " ", asm_out_file); |
ca98eb0a | 112 | vfprintf (asm_out_file, comment, ap); |
113 | } | |
c0e76f1f | 114 | putc ('\n', asm_out_file); |
ca98eb0a | 115 | |
ee582a61 | 116 | va_end (ap); |
ca98eb0a | 117 | } |
118 | ||
19e5668c | 119 | /* Output the difference between two symbols in a given size. */ |
120 | /* ??? There appear to be assemblers that do not like such | |
121 | subtraction, but do support ASM_SET_OP. It's unfortunately | |
122 | impossible to do here, since the ASM_SET_OP for the difference | |
123 | symbol must appear after both symbols are defined. */ | |
124 | ||
ca98eb0a | 125 | void |
ee582a61 | 126 | dw2_asm_output_delta (int size, const char *lab1, const char *lab2, |
127 | const char *comment, ...) | |
ca98eb0a | 128 | { |
ee582a61 | 129 | va_list ap; |
8ec3a57b | 130 | |
ee582a61 | 131 | va_start (ap, comment); |
ca98eb0a | 132 | |
a08b74c8 | 133 | #ifdef ASM_OUTPUT_DWARF_DELTA |
134 | ASM_OUTPUT_DWARF_DELTA (asm_out_file, size, lab1, lab2); | |
135 | #else | |
58356836 | 136 | dw2_assemble_integer (size, |
137 | gen_rtx_MINUS (Pmode, | |
138 | gen_rtx_SYMBOL_REF (Pmode, lab1), | |
139 | gen_rtx_SYMBOL_REF (Pmode, lab2))); | |
a08b74c8 | 140 | #endif |
ca98eb0a | 141 | if (flag_debug_asm && comment) |
142 | { | |
143 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
144 | vfprintf (asm_out_file, comment, ap); | |
145 | } | |
146 | fputc ('\n', asm_out_file); | |
147 | ||
ee582a61 | 148 | va_end (ap); |
ca98eb0a | 149 | } |
150 | ||
cfe7b52e | 151 | /* Output the difference between two symbols in instruction units |
152 | in a given size. */ | |
153 | ||
154 | void | |
155 | dw2_asm_output_vms_delta (int size ATTRIBUTE_UNUSED, | |
156 | const char *lab1, const char *lab2, | |
157 | const char *comment, ...) | |
158 | { | |
159 | va_list ap; | |
160 | ||
161 | va_start (ap, comment); | |
162 | ||
163 | #ifndef ASM_OUTPUT_DWARF_VMS_DELTA | |
9d75589a | 164 | /* VMS Delta is only special on ia64-vms, but this function also gets |
cfe7b52e | 165 | called on alpha-vms so it has to do something sane. */ |
166 | dw2_asm_output_delta (size, lab1, lab2, comment); | |
167 | #else | |
168 | ASM_OUTPUT_DWARF_VMS_DELTA (asm_out_file, size, lab1, lab2); | |
169 | if (flag_debug_asm && comment) | |
170 | { | |
171 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
172 | vfprintf (asm_out_file, comment, ap); | |
173 | } | |
174 | fputc ('\n', asm_out_file); | |
175 | #endif | |
176 | ||
177 | va_end (ap); | |
178 | } | |
179 | ||
d08d29c0 | 180 | /* Output a section-relative reference to a LABEL, which was placed in |
181 | BASE. In general this can only be done for debugging symbols. | |
182 | E.g. on most targets with the GNU linker, this is accomplished with | |
183 | a direct reference and the knowledge that the debugging section | |
184 | will be placed at VMA 0. Some targets have special relocations for | |
185 | this that we must use. */ | |
19e5668c | 186 | |
ca98eb0a | 187 | void |
e056afd2 | 188 | dw2_asm_output_offset (int size, const char *label, |
189 | section *base ATTRIBUTE_UNUSED, | |
ee582a61 | 190 | const char *comment, ...) |
ca98eb0a | 191 | { |
ee582a61 | 192 | va_list ap; |
8ec3a57b | 193 | |
ee582a61 | 194 | va_start (ap, comment); |
ca98eb0a | 195 | |
19e5668c | 196 | #ifdef ASM_OUTPUT_DWARF_OFFSET |
d08d29c0 | 197 | ASM_OUTPUT_DWARF_OFFSET (asm_out_file, size, label, base); |
19e5668c | 198 | #else |
58356836 | 199 | dw2_assemble_integer (size, gen_rtx_SYMBOL_REF (Pmode, label)); |
ca98eb0a | 200 | #endif |
201 | ||
202 | if (flag_debug_asm && comment) | |
203 | { | |
204 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
205 | vfprintf (asm_out_file, comment, ap); | |
206 | } | |
207 | fputc ('\n', asm_out_file); | |
208 | ||
ee582a61 | 209 | va_end (ap); |
ca98eb0a | 210 | } |
211 | ||
31ac8297 | 212 | #if 0 |
213 | ||
19e5668c | 214 | /* Output a self-relative reference to a label, possibly in a |
215 | different section or object file. */ | |
216 | ||
ca98eb0a | 217 | void |
ee582a61 | 218 | dw2_asm_output_pcrel (int size ATTRIBUTE_UNUSED, |
219 | const char *label ATTRIBUTE_UNUSED, | |
220 | const char *comment, ...) | |
ca98eb0a | 221 | { |
ee582a61 | 222 | va_list ap; |
8ec3a57b | 223 | |
ee582a61 | 224 | va_start (ap, comment); |
ca98eb0a | 225 | |
19e5668c | 226 | #ifdef ASM_OUTPUT_DWARF_PCREL |
227 | ASM_OUTPUT_DWARF_PCREL (asm_out_file, size, label); | |
228 | #else | |
58356836 | 229 | dw2_assemble_integer (size, |
230 | gen_rtx_MINUS (Pmode, | |
231 | gen_rtx_SYMBOL_REF (Pmode, label), | |
232 | pc_rtx)); | |
19e5668c | 233 | #endif |
234 | ||
235 | if (flag_debug_asm && comment) | |
236 | { | |
237 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
238 | vfprintf (asm_out_file, comment, ap); | |
239 | } | |
240 | fputc ('\n', asm_out_file); | |
241 | ||
ee582a61 | 242 | va_end (ap); |
19e5668c | 243 | } |
31ac8297 | 244 | #endif /* 0 */ |
19e5668c | 245 | |
246 | /* Output an absolute reference to a label. */ | |
247 | ||
248 | void | |
ee582a61 | 249 | dw2_asm_output_addr (int size, const char *label, |
250 | const char *comment, ...) | |
19e5668c | 251 | { |
ee582a61 | 252 | va_list ap; |
8ec3a57b | 253 | |
ee582a61 | 254 | va_start (ap, comment); |
19e5668c | 255 | |
58356836 | 256 | dw2_assemble_integer (size, gen_rtx_SYMBOL_REF (Pmode, label)); |
ca98eb0a | 257 | |
258 | if (flag_debug_asm && comment) | |
259 | { | |
260 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
261 | vfprintf (asm_out_file, comment, ap); | |
262 | } | |
263 | fputc ('\n', asm_out_file); | |
264 | ||
ee582a61 | 265 | va_end (ap); |
ca98eb0a | 266 | } |
267 | ||
19e5668c | 268 | /* Similar, but use an RTX expression instead of a text label. */ |
269 | ||
ca98eb0a | 270 | void |
ee582a61 | 271 | dw2_asm_output_addr_rtx (int size, rtx addr, |
272 | const char *comment, ...) | |
ca98eb0a | 273 | { |
ee582a61 | 274 | va_list ap; |
8ec3a57b | 275 | |
ee582a61 | 276 | va_start (ap, comment); |
ca98eb0a | 277 | |
58356836 | 278 | dw2_assemble_integer (size, addr); |
ca98eb0a | 279 | |
280 | if (flag_debug_asm && comment) | |
281 | { | |
282 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
283 | vfprintf (asm_out_file, comment, ap); | |
284 | } | |
285 | fputc ('\n', asm_out_file); | |
286 | ||
ee582a61 | 287 | va_end (ap); |
ca98eb0a | 288 | } |
289 | ||
21f8688e | 290 | /* Output the first ORIG_LEN characters of STR as a string. |
291 | If ORIG_LEN is equal to -1, ignore this parameter and output | |
292 | the entire STR instead. | |
293 | If COMMENT is not NULL and comments in the debug information | |
294 | have been requested by the user, append the given COMMENT | |
295 | to the generated output. */ | |
48e1416a | 296 | |
ca98eb0a | 297 | void |
ee582a61 | 298 | dw2_asm_output_nstring (const char *str, size_t orig_len, |
299 | const char *comment, ...) | |
ca98eb0a | 300 | { |
0903457a | 301 | size_t i, len; |
ee582a61 | 302 | va_list ap; |
ca98eb0a | 303 | |
ee582a61 | 304 | va_start (ap, comment); |
ca98eb0a | 305 | |
0903457a | 306 | len = orig_len; |
ca98eb0a | 307 | |
308 | if (len == (size_t) -1) | |
309 | len = strlen (str); | |
310 | ||
311 | if (flag_debug_asm && comment) | |
312 | { | |
313 | fputs ("\t.ascii \"", asm_out_file); | |
314 | for (i = 0; i < len; i++) | |
315 | { | |
316 | int c = str[i]; | |
317 | if (c == '\"' || c == '\\') | |
318 | fputc ('\\', asm_out_file); | |
319 | if (ISPRINT(c)) | |
320 | fputc (c, asm_out_file); | |
321 | else | |
322 | fprintf (asm_out_file, "\\%o", c); | |
323 | } | |
324 | fprintf (asm_out_file, "\\0\"\t%s ", ASM_COMMENT_START); | |
325 | vfprintf (asm_out_file, comment, ap); | |
326 | fputc ('\n', asm_out_file); | |
327 | } | |
328 | else | |
329 | { | |
330 | /* If an explicit length was given, we can't assume there | |
331 | is a null termination in the string buffer. */ | |
332 | if (orig_len == (size_t) -1) | |
333 | len += 1; | |
334 | ASM_OUTPUT_ASCII (asm_out_file, str, len); | |
335 | if (orig_len != (size_t) -1) | |
58356836 | 336 | assemble_integer (const0_rtx, 1, BITS_PER_UNIT, 1); |
ca98eb0a | 337 | } |
338 | ||
ee582a61 | 339 | va_end (ap); |
ca98eb0a | 340 | } |
341 | \f | |
342 | ||
343 | /* Return the size of an unsigned LEB128 quantity. */ | |
344 | ||
345 | int | |
8ec3a57b | 346 | size_of_uleb128 (unsigned HOST_WIDE_INT value) |
ca98eb0a | 347 | { |
805e22b2 | 348 | int size = 0; |
ca98eb0a | 349 | |
350 | do | |
351 | { | |
ca98eb0a | 352 | value >>= 7; |
353 | size += 1; | |
354 | } | |
355 | while (value != 0); | |
356 | ||
357 | return size; | |
358 | } | |
359 | ||
360 | /* Return the size of a signed LEB128 quantity. */ | |
361 | ||
362 | int | |
8ec3a57b | 363 | size_of_sleb128 (HOST_WIDE_INT value) |
ca98eb0a | 364 | { |
365 | int size = 0, byte; | |
366 | ||
367 | do | |
368 | { | |
369 | byte = (value & 0x7f); | |
370 | value >>= 7; | |
371 | size += 1; | |
372 | } | |
373 | while (!((value == 0 && (byte & 0x40) == 0) | |
374 | || (value == -1 && (byte & 0x40) != 0))); | |
375 | ||
376 | return size; | |
377 | } | |
378 | ||
631413ff | 379 | /* Given an encoding, return the number of bytes the format occupies. |
1eefe280 | 380 | This is only defined for fixed-size encodings, and so does not |
631413ff | 381 | include leb128. */ |
382 | ||
383 | int | |
8ec3a57b | 384 | size_of_encoded_value (int encoding) |
631413ff | 385 | { |
386 | if (encoding == DW_EH_PE_omit) | |
387 | return 0; | |
388 | ||
389 | switch (encoding & 0x07) | |
390 | { | |
391 | case DW_EH_PE_absptr: | |
392 | return POINTER_SIZE / BITS_PER_UNIT; | |
393 | case DW_EH_PE_udata2: | |
394 | return 2; | |
395 | case DW_EH_PE_udata4: | |
396 | return 4; | |
397 | case DW_EH_PE_udata8: | |
398 | return 8; | |
7bd4f6b6 | 399 | default: |
400 | gcc_unreachable (); | |
631413ff | 401 | } |
631413ff | 402 | } |
403 | ||
9b84bf7d | 404 | /* Yield a name for a given pointer encoding. */ |
405 | ||
406 | const char * | |
8ec3a57b | 407 | eh_data_format_name (int format) |
9b84bf7d | 408 | { |
409 | #if HAVE_DESIGNATED_INITIALIZERS | |
410 | #define S(p, v) [p] = v, | |
411 | #else | |
412 | #define S(p, v) case p: return v; | |
413 | #endif | |
414 | ||
415 | #if HAVE_DESIGNATED_INITIALIZERS | |
416 | __extension__ static const char * const format_names[256] = { | |
417 | #else | |
418 | switch (format) { | |
419 | #endif | |
420 | ||
421 | S(DW_EH_PE_absptr, "absolute") | |
422 | S(DW_EH_PE_omit, "omit") | |
9a4d22ba | 423 | S(DW_EH_PE_aligned, "aligned absolute") |
9b84bf7d | 424 | |
425 | S(DW_EH_PE_uleb128, "uleb128") | |
426 | S(DW_EH_PE_udata2, "udata2") | |
427 | S(DW_EH_PE_udata4, "udata4") | |
428 | S(DW_EH_PE_udata8, "udata8") | |
429 | S(DW_EH_PE_sleb128, "sleb128") | |
430 | S(DW_EH_PE_sdata2, "sdata2") | |
431 | S(DW_EH_PE_sdata4, "sdata4") | |
432 | S(DW_EH_PE_sdata8, "sdata8") | |
433 | ||
ffaf0c47 | 434 | S(DW_EH_PE_absptr | DW_EH_PE_pcrel, "pcrel") |
9b84bf7d | 435 | S(DW_EH_PE_uleb128 | DW_EH_PE_pcrel, "pcrel uleb128") |
436 | S(DW_EH_PE_udata2 | DW_EH_PE_pcrel, "pcrel udata2") | |
437 | S(DW_EH_PE_udata4 | DW_EH_PE_pcrel, "pcrel udata4") | |
438 | S(DW_EH_PE_udata8 | DW_EH_PE_pcrel, "pcrel udata8") | |
439 | S(DW_EH_PE_sleb128 | DW_EH_PE_pcrel, "pcrel sleb128") | |
440 | S(DW_EH_PE_sdata2 | DW_EH_PE_pcrel, "pcrel sdata2") | |
441 | S(DW_EH_PE_sdata4 | DW_EH_PE_pcrel, "pcrel sdata4") | |
442 | S(DW_EH_PE_sdata8 | DW_EH_PE_pcrel, "pcrel sdata8") | |
443 | ||
ffaf0c47 | 444 | S(DW_EH_PE_absptr | DW_EH_PE_textrel, "textrel") |
9b84bf7d | 445 | S(DW_EH_PE_uleb128 | DW_EH_PE_textrel, "textrel uleb128") |
446 | S(DW_EH_PE_udata2 | DW_EH_PE_textrel, "textrel udata2") | |
447 | S(DW_EH_PE_udata4 | DW_EH_PE_textrel, "textrel udata4") | |
448 | S(DW_EH_PE_udata8 | DW_EH_PE_textrel, "textrel udata8") | |
449 | S(DW_EH_PE_sleb128 | DW_EH_PE_textrel, "textrel sleb128") | |
450 | S(DW_EH_PE_sdata2 | DW_EH_PE_textrel, "textrel sdata2") | |
451 | S(DW_EH_PE_sdata4 | DW_EH_PE_textrel, "textrel sdata4") | |
452 | S(DW_EH_PE_sdata8 | DW_EH_PE_textrel, "textrel sdata8") | |
453 | ||
ffaf0c47 | 454 | S(DW_EH_PE_absptr | DW_EH_PE_datarel, "datarel") |
9b84bf7d | 455 | S(DW_EH_PE_uleb128 | DW_EH_PE_datarel, "datarel uleb128") |
456 | S(DW_EH_PE_udata2 | DW_EH_PE_datarel, "datarel udata2") | |
457 | S(DW_EH_PE_udata4 | DW_EH_PE_datarel, "datarel udata4") | |
458 | S(DW_EH_PE_udata8 | DW_EH_PE_datarel, "datarel udata8") | |
459 | S(DW_EH_PE_sleb128 | DW_EH_PE_datarel, "datarel sleb128") | |
460 | S(DW_EH_PE_sdata2 | DW_EH_PE_datarel, "datarel sdata2") | |
461 | S(DW_EH_PE_sdata4 | DW_EH_PE_datarel, "datarel sdata4") | |
462 | S(DW_EH_PE_sdata8 | DW_EH_PE_datarel, "datarel sdata8") | |
463 | ||
ffaf0c47 | 464 | S(DW_EH_PE_absptr | DW_EH_PE_funcrel, "funcrel") |
9b84bf7d | 465 | S(DW_EH_PE_uleb128 | DW_EH_PE_funcrel, "funcrel uleb128") |
466 | S(DW_EH_PE_udata2 | DW_EH_PE_funcrel, "funcrel udata2") | |
467 | S(DW_EH_PE_udata4 | DW_EH_PE_funcrel, "funcrel udata4") | |
468 | S(DW_EH_PE_udata8 | DW_EH_PE_funcrel, "funcrel udata8") | |
469 | S(DW_EH_PE_sleb128 | DW_EH_PE_funcrel, "funcrel sleb128") | |
470 | S(DW_EH_PE_sdata2 | DW_EH_PE_funcrel, "funcrel sdata2") | |
471 | S(DW_EH_PE_sdata4 | DW_EH_PE_funcrel, "funcrel sdata4") | |
472 | S(DW_EH_PE_sdata8 | DW_EH_PE_funcrel, "funcrel sdata8") | |
473 | ||
c4cf26ad | 474 | S(DW_EH_PE_indirect | DW_EH_PE_absptr, "indirect absolute") |
475 | ||
ffaf0c47 | 476 | S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_pcrel, |
477 | "indirect pcrel") | |
9b84bf7d | 478 | S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_pcrel, |
479 | "indirect pcrel uleb128") | |
480 | S(DW_EH_PE_indirect | DW_EH_PE_udata2 | DW_EH_PE_pcrel, | |
481 | "indirect pcrel udata2") | |
482 | S(DW_EH_PE_indirect | DW_EH_PE_udata4 | DW_EH_PE_pcrel, | |
483 | "indirect pcrel udata4") | |
484 | S(DW_EH_PE_indirect | DW_EH_PE_udata8 | DW_EH_PE_pcrel, | |
485 | "indirect pcrel udata8") | |
486 | S(DW_EH_PE_indirect | DW_EH_PE_sleb128 | DW_EH_PE_pcrel, | |
487 | "indirect pcrel sleb128") | |
488 | S(DW_EH_PE_indirect | DW_EH_PE_sdata2 | DW_EH_PE_pcrel, | |
489 | "indirect pcrel sdata2") | |
490 | S(DW_EH_PE_indirect | DW_EH_PE_sdata4 | DW_EH_PE_pcrel, | |
491 | "indirect pcrel sdata4") | |
492 | S(DW_EH_PE_indirect | DW_EH_PE_sdata8 | DW_EH_PE_pcrel, | |
493 | "indirect pcrel sdata8") | |
494 | ||
ffaf0c47 | 495 | S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_textrel, |
496 | "indirect textrel") | |
9b84bf7d | 497 | S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_textrel, |
498 | "indirect textrel uleb128") | |
499 | S(DW_EH_PE_indirect | DW_EH_PE_udata2 | DW_EH_PE_textrel, | |
500 | "indirect textrel udata2") | |
501 | S(DW_EH_PE_indirect | DW_EH_PE_udata4 | DW_EH_PE_textrel, | |
502 | "indirect textrel udata4") | |
503 | S(DW_EH_PE_indirect | DW_EH_PE_udata8 | DW_EH_PE_textrel, | |
504 | "indirect textrel udata8") | |
505 | S(DW_EH_PE_indirect | DW_EH_PE_sleb128 | DW_EH_PE_textrel, | |
506 | "indirect textrel sleb128") | |
507 | S(DW_EH_PE_indirect | DW_EH_PE_sdata2 | DW_EH_PE_textrel, | |
508 | "indirect textrel sdata2") | |
509 | S(DW_EH_PE_indirect | DW_EH_PE_sdata4 | DW_EH_PE_textrel, | |
510 | "indirect textrel sdata4") | |
511 | S(DW_EH_PE_indirect | DW_EH_PE_sdata8 | DW_EH_PE_textrel, | |
512 | "indirect textrel sdata8") | |
513 | ||
ffaf0c47 | 514 | S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_datarel, |
515 | "indirect datarel") | |
9b84bf7d | 516 | S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_datarel, |
517 | "indirect datarel uleb128") | |
518 | S(DW_EH_PE_indirect | DW_EH_PE_udata2 | DW_EH_PE_datarel, | |
519 | "indirect datarel udata2") | |
520 | S(DW_EH_PE_indirect | DW_EH_PE_udata4 | DW_EH_PE_datarel, | |
521 | "indirect datarel udata4") | |
522 | S(DW_EH_PE_indirect | DW_EH_PE_udata8 | DW_EH_PE_datarel, | |
523 | "indirect datarel udata8") | |
524 | S(DW_EH_PE_indirect | DW_EH_PE_sleb128 | DW_EH_PE_datarel, | |
525 | "indirect datarel sleb128") | |
526 | S(DW_EH_PE_indirect | DW_EH_PE_sdata2 | DW_EH_PE_datarel, | |
527 | "indirect datarel sdata2") | |
528 | S(DW_EH_PE_indirect | DW_EH_PE_sdata4 | DW_EH_PE_datarel, | |
529 | "indirect datarel sdata4") | |
530 | S(DW_EH_PE_indirect | DW_EH_PE_sdata8 | DW_EH_PE_datarel, | |
531 | "indirect datarel sdata8") | |
532 | ||
ffaf0c47 | 533 | S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_funcrel, |
534 | "indirect funcrel") | |
9b84bf7d | 535 | S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_funcrel, |
536 | "indirect funcrel uleb128") | |
537 | S(DW_EH_PE_indirect | DW_EH_PE_udata2 | DW_EH_PE_funcrel, | |
538 | "indirect funcrel udata2") | |
539 | S(DW_EH_PE_indirect | DW_EH_PE_udata4 | DW_EH_PE_funcrel, | |
540 | "indirect funcrel udata4") | |
541 | S(DW_EH_PE_indirect | DW_EH_PE_udata8 | DW_EH_PE_funcrel, | |
542 | "indirect funcrel udata8") | |
543 | S(DW_EH_PE_indirect | DW_EH_PE_sleb128 | DW_EH_PE_funcrel, | |
544 | "indirect funcrel sleb128") | |
545 | S(DW_EH_PE_indirect | DW_EH_PE_sdata2 | DW_EH_PE_funcrel, | |
546 | "indirect funcrel sdata2") | |
547 | S(DW_EH_PE_indirect | DW_EH_PE_sdata4 | DW_EH_PE_funcrel, | |
548 | "indirect funcrel sdata4") | |
549 | S(DW_EH_PE_indirect | DW_EH_PE_sdata8 | DW_EH_PE_funcrel, | |
550 | "indirect funcrel sdata8") | |
551 | ||
552 | #if HAVE_DESIGNATED_INITIALIZERS | |
553 | }; | |
554 | ||
7bd4f6b6 | 555 | gcc_assert (format >= 0 && format < 0x100 && format_names[format]); |
48e1416a | 556 | |
9b84bf7d | 557 | return format_names[format]; |
558 | #else | |
559 | } | |
7bd4f6b6 | 560 | gcc_unreachable (); |
9b84bf7d | 561 | #endif |
562 | } | |
563 | ||
fb39ff6e | 564 | /* Output an unsigned LEB128 quantity, but only the byte values. */ |
565 | ||
566 | void | |
567 | dw2_asm_output_data_uleb128_raw (unsigned HOST_WIDE_INT value) | |
568 | { | |
569 | while (1) | |
570 | { | |
571 | int byte = (value & 0x7f); | |
572 | value >>= 7; | |
573 | if (value != 0) | |
574 | /* More bytes to follow. */ | |
575 | byte |= 0x80; | |
576 | ||
3eb9ad16 | 577 | fprintf (asm_out_file, "%#x", byte); |
fb39ff6e | 578 | if (value == 0) |
579 | break; | |
580 | fputc (',', asm_out_file); | |
581 | } | |
582 | } | |
583 | ||
ca98eb0a | 584 | /* Output an unsigned LEB128 quantity. */ |
585 | ||
586 | void | |
ee582a61 | 587 | dw2_asm_output_data_uleb128 (unsigned HOST_WIDE_INT value, |
588 | const char *comment, ...) | |
ca98eb0a | 589 | { |
ee582a61 | 590 | va_list ap; |
8ec3a57b | 591 | |
ee582a61 | 592 | va_start (ap, comment); |
ca98eb0a | 593 | |
594 | #ifdef HAVE_AS_LEB128 | |
c0e76f1f | 595 | fputs ("\t.uleb128 ", asm_out_file); |
596 | fprint_whex (asm_out_file, value); | |
ca98eb0a | 597 | |
598 | if (flag_debug_asm && comment) | |
599 | { | |
600 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
601 | vfprintf (asm_out_file, comment, ap); | |
602 | } | |
603 | #else | |
604 | { | |
605 | unsigned HOST_WIDE_INT work = value; | |
58356836 | 606 | const char *byte_op = targetm.asm_out.byte_op; |
ca98eb0a | 607 | |
58356836 | 608 | if (byte_op) |
609 | fputs (byte_op, asm_out_file); | |
ca98eb0a | 610 | do |
611 | { | |
612 | int byte = (work & 0x7f); | |
613 | work >>= 7; | |
614 | if (work != 0) | |
615 | /* More bytes to follow. */ | |
616 | byte |= 0x80; | |
617 | ||
58356836 | 618 | if (byte_op) |
619 | { | |
3eb9ad16 | 620 | fprintf (asm_out_file, "%#x", byte); |
58356836 | 621 | if (work != 0) |
622 | fputc (',', asm_out_file); | |
623 | } | |
624 | else | |
625 | assemble_integer (GEN_INT (byte), 1, BITS_PER_UNIT, 1); | |
ca98eb0a | 626 | } |
627 | while (work != 0); | |
628 | ||
629 | if (flag_debug_asm) | |
630 | { | |
85aa12f7 | 631 | fprintf (asm_out_file, "\t%s uleb128 " HOST_WIDE_INT_PRINT_HEX, |
632 | ASM_COMMENT_START, value); | |
ca98eb0a | 633 | if (comment) |
634 | { | |
635 | fputs ("; ", asm_out_file); | |
636 | vfprintf (asm_out_file, comment, ap); | |
637 | } | |
638 | } | |
639 | } | |
640 | #endif | |
c0e76f1f | 641 | putc ('\n', asm_out_file); |
ca98eb0a | 642 | |
ee582a61 | 643 | va_end (ap); |
ca98eb0a | 644 | } |
645 | ||
fb39ff6e | 646 | /* Output an signed LEB128 quantity, but only the byte values. */ |
647 | ||
648 | void | |
649 | dw2_asm_output_data_sleb128_raw (HOST_WIDE_INT value) | |
650 | { | |
651 | int byte, more; | |
652 | ||
653 | while (1) | |
654 | { | |
655 | byte = (value & 0x7f); | |
656 | value >>= 7; | |
657 | more = !((value == 0 && (byte & 0x40) == 0) | |
658 | || (value == -1 && (byte & 0x40) != 0)); | |
659 | if (more) | |
660 | byte |= 0x80; | |
661 | ||
3eb9ad16 | 662 | fprintf (asm_out_file, "%#x", byte); |
fb39ff6e | 663 | if (!more) |
664 | break; | |
665 | fputc (',', asm_out_file); | |
666 | } | |
667 | } | |
668 | ||
edc2a478 | 669 | /* Output a signed LEB128 quantity. */ |
ca98eb0a | 670 | |
671 | void | |
ee582a61 | 672 | dw2_asm_output_data_sleb128 (HOST_WIDE_INT value, |
673 | const char *comment, ...) | |
ca98eb0a | 674 | { |
ee582a61 | 675 | va_list ap; |
8ec3a57b | 676 | |
ee582a61 | 677 | va_start (ap, comment); |
ca98eb0a | 678 | |
679 | #ifdef HAVE_AS_LEB128 | |
85aa12f7 | 680 | fprintf (asm_out_file, "\t.sleb128 " HOST_WIDE_INT_PRINT_DEC, value); |
ca98eb0a | 681 | |
682 | if (flag_debug_asm && comment) | |
683 | { | |
684 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
685 | vfprintf (asm_out_file, comment, ap); | |
686 | } | |
687 | #else | |
688 | { | |
689 | HOST_WIDE_INT work = value; | |
690 | int more, byte; | |
58356836 | 691 | const char *byte_op = targetm.asm_out.byte_op; |
ca98eb0a | 692 | |
58356836 | 693 | if (byte_op) |
694 | fputs (byte_op, asm_out_file); | |
ca98eb0a | 695 | do |
696 | { | |
697 | byte = (work & 0x7f); | |
698 | /* arithmetic shift */ | |
699 | work >>= 7; | |
700 | more = !((work == 0 && (byte & 0x40) == 0) | |
701 | || (work == -1 && (byte & 0x40) != 0)); | |
702 | if (more) | |
703 | byte |= 0x80; | |
704 | ||
58356836 | 705 | if (byte_op) |
706 | { | |
3eb9ad16 | 707 | fprintf (asm_out_file, "%#x", byte); |
58356836 | 708 | if (more) |
709 | fputc (',', asm_out_file); | |
710 | } | |
711 | else | |
712 | assemble_integer (GEN_INT (byte), 1, BITS_PER_UNIT, 1); | |
ca98eb0a | 713 | } |
714 | while (more); | |
715 | ||
716 | if (flag_debug_asm) | |
717 | { | |
85aa12f7 | 718 | fprintf (asm_out_file, "\t%s sleb128 " HOST_WIDE_INT_PRINT_DEC, |
719 | ASM_COMMENT_START, value); | |
ca98eb0a | 720 | if (comment) |
721 | { | |
722 | fputs ("; ", asm_out_file); | |
723 | vfprintf (asm_out_file, comment, ap); | |
724 | } | |
725 | } | |
726 | } | |
727 | #endif | |
728 | fputc ('\n', asm_out_file); | |
729 | ||
ee582a61 | 730 | va_end (ap); |
ca98eb0a | 731 | } |
732 | ||
733 | void | |
ee582a61 | 734 | dw2_asm_output_delta_uleb128 (const char *lab1 ATTRIBUTE_UNUSED, |
735 | const char *lab2 ATTRIBUTE_UNUSED, | |
736 | const char *comment, ...) | |
ca98eb0a | 737 | { |
ee582a61 | 738 | va_list ap; |
739 | ||
740 | va_start (ap, comment); | |
ca98eb0a | 741 | |
742 | #ifdef HAVE_AS_LEB128 | |
8de0b9f7 | 743 | fputs ("\t.uleb128 ", asm_out_file); |
ca98eb0a | 744 | assemble_name (asm_out_file, lab1); |
c0e76f1f | 745 | putc ('-', asm_out_file); |
ca98eb0a | 746 | assemble_name (asm_out_file, lab2); |
747 | #else | |
7bd4f6b6 | 748 | gcc_unreachable (); |
ca98eb0a | 749 | #endif |
750 | ||
751 | if (flag_debug_asm && comment) | |
752 | { | |
753 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
754 | vfprintf (asm_out_file, comment, ap); | |
755 | } | |
756 | fputc ('\n', asm_out_file); | |
757 | ||
ee582a61 | 758 | va_end (ap); |
ca98eb0a | 759 | } |
760 | ||
31ac8297 | 761 | #if 0 |
762 | ||
ca98eb0a | 763 | void |
ee582a61 | 764 | dw2_asm_output_delta_sleb128 (const char *lab1 ATTRIBUTE_UNUSED, |
765 | const char *lab2 ATTRIBUTE_UNUSED, | |
766 | const char *comment, ...) | |
ca98eb0a | 767 | { |
ee582a61 | 768 | va_list ap; |
8ec3a57b | 769 | |
ee582a61 | 770 | va_start (ap, comment); |
ca98eb0a | 771 | |
772 | #ifdef HAVE_AS_LEB128 | |
8de0b9f7 | 773 | fputs ("\t.sleb128 ", asm_out_file); |
ca98eb0a | 774 | assemble_name (asm_out_file, lab1); |
c0e76f1f | 775 | putc ('-', asm_out_file); |
ca98eb0a | 776 | assemble_name (asm_out_file, lab2); |
777 | #else | |
7bd4f6b6 | 778 | gcc_unreachable (); |
ca98eb0a | 779 | #endif |
780 | ||
781 | if (flag_debug_asm && comment) | |
782 | { | |
783 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
784 | vfprintf (asm_out_file, comment, ap); | |
785 | } | |
786 | fputc ('\n', asm_out_file); | |
787 | ||
ee582a61 | 788 | va_end (ap); |
ca98eb0a | 789 | } |
31ac8297 | 790 | #endif /* 0 */ |
ad5818ae | 791 | \f |
8ec3a57b | 792 | static int dw2_output_indirect_constant_1 (splay_tree_node, void *); |
ad5818ae | 793 | |
573aba85 | 794 | static GTY((param1_is (char *), param2_is (tree))) splay_tree indirect_pool; |
795 | ||
796 | static GTY(()) int dw2_const_labelno; | |
ad5818ae | 797 | |
293c8430 | 798 | #if defined(HAVE_GAS_HIDDEN) |
799 | # define USE_LINKONCE_INDIRECT (SUPPORTS_ONE_ONLY) | |
403cf343 | 800 | #else |
801 | # define USE_LINKONCE_INDIRECT 0 | |
802 | #endif | |
803 | ||
d9ab39c7 | 804 | /* Comparison function for a splay tree in which the keys are strings. |
805 | K1 and K2 have the dynamic type "const char *". Returns <0, 0, or | |
806 | >0 to indicate whether K1 is less than, equal to, or greater than | |
807 | K2, respectively. */ | |
808 | ||
809 | static int | |
810 | splay_tree_compare_strings (splay_tree_key k1, splay_tree_key k2) | |
811 | { | |
812 | const char *s1 = (const char *)k1; | |
813 | const char *s2 = (const char *)k2; | |
814 | int ret; | |
815 | ||
816 | if (s1 == s2) | |
817 | return 0; | |
818 | ||
819 | ret = strcmp (s1, s2); | |
820 | ||
821 | /* The strings are always those from IDENTIFIER_NODEs, and, | |
822 | therefore, we should never have two copies of the same | |
823 | string. */ | |
824 | gcc_assert (ret); | |
825 | ||
826 | return ret; | |
827 | } | |
828 | ||
9b84bf7d | 829 | /* Put X, a SYMBOL_REF, in memory. Return a SYMBOL_REF to the allocated |
830 | memory. Differs from force_const_mem in that a single pool is used for | |
831 | the entire unit of translation, and the memory is not guaranteed to be | |
6659485c | 832 | "near" the function in any interesting sense. IS_PUBLIC controls whether |
42e07529 | 833 | the symbol can be shared across the entire application (or DSO). */ |
9b84bf7d | 834 | |
fb39ff6e | 835 | rtx |
6659485c | 836 | dw2_force_const_mem (rtx x, bool is_public) |
ad5818ae | 837 | { |
838 | splay_tree_node node; | |
215ba52a | 839 | const char *key; |
1e03a59b | 840 | tree decl_id; |
ad5818ae | 841 | |
842 | if (! indirect_pool) | |
d9ab39c7 | 843 | /* We use strcmp, rather than just comparing pointers, so that the |
844 | sort order will not depend on the host system. */ | |
ba72912a | 845 | indirect_pool = splay_tree_new_ggc (splay_tree_compare_strings, |
846 | ggc_alloc_splay_tree_str_tree_node_splay_tree_s, | |
847 | ggc_alloc_splay_tree_str_tree_node_splay_tree_node_s); | |
ad5818ae | 848 | |
7bd4f6b6 | 849 | gcc_assert (GET_CODE (x) == SYMBOL_REF); |
dc4303d7 | 850 | |
215ba52a | 851 | key = XSTR (x, 0); |
852 | node = splay_tree_lookup (indirect_pool, (splay_tree_key) key); | |
ad5818ae | 853 | if (node) |
1e03a59b | 854 | decl_id = (tree) node->value; |
ad5818ae | 855 | else |
856 | { | |
ad5818ae | 857 | tree id; |
215ba52a | 858 | const char *str = targetm.strip_name_encoding (key); |
ad5818ae | 859 | |
6659485c | 860 | if (is_public && USE_LINKONCE_INDIRECT) |
403cf343 | 861 | { |
364c0c59 | 862 | char *ref_name = XALLOCAVEC (char, strlen (str) + sizeof "DW.ref."); |
403cf343 | 863 | |
dc4303d7 | 864 | sprintf (ref_name, "DW.ref.%s", str); |
1e03a59b | 865 | gcc_assert (!maybe_get_identifier (ref_name)); |
866 | decl_id = get_identifier (ref_name); | |
867 | TREE_PUBLIC (decl_id) = 1; | |
403cf343 | 868 | } |
869 | else | |
870 | { | |
403cf343 | 871 | char label[32]; |
872 | ||
573aba85 | 873 | ASM_GENERATE_INTERNAL_LABEL (label, "LDFCM", dw2_const_labelno); |
874 | ++dw2_const_labelno; | |
1e03a59b | 875 | gcc_assert (!maybe_get_identifier (label)); |
876 | decl_id = get_identifier (label); | |
403cf343 | 877 | } |
ad5818ae | 878 | |
dc4303d7 | 879 | id = maybe_get_identifier (str); |
ad5818ae | 880 | if (id) |
881 | TREE_SYMBOL_REFERENCED (id) = 1; | |
882 | ||
215ba52a | 883 | splay_tree_insert (indirect_pool, (splay_tree_key) key, |
1e03a59b | 884 | (splay_tree_value) decl_id); |
ad5818ae | 885 | } |
886 | ||
1e03a59b | 887 | return gen_rtx_SYMBOL_REF (Pmode, IDENTIFIER_POINTER (decl_id)); |
ad5818ae | 888 | } |
889 | ||
9b84bf7d | 890 | /* A helper function for dw2_output_indirect_constants called through |
891 | splay_tree_foreach. Emit one queued constant to memory. */ | |
892 | ||
ad5818ae | 893 | static int |
8ec3a57b | 894 | dw2_output_indirect_constant_1 (splay_tree_node node, |
895 | void *data ATTRIBUTE_UNUSED) | |
ad5818ae | 896 | { |
403cf343 | 897 | const char *sym; |
ad5818ae | 898 | rtx sym_ref; |
1e03a59b | 899 | tree id, decl; |
ad5818ae | 900 | |
ad5818ae | 901 | sym = (const char *) node->key; |
1e03a59b | 902 | id = (tree) node->value; |
903 | ||
e60a6f7b | 904 | decl = build_decl (UNKNOWN_LOCATION, VAR_DECL, id, ptr_type_node); |
f53d8360 | 905 | SET_DECL_ASSEMBLER_NAME (decl, id); |
1e03a59b | 906 | DECL_ARTIFICIAL (decl) = 1; |
907 | DECL_IGNORED_P (decl) = 1; | |
908 | DECL_INITIAL (decl) = decl; | |
6834c43a | 909 | TREE_READONLY (decl) = 1; |
1e03a59b | 910 | |
911 | if (TREE_PUBLIC (id)) | |
912 | { | |
913 | TREE_PUBLIC (decl) = 1; | |
ecd88073 | 914 | make_decl_one_only (decl, DECL_ASSEMBLER_NAME (decl)); |
b9099475 | 915 | if (USE_LINKONCE_INDIRECT) |
916 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
1e03a59b | 917 | } |
918 | else | |
919 | TREE_STATIC (decl) = 1; | |
920 | ||
ad5818ae | 921 | sym_ref = gen_rtx_SYMBOL_REF (Pmode, sym); |
42e07529 | 922 | assemble_variable (decl, 1, 1, 1); |
d24cc82a | 923 | assemble_integer (sym_ref, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1); |
ad5818ae | 924 | |
925 | return 0; | |
926 | } | |
927 | ||
9b84bf7d | 928 | /* Emit the constants queued through dw2_force_const_mem. */ |
929 | ||
ad5818ae | 930 | void |
8ec3a57b | 931 | dw2_output_indirect_constants (void) |
ad5818ae | 932 | { |
403cf343 | 933 | if (indirect_pool) |
934 | splay_tree_foreach (indirect_pool, dw2_output_indirect_constant_1, NULL); | |
ad5818ae | 935 | } |
936 | ||
42e07529 | 937 | /* Like dw2_asm_output_addr_rtx, but encode the pointer as directed. |
938 | If PUBLIC is set and the encoding is DW_EH_PE_indirect, the indirect | |
939 | reference is shared across the entire application (or DSO). */ | |
9b84bf7d | 940 | |
ad5818ae | 941 | void |
6659485c | 942 | dw2_asm_output_encoded_addr_rtx (int encoding, rtx addr, bool is_public, |
ee582a61 | 943 | const char *comment, ...) |
ad5818ae | 944 | { |
945 | int size; | |
ee582a61 | 946 | va_list ap; |
8ec3a57b | 947 | |
ee582a61 | 948 | va_start (ap, comment); |
9b84bf7d | 949 | |
950 | size = size_of_encoded_value (encoding); | |
ad5818ae | 951 | |
9a4d22ba | 952 | if (encoding == DW_EH_PE_aligned) |
953 | { | |
954 | assemble_align (POINTER_SIZE); | |
104eedee | 955 | assemble_integer (addr, size, POINTER_SIZE, 1); |
451c8e2f | 956 | va_end (ap); |
104eedee | 957 | return; |
9a4d22ba | 958 | } |
959 | ||
1c6585ca | 960 | /* NULL is _always_ represented as a plain zero, as is 1 for Ada's |
961 | "all others". */ | |
962 | if (addr == const0_rtx || addr == const1_rtx) | |
09d688ff | 963 | assemble_integer (addr, size, BITS_PER_UNIT, 1); |
9b84bf7d | 964 | else |
ad5818ae | 965 | { |
9b84bf7d | 966 | restart: |
967 | /* Allow the target first crack at emitting this. Some of the | |
1eefe280 | 968 | special relocations require special directives instead of |
9b84bf7d | 969 | just ".4byte" or whatever. */ |
ad5818ae | 970 | #ifdef ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX |
9b84bf7d | 971 | ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX (asm_out_file, encoding, size, |
972 | addr, done); | |
ad5818ae | 973 | #endif |
974 | ||
9b84bf7d | 975 | /* Indirection is used to get dynamic relocations out of a |
976 | read-only section. */ | |
977 | if (encoding & DW_EH_PE_indirect) | |
978 | { | |
979 | /* It is very tempting to use force_const_mem so that we share data | |
980 | with the normal constant pool. However, we've already emitted | |
981 | the constant pool for this function. Moreover, we'd like to | |
42e07529 | 982 | share these constants across the entire unit of translation and |
983 | even, if possible, across the entire application (or DSO). */ | |
6659485c | 984 | addr = dw2_force_const_mem (addr, is_public); |
9b84bf7d | 985 | encoding &= ~DW_EH_PE_indirect; |
986 | goto restart; | |
987 | } | |
ad5818ae | 988 | |
9b84bf7d | 989 | switch (encoding & 0xF0) |
990 | { | |
991 | case DW_EH_PE_absptr: | |
58356836 | 992 | dw2_assemble_integer (size, addr); |
9b84bf7d | 993 | break; |
ad5818ae | 994 | |
9b84bf7d | 995 | case DW_EH_PE_pcrel: |
7bd4f6b6 | 996 | gcc_assert (GET_CODE (addr) == SYMBOL_REF); |
ad5818ae | 997 | #ifdef ASM_OUTPUT_DWARF_PCREL |
9b84bf7d | 998 | ASM_OUTPUT_DWARF_PCREL (asm_out_file, size, XSTR (addr, 0)); |
ad5818ae | 999 | #else |
58356836 | 1000 | dw2_assemble_integer (size, gen_rtx_MINUS (Pmode, addr, pc_rtx)); |
ad5818ae | 1001 | #endif |
9b84bf7d | 1002 | break; |
ad5818ae | 1003 | |
9b84bf7d | 1004 | default: |
1eefe280 | 1005 | /* Other encodings should have been handled by |
9b84bf7d | 1006 | ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX. */ |
7bd4f6b6 | 1007 | gcc_unreachable (); |
9b84bf7d | 1008 | } |
ad5818ae | 1009 | |
1010 | #ifdef ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX | |
9b84bf7d | 1011 | done:; |
ad5818ae | 1012 | #endif |
9b84bf7d | 1013 | } |
1014 | ||
1015 | if (flag_debug_asm && comment) | |
1016 | { | |
1017 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
1018 | vfprintf (asm_out_file, comment, ap); | |
1019 | } | |
ad5818ae | 1020 | fputc ('\n', asm_out_file); |
9b84bf7d | 1021 | |
ee582a61 | 1022 | va_end (ap); |
ad5818ae | 1023 | } |
573aba85 | 1024 | |
1025 | #include "gt-dwarf2asm.h" |