]>
Commit | Line | Data |
---|---|---|
2e4b9b8c | 1 | /* Dwarf2 assembler output helper routines. |
a80b0574 | 2 | Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009 |
66647d44 | 3 | Free Software Foundation, Inc. |
2e4b9b8c | 4 | |
1322177d | 5 | This file is part of GCC. |
2e4b9b8c | 6 | |
1322177d LB |
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 | |
9dcd6f09 | 9 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 10 | version. |
2e4b9b8c | 11 | |
1322177d LB |
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. | |
2e4b9b8c RH |
16 | |
17 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
2e4b9b8c RH |
20 | |
21 | ||
22 | #include "config.h" | |
23 | #include "system.h" | |
4977bab6 ZW |
24 | #include "coretypes.h" |
25 | #include "tm.h" | |
2e4b9b8c | 26 | #include "flags.h" |
2a1ee410 | 27 | #include "tree.h" |
2e4b9b8c RH |
28 | #include "rtl.h" |
29 | #include "output.h" | |
301d03af | 30 | #include "target.h" |
2e4b9b8c | 31 | #include "dwarf2asm.h" |
a80b0574 | 32 | #include "dwarf2.h" |
2a1ee410 RH |
33 | #include "splay-tree.h" |
34 | #include "ggc.h" | |
2e4b9b8c RH |
35 | #include "tm_p.h" |
36 | ||
37 | ||
38 | /* How to start an assembler comment. */ | |
39 | #ifndef ASM_COMMENT_START | |
40 | #define ASM_COMMENT_START ";#" | |
41 | #endif | |
42 | ||
2e4b9b8c | 43 | \f |
301d03af RS |
44 | /* Output an unaligned integer with the given value and size. Prefer not |
45 | to print a newline, since the caller may want to add a comment. */ | |
46 | ||
47 | void | |
7080f735 | 48 | dw2_assemble_integer (int size, rtx x) |
2e4b9b8c | 49 | { |
301d03af RS |
50 | const char *op = integer_asm_op (size, FALSE); |
51 | ||
52 | if (op) | |
2e4b9b8c | 53 | { |
301d03af | 54 | fputs (op, asm_out_file); |
481683e1 | 55 | if (CONST_INT_P (x)) |
3d57d7ce DK |
56 | fprintf (asm_out_file, HOST_WIDE_INT_PRINT_HEX, |
57 | (unsigned HOST_WIDE_INT) INTVAL (x)); | |
301d03af RS |
58 | else |
59 | output_addr_const (asm_out_file, x); | |
2e4b9b8c | 60 | } |
301d03af RS |
61 | else |
62 | assemble_integer (x, size, BITS_PER_UNIT, 1); | |
2e4b9b8c | 63 | } |
3a538a66 | 64 | |
2e4b9b8c | 65 | |
d4ea4622 RH |
66 | /* Output a value of a given size in target byte order. */ |
67 | ||
68 | void | |
69 | dw2_asm_output_data_raw (int size, unsigned HOST_WIDE_INT value) | |
70 | { | |
71 | unsigned char bytes[8]; | |
72 | int i; | |
73 | ||
74 | for (i = 0; i < 8; ++i) | |
75 | { | |
76 | bytes[i] = value & 0xff; | |
77 | value >>= 8; | |
78 | } | |
79 | ||
80 | if (BYTES_BIG_ENDIAN) | |
81 | { | |
82 | for (i = size - 1; i > 0; --i) | |
83 | fprintf (asm_out_file, "0x%x,", bytes[i]); | |
84 | fprintf (asm_out_file, "0x%x", bytes[0]); | |
85 | } | |
86 | else | |
87 | { | |
88 | for (i = 0; i < size - 1; ++i) | |
89 | fprintf (asm_out_file, "0x%x,", bytes[i]); | |
90 | fprintf (asm_out_file, "0x%x", bytes[i]); | |
91 | } | |
92 | } | |
93 | ||
105f48ae | 94 | /* Output an immediate constant in a given SIZE in bytes. */ |
8e7fa2c8 | 95 | |
2e4b9b8c | 96 | void |
e34d07f2 KG |
97 | dw2_asm_output_data (int size, unsigned HOST_WIDE_INT value, |
98 | const char *comment, ...) | |
2e4b9b8c | 99 | { |
e34d07f2 | 100 | va_list ap; |
d61772b2 | 101 | const char *op = integer_asm_op (size, FALSE); |
7080f735 | 102 | |
e34d07f2 | 103 | va_start (ap, comment); |
2e4b9b8c | 104 | |
da6af203 | 105 | if (size * 8 < HOST_BITS_PER_WIDE_INT) |
c4f2c499 | 106 | value &= ~(~(unsigned HOST_WIDE_INT) 0 << (size * 8)); |
da6af203 | 107 | |
d61772b2 GK |
108 | if (op) |
109 | fprintf (asm_out_file, "%s" HOST_WIDE_INT_PRINT_HEX, op, value); | |
110 | else | |
111 | assemble_integer (GEN_INT (value), size, BITS_PER_UNIT, 1); | |
2e4b9b8c RH |
112 | |
113 | if (flag_debug_asm && comment) | |
114 | { | |
115 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
116 | vfprintf (asm_out_file, comment, ap); | |
117 | } | |
118 | fputc ('\n', asm_out_file); | |
119 | ||
e34d07f2 | 120 | va_end (ap); |
2e4b9b8c RH |
121 | } |
122 | ||
8e7fa2c8 RH |
123 | /* Output the difference between two symbols in a given size. */ |
124 | /* ??? There appear to be assemblers that do not like such | |
125 | subtraction, but do support ASM_SET_OP. It's unfortunately | |
126 | impossible to do here, since the ASM_SET_OP for the difference | |
127 | symbol must appear after both symbols are defined. */ | |
128 | ||
2e4b9b8c | 129 | void |
e34d07f2 KG |
130 | dw2_asm_output_delta (int size, const char *lab1, const char *lab2, |
131 | const char *comment, ...) | |
2e4b9b8c | 132 | { |
e34d07f2 | 133 | va_list ap; |
7080f735 | 134 | |
e34d07f2 | 135 | va_start (ap, comment); |
2e4b9b8c | 136 | |
7606e68f SS |
137 | #ifdef ASM_OUTPUT_DWARF_DELTA |
138 | ASM_OUTPUT_DWARF_DELTA (asm_out_file, size, lab1, lab2); | |
139 | #else | |
301d03af RS |
140 | dw2_assemble_integer (size, |
141 | gen_rtx_MINUS (Pmode, | |
142 | gen_rtx_SYMBOL_REF (Pmode, lab1), | |
143 | gen_rtx_SYMBOL_REF (Pmode, lab2))); | |
7606e68f | 144 | #endif |
2e4b9b8c RH |
145 | if (flag_debug_asm && comment) |
146 | { | |
147 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
148 | vfprintf (asm_out_file, comment, ap); | |
149 | } | |
150 | fputc ('\n', asm_out_file); | |
151 | ||
e34d07f2 | 152 | va_end (ap); |
2e4b9b8c RH |
153 | } |
154 | ||
192d0f89 GK |
155 | /* Output a section-relative reference to a LABEL, which was placed in |
156 | BASE. In general this can only be done for debugging symbols. | |
157 | E.g. on most targets with the GNU linker, this is accomplished with | |
158 | a direct reference and the knowledge that the debugging section | |
159 | will be placed at VMA 0. Some targets have special relocations for | |
160 | this that we must use. */ | |
8e7fa2c8 | 161 | |
2e4b9b8c | 162 | void |
79252435 SB |
163 | dw2_asm_output_offset (int size, const char *label, |
164 | section *base ATTRIBUTE_UNUSED, | |
e34d07f2 | 165 | const char *comment, ...) |
2e4b9b8c | 166 | { |
e34d07f2 | 167 | va_list ap; |
7080f735 | 168 | |
e34d07f2 | 169 | va_start (ap, comment); |
2e4b9b8c | 170 | |
8e7fa2c8 | 171 | #ifdef ASM_OUTPUT_DWARF_OFFSET |
192d0f89 | 172 | ASM_OUTPUT_DWARF_OFFSET (asm_out_file, size, label, base); |
8e7fa2c8 | 173 | #else |
301d03af | 174 | dw2_assemble_integer (size, gen_rtx_SYMBOL_REF (Pmode, label)); |
2e4b9b8c RH |
175 | #endif |
176 | ||
177 | if (flag_debug_asm && comment) | |
178 | { | |
179 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
180 | vfprintf (asm_out_file, comment, ap); | |
181 | } | |
182 | fputc ('\n', asm_out_file); | |
183 | ||
e34d07f2 | 184 | va_end (ap); |
2e4b9b8c RH |
185 | } |
186 | ||
c8f4fe99 BE |
187 | #if 0 |
188 | ||
8e7fa2c8 RH |
189 | /* Output a self-relative reference to a label, possibly in a |
190 | different section or object file. */ | |
191 | ||
2e4b9b8c | 192 | void |
e34d07f2 KG |
193 | dw2_asm_output_pcrel (int size ATTRIBUTE_UNUSED, |
194 | const char *label ATTRIBUTE_UNUSED, | |
195 | const char *comment, ...) | |
2e4b9b8c | 196 | { |
e34d07f2 | 197 | va_list ap; |
7080f735 | 198 | |
e34d07f2 | 199 | va_start (ap, comment); |
2e4b9b8c | 200 | |
8e7fa2c8 RH |
201 | #ifdef ASM_OUTPUT_DWARF_PCREL |
202 | ASM_OUTPUT_DWARF_PCREL (asm_out_file, size, label); | |
203 | #else | |
301d03af RS |
204 | dw2_assemble_integer (size, |
205 | gen_rtx_MINUS (Pmode, | |
206 | gen_rtx_SYMBOL_REF (Pmode, label), | |
207 | pc_rtx)); | |
8e7fa2c8 RH |
208 | #endif |
209 | ||
210 | if (flag_debug_asm && comment) | |
211 | { | |
212 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
213 | vfprintf (asm_out_file, comment, ap); | |
214 | } | |
215 | fputc ('\n', asm_out_file); | |
216 | ||
e34d07f2 | 217 | va_end (ap); |
8e7fa2c8 | 218 | } |
c8f4fe99 | 219 | #endif /* 0 */ |
8e7fa2c8 RH |
220 | |
221 | /* Output an absolute reference to a label. */ | |
222 | ||
223 | void | |
e34d07f2 KG |
224 | dw2_asm_output_addr (int size, const char *label, |
225 | const char *comment, ...) | |
8e7fa2c8 | 226 | { |
e34d07f2 | 227 | va_list ap; |
7080f735 | 228 | |
e34d07f2 | 229 | va_start (ap, comment); |
8e7fa2c8 | 230 | |
301d03af | 231 | dw2_assemble_integer (size, gen_rtx_SYMBOL_REF (Pmode, label)); |
2e4b9b8c RH |
232 | |
233 | if (flag_debug_asm && comment) | |
234 | { | |
235 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
236 | vfprintf (asm_out_file, comment, ap); | |
237 | } | |
238 | fputc ('\n', asm_out_file); | |
239 | ||
e34d07f2 | 240 | va_end (ap); |
2e4b9b8c RH |
241 | } |
242 | ||
8e7fa2c8 RH |
243 | /* Similar, but use an RTX expression instead of a text label. */ |
244 | ||
2e4b9b8c | 245 | void |
e34d07f2 KG |
246 | dw2_asm_output_addr_rtx (int size, rtx addr, |
247 | const char *comment, ...) | |
2e4b9b8c | 248 | { |
e34d07f2 | 249 | va_list ap; |
7080f735 | 250 | |
e34d07f2 | 251 | va_start (ap, comment); |
2e4b9b8c | 252 | |
301d03af | 253 | dw2_assemble_integer (size, addr); |
2e4b9b8c RH |
254 | |
255 | if (flag_debug_asm && comment) | |
256 | { | |
257 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
258 | vfprintf (asm_out_file, comment, ap); | |
259 | } | |
260 | fputc ('\n', asm_out_file); | |
261 | ||
e34d07f2 | 262 | va_end (ap); |
2e4b9b8c RH |
263 | } |
264 | ||
1e290ba1 JB |
265 | /* Output the first ORIG_LEN characters of STR as a string. |
266 | If ORIG_LEN is equal to -1, ignore this parameter and output | |
267 | the entire STR instead. | |
268 | If COMMENT is not NULL and comments in the debug information | |
269 | have been requested by the user, append the given COMMENT | |
270 | to the generated output. */ | |
b8698a0f | 271 | |
2e4b9b8c | 272 | void |
e34d07f2 KG |
273 | dw2_asm_output_nstring (const char *str, size_t orig_len, |
274 | const char *comment, ...) | |
2e4b9b8c | 275 | { |
7a75edb7 | 276 | size_t i, len; |
e34d07f2 | 277 | va_list ap; |
2e4b9b8c | 278 | |
e34d07f2 | 279 | va_start (ap, comment); |
2e4b9b8c | 280 | |
7a75edb7 | 281 | len = orig_len; |
2e4b9b8c RH |
282 | |
283 | if (len == (size_t) -1) | |
284 | len = strlen (str); | |
285 | ||
286 | if (flag_debug_asm && comment) | |
287 | { | |
288 | fputs ("\t.ascii \"", asm_out_file); | |
289 | for (i = 0; i < len; i++) | |
290 | { | |
291 | int c = str[i]; | |
292 | if (c == '\"' || c == '\\') | |
293 | fputc ('\\', asm_out_file); | |
294 | if (ISPRINT(c)) | |
295 | fputc (c, asm_out_file); | |
296 | else | |
297 | fprintf (asm_out_file, "\\%o", c); | |
298 | } | |
299 | fprintf (asm_out_file, "\\0\"\t%s ", ASM_COMMENT_START); | |
300 | vfprintf (asm_out_file, comment, ap); | |
301 | fputc ('\n', asm_out_file); | |
302 | } | |
303 | else | |
304 | { | |
305 | /* If an explicit length was given, we can't assume there | |
306 | is a null termination in the string buffer. */ | |
307 | if (orig_len == (size_t) -1) | |
308 | len += 1; | |
309 | ASM_OUTPUT_ASCII (asm_out_file, str, len); | |
310 | if (orig_len != (size_t) -1) | |
301d03af | 311 | assemble_integer (const0_rtx, 1, BITS_PER_UNIT, 1); |
2e4b9b8c RH |
312 | } |
313 | ||
e34d07f2 | 314 | va_end (ap); |
2e4b9b8c RH |
315 | } |
316 | \f | |
317 | ||
318 | /* Return the size of an unsigned LEB128 quantity. */ | |
319 | ||
320 | int | |
7080f735 | 321 | size_of_uleb128 (unsigned HOST_WIDE_INT value) |
2e4b9b8c | 322 | { |
4977bab6 | 323 | int size = 0; |
2e4b9b8c RH |
324 | |
325 | do | |
326 | { | |
2e4b9b8c RH |
327 | value >>= 7; |
328 | size += 1; | |
329 | } | |
330 | while (value != 0); | |
331 | ||
332 | return size; | |
333 | } | |
334 | ||
335 | /* Return the size of a signed LEB128 quantity. */ | |
336 | ||
337 | int | |
7080f735 | 338 | size_of_sleb128 (HOST_WIDE_INT value) |
2e4b9b8c RH |
339 | { |
340 | int size = 0, byte; | |
341 | ||
342 | do | |
343 | { | |
344 | byte = (value & 0x7f); | |
345 | value >>= 7; | |
346 | size += 1; | |
347 | } | |
348 | while (!((value == 0 && (byte & 0x40) == 0) | |
349 | || (value == -1 && (byte & 0x40) != 0))); | |
350 | ||
351 | return size; | |
352 | } | |
353 | ||
b627d6fe | 354 | /* Given an encoding, return the number of bytes the format occupies. |
3a538a66 | 355 | This is only defined for fixed-size encodings, and so does not |
b627d6fe RH |
356 | include leb128. */ |
357 | ||
358 | int | |
7080f735 | 359 | size_of_encoded_value (int encoding) |
b627d6fe RH |
360 | { |
361 | if (encoding == DW_EH_PE_omit) | |
362 | return 0; | |
363 | ||
364 | switch (encoding & 0x07) | |
365 | { | |
366 | case DW_EH_PE_absptr: | |
367 | return POINTER_SIZE / BITS_PER_UNIT; | |
368 | case DW_EH_PE_udata2: | |
369 | return 2; | |
370 | case DW_EH_PE_udata4: | |
371 | return 4; | |
372 | case DW_EH_PE_udata8: | |
373 | return 8; | |
ced3f397 NS |
374 | default: |
375 | gcc_unreachable (); | |
b627d6fe | 376 | } |
b627d6fe RH |
377 | } |
378 | ||
e1f9550a RH |
379 | /* Yield a name for a given pointer encoding. */ |
380 | ||
381 | const char * | |
7080f735 | 382 | eh_data_format_name (int format) |
e1f9550a RH |
383 | { |
384 | #if HAVE_DESIGNATED_INITIALIZERS | |
385 | #define S(p, v) [p] = v, | |
386 | #else | |
387 | #define S(p, v) case p: return v; | |
388 | #endif | |
389 | ||
390 | #if HAVE_DESIGNATED_INITIALIZERS | |
391 | __extension__ static const char * const format_names[256] = { | |
392 | #else | |
393 | switch (format) { | |
394 | #endif | |
395 | ||
396 | S(DW_EH_PE_absptr, "absolute") | |
397 | S(DW_EH_PE_omit, "omit") | |
099c8b17 | 398 | S(DW_EH_PE_aligned, "aligned absolute") |
e1f9550a RH |
399 | |
400 | S(DW_EH_PE_uleb128, "uleb128") | |
401 | S(DW_EH_PE_udata2, "udata2") | |
402 | S(DW_EH_PE_udata4, "udata4") | |
403 | S(DW_EH_PE_udata8, "udata8") | |
404 | S(DW_EH_PE_sleb128, "sleb128") | |
405 | S(DW_EH_PE_sdata2, "sdata2") | |
406 | S(DW_EH_PE_sdata4, "sdata4") | |
407 | S(DW_EH_PE_sdata8, "sdata8") | |
408 | ||
f90811a2 | 409 | S(DW_EH_PE_absptr | DW_EH_PE_pcrel, "pcrel") |
e1f9550a RH |
410 | S(DW_EH_PE_uleb128 | DW_EH_PE_pcrel, "pcrel uleb128") |
411 | S(DW_EH_PE_udata2 | DW_EH_PE_pcrel, "pcrel udata2") | |
412 | S(DW_EH_PE_udata4 | DW_EH_PE_pcrel, "pcrel udata4") | |
413 | S(DW_EH_PE_udata8 | DW_EH_PE_pcrel, "pcrel udata8") | |
414 | S(DW_EH_PE_sleb128 | DW_EH_PE_pcrel, "pcrel sleb128") | |
415 | S(DW_EH_PE_sdata2 | DW_EH_PE_pcrel, "pcrel sdata2") | |
416 | S(DW_EH_PE_sdata4 | DW_EH_PE_pcrel, "pcrel sdata4") | |
417 | S(DW_EH_PE_sdata8 | DW_EH_PE_pcrel, "pcrel sdata8") | |
418 | ||
f90811a2 | 419 | S(DW_EH_PE_absptr | DW_EH_PE_textrel, "textrel") |
e1f9550a RH |
420 | S(DW_EH_PE_uleb128 | DW_EH_PE_textrel, "textrel uleb128") |
421 | S(DW_EH_PE_udata2 | DW_EH_PE_textrel, "textrel udata2") | |
422 | S(DW_EH_PE_udata4 | DW_EH_PE_textrel, "textrel udata4") | |
423 | S(DW_EH_PE_udata8 | DW_EH_PE_textrel, "textrel udata8") | |
424 | S(DW_EH_PE_sleb128 | DW_EH_PE_textrel, "textrel sleb128") | |
425 | S(DW_EH_PE_sdata2 | DW_EH_PE_textrel, "textrel sdata2") | |
426 | S(DW_EH_PE_sdata4 | DW_EH_PE_textrel, "textrel sdata4") | |
427 | S(DW_EH_PE_sdata8 | DW_EH_PE_textrel, "textrel sdata8") | |
428 | ||
f90811a2 | 429 | S(DW_EH_PE_absptr | DW_EH_PE_datarel, "datarel") |
e1f9550a RH |
430 | S(DW_EH_PE_uleb128 | DW_EH_PE_datarel, "datarel uleb128") |
431 | S(DW_EH_PE_udata2 | DW_EH_PE_datarel, "datarel udata2") | |
432 | S(DW_EH_PE_udata4 | DW_EH_PE_datarel, "datarel udata4") | |
433 | S(DW_EH_PE_udata8 | DW_EH_PE_datarel, "datarel udata8") | |
434 | S(DW_EH_PE_sleb128 | DW_EH_PE_datarel, "datarel sleb128") | |
435 | S(DW_EH_PE_sdata2 | DW_EH_PE_datarel, "datarel sdata2") | |
436 | S(DW_EH_PE_sdata4 | DW_EH_PE_datarel, "datarel sdata4") | |
437 | S(DW_EH_PE_sdata8 | DW_EH_PE_datarel, "datarel sdata8") | |
438 | ||
f90811a2 | 439 | S(DW_EH_PE_absptr | DW_EH_PE_funcrel, "funcrel") |
e1f9550a RH |
440 | S(DW_EH_PE_uleb128 | DW_EH_PE_funcrel, "funcrel uleb128") |
441 | S(DW_EH_PE_udata2 | DW_EH_PE_funcrel, "funcrel udata2") | |
442 | S(DW_EH_PE_udata4 | DW_EH_PE_funcrel, "funcrel udata4") | |
443 | S(DW_EH_PE_udata8 | DW_EH_PE_funcrel, "funcrel udata8") | |
444 | S(DW_EH_PE_sleb128 | DW_EH_PE_funcrel, "funcrel sleb128") | |
445 | S(DW_EH_PE_sdata2 | DW_EH_PE_funcrel, "funcrel sdata2") | |
446 | S(DW_EH_PE_sdata4 | DW_EH_PE_funcrel, "funcrel sdata4") | |
447 | S(DW_EH_PE_sdata8 | DW_EH_PE_funcrel, "funcrel sdata8") | |
448 | ||
49576e25 RS |
449 | S(DW_EH_PE_indirect | DW_EH_PE_absptr, "indirect absolute") |
450 | ||
f90811a2 RH |
451 | S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_pcrel, |
452 | "indirect pcrel") | |
e1f9550a RH |
453 | S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_pcrel, |
454 | "indirect pcrel uleb128") | |
455 | S(DW_EH_PE_indirect | DW_EH_PE_udata2 | DW_EH_PE_pcrel, | |
456 | "indirect pcrel udata2") | |
457 | S(DW_EH_PE_indirect | DW_EH_PE_udata4 | DW_EH_PE_pcrel, | |
458 | "indirect pcrel udata4") | |
459 | S(DW_EH_PE_indirect | DW_EH_PE_udata8 | DW_EH_PE_pcrel, | |
460 | "indirect pcrel udata8") | |
461 | S(DW_EH_PE_indirect | DW_EH_PE_sleb128 | DW_EH_PE_pcrel, | |
462 | "indirect pcrel sleb128") | |
463 | S(DW_EH_PE_indirect | DW_EH_PE_sdata2 | DW_EH_PE_pcrel, | |
464 | "indirect pcrel sdata2") | |
465 | S(DW_EH_PE_indirect | DW_EH_PE_sdata4 | DW_EH_PE_pcrel, | |
466 | "indirect pcrel sdata4") | |
467 | S(DW_EH_PE_indirect | DW_EH_PE_sdata8 | DW_EH_PE_pcrel, | |
468 | "indirect pcrel sdata8") | |
469 | ||
f90811a2 RH |
470 | S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_textrel, |
471 | "indirect textrel") | |
e1f9550a RH |
472 | S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_textrel, |
473 | "indirect textrel uleb128") | |
474 | S(DW_EH_PE_indirect | DW_EH_PE_udata2 | DW_EH_PE_textrel, | |
475 | "indirect textrel udata2") | |
476 | S(DW_EH_PE_indirect | DW_EH_PE_udata4 | DW_EH_PE_textrel, | |
477 | "indirect textrel udata4") | |
478 | S(DW_EH_PE_indirect | DW_EH_PE_udata8 | DW_EH_PE_textrel, | |
479 | "indirect textrel udata8") | |
480 | S(DW_EH_PE_indirect | DW_EH_PE_sleb128 | DW_EH_PE_textrel, | |
481 | "indirect textrel sleb128") | |
482 | S(DW_EH_PE_indirect | DW_EH_PE_sdata2 | DW_EH_PE_textrel, | |
483 | "indirect textrel sdata2") | |
484 | S(DW_EH_PE_indirect | DW_EH_PE_sdata4 | DW_EH_PE_textrel, | |
485 | "indirect textrel sdata4") | |
486 | S(DW_EH_PE_indirect | DW_EH_PE_sdata8 | DW_EH_PE_textrel, | |
487 | "indirect textrel sdata8") | |
488 | ||
f90811a2 RH |
489 | S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_datarel, |
490 | "indirect datarel") | |
e1f9550a RH |
491 | S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_datarel, |
492 | "indirect datarel uleb128") | |
493 | S(DW_EH_PE_indirect | DW_EH_PE_udata2 | DW_EH_PE_datarel, | |
494 | "indirect datarel udata2") | |
495 | S(DW_EH_PE_indirect | DW_EH_PE_udata4 | DW_EH_PE_datarel, | |
496 | "indirect datarel udata4") | |
497 | S(DW_EH_PE_indirect | DW_EH_PE_udata8 | DW_EH_PE_datarel, | |
498 | "indirect datarel udata8") | |
499 | S(DW_EH_PE_indirect | DW_EH_PE_sleb128 | DW_EH_PE_datarel, | |
500 | "indirect datarel sleb128") | |
501 | S(DW_EH_PE_indirect | DW_EH_PE_sdata2 | DW_EH_PE_datarel, | |
502 | "indirect datarel sdata2") | |
503 | S(DW_EH_PE_indirect | DW_EH_PE_sdata4 | DW_EH_PE_datarel, | |
504 | "indirect datarel sdata4") | |
505 | S(DW_EH_PE_indirect | DW_EH_PE_sdata8 | DW_EH_PE_datarel, | |
506 | "indirect datarel sdata8") | |
507 | ||
f90811a2 RH |
508 | S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_funcrel, |
509 | "indirect funcrel") | |
e1f9550a RH |
510 | S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_funcrel, |
511 | "indirect funcrel uleb128") | |
512 | S(DW_EH_PE_indirect | DW_EH_PE_udata2 | DW_EH_PE_funcrel, | |
513 | "indirect funcrel udata2") | |
514 | S(DW_EH_PE_indirect | DW_EH_PE_udata4 | DW_EH_PE_funcrel, | |
515 | "indirect funcrel udata4") | |
516 | S(DW_EH_PE_indirect | DW_EH_PE_udata8 | DW_EH_PE_funcrel, | |
517 | "indirect funcrel udata8") | |
518 | S(DW_EH_PE_indirect | DW_EH_PE_sleb128 | DW_EH_PE_funcrel, | |
519 | "indirect funcrel sleb128") | |
520 | S(DW_EH_PE_indirect | DW_EH_PE_sdata2 | DW_EH_PE_funcrel, | |
521 | "indirect funcrel sdata2") | |
522 | S(DW_EH_PE_indirect | DW_EH_PE_sdata4 | DW_EH_PE_funcrel, | |
523 | "indirect funcrel sdata4") | |
524 | S(DW_EH_PE_indirect | DW_EH_PE_sdata8 | DW_EH_PE_funcrel, | |
525 | "indirect funcrel sdata8") | |
526 | ||
527 | #if HAVE_DESIGNATED_INITIALIZERS | |
528 | }; | |
529 | ||
ced3f397 | 530 | gcc_assert (format >= 0 && format < 0x100 && format_names[format]); |
b8698a0f | 531 | |
e1f9550a RH |
532 | return format_names[format]; |
533 | #else | |
534 | } | |
ced3f397 | 535 | gcc_unreachable (); |
e1f9550a RH |
536 | #endif |
537 | } | |
538 | ||
d4ea4622 RH |
539 | /* Output an unsigned LEB128 quantity, but only the byte values. */ |
540 | ||
541 | void | |
542 | dw2_asm_output_data_uleb128_raw (unsigned HOST_WIDE_INT value) | |
543 | { | |
544 | while (1) | |
545 | { | |
546 | int byte = (value & 0x7f); | |
547 | value >>= 7; | |
548 | if (value != 0) | |
549 | /* More bytes to follow. */ | |
550 | byte |= 0x80; | |
551 | ||
552 | fprintf (asm_out_file, "0x%x", byte); | |
553 | if (value == 0) | |
554 | break; | |
555 | fputc (',', asm_out_file); | |
556 | } | |
557 | } | |
558 | ||
2e4b9b8c RH |
559 | /* Output an unsigned LEB128 quantity. */ |
560 | ||
561 | void | |
e34d07f2 KG |
562 | dw2_asm_output_data_uleb128 (unsigned HOST_WIDE_INT value, |
563 | const char *comment, ...) | |
2e4b9b8c | 564 | { |
e34d07f2 | 565 | va_list ap; |
7080f735 | 566 | |
e34d07f2 | 567 | va_start (ap, comment); |
2e4b9b8c RH |
568 | |
569 | #ifdef HAVE_AS_LEB128 | |
90ff44cf | 570 | fprintf (asm_out_file, "\t.uleb128 " HOST_WIDE_INT_PRINT_HEX , value); |
2e4b9b8c RH |
571 | |
572 | if (flag_debug_asm && comment) | |
573 | { | |
574 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
575 | vfprintf (asm_out_file, comment, ap); | |
576 | } | |
577 | #else | |
578 | { | |
579 | unsigned HOST_WIDE_INT work = value; | |
301d03af | 580 | const char *byte_op = targetm.asm_out.byte_op; |
2e4b9b8c | 581 | |
301d03af RS |
582 | if (byte_op) |
583 | fputs (byte_op, asm_out_file); | |
2e4b9b8c RH |
584 | do |
585 | { | |
586 | int byte = (work & 0x7f); | |
587 | work >>= 7; | |
588 | if (work != 0) | |
589 | /* More bytes to follow. */ | |
590 | byte |= 0x80; | |
591 | ||
301d03af RS |
592 | if (byte_op) |
593 | { | |
594 | fprintf (asm_out_file, "0x%x", byte); | |
595 | if (work != 0) | |
596 | fputc (',', asm_out_file); | |
597 | } | |
598 | else | |
599 | assemble_integer (GEN_INT (byte), 1, BITS_PER_UNIT, 1); | |
2e4b9b8c RH |
600 | } |
601 | while (work != 0); | |
602 | ||
603 | if (flag_debug_asm) | |
604 | { | |
90ff44cf KG |
605 | fprintf (asm_out_file, "\t%s uleb128 " HOST_WIDE_INT_PRINT_HEX, |
606 | ASM_COMMENT_START, value); | |
2e4b9b8c RH |
607 | if (comment) |
608 | { | |
609 | fputs ("; ", asm_out_file); | |
610 | vfprintf (asm_out_file, comment, ap); | |
611 | } | |
612 | } | |
613 | } | |
614 | #endif | |
615 | fputc ('\n', asm_out_file); | |
616 | ||
e34d07f2 | 617 | va_end (ap); |
2e4b9b8c RH |
618 | } |
619 | ||
d4ea4622 RH |
620 | /* Output an signed LEB128 quantity, but only the byte values. */ |
621 | ||
622 | void | |
623 | dw2_asm_output_data_sleb128_raw (HOST_WIDE_INT value) | |
624 | { | |
625 | int byte, more; | |
626 | ||
627 | while (1) | |
628 | { | |
629 | byte = (value & 0x7f); | |
630 | value >>= 7; | |
631 | more = !((value == 0 && (byte & 0x40) == 0) | |
632 | || (value == -1 && (byte & 0x40) != 0)); | |
633 | if (more) | |
634 | byte |= 0x80; | |
635 | ||
636 | fprintf (asm_out_file, "0x%x", byte); | |
637 | if (!more) | |
638 | break; | |
639 | fputc (',', asm_out_file); | |
640 | } | |
641 | } | |
642 | ||
09da1532 | 643 | /* Output a signed LEB128 quantity. */ |
2e4b9b8c RH |
644 | |
645 | void | |
e34d07f2 KG |
646 | dw2_asm_output_data_sleb128 (HOST_WIDE_INT value, |
647 | const char *comment, ...) | |
2e4b9b8c | 648 | { |
e34d07f2 | 649 | va_list ap; |
7080f735 | 650 | |
e34d07f2 | 651 | va_start (ap, comment); |
2e4b9b8c RH |
652 | |
653 | #ifdef HAVE_AS_LEB128 | |
90ff44cf | 654 | fprintf (asm_out_file, "\t.sleb128 " HOST_WIDE_INT_PRINT_DEC, value); |
2e4b9b8c RH |
655 | |
656 | if (flag_debug_asm && comment) | |
657 | { | |
658 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
659 | vfprintf (asm_out_file, comment, ap); | |
660 | } | |
661 | #else | |
662 | { | |
663 | HOST_WIDE_INT work = value; | |
664 | int more, byte; | |
301d03af | 665 | const char *byte_op = targetm.asm_out.byte_op; |
2e4b9b8c | 666 | |
301d03af RS |
667 | if (byte_op) |
668 | fputs (byte_op, asm_out_file); | |
2e4b9b8c RH |
669 | do |
670 | { | |
671 | byte = (work & 0x7f); | |
672 | /* arithmetic shift */ | |
673 | work >>= 7; | |
674 | more = !((work == 0 && (byte & 0x40) == 0) | |
675 | || (work == -1 && (byte & 0x40) != 0)); | |
676 | if (more) | |
677 | byte |= 0x80; | |
678 | ||
301d03af RS |
679 | if (byte_op) |
680 | { | |
681 | fprintf (asm_out_file, "0x%x", byte); | |
682 | if (more) | |
683 | fputc (',', asm_out_file); | |
684 | } | |
685 | else | |
686 | assemble_integer (GEN_INT (byte), 1, BITS_PER_UNIT, 1); | |
2e4b9b8c RH |
687 | } |
688 | while (more); | |
689 | ||
690 | if (flag_debug_asm) | |
691 | { | |
90ff44cf KG |
692 | fprintf (asm_out_file, "\t%s sleb128 " HOST_WIDE_INT_PRINT_DEC, |
693 | ASM_COMMENT_START, value); | |
2e4b9b8c RH |
694 | if (comment) |
695 | { | |
696 | fputs ("; ", asm_out_file); | |
697 | vfprintf (asm_out_file, comment, ap); | |
698 | } | |
699 | } | |
700 | } | |
701 | #endif | |
702 | fputc ('\n', asm_out_file); | |
703 | ||
e34d07f2 | 704 | va_end (ap); |
2e4b9b8c RH |
705 | } |
706 | ||
707 | void | |
e34d07f2 KG |
708 | dw2_asm_output_delta_uleb128 (const char *lab1 ATTRIBUTE_UNUSED, |
709 | const char *lab2 ATTRIBUTE_UNUSED, | |
710 | const char *comment, ...) | |
2e4b9b8c | 711 | { |
e34d07f2 KG |
712 | va_list ap; |
713 | ||
714 | va_start (ap, comment); | |
2e4b9b8c RH |
715 | |
716 | #ifdef HAVE_AS_LEB128 | |
da6af203 | 717 | fputs ("\t.uleb128 ", asm_out_file); |
2e4b9b8c RH |
718 | assemble_name (asm_out_file, lab1); |
719 | fputc ('-', asm_out_file); | |
720 | assemble_name (asm_out_file, lab2); | |
721 | #else | |
ced3f397 | 722 | gcc_unreachable (); |
2e4b9b8c RH |
723 | #endif |
724 | ||
725 | if (flag_debug_asm && comment) | |
726 | { | |
727 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
728 | vfprintf (asm_out_file, comment, ap); | |
729 | } | |
730 | fputc ('\n', asm_out_file); | |
731 | ||
e34d07f2 | 732 | va_end (ap); |
2e4b9b8c RH |
733 | } |
734 | ||
c8f4fe99 BE |
735 | #if 0 |
736 | ||
2e4b9b8c | 737 | void |
e34d07f2 KG |
738 | dw2_asm_output_delta_sleb128 (const char *lab1 ATTRIBUTE_UNUSED, |
739 | const char *lab2 ATTRIBUTE_UNUSED, | |
740 | const char *comment, ...) | |
2e4b9b8c | 741 | { |
e34d07f2 | 742 | va_list ap; |
7080f735 | 743 | |
e34d07f2 | 744 | va_start (ap, comment); |
2e4b9b8c RH |
745 | |
746 | #ifdef HAVE_AS_LEB128 | |
da6af203 | 747 | fputs ("\t.sleb128 ", asm_out_file); |
2e4b9b8c RH |
748 | assemble_name (asm_out_file, lab1); |
749 | fputc ('-', asm_out_file); | |
750 | assemble_name (asm_out_file, lab2); | |
751 | #else | |
ced3f397 | 752 | gcc_unreachable (); |
2e4b9b8c RH |
753 | #endif |
754 | ||
755 | if (flag_debug_asm && comment) | |
756 | { | |
757 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
758 | vfprintf (asm_out_file, comment, ap); | |
759 | } | |
760 | fputc ('\n', asm_out_file); | |
761 | ||
e34d07f2 | 762 | va_end (ap); |
2e4b9b8c | 763 | } |
c8f4fe99 | 764 | #endif /* 0 */ |
2a1ee410 | 765 | \f |
7080f735 | 766 | static int dw2_output_indirect_constant_1 (splay_tree_node, void *); |
2a1ee410 | 767 | |
17211ab5 GK |
768 | static GTY((param1_is (char *), param2_is (tree))) splay_tree indirect_pool; |
769 | ||
770 | static GTY(()) int dw2_const_labelno; | |
2a1ee410 | 771 | |
d6d26764 JJ |
772 | #if defined(HAVE_GAS_HIDDEN) && defined(SUPPORTS_ONE_ONLY) |
773 | # define USE_LINKONCE_INDIRECT 1 | |
774 | #else | |
775 | # define USE_LINKONCE_INDIRECT 0 | |
776 | #endif | |
777 | ||
dc1327cd AO |
778 | /* Comparison function for a splay tree in which the keys are strings. |
779 | K1 and K2 have the dynamic type "const char *". Returns <0, 0, or | |
780 | >0 to indicate whether K1 is less than, equal to, or greater than | |
781 | K2, respectively. */ | |
782 | ||
783 | static int | |
784 | splay_tree_compare_strings (splay_tree_key k1, splay_tree_key k2) | |
785 | { | |
786 | const char *s1 = (const char *)k1; | |
787 | const char *s2 = (const char *)k2; | |
788 | int ret; | |
789 | ||
790 | if (s1 == s2) | |
791 | return 0; | |
792 | ||
793 | ret = strcmp (s1, s2); | |
794 | ||
795 | /* The strings are always those from IDENTIFIER_NODEs, and, | |
796 | therefore, we should never have two copies of the same | |
797 | string. */ | |
798 | gcc_assert (ret); | |
799 | ||
800 | return ret; | |
801 | } | |
802 | ||
e1f9550a RH |
803 | /* Put X, a SYMBOL_REF, in memory. Return a SYMBOL_REF to the allocated |
804 | memory. Differs from force_const_mem in that a single pool is used for | |
805 | the entire unit of translation, and the memory is not guaranteed to be | |
d858f359 | 806 | "near" the function in any interesting sense. IS_PUBLIC controls whether |
b03e9863 | 807 | the symbol can be shared across the entire application (or DSO). */ |
e1f9550a | 808 | |
d4ea4622 | 809 | rtx |
d858f359 | 810 | dw2_force_const_mem (rtx x, bool is_public) |
2a1ee410 RH |
811 | { |
812 | splay_tree_node node; | |
a2649528 | 813 | const char *key; |
78bd9046 | 814 | tree decl_id; |
2a1ee410 RH |
815 | |
816 | if (! indirect_pool) | |
dc1327cd AO |
817 | /* We use strcmp, rather than just comparing pointers, so that the |
818 | sort order will not depend on the host system. */ | |
819 | indirect_pool = splay_tree_new_ggc (splay_tree_compare_strings); | |
2a1ee410 | 820 | |
ced3f397 | 821 | gcc_assert (GET_CODE (x) == SYMBOL_REF); |
1ee9fb20 | 822 | |
a2649528 JDA |
823 | key = XSTR (x, 0); |
824 | node = splay_tree_lookup (indirect_pool, (splay_tree_key) key); | |
2a1ee410 | 825 | if (node) |
78bd9046 | 826 | decl_id = (tree) node->value; |
2a1ee410 RH |
827 | else |
828 | { | |
2a1ee410 | 829 | tree id; |
a2649528 | 830 | const char *str = targetm.strip_name_encoding (key); |
2a1ee410 | 831 | |
d858f359 | 832 | if (is_public && USE_LINKONCE_INDIRECT) |
d6d26764 | 833 | { |
f883e0a7 | 834 | char *ref_name = XALLOCAVEC (char, strlen (str) + sizeof "DW.ref."); |
d6d26764 | 835 | |
1ee9fb20 | 836 | sprintf (ref_name, "DW.ref.%s", str); |
78bd9046 AO |
837 | gcc_assert (!maybe_get_identifier (ref_name)); |
838 | decl_id = get_identifier (ref_name); | |
839 | TREE_PUBLIC (decl_id) = 1; | |
d6d26764 JJ |
840 | } |
841 | else | |
842 | { | |
d6d26764 JJ |
843 | char label[32]; |
844 | ||
17211ab5 GK |
845 | ASM_GENERATE_INTERNAL_LABEL (label, "LDFCM", dw2_const_labelno); |
846 | ++dw2_const_labelno; | |
78bd9046 AO |
847 | gcc_assert (!maybe_get_identifier (label)); |
848 | decl_id = get_identifier (label); | |
d6d26764 | 849 | } |
2a1ee410 | 850 | |
1ee9fb20 | 851 | id = maybe_get_identifier (str); |
2a1ee410 RH |
852 | if (id) |
853 | TREE_SYMBOL_REFERENCED (id) = 1; | |
854 | ||
a2649528 | 855 | splay_tree_insert (indirect_pool, (splay_tree_key) key, |
78bd9046 | 856 | (splay_tree_value) decl_id); |
2a1ee410 RH |
857 | } |
858 | ||
78bd9046 | 859 | return gen_rtx_SYMBOL_REF (Pmode, IDENTIFIER_POINTER (decl_id)); |
2a1ee410 RH |
860 | } |
861 | ||
e1f9550a RH |
862 | /* A helper function for dw2_output_indirect_constants called through |
863 | splay_tree_foreach. Emit one queued constant to memory. */ | |
864 | ||
2a1ee410 | 865 | static int |
7080f735 AJ |
866 | dw2_output_indirect_constant_1 (splay_tree_node node, |
867 | void *data ATTRIBUTE_UNUSED) | |
2a1ee410 | 868 | { |
d6d26764 | 869 | const char *sym; |
2a1ee410 | 870 | rtx sym_ref; |
78bd9046 | 871 | tree id, decl; |
2a1ee410 | 872 | |
2a1ee410 | 873 | sym = (const char *) node->key; |
78bd9046 AO |
874 | id = (tree) node->value; |
875 | ||
c2255bc4 | 876 | decl = build_decl (UNKNOWN_LOCATION, VAR_DECL, id, ptr_type_node); |
78bd9046 AO |
877 | DECL_ARTIFICIAL (decl) = 1; |
878 | DECL_IGNORED_P (decl) = 1; | |
879 | DECL_INITIAL (decl) = decl; | |
880 | ||
881 | if (TREE_PUBLIC (id)) | |
882 | { | |
883 | TREE_PUBLIC (decl) = 1; | |
fc26fae3 | 884 | make_decl_one_only (decl, DECL_ASSEMBLER_NAME (decl)); |
78bd9046 AO |
885 | } |
886 | else | |
887 | TREE_STATIC (decl) = 1; | |
888 | ||
2a1ee410 | 889 | sym_ref = gen_rtx_SYMBOL_REF (Pmode, sym); |
a2649528 | 890 | sym = targetm.strip_name_encoding (sym); |
b03e9863 | 891 | if (TREE_PUBLIC (decl) && USE_LINKONCE_INDIRECT) |
a5c414e0 | 892 | fprintf (asm_out_file, "\t.hidden %sDW.ref.%s\n", user_label_prefix, sym); |
b03e9863 | 893 | assemble_variable (decl, 1, 1, 1); |
2919600a | 894 | assemble_integer (sym_ref, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1); |
2a1ee410 RH |
895 | |
896 | return 0; | |
897 | } | |
898 | ||
e1f9550a RH |
899 | /* Emit the constants queued through dw2_force_const_mem. */ |
900 | ||
2a1ee410 | 901 | void |
7080f735 | 902 | dw2_output_indirect_constants (void) |
2a1ee410 | 903 | { |
d6d26764 JJ |
904 | if (indirect_pool) |
905 | splay_tree_foreach (indirect_pool, dw2_output_indirect_constant_1, NULL); | |
2a1ee410 RH |
906 | } |
907 | ||
b03e9863 EB |
908 | /* Like dw2_asm_output_addr_rtx, but encode the pointer as directed. |
909 | If PUBLIC is set and the encoding is DW_EH_PE_indirect, the indirect | |
910 | reference is shared across the entire application (or DSO). */ | |
e1f9550a | 911 | |
2a1ee410 | 912 | void |
d858f359 | 913 | dw2_asm_output_encoded_addr_rtx (int encoding, rtx addr, bool is_public, |
e34d07f2 | 914 | const char *comment, ...) |
2a1ee410 RH |
915 | { |
916 | int size; | |
e34d07f2 | 917 | va_list ap; |
7080f735 | 918 | |
e34d07f2 | 919 | va_start (ap, comment); |
e1f9550a RH |
920 | |
921 | size = size_of_encoded_value (encoding); | |
2a1ee410 | 922 | |
099c8b17 RH |
923 | if (encoding == DW_EH_PE_aligned) |
924 | { | |
925 | assemble_align (POINTER_SIZE); | |
9f5cd0c5 RH |
926 | assemble_integer (addr, size, POINTER_SIZE, 1); |
927 | return; | |
099c8b17 RH |
928 | } |
929 | ||
3248917b RK |
930 | /* NULL is _always_ represented as a plain zero, as is 1 for Ada's |
931 | "all others". */ | |
932 | if (addr == const0_rtx || addr == const1_rtx) | |
c8af3574 | 933 | assemble_integer (addr, size, BITS_PER_UNIT, 1); |
e1f9550a | 934 | else |
2a1ee410 | 935 | { |
e1f9550a RH |
936 | restart: |
937 | /* Allow the target first crack at emitting this. Some of the | |
3a538a66 | 938 | special relocations require special directives instead of |
e1f9550a | 939 | just ".4byte" or whatever. */ |
2a1ee410 | 940 | #ifdef ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX |
e1f9550a RH |
941 | ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX (asm_out_file, encoding, size, |
942 | addr, done); | |
2a1ee410 RH |
943 | #endif |
944 | ||
e1f9550a RH |
945 | /* Indirection is used to get dynamic relocations out of a |
946 | read-only section. */ | |
947 | if (encoding & DW_EH_PE_indirect) | |
948 | { | |
949 | /* It is very tempting to use force_const_mem so that we share data | |
950 | with the normal constant pool. However, we've already emitted | |
951 | the constant pool for this function. Moreover, we'd like to | |
b03e9863 EB |
952 | share these constants across the entire unit of translation and |
953 | even, if possible, across the entire application (or DSO). */ | |
d858f359 | 954 | addr = dw2_force_const_mem (addr, is_public); |
e1f9550a RH |
955 | encoding &= ~DW_EH_PE_indirect; |
956 | goto restart; | |
957 | } | |
2a1ee410 | 958 | |
e1f9550a RH |
959 | switch (encoding & 0xF0) |
960 | { | |
961 | case DW_EH_PE_absptr: | |
301d03af | 962 | dw2_assemble_integer (size, addr); |
e1f9550a | 963 | break; |
2a1ee410 | 964 | |
e1f9550a | 965 | case DW_EH_PE_pcrel: |
ced3f397 | 966 | gcc_assert (GET_CODE (addr) == SYMBOL_REF); |
2a1ee410 | 967 | #ifdef ASM_OUTPUT_DWARF_PCREL |
e1f9550a | 968 | ASM_OUTPUT_DWARF_PCREL (asm_out_file, size, XSTR (addr, 0)); |
2a1ee410 | 969 | #else |
301d03af | 970 | dw2_assemble_integer (size, gen_rtx_MINUS (Pmode, addr, pc_rtx)); |
2a1ee410 | 971 | #endif |
e1f9550a | 972 | break; |
2a1ee410 | 973 | |
e1f9550a | 974 | default: |
3a538a66 | 975 | /* Other encodings should have been handled by |
e1f9550a | 976 | ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX. */ |
ced3f397 | 977 | gcc_unreachable (); |
e1f9550a | 978 | } |
2a1ee410 RH |
979 | |
980 | #ifdef ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX | |
e1f9550a | 981 | done:; |
2a1ee410 | 982 | #endif |
e1f9550a RH |
983 | } |
984 | ||
985 | if (flag_debug_asm && comment) | |
986 | { | |
987 | fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START); | |
988 | vfprintf (asm_out_file, comment, ap); | |
989 | } | |
2a1ee410 | 990 | fputc ('\n', asm_out_file); |
e1f9550a | 991 | |
e34d07f2 | 992 | va_end (ap); |
2a1ee410 | 993 | } |
17211ab5 GK |
994 | |
995 | #include "gt-dwarf2asm.h" |