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a85d7ed0 | 1 | /* tc-s390.c -- Assemble for the S390 |
ae6063d4 | 2 | Copyright 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
a85d7ed0 NC |
3 | Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). |
4 | ||
5 | This file is part of GAS, the GNU Assembler. | |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to the Free | |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
98d3f06f | 20 | 02111-1307, USA. */ |
a85d7ed0 NC |
21 | |
22 | #include <stdio.h> | |
a85d7ed0 | 23 | #include "as.h" |
3882b010 | 24 | #include "safe-ctype.h" |
a85d7ed0 NC |
25 | #include "subsegs.h" |
26 | #include "struc-symbol.h" | |
a161fe53 | 27 | #include "dwarf2dbg.h" |
a85d7ed0 NC |
28 | |
29 | #include "opcode/s390.h" | |
30 | #include "elf/s390.h" | |
31 | ||
16a419ba | 32 | /* The default architecture. */ |
a85d7ed0 NC |
33 | #ifndef DEFAULT_ARCH |
34 | #define DEFAULT_ARCH "s390" | |
35 | #endif | |
36 | static char *default_arch = DEFAULT_ARCH; | |
37 | /* Either 32 or 64, selects file format. */ | |
37a58793 MS |
38 | static int s390_arch_size = 0; |
39 | ||
40 | static unsigned int current_mode_mask = 0; | |
41 | static unsigned int current_cpu = -1U; | |
a85d7ed0 | 42 | |
b34976b6 | 43 | /* Whether to use user friendly register names. Default is TRUE. */ |
a85d7ed0 | 44 | #ifndef TARGET_REG_NAMES_P |
b34976b6 | 45 | #define TARGET_REG_NAMES_P TRUE |
a85d7ed0 NC |
46 | #endif |
47 | ||
b34976b6 | 48 | static bfd_boolean reg_names_p = TARGET_REG_NAMES_P; |
a85d7ed0 | 49 | |
16a419ba | 50 | /* Set to TRUE if we want to warn about zero base/index registers. */ |
b34976b6 | 51 | static bfd_boolean warn_areg_zero = FALSE; |
16a419ba | 52 | |
a85d7ed0 NC |
53 | /* Generic assembler global variables which must be defined by all |
54 | targets. */ | |
55 | ||
56 | const char comment_chars[] = "#"; | |
57 | ||
58 | /* Characters which start a comment at the beginning of a line. */ | |
59 | const char line_comment_chars[] = "#"; | |
60 | ||
61 | /* Characters which may be used to separate multiple commands on a | |
62 | single line. */ | |
63 | const char line_separator_chars[] = ";"; | |
64 | ||
65 | /* Characters which are used to indicate an exponent in a floating | |
66 | point number. */ | |
67 | const char EXP_CHARS[] = "eE"; | |
68 | ||
69 | /* Characters which mean that a number is a floating point constant, | |
70 | as in 0d1.0. */ | |
71 | const char FLT_CHARS[] = "dD"; | |
72 | ||
73 | /* The target specific pseudo-ops which we support. */ | |
74 | ||
75 | /* Define the prototypes for the pseudo-ops */ | |
76 | static void s390_byte PARAMS ((int)); | |
77 | static void s390_elf_cons PARAMS ((int)); | |
78 | static void s390_bss PARAMS ((int)); | |
79 | static void s390_insn PARAMS ((int)); | |
80 | static void s390_literals PARAMS ((int)); | |
81 | ||
82 | const pseudo_typeS md_pseudo_table[] = | |
83 | { | |
84 | { "align", s_align_bytes, 0 }, | |
98d3f06f | 85 | /* Pseudo-ops which must be defined. */ |
198ce79b | 86 | { "bss", s390_bss, 0 }, |
a85d7ed0 NC |
87 | { "insn", s390_insn, 0 }, |
88 | /* Pseudo-ops which must be overridden. */ | |
89 | { "byte", s390_byte, 0 }, | |
90 | { "short", s390_elf_cons, 2 }, | |
91 | { "long", s390_elf_cons, 4 }, | |
92 | { "quad", s390_elf_cons, 8 }, | |
93 | { "ltorg", s390_literals, 0 }, | |
94 | { "string", stringer, 2 }, | |
95 | { NULL, NULL, 0 } | |
96 | }; | |
97 | ||
98 | ||
99 | /* Structure to hold information about predefined registers. */ | |
100 | struct pd_reg | |
101 | { | |
102 | char *name; | |
103 | int value; | |
104 | }; | |
105 | ||
106 | /* List of registers that are pre-defined: | |
107 | ||
108 | Each access register has a predefined name of the form: | |
109 | a<reg_num> which has the value <reg_num>. | |
110 | ||
111 | Each control register has a predefined name of the form: | |
112 | c<reg_num> which has the value <reg_num>. | |
113 | ||
114 | Each general register has a predefined name of the form: | |
115 | r<reg_num> which has the value <reg_num>. | |
116 | ||
117 | Each floating point register a has predefined name of the form: | |
118 | f<reg_num> which has the value <reg_num>. | |
119 | ||
120 | There are individual registers as well: | |
121 | sp has the value 15 | |
122 | lit has the value 12 | |
123 | ||
98d3f06f | 124 | The table is sorted. Suitable for searching by a binary search. */ |
a85d7ed0 NC |
125 | |
126 | static const struct pd_reg pre_defined_registers[] = | |
127 | { | |
128 | { "a0", 0 }, /* Access registers */ | |
129 | { "a1", 1 }, | |
130 | { "a10", 10 }, | |
131 | { "a11", 11 }, | |
132 | { "a12", 12 }, | |
133 | { "a13", 13 }, | |
134 | { "a14", 14 }, | |
135 | { "a15", 15 }, | |
136 | { "a2", 2 }, | |
137 | { "a3", 3 }, | |
138 | { "a4", 4 }, | |
139 | { "a5", 5 }, | |
140 | { "a6", 6 }, | |
141 | { "a7", 7 }, | |
142 | { "a8", 8 }, | |
143 | { "a9", 9 }, | |
144 | ||
145 | { "c0", 0 }, /* Control registers */ | |
146 | { "c1", 1 }, | |
147 | { "c10", 10 }, | |
148 | { "c11", 11 }, | |
149 | { "c12", 12 }, | |
150 | { "c13", 13 }, | |
151 | { "c14", 14 }, | |
152 | { "c15", 15 }, | |
153 | { "c2", 2 }, | |
154 | { "c3", 3 }, | |
155 | { "c4", 4 }, | |
156 | { "c5", 5 }, | |
157 | { "c6", 6 }, | |
158 | { "c7", 7 }, | |
159 | { "c8", 8 }, | |
160 | { "c9", 9 }, | |
161 | ||
162 | { "f0", 0 }, /* Floating point registers */ | |
198ce79b AJ |
163 | { "f1", 1 }, |
164 | { "f10", 10 }, | |
165 | { "f11", 11 }, | |
166 | { "f12", 12 }, | |
167 | { "f13", 13 }, | |
168 | { "f14", 14 }, | |
169 | { "f15", 15 }, | |
170 | { "f2", 2 }, | |
171 | { "f3", 3 }, | |
172 | { "f4", 4 }, | |
173 | { "f5", 5 }, | |
174 | { "f6", 6 }, | |
175 | { "f7", 7 }, | |
176 | { "f8", 8 }, | |
177 | { "f9", 9 }, | |
a85d7ed0 NC |
178 | |
179 | { "lit", 13 }, /* Pointer to literal pool */ | |
180 | ||
181 | { "r0", 0 }, /* General purpose registers */ | |
182 | { "r1", 1 }, | |
183 | { "r10", 10 }, | |
184 | { "r11", 11 }, | |
185 | { "r12", 12 }, | |
186 | { "r13", 13 }, | |
187 | { "r14", 14 }, | |
188 | { "r15", 15 }, | |
189 | { "r2", 2 }, | |
190 | { "r3", 3 }, | |
191 | { "r4", 4 }, | |
192 | { "r5", 5 }, | |
193 | { "r6", 6 }, | |
194 | { "r7", 7 }, | |
195 | { "r8", 8 }, | |
196 | { "r9", 9 }, | |
197 | ||
198 | { "sp", 15 }, /* Stack pointer */ | |
199 | ||
200 | }; | |
201 | ||
07726851 | 202 | #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg)) |
a85d7ed0 | 203 | |
9d654c1c AJ |
204 | static int reg_name_search |
205 | PARAMS ((const struct pd_reg *, int, const char *)); | |
b34976b6 | 206 | static bfd_boolean register_name PARAMS ((expressionS *)); |
9d654c1c AJ |
207 | static void init_default_arch PARAMS ((void)); |
208 | static void s390_insert_operand | |
209 | PARAMS ((unsigned char *, const struct s390_operand *, offsetT, char *, | |
210 | unsigned int)); | |
211 | static char *md_gather_operands | |
212 | PARAMS ((char *, unsigned char *, const struct s390_opcode *)); | |
213 | ||
a85d7ed0 NC |
214 | /* Given NAME, find the register number associated with that name, return |
215 | the integer value associated with the given name or -1 on failure. */ | |
216 | ||
217 | static int | |
218 | reg_name_search (regs, regcount, name) | |
219 | const struct pd_reg *regs; | |
220 | int regcount; | |
221 | const char *name; | |
222 | { | |
223 | int middle, low, high; | |
224 | int cmp; | |
225 | ||
226 | low = 0; | |
227 | high = regcount - 1; | |
228 | ||
229 | do | |
230 | { | |
231 | middle = (low + high) / 2; | |
232 | cmp = strcasecmp (name, regs[middle].name); | |
233 | if (cmp < 0) | |
234 | high = middle - 1; | |
235 | else if (cmp > 0) | |
236 | low = middle + 1; | |
237 | else | |
238 | return regs[middle].value; | |
239 | } | |
240 | while (low <= high); | |
241 | ||
242 | return -1; | |
243 | } | |
244 | ||
245 | ||
246 | /* | |
247 | * Summary of register_name(). | |
248 | * | |
249 | * in: Input_line_pointer points to 1st char of operand. | |
250 | * | |
251 | * out: A expressionS. | |
252 | * The operand may have been a register: in this case, X_op == O_register, | |
253 | * X_add_number is set to the register number, and truth is returned. | |
254 | * Input_line_pointer->(next non-blank) char after operand, or is in its | |
255 | * original state. | |
256 | */ | |
257 | ||
b34976b6 | 258 | static bfd_boolean |
a85d7ed0 NC |
259 | register_name (expressionP) |
260 | expressionS *expressionP; | |
261 | { | |
262 | int reg_number; | |
263 | char *name; | |
264 | char *start; | |
265 | char c; | |
266 | ||
468cced8 | 267 | /* Find the spelling of the operand. */ |
a85d7ed0 | 268 | start = name = input_line_pointer; |
3882b010 | 269 | if (name[0] == '%' && ISALPHA (name[1])) |
a85d7ed0 NC |
270 | name = ++input_line_pointer; |
271 | else | |
b34976b6 | 272 | return FALSE; |
a85d7ed0 NC |
273 | |
274 | c = get_symbol_end (); | |
275 | reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name); | |
276 | ||
468cced8 AM |
277 | /* Put back the delimiting char. */ |
278 | *input_line_pointer = c; | |
279 | ||
280 | /* Look to see if it's in the register table. */ | |
198ce79b | 281 | if (reg_number >= 0) |
a85d7ed0 NC |
282 | { |
283 | expressionP->X_op = O_register; | |
284 | expressionP->X_add_number = reg_number; | |
198ce79b | 285 | |
468cced8 | 286 | /* Make the rest nice. */ |
a85d7ed0 NC |
287 | expressionP->X_add_symbol = NULL; |
288 | expressionP->X_op_symbol = NULL; | |
b34976b6 | 289 | return TRUE; |
a85d7ed0 | 290 | } |
468cced8 AM |
291 | |
292 | /* Reset the line as if we had not done anything. */ | |
293 | input_line_pointer = start; | |
b34976b6 | 294 | return FALSE; |
a85d7ed0 NC |
295 | } |
296 | ||
297 | /* Local variables. */ | |
298 | ||
299 | /* Opformat hash table. */ | |
300 | static struct hash_control *s390_opformat_hash; | |
301 | ||
302 | /* Opcode hash table. */ | |
303 | static struct hash_control *s390_opcode_hash; | |
304 | ||
305 | /* Flags to set in the elf header */ | |
306 | static flagword s390_flags = 0; | |
307 | ||
308 | symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE_" */ | |
309 | ||
310 | #ifndef WORKING_DOT_WORD | |
311 | const int md_short_jump_size = 4; | |
312 | const int md_long_jump_size = 4; | |
313 | #endif | |
314 | ||
5a38dc70 | 315 | const char *md_shortopts = "A:m:kVQ:"; |
a85d7ed0 NC |
316 | struct option md_longopts[] = { |
317 | {NULL, no_argument, NULL, 0} | |
318 | }; | |
07726851 | 319 | size_t md_longopts_size = sizeof (md_longopts); |
a85d7ed0 NC |
320 | |
321 | /* Initialize the default opcode arch and word size from the default | |
37a58793 | 322 | architecture name if not specified by an option. */ |
a85d7ed0 NC |
323 | static void |
324 | init_default_arch () | |
325 | { | |
07726851 | 326 | if (strcmp (default_arch, "s390") == 0) |
07855bec | 327 | { |
37a58793 MS |
328 | if (s390_arch_size == 0) |
329 | s390_arch_size = 32; | |
07855bec | 330 | } |
07726851 | 331 | else if (strcmp (default_arch, "s390x") == 0) |
07855bec | 332 | { |
37a58793 MS |
333 | if (s390_arch_size == 0) |
334 | s390_arch_size = 64; | |
07855bec NC |
335 | } |
336 | else | |
a85d7ed0 | 337 | as_fatal ("Invalid default architecture, broken assembler."); |
df9a398f MS |
338 | |
339 | if (current_mode_mask == 0) | |
340 | { | |
341 | if (s390_arch_size == 32) | |
342 | current_mode_mask = 1 << S390_OPCODE_ESA; | |
343 | else | |
344 | current_mode_mask = 1 << S390_OPCODE_ZARCH; | |
345 | } | |
346 | if (current_cpu == -1U) | |
347 | { | |
348 | if (current_mode_mask == (1 << S390_OPCODE_ESA)) | |
349 | current_cpu = S390_OPCODE_G5; | |
350 | else | |
351 | current_cpu = S390_OPCODE_Z900; | |
352 | } | |
a85d7ed0 NC |
353 | } |
354 | ||
355 | /* Called by TARGET_FORMAT. */ | |
356 | const char * | |
357 | s390_target_format () | |
358 | { | |
359 | /* We don't get a chance to initialize anything before we're called, | |
360 | so handle that now. */ | |
2ebb4b88 | 361 | init_default_arch (); |
a85d7ed0 NC |
362 | |
363 | return s390_arch_size == 64 ? "elf64-s390" : "elf32-s390"; | |
364 | } | |
365 | ||
366 | int | |
367 | md_parse_option (c, arg) | |
368 | int c; | |
369 | char *arg; | |
370 | { | |
07855bec NC |
371 | switch (c) |
372 | { | |
373 | /* -k: Ignore for FreeBSD compatibility. */ | |
374 | case 'k': | |
375 | break; | |
376 | case 'm': | |
377 | if (arg != NULL && strcmp (arg, "regnames") == 0) | |
b34976b6 | 378 | reg_names_p = TRUE; |
198ce79b | 379 | |
07855bec | 380 | else if (arg != NULL && strcmp (arg, "no-regnames") == 0) |
b34976b6 | 381 | reg_names_p = FALSE; |
198ce79b | 382 | |
16a419ba NC |
383 | else if (arg != NULL && strcmp (arg, "warn-areg-zero") == 0) |
384 | warn_areg_zero = TRUE; | |
385 | ||
ff0fb565 | 386 | else if (arg != NULL && strcmp (arg, "31") == 0) |
75504fed | 387 | s390_arch_size = 32; |
ff0fb565 MS |
388 | |
389 | else if (arg != NULL && strcmp (arg, "64") == 0) | |
390 | s390_arch_size = 64; | |
391 | ||
37a58793 MS |
392 | else if (arg != NULL && strcmp (arg, "esa") == 0) |
393 | current_mode_mask = 1 << S390_OPCODE_ESA; | |
394 | ||
395 | else if (arg != NULL && strcmp (arg, "zarch") == 0) | |
396 | current_mode_mask = 1 << S390_OPCODE_ZARCH; | |
397 | ||
398 | else if (arg != NULL && strncmp (arg, "arch=", 5) == 0) | |
399 | { | |
400 | if (strcmp (arg + 5, "g5") == 0) | |
401 | current_cpu = S390_OPCODE_G5; | |
402 | else if (strcmp (arg + 5, "g6") == 0) | |
403 | current_cpu = S390_OPCODE_G6; | |
404 | else if (strcmp (arg + 5, "z900") == 0) | |
405 | current_cpu = S390_OPCODE_Z900; | |
933fbc29 MS |
406 | else if (strcmp (arg + 5, "z990") == 0) |
407 | current_cpu = S390_OPCODE_Z990; | |
37a58793 MS |
408 | else |
409 | { | |
410 | as_bad (_("invalid switch -m%s"), arg); | |
411 | return 0; | |
412 | } | |
413 | } | |
414 | ||
07855bec NC |
415 | else |
416 | { | |
417 | as_bad (_("invalid switch -m%s"), arg); | |
418 | return 0; | |
419 | } | |
420 | break; | |
198ce79b | 421 | |
07855bec | 422 | case 'A': |
37a58793 | 423 | /* Option -A is deprecated. Still available for compatability. */ |
07855bec | 424 | if (arg != NULL && strcmp (arg, "esa") == 0) |
37a58793 | 425 | current_cpu = S390_OPCODE_G5; |
07855bec | 426 | else if (arg != NULL && strcmp (arg, "esame") == 0) |
37a58793 | 427 | current_cpu = S390_OPCODE_Z900; |
07855bec NC |
428 | else |
429 | as_bad ("invalid architecture -A%s", arg); | |
07855bec NC |
430 | break; |
431 | ||
432 | /* -V: SVR4 argument to print version ID. */ | |
433 | case 'V': | |
434 | print_version_id (); | |
435 | break; | |
198ce79b | 436 | |
07855bec NC |
437 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section |
438 | should be emitted or not. FIXME: Not implemented. */ | |
439 | case 'Q': | |
440 | break; | |
198ce79b | 441 | |
07855bec NC |
442 | default: |
443 | return 0; | |
444 | } | |
198ce79b | 445 | |
a85d7ed0 NC |
446 | return 1; |
447 | } | |
448 | ||
449 | void | |
450 | md_show_usage (stream) | |
451 | FILE *stream; | |
452 | { | |
07855bec | 453 | fprintf (stream, _("\ |
16a419ba NC |
454 | S390 options:\n\ |
455 | -mregnames Allow symbolic names for registers\n\ | |
456 | -mwarn-areg-zero Warn about zero base/index registers\n\ | |
ff0fb565 MS |
457 | -mno-regnames Do not allow symbolic names for registers\n\ |
458 | -m31 Set file format to 31 bit format\n\ | |
459 | -m64 Set file format to 64 bit format\n")); | |
07855bec | 460 | fprintf (stream, _("\ |
16a419ba NC |
461 | -V print assembler version number\n\ |
462 | -Qy, -Qn ignored\n")); | |
a85d7ed0 NC |
463 | } |
464 | ||
465 | /* This function is called when the assembler starts up. It is called | |
466 | after the options have been parsed and the output file has been | |
16a419ba | 467 | opened. */ |
a85d7ed0 NC |
468 | |
469 | void | |
470 | md_begin () | |
471 | { | |
472 | register const struct s390_opcode *op; | |
473 | const struct s390_opcode *op_end; | |
b34976b6 | 474 | bfd_boolean dup_insn = FALSE; |
a85d7ed0 NC |
475 | const char *retval; |
476 | ||
ff0fb565 | 477 | /* Give a warning if the combination -m64-bit and -Aesa is used. */ |
37a58793 | 478 | if (s390_arch_size == 64 && current_cpu < S390_OPCODE_Z900) |
ff0fb565 MS |
479 | as_warn ("The 64 bit file format is used without esame instructions."); |
480 | ||
16a419ba | 481 | /* Set the ELF flags if desired. */ |
a85d7ed0 NC |
482 | if (s390_flags) |
483 | bfd_set_private_flags (stdoutput, s390_flags); | |
484 | ||
485 | /* Insert the opcode formats into a hash table. */ | |
486 | s390_opformat_hash = hash_new (); | |
487 | ||
488 | op_end = s390_opformats + s390_num_opformats; | |
07855bec NC |
489 | for (op = s390_opformats; op < op_end; op++) |
490 | { | |
491 | retval = hash_insert (s390_opformat_hash, op->name, (PTR) op); | |
492 | if (retval != (const char *) NULL) | |
493 | { | |
494 | as_bad (_("Internal assembler error for instruction format %s"), | |
495 | op->name); | |
b34976b6 | 496 | dup_insn = TRUE; |
07855bec NC |
497 | } |
498 | } | |
a85d7ed0 NC |
499 | |
500 | /* Insert the opcodes into a hash table. */ | |
501 | s390_opcode_hash = hash_new (); | |
502 | ||
503 | op_end = s390_opcodes + s390_num_opcodes; | |
07855bec | 504 | for (op = s390_opcodes; op < op_end; op++) |
933fbc29 MS |
505 | if (op->min_cpu <= current_cpu) |
506 | { | |
507 | retval = hash_insert (s390_opcode_hash, op->name, (PTR) op); | |
508 | if (retval != (const char *) NULL) | |
509 | { | |
510 | as_bad (_("Internal assembler error for instruction %s"), | |
511 | op->name); | |
512 | dup_insn = TRUE; | |
513 | } | |
514 | while (op < op_end - 1 && strcmp (op->name, op[1].name) == 0) | |
515 | op++; | |
516 | } | |
07855bec | 517 | |
a85d7ed0 NC |
518 | if (dup_insn) |
519 | abort (); | |
520 | ||
521 | record_alignment (text_section, 2); | |
522 | record_alignment (data_section, 2); | |
523 | record_alignment (bss_section, 2); | |
524 | ||
525 | } | |
526 | ||
527 | /* Called after all assembly has been done. */ | |
528 | void | |
529 | s390_md_end () | |
530 | { | |
07855bec | 531 | if (s390_arch_size == 64) |
ff0fb565 | 532 | bfd_set_arch_mach (stdoutput, bfd_arch_s390, bfd_mach_s390_64); |
07855bec | 533 | else |
ff0fb565 | 534 | bfd_set_arch_mach (stdoutput, bfd_arch_s390, bfd_mach_s390_31); |
a85d7ed0 NC |
535 | } |
536 | ||
537 | void | |
538 | s390_align_code (fragP, count) | |
539 | fragS *fragP; | |
540 | int count; | |
541 | { | |
542 | /* We use nop pattern 0x0707. */ | |
07855bec NC |
543 | if (count > 0) |
544 | { | |
07726851 | 545 | memset (fragP->fr_literal + fragP->fr_fix, 0x07, count); |
07855bec NC |
546 | fragP->fr_var = count; |
547 | } | |
a85d7ed0 NC |
548 | } |
549 | ||
550 | /* Insert an operand value into an instruction. */ | |
551 | ||
552 | static void | |
553 | s390_insert_operand (insn, operand, val, file, line) | |
554 | unsigned char *insn; | |
555 | const struct s390_operand *operand; | |
556 | offsetT val; | |
557 | char *file; | |
558 | unsigned int line; | |
559 | { | |
560 | addressT uval; | |
561 | int offset; | |
562 | ||
07855bec NC |
563 | if (operand->flags & (S390_OPERAND_SIGNED|S390_OPERAND_PCREL)) |
564 | { | |
565 | offsetT min, max; | |
566 | ||
567 | max = ((offsetT) 1 << (operand->bits - 1)) - 1; | |
568 | min = - ((offsetT) 1 << (operand->bits - 1)); | |
569 | /* Halve PCREL operands. */ | |
570 | if (operand->flags & S390_OPERAND_PCREL) | |
571 | val >>= 1; | |
572 | /* Check for underflow / overflow. */ | |
573 | if (val < min || val > max) | |
574 | { | |
575 | const char *err = | |
576 | "operand out of range (%s not between %ld and %ld)"; | |
577 | char buf[100]; | |
578 | ||
579 | if (operand->flags & S390_OPERAND_PCREL) | |
580 | { | |
581 | val <<= 1; | |
582 | min <<= 1; | |
583 | max <<= 1; | |
584 | } | |
585 | sprint_value (buf, val); | |
586 | if (file == (char *) NULL) | |
587 | as_bad (err, buf, (int) min, (int) max); | |
588 | else | |
589 | as_bad_where (file, line, err, buf, (int) min, (int) max); | |
590 | return; | |
591 | } | |
592 | /* val is ok, now restrict it to operand->bits bits. */ | |
593 | uval = (addressT) val & ((((addressT) 1 << (operand->bits-1)) << 1) - 1); | |
933fbc29 MS |
594 | /* val is restrict, now check for special case. */ |
595 | if (operand->bits == 20 && operand->shift == 20) | |
596 | uval = (uval >> 12) | ((uval & 0xfff) << 8); | |
a85d7ed0 | 597 | } |
07855bec NC |
598 | else |
599 | { | |
600 | addressT min, max; | |
198ce79b | 601 | |
98d3f06f | 602 | max = (((addressT) 1 << (operand->bits - 1)) << 1) - 1; |
07855bec NC |
603 | min = (offsetT) 0; |
604 | uval = (addressT) val; | |
605 | /* Length x in an instructions has real length x+1. */ | |
606 | if (operand->flags & S390_OPERAND_LENGTH) | |
607 | uval--; | |
608 | /* Check for underflow / overflow. */ | |
609 | if (uval < min || uval > max) | |
610 | { | |
611 | const char *err = | |
612 | "operand out of range (%s not between %ld and %ld)"; | |
613 | char buf[100]; | |
198ce79b | 614 | |
07855bec NC |
615 | if (operand->flags & S390_OPERAND_LENGTH) |
616 | { | |
617 | uval++; | |
618 | min++; | |
619 | max++; | |
620 | } | |
621 | sprint_value (buf, uval); | |
622 | if (file == (char *) NULL) | |
623 | as_bad (err, buf, (int) min, (int) max); | |
624 | else | |
625 | as_bad_where (file, line, err, buf, (int) min, (int) max); | |
626 | return; | |
627 | } | |
a85d7ed0 | 628 | } |
a85d7ed0 NC |
629 | |
630 | /* Insert fragments of the operand byte for byte. */ | |
631 | offset = operand->shift + operand->bits; | |
632 | uval <<= (-offset) & 7; | |
98d3f06f | 633 | insn += (offset - 1) / 8; |
07855bec NC |
634 | while (uval != 0) |
635 | { | |
636 | *insn-- |= uval; | |
637 | uval >>= 8; | |
638 | } | |
a85d7ed0 NC |
639 | } |
640 | ||
1971b29d MS |
641 | struct map_tls |
642 | { | |
643 | char *string; | |
644 | int length; | |
645 | bfd_reloc_code_real_type reloc; | |
646 | }; | |
647 | ||
648 | static bfd_reloc_code_real_type s390_tls_suffix | |
649 | PARAMS ((char **, expressionS *)); | |
650 | ||
651 | /* Parse tls marker and return the desired relocation. */ | |
652 | static bfd_reloc_code_real_type | |
653 | s390_tls_suffix (str_p, exp_p) | |
654 | char **str_p; | |
655 | expressionS *exp_p; | |
656 | { | |
657 | static struct map_tls mapping[] = | |
658 | { | |
659 | { "tls_load", 8, BFD_RELOC_390_TLS_LOAD }, | |
660 | { "tls_gdcall", 10, BFD_RELOC_390_TLS_GDCALL }, | |
661 | { "tls_ldcall", 10, BFD_RELOC_390_TLS_LDCALL }, | |
662 | { NULL, 0, BFD_RELOC_UNUSED } | |
663 | }; | |
664 | struct map_tls *ptr; | |
665 | char *orig_line; | |
666 | char *str; | |
667 | char *ident; | |
668 | int len; | |
669 | ||
670 | str = *str_p; | |
671 | if (*str++ != ':') | |
672 | return BFD_RELOC_UNUSED; | |
673 | ||
674 | ident = str; | |
675 | while (ISIDNUM (*str)) | |
676 | str++; | |
677 | len = str - ident; | |
678 | if (*str++ != ':') | |
679 | return BFD_RELOC_UNUSED; | |
680 | ||
681 | orig_line = input_line_pointer; | |
682 | input_line_pointer = str; | |
683 | expression (exp_p); | |
684 | str = input_line_pointer; | |
685 | if (&input_line_pointer != str_p) | |
686 | input_line_pointer = orig_line; | |
687 | ||
688 | if (exp_p->X_op != O_symbol) | |
689 | return BFD_RELOC_UNUSED; | |
690 | ||
691 | for (ptr = &mapping[0]; ptr->length > 0; ptr++) | |
692 | if (len == ptr->length | |
693 | && strncasecmp (ident, ptr->string, ptr->length) == 0) | |
694 | { | |
695 | /* Found a matching tls suffix. */ | |
696 | *str_p = str; | |
697 | return ptr->reloc; | |
698 | } | |
699 | return BFD_RELOC_UNUSED; | |
700 | } | |
701 | ||
a85d7ed0 | 702 | /* Structure used to hold suffixes. */ |
07855bec NC |
703 | typedef enum |
704 | { | |
705 | ELF_SUFFIX_NONE = 0, | |
706 | ELF_SUFFIX_GOT, | |
707 | ELF_SUFFIX_PLT, | |
2a19f73f MS |
708 | ELF_SUFFIX_GOTENT, |
709 | ELF_SUFFIX_GOTOFF, | |
710 | ELF_SUFFIX_GOTPLT, | |
1971b29d MS |
711 | ELF_SUFFIX_PLTOFF, |
712 | ELF_SUFFIX_TLS_GD, | |
713 | ELF_SUFFIX_TLS_GOTIE, | |
714 | ELF_SUFFIX_TLS_IE, | |
715 | ELF_SUFFIX_TLS_LDM, | |
716 | ELF_SUFFIX_TLS_LDO, | |
717 | ELF_SUFFIX_TLS_LE | |
07855bec NC |
718 | } |
719 | elf_suffix_type; | |
720 | ||
721 | struct map_bfd | |
722 | { | |
723 | char *string; | |
724 | int length; | |
725 | elf_suffix_type suffix; | |
726 | }; | |
a85d7ed0 | 727 | |
9d654c1c AJ |
728 | static elf_suffix_type s390_elf_suffix PARAMS ((char **, expressionS *)); |
729 | static int s390_exp_compare PARAMS ((expressionS *exp1, expressionS *exp2)); | |
730 | static elf_suffix_type s390_lit_suffix | |
731 | PARAMS ((char **, expressionS *, elf_suffix_type)); | |
732 | ||
733 | ||
a85d7ed0 NC |
734 | /* Parse @got/@plt/@gotoff. and return the desired relocation. */ |
735 | static elf_suffix_type | |
736 | s390_elf_suffix (str_p, exp_p) | |
737 | char **str_p; | |
738 | expressionS *exp_p; | |
739 | { | |
07855bec NC |
740 | static struct map_bfd mapping[] = |
741 | { | |
a85d7ed0 NC |
742 | { "got", 3, ELF_SUFFIX_GOT }, |
743 | { "got12", 5, ELF_SUFFIX_GOT }, | |
744 | { "plt", 3, ELF_SUFFIX_PLT }, | |
745 | { "gotent", 6, ELF_SUFFIX_GOTENT }, | |
2a19f73f MS |
746 | { "gotoff", 6, ELF_SUFFIX_GOTOFF }, |
747 | { "gotplt", 6, ELF_SUFFIX_GOTPLT }, | |
748 | { "pltoff", 6, ELF_SUFFIX_PLTOFF }, | |
1971b29d MS |
749 | { "tlsgd", 5, ELF_SUFFIX_TLS_GD }, |
750 | { "gotntpoff", 9, ELF_SUFFIX_TLS_GOTIE }, | |
751 | { "indntpoff", 9, ELF_SUFFIX_TLS_IE }, | |
752 | { "tlsldm", 6, ELF_SUFFIX_TLS_LDM }, | |
753 | { "dtpoff", 6, ELF_SUFFIX_TLS_LDO }, | |
754 | { "ntpoff", 6, ELF_SUFFIX_TLS_LE }, | |
a85d7ed0 NC |
755 | { NULL, 0, ELF_SUFFIX_NONE } |
756 | }; | |
757 | ||
758 | struct map_bfd *ptr; | |
759 | char *str = *str_p; | |
760 | char *ident; | |
761 | int len; | |
762 | ||
763 | if (*str++ != '@') | |
764 | return ELF_SUFFIX_NONE; | |
765 | ||
766 | ident = str; | |
3882b010 | 767 | while (ISALNUM (*str)) |
a85d7ed0 NC |
768 | str++; |
769 | len = str - ident; | |
770 | ||
771 | for (ptr = &mapping[0]; ptr->length > 0; ptr++) | |
16a419ba NC |
772 | if (len == ptr->length |
773 | && strncasecmp (ident, ptr->string, ptr->length) == 0) | |
07855bec NC |
774 | { |
775 | if (exp_p->X_add_number != 0) | |
776 | as_warn (_("identifier+constant@%s means identifier@%s+constant"), | |
777 | ptr->string, ptr->string); | |
778 | /* Now check for identifier@suffix+constant. */ | |
779 | if (*str == '-' || *str == '+') | |
780 | { | |
781 | char *orig_line = input_line_pointer; | |
782 | expressionS new_exp; | |
783 | ||
784 | input_line_pointer = str; | |
785 | expression (&new_exp); | |
786 | ||
787 | switch (new_exp.X_op) | |
788 | { | |
789 | case O_constant: /* X_add_number (a constant expression). */ | |
790 | exp_p->X_add_number += new_exp.X_add_number; | |
791 | str = input_line_pointer; | |
792 | break; | |
793 | case O_symbol: /* X_add_symbol + X_add_number. */ | |
794 | /* this case is used for e.g. xyz@PLT+.Label. */ | |
795 | exp_p->X_add_number += new_exp.X_add_number; | |
796 | exp_p->X_op_symbol = new_exp.X_add_symbol; | |
797 | exp_p->X_op = O_add; | |
798 | str = input_line_pointer; | |
799 | break; | |
800 | case O_uminus: /* (- X_add_symbol) + X_add_number. */ | |
801 | /* this case is used for e.g. xyz@PLT-.Label. */ | |
802 | exp_p->X_add_number += new_exp.X_add_number; | |
803 | exp_p->X_op_symbol = new_exp.X_add_symbol; | |
804 | exp_p->X_op = O_subtract; | |
805 | str = input_line_pointer; | |
806 | break; | |
807 | default: | |
808 | break; | |
809 | } | |
810 | ||
811 | /* If s390_elf_suffix has not been called with | |
812 | &input_line_pointer as first parameter, we have | |
813 | clobbered the input_line_pointer. We have to | |
814 | undo that. */ | |
815 | if (&input_line_pointer != str_p) | |
816 | input_line_pointer = orig_line; | |
a85d7ed0 | 817 | } |
07855bec NC |
818 | *str_p = str; |
819 | return ptr->suffix; | |
a85d7ed0 | 820 | } |
a85d7ed0 NC |
821 | |
822 | return BFD_RELOC_UNUSED; | |
823 | } | |
824 | ||
825 | /* Structure used to hold a literal pool entry. */ | |
07855bec NC |
826 | struct s390_lpe |
827 | { | |
828 | struct s390_lpe *next; | |
829 | expressionS ex; | |
830 | FLONUM_TYPE floatnum; /* used if X_op == O_big && X_add_number <= 0 */ | |
831 | LITTLENUM_TYPE bignum[4]; /* used if X_op == O_big && X_add_number > 0 */ | |
832 | int nbytes; | |
833 | bfd_reloc_code_real_type reloc; | |
834 | symbolS *sym; | |
835 | }; | |
a85d7ed0 NC |
836 | |
837 | static struct s390_lpe *lpe_free_list = NULL; | |
838 | static struct s390_lpe *lpe_list = NULL; | |
839 | static struct s390_lpe *lpe_list_tail = NULL; | |
840 | static symbolS *lp_sym = NULL; | |
841 | static int lp_count = 0; | |
842 | static int lpe_count = 0; | |
843 | ||
844 | static int | |
98d3f06f | 845 | s390_exp_compare (exp1, exp2) |
a85d7ed0 NC |
846 | expressionS *exp1; |
847 | expressionS *exp2; | |
848 | { | |
849 | if (exp1->X_op != exp2->X_op) | |
850 | return 0; | |
851 | ||
07855bec NC |
852 | switch (exp1->X_op) |
853 | { | |
854 | case O_constant: /* X_add_number must be equal. */ | |
855 | case O_register: | |
856 | return exp1->X_add_number == exp2->X_add_number; | |
857 | ||
858 | case O_big: | |
198ce79b | 859 | as_bad (_("Can't handle O_big in s390_exp_compare")); |
07855bec NC |
860 | |
861 | case O_symbol: /* X_add_symbol & X_add_number must be equal. */ | |
862 | case O_symbol_rva: | |
863 | case O_uminus: | |
864 | case O_bit_not: | |
865 | case O_logical_not: | |
16a419ba NC |
866 | return (exp1->X_add_symbol == exp2->X_add_symbol) |
867 | && (exp1->X_add_number == exp2->X_add_number); | |
07855bec NC |
868 | |
869 | case O_multiply: /* X_add_symbol,X_op_symbol&X_add_number must be equal. */ | |
870 | case O_divide: | |
871 | case O_modulus: | |
872 | case O_left_shift: | |
873 | case O_right_shift: | |
874 | case O_bit_inclusive_or: | |
875 | case O_bit_or_not: | |
876 | case O_bit_exclusive_or: | |
877 | case O_bit_and: | |
878 | case O_add: | |
879 | case O_subtract: | |
880 | case O_eq: | |
881 | case O_ne: | |
882 | case O_lt: | |
883 | case O_le: | |
884 | case O_ge: | |
885 | case O_gt: | |
886 | case O_logical_and: | |
887 | case O_logical_or: | |
16a419ba NC |
888 | return (exp1->X_add_symbol == exp2->X_add_symbol) |
889 | && (exp1->X_op_symbol == exp2->X_op_symbol) | |
890 | && (exp1->X_add_number == exp2->X_add_number); | |
07855bec | 891 | default: |
98d3f06f KH |
892 | return 0; |
893 | } | |
a85d7ed0 NC |
894 | } |
895 | ||
896 | /* Test for @lit and if its present make an entry in the literal pool and | |
897 | modify the current expression to be an offset into the literal pool. */ | |
898 | static elf_suffix_type | |
899 | s390_lit_suffix (str_p, exp_p, suffix) | |
900 | char **str_p; | |
901 | expressionS *exp_p; | |
902 | elf_suffix_type suffix; | |
903 | { | |
904 | bfd_reloc_code_real_type reloc; | |
905 | char tmp_name[64]; | |
906 | char *str = *str_p; | |
907 | char *ident; | |
908 | struct s390_lpe *lpe; | |
909 | int nbytes, len; | |
910 | ||
911 | if (*str++ != ':') | |
912 | return suffix; /* No modification. */ | |
198ce79b | 913 | |
a85d7ed0 NC |
914 | /* We look for a suffix of the form "@lit1", "@lit2", "@lit4" or "@lit8". */ |
915 | ident = str; | |
3882b010 | 916 | while (ISALNUM (*str)) |
a85d7ed0 NC |
917 | str++; |
918 | len = str - ident; | |
16a419ba NC |
919 | if (len != 4 || strncasecmp (ident, "lit", 3) != 0 |
920 | || (ident[3]!='1' && ident[3]!='2' && ident[3]!='4' && ident[3]!='8')) | |
a85d7ed0 NC |
921 | return suffix; /* no modification */ |
922 | nbytes = ident[3] - '0'; | |
923 | ||
924 | reloc = BFD_RELOC_UNUSED; | |
07855bec NC |
925 | if (suffix == ELF_SUFFIX_GOT) |
926 | { | |
927 | if (nbytes == 2) | |
928 | reloc = BFD_RELOC_390_GOT16; | |
929 | else if (nbytes == 4) | |
930 | reloc = BFD_RELOC_32_GOT_PCREL; | |
931 | else if (nbytes == 8) | |
932 | reloc = BFD_RELOC_390_GOT64; | |
933 | } | |
934 | else if (suffix == ELF_SUFFIX_PLT) | |
935 | { | |
936 | if (nbytes == 4) | |
937 | reloc = BFD_RELOC_390_PLT32; | |
938 | else if (nbytes == 8) | |
939 | reloc = BFD_RELOC_390_PLT64; | |
940 | } | |
a85d7ed0 | 941 | |
07855bec | 942 | if (suffix != ELF_SUFFIX_NONE && reloc == BFD_RELOC_UNUSED) |
a85d7ed0 | 943 | as_bad (_("Invalid suffix for literal pool entry")); |
a85d7ed0 NC |
944 | |
945 | /* Search the pool if the new entry is a duplicate. */ | |
07855bec NC |
946 | if (exp_p->X_op == O_big) |
947 | { | |
948 | /* Special processing for big numbers. */ | |
949 | for (lpe = lpe_list; lpe != NULL; lpe = lpe->next) | |
950 | { | |
951 | if (lpe->ex.X_op == O_big) | |
952 | { | |
953 | if (exp_p->X_add_number <= 0 && lpe->ex.X_add_number <= 0) | |
954 | { | |
955 | if (memcmp (&generic_floating_point_number, &lpe->floatnum, | |
956 | sizeof (FLONUM_TYPE)) == 0) | |
957 | break; | |
958 | } | |
959 | else if (exp_p->X_add_number == lpe->ex.X_add_number) | |
960 | { | |
961 | if (memcmp (generic_bignum, lpe->bignum, | |
962 | sizeof (LITTLENUM_TYPE)*exp_p->X_add_number) == 0) | |
963 | break; | |
964 | } | |
965 | } | |
966 | } | |
a85d7ed0 | 967 | } |
07855bec NC |
968 | else |
969 | { | |
970 | /* Processing for 'normal' data types. */ | |
971 | for (lpe = lpe_list; lpe != NULL; lpe = lpe->next) | |
16a419ba | 972 | if (lpe->nbytes == nbytes && lpe->reloc == reloc |
98d3f06f | 973 | && s390_exp_compare (exp_p, &lpe->ex) != 0) |
07855bec | 974 | break; |
a85d7ed0 | 975 | } |
07855bec NC |
976 | |
977 | if (lpe == NULL) | |
978 | { | |
979 | /* A new literal. */ | |
980 | if (lpe_free_list != NULL) | |
981 | { | |
982 | lpe = lpe_free_list; | |
983 | lpe_free_list = lpe_free_list->next; | |
984 | } | |
a85d7ed0 | 985 | else |
07855bec | 986 | { |
98d3f06f | 987 | lpe = (struct s390_lpe *) xmalloc (sizeof (struct s390_lpe)); |
07855bec NC |
988 | } |
989 | ||
990 | lpe->ex = *exp_p; | |
991 | ||
992 | if (exp_p->X_op == O_big) | |
993 | { | |
994 | if (exp_p->X_add_number <= 0) | |
995 | lpe->floatnum = generic_floating_point_number; | |
996 | else if (exp_p->X_add_number <= 4) | |
997 | memcpy (lpe->bignum, generic_bignum, | |
98d3f06f | 998 | exp_p->X_add_number * sizeof (LITTLENUM_TYPE)); |
07855bec NC |
999 | else |
1000 | as_bad (_("Big number is too big")); | |
1001 | } | |
1002 | ||
1003 | lpe->nbytes = nbytes; | |
1004 | lpe->reloc = reloc; | |
1005 | /* Literal pool name defined ? */ | |
1006 | if (lp_sym == NULL) | |
1007 | { | |
07726851 | 1008 | sprintf (tmp_name, ".L\001%i", lp_count); |
98d3f06f | 1009 | lp_sym = symbol_make (tmp_name); |
07855bec | 1010 | } |
a85d7ed0 | 1011 | |
07855bec | 1012 | /* Make name for literal pool entry. */ |
07726851 | 1013 | sprintf (tmp_name, ".L\001%i\002%i", lp_count, lpe_count); |
07855bec | 1014 | lpe_count++; |
98d3f06f | 1015 | lpe->sym = symbol_make (tmp_name); |
07855bec NC |
1016 | |
1017 | /* Add to literal pool list. */ | |
1018 | lpe->next = NULL; | |
1019 | if (lpe_list_tail != NULL) | |
1020 | { | |
1021 | lpe_list_tail->next = lpe; | |
1022 | lpe_list_tail = lpe; | |
1023 | } | |
1024 | else | |
1025 | lpe_list = lpe_list_tail = lpe; | |
1026 | } | |
198ce79b | 1027 | |
a85d7ed0 NC |
1028 | /* Now change exp_p to the offset into the literal pool. |
1029 | Thats the expression: .L^Ax^By-.L^Ax */ | |
1030 | exp_p->X_add_symbol = lpe->sym; | |
1031 | exp_p->X_op_symbol = lp_sym; | |
1032 | exp_p->X_op = O_subtract; | |
1033 | exp_p->X_add_number = 0; | |
1034 | ||
1035 | *str_p = str; | |
1036 | ||
1037 | /* We change the suffix type to ELF_SUFFIX_NONE, because | |
1038 | the difference of two local labels is just a number. */ | |
1039 | return ELF_SUFFIX_NONE; | |
1040 | } | |
1041 | ||
1042 | /* Like normal .long/.short/.word, except support @got, etc. | |
1043 | clobbers input_line_pointer, checks end-of-line. */ | |
1044 | static void | |
1045 | s390_elf_cons (nbytes) | |
1046 | register int nbytes; /* 1=.byte, 2=.word, 4=.long */ | |
1047 | { | |
1048 | expressionS exp; | |
1049 | elf_suffix_type suffix; | |
1050 | ||
07855bec NC |
1051 | if (is_it_end_of_statement ()) |
1052 | { | |
1053 | demand_empty_rest_of_line (); | |
1054 | return; | |
1055 | } | |
a85d7ed0 | 1056 | |
07855bec NC |
1057 | do |
1058 | { | |
1059 | expression (&exp); | |
1060 | ||
1061 | if (exp.X_op == O_symbol | |
1062 | && *input_line_pointer == '@' | |
1063 | && (suffix = s390_elf_suffix (&input_line_pointer, &exp)) != ELF_SUFFIX_NONE) | |
1064 | { | |
1065 | bfd_reloc_code_real_type reloc; | |
1066 | reloc_howto_type *reloc_howto; | |
1067 | int size; | |
1068 | char *where; | |
1069 | ||
1971b29d MS |
1070 | if (nbytes == 2) |
1071 | { | |
1072 | static bfd_reloc_code_real_type tab2[] = | |
1073 | { | |
5cfbfc2b MS |
1074 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_NONE */ |
1075 | BFD_RELOC_390_GOT16, /* ELF_SUFFIX_GOT */ | |
1076 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_PLT */ | |
1077 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTENT */ | |
1078 | BFD_RELOC_16_GOTOFF, /* ELF_SUFFIX_GOTOFF */ | |
1079 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTPLT */ | |
1080 | BFD_RELOC_390_PLTOFF16, /* ELF_SUFFIX_PLTOFF */ | |
1081 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_GD */ | |
1082 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_GOTIE */ | |
1083 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_IE */ | |
1084 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_LDM */ | |
1085 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_LDO */ | |
1086 | BFD_RELOC_UNUSED /* ELF_SUFFIX_TLS_LE */ | |
1971b29d MS |
1087 | }; |
1088 | reloc = tab2[suffix]; | |
1089 | } | |
1090 | else if (nbytes == 4) | |
1091 | { | |
1092 | static bfd_reloc_code_real_type tab4[] = | |
1093 | { | |
5cfbfc2b MS |
1094 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_NONE */ |
1095 | BFD_RELOC_32_GOT_PCREL, /* ELF_SUFFIX_GOT */ | |
1096 | BFD_RELOC_390_PLT32, /* ELF_SUFFIX_PLT */ | |
1097 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTENT */ | |
1098 | BFD_RELOC_32_GOTOFF, /* ELF_SUFFIX_GOTOFF */ | |
1099 | BFD_RELOC_390_GOTPLT32, /* ELF_SUFFIX_GOTPLT */ | |
1100 | BFD_RELOC_390_PLTOFF32, /* ELF_SUFFIX_PLTOFF */ | |
1101 | BFD_RELOC_390_TLS_GD32, /* ELF_SUFFIX_TLS_GD */ | |
1102 | BFD_RELOC_390_TLS_GOTIE32, /* ELF_SUFFIX_TLS_GOTIE */ | |
1103 | BFD_RELOC_390_TLS_IE32, /* ELF_SUFFIX_TLS_IE */ | |
1104 | BFD_RELOC_390_TLS_LDM32, /* ELF_SUFFIX_TLS_LDM */ | |
1105 | BFD_RELOC_390_TLS_LDO32, /* ELF_SUFFIX_TLS_LDO */ | |
1106 | BFD_RELOC_390_TLS_LE32 /* ELF_SUFFIX_TLS_LE */ | |
1971b29d MS |
1107 | }; |
1108 | reloc = tab4[suffix]; | |
1109 | } | |
1110 | else if (nbytes == 8) | |
1111 | { | |
1112 | static bfd_reloc_code_real_type tab8[] = | |
1113 | { | |
5cfbfc2b MS |
1114 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_NONE */ |
1115 | BFD_RELOC_390_GOT64, /* ELF_SUFFIX_GOT */ | |
1116 | BFD_RELOC_390_PLT64, /* ELF_SUFFIX_PLT */ | |
1117 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTENT */ | |
1118 | BFD_RELOC_390_GOTOFF64, /* ELF_SUFFIX_GOTOFF */ | |
1119 | BFD_RELOC_390_GOTPLT64, /* ELF_SUFFIX_GOTPLT */ | |
1120 | BFD_RELOC_390_PLTOFF64, /* ELF_SUFFIX_PLTOFF */ | |
1121 | BFD_RELOC_390_TLS_GD64, /* ELF_SUFFIX_TLS_GD */ | |
1122 | BFD_RELOC_390_TLS_GOTIE64, /* ELF_SUFFIX_TLS_GOTIE */ | |
1123 | BFD_RELOC_390_TLS_IE64, /* ELF_SUFFIX_TLS_IE */ | |
1124 | BFD_RELOC_390_TLS_LDM64, /* ELF_SUFFIX_TLS_LDM */ | |
1125 | BFD_RELOC_390_TLS_LDO64, /* ELF_SUFFIX_TLS_LDO */ | |
1126 | BFD_RELOC_390_TLS_LE64 /* ELF_SUFFIX_TLS_LE */ | |
1971b29d MS |
1127 | }; |
1128 | reloc = tab8[suffix]; | |
1129 | } | |
07855bec NC |
1130 | else |
1131 | reloc = BFD_RELOC_UNUSED; | |
1132 | ||
1971b29d MS |
1133 | if (reloc != BFD_RELOC_UNUSED |
1134 | && (reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc))) | |
07855bec | 1135 | { |
07855bec NC |
1136 | size = bfd_get_reloc_size (reloc_howto); |
1137 | if (size > nbytes) | |
1138 | as_bad (_("%s relocations do not fit in %d bytes"), | |
1139 | reloc_howto->name, nbytes); | |
07726851 | 1140 | where = frag_more (nbytes); |
07855bec | 1141 | md_number_to_chars (where, 0, size); |
198ce79b | 1142 | /* To make fixup_segment do the pc relative conversion the |
b34976b6 | 1143 | pcrel parameter on the fix_new_exp call needs to be FALSE. */ |
198ce79b | 1144 | fix_new_exp (frag_now, where - frag_now->fr_literal, |
b34976b6 | 1145 | size, &exp, FALSE, reloc); |
07855bec NC |
1146 | } |
1147 | else | |
1148 | as_bad (_("relocation not applicable")); | |
1149 | } | |
a85d7ed0 | 1150 | else |
07855bec NC |
1151 | emit_expr (&exp, (unsigned int) nbytes); |
1152 | } | |
1153 | while (*input_line_pointer++ == ','); | |
a85d7ed0 | 1154 | |
98d3f06f | 1155 | input_line_pointer--; /* Put terminator back into stream. */ |
a85d7ed0 NC |
1156 | demand_empty_rest_of_line (); |
1157 | } | |
1158 | ||
1159 | /* We need to keep a list of fixups. We can't simply generate them as | |
1160 | we go, because that would require us to first create the frag, and | |
1161 | that would screw up references to ``.''. */ | |
1162 | ||
1163 | struct s390_fixup | |
07855bec NC |
1164 | { |
1165 | expressionS exp; | |
1166 | int opindex; | |
1167 | bfd_reloc_code_real_type reloc; | |
1168 | }; | |
a85d7ed0 NC |
1169 | |
1170 | #define MAX_INSN_FIXUPS (4) | |
1171 | ||
1172 | /* This routine is called for each instruction to be assembled. */ | |
1173 | ||
9d654c1c | 1174 | static char * |
a85d7ed0 NC |
1175 | md_gather_operands (str, insn, opcode) |
1176 | char *str; | |
1177 | unsigned char *insn; | |
1178 | const struct s390_opcode *opcode; | |
1179 | { | |
1180 | struct s390_fixup fixups[MAX_INSN_FIXUPS]; | |
1181 | const struct s390_operand *operand; | |
1182 | const unsigned char *opindex_ptr; | |
1971b29d | 1183 | expressionS ex; |
a85d7ed0 NC |
1184 | elf_suffix_type suffix; |
1185 | bfd_reloc_code_real_type reloc; | |
1186 | int skip_optional; | |
1187 | int parentheses; | |
1188 | char *f; | |
1189 | int fc, i; | |
1190 | ||
98d3f06f KH |
1191 | while (ISSPACE (*str)) |
1192 | str++; | |
a85d7ed0 NC |
1193 | |
1194 | parentheses = 0; | |
1195 | skip_optional = 0; | |
1196 | ||
1197 | /* Gather the operands. */ | |
1198 | fc = 0; | |
07855bec NC |
1199 | for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++) |
1200 | { | |
07855bec NC |
1201 | char *hold; |
1202 | ||
1203 | operand = s390_operands + *opindex_ptr; | |
198ce79b | 1204 | |
07855bec NC |
1205 | if (skip_optional && (operand->flags & S390_OPERAND_INDEX)) |
1206 | { | |
1207 | /* We do an early skip. For D(X,B) constructions the index | |
198ce79b | 1208 | register is skipped (X is optional). For D(L,B) the base |
07855bec NC |
1209 | register will be the skipped operand, because L is NOT |
1210 | optional. */ | |
1211 | skip_optional = 0; | |
1212 | continue; | |
1213 | } | |
198ce79b | 1214 | |
07855bec NC |
1215 | /* Gather the operand. */ |
1216 | hold = input_line_pointer; | |
1217 | input_line_pointer = str; | |
1218 | ||
98d3f06f KH |
1219 | /* Parse the operand. */ |
1220 | if (! register_name (&ex)) | |
07855bec | 1221 | expression (&ex); |
198ce79b | 1222 | |
07855bec NC |
1223 | str = input_line_pointer; |
1224 | input_line_pointer = hold; | |
198ce79b | 1225 | |
07855bec NC |
1226 | /* Write the operand to the insn. */ |
1227 | if (ex.X_op == O_illegal) | |
1228 | as_bad (_("illegal operand")); | |
1229 | else if (ex.X_op == O_absent) | |
1230 | as_bad (_("missing operand")); | |
1231 | else if (ex.X_op == O_register || ex.X_op == O_constant) | |
1232 | { | |
1233 | s390_lit_suffix (&str, &ex, ELF_SUFFIX_NONE); | |
1234 | ||
1235 | if (ex.X_op != O_register && ex.X_op != O_constant) | |
1236 | { | |
1237 | /* We need to generate a fixup for the | |
1238 | expression returned by s390_lit_suffix. */ | |
1239 | if (fc >= MAX_INSN_FIXUPS) | |
1240 | as_fatal (_("too many fixups")); | |
1241 | fixups[fc].exp = ex; | |
1242 | fixups[fc].opindex = *opindex_ptr; | |
1243 | fixups[fc].reloc = BFD_RELOC_UNUSED; | |
1244 | ++fc; | |
1245 | } | |
1246 | else | |
1247 | { | |
16a419ba NC |
1248 | if ((operand->flags & S390_OPERAND_INDEX) |
1249 | && ex.X_add_number == 0 | |
b34976b6 | 1250 | && warn_areg_zero) |
07726851 | 1251 | as_warn ("index register specified but zero"); |
16a419ba NC |
1252 | if ((operand->flags & S390_OPERAND_BASE) |
1253 | && ex.X_add_number == 0 | |
b34976b6 | 1254 | && warn_areg_zero) |
07726851 | 1255 | as_warn ("base register specified but zero"); |
07855bec NC |
1256 | s390_insert_operand (insn, operand, ex.X_add_number, NULL, 0); |
1257 | } | |
1258 | } | |
1259 | else | |
1260 | { | |
1261 | suffix = s390_elf_suffix (&str, &ex); | |
1262 | suffix = s390_lit_suffix (&str, &ex, suffix); | |
1263 | reloc = BFD_RELOC_UNUSED; | |
1264 | ||
1265 | if (suffix == ELF_SUFFIX_GOT) | |
1266 | { | |
933fbc29 MS |
1267 | if ((operand->flags & S390_OPERAND_DISP) && |
1268 | (operand->bits == 12)) | |
07855bec | 1269 | reloc = BFD_RELOC_390_GOT12; |
933fbc29 MS |
1270 | else if ((operand->flags & S390_OPERAND_DISP) && |
1271 | (operand->bits == 20)) | |
1272 | reloc = BFD_RELOC_390_GOT20; | |
16a419ba NC |
1273 | else if ((operand->flags & S390_OPERAND_SIGNED) |
1274 | && (operand->bits == 16)) | |
07855bec | 1275 | reloc = BFD_RELOC_390_GOT16; |
16a419ba NC |
1276 | else if ((operand->flags & S390_OPERAND_PCREL) |
1277 | && (operand->bits == 32)) | |
07855bec NC |
1278 | reloc = BFD_RELOC_390_GOTENT; |
1279 | } | |
1280 | else if (suffix == ELF_SUFFIX_PLT) | |
1281 | { | |
16a419ba NC |
1282 | if ((operand->flags & S390_OPERAND_PCREL) |
1283 | && (operand->bits == 16)) | |
07855bec | 1284 | reloc = BFD_RELOC_390_PLT16DBL; |
16a419ba NC |
1285 | else if ((operand->flags & S390_OPERAND_PCREL) |
1286 | && (operand->bits == 32)) | |
07855bec NC |
1287 | reloc = BFD_RELOC_390_PLT32DBL; |
1288 | } | |
1289 | else if (suffix == ELF_SUFFIX_GOTENT) | |
1290 | { | |
16a419ba NC |
1291 | if ((operand->flags & S390_OPERAND_PCREL) |
1292 | && (operand->bits == 32)) | |
07855bec NC |
1293 | reloc = BFD_RELOC_390_GOTENT; |
1294 | } | |
2a19f73f MS |
1295 | else if (suffix == ELF_SUFFIX_GOTOFF) |
1296 | { | |
1297 | if ((operand->flags & S390_OPERAND_SIGNED) | |
1298 | && (operand->bits == 16)) | |
1299 | reloc = BFD_RELOC_16_GOTOFF; | |
1300 | } | |
1301 | else if (suffix == ELF_SUFFIX_PLTOFF) | |
1302 | { | |
1303 | if ((operand->flags & S390_OPERAND_SIGNED) | |
1304 | && (operand->bits == 16)) | |
1305 | reloc = BFD_RELOC_390_PLTOFF16; | |
1306 | } | |
1307 | else if (suffix == ELF_SUFFIX_GOTPLT) | |
1308 | { | |
1309 | if ((operand->flags & S390_OPERAND_DISP) | |
1310 | && (operand->bits == 12)) | |
1311 | reloc = BFD_RELOC_390_GOTPLT12; | |
1312 | else if ((operand->flags & S390_OPERAND_SIGNED) | |
1313 | && (operand->bits == 16)) | |
1314 | reloc = BFD_RELOC_390_GOTPLT16; | |
1315 | else if ((operand->flags & S390_OPERAND_PCREL) | |
1316 | && (operand->bits == 32)) | |
1317 | reloc = BFD_RELOC_390_GOTPLTENT; | |
1318 | } | |
1971b29d MS |
1319 | else if (suffix == ELF_SUFFIX_TLS_GOTIE) |
1320 | { | |
1321 | if ((operand->flags & S390_OPERAND_DISP) | |
1322 | && (operand->bits == 12)) | |
1323 | reloc = BFD_RELOC_390_TLS_GOTIE12; | |
933fbc29 MS |
1324 | else if ((operand->flags & S390_OPERAND_DISP) |
1325 | && (operand->bits == 20)) | |
1326 | reloc = BFD_RELOC_390_TLS_GOTIE20; | |
1971b29d MS |
1327 | } |
1328 | else if (suffix == ELF_SUFFIX_TLS_IE) | |
1329 | { | |
1330 | if ((operand->flags & S390_OPERAND_PCREL) | |
1331 | && (operand->bits == 32)) | |
1332 | reloc = BFD_RELOC_390_TLS_IEENT; | |
1333 | } | |
07855bec NC |
1334 | |
1335 | if (suffix != ELF_SUFFIX_NONE && reloc == BFD_RELOC_UNUSED) | |
1336 | as_bad (_("invalid operand suffix")); | |
1337 | /* We need to generate a fixup of type 'reloc' for this | |
1338 | expression. */ | |
a85d7ed0 NC |
1339 | if (fc >= MAX_INSN_FIXUPS) |
1340 | as_fatal (_("too many fixups")); | |
1341 | fixups[fc].exp = ex; | |
1342 | fixups[fc].opindex = *opindex_ptr; | |
07855bec | 1343 | fixups[fc].reloc = reloc; |
a85d7ed0 | 1344 | ++fc; |
07855bec | 1345 | } |
198ce79b | 1346 | |
07855bec NC |
1347 | /* Check the next character. The call to expression has advanced |
1348 | str past any whitespace. */ | |
1349 | if (operand->flags & S390_OPERAND_DISP) | |
1350 | { | |
1351 | /* After a displacement a block in parentheses can start. */ | |
1352 | if (*str != '(') | |
1353 | { | |
1354 | /* Check if parethesed block can be skipped. If the next | |
1355 | operand is neiter an optional operand nor a base register | |
1356 | then we have a syntax error. */ | |
1357 | operand = s390_operands + *(++opindex_ptr); | |
1358 | if (!(operand->flags & (S390_OPERAND_INDEX|S390_OPERAND_BASE))) | |
1359 | as_bad (_("syntax error; missing '(' after displacement")); | |
1360 | ||
1361 | /* Ok, skip all operands until S390_OPERAND_BASE. */ | |
1362 | while (!(operand->flags & S390_OPERAND_BASE)) | |
1363 | operand = s390_operands + *(++opindex_ptr); | |
198ce79b | 1364 | |
07855bec NC |
1365 | /* If there is a next operand it must be seperated by a comma. */ |
1366 | if (opindex_ptr[1] != '\0') | |
1367 | { | |
1368 | if (*str++ != ',') | |
07726851 | 1369 | as_bad (_("syntax error; expected ,")); |
07855bec NC |
1370 | } |
1371 | } | |
1372 | else | |
1373 | { | |
1374 | /* We found an opening parentheses. */ | |
1375 | str++; | |
1376 | for (f = str; *f != '\0'; f++) | |
1377 | if (*f == ',' || *f == ')') | |
1378 | break; | |
1379 | /* If there is no comma until the closing parentheses OR | |
1380 | there is a comma right after the opening parentheses, | |
1381 | we have to skip optional operands. */ | |
1382 | if (*f == ',' && f == str) | |
1383 | { | |
1384 | /* comma directly after '(' ? */ | |
1385 | skip_optional = 1; | |
1386 | str++; | |
1387 | } | |
1388 | else | |
1389 | skip_optional = (*f != ','); | |
1390 | } | |
1391 | } | |
1392 | else if (operand->flags & S390_OPERAND_BASE) | |
1393 | { | |
1394 | /* After the base register the parenthesed block ends. */ | |
1395 | if (*str++ != ')') | |
1396 | as_bad (_("syntax error; missing ')' after base register")); | |
1397 | skip_optional = 0; | |
1398 | /* If there is a next operand it must be seperated by a comma. */ | |
1399 | if (opindex_ptr[1] != '\0') | |
1400 | { | |
1401 | if (*str++ != ',') | |
1402 | as_bad (_("syntax error; expected ,")); | |
1403 | } | |
1404 | } | |
1405 | else | |
1406 | { | |
1407 | /* We can find an 'early' closing parentheses in e.g. D(L) instead | |
1408 | of D(L,B). In this case the base register has to be skipped. */ | |
1409 | if (*str == ')') | |
1410 | { | |
1411 | operand = s390_operands + *(++opindex_ptr); | |
1412 | ||
1413 | if (!(operand->flags & S390_OPERAND_BASE)) | |
1414 | as_bad (_("syntax error; ')' not allowed here")); | |
1415 | str++; | |
1416 | } | |
1417 | /* If there is a next operand it must be seperated by a comma. */ | |
1418 | if (opindex_ptr[1] != '\0') | |
1419 | { | |
1420 | if (*str++ != ',') | |
07726851 | 1421 | as_bad (_("syntax error; expected ,")); |
07855bec | 1422 | } |
a85d7ed0 | 1423 | } |
a85d7ed0 | 1424 | } |
a85d7ed0 | 1425 | |
3882b010 | 1426 | while (ISSPACE (*str)) |
a85d7ed0 NC |
1427 | ++str; |
1428 | ||
1971b29d MS |
1429 | /* Check for tls instruction marker. */ |
1430 | reloc = s390_tls_suffix (&str, &ex); | |
1431 | if (reloc != BFD_RELOC_UNUSED) | |
1432 | { | |
1433 | /* We need to generate a fixup of type 'reloc' for this | |
1434 | instruction. */ | |
1435 | if (fc >= MAX_INSN_FIXUPS) | |
1436 | as_fatal (_("too many fixups")); | |
1437 | fixups[fc].exp = ex; | |
1438 | fixups[fc].opindex = -1; | |
1439 | fixups[fc].reloc = reloc; | |
1440 | ++fc; | |
1441 | } | |
1442 | ||
07855bec NC |
1443 | if (*str != '\0') |
1444 | { | |
1445 | char *linefeed; | |
a85d7ed0 | 1446 | |
07726851 | 1447 | if ((linefeed = strchr (str, '\n')) != NULL) |
07855bec NC |
1448 | *linefeed = '\0'; |
1449 | as_bad (_("junk at end of line: `%s'"), str); | |
1450 | if (linefeed != NULL) | |
1451 | *linefeed = '\n'; | |
1452 | } | |
a85d7ed0 NC |
1453 | |
1454 | /* Write out the instruction. */ | |
1455 | f = frag_more (opcode->oplen); | |
07855bec | 1456 | memcpy (f, insn, opcode->oplen); |
8f5b2891 | 1457 | dwarf2_emit_insn (opcode->oplen); |
a85d7ed0 NC |
1458 | |
1459 | /* Create any fixups. At this point we do not use a | |
1460 | bfd_reloc_code_real_type, but instead just use the | |
1461 | BFD_RELOC_UNUSED plus the operand index. This lets us easily | |
1462 | handle fixups for any operand type, although that is admittedly | |
1463 | not a very exciting feature. We pick a BFD reloc type in | |
1464 | md_apply_fix3. */ | |
07855bec NC |
1465 | for (i = 0; i < fc; i++) |
1466 | { | |
1971b29d MS |
1467 | |
1468 | if (fixups[i].opindex < 0) | |
1469 | { | |
1470 | /* Create tls instruction marker relocation. */ | |
1471 | fix_new_exp (frag_now, f - frag_now->fr_literal, opcode->oplen, | |
1472 | &fixups[i].exp, 0, fixups[i].reloc); | |
1473 | continue; | |
1474 | } | |
1475 | ||
07855bec | 1476 | operand = s390_operands + fixups[i].opindex; |
a85d7ed0 | 1477 | |
07855bec NC |
1478 | if (fixups[i].reloc != BFD_RELOC_UNUSED) |
1479 | { | |
1480 | reloc_howto_type *reloc_howto; | |
1481 | fixS *fixP; | |
1482 | int size; | |
198ce79b | 1483 | |
07855bec NC |
1484 | reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc); |
1485 | if (!reloc_howto) | |
1486 | abort (); | |
198ce79b | 1487 | |
07855bec NC |
1488 | size = bfd_get_reloc_size (reloc_howto); |
1489 | ||
1490 | if (size < 1 || size > 4) | |
1491 | abort (); | |
198ce79b AJ |
1492 | |
1493 | fixP = fix_new_exp (frag_now, | |
1494 | f - frag_now->fr_literal + (operand->shift/8), | |
07855bec NC |
1495 | size, &fixups[i].exp, reloc_howto->pc_relative, |
1496 | fixups[i].reloc); | |
1497 | /* Turn off overflow checking in fixup_segment. This is necessary | |
1498 | because fixup_segment will signal an overflow for large 4 byte | |
1499 | quantities for GOT12 relocations. */ | |
16a419ba | 1500 | if ( fixups[i].reloc == BFD_RELOC_390_GOT12 |
933fbc29 | 1501 | || fixups[i].reloc == BFD_RELOC_390_GOT20 |
16a419ba | 1502 | || fixups[i].reloc == BFD_RELOC_390_GOT16) |
07855bec NC |
1503 | fixP->fx_no_overflow = 1; |
1504 | } | |
1505 | else | |
1506 | fix_new_exp (frag_now, f - frag_now->fr_literal, 4, &fixups[i].exp, | |
1507 | (operand->flags & S390_OPERAND_PCREL) != 0, | |
1508 | ((bfd_reloc_code_real_type) | |
1509 | (fixups[i].opindex + (int) BFD_RELOC_UNUSED))); | |
1510 | } | |
a85d7ed0 NC |
1511 | return str; |
1512 | } | |
1513 | ||
1514 | /* This routine is called for each instruction to be assembled. */ | |
1515 | ||
1516 | void | |
1517 | md_assemble (str) | |
1518 | char *str; | |
1519 | { | |
1520 | const struct s390_opcode *opcode; | |
1521 | unsigned char insn[6]; | |
1522 | char *s; | |
1523 | ||
1524 | /* Get the opcode. */ | |
3882b010 | 1525 | for (s = str; *s != '\0' && ! ISSPACE (*s); s++) |
a85d7ed0 NC |
1526 | ; |
1527 | if (*s != '\0') | |
1528 | *s++ = '\0'; | |
1529 | ||
1530 | /* Look up the opcode in the hash table. */ | |
1531 | opcode = (struct s390_opcode *) hash_find (s390_opcode_hash, str); | |
07855bec NC |
1532 | if (opcode == (const struct s390_opcode *) NULL) |
1533 | { | |
1534 | as_bad (_("Unrecognized opcode: `%s'"), str); | |
1535 | return; | |
1536 | } | |
37a58793 MS |
1537 | else if (!(opcode->modes & current_mode_mask)) |
1538 | { | |
1539 | as_bad ("Opcode %s not available in this mode", str); | |
1540 | return; | |
1541 | } | |
07726851 | 1542 | memcpy (insn, opcode->opcode, sizeof (insn)); |
07855bec | 1543 | md_gather_operands (s, insn, opcode); |
a85d7ed0 NC |
1544 | } |
1545 | ||
1546 | #ifndef WORKING_DOT_WORD | |
1547 | /* Handle long and short jumps. We don't support these */ | |
1548 | void | |
1549 | md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
1550 | char *ptr; | |
1551 | addressT from_addr, to_addr; | |
1552 | fragS *frag; | |
1553 | symbolS *to_symbol; | |
1554 | { | |
1555 | abort (); | |
1556 | } | |
1557 | ||
1558 | void | |
1559 | md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
1560 | char *ptr; | |
1561 | addressT from_addr, to_addr; | |
1562 | fragS *frag; | |
1563 | symbolS *to_symbol; | |
1564 | { | |
1565 | abort (); | |
1566 | } | |
1567 | #endif | |
1568 | ||
1569 | void | |
1570 | s390_bss (ignore) | |
1571 | int ignore ATTRIBUTE_UNUSED; | |
1572 | { | |
1573 | /* We don't support putting frags in the BSS segment, we fake it | |
1574 | by marking in_bss, then looking at s_skip for clues. */ | |
1575 | ||
1576 | subseg_set (bss_section, 0); | |
1577 | demand_empty_rest_of_line (); | |
1578 | } | |
1579 | ||
1580 | /* Pseudo-op handling. */ | |
1581 | ||
1582 | void | |
07726851 | 1583 | s390_insn (ignore) |
a85d7ed0 NC |
1584 | int ignore ATTRIBUTE_UNUSED; |
1585 | { | |
1586 | expressionS exp; | |
1587 | const struct s390_opcode *opformat; | |
1588 | unsigned char insn[6]; | |
1589 | char *s; | |
1590 | ||
1591 | /* Get the opcode format. */ | |
1592 | s = input_line_pointer; | |
3882b010 | 1593 | while (*s != '\0' && *s != ',' && ! ISSPACE (*s)) |
a85d7ed0 NC |
1594 | s++; |
1595 | if (*s != ',') | |
1596 | as_bad (_("Invalid .insn format\n")); | |
1597 | *s++ = '\0'; | |
1598 | ||
1599 | /* Look up the opcode in the hash table. */ | |
1600 | opformat = (struct s390_opcode *) | |
1601 | hash_find (s390_opformat_hash, input_line_pointer); | |
07855bec NC |
1602 | if (opformat == (const struct s390_opcode *) NULL) |
1603 | { | |
1604 | as_bad (_("Unrecognized opcode format: `%s'"), input_line_pointer); | |
1605 | return; | |
1606 | } | |
a85d7ed0 NC |
1607 | input_line_pointer = s; |
1608 | expression (&exp); | |
07855bec NC |
1609 | if (exp.X_op == O_constant) |
1610 | { | |
a161fe53 AM |
1611 | if ( (opformat->oplen == 6 && exp.X_op > 0 && exp.X_op < (1ULL << 48)) |
1612 | || (opformat->oplen == 4 && exp.X_op > 0 && exp.X_op < (1ULL << 32)) | |
1613 | || (opformat->oplen == 2 && exp.X_op > 0 && exp.X_op < (1ULL << 16))) | |
07855bec NC |
1614 | md_number_to_chars (insn, exp.X_add_number, opformat->oplen); |
1615 | else | |
07726851 | 1616 | as_bad (_("Invalid .insn format\n")); |
07855bec NC |
1617 | } |
1618 | else if (exp.X_op == O_big) | |
1619 | { | |
16a419ba NC |
1620 | if (exp.X_add_number > 0 |
1621 | && opformat->oplen == 6 | |
1622 | && generic_bignum[3] == 0) | |
07855bec NC |
1623 | { |
1624 | md_number_to_chars (insn, generic_bignum[2], 2); | |
1625 | md_number_to_chars (&insn[2], generic_bignum[1], 2); | |
1626 | md_number_to_chars (&insn[4], generic_bignum[0], 2); | |
1627 | } | |
1628 | else | |
07726851 | 1629 | as_bad (_("Invalid .insn format\n")); |
07855bec NC |
1630 | } |
1631 | else | |
a85d7ed0 | 1632 | as_bad (_("second operand of .insn not a constant\n")); |
a85d7ed0 | 1633 | |
b6849f55 NC |
1634 | if (strcmp (opformat->name, "e") != 0 && *input_line_pointer++ != ',') |
1635 | as_bad (_("missing comma after insn constant\n")); | |
98d3f06f | 1636 | |
07726851 | 1637 | if ((s = strchr (input_line_pointer, '\n')) != NULL) |
a85d7ed0 | 1638 | *s = '\0'; |
b6849f55 NC |
1639 | input_line_pointer = md_gather_operands (input_line_pointer, insn, |
1640 | opformat); | |
a85d7ed0 NC |
1641 | if (s != NULL) |
1642 | *s = '\n'; | |
1643 | demand_empty_rest_of_line (); | |
1644 | } | |
1645 | ||
1646 | /* The .byte pseudo-op. This is similar to the normal .byte | |
1647 | pseudo-op, but it can also take a single ASCII string. */ | |
1648 | ||
1649 | static void | |
1650 | s390_byte (ignore) | |
1651 | int ignore ATTRIBUTE_UNUSED; | |
1652 | { | |
1653 | if (*input_line_pointer != '\"') | |
1654 | { | |
1655 | cons (1); | |
1656 | return; | |
1657 | } | |
1658 | ||
1659 | /* Gather characters. A real double quote is doubled. Unusual | |
1660 | characters are not permitted. */ | |
1661 | ++input_line_pointer; | |
1662 | while (1) | |
1663 | { | |
1664 | char c; | |
1665 | ||
1666 | c = *input_line_pointer++; | |
1667 | ||
1668 | if (c == '\"') | |
1669 | { | |
1670 | if (*input_line_pointer != '\"') | |
1671 | break; | |
1672 | ++input_line_pointer; | |
1673 | } | |
1674 | ||
1675 | FRAG_APPEND_1_CHAR (c); | |
1676 | } | |
1677 | ||
1678 | demand_empty_rest_of_line (); | |
1679 | } | |
1680 | ||
1681 | /* The .ltorg pseudo-op.This emits all literals defined since the last | |
198ce79b | 1682 | .ltorg or the invocation of gas. Literals are defined with the |
a85d7ed0 NC |
1683 | @lit suffix. */ |
1684 | ||
1685 | static void | |
1686 | s390_literals (ignore) | |
1687 | int ignore ATTRIBUTE_UNUSED; | |
1688 | { | |
1689 | struct s390_lpe *lpe; | |
1690 | ||
1691 | if (lp_sym == NULL || lpe_count == 0) | |
98d3f06f | 1692 | return; /* Nothing to be done. */ |
a85d7ed0 NC |
1693 | |
1694 | /* Emit symbol for start of literal pool. */ | |
1695 | S_SET_SEGMENT (lp_sym, now_seg); | |
1696 | S_SET_VALUE (lp_sym, (valueT) frag_now_fix ()); | |
1697 | lp_sym->sy_frag = frag_now; | |
1698 | ||
07855bec NC |
1699 | while (lpe_list) |
1700 | { | |
1701 | lpe = lpe_list; | |
1702 | lpe_list = lpe_list->next; | |
1703 | S_SET_SEGMENT (lpe->sym, now_seg); | |
1704 | S_SET_VALUE (lpe->sym, (valueT) frag_now_fix ()); | |
1705 | lpe->sym->sy_frag = frag_now; | |
1706 | ||
1707 | /* Emit literal pool entry. */ | |
1708 | if (lpe->reloc != BFD_RELOC_UNUSED) | |
1709 | { | |
198ce79b | 1710 | reloc_howto_type *reloc_howto = |
07855bec NC |
1711 | bfd_reloc_type_lookup (stdoutput, lpe->reloc); |
1712 | int size = bfd_get_reloc_size (reloc_howto); | |
1713 | char *where; | |
1714 | ||
1715 | if (size > lpe->nbytes) | |
1716 | as_bad (_("%s relocations do not fit in %d bytes"), | |
1717 | reloc_howto->name, lpe->nbytes); | |
07726851 | 1718 | where = frag_more (lpe->nbytes); |
07855bec NC |
1719 | md_number_to_chars (where, 0, size); |
1720 | fix_new_exp (frag_now, where - frag_now->fr_literal, | |
1721 | size, &lpe->ex, reloc_howto->pc_relative, lpe->reloc); | |
1722 | } | |
1723 | else | |
1724 | { | |
1725 | if (lpe->ex.X_op == O_big) | |
1726 | { | |
1727 | if (lpe->ex.X_add_number <= 0) | |
1728 | generic_floating_point_number = lpe->floatnum; | |
1729 | else | |
1730 | memcpy (generic_bignum, lpe->bignum, | |
98d3f06f | 1731 | lpe->ex.X_add_number * sizeof (LITTLENUM_TYPE)); |
07855bec NC |
1732 | } |
1733 | emit_expr (&lpe->ex, lpe->nbytes); | |
1734 | } | |
a85d7ed0 | 1735 | |
07855bec NC |
1736 | lpe->next = lpe_free_list; |
1737 | lpe_free_list = lpe; | |
1738 | } | |
a85d7ed0 NC |
1739 | lpe_list_tail = NULL; |
1740 | lp_sym = NULL; | |
1741 | lp_count++; | |
1742 | lpe_count = 0; | |
1743 | } | |
1744 | ||
1745 | /* Turn a string in input_line_pointer into a floating point constant | |
1746 | of type type, and store the appropriate bytes in *litp. The number | |
1747 | of LITTLENUMS emitted is stored in *sizep . An error message is | |
1748 | returned, or NULL on OK. */ | |
1749 | ||
1750 | char * | |
1751 | md_atof (type, litp, sizep) | |
1752 | int type; | |
1753 | char *litp; | |
1754 | int *sizep; | |
1755 | { | |
1756 | int prec; | |
1757 | LITTLENUM_TYPE words[4]; | |
1758 | char *t; | |
1759 | int i; | |
1760 | ||
1761 | switch (type) | |
1762 | { | |
1763 | case 'f': | |
1764 | prec = 2; | |
1765 | break; | |
1766 | ||
1767 | case 'd': | |
1768 | prec = 4; | |
1769 | break; | |
1770 | ||
1771 | default: | |
1772 | *sizep = 0; | |
1773 | return "bad call to md_atof"; | |
1774 | } | |
1775 | ||
1776 | t = atof_ieee (input_line_pointer, type, words); | |
1777 | if (t) | |
1778 | input_line_pointer = t; | |
1779 | ||
1780 | *sizep = prec * 2; | |
1781 | ||
1782 | for (i = 0; i < prec; i++) | |
1783 | { | |
1784 | md_number_to_chars (litp, (valueT) words[i], 2); | |
1785 | litp += 2; | |
1786 | } | |
198ce79b | 1787 | |
a85d7ed0 NC |
1788 | return NULL; |
1789 | } | |
1790 | ||
1791 | /* Align a section (I don't know why this is machine dependent). */ | |
1792 | ||
1793 | valueT | |
1794 | md_section_align (seg, addr) | |
1795 | asection *seg; | |
1796 | valueT addr; | |
1797 | { | |
1798 | int align = bfd_get_section_alignment (stdoutput, seg); | |
1799 | ||
1800 | return ((addr + (1 << align) - 1) & (-1 << align)); | |
1801 | } | |
1802 | ||
1803 | /* We don't have any form of relaxing. */ | |
1804 | ||
1805 | int | |
1806 | md_estimate_size_before_relax (fragp, seg) | |
1807 | fragS *fragp ATTRIBUTE_UNUSED; | |
1808 | asection *seg ATTRIBUTE_UNUSED; | |
1809 | { | |
1810 | abort (); | |
1811 | return 0; | |
1812 | } | |
1813 | ||
1814 | /* Convert a machine dependent frag. We never generate these. */ | |
1815 | ||
1816 | void | |
1817 | md_convert_frag (abfd, sec, fragp) | |
1818 | bfd *abfd ATTRIBUTE_UNUSED; | |
1819 | asection *sec ATTRIBUTE_UNUSED; | |
1820 | fragS *fragp ATTRIBUTE_UNUSED; | |
1821 | { | |
1822 | abort (); | |
1823 | } | |
1824 | ||
1825 | symbolS * | |
1826 | md_undefined_symbol (name) | |
1827 | char *name; | |
1828 | { | |
98d3f06f | 1829 | if (*name == '_' && *(name + 1) == 'G' |
07726851 | 1830 | && strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0) |
98d3f06f KH |
1831 | { |
1832 | if (!GOT_symbol) | |
1833 | { | |
1834 | if (symbol_find (name)) | |
1835 | as_bad (_("GOT already in symbol table")); | |
1836 | GOT_symbol = symbol_new (name, undefined_section, | |
1837 | (valueT) 0, &zero_address_frag); | |
1838 | } | |
1839 | return GOT_symbol; | |
1840 | } | |
a85d7ed0 NC |
1841 | return 0; |
1842 | } | |
1843 | ||
1844 | /* Functions concerning relocs. */ | |
1845 | ||
1846 | /* The location from which a PC relative jump should be calculated, | |
1847 | given a PC relative reloc. */ | |
1848 | ||
1849 | long | |
1850 | md_pcrel_from_section (fixp, sec) | |
1851 | fixS *fixp; | |
1852 | segT sec ATTRIBUTE_UNUSED; | |
1853 | { | |
1854 | return fixp->fx_frag->fr_address + fixp->fx_where; | |
1855 | } | |
1856 | ||
1857 | /* Here we decide which fixups can be adjusted to make them relative to | |
1858 | the beginning of the section instead of the symbol. Basically we need | |
1859 | to make sure that the dynamic relocations are done correctly, so in | |
1860 | some cases we force the original symbol to be used. */ | |
1861 | int | |
98d3f06f KH |
1862 | tc_s390_fix_adjustable (fixP) |
1863 | fixS *fixP; | |
a85d7ed0 | 1864 | { |
0a00dd48 MS |
1865 | /* Don't adjust references to merge sections. */ |
1866 | if ((S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_MERGE) != 0) | |
1867 | return 0; | |
a85d7ed0 | 1868 | /* adjust_reloc_syms doesn't know about the GOT. */ |
2a19f73f MS |
1869 | if ( fixP->fx_r_type == BFD_RELOC_16_GOTOFF |
1870 | || fixP->fx_r_type == BFD_RELOC_32_GOTOFF | |
1871 | || fixP->fx_r_type == BFD_RELOC_390_GOTOFF64 | |
1872 | || fixP->fx_r_type == BFD_RELOC_390_PLTOFF16 | |
1873 | || fixP->fx_r_type == BFD_RELOC_390_PLTOFF32 | |
1874 | || fixP->fx_r_type == BFD_RELOC_390_PLTOFF64 | |
a85d7ed0 NC |
1875 | || fixP->fx_r_type == BFD_RELOC_390_PLT16DBL |
1876 | || fixP->fx_r_type == BFD_RELOC_390_PLT32 | |
1877 | || fixP->fx_r_type == BFD_RELOC_390_PLT32DBL | |
1878 | || fixP->fx_r_type == BFD_RELOC_390_PLT64 | |
1879 | || fixP->fx_r_type == BFD_RELOC_390_GOT12 | |
933fbc29 | 1880 | || fixP->fx_r_type == BFD_RELOC_390_GOT20 |
a85d7ed0 NC |
1881 | || fixP->fx_r_type == BFD_RELOC_390_GOT16 |
1882 | || fixP->fx_r_type == BFD_RELOC_32_GOT_PCREL | |
1883 | || fixP->fx_r_type == BFD_RELOC_390_GOT64 | |
07855bec | 1884 | || fixP->fx_r_type == BFD_RELOC_390_GOTENT |
2a19f73f MS |
1885 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT12 |
1886 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT16 | |
933fbc29 | 1887 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT20 |
2a19f73f MS |
1888 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT32 |
1889 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT64 | |
1890 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLTENT | |
1971b29d MS |
1891 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LOAD |
1892 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GDCALL | |
1893 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDCALL | |
1894 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GD32 | |
1895 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GD64 | |
1896 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE12 | |
933fbc29 | 1897 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE20 |
1971b29d MS |
1898 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE32 |
1899 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE64 | |
1900 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDM32 | |
1901 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDM64 | |
1902 | || fixP->fx_r_type == BFD_RELOC_390_TLS_IE32 | |
1903 | || fixP->fx_r_type == BFD_RELOC_390_TLS_IE64 | |
1904 | || fixP->fx_r_type == BFD_RELOC_390_TLS_IEENT | |
1905 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LE32 | |
1906 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LE64 | |
1907 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDO32 | |
1908 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDO64 | |
1909 | || fixP->fx_r_type == BFD_RELOC_390_TLS_DTPMOD | |
1910 | || fixP->fx_r_type == BFD_RELOC_390_TLS_DTPOFF | |
1911 | || fixP->fx_r_type == BFD_RELOC_390_TLS_TPOFF | |
a85d7ed0 NC |
1912 | || fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT |
1913 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
1914 | return 0; | |
1915 | return 1; | |
1916 | } | |
1917 | ||
b8edc45c | 1918 | /* Return true if we must always emit a reloc for a type and false if |
c03099e6 | 1919 | there is some hope of resolving it at assembly time. */ |
b8edc45c MS |
1920 | int |
1921 | tc_s390_force_relocation (fixp) | |
1922 | struct fix *fixp; | |
1923 | { | |
1924 | /* Ensure we emit a relocation for every reference to the global | |
1925 | offset table or to the procedure link table. */ | |
1926 | switch (fixp->fx_r_type) | |
1927 | { | |
1928 | case BFD_RELOC_390_GOT12: | |
933fbc29 | 1929 | case BFD_RELOC_390_GOT20: |
b8edc45c MS |
1930 | case BFD_RELOC_32_GOT_PCREL: |
1931 | case BFD_RELOC_32_GOTOFF: | |
2a19f73f MS |
1932 | case BFD_RELOC_390_GOTOFF64: |
1933 | case BFD_RELOC_390_PLTOFF16: | |
1934 | case BFD_RELOC_390_PLTOFF32: | |
1935 | case BFD_RELOC_390_PLTOFF64: | |
b8edc45c MS |
1936 | case BFD_RELOC_390_GOTPC: |
1937 | case BFD_RELOC_390_GOT16: | |
1938 | case BFD_RELOC_390_GOTPCDBL: | |
1939 | case BFD_RELOC_390_GOT64: | |
1940 | case BFD_RELOC_390_GOTENT: | |
1941 | case BFD_RELOC_390_PLT32: | |
1942 | case BFD_RELOC_390_PLT16DBL: | |
1943 | case BFD_RELOC_390_PLT32DBL: | |
1944 | case BFD_RELOC_390_PLT64: | |
2a19f73f MS |
1945 | case BFD_RELOC_390_GOTPLT12: |
1946 | case BFD_RELOC_390_GOTPLT16: | |
933fbc29 | 1947 | case BFD_RELOC_390_GOTPLT20: |
2a19f73f MS |
1948 | case BFD_RELOC_390_GOTPLT32: |
1949 | case BFD_RELOC_390_GOTPLT64: | |
1950 | case BFD_RELOC_390_GOTPLTENT: | |
b8edc45c MS |
1951 | return 1; |
1952 | default: | |
a161fe53 | 1953 | break;; |
b8edc45c | 1954 | } |
a161fe53 | 1955 | |
ae6063d4 | 1956 | return generic_force_reloc (fixp); |
b8edc45c MS |
1957 | } |
1958 | ||
a85d7ed0 NC |
1959 | /* Apply a fixup to the object code. This is called for all the |
1960 | fixups we generated by the call to fix_new_exp, above. In the call | |
1961 | above we used a reloc code which was the largest legal reloc code | |
1962 | plus the operand index. Here we undo that to recover the operand | |
1963 | index. At this point all symbol values should be fully resolved, | |
1964 | and we attempt to completely resolve the reloc. If we can not do | |
1965 | that, we determine the correct reloc code and put it back in the | |
1966 | fixup. */ | |
1967 | ||
94f592af NC |
1968 | void |
1969 | md_apply_fix3 (fixP, valP, seg) | |
1970 | fixS *fixP; | |
1971 | valueT *valP; | |
a161fe53 | 1972 | segT seg ATTRIBUTE_UNUSED; |
a85d7ed0 NC |
1973 | { |
1974 | char *where; | |
98d3f06f | 1975 | valueT value = *valP; |
a85d7ed0 | 1976 | |
94f592af | 1977 | where = fixP->fx_frag->fr_literal + fixP->fx_where; |
a85d7ed0 | 1978 | |
98d3f06f | 1979 | if (fixP->fx_subsy != NULL) |
f1fc51da MS |
1980 | as_bad_where (fixP->fx_file, fixP->fx_line, |
1981 | "cannot emit relocation %s against subsy symbol %s", | |
1982 | bfd_get_reloc_code_name (fixP->fx_r_type), | |
1983 | S_GET_NAME (fixP->fx_subsy)); | |
98d3f06f KH |
1984 | |
1985 | if (fixP->fx_addsy != NULL) | |
07855bec | 1986 | { |
94f592af NC |
1987 | if (fixP->fx_pcrel) |
1988 | value += fixP->fx_frag->fr_address + fixP->fx_where; | |
07855bec NC |
1989 | } |
1990 | else | |
94f592af | 1991 | fixP->fx_done = 1; |
a85d7ed0 | 1992 | |
94f592af | 1993 | if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED) |
07855bec NC |
1994 | { |
1995 | const struct s390_operand *operand; | |
1996 | int opindex; | |
198ce79b | 1997 | |
94f592af | 1998 | opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED; |
07855bec | 1999 | operand = &s390_operands[opindex]; |
198ce79b | 2000 | |
94f592af | 2001 | if (fixP->fx_done) |
07855bec NC |
2002 | { |
2003 | /* Insert the fully resolved operand value. */ | |
2004 | s390_insert_operand (where, operand, (offsetT) value, | |
94f592af NC |
2005 | fixP->fx_file, fixP->fx_line); |
2006 | return; | |
07855bec | 2007 | } |
198ce79b | 2008 | |
07855bec NC |
2009 | /* Determine a BFD reloc value based on the operand information. |
2010 | We are only prepared to turn a few of the operands into | |
2011 | relocs. */ | |
94f592af | 2012 | fixP->fx_offset = value; |
07855bec NC |
2013 | if (operand->bits == 12 && operand->shift == 20) |
2014 | { | |
94f592af NC |
2015 | fixP->fx_size = 2; |
2016 | fixP->fx_where += 2; | |
2017 | fixP->fx_r_type = BFD_RELOC_390_12; | |
07855bec NC |
2018 | } |
2019 | else if (operand->bits == 12 && operand->shift == 36) | |
2020 | { | |
94f592af NC |
2021 | fixP->fx_size = 2; |
2022 | fixP->fx_where += 4; | |
2023 | fixP->fx_r_type = BFD_RELOC_390_12; | |
07855bec | 2024 | } |
933fbc29 MS |
2025 | else if (operand->bits == 20 && operand->shift == 20) |
2026 | { | |
2027 | fixP->fx_size = 2; | |
2028 | fixP->fx_where += 2; | |
2029 | fixP->fx_r_type = BFD_RELOC_390_20; | |
2030 | } | |
07855bec NC |
2031 | else if (operand->bits == 8 && operand->shift == 8) |
2032 | { | |
94f592af NC |
2033 | fixP->fx_size = 1; |
2034 | fixP->fx_where += 1; | |
2035 | fixP->fx_r_type = BFD_RELOC_8; | |
07855bec NC |
2036 | } |
2037 | else if (operand->bits == 16 && operand->shift == 16) | |
2038 | { | |
94f592af NC |
2039 | fixP->fx_size = 2; |
2040 | fixP->fx_where += 2; | |
07855bec NC |
2041 | if (operand->flags & S390_OPERAND_PCREL) |
2042 | { | |
94f592af NC |
2043 | fixP->fx_r_type = BFD_RELOC_390_PC16DBL; |
2044 | fixP->fx_offset += 2; | |
07855bec NC |
2045 | } |
2046 | else | |
94f592af | 2047 | fixP->fx_r_type = BFD_RELOC_16; |
07855bec | 2048 | } |
16a419ba NC |
2049 | else if (operand->bits == 32 && operand->shift == 16 |
2050 | && (operand->flags & S390_OPERAND_PCREL)) | |
07855bec | 2051 | { |
94f592af NC |
2052 | fixP->fx_size = 4; |
2053 | fixP->fx_where += 2; | |
2054 | fixP->fx_offset += 2; | |
2055 | fixP->fx_r_type = BFD_RELOC_390_PC32DBL; | |
07855bec | 2056 | } |
a85d7ed0 | 2057 | else |
07855bec NC |
2058 | { |
2059 | char *sfile; | |
2060 | unsigned int sline; | |
198ce79b | 2061 | |
07855bec NC |
2062 | /* Use expr_symbol_where to see if this is an expression |
2063 | symbol. */ | |
94f592af NC |
2064 | if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline)) |
2065 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
07855bec NC |
2066 | _("unresolved expression that must be resolved")); |
2067 | else | |
94f592af | 2068 | as_bad_where (fixP->fx_file, fixP->fx_line, |
07855bec | 2069 | _("unsupported relocation type")); |
94f592af NC |
2070 | fixP->fx_done = 1; |
2071 | return; | |
07855bec | 2072 | } |
a85d7ed0 | 2073 | } |
07855bec NC |
2074 | else |
2075 | { | |
94f592af | 2076 | switch (fixP->fx_r_type) |
07855bec NC |
2077 | { |
2078 | case BFD_RELOC_8: | |
94f592af | 2079 | if (fixP->fx_pcrel) |
07855bec | 2080 | abort (); |
94f592af | 2081 | if (fixP->fx_done) |
07855bec NC |
2082 | md_number_to_chars (where, value, 1); |
2083 | break; | |
2084 | case BFD_RELOC_390_12: | |
2085 | case BFD_RELOC_390_GOT12: | |
2a19f73f | 2086 | case BFD_RELOC_390_GOTPLT12: |
94f592af | 2087 | if (fixP->fx_done) |
07855bec NC |
2088 | { |
2089 | unsigned short mop; | |
2090 | ||
2091 | mop = bfd_getb16 ((unsigned char *) where); | |
2092 | mop |= (unsigned short) (value & 0xfff); | |
2093 | bfd_putb16 ((bfd_vma) mop, (unsigned char *) where); | |
198ce79b | 2094 | } |
07855bec | 2095 | break; |
198ce79b | 2096 | |
933fbc29 MS |
2097 | case BFD_RELOC_390_20: |
2098 | case BFD_RELOC_390_GOT20: | |
2099 | case BFD_RELOC_390_GOTPLT20: | |
2100 | if (fixP->fx_done) | |
2101 | { | |
2102 | unsigned int mop; | |
2103 | mop = bfd_getb32 ((unsigned char *) where); | |
2104 | mop |= (unsigned int) ((value & 0xfff) << 8 | | |
2105 | (value & 0xff000) >> 12); | |
2106 | bfd_putb32 ((bfd_vma) mop, (unsigned char *) where); | |
2107 | } | |
2108 | break; | |
2109 | ||
07855bec NC |
2110 | case BFD_RELOC_16: |
2111 | case BFD_RELOC_GPREL16: | |
2112 | case BFD_RELOC_16_GOT_PCREL: | |
2113 | case BFD_RELOC_16_GOTOFF: | |
94f592af NC |
2114 | if (fixP->fx_pcrel) |
2115 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
07855bec | 2116 | "cannot emit PC relative %s relocation%s%s", |
94f592af NC |
2117 | bfd_get_reloc_code_name (fixP->fx_r_type), |
2118 | fixP->fx_addsy != NULL ? " against " : "", | |
2119 | (fixP->fx_addsy != NULL | |
2120 | ? S_GET_NAME (fixP->fx_addsy) | |
07855bec | 2121 | : "")); |
94f592af | 2122 | if (fixP->fx_done) |
07855bec NC |
2123 | md_number_to_chars (where, value, 2); |
2124 | break; | |
2125 | case BFD_RELOC_390_GOT16: | |
2a19f73f MS |
2126 | case BFD_RELOC_390_PLTOFF16: |
2127 | case BFD_RELOC_390_GOTPLT16: | |
94f592af | 2128 | if (fixP->fx_done) |
07855bec NC |
2129 | md_number_to_chars (where, value, 2); |
2130 | break; | |
2131 | case BFD_RELOC_390_PC16DBL: | |
2132 | case BFD_RELOC_390_PLT16DBL: | |
2133 | value += 2; | |
94f592af | 2134 | if (fixP->fx_done) |
07855bec NC |
2135 | md_number_to_chars (where, (offsetT) value >> 1, 2); |
2136 | break; | |
2137 | ||
2138 | case BFD_RELOC_32: | |
94f592af NC |
2139 | if (fixP->fx_pcrel) |
2140 | fixP->fx_r_type = BFD_RELOC_32_PCREL; | |
07855bec | 2141 | else |
94f592af NC |
2142 | fixP->fx_r_type = BFD_RELOC_32; |
2143 | if (fixP->fx_done) | |
07855bec NC |
2144 | md_number_to_chars (where, value, 4); |
2145 | break; | |
2146 | case BFD_RELOC_32_PCREL: | |
2147 | case BFD_RELOC_32_BASEREL: | |
94f592af NC |
2148 | fixP->fx_r_type = BFD_RELOC_32_PCREL; |
2149 | if (fixP->fx_done) | |
07855bec NC |
2150 | md_number_to_chars (where, value, 4); |
2151 | break; | |
2152 | case BFD_RELOC_32_GOT_PCREL: | |
2a19f73f | 2153 | case BFD_RELOC_390_PLTOFF32: |
07855bec | 2154 | case BFD_RELOC_390_PLT32: |
2a19f73f | 2155 | case BFD_RELOC_390_GOTPLT32: |
94f592af | 2156 | if (fixP->fx_done) |
07855bec NC |
2157 | md_number_to_chars (where, value, 4); |
2158 | break; | |
2159 | case BFD_RELOC_390_PC32DBL: | |
2160 | case BFD_RELOC_390_PLT32DBL: | |
2161 | case BFD_RELOC_390_GOTPCDBL: | |
2162 | case BFD_RELOC_390_GOTENT: | |
2a19f73f | 2163 | case BFD_RELOC_390_GOTPLTENT: |
07855bec | 2164 | value += 2; |
94f592af | 2165 | if (fixP->fx_done) |
07855bec NC |
2166 | md_number_to_chars (where, (offsetT) value >> 1, 4); |
2167 | break; | |
2168 | ||
2169 | case BFD_RELOC_32_GOTOFF: | |
94f592af | 2170 | if (fixP->fx_done) |
07726851 | 2171 | md_number_to_chars (where, value, sizeof (int)); |
07855bec NC |
2172 | break; |
2173 | ||
2a19f73f MS |
2174 | case BFD_RELOC_390_GOTOFF64: |
2175 | if (fixP->fx_done) | |
2176 | md_number_to_chars (where, value, 8); | |
2177 | break; | |
2178 | ||
07855bec | 2179 | case BFD_RELOC_390_GOT64: |
2a19f73f | 2180 | case BFD_RELOC_390_PLTOFF64: |
07855bec | 2181 | case BFD_RELOC_390_PLT64: |
2a19f73f | 2182 | case BFD_RELOC_390_GOTPLT64: |
94f592af | 2183 | if (fixP->fx_done) |
07855bec NC |
2184 | md_number_to_chars (where, value, 8); |
2185 | break; | |
2186 | ||
2187 | case BFD_RELOC_64: | |
94f592af NC |
2188 | if (fixP->fx_pcrel) |
2189 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
07855bec | 2190 | else |
94f592af NC |
2191 | fixP->fx_r_type = BFD_RELOC_64; |
2192 | if (fixP->fx_done) | |
07855bec NC |
2193 | md_number_to_chars (where, value, 8); |
2194 | break; | |
2195 | ||
2196 | case BFD_RELOC_64_PCREL: | |
94f592af NC |
2197 | fixP->fx_r_type = BFD_RELOC_64_PCREL; |
2198 | if (fixP->fx_done) | |
07855bec NC |
2199 | md_number_to_chars (where, value, 8); |
2200 | break; | |
2201 | ||
2202 | case BFD_RELOC_VTABLE_INHERIT: | |
2203 | case BFD_RELOC_VTABLE_ENTRY: | |
94f592af NC |
2204 | fixP->fx_done = 0; |
2205 | return; | |
07855bec | 2206 | |
1971b29d MS |
2207 | case BFD_RELOC_390_TLS_LOAD: |
2208 | case BFD_RELOC_390_TLS_GDCALL: | |
2209 | case BFD_RELOC_390_TLS_LDCALL: | |
2210 | case BFD_RELOC_390_TLS_GD32: | |
2211 | case BFD_RELOC_390_TLS_GD64: | |
2212 | case BFD_RELOC_390_TLS_GOTIE12: | |
933fbc29 | 2213 | case BFD_RELOC_390_TLS_GOTIE20: |
1971b29d MS |
2214 | case BFD_RELOC_390_TLS_GOTIE32: |
2215 | case BFD_RELOC_390_TLS_GOTIE64: | |
2216 | case BFD_RELOC_390_TLS_LDM32: | |
2217 | case BFD_RELOC_390_TLS_LDM64: | |
2218 | case BFD_RELOC_390_TLS_IE32: | |
2219 | case BFD_RELOC_390_TLS_IE64: | |
2220 | case BFD_RELOC_390_TLS_LE32: | |
2221 | case BFD_RELOC_390_TLS_LE64: | |
2222 | case BFD_RELOC_390_TLS_LDO32: | |
2223 | case BFD_RELOC_390_TLS_LDO64: | |
2224 | case BFD_RELOC_390_TLS_DTPMOD: | |
2225 | case BFD_RELOC_390_TLS_DTPOFF: | |
2226 | case BFD_RELOC_390_TLS_TPOFF: | |
2227 | /* Fully resolved at link time. */ | |
2228 | break; | |
2229 | case BFD_RELOC_390_TLS_IEENT: | |
2230 | /* Fully resolved at link time. */ | |
2231 | value += 2; | |
2232 | break; | |
2233 | ||
07855bec NC |
2234 | default: |
2235 | { | |
94f592af | 2236 | const char *reloc_name = bfd_get_reloc_code_name (fixP->fx_r_type); |
198ce79b | 2237 | |
07855bec NC |
2238 | if (reloc_name != NULL) |
2239 | fprintf (stderr, "Gas failure, reloc type %s\n", reloc_name); | |
2240 | else | |
94f592af | 2241 | fprintf (stderr, "Gas failure, reloc type #%i\n", fixP->fx_r_type); |
07855bec NC |
2242 | fflush (stderr); |
2243 | abort (); | |
2244 | } | |
2245 | } | |
a85d7ed0 | 2246 | |
94f592af | 2247 | fixP->fx_offset = value; |
07855bec | 2248 | } |
a85d7ed0 NC |
2249 | } |
2250 | ||
2251 | /* Generate a reloc for a fixup. */ | |
2252 | ||
2253 | arelent * | |
2254 | tc_gen_reloc (seg, fixp) | |
2255 | asection *seg ATTRIBUTE_UNUSED; | |
2256 | fixS *fixp; | |
2257 | { | |
2258 | bfd_reloc_code_real_type code; | |
2259 | arelent *reloc; | |
2260 | ||
2261 | code = fixp->fx_r_type; | |
07855bec NC |
2262 | if (GOT_symbol && fixp->fx_addsy == GOT_symbol) |
2263 | { | |
16a419ba NC |
2264 | if ( (s390_arch_size == 32 && code == BFD_RELOC_32_PCREL) |
2265 | || (s390_arch_size == 64 && code == BFD_RELOC_64_PCREL)) | |
07855bec NC |
2266 | code = BFD_RELOC_390_GOTPC; |
2267 | if (code == BFD_RELOC_390_PC32DBL) | |
2268 | code = BFD_RELOC_390_GOTPCDBL; | |
2269 | } | |
a85d7ed0 NC |
2270 | |
2271 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
2272 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); | |
2273 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
2274 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
2275 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
2276 | if (reloc->howto == NULL) | |
2277 | { | |
2278 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
98d3f06f KH |
2279 | _("cannot represent relocation type %s"), |
2280 | bfd_get_reloc_code_name (code)); | |
a85d7ed0 NC |
2281 | /* Set howto to a garbage value so that we can keep going. */ |
2282 | reloc->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); | |
2283 | assert (reloc->howto != NULL); | |
2284 | } | |
2285 | reloc->addend = fixp->fx_offset; | |
2286 | ||
2287 | return reloc; | |
2288 | } |