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a85d7ed0 | 1 | /* tc-s390.c -- Assemble for the S390 |
ec2655a6 | 2 | Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 |
f17c130b | 3 | Free Software Foundation, Inc. |
a85d7ed0 NC |
4 | Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). |
5 | ||
6 | This file is part of GAS, the GNU Assembler. | |
7 | ||
8 | GAS is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 10 | the Free Software Foundation; either version 3, or (at your option) |
a85d7ed0 NC |
11 | any later version. |
12 | ||
13 | GAS is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GAS; see the file COPYING. If not, write to the Free | |
4b4da160 NC |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ | |
a85d7ed0 | 22 | |
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" |
75e21f08 | 28 | #include "dw2gencfi.h" |
a85d7ed0 NC |
29 | |
30 | #include "opcode/s390.h" | |
31 | #include "elf/s390.h" | |
32 | ||
16a419ba | 33 | /* The default architecture. */ |
a85d7ed0 NC |
34 | #ifndef DEFAULT_ARCH |
35 | #define DEFAULT_ARCH "s390" | |
36 | #endif | |
37 | static char *default_arch = DEFAULT_ARCH; | |
38 | /* Either 32 or 64, selects file format. */ | |
37a58793 MS |
39 | static int s390_arch_size = 0; |
40 | ||
41 | static unsigned int current_mode_mask = 0; | |
42 | static unsigned int current_cpu = -1U; | |
a85d7ed0 | 43 | |
b34976b6 | 44 | /* Whether to use user friendly register names. Default is TRUE. */ |
a85d7ed0 | 45 | #ifndef TARGET_REG_NAMES_P |
b34976b6 | 46 | #define TARGET_REG_NAMES_P TRUE |
a85d7ed0 NC |
47 | #endif |
48 | ||
b34976b6 | 49 | static bfd_boolean reg_names_p = TARGET_REG_NAMES_P; |
a85d7ed0 | 50 | |
16a419ba | 51 | /* Set to TRUE if we want to warn about zero base/index registers. */ |
b34976b6 | 52 | static bfd_boolean warn_areg_zero = FALSE; |
16a419ba | 53 | |
a85d7ed0 NC |
54 | /* Generic assembler global variables which must be defined by all |
55 | targets. */ | |
56 | ||
57 | const char comment_chars[] = "#"; | |
58 | ||
59 | /* Characters which start a comment at the beginning of a line. */ | |
60 | const char line_comment_chars[] = "#"; | |
61 | ||
62 | /* Characters which may be used to separate multiple commands on a | |
63 | single line. */ | |
64 | const char line_separator_chars[] = ";"; | |
65 | ||
66 | /* Characters which are used to indicate an exponent in a floating | |
67 | point number. */ | |
68 | const char EXP_CHARS[] = "eE"; | |
69 | ||
70 | /* Characters which mean that a number is a floating point constant, | |
71 | as in 0d1.0. */ | |
72 | const char FLT_CHARS[] = "dD"; | |
73 | ||
75e21f08 JJ |
74 | /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */ |
75 | int s390_cie_data_alignment; | |
76 | ||
a85d7ed0 NC |
77 | /* The target specific pseudo-ops which we support. */ |
78 | ||
79 | /* Define the prototypes for the pseudo-ops */ | |
80 | static void s390_byte PARAMS ((int)); | |
81 | static void s390_elf_cons PARAMS ((int)); | |
82 | static void s390_bss PARAMS ((int)); | |
83 | static void s390_insn PARAMS ((int)); | |
84 | static void s390_literals PARAMS ((int)); | |
85 | ||
86 | const pseudo_typeS md_pseudo_table[] = | |
87 | { | |
88 | { "align", s_align_bytes, 0 }, | |
98d3f06f | 89 | /* Pseudo-ops which must be defined. */ |
198ce79b | 90 | { "bss", s390_bss, 0 }, |
a85d7ed0 NC |
91 | { "insn", s390_insn, 0 }, |
92 | /* Pseudo-ops which must be overridden. */ | |
93 | { "byte", s390_byte, 0 }, | |
94 | { "short", s390_elf_cons, 2 }, | |
95 | { "long", s390_elf_cons, 4 }, | |
96 | { "quad", s390_elf_cons, 8 }, | |
97 | { "ltorg", s390_literals, 0 }, | |
38a57ae7 | 98 | { "string", stringer, 8 + 1 }, |
a85d7ed0 NC |
99 | { NULL, NULL, 0 } |
100 | }; | |
101 | ||
102 | ||
103 | /* Structure to hold information about predefined registers. */ | |
104 | struct pd_reg | |
105 | { | |
106 | char *name; | |
107 | int value; | |
108 | }; | |
109 | ||
110 | /* List of registers that are pre-defined: | |
111 | ||
112 | Each access register has a predefined name of the form: | |
113 | a<reg_num> which has the value <reg_num>. | |
114 | ||
115 | Each control register has a predefined name of the form: | |
116 | c<reg_num> which has the value <reg_num>. | |
117 | ||
118 | Each general register has a predefined name of the form: | |
119 | r<reg_num> which has the value <reg_num>. | |
120 | ||
121 | Each floating point register a has predefined name of the form: | |
122 | f<reg_num> which has the value <reg_num>. | |
123 | ||
124 | There are individual registers as well: | |
125 | sp has the value 15 | |
126 | lit has the value 12 | |
127 | ||
98d3f06f | 128 | The table is sorted. Suitable for searching by a binary search. */ |
a85d7ed0 NC |
129 | |
130 | static const struct pd_reg pre_defined_registers[] = | |
131 | { | |
132 | { "a0", 0 }, /* Access registers */ | |
133 | { "a1", 1 }, | |
134 | { "a10", 10 }, | |
135 | { "a11", 11 }, | |
136 | { "a12", 12 }, | |
137 | { "a13", 13 }, | |
138 | { "a14", 14 }, | |
139 | { "a15", 15 }, | |
140 | { "a2", 2 }, | |
141 | { "a3", 3 }, | |
142 | { "a4", 4 }, | |
143 | { "a5", 5 }, | |
144 | { "a6", 6 }, | |
145 | { "a7", 7 }, | |
146 | { "a8", 8 }, | |
147 | { "a9", 9 }, | |
148 | ||
149 | { "c0", 0 }, /* Control registers */ | |
150 | { "c1", 1 }, | |
151 | { "c10", 10 }, | |
152 | { "c11", 11 }, | |
153 | { "c12", 12 }, | |
154 | { "c13", 13 }, | |
155 | { "c14", 14 }, | |
156 | { "c15", 15 }, | |
157 | { "c2", 2 }, | |
158 | { "c3", 3 }, | |
159 | { "c4", 4 }, | |
160 | { "c5", 5 }, | |
161 | { "c6", 6 }, | |
162 | { "c7", 7 }, | |
163 | { "c8", 8 }, | |
164 | { "c9", 9 }, | |
165 | ||
166 | { "f0", 0 }, /* Floating point registers */ | |
198ce79b AJ |
167 | { "f1", 1 }, |
168 | { "f10", 10 }, | |
169 | { "f11", 11 }, | |
170 | { "f12", 12 }, | |
171 | { "f13", 13 }, | |
172 | { "f14", 14 }, | |
173 | { "f15", 15 }, | |
174 | { "f2", 2 }, | |
175 | { "f3", 3 }, | |
176 | { "f4", 4 }, | |
177 | { "f5", 5 }, | |
178 | { "f6", 6 }, | |
179 | { "f7", 7 }, | |
180 | { "f8", 8 }, | |
181 | { "f9", 9 }, | |
a85d7ed0 NC |
182 | |
183 | { "lit", 13 }, /* Pointer to literal pool */ | |
184 | ||
185 | { "r0", 0 }, /* General purpose registers */ | |
186 | { "r1", 1 }, | |
187 | { "r10", 10 }, | |
188 | { "r11", 11 }, | |
189 | { "r12", 12 }, | |
190 | { "r13", 13 }, | |
191 | { "r14", 14 }, | |
192 | { "r15", 15 }, | |
193 | { "r2", 2 }, | |
194 | { "r3", 3 }, | |
195 | { "r4", 4 }, | |
196 | { "r5", 5 }, | |
197 | { "r6", 6 }, | |
198 | { "r7", 7 }, | |
199 | { "r8", 8 }, | |
200 | { "r9", 9 }, | |
201 | ||
202 | { "sp", 15 }, /* Stack pointer */ | |
203 | ||
204 | }; | |
205 | ||
07726851 | 206 | #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg)) |
a85d7ed0 | 207 | |
9d654c1c AJ |
208 | static int reg_name_search |
209 | PARAMS ((const struct pd_reg *, int, const char *)); | |
b34976b6 | 210 | static bfd_boolean register_name PARAMS ((expressionS *)); |
9d654c1c AJ |
211 | static void init_default_arch PARAMS ((void)); |
212 | static void s390_insert_operand | |
213 | PARAMS ((unsigned char *, const struct s390_operand *, offsetT, char *, | |
214 | unsigned int)); | |
215 | static char *md_gather_operands | |
216 | PARAMS ((char *, unsigned char *, const struct s390_opcode *)); | |
217 | ||
a85d7ed0 NC |
218 | /* Given NAME, find the register number associated with that name, return |
219 | the integer value associated with the given name or -1 on failure. */ | |
220 | ||
221 | static int | |
222 | reg_name_search (regs, regcount, name) | |
223 | const struct pd_reg *regs; | |
224 | int regcount; | |
225 | const char *name; | |
226 | { | |
227 | int middle, low, high; | |
228 | int cmp; | |
229 | ||
230 | low = 0; | |
231 | high = regcount - 1; | |
232 | ||
233 | do | |
234 | { | |
235 | middle = (low + high) / 2; | |
236 | cmp = strcasecmp (name, regs[middle].name); | |
237 | if (cmp < 0) | |
238 | high = middle - 1; | |
239 | else if (cmp > 0) | |
240 | low = middle + 1; | |
241 | else | |
242 | return regs[middle].value; | |
243 | } | |
244 | while (low <= high); | |
245 | ||
246 | return -1; | |
247 | } | |
248 | ||
249 | ||
250 | /* | |
251 | * Summary of register_name(). | |
252 | * | |
253 | * in: Input_line_pointer points to 1st char of operand. | |
254 | * | |
255 | * out: A expressionS. | |
256 | * The operand may have been a register: in this case, X_op == O_register, | |
257 | * X_add_number is set to the register number, and truth is returned. | |
258 | * Input_line_pointer->(next non-blank) char after operand, or is in its | |
259 | * original state. | |
260 | */ | |
261 | ||
b34976b6 | 262 | static bfd_boolean |
a85d7ed0 NC |
263 | register_name (expressionP) |
264 | expressionS *expressionP; | |
265 | { | |
266 | int reg_number; | |
267 | char *name; | |
268 | char *start; | |
269 | char c; | |
270 | ||
468cced8 | 271 | /* Find the spelling of the operand. */ |
a85d7ed0 | 272 | start = name = input_line_pointer; |
3882b010 | 273 | if (name[0] == '%' && ISALPHA (name[1])) |
a85d7ed0 NC |
274 | name = ++input_line_pointer; |
275 | else | |
b34976b6 | 276 | return FALSE; |
a85d7ed0 NC |
277 | |
278 | c = get_symbol_end (); | |
279 | reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name); | |
280 | ||
468cced8 AM |
281 | /* Put back the delimiting char. */ |
282 | *input_line_pointer = c; | |
283 | ||
284 | /* Look to see if it's in the register table. */ | |
198ce79b | 285 | if (reg_number >= 0) |
a85d7ed0 NC |
286 | { |
287 | expressionP->X_op = O_register; | |
288 | expressionP->X_add_number = reg_number; | |
198ce79b | 289 | |
468cced8 | 290 | /* Make the rest nice. */ |
a85d7ed0 NC |
291 | expressionP->X_add_symbol = NULL; |
292 | expressionP->X_op_symbol = NULL; | |
b34976b6 | 293 | return TRUE; |
a85d7ed0 | 294 | } |
468cced8 AM |
295 | |
296 | /* Reset the line as if we had not done anything. */ | |
297 | input_line_pointer = start; | |
b34976b6 | 298 | return FALSE; |
a85d7ed0 NC |
299 | } |
300 | ||
301 | /* Local variables. */ | |
302 | ||
303 | /* Opformat hash table. */ | |
304 | static struct hash_control *s390_opformat_hash; | |
305 | ||
306 | /* Opcode hash table. */ | |
307 | static struct hash_control *s390_opcode_hash; | |
308 | ||
309 | /* Flags to set in the elf header */ | |
310 | static flagword s390_flags = 0; | |
311 | ||
312 | symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE_" */ | |
313 | ||
314 | #ifndef WORKING_DOT_WORD | |
2b4f075a HPN |
315 | int md_short_jump_size = 4; |
316 | int md_long_jump_size = 4; | |
a85d7ed0 NC |
317 | #endif |
318 | ||
5a38dc70 | 319 | const char *md_shortopts = "A:m:kVQ:"; |
a85d7ed0 NC |
320 | struct option md_longopts[] = { |
321 | {NULL, no_argument, NULL, 0} | |
322 | }; | |
07726851 | 323 | size_t md_longopts_size = sizeof (md_longopts); |
a85d7ed0 NC |
324 | |
325 | /* Initialize the default opcode arch and word size from the default | |
37a58793 | 326 | architecture name if not specified by an option. */ |
a85d7ed0 NC |
327 | static void |
328 | init_default_arch () | |
329 | { | |
07726851 | 330 | if (strcmp (default_arch, "s390") == 0) |
07855bec | 331 | { |
37a58793 MS |
332 | if (s390_arch_size == 0) |
333 | s390_arch_size = 32; | |
07855bec | 334 | } |
07726851 | 335 | else if (strcmp (default_arch, "s390x") == 0) |
07855bec | 336 | { |
37a58793 MS |
337 | if (s390_arch_size == 0) |
338 | s390_arch_size = 64; | |
07855bec NC |
339 | } |
340 | else | |
a85d7ed0 | 341 | as_fatal ("Invalid default architecture, broken assembler."); |
df9a398f MS |
342 | |
343 | if (current_mode_mask == 0) | |
344 | { | |
345 | if (s390_arch_size == 32) | |
346 | current_mode_mask = 1 << S390_OPCODE_ESA; | |
347 | else | |
348 | current_mode_mask = 1 << S390_OPCODE_ZARCH; | |
349 | } | |
350 | if (current_cpu == -1U) | |
351 | { | |
352 | if (current_mode_mask == (1 << S390_OPCODE_ESA)) | |
353 | current_cpu = S390_OPCODE_G5; | |
354 | else | |
355 | current_cpu = S390_OPCODE_Z900; | |
356 | } | |
a85d7ed0 NC |
357 | } |
358 | ||
359 | /* Called by TARGET_FORMAT. */ | |
360 | const char * | |
361 | s390_target_format () | |
362 | { | |
363 | /* We don't get a chance to initialize anything before we're called, | |
364 | so handle that now. */ | |
2ebb4b88 | 365 | init_default_arch (); |
a85d7ed0 NC |
366 | |
367 | return s390_arch_size == 64 ? "elf64-s390" : "elf32-s390"; | |
368 | } | |
369 | ||
370 | int | |
371 | md_parse_option (c, arg) | |
372 | int c; | |
373 | char *arg; | |
374 | { | |
07855bec NC |
375 | switch (c) |
376 | { | |
377 | /* -k: Ignore for FreeBSD compatibility. */ | |
378 | case 'k': | |
379 | break; | |
380 | case 'm': | |
381 | if (arg != NULL && strcmp (arg, "regnames") == 0) | |
b34976b6 | 382 | reg_names_p = TRUE; |
198ce79b | 383 | |
07855bec | 384 | else if (arg != NULL && strcmp (arg, "no-regnames") == 0) |
b34976b6 | 385 | reg_names_p = FALSE; |
198ce79b | 386 | |
16a419ba NC |
387 | else if (arg != NULL && strcmp (arg, "warn-areg-zero") == 0) |
388 | warn_areg_zero = TRUE; | |
389 | ||
ff0fb565 | 390 | else if (arg != NULL && strcmp (arg, "31") == 0) |
75504fed | 391 | s390_arch_size = 32; |
ff0fb565 MS |
392 | |
393 | else if (arg != NULL && strcmp (arg, "64") == 0) | |
394 | s390_arch_size = 64; | |
395 | ||
37a58793 MS |
396 | else if (arg != NULL && strcmp (arg, "esa") == 0) |
397 | current_mode_mask = 1 << S390_OPCODE_ESA; | |
398 | ||
399 | else if (arg != NULL && strcmp (arg, "zarch") == 0) | |
400 | current_mode_mask = 1 << S390_OPCODE_ZARCH; | |
401 | ||
402 | else if (arg != NULL && strncmp (arg, "arch=", 5) == 0) | |
403 | { | |
404 | if (strcmp (arg + 5, "g5") == 0) | |
405 | current_cpu = S390_OPCODE_G5; | |
406 | else if (strcmp (arg + 5, "g6") == 0) | |
407 | current_cpu = S390_OPCODE_G6; | |
408 | else if (strcmp (arg + 5, "z900") == 0) | |
409 | current_cpu = S390_OPCODE_Z900; | |
933fbc29 MS |
410 | else if (strcmp (arg + 5, "z990") == 0) |
411 | current_cpu = S390_OPCODE_Z990; | |
6c639ef9 MS |
412 | else if (strcmp (arg + 5, "z9-109") == 0) |
413 | current_cpu = S390_OPCODE_Z9_109; | |
b5639b37 MS |
414 | else if (strcmp (arg + 5, "z9-ec") == 0) |
415 | current_cpu = S390_OPCODE_Z9_EC; | |
37a58793 MS |
416 | else |
417 | { | |
418 | as_bad (_("invalid switch -m%s"), arg); | |
419 | return 0; | |
420 | } | |
421 | } | |
422 | ||
07855bec NC |
423 | else |
424 | { | |
425 | as_bad (_("invalid switch -m%s"), arg); | |
426 | return 0; | |
427 | } | |
428 | break; | |
198ce79b | 429 | |
07855bec | 430 | case 'A': |
67c1ffbe | 431 | /* Option -A is deprecated. Still available for compatibility. */ |
07855bec | 432 | if (arg != NULL && strcmp (arg, "esa") == 0) |
37a58793 | 433 | current_cpu = S390_OPCODE_G5; |
07855bec | 434 | else if (arg != NULL && strcmp (arg, "esame") == 0) |
37a58793 | 435 | current_cpu = S390_OPCODE_Z900; |
07855bec NC |
436 | else |
437 | as_bad ("invalid architecture -A%s", arg); | |
07855bec NC |
438 | break; |
439 | ||
440 | /* -V: SVR4 argument to print version ID. */ | |
441 | case 'V': | |
442 | print_version_id (); | |
443 | break; | |
198ce79b | 444 | |
07855bec NC |
445 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section |
446 | should be emitted or not. FIXME: Not implemented. */ | |
447 | case 'Q': | |
448 | break; | |
198ce79b | 449 | |
07855bec NC |
450 | default: |
451 | return 0; | |
452 | } | |
198ce79b | 453 | |
a85d7ed0 NC |
454 | return 1; |
455 | } | |
456 | ||
457 | void | |
458 | md_show_usage (stream) | |
459 | FILE *stream; | |
460 | { | |
07855bec | 461 | fprintf (stream, _("\ |
16a419ba NC |
462 | S390 options:\n\ |
463 | -mregnames Allow symbolic names for registers\n\ | |
464 | -mwarn-areg-zero Warn about zero base/index registers\n\ | |
ff0fb565 MS |
465 | -mno-regnames Do not allow symbolic names for registers\n\ |
466 | -m31 Set file format to 31 bit format\n\ | |
467 | -m64 Set file format to 64 bit format\n")); | |
07855bec | 468 | fprintf (stream, _("\ |
16a419ba NC |
469 | -V print assembler version number\n\ |
470 | -Qy, -Qn ignored\n")); | |
a85d7ed0 NC |
471 | } |
472 | ||
473 | /* This function is called when the assembler starts up. It is called | |
474 | after the options have been parsed and the output file has been | |
16a419ba | 475 | opened. */ |
a85d7ed0 NC |
476 | |
477 | void | |
478 | md_begin () | |
479 | { | |
480 | register const struct s390_opcode *op; | |
481 | const struct s390_opcode *op_end; | |
b34976b6 | 482 | bfd_boolean dup_insn = FALSE; |
a85d7ed0 NC |
483 | const char *retval; |
484 | ||
ff0fb565 | 485 | /* Give a warning if the combination -m64-bit and -Aesa is used. */ |
37a58793 | 486 | if (s390_arch_size == 64 && current_cpu < S390_OPCODE_Z900) |
ff0fb565 MS |
487 | as_warn ("The 64 bit file format is used without esame instructions."); |
488 | ||
75e21f08 JJ |
489 | s390_cie_data_alignment = -s390_arch_size / 8; |
490 | ||
16a419ba | 491 | /* Set the ELF flags if desired. */ |
a85d7ed0 NC |
492 | if (s390_flags) |
493 | bfd_set_private_flags (stdoutput, s390_flags); | |
494 | ||
495 | /* Insert the opcode formats into a hash table. */ | |
496 | s390_opformat_hash = hash_new (); | |
497 | ||
498 | op_end = s390_opformats + s390_num_opformats; | |
07855bec NC |
499 | for (op = s390_opformats; op < op_end; op++) |
500 | { | |
501 | retval = hash_insert (s390_opformat_hash, op->name, (PTR) op); | |
502 | if (retval != (const char *) NULL) | |
503 | { | |
504 | as_bad (_("Internal assembler error for instruction format %s"), | |
505 | op->name); | |
b34976b6 | 506 | dup_insn = TRUE; |
07855bec NC |
507 | } |
508 | } | |
a85d7ed0 NC |
509 | |
510 | /* Insert the opcodes into a hash table. */ | |
511 | s390_opcode_hash = hash_new (); | |
512 | ||
513 | op_end = s390_opcodes + s390_num_opcodes; | |
07855bec | 514 | for (op = s390_opcodes; op < op_end; op++) |
933fbc29 MS |
515 | if (op->min_cpu <= current_cpu) |
516 | { | |
517 | retval = hash_insert (s390_opcode_hash, op->name, (PTR) op); | |
518 | if (retval != (const char *) NULL) | |
519 | { | |
520 | as_bad (_("Internal assembler error for instruction %s"), | |
521 | op->name); | |
522 | dup_insn = TRUE; | |
523 | } | |
524 | while (op < op_end - 1 && strcmp (op->name, op[1].name) == 0) | |
525 | op++; | |
526 | } | |
07855bec | 527 | |
a85d7ed0 NC |
528 | if (dup_insn) |
529 | abort (); | |
530 | ||
531 | record_alignment (text_section, 2); | |
532 | record_alignment (data_section, 2); | |
533 | record_alignment (bss_section, 2); | |
534 | ||
535 | } | |
536 | ||
537 | /* Called after all assembly has been done. */ | |
538 | void | |
539 | s390_md_end () | |
540 | { | |
07855bec | 541 | if (s390_arch_size == 64) |
ff0fb565 | 542 | bfd_set_arch_mach (stdoutput, bfd_arch_s390, bfd_mach_s390_64); |
07855bec | 543 | else |
ff0fb565 | 544 | bfd_set_arch_mach (stdoutput, bfd_arch_s390, bfd_mach_s390_31); |
a85d7ed0 NC |
545 | } |
546 | ||
a85d7ed0 NC |
547 | /* Insert an operand value into an instruction. */ |
548 | ||
549 | static void | |
550 | s390_insert_operand (insn, operand, val, file, line) | |
551 | unsigned char *insn; | |
552 | const struct s390_operand *operand; | |
553 | offsetT val; | |
554 | char *file; | |
555 | unsigned int line; | |
556 | { | |
557 | addressT uval; | |
558 | int offset; | |
559 | ||
07855bec NC |
560 | if (operand->flags & (S390_OPERAND_SIGNED|S390_OPERAND_PCREL)) |
561 | { | |
562 | offsetT min, max; | |
563 | ||
564 | max = ((offsetT) 1 << (operand->bits - 1)) - 1; | |
565 | min = - ((offsetT) 1 << (operand->bits - 1)); | |
566 | /* Halve PCREL operands. */ | |
567 | if (operand->flags & S390_OPERAND_PCREL) | |
568 | val >>= 1; | |
569 | /* Check for underflow / overflow. */ | |
570 | if (val < min || val > max) | |
571 | { | |
572 | const char *err = | |
573 | "operand out of range (%s not between %ld and %ld)"; | |
574 | char buf[100]; | |
575 | ||
576 | if (operand->flags & S390_OPERAND_PCREL) | |
577 | { | |
578 | val <<= 1; | |
579 | min <<= 1; | |
580 | max <<= 1; | |
581 | } | |
582 | sprint_value (buf, val); | |
583 | if (file == (char *) NULL) | |
584 | as_bad (err, buf, (int) min, (int) max); | |
585 | else | |
586 | as_bad_where (file, line, err, buf, (int) min, (int) max); | |
587 | return; | |
588 | } | |
589 | /* val is ok, now restrict it to operand->bits bits. */ | |
590 | uval = (addressT) val & ((((addressT) 1 << (operand->bits-1)) << 1) - 1); | |
933fbc29 MS |
591 | /* val is restrict, now check for special case. */ |
592 | if (operand->bits == 20 && operand->shift == 20) | |
593 | uval = (uval >> 12) | ((uval & 0xfff) << 8); | |
a85d7ed0 | 594 | } |
07855bec NC |
595 | else |
596 | { | |
597 | addressT min, max; | |
198ce79b | 598 | |
98d3f06f | 599 | max = (((addressT) 1 << (operand->bits - 1)) << 1) - 1; |
07855bec NC |
600 | min = (offsetT) 0; |
601 | uval = (addressT) val; | |
602 | /* Length x in an instructions has real length x+1. */ | |
603 | if (operand->flags & S390_OPERAND_LENGTH) | |
604 | uval--; | |
605 | /* Check for underflow / overflow. */ | |
606 | if (uval < min || uval > max) | |
607 | { | |
07855bec NC |
608 | if (operand->flags & S390_OPERAND_LENGTH) |
609 | { | |
610 | uval++; | |
611 | min++; | |
612 | max++; | |
613 | } | |
e5976317 NC |
614 | |
615 | as_bad_value_out_of_range (_("operand"), uval, (offsetT) min, (offsetT) max, file, line); | |
616 | ||
07855bec NC |
617 | return; |
618 | } | |
a85d7ed0 | 619 | } |
a85d7ed0 NC |
620 | |
621 | /* Insert fragments of the operand byte for byte. */ | |
622 | offset = operand->shift + operand->bits; | |
623 | uval <<= (-offset) & 7; | |
98d3f06f | 624 | insn += (offset - 1) / 8; |
07855bec NC |
625 | while (uval != 0) |
626 | { | |
627 | *insn-- |= uval; | |
628 | uval >>= 8; | |
629 | } | |
a85d7ed0 NC |
630 | } |
631 | ||
1971b29d MS |
632 | struct map_tls |
633 | { | |
634 | char *string; | |
635 | int length; | |
636 | bfd_reloc_code_real_type reloc; | |
637 | }; | |
638 | ||
639 | static bfd_reloc_code_real_type s390_tls_suffix | |
640 | PARAMS ((char **, expressionS *)); | |
641 | ||
642 | /* Parse tls marker and return the desired relocation. */ | |
643 | static bfd_reloc_code_real_type | |
644 | s390_tls_suffix (str_p, exp_p) | |
645 | char **str_p; | |
646 | expressionS *exp_p; | |
647 | { | |
648 | static struct map_tls mapping[] = | |
649 | { | |
650 | { "tls_load", 8, BFD_RELOC_390_TLS_LOAD }, | |
651 | { "tls_gdcall", 10, BFD_RELOC_390_TLS_GDCALL }, | |
652 | { "tls_ldcall", 10, BFD_RELOC_390_TLS_LDCALL }, | |
653 | { NULL, 0, BFD_RELOC_UNUSED } | |
654 | }; | |
655 | struct map_tls *ptr; | |
656 | char *orig_line; | |
657 | char *str; | |
658 | char *ident; | |
659 | int len; | |
660 | ||
661 | str = *str_p; | |
662 | if (*str++ != ':') | |
663 | return BFD_RELOC_UNUSED; | |
664 | ||
665 | ident = str; | |
666 | while (ISIDNUM (*str)) | |
667 | str++; | |
668 | len = str - ident; | |
669 | if (*str++ != ':') | |
670 | return BFD_RELOC_UNUSED; | |
671 | ||
672 | orig_line = input_line_pointer; | |
673 | input_line_pointer = str; | |
674 | expression (exp_p); | |
675 | str = input_line_pointer; | |
676 | if (&input_line_pointer != str_p) | |
677 | input_line_pointer = orig_line; | |
678 | ||
679 | if (exp_p->X_op != O_symbol) | |
680 | return BFD_RELOC_UNUSED; | |
681 | ||
682 | for (ptr = &mapping[0]; ptr->length > 0; ptr++) | |
683 | if (len == ptr->length | |
684 | && strncasecmp (ident, ptr->string, ptr->length) == 0) | |
685 | { | |
686 | /* Found a matching tls suffix. */ | |
687 | *str_p = str; | |
688 | return ptr->reloc; | |
689 | } | |
690 | return BFD_RELOC_UNUSED; | |
691 | } | |
692 | ||
a85d7ed0 | 693 | /* Structure used to hold suffixes. */ |
07855bec NC |
694 | typedef enum |
695 | { | |
696 | ELF_SUFFIX_NONE = 0, | |
697 | ELF_SUFFIX_GOT, | |
698 | ELF_SUFFIX_PLT, | |
2a19f73f MS |
699 | ELF_SUFFIX_GOTENT, |
700 | ELF_SUFFIX_GOTOFF, | |
701 | ELF_SUFFIX_GOTPLT, | |
1971b29d MS |
702 | ELF_SUFFIX_PLTOFF, |
703 | ELF_SUFFIX_TLS_GD, | |
704 | ELF_SUFFIX_TLS_GOTIE, | |
705 | ELF_SUFFIX_TLS_IE, | |
706 | ELF_SUFFIX_TLS_LDM, | |
707 | ELF_SUFFIX_TLS_LDO, | |
708 | ELF_SUFFIX_TLS_LE | |
07855bec NC |
709 | } |
710 | elf_suffix_type; | |
711 | ||
712 | struct map_bfd | |
713 | { | |
714 | char *string; | |
715 | int length; | |
716 | elf_suffix_type suffix; | |
717 | }; | |
a85d7ed0 | 718 | |
9d654c1c AJ |
719 | static elf_suffix_type s390_elf_suffix PARAMS ((char **, expressionS *)); |
720 | static int s390_exp_compare PARAMS ((expressionS *exp1, expressionS *exp2)); | |
721 | static elf_suffix_type s390_lit_suffix | |
722 | PARAMS ((char **, expressionS *, elf_suffix_type)); | |
723 | ||
724 | ||
a85d7ed0 NC |
725 | /* Parse @got/@plt/@gotoff. and return the desired relocation. */ |
726 | static elf_suffix_type | |
727 | s390_elf_suffix (str_p, exp_p) | |
728 | char **str_p; | |
729 | expressionS *exp_p; | |
730 | { | |
07855bec NC |
731 | static struct map_bfd mapping[] = |
732 | { | |
a85d7ed0 NC |
733 | { "got", 3, ELF_SUFFIX_GOT }, |
734 | { "got12", 5, ELF_SUFFIX_GOT }, | |
735 | { "plt", 3, ELF_SUFFIX_PLT }, | |
736 | { "gotent", 6, ELF_SUFFIX_GOTENT }, | |
2a19f73f MS |
737 | { "gotoff", 6, ELF_SUFFIX_GOTOFF }, |
738 | { "gotplt", 6, ELF_SUFFIX_GOTPLT }, | |
739 | { "pltoff", 6, ELF_SUFFIX_PLTOFF }, | |
1971b29d MS |
740 | { "tlsgd", 5, ELF_SUFFIX_TLS_GD }, |
741 | { "gotntpoff", 9, ELF_SUFFIX_TLS_GOTIE }, | |
742 | { "indntpoff", 9, ELF_SUFFIX_TLS_IE }, | |
743 | { "tlsldm", 6, ELF_SUFFIX_TLS_LDM }, | |
744 | { "dtpoff", 6, ELF_SUFFIX_TLS_LDO }, | |
745 | { "ntpoff", 6, ELF_SUFFIX_TLS_LE }, | |
a85d7ed0 NC |
746 | { NULL, 0, ELF_SUFFIX_NONE } |
747 | }; | |
748 | ||
749 | struct map_bfd *ptr; | |
750 | char *str = *str_p; | |
751 | char *ident; | |
752 | int len; | |
753 | ||
754 | if (*str++ != '@') | |
755 | return ELF_SUFFIX_NONE; | |
756 | ||
757 | ident = str; | |
3882b010 | 758 | while (ISALNUM (*str)) |
a85d7ed0 NC |
759 | str++; |
760 | len = str - ident; | |
761 | ||
762 | for (ptr = &mapping[0]; ptr->length > 0; ptr++) | |
16a419ba NC |
763 | if (len == ptr->length |
764 | && strncasecmp (ident, ptr->string, ptr->length) == 0) | |
07855bec NC |
765 | { |
766 | if (exp_p->X_add_number != 0) | |
767 | as_warn (_("identifier+constant@%s means identifier@%s+constant"), | |
768 | ptr->string, ptr->string); | |
769 | /* Now check for identifier@suffix+constant. */ | |
770 | if (*str == '-' || *str == '+') | |
771 | { | |
772 | char *orig_line = input_line_pointer; | |
773 | expressionS new_exp; | |
774 | ||
775 | input_line_pointer = str; | |
776 | expression (&new_exp); | |
777 | ||
778 | switch (new_exp.X_op) | |
779 | { | |
780 | case O_constant: /* X_add_number (a constant expression). */ | |
781 | exp_p->X_add_number += new_exp.X_add_number; | |
782 | str = input_line_pointer; | |
783 | break; | |
784 | case O_symbol: /* X_add_symbol + X_add_number. */ | |
785 | /* this case is used for e.g. xyz@PLT+.Label. */ | |
786 | exp_p->X_add_number += new_exp.X_add_number; | |
787 | exp_p->X_op_symbol = new_exp.X_add_symbol; | |
788 | exp_p->X_op = O_add; | |
789 | str = input_line_pointer; | |
790 | break; | |
791 | case O_uminus: /* (- X_add_symbol) + X_add_number. */ | |
792 | /* this case is used for e.g. xyz@PLT-.Label. */ | |
793 | exp_p->X_add_number += new_exp.X_add_number; | |
794 | exp_p->X_op_symbol = new_exp.X_add_symbol; | |
795 | exp_p->X_op = O_subtract; | |
796 | str = input_line_pointer; | |
797 | break; | |
798 | default: | |
799 | break; | |
800 | } | |
801 | ||
802 | /* If s390_elf_suffix has not been called with | |
803 | &input_line_pointer as first parameter, we have | |
804 | clobbered the input_line_pointer. We have to | |
805 | undo that. */ | |
806 | if (&input_line_pointer != str_p) | |
807 | input_line_pointer = orig_line; | |
a85d7ed0 | 808 | } |
07855bec NC |
809 | *str_p = str; |
810 | return ptr->suffix; | |
a85d7ed0 | 811 | } |
a85d7ed0 NC |
812 | |
813 | return BFD_RELOC_UNUSED; | |
814 | } | |
815 | ||
816 | /* Structure used to hold a literal pool entry. */ | |
07855bec NC |
817 | struct s390_lpe |
818 | { | |
819 | struct s390_lpe *next; | |
820 | expressionS ex; | |
821 | FLONUM_TYPE floatnum; /* used if X_op == O_big && X_add_number <= 0 */ | |
822 | LITTLENUM_TYPE bignum[4]; /* used if X_op == O_big && X_add_number > 0 */ | |
823 | int nbytes; | |
824 | bfd_reloc_code_real_type reloc; | |
825 | symbolS *sym; | |
826 | }; | |
a85d7ed0 NC |
827 | |
828 | static struct s390_lpe *lpe_free_list = NULL; | |
829 | static struct s390_lpe *lpe_list = NULL; | |
830 | static struct s390_lpe *lpe_list_tail = NULL; | |
831 | static symbolS *lp_sym = NULL; | |
832 | static int lp_count = 0; | |
833 | static int lpe_count = 0; | |
834 | ||
835 | static int | |
98d3f06f | 836 | s390_exp_compare (exp1, exp2) |
a85d7ed0 NC |
837 | expressionS *exp1; |
838 | expressionS *exp2; | |
839 | { | |
840 | if (exp1->X_op != exp2->X_op) | |
841 | return 0; | |
842 | ||
07855bec NC |
843 | switch (exp1->X_op) |
844 | { | |
845 | case O_constant: /* X_add_number must be equal. */ | |
846 | case O_register: | |
847 | return exp1->X_add_number == exp2->X_add_number; | |
848 | ||
849 | case O_big: | |
198ce79b | 850 | as_bad (_("Can't handle O_big in s390_exp_compare")); |
07855bec NC |
851 | |
852 | case O_symbol: /* X_add_symbol & X_add_number must be equal. */ | |
853 | case O_symbol_rva: | |
854 | case O_uminus: | |
855 | case O_bit_not: | |
856 | case O_logical_not: | |
16a419ba NC |
857 | return (exp1->X_add_symbol == exp2->X_add_symbol) |
858 | && (exp1->X_add_number == exp2->X_add_number); | |
07855bec NC |
859 | |
860 | case O_multiply: /* X_add_symbol,X_op_symbol&X_add_number must be equal. */ | |
861 | case O_divide: | |
862 | case O_modulus: | |
863 | case O_left_shift: | |
864 | case O_right_shift: | |
865 | case O_bit_inclusive_or: | |
866 | case O_bit_or_not: | |
867 | case O_bit_exclusive_or: | |
868 | case O_bit_and: | |
869 | case O_add: | |
870 | case O_subtract: | |
871 | case O_eq: | |
872 | case O_ne: | |
873 | case O_lt: | |
874 | case O_le: | |
875 | case O_ge: | |
876 | case O_gt: | |
877 | case O_logical_and: | |
878 | case O_logical_or: | |
16a419ba NC |
879 | return (exp1->X_add_symbol == exp2->X_add_symbol) |
880 | && (exp1->X_op_symbol == exp2->X_op_symbol) | |
881 | && (exp1->X_add_number == exp2->X_add_number); | |
07855bec | 882 | default: |
98d3f06f KH |
883 | return 0; |
884 | } | |
a85d7ed0 NC |
885 | } |
886 | ||
887 | /* Test for @lit and if its present make an entry in the literal pool and | |
888 | modify the current expression to be an offset into the literal pool. */ | |
889 | static elf_suffix_type | |
890 | s390_lit_suffix (str_p, exp_p, suffix) | |
891 | char **str_p; | |
892 | expressionS *exp_p; | |
893 | elf_suffix_type suffix; | |
894 | { | |
895 | bfd_reloc_code_real_type reloc; | |
896 | char tmp_name[64]; | |
897 | char *str = *str_p; | |
898 | char *ident; | |
899 | struct s390_lpe *lpe; | |
900 | int nbytes, len; | |
901 | ||
902 | if (*str++ != ':') | |
903 | return suffix; /* No modification. */ | |
198ce79b | 904 | |
a85d7ed0 NC |
905 | /* We look for a suffix of the form "@lit1", "@lit2", "@lit4" or "@lit8". */ |
906 | ident = str; | |
3882b010 | 907 | while (ISALNUM (*str)) |
a85d7ed0 NC |
908 | str++; |
909 | len = str - ident; | |
16a419ba NC |
910 | if (len != 4 || strncasecmp (ident, "lit", 3) != 0 |
911 | || (ident[3]!='1' && ident[3]!='2' && ident[3]!='4' && ident[3]!='8')) | |
a85d7ed0 NC |
912 | return suffix; /* no modification */ |
913 | nbytes = ident[3] - '0'; | |
914 | ||
915 | reloc = BFD_RELOC_UNUSED; | |
07855bec NC |
916 | if (suffix == ELF_SUFFIX_GOT) |
917 | { | |
918 | if (nbytes == 2) | |
919 | reloc = BFD_RELOC_390_GOT16; | |
920 | else if (nbytes == 4) | |
921 | reloc = BFD_RELOC_32_GOT_PCREL; | |
922 | else if (nbytes == 8) | |
923 | reloc = BFD_RELOC_390_GOT64; | |
924 | } | |
925 | else if (suffix == ELF_SUFFIX_PLT) | |
926 | { | |
927 | if (nbytes == 4) | |
928 | reloc = BFD_RELOC_390_PLT32; | |
929 | else if (nbytes == 8) | |
930 | reloc = BFD_RELOC_390_PLT64; | |
931 | } | |
a85d7ed0 | 932 | |
07855bec | 933 | if (suffix != ELF_SUFFIX_NONE && reloc == BFD_RELOC_UNUSED) |
a85d7ed0 | 934 | as_bad (_("Invalid suffix for literal pool entry")); |
a85d7ed0 NC |
935 | |
936 | /* Search the pool if the new entry is a duplicate. */ | |
07855bec NC |
937 | if (exp_p->X_op == O_big) |
938 | { | |
939 | /* Special processing for big numbers. */ | |
940 | for (lpe = lpe_list; lpe != NULL; lpe = lpe->next) | |
941 | { | |
942 | if (lpe->ex.X_op == O_big) | |
943 | { | |
944 | if (exp_p->X_add_number <= 0 && lpe->ex.X_add_number <= 0) | |
945 | { | |
946 | if (memcmp (&generic_floating_point_number, &lpe->floatnum, | |
947 | sizeof (FLONUM_TYPE)) == 0) | |
948 | break; | |
949 | } | |
950 | else if (exp_p->X_add_number == lpe->ex.X_add_number) | |
951 | { | |
952 | if (memcmp (generic_bignum, lpe->bignum, | |
953 | sizeof (LITTLENUM_TYPE)*exp_p->X_add_number) == 0) | |
954 | break; | |
955 | } | |
956 | } | |
957 | } | |
a85d7ed0 | 958 | } |
07855bec NC |
959 | else |
960 | { | |
961 | /* Processing for 'normal' data types. */ | |
962 | for (lpe = lpe_list; lpe != NULL; lpe = lpe->next) | |
16a419ba | 963 | if (lpe->nbytes == nbytes && lpe->reloc == reloc |
98d3f06f | 964 | && s390_exp_compare (exp_p, &lpe->ex) != 0) |
07855bec | 965 | break; |
a85d7ed0 | 966 | } |
07855bec NC |
967 | |
968 | if (lpe == NULL) | |
969 | { | |
970 | /* A new literal. */ | |
971 | if (lpe_free_list != NULL) | |
972 | { | |
973 | lpe = lpe_free_list; | |
974 | lpe_free_list = lpe_free_list->next; | |
975 | } | |
a85d7ed0 | 976 | else |
07855bec | 977 | { |
98d3f06f | 978 | lpe = (struct s390_lpe *) xmalloc (sizeof (struct s390_lpe)); |
07855bec NC |
979 | } |
980 | ||
981 | lpe->ex = *exp_p; | |
982 | ||
983 | if (exp_p->X_op == O_big) | |
984 | { | |
985 | if (exp_p->X_add_number <= 0) | |
986 | lpe->floatnum = generic_floating_point_number; | |
987 | else if (exp_p->X_add_number <= 4) | |
988 | memcpy (lpe->bignum, generic_bignum, | |
98d3f06f | 989 | exp_p->X_add_number * sizeof (LITTLENUM_TYPE)); |
07855bec NC |
990 | else |
991 | as_bad (_("Big number is too big")); | |
992 | } | |
993 | ||
994 | lpe->nbytes = nbytes; | |
995 | lpe->reloc = reloc; | |
996 | /* Literal pool name defined ? */ | |
997 | if (lp_sym == NULL) | |
998 | { | |
07726851 | 999 | sprintf (tmp_name, ".L\001%i", lp_count); |
98d3f06f | 1000 | lp_sym = symbol_make (tmp_name); |
07855bec | 1001 | } |
a85d7ed0 | 1002 | |
07855bec | 1003 | /* Make name for literal pool entry. */ |
07726851 | 1004 | sprintf (tmp_name, ".L\001%i\002%i", lp_count, lpe_count); |
07855bec | 1005 | lpe_count++; |
98d3f06f | 1006 | lpe->sym = symbol_make (tmp_name); |
07855bec NC |
1007 | |
1008 | /* Add to literal pool list. */ | |
1009 | lpe->next = NULL; | |
1010 | if (lpe_list_tail != NULL) | |
1011 | { | |
1012 | lpe_list_tail->next = lpe; | |
1013 | lpe_list_tail = lpe; | |
1014 | } | |
1015 | else | |
1016 | lpe_list = lpe_list_tail = lpe; | |
1017 | } | |
198ce79b | 1018 | |
a85d7ed0 NC |
1019 | /* Now change exp_p to the offset into the literal pool. |
1020 | Thats the expression: .L^Ax^By-.L^Ax */ | |
1021 | exp_p->X_add_symbol = lpe->sym; | |
1022 | exp_p->X_op_symbol = lp_sym; | |
1023 | exp_p->X_op = O_subtract; | |
1024 | exp_p->X_add_number = 0; | |
1025 | ||
1026 | *str_p = str; | |
1027 | ||
1028 | /* We change the suffix type to ELF_SUFFIX_NONE, because | |
1029 | the difference of two local labels is just a number. */ | |
1030 | return ELF_SUFFIX_NONE; | |
1031 | } | |
1032 | ||
1033 | /* Like normal .long/.short/.word, except support @got, etc. | |
1034 | clobbers input_line_pointer, checks end-of-line. */ | |
1035 | static void | |
1036 | s390_elf_cons (nbytes) | |
1037 | register int nbytes; /* 1=.byte, 2=.word, 4=.long */ | |
1038 | { | |
1039 | expressionS exp; | |
1040 | elf_suffix_type suffix; | |
1041 | ||
07855bec NC |
1042 | if (is_it_end_of_statement ()) |
1043 | { | |
1044 | demand_empty_rest_of_line (); | |
1045 | return; | |
1046 | } | |
a85d7ed0 | 1047 | |
07855bec NC |
1048 | do |
1049 | { | |
1050 | expression (&exp); | |
1051 | ||
1052 | if (exp.X_op == O_symbol | |
1053 | && *input_line_pointer == '@' | |
1054 | && (suffix = s390_elf_suffix (&input_line_pointer, &exp)) != ELF_SUFFIX_NONE) | |
1055 | { | |
1056 | bfd_reloc_code_real_type reloc; | |
1057 | reloc_howto_type *reloc_howto; | |
1058 | int size; | |
1059 | char *where; | |
1060 | ||
1971b29d MS |
1061 | if (nbytes == 2) |
1062 | { | |
1063 | static bfd_reloc_code_real_type tab2[] = | |
1064 | { | |
5cfbfc2b MS |
1065 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_NONE */ |
1066 | BFD_RELOC_390_GOT16, /* ELF_SUFFIX_GOT */ | |
1067 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_PLT */ | |
1068 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTENT */ | |
1069 | BFD_RELOC_16_GOTOFF, /* ELF_SUFFIX_GOTOFF */ | |
1070 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTPLT */ | |
1071 | BFD_RELOC_390_PLTOFF16, /* ELF_SUFFIX_PLTOFF */ | |
1072 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_GD */ | |
1073 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_GOTIE */ | |
1074 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_IE */ | |
1075 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_LDM */ | |
1076 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_LDO */ | |
1077 | BFD_RELOC_UNUSED /* ELF_SUFFIX_TLS_LE */ | |
1971b29d MS |
1078 | }; |
1079 | reloc = tab2[suffix]; | |
1080 | } | |
1081 | else if (nbytes == 4) | |
1082 | { | |
1083 | static bfd_reloc_code_real_type tab4[] = | |
1084 | { | |
5cfbfc2b MS |
1085 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_NONE */ |
1086 | BFD_RELOC_32_GOT_PCREL, /* ELF_SUFFIX_GOT */ | |
1087 | BFD_RELOC_390_PLT32, /* ELF_SUFFIX_PLT */ | |
1088 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTENT */ | |
1089 | BFD_RELOC_32_GOTOFF, /* ELF_SUFFIX_GOTOFF */ | |
1090 | BFD_RELOC_390_GOTPLT32, /* ELF_SUFFIX_GOTPLT */ | |
1091 | BFD_RELOC_390_PLTOFF32, /* ELF_SUFFIX_PLTOFF */ | |
1092 | BFD_RELOC_390_TLS_GD32, /* ELF_SUFFIX_TLS_GD */ | |
1093 | BFD_RELOC_390_TLS_GOTIE32, /* ELF_SUFFIX_TLS_GOTIE */ | |
1094 | BFD_RELOC_390_TLS_IE32, /* ELF_SUFFIX_TLS_IE */ | |
1095 | BFD_RELOC_390_TLS_LDM32, /* ELF_SUFFIX_TLS_LDM */ | |
1096 | BFD_RELOC_390_TLS_LDO32, /* ELF_SUFFIX_TLS_LDO */ | |
1097 | BFD_RELOC_390_TLS_LE32 /* ELF_SUFFIX_TLS_LE */ | |
1971b29d MS |
1098 | }; |
1099 | reloc = tab4[suffix]; | |
1100 | } | |
1101 | else if (nbytes == 8) | |
1102 | { | |
1103 | static bfd_reloc_code_real_type tab8[] = | |
1104 | { | |
5cfbfc2b MS |
1105 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_NONE */ |
1106 | BFD_RELOC_390_GOT64, /* ELF_SUFFIX_GOT */ | |
1107 | BFD_RELOC_390_PLT64, /* ELF_SUFFIX_PLT */ | |
1108 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTENT */ | |
1109 | BFD_RELOC_390_GOTOFF64, /* ELF_SUFFIX_GOTOFF */ | |
1110 | BFD_RELOC_390_GOTPLT64, /* ELF_SUFFIX_GOTPLT */ | |
1111 | BFD_RELOC_390_PLTOFF64, /* ELF_SUFFIX_PLTOFF */ | |
1112 | BFD_RELOC_390_TLS_GD64, /* ELF_SUFFIX_TLS_GD */ | |
1113 | BFD_RELOC_390_TLS_GOTIE64, /* ELF_SUFFIX_TLS_GOTIE */ | |
1114 | BFD_RELOC_390_TLS_IE64, /* ELF_SUFFIX_TLS_IE */ | |
1115 | BFD_RELOC_390_TLS_LDM64, /* ELF_SUFFIX_TLS_LDM */ | |
1116 | BFD_RELOC_390_TLS_LDO64, /* ELF_SUFFIX_TLS_LDO */ | |
1117 | BFD_RELOC_390_TLS_LE64 /* ELF_SUFFIX_TLS_LE */ | |
1971b29d MS |
1118 | }; |
1119 | reloc = tab8[suffix]; | |
1120 | } | |
07855bec NC |
1121 | else |
1122 | reloc = BFD_RELOC_UNUSED; | |
1123 | ||
1971b29d MS |
1124 | if (reloc != BFD_RELOC_UNUSED |
1125 | && (reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc))) | |
07855bec | 1126 | { |
07855bec NC |
1127 | size = bfd_get_reloc_size (reloc_howto); |
1128 | if (size > nbytes) | |
1129 | as_bad (_("%s relocations do not fit in %d bytes"), | |
1130 | reloc_howto->name, nbytes); | |
07726851 | 1131 | where = frag_more (nbytes); |
07855bec | 1132 | md_number_to_chars (where, 0, size); |
198ce79b | 1133 | /* To make fixup_segment do the pc relative conversion the |
b34976b6 | 1134 | pcrel parameter on the fix_new_exp call needs to be FALSE. */ |
198ce79b | 1135 | fix_new_exp (frag_now, where - frag_now->fr_literal, |
b34976b6 | 1136 | size, &exp, FALSE, reloc); |
07855bec NC |
1137 | } |
1138 | else | |
1139 | as_bad (_("relocation not applicable")); | |
1140 | } | |
a85d7ed0 | 1141 | else |
07855bec NC |
1142 | emit_expr (&exp, (unsigned int) nbytes); |
1143 | } | |
1144 | while (*input_line_pointer++ == ','); | |
a85d7ed0 | 1145 | |
98d3f06f | 1146 | input_line_pointer--; /* Put terminator back into stream. */ |
a85d7ed0 NC |
1147 | demand_empty_rest_of_line (); |
1148 | } | |
1149 | ||
1150 | /* We need to keep a list of fixups. We can't simply generate them as | |
1151 | we go, because that would require us to first create the frag, and | |
1152 | that would screw up references to ``.''. */ | |
1153 | ||
1154 | struct s390_fixup | |
07855bec NC |
1155 | { |
1156 | expressionS exp; | |
1157 | int opindex; | |
1158 | bfd_reloc_code_real_type reloc; | |
1159 | }; | |
a85d7ed0 NC |
1160 | |
1161 | #define MAX_INSN_FIXUPS (4) | |
1162 | ||
1163 | /* This routine is called for each instruction to be assembled. */ | |
1164 | ||
9d654c1c | 1165 | static char * |
a85d7ed0 NC |
1166 | md_gather_operands (str, insn, opcode) |
1167 | char *str; | |
1168 | unsigned char *insn; | |
1169 | const struct s390_opcode *opcode; | |
1170 | { | |
1171 | struct s390_fixup fixups[MAX_INSN_FIXUPS]; | |
1172 | const struct s390_operand *operand; | |
1173 | const unsigned char *opindex_ptr; | |
1971b29d | 1174 | expressionS ex; |
a85d7ed0 NC |
1175 | elf_suffix_type suffix; |
1176 | bfd_reloc_code_real_type reloc; | |
1177 | int skip_optional; | |
1178 | int parentheses; | |
1179 | char *f; | |
1180 | int fc, i; | |
1181 | ||
98d3f06f KH |
1182 | while (ISSPACE (*str)) |
1183 | str++; | |
a85d7ed0 NC |
1184 | |
1185 | parentheses = 0; | |
1186 | skip_optional = 0; | |
1187 | ||
1188 | /* Gather the operands. */ | |
1189 | fc = 0; | |
07855bec NC |
1190 | for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++) |
1191 | { | |
07855bec NC |
1192 | char *hold; |
1193 | ||
1194 | operand = s390_operands + *opindex_ptr; | |
198ce79b | 1195 | |
07855bec NC |
1196 | if (skip_optional && (operand->flags & S390_OPERAND_INDEX)) |
1197 | { | |
1198 | /* We do an early skip. For D(X,B) constructions the index | |
198ce79b | 1199 | register is skipped (X is optional). For D(L,B) the base |
07855bec NC |
1200 | register will be the skipped operand, because L is NOT |
1201 | optional. */ | |
1202 | skip_optional = 0; | |
1203 | continue; | |
1204 | } | |
198ce79b | 1205 | |
07855bec NC |
1206 | /* Gather the operand. */ |
1207 | hold = input_line_pointer; | |
1208 | input_line_pointer = str; | |
1209 | ||
98d3f06f KH |
1210 | /* Parse the operand. */ |
1211 | if (! register_name (&ex)) | |
07855bec | 1212 | expression (&ex); |
198ce79b | 1213 | |
07855bec NC |
1214 | str = input_line_pointer; |
1215 | input_line_pointer = hold; | |
198ce79b | 1216 | |
07855bec NC |
1217 | /* Write the operand to the insn. */ |
1218 | if (ex.X_op == O_illegal) | |
1219 | as_bad (_("illegal operand")); | |
1220 | else if (ex.X_op == O_absent) | |
1221 | as_bad (_("missing operand")); | |
1222 | else if (ex.X_op == O_register || ex.X_op == O_constant) | |
1223 | { | |
1224 | s390_lit_suffix (&str, &ex, ELF_SUFFIX_NONE); | |
1225 | ||
1226 | if (ex.X_op != O_register && ex.X_op != O_constant) | |
1227 | { | |
1228 | /* We need to generate a fixup for the | |
1229 | expression returned by s390_lit_suffix. */ | |
1230 | if (fc >= MAX_INSN_FIXUPS) | |
1231 | as_fatal (_("too many fixups")); | |
1232 | fixups[fc].exp = ex; | |
1233 | fixups[fc].opindex = *opindex_ptr; | |
1234 | fixups[fc].reloc = BFD_RELOC_UNUSED; | |
1235 | ++fc; | |
1236 | } | |
1237 | else | |
1238 | { | |
16a419ba NC |
1239 | if ((operand->flags & S390_OPERAND_INDEX) |
1240 | && ex.X_add_number == 0 | |
b34976b6 | 1241 | && warn_areg_zero) |
07726851 | 1242 | as_warn ("index register specified but zero"); |
16a419ba NC |
1243 | if ((operand->flags & S390_OPERAND_BASE) |
1244 | && ex.X_add_number == 0 | |
b34976b6 | 1245 | && warn_areg_zero) |
07726851 | 1246 | as_warn ("base register specified but zero"); |
07855bec NC |
1247 | s390_insert_operand (insn, operand, ex.X_add_number, NULL, 0); |
1248 | } | |
1249 | } | |
1250 | else | |
1251 | { | |
1252 | suffix = s390_elf_suffix (&str, &ex); | |
1253 | suffix = s390_lit_suffix (&str, &ex, suffix); | |
1254 | reloc = BFD_RELOC_UNUSED; | |
1255 | ||
1256 | if (suffix == ELF_SUFFIX_GOT) | |
1257 | { | |
933fbc29 MS |
1258 | if ((operand->flags & S390_OPERAND_DISP) && |
1259 | (operand->bits == 12)) | |
07855bec | 1260 | reloc = BFD_RELOC_390_GOT12; |
933fbc29 MS |
1261 | else if ((operand->flags & S390_OPERAND_DISP) && |
1262 | (operand->bits == 20)) | |
1263 | reloc = BFD_RELOC_390_GOT20; | |
16a419ba NC |
1264 | else if ((operand->flags & S390_OPERAND_SIGNED) |
1265 | && (operand->bits == 16)) | |
07855bec | 1266 | reloc = BFD_RELOC_390_GOT16; |
16a419ba NC |
1267 | else if ((operand->flags & S390_OPERAND_PCREL) |
1268 | && (operand->bits == 32)) | |
07855bec NC |
1269 | reloc = BFD_RELOC_390_GOTENT; |
1270 | } | |
1271 | else if (suffix == ELF_SUFFIX_PLT) | |
1272 | { | |
16a419ba NC |
1273 | if ((operand->flags & S390_OPERAND_PCREL) |
1274 | && (operand->bits == 16)) | |
07855bec | 1275 | reloc = BFD_RELOC_390_PLT16DBL; |
16a419ba NC |
1276 | else if ((operand->flags & S390_OPERAND_PCREL) |
1277 | && (operand->bits == 32)) | |
07855bec NC |
1278 | reloc = BFD_RELOC_390_PLT32DBL; |
1279 | } | |
1280 | else if (suffix == ELF_SUFFIX_GOTENT) | |
1281 | { | |
16a419ba NC |
1282 | if ((operand->flags & S390_OPERAND_PCREL) |
1283 | && (operand->bits == 32)) | |
07855bec NC |
1284 | reloc = BFD_RELOC_390_GOTENT; |
1285 | } | |
2a19f73f MS |
1286 | else if (suffix == ELF_SUFFIX_GOTOFF) |
1287 | { | |
1288 | if ((operand->flags & S390_OPERAND_SIGNED) | |
1289 | && (operand->bits == 16)) | |
1290 | reloc = BFD_RELOC_16_GOTOFF; | |
1291 | } | |
1292 | else if (suffix == ELF_SUFFIX_PLTOFF) | |
1293 | { | |
1294 | if ((operand->flags & S390_OPERAND_SIGNED) | |
1295 | && (operand->bits == 16)) | |
1296 | reloc = BFD_RELOC_390_PLTOFF16; | |
1297 | } | |
1298 | else if (suffix == ELF_SUFFIX_GOTPLT) | |
1299 | { | |
1300 | if ((operand->flags & S390_OPERAND_DISP) | |
1301 | && (operand->bits == 12)) | |
1302 | reloc = BFD_RELOC_390_GOTPLT12; | |
1303 | else if ((operand->flags & S390_OPERAND_SIGNED) | |
1304 | && (operand->bits == 16)) | |
1305 | reloc = BFD_RELOC_390_GOTPLT16; | |
1306 | else if ((operand->flags & S390_OPERAND_PCREL) | |
1307 | && (operand->bits == 32)) | |
1308 | reloc = BFD_RELOC_390_GOTPLTENT; | |
1309 | } | |
1971b29d MS |
1310 | else if (suffix == ELF_SUFFIX_TLS_GOTIE) |
1311 | { | |
1312 | if ((operand->flags & S390_OPERAND_DISP) | |
1313 | && (operand->bits == 12)) | |
1314 | reloc = BFD_RELOC_390_TLS_GOTIE12; | |
933fbc29 MS |
1315 | else if ((operand->flags & S390_OPERAND_DISP) |
1316 | && (operand->bits == 20)) | |
1317 | reloc = BFD_RELOC_390_TLS_GOTIE20; | |
1971b29d MS |
1318 | } |
1319 | else if (suffix == ELF_SUFFIX_TLS_IE) | |
1320 | { | |
1321 | if ((operand->flags & S390_OPERAND_PCREL) | |
1322 | && (operand->bits == 32)) | |
1323 | reloc = BFD_RELOC_390_TLS_IEENT; | |
1324 | } | |
07855bec NC |
1325 | |
1326 | if (suffix != ELF_SUFFIX_NONE && reloc == BFD_RELOC_UNUSED) | |
1327 | as_bad (_("invalid operand suffix")); | |
1328 | /* We need to generate a fixup of type 'reloc' for this | |
1329 | expression. */ | |
a85d7ed0 NC |
1330 | if (fc >= MAX_INSN_FIXUPS) |
1331 | as_fatal (_("too many fixups")); | |
1332 | fixups[fc].exp = ex; | |
1333 | fixups[fc].opindex = *opindex_ptr; | |
07855bec | 1334 | fixups[fc].reloc = reloc; |
a85d7ed0 | 1335 | ++fc; |
07855bec | 1336 | } |
198ce79b | 1337 | |
07855bec NC |
1338 | /* Check the next character. The call to expression has advanced |
1339 | str past any whitespace. */ | |
1340 | if (operand->flags & S390_OPERAND_DISP) | |
1341 | { | |
1342 | /* After a displacement a block in parentheses can start. */ | |
1343 | if (*str != '(') | |
1344 | { | |
67c1ffbe | 1345 | /* Check if parenthesized block can be skipped. If the next |
07855bec NC |
1346 | operand is neiter an optional operand nor a base register |
1347 | then we have a syntax error. */ | |
1348 | operand = s390_operands + *(++opindex_ptr); | |
1349 | if (!(operand->flags & (S390_OPERAND_INDEX|S390_OPERAND_BASE))) | |
1350 | as_bad (_("syntax error; missing '(' after displacement")); | |
1351 | ||
1352 | /* Ok, skip all operands until S390_OPERAND_BASE. */ | |
1353 | while (!(operand->flags & S390_OPERAND_BASE)) | |
1354 | operand = s390_operands + *(++opindex_ptr); | |
198ce79b | 1355 | |
67c1ffbe | 1356 | /* If there is a next operand it must be separated by a comma. */ |
07855bec NC |
1357 | if (opindex_ptr[1] != '\0') |
1358 | { | |
6c639ef9 MS |
1359 | if (*str != ',') |
1360 | { | |
1361 | while (opindex_ptr[1] != '\0') | |
1362 | { | |
1363 | operand = s390_operands + *(++opindex_ptr); | |
1364 | if (operand->flags & S390_OPERAND_OPTIONAL) | |
1365 | continue; | |
1366 | as_bad (_("syntax error; expected ,")); | |
1367 | break; | |
1368 | } | |
1369 | } | |
1370 | else | |
1371 | str++; | |
07855bec NC |
1372 | } |
1373 | } | |
1374 | else | |
1375 | { | |
1376 | /* We found an opening parentheses. */ | |
1377 | str++; | |
1378 | for (f = str; *f != '\0'; f++) | |
1379 | if (*f == ',' || *f == ')') | |
1380 | break; | |
1381 | /* If there is no comma until the closing parentheses OR | |
1382 | there is a comma right after the opening parentheses, | |
1383 | we have to skip optional operands. */ | |
1384 | if (*f == ',' && f == str) | |
1385 | { | |
1386 | /* comma directly after '(' ? */ | |
1387 | skip_optional = 1; | |
1388 | str++; | |
1389 | } | |
1390 | else | |
1391 | skip_optional = (*f != ','); | |
1392 | } | |
1393 | } | |
1394 | else if (operand->flags & S390_OPERAND_BASE) | |
1395 | { | |
1396 | /* After the base register the parenthesed block ends. */ | |
1397 | if (*str++ != ')') | |
1398 | as_bad (_("syntax error; missing ')' after base register")); | |
1399 | skip_optional = 0; | |
67c1ffbe | 1400 | /* If there is a next operand it must be separated by a comma. */ |
07855bec NC |
1401 | if (opindex_ptr[1] != '\0') |
1402 | { | |
6c639ef9 MS |
1403 | if (*str != ',') |
1404 | { | |
1405 | while (opindex_ptr[1] != '\0') | |
1406 | { | |
1407 | operand = s390_operands + *(++opindex_ptr); | |
1408 | if (operand->flags & S390_OPERAND_OPTIONAL) | |
1409 | continue; | |
1410 | as_bad (_("syntax error; expected ,")); | |
1411 | break; | |
1412 | } | |
1413 | } | |
1414 | else | |
1415 | str++; | |
07855bec NC |
1416 | } |
1417 | } | |
1418 | else | |
1419 | { | |
1420 | /* We can find an 'early' closing parentheses in e.g. D(L) instead | |
1421 | of D(L,B). In this case the base register has to be skipped. */ | |
1422 | if (*str == ')') | |
1423 | { | |
1424 | operand = s390_operands + *(++opindex_ptr); | |
1425 | ||
1426 | if (!(operand->flags & S390_OPERAND_BASE)) | |
1427 | as_bad (_("syntax error; ')' not allowed here")); | |
1428 | str++; | |
1429 | } | |
67c1ffbe | 1430 | /* If there is a next operand it must be separated by a comma. */ |
07855bec NC |
1431 | if (opindex_ptr[1] != '\0') |
1432 | { | |
6c639ef9 MS |
1433 | if (*str != ',') |
1434 | { | |
1435 | while (opindex_ptr[1] != '\0') | |
1436 | { | |
1437 | operand = s390_operands + *(++opindex_ptr); | |
1438 | if (operand->flags & S390_OPERAND_OPTIONAL) | |
1439 | continue; | |
1440 | as_bad (_("syntax error; expected ,")); | |
1441 | break; | |
1442 | } | |
1443 | } | |
1444 | else | |
1445 | str++; | |
07855bec | 1446 | } |
a85d7ed0 | 1447 | } |
a85d7ed0 | 1448 | } |
a85d7ed0 | 1449 | |
3882b010 | 1450 | while (ISSPACE (*str)) |
a85d7ed0 NC |
1451 | ++str; |
1452 | ||
1971b29d MS |
1453 | /* Check for tls instruction marker. */ |
1454 | reloc = s390_tls_suffix (&str, &ex); | |
1455 | if (reloc != BFD_RELOC_UNUSED) | |
1456 | { | |
1457 | /* We need to generate a fixup of type 'reloc' for this | |
1458 | instruction. */ | |
1459 | if (fc >= MAX_INSN_FIXUPS) | |
1460 | as_fatal (_("too many fixups")); | |
1461 | fixups[fc].exp = ex; | |
1462 | fixups[fc].opindex = -1; | |
1463 | fixups[fc].reloc = reloc; | |
1464 | ++fc; | |
1465 | } | |
1466 | ||
07855bec NC |
1467 | if (*str != '\0') |
1468 | { | |
1469 | char *linefeed; | |
a85d7ed0 | 1470 | |
07726851 | 1471 | if ((linefeed = strchr (str, '\n')) != NULL) |
07855bec NC |
1472 | *linefeed = '\0'; |
1473 | as_bad (_("junk at end of line: `%s'"), str); | |
1474 | if (linefeed != NULL) | |
1475 | *linefeed = '\n'; | |
1476 | } | |
a85d7ed0 NC |
1477 | |
1478 | /* Write out the instruction. */ | |
1479 | f = frag_more (opcode->oplen); | |
07855bec | 1480 | memcpy (f, insn, opcode->oplen); |
8f5b2891 | 1481 | dwarf2_emit_insn (opcode->oplen); |
a85d7ed0 NC |
1482 | |
1483 | /* Create any fixups. At this point we do not use a | |
1484 | bfd_reloc_code_real_type, but instead just use the | |
1485 | BFD_RELOC_UNUSED plus the operand index. This lets us easily | |
1486 | handle fixups for any operand type, although that is admittedly | |
1487 | not a very exciting feature. We pick a BFD reloc type in | |
55cf6793 | 1488 | md_apply_fix. */ |
07855bec NC |
1489 | for (i = 0; i < fc; i++) |
1490 | { | |
1971b29d MS |
1491 | |
1492 | if (fixups[i].opindex < 0) | |
1493 | { | |
1494 | /* Create tls instruction marker relocation. */ | |
1495 | fix_new_exp (frag_now, f - frag_now->fr_literal, opcode->oplen, | |
1496 | &fixups[i].exp, 0, fixups[i].reloc); | |
1497 | continue; | |
1498 | } | |
1499 | ||
07855bec | 1500 | operand = s390_operands + fixups[i].opindex; |
a85d7ed0 | 1501 | |
07855bec NC |
1502 | if (fixups[i].reloc != BFD_RELOC_UNUSED) |
1503 | { | |
1504 | reloc_howto_type *reloc_howto; | |
1505 | fixS *fixP; | |
1506 | int size; | |
198ce79b | 1507 | |
07855bec NC |
1508 | reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc); |
1509 | if (!reloc_howto) | |
1510 | abort (); | |
198ce79b | 1511 | |
07855bec NC |
1512 | size = bfd_get_reloc_size (reloc_howto); |
1513 | ||
1514 | if (size < 1 || size > 4) | |
1515 | abort (); | |
198ce79b AJ |
1516 | |
1517 | fixP = fix_new_exp (frag_now, | |
1518 | f - frag_now->fr_literal + (operand->shift/8), | |
07855bec NC |
1519 | size, &fixups[i].exp, reloc_howto->pc_relative, |
1520 | fixups[i].reloc); | |
1521 | /* Turn off overflow checking in fixup_segment. This is necessary | |
1522 | because fixup_segment will signal an overflow for large 4 byte | |
1523 | quantities for GOT12 relocations. */ | |
16a419ba | 1524 | if ( fixups[i].reloc == BFD_RELOC_390_GOT12 |
933fbc29 | 1525 | || fixups[i].reloc == BFD_RELOC_390_GOT20 |
16a419ba | 1526 | || fixups[i].reloc == BFD_RELOC_390_GOT16) |
07855bec NC |
1527 | fixP->fx_no_overflow = 1; |
1528 | } | |
1529 | else | |
1530 | fix_new_exp (frag_now, f - frag_now->fr_literal, 4, &fixups[i].exp, | |
1531 | (operand->flags & S390_OPERAND_PCREL) != 0, | |
1532 | ((bfd_reloc_code_real_type) | |
1533 | (fixups[i].opindex + (int) BFD_RELOC_UNUSED))); | |
1534 | } | |
a85d7ed0 NC |
1535 | return str; |
1536 | } | |
1537 | ||
1538 | /* This routine is called for each instruction to be assembled. */ | |
1539 | ||
1540 | void | |
1541 | md_assemble (str) | |
1542 | char *str; | |
1543 | { | |
1544 | const struct s390_opcode *opcode; | |
1545 | unsigned char insn[6]; | |
1546 | char *s; | |
1547 | ||
1548 | /* Get the opcode. */ | |
3882b010 | 1549 | for (s = str; *s != '\0' && ! ISSPACE (*s); s++) |
a85d7ed0 NC |
1550 | ; |
1551 | if (*s != '\0') | |
1552 | *s++ = '\0'; | |
1553 | ||
1554 | /* Look up the opcode in the hash table. */ | |
1555 | opcode = (struct s390_opcode *) hash_find (s390_opcode_hash, str); | |
07855bec NC |
1556 | if (opcode == (const struct s390_opcode *) NULL) |
1557 | { | |
1558 | as_bad (_("Unrecognized opcode: `%s'"), str); | |
1559 | return; | |
1560 | } | |
37a58793 MS |
1561 | else if (!(opcode->modes & current_mode_mask)) |
1562 | { | |
1563 | as_bad ("Opcode %s not available in this mode", str); | |
1564 | return; | |
1565 | } | |
07726851 | 1566 | memcpy (insn, opcode->opcode, sizeof (insn)); |
07855bec | 1567 | md_gather_operands (s, insn, opcode); |
a85d7ed0 NC |
1568 | } |
1569 | ||
1570 | #ifndef WORKING_DOT_WORD | |
1571 | /* Handle long and short jumps. We don't support these */ | |
1572 | void | |
1573 | md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
1574 | char *ptr; | |
1575 | addressT from_addr, to_addr; | |
1576 | fragS *frag; | |
1577 | symbolS *to_symbol; | |
1578 | { | |
1579 | abort (); | |
1580 | } | |
1581 | ||
1582 | void | |
1583 | md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
1584 | char *ptr; | |
1585 | addressT from_addr, to_addr; | |
1586 | fragS *frag; | |
1587 | symbolS *to_symbol; | |
1588 | { | |
1589 | abort (); | |
1590 | } | |
1591 | #endif | |
1592 | ||
1593 | void | |
1594 | s390_bss (ignore) | |
1595 | int ignore ATTRIBUTE_UNUSED; | |
1596 | { | |
1597 | /* We don't support putting frags in the BSS segment, we fake it | |
1598 | by marking in_bss, then looking at s_skip for clues. */ | |
1599 | ||
1600 | subseg_set (bss_section, 0); | |
1601 | demand_empty_rest_of_line (); | |
1602 | } | |
1603 | ||
1604 | /* Pseudo-op handling. */ | |
1605 | ||
1606 | void | |
07726851 | 1607 | s390_insn (ignore) |
a85d7ed0 NC |
1608 | int ignore ATTRIBUTE_UNUSED; |
1609 | { | |
1610 | expressionS exp; | |
1611 | const struct s390_opcode *opformat; | |
1612 | unsigned char insn[6]; | |
1613 | char *s; | |
1614 | ||
1615 | /* Get the opcode format. */ | |
1616 | s = input_line_pointer; | |
3882b010 | 1617 | while (*s != '\0' && *s != ',' && ! ISSPACE (*s)) |
a85d7ed0 NC |
1618 | s++; |
1619 | if (*s != ',') | |
1620 | as_bad (_("Invalid .insn format\n")); | |
1621 | *s++ = '\0'; | |
1622 | ||
1623 | /* Look up the opcode in the hash table. */ | |
1624 | opformat = (struct s390_opcode *) | |
1625 | hash_find (s390_opformat_hash, input_line_pointer); | |
07855bec NC |
1626 | if (opformat == (const struct s390_opcode *) NULL) |
1627 | { | |
1628 | as_bad (_("Unrecognized opcode format: `%s'"), input_line_pointer); | |
1629 | return; | |
1630 | } | |
a85d7ed0 NC |
1631 | input_line_pointer = s; |
1632 | expression (&exp); | |
07855bec NC |
1633 | if (exp.X_op == O_constant) |
1634 | { | |
1d6d62a4 | 1635 | if ( ( opformat->oplen == 6 |
1d6d62a4 MS |
1636 | && (addressT) exp.X_add_number < (1ULL << 48)) |
1637 | || ( opformat->oplen == 4 | |
1d6d62a4 MS |
1638 | && (addressT) exp.X_add_number < (1ULL << 32)) |
1639 | || ( opformat->oplen == 2 | |
1d6d62a4 | 1640 | && (addressT) exp.X_add_number < (1ULL << 16))) |
2132e3a3 | 1641 | md_number_to_chars ((char *) insn, exp.X_add_number, opformat->oplen); |
07855bec | 1642 | else |
07726851 | 1643 | as_bad (_("Invalid .insn format\n")); |
07855bec NC |
1644 | } |
1645 | else if (exp.X_op == O_big) | |
1646 | { | |
16a419ba NC |
1647 | if (exp.X_add_number > 0 |
1648 | && opformat->oplen == 6 | |
1649 | && generic_bignum[3] == 0) | |
07855bec | 1650 | { |
2132e3a3 AM |
1651 | md_number_to_chars ((char *) insn, generic_bignum[2], 2); |
1652 | md_number_to_chars ((char *) &insn[2], generic_bignum[1], 2); | |
1653 | md_number_to_chars ((char *) &insn[4], generic_bignum[0], 2); | |
07855bec NC |
1654 | } |
1655 | else | |
07726851 | 1656 | as_bad (_("Invalid .insn format\n")); |
07855bec NC |
1657 | } |
1658 | else | |
a85d7ed0 | 1659 | as_bad (_("second operand of .insn not a constant\n")); |
a85d7ed0 | 1660 | |
b6849f55 NC |
1661 | if (strcmp (opformat->name, "e") != 0 && *input_line_pointer++ != ',') |
1662 | as_bad (_("missing comma after insn constant\n")); | |
98d3f06f | 1663 | |
07726851 | 1664 | if ((s = strchr (input_line_pointer, '\n')) != NULL) |
a85d7ed0 | 1665 | *s = '\0'; |
b6849f55 NC |
1666 | input_line_pointer = md_gather_operands (input_line_pointer, insn, |
1667 | opformat); | |
a85d7ed0 NC |
1668 | if (s != NULL) |
1669 | *s = '\n'; | |
1670 | demand_empty_rest_of_line (); | |
1671 | } | |
1672 | ||
1673 | /* The .byte pseudo-op. This is similar to the normal .byte | |
1674 | pseudo-op, but it can also take a single ASCII string. */ | |
1675 | ||
1676 | static void | |
1677 | s390_byte (ignore) | |
1678 | int ignore ATTRIBUTE_UNUSED; | |
1679 | { | |
1680 | if (*input_line_pointer != '\"') | |
1681 | { | |
1682 | cons (1); | |
1683 | return; | |
1684 | } | |
1685 | ||
1686 | /* Gather characters. A real double quote is doubled. Unusual | |
1687 | characters are not permitted. */ | |
1688 | ++input_line_pointer; | |
1689 | while (1) | |
1690 | { | |
1691 | char c; | |
1692 | ||
1693 | c = *input_line_pointer++; | |
1694 | ||
1695 | if (c == '\"') | |
1696 | { | |
1697 | if (*input_line_pointer != '\"') | |
1698 | break; | |
1699 | ++input_line_pointer; | |
1700 | } | |
1701 | ||
1702 | FRAG_APPEND_1_CHAR (c); | |
1703 | } | |
1704 | ||
1705 | demand_empty_rest_of_line (); | |
1706 | } | |
1707 | ||
1708 | /* The .ltorg pseudo-op.This emits all literals defined since the last | |
198ce79b | 1709 | .ltorg or the invocation of gas. Literals are defined with the |
a85d7ed0 NC |
1710 | @lit suffix. */ |
1711 | ||
1712 | static void | |
1713 | s390_literals (ignore) | |
1714 | int ignore ATTRIBUTE_UNUSED; | |
1715 | { | |
1716 | struct s390_lpe *lpe; | |
1717 | ||
1718 | if (lp_sym == NULL || lpe_count == 0) | |
98d3f06f | 1719 | return; /* Nothing to be done. */ |
a85d7ed0 NC |
1720 | |
1721 | /* Emit symbol for start of literal pool. */ | |
1722 | S_SET_SEGMENT (lp_sym, now_seg); | |
1723 | S_SET_VALUE (lp_sym, (valueT) frag_now_fix ()); | |
1724 | lp_sym->sy_frag = frag_now; | |
1725 | ||
07855bec NC |
1726 | while (lpe_list) |
1727 | { | |
1728 | lpe = lpe_list; | |
1729 | lpe_list = lpe_list->next; | |
1730 | S_SET_SEGMENT (lpe->sym, now_seg); | |
1731 | S_SET_VALUE (lpe->sym, (valueT) frag_now_fix ()); | |
1732 | lpe->sym->sy_frag = frag_now; | |
1733 | ||
1734 | /* Emit literal pool entry. */ | |
1735 | if (lpe->reloc != BFD_RELOC_UNUSED) | |
1736 | { | |
198ce79b | 1737 | reloc_howto_type *reloc_howto = |
07855bec NC |
1738 | bfd_reloc_type_lookup (stdoutput, lpe->reloc); |
1739 | int size = bfd_get_reloc_size (reloc_howto); | |
1740 | char *where; | |
1741 | ||
1742 | if (size > lpe->nbytes) | |
1743 | as_bad (_("%s relocations do not fit in %d bytes"), | |
1744 | reloc_howto->name, lpe->nbytes); | |
07726851 | 1745 | where = frag_more (lpe->nbytes); |
07855bec NC |
1746 | md_number_to_chars (where, 0, size); |
1747 | fix_new_exp (frag_now, where - frag_now->fr_literal, | |
1748 | size, &lpe->ex, reloc_howto->pc_relative, lpe->reloc); | |
1749 | } | |
1750 | else | |
1751 | { | |
1752 | if (lpe->ex.X_op == O_big) | |
1753 | { | |
1754 | if (lpe->ex.X_add_number <= 0) | |
1755 | generic_floating_point_number = lpe->floatnum; | |
1756 | else | |
1757 | memcpy (generic_bignum, lpe->bignum, | |
98d3f06f | 1758 | lpe->ex.X_add_number * sizeof (LITTLENUM_TYPE)); |
07855bec NC |
1759 | } |
1760 | emit_expr (&lpe->ex, lpe->nbytes); | |
1761 | } | |
a85d7ed0 | 1762 | |
07855bec NC |
1763 | lpe->next = lpe_free_list; |
1764 | lpe_free_list = lpe; | |
1765 | } | |
a85d7ed0 NC |
1766 | lpe_list_tail = NULL; |
1767 | lp_sym = NULL; | |
1768 | lp_count++; | |
1769 | lpe_count = 0; | |
1770 | } | |
1771 | ||
1772 | /* Turn a string in input_line_pointer into a floating point constant | |
1773 | of type type, and store the appropriate bytes in *litp. The number | |
1774 | of LITTLENUMS emitted is stored in *sizep . An error message is | |
1775 | returned, or NULL on OK. */ | |
1776 | ||
1777 | char * | |
1778 | md_atof (type, litp, sizep) | |
1779 | int type; | |
1780 | char *litp; | |
1781 | int *sizep; | |
1782 | { | |
1783 | int prec; | |
1784 | LITTLENUM_TYPE words[4]; | |
1785 | char *t; | |
1786 | int i; | |
1787 | ||
1788 | switch (type) | |
1789 | { | |
1790 | case 'f': | |
1791 | prec = 2; | |
1792 | break; | |
1793 | ||
1794 | case 'd': | |
1795 | prec = 4; | |
1796 | break; | |
1797 | ||
1798 | default: | |
1799 | *sizep = 0; | |
1800 | return "bad call to md_atof"; | |
1801 | } | |
1802 | ||
1803 | t = atof_ieee (input_line_pointer, type, words); | |
1804 | if (t) | |
1805 | input_line_pointer = t; | |
1806 | ||
1807 | *sizep = prec * 2; | |
1808 | ||
1809 | for (i = 0; i < prec; i++) | |
1810 | { | |
1811 | md_number_to_chars (litp, (valueT) words[i], 2); | |
1812 | litp += 2; | |
1813 | } | |
198ce79b | 1814 | |
a85d7ed0 NC |
1815 | return NULL; |
1816 | } | |
1817 | ||
1818 | /* Align a section (I don't know why this is machine dependent). */ | |
1819 | ||
1820 | valueT | |
1821 | md_section_align (seg, addr) | |
1822 | asection *seg; | |
1823 | valueT addr; | |
1824 | { | |
1825 | int align = bfd_get_section_alignment (stdoutput, seg); | |
1826 | ||
1827 | return ((addr + (1 << align) - 1) & (-1 << align)); | |
1828 | } | |
1829 | ||
1830 | /* We don't have any form of relaxing. */ | |
1831 | ||
1832 | int | |
1833 | md_estimate_size_before_relax (fragp, seg) | |
1834 | fragS *fragp ATTRIBUTE_UNUSED; | |
1835 | asection *seg ATTRIBUTE_UNUSED; | |
1836 | { | |
1837 | abort (); | |
1838 | return 0; | |
1839 | } | |
1840 | ||
1841 | /* Convert a machine dependent frag. We never generate these. */ | |
1842 | ||
1843 | void | |
1844 | md_convert_frag (abfd, sec, fragp) | |
1845 | bfd *abfd ATTRIBUTE_UNUSED; | |
1846 | asection *sec ATTRIBUTE_UNUSED; | |
1847 | fragS *fragp ATTRIBUTE_UNUSED; | |
1848 | { | |
1849 | abort (); | |
1850 | } | |
1851 | ||
1852 | symbolS * | |
1853 | md_undefined_symbol (name) | |
1854 | char *name; | |
1855 | { | |
98d3f06f | 1856 | if (*name == '_' && *(name + 1) == 'G' |
07726851 | 1857 | && strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0) |
98d3f06f KH |
1858 | { |
1859 | if (!GOT_symbol) | |
1860 | { | |
1861 | if (symbol_find (name)) | |
1862 | as_bad (_("GOT already in symbol table")); | |
1863 | GOT_symbol = symbol_new (name, undefined_section, | |
1864 | (valueT) 0, &zero_address_frag); | |
1865 | } | |
1866 | return GOT_symbol; | |
1867 | } | |
a85d7ed0 NC |
1868 | return 0; |
1869 | } | |
1870 | ||
1871 | /* Functions concerning relocs. */ | |
1872 | ||
1873 | /* The location from which a PC relative jump should be calculated, | |
1874 | given a PC relative reloc. */ | |
1875 | ||
1876 | long | |
1877 | md_pcrel_from_section (fixp, sec) | |
1878 | fixS *fixp; | |
1879 | segT sec ATTRIBUTE_UNUSED; | |
1880 | { | |
1881 | return fixp->fx_frag->fr_address + fixp->fx_where; | |
1882 | } | |
1883 | ||
1884 | /* Here we decide which fixups can be adjusted to make them relative to | |
1885 | the beginning of the section instead of the symbol. Basically we need | |
1886 | to make sure that the dynamic relocations are done correctly, so in | |
1887 | some cases we force the original symbol to be used. */ | |
1888 | int | |
98d3f06f KH |
1889 | tc_s390_fix_adjustable (fixP) |
1890 | fixS *fixP; | |
a85d7ed0 | 1891 | { |
0a00dd48 MS |
1892 | /* Don't adjust references to merge sections. */ |
1893 | if ((S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_MERGE) != 0) | |
1894 | return 0; | |
a85d7ed0 | 1895 | /* adjust_reloc_syms doesn't know about the GOT. */ |
2a19f73f MS |
1896 | if ( fixP->fx_r_type == BFD_RELOC_16_GOTOFF |
1897 | || fixP->fx_r_type == BFD_RELOC_32_GOTOFF | |
1898 | || fixP->fx_r_type == BFD_RELOC_390_GOTOFF64 | |
1899 | || fixP->fx_r_type == BFD_RELOC_390_PLTOFF16 | |
1900 | || fixP->fx_r_type == BFD_RELOC_390_PLTOFF32 | |
1901 | || fixP->fx_r_type == BFD_RELOC_390_PLTOFF64 | |
a85d7ed0 NC |
1902 | || fixP->fx_r_type == BFD_RELOC_390_PLT16DBL |
1903 | || fixP->fx_r_type == BFD_RELOC_390_PLT32 | |
1904 | || fixP->fx_r_type == BFD_RELOC_390_PLT32DBL | |
1905 | || fixP->fx_r_type == BFD_RELOC_390_PLT64 | |
1906 | || fixP->fx_r_type == BFD_RELOC_390_GOT12 | |
933fbc29 | 1907 | || fixP->fx_r_type == BFD_RELOC_390_GOT20 |
a85d7ed0 NC |
1908 | || fixP->fx_r_type == BFD_RELOC_390_GOT16 |
1909 | || fixP->fx_r_type == BFD_RELOC_32_GOT_PCREL | |
1910 | || fixP->fx_r_type == BFD_RELOC_390_GOT64 | |
07855bec | 1911 | || fixP->fx_r_type == BFD_RELOC_390_GOTENT |
2a19f73f MS |
1912 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT12 |
1913 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT16 | |
933fbc29 | 1914 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT20 |
2a19f73f MS |
1915 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT32 |
1916 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT64 | |
1917 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLTENT | |
1971b29d MS |
1918 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LOAD |
1919 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GDCALL | |
1920 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDCALL | |
1921 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GD32 | |
1922 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GD64 | |
1923 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE12 | |
933fbc29 | 1924 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE20 |
1971b29d MS |
1925 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE32 |
1926 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE64 | |
1927 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDM32 | |
1928 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDM64 | |
1929 | || fixP->fx_r_type == BFD_RELOC_390_TLS_IE32 | |
1930 | || fixP->fx_r_type == BFD_RELOC_390_TLS_IE64 | |
1931 | || fixP->fx_r_type == BFD_RELOC_390_TLS_IEENT | |
1932 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LE32 | |
1933 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LE64 | |
1934 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDO32 | |
1935 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDO64 | |
1936 | || fixP->fx_r_type == BFD_RELOC_390_TLS_DTPMOD | |
1937 | || fixP->fx_r_type == BFD_RELOC_390_TLS_DTPOFF | |
1938 | || fixP->fx_r_type == BFD_RELOC_390_TLS_TPOFF | |
a85d7ed0 NC |
1939 | || fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT |
1940 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
1941 | return 0; | |
1942 | return 1; | |
1943 | } | |
1944 | ||
b8edc45c | 1945 | /* Return true if we must always emit a reloc for a type and false if |
c03099e6 | 1946 | there is some hope of resolving it at assembly time. */ |
b8edc45c MS |
1947 | int |
1948 | tc_s390_force_relocation (fixp) | |
1949 | struct fix *fixp; | |
1950 | { | |
1951 | /* Ensure we emit a relocation for every reference to the global | |
1952 | offset table or to the procedure link table. */ | |
1953 | switch (fixp->fx_r_type) | |
1954 | { | |
1955 | case BFD_RELOC_390_GOT12: | |
933fbc29 | 1956 | case BFD_RELOC_390_GOT20: |
b8edc45c MS |
1957 | case BFD_RELOC_32_GOT_PCREL: |
1958 | case BFD_RELOC_32_GOTOFF: | |
2a19f73f MS |
1959 | case BFD_RELOC_390_GOTOFF64: |
1960 | case BFD_RELOC_390_PLTOFF16: | |
1961 | case BFD_RELOC_390_PLTOFF32: | |
1962 | case BFD_RELOC_390_PLTOFF64: | |
b8edc45c MS |
1963 | case BFD_RELOC_390_GOTPC: |
1964 | case BFD_RELOC_390_GOT16: | |
1965 | case BFD_RELOC_390_GOTPCDBL: | |
1966 | case BFD_RELOC_390_GOT64: | |
1967 | case BFD_RELOC_390_GOTENT: | |
1968 | case BFD_RELOC_390_PLT32: | |
1969 | case BFD_RELOC_390_PLT16DBL: | |
1970 | case BFD_RELOC_390_PLT32DBL: | |
1971 | case BFD_RELOC_390_PLT64: | |
2a19f73f MS |
1972 | case BFD_RELOC_390_GOTPLT12: |
1973 | case BFD_RELOC_390_GOTPLT16: | |
933fbc29 | 1974 | case BFD_RELOC_390_GOTPLT20: |
2a19f73f MS |
1975 | case BFD_RELOC_390_GOTPLT32: |
1976 | case BFD_RELOC_390_GOTPLT64: | |
1977 | case BFD_RELOC_390_GOTPLTENT: | |
b8edc45c MS |
1978 | return 1; |
1979 | default: | |
a161fe53 | 1980 | break;; |
b8edc45c | 1981 | } |
a161fe53 | 1982 | |
ae6063d4 | 1983 | return generic_force_reloc (fixp); |
b8edc45c MS |
1984 | } |
1985 | ||
a85d7ed0 NC |
1986 | /* Apply a fixup to the object code. This is called for all the |
1987 | fixups we generated by the call to fix_new_exp, above. In the call | |
1988 | above we used a reloc code which was the largest legal reloc code | |
1989 | plus the operand index. Here we undo that to recover the operand | |
1990 | index. At this point all symbol values should be fully resolved, | |
1991 | and we attempt to completely resolve the reloc. If we can not do | |
1992 | that, we determine the correct reloc code and put it back in the | |
1993 | fixup. */ | |
1994 | ||
94f592af | 1995 | void |
55cf6793 | 1996 | md_apply_fix (fixP, valP, seg) |
94f592af NC |
1997 | fixS *fixP; |
1998 | valueT *valP; | |
a161fe53 | 1999 | segT seg ATTRIBUTE_UNUSED; |
a85d7ed0 NC |
2000 | { |
2001 | char *where; | |
98d3f06f | 2002 | valueT value = *valP; |
a85d7ed0 | 2003 | |
94f592af | 2004 | where = fixP->fx_frag->fr_literal + fixP->fx_where; |
a85d7ed0 | 2005 | |
98d3f06f | 2006 | if (fixP->fx_subsy != NULL) |
f1fc51da MS |
2007 | as_bad_where (fixP->fx_file, fixP->fx_line, |
2008 | "cannot emit relocation %s against subsy symbol %s", | |
2009 | bfd_get_reloc_code_name (fixP->fx_r_type), | |
2010 | S_GET_NAME (fixP->fx_subsy)); | |
98d3f06f KH |
2011 | |
2012 | if (fixP->fx_addsy != NULL) | |
07855bec | 2013 | { |
94f592af NC |
2014 | if (fixP->fx_pcrel) |
2015 | value += fixP->fx_frag->fr_address + fixP->fx_where; | |
07855bec NC |
2016 | } |
2017 | else | |
94f592af | 2018 | fixP->fx_done = 1; |
a85d7ed0 | 2019 | |
94f592af | 2020 | if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED) |
07855bec NC |
2021 | { |
2022 | const struct s390_operand *operand; | |
2023 | int opindex; | |
198ce79b | 2024 | |
94f592af | 2025 | opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED; |
07855bec | 2026 | operand = &s390_operands[opindex]; |
198ce79b | 2027 | |
94f592af | 2028 | if (fixP->fx_done) |
07855bec NC |
2029 | { |
2030 | /* Insert the fully resolved operand value. */ | |
2132e3a3 AM |
2031 | s390_insert_operand ((unsigned char *) where, operand, |
2032 | (offsetT) value, fixP->fx_file, fixP->fx_line); | |
94f592af | 2033 | return; |
07855bec | 2034 | } |
198ce79b | 2035 | |
07855bec NC |
2036 | /* Determine a BFD reloc value based on the operand information. |
2037 | We are only prepared to turn a few of the operands into | |
2038 | relocs. */ | |
94f592af | 2039 | fixP->fx_offset = value; |
07855bec NC |
2040 | if (operand->bits == 12 && operand->shift == 20) |
2041 | { | |
94f592af NC |
2042 | fixP->fx_size = 2; |
2043 | fixP->fx_where += 2; | |
2044 | fixP->fx_r_type = BFD_RELOC_390_12; | |
07855bec NC |
2045 | } |
2046 | else if (operand->bits == 12 && operand->shift == 36) | |
2047 | { | |
94f592af NC |
2048 | fixP->fx_size = 2; |
2049 | fixP->fx_where += 4; | |
2050 | fixP->fx_r_type = BFD_RELOC_390_12; | |
07855bec | 2051 | } |
933fbc29 MS |
2052 | else if (operand->bits == 20 && operand->shift == 20) |
2053 | { | |
2054 | fixP->fx_size = 2; | |
2055 | fixP->fx_where += 2; | |
2056 | fixP->fx_r_type = BFD_RELOC_390_20; | |
2057 | } | |
07855bec NC |
2058 | else if (operand->bits == 8 && operand->shift == 8) |
2059 | { | |
94f592af NC |
2060 | fixP->fx_size = 1; |
2061 | fixP->fx_where += 1; | |
2062 | fixP->fx_r_type = BFD_RELOC_8; | |
07855bec NC |
2063 | } |
2064 | else if (operand->bits == 16 && operand->shift == 16) | |
2065 | { | |
94f592af NC |
2066 | fixP->fx_size = 2; |
2067 | fixP->fx_where += 2; | |
07855bec NC |
2068 | if (operand->flags & S390_OPERAND_PCREL) |
2069 | { | |
94f592af NC |
2070 | fixP->fx_r_type = BFD_RELOC_390_PC16DBL; |
2071 | fixP->fx_offset += 2; | |
07855bec NC |
2072 | } |
2073 | else | |
94f592af | 2074 | fixP->fx_r_type = BFD_RELOC_16; |
07855bec | 2075 | } |
16a419ba NC |
2076 | else if (operand->bits == 32 && operand->shift == 16 |
2077 | && (operand->flags & S390_OPERAND_PCREL)) | |
07855bec | 2078 | { |
94f592af NC |
2079 | fixP->fx_size = 4; |
2080 | fixP->fx_where += 2; | |
2081 | fixP->fx_offset += 2; | |
2082 | fixP->fx_r_type = BFD_RELOC_390_PC32DBL; | |
07855bec | 2083 | } |
a85d7ed0 | 2084 | else |
07855bec NC |
2085 | { |
2086 | char *sfile; | |
2087 | unsigned int sline; | |
198ce79b | 2088 | |
07855bec NC |
2089 | /* Use expr_symbol_where to see if this is an expression |
2090 | symbol. */ | |
94f592af NC |
2091 | if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline)) |
2092 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
07855bec NC |
2093 | _("unresolved expression that must be resolved")); |
2094 | else | |
94f592af | 2095 | as_bad_where (fixP->fx_file, fixP->fx_line, |
07855bec | 2096 | _("unsupported relocation type")); |
94f592af NC |
2097 | fixP->fx_done = 1; |
2098 | return; | |
07855bec | 2099 | } |
a85d7ed0 | 2100 | } |
07855bec NC |
2101 | else |
2102 | { | |
94f592af | 2103 | switch (fixP->fx_r_type) |
07855bec NC |
2104 | { |
2105 | case BFD_RELOC_8: | |
94f592af | 2106 | if (fixP->fx_pcrel) |
07855bec | 2107 | abort (); |
94f592af | 2108 | if (fixP->fx_done) |
07855bec NC |
2109 | md_number_to_chars (where, value, 1); |
2110 | break; | |
2111 | case BFD_RELOC_390_12: | |
2112 | case BFD_RELOC_390_GOT12: | |
2a19f73f | 2113 | case BFD_RELOC_390_GOTPLT12: |
94f592af | 2114 | if (fixP->fx_done) |
07855bec NC |
2115 | { |
2116 | unsigned short mop; | |
2117 | ||
2118 | mop = bfd_getb16 ((unsigned char *) where); | |
2119 | mop |= (unsigned short) (value & 0xfff); | |
2120 | bfd_putb16 ((bfd_vma) mop, (unsigned char *) where); | |
198ce79b | 2121 | } |
07855bec | 2122 | break; |
198ce79b | 2123 | |
933fbc29 MS |
2124 | case BFD_RELOC_390_20: |
2125 | case BFD_RELOC_390_GOT20: | |
2126 | case BFD_RELOC_390_GOTPLT20: | |
2127 | if (fixP->fx_done) | |
2128 | { | |
2129 | unsigned int mop; | |
2130 | mop = bfd_getb32 ((unsigned char *) where); | |
2131 | mop |= (unsigned int) ((value & 0xfff) << 8 | | |
2132 | (value & 0xff000) >> 12); | |
2133 | bfd_putb32 ((bfd_vma) mop, (unsigned char *) where); | |
2134 | } | |
2135 | break; | |
2136 | ||
07855bec NC |
2137 | case BFD_RELOC_16: |
2138 | case BFD_RELOC_GPREL16: | |
2139 | case BFD_RELOC_16_GOT_PCREL: | |
2140 | case BFD_RELOC_16_GOTOFF: | |
94f592af NC |
2141 | if (fixP->fx_pcrel) |
2142 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
07855bec | 2143 | "cannot emit PC relative %s relocation%s%s", |
94f592af NC |
2144 | bfd_get_reloc_code_name (fixP->fx_r_type), |
2145 | fixP->fx_addsy != NULL ? " against " : "", | |
2146 | (fixP->fx_addsy != NULL | |
2147 | ? S_GET_NAME (fixP->fx_addsy) | |
07855bec | 2148 | : "")); |
94f592af | 2149 | if (fixP->fx_done) |
07855bec NC |
2150 | md_number_to_chars (where, value, 2); |
2151 | break; | |
2152 | case BFD_RELOC_390_GOT16: | |
2a19f73f MS |
2153 | case BFD_RELOC_390_PLTOFF16: |
2154 | case BFD_RELOC_390_GOTPLT16: | |
94f592af | 2155 | if (fixP->fx_done) |
07855bec NC |
2156 | md_number_to_chars (where, value, 2); |
2157 | break; | |
2158 | case BFD_RELOC_390_PC16DBL: | |
2159 | case BFD_RELOC_390_PLT16DBL: | |
2160 | value += 2; | |
94f592af | 2161 | if (fixP->fx_done) |
07855bec NC |
2162 | md_number_to_chars (where, (offsetT) value >> 1, 2); |
2163 | break; | |
2164 | ||
2165 | case BFD_RELOC_32: | |
94f592af NC |
2166 | if (fixP->fx_pcrel) |
2167 | fixP->fx_r_type = BFD_RELOC_32_PCREL; | |
07855bec | 2168 | else |
94f592af NC |
2169 | fixP->fx_r_type = BFD_RELOC_32; |
2170 | if (fixP->fx_done) | |
07855bec NC |
2171 | md_number_to_chars (where, value, 4); |
2172 | break; | |
2173 | case BFD_RELOC_32_PCREL: | |
2174 | case BFD_RELOC_32_BASEREL: | |
94f592af NC |
2175 | fixP->fx_r_type = BFD_RELOC_32_PCREL; |
2176 | if (fixP->fx_done) | |
07855bec NC |
2177 | md_number_to_chars (where, value, 4); |
2178 | break; | |
2179 | case BFD_RELOC_32_GOT_PCREL: | |
2a19f73f | 2180 | case BFD_RELOC_390_PLTOFF32: |
07855bec | 2181 | case BFD_RELOC_390_PLT32: |
2a19f73f | 2182 | case BFD_RELOC_390_GOTPLT32: |
94f592af | 2183 | if (fixP->fx_done) |
07855bec NC |
2184 | md_number_to_chars (where, value, 4); |
2185 | break; | |
2186 | case BFD_RELOC_390_PC32DBL: | |
2187 | case BFD_RELOC_390_PLT32DBL: | |
2188 | case BFD_RELOC_390_GOTPCDBL: | |
2189 | case BFD_RELOC_390_GOTENT: | |
2a19f73f | 2190 | case BFD_RELOC_390_GOTPLTENT: |
07855bec | 2191 | value += 2; |
94f592af | 2192 | if (fixP->fx_done) |
07855bec NC |
2193 | md_number_to_chars (where, (offsetT) value >> 1, 4); |
2194 | break; | |
2195 | ||
2196 | case BFD_RELOC_32_GOTOFF: | |
94f592af | 2197 | if (fixP->fx_done) |
07726851 | 2198 | md_number_to_chars (where, value, sizeof (int)); |
07855bec NC |
2199 | break; |
2200 | ||
2a19f73f MS |
2201 | case BFD_RELOC_390_GOTOFF64: |
2202 | if (fixP->fx_done) | |
2203 | md_number_to_chars (where, value, 8); | |
2204 | break; | |
2205 | ||
07855bec | 2206 | case BFD_RELOC_390_GOT64: |
2a19f73f | 2207 | case BFD_RELOC_390_PLTOFF64: |
07855bec | 2208 | case BFD_RELOC_390_PLT64: |
2a19f73f | 2209 | case BFD_RELOC_390_GOTPLT64: |
94f592af | 2210 | if (fixP->fx_done) |
07855bec NC |
2211 | md_number_to_chars (where, value, 8); |
2212 | break; | |
2213 | ||
2214 | case BFD_RELOC_64: | |
94f592af NC |
2215 | if (fixP->fx_pcrel) |
2216 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
07855bec | 2217 | else |
94f592af NC |
2218 | fixP->fx_r_type = BFD_RELOC_64; |
2219 | if (fixP->fx_done) | |
07855bec NC |
2220 | md_number_to_chars (where, value, 8); |
2221 | break; | |
2222 | ||
2223 | case BFD_RELOC_64_PCREL: | |
94f592af NC |
2224 | fixP->fx_r_type = BFD_RELOC_64_PCREL; |
2225 | if (fixP->fx_done) | |
07855bec NC |
2226 | md_number_to_chars (where, value, 8); |
2227 | break; | |
2228 | ||
2229 | case BFD_RELOC_VTABLE_INHERIT: | |
2230 | case BFD_RELOC_VTABLE_ENTRY: | |
94f592af NC |
2231 | fixP->fx_done = 0; |
2232 | return; | |
07855bec | 2233 | |
1971b29d MS |
2234 | case BFD_RELOC_390_TLS_LOAD: |
2235 | case BFD_RELOC_390_TLS_GDCALL: | |
2236 | case BFD_RELOC_390_TLS_LDCALL: | |
2237 | case BFD_RELOC_390_TLS_GD32: | |
2238 | case BFD_RELOC_390_TLS_GD64: | |
2239 | case BFD_RELOC_390_TLS_GOTIE12: | |
933fbc29 | 2240 | case BFD_RELOC_390_TLS_GOTIE20: |
1971b29d MS |
2241 | case BFD_RELOC_390_TLS_GOTIE32: |
2242 | case BFD_RELOC_390_TLS_GOTIE64: | |
2243 | case BFD_RELOC_390_TLS_LDM32: | |
2244 | case BFD_RELOC_390_TLS_LDM64: | |
2245 | case BFD_RELOC_390_TLS_IE32: | |
2246 | case BFD_RELOC_390_TLS_IE64: | |
2247 | case BFD_RELOC_390_TLS_LE32: | |
2248 | case BFD_RELOC_390_TLS_LE64: | |
2249 | case BFD_RELOC_390_TLS_LDO32: | |
2250 | case BFD_RELOC_390_TLS_LDO64: | |
2251 | case BFD_RELOC_390_TLS_DTPMOD: | |
2252 | case BFD_RELOC_390_TLS_DTPOFF: | |
2253 | case BFD_RELOC_390_TLS_TPOFF: | |
7c1d0959 | 2254 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
1971b29d MS |
2255 | /* Fully resolved at link time. */ |
2256 | break; | |
2257 | case BFD_RELOC_390_TLS_IEENT: | |
2258 | /* Fully resolved at link time. */ | |
7c1d0959 | 2259 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
1971b29d MS |
2260 | value += 2; |
2261 | break; | |
2262 | ||
07855bec NC |
2263 | default: |
2264 | { | |
94f592af | 2265 | const char *reloc_name = bfd_get_reloc_code_name (fixP->fx_r_type); |
198ce79b | 2266 | |
07855bec NC |
2267 | if (reloc_name != NULL) |
2268 | fprintf (stderr, "Gas failure, reloc type %s\n", reloc_name); | |
2269 | else | |
94f592af | 2270 | fprintf (stderr, "Gas failure, reloc type #%i\n", fixP->fx_r_type); |
07855bec NC |
2271 | fflush (stderr); |
2272 | abort (); | |
2273 | } | |
2274 | } | |
a85d7ed0 | 2275 | |
94f592af | 2276 | fixP->fx_offset = value; |
07855bec | 2277 | } |
a85d7ed0 NC |
2278 | } |
2279 | ||
2280 | /* Generate a reloc for a fixup. */ | |
2281 | ||
2282 | arelent * | |
2283 | tc_gen_reloc (seg, fixp) | |
2284 | asection *seg ATTRIBUTE_UNUSED; | |
2285 | fixS *fixp; | |
2286 | { | |
2287 | bfd_reloc_code_real_type code; | |
2288 | arelent *reloc; | |
2289 | ||
2290 | code = fixp->fx_r_type; | |
07855bec NC |
2291 | if (GOT_symbol && fixp->fx_addsy == GOT_symbol) |
2292 | { | |
16a419ba NC |
2293 | if ( (s390_arch_size == 32 && code == BFD_RELOC_32_PCREL) |
2294 | || (s390_arch_size == 64 && code == BFD_RELOC_64_PCREL)) | |
07855bec NC |
2295 | code = BFD_RELOC_390_GOTPC; |
2296 | if (code == BFD_RELOC_390_PC32DBL) | |
2297 | code = BFD_RELOC_390_GOTPCDBL; | |
2298 | } | |
a85d7ed0 NC |
2299 | |
2300 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
2301 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); | |
2302 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
2303 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
2304 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
2305 | if (reloc->howto == NULL) | |
2306 | { | |
2307 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
98d3f06f KH |
2308 | _("cannot represent relocation type %s"), |
2309 | bfd_get_reloc_code_name (code)); | |
a85d7ed0 NC |
2310 | /* Set howto to a garbage value so that we can keep going. */ |
2311 | reloc->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); | |
2312 | assert (reloc->howto != NULL); | |
2313 | } | |
2314 | reloc->addend = fixp->fx_offset; | |
2315 | ||
2316 | return reloc; | |
2317 | } | |
75e21f08 JJ |
2318 | |
2319 | void | |
2320 | s390_cfi_frame_initial_instructions () | |
2321 | { | |
2322 | cfi_add_CFA_def_cfa (15, s390_arch_size == 64 ? 160 : 96); | |
2323 | } | |
2324 | ||
2325 | int | |
1df69f4f | 2326 | tc_s390_regname_to_dw2regnum (char *regname) |
75e21f08 JJ |
2327 | { |
2328 | int regnum = -1; | |
2329 | ||
2330 | if (regname[0] != 'c' && regname[0] != 'a') | |
2331 | { | |
2332 | regnum = reg_name_search (pre_defined_registers, REG_NAME_CNT, regname); | |
2333 | if (regname[0] == 'f' && regnum != -1) | |
2334 | regnum += 16; | |
2335 | } | |
2336 | else if (strcmp (regname, "ap") == 0) | |
2337 | regnum = 32; | |
2338 | else if (strcmp (regname, "cc") == 0) | |
2339 | regnum = 33; | |
2340 | return regnum; | |
2341 | } |