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a85d7ed0 | 1 | /* tc-s390.c -- Assemble for the S390 |
4b95cf5c | 2 | Copyright (C) 2000-2014 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 | |
ec2655a6 | 9 | the Free Software Foundation; either version 3, or (at your option) |
a85d7ed0 NC |
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 | |
4b4da160 NC |
19 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
20 | 02110-1301, USA. */ | |
a85d7ed0 | 21 | |
a85d7ed0 | 22 | #include "as.h" |
3882b010 | 23 | #include "safe-ctype.h" |
a85d7ed0 NC |
24 | #include "subsegs.h" |
25 | #include "struc-symbol.h" | |
a161fe53 | 26 | #include "dwarf2dbg.h" |
75e21f08 | 27 | #include "dw2gencfi.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 | ||
1e8766d7 AK |
40 | /* If no -march option was given default to the highest available CPU. |
41 | Since with S/390 a newer CPU always supports everything from its | |
42 | predecessors this will accept every valid asm input. */ | |
43 | static unsigned int current_cpu = S390_OPCODE_MAXCPU - 1; | |
37a58793 | 44 | static unsigned int current_mode_mask = 0; |
a85d7ed0 | 45 | |
1dd53816 AK |
46 | /* Set to TRUE if the highgprs flag in the ELF header needs to be set |
47 | for the output file. */ | |
48 | static bfd_boolean set_highgprs_p = FALSE; | |
49 | ||
b34976b6 | 50 | /* Whether to use user friendly register names. Default is TRUE. */ |
a85d7ed0 | 51 | #ifndef TARGET_REG_NAMES_P |
b34976b6 | 52 | #define TARGET_REG_NAMES_P TRUE |
a85d7ed0 NC |
53 | #endif |
54 | ||
b34976b6 | 55 | static bfd_boolean reg_names_p = TARGET_REG_NAMES_P; |
a85d7ed0 | 56 | |
16a419ba | 57 | /* Set to TRUE if we want to warn about zero base/index registers. */ |
b34976b6 | 58 | static bfd_boolean warn_areg_zero = FALSE; |
16a419ba | 59 | |
a85d7ed0 NC |
60 | /* Generic assembler global variables which must be defined by all |
61 | targets. */ | |
62 | ||
63 | const char comment_chars[] = "#"; | |
64 | ||
65 | /* Characters which start a comment at the beginning of a line. */ | |
66 | const char line_comment_chars[] = "#"; | |
67 | ||
68 | /* Characters which may be used to separate multiple commands on a | |
69 | single line. */ | |
70 | const char line_separator_chars[] = ";"; | |
71 | ||
72 | /* Characters which are used to indicate an exponent in a floating | |
73 | point number. */ | |
74 | const char EXP_CHARS[] = "eE"; | |
75 | ||
76 | /* Characters which mean that a number is a floating point constant, | |
77 | as in 0d1.0. */ | |
78 | const char FLT_CHARS[] = "dD"; | |
79 | ||
75e21f08 JJ |
80 | /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */ |
81 | int s390_cie_data_alignment; | |
82 | ||
a85d7ed0 NC |
83 | /* The target specific pseudo-ops which we support. */ |
84 | ||
85 | /* Define the prototypes for the pseudo-ops */ | |
5a49b8ac AM |
86 | static void s390_byte (int); |
87 | static void s390_elf_cons (int); | |
88 | static void s390_bss (int); | |
89 | static void s390_insn (int); | |
90 | static void s390_literals (int); | |
902cc293 | 91 | static void s390_machine (int); |
1dd53816 | 92 | static void s390_machinemode (int); |
a85d7ed0 NC |
93 | |
94 | const pseudo_typeS md_pseudo_table[] = | |
95 | { | |
1dd53816 | 96 | { "align", s_align_bytes, 0 }, |
98d3f06f | 97 | /* Pseudo-ops which must be defined. */ |
1dd53816 AK |
98 | { "bss", s390_bss, 0 }, |
99 | { "insn", s390_insn, 0 }, | |
a85d7ed0 | 100 | /* Pseudo-ops which must be overridden. */ |
1dd53816 AK |
101 | { "byte", s390_byte, 0 }, |
102 | { "short", s390_elf_cons, 2 }, | |
103 | { "long", s390_elf_cons, 4 }, | |
104 | { "quad", s390_elf_cons, 8 }, | |
105 | { "ltorg", s390_literals, 0 }, | |
106 | { "string", stringer, 8 + 1 }, | |
107 | { "machine", s390_machine, 0 }, | |
108 | { "machinemode", s390_machinemode, 0 }, | |
109 | { NULL, NULL, 0 } | |
a85d7ed0 NC |
110 | }; |
111 | ||
112 | ||
113 | /* Structure to hold information about predefined registers. */ | |
114 | struct pd_reg | |
115 | { | |
116 | char *name; | |
117 | int value; | |
118 | }; | |
119 | ||
120 | /* List of registers that are pre-defined: | |
121 | ||
122 | Each access register has a predefined name of the form: | |
123 | a<reg_num> which has the value <reg_num>. | |
124 | ||
125 | Each control register has a predefined name of the form: | |
126 | c<reg_num> which has the value <reg_num>. | |
127 | ||
128 | Each general register has a predefined name of the form: | |
129 | r<reg_num> which has the value <reg_num>. | |
130 | ||
131 | Each floating point register a has predefined name of the form: | |
132 | f<reg_num> which has the value <reg_num>. | |
133 | ||
134 | There are individual registers as well: | |
135 | sp has the value 15 | |
136 | lit has the value 12 | |
137 | ||
98d3f06f | 138 | The table is sorted. Suitable for searching by a binary search. */ |
a85d7ed0 NC |
139 | |
140 | static const struct pd_reg pre_defined_registers[] = | |
141 | { | |
142 | { "a0", 0 }, /* Access registers */ | |
143 | { "a1", 1 }, | |
144 | { "a10", 10 }, | |
145 | { "a11", 11 }, | |
146 | { "a12", 12 }, | |
147 | { "a13", 13 }, | |
148 | { "a14", 14 }, | |
149 | { "a15", 15 }, | |
150 | { "a2", 2 }, | |
151 | { "a3", 3 }, | |
152 | { "a4", 4 }, | |
153 | { "a5", 5 }, | |
154 | { "a6", 6 }, | |
155 | { "a7", 7 }, | |
156 | { "a8", 8 }, | |
157 | { "a9", 9 }, | |
158 | ||
159 | { "c0", 0 }, /* Control registers */ | |
160 | { "c1", 1 }, | |
161 | { "c10", 10 }, | |
162 | { "c11", 11 }, | |
163 | { "c12", 12 }, | |
164 | { "c13", 13 }, | |
165 | { "c14", 14 }, | |
166 | { "c15", 15 }, | |
167 | { "c2", 2 }, | |
168 | { "c3", 3 }, | |
169 | { "c4", 4 }, | |
170 | { "c5", 5 }, | |
171 | { "c6", 6 }, | |
172 | { "c7", 7 }, | |
173 | { "c8", 8 }, | |
174 | { "c9", 9 }, | |
175 | ||
176 | { "f0", 0 }, /* Floating point registers */ | |
198ce79b AJ |
177 | { "f1", 1 }, |
178 | { "f10", 10 }, | |
179 | { "f11", 11 }, | |
180 | { "f12", 12 }, | |
181 | { "f13", 13 }, | |
182 | { "f14", 14 }, | |
183 | { "f15", 15 }, | |
184 | { "f2", 2 }, | |
185 | { "f3", 3 }, | |
186 | { "f4", 4 }, | |
187 | { "f5", 5 }, | |
188 | { "f6", 6 }, | |
189 | { "f7", 7 }, | |
190 | { "f8", 8 }, | |
191 | { "f9", 9 }, | |
a85d7ed0 NC |
192 | |
193 | { "lit", 13 }, /* Pointer to literal pool */ | |
194 | ||
195 | { "r0", 0 }, /* General purpose registers */ | |
196 | { "r1", 1 }, | |
197 | { "r10", 10 }, | |
198 | { "r11", 11 }, | |
199 | { "r12", 12 }, | |
200 | { "r13", 13 }, | |
201 | { "r14", 14 }, | |
202 | { "r15", 15 }, | |
203 | { "r2", 2 }, | |
204 | { "r3", 3 }, | |
205 | { "r4", 4 }, | |
206 | { "r5", 5 }, | |
207 | { "r6", 6 }, | |
208 | { "r7", 7 }, | |
209 | { "r8", 8 }, | |
210 | { "r9", 9 }, | |
211 | ||
212 | { "sp", 15 }, /* Stack pointer */ | |
213 | ||
214 | }; | |
215 | ||
07726851 | 216 | #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg)) |
a85d7ed0 NC |
217 | |
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 | |
5a49b8ac | 222 | reg_name_search (const struct pd_reg *regs, int regcount, const char *name) |
a85d7ed0 NC |
223 | { |
224 | int middle, low, high; | |
225 | int cmp; | |
226 | ||
227 | low = 0; | |
228 | high = regcount - 1; | |
229 | ||
230 | do | |
231 | { | |
232 | middle = (low + high) / 2; | |
233 | cmp = strcasecmp (name, regs[middle].name); | |
234 | if (cmp < 0) | |
235 | high = middle - 1; | |
236 | else if (cmp > 0) | |
237 | low = middle + 1; | |
238 | else | |
239 | return regs[middle].value; | |
240 | } | |
241 | while (low <= high); | |
242 | ||
243 | return -1; | |
244 | } | |
245 | ||
246 | ||
247 | /* | |
248 | * Summary of register_name(). | |
249 | * | |
250 | * in: Input_line_pointer points to 1st char of operand. | |
251 | * | |
252 | * out: A expressionS. | |
253 | * The operand may have been a register: in this case, X_op == O_register, | |
254 | * X_add_number is set to the register number, and truth is returned. | |
255 | * Input_line_pointer->(next non-blank) char after operand, or is in its | |
256 | * original state. | |
257 | */ | |
258 | ||
b34976b6 | 259 | static bfd_boolean |
5a49b8ac | 260 | register_name (expressionS *expressionP) |
a85d7ed0 NC |
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. */ | |
902cc293 | 303 | static struct hash_control *s390_opcode_hash = NULL; |
a85d7ed0 NC |
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 | |
2b4f075a HPN |
311 | int md_short_jump_size = 4; |
312 | int md_long_jump_size = 4; | |
a85d7ed0 NC |
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 | 323 | static void |
5a49b8ac | 324 | init_default_arch (void) |
a85d7ed0 | 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 | |
20203fb9 | 337 | as_fatal (_("Invalid default architecture, broken assembler.")); |
df9a398f MS |
338 | |
339 | if (current_mode_mask == 0) | |
340 | { | |
1e8766d7 AK |
341 | /* Default to z/Architecture mode if the CPU supports it. */ |
342 | if (current_cpu < S390_OPCODE_Z900) | |
df9a398f MS |
343 | current_mode_mask = 1 << S390_OPCODE_ESA; |
344 | else | |
345 | current_mode_mask = 1 << S390_OPCODE_ZARCH; | |
346 | } | |
a85d7ed0 NC |
347 | } |
348 | ||
349 | /* Called by TARGET_FORMAT. */ | |
350 | const char * | |
5a49b8ac | 351 | s390_target_format (void) |
a85d7ed0 NC |
352 | { |
353 | /* We don't get a chance to initialize anything before we're called, | |
354 | so handle that now. */ | |
2ebb4b88 | 355 | init_default_arch (); |
a85d7ed0 NC |
356 | |
357 | return s390_arch_size == 64 ? "elf64-s390" : "elf32-s390"; | |
358 | } | |
359 | ||
902cc293 AK |
360 | /* Map a CPU string as given with -march= or .machine to the |
361 | respective enum s390_opcode_cpu_val value. 0xffffffff is returned | |
362 | in case of an error. */ | |
363 | ||
364 | static unsigned int | |
365 | s390_parse_cpu (char *arg) | |
366 | { | |
367 | if (strcmp (arg, "g5") == 0) | |
368 | return S390_OPCODE_G5; | |
369 | else if (strcmp (arg, "g6") == 0) | |
370 | return S390_OPCODE_G6; | |
371 | else if (strcmp (arg, "z900") == 0) | |
372 | return S390_OPCODE_Z900; | |
373 | else if (strcmp (arg, "z990") == 0) | |
374 | return S390_OPCODE_Z990; | |
375 | else if (strcmp (arg, "z9-109") == 0) | |
376 | return S390_OPCODE_Z9_109; | |
377 | else if (strcmp (arg, "z9-ec") == 0) | |
378 | return S390_OPCODE_Z9_EC; | |
379 | else if (strcmp (arg, "z10") == 0) | |
380 | return S390_OPCODE_Z10; | |
381 | else if (strcmp (arg, "z196") == 0) | |
382 | return S390_OPCODE_Z196; | |
cfc72779 AK |
383 | else if (strcmp (arg, "zEC12") == 0) |
384 | return S390_OPCODE_ZEC12; | |
902cc293 AK |
385 | else if (strcmp (arg, "all") == 0) |
386 | return S390_OPCODE_MAXCPU - 1; | |
387 | else | |
388 | return -1; | |
389 | } | |
390 | ||
a85d7ed0 | 391 | int |
5a49b8ac | 392 | md_parse_option (int c, char *arg) |
a85d7ed0 | 393 | { |
07855bec NC |
394 | switch (c) |
395 | { | |
396 | /* -k: Ignore for FreeBSD compatibility. */ | |
397 | case 'k': | |
398 | break; | |
399 | case 'm': | |
400 | if (arg != NULL && strcmp (arg, "regnames") == 0) | |
b34976b6 | 401 | reg_names_p = TRUE; |
198ce79b | 402 | |
07855bec | 403 | else if (arg != NULL && strcmp (arg, "no-regnames") == 0) |
b34976b6 | 404 | reg_names_p = FALSE; |
198ce79b | 405 | |
16a419ba NC |
406 | else if (arg != NULL && strcmp (arg, "warn-areg-zero") == 0) |
407 | warn_areg_zero = TRUE; | |
408 | ||
ff0fb565 | 409 | else if (arg != NULL && strcmp (arg, "31") == 0) |
75504fed | 410 | s390_arch_size = 32; |
ff0fb565 MS |
411 | |
412 | else if (arg != NULL && strcmp (arg, "64") == 0) | |
413 | s390_arch_size = 64; | |
414 | ||
37a58793 MS |
415 | else if (arg != NULL && strcmp (arg, "esa") == 0) |
416 | current_mode_mask = 1 << S390_OPCODE_ESA; | |
417 | ||
418 | else if (arg != NULL && strcmp (arg, "zarch") == 0) | |
1dd53816 AK |
419 | { |
420 | if (s390_arch_size == 32) | |
421 | set_highgprs_p = TRUE; | |
422 | current_mode_mask = 1 << S390_OPCODE_ZARCH; | |
423 | } | |
37a58793 MS |
424 | |
425 | else if (arg != NULL && strncmp (arg, "arch=", 5) == 0) | |
426 | { | |
902cc293 AK |
427 | current_cpu = s390_parse_cpu (arg + 5); |
428 | ||
429 | if (current_cpu == (unsigned int)-1) | |
37a58793 MS |
430 | { |
431 | as_bad (_("invalid switch -m%s"), arg); | |
432 | return 0; | |
433 | } | |
434 | } | |
435 | ||
07855bec NC |
436 | else |
437 | { | |
438 | as_bad (_("invalid switch -m%s"), arg); | |
439 | return 0; | |
440 | } | |
441 | break; | |
198ce79b | 442 | |
07855bec | 443 | case 'A': |
67c1ffbe | 444 | /* Option -A is deprecated. Still available for compatibility. */ |
07855bec | 445 | if (arg != NULL && strcmp (arg, "esa") == 0) |
37a58793 | 446 | current_cpu = S390_OPCODE_G5; |
07855bec | 447 | else if (arg != NULL && strcmp (arg, "esame") == 0) |
37a58793 | 448 | current_cpu = S390_OPCODE_Z900; |
07855bec | 449 | else |
20203fb9 | 450 | as_bad (_("invalid architecture -A%s"), arg); |
07855bec NC |
451 | break; |
452 | ||
453 | /* -V: SVR4 argument to print version ID. */ | |
454 | case 'V': | |
455 | print_version_id (); | |
456 | break; | |
198ce79b | 457 | |
07855bec NC |
458 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section |
459 | should be emitted or not. FIXME: Not implemented. */ | |
460 | case 'Q': | |
461 | break; | |
198ce79b | 462 | |
07855bec NC |
463 | default: |
464 | return 0; | |
465 | } | |
198ce79b | 466 | |
a85d7ed0 NC |
467 | return 1; |
468 | } | |
469 | ||
470 | void | |
5a49b8ac | 471 | md_show_usage (FILE *stream) |
a85d7ed0 | 472 | { |
07855bec | 473 | fprintf (stream, _("\ |
16a419ba NC |
474 | S390 options:\n\ |
475 | -mregnames Allow symbolic names for registers\n\ | |
476 | -mwarn-areg-zero Warn about zero base/index registers\n\ | |
ff0fb565 MS |
477 | -mno-regnames Do not allow symbolic names for registers\n\ |
478 | -m31 Set file format to 31 bit format\n\ | |
479 | -m64 Set file format to 64 bit format\n")); | |
07855bec | 480 | fprintf (stream, _("\ |
16a419ba NC |
481 | -V print assembler version number\n\ |
482 | -Qy, -Qn ignored\n")); | |
a85d7ed0 NC |
483 | } |
484 | ||
902cc293 AK |
485 | /* Generate the hash table mapping mnemonics to struct s390_opcode. |
486 | This table is built at startup and whenever the CPU level is | |
487 | changed using .machine. */ | |
a85d7ed0 | 488 | |
902cc293 AK |
489 | static void |
490 | s390_setup_opcodes (void) | |
a85d7ed0 | 491 | { |
ed9e98c2 | 492 | const struct s390_opcode *op; |
a85d7ed0 | 493 | const struct s390_opcode *op_end; |
b34976b6 | 494 | bfd_boolean dup_insn = FALSE; |
a85d7ed0 NC |
495 | const char *retval; |
496 | ||
902cc293 AK |
497 | if (s390_opcode_hash != NULL) |
498 | hash_die (s390_opcode_hash); | |
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++) |
e6181b6a MS |
505 | { |
506 | while (op < op_end - 1 && strcmp(op->name, op[1].name) == 0) | |
507 | { | |
508 | if (op->min_cpu <= current_cpu && (op->modes & current_mode_mask)) | |
509 | break; | |
933fbc29 | 510 | op++; |
e6181b6a | 511 | } |
be7a250d AK |
512 | |
513 | if (op->min_cpu <= current_cpu && (op->modes & current_mode_mask)) | |
514 | { | |
515 | retval = hash_insert (s390_opcode_hash, op->name, (void *) op); | |
516 | if (retval != (const char *) NULL) | |
517 | { | |
518 | as_bad (_("Internal assembler error for instruction %s"), | |
519 | op->name); | |
520 | dup_insn = TRUE; | |
521 | } | |
e6181b6a | 522 | } |
be7a250d | 523 | |
e6181b6a MS |
524 | while (op < op_end - 1 && strcmp (op->name, op[1].name) == 0) |
525 | op++; | |
933fbc29 | 526 | } |
07855bec | 527 | |
a85d7ed0 NC |
528 | if (dup_insn) |
529 | abort (); | |
902cc293 AK |
530 | } |
531 | ||
532 | /* This function is called when the assembler starts up. It is called | |
533 | after the options have been parsed and the output file has been | |
534 | opened. */ | |
535 | ||
536 | void | |
537 | md_begin (void) | |
538 | { | |
ed9e98c2 | 539 | const struct s390_opcode *op; |
902cc293 | 540 | const struct s390_opcode *op_end; |
902cc293 AK |
541 | const char *retval; |
542 | ||
543 | /* Give a warning if the combination -m64-bit and -Aesa is used. */ | |
544 | if (s390_arch_size == 64 && current_cpu < S390_OPCODE_Z900) | |
545 | as_warn (_("The 64 bit file format is used without esame instructions.")); | |
546 | ||
547 | s390_cie_data_alignment = -s390_arch_size / 8; | |
548 | ||
549 | /* Set the ELF flags if desired. */ | |
550 | if (s390_flags) | |
551 | bfd_set_private_flags (stdoutput, s390_flags); | |
552 | ||
553 | /* Insert the opcode formats into a hash table. */ | |
554 | s390_opformat_hash = hash_new (); | |
555 | ||
556 | op_end = s390_opformats + s390_num_opformats; | |
557 | for (op = s390_opformats; op < op_end; op++) | |
558 | { | |
559 | retval = hash_insert (s390_opformat_hash, op->name, (void *) op); | |
560 | if (retval != (const char *) NULL) | |
8e1adb8d NC |
561 | as_bad (_("Internal assembler error for instruction format %s"), |
562 | op->name); | |
902cc293 AK |
563 | } |
564 | ||
565 | s390_setup_opcodes (); | |
a85d7ed0 NC |
566 | |
567 | record_alignment (text_section, 2); | |
568 | record_alignment (data_section, 2); | |
569 | record_alignment (bss_section, 2); | |
a85d7ed0 NC |
570 | } |
571 | ||
572 | /* Called after all assembly has been done. */ | |
573 | void | |
5a49b8ac | 574 | s390_md_end (void) |
a85d7ed0 | 575 | { |
07855bec | 576 | if (s390_arch_size == 64) |
ff0fb565 | 577 | bfd_set_arch_mach (stdoutput, bfd_arch_s390, bfd_mach_s390_64); |
07855bec | 578 | else |
ff0fb565 | 579 | bfd_set_arch_mach (stdoutput, bfd_arch_s390, bfd_mach_s390_31); |
a85d7ed0 NC |
580 | } |
581 | ||
a85d7ed0 NC |
582 | /* Insert an operand value into an instruction. */ |
583 | ||
584 | static void | |
5a49b8ac AM |
585 | s390_insert_operand (unsigned char *insn, |
586 | const struct s390_operand *operand, | |
587 | offsetT val, | |
588 | char *file, | |
589 | unsigned int line) | |
a85d7ed0 NC |
590 | { |
591 | addressT uval; | |
592 | int offset; | |
593 | ||
07855bec NC |
594 | if (operand->flags & (S390_OPERAND_SIGNED|S390_OPERAND_PCREL)) |
595 | { | |
596 | offsetT min, max; | |
597 | ||
598 | max = ((offsetT) 1 << (operand->bits - 1)) - 1; | |
599 | min = - ((offsetT) 1 << (operand->bits - 1)); | |
600 | /* Halve PCREL operands. */ | |
601 | if (operand->flags & S390_OPERAND_PCREL) | |
602 | val >>= 1; | |
603 | /* Check for underflow / overflow. */ | |
604 | if (val < min || val > max) | |
605 | { | |
606 | const char *err = | |
20203fb9 | 607 | _("operand out of range (%s not between %ld and %ld)"); |
07855bec NC |
608 | char buf[100]; |
609 | ||
610 | if (operand->flags & S390_OPERAND_PCREL) | |
611 | { | |
612 | val <<= 1; | |
613 | min <<= 1; | |
614 | max <<= 1; | |
615 | } | |
616 | sprint_value (buf, val); | |
617 | if (file == (char *) NULL) | |
618 | as_bad (err, buf, (int) min, (int) max); | |
619 | else | |
620 | as_bad_where (file, line, err, buf, (int) min, (int) max); | |
621 | return; | |
622 | } | |
623 | /* val is ok, now restrict it to operand->bits bits. */ | |
624 | uval = (addressT) val & ((((addressT) 1 << (operand->bits-1)) << 1) - 1); | |
933fbc29 MS |
625 | /* val is restrict, now check for special case. */ |
626 | if (operand->bits == 20 && operand->shift == 20) | |
627 | uval = (uval >> 12) | ((uval & 0xfff) << 8); | |
a85d7ed0 | 628 | } |
07855bec NC |
629 | else |
630 | { | |
631 | addressT min, max; | |
198ce79b | 632 | |
98d3f06f | 633 | max = (((addressT) 1 << (operand->bits - 1)) << 1) - 1; |
07855bec NC |
634 | min = (offsetT) 0; |
635 | uval = (addressT) val; | |
636 | /* Length x in an instructions has real length x+1. */ | |
637 | if (operand->flags & S390_OPERAND_LENGTH) | |
638 | uval--; | |
639 | /* Check for underflow / overflow. */ | |
640 | if (uval < min || uval > max) | |
641 | { | |
07855bec NC |
642 | if (operand->flags & S390_OPERAND_LENGTH) |
643 | { | |
644 | uval++; | |
645 | min++; | |
646 | max++; | |
647 | } | |
e5976317 NC |
648 | |
649 | as_bad_value_out_of_range (_("operand"), uval, (offsetT) min, (offsetT) max, file, line); | |
650 | ||
07855bec NC |
651 | return; |
652 | } | |
a85d7ed0 | 653 | } |
a85d7ed0 NC |
654 | |
655 | /* Insert fragments of the operand byte for byte. */ | |
656 | offset = operand->shift + operand->bits; | |
657 | uval <<= (-offset) & 7; | |
98d3f06f | 658 | insn += (offset - 1) / 8; |
07855bec NC |
659 | while (uval != 0) |
660 | { | |
661 | *insn-- |= uval; | |
662 | uval >>= 8; | |
663 | } | |
a85d7ed0 NC |
664 | } |
665 | ||
1971b29d MS |
666 | struct map_tls |
667 | { | |
668 | char *string; | |
669 | int length; | |
670 | bfd_reloc_code_real_type reloc; | |
671 | }; | |
672 | ||
1971b29d MS |
673 | /* Parse tls marker and return the desired relocation. */ |
674 | static bfd_reloc_code_real_type | |
5a49b8ac | 675 | s390_tls_suffix (char **str_p, expressionS *exp_p) |
1971b29d MS |
676 | { |
677 | static struct map_tls mapping[] = | |
678 | { | |
679 | { "tls_load", 8, BFD_RELOC_390_TLS_LOAD }, | |
680 | { "tls_gdcall", 10, BFD_RELOC_390_TLS_GDCALL }, | |
681 | { "tls_ldcall", 10, BFD_RELOC_390_TLS_LDCALL }, | |
682 | { NULL, 0, BFD_RELOC_UNUSED } | |
683 | }; | |
684 | struct map_tls *ptr; | |
685 | char *orig_line; | |
686 | char *str; | |
687 | char *ident; | |
688 | int len; | |
689 | ||
690 | str = *str_p; | |
691 | if (*str++ != ':') | |
692 | return BFD_RELOC_UNUSED; | |
693 | ||
694 | ident = str; | |
695 | while (ISIDNUM (*str)) | |
696 | str++; | |
697 | len = str - ident; | |
698 | if (*str++ != ':') | |
699 | return BFD_RELOC_UNUSED; | |
700 | ||
701 | orig_line = input_line_pointer; | |
702 | input_line_pointer = str; | |
703 | expression (exp_p); | |
704 | str = input_line_pointer; | |
705 | if (&input_line_pointer != str_p) | |
706 | input_line_pointer = orig_line; | |
707 | ||
708 | if (exp_p->X_op != O_symbol) | |
709 | return BFD_RELOC_UNUSED; | |
710 | ||
711 | for (ptr = &mapping[0]; ptr->length > 0; ptr++) | |
712 | if (len == ptr->length | |
713 | && strncasecmp (ident, ptr->string, ptr->length) == 0) | |
714 | { | |
715 | /* Found a matching tls suffix. */ | |
716 | *str_p = str; | |
717 | return ptr->reloc; | |
718 | } | |
719 | return BFD_RELOC_UNUSED; | |
720 | } | |
721 | ||
a85d7ed0 | 722 | /* Structure used to hold suffixes. */ |
07855bec NC |
723 | typedef enum |
724 | { | |
725 | ELF_SUFFIX_NONE = 0, | |
726 | ELF_SUFFIX_GOT, | |
727 | ELF_SUFFIX_PLT, | |
2a19f73f MS |
728 | ELF_SUFFIX_GOTENT, |
729 | ELF_SUFFIX_GOTOFF, | |
730 | ELF_SUFFIX_GOTPLT, | |
1971b29d MS |
731 | ELF_SUFFIX_PLTOFF, |
732 | ELF_SUFFIX_TLS_GD, | |
733 | ELF_SUFFIX_TLS_GOTIE, | |
734 | ELF_SUFFIX_TLS_IE, | |
735 | ELF_SUFFIX_TLS_LDM, | |
736 | ELF_SUFFIX_TLS_LDO, | |
737 | ELF_SUFFIX_TLS_LE | |
07855bec NC |
738 | } |
739 | elf_suffix_type; | |
740 | ||
741 | struct map_bfd | |
742 | { | |
743 | char *string; | |
744 | int length; | |
745 | elf_suffix_type suffix; | |
746 | }; | |
a85d7ed0 | 747 | |
9d654c1c | 748 | |
a85d7ed0 NC |
749 | /* Parse @got/@plt/@gotoff. and return the desired relocation. */ |
750 | static elf_suffix_type | |
5a49b8ac | 751 | s390_elf_suffix (char **str_p, expressionS *exp_p) |
a85d7ed0 | 752 | { |
07855bec NC |
753 | static struct map_bfd mapping[] = |
754 | { | |
a85d7ed0 NC |
755 | { "got", 3, ELF_SUFFIX_GOT }, |
756 | { "got12", 5, ELF_SUFFIX_GOT }, | |
757 | { "plt", 3, ELF_SUFFIX_PLT }, | |
758 | { "gotent", 6, ELF_SUFFIX_GOTENT }, | |
2a19f73f MS |
759 | { "gotoff", 6, ELF_SUFFIX_GOTOFF }, |
760 | { "gotplt", 6, ELF_SUFFIX_GOTPLT }, | |
761 | { "pltoff", 6, ELF_SUFFIX_PLTOFF }, | |
1971b29d MS |
762 | { "tlsgd", 5, ELF_SUFFIX_TLS_GD }, |
763 | { "gotntpoff", 9, ELF_SUFFIX_TLS_GOTIE }, | |
764 | { "indntpoff", 9, ELF_SUFFIX_TLS_IE }, | |
765 | { "tlsldm", 6, ELF_SUFFIX_TLS_LDM }, | |
766 | { "dtpoff", 6, ELF_SUFFIX_TLS_LDO }, | |
767 | { "ntpoff", 6, ELF_SUFFIX_TLS_LE }, | |
a85d7ed0 NC |
768 | { NULL, 0, ELF_SUFFIX_NONE } |
769 | }; | |
770 | ||
771 | struct map_bfd *ptr; | |
772 | char *str = *str_p; | |
773 | char *ident; | |
774 | int len; | |
775 | ||
776 | if (*str++ != '@') | |
777 | return ELF_SUFFIX_NONE; | |
778 | ||
779 | ident = str; | |
3882b010 | 780 | while (ISALNUM (*str)) |
a85d7ed0 NC |
781 | str++; |
782 | len = str - ident; | |
783 | ||
784 | for (ptr = &mapping[0]; ptr->length > 0; ptr++) | |
16a419ba NC |
785 | if (len == ptr->length |
786 | && strncasecmp (ident, ptr->string, ptr->length) == 0) | |
07855bec NC |
787 | { |
788 | if (exp_p->X_add_number != 0) | |
789 | as_warn (_("identifier+constant@%s means identifier@%s+constant"), | |
790 | ptr->string, ptr->string); | |
791 | /* Now check for identifier@suffix+constant. */ | |
792 | if (*str == '-' || *str == '+') | |
793 | { | |
794 | char *orig_line = input_line_pointer; | |
795 | expressionS new_exp; | |
796 | ||
797 | input_line_pointer = str; | |
798 | expression (&new_exp); | |
799 | ||
800 | switch (new_exp.X_op) | |
801 | { | |
802 | case O_constant: /* X_add_number (a constant expression). */ | |
803 | exp_p->X_add_number += new_exp.X_add_number; | |
804 | str = input_line_pointer; | |
805 | break; | |
806 | case O_symbol: /* X_add_symbol + X_add_number. */ | |
807 | /* this case is used for e.g. xyz@PLT+.Label. */ | |
808 | exp_p->X_add_number += new_exp.X_add_number; | |
809 | exp_p->X_op_symbol = new_exp.X_add_symbol; | |
810 | exp_p->X_op = O_add; | |
811 | str = input_line_pointer; | |
812 | break; | |
813 | case O_uminus: /* (- X_add_symbol) + X_add_number. */ | |
814 | /* this case is used for e.g. xyz@PLT-.Label. */ | |
815 | exp_p->X_add_number += new_exp.X_add_number; | |
816 | exp_p->X_op_symbol = new_exp.X_add_symbol; | |
817 | exp_p->X_op = O_subtract; | |
818 | str = input_line_pointer; | |
819 | break; | |
820 | default: | |
821 | break; | |
822 | } | |
823 | ||
824 | /* If s390_elf_suffix has not been called with | |
825 | &input_line_pointer as first parameter, we have | |
826 | clobbered the input_line_pointer. We have to | |
827 | undo that. */ | |
828 | if (&input_line_pointer != str_p) | |
829 | input_line_pointer = orig_line; | |
a85d7ed0 | 830 | } |
07855bec NC |
831 | *str_p = str; |
832 | return ptr->suffix; | |
a85d7ed0 | 833 | } |
a85d7ed0 NC |
834 | |
835 | return BFD_RELOC_UNUSED; | |
836 | } | |
837 | ||
838 | /* Structure used to hold a literal pool entry. */ | |
07855bec NC |
839 | struct s390_lpe |
840 | { | |
841 | struct s390_lpe *next; | |
842 | expressionS ex; | |
843 | FLONUM_TYPE floatnum; /* used if X_op == O_big && X_add_number <= 0 */ | |
844 | LITTLENUM_TYPE bignum[4]; /* used if X_op == O_big && X_add_number > 0 */ | |
845 | int nbytes; | |
846 | bfd_reloc_code_real_type reloc; | |
847 | symbolS *sym; | |
848 | }; | |
a85d7ed0 NC |
849 | |
850 | static struct s390_lpe *lpe_free_list = NULL; | |
851 | static struct s390_lpe *lpe_list = NULL; | |
852 | static struct s390_lpe *lpe_list_tail = NULL; | |
853 | static symbolS *lp_sym = NULL; | |
854 | static int lp_count = 0; | |
855 | static int lpe_count = 0; | |
856 | ||
857 | static int | |
5a49b8ac | 858 | s390_exp_compare (expressionS *exp1, expressionS *exp2) |
a85d7ed0 NC |
859 | { |
860 | if (exp1->X_op != exp2->X_op) | |
861 | return 0; | |
862 | ||
07855bec NC |
863 | switch (exp1->X_op) |
864 | { | |
865 | case O_constant: /* X_add_number must be equal. */ | |
866 | case O_register: | |
867 | return exp1->X_add_number == exp2->X_add_number; | |
868 | ||
869 | case O_big: | |
198ce79b | 870 | as_bad (_("Can't handle O_big in s390_exp_compare")); |
07855bec NC |
871 | |
872 | case O_symbol: /* X_add_symbol & X_add_number must be equal. */ | |
873 | case O_symbol_rva: | |
874 | case O_uminus: | |
875 | case O_bit_not: | |
876 | case O_logical_not: | |
16a419ba NC |
877 | return (exp1->X_add_symbol == exp2->X_add_symbol) |
878 | && (exp1->X_add_number == exp2->X_add_number); | |
07855bec NC |
879 | |
880 | case O_multiply: /* X_add_symbol,X_op_symbol&X_add_number must be equal. */ | |
881 | case O_divide: | |
882 | case O_modulus: | |
883 | case O_left_shift: | |
884 | case O_right_shift: | |
885 | case O_bit_inclusive_or: | |
886 | case O_bit_or_not: | |
887 | case O_bit_exclusive_or: | |
888 | case O_bit_and: | |
889 | case O_add: | |
890 | case O_subtract: | |
891 | case O_eq: | |
892 | case O_ne: | |
893 | case O_lt: | |
894 | case O_le: | |
895 | case O_ge: | |
896 | case O_gt: | |
897 | case O_logical_and: | |
898 | case O_logical_or: | |
16a419ba NC |
899 | return (exp1->X_add_symbol == exp2->X_add_symbol) |
900 | && (exp1->X_op_symbol == exp2->X_op_symbol) | |
901 | && (exp1->X_add_number == exp2->X_add_number); | |
07855bec | 902 | default: |
98d3f06f KH |
903 | return 0; |
904 | } | |
a85d7ed0 NC |
905 | } |
906 | ||
907 | /* Test for @lit and if its present make an entry in the literal pool and | |
908 | modify the current expression to be an offset into the literal pool. */ | |
909 | static elf_suffix_type | |
5a49b8ac | 910 | s390_lit_suffix (char **str_p, expressionS *exp_p, elf_suffix_type suffix) |
a85d7ed0 NC |
911 | { |
912 | bfd_reloc_code_real_type reloc; | |
913 | char tmp_name[64]; | |
914 | char *str = *str_p; | |
915 | char *ident; | |
916 | struct s390_lpe *lpe; | |
917 | int nbytes, len; | |
918 | ||
919 | if (*str++ != ':') | |
920 | return suffix; /* No modification. */ | |
198ce79b | 921 | |
a85d7ed0 NC |
922 | /* We look for a suffix of the form "@lit1", "@lit2", "@lit4" or "@lit8". */ |
923 | ident = str; | |
3882b010 | 924 | while (ISALNUM (*str)) |
a85d7ed0 NC |
925 | str++; |
926 | len = str - ident; | |
16a419ba NC |
927 | if (len != 4 || strncasecmp (ident, "lit", 3) != 0 |
928 | || (ident[3]!='1' && ident[3]!='2' && ident[3]!='4' && ident[3]!='8')) | |
a85d7ed0 NC |
929 | return suffix; /* no modification */ |
930 | nbytes = ident[3] - '0'; | |
931 | ||
932 | reloc = BFD_RELOC_UNUSED; | |
07855bec NC |
933 | if (suffix == ELF_SUFFIX_GOT) |
934 | { | |
935 | if (nbytes == 2) | |
936 | reloc = BFD_RELOC_390_GOT16; | |
937 | else if (nbytes == 4) | |
938 | reloc = BFD_RELOC_32_GOT_PCREL; | |
939 | else if (nbytes == 8) | |
940 | reloc = BFD_RELOC_390_GOT64; | |
941 | } | |
942 | else if (suffix == ELF_SUFFIX_PLT) | |
943 | { | |
944 | if (nbytes == 4) | |
945 | reloc = BFD_RELOC_390_PLT32; | |
946 | else if (nbytes == 8) | |
947 | reloc = BFD_RELOC_390_PLT64; | |
948 | } | |
a85d7ed0 | 949 | |
07855bec | 950 | if (suffix != ELF_SUFFIX_NONE && reloc == BFD_RELOC_UNUSED) |
a85d7ed0 | 951 | as_bad (_("Invalid suffix for literal pool entry")); |
a85d7ed0 NC |
952 | |
953 | /* Search the pool if the new entry is a duplicate. */ | |
07855bec NC |
954 | if (exp_p->X_op == O_big) |
955 | { | |
956 | /* Special processing for big numbers. */ | |
957 | for (lpe = lpe_list; lpe != NULL; lpe = lpe->next) | |
958 | { | |
959 | if (lpe->ex.X_op == O_big) | |
960 | { | |
961 | if (exp_p->X_add_number <= 0 && lpe->ex.X_add_number <= 0) | |
962 | { | |
963 | if (memcmp (&generic_floating_point_number, &lpe->floatnum, | |
964 | sizeof (FLONUM_TYPE)) == 0) | |
965 | break; | |
966 | } | |
967 | else if (exp_p->X_add_number == lpe->ex.X_add_number) | |
968 | { | |
969 | if (memcmp (generic_bignum, lpe->bignum, | |
970 | sizeof (LITTLENUM_TYPE)*exp_p->X_add_number) == 0) | |
971 | break; | |
972 | } | |
973 | } | |
974 | } | |
a85d7ed0 | 975 | } |
07855bec NC |
976 | else |
977 | { | |
978 | /* Processing for 'normal' data types. */ | |
979 | for (lpe = lpe_list; lpe != NULL; lpe = lpe->next) | |
16a419ba | 980 | if (lpe->nbytes == nbytes && lpe->reloc == reloc |
98d3f06f | 981 | && s390_exp_compare (exp_p, &lpe->ex) != 0) |
07855bec | 982 | break; |
a85d7ed0 | 983 | } |
07855bec NC |
984 | |
985 | if (lpe == NULL) | |
986 | { | |
987 | /* A new literal. */ | |
988 | if (lpe_free_list != NULL) | |
989 | { | |
990 | lpe = lpe_free_list; | |
991 | lpe_free_list = lpe_free_list->next; | |
992 | } | |
a85d7ed0 | 993 | else |
07855bec | 994 | { |
98d3f06f | 995 | lpe = (struct s390_lpe *) xmalloc (sizeof (struct s390_lpe)); |
07855bec NC |
996 | } |
997 | ||
998 | lpe->ex = *exp_p; | |
999 | ||
1000 | if (exp_p->X_op == O_big) | |
1001 | { | |
1002 | if (exp_p->X_add_number <= 0) | |
1003 | lpe->floatnum = generic_floating_point_number; | |
1004 | else if (exp_p->X_add_number <= 4) | |
1005 | memcpy (lpe->bignum, generic_bignum, | |
98d3f06f | 1006 | exp_p->X_add_number * sizeof (LITTLENUM_TYPE)); |
07855bec NC |
1007 | else |
1008 | as_bad (_("Big number is too big")); | |
1009 | } | |
1010 | ||
1011 | lpe->nbytes = nbytes; | |
1012 | lpe->reloc = reloc; | |
1013 | /* Literal pool name defined ? */ | |
1014 | if (lp_sym == NULL) | |
1015 | { | |
07726851 | 1016 | sprintf (tmp_name, ".L\001%i", lp_count); |
98d3f06f | 1017 | lp_sym = symbol_make (tmp_name); |
07855bec | 1018 | } |
a85d7ed0 | 1019 | |
07855bec | 1020 | /* Make name for literal pool entry. */ |
07726851 | 1021 | sprintf (tmp_name, ".L\001%i\002%i", lp_count, lpe_count); |
07855bec | 1022 | lpe_count++; |
98d3f06f | 1023 | lpe->sym = symbol_make (tmp_name); |
07855bec NC |
1024 | |
1025 | /* Add to literal pool list. */ | |
1026 | lpe->next = NULL; | |
1027 | if (lpe_list_tail != NULL) | |
1028 | { | |
1029 | lpe_list_tail->next = lpe; | |
1030 | lpe_list_tail = lpe; | |
1031 | } | |
1032 | else | |
1033 | lpe_list = lpe_list_tail = lpe; | |
1034 | } | |
198ce79b | 1035 | |
a85d7ed0 NC |
1036 | /* Now change exp_p to the offset into the literal pool. |
1037 | Thats the expression: .L^Ax^By-.L^Ax */ | |
1038 | exp_p->X_add_symbol = lpe->sym; | |
1039 | exp_p->X_op_symbol = lp_sym; | |
1040 | exp_p->X_op = O_subtract; | |
1041 | exp_p->X_add_number = 0; | |
1042 | ||
1043 | *str_p = str; | |
1044 | ||
1045 | /* We change the suffix type to ELF_SUFFIX_NONE, because | |
1046 | the difference of two local labels is just a number. */ | |
1047 | return ELF_SUFFIX_NONE; | |
1048 | } | |
1049 | ||
1050 | /* Like normal .long/.short/.word, except support @got, etc. | |
1051 | clobbers input_line_pointer, checks end-of-line. */ | |
1052 | static void | |
5a49b8ac | 1053 | s390_elf_cons (int nbytes /* 1=.byte, 2=.word, 4=.long */) |
a85d7ed0 NC |
1054 | { |
1055 | expressionS exp; | |
1056 | elf_suffix_type suffix; | |
1057 | ||
07855bec NC |
1058 | if (is_it_end_of_statement ()) |
1059 | { | |
1060 | demand_empty_rest_of_line (); | |
1061 | return; | |
1062 | } | |
a85d7ed0 | 1063 | |
07855bec NC |
1064 | do |
1065 | { | |
1066 | expression (&exp); | |
1067 | ||
1068 | if (exp.X_op == O_symbol | |
1069 | && *input_line_pointer == '@' | |
1070 | && (suffix = s390_elf_suffix (&input_line_pointer, &exp)) != ELF_SUFFIX_NONE) | |
1071 | { | |
1072 | bfd_reloc_code_real_type reloc; | |
1073 | reloc_howto_type *reloc_howto; | |
1074 | int size; | |
1075 | char *where; | |
1076 | ||
1971b29d MS |
1077 | if (nbytes == 2) |
1078 | { | |
1079 | static bfd_reloc_code_real_type tab2[] = | |
1080 | { | |
5cfbfc2b MS |
1081 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_NONE */ |
1082 | BFD_RELOC_390_GOT16, /* ELF_SUFFIX_GOT */ | |
1083 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_PLT */ | |
1084 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTENT */ | |
1085 | BFD_RELOC_16_GOTOFF, /* ELF_SUFFIX_GOTOFF */ | |
1086 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTPLT */ | |
1087 | BFD_RELOC_390_PLTOFF16, /* ELF_SUFFIX_PLTOFF */ | |
1088 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_GD */ | |
1089 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_GOTIE */ | |
1090 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_IE */ | |
1091 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_LDM */ | |
1092 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_LDO */ | |
1093 | BFD_RELOC_UNUSED /* ELF_SUFFIX_TLS_LE */ | |
1971b29d MS |
1094 | }; |
1095 | reloc = tab2[suffix]; | |
1096 | } | |
1097 | else if (nbytes == 4) | |
1098 | { | |
1099 | static bfd_reloc_code_real_type tab4[] = | |
1100 | { | |
5cfbfc2b MS |
1101 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_NONE */ |
1102 | BFD_RELOC_32_GOT_PCREL, /* ELF_SUFFIX_GOT */ | |
1103 | BFD_RELOC_390_PLT32, /* ELF_SUFFIX_PLT */ | |
1104 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTENT */ | |
1105 | BFD_RELOC_32_GOTOFF, /* ELF_SUFFIX_GOTOFF */ | |
1106 | BFD_RELOC_390_GOTPLT32, /* ELF_SUFFIX_GOTPLT */ | |
1107 | BFD_RELOC_390_PLTOFF32, /* ELF_SUFFIX_PLTOFF */ | |
1108 | BFD_RELOC_390_TLS_GD32, /* ELF_SUFFIX_TLS_GD */ | |
1109 | BFD_RELOC_390_TLS_GOTIE32, /* ELF_SUFFIX_TLS_GOTIE */ | |
1110 | BFD_RELOC_390_TLS_IE32, /* ELF_SUFFIX_TLS_IE */ | |
1111 | BFD_RELOC_390_TLS_LDM32, /* ELF_SUFFIX_TLS_LDM */ | |
1112 | BFD_RELOC_390_TLS_LDO32, /* ELF_SUFFIX_TLS_LDO */ | |
1113 | BFD_RELOC_390_TLS_LE32 /* ELF_SUFFIX_TLS_LE */ | |
1971b29d MS |
1114 | }; |
1115 | reloc = tab4[suffix]; | |
1116 | } | |
1117 | else if (nbytes == 8) | |
1118 | { | |
1119 | static bfd_reloc_code_real_type tab8[] = | |
1120 | { | |
5cfbfc2b MS |
1121 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_NONE */ |
1122 | BFD_RELOC_390_GOT64, /* ELF_SUFFIX_GOT */ | |
1123 | BFD_RELOC_390_PLT64, /* ELF_SUFFIX_PLT */ | |
1124 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTENT */ | |
1125 | BFD_RELOC_390_GOTOFF64, /* ELF_SUFFIX_GOTOFF */ | |
1126 | BFD_RELOC_390_GOTPLT64, /* ELF_SUFFIX_GOTPLT */ | |
1127 | BFD_RELOC_390_PLTOFF64, /* ELF_SUFFIX_PLTOFF */ | |
1128 | BFD_RELOC_390_TLS_GD64, /* ELF_SUFFIX_TLS_GD */ | |
1129 | BFD_RELOC_390_TLS_GOTIE64, /* ELF_SUFFIX_TLS_GOTIE */ | |
1130 | BFD_RELOC_390_TLS_IE64, /* ELF_SUFFIX_TLS_IE */ | |
1131 | BFD_RELOC_390_TLS_LDM64, /* ELF_SUFFIX_TLS_LDM */ | |
1132 | BFD_RELOC_390_TLS_LDO64, /* ELF_SUFFIX_TLS_LDO */ | |
1133 | BFD_RELOC_390_TLS_LE64 /* ELF_SUFFIX_TLS_LE */ | |
1971b29d MS |
1134 | }; |
1135 | reloc = tab8[suffix]; | |
1136 | } | |
07855bec NC |
1137 | else |
1138 | reloc = BFD_RELOC_UNUSED; | |
1139 | ||
1971b29d MS |
1140 | if (reloc != BFD_RELOC_UNUSED |
1141 | && (reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc))) | |
07855bec | 1142 | { |
07855bec NC |
1143 | size = bfd_get_reloc_size (reloc_howto); |
1144 | if (size > nbytes) | |
1145 | as_bad (_("%s relocations do not fit in %d bytes"), | |
1146 | reloc_howto->name, nbytes); | |
07726851 | 1147 | where = frag_more (nbytes); |
07855bec | 1148 | md_number_to_chars (where, 0, size); |
198ce79b | 1149 | /* To make fixup_segment do the pc relative conversion the |
b34976b6 | 1150 | pcrel parameter on the fix_new_exp call needs to be FALSE. */ |
198ce79b | 1151 | fix_new_exp (frag_now, where - frag_now->fr_literal, |
b34976b6 | 1152 | size, &exp, FALSE, reloc); |
07855bec NC |
1153 | } |
1154 | else | |
1155 | as_bad (_("relocation not applicable")); | |
1156 | } | |
a85d7ed0 | 1157 | else |
07855bec NC |
1158 | emit_expr (&exp, (unsigned int) nbytes); |
1159 | } | |
1160 | while (*input_line_pointer++ == ','); | |
a85d7ed0 | 1161 | |
98d3f06f | 1162 | input_line_pointer--; /* Put terminator back into stream. */ |
a85d7ed0 NC |
1163 | demand_empty_rest_of_line (); |
1164 | } | |
1165 | ||
1166 | /* We need to keep a list of fixups. We can't simply generate them as | |
1167 | we go, because that would require us to first create the frag, and | |
1168 | that would screw up references to ``.''. */ | |
1169 | ||
1170 | struct s390_fixup | |
07855bec NC |
1171 | { |
1172 | expressionS exp; | |
1173 | int opindex; | |
1174 | bfd_reloc_code_real_type reloc; | |
1175 | }; | |
a85d7ed0 NC |
1176 | |
1177 | #define MAX_INSN_FIXUPS (4) | |
1178 | ||
1179 | /* This routine is called for each instruction to be assembled. */ | |
1180 | ||
9d654c1c | 1181 | static char * |
5a49b8ac AM |
1182 | md_gather_operands (char *str, |
1183 | unsigned char *insn, | |
1184 | const struct s390_opcode *opcode) | |
a85d7ed0 NC |
1185 | { |
1186 | struct s390_fixup fixups[MAX_INSN_FIXUPS]; | |
1187 | const struct s390_operand *operand; | |
1188 | const unsigned char *opindex_ptr; | |
1971b29d | 1189 | expressionS ex; |
a85d7ed0 NC |
1190 | elf_suffix_type suffix; |
1191 | bfd_reloc_code_real_type reloc; | |
1192 | int skip_optional; | |
a85d7ed0 NC |
1193 | char *f; |
1194 | int fc, i; | |
1195 | ||
98d3f06f KH |
1196 | while (ISSPACE (*str)) |
1197 | str++; | |
a85d7ed0 | 1198 | |
a85d7ed0 NC |
1199 | skip_optional = 0; |
1200 | ||
1201 | /* Gather the operands. */ | |
1202 | fc = 0; | |
07855bec NC |
1203 | for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++) |
1204 | { | |
07855bec NC |
1205 | char *hold; |
1206 | ||
1207 | operand = s390_operands + *opindex_ptr; | |
198ce79b | 1208 | |
07855bec NC |
1209 | if (skip_optional && (operand->flags & S390_OPERAND_INDEX)) |
1210 | { | |
1211 | /* We do an early skip. For D(X,B) constructions the index | |
198ce79b | 1212 | register is skipped (X is optional). For D(L,B) the base |
07855bec NC |
1213 | register will be the skipped operand, because L is NOT |
1214 | optional. */ | |
1215 | skip_optional = 0; | |
1216 | continue; | |
1217 | } | |
198ce79b | 1218 | |
07855bec NC |
1219 | /* Gather the operand. */ |
1220 | hold = input_line_pointer; | |
1221 | input_line_pointer = str; | |
1222 | ||
98d3f06f KH |
1223 | /* Parse the operand. */ |
1224 | if (! register_name (&ex)) | |
07855bec | 1225 | expression (&ex); |
198ce79b | 1226 | |
07855bec NC |
1227 | str = input_line_pointer; |
1228 | input_line_pointer = hold; | |
198ce79b | 1229 | |
07855bec NC |
1230 | /* Write the operand to the insn. */ |
1231 | if (ex.X_op == O_illegal) | |
1232 | as_bad (_("illegal operand")); | |
1233 | else if (ex.X_op == O_absent) | |
5e7c27a6 MS |
1234 | { |
1235 | /* No operands, check if all operands can be skipped. */ | |
1236 | while (*opindex_ptr != 0 && operand->flags & S390_OPERAND_OPTIONAL) | |
1237 | { | |
1238 | if (operand->flags & S390_OPERAND_DISP) | |
1239 | { | |
1240 | /* An optional displacement makes the whole D(X,B) | |
1241 | D(L,B) or D(B) block optional. */ | |
1242 | do { | |
1243 | operand = s390_operands + *(++opindex_ptr); | |
1244 | } while (!(operand->flags & S390_OPERAND_BASE)); | |
1245 | } | |
1246 | operand = s390_operands + *(++opindex_ptr); | |
1247 | } | |
1248 | if (opindex_ptr[0] == '\0') | |
1249 | break; | |
1250 | as_bad (_("missing operand")); | |
1251 | } | |
07855bec NC |
1252 | else if (ex.X_op == O_register || ex.X_op == O_constant) |
1253 | { | |
1254 | s390_lit_suffix (&str, &ex, ELF_SUFFIX_NONE); | |
1255 | ||
1256 | if (ex.X_op != O_register && ex.X_op != O_constant) | |
1257 | { | |
1258 | /* We need to generate a fixup for the | |
1259 | expression returned by s390_lit_suffix. */ | |
1260 | if (fc >= MAX_INSN_FIXUPS) | |
1261 | as_fatal (_("too many fixups")); | |
1262 | fixups[fc].exp = ex; | |
1263 | fixups[fc].opindex = *opindex_ptr; | |
1264 | fixups[fc].reloc = BFD_RELOC_UNUSED; | |
1265 | ++fc; | |
1266 | } | |
1267 | else | |
1268 | { | |
16a419ba NC |
1269 | if ((operand->flags & S390_OPERAND_INDEX) |
1270 | && ex.X_add_number == 0 | |
b34976b6 | 1271 | && warn_areg_zero) |
20203fb9 | 1272 | as_warn (_("index register specified but zero")); |
16a419ba NC |
1273 | if ((operand->flags & S390_OPERAND_BASE) |
1274 | && ex.X_add_number == 0 | |
b34976b6 | 1275 | && warn_areg_zero) |
20203fb9 | 1276 | as_warn (_("base register specified but zero")); |
c8fa16ed AK |
1277 | if ((operand->flags & S390_OPERAND_GPR) |
1278 | && (operand->flags & S390_OPERAND_REG_PAIR) | |
5e4b319c | 1279 | && (ex.X_add_number & 1)) |
c8fa16ed AK |
1280 | as_fatal (_("odd numbered general purpose register specified as " |
1281 | "register pair")); | |
1282 | if ((operand->flags & S390_OPERAND_FPR) | |
1283 | && (operand->flags & S390_OPERAND_REG_PAIR) | |
1284 | && ex.X_add_number != 0 && ex.X_add_number != 1 | |
1285 | && ex.X_add_number != 4 && ex.X_add_number != 5 | |
1286 | && ex.X_add_number != 8 && ex.X_add_number != 9 | |
1287 | && ex.X_add_number != 12 && ex.X_add_number != 13) | |
1288 | as_fatal (_("invalid floating point register pair. Valid fp " | |
1289 | "register pair operands are 0, 1, 4, 5, 8, 9, " | |
1290 | "12 or 13.")); | |
07855bec NC |
1291 | s390_insert_operand (insn, operand, ex.X_add_number, NULL, 0); |
1292 | } | |
1293 | } | |
1294 | else | |
1295 | { | |
1296 | suffix = s390_elf_suffix (&str, &ex); | |
1297 | suffix = s390_lit_suffix (&str, &ex, suffix); | |
1298 | reloc = BFD_RELOC_UNUSED; | |
1299 | ||
1300 | if (suffix == ELF_SUFFIX_GOT) | |
1301 | { | |
933fbc29 MS |
1302 | if ((operand->flags & S390_OPERAND_DISP) && |
1303 | (operand->bits == 12)) | |
07855bec | 1304 | reloc = BFD_RELOC_390_GOT12; |
933fbc29 MS |
1305 | else if ((operand->flags & S390_OPERAND_DISP) && |
1306 | (operand->bits == 20)) | |
1307 | reloc = BFD_RELOC_390_GOT20; | |
16a419ba NC |
1308 | else if ((operand->flags & S390_OPERAND_SIGNED) |
1309 | && (operand->bits == 16)) | |
07855bec | 1310 | reloc = BFD_RELOC_390_GOT16; |
16a419ba NC |
1311 | else if ((operand->flags & S390_OPERAND_PCREL) |
1312 | && (operand->bits == 32)) | |
07855bec NC |
1313 | reloc = BFD_RELOC_390_GOTENT; |
1314 | } | |
1315 | else if (suffix == ELF_SUFFIX_PLT) | |
1316 | { | |
16a419ba | 1317 | if ((operand->flags & S390_OPERAND_PCREL) |
fb798c50 AK |
1318 | && (operand->bits == 12)) |
1319 | reloc = BFD_RELOC_390_PLT12DBL; | |
1320 | else if ((operand->flags & S390_OPERAND_PCREL) | |
1321 | && (operand->bits == 16)) | |
07855bec | 1322 | reloc = BFD_RELOC_390_PLT16DBL; |
fb798c50 AK |
1323 | else if ((operand->flags & S390_OPERAND_PCREL) |
1324 | && (operand->bits == 24)) | |
1325 | reloc = BFD_RELOC_390_PLT24DBL; | |
16a419ba NC |
1326 | else if ((operand->flags & S390_OPERAND_PCREL) |
1327 | && (operand->bits == 32)) | |
07855bec NC |
1328 | reloc = BFD_RELOC_390_PLT32DBL; |
1329 | } | |
1330 | else if (suffix == ELF_SUFFIX_GOTENT) | |
1331 | { | |
16a419ba NC |
1332 | if ((operand->flags & S390_OPERAND_PCREL) |
1333 | && (operand->bits == 32)) | |
07855bec NC |
1334 | reloc = BFD_RELOC_390_GOTENT; |
1335 | } | |
2a19f73f MS |
1336 | else if (suffix == ELF_SUFFIX_GOTOFF) |
1337 | { | |
1338 | if ((operand->flags & S390_OPERAND_SIGNED) | |
1339 | && (operand->bits == 16)) | |
1340 | reloc = BFD_RELOC_16_GOTOFF; | |
1341 | } | |
1342 | else if (suffix == ELF_SUFFIX_PLTOFF) | |
1343 | { | |
1344 | if ((operand->flags & S390_OPERAND_SIGNED) | |
1345 | && (operand->bits == 16)) | |
1346 | reloc = BFD_RELOC_390_PLTOFF16; | |
1347 | } | |
1348 | else if (suffix == ELF_SUFFIX_GOTPLT) | |
1349 | { | |
1350 | if ((operand->flags & S390_OPERAND_DISP) | |
1351 | && (operand->bits == 12)) | |
1352 | reloc = BFD_RELOC_390_GOTPLT12; | |
1353 | else if ((operand->flags & S390_OPERAND_SIGNED) | |
1354 | && (operand->bits == 16)) | |
1355 | reloc = BFD_RELOC_390_GOTPLT16; | |
1356 | else if ((operand->flags & S390_OPERAND_PCREL) | |
1357 | && (operand->bits == 32)) | |
1358 | reloc = BFD_RELOC_390_GOTPLTENT; | |
1359 | } | |
1971b29d MS |
1360 | else if (suffix == ELF_SUFFIX_TLS_GOTIE) |
1361 | { | |
1362 | if ((operand->flags & S390_OPERAND_DISP) | |
1363 | && (operand->bits == 12)) | |
1364 | reloc = BFD_RELOC_390_TLS_GOTIE12; | |
933fbc29 MS |
1365 | else if ((operand->flags & S390_OPERAND_DISP) |
1366 | && (operand->bits == 20)) | |
1367 | reloc = BFD_RELOC_390_TLS_GOTIE20; | |
1971b29d MS |
1368 | } |
1369 | else if (suffix == ELF_SUFFIX_TLS_IE) | |
1370 | { | |
1371 | if ((operand->flags & S390_OPERAND_PCREL) | |
1372 | && (operand->bits == 32)) | |
1373 | reloc = BFD_RELOC_390_TLS_IEENT; | |
1374 | } | |
07855bec NC |
1375 | |
1376 | if (suffix != ELF_SUFFIX_NONE && reloc == BFD_RELOC_UNUSED) | |
1377 | as_bad (_("invalid operand suffix")); | |
1378 | /* We need to generate a fixup of type 'reloc' for this | |
1379 | expression. */ | |
a85d7ed0 NC |
1380 | if (fc >= MAX_INSN_FIXUPS) |
1381 | as_fatal (_("too many fixups")); | |
1382 | fixups[fc].exp = ex; | |
1383 | fixups[fc].opindex = *opindex_ptr; | |
07855bec | 1384 | fixups[fc].reloc = reloc; |
a85d7ed0 | 1385 | ++fc; |
07855bec | 1386 | } |
198ce79b | 1387 | |
07855bec NC |
1388 | /* Check the next character. The call to expression has advanced |
1389 | str past any whitespace. */ | |
1390 | if (operand->flags & S390_OPERAND_DISP) | |
1391 | { | |
1392 | /* After a displacement a block in parentheses can start. */ | |
1393 | if (*str != '(') | |
1394 | { | |
67c1ffbe | 1395 | /* Check if parenthesized block can be skipped. If the next |
07855bec NC |
1396 | operand is neiter an optional operand nor a base register |
1397 | then we have a syntax error. */ | |
1398 | operand = s390_operands + *(++opindex_ptr); | |
1399 | if (!(operand->flags & (S390_OPERAND_INDEX|S390_OPERAND_BASE))) | |
1400 | as_bad (_("syntax error; missing '(' after displacement")); | |
1401 | ||
1402 | /* Ok, skip all operands until S390_OPERAND_BASE. */ | |
1403 | while (!(operand->flags & S390_OPERAND_BASE)) | |
1404 | operand = s390_operands + *(++opindex_ptr); | |
198ce79b | 1405 | |
67c1ffbe | 1406 | /* If there is a next operand it must be separated by a comma. */ |
07855bec NC |
1407 | if (opindex_ptr[1] != '\0') |
1408 | { | |
6c639ef9 MS |
1409 | if (*str != ',') |
1410 | { | |
1411 | while (opindex_ptr[1] != '\0') | |
1412 | { | |
1413 | operand = s390_operands + *(++opindex_ptr); | |
1414 | if (operand->flags & S390_OPERAND_OPTIONAL) | |
1415 | continue; | |
1416 | as_bad (_("syntax error; expected ,")); | |
1417 | break; | |
1418 | } | |
1419 | } | |
1420 | else | |
1421 | str++; | |
07855bec NC |
1422 | } |
1423 | } | |
1424 | else | |
1425 | { | |
1426 | /* We found an opening parentheses. */ | |
1427 | str++; | |
1428 | for (f = str; *f != '\0'; f++) | |
1429 | if (*f == ',' || *f == ')') | |
1430 | break; | |
1431 | /* If there is no comma until the closing parentheses OR | |
1432 | there is a comma right after the opening parentheses, | |
1433 | we have to skip optional operands. */ | |
1434 | if (*f == ',' && f == str) | |
1435 | { | |
1436 | /* comma directly after '(' ? */ | |
1437 | skip_optional = 1; | |
1438 | str++; | |
1439 | } | |
1440 | else | |
1441 | skip_optional = (*f != ','); | |
1442 | } | |
1443 | } | |
1444 | else if (operand->flags & S390_OPERAND_BASE) | |
1445 | { | |
1446 | /* After the base register the parenthesed block ends. */ | |
1447 | if (*str++ != ')') | |
1448 | as_bad (_("syntax error; missing ')' after base register")); | |
1449 | skip_optional = 0; | |
67c1ffbe | 1450 | /* If there is a next operand it must be separated by a comma. */ |
07855bec NC |
1451 | if (opindex_ptr[1] != '\0') |
1452 | { | |
6c639ef9 MS |
1453 | if (*str != ',') |
1454 | { | |
1455 | while (opindex_ptr[1] != '\0') | |
1456 | { | |
1457 | operand = s390_operands + *(++opindex_ptr); | |
1458 | if (operand->flags & S390_OPERAND_OPTIONAL) | |
1459 | continue; | |
1460 | as_bad (_("syntax error; expected ,")); | |
1461 | break; | |
1462 | } | |
1463 | } | |
1464 | else | |
1465 | str++; | |
07855bec NC |
1466 | } |
1467 | } | |
1468 | else | |
1469 | { | |
1470 | /* We can find an 'early' closing parentheses in e.g. D(L) instead | |
1471 | of D(L,B). In this case the base register has to be skipped. */ | |
1472 | if (*str == ')') | |
1473 | { | |
1474 | operand = s390_operands + *(++opindex_ptr); | |
1475 | ||
1476 | if (!(operand->flags & S390_OPERAND_BASE)) | |
1477 | as_bad (_("syntax error; ')' not allowed here")); | |
1478 | str++; | |
1479 | } | |
67c1ffbe | 1480 | /* If there is a next operand it must be separated by a comma. */ |
07855bec NC |
1481 | if (opindex_ptr[1] != '\0') |
1482 | { | |
6c639ef9 MS |
1483 | if (*str != ',') |
1484 | { | |
1485 | while (opindex_ptr[1] != '\0') | |
1486 | { | |
1487 | operand = s390_operands + *(++opindex_ptr); | |
1488 | if (operand->flags & S390_OPERAND_OPTIONAL) | |
1489 | continue; | |
1490 | as_bad (_("syntax error; expected ,")); | |
1491 | break; | |
1492 | } | |
1493 | } | |
1494 | else | |
1495 | str++; | |
07855bec | 1496 | } |
a85d7ed0 | 1497 | } |
a85d7ed0 | 1498 | } |
a85d7ed0 | 1499 | |
3882b010 | 1500 | while (ISSPACE (*str)) |
a85d7ed0 NC |
1501 | ++str; |
1502 | ||
1971b29d MS |
1503 | /* Check for tls instruction marker. */ |
1504 | reloc = s390_tls_suffix (&str, &ex); | |
1505 | if (reloc != BFD_RELOC_UNUSED) | |
1506 | { | |
1507 | /* We need to generate a fixup of type 'reloc' for this | |
1508 | instruction. */ | |
1509 | if (fc >= MAX_INSN_FIXUPS) | |
1510 | as_fatal (_("too many fixups")); | |
1511 | fixups[fc].exp = ex; | |
1512 | fixups[fc].opindex = -1; | |
1513 | fixups[fc].reloc = reloc; | |
1514 | ++fc; | |
1515 | } | |
1516 | ||
07855bec NC |
1517 | if (*str != '\0') |
1518 | { | |
1519 | char *linefeed; | |
a85d7ed0 | 1520 | |
07726851 | 1521 | if ((linefeed = strchr (str, '\n')) != NULL) |
07855bec NC |
1522 | *linefeed = '\0'; |
1523 | as_bad (_("junk at end of line: `%s'"), str); | |
1524 | if (linefeed != NULL) | |
1525 | *linefeed = '\n'; | |
1526 | } | |
a85d7ed0 NC |
1527 | |
1528 | /* Write out the instruction. */ | |
1529 | f = frag_more (opcode->oplen); | |
07855bec | 1530 | memcpy (f, insn, opcode->oplen); |
8f5b2891 | 1531 | dwarf2_emit_insn (opcode->oplen); |
a85d7ed0 NC |
1532 | |
1533 | /* Create any fixups. At this point we do not use a | |
1534 | bfd_reloc_code_real_type, but instead just use the | |
1535 | BFD_RELOC_UNUSED plus the operand index. This lets us easily | |
1536 | handle fixups for any operand type, although that is admittedly | |
1537 | not a very exciting feature. We pick a BFD reloc type in | |
55cf6793 | 1538 | md_apply_fix. */ |
07855bec NC |
1539 | for (i = 0; i < fc; i++) |
1540 | { | |
1971b29d MS |
1541 | |
1542 | if (fixups[i].opindex < 0) | |
1543 | { | |
1544 | /* Create tls instruction marker relocation. */ | |
1545 | fix_new_exp (frag_now, f - frag_now->fr_literal, opcode->oplen, | |
1546 | &fixups[i].exp, 0, fixups[i].reloc); | |
1547 | continue; | |
1548 | } | |
1549 | ||
07855bec | 1550 | operand = s390_operands + fixups[i].opindex; |
a85d7ed0 | 1551 | |
07855bec NC |
1552 | if (fixups[i].reloc != BFD_RELOC_UNUSED) |
1553 | { | |
1554 | reloc_howto_type *reloc_howto; | |
1555 | fixS *fixP; | |
1556 | int size; | |
198ce79b | 1557 | |
07855bec NC |
1558 | reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc); |
1559 | if (!reloc_howto) | |
1560 | abort (); | |
198ce79b | 1561 | |
fb798c50 | 1562 | size = ((reloc_howto->bitsize - 1) / 8) + 1; |
07855bec NC |
1563 | |
1564 | if (size < 1 || size > 4) | |
1565 | abort (); | |
198ce79b AJ |
1566 | |
1567 | fixP = fix_new_exp (frag_now, | |
1568 | f - frag_now->fr_literal + (operand->shift/8), | |
07855bec NC |
1569 | size, &fixups[i].exp, reloc_howto->pc_relative, |
1570 | fixups[i].reloc); | |
1571 | /* Turn off overflow checking in fixup_segment. This is necessary | |
1572 | because fixup_segment will signal an overflow for large 4 byte | |
1573 | quantities for GOT12 relocations. */ | |
16a419ba | 1574 | if ( fixups[i].reloc == BFD_RELOC_390_GOT12 |
933fbc29 | 1575 | || fixups[i].reloc == BFD_RELOC_390_GOT20 |
16a419ba | 1576 | || fixups[i].reloc == BFD_RELOC_390_GOT16) |
07855bec NC |
1577 | fixP->fx_no_overflow = 1; |
1578 | } | |
1579 | else | |
1580 | fix_new_exp (frag_now, f - frag_now->fr_literal, 4, &fixups[i].exp, | |
1581 | (operand->flags & S390_OPERAND_PCREL) != 0, | |
1582 | ((bfd_reloc_code_real_type) | |
1583 | (fixups[i].opindex + (int) BFD_RELOC_UNUSED))); | |
1584 | } | |
a85d7ed0 NC |
1585 | return str; |
1586 | } | |
1587 | ||
1588 | /* This routine is called for each instruction to be assembled. */ | |
1589 | ||
1590 | void | |
5a49b8ac | 1591 | md_assemble (char *str) |
a85d7ed0 NC |
1592 | { |
1593 | const struct s390_opcode *opcode; | |
1594 | unsigned char insn[6]; | |
1595 | char *s; | |
1596 | ||
1597 | /* Get the opcode. */ | |
3882b010 | 1598 | for (s = str; *s != '\0' && ! ISSPACE (*s); s++) |
a85d7ed0 NC |
1599 | ; |
1600 | if (*s != '\0') | |
1601 | *s++ = '\0'; | |
1602 | ||
1603 | /* Look up the opcode in the hash table. */ | |
1604 | opcode = (struct s390_opcode *) hash_find (s390_opcode_hash, str); | |
07855bec NC |
1605 | if (opcode == (const struct s390_opcode *) NULL) |
1606 | { | |
1607 | as_bad (_("Unrecognized opcode: `%s'"), str); | |
1608 | return; | |
1609 | } | |
37a58793 MS |
1610 | else if (!(opcode->modes & current_mode_mask)) |
1611 | { | |
20203fb9 | 1612 | as_bad (_("Opcode %s not available in this mode"), str); |
37a58793 MS |
1613 | return; |
1614 | } | |
07726851 | 1615 | memcpy (insn, opcode->opcode, sizeof (insn)); |
07855bec | 1616 | md_gather_operands (s, insn, opcode); |
a85d7ed0 NC |
1617 | } |
1618 | ||
1619 | #ifndef WORKING_DOT_WORD | |
1620 | /* Handle long and short jumps. We don't support these */ | |
1621 | void | |
1622 | md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
1623 | char *ptr; | |
1624 | addressT from_addr, to_addr; | |
1625 | fragS *frag; | |
1626 | symbolS *to_symbol; | |
1627 | { | |
1628 | abort (); | |
1629 | } | |
1630 | ||
1631 | void | |
1632 | md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
1633 | char *ptr; | |
1634 | addressT from_addr, to_addr; | |
1635 | fragS *frag; | |
1636 | symbolS *to_symbol; | |
1637 | { | |
1638 | abort (); | |
1639 | } | |
1640 | #endif | |
1641 | ||
1642 | void | |
5a49b8ac | 1643 | s390_bss (int ignore ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
1644 | { |
1645 | /* We don't support putting frags in the BSS segment, we fake it | |
1646 | by marking in_bss, then looking at s_skip for clues. */ | |
1647 | ||
1648 | subseg_set (bss_section, 0); | |
1649 | demand_empty_rest_of_line (); | |
1650 | } | |
1651 | ||
1652 | /* Pseudo-op handling. */ | |
1653 | ||
1654 | void | |
5a49b8ac | 1655 | s390_insn (int ignore ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
1656 | { |
1657 | expressionS exp; | |
1658 | const struct s390_opcode *opformat; | |
1659 | unsigned char insn[6]; | |
1660 | char *s; | |
1661 | ||
1662 | /* Get the opcode format. */ | |
1663 | s = input_line_pointer; | |
3882b010 | 1664 | while (*s != '\0' && *s != ',' && ! ISSPACE (*s)) |
a85d7ed0 NC |
1665 | s++; |
1666 | if (*s != ',') | |
1667 | as_bad (_("Invalid .insn format\n")); | |
1668 | *s++ = '\0'; | |
1669 | ||
1670 | /* Look up the opcode in the hash table. */ | |
1671 | opformat = (struct s390_opcode *) | |
1672 | hash_find (s390_opformat_hash, input_line_pointer); | |
07855bec NC |
1673 | if (opformat == (const struct s390_opcode *) NULL) |
1674 | { | |
1675 | as_bad (_("Unrecognized opcode format: `%s'"), input_line_pointer); | |
1676 | return; | |
1677 | } | |
a85d7ed0 NC |
1678 | input_line_pointer = s; |
1679 | expression (&exp); | |
07855bec NC |
1680 | if (exp.X_op == O_constant) |
1681 | { | |
1d6d62a4 | 1682 | if ( ( opformat->oplen == 6 |
1d6d62a4 MS |
1683 | && (addressT) exp.X_add_number < (1ULL << 48)) |
1684 | || ( opformat->oplen == 4 | |
1d6d62a4 MS |
1685 | && (addressT) exp.X_add_number < (1ULL << 32)) |
1686 | || ( opformat->oplen == 2 | |
1d6d62a4 | 1687 | && (addressT) exp.X_add_number < (1ULL << 16))) |
2132e3a3 | 1688 | md_number_to_chars ((char *) insn, exp.X_add_number, opformat->oplen); |
07855bec | 1689 | else |
07726851 | 1690 | as_bad (_("Invalid .insn format\n")); |
07855bec NC |
1691 | } |
1692 | else if (exp.X_op == O_big) | |
1693 | { | |
16a419ba NC |
1694 | if (exp.X_add_number > 0 |
1695 | && opformat->oplen == 6 | |
1696 | && generic_bignum[3] == 0) | |
07855bec | 1697 | { |
2132e3a3 AM |
1698 | md_number_to_chars ((char *) insn, generic_bignum[2], 2); |
1699 | md_number_to_chars ((char *) &insn[2], generic_bignum[1], 2); | |
1700 | md_number_to_chars ((char *) &insn[4], generic_bignum[0], 2); | |
07855bec NC |
1701 | } |
1702 | else | |
07726851 | 1703 | as_bad (_("Invalid .insn format\n")); |
07855bec NC |
1704 | } |
1705 | else | |
a85d7ed0 | 1706 | as_bad (_("second operand of .insn not a constant\n")); |
a85d7ed0 | 1707 | |
b6849f55 NC |
1708 | if (strcmp (opformat->name, "e") != 0 && *input_line_pointer++ != ',') |
1709 | as_bad (_("missing comma after insn constant\n")); | |
98d3f06f | 1710 | |
07726851 | 1711 | if ((s = strchr (input_line_pointer, '\n')) != NULL) |
a85d7ed0 | 1712 | *s = '\0'; |
b6849f55 NC |
1713 | input_line_pointer = md_gather_operands (input_line_pointer, insn, |
1714 | opformat); | |
a85d7ed0 NC |
1715 | if (s != NULL) |
1716 | *s = '\n'; | |
1717 | demand_empty_rest_of_line (); | |
1718 | } | |
1719 | ||
1720 | /* The .byte pseudo-op. This is similar to the normal .byte | |
1721 | pseudo-op, but it can also take a single ASCII string. */ | |
1722 | ||
1723 | static void | |
5a49b8ac | 1724 | s390_byte (int ignore ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
1725 | { |
1726 | if (*input_line_pointer != '\"') | |
1727 | { | |
1728 | cons (1); | |
1729 | return; | |
1730 | } | |
1731 | ||
1732 | /* Gather characters. A real double quote is doubled. Unusual | |
1733 | characters are not permitted. */ | |
1734 | ++input_line_pointer; | |
1735 | while (1) | |
1736 | { | |
1737 | char c; | |
1738 | ||
1739 | c = *input_line_pointer++; | |
1740 | ||
1741 | if (c == '\"') | |
1742 | { | |
1743 | if (*input_line_pointer != '\"') | |
1744 | break; | |
1745 | ++input_line_pointer; | |
1746 | } | |
1747 | ||
1748 | FRAG_APPEND_1_CHAR (c); | |
1749 | } | |
1750 | ||
1751 | demand_empty_rest_of_line (); | |
1752 | } | |
1753 | ||
1754 | /* The .ltorg pseudo-op.This emits all literals defined since the last | |
198ce79b | 1755 | .ltorg or the invocation of gas. Literals are defined with the |
a85d7ed0 NC |
1756 | @lit suffix. */ |
1757 | ||
1758 | static void | |
5a49b8ac | 1759 | s390_literals (int ignore ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
1760 | { |
1761 | struct s390_lpe *lpe; | |
1762 | ||
1763 | if (lp_sym == NULL || lpe_count == 0) | |
98d3f06f | 1764 | return; /* Nothing to be done. */ |
a85d7ed0 NC |
1765 | |
1766 | /* Emit symbol for start of literal pool. */ | |
1767 | S_SET_SEGMENT (lp_sym, now_seg); | |
1768 | S_SET_VALUE (lp_sym, (valueT) frag_now_fix ()); | |
1769 | lp_sym->sy_frag = frag_now; | |
1770 | ||
07855bec NC |
1771 | while (lpe_list) |
1772 | { | |
1773 | lpe = lpe_list; | |
1774 | lpe_list = lpe_list->next; | |
1775 | S_SET_SEGMENT (lpe->sym, now_seg); | |
1776 | S_SET_VALUE (lpe->sym, (valueT) frag_now_fix ()); | |
1777 | lpe->sym->sy_frag = frag_now; | |
1778 | ||
1779 | /* Emit literal pool entry. */ | |
1780 | if (lpe->reloc != BFD_RELOC_UNUSED) | |
1781 | { | |
198ce79b | 1782 | reloc_howto_type *reloc_howto = |
07855bec NC |
1783 | bfd_reloc_type_lookup (stdoutput, lpe->reloc); |
1784 | int size = bfd_get_reloc_size (reloc_howto); | |
1785 | char *where; | |
1786 | ||
1787 | if (size > lpe->nbytes) | |
1788 | as_bad (_("%s relocations do not fit in %d bytes"), | |
1789 | reloc_howto->name, lpe->nbytes); | |
07726851 | 1790 | where = frag_more (lpe->nbytes); |
07855bec NC |
1791 | md_number_to_chars (where, 0, size); |
1792 | fix_new_exp (frag_now, where - frag_now->fr_literal, | |
1793 | size, &lpe->ex, reloc_howto->pc_relative, lpe->reloc); | |
1794 | } | |
1795 | else | |
1796 | { | |
1797 | if (lpe->ex.X_op == O_big) | |
1798 | { | |
1799 | if (lpe->ex.X_add_number <= 0) | |
1800 | generic_floating_point_number = lpe->floatnum; | |
1801 | else | |
1802 | memcpy (generic_bignum, lpe->bignum, | |
98d3f06f | 1803 | lpe->ex.X_add_number * sizeof (LITTLENUM_TYPE)); |
07855bec NC |
1804 | } |
1805 | emit_expr (&lpe->ex, lpe->nbytes); | |
1806 | } | |
a85d7ed0 | 1807 | |
07855bec NC |
1808 | lpe->next = lpe_free_list; |
1809 | lpe_free_list = lpe; | |
1810 | } | |
a85d7ed0 NC |
1811 | lpe_list_tail = NULL; |
1812 | lp_sym = NULL; | |
1813 | lp_count++; | |
1814 | lpe_count = 0; | |
1815 | } | |
1816 | ||
902cc293 AK |
1817 | /* The .machine pseudo op allows to switch to a different CPU level in |
1818 | the asm listing. The current CPU setting can be stored on a stack | |
1dd53816 | 1819 | with .machine push and restored with .machine pop. */ |
902cc293 AK |
1820 | |
1821 | static void | |
1822 | s390_machine (int ignore ATTRIBUTE_UNUSED) | |
1823 | { | |
1824 | char *cpu_string; | |
1825 | #define MAX_HISTORY 100 | |
1826 | static unsigned int *cpu_history; | |
1827 | static int curr_hist; | |
1828 | ||
1829 | SKIP_WHITESPACE (); | |
1830 | ||
1831 | if (*input_line_pointer == '"') | |
1832 | { | |
1833 | int len; | |
1834 | cpu_string = demand_copy_C_string (&len); | |
1835 | } | |
1836 | else | |
1837 | { | |
1838 | char c; | |
1839 | cpu_string = input_line_pointer; | |
1840 | c = get_symbol_end (); | |
1841 | cpu_string = xstrdup (cpu_string); | |
1842 | *input_line_pointer = c; | |
1843 | } | |
1844 | ||
1845 | if (cpu_string != NULL) | |
1846 | { | |
1847 | unsigned int old_cpu = current_cpu; | |
1848 | unsigned int new_cpu; | |
902cc293 AK |
1849 | |
1850 | if (strcmp (cpu_string, "push") == 0) | |
1851 | { | |
1852 | if (cpu_history == NULL) | |
1853 | cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history)); | |
1854 | ||
1855 | if (curr_hist >= MAX_HISTORY) | |
1856 | as_bad (_(".machine stack overflow")); | |
1857 | else | |
1858 | cpu_history[curr_hist++] = current_cpu; | |
1859 | } | |
1860 | else if (strcmp (cpu_string, "pop") == 0) | |
1861 | { | |
1862 | if (curr_hist <= 0) | |
1863 | as_bad (_(".machine stack underflow")); | |
1864 | else | |
1865 | current_cpu = cpu_history[--curr_hist]; | |
1866 | } | |
1867 | else if ((new_cpu = s390_parse_cpu (cpu_string)) != (unsigned int)-1) | |
1868 | current_cpu = new_cpu; | |
1869 | else | |
1870 | as_bad (_("invalid machine `%s'"), cpu_string); | |
1871 | ||
1872 | if (current_cpu != old_cpu) | |
1873 | s390_setup_opcodes (); | |
1874 | } | |
1875 | ||
1876 | demand_empty_rest_of_line (); | |
1877 | } | |
1878 | ||
1dd53816 AK |
1879 | /* The .machinemode pseudo op allows to switch to a different |
1880 | architecture mode in the asm listing. The current architecture | |
1881 | mode setting can be stored on a stack with .machinemode push and | |
1882 | restored with .machinemode pop. */ | |
1883 | ||
1884 | static void | |
1885 | s390_machinemode (int ignore ATTRIBUTE_UNUSED) | |
1886 | { | |
1887 | char *mode_string; | |
1888 | #define MAX_HISTORY 100 | |
1889 | static unsigned int *mode_history; | |
1890 | static int curr_hist; | |
1891 | ||
1892 | SKIP_WHITESPACE (); | |
1893 | ||
1894 | if (*input_line_pointer == '"') | |
1895 | { | |
1896 | int len; | |
1897 | mode_string = demand_copy_C_string (&len); | |
1898 | } | |
1899 | else | |
1900 | { | |
1901 | char c; | |
1902 | mode_string = input_line_pointer; | |
1903 | c = get_symbol_end (); | |
1904 | mode_string = xstrdup (mode_string); | |
1905 | *input_line_pointer = c; | |
1906 | } | |
1907 | ||
1908 | if (mode_string != NULL) | |
1909 | { | |
1910 | unsigned int old_mode_mask = current_mode_mask; | |
1911 | char *p; | |
1912 | ||
1913 | for (p = mode_string; *p != 0; p++) | |
1914 | *p = TOLOWER (*p); | |
1915 | ||
1916 | if (strcmp (mode_string, "push") == 0) | |
1917 | { | |
1918 | if (mode_history == NULL) | |
1919 | mode_history = xmalloc (MAX_HISTORY * sizeof (*mode_history)); | |
1920 | ||
1921 | if (curr_hist >= MAX_HISTORY) | |
1922 | as_bad (_(".machinemode stack overflow")); | |
1923 | else | |
1924 | mode_history[curr_hist++] = current_mode_mask; | |
1925 | } | |
1926 | else if (strcmp (mode_string, "pop") == 0) | |
1927 | { | |
1928 | if (curr_hist <= 0) | |
1929 | as_bad (_(".machinemode stack underflow")); | |
1930 | else | |
1931 | current_mode_mask = mode_history[--curr_hist]; | |
1932 | } | |
1933 | else | |
1934 | { | |
1935 | if (strcmp (mode_string, "esa") == 0) | |
1936 | current_mode_mask = 1 << S390_OPCODE_ESA; | |
1937 | else if (strcmp (mode_string, "zarch") == 0) | |
1938 | { | |
1939 | if (s390_arch_size == 32) | |
1940 | set_highgprs_p = TRUE; | |
1941 | current_mode_mask = 1 << S390_OPCODE_ZARCH; | |
1942 | } | |
1943 | else if (strcmp (mode_string, "zarch_nohighgprs") == 0) | |
1944 | current_mode_mask = 1 << S390_OPCODE_ZARCH; | |
1945 | else | |
1946 | as_bad (_("invalid machine `%s'"), mode_string); | |
1947 | } | |
1948 | ||
1949 | if (current_mode_mask != old_mode_mask) | |
1950 | s390_setup_opcodes (); | |
1951 | } | |
1952 | ||
1953 | demand_empty_rest_of_line (); | |
1954 | } | |
1955 | ||
a85d7ed0 | 1956 | char * |
499ac353 | 1957 | md_atof (int type, char *litp, int *sizep) |
a85d7ed0 | 1958 | { |
499ac353 | 1959 | return ieee_md_atof (type, litp, sizep, TRUE); |
a85d7ed0 NC |
1960 | } |
1961 | ||
1962 | /* Align a section (I don't know why this is machine dependent). */ | |
1963 | ||
1964 | valueT | |
5a49b8ac | 1965 | md_section_align (asection *seg, valueT addr) |
a85d7ed0 NC |
1966 | { |
1967 | int align = bfd_get_section_alignment (stdoutput, seg); | |
1968 | ||
1969 | return ((addr + (1 << align) - 1) & (-1 << align)); | |
1970 | } | |
1971 | ||
1972 | /* We don't have any form of relaxing. */ | |
1973 | ||
1974 | int | |
5a49b8ac AM |
1975 | md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED, |
1976 | asection *seg ATTRIBUTE_UNUSED) | |
a85d7ed0 NC |
1977 | { |
1978 | abort (); | |
1979 | return 0; | |
1980 | } | |
1981 | ||
1982 | /* Convert a machine dependent frag. We never generate these. */ | |
1983 | ||
1984 | void | |
5a49b8ac AM |
1985 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, |
1986 | asection *sec ATTRIBUTE_UNUSED, | |
1987 | fragS *fragp ATTRIBUTE_UNUSED) | |
a85d7ed0 NC |
1988 | { |
1989 | abort (); | |
1990 | } | |
1991 | ||
1992 | symbolS * | |
5a49b8ac | 1993 | md_undefined_symbol (char *name) |
a85d7ed0 | 1994 | { |
98d3f06f | 1995 | if (*name == '_' && *(name + 1) == 'G' |
07726851 | 1996 | && strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0) |
98d3f06f KH |
1997 | { |
1998 | if (!GOT_symbol) | |
1999 | { | |
2000 | if (symbol_find (name)) | |
2001 | as_bad (_("GOT already in symbol table")); | |
2002 | GOT_symbol = symbol_new (name, undefined_section, | |
2003 | (valueT) 0, &zero_address_frag); | |
2004 | } | |
2005 | return GOT_symbol; | |
2006 | } | |
a85d7ed0 NC |
2007 | return 0; |
2008 | } | |
2009 | ||
2010 | /* Functions concerning relocs. */ | |
2011 | ||
2012 | /* The location from which a PC relative jump should be calculated, | |
2013 | given a PC relative reloc. */ | |
2014 | ||
2015 | long | |
5a49b8ac | 2016 | md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
2017 | { |
2018 | return fixp->fx_frag->fr_address + fixp->fx_where; | |
2019 | } | |
2020 | ||
2021 | /* Here we decide which fixups can be adjusted to make them relative to | |
2022 | the beginning of the section instead of the symbol. Basically we need | |
2023 | to make sure that the dynamic relocations are done correctly, so in | |
2024 | some cases we force the original symbol to be used. */ | |
2025 | int | |
5a49b8ac | 2026 | tc_s390_fix_adjustable (fixS *fixP) |
a85d7ed0 | 2027 | { |
0a00dd48 MS |
2028 | /* Don't adjust references to merge sections. */ |
2029 | if ((S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_MERGE) != 0) | |
2030 | return 0; | |
a85d7ed0 | 2031 | /* adjust_reloc_syms doesn't know about the GOT. */ |
2a19f73f MS |
2032 | if ( fixP->fx_r_type == BFD_RELOC_16_GOTOFF |
2033 | || fixP->fx_r_type == BFD_RELOC_32_GOTOFF | |
2034 | || fixP->fx_r_type == BFD_RELOC_390_GOTOFF64 | |
2035 | || fixP->fx_r_type == BFD_RELOC_390_PLTOFF16 | |
2036 | || fixP->fx_r_type == BFD_RELOC_390_PLTOFF32 | |
2037 | || fixP->fx_r_type == BFD_RELOC_390_PLTOFF64 | |
fb798c50 | 2038 | || fixP->fx_r_type == BFD_RELOC_390_PLT12DBL |
a85d7ed0 | 2039 | || fixP->fx_r_type == BFD_RELOC_390_PLT16DBL |
fb798c50 | 2040 | || fixP->fx_r_type == BFD_RELOC_390_PLT24DBL |
a85d7ed0 NC |
2041 | || fixP->fx_r_type == BFD_RELOC_390_PLT32 |
2042 | || fixP->fx_r_type == BFD_RELOC_390_PLT32DBL | |
2043 | || fixP->fx_r_type == BFD_RELOC_390_PLT64 | |
2044 | || fixP->fx_r_type == BFD_RELOC_390_GOT12 | |
933fbc29 | 2045 | || fixP->fx_r_type == BFD_RELOC_390_GOT20 |
a85d7ed0 NC |
2046 | || fixP->fx_r_type == BFD_RELOC_390_GOT16 |
2047 | || fixP->fx_r_type == BFD_RELOC_32_GOT_PCREL | |
2048 | || fixP->fx_r_type == BFD_RELOC_390_GOT64 | |
07855bec | 2049 | || fixP->fx_r_type == BFD_RELOC_390_GOTENT |
2a19f73f MS |
2050 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT12 |
2051 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT16 | |
933fbc29 | 2052 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT20 |
2a19f73f MS |
2053 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT32 |
2054 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT64 | |
2055 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLTENT | |
1971b29d MS |
2056 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LOAD |
2057 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GDCALL | |
2058 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDCALL | |
2059 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GD32 | |
2060 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GD64 | |
2061 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE12 | |
933fbc29 | 2062 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE20 |
1971b29d MS |
2063 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE32 |
2064 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE64 | |
2065 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDM32 | |
2066 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDM64 | |
2067 | || fixP->fx_r_type == BFD_RELOC_390_TLS_IE32 | |
2068 | || fixP->fx_r_type == BFD_RELOC_390_TLS_IE64 | |
2069 | || fixP->fx_r_type == BFD_RELOC_390_TLS_IEENT | |
2070 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LE32 | |
2071 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LE64 | |
2072 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDO32 | |
2073 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDO64 | |
2074 | || fixP->fx_r_type == BFD_RELOC_390_TLS_DTPMOD | |
2075 | || fixP->fx_r_type == BFD_RELOC_390_TLS_DTPOFF | |
2076 | || fixP->fx_r_type == BFD_RELOC_390_TLS_TPOFF | |
a85d7ed0 NC |
2077 | || fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT |
2078 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
2079 | return 0; | |
2080 | return 1; | |
2081 | } | |
2082 | ||
b8edc45c | 2083 | /* Return true if we must always emit a reloc for a type and false if |
c03099e6 | 2084 | there is some hope of resolving it at assembly time. */ |
b8edc45c | 2085 | int |
5a49b8ac | 2086 | tc_s390_force_relocation (struct fix *fixp) |
b8edc45c MS |
2087 | { |
2088 | /* Ensure we emit a relocation for every reference to the global | |
2089 | offset table or to the procedure link table. */ | |
2090 | switch (fixp->fx_r_type) | |
2091 | { | |
2092 | case BFD_RELOC_390_GOT12: | |
933fbc29 | 2093 | case BFD_RELOC_390_GOT20: |
b8edc45c MS |
2094 | case BFD_RELOC_32_GOT_PCREL: |
2095 | case BFD_RELOC_32_GOTOFF: | |
2a19f73f MS |
2096 | case BFD_RELOC_390_GOTOFF64: |
2097 | case BFD_RELOC_390_PLTOFF16: | |
2098 | case BFD_RELOC_390_PLTOFF32: | |
2099 | case BFD_RELOC_390_PLTOFF64: | |
b8edc45c MS |
2100 | case BFD_RELOC_390_GOTPC: |
2101 | case BFD_RELOC_390_GOT16: | |
2102 | case BFD_RELOC_390_GOTPCDBL: | |
2103 | case BFD_RELOC_390_GOT64: | |
2104 | case BFD_RELOC_390_GOTENT: | |
2105 | case BFD_RELOC_390_PLT32: | |
fb798c50 | 2106 | case BFD_RELOC_390_PLT12DBL: |
b8edc45c | 2107 | case BFD_RELOC_390_PLT16DBL: |
fb798c50 | 2108 | case BFD_RELOC_390_PLT24DBL: |
b8edc45c MS |
2109 | case BFD_RELOC_390_PLT32DBL: |
2110 | case BFD_RELOC_390_PLT64: | |
2a19f73f MS |
2111 | case BFD_RELOC_390_GOTPLT12: |
2112 | case BFD_RELOC_390_GOTPLT16: | |
933fbc29 | 2113 | case BFD_RELOC_390_GOTPLT20: |
2a19f73f MS |
2114 | case BFD_RELOC_390_GOTPLT32: |
2115 | case BFD_RELOC_390_GOTPLT64: | |
2116 | case BFD_RELOC_390_GOTPLTENT: | |
b8edc45c MS |
2117 | return 1; |
2118 | default: | |
5bb3703f | 2119 | break; |
b8edc45c | 2120 | } |
a161fe53 | 2121 | |
ae6063d4 | 2122 | return generic_force_reloc (fixp); |
b8edc45c MS |
2123 | } |
2124 | ||
a85d7ed0 NC |
2125 | /* Apply a fixup to the object code. This is called for all the |
2126 | fixups we generated by the call to fix_new_exp, above. In the call | |
2127 | above we used a reloc code which was the largest legal reloc code | |
2128 | plus the operand index. Here we undo that to recover the operand | |
2129 | index. At this point all symbol values should be fully resolved, | |
2130 | and we attempt to completely resolve the reloc. If we can not do | |
2131 | that, we determine the correct reloc code and put it back in the | |
2132 | fixup. */ | |
2133 | ||
94f592af | 2134 | void |
5a49b8ac | 2135 | md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
2136 | { |
2137 | char *where; | |
98d3f06f | 2138 | valueT value = *valP; |
a85d7ed0 | 2139 | |
94f592af | 2140 | where = fixP->fx_frag->fr_literal + fixP->fx_where; |
a85d7ed0 | 2141 | |
98d3f06f | 2142 | if (fixP->fx_subsy != NULL) |
f1fc51da | 2143 | as_bad_where (fixP->fx_file, fixP->fx_line, |
20203fb9 | 2144 | _("cannot emit relocation %s against subsy symbol %s"), |
f1fc51da MS |
2145 | bfd_get_reloc_code_name (fixP->fx_r_type), |
2146 | S_GET_NAME (fixP->fx_subsy)); | |
98d3f06f KH |
2147 | |
2148 | if (fixP->fx_addsy != NULL) | |
07855bec | 2149 | { |
94f592af NC |
2150 | if (fixP->fx_pcrel) |
2151 | value += fixP->fx_frag->fr_address + fixP->fx_where; | |
07855bec NC |
2152 | } |
2153 | else | |
94f592af | 2154 | fixP->fx_done = 1; |
a85d7ed0 | 2155 | |
94f592af | 2156 | if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED) |
07855bec NC |
2157 | { |
2158 | const struct s390_operand *operand; | |
2159 | int opindex; | |
198ce79b | 2160 | |
94f592af | 2161 | opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED; |
07855bec | 2162 | operand = &s390_operands[opindex]; |
198ce79b | 2163 | |
94f592af | 2164 | if (fixP->fx_done) |
07855bec NC |
2165 | { |
2166 | /* Insert the fully resolved operand value. */ | |
2132e3a3 AM |
2167 | s390_insert_operand ((unsigned char *) where, operand, |
2168 | (offsetT) value, fixP->fx_file, fixP->fx_line); | |
94f592af | 2169 | return; |
07855bec | 2170 | } |
198ce79b | 2171 | |
07855bec NC |
2172 | /* Determine a BFD reloc value based on the operand information. |
2173 | We are only prepared to turn a few of the operands into | |
2174 | relocs. */ | |
94f592af | 2175 | fixP->fx_offset = value; |
07855bec NC |
2176 | if (operand->bits == 12 && operand->shift == 20) |
2177 | { | |
94f592af NC |
2178 | fixP->fx_size = 2; |
2179 | fixP->fx_where += 2; | |
2180 | fixP->fx_r_type = BFD_RELOC_390_12; | |
07855bec NC |
2181 | } |
2182 | else if (operand->bits == 12 && operand->shift == 36) | |
2183 | { | |
94f592af NC |
2184 | fixP->fx_size = 2; |
2185 | fixP->fx_where += 4; | |
2186 | fixP->fx_r_type = BFD_RELOC_390_12; | |
07855bec | 2187 | } |
933fbc29 MS |
2188 | else if (operand->bits == 20 && operand->shift == 20) |
2189 | { | |
2190 | fixP->fx_size = 2; | |
2191 | fixP->fx_where += 2; | |
2192 | fixP->fx_r_type = BFD_RELOC_390_20; | |
2193 | } | |
07855bec NC |
2194 | else if (operand->bits == 8 && operand->shift == 8) |
2195 | { | |
94f592af NC |
2196 | fixP->fx_size = 1; |
2197 | fixP->fx_where += 1; | |
2198 | fixP->fx_r_type = BFD_RELOC_8; | |
07855bec | 2199 | } |
fb798c50 AK |
2200 | else if (operand->bits == 12 && operand->shift == 12 |
2201 | && (operand->flags & S390_OPERAND_PCREL)) | |
2202 | { | |
2203 | fixP->fx_size = 2; | |
2204 | fixP->fx_where += 1; | |
2205 | fixP->fx_offset += 1; | |
2206 | fixP->fx_r_type = BFD_RELOC_390_PC12DBL; | |
2207 | } | |
07855bec NC |
2208 | else if (operand->bits == 16 && operand->shift == 16) |
2209 | { | |
94f592af NC |
2210 | fixP->fx_size = 2; |
2211 | fixP->fx_where += 2; | |
07855bec NC |
2212 | if (operand->flags & S390_OPERAND_PCREL) |
2213 | { | |
94f592af NC |
2214 | fixP->fx_r_type = BFD_RELOC_390_PC16DBL; |
2215 | fixP->fx_offset += 2; | |
07855bec NC |
2216 | } |
2217 | else | |
94f592af | 2218 | fixP->fx_r_type = BFD_RELOC_16; |
07855bec | 2219 | } |
fb798c50 AK |
2220 | else if (operand->bits == 24 && operand->shift == 24 |
2221 | && (operand->flags & S390_OPERAND_PCREL)) | |
2222 | { | |
2223 | fixP->fx_size = 3; | |
2224 | fixP->fx_where += 3; | |
2225 | fixP->fx_offset += 3; | |
2226 | fixP->fx_r_type = BFD_RELOC_390_PC24DBL; | |
2227 | } | |
16a419ba NC |
2228 | else if (operand->bits == 32 && operand->shift == 16 |
2229 | && (operand->flags & S390_OPERAND_PCREL)) | |
07855bec | 2230 | { |
94f592af NC |
2231 | fixP->fx_size = 4; |
2232 | fixP->fx_where += 2; | |
2233 | fixP->fx_offset += 2; | |
2234 | fixP->fx_r_type = BFD_RELOC_390_PC32DBL; | |
07855bec | 2235 | } |
a85d7ed0 | 2236 | else |
07855bec NC |
2237 | { |
2238 | char *sfile; | |
2239 | unsigned int sline; | |
198ce79b | 2240 | |
07855bec NC |
2241 | /* Use expr_symbol_where to see if this is an expression |
2242 | symbol. */ | |
94f592af NC |
2243 | if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline)) |
2244 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
07855bec NC |
2245 | _("unresolved expression that must be resolved")); |
2246 | else | |
94f592af | 2247 | as_bad_where (fixP->fx_file, fixP->fx_line, |
07855bec | 2248 | _("unsupported relocation type")); |
94f592af NC |
2249 | fixP->fx_done = 1; |
2250 | return; | |
07855bec | 2251 | } |
a85d7ed0 | 2252 | } |
07855bec NC |
2253 | else |
2254 | { | |
94f592af | 2255 | switch (fixP->fx_r_type) |
07855bec NC |
2256 | { |
2257 | case BFD_RELOC_8: | |
94f592af | 2258 | if (fixP->fx_pcrel) |
07855bec | 2259 | abort (); |
94f592af | 2260 | if (fixP->fx_done) |
07855bec NC |
2261 | md_number_to_chars (where, value, 1); |
2262 | break; | |
2263 | case BFD_RELOC_390_12: | |
2264 | case BFD_RELOC_390_GOT12: | |
2a19f73f | 2265 | case BFD_RELOC_390_GOTPLT12: |
fb798c50 AK |
2266 | case BFD_RELOC_390_PC12DBL: |
2267 | case BFD_RELOC_390_PLT12DBL: | |
2268 | if (fixP->fx_pcrel) | |
2269 | value++; | |
2270 | ||
94f592af | 2271 | if (fixP->fx_done) |
07855bec NC |
2272 | { |
2273 | unsigned short mop; | |
2274 | ||
fb798c50 AK |
2275 | if (fixP->fx_pcrel) |
2276 | value >>= 1; | |
2277 | ||
07855bec NC |
2278 | mop = bfd_getb16 ((unsigned char *) where); |
2279 | mop |= (unsigned short) (value & 0xfff); | |
2280 | bfd_putb16 ((bfd_vma) mop, (unsigned char *) where); | |
198ce79b | 2281 | } |
07855bec | 2282 | break; |
198ce79b | 2283 | |
933fbc29 MS |
2284 | case BFD_RELOC_390_20: |
2285 | case BFD_RELOC_390_GOT20: | |
2286 | case BFD_RELOC_390_GOTPLT20: | |
2287 | if (fixP->fx_done) | |
2288 | { | |
2289 | unsigned int mop; | |
2290 | mop = bfd_getb32 ((unsigned char *) where); | |
2291 | mop |= (unsigned int) ((value & 0xfff) << 8 | | |
2292 | (value & 0xff000) >> 12); | |
2293 | bfd_putb32 ((bfd_vma) mop, (unsigned char *) where); | |
2294 | } | |
2295 | break; | |
2296 | ||
07855bec NC |
2297 | case BFD_RELOC_16: |
2298 | case BFD_RELOC_GPREL16: | |
2299 | case BFD_RELOC_16_GOT_PCREL: | |
2300 | case BFD_RELOC_16_GOTOFF: | |
94f592af NC |
2301 | if (fixP->fx_pcrel) |
2302 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
20203fb9 | 2303 | _("cannot emit PC relative %s relocation%s%s"), |
94f592af NC |
2304 | bfd_get_reloc_code_name (fixP->fx_r_type), |
2305 | fixP->fx_addsy != NULL ? " against " : "", | |
2306 | (fixP->fx_addsy != NULL | |
2307 | ? S_GET_NAME (fixP->fx_addsy) | |
07855bec | 2308 | : "")); |
94f592af | 2309 | if (fixP->fx_done) |
07855bec NC |
2310 | md_number_to_chars (where, value, 2); |
2311 | break; | |
2312 | case BFD_RELOC_390_GOT16: | |
2a19f73f MS |
2313 | case BFD_RELOC_390_PLTOFF16: |
2314 | case BFD_RELOC_390_GOTPLT16: | |
94f592af | 2315 | if (fixP->fx_done) |
07855bec NC |
2316 | md_number_to_chars (where, value, 2); |
2317 | break; | |
2318 | case BFD_RELOC_390_PC16DBL: | |
2319 | case BFD_RELOC_390_PLT16DBL: | |
2320 | value += 2; | |
94f592af | 2321 | if (fixP->fx_done) |
07855bec NC |
2322 | md_number_to_chars (where, (offsetT) value >> 1, 2); |
2323 | break; | |
2324 | ||
fb798c50 AK |
2325 | case BFD_RELOC_390_PC24DBL: |
2326 | case BFD_RELOC_390_PLT24DBL: | |
2327 | value += 3; | |
2328 | if (fixP->fx_done) | |
2329 | { | |
2330 | unsigned int mop; | |
2331 | value >>= 1; | |
2332 | ||
2333 | mop = bfd_getb32 ((unsigned char *) where - 1); | |
2334 | mop |= (unsigned int) (value & 0xffffff); | |
2335 | bfd_putb32 ((bfd_vma) mop, (unsigned char *) where - 1); | |
2336 | } | |
2337 | break; | |
2338 | ||
07855bec | 2339 | case BFD_RELOC_32: |
94f592af NC |
2340 | if (fixP->fx_pcrel) |
2341 | fixP->fx_r_type = BFD_RELOC_32_PCREL; | |
07855bec | 2342 | else |
94f592af NC |
2343 | fixP->fx_r_type = BFD_RELOC_32; |
2344 | if (fixP->fx_done) | |
07855bec NC |
2345 | md_number_to_chars (where, value, 4); |
2346 | break; | |
2347 | case BFD_RELOC_32_PCREL: | |
2348 | case BFD_RELOC_32_BASEREL: | |
94f592af NC |
2349 | fixP->fx_r_type = BFD_RELOC_32_PCREL; |
2350 | if (fixP->fx_done) | |
07855bec NC |
2351 | md_number_to_chars (where, value, 4); |
2352 | break; | |
2353 | case BFD_RELOC_32_GOT_PCREL: | |
2a19f73f | 2354 | case BFD_RELOC_390_PLTOFF32: |
07855bec | 2355 | case BFD_RELOC_390_PLT32: |
2a19f73f | 2356 | case BFD_RELOC_390_GOTPLT32: |
94f592af | 2357 | if (fixP->fx_done) |
07855bec NC |
2358 | md_number_to_chars (where, value, 4); |
2359 | break; | |
2360 | case BFD_RELOC_390_PC32DBL: | |
2361 | case BFD_RELOC_390_PLT32DBL: | |
2362 | case BFD_RELOC_390_GOTPCDBL: | |
2363 | case BFD_RELOC_390_GOTENT: | |
2a19f73f | 2364 | case BFD_RELOC_390_GOTPLTENT: |
07855bec | 2365 | value += 2; |
94f592af | 2366 | if (fixP->fx_done) |
07855bec NC |
2367 | md_number_to_chars (where, (offsetT) value >> 1, 4); |
2368 | break; | |
2369 | ||
2370 | case BFD_RELOC_32_GOTOFF: | |
94f592af | 2371 | if (fixP->fx_done) |
07726851 | 2372 | md_number_to_chars (where, value, sizeof (int)); |
07855bec NC |
2373 | break; |
2374 | ||
2a19f73f MS |
2375 | case BFD_RELOC_390_GOTOFF64: |
2376 | if (fixP->fx_done) | |
2377 | md_number_to_chars (where, value, 8); | |
2378 | break; | |
2379 | ||
07855bec | 2380 | case BFD_RELOC_390_GOT64: |
2a19f73f | 2381 | case BFD_RELOC_390_PLTOFF64: |
07855bec | 2382 | case BFD_RELOC_390_PLT64: |
2a19f73f | 2383 | case BFD_RELOC_390_GOTPLT64: |
94f592af | 2384 | if (fixP->fx_done) |
07855bec NC |
2385 | md_number_to_chars (where, value, 8); |
2386 | break; | |
2387 | ||
2388 | case BFD_RELOC_64: | |
94f592af NC |
2389 | if (fixP->fx_pcrel) |
2390 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
07855bec | 2391 | else |
94f592af NC |
2392 | fixP->fx_r_type = BFD_RELOC_64; |
2393 | if (fixP->fx_done) | |
07855bec NC |
2394 | md_number_to_chars (where, value, 8); |
2395 | break; | |
2396 | ||
2397 | case BFD_RELOC_64_PCREL: | |
94f592af NC |
2398 | fixP->fx_r_type = BFD_RELOC_64_PCREL; |
2399 | if (fixP->fx_done) | |
07855bec NC |
2400 | md_number_to_chars (where, value, 8); |
2401 | break; | |
2402 | ||
2403 | case BFD_RELOC_VTABLE_INHERIT: | |
2404 | case BFD_RELOC_VTABLE_ENTRY: | |
94f592af NC |
2405 | fixP->fx_done = 0; |
2406 | return; | |
07855bec | 2407 | |
1971b29d MS |
2408 | case BFD_RELOC_390_TLS_LOAD: |
2409 | case BFD_RELOC_390_TLS_GDCALL: | |
2410 | case BFD_RELOC_390_TLS_LDCALL: | |
2411 | case BFD_RELOC_390_TLS_GD32: | |
2412 | case BFD_RELOC_390_TLS_GD64: | |
2413 | case BFD_RELOC_390_TLS_GOTIE12: | |
933fbc29 | 2414 | case BFD_RELOC_390_TLS_GOTIE20: |
1971b29d MS |
2415 | case BFD_RELOC_390_TLS_GOTIE32: |
2416 | case BFD_RELOC_390_TLS_GOTIE64: | |
2417 | case BFD_RELOC_390_TLS_LDM32: | |
2418 | case BFD_RELOC_390_TLS_LDM64: | |
2419 | case BFD_RELOC_390_TLS_IE32: | |
2420 | case BFD_RELOC_390_TLS_IE64: | |
2421 | case BFD_RELOC_390_TLS_LE32: | |
2422 | case BFD_RELOC_390_TLS_LE64: | |
2423 | case BFD_RELOC_390_TLS_LDO32: | |
2424 | case BFD_RELOC_390_TLS_LDO64: | |
2425 | case BFD_RELOC_390_TLS_DTPMOD: | |
2426 | case BFD_RELOC_390_TLS_DTPOFF: | |
2427 | case BFD_RELOC_390_TLS_TPOFF: | |
7c1d0959 | 2428 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
1971b29d MS |
2429 | /* Fully resolved at link time. */ |
2430 | break; | |
2431 | case BFD_RELOC_390_TLS_IEENT: | |
2432 | /* Fully resolved at link time. */ | |
7c1d0959 | 2433 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
1971b29d MS |
2434 | value += 2; |
2435 | break; | |
2436 | ||
07855bec NC |
2437 | default: |
2438 | { | |
94f592af | 2439 | const char *reloc_name = bfd_get_reloc_code_name (fixP->fx_r_type); |
198ce79b | 2440 | |
07855bec | 2441 | if (reloc_name != NULL) |
20203fb9 | 2442 | as_fatal (_("Gas failure, reloc type %s\n"), reloc_name); |
07855bec | 2443 | else |
20203fb9 | 2444 | as_fatal (_("Gas failure, reloc type #%i\n"), fixP->fx_r_type); |
07855bec NC |
2445 | } |
2446 | } | |
a85d7ed0 | 2447 | |
94f592af | 2448 | fixP->fx_offset = value; |
07855bec | 2449 | } |
a85d7ed0 NC |
2450 | } |
2451 | ||
2452 | /* Generate a reloc for a fixup. */ | |
2453 | ||
2454 | arelent * | |
5a49b8ac | 2455 | tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp) |
a85d7ed0 NC |
2456 | { |
2457 | bfd_reloc_code_real_type code; | |
2458 | arelent *reloc; | |
2459 | ||
2460 | code = fixp->fx_r_type; | |
07855bec NC |
2461 | if (GOT_symbol && fixp->fx_addsy == GOT_symbol) |
2462 | { | |
16a419ba NC |
2463 | if ( (s390_arch_size == 32 && code == BFD_RELOC_32_PCREL) |
2464 | || (s390_arch_size == 64 && code == BFD_RELOC_64_PCREL)) | |
07855bec NC |
2465 | code = BFD_RELOC_390_GOTPC; |
2466 | if (code == BFD_RELOC_390_PC32DBL) | |
2467 | code = BFD_RELOC_390_GOTPCDBL; | |
2468 | } | |
a85d7ed0 NC |
2469 | |
2470 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
2471 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); | |
2472 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
2473 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
2474 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
2475 | if (reloc->howto == NULL) | |
2476 | { | |
2477 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
98d3f06f KH |
2478 | _("cannot represent relocation type %s"), |
2479 | bfd_get_reloc_code_name (code)); | |
a85d7ed0 NC |
2480 | /* Set howto to a garbage value so that we can keep going. */ |
2481 | reloc->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); | |
9c2799c2 | 2482 | gas_assert (reloc->howto != NULL); |
a85d7ed0 NC |
2483 | } |
2484 | reloc->addend = fixp->fx_offset; | |
2485 | ||
2486 | return reloc; | |
2487 | } | |
75e21f08 JJ |
2488 | |
2489 | void | |
5a49b8ac | 2490 | s390_cfi_frame_initial_instructions (void) |
75e21f08 JJ |
2491 | { |
2492 | cfi_add_CFA_def_cfa (15, s390_arch_size == 64 ? 160 : 96); | |
2493 | } | |
2494 | ||
2495 | int | |
1df69f4f | 2496 | tc_s390_regname_to_dw2regnum (char *regname) |
75e21f08 JJ |
2497 | { |
2498 | int regnum = -1; | |
2499 | ||
2500 | if (regname[0] != 'c' && regname[0] != 'a') | |
2501 | { | |
2502 | regnum = reg_name_search (pre_defined_registers, REG_NAME_CNT, regname); | |
2503 | if (regname[0] == 'f' && regnum != -1) | |
2504 | regnum += 16; | |
2505 | } | |
2506 | else if (strcmp (regname, "ap") == 0) | |
2507 | regnum = 32; | |
2508 | else if (strcmp (regname, "cc") == 0) | |
2509 | regnum = 33; | |
2510 | return regnum; | |
2511 | } | |
55786da2 AK |
2512 | |
2513 | void | |
2514 | s390_elf_final_processing (void) | |
2515 | { | |
1dd53816 | 2516 | if (set_highgprs_p) |
55786da2 AK |
2517 | elf_elfheader (stdoutput)->e_flags |= EF_S390_HIGH_GPRS; |
2518 | } |