Commit | Line | Data |
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a85d7ed0 | 1 | /* tc-s390.c -- Assemble for the S390 |
20203fb9 | 2 | Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, |
87975d2a | 3 | 2009, 2010 Free Software Foundation, Inc. |
a85d7ed0 NC |
4 | Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). |
5 | ||
6 | This file is part of GAS, the GNU Assembler. | |
7 | ||
8 | GAS is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 10 | the Free Software Foundation; either version 3, or (at your option) |
a85d7ed0 NC |
11 | any later version. |
12 | ||
13 | GAS is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GAS; see the file COPYING. If not, write to the Free | |
4b4da160 NC |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ | |
a85d7ed0 | 22 | |
a85d7ed0 | 23 | #include "as.h" |
3882b010 | 24 | #include "safe-ctype.h" |
a85d7ed0 NC |
25 | #include "subsegs.h" |
26 | #include "struc-symbol.h" | |
a161fe53 | 27 | #include "dwarf2dbg.h" |
75e21f08 | 28 | #include "dw2gencfi.h" |
a85d7ed0 NC |
29 | |
30 | #include "opcode/s390.h" | |
31 | #include "elf/s390.h" | |
32 | ||
16a419ba | 33 | /* The default architecture. */ |
a85d7ed0 NC |
34 | #ifndef DEFAULT_ARCH |
35 | #define DEFAULT_ARCH "s390" | |
36 | #endif | |
37 | static char *default_arch = DEFAULT_ARCH; | |
38 | /* Either 32 or 64, selects file format. */ | |
37a58793 MS |
39 | static int s390_arch_size = 0; |
40 | ||
1e8766d7 AK |
41 | /* If no -march option was given default to the highest available CPU. |
42 | Since with S/390 a newer CPU always supports everything from its | |
43 | predecessors this will accept every valid asm input. */ | |
44 | static unsigned int current_cpu = S390_OPCODE_MAXCPU - 1; | |
37a58793 | 45 | static unsigned int current_mode_mask = 0; |
a85d7ed0 | 46 | |
b34976b6 | 47 | /* Whether to use user friendly register names. Default is TRUE. */ |
a85d7ed0 | 48 | #ifndef TARGET_REG_NAMES_P |
b34976b6 | 49 | #define TARGET_REG_NAMES_P TRUE |
a85d7ed0 NC |
50 | #endif |
51 | ||
b34976b6 | 52 | static bfd_boolean reg_names_p = TARGET_REG_NAMES_P; |
a85d7ed0 | 53 | |
16a419ba | 54 | /* Set to TRUE if we want to warn about zero base/index registers. */ |
b34976b6 | 55 | static bfd_boolean warn_areg_zero = FALSE; |
16a419ba | 56 | |
a85d7ed0 NC |
57 | /* Generic assembler global variables which must be defined by all |
58 | targets. */ | |
59 | ||
60 | const char comment_chars[] = "#"; | |
61 | ||
62 | /* Characters which start a comment at the beginning of a line. */ | |
63 | const char line_comment_chars[] = "#"; | |
64 | ||
65 | /* Characters which may be used to separate multiple commands on a | |
66 | single line. */ | |
67 | const char line_separator_chars[] = ";"; | |
68 | ||
69 | /* Characters which are used to indicate an exponent in a floating | |
70 | point number. */ | |
71 | const char EXP_CHARS[] = "eE"; | |
72 | ||
73 | /* Characters which mean that a number is a floating point constant, | |
74 | as in 0d1.0. */ | |
75 | const char FLT_CHARS[] = "dD"; | |
76 | ||
75e21f08 JJ |
77 | /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */ |
78 | int s390_cie_data_alignment; | |
79 | ||
a85d7ed0 NC |
80 | /* The target specific pseudo-ops which we support. */ |
81 | ||
82 | /* Define the prototypes for the pseudo-ops */ | |
5a49b8ac AM |
83 | static void s390_byte (int); |
84 | static void s390_elf_cons (int); | |
85 | static void s390_bss (int); | |
86 | static void s390_insn (int); | |
87 | static void s390_literals (int); | |
a85d7ed0 NC |
88 | |
89 | const pseudo_typeS md_pseudo_table[] = | |
90 | { | |
91 | { "align", s_align_bytes, 0 }, | |
98d3f06f | 92 | /* Pseudo-ops which must be defined. */ |
198ce79b | 93 | { "bss", s390_bss, 0 }, |
a85d7ed0 NC |
94 | { "insn", s390_insn, 0 }, |
95 | /* Pseudo-ops which must be overridden. */ | |
96 | { "byte", s390_byte, 0 }, | |
97 | { "short", s390_elf_cons, 2 }, | |
98 | { "long", s390_elf_cons, 4 }, | |
99 | { "quad", s390_elf_cons, 8 }, | |
100 | { "ltorg", s390_literals, 0 }, | |
38a57ae7 | 101 | { "string", stringer, 8 + 1 }, |
a85d7ed0 NC |
102 | { NULL, NULL, 0 } |
103 | }; | |
104 | ||
105 | ||
106 | /* Structure to hold information about predefined registers. */ | |
107 | struct pd_reg | |
108 | { | |
109 | char *name; | |
110 | int value; | |
111 | }; | |
112 | ||
113 | /* List of registers that are pre-defined: | |
114 | ||
115 | Each access register has a predefined name of the form: | |
116 | a<reg_num> which has the value <reg_num>. | |
117 | ||
118 | Each control register has a predefined name of the form: | |
119 | c<reg_num> which has the value <reg_num>. | |
120 | ||
121 | Each general register has a predefined name of the form: | |
122 | r<reg_num> which has the value <reg_num>. | |
123 | ||
124 | Each floating point register a has predefined name of the form: | |
125 | f<reg_num> which has the value <reg_num>. | |
126 | ||
127 | There are individual registers as well: | |
128 | sp has the value 15 | |
129 | lit has the value 12 | |
130 | ||
98d3f06f | 131 | The table is sorted. Suitable for searching by a binary search. */ |
a85d7ed0 NC |
132 | |
133 | static const struct pd_reg pre_defined_registers[] = | |
134 | { | |
135 | { "a0", 0 }, /* Access registers */ | |
136 | { "a1", 1 }, | |
137 | { "a10", 10 }, | |
138 | { "a11", 11 }, | |
139 | { "a12", 12 }, | |
140 | { "a13", 13 }, | |
141 | { "a14", 14 }, | |
142 | { "a15", 15 }, | |
143 | { "a2", 2 }, | |
144 | { "a3", 3 }, | |
145 | { "a4", 4 }, | |
146 | { "a5", 5 }, | |
147 | { "a6", 6 }, | |
148 | { "a7", 7 }, | |
149 | { "a8", 8 }, | |
150 | { "a9", 9 }, | |
151 | ||
152 | { "c0", 0 }, /* Control registers */ | |
153 | { "c1", 1 }, | |
154 | { "c10", 10 }, | |
155 | { "c11", 11 }, | |
156 | { "c12", 12 }, | |
157 | { "c13", 13 }, | |
158 | { "c14", 14 }, | |
159 | { "c15", 15 }, | |
160 | { "c2", 2 }, | |
161 | { "c3", 3 }, | |
162 | { "c4", 4 }, | |
163 | { "c5", 5 }, | |
164 | { "c6", 6 }, | |
165 | { "c7", 7 }, | |
166 | { "c8", 8 }, | |
167 | { "c9", 9 }, | |
168 | ||
169 | { "f0", 0 }, /* Floating point registers */ | |
198ce79b AJ |
170 | { "f1", 1 }, |
171 | { "f10", 10 }, | |
172 | { "f11", 11 }, | |
173 | { "f12", 12 }, | |
174 | { "f13", 13 }, | |
175 | { "f14", 14 }, | |
176 | { "f15", 15 }, | |
177 | { "f2", 2 }, | |
178 | { "f3", 3 }, | |
179 | { "f4", 4 }, | |
180 | { "f5", 5 }, | |
181 | { "f6", 6 }, | |
182 | { "f7", 7 }, | |
183 | { "f8", 8 }, | |
184 | { "f9", 9 }, | |
a85d7ed0 NC |
185 | |
186 | { "lit", 13 }, /* Pointer to literal pool */ | |
187 | ||
188 | { "r0", 0 }, /* General purpose registers */ | |
189 | { "r1", 1 }, | |
190 | { "r10", 10 }, | |
191 | { "r11", 11 }, | |
192 | { "r12", 12 }, | |
193 | { "r13", 13 }, | |
194 | { "r14", 14 }, | |
195 | { "r15", 15 }, | |
196 | { "r2", 2 }, | |
197 | { "r3", 3 }, | |
198 | { "r4", 4 }, | |
199 | { "r5", 5 }, | |
200 | { "r6", 6 }, | |
201 | { "r7", 7 }, | |
202 | { "r8", 8 }, | |
203 | { "r9", 9 }, | |
204 | ||
205 | { "sp", 15 }, /* Stack pointer */ | |
206 | ||
207 | }; | |
208 | ||
07726851 | 209 | #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg)) |
a85d7ed0 NC |
210 | |
211 | /* Given NAME, find the register number associated with that name, return | |
212 | the integer value associated with the given name or -1 on failure. */ | |
213 | ||
214 | static int | |
5a49b8ac | 215 | reg_name_search (const struct pd_reg *regs, int regcount, const char *name) |
a85d7ed0 NC |
216 | { |
217 | int middle, low, high; | |
218 | int cmp; | |
219 | ||
220 | low = 0; | |
221 | high = regcount - 1; | |
222 | ||
223 | do | |
224 | { | |
225 | middle = (low + high) / 2; | |
226 | cmp = strcasecmp (name, regs[middle].name); | |
227 | if (cmp < 0) | |
228 | high = middle - 1; | |
229 | else if (cmp > 0) | |
230 | low = middle + 1; | |
231 | else | |
232 | return regs[middle].value; | |
233 | } | |
234 | while (low <= high); | |
235 | ||
236 | return -1; | |
237 | } | |
238 | ||
239 | ||
240 | /* | |
241 | * Summary of register_name(). | |
242 | * | |
243 | * in: Input_line_pointer points to 1st char of operand. | |
244 | * | |
245 | * out: A expressionS. | |
246 | * The operand may have been a register: in this case, X_op == O_register, | |
247 | * X_add_number is set to the register number, and truth is returned. | |
248 | * Input_line_pointer->(next non-blank) char after operand, or is in its | |
249 | * original state. | |
250 | */ | |
251 | ||
b34976b6 | 252 | static bfd_boolean |
5a49b8ac | 253 | register_name (expressionS *expressionP) |
a85d7ed0 NC |
254 | { |
255 | int reg_number; | |
256 | char *name; | |
257 | char *start; | |
258 | char c; | |
259 | ||
468cced8 | 260 | /* Find the spelling of the operand. */ |
a85d7ed0 | 261 | start = name = input_line_pointer; |
3882b010 | 262 | if (name[0] == '%' && ISALPHA (name[1])) |
a85d7ed0 NC |
263 | name = ++input_line_pointer; |
264 | else | |
b34976b6 | 265 | return FALSE; |
a85d7ed0 NC |
266 | |
267 | c = get_symbol_end (); | |
268 | reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name); | |
269 | ||
468cced8 AM |
270 | /* Put back the delimiting char. */ |
271 | *input_line_pointer = c; | |
272 | ||
273 | /* Look to see if it's in the register table. */ | |
198ce79b | 274 | if (reg_number >= 0) |
a85d7ed0 NC |
275 | { |
276 | expressionP->X_op = O_register; | |
277 | expressionP->X_add_number = reg_number; | |
198ce79b | 278 | |
468cced8 | 279 | /* Make the rest nice. */ |
a85d7ed0 NC |
280 | expressionP->X_add_symbol = NULL; |
281 | expressionP->X_op_symbol = NULL; | |
b34976b6 | 282 | return TRUE; |
a85d7ed0 | 283 | } |
468cced8 AM |
284 | |
285 | /* Reset the line as if we had not done anything. */ | |
286 | input_line_pointer = start; | |
b34976b6 | 287 | return FALSE; |
a85d7ed0 NC |
288 | } |
289 | ||
290 | /* Local variables. */ | |
291 | ||
292 | /* Opformat hash table. */ | |
293 | static struct hash_control *s390_opformat_hash; | |
294 | ||
295 | /* Opcode hash table. */ | |
296 | static struct hash_control *s390_opcode_hash; | |
297 | ||
298 | /* Flags to set in the elf header */ | |
299 | static flagword s390_flags = 0; | |
300 | ||
301 | symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE_" */ | |
302 | ||
303 | #ifndef WORKING_DOT_WORD | |
2b4f075a HPN |
304 | int md_short_jump_size = 4; |
305 | int md_long_jump_size = 4; | |
a85d7ed0 NC |
306 | #endif |
307 | ||
5a38dc70 | 308 | const char *md_shortopts = "A:m:kVQ:"; |
a85d7ed0 NC |
309 | struct option md_longopts[] = { |
310 | {NULL, no_argument, NULL, 0} | |
311 | }; | |
07726851 | 312 | size_t md_longopts_size = sizeof (md_longopts); |
a85d7ed0 NC |
313 | |
314 | /* Initialize the default opcode arch and word size from the default | |
37a58793 | 315 | architecture name if not specified by an option. */ |
a85d7ed0 | 316 | static void |
5a49b8ac | 317 | init_default_arch (void) |
a85d7ed0 | 318 | { |
07726851 | 319 | if (strcmp (default_arch, "s390") == 0) |
07855bec | 320 | { |
37a58793 MS |
321 | if (s390_arch_size == 0) |
322 | s390_arch_size = 32; | |
07855bec | 323 | } |
07726851 | 324 | else if (strcmp (default_arch, "s390x") == 0) |
07855bec | 325 | { |
37a58793 MS |
326 | if (s390_arch_size == 0) |
327 | s390_arch_size = 64; | |
07855bec NC |
328 | } |
329 | else | |
20203fb9 | 330 | as_fatal (_("Invalid default architecture, broken assembler.")); |
df9a398f MS |
331 | |
332 | if (current_mode_mask == 0) | |
333 | { | |
1e8766d7 AK |
334 | /* Default to z/Architecture mode if the CPU supports it. */ |
335 | if (current_cpu < S390_OPCODE_Z900) | |
df9a398f MS |
336 | current_mode_mask = 1 << S390_OPCODE_ESA; |
337 | else | |
338 | current_mode_mask = 1 << S390_OPCODE_ZARCH; | |
339 | } | |
a85d7ed0 NC |
340 | } |
341 | ||
342 | /* Called by TARGET_FORMAT. */ | |
343 | const char * | |
5a49b8ac | 344 | s390_target_format (void) |
a85d7ed0 NC |
345 | { |
346 | /* We don't get a chance to initialize anything before we're called, | |
347 | so handle that now. */ | |
2ebb4b88 | 348 | init_default_arch (); |
a85d7ed0 NC |
349 | |
350 | return s390_arch_size == 64 ? "elf64-s390" : "elf32-s390"; | |
351 | } | |
352 | ||
353 | int | |
5a49b8ac | 354 | md_parse_option (int c, char *arg) |
a85d7ed0 | 355 | { |
07855bec NC |
356 | switch (c) |
357 | { | |
358 | /* -k: Ignore for FreeBSD compatibility. */ | |
359 | case 'k': | |
360 | break; | |
361 | case 'm': | |
362 | if (arg != NULL && strcmp (arg, "regnames") == 0) | |
b34976b6 | 363 | reg_names_p = TRUE; |
198ce79b | 364 | |
07855bec | 365 | else if (arg != NULL && strcmp (arg, "no-regnames") == 0) |
b34976b6 | 366 | reg_names_p = FALSE; |
198ce79b | 367 | |
16a419ba NC |
368 | else if (arg != NULL && strcmp (arg, "warn-areg-zero") == 0) |
369 | warn_areg_zero = TRUE; | |
370 | ||
ff0fb565 | 371 | else if (arg != NULL && strcmp (arg, "31") == 0) |
75504fed | 372 | s390_arch_size = 32; |
ff0fb565 MS |
373 | |
374 | else if (arg != NULL && strcmp (arg, "64") == 0) | |
375 | s390_arch_size = 64; | |
376 | ||
37a58793 MS |
377 | else if (arg != NULL && strcmp (arg, "esa") == 0) |
378 | current_mode_mask = 1 << S390_OPCODE_ESA; | |
379 | ||
380 | else if (arg != NULL && strcmp (arg, "zarch") == 0) | |
381 | current_mode_mask = 1 << S390_OPCODE_ZARCH; | |
382 | ||
383 | else if (arg != NULL && strncmp (arg, "arch=", 5) == 0) | |
384 | { | |
385 | if (strcmp (arg + 5, "g5") == 0) | |
386 | current_cpu = S390_OPCODE_G5; | |
387 | else if (strcmp (arg + 5, "g6") == 0) | |
388 | current_cpu = S390_OPCODE_G6; | |
389 | else if (strcmp (arg + 5, "z900") == 0) | |
390 | current_cpu = S390_OPCODE_Z900; | |
933fbc29 MS |
391 | else if (strcmp (arg + 5, "z990") == 0) |
392 | current_cpu = S390_OPCODE_Z990; | |
6c639ef9 MS |
393 | else if (strcmp (arg + 5, "z9-109") == 0) |
394 | current_cpu = S390_OPCODE_Z9_109; | |
b5639b37 MS |
395 | else if (strcmp (arg + 5, "z9-ec") == 0) |
396 | current_cpu = S390_OPCODE_Z9_EC; | |
5746fb46 AK |
397 | else if (strcmp (arg + 5, "z10") == 0) |
398 | current_cpu = S390_OPCODE_Z10; | |
d9aee5d7 AK |
399 | else if (strcmp (arg + 5, "z196") == 0) |
400 | current_cpu = S390_OPCODE_Z196; | |
db3a4e40 AK |
401 | else if (strcmp (arg + 5, "all") == 0) |
402 | current_cpu = S390_OPCODE_MAXCPU - 1; | |
37a58793 MS |
403 | else |
404 | { | |
405 | as_bad (_("invalid switch -m%s"), arg); | |
406 | return 0; | |
407 | } | |
408 | } | |
409 | ||
07855bec NC |
410 | else |
411 | { | |
412 | as_bad (_("invalid switch -m%s"), arg); | |
413 | return 0; | |
414 | } | |
415 | break; | |
198ce79b | 416 | |
07855bec | 417 | case 'A': |
67c1ffbe | 418 | /* Option -A is deprecated. Still available for compatibility. */ |
07855bec | 419 | if (arg != NULL && strcmp (arg, "esa") == 0) |
37a58793 | 420 | current_cpu = S390_OPCODE_G5; |
07855bec | 421 | else if (arg != NULL && strcmp (arg, "esame") == 0) |
37a58793 | 422 | current_cpu = S390_OPCODE_Z900; |
07855bec | 423 | else |
20203fb9 | 424 | as_bad (_("invalid architecture -A%s"), arg); |
07855bec NC |
425 | break; |
426 | ||
427 | /* -V: SVR4 argument to print version ID. */ | |
428 | case 'V': | |
429 | print_version_id (); | |
430 | break; | |
198ce79b | 431 | |
07855bec NC |
432 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section |
433 | should be emitted or not. FIXME: Not implemented. */ | |
434 | case 'Q': | |
435 | break; | |
198ce79b | 436 | |
07855bec NC |
437 | default: |
438 | return 0; | |
439 | } | |
198ce79b | 440 | |
a85d7ed0 NC |
441 | return 1; |
442 | } | |
443 | ||
444 | void | |
5a49b8ac | 445 | md_show_usage (FILE *stream) |
a85d7ed0 | 446 | { |
07855bec | 447 | fprintf (stream, _("\ |
16a419ba NC |
448 | S390 options:\n\ |
449 | -mregnames Allow symbolic names for registers\n\ | |
450 | -mwarn-areg-zero Warn about zero base/index registers\n\ | |
ff0fb565 MS |
451 | -mno-regnames Do not allow symbolic names for registers\n\ |
452 | -m31 Set file format to 31 bit format\n\ | |
453 | -m64 Set file format to 64 bit format\n")); | |
07855bec | 454 | fprintf (stream, _("\ |
16a419ba NC |
455 | -V print assembler version number\n\ |
456 | -Qy, -Qn ignored\n")); | |
a85d7ed0 NC |
457 | } |
458 | ||
459 | /* This function is called when the assembler starts up. It is called | |
460 | after the options have been parsed and the output file has been | |
16a419ba | 461 | opened. */ |
a85d7ed0 NC |
462 | |
463 | void | |
5a49b8ac | 464 | md_begin (void) |
a85d7ed0 NC |
465 | { |
466 | register const struct s390_opcode *op; | |
467 | const struct s390_opcode *op_end; | |
b34976b6 | 468 | bfd_boolean dup_insn = FALSE; |
a85d7ed0 NC |
469 | const char *retval; |
470 | ||
ff0fb565 | 471 | /* Give a warning if the combination -m64-bit and -Aesa is used. */ |
37a58793 | 472 | if (s390_arch_size == 64 && current_cpu < S390_OPCODE_Z900) |
20203fb9 | 473 | as_warn (_("The 64 bit file format is used without esame instructions.")); |
ff0fb565 | 474 | |
75e21f08 JJ |
475 | s390_cie_data_alignment = -s390_arch_size / 8; |
476 | ||
16a419ba | 477 | /* Set the ELF flags if desired. */ |
a85d7ed0 NC |
478 | if (s390_flags) |
479 | bfd_set_private_flags (stdoutput, s390_flags); | |
480 | ||
481 | /* Insert the opcode formats into a hash table. */ | |
482 | s390_opformat_hash = hash_new (); | |
483 | ||
484 | op_end = s390_opformats + s390_num_opformats; | |
07855bec NC |
485 | for (op = s390_opformats; op < op_end; op++) |
486 | { | |
5a49b8ac | 487 | retval = hash_insert (s390_opformat_hash, op->name, (void *) op); |
07855bec NC |
488 | if (retval != (const char *) NULL) |
489 | { | |
490 | as_bad (_("Internal assembler error for instruction format %s"), | |
491 | op->name); | |
b34976b6 | 492 | dup_insn = TRUE; |
07855bec NC |
493 | } |
494 | } | |
a85d7ed0 NC |
495 | |
496 | /* Insert the opcodes into a hash table. */ | |
497 | s390_opcode_hash = hash_new (); | |
498 | ||
499 | op_end = s390_opcodes + s390_num_opcodes; | |
07855bec | 500 | for (op = s390_opcodes; op < op_end; op++) |
e6181b6a MS |
501 | { |
502 | while (op < op_end - 1 && strcmp(op->name, op[1].name) == 0) | |
503 | { | |
504 | if (op->min_cpu <= current_cpu && (op->modes & current_mode_mask)) | |
505 | break; | |
933fbc29 | 506 | op++; |
e6181b6a | 507 | } |
be7a250d AK |
508 | |
509 | if (op->min_cpu <= current_cpu && (op->modes & current_mode_mask)) | |
510 | { | |
511 | retval = hash_insert (s390_opcode_hash, op->name, (void *) op); | |
512 | if (retval != (const char *) NULL) | |
513 | { | |
514 | as_bad (_("Internal assembler error for instruction %s"), | |
515 | op->name); | |
516 | dup_insn = TRUE; | |
517 | } | |
e6181b6a | 518 | } |
be7a250d | 519 | |
e6181b6a MS |
520 | while (op < op_end - 1 && strcmp (op->name, op[1].name) == 0) |
521 | op++; | |
933fbc29 | 522 | } |
07855bec | 523 | |
a85d7ed0 NC |
524 | if (dup_insn) |
525 | abort (); | |
526 | ||
527 | record_alignment (text_section, 2); | |
528 | record_alignment (data_section, 2); | |
529 | record_alignment (bss_section, 2); | |
530 | ||
531 | } | |
532 | ||
533 | /* Called after all assembly has been done. */ | |
534 | void | |
5a49b8ac | 535 | s390_md_end (void) |
a85d7ed0 | 536 | { |
07855bec | 537 | if (s390_arch_size == 64) |
ff0fb565 | 538 | bfd_set_arch_mach (stdoutput, bfd_arch_s390, bfd_mach_s390_64); |
07855bec | 539 | else |
ff0fb565 | 540 | bfd_set_arch_mach (stdoutput, bfd_arch_s390, bfd_mach_s390_31); |
a85d7ed0 NC |
541 | } |
542 | ||
a85d7ed0 NC |
543 | /* Insert an operand value into an instruction. */ |
544 | ||
545 | static void | |
5a49b8ac AM |
546 | s390_insert_operand (unsigned char *insn, |
547 | const struct s390_operand *operand, | |
548 | offsetT val, | |
549 | char *file, | |
550 | unsigned int line) | |
a85d7ed0 NC |
551 | { |
552 | addressT uval; | |
553 | int offset; | |
554 | ||
07855bec NC |
555 | if (operand->flags & (S390_OPERAND_SIGNED|S390_OPERAND_PCREL)) |
556 | { | |
557 | offsetT min, max; | |
558 | ||
559 | max = ((offsetT) 1 << (operand->bits - 1)) - 1; | |
560 | min = - ((offsetT) 1 << (operand->bits - 1)); | |
561 | /* Halve PCREL operands. */ | |
562 | if (operand->flags & S390_OPERAND_PCREL) | |
563 | val >>= 1; | |
564 | /* Check for underflow / overflow. */ | |
565 | if (val < min || val > max) | |
566 | { | |
567 | const char *err = | |
20203fb9 | 568 | _("operand out of range (%s not between %ld and %ld)"); |
07855bec NC |
569 | char buf[100]; |
570 | ||
571 | if (operand->flags & S390_OPERAND_PCREL) | |
572 | { | |
573 | val <<= 1; | |
574 | min <<= 1; | |
575 | max <<= 1; | |
576 | } | |
577 | sprint_value (buf, val); | |
578 | if (file == (char *) NULL) | |
579 | as_bad (err, buf, (int) min, (int) max); | |
580 | else | |
581 | as_bad_where (file, line, err, buf, (int) min, (int) max); | |
582 | return; | |
583 | } | |
584 | /* val is ok, now restrict it to operand->bits bits. */ | |
585 | uval = (addressT) val & ((((addressT) 1 << (operand->bits-1)) << 1) - 1); | |
933fbc29 MS |
586 | /* val is restrict, now check for special case. */ |
587 | if (operand->bits == 20 && operand->shift == 20) | |
588 | uval = (uval >> 12) | ((uval & 0xfff) << 8); | |
a85d7ed0 | 589 | } |
07855bec NC |
590 | else |
591 | { | |
592 | addressT min, max; | |
198ce79b | 593 | |
98d3f06f | 594 | max = (((addressT) 1 << (operand->bits - 1)) << 1) - 1; |
07855bec NC |
595 | min = (offsetT) 0; |
596 | uval = (addressT) val; | |
597 | /* Length x in an instructions has real length x+1. */ | |
598 | if (operand->flags & S390_OPERAND_LENGTH) | |
599 | uval--; | |
600 | /* Check for underflow / overflow. */ | |
601 | if (uval < min || uval > max) | |
602 | { | |
07855bec NC |
603 | if (operand->flags & S390_OPERAND_LENGTH) |
604 | { | |
605 | uval++; | |
606 | min++; | |
607 | max++; | |
608 | } | |
e5976317 NC |
609 | |
610 | as_bad_value_out_of_range (_("operand"), uval, (offsetT) min, (offsetT) max, file, line); | |
611 | ||
07855bec NC |
612 | return; |
613 | } | |
a85d7ed0 | 614 | } |
a85d7ed0 NC |
615 | |
616 | /* Insert fragments of the operand byte for byte. */ | |
617 | offset = operand->shift + operand->bits; | |
618 | uval <<= (-offset) & 7; | |
98d3f06f | 619 | insn += (offset - 1) / 8; |
07855bec NC |
620 | while (uval != 0) |
621 | { | |
622 | *insn-- |= uval; | |
623 | uval >>= 8; | |
624 | } | |
a85d7ed0 NC |
625 | } |
626 | ||
1971b29d MS |
627 | struct map_tls |
628 | { | |
629 | char *string; | |
630 | int length; | |
631 | bfd_reloc_code_real_type reloc; | |
632 | }; | |
633 | ||
1971b29d MS |
634 | /* Parse tls marker and return the desired relocation. */ |
635 | static bfd_reloc_code_real_type | |
5a49b8ac | 636 | s390_tls_suffix (char **str_p, expressionS *exp_p) |
1971b29d MS |
637 | { |
638 | static struct map_tls mapping[] = | |
639 | { | |
640 | { "tls_load", 8, BFD_RELOC_390_TLS_LOAD }, | |
641 | { "tls_gdcall", 10, BFD_RELOC_390_TLS_GDCALL }, | |
642 | { "tls_ldcall", 10, BFD_RELOC_390_TLS_LDCALL }, | |
643 | { NULL, 0, BFD_RELOC_UNUSED } | |
644 | }; | |
645 | struct map_tls *ptr; | |
646 | char *orig_line; | |
647 | char *str; | |
648 | char *ident; | |
649 | int len; | |
650 | ||
651 | str = *str_p; | |
652 | if (*str++ != ':') | |
653 | return BFD_RELOC_UNUSED; | |
654 | ||
655 | ident = str; | |
656 | while (ISIDNUM (*str)) | |
657 | str++; | |
658 | len = str - ident; | |
659 | if (*str++ != ':') | |
660 | return BFD_RELOC_UNUSED; | |
661 | ||
662 | orig_line = input_line_pointer; | |
663 | input_line_pointer = str; | |
664 | expression (exp_p); | |
665 | str = input_line_pointer; | |
666 | if (&input_line_pointer != str_p) | |
667 | input_line_pointer = orig_line; | |
668 | ||
669 | if (exp_p->X_op != O_symbol) | |
670 | return BFD_RELOC_UNUSED; | |
671 | ||
672 | for (ptr = &mapping[0]; ptr->length > 0; ptr++) | |
673 | if (len == ptr->length | |
674 | && strncasecmp (ident, ptr->string, ptr->length) == 0) | |
675 | { | |
676 | /* Found a matching tls suffix. */ | |
677 | *str_p = str; | |
678 | return ptr->reloc; | |
679 | } | |
680 | return BFD_RELOC_UNUSED; | |
681 | } | |
682 | ||
a85d7ed0 | 683 | /* Structure used to hold suffixes. */ |
07855bec NC |
684 | typedef enum |
685 | { | |
686 | ELF_SUFFIX_NONE = 0, | |
687 | ELF_SUFFIX_GOT, | |
688 | ELF_SUFFIX_PLT, | |
2a19f73f MS |
689 | ELF_SUFFIX_GOTENT, |
690 | ELF_SUFFIX_GOTOFF, | |
691 | ELF_SUFFIX_GOTPLT, | |
1971b29d MS |
692 | ELF_SUFFIX_PLTOFF, |
693 | ELF_SUFFIX_TLS_GD, | |
694 | ELF_SUFFIX_TLS_GOTIE, | |
695 | ELF_SUFFIX_TLS_IE, | |
696 | ELF_SUFFIX_TLS_LDM, | |
697 | ELF_SUFFIX_TLS_LDO, | |
698 | ELF_SUFFIX_TLS_LE | |
07855bec NC |
699 | } |
700 | elf_suffix_type; | |
701 | ||
702 | struct map_bfd | |
703 | { | |
704 | char *string; | |
705 | int length; | |
706 | elf_suffix_type suffix; | |
707 | }; | |
a85d7ed0 | 708 | |
9d654c1c | 709 | |
a85d7ed0 NC |
710 | /* Parse @got/@plt/@gotoff. and return the desired relocation. */ |
711 | static elf_suffix_type | |
5a49b8ac | 712 | s390_elf_suffix (char **str_p, expressionS *exp_p) |
a85d7ed0 | 713 | { |
07855bec NC |
714 | static struct map_bfd mapping[] = |
715 | { | |
a85d7ed0 NC |
716 | { "got", 3, ELF_SUFFIX_GOT }, |
717 | { "got12", 5, ELF_SUFFIX_GOT }, | |
718 | { "plt", 3, ELF_SUFFIX_PLT }, | |
719 | { "gotent", 6, ELF_SUFFIX_GOTENT }, | |
2a19f73f MS |
720 | { "gotoff", 6, ELF_SUFFIX_GOTOFF }, |
721 | { "gotplt", 6, ELF_SUFFIX_GOTPLT }, | |
722 | { "pltoff", 6, ELF_SUFFIX_PLTOFF }, | |
1971b29d MS |
723 | { "tlsgd", 5, ELF_SUFFIX_TLS_GD }, |
724 | { "gotntpoff", 9, ELF_SUFFIX_TLS_GOTIE }, | |
725 | { "indntpoff", 9, ELF_SUFFIX_TLS_IE }, | |
726 | { "tlsldm", 6, ELF_SUFFIX_TLS_LDM }, | |
727 | { "dtpoff", 6, ELF_SUFFIX_TLS_LDO }, | |
728 | { "ntpoff", 6, ELF_SUFFIX_TLS_LE }, | |
a85d7ed0 NC |
729 | { NULL, 0, ELF_SUFFIX_NONE } |
730 | }; | |
731 | ||
732 | struct map_bfd *ptr; | |
733 | char *str = *str_p; | |
734 | char *ident; | |
735 | int len; | |
736 | ||
737 | if (*str++ != '@') | |
738 | return ELF_SUFFIX_NONE; | |
739 | ||
740 | ident = str; | |
3882b010 | 741 | while (ISALNUM (*str)) |
a85d7ed0 NC |
742 | str++; |
743 | len = str - ident; | |
744 | ||
745 | for (ptr = &mapping[0]; ptr->length > 0; ptr++) | |
16a419ba NC |
746 | if (len == ptr->length |
747 | && strncasecmp (ident, ptr->string, ptr->length) == 0) | |
07855bec NC |
748 | { |
749 | if (exp_p->X_add_number != 0) | |
750 | as_warn (_("identifier+constant@%s means identifier@%s+constant"), | |
751 | ptr->string, ptr->string); | |
752 | /* Now check for identifier@suffix+constant. */ | |
753 | if (*str == '-' || *str == '+') | |
754 | { | |
755 | char *orig_line = input_line_pointer; | |
756 | expressionS new_exp; | |
757 | ||
758 | input_line_pointer = str; | |
759 | expression (&new_exp); | |
760 | ||
761 | switch (new_exp.X_op) | |
762 | { | |
763 | case O_constant: /* X_add_number (a constant expression). */ | |
764 | exp_p->X_add_number += new_exp.X_add_number; | |
765 | str = input_line_pointer; | |
766 | break; | |
767 | case O_symbol: /* X_add_symbol + X_add_number. */ | |
768 | /* this case is used for e.g. xyz@PLT+.Label. */ | |
769 | exp_p->X_add_number += new_exp.X_add_number; | |
770 | exp_p->X_op_symbol = new_exp.X_add_symbol; | |
771 | exp_p->X_op = O_add; | |
772 | str = input_line_pointer; | |
773 | break; | |
774 | case O_uminus: /* (- X_add_symbol) + X_add_number. */ | |
775 | /* this case is used for e.g. xyz@PLT-.Label. */ | |
776 | exp_p->X_add_number += new_exp.X_add_number; | |
777 | exp_p->X_op_symbol = new_exp.X_add_symbol; | |
778 | exp_p->X_op = O_subtract; | |
779 | str = input_line_pointer; | |
780 | break; | |
781 | default: | |
782 | break; | |
783 | } | |
784 | ||
785 | /* If s390_elf_suffix has not been called with | |
786 | &input_line_pointer as first parameter, we have | |
787 | clobbered the input_line_pointer. We have to | |
788 | undo that. */ | |
789 | if (&input_line_pointer != str_p) | |
790 | input_line_pointer = orig_line; | |
a85d7ed0 | 791 | } |
07855bec NC |
792 | *str_p = str; |
793 | return ptr->suffix; | |
a85d7ed0 | 794 | } |
a85d7ed0 NC |
795 | |
796 | return BFD_RELOC_UNUSED; | |
797 | } | |
798 | ||
799 | /* Structure used to hold a literal pool entry. */ | |
07855bec NC |
800 | struct s390_lpe |
801 | { | |
802 | struct s390_lpe *next; | |
803 | expressionS ex; | |
804 | FLONUM_TYPE floatnum; /* used if X_op == O_big && X_add_number <= 0 */ | |
805 | LITTLENUM_TYPE bignum[4]; /* used if X_op == O_big && X_add_number > 0 */ | |
806 | int nbytes; | |
807 | bfd_reloc_code_real_type reloc; | |
808 | symbolS *sym; | |
809 | }; | |
a85d7ed0 NC |
810 | |
811 | static struct s390_lpe *lpe_free_list = NULL; | |
812 | static struct s390_lpe *lpe_list = NULL; | |
813 | static struct s390_lpe *lpe_list_tail = NULL; | |
814 | static symbolS *lp_sym = NULL; | |
815 | static int lp_count = 0; | |
816 | static int lpe_count = 0; | |
817 | ||
818 | static int | |
5a49b8ac | 819 | s390_exp_compare (expressionS *exp1, expressionS *exp2) |
a85d7ed0 NC |
820 | { |
821 | if (exp1->X_op != exp2->X_op) | |
822 | return 0; | |
823 | ||
07855bec NC |
824 | switch (exp1->X_op) |
825 | { | |
826 | case O_constant: /* X_add_number must be equal. */ | |
827 | case O_register: | |
828 | return exp1->X_add_number == exp2->X_add_number; | |
829 | ||
830 | case O_big: | |
198ce79b | 831 | as_bad (_("Can't handle O_big in s390_exp_compare")); |
07855bec NC |
832 | |
833 | case O_symbol: /* X_add_symbol & X_add_number must be equal. */ | |
834 | case O_symbol_rva: | |
835 | case O_uminus: | |
836 | case O_bit_not: | |
837 | case O_logical_not: | |
16a419ba NC |
838 | return (exp1->X_add_symbol == exp2->X_add_symbol) |
839 | && (exp1->X_add_number == exp2->X_add_number); | |
07855bec NC |
840 | |
841 | case O_multiply: /* X_add_symbol,X_op_symbol&X_add_number must be equal. */ | |
842 | case O_divide: | |
843 | case O_modulus: | |
844 | case O_left_shift: | |
845 | case O_right_shift: | |
846 | case O_bit_inclusive_or: | |
847 | case O_bit_or_not: | |
848 | case O_bit_exclusive_or: | |
849 | case O_bit_and: | |
850 | case O_add: | |
851 | case O_subtract: | |
852 | case O_eq: | |
853 | case O_ne: | |
854 | case O_lt: | |
855 | case O_le: | |
856 | case O_ge: | |
857 | case O_gt: | |
858 | case O_logical_and: | |
859 | case O_logical_or: | |
16a419ba NC |
860 | return (exp1->X_add_symbol == exp2->X_add_symbol) |
861 | && (exp1->X_op_symbol == exp2->X_op_symbol) | |
862 | && (exp1->X_add_number == exp2->X_add_number); | |
07855bec | 863 | default: |
98d3f06f KH |
864 | return 0; |
865 | } | |
a85d7ed0 NC |
866 | } |
867 | ||
868 | /* Test for @lit and if its present make an entry in the literal pool and | |
869 | modify the current expression to be an offset into the literal pool. */ | |
870 | static elf_suffix_type | |
5a49b8ac | 871 | s390_lit_suffix (char **str_p, expressionS *exp_p, elf_suffix_type suffix) |
a85d7ed0 NC |
872 | { |
873 | bfd_reloc_code_real_type reloc; | |
874 | char tmp_name[64]; | |
875 | char *str = *str_p; | |
876 | char *ident; | |
877 | struct s390_lpe *lpe; | |
878 | int nbytes, len; | |
879 | ||
880 | if (*str++ != ':') | |
881 | return suffix; /* No modification. */ | |
198ce79b | 882 | |
a85d7ed0 NC |
883 | /* We look for a suffix of the form "@lit1", "@lit2", "@lit4" or "@lit8". */ |
884 | ident = str; | |
3882b010 | 885 | while (ISALNUM (*str)) |
a85d7ed0 NC |
886 | str++; |
887 | len = str - ident; | |
16a419ba NC |
888 | if (len != 4 || strncasecmp (ident, "lit", 3) != 0 |
889 | || (ident[3]!='1' && ident[3]!='2' && ident[3]!='4' && ident[3]!='8')) | |
a85d7ed0 NC |
890 | return suffix; /* no modification */ |
891 | nbytes = ident[3] - '0'; | |
892 | ||
893 | reloc = BFD_RELOC_UNUSED; | |
07855bec NC |
894 | if (suffix == ELF_SUFFIX_GOT) |
895 | { | |
896 | if (nbytes == 2) | |
897 | reloc = BFD_RELOC_390_GOT16; | |
898 | else if (nbytes == 4) | |
899 | reloc = BFD_RELOC_32_GOT_PCREL; | |
900 | else if (nbytes == 8) | |
901 | reloc = BFD_RELOC_390_GOT64; | |
902 | } | |
903 | else if (suffix == ELF_SUFFIX_PLT) | |
904 | { | |
905 | if (nbytes == 4) | |
906 | reloc = BFD_RELOC_390_PLT32; | |
907 | else if (nbytes == 8) | |
908 | reloc = BFD_RELOC_390_PLT64; | |
909 | } | |
a85d7ed0 | 910 | |
07855bec | 911 | if (suffix != ELF_SUFFIX_NONE && reloc == BFD_RELOC_UNUSED) |
a85d7ed0 | 912 | as_bad (_("Invalid suffix for literal pool entry")); |
a85d7ed0 NC |
913 | |
914 | /* Search the pool if the new entry is a duplicate. */ | |
07855bec NC |
915 | if (exp_p->X_op == O_big) |
916 | { | |
917 | /* Special processing for big numbers. */ | |
918 | for (lpe = lpe_list; lpe != NULL; lpe = lpe->next) | |
919 | { | |
920 | if (lpe->ex.X_op == O_big) | |
921 | { | |
922 | if (exp_p->X_add_number <= 0 && lpe->ex.X_add_number <= 0) | |
923 | { | |
924 | if (memcmp (&generic_floating_point_number, &lpe->floatnum, | |
925 | sizeof (FLONUM_TYPE)) == 0) | |
926 | break; | |
927 | } | |
928 | else if (exp_p->X_add_number == lpe->ex.X_add_number) | |
929 | { | |
930 | if (memcmp (generic_bignum, lpe->bignum, | |
931 | sizeof (LITTLENUM_TYPE)*exp_p->X_add_number) == 0) | |
932 | break; | |
933 | } | |
934 | } | |
935 | } | |
a85d7ed0 | 936 | } |
07855bec NC |
937 | else |
938 | { | |
939 | /* Processing for 'normal' data types. */ | |
940 | for (lpe = lpe_list; lpe != NULL; lpe = lpe->next) | |
16a419ba | 941 | if (lpe->nbytes == nbytes && lpe->reloc == reloc |
98d3f06f | 942 | && s390_exp_compare (exp_p, &lpe->ex) != 0) |
07855bec | 943 | break; |
a85d7ed0 | 944 | } |
07855bec NC |
945 | |
946 | if (lpe == NULL) | |
947 | { | |
948 | /* A new literal. */ | |
949 | if (lpe_free_list != NULL) | |
950 | { | |
951 | lpe = lpe_free_list; | |
952 | lpe_free_list = lpe_free_list->next; | |
953 | } | |
a85d7ed0 | 954 | else |
07855bec | 955 | { |
98d3f06f | 956 | lpe = (struct s390_lpe *) xmalloc (sizeof (struct s390_lpe)); |
07855bec NC |
957 | } |
958 | ||
959 | lpe->ex = *exp_p; | |
960 | ||
961 | if (exp_p->X_op == O_big) | |
962 | { | |
963 | if (exp_p->X_add_number <= 0) | |
964 | lpe->floatnum = generic_floating_point_number; | |
965 | else if (exp_p->X_add_number <= 4) | |
966 | memcpy (lpe->bignum, generic_bignum, | |
98d3f06f | 967 | exp_p->X_add_number * sizeof (LITTLENUM_TYPE)); |
07855bec NC |
968 | else |
969 | as_bad (_("Big number is too big")); | |
970 | } | |
971 | ||
972 | lpe->nbytes = nbytes; | |
973 | lpe->reloc = reloc; | |
974 | /* Literal pool name defined ? */ | |
975 | if (lp_sym == NULL) | |
976 | { | |
07726851 | 977 | sprintf (tmp_name, ".L\001%i", lp_count); |
98d3f06f | 978 | lp_sym = symbol_make (tmp_name); |
07855bec | 979 | } |
a85d7ed0 | 980 | |
07855bec | 981 | /* Make name for literal pool entry. */ |
07726851 | 982 | sprintf (tmp_name, ".L\001%i\002%i", lp_count, lpe_count); |
07855bec | 983 | lpe_count++; |
98d3f06f | 984 | lpe->sym = symbol_make (tmp_name); |
07855bec NC |
985 | |
986 | /* Add to literal pool list. */ | |
987 | lpe->next = NULL; | |
988 | if (lpe_list_tail != NULL) | |
989 | { | |
990 | lpe_list_tail->next = lpe; | |
991 | lpe_list_tail = lpe; | |
992 | } | |
993 | else | |
994 | lpe_list = lpe_list_tail = lpe; | |
995 | } | |
198ce79b | 996 | |
a85d7ed0 NC |
997 | /* Now change exp_p to the offset into the literal pool. |
998 | Thats the expression: .L^Ax^By-.L^Ax */ | |
999 | exp_p->X_add_symbol = lpe->sym; | |
1000 | exp_p->X_op_symbol = lp_sym; | |
1001 | exp_p->X_op = O_subtract; | |
1002 | exp_p->X_add_number = 0; | |
1003 | ||
1004 | *str_p = str; | |
1005 | ||
1006 | /* We change the suffix type to ELF_SUFFIX_NONE, because | |
1007 | the difference of two local labels is just a number. */ | |
1008 | return ELF_SUFFIX_NONE; | |
1009 | } | |
1010 | ||
1011 | /* Like normal .long/.short/.word, except support @got, etc. | |
1012 | clobbers input_line_pointer, checks end-of-line. */ | |
1013 | static void | |
5a49b8ac | 1014 | s390_elf_cons (int nbytes /* 1=.byte, 2=.word, 4=.long */) |
a85d7ed0 NC |
1015 | { |
1016 | expressionS exp; | |
1017 | elf_suffix_type suffix; | |
1018 | ||
07855bec NC |
1019 | if (is_it_end_of_statement ()) |
1020 | { | |
1021 | demand_empty_rest_of_line (); | |
1022 | return; | |
1023 | } | |
a85d7ed0 | 1024 | |
07855bec NC |
1025 | do |
1026 | { | |
1027 | expression (&exp); | |
1028 | ||
1029 | if (exp.X_op == O_symbol | |
1030 | && *input_line_pointer == '@' | |
1031 | && (suffix = s390_elf_suffix (&input_line_pointer, &exp)) != ELF_SUFFIX_NONE) | |
1032 | { | |
1033 | bfd_reloc_code_real_type reloc; | |
1034 | reloc_howto_type *reloc_howto; | |
1035 | int size; | |
1036 | char *where; | |
1037 | ||
1971b29d MS |
1038 | if (nbytes == 2) |
1039 | { | |
1040 | static bfd_reloc_code_real_type tab2[] = | |
1041 | { | |
5cfbfc2b MS |
1042 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_NONE */ |
1043 | BFD_RELOC_390_GOT16, /* ELF_SUFFIX_GOT */ | |
1044 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_PLT */ | |
1045 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTENT */ | |
1046 | BFD_RELOC_16_GOTOFF, /* ELF_SUFFIX_GOTOFF */ | |
1047 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTPLT */ | |
1048 | BFD_RELOC_390_PLTOFF16, /* ELF_SUFFIX_PLTOFF */ | |
1049 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_GD */ | |
1050 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_GOTIE */ | |
1051 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_IE */ | |
1052 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_LDM */ | |
1053 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_LDO */ | |
1054 | BFD_RELOC_UNUSED /* ELF_SUFFIX_TLS_LE */ | |
1971b29d MS |
1055 | }; |
1056 | reloc = tab2[suffix]; | |
1057 | } | |
1058 | else if (nbytes == 4) | |
1059 | { | |
1060 | static bfd_reloc_code_real_type tab4[] = | |
1061 | { | |
5cfbfc2b MS |
1062 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_NONE */ |
1063 | BFD_RELOC_32_GOT_PCREL, /* ELF_SUFFIX_GOT */ | |
1064 | BFD_RELOC_390_PLT32, /* ELF_SUFFIX_PLT */ | |
1065 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTENT */ | |
1066 | BFD_RELOC_32_GOTOFF, /* ELF_SUFFIX_GOTOFF */ | |
1067 | BFD_RELOC_390_GOTPLT32, /* ELF_SUFFIX_GOTPLT */ | |
1068 | BFD_RELOC_390_PLTOFF32, /* ELF_SUFFIX_PLTOFF */ | |
1069 | BFD_RELOC_390_TLS_GD32, /* ELF_SUFFIX_TLS_GD */ | |
1070 | BFD_RELOC_390_TLS_GOTIE32, /* ELF_SUFFIX_TLS_GOTIE */ | |
1071 | BFD_RELOC_390_TLS_IE32, /* ELF_SUFFIX_TLS_IE */ | |
1072 | BFD_RELOC_390_TLS_LDM32, /* ELF_SUFFIX_TLS_LDM */ | |
1073 | BFD_RELOC_390_TLS_LDO32, /* ELF_SUFFIX_TLS_LDO */ | |
1074 | BFD_RELOC_390_TLS_LE32 /* ELF_SUFFIX_TLS_LE */ | |
1971b29d MS |
1075 | }; |
1076 | reloc = tab4[suffix]; | |
1077 | } | |
1078 | else if (nbytes == 8) | |
1079 | { | |
1080 | static bfd_reloc_code_real_type tab8[] = | |
1081 | { | |
5cfbfc2b MS |
1082 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_NONE */ |
1083 | BFD_RELOC_390_GOT64, /* ELF_SUFFIX_GOT */ | |
1084 | BFD_RELOC_390_PLT64, /* ELF_SUFFIX_PLT */ | |
1085 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTENT */ | |
1086 | BFD_RELOC_390_GOTOFF64, /* ELF_SUFFIX_GOTOFF */ | |
1087 | BFD_RELOC_390_GOTPLT64, /* ELF_SUFFIX_GOTPLT */ | |
1088 | BFD_RELOC_390_PLTOFF64, /* ELF_SUFFIX_PLTOFF */ | |
1089 | BFD_RELOC_390_TLS_GD64, /* ELF_SUFFIX_TLS_GD */ | |
1090 | BFD_RELOC_390_TLS_GOTIE64, /* ELF_SUFFIX_TLS_GOTIE */ | |
1091 | BFD_RELOC_390_TLS_IE64, /* ELF_SUFFIX_TLS_IE */ | |
1092 | BFD_RELOC_390_TLS_LDM64, /* ELF_SUFFIX_TLS_LDM */ | |
1093 | BFD_RELOC_390_TLS_LDO64, /* ELF_SUFFIX_TLS_LDO */ | |
1094 | BFD_RELOC_390_TLS_LE64 /* ELF_SUFFIX_TLS_LE */ | |
1971b29d MS |
1095 | }; |
1096 | reloc = tab8[suffix]; | |
1097 | } | |
07855bec NC |
1098 | else |
1099 | reloc = BFD_RELOC_UNUSED; | |
1100 | ||
1971b29d MS |
1101 | if (reloc != BFD_RELOC_UNUSED |
1102 | && (reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc))) | |
07855bec | 1103 | { |
07855bec NC |
1104 | size = bfd_get_reloc_size (reloc_howto); |
1105 | if (size > nbytes) | |
1106 | as_bad (_("%s relocations do not fit in %d bytes"), | |
1107 | reloc_howto->name, nbytes); | |
07726851 | 1108 | where = frag_more (nbytes); |
07855bec | 1109 | md_number_to_chars (where, 0, size); |
198ce79b | 1110 | /* To make fixup_segment do the pc relative conversion the |
b34976b6 | 1111 | pcrel parameter on the fix_new_exp call needs to be FALSE. */ |
198ce79b | 1112 | fix_new_exp (frag_now, where - frag_now->fr_literal, |
b34976b6 | 1113 | size, &exp, FALSE, reloc); |
07855bec NC |
1114 | } |
1115 | else | |
1116 | as_bad (_("relocation not applicable")); | |
1117 | } | |
a85d7ed0 | 1118 | else |
07855bec NC |
1119 | emit_expr (&exp, (unsigned int) nbytes); |
1120 | } | |
1121 | while (*input_line_pointer++ == ','); | |
a85d7ed0 | 1122 | |
98d3f06f | 1123 | input_line_pointer--; /* Put terminator back into stream. */ |
a85d7ed0 NC |
1124 | demand_empty_rest_of_line (); |
1125 | } | |
1126 | ||
1127 | /* We need to keep a list of fixups. We can't simply generate them as | |
1128 | we go, because that would require us to first create the frag, and | |
1129 | that would screw up references to ``.''. */ | |
1130 | ||
1131 | struct s390_fixup | |
07855bec NC |
1132 | { |
1133 | expressionS exp; | |
1134 | int opindex; | |
1135 | bfd_reloc_code_real_type reloc; | |
1136 | }; | |
a85d7ed0 NC |
1137 | |
1138 | #define MAX_INSN_FIXUPS (4) | |
1139 | ||
1140 | /* This routine is called for each instruction to be assembled. */ | |
1141 | ||
9d654c1c | 1142 | static char * |
5a49b8ac AM |
1143 | md_gather_operands (char *str, |
1144 | unsigned char *insn, | |
1145 | const struct s390_opcode *opcode) | |
a85d7ed0 NC |
1146 | { |
1147 | struct s390_fixup fixups[MAX_INSN_FIXUPS]; | |
1148 | const struct s390_operand *operand; | |
1149 | const unsigned char *opindex_ptr; | |
1971b29d | 1150 | expressionS ex; |
a85d7ed0 NC |
1151 | elf_suffix_type suffix; |
1152 | bfd_reloc_code_real_type reloc; | |
1153 | int skip_optional; | |
a85d7ed0 NC |
1154 | char *f; |
1155 | int fc, i; | |
1156 | ||
98d3f06f KH |
1157 | while (ISSPACE (*str)) |
1158 | str++; | |
a85d7ed0 | 1159 | |
a85d7ed0 NC |
1160 | skip_optional = 0; |
1161 | ||
1162 | /* Gather the operands. */ | |
1163 | fc = 0; | |
07855bec NC |
1164 | for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++) |
1165 | { | |
07855bec NC |
1166 | char *hold; |
1167 | ||
1168 | operand = s390_operands + *opindex_ptr; | |
198ce79b | 1169 | |
07855bec NC |
1170 | if (skip_optional && (operand->flags & S390_OPERAND_INDEX)) |
1171 | { | |
1172 | /* We do an early skip. For D(X,B) constructions the index | |
198ce79b | 1173 | register is skipped (X is optional). For D(L,B) the base |
07855bec NC |
1174 | register will be the skipped operand, because L is NOT |
1175 | optional. */ | |
1176 | skip_optional = 0; | |
1177 | continue; | |
1178 | } | |
198ce79b | 1179 | |
07855bec NC |
1180 | /* Gather the operand. */ |
1181 | hold = input_line_pointer; | |
1182 | input_line_pointer = str; | |
1183 | ||
98d3f06f KH |
1184 | /* Parse the operand. */ |
1185 | if (! register_name (&ex)) | |
07855bec | 1186 | expression (&ex); |
198ce79b | 1187 | |
07855bec NC |
1188 | str = input_line_pointer; |
1189 | input_line_pointer = hold; | |
198ce79b | 1190 | |
07855bec NC |
1191 | /* Write the operand to the insn. */ |
1192 | if (ex.X_op == O_illegal) | |
1193 | as_bad (_("illegal operand")); | |
1194 | else if (ex.X_op == O_absent) | |
5e7c27a6 MS |
1195 | { |
1196 | /* No operands, check if all operands can be skipped. */ | |
1197 | while (*opindex_ptr != 0 && operand->flags & S390_OPERAND_OPTIONAL) | |
1198 | { | |
1199 | if (operand->flags & S390_OPERAND_DISP) | |
1200 | { | |
1201 | /* An optional displacement makes the whole D(X,B) | |
1202 | D(L,B) or D(B) block optional. */ | |
1203 | do { | |
1204 | operand = s390_operands + *(++opindex_ptr); | |
1205 | } while (!(operand->flags & S390_OPERAND_BASE)); | |
1206 | } | |
1207 | operand = s390_operands + *(++opindex_ptr); | |
1208 | } | |
1209 | if (opindex_ptr[0] == '\0') | |
1210 | break; | |
1211 | as_bad (_("missing operand")); | |
1212 | } | |
07855bec NC |
1213 | else if (ex.X_op == O_register || ex.X_op == O_constant) |
1214 | { | |
1215 | s390_lit_suffix (&str, &ex, ELF_SUFFIX_NONE); | |
1216 | ||
1217 | if (ex.X_op != O_register && ex.X_op != O_constant) | |
1218 | { | |
1219 | /* We need to generate a fixup for the | |
1220 | expression returned by s390_lit_suffix. */ | |
1221 | if (fc >= MAX_INSN_FIXUPS) | |
1222 | as_fatal (_("too many fixups")); | |
1223 | fixups[fc].exp = ex; | |
1224 | fixups[fc].opindex = *opindex_ptr; | |
1225 | fixups[fc].reloc = BFD_RELOC_UNUSED; | |
1226 | ++fc; | |
1227 | } | |
1228 | else | |
1229 | { | |
16a419ba NC |
1230 | if ((operand->flags & S390_OPERAND_INDEX) |
1231 | && ex.X_add_number == 0 | |
b34976b6 | 1232 | && warn_areg_zero) |
20203fb9 | 1233 | as_warn (_("index register specified but zero")); |
16a419ba NC |
1234 | if ((operand->flags & S390_OPERAND_BASE) |
1235 | && ex.X_add_number == 0 | |
b34976b6 | 1236 | && warn_areg_zero) |
20203fb9 | 1237 | as_warn (_("base register specified but zero")); |
07855bec NC |
1238 | s390_insert_operand (insn, operand, ex.X_add_number, NULL, 0); |
1239 | } | |
1240 | } | |
1241 | else | |
1242 | { | |
1243 | suffix = s390_elf_suffix (&str, &ex); | |
1244 | suffix = s390_lit_suffix (&str, &ex, suffix); | |
1245 | reloc = BFD_RELOC_UNUSED; | |
1246 | ||
1247 | if (suffix == ELF_SUFFIX_GOT) | |
1248 | { | |
933fbc29 MS |
1249 | if ((operand->flags & S390_OPERAND_DISP) && |
1250 | (operand->bits == 12)) | |
07855bec | 1251 | reloc = BFD_RELOC_390_GOT12; |
933fbc29 MS |
1252 | else if ((operand->flags & S390_OPERAND_DISP) && |
1253 | (operand->bits == 20)) | |
1254 | reloc = BFD_RELOC_390_GOT20; | |
16a419ba NC |
1255 | else if ((operand->flags & S390_OPERAND_SIGNED) |
1256 | && (operand->bits == 16)) | |
07855bec | 1257 | reloc = BFD_RELOC_390_GOT16; |
16a419ba NC |
1258 | else if ((operand->flags & S390_OPERAND_PCREL) |
1259 | && (operand->bits == 32)) | |
07855bec NC |
1260 | reloc = BFD_RELOC_390_GOTENT; |
1261 | } | |
1262 | else if (suffix == ELF_SUFFIX_PLT) | |
1263 | { | |
16a419ba NC |
1264 | if ((operand->flags & S390_OPERAND_PCREL) |
1265 | && (operand->bits == 16)) | |
07855bec | 1266 | reloc = BFD_RELOC_390_PLT16DBL; |
16a419ba NC |
1267 | else if ((operand->flags & S390_OPERAND_PCREL) |
1268 | && (operand->bits == 32)) | |
07855bec NC |
1269 | reloc = BFD_RELOC_390_PLT32DBL; |
1270 | } | |
1271 | else if (suffix == ELF_SUFFIX_GOTENT) | |
1272 | { | |
16a419ba NC |
1273 | if ((operand->flags & S390_OPERAND_PCREL) |
1274 | && (operand->bits == 32)) | |
07855bec NC |
1275 | reloc = BFD_RELOC_390_GOTENT; |
1276 | } | |
2a19f73f MS |
1277 | else if (suffix == ELF_SUFFIX_GOTOFF) |
1278 | { | |
1279 | if ((operand->flags & S390_OPERAND_SIGNED) | |
1280 | && (operand->bits == 16)) | |
1281 | reloc = BFD_RELOC_16_GOTOFF; | |
1282 | } | |
1283 | else if (suffix == ELF_SUFFIX_PLTOFF) | |
1284 | { | |
1285 | if ((operand->flags & S390_OPERAND_SIGNED) | |
1286 | && (operand->bits == 16)) | |
1287 | reloc = BFD_RELOC_390_PLTOFF16; | |
1288 | } | |
1289 | else if (suffix == ELF_SUFFIX_GOTPLT) | |
1290 | { | |
1291 | if ((operand->flags & S390_OPERAND_DISP) | |
1292 | && (operand->bits == 12)) | |
1293 | reloc = BFD_RELOC_390_GOTPLT12; | |
1294 | else if ((operand->flags & S390_OPERAND_SIGNED) | |
1295 | && (operand->bits == 16)) | |
1296 | reloc = BFD_RELOC_390_GOTPLT16; | |
1297 | else if ((operand->flags & S390_OPERAND_PCREL) | |
1298 | && (operand->bits == 32)) | |
1299 | reloc = BFD_RELOC_390_GOTPLTENT; | |
1300 | } | |
1971b29d MS |
1301 | else if (suffix == ELF_SUFFIX_TLS_GOTIE) |
1302 | { | |
1303 | if ((operand->flags & S390_OPERAND_DISP) | |
1304 | && (operand->bits == 12)) | |
1305 | reloc = BFD_RELOC_390_TLS_GOTIE12; | |
933fbc29 MS |
1306 | else if ((operand->flags & S390_OPERAND_DISP) |
1307 | && (operand->bits == 20)) | |
1308 | reloc = BFD_RELOC_390_TLS_GOTIE20; | |
1971b29d MS |
1309 | } |
1310 | else if (suffix == ELF_SUFFIX_TLS_IE) | |
1311 | { | |
1312 | if ((operand->flags & S390_OPERAND_PCREL) | |
1313 | && (operand->bits == 32)) | |
1314 | reloc = BFD_RELOC_390_TLS_IEENT; | |
1315 | } | |
07855bec NC |
1316 | |
1317 | if (suffix != ELF_SUFFIX_NONE && reloc == BFD_RELOC_UNUSED) | |
1318 | as_bad (_("invalid operand suffix")); | |
1319 | /* We need to generate a fixup of type 'reloc' for this | |
1320 | expression. */ | |
a85d7ed0 NC |
1321 | if (fc >= MAX_INSN_FIXUPS) |
1322 | as_fatal (_("too many fixups")); | |
1323 | fixups[fc].exp = ex; | |
1324 | fixups[fc].opindex = *opindex_ptr; | |
07855bec | 1325 | fixups[fc].reloc = reloc; |
a85d7ed0 | 1326 | ++fc; |
07855bec | 1327 | } |
198ce79b | 1328 | |
07855bec NC |
1329 | /* Check the next character. The call to expression has advanced |
1330 | str past any whitespace. */ | |
1331 | if (operand->flags & S390_OPERAND_DISP) | |
1332 | { | |
1333 | /* After a displacement a block in parentheses can start. */ | |
1334 | if (*str != '(') | |
1335 | { | |
67c1ffbe | 1336 | /* Check if parenthesized block can be skipped. If the next |
07855bec NC |
1337 | operand is neiter an optional operand nor a base register |
1338 | then we have a syntax error. */ | |
1339 | operand = s390_operands + *(++opindex_ptr); | |
1340 | if (!(operand->flags & (S390_OPERAND_INDEX|S390_OPERAND_BASE))) | |
1341 | as_bad (_("syntax error; missing '(' after displacement")); | |
1342 | ||
1343 | /* Ok, skip all operands until S390_OPERAND_BASE. */ | |
1344 | while (!(operand->flags & S390_OPERAND_BASE)) | |
1345 | operand = s390_operands + *(++opindex_ptr); | |
198ce79b | 1346 | |
67c1ffbe | 1347 | /* If there is a next operand it must be separated by a comma. */ |
07855bec NC |
1348 | if (opindex_ptr[1] != '\0') |
1349 | { | |
6c639ef9 MS |
1350 | if (*str != ',') |
1351 | { | |
1352 | while (opindex_ptr[1] != '\0') | |
1353 | { | |
1354 | operand = s390_operands + *(++opindex_ptr); | |
1355 | if (operand->flags & S390_OPERAND_OPTIONAL) | |
1356 | continue; | |
1357 | as_bad (_("syntax error; expected ,")); | |
1358 | break; | |
1359 | } | |
1360 | } | |
1361 | else | |
1362 | str++; | |
07855bec NC |
1363 | } |
1364 | } | |
1365 | else | |
1366 | { | |
1367 | /* We found an opening parentheses. */ | |
1368 | str++; | |
1369 | for (f = str; *f != '\0'; f++) | |
1370 | if (*f == ',' || *f == ')') | |
1371 | break; | |
1372 | /* If there is no comma until the closing parentheses OR | |
1373 | there is a comma right after the opening parentheses, | |
1374 | we have to skip optional operands. */ | |
1375 | if (*f == ',' && f == str) | |
1376 | { | |
1377 | /* comma directly after '(' ? */ | |
1378 | skip_optional = 1; | |
1379 | str++; | |
1380 | } | |
1381 | else | |
1382 | skip_optional = (*f != ','); | |
1383 | } | |
1384 | } | |
1385 | else if (operand->flags & S390_OPERAND_BASE) | |
1386 | { | |
1387 | /* After the base register the parenthesed block ends. */ | |
1388 | if (*str++ != ')') | |
1389 | as_bad (_("syntax error; missing ')' after base register")); | |
1390 | skip_optional = 0; | |
67c1ffbe | 1391 | /* If there is a next operand it must be separated by a comma. */ |
07855bec NC |
1392 | if (opindex_ptr[1] != '\0') |
1393 | { | |
6c639ef9 MS |
1394 | if (*str != ',') |
1395 | { | |
1396 | while (opindex_ptr[1] != '\0') | |
1397 | { | |
1398 | operand = s390_operands + *(++opindex_ptr); | |
1399 | if (operand->flags & S390_OPERAND_OPTIONAL) | |
1400 | continue; | |
1401 | as_bad (_("syntax error; expected ,")); | |
1402 | break; | |
1403 | } | |
1404 | } | |
1405 | else | |
1406 | str++; | |
07855bec NC |
1407 | } |
1408 | } | |
1409 | else | |
1410 | { | |
1411 | /* We can find an 'early' closing parentheses in e.g. D(L) instead | |
1412 | of D(L,B). In this case the base register has to be skipped. */ | |
1413 | if (*str == ')') | |
1414 | { | |
1415 | operand = s390_operands + *(++opindex_ptr); | |
1416 | ||
1417 | if (!(operand->flags & S390_OPERAND_BASE)) | |
1418 | as_bad (_("syntax error; ')' not allowed here")); | |
1419 | str++; | |
1420 | } | |
67c1ffbe | 1421 | /* If there is a next operand it must be separated by a comma. */ |
07855bec NC |
1422 | if (opindex_ptr[1] != '\0') |
1423 | { | |
6c639ef9 MS |
1424 | if (*str != ',') |
1425 | { | |
1426 | while (opindex_ptr[1] != '\0') | |
1427 | { | |
1428 | operand = s390_operands + *(++opindex_ptr); | |
1429 | if (operand->flags & S390_OPERAND_OPTIONAL) | |
1430 | continue; | |
1431 | as_bad (_("syntax error; expected ,")); | |
1432 | break; | |
1433 | } | |
1434 | } | |
1435 | else | |
1436 | str++; | |
07855bec | 1437 | } |
a85d7ed0 | 1438 | } |
a85d7ed0 | 1439 | } |
a85d7ed0 | 1440 | |
3882b010 | 1441 | while (ISSPACE (*str)) |
a85d7ed0 NC |
1442 | ++str; |
1443 | ||
1971b29d MS |
1444 | /* Check for tls instruction marker. */ |
1445 | reloc = s390_tls_suffix (&str, &ex); | |
1446 | if (reloc != BFD_RELOC_UNUSED) | |
1447 | { | |
1448 | /* We need to generate a fixup of type 'reloc' for this | |
1449 | instruction. */ | |
1450 | if (fc >= MAX_INSN_FIXUPS) | |
1451 | as_fatal (_("too many fixups")); | |
1452 | fixups[fc].exp = ex; | |
1453 | fixups[fc].opindex = -1; | |
1454 | fixups[fc].reloc = reloc; | |
1455 | ++fc; | |
1456 | } | |
1457 | ||
07855bec NC |
1458 | if (*str != '\0') |
1459 | { | |
1460 | char *linefeed; | |
a85d7ed0 | 1461 | |
07726851 | 1462 | if ((linefeed = strchr (str, '\n')) != NULL) |
07855bec NC |
1463 | *linefeed = '\0'; |
1464 | as_bad (_("junk at end of line: `%s'"), str); | |
1465 | if (linefeed != NULL) | |
1466 | *linefeed = '\n'; | |
1467 | } | |
a85d7ed0 NC |
1468 | |
1469 | /* Write out the instruction. */ | |
1470 | f = frag_more (opcode->oplen); | |
07855bec | 1471 | memcpy (f, insn, opcode->oplen); |
8f5b2891 | 1472 | dwarf2_emit_insn (opcode->oplen); |
a85d7ed0 NC |
1473 | |
1474 | /* Create any fixups. At this point we do not use a | |
1475 | bfd_reloc_code_real_type, but instead just use the | |
1476 | BFD_RELOC_UNUSED plus the operand index. This lets us easily | |
1477 | handle fixups for any operand type, although that is admittedly | |
1478 | not a very exciting feature. We pick a BFD reloc type in | |
55cf6793 | 1479 | md_apply_fix. */ |
07855bec NC |
1480 | for (i = 0; i < fc; i++) |
1481 | { | |
1971b29d MS |
1482 | |
1483 | if (fixups[i].opindex < 0) | |
1484 | { | |
1485 | /* Create tls instruction marker relocation. */ | |
1486 | fix_new_exp (frag_now, f - frag_now->fr_literal, opcode->oplen, | |
1487 | &fixups[i].exp, 0, fixups[i].reloc); | |
1488 | continue; | |
1489 | } | |
1490 | ||
07855bec | 1491 | operand = s390_operands + fixups[i].opindex; |
a85d7ed0 | 1492 | |
07855bec NC |
1493 | if (fixups[i].reloc != BFD_RELOC_UNUSED) |
1494 | { | |
1495 | reloc_howto_type *reloc_howto; | |
1496 | fixS *fixP; | |
1497 | int size; | |
198ce79b | 1498 | |
07855bec NC |
1499 | reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc); |
1500 | if (!reloc_howto) | |
1501 | abort (); | |
198ce79b | 1502 | |
07855bec NC |
1503 | size = bfd_get_reloc_size (reloc_howto); |
1504 | ||
1505 | if (size < 1 || size > 4) | |
1506 | abort (); | |
198ce79b AJ |
1507 | |
1508 | fixP = fix_new_exp (frag_now, | |
1509 | f - frag_now->fr_literal + (operand->shift/8), | |
07855bec NC |
1510 | size, &fixups[i].exp, reloc_howto->pc_relative, |
1511 | fixups[i].reloc); | |
1512 | /* Turn off overflow checking in fixup_segment. This is necessary | |
1513 | because fixup_segment will signal an overflow for large 4 byte | |
1514 | quantities for GOT12 relocations. */ | |
16a419ba | 1515 | if ( fixups[i].reloc == BFD_RELOC_390_GOT12 |
933fbc29 | 1516 | || fixups[i].reloc == BFD_RELOC_390_GOT20 |
16a419ba | 1517 | || fixups[i].reloc == BFD_RELOC_390_GOT16) |
07855bec NC |
1518 | fixP->fx_no_overflow = 1; |
1519 | } | |
1520 | else | |
1521 | fix_new_exp (frag_now, f - frag_now->fr_literal, 4, &fixups[i].exp, | |
1522 | (operand->flags & S390_OPERAND_PCREL) != 0, | |
1523 | ((bfd_reloc_code_real_type) | |
1524 | (fixups[i].opindex + (int) BFD_RELOC_UNUSED))); | |
1525 | } | |
a85d7ed0 NC |
1526 | return str; |
1527 | } | |
1528 | ||
1529 | /* This routine is called for each instruction to be assembled. */ | |
1530 | ||
1531 | void | |
5a49b8ac | 1532 | md_assemble (char *str) |
a85d7ed0 NC |
1533 | { |
1534 | const struct s390_opcode *opcode; | |
1535 | unsigned char insn[6]; | |
1536 | char *s; | |
1537 | ||
1538 | /* Get the opcode. */ | |
3882b010 | 1539 | for (s = str; *s != '\0' && ! ISSPACE (*s); s++) |
a85d7ed0 NC |
1540 | ; |
1541 | if (*s != '\0') | |
1542 | *s++ = '\0'; | |
1543 | ||
1544 | /* Look up the opcode in the hash table. */ | |
1545 | opcode = (struct s390_opcode *) hash_find (s390_opcode_hash, str); | |
07855bec NC |
1546 | if (opcode == (const struct s390_opcode *) NULL) |
1547 | { | |
1548 | as_bad (_("Unrecognized opcode: `%s'"), str); | |
1549 | return; | |
1550 | } | |
37a58793 MS |
1551 | else if (!(opcode->modes & current_mode_mask)) |
1552 | { | |
20203fb9 | 1553 | as_bad (_("Opcode %s not available in this mode"), str); |
37a58793 MS |
1554 | return; |
1555 | } | |
07726851 | 1556 | memcpy (insn, opcode->opcode, sizeof (insn)); |
07855bec | 1557 | md_gather_operands (s, insn, opcode); |
a85d7ed0 NC |
1558 | } |
1559 | ||
1560 | #ifndef WORKING_DOT_WORD | |
1561 | /* Handle long and short jumps. We don't support these */ | |
1562 | void | |
1563 | md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
1564 | char *ptr; | |
1565 | addressT from_addr, to_addr; | |
1566 | fragS *frag; | |
1567 | symbolS *to_symbol; | |
1568 | { | |
1569 | abort (); | |
1570 | } | |
1571 | ||
1572 | void | |
1573 | md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
1574 | char *ptr; | |
1575 | addressT from_addr, to_addr; | |
1576 | fragS *frag; | |
1577 | symbolS *to_symbol; | |
1578 | { | |
1579 | abort (); | |
1580 | } | |
1581 | #endif | |
1582 | ||
1583 | void | |
5a49b8ac | 1584 | s390_bss (int ignore ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
1585 | { |
1586 | /* We don't support putting frags in the BSS segment, we fake it | |
1587 | by marking in_bss, then looking at s_skip for clues. */ | |
1588 | ||
1589 | subseg_set (bss_section, 0); | |
1590 | demand_empty_rest_of_line (); | |
1591 | } | |
1592 | ||
1593 | /* Pseudo-op handling. */ | |
1594 | ||
1595 | void | |
5a49b8ac | 1596 | s390_insn (int ignore ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
1597 | { |
1598 | expressionS exp; | |
1599 | const struct s390_opcode *opformat; | |
1600 | unsigned char insn[6]; | |
1601 | char *s; | |
1602 | ||
1603 | /* Get the opcode format. */ | |
1604 | s = input_line_pointer; | |
3882b010 | 1605 | while (*s != '\0' && *s != ',' && ! ISSPACE (*s)) |
a85d7ed0 NC |
1606 | s++; |
1607 | if (*s != ',') | |
1608 | as_bad (_("Invalid .insn format\n")); | |
1609 | *s++ = '\0'; | |
1610 | ||
1611 | /* Look up the opcode in the hash table. */ | |
1612 | opformat = (struct s390_opcode *) | |
1613 | hash_find (s390_opformat_hash, input_line_pointer); | |
07855bec NC |
1614 | if (opformat == (const struct s390_opcode *) NULL) |
1615 | { | |
1616 | as_bad (_("Unrecognized opcode format: `%s'"), input_line_pointer); | |
1617 | return; | |
1618 | } | |
a85d7ed0 NC |
1619 | input_line_pointer = s; |
1620 | expression (&exp); | |
07855bec NC |
1621 | if (exp.X_op == O_constant) |
1622 | { | |
1d6d62a4 | 1623 | if ( ( opformat->oplen == 6 |
1d6d62a4 MS |
1624 | && (addressT) exp.X_add_number < (1ULL << 48)) |
1625 | || ( opformat->oplen == 4 | |
1d6d62a4 MS |
1626 | && (addressT) exp.X_add_number < (1ULL << 32)) |
1627 | || ( opformat->oplen == 2 | |
1d6d62a4 | 1628 | && (addressT) exp.X_add_number < (1ULL << 16))) |
2132e3a3 | 1629 | md_number_to_chars ((char *) insn, exp.X_add_number, opformat->oplen); |
07855bec | 1630 | else |
07726851 | 1631 | as_bad (_("Invalid .insn format\n")); |
07855bec NC |
1632 | } |
1633 | else if (exp.X_op == O_big) | |
1634 | { | |
16a419ba NC |
1635 | if (exp.X_add_number > 0 |
1636 | && opformat->oplen == 6 | |
1637 | && generic_bignum[3] == 0) | |
07855bec | 1638 | { |
2132e3a3 AM |
1639 | md_number_to_chars ((char *) insn, generic_bignum[2], 2); |
1640 | md_number_to_chars ((char *) &insn[2], generic_bignum[1], 2); | |
1641 | md_number_to_chars ((char *) &insn[4], generic_bignum[0], 2); | |
07855bec NC |
1642 | } |
1643 | else | |
07726851 | 1644 | as_bad (_("Invalid .insn format\n")); |
07855bec NC |
1645 | } |
1646 | else | |
a85d7ed0 | 1647 | as_bad (_("second operand of .insn not a constant\n")); |
a85d7ed0 | 1648 | |
b6849f55 NC |
1649 | if (strcmp (opformat->name, "e") != 0 && *input_line_pointer++ != ',') |
1650 | as_bad (_("missing comma after insn constant\n")); | |
98d3f06f | 1651 | |
07726851 | 1652 | if ((s = strchr (input_line_pointer, '\n')) != NULL) |
a85d7ed0 | 1653 | *s = '\0'; |
b6849f55 NC |
1654 | input_line_pointer = md_gather_operands (input_line_pointer, insn, |
1655 | opformat); | |
a85d7ed0 NC |
1656 | if (s != NULL) |
1657 | *s = '\n'; | |
1658 | demand_empty_rest_of_line (); | |
1659 | } | |
1660 | ||
1661 | /* The .byte pseudo-op. This is similar to the normal .byte | |
1662 | pseudo-op, but it can also take a single ASCII string. */ | |
1663 | ||
1664 | static void | |
5a49b8ac | 1665 | s390_byte (int ignore ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
1666 | { |
1667 | if (*input_line_pointer != '\"') | |
1668 | { | |
1669 | cons (1); | |
1670 | return; | |
1671 | } | |
1672 | ||
1673 | /* Gather characters. A real double quote is doubled. Unusual | |
1674 | characters are not permitted. */ | |
1675 | ++input_line_pointer; | |
1676 | while (1) | |
1677 | { | |
1678 | char c; | |
1679 | ||
1680 | c = *input_line_pointer++; | |
1681 | ||
1682 | if (c == '\"') | |
1683 | { | |
1684 | if (*input_line_pointer != '\"') | |
1685 | break; | |
1686 | ++input_line_pointer; | |
1687 | } | |
1688 | ||
1689 | FRAG_APPEND_1_CHAR (c); | |
1690 | } | |
1691 | ||
1692 | demand_empty_rest_of_line (); | |
1693 | } | |
1694 | ||
1695 | /* The .ltorg pseudo-op.This emits all literals defined since the last | |
198ce79b | 1696 | .ltorg or the invocation of gas. Literals are defined with the |
a85d7ed0 NC |
1697 | @lit suffix. */ |
1698 | ||
1699 | static void | |
5a49b8ac | 1700 | s390_literals (int ignore ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
1701 | { |
1702 | struct s390_lpe *lpe; | |
1703 | ||
1704 | if (lp_sym == NULL || lpe_count == 0) | |
98d3f06f | 1705 | return; /* Nothing to be done. */ |
a85d7ed0 NC |
1706 | |
1707 | /* Emit symbol for start of literal pool. */ | |
1708 | S_SET_SEGMENT (lp_sym, now_seg); | |
1709 | S_SET_VALUE (lp_sym, (valueT) frag_now_fix ()); | |
1710 | lp_sym->sy_frag = frag_now; | |
1711 | ||
07855bec NC |
1712 | while (lpe_list) |
1713 | { | |
1714 | lpe = lpe_list; | |
1715 | lpe_list = lpe_list->next; | |
1716 | S_SET_SEGMENT (lpe->sym, now_seg); | |
1717 | S_SET_VALUE (lpe->sym, (valueT) frag_now_fix ()); | |
1718 | lpe->sym->sy_frag = frag_now; | |
1719 | ||
1720 | /* Emit literal pool entry. */ | |
1721 | if (lpe->reloc != BFD_RELOC_UNUSED) | |
1722 | { | |
198ce79b | 1723 | reloc_howto_type *reloc_howto = |
07855bec NC |
1724 | bfd_reloc_type_lookup (stdoutput, lpe->reloc); |
1725 | int size = bfd_get_reloc_size (reloc_howto); | |
1726 | char *where; | |
1727 | ||
1728 | if (size > lpe->nbytes) | |
1729 | as_bad (_("%s relocations do not fit in %d bytes"), | |
1730 | reloc_howto->name, lpe->nbytes); | |
07726851 | 1731 | where = frag_more (lpe->nbytes); |
07855bec NC |
1732 | md_number_to_chars (where, 0, size); |
1733 | fix_new_exp (frag_now, where - frag_now->fr_literal, | |
1734 | size, &lpe->ex, reloc_howto->pc_relative, lpe->reloc); | |
1735 | } | |
1736 | else | |
1737 | { | |
1738 | if (lpe->ex.X_op == O_big) | |
1739 | { | |
1740 | if (lpe->ex.X_add_number <= 0) | |
1741 | generic_floating_point_number = lpe->floatnum; | |
1742 | else | |
1743 | memcpy (generic_bignum, lpe->bignum, | |
98d3f06f | 1744 | lpe->ex.X_add_number * sizeof (LITTLENUM_TYPE)); |
07855bec NC |
1745 | } |
1746 | emit_expr (&lpe->ex, lpe->nbytes); | |
1747 | } | |
a85d7ed0 | 1748 | |
07855bec NC |
1749 | lpe->next = lpe_free_list; |
1750 | lpe_free_list = lpe; | |
1751 | } | |
a85d7ed0 NC |
1752 | lpe_list_tail = NULL; |
1753 | lp_sym = NULL; | |
1754 | lp_count++; | |
1755 | lpe_count = 0; | |
1756 | } | |
1757 | ||
a85d7ed0 | 1758 | char * |
499ac353 | 1759 | md_atof (int type, char *litp, int *sizep) |
a85d7ed0 | 1760 | { |
499ac353 | 1761 | return ieee_md_atof (type, litp, sizep, TRUE); |
a85d7ed0 NC |
1762 | } |
1763 | ||
1764 | /* Align a section (I don't know why this is machine dependent). */ | |
1765 | ||
1766 | valueT | |
5a49b8ac | 1767 | md_section_align (asection *seg, valueT addr) |
a85d7ed0 NC |
1768 | { |
1769 | int align = bfd_get_section_alignment (stdoutput, seg); | |
1770 | ||
1771 | return ((addr + (1 << align) - 1) & (-1 << align)); | |
1772 | } | |
1773 | ||
1774 | /* We don't have any form of relaxing. */ | |
1775 | ||
1776 | int | |
5a49b8ac AM |
1777 | md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED, |
1778 | asection *seg ATTRIBUTE_UNUSED) | |
a85d7ed0 NC |
1779 | { |
1780 | abort (); | |
1781 | return 0; | |
1782 | } | |
1783 | ||
1784 | /* Convert a machine dependent frag. We never generate these. */ | |
1785 | ||
1786 | void | |
5a49b8ac AM |
1787 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, |
1788 | asection *sec ATTRIBUTE_UNUSED, | |
1789 | fragS *fragp ATTRIBUTE_UNUSED) | |
a85d7ed0 NC |
1790 | { |
1791 | abort (); | |
1792 | } | |
1793 | ||
1794 | symbolS * | |
5a49b8ac | 1795 | md_undefined_symbol (char *name) |
a85d7ed0 | 1796 | { |
98d3f06f | 1797 | if (*name == '_' && *(name + 1) == 'G' |
07726851 | 1798 | && strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0) |
98d3f06f KH |
1799 | { |
1800 | if (!GOT_symbol) | |
1801 | { | |
1802 | if (symbol_find (name)) | |
1803 | as_bad (_("GOT already in symbol table")); | |
1804 | GOT_symbol = symbol_new (name, undefined_section, | |
1805 | (valueT) 0, &zero_address_frag); | |
1806 | } | |
1807 | return GOT_symbol; | |
1808 | } | |
a85d7ed0 NC |
1809 | return 0; |
1810 | } | |
1811 | ||
1812 | /* Functions concerning relocs. */ | |
1813 | ||
1814 | /* The location from which a PC relative jump should be calculated, | |
1815 | given a PC relative reloc. */ | |
1816 | ||
1817 | long | |
5a49b8ac | 1818 | md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
1819 | { |
1820 | return fixp->fx_frag->fr_address + fixp->fx_where; | |
1821 | } | |
1822 | ||
1823 | /* Here we decide which fixups can be adjusted to make them relative to | |
1824 | the beginning of the section instead of the symbol. Basically we need | |
1825 | to make sure that the dynamic relocations are done correctly, so in | |
1826 | some cases we force the original symbol to be used. */ | |
1827 | int | |
5a49b8ac | 1828 | tc_s390_fix_adjustable (fixS *fixP) |
a85d7ed0 | 1829 | { |
0a00dd48 MS |
1830 | /* Don't adjust references to merge sections. */ |
1831 | if ((S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_MERGE) != 0) | |
1832 | return 0; | |
a85d7ed0 | 1833 | /* adjust_reloc_syms doesn't know about the GOT. */ |
2a19f73f MS |
1834 | if ( fixP->fx_r_type == BFD_RELOC_16_GOTOFF |
1835 | || fixP->fx_r_type == BFD_RELOC_32_GOTOFF | |
1836 | || fixP->fx_r_type == BFD_RELOC_390_GOTOFF64 | |
1837 | || fixP->fx_r_type == BFD_RELOC_390_PLTOFF16 | |
1838 | || fixP->fx_r_type == BFD_RELOC_390_PLTOFF32 | |
1839 | || fixP->fx_r_type == BFD_RELOC_390_PLTOFF64 | |
a85d7ed0 NC |
1840 | || fixP->fx_r_type == BFD_RELOC_390_PLT16DBL |
1841 | || fixP->fx_r_type == BFD_RELOC_390_PLT32 | |
1842 | || fixP->fx_r_type == BFD_RELOC_390_PLT32DBL | |
1843 | || fixP->fx_r_type == BFD_RELOC_390_PLT64 | |
1844 | || fixP->fx_r_type == BFD_RELOC_390_GOT12 | |
933fbc29 | 1845 | || fixP->fx_r_type == BFD_RELOC_390_GOT20 |
a85d7ed0 NC |
1846 | || fixP->fx_r_type == BFD_RELOC_390_GOT16 |
1847 | || fixP->fx_r_type == BFD_RELOC_32_GOT_PCREL | |
1848 | || fixP->fx_r_type == BFD_RELOC_390_GOT64 | |
07855bec | 1849 | || fixP->fx_r_type == BFD_RELOC_390_GOTENT |
2a19f73f MS |
1850 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT12 |
1851 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT16 | |
933fbc29 | 1852 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT20 |
2a19f73f MS |
1853 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT32 |
1854 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT64 | |
1855 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLTENT | |
1971b29d MS |
1856 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LOAD |
1857 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GDCALL | |
1858 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDCALL | |
1859 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GD32 | |
1860 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GD64 | |
1861 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE12 | |
933fbc29 | 1862 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE20 |
1971b29d MS |
1863 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE32 |
1864 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE64 | |
1865 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDM32 | |
1866 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDM64 | |
1867 | || fixP->fx_r_type == BFD_RELOC_390_TLS_IE32 | |
1868 | || fixP->fx_r_type == BFD_RELOC_390_TLS_IE64 | |
1869 | || fixP->fx_r_type == BFD_RELOC_390_TLS_IEENT | |
1870 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LE32 | |
1871 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LE64 | |
1872 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDO32 | |
1873 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDO64 | |
1874 | || fixP->fx_r_type == BFD_RELOC_390_TLS_DTPMOD | |
1875 | || fixP->fx_r_type == BFD_RELOC_390_TLS_DTPOFF | |
1876 | || fixP->fx_r_type == BFD_RELOC_390_TLS_TPOFF | |
a85d7ed0 NC |
1877 | || fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT |
1878 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
1879 | return 0; | |
1880 | return 1; | |
1881 | } | |
1882 | ||
b8edc45c | 1883 | /* Return true if we must always emit a reloc for a type and false if |
c03099e6 | 1884 | there is some hope of resolving it at assembly time. */ |
b8edc45c | 1885 | int |
5a49b8ac | 1886 | tc_s390_force_relocation (struct fix *fixp) |
b8edc45c MS |
1887 | { |
1888 | /* Ensure we emit a relocation for every reference to the global | |
1889 | offset table or to the procedure link table. */ | |
1890 | switch (fixp->fx_r_type) | |
1891 | { | |
1892 | case BFD_RELOC_390_GOT12: | |
933fbc29 | 1893 | case BFD_RELOC_390_GOT20: |
b8edc45c MS |
1894 | case BFD_RELOC_32_GOT_PCREL: |
1895 | case BFD_RELOC_32_GOTOFF: | |
2a19f73f MS |
1896 | case BFD_RELOC_390_GOTOFF64: |
1897 | case BFD_RELOC_390_PLTOFF16: | |
1898 | case BFD_RELOC_390_PLTOFF32: | |
1899 | case BFD_RELOC_390_PLTOFF64: | |
b8edc45c MS |
1900 | case BFD_RELOC_390_GOTPC: |
1901 | case BFD_RELOC_390_GOT16: | |
1902 | case BFD_RELOC_390_GOTPCDBL: | |
1903 | case BFD_RELOC_390_GOT64: | |
1904 | case BFD_RELOC_390_GOTENT: | |
1905 | case BFD_RELOC_390_PLT32: | |
1906 | case BFD_RELOC_390_PLT16DBL: | |
1907 | case BFD_RELOC_390_PLT32DBL: | |
1908 | case BFD_RELOC_390_PLT64: | |
2a19f73f MS |
1909 | case BFD_RELOC_390_GOTPLT12: |
1910 | case BFD_RELOC_390_GOTPLT16: | |
933fbc29 | 1911 | case BFD_RELOC_390_GOTPLT20: |
2a19f73f MS |
1912 | case BFD_RELOC_390_GOTPLT32: |
1913 | case BFD_RELOC_390_GOTPLT64: | |
1914 | case BFD_RELOC_390_GOTPLTENT: | |
b8edc45c MS |
1915 | return 1; |
1916 | default: | |
a161fe53 | 1917 | break;; |
b8edc45c | 1918 | } |
a161fe53 | 1919 | |
ae6063d4 | 1920 | return generic_force_reloc (fixp); |
b8edc45c MS |
1921 | } |
1922 | ||
a85d7ed0 NC |
1923 | /* Apply a fixup to the object code. This is called for all the |
1924 | fixups we generated by the call to fix_new_exp, above. In the call | |
1925 | above we used a reloc code which was the largest legal reloc code | |
1926 | plus the operand index. Here we undo that to recover the operand | |
1927 | index. At this point all symbol values should be fully resolved, | |
1928 | and we attempt to completely resolve the reloc. If we can not do | |
1929 | that, we determine the correct reloc code and put it back in the | |
1930 | fixup. */ | |
1931 | ||
94f592af | 1932 | void |
5a49b8ac | 1933 | md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
1934 | { |
1935 | char *where; | |
98d3f06f | 1936 | valueT value = *valP; |
a85d7ed0 | 1937 | |
94f592af | 1938 | where = fixP->fx_frag->fr_literal + fixP->fx_where; |
a85d7ed0 | 1939 | |
98d3f06f | 1940 | if (fixP->fx_subsy != NULL) |
f1fc51da | 1941 | as_bad_where (fixP->fx_file, fixP->fx_line, |
20203fb9 | 1942 | _("cannot emit relocation %s against subsy symbol %s"), |
f1fc51da MS |
1943 | bfd_get_reloc_code_name (fixP->fx_r_type), |
1944 | S_GET_NAME (fixP->fx_subsy)); | |
98d3f06f KH |
1945 | |
1946 | if (fixP->fx_addsy != NULL) | |
07855bec | 1947 | { |
94f592af NC |
1948 | if (fixP->fx_pcrel) |
1949 | value += fixP->fx_frag->fr_address + fixP->fx_where; | |
07855bec NC |
1950 | } |
1951 | else | |
94f592af | 1952 | fixP->fx_done = 1; |
a85d7ed0 | 1953 | |
94f592af | 1954 | if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED) |
07855bec NC |
1955 | { |
1956 | const struct s390_operand *operand; | |
1957 | int opindex; | |
198ce79b | 1958 | |
94f592af | 1959 | opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED; |
07855bec | 1960 | operand = &s390_operands[opindex]; |
198ce79b | 1961 | |
94f592af | 1962 | if (fixP->fx_done) |
07855bec NC |
1963 | { |
1964 | /* Insert the fully resolved operand value. */ | |
2132e3a3 AM |
1965 | s390_insert_operand ((unsigned char *) where, operand, |
1966 | (offsetT) value, fixP->fx_file, fixP->fx_line); | |
94f592af | 1967 | return; |
07855bec | 1968 | } |
198ce79b | 1969 | |
07855bec NC |
1970 | /* Determine a BFD reloc value based on the operand information. |
1971 | We are only prepared to turn a few of the operands into | |
1972 | relocs. */ | |
94f592af | 1973 | fixP->fx_offset = value; |
07855bec NC |
1974 | if (operand->bits == 12 && operand->shift == 20) |
1975 | { | |
94f592af NC |
1976 | fixP->fx_size = 2; |
1977 | fixP->fx_where += 2; | |
1978 | fixP->fx_r_type = BFD_RELOC_390_12; | |
07855bec NC |
1979 | } |
1980 | else if (operand->bits == 12 && operand->shift == 36) | |
1981 | { | |
94f592af NC |
1982 | fixP->fx_size = 2; |
1983 | fixP->fx_where += 4; | |
1984 | fixP->fx_r_type = BFD_RELOC_390_12; | |
07855bec | 1985 | } |
933fbc29 MS |
1986 | else if (operand->bits == 20 && operand->shift == 20) |
1987 | { | |
1988 | fixP->fx_size = 2; | |
1989 | fixP->fx_where += 2; | |
1990 | fixP->fx_r_type = BFD_RELOC_390_20; | |
1991 | } | |
07855bec NC |
1992 | else if (operand->bits == 8 && operand->shift == 8) |
1993 | { | |
94f592af NC |
1994 | fixP->fx_size = 1; |
1995 | fixP->fx_where += 1; | |
1996 | fixP->fx_r_type = BFD_RELOC_8; | |
07855bec NC |
1997 | } |
1998 | else if (operand->bits == 16 && operand->shift == 16) | |
1999 | { | |
94f592af NC |
2000 | fixP->fx_size = 2; |
2001 | fixP->fx_where += 2; | |
07855bec NC |
2002 | if (operand->flags & S390_OPERAND_PCREL) |
2003 | { | |
94f592af NC |
2004 | fixP->fx_r_type = BFD_RELOC_390_PC16DBL; |
2005 | fixP->fx_offset += 2; | |
07855bec NC |
2006 | } |
2007 | else | |
94f592af | 2008 | fixP->fx_r_type = BFD_RELOC_16; |
07855bec | 2009 | } |
16a419ba NC |
2010 | else if (operand->bits == 32 && operand->shift == 16 |
2011 | && (operand->flags & S390_OPERAND_PCREL)) | |
07855bec | 2012 | { |
94f592af NC |
2013 | fixP->fx_size = 4; |
2014 | fixP->fx_where += 2; | |
2015 | fixP->fx_offset += 2; | |
2016 | fixP->fx_r_type = BFD_RELOC_390_PC32DBL; | |
07855bec | 2017 | } |
a85d7ed0 | 2018 | else |
07855bec NC |
2019 | { |
2020 | char *sfile; | |
2021 | unsigned int sline; | |
198ce79b | 2022 | |
07855bec NC |
2023 | /* Use expr_symbol_where to see if this is an expression |
2024 | symbol. */ | |
94f592af NC |
2025 | if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline)) |
2026 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
07855bec NC |
2027 | _("unresolved expression that must be resolved")); |
2028 | else | |
94f592af | 2029 | as_bad_where (fixP->fx_file, fixP->fx_line, |
07855bec | 2030 | _("unsupported relocation type")); |
94f592af NC |
2031 | fixP->fx_done = 1; |
2032 | return; | |
07855bec | 2033 | } |
a85d7ed0 | 2034 | } |
07855bec NC |
2035 | else |
2036 | { | |
94f592af | 2037 | switch (fixP->fx_r_type) |
07855bec NC |
2038 | { |
2039 | case BFD_RELOC_8: | |
94f592af | 2040 | if (fixP->fx_pcrel) |
07855bec | 2041 | abort (); |
94f592af | 2042 | if (fixP->fx_done) |
07855bec NC |
2043 | md_number_to_chars (where, value, 1); |
2044 | break; | |
2045 | case BFD_RELOC_390_12: | |
2046 | case BFD_RELOC_390_GOT12: | |
2a19f73f | 2047 | case BFD_RELOC_390_GOTPLT12: |
94f592af | 2048 | if (fixP->fx_done) |
07855bec NC |
2049 | { |
2050 | unsigned short mop; | |
2051 | ||
2052 | mop = bfd_getb16 ((unsigned char *) where); | |
2053 | mop |= (unsigned short) (value & 0xfff); | |
2054 | bfd_putb16 ((bfd_vma) mop, (unsigned char *) where); | |
198ce79b | 2055 | } |
07855bec | 2056 | break; |
198ce79b | 2057 | |
933fbc29 MS |
2058 | case BFD_RELOC_390_20: |
2059 | case BFD_RELOC_390_GOT20: | |
2060 | case BFD_RELOC_390_GOTPLT20: | |
2061 | if (fixP->fx_done) | |
2062 | { | |
2063 | unsigned int mop; | |
2064 | mop = bfd_getb32 ((unsigned char *) where); | |
2065 | mop |= (unsigned int) ((value & 0xfff) << 8 | | |
2066 | (value & 0xff000) >> 12); | |
2067 | bfd_putb32 ((bfd_vma) mop, (unsigned char *) where); | |
2068 | } | |
2069 | break; | |
2070 | ||
07855bec NC |
2071 | case BFD_RELOC_16: |
2072 | case BFD_RELOC_GPREL16: | |
2073 | case BFD_RELOC_16_GOT_PCREL: | |
2074 | case BFD_RELOC_16_GOTOFF: | |
94f592af NC |
2075 | if (fixP->fx_pcrel) |
2076 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
20203fb9 | 2077 | _("cannot emit PC relative %s relocation%s%s"), |
94f592af NC |
2078 | bfd_get_reloc_code_name (fixP->fx_r_type), |
2079 | fixP->fx_addsy != NULL ? " against " : "", | |
2080 | (fixP->fx_addsy != NULL | |
2081 | ? S_GET_NAME (fixP->fx_addsy) | |
07855bec | 2082 | : "")); |
94f592af | 2083 | if (fixP->fx_done) |
07855bec NC |
2084 | md_number_to_chars (where, value, 2); |
2085 | break; | |
2086 | case BFD_RELOC_390_GOT16: | |
2a19f73f MS |
2087 | case BFD_RELOC_390_PLTOFF16: |
2088 | case BFD_RELOC_390_GOTPLT16: | |
94f592af | 2089 | if (fixP->fx_done) |
07855bec NC |
2090 | md_number_to_chars (where, value, 2); |
2091 | break; | |
2092 | case BFD_RELOC_390_PC16DBL: | |
2093 | case BFD_RELOC_390_PLT16DBL: | |
2094 | value += 2; | |
94f592af | 2095 | if (fixP->fx_done) |
07855bec NC |
2096 | md_number_to_chars (where, (offsetT) value >> 1, 2); |
2097 | break; | |
2098 | ||
2099 | case BFD_RELOC_32: | |
94f592af NC |
2100 | if (fixP->fx_pcrel) |
2101 | fixP->fx_r_type = BFD_RELOC_32_PCREL; | |
07855bec | 2102 | else |
94f592af NC |
2103 | fixP->fx_r_type = BFD_RELOC_32; |
2104 | if (fixP->fx_done) | |
07855bec NC |
2105 | md_number_to_chars (where, value, 4); |
2106 | break; | |
2107 | case BFD_RELOC_32_PCREL: | |
2108 | case BFD_RELOC_32_BASEREL: | |
94f592af NC |
2109 | fixP->fx_r_type = BFD_RELOC_32_PCREL; |
2110 | if (fixP->fx_done) | |
07855bec NC |
2111 | md_number_to_chars (where, value, 4); |
2112 | break; | |
2113 | case BFD_RELOC_32_GOT_PCREL: | |
2a19f73f | 2114 | case BFD_RELOC_390_PLTOFF32: |
07855bec | 2115 | case BFD_RELOC_390_PLT32: |
2a19f73f | 2116 | case BFD_RELOC_390_GOTPLT32: |
94f592af | 2117 | if (fixP->fx_done) |
07855bec NC |
2118 | md_number_to_chars (where, value, 4); |
2119 | break; | |
2120 | case BFD_RELOC_390_PC32DBL: | |
2121 | case BFD_RELOC_390_PLT32DBL: | |
2122 | case BFD_RELOC_390_GOTPCDBL: | |
2123 | case BFD_RELOC_390_GOTENT: | |
2a19f73f | 2124 | case BFD_RELOC_390_GOTPLTENT: |
07855bec | 2125 | value += 2; |
94f592af | 2126 | if (fixP->fx_done) |
07855bec NC |
2127 | md_number_to_chars (where, (offsetT) value >> 1, 4); |
2128 | break; | |
2129 | ||
2130 | case BFD_RELOC_32_GOTOFF: | |
94f592af | 2131 | if (fixP->fx_done) |
07726851 | 2132 | md_number_to_chars (where, value, sizeof (int)); |
07855bec NC |
2133 | break; |
2134 | ||
2a19f73f MS |
2135 | case BFD_RELOC_390_GOTOFF64: |
2136 | if (fixP->fx_done) | |
2137 | md_number_to_chars (where, value, 8); | |
2138 | break; | |
2139 | ||
07855bec | 2140 | case BFD_RELOC_390_GOT64: |
2a19f73f | 2141 | case BFD_RELOC_390_PLTOFF64: |
07855bec | 2142 | case BFD_RELOC_390_PLT64: |
2a19f73f | 2143 | case BFD_RELOC_390_GOTPLT64: |
94f592af | 2144 | if (fixP->fx_done) |
07855bec NC |
2145 | md_number_to_chars (where, value, 8); |
2146 | break; | |
2147 | ||
2148 | case BFD_RELOC_64: | |
94f592af NC |
2149 | if (fixP->fx_pcrel) |
2150 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
07855bec | 2151 | else |
94f592af NC |
2152 | fixP->fx_r_type = BFD_RELOC_64; |
2153 | if (fixP->fx_done) | |
07855bec NC |
2154 | md_number_to_chars (where, value, 8); |
2155 | break; | |
2156 | ||
2157 | case BFD_RELOC_64_PCREL: | |
94f592af NC |
2158 | fixP->fx_r_type = BFD_RELOC_64_PCREL; |
2159 | if (fixP->fx_done) | |
07855bec NC |
2160 | md_number_to_chars (where, value, 8); |
2161 | break; | |
2162 | ||
2163 | case BFD_RELOC_VTABLE_INHERIT: | |
2164 | case BFD_RELOC_VTABLE_ENTRY: | |
94f592af NC |
2165 | fixP->fx_done = 0; |
2166 | return; | |
07855bec | 2167 | |
1971b29d MS |
2168 | case BFD_RELOC_390_TLS_LOAD: |
2169 | case BFD_RELOC_390_TLS_GDCALL: | |
2170 | case BFD_RELOC_390_TLS_LDCALL: | |
2171 | case BFD_RELOC_390_TLS_GD32: | |
2172 | case BFD_RELOC_390_TLS_GD64: | |
2173 | case BFD_RELOC_390_TLS_GOTIE12: | |
933fbc29 | 2174 | case BFD_RELOC_390_TLS_GOTIE20: |
1971b29d MS |
2175 | case BFD_RELOC_390_TLS_GOTIE32: |
2176 | case BFD_RELOC_390_TLS_GOTIE64: | |
2177 | case BFD_RELOC_390_TLS_LDM32: | |
2178 | case BFD_RELOC_390_TLS_LDM64: | |
2179 | case BFD_RELOC_390_TLS_IE32: | |
2180 | case BFD_RELOC_390_TLS_IE64: | |
2181 | case BFD_RELOC_390_TLS_LE32: | |
2182 | case BFD_RELOC_390_TLS_LE64: | |
2183 | case BFD_RELOC_390_TLS_LDO32: | |
2184 | case BFD_RELOC_390_TLS_LDO64: | |
2185 | case BFD_RELOC_390_TLS_DTPMOD: | |
2186 | case BFD_RELOC_390_TLS_DTPOFF: | |
2187 | case BFD_RELOC_390_TLS_TPOFF: | |
7c1d0959 | 2188 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
1971b29d MS |
2189 | /* Fully resolved at link time. */ |
2190 | break; | |
2191 | case BFD_RELOC_390_TLS_IEENT: | |
2192 | /* Fully resolved at link time. */ | |
7c1d0959 | 2193 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
1971b29d MS |
2194 | value += 2; |
2195 | break; | |
2196 | ||
07855bec NC |
2197 | default: |
2198 | { | |
94f592af | 2199 | const char *reloc_name = bfd_get_reloc_code_name (fixP->fx_r_type); |
198ce79b | 2200 | |
07855bec | 2201 | if (reloc_name != NULL) |
20203fb9 | 2202 | as_fatal (_("Gas failure, reloc type %s\n"), reloc_name); |
07855bec | 2203 | else |
20203fb9 | 2204 | as_fatal (_("Gas failure, reloc type #%i\n"), fixP->fx_r_type); |
07855bec NC |
2205 | } |
2206 | } | |
a85d7ed0 | 2207 | |
94f592af | 2208 | fixP->fx_offset = value; |
07855bec | 2209 | } |
a85d7ed0 NC |
2210 | } |
2211 | ||
2212 | /* Generate a reloc for a fixup. */ | |
2213 | ||
2214 | arelent * | |
5a49b8ac | 2215 | tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp) |
a85d7ed0 NC |
2216 | { |
2217 | bfd_reloc_code_real_type code; | |
2218 | arelent *reloc; | |
2219 | ||
2220 | code = fixp->fx_r_type; | |
07855bec NC |
2221 | if (GOT_symbol && fixp->fx_addsy == GOT_symbol) |
2222 | { | |
16a419ba NC |
2223 | if ( (s390_arch_size == 32 && code == BFD_RELOC_32_PCREL) |
2224 | || (s390_arch_size == 64 && code == BFD_RELOC_64_PCREL)) | |
07855bec NC |
2225 | code = BFD_RELOC_390_GOTPC; |
2226 | if (code == BFD_RELOC_390_PC32DBL) | |
2227 | code = BFD_RELOC_390_GOTPCDBL; | |
2228 | } | |
a85d7ed0 NC |
2229 | |
2230 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
2231 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); | |
2232 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
2233 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
2234 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
2235 | if (reloc->howto == NULL) | |
2236 | { | |
2237 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
98d3f06f KH |
2238 | _("cannot represent relocation type %s"), |
2239 | bfd_get_reloc_code_name (code)); | |
a85d7ed0 NC |
2240 | /* Set howto to a garbage value so that we can keep going. */ |
2241 | reloc->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); | |
9c2799c2 | 2242 | gas_assert (reloc->howto != NULL); |
a85d7ed0 NC |
2243 | } |
2244 | reloc->addend = fixp->fx_offset; | |
2245 | ||
2246 | return reloc; | |
2247 | } | |
75e21f08 JJ |
2248 | |
2249 | void | |
5a49b8ac | 2250 | s390_cfi_frame_initial_instructions (void) |
75e21f08 JJ |
2251 | { |
2252 | cfi_add_CFA_def_cfa (15, s390_arch_size == 64 ? 160 : 96); | |
2253 | } | |
2254 | ||
2255 | int | |
1df69f4f | 2256 | tc_s390_regname_to_dw2regnum (char *regname) |
75e21f08 JJ |
2257 | { |
2258 | int regnum = -1; | |
2259 | ||
2260 | if (regname[0] != 'c' && regname[0] != 'a') | |
2261 | { | |
2262 | regnum = reg_name_search (pre_defined_registers, REG_NAME_CNT, regname); | |
2263 | if (regname[0] == 'f' && regnum != -1) | |
2264 | regnum += 16; | |
2265 | } | |
2266 | else if (strcmp (regname, "ap") == 0) | |
2267 | regnum = 32; | |
2268 | else if (strcmp (regname, "cc") == 0) | |
2269 | regnum = 33; | |
2270 | return regnum; | |
2271 | } | |
55786da2 AK |
2272 | |
2273 | void | |
2274 | s390_elf_final_processing (void) | |
2275 | { | |
2276 | if (s390_arch_size == 32 && (current_mode_mask & (1 << S390_OPCODE_ZARCH))) | |
2277 | elf_elfheader (stdoutput)->e_flags |= EF_S390_HIGH_GPRS; | |
2278 | } |