Commit | Line | Data |
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a85d7ed0 | 1 | /* tc-s390.c -- Assemble for the S390 |
b3adc24a | 2 | Copyright (C) 2000-2020 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 | 24 | #include "subsegs.h" |
a161fe53 | 25 | #include "dwarf2dbg.h" |
75e21f08 | 26 | #include "dw2gencfi.h" |
a85d7ed0 NC |
27 | |
28 | #include "opcode/s390.h" | |
29 | #include "elf/s390.h" | |
30 | ||
16a419ba | 31 | /* The default architecture. */ |
a85d7ed0 NC |
32 | #ifndef DEFAULT_ARCH |
33 | #define DEFAULT_ARCH "s390" | |
34 | #endif | |
f86f5863 | 35 | static const char *default_arch = DEFAULT_ARCH; |
a85d7ed0 | 36 | /* Either 32 or 64, selects file format. */ |
37a58793 MS |
37 | static int s390_arch_size = 0; |
38 | ||
1e8766d7 AK |
39 | /* If no -march option was given default to the highest available CPU. |
40 | Since with S/390 a newer CPU always supports everything from its | |
41 | predecessors this will accept every valid asm input. */ | |
42 | static unsigned int current_cpu = S390_OPCODE_MAXCPU - 1; | |
58af6397 AK |
43 | /* All facilities are enabled by default. */ |
44 | static unsigned int current_flags = S390_INSTR_FLAG_FACILITY_MASK; | |
45 | /* The mode mask default is picked in init_default_arch depending on | |
46 | the current cpu. */ | |
37a58793 | 47 | static unsigned int current_mode_mask = 0; |
a85d7ed0 | 48 | |
1dd53816 AK |
49 | /* Set to TRUE if the highgprs flag in the ELF header needs to be set |
50 | for the output file. */ | |
51 | static bfd_boolean set_highgprs_p = FALSE; | |
52 | ||
b34976b6 | 53 | /* Whether to use user friendly register names. Default is TRUE. */ |
a85d7ed0 | 54 | #ifndef TARGET_REG_NAMES_P |
b34976b6 | 55 | #define TARGET_REG_NAMES_P TRUE |
a85d7ed0 NC |
56 | #endif |
57 | ||
b34976b6 | 58 | static bfd_boolean reg_names_p = TARGET_REG_NAMES_P; |
a85d7ed0 | 59 | |
16a419ba | 60 | /* Set to TRUE if we want to warn about zero base/index registers. */ |
b34976b6 | 61 | static bfd_boolean warn_areg_zero = FALSE; |
16a419ba | 62 | |
a85d7ed0 NC |
63 | /* Generic assembler global variables which must be defined by all |
64 | targets. */ | |
65 | ||
66 | const char comment_chars[] = "#"; | |
67 | ||
68 | /* Characters which start a comment at the beginning of a line. */ | |
69 | const char line_comment_chars[] = "#"; | |
70 | ||
71 | /* Characters which may be used to separate multiple commands on a | |
72 | single line. */ | |
73 | const char line_separator_chars[] = ";"; | |
74 | ||
75 | /* Characters which are used to indicate an exponent in a floating | |
76 | point number. */ | |
77 | const char EXP_CHARS[] = "eE"; | |
78 | ||
79 | /* Characters which mean that a number is a floating point constant, | |
80 | as in 0d1.0. */ | |
81 | const char FLT_CHARS[] = "dD"; | |
82 | ||
75e21f08 JJ |
83 | /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */ |
84 | int s390_cie_data_alignment; | |
85 | ||
a85d7ed0 NC |
86 | /* The target specific pseudo-ops which we support. */ |
87 | ||
88 | /* Define the prototypes for the pseudo-ops */ | |
5a49b8ac AM |
89 | static void s390_byte (int); |
90 | static void s390_elf_cons (int); | |
91 | static void s390_bss (int); | |
92 | static void s390_insn (int); | |
93 | static void s390_literals (int); | |
902cc293 | 94 | static void s390_machine (int); |
1dd53816 | 95 | static void s390_machinemode (int); |
a85d7ed0 NC |
96 | |
97 | const pseudo_typeS md_pseudo_table[] = | |
98 | { | |
1dd53816 | 99 | { "align", s_align_bytes, 0 }, |
98d3f06f | 100 | /* Pseudo-ops which must be defined. */ |
1dd53816 AK |
101 | { "bss", s390_bss, 0 }, |
102 | { "insn", s390_insn, 0 }, | |
a85d7ed0 | 103 | /* Pseudo-ops which must be overridden. */ |
1dd53816 AK |
104 | { "byte", s390_byte, 0 }, |
105 | { "short", s390_elf_cons, 2 }, | |
106 | { "long", s390_elf_cons, 4 }, | |
107 | { "quad", s390_elf_cons, 8 }, | |
108 | { "ltorg", s390_literals, 0 }, | |
109 | { "string", stringer, 8 + 1 }, | |
110 | { "machine", s390_machine, 0 }, | |
111 | { "machinemode", s390_machinemode, 0 }, | |
112 | { NULL, NULL, 0 } | |
a85d7ed0 NC |
113 | }; |
114 | ||
a85d7ed0 NC |
115 | /* Given NAME, find the register number associated with that name, return |
116 | the integer value associated with the given name or -1 on failure. */ | |
117 | ||
118 | static int | |
1e2e8c52 | 119 | reg_name_search (const char *name) |
a85d7ed0 | 120 | { |
1e2e8c52 | 121 | int val = -1; |
a85d7ed0 | 122 | |
1e2e8c52 AK |
123 | if (strcasecmp (name, "lit") == 0) |
124 | return 13; | |
a85d7ed0 | 125 | |
1e2e8c52 AK |
126 | if (strcasecmp (name, "sp") == 0) |
127 | return 15; | |
128 | ||
129 | if (name[0] != 'a' && name[0] != 'c' && name[0] != 'f' | |
130 | && name[0] != 'r' && name[0] != 'v') | |
131 | return -1; | |
132 | ||
133 | if (ISDIGIT (name[1])) | |
a85d7ed0 | 134 | { |
1e2e8c52 AK |
135 | val = name[1] - '0'; |
136 | if (ISDIGIT (name[2])) | |
137 | val = val * 10 + name[2] - '0'; | |
a85d7ed0 | 138 | } |
a85d7ed0 | 139 | |
1e2e8c52 AK |
140 | if ((name[0] != 'v' && val > 15) || val > 31) |
141 | val = -1; | |
142 | ||
143 | return val; | |
a85d7ed0 NC |
144 | } |
145 | ||
146 | ||
147 | /* | |
148 | * Summary of register_name(). | |
149 | * | |
150 | * in: Input_line_pointer points to 1st char of operand. | |
151 | * | |
152 | * out: A expressionS. | |
153 | * The operand may have been a register: in this case, X_op == O_register, | |
154 | * X_add_number is set to the register number, and truth is returned. | |
155 | * Input_line_pointer->(next non-blank) char after operand, or is in its | |
156 | * original state. | |
157 | */ | |
158 | ||
b34976b6 | 159 | static bfd_boolean |
5a49b8ac | 160 | register_name (expressionS *expressionP) |
a85d7ed0 NC |
161 | { |
162 | int reg_number; | |
163 | char *name; | |
164 | char *start; | |
165 | char c; | |
166 | ||
468cced8 | 167 | /* Find the spelling of the operand. */ |
a85d7ed0 | 168 | start = name = input_line_pointer; |
3882b010 | 169 | if (name[0] == '%' && ISALPHA (name[1])) |
a85d7ed0 NC |
170 | name = ++input_line_pointer; |
171 | else | |
b34976b6 | 172 | return FALSE; |
a85d7ed0 | 173 | |
d02603dc | 174 | c = get_symbol_name (&name); |
1e2e8c52 | 175 | reg_number = reg_name_search (name); |
a85d7ed0 | 176 | |
468cced8 | 177 | /* Put back the delimiting char. */ |
d02603dc | 178 | (void) restore_line_pointer (c); |
468cced8 AM |
179 | |
180 | /* Look to see if it's in the register table. */ | |
198ce79b | 181 | if (reg_number >= 0) |
a85d7ed0 NC |
182 | { |
183 | expressionP->X_op = O_register; | |
184 | expressionP->X_add_number = reg_number; | |
198ce79b | 185 | |
468cced8 | 186 | /* Make the rest nice. */ |
a85d7ed0 NC |
187 | expressionP->X_add_symbol = NULL; |
188 | expressionP->X_op_symbol = NULL; | |
b34976b6 | 189 | return TRUE; |
a85d7ed0 | 190 | } |
468cced8 AM |
191 | |
192 | /* Reset the line as if we had not done anything. */ | |
193 | input_line_pointer = start; | |
b34976b6 | 194 | return FALSE; |
a85d7ed0 NC |
195 | } |
196 | ||
197 | /* Local variables. */ | |
198 | ||
199 | /* Opformat hash table. */ | |
629310ab | 200 | static htab_t s390_opformat_hash; |
a85d7ed0 NC |
201 | |
202 | /* Opcode hash table. */ | |
629310ab | 203 | static htab_t s390_opcode_hash = NULL; |
a85d7ed0 NC |
204 | |
205 | /* Flags to set in the elf header */ | |
206 | static flagword s390_flags = 0; | |
207 | ||
208 | symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE_" */ | |
209 | ||
210 | #ifndef WORKING_DOT_WORD | |
2b4f075a HPN |
211 | int md_short_jump_size = 4; |
212 | int md_long_jump_size = 4; | |
a85d7ed0 NC |
213 | #endif |
214 | ||
5a38dc70 | 215 | const char *md_shortopts = "A:m:kVQ:"; |
a85d7ed0 NC |
216 | struct option md_longopts[] = { |
217 | {NULL, no_argument, NULL, 0} | |
218 | }; | |
07726851 | 219 | size_t md_longopts_size = sizeof (md_longopts); |
a85d7ed0 NC |
220 | |
221 | /* Initialize the default opcode arch and word size from the default | |
37a58793 | 222 | architecture name if not specified by an option. */ |
a85d7ed0 | 223 | static void |
5a49b8ac | 224 | init_default_arch (void) |
a85d7ed0 | 225 | { |
07726851 | 226 | if (strcmp (default_arch, "s390") == 0) |
07855bec | 227 | { |
37a58793 MS |
228 | if (s390_arch_size == 0) |
229 | s390_arch_size = 32; | |
07855bec | 230 | } |
07726851 | 231 | else if (strcmp (default_arch, "s390x") == 0) |
07855bec | 232 | { |
37a58793 MS |
233 | if (s390_arch_size == 0) |
234 | s390_arch_size = 64; | |
07855bec NC |
235 | } |
236 | else | |
20203fb9 | 237 | as_fatal (_("Invalid default architecture, broken assembler.")); |
df9a398f MS |
238 | |
239 | if (current_mode_mask == 0) | |
240 | { | |
1e8766d7 AK |
241 | /* Default to z/Architecture mode if the CPU supports it. */ |
242 | if (current_cpu < S390_OPCODE_Z900) | |
df9a398f MS |
243 | current_mode_mask = 1 << S390_OPCODE_ESA; |
244 | else | |
245 | current_mode_mask = 1 << S390_OPCODE_ZARCH; | |
246 | } | |
a85d7ed0 NC |
247 | } |
248 | ||
249 | /* Called by TARGET_FORMAT. */ | |
250 | const char * | |
5a49b8ac | 251 | s390_target_format (void) |
a85d7ed0 NC |
252 | { |
253 | /* We don't get a chance to initialize anything before we're called, | |
254 | so handle that now. */ | |
2ebb4b88 | 255 | init_default_arch (); |
a85d7ed0 NC |
256 | |
257 | return s390_arch_size == 64 ? "elf64-s390" : "elf32-s390"; | |
258 | } | |
259 | ||
7ecc513a DV |
260 | /* Map a cpu string ARG as given with -march= or .machine to the respective |
261 | enum s390_opcode_cpu_val value. If ALLOW_EXTENSIONS is TRUE, the cpu name | |
262 | can be followed by a list of cpu facility flags each beginning with the | |
263 | character '+'. The active cpu flags are returned through *RET_FLAGS. | |
264 | In case of an error, S390_OPCODE_MAXCPU is returned. */ | |
902cc293 AK |
265 | |
266 | static unsigned int | |
17b9d67d | 267 | s390_parse_cpu (const char * arg, |
7ecc513a DV |
268 | unsigned int * ret_flags, |
269 | bfd_boolean allow_extensions) | |
902cc293 | 270 | { |
7ecc513a DV |
271 | static struct |
272 | { | |
273 | const char * name; | |
952c3f51 AK |
274 | unsigned int name_len; |
275 | const char * alt_name; | |
276 | unsigned int alt_name_len; | |
7ecc513a DV |
277 | unsigned int flags; |
278 | } cpu_table[S390_OPCODE_MAXCPU] = | |
279 | { | |
952c3f51 AK |
280 | { STRING_COMMA_LEN ("g5"), STRING_COMMA_LEN ("arch3"), 0 }, |
281 | { STRING_COMMA_LEN ("g6"), STRING_COMMA_LEN (""), 0 }, | |
282 | { STRING_COMMA_LEN ("z900"), STRING_COMMA_LEN ("arch5"), 0 }, | |
283 | { STRING_COMMA_LEN ("z990"), STRING_COMMA_LEN ("arch6"), 0 }, | |
284 | { STRING_COMMA_LEN ("z9-109"), STRING_COMMA_LEN (""), 0 }, | |
285 | { STRING_COMMA_LEN ("z9-ec"), STRING_COMMA_LEN ("arch7"), 0 }, | |
286 | { STRING_COMMA_LEN ("z10"), STRING_COMMA_LEN ("arch8"), 0 }, | |
287 | { STRING_COMMA_LEN ("z196"), STRING_COMMA_LEN ("arch9"), 0 }, | |
288 | { STRING_COMMA_LEN ("zEC12"), STRING_COMMA_LEN ("arch10"), | |
289 | S390_INSTR_FLAG_HTM }, | |
290 | { STRING_COMMA_LEN ("z13"), STRING_COMMA_LEN ("arch11"), | |
64025b4e | 291 | S390_INSTR_FLAG_HTM | S390_INSTR_FLAG_VX }, |
47826cdb | 292 | { STRING_COMMA_LEN ("z14"), STRING_COMMA_LEN ("arch12"), |
fc60b8c8 | 293 | S390_INSTR_FLAG_HTM | S390_INSTR_FLAG_VX }, |
46e292ab | 294 | { STRING_COMMA_LEN ("z15"), STRING_COMMA_LEN ("arch13"), |
2253c8f0 | 295 | S390_INSTR_FLAG_HTM | S390_INSTR_FLAG_VX } |
7ecc513a DV |
296 | }; |
297 | static struct | |
298 | { | |
299 | const char * name; | |
300 | unsigned int mask; | |
301 | bfd_boolean on; | |
302 | } cpu_flags[] = | |
303 | { | |
304 | { "htm", S390_INSTR_FLAG_HTM, TRUE }, | |
305 | { "nohtm", S390_INSTR_FLAG_HTM, FALSE }, | |
306 | { "vx", S390_INSTR_FLAG_VX, TRUE }, | |
2253c8f0 | 307 | { "novx", S390_INSTR_FLAG_VX, FALSE } |
7ecc513a DV |
308 | }; |
309 | unsigned int icpu; | |
310 | char *ilp_bak; | |
311 | ||
312 | icpu = S390_OPCODE_MAXCPU; | |
313 | if (strncmp (arg, "all", 3) == 0 && (arg[3] == 0 || arg[3] == '+')) | |
314 | { | |
315 | icpu = S390_OPCODE_MAXCPU - 1; | |
316 | arg += 3; | |
317 | } | |
902cc293 | 318 | else |
7ecc513a DV |
319 | { |
320 | for (icpu = 0; icpu < S390_OPCODE_MAXCPU; icpu++) | |
321 | { | |
952c3f51 AK |
322 | unsigned int l, l_alt; |
323 | ||
324 | l = cpu_table[icpu].name_len; | |
7ecc513a | 325 | |
7ecc513a DV |
326 | if (strncmp (arg, cpu_table[icpu].name, l) == 0 |
327 | && (arg[l] == 0 || arg[l] == '+')) | |
328 | { | |
329 | arg += l; | |
330 | break; | |
331 | } | |
952c3f51 AK |
332 | |
333 | l_alt = cpu_table[icpu].alt_name_len; | |
334 | ||
335 | if (l_alt > 0 | |
336 | && strncmp (arg, cpu_table[icpu].alt_name, l_alt) == 0 | |
337 | && (arg[l_alt] == 0 || arg[l_alt] == '+')) | |
338 | { | |
339 | arg += l_alt; | |
340 | break; | |
341 | } | |
7ecc513a DV |
342 | } |
343 | } | |
344 | ||
952c3f51 AK |
345 | if (icpu == S390_OPCODE_MAXCPU) |
346 | return S390_OPCODE_MAXCPU; | |
347 | ||
7ecc513a DV |
348 | ilp_bak = input_line_pointer; |
349 | if (icpu != S390_OPCODE_MAXCPU) | |
350 | { | |
17b9d67d | 351 | input_line_pointer = (char *) arg; |
7ecc513a DV |
352 | *ret_flags = (cpu_table[icpu].flags & S390_INSTR_FLAG_FACILITY_MASK); |
353 | ||
354 | while (*input_line_pointer == '+' && allow_extensions) | |
355 | { | |
356 | unsigned int iflag; | |
357 | char *sym; | |
358 | char c; | |
359 | ||
360 | input_line_pointer++; | |
361 | c = get_symbol_name (&sym); | |
362 | for (iflag = 0; iflag < ARRAY_SIZE (cpu_flags); iflag++) | |
363 | { | |
364 | if (strcmp (sym, cpu_flags[iflag].name) == 0) | |
365 | { | |
366 | if (cpu_flags[iflag].on) | |
367 | *ret_flags |= cpu_flags[iflag].mask; | |
368 | else | |
369 | *ret_flags &= ~cpu_flags[iflag].mask; | |
370 | break; | |
371 | } | |
372 | } | |
373 | if (iflag == ARRAY_SIZE (cpu_flags)) | |
374 | as_bad (_("no such machine extension `%s'"), sym - 1); | |
375 | *input_line_pointer = c; | |
376 | if (iflag == ARRAY_SIZE (cpu_flags)) | |
377 | break; | |
378 | } | |
379 | } | |
380 | ||
381 | SKIP_WHITESPACE (); | |
382 | ||
383 | if (*input_line_pointer != 0 && *input_line_pointer != '\n') | |
384 | { | |
385 | as_bad (_("junk at end of machine string, first unrecognized character" | |
386 | " is `%c'"), *input_line_pointer); | |
387 | icpu = S390_OPCODE_MAXCPU; | |
388 | } | |
389 | input_line_pointer = ilp_bak; | |
390 | ||
391 | return icpu; | |
902cc293 AK |
392 | } |
393 | ||
a85d7ed0 | 394 | int |
17b9d67d | 395 | md_parse_option (int c, const char *arg) |
a85d7ed0 | 396 | { |
07855bec NC |
397 | switch (c) |
398 | { | |
399 | /* -k: Ignore for FreeBSD compatibility. */ | |
400 | case 'k': | |
401 | break; | |
402 | case 'm': | |
403 | if (arg != NULL && strcmp (arg, "regnames") == 0) | |
b34976b6 | 404 | reg_names_p = TRUE; |
198ce79b | 405 | |
07855bec | 406 | else if (arg != NULL && strcmp (arg, "no-regnames") == 0) |
b34976b6 | 407 | reg_names_p = FALSE; |
198ce79b | 408 | |
16a419ba NC |
409 | else if (arg != NULL && strcmp (arg, "warn-areg-zero") == 0) |
410 | warn_areg_zero = TRUE; | |
411 | ||
ff0fb565 | 412 | else if (arg != NULL && strcmp (arg, "31") == 0) |
75504fed | 413 | s390_arch_size = 32; |
ff0fb565 MS |
414 | |
415 | else if (arg != NULL && strcmp (arg, "64") == 0) | |
416 | s390_arch_size = 64; | |
417 | ||
37a58793 MS |
418 | else if (arg != NULL && strcmp (arg, "esa") == 0) |
419 | current_mode_mask = 1 << S390_OPCODE_ESA; | |
420 | ||
421 | else if (arg != NULL && strcmp (arg, "zarch") == 0) | |
1dd53816 AK |
422 | { |
423 | if (s390_arch_size == 32) | |
424 | set_highgprs_p = TRUE; | |
425 | current_mode_mask = 1 << S390_OPCODE_ZARCH; | |
426 | } | |
37a58793 MS |
427 | |
428 | else if (arg != NULL && strncmp (arg, "arch=", 5) == 0) | |
429 | { | |
7ecc513a DV |
430 | current_cpu = s390_parse_cpu (arg + 5, ¤t_flags, FALSE); |
431 | if (current_cpu == S390_OPCODE_MAXCPU) | |
37a58793 MS |
432 | { |
433 | as_bad (_("invalid switch -m%s"), arg); | |
434 | return 0; | |
435 | } | |
436 | } | |
437 | ||
07855bec NC |
438 | else |
439 | { | |
440 | as_bad (_("invalid switch -m%s"), arg); | |
441 | return 0; | |
442 | } | |
443 | break; | |
198ce79b | 444 | |
07855bec | 445 | case 'A': |
67c1ffbe | 446 | /* Option -A is deprecated. Still available for compatibility. */ |
07855bec | 447 | if (arg != NULL && strcmp (arg, "esa") == 0) |
37a58793 | 448 | current_cpu = S390_OPCODE_G5; |
07855bec | 449 | else if (arg != NULL && strcmp (arg, "esame") == 0) |
37a58793 | 450 | current_cpu = S390_OPCODE_Z900; |
07855bec | 451 | else |
20203fb9 | 452 | as_bad (_("invalid architecture -A%s"), arg); |
07855bec NC |
453 | break; |
454 | ||
455 | /* -V: SVR4 argument to print version ID. */ | |
456 | case 'V': | |
457 | print_version_id (); | |
458 | break; | |
198ce79b | 459 | |
07855bec NC |
460 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section |
461 | should be emitted or not. FIXME: Not implemented. */ | |
462 | case 'Q': | |
463 | break; | |
198ce79b | 464 | |
07855bec NC |
465 | default: |
466 | return 0; | |
467 | } | |
198ce79b | 468 | |
a85d7ed0 NC |
469 | return 1; |
470 | } | |
471 | ||
472 | void | |
5a49b8ac | 473 | md_show_usage (FILE *stream) |
a85d7ed0 | 474 | { |
07855bec | 475 | fprintf (stream, _("\ |
16a419ba NC |
476 | S390 options:\n\ |
477 | -mregnames Allow symbolic names for registers\n\ | |
478 | -mwarn-areg-zero Warn about zero base/index registers\n\ | |
ff0fb565 MS |
479 | -mno-regnames Do not allow symbolic names for registers\n\ |
480 | -m31 Set file format to 31 bit format\n\ | |
481 | -m64 Set file format to 64 bit format\n")); | |
07855bec | 482 | fprintf (stream, _("\ |
16a419ba NC |
483 | -V print assembler version number\n\ |
484 | -Qy, -Qn ignored\n")); | |
a85d7ed0 NC |
485 | } |
486 | ||
902cc293 AK |
487 | /* Generate the hash table mapping mnemonics to struct s390_opcode. |
488 | This table is built at startup and whenever the CPU level is | |
489 | changed using .machine. */ | |
a85d7ed0 | 490 | |
902cc293 AK |
491 | static void |
492 | s390_setup_opcodes (void) | |
a85d7ed0 | 493 | { |
ed9e98c2 | 494 | const struct s390_opcode *op; |
a85d7ed0 | 495 | const struct s390_opcode *op_end; |
b34976b6 | 496 | bfd_boolean dup_insn = FALSE; |
a85d7ed0 | 497 | |
902cc293 | 498 | if (s390_opcode_hash != NULL) |
629310ab | 499 | htab_delete (s390_opcode_hash); |
a85d7ed0 NC |
500 | |
501 | /* Insert the opcodes into a hash table. */ | |
629310ab | 502 | s390_opcode_hash = str_htab_create (); |
a85d7ed0 NC |
503 | |
504 | op_end = s390_opcodes + s390_num_opcodes; | |
07855bec | 505 | for (op = s390_opcodes; op < op_end; op++) |
e6181b6a | 506 | { |
7ecc513a DV |
507 | int use_opcode; |
508 | ||
e6181b6a MS |
509 | while (op < op_end - 1 && strcmp(op->name, op[1].name) == 0) |
510 | { | |
511 | if (op->min_cpu <= current_cpu && (op->modes & current_mode_mask)) | |
512 | break; | |
933fbc29 | 513 | op++; |
e6181b6a | 514 | } |
be7a250d | 515 | |
7ecc513a DV |
516 | if ((op->modes & current_mode_mask) == 0) |
517 | use_opcode = 0; | |
518 | else if ((op->flags & S390_INSTR_FLAG_FACILITY_MASK) == 0) | |
519 | { | |
520 | /* Opcodes that do not belong to a specific facility are enabled if | |
521 | present in the selected cpu. */ | |
522 | use_opcode = (op->min_cpu <= current_cpu); | |
523 | } | |
524 | else | |
525 | { | |
526 | unsigned int f; | |
527 | ||
528 | /* Opcodes of a specific facility are enabled if the facility is | |
529 | enabled. Note: only some facilities are represented as flags. */ | |
530 | f = (op->flags & S390_INSTR_FLAG_FACILITY_MASK); | |
531 | use_opcode = ((f & current_flags) == f); | |
532 | } | |
fe0e921f AM |
533 | if (use_opcode |
534 | && str_hash_insert (s390_opcode_hash, op->name, op, 0) != NULL) | |
535 | { | |
536 | as_bad (_("duplicate %s"), op->name); | |
537 | dup_insn = TRUE; | |
538 | } | |
be7a250d | 539 | |
e6181b6a MS |
540 | while (op < op_end - 1 && strcmp (op->name, op[1].name) == 0) |
541 | op++; | |
7ecc513a | 542 | } |
07855bec | 543 | |
a85d7ed0 NC |
544 | if (dup_insn) |
545 | abort (); | |
902cc293 AK |
546 | } |
547 | ||
548 | /* This function is called when the assembler starts up. It is called | |
549 | after the options have been parsed and the output file has been | |
550 | opened. */ | |
551 | ||
552 | void | |
553 | md_begin (void) | |
554 | { | |
ed9e98c2 | 555 | const struct s390_opcode *op; |
902cc293 | 556 | const struct s390_opcode *op_end; |
902cc293 AK |
557 | |
558 | /* Give a warning if the combination -m64-bit and -Aesa is used. */ | |
559 | if (s390_arch_size == 64 && current_cpu < S390_OPCODE_Z900) | |
560 | as_warn (_("The 64 bit file format is used without esame instructions.")); | |
561 | ||
562 | s390_cie_data_alignment = -s390_arch_size / 8; | |
563 | ||
564 | /* Set the ELF flags if desired. */ | |
565 | if (s390_flags) | |
566 | bfd_set_private_flags (stdoutput, s390_flags); | |
567 | ||
568 | /* Insert the opcode formats into a hash table. */ | |
629310ab | 569 | s390_opformat_hash = str_htab_create (); |
902cc293 AK |
570 | |
571 | op_end = s390_opformats + s390_num_opformats; | |
572 | for (op = s390_opformats; op < op_end; op++) | |
fe0e921f AM |
573 | if (str_hash_insert (s390_opformat_hash, op->name, op, 0) != NULL) |
574 | as_fatal (_("duplicate %s"), op->name); | |
902cc293 AK |
575 | |
576 | s390_setup_opcodes (); | |
a85d7ed0 NC |
577 | |
578 | record_alignment (text_section, 2); | |
579 | record_alignment (data_section, 2); | |
580 | record_alignment (bss_section, 2); | |
a85d7ed0 NC |
581 | } |
582 | ||
583 | /* Called after all assembly has been done. */ | |
584 | void | |
5a49b8ac | 585 | s390_md_end (void) |
a85d7ed0 | 586 | { |
07855bec | 587 | if (s390_arch_size == 64) |
ff0fb565 | 588 | bfd_set_arch_mach (stdoutput, bfd_arch_s390, bfd_mach_s390_64); |
07855bec | 589 | else |
ff0fb565 | 590 | bfd_set_arch_mach (stdoutput, bfd_arch_s390, bfd_mach_s390_31); |
a85d7ed0 NC |
591 | } |
592 | ||
a85d7ed0 NC |
593 | /* Insert an operand value into an instruction. */ |
594 | ||
595 | static void | |
5a49b8ac AM |
596 | s390_insert_operand (unsigned char *insn, |
597 | const struct s390_operand *operand, | |
598 | offsetT val, | |
3b4dbbbf | 599 | const char *file, |
5a49b8ac | 600 | unsigned int line) |
a85d7ed0 NC |
601 | { |
602 | addressT uval; | |
603 | int offset; | |
604 | ||
07855bec NC |
605 | if (operand->flags & (S390_OPERAND_SIGNED|S390_OPERAND_PCREL)) |
606 | { | |
607 | offsetT min, max; | |
608 | ||
609 | max = ((offsetT) 1 << (operand->bits - 1)) - 1; | |
610 | min = - ((offsetT) 1 << (operand->bits - 1)); | |
611 | /* Halve PCREL operands. */ | |
612 | if (operand->flags & S390_OPERAND_PCREL) | |
613 | val >>= 1; | |
614 | /* Check for underflow / overflow. */ | |
615 | if (val < min || val > max) | |
616 | { | |
617 | const char *err = | |
20203fb9 | 618 | _("operand out of range (%s not between %ld and %ld)"); |
07855bec NC |
619 | char buf[100]; |
620 | ||
621 | if (operand->flags & S390_OPERAND_PCREL) | |
622 | { | |
623 | val <<= 1; | |
624 | min <<= 1; | |
625 | max <<= 1; | |
626 | } | |
627 | sprint_value (buf, val); | |
628 | if (file == (char *) NULL) | |
629 | as_bad (err, buf, (int) min, (int) max); | |
630 | else | |
631 | as_bad_where (file, line, err, buf, (int) min, (int) max); | |
632 | return; | |
633 | } | |
634 | /* val is ok, now restrict it to operand->bits bits. */ | |
635 | uval = (addressT) val & ((((addressT) 1 << (operand->bits-1)) << 1) - 1); | |
933fbc29 MS |
636 | /* val is restrict, now check for special case. */ |
637 | if (operand->bits == 20 && operand->shift == 20) | |
638 | uval = (uval >> 12) | ((uval & 0xfff) << 8); | |
a85d7ed0 | 639 | } |
07855bec NC |
640 | else |
641 | { | |
642 | addressT min, max; | |
198ce79b | 643 | |
98d3f06f | 644 | max = (((addressT) 1 << (operand->bits - 1)) << 1) - 1; |
07855bec NC |
645 | min = (offsetT) 0; |
646 | uval = (addressT) val; | |
1e2e8c52 AK |
647 | |
648 | /* Vector register operands have an additional bit in the RXB | |
649 | field. */ | |
650 | if (operand->flags & S390_OPERAND_VR) | |
651 | max = (max << 1) | 1; | |
652 | ||
07855bec NC |
653 | /* Length x in an instructions has real length x+1. */ |
654 | if (operand->flags & S390_OPERAND_LENGTH) | |
655 | uval--; | |
656 | /* Check for underflow / overflow. */ | |
657 | if (uval < min || uval > max) | |
658 | { | |
07855bec NC |
659 | if (operand->flags & S390_OPERAND_LENGTH) |
660 | { | |
661 | uval++; | |
662 | min++; | |
663 | max++; | |
664 | } | |
e5976317 NC |
665 | |
666 | as_bad_value_out_of_range (_("operand"), uval, (offsetT) min, (offsetT) max, file, line); | |
667 | ||
07855bec NC |
668 | return; |
669 | } | |
a85d7ed0 | 670 | } |
a85d7ed0 | 671 | |
1e2e8c52 AK |
672 | if (operand->flags & S390_OPERAND_VR) |
673 | { | |
674 | /* Insert the extra bit into the RXB field. */ | |
675 | switch (operand->shift) | |
676 | { | |
677 | case 8: | |
678 | insn[4] |= (uval & 0x10) >> 1; | |
679 | break; | |
680 | case 12: | |
681 | insn[4] |= (uval & 0x10) >> 2; | |
682 | break; | |
683 | case 16: | |
684 | insn[4] |= (uval & 0x10) >> 3; | |
685 | break; | |
686 | case 32: | |
687 | insn[4] |= (uval & 0x10) >> 4; | |
688 | break; | |
689 | } | |
690 | uval &= 0xf; | |
691 | } | |
692 | ||
693 | if (operand->flags & S390_OPERAND_OR1) | |
694 | uval |= 1; | |
695 | if (operand->flags & S390_OPERAND_OR2) | |
696 | uval |= 2; | |
697 | if (operand->flags & S390_OPERAND_OR8) | |
698 | uval |= 8; | |
699 | ||
700 | /* Duplicate the operand at bit pos 12 to 16. */ | |
701 | if (operand->flags & S390_OPERAND_CP16) | |
702 | { | |
703 | /* Copy VR operand at bit pos 12 to bit pos 16. */ | |
704 | insn[2] |= uval << 4; | |
705 | /* Copy the flag in the RXB field. */ | |
706 | insn[4] |= (insn[4] & 4) >> 1; | |
707 | } | |
708 | ||
a85d7ed0 NC |
709 | /* Insert fragments of the operand byte for byte. */ |
710 | offset = operand->shift + operand->bits; | |
711 | uval <<= (-offset) & 7; | |
98d3f06f | 712 | insn += (offset - 1) / 8; |
07855bec NC |
713 | while (uval != 0) |
714 | { | |
715 | *insn-- |= uval; | |
716 | uval >>= 8; | |
717 | } | |
a85d7ed0 NC |
718 | } |
719 | ||
1971b29d MS |
720 | struct map_tls |
721 | { | |
f86f5863 | 722 | const char *string; |
1971b29d MS |
723 | int length; |
724 | bfd_reloc_code_real_type reloc; | |
725 | }; | |
726 | ||
1971b29d MS |
727 | /* Parse tls marker and return the desired relocation. */ |
728 | static bfd_reloc_code_real_type | |
5a49b8ac | 729 | s390_tls_suffix (char **str_p, expressionS *exp_p) |
1971b29d MS |
730 | { |
731 | static struct map_tls mapping[] = | |
732 | { | |
733 | { "tls_load", 8, BFD_RELOC_390_TLS_LOAD }, | |
734 | { "tls_gdcall", 10, BFD_RELOC_390_TLS_GDCALL }, | |
735 | { "tls_ldcall", 10, BFD_RELOC_390_TLS_LDCALL }, | |
736 | { NULL, 0, BFD_RELOC_UNUSED } | |
737 | }; | |
738 | struct map_tls *ptr; | |
739 | char *orig_line; | |
740 | char *str; | |
741 | char *ident; | |
742 | int len; | |
743 | ||
744 | str = *str_p; | |
745 | if (*str++ != ':') | |
746 | return BFD_RELOC_UNUSED; | |
747 | ||
748 | ident = str; | |
749 | while (ISIDNUM (*str)) | |
750 | str++; | |
751 | len = str - ident; | |
752 | if (*str++ != ':') | |
753 | return BFD_RELOC_UNUSED; | |
754 | ||
755 | orig_line = input_line_pointer; | |
756 | input_line_pointer = str; | |
757 | expression (exp_p); | |
758 | str = input_line_pointer; | |
759 | if (&input_line_pointer != str_p) | |
760 | input_line_pointer = orig_line; | |
761 | ||
762 | if (exp_p->X_op != O_symbol) | |
763 | return BFD_RELOC_UNUSED; | |
764 | ||
765 | for (ptr = &mapping[0]; ptr->length > 0; ptr++) | |
766 | if (len == ptr->length | |
767 | && strncasecmp (ident, ptr->string, ptr->length) == 0) | |
768 | { | |
769 | /* Found a matching tls suffix. */ | |
770 | *str_p = str; | |
771 | return ptr->reloc; | |
772 | } | |
773 | return BFD_RELOC_UNUSED; | |
774 | } | |
775 | ||
a85d7ed0 | 776 | /* Structure used to hold suffixes. */ |
07855bec NC |
777 | typedef enum |
778 | { | |
779 | ELF_SUFFIX_NONE = 0, | |
780 | ELF_SUFFIX_GOT, | |
781 | ELF_SUFFIX_PLT, | |
2a19f73f MS |
782 | ELF_SUFFIX_GOTENT, |
783 | ELF_SUFFIX_GOTOFF, | |
784 | ELF_SUFFIX_GOTPLT, | |
1971b29d MS |
785 | ELF_SUFFIX_PLTOFF, |
786 | ELF_SUFFIX_TLS_GD, | |
787 | ELF_SUFFIX_TLS_GOTIE, | |
788 | ELF_SUFFIX_TLS_IE, | |
789 | ELF_SUFFIX_TLS_LDM, | |
790 | ELF_SUFFIX_TLS_LDO, | |
791 | ELF_SUFFIX_TLS_LE | |
07855bec NC |
792 | } |
793 | elf_suffix_type; | |
794 | ||
795 | struct map_bfd | |
796 | { | |
f86f5863 | 797 | const char *string; |
07855bec NC |
798 | int length; |
799 | elf_suffix_type suffix; | |
800 | }; | |
a85d7ed0 | 801 | |
9d654c1c | 802 | |
a85d7ed0 NC |
803 | /* Parse @got/@plt/@gotoff. and return the desired relocation. */ |
804 | static elf_suffix_type | |
5a49b8ac | 805 | s390_elf_suffix (char **str_p, expressionS *exp_p) |
a85d7ed0 | 806 | { |
07855bec NC |
807 | static struct map_bfd mapping[] = |
808 | { | |
a85d7ed0 NC |
809 | { "got", 3, ELF_SUFFIX_GOT }, |
810 | { "got12", 5, ELF_SUFFIX_GOT }, | |
811 | { "plt", 3, ELF_SUFFIX_PLT }, | |
812 | { "gotent", 6, ELF_SUFFIX_GOTENT }, | |
2a19f73f MS |
813 | { "gotoff", 6, ELF_SUFFIX_GOTOFF }, |
814 | { "gotplt", 6, ELF_SUFFIX_GOTPLT }, | |
815 | { "pltoff", 6, ELF_SUFFIX_PLTOFF }, | |
1971b29d MS |
816 | { "tlsgd", 5, ELF_SUFFIX_TLS_GD }, |
817 | { "gotntpoff", 9, ELF_SUFFIX_TLS_GOTIE }, | |
818 | { "indntpoff", 9, ELF_SUFFIX_TLS_IE }, | |
819 | { "tlsldm", 6, ELF_SUFFIX_TLS_LDM }, | |
820 | { "dtpoff", 6, ELF_SUFFIX_TLS_LDO }, | |
821 | { "ntpoff", 6, ELF_SUFFIX_TLS_LE }, | |
a85d7ed0 NC |
822 | { NULL, 0, ELF_SUFFIX_NONE } |
823 | }; | |
824 | ||
825 | struct map_bfd *ptr; | |
826 | char *str = *str_p; | |
827 | char *ident; | |
828 | int len; | |
829 | ||
830 | if (*str++ != '@') | |
831 | return ELF_SUFFIX_NONE; | |
832 | ||
833 | ident = str; | |
3882b010 | 834 | while (ISALNUM (*str)) |
a85d7ed0 NC |
835 | str++; |
836 | len = str - ident; | |
837 | ||
838 | for (ptr = &mapping[0]; ptr->length > 0; ptr++) | |
16a419ba NC |
839 | if (len == ptr->length |
840 | && strncasecmp (ident, ptr->string, ptr->length) == 0) | |
07855bec NC |
841 | { |
842 | if (exp_p->X_add_number != 0) | |
843 | as_warn (_("identifier+constant@%s means identifier@%s+constant"), | |
844 | ptr->string, ptr->string); | |
845 | /* Now check for identifier@suffix+constant. */ | |
846 | if (*str == '-' || *str == '+') | |
847 | { | |
848 | char *orig_line = input_line_pointer; | |
849 | expressionS new_exp; | |
850 | ||
851 | input_line_pointer = str; | |
852 | expression (&new_exp); | |
853 | ||
854 | switch (new_exp.X_op) | |
855 | { | |
856 | case O_constant: /* X_add_number (a constant expression). */ | |
857 | exp_p->X_add_number += new_exp.X_add_number; | |
858 | str = input_line_pointer; | |
859 | break; | |
860 | case O_symbol: /* X_add_symbol + X_add_number. */ | |
861 | /* this case is used for e.g. xyz@PLT+.Label. */ | |
862 | exp_p->X_add_number += new_exp.X_add_number; | |
863 | exp_p->X_op_symbol = new_exp.X_add_symbol; | |
864 | exp_p->X_op = O_add; | |
865 | str = input_line_pointer; | |
866 | break; | |
867 | case O_uminus: /* (- X_add_symbol) + X_add_number. */ | |
868 | /* this case is used for e.g. xyz@PLT-.Label. */ | |
869 | exp_p->X_add_number += new_exp.X_add_number; | |
870 | exp_p->X_op_symbol = new_exp.X_add_symbol; | |
871 | exp_p->X_op = O_subtract; | |
872 | str = input_line_pointer; | |
873 | break; | |
874 | default: | |
875 | break; | |
876 | } | |
877 | ||
878 | /* If s390_elf_suffix has not been called with | |
879 | &input_line_pointer as first parameter, we have | |
880 | clobbered the input_line_pointer. We have to | |
881 | undo that. */ | |
882 | if (&input_line_pointer != str_p) | |
883 | input_line_pointer = orig_line; | |
a85d7ed0 | 884 | } |
07855bec NC |
885 | *str_p = str; |
886 | return ptr->suffix; | |
a85d7ed0 | 887 | } |
a85d7ed0 | 888 | |
d26cc8a9 | 889 | return ELF_SUFFIX_NONE; |
a85d7ed0 NC |
890 | } |
891 | ||
892 | /* Structure used to hold a literal pool entry. */ | |
07855bec NC |
893 | struct s390_lpe |
894 | { | |
895 | struct s390_lpe *next; | |
896 | expressionS ex; | |
897 | FLONUM_TYPE floatnum; /* used if X_op == O_big && X_add_number <= 0 */ | |
898 | LITTLENUM_TYPE bignum[4]; /* used if X_op == O_big && X_add_number > 0 */ | |
899 | int nbytes; | |
900 | bfd_reloc_code_real_type reloc; | |
901 | symbolS *sym; | |
902 | }; | |
a85d7ed0 NC |
903 | |
904 | static struct s390_lpe *lpe_free_list = NULL; | |
905 | static struct s390_lpe *lpe_list = NULL; | |
906 | static struct s390_lpe *lpe_list_tail = NULL; | |
907 | static symbolS *lp_sym = NULL; | |
908 | static int lp_count = 0; | |
909 | static int lpe_count = 0; | |
910 | ||
911 | static int | |
5a49b8ac | 912 | s390_exp_compare (expressionS *exp1, expressionS *exp2) |
a85d7ed0 NC |
913 | { |
914 | if (exp1->X_op != exp2->X_op) | |
915 | return 0; | |
916 | ||
07855bec NC |
917 | switch (exp1->X_op) |
918 | { | |
919 | case O_constant: /* X_add_number must be equal. */ | |
920 | case O_register: | |
921 | return exp1->X_add_number == exp2->X_add_number; | |
922 | ||
923 | case O_big: | |
198ce79b | 924 | as_bad (_("Can't handle O_big in s390_exp_compare")); |
2b804145 | 925 | return 0; |
07855bec NC |
926 | |
927 | case O_symbol: /* X_add_symbol & X_add_number must be equal. */ | |
928 | case O_symbol_rva: | |
929 | case O_uminus: | |
930 | case O_bit_not: | |
931 | case O_logical_not: | |
16a419ba NC |
932 | return (exp1->X_add_symbol == exp2->X_add_symbol) |
933 | && (exp1->X_add_number == exp2->X_add_number); | |
07855bec NC |
934 | |
935 | case O_multiply: /* X_add_symbol,X_op_symbol&X_add_number must be equal. */ | |
936 | case O_divide: | |
937 | case O_modulus: | |
938 | case O_left_shift: | |
939 | case O_right_shift: | |
940 | case O_bit_inclusive_or: | |
941 | case O_bit_or_not: | |
942 | case O_bit_exclusive_or: | |
943 | case O_bit_and: | |
944 | case O_add: | |
945 | case O_subtract: | |
946 | case O_eq: | |
947 | case O_ne: | |
948 | case O_lt: | |
949 | case O_le: | |
950 | case O_ge: | |
951 | case O_gt: | |
952 | case O_logical_and: | |
953 | case O_logical_or: | |
16a419ba NC |
954 | return (exp1->X_add_symbol == exp2->X_add_symbol) |
955 | && (exp1->X_op_symbol == exp2->X_op_symbol) | |
956 | && (exp1->X_add_number == exp2->X_add_number); | |
07855bec | 957 | default: |
98d3f06f KH |
958 | return 0; |
959 | } | |
a85d7ed0 NC |
960 | } |
961 | ||
33eaf5de | 962 | /* Test for @lit and if it's present make an entry in the literal pool and |
a85d7ed0 NC |
963 | modify the current expression to be an offset into the literal pool. */ |
964 | static elf_suffix_type | |
5a49b8ac | 965 | s390_lit_suffix (char **str_p, expressionS *exp_p, elf_suffix_type suffix) |
a85d7ed0 NC |
966 | { |
967 | bfd_reloc_code_real_type reloc; | |
968 | char tmp_name[64]; | |
969 | char *str = *str_p; | |
970 | char *ident; | |
971 | struct s390_lpe *lpe; | |
972 | int nbytes, len; | |
973 | ||
974 | if (*str++ != ':') | |
975 | return suffix; /* No modification. */ | |
198ce79b | 976 | |
a85d7ed0 NC |
977 | /* We look for a suffix of the form "@lit1", "@lit2", "@lit4" or "@lit8". */ |
978 | ident = str; | |
3882b010 | 979 | while (ISALNUM (*str)) |
a85d7ed0 NC |
980 | str++; |
981 | len = str - ident; | |
16a419ba NC |
982 | if (len != 4 || strncasecmp (ident, "lit", 3) != 0 |
983 | || (ident[3]!='1' && ident[3]!='2' && ident[3]!='4' && ident[3]!='8')) | |
a85d7ed0 NC |
984 | return suffix; /* no modification */ |
985 | nbytes = ident[3] - '0'; | |
986 | ||
987 | reloc = BFD_RELOC_UNUSED; | |
07855bec NC |
988 | if (suffix == ELF_SUFFIX_GOT) |
989 | { | |
990 | if (nbytes == 2) | |
991 | reloc = BFD_RELOC_390_GOT16; | |
992 | else if (nbytes == 4) | |
993 | reloc = BFD_RELOC_32_GOT_PCREL; | |
994 | else if (nbytes == 8) | |
995 | reloc = BFD_RELOC_390_GOT64; | |
996 | } | |
997 | else if (suffix == ELF_SUFFIX_PLT) | |
998 | { | |
999 | if (nbytes == 4) | |
1000 | reloc = BFD_RELOC_390_PLT32; | |
1001 | else if (nbytes == 8) | |
1002 | reloc = BFD_RELOC_390_PLT64; | |
1003 | } | |
a85d7ed0 | 1004 | |
07855bec | 1005 | if (suffix != ELF_SUFFIX_NONE && reloc == BFD_RELOC_UNUSED) |
a85d7ed0 | 1006 | as_bad (_("Invalid suffix for literal pool entry")); |
a85d7ed0 NC |
1007 | |
1008 | /* Search the pool if the new entry is a duplicate. */ | |
07855bec NC |
1009 | if (exp_p->X_op == O_big) |
1010 | { | |
1011 | /* Special processing for big numbers. */ | |
1012 | for (lpe = lpe_list; lpe != NULL; lpe = lpe->next) | |
1013 | { | |
1014 | if (lpe->ex.X_op == O_big) | |
1015 | { | |
1016 | if (exp_p->X_add_number <= 0 && lpe->ex.X_add_number <= 0) | |
1017 | { | |
1018 | if (memcmp (&generic_floating_point_number, &lpe->floatnum, | |
1019 | sizeof (FLONUM_TYPE)) == 0) | |
1020 | break; | |
1021 | } | |
1022 | else if (exp_p->X_add_number == lpe->ex.X_add_number) | |
1023 | { | |
1024 | if (memcmp (generic_bignum, lpe->bignum, | |
1025 | sizeof (LITTLENUM_TYPE)*exp_p->X_add_number) == 0) | |
1026 | break; | |
1027 | } | |
1028 | } | |
1029 | } | |
a85d7ed0 | 1030 | } |
07855bec NC |
1031 | else |
1032 | { | |
1033 | /* Processing for 'normal' data types. */ | |
1034 | for (lpe = lpe_list; lpe != NULL; lpe = lpe->next) | |
16a419ba | 1035 | if (lpe->nbytes == nbytes && lpe->reloc == reloc |
98d3f06f | 1036 | && s390_exp_compare (exp_p, &lpe->ex) != 0) |
07855bec | 1037 | break; |
a85d7ed0 | 1038 | } |
07855bec NC |
1039 | |
1040 | if (lpe == NULL) | |
1041 | { | |
1042 | /* A new literal. */ | |
1043 | if (lpe_free_list != NULL) | |
1044 | { | |
1045 | lpe = lpe_free_list; | |
1046 | lpe_free_list = lpe_free_list->next; | |
1047 | } | |
a85d7ed0 | 1048 | else |
07855bec | 1049 | { |
325801bd | 1050 | lpe = XNEW (struct s390_lpe); |
07855bec NC |
1051 | } |
1052 | ||
1053 | lpe->ex = *exp_p; | |
1054 | ||
1055 | if (exp_p->X_op == O_big) | |
1056 | { | |
1057 | if (exp_p->X_add_number <= 0) | |
1058 | lpe->floatnum = generic_floating_point_number; | |
1059 | else if (exp_p->X_add_number <= 4) | |
1060 | memcpy (lpe->bignum, generic_bignum, | |
98d3f06f | 1061 | exp_p->X_add_number * sizeof (LITTLENUM_TYPE)); |
07855bec NC |
1062 | else |
1063 | as_bad (_("Big number is too big")); | |
1064 | } | |
1065 | ||
1066 | lpe->nbytes = nbytes; | |
1067 | lpe->reloc = reloc; | |
1068 | /* Literal pool name defined ? */ | |
1069 | if (lp_sym == NULL) | |
1070 | { | |
07726851 | 1071 | sprintf (tmp_name, ".L\001%i", lp_count); |
98d3f06f | 1072 | lp_sym = symbol_make (tmp_name); |
07855bec | 1073 | } |
a85d7ed0 | 1074 | |
07855bec | 1075 | /* Make name for literal pool entry. */ |
07726851 | 1076 | sprintf (tmp_name, ".L\001%i\002%i", lp_count, lpe_count); |
07855bec | 1077 | lpe_count++; |
98d3f06f | 1078 | lpe->sym = symbol_make (tmp_name); |
07855bec NC |
1079 | |
1080 | /* Add to literal pool list. */ | |
1081 | lpe->next = NULL; | |
1082 | if (lpe_list_tail != NULL) | |
1083 | { | |
1084 | lpe_list_tail->next = lpe; | |
1085 | lpe_list_tail = lpe; | |
1086 | } | |
1087 | else | |
1088 | lpe_list = lpe_list_tail = lpe; | |
1089 | } | |
198ce79b | 1090 | |
a85d7ed0 | 1091 | /* Now change exp_p to the offset into the literal pool. |
33eaf5de | 1092 | That's the expression: .L^Ax^By-.L^Ax */ |
a85d7ed0 NC |
1093 | exp_p->X_add_symbol = lpe->sym; |
1094 | exp_p->X_op_symbol = lp_sym; | |
1095 | exp_p->X_op = O_subtract; | |
1096 | exp_p->X_add_number = 0; | |
1097 | ||
1098 | *str_p = str; | |
1099 | ||
1100 | /* We change the suffix type to ELF_SUFFIX_NONE, because | |
1101 | the difference of two local labels is just a number. */ | |
1102 | return ELF_SUFFIX_NONE; | |
1103 | } | |
1104 | ||
1105 | /* Like normal .long/.short/.word, except support @got, etc. | |
1106 | clobbers input_line_pointer, checks end-of-line. */ | |
1107 | static void | |
5a49b8ac | 1108 | s390_elf_cons (int nbytes /* 1=.byte, 2=.word, 4=.long */) |
a85d7ed0 NC |
1109 | { |
1110 | expressionS exp; | |
1111 | elf_suffix_type suffix; | |
1112 | ||
07855bec NC |
1113 | if (is_it_end_of_statement ()) |
1114 | { | |
1115 | demand_empty_rest_of_line (); | |
1116 | return; | |
1117 | } | |
a85d7ed0 | 1118 | |
07855bec NC |
1119 | do |
1120 | { | |
1121 | expression (&exp); | |
1122 | ||
1123 | if (exp.X_op == O_symbol | |
1124 | && *input_line_pointer == '@' | |
1125 | && (suffix = s390_elf_suffix (&input_line_pointer, &exp)) != ELF_SUFFIX_NONE) | |
1126 | { | |
1127 | bfd_reloc_code_real_type reloc; | |
1128 | reloc_howto_type *reloc_howto; | |
1129 | int size; | |
1130 | char *where; | |
1131 | ||
1971b29d MS |
1132 | if (nbytes == 2) |
1133 | { | |
1134 | static bfd_reloc_code_real_type tab2[] = | |
1135 | { | |
5cfbfc2b MS |
1136 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_NONE */ |
1137 | BFD_RELOC_390_GOT16, /* ELF_SUFFIX_GOT */ | |
1138 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_PLT */ | |
1139 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTENT */ | |
1140 | BFD_RELOC_16_GOTOFF, /* ELF_SUFFIX_GOTOFF */ | |
1141 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTPLT */ | |
1142 | BFD_RELOC_390_PLTOFF16, /* ELF_SUFFIX_PLTOFF */ | |
1143 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_GD */ | |
1144 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_GOTIE */ | |
1145 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_IE */ | |
1146 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_LDM */ | |
1147 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_TLS_LDO */ | |
1148 | BFD_RELOC_UNUSED /* ELF_SUFFIX_TLS_LE */ | |
1971b29d MS |
1149 | }; |
1150 | reloc = tab2[suffix]; | |
1151 | } | |
1152 | else if (nbytes == 4) | |
1153 | { | |
1154 | static bfd_reloc_code_real_type tab4[] = | |
1155 | { | |
5cfbfc2b MS |
1156 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_NONE */ |
1157 | BFD_RELOC_32_GOT_PCREL, /* ELF_SUFFIX_GOT */ | |
1158 | BFD_RELOC_390_PLT32, /* ELF_SUFFIX_PLT */ | |
1159 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTENT */ | |
1160 | BFD_RELOC_32_GOTOFF, /* ELF_SUFFIX_GOTOFF */ | |
1161 | BFD_RELOC_390_GOTPLT32, /* ELF_SUFFIX_GOTPLT */ | |
1162 | BFD_RELOC_390_PLTOFF32, /* ELF_SUFFIX_PLTOFF */ | |
1163 | BFD_RELOC_390_TLS_GD32, /* ELF_SUFFIX_TLS_GD */ | |
1164 | BFD_RELOC_390_TLS_GOTIE32, /* ELF_SUFFIX_TLS_GOTIE */ | |
1165 | BFD_RELOC_390_TLS_IE32, /* ELF_SUFFIX_TLS_IE */ | |
1166 | BFD_RELOC_390_TLS_LDM32, /* ELF_SUFFIX_TLS_LDM */ | |
1167 | BFD_RELOC_390_TLS_LDO32, /* ELF_SUFFIX_TLS_LDO */ | |
1168 | BFD_RELOC_390_TLS_LE32 /* ELF_SUFFIX_TLS_LE */ | |
1971b29d MS |
1169 | }; |
1170 | reloc = tab4[suffix]; | |
1171 | } | |
1172 | else if (nbytes == 8) | |
1173 | { | |
1174 | static bfd_reloc_code_real_type tab8[] = | |
1175 | { | |
5cfbfc2b MS |
1176 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_NONE */ |
1177 | BFD_RELOC_390_GOT64, /* ELF_SUFFIX_GOT */ | |
1178 | BFD_RELOC_390_PLT64, /* ELF_SUFFIX_PLT */ | |
1179 | BFD_RELOC_UNUSED, /* ELF_SUFFIX_GOTENT */ | |
1180 | BFD_RELOC_390_GOTOFF64, /* ELF_SUFFIX_GOTOFF */ | |
1181 | BFD_RELOC_390_GOTPLT64, /* ELF_SUFFIX_GOTPLT */ | |
1182 | BFD_RELOC_390_PLTOFF64, /* ELF_SUFFIX_PLTOFF */ | |
1183 | BFD_RELOC_390_TLS_GD64, /* ELF_SUFFIX_TLS_GD */ | |
1184 | BFD_RELOC_390_TLS_GOTIE64, /* ELF_SUFFIX_TLS_GOTIE */ | |
1185 | BFD_RELOC_390_TLS_IE64, /* ELF_SUFFIX_TLS_IE */ | |
1186 | BFD_RELOC_390_TLS_LDM64, /* ELF_SUFFIX_TLS_LDM */ | |
1187 | BFD_RELOC_390_TLS_LDO64, /* ELF_SUFFIX_TLS_LDO */ | |
1188 | BFD_RELOC_390_TLS_LE64 /* ELF_SUFFIX_TLS_LE */ | |
1971b29d MS |
1189 | }; |
1190 | reloc = tab8[suffix]; | |
1191 | } | |
07855bec NC |
1192 | else |
1193 | reloc = BFD_RELOC_UNUSED; | |
1194 | ||
1971b29d MS |
1195 | if (reloc != BFD_RELOC_UNUSED |
1196 | && (reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc))) | |
07855bec | 1197 | { |
07855bec NC |
1198 | size = bfd_get_reloc_size (reloc_howto); |
1199 | if (size > nbytes) | |
992a06ee AM |
1200 | as_bad (ngettext ("%s relocations do not fit in %d byte", |
1201 | "%s relocations do not fit in %d bytes", | |
1202 | nbytes), | |
07855bec | 1203 | reloc_howto->name, nbytes); |
07726851 | 1204 | where = frag_more (nbytes); |
07855bec | 1205 | md_number_to_chars (where, 0, size); |
198ce79b | 1206 | /* To make fixup_segment do the pc relative conversion the |
b34976b6 | 1207 | pcrel parameter on the fix_new_exp call needs to be FALSE. */ |
198ce79b | 1208 | fix_new_exp (frag_now, where - frag_now->fr_literal, |
b34976b6 | 1209 | size, &exp, FALSE, reloc); |
07855bec NC |
1210 | } |
1211 | else | |
1212 | as_bad (_("relocation not applicable")); | |
1213 | } | |
a85d7ed0 | 1214 | else |
07855bec NC |
1215 | emit_expr (&exp, (unsigned int) nbytes); |
1216 | } | |
1217 | while (*input_line_pointer++ == ','); | |
a85d7ed0 | 1218 | |
98d3f06f | 1219 | input_line_pointer--; /* Put terminator back into stream. */ |
a85d7ed0 NC |
1220 | demand_empty_rest_of_line (); |
1221 | } | |
1222 | ||
13daa8e4 AK |
1223 | /* Return true if all remaining operands in the opcode with |
1224 | OPCODE_FLAGS can be skipped. */ | |
1225 | static bfd_boolean | |
1226 | skip_optargs_p (unsigned int opcode_flags, const unsigned char *opindex_ptr) | |
1227 | { | |
1228 | if ((opcode_flags & (S390_INSTR_FLAG_OPTPARM | S390_INSTR_FLAG_OPTPARM2)) | |
1229 | && opindex_ptr[0] != '\0' | |
1230 | && opindex_ptr[1] == '\0') | |
1231 | return TRUE; | |
1232 | ||
1233 | if ((opcode_flags & S390_INSTR_FLAG_OPTPARM2) | |
1234 | && opindex_ptr[0] != '\0' | |
1235 | && opindex_ptr[1] != '\0' | |
1236 | && opindex_ptr[2] == '\0') | |
1237 | return TRUE; | |
1238 | return FALSE; | |
1239 | } | |
1240 | ||
a85d7ed0 NC |
1241 | /* We need to keep a list of fixups. We can't simply generate them as |
1242 | we go, because that would require us to first create the frag, and | |
1243 | that would screw up references to ``.''. */ | |
1244 | ||
1245 | struct s390_fixup | |
07855bec NC |
1246 | { |
1247 | expressionS exp; | |
1248 | int opindex; | |
1249 | bfd_reloc_code_real_type reloc; | |
1250 | }; | |
a85d7ed0 NC |
1251 | |
1252 | #define MAX_INSN_FIXUPS (4) | |
1253 | ||
1254 | /* This routine is called for each instruction to be assembled. */ | |
1255 | ||
9d654c1c | 1256 | static char * |
5a49b8ac AM |
1257 | md_gather_operands (char *str, |
1258 | unsigned char *insn, | |
1259 | const struct s390_opcode *opcode) | |
a85d7ed0 NC |
1260 | { |
1261 | struct s390_fixup fixups[MAX_INSN_FIXUPS]; | |
1262 | const struct s390_operand *operand; | |
1263 | const unsigned char *opindex_ptr; | |
1971b29d | 1264 | expressionS ex; |
a85d7ed0 NC |
1265 | elf_suffix_type suffix; |
1266 | bfd_reloc_code_real_type reloc; | |
1267 | int skip_optional; | |
a85d7ed0 NC |
1268 | char *f; |
1269 | int fc, i; | |
1270 | ||
98d3f06f KH |
1271 | while (ISSPACE (*str)) |
1272 | str++; | |
a85d7ed0 | 1273 | |
a85d7ed0 NC |
1274 | skip_optional = 0; |
1275 | ||
1276 | /* Gather the operands. */ | |
1277 | fc = 0; | |
07855bec NC |
1278 | for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++) |
1279 | { | |
07855bec NC |
1280 | char *hold; |
1281 | ||
1282 | operand = s390_operands + *opindex_ptr; | |
198ce79b | 1283 | |
a09f2586 AK |
1284 | if ((opcode->flags & (S390_INSTR_FLAG_OPTPARM | S390_INSTR_FLAG_OPTPARM2)) |
1285 | && *str == '\0') | |
1e2e8c52 AK |
1286 | { |
1287 | /* Optional parameters might need to be ORed with a | |
1288 | value so calling s390_insert_operand is needed. */ | |
1289 | s390_insert_operand (insn, operand, 0, NULL, 0); | |
1290 | break; | |
1291 | } | |
1292 | ||
07855bec NC |
1293 | if (skip_optional && (operand->flags & S390_OPERAND_INDEX)) |
1294 | { | |
1295 | /* We do an early skip. For D(X,B) constructions the index | |
198ce79b | 1296 | register is skipped (X is optional). For D(L,B) the base |
07855bec NC |
1297 | register will be the skipped operand, because L is NOT |
1298 | optional. */ | |
1299 | skip_optional = 0; | |
1300 | continue; | |
1301 | } | |
198ce79b | 1302 | |
07855bec NC |
1303 | /* Gather the operand. */ |
1304 | hold = input_line_pointer; | |
1305 | input_line_pointer = str; | |
1306 | ||
98d3f06f KH |
1307 | /* Parse the operand. */ |
1308 | if (! register_name (&ex)) | |
07855bec | 1309 | expression (&ex); |
198ce79b | 1310 | |
07855bec NC |
1311 | str = input_line_pointer; |
1312 | input_line_pointer = hold; | |
198ce79b | 1313 | |
07855bec NC |
1314 | /* Write the operand to the insn. */ |
1315 | if (ex.X_op == O_illegal) | |
1316 | as_bad (_("illegal operand")); | |
1317 | else if (ex.X_op == O_absent) | |
5e7c27a6 | 1318 | { |
5e7c27a6 MS |
1319 | if (opindex_ptr[0] == '\0') |
1320 | break; | |
1321 | as_bad (_("missing operand")); | |
1322 | } | |
07855bec NC |
1323 | else if (ex.X_op == O_register || ex.X_op == O_constant) |
1324 | { | |
1325 | s390_lit_suffix (&str, &ex, ELF_SUFFIX_NONE); | |
1326 | ||
1327 | if (ex.X_op != O_register && ex.X_op != O_constant) | |
1328 | { | |
1329 | /* We need to generate a fixup for the | |
1330 | expression returned by s390_lit_suffix. */ | |
1331 | if (fc >= MAX_INSN_FIXUPS) | |
1332 | as_fatal (_("too many fixups")); | |
1333 | fixups[fc].exp = ex; | |
1334 | fixups[fc].opindex = *opindex_ptr; | |
1335 | fixups[fc].reloc = BFD_RELOC_UNUSED; | |
1336 | ++fc; | |
1337 | } | |
1338 | else | |
1339 | { | |
c6837265 AK |
1340 | if ((operand->flags & S390_OPERAND_LENGTH) |
1341 | && ex.X_op != O_constant) | |
1342 | as_fatal (_("invalid length field specified")); | |
16a419ba NC |
1343 | if ((operand->flags & S390_OPERAND_INDEX) |
1344 | && ex.X_add_number == 0 | |
b34976b6 | 1345 | && warn_areg_zero) |
20203fb9 | 1346 | as_warn (_("index register specified but zero")); |
16a419ba NC |
1347 | if ((operand->flags & S390_OPERAND_BASE) |
1348 | && ex.X_add_number == 0 | |
b34976b6 | 1349 | && warn_areg_zero) |
20203fb9 | 1350 | as_warn (_("base register specified but zero")); |
c8fa16ed AK |
1351 | if ((operand->flags & S390_OPERAND_GPR) |
1352 | && (operand->flags & S390_OPERAND_REG_PAIR) | |
5e4b319c | 1353 | && (ex.X_add_number & 1)) |
c8fa16ed AK |
1354 | as_fatal (_("odd numbered general purpose register specified as " |
1355 | "register pair")); | |
1356 | if ((operand->flags & S390_OPERAND_FPR) | |
1357 | && (operand->flags & S390_OPERAND_REG_PAIR) | |
1358 | && ex.X_add_number != 0 && ex.X_add_number != 1 | |
1359 | && ex.X_add_number != 4 && ex.X_add_number != 5 | |
1360 | && ex.X_add_number != 8 && ex.X_add_number != 9 | |
1361 | && ex.X_add_number != 12 && ex.X_add_number != 13) | |
1362 | as_fatal (_("invalid floating point register pair. Valid fp " | |
1363 | "register pair operands are 0, 1, 4, 5, 8, 9, " | |
1364 | "12 or 13.")); | |
07855bec NC |
1365 | s390_insert_operand (insn, operand, ex.X_add_number, NULL, 0); |
1366 | } | |
1367 | } | |
1368 | else | |
1369 | { | |
1370 | suffix = s390_elf_suffix (&str, &ex); | |
1371 | suffix = s390_lit_suffix (&str, &ex, suffix); | |
1372 | reloc = BFD_RELOC_UNUSED; | |
1373 | ||
1374 | if (suffix == ELF_SUFFIX_GOT) | |
1375 | { | |
933fbc29 MS |
1376 | if ((operand->flags & S390_OPERAND_DISP) && |
1377 | (operand->bits == 12)) | |
07855bec | 1378 | reloc = BFD_RELOC_390_GOT12; |
933fbc29 MS |
1379 | else if ((operand->flags & S390_OPERAND_DISP) && |
1380 | (operand->bits == 20)) | |
1381 | reloc = BFD_RELOC_390_GOT20; | |
16a419ba NC |
1382 | else if ((operand->flags & S390_OPERAND_SIGNED) |
1383 | && (operand->bits == 16)) | |
07855bec | 1384 | reloc = BFD_RELOC_390_GOT16; |
16a419ba NC |
1385 | else if ((operand->flags & S390_OPERAND_PCREL) |
1386 | && (operand->bits == 32)) | |
07855bec NC |
1387 | reloc = BFD_RELOC_390_GOTENT; |
1388 | } | |
1389 | else if (suffix == ELF_SUFFIX_PLT) | |
1390 | { | |
16a419ba | 1391 | if ((operand->flags & S390_OPERAND_PCREL) |
fb798c50 AK |
1392 | && (operand->bits == 12)) |
1393 | reloc = BFD_RELOC_390_PLT12DBL; | |
1394 | else if ((operand->flags & S390_OPERAND_PCREL) | |
1395 | && (operand->bits == 16)) | |
07855bec | 1396 | reloc = BFD_RELOC_390_PLT16DBL; |
fb798c50 AK |
1397 | else if ((operand->flags & S390_OPERAND_PCREL) |
1398 | && (operand->bits == 24)) | |
1399 | reloc = BFD_RELOC_390_PLT24DBL; | |
16a419ba NC |
1400 | else if ((operand->flags & S390_OPERAND_PCREL) |
1401 | && (operand->bits == 32)) | |
07855bec NC |
1402 | reloc = BFD_RELOC_390_PLT32DBL; |
1403 | } | |
1404 | else if (suffix == ELF_SUFFIX_GOTENT) | |
1405 | { | |
16a419ba NC |
1406 | if ((operand->flags & S390_OPERAND_PCREL) |
1407 | && (operand->bits == 32)) | |
07855bec NC |
1408 | reloc = BFD_RELOC_390_GOTENT; |
1409 | } | |
2a19f73f MS |
1410 | else if (suffix == ELF_SUFFIX_GOTOFF) |
1411 | { | |
1412 | if ((operand->flags & S390_OPERAND_SIGNED) | |
1413 | && (operand->bits == 16)) | |
1414 | reloc = BFD_RELOC_16_GOTOFF; | |
1415 | } | |
1416 | else if (suffix == ELF_SUFFIX_PLTOFF) | |
1417 | { | |
1418 | if ((operand->flags & S390_OPERAND_SIGNED) | |
1419 | && (operand->bits == 16)) | |
1420 | reloc = BFD_RELOC_390_PLTOFF16; | |
1421 | } | |
1422 | else if (suffix == ELF_SUFFIX_GOTPLT) | |
1423 | { | |
1424 | if ((operand->flags & S390_OPERAND_DISP) | |
1425 | && (operand->bits == 12)) | |
1426 | reloc = BFD_RELOC_390_GOTPLT12; | |
1427 | else if ((operand->flags & S390_OPERAND_SIGNED) | |
1428 | && (operand->bits == 16)) | |
1429 | reloc = BFD_RELOC_390_GOTPLT16; | |
1430 | else if ((operand->flags & S390_OPERAND_PCREL) | |
1431 | && (operand->bits == 32)) | |
1432 | reloc = BFD_RELOC_390_GOTPLTENT; | |
1433 | } | |
1971b29d MS |
1434 | else if (suffix == ELF_SUFFIX_TLS_GOTIE) |
1435 | { | |
1436 | if ((operand->flags & S390_OPERAND_DISP) | |
1437 | && (operand->bits == 12)) | |
1438 | reloc = BFD_RELOC_390_TLS_GOTIE12; | |
933fbc29 MS |
1439 | else if ((operand->flags & S390_OPERAND_DISP) |
1440 | && (operand->bits == 20)) | |
1441 | reloc = BFD_RELOC_390_TLS_GOTIE20; | |
1971b29d MS |
1442 | } |
1443 | else if (suffix == ELF_SUFFIX_TLS_IE) | |
1444 | { | |
1445 | if ((operand->flags & S390_OPERAND_PCREL) | |
1446 | && (operand->bits == 32)) | |
1447 | reloc = BFD_RELOC_390_TLS_IEENT; | |
1448 | } | |
07855bec NC |
1449 | |
1450 | if (suffix != ELF_SUFFIX_NONE && reloc == BFD_RELOC_UNUSED) | |
1451 | as_bad (_("invalid operand suffix")); | |
1452 | /* We need to generate a fixup of type 'reloc' for this | |
1453 | expression. */ | |
a85d7ed0 NC |
1454 | if (fc >= MAX_INSN_FIXUPS) |
1455 | as_fatal (_("too many fixups")); | |
1456 | fixups[fc].exp = ex; | |
1457 | fixups[fc].opindex = *opindex_ptr; | |
07855bec | 1458 | fixups[fc].reloc = reloc; |
a85d7ed0 | 1459 | ++fc; |
07855bec | 1460 | } |
198ce79b | 1461 | |
07855bec NC |
1462 | /* Check the next character. The call to expression has advanced |
1463 | str past any whitespace. */ | |
1464 | if (operand->flags & S390_OPERAND_DISP) | |
1465 | { | |
1466 | /* After a displacement a block in parentheses can start. */ | |
1467 | if (*str != '(') | |
1468 | { | |
67c1ffbe | 1469 | /* Check if parenthesized block can be skipped. If the next |
33eaf5de | 1470 | operand is neither an optional operand nor a base register |
07855bec NC |
1471 | then we have a syntax error. */ |
1472 | operand = s390_operands + *(++opindex_ptr); | |
1473 | if (!(operand->flags & (S390_OPERAND_INDEX|S390_OPERAND_BASE))) | |
1474 | as_bad (_("syntax error; missing '(' after displacement")); | |
1475 | ||
1476 | /* Ok, skip all operands until S390_OPERAND_BASE. */ | |
1477 | while (!(operand->flags & S390_OPERAND_BASE)) | |
1478 | operand = s390_operands + *(++opindex_ptr); | |
198ce79b | 1479 | |
13daa8e4 AK |
1480 | if (*str == '\0' && skip_optargs_p (opcode->flags, &opindex_ptr[1])) |
1481 | continue; | |
1482 | ||
67c1ffbe | 1483 | /* If there is a next operand it must be separated by a comma. */ |
07855bec NC |
1484 | if (opindex_ptr[1] != '\0') |
1485 | { | |
6c639ef9 MS |
1486 | if (*str != ',') |
1487 | { | |
1488 | while (opindex_ptr[1] != '\0') | |
1489 | { | |
1490 | operand = s390_operands + *(++opindex_ptr); | |
33eaf5de | 1491 | as_bad (_("syntax error; expected ','")); |
6c639ef9 MS |
1492 | break; |
1493 | } | |
1494 | } | |
1495 | else | |
1496 | str++; | |
07855bec NC |
1497 | } |
1498 | } | |
1499 | else | |
1500 | { | |
1501 | /* We found an opening parentheses. */ | |
1502 | str++; | |
1503 | for (f = str; *f != '\0'; f++) | |
1504 | if (*f == ',' || *f == ')') | |
1505 | break; | |
1506 | /* If there is no comma until the closing parentheses OR | |
1507 | there is a comma right after the opening parentheses, | |
1508 | we have to skip optional operands. */ | |
1509 | if (*f == ',' && f == str) | |
1510 | { | |
1511 | /* comma directly after '(' ? */ | |
1512 | skip_optional = 1; | |
1513 | str++; | |
1514 | } | |
1515 | else | |
1516 | skip_optional = (*f != ','); | |
1517 | } | |
1518 | } | |
1519 | else if (operand->flags & S390_OPERAND_BASE) | |
1520 | { | |
33eaf5de | 1521 | /* After the base register the parenthesised block ends. */ |
07855bec NC |
1522 | if (*str++ != ')') |
1523 | as_bad (_("syntax error; missing ')' after base register")); | |
1524 | skip_optional = 0; | |
f47998d6 | 1525 | |
13daa8e4 | 1526 | if (*str == '\0' && skip_optargs_p (opcode->flags, &opindex_ptr[1])) |
f47998d6 AK |
1527 | continue; |
1528 | ||
67c1ffbe | 1529 | /* If there is a next operand it must be separated by a comma. */ |
07855bec NC |
1530 | if (opindex_ptr[1] != '\0') |
1531 | { | |
6c639ef9 MS |
1532 | if (*str != ',') |
1533 | { | |
1534 | while (opindex_ptr[1] != '\0') | |
1535 | { | |
1536 | operand = s390_operands + *(++opindex_ptr); | |
33eaf5de | 1537 | as_bad (_("syntax error; expected ','")); |
6c639ef9 MS |
1538 | break; |
1539 | } | |
1540 | } | |
1541 | else | |
1542 | str++; | |
07855bec NC |
1543 | } |
1544 | } | |
1545 | else | |
1546 | { | |
1547 | /* We can find an 'early' closing parentheses in e.g. D(L) instead | |
1548 | of D(L,B). In this case the base register has to be skipped. */ | |
1549 | if (*str == ')') | |
1550 | { | |
1551 | operand = s390_operands + *(++opindex_ptr); | |
1552 | ||
1553 | if (!(operand->flags & S390_OPERAND_BASE)) | |
1554 | as_bad (_("syntax error; ')' not allowed here")); | |
1555 | str++; | |
1556 | } | |
1e2e8c52 | 1557 | |
13daa8e4 | 1558 | if (*str == '\0' && skip_optargs_p (opcode->flags, &opindex_ptr[1])) |
1e2e8c52 AK |
1559 | continue; |
1560 | ||
67c1ffbe | 1561 | /* If there is a next operand it must be separated by a comma. */ |
07855bec NC |
1562 | if (opindex_ptr[1] != '\0') |
1563 | { | |
6c639ef9 MS |
1564 | if (*str != ',') |
1565 | { | |
1566 | while (opindex_ptr[1] != '\0') | |
1567 | { | |
1568 | operand = s390_operands + *(++opindex_ptr); | |
33eaf5de | 1569 | as_bad (_("syntax error; expected ','")); |
6c639ef9 MS |
1570 | break; |
1571 | } | |
1572 | } | |
1573 | else | |
1574 | str++; | |
07855bec | 1575 | } |
a85d7ed0 | 1576 | } |
a85d7ed0 | 1577 | } |
a85d7ed0 | 1578 | |
3882b010 | 1579 | while (ISSPACE (*str)) |
a85d7ed0 NC |
1580 | ++str; |
1581 | ||
1971b29d MS |
1582 | /* Check for tls instruction marker. */ |
1583 | reloc = s390_tls_suffix (&str, &ex); | |
1584 | if (reloc != BFD_RELOC_UNUSED) | |
1585 | { | |
1586 | /* We need to generate a fixup of type 'reloc' for this | |
1587 | instruction. */ | |
1588 | if (fc >= MAX_INSN_FIXUPS) | |
1589 | as_fatal (_("too many fixups")); | |
1590 | fixups[fc].exp = ex; | |
1591 | fixups[fc].opindex = -1; | |
1592 | fixups[fc].reloc = reloc; | |
1593 | ++fc; | |
1594 | } | |
1595 | ||
07855bec NC |
1596 | if (*str != '\0') |
1597 | { | |
1598 | char *linefeed; | |
a85d7ed0 | 1599 | |
07726851 | 1600 | if ((linefeed = strchr (str, '\n')) != NULL) |
07855bec NC |
1601 | *linefeed = '\0'; |
1602 | as_bad (_("junk at end of line: `%s'"), str); | |
1603 | if (linefeed != NULL) | |
1604 | *linefeed = '\n'; | |
1605 | } | |
a85d7ed0 NC |
1606 | |
1607 | /* Write out the instruction. */ | |
1608 | f = frag_more (opcode->oplen); | |
07855bec | 1609 | memcpy (f, insn, opcode->oplen); |
8f5b2891 | 1610 | dwarf2_emit_insn (opcode->oplen); |
a85d7ed0 NC |
1611 | |
1612 | /* Create any fixups. At this point we do not use a | |
1613 | bfd_reloc_code_real_type, but instead just use the | |
1614 | BFD_RELOC_UNUSED plus the operand index. This lets us easily | |
1615 | handle fixups for any operand type, although that is admittedly | |
1616 | not a very exciting feature. We pick a BFD reloc type in | |
55cf6793 | 1617 | md_apply_fix. */ |
07855bec NC |
1618 | for (i = 0; i < fc; i++) |
1619 | { | |
1971b29d MS |
1620 | |
1621 | if (fixups[i].opindex < 0) | |
1622 | { | |
1623 | /* Create tls instruction marker relocation. */ | |
1624 | fix_new_exp (frag_now, f - frag_now->fr_literal, opcode->oplen, | |
1625 | &fixups[i].exp, 0, fixups[i].reloc); | |
1626 | continue; | |
1627 | } | |
1628 | ||
07855bec | 1629 | operand = s390_operands + fixups[i].opindex; |
a85d7ed0 | 1630 | |
07855bec NC |
1631 | if (fixups[i].reloc != BFD_RELOC_UNUSED) |
1632 | { | |
1633 | reloc_howto_type *reloc_howto; | |
1634 | fixS *fixP; | |
1635 | int size; | |
198ce79b | 1636 | |
07855bec NC |
1637 | reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc); |
1638 | if (!reloc_howto) | |
1639 | abort (); | |
198ce79b | 1640 | |
fb798c50 | 1641 | size = ((reloc_howto->bitsize - 1) / 8) + 1; |
07855bec NC |
1642 | |
1643 | if (size < 1 || size > 4) | |
1644 | abort (); | |
198ce79b AJ |
1645 | |
1646 | fixP = fix_new_exp (frag_now, | |
1647 | f - frag_now->fr_literal + (operand->shift/8), | |
07855bec NC |
1648 | size, &fixups[i].exp, reloc_howto->pc_relative, |
1649 | fixups[i].reloc); | |
1650 | /* Turn off overflow checking in fixup_segment. This is necessary | |
1651 | because fixup_segment will signal an overflow for large 4 byte | |
1652 | quantities for GOT12 relocations. */ | |
16a419ba | 1653 | if ( fixups[i].reloc == BFD_RELOC_390_GOT12 |
933fbc29 | 1654 | || fixups[i].reloc == BFD_RELOC_390_GOT20 |
16a419ba | 1655 | || fixups[i].reloc == BFD_RELOC_390_GOT16) |
07855bec | 1656 | fixP->fx_no_overflow = 1; |
feb4bea7 AK |
1657 | |
1658 | if (operand->flags & S390_OPERAND_PCREL) | |
1659 | fixP->fx_pcrel_adjust = operand->shift / 8; | |
07855bec NC |
1660 | } |
1661 | else | |
1662 | fix_new_exp (frag_now, f - frag_now->fr_literal, 4, &fixups[i].exp, | |
1663 | (operand->flags & S390_OPERAND_PCREL) != 0, | |
1664 | ((bfd_reloc_code_real_type) | |
1665 | (fixups[i].opindex + (int) BFD_RELOC_UNUSED))); | |
1666 | } | |
a85d7ed0 NC |
1667 | return str; |
1668 | } | |
1669 | ||
1670 | /* This routine is called for each instruction to be assembled. */ | |
1671 | ||
1672 | void | |
5a49b8ac | 1673 | md_assemble (char *str) |
a85d7ed0 NC |
1674 | { |
1675 | const struct s390_opcode *opcode; | |
1676 | unsigned char insn[6]; | |
1677 | char *s; | |
1678 | ||
1679 | /* Get the opcode. */ | |
3882b010 | 1680 | for (s = str; *s != '\0' && ! ISSPACE (*s); s++) |
a85d7ed0 NC |
1681 | ; |
1682 | if (*s != '\0') | |
1683 | *s++ = '\0'; | |
1684 | ||
1685 | /* Look up the opcode in the hash table. */ | |
629310ab | 1686 | opcode = (struct s390_opcode *) str_hash_find (s390_opcode_hash, str); |
07855bec NC |
1687 | if (opcode == (const struct s390_opcode *) NULL) |
1688 | { | |
1689 | as_bad (_("Unrecognized opcode: `%s'"), str); | |
1690 | return; | |
1691 | } | |
37a58793 MS |
1692 | else if (!(opcode->modes & current_mode_mask)) |
1693 | { | |
20203fb9 | 1694 | as_bad (_("Opcode %s not available in this mode"), str); |
37a58793 MS |
1695 | return; |
1696 | } | |
07726851 | 1697 | memcpy (insn, opcode->opcode, sizeof (insn)); |
07855bec | 1698 | md_gather_operands (s, insn, opcode); |
a85d7ed0 NC |
1699 | } |
1700 | ||
1701 | #ifndef WORKING_DOT_WORD | |
1702 | /* Handle long and short jumps. We don't support these */ | |
1703 | void | |
1704 | md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
1705 | char *ptr; | |
1706 | addressT from_addr, to_addr; | |
1707 | fragS *frag; | |
1708 | symbolS *to_symbol; | |
1709 | { | |
1710 | abort (); | |
1711 | } | |
1712 | ||
1713 | void | |
1714 | md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
1715 | char *ptr; | |
1716 | addressT from_addr, to_addr; | |
1717 | fragS *frag; | |
1718 | symbolS *to_symbol; | |
1719 | { | |
1720 | abort (); | |
1721 | } | |
1722 | #endif | |
1723 | ||
1724 | void | |
5a49b8ac | 1725 | s390_bss (int ignore ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
1726 | { |
1727 | /* We don't support putting frags in the BSS segment, we fake it | |
1728 | by marking in_bss, then looking at s_skip for clues. */ | |
1729 | ||
1730 | subseg_set (bss_section, 0); | |
1731 | demand_empty_rest_of_line (); | |
1732 | } | |
1733 | ||
1734 | /* Pseudo-op handling. */ | |
1735 | ||
1736 | void | |
5a49b8ac | 1737 | s390_insn (int ignore ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
1738 | { |
1739 | expressionS exp; | |
1740 | const struct s390_opcode *opformat; | |
1741 | unsigned char insn[6]; | |
1742 | char *s; | |
1743 | ||
1744 | /* Get the opcode format. */ | |
1745 | s = input_line_pointer; | |
3882b010 | 1746 | while (*s != '\0' && *s != ',' && ! ISSPACE (*s)) |
a85d7ed0 NC |
1747 | s++; |
1748 | if (*s != ',') | |
1749 | as_bad (_("Invalid .insn format\n")); | |
1750 | *s++ = '\0'; | |
1751 | ||
1752 | /* Look up the opcode in the hash table. */ | |
1753 | opformat = (struct s390_opcode *) | |
629310ab | 1754 | str_hash_find (s390_opformat_hash, input_line_pointer); |
07855bec NC |
1755 | if (opformat == (const struct s390_opcode *) NULL) |
1756 | { | |
1757 | as_bad (_("Unrecognized opcode format: `%s'"), input_line_pointer); | |
1758 | return; | |
1759 | } | |
a85d7ed0 NC |
1760 | input_line_pointer = s; |
1761 | expression (&exp); | |
07855bec NC |
1762 | if (exp.X_op == O_constant) |
1763 | { | |
1d6d62a4 | 1764 | if ( ( opformat->oplen == 6 |
1d6d62a4 MS |
1765 | && (addressT) exp.X_add_number < (1ULL << 48)) |
1766 | || ( opformat->oplen == 4 | |
1d6d62a4 MS |
1767 | && (addressT) exp.X_add_number < (1ULL << 32)) |
1768 | || ( opformat->oplen == 2 | |
1d6d62a4 | 1769 | && (addressT) exp.X_add_number < (1ULL << 16))) |
2132e3a3 | 1770 | md_number_to_chars ((char *) insn, exp.X_add_number, opformat->oplen); |
07855bec | 1771 | else |
07726851 | 1772 | as_bad (_("Invalid .insn format\n")); |
07855bec NC |
1773 | } |
1774 | else if (exp.X_op == O_big) | |
1775 | { | |
16a419ba NC |
1776 | if (exp.X_add_number > 0 |
1777 | && opformat->oplen == 6 | |
1778 | && generic_bignum[3] == 0) | |
07855bec | 1779 | { |
2132e3a3 AM |
1780 | md_number_to_chars ((char *) insn, generic_bignum[2], 2); |
1781 | md_number_to_chars ((char *) &insn[2], generic_bignum[1], 2); | |
1782 | md_number_to_chars ((char *) &insn[4], generic_bignum[0], 2); | |
07855bec NC |
1783 | } |
1784 | else | |
07726851 | 1785 | as_bad (_("Invalid .insn format\n")); |
07855bec NC |
1786 | } |
1787 | else | |
a85d7ed0 | 1788 | as_bad (_("second operand of .insn not a constant\n")); |
a85d7ed0 | 1789 | |
b6849f55 NC |
1790 | if (strcmp (opformat->name, "e") != 0 && *input_line_pointer++ != ',') |
1791 | as_bad (_("missing comma after insn constant\n")); | |
98d3f06f | 1792 | |
07726851 | 1793 | if ((s = strchr (input_line_pointer, '\n')) != NULL) |
a85d7ed0 | 1794 | *s = '\0'; |
b6849f55 NC |
1795 | input_line_pointer = md_gather_operands (input_line_pointer, insn, |
1796 | opformat); | |
a85d7ed0 NC |
1797 | if (s != NULL) |
1798 | *s = '\n'; | |
1799 | demand_empty_rest_of_line (); | |
1800 | } | |
1801 | ||
1802 | /* The .byte pseudo-op. This is similar to the normal .byte | |
1803 | pseudo-op, but it can also take a single ASCII string. */ | |
1804 | ||
1805 | static void | |
5a49b8ac | 1806 | s390_byte (int ignore ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
1807 | { |
1808 | if (*input_line_pointer != '\"') | |
1809 | { | |
1810 | cons (1); | |
1811 | return; | |
1812 | } | |
1813 | ||
1814 | /* Gather characters. A real double quote is doubled. Unusual | |
1815 | characters are not permitted. */ | |
1816 | ++input_line_pointer; | |
1817 | while (1) | |
1818 | { | |
1819 | char c; | |
1820 | ||
1821 | c = *input_line_pointer++; | |
1822 | ||
1823 | if (c == '\"') | |
1824 | { | |
1825 | if (*input_line_pointer != '\"') | |
1826 | break; | |
1827 | ++input_line_pointer; | |
1828 | } | |
1829 | ||
1830 | FRAG_APPEND_1_CHAR (c); | |
1831 | } | |
1832 | ||
1833 | demand_empty_rest_of_line (); | |
1834 | } | |
1835 | ||
1836 | /* The .ltorg pseudo-op.This emits all literals defined since the last | |
198ce79b | 1837 | .ltorg or the invocation of gas. Literals are defined with the |
a85d7ed0 NC |
1838 | @lit suffix. */ |
1839 | ||
1840 | static void | |
5a49b8ac | 1841 | s390_literals (int ignore ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
1842 | { |
1843 | struct s390_lpe *lpe; | |
1844 | ||
1845 | if (lp_sym == NULL || lpe_count == 0) | |
98d3f06f | 1846 | return; /* Nothing to be done. */ |
a85d7ed0 NC |
1847 | |
1848 | /* Emit symbol for start of literal pool. */ | |
1849 | S_SET_SEGMENT (lp_sym, now_seg); | |
1850 | S_SET_VALUE (lp_sym, (valueT) frag_now_fix ()); | |
8d1015a8 | 1851 | symbol_set_frag (lp_sym, frag_now); |
a85d7ed0 | 1852 | |
07855bec NC |
1853 | while (lpe_list) |
1854 | { | |
1855 | lpe = lpe_list; | |
1856 | lpe_list = lpe_list->next; | |
1857 | S_SET_SEGMENT (lpe->sym, now_seg); | |
1858 | S_SET_VALUE (lpe->sym, (valueT) frag_now_fix ()); | |
8d1015a8 | 1859 | symbol_set_frag (lpe->sym, frag_now); |
07855bec NC |
1860 | |
1861 | /* Emit literal pool entry. */ | |
1862 | if (lpe->reloc != BFD_RELOC_UNUSED) | |
1863 | { | |
198ce79b | 1864 | reloc_howto_type *reloc_howto = |
07855bec NC |
1865 | bfd_reloc_type_lookup (stdoutput, lpe->reloc); |
1866 | int size = bfd_get_reloc_size (reloc_howto); | |
1867 | char *where; | |
1868 | ||
1869 | if (size > lpe->nbytes) | |
992a06ee AM |
1870 | as_bad (ngettext ("%s relocations do not fit in %d byte", |
1871 | "%s relocations do not fit in %d bytes", | |
1872 | lpe->nbytes), | |
07855bec | 1873 | reloc_howto->name, lpe->nbytes); |
07726851 | 1874 | where = frag_more (lpe->nbytes); |
07855bec NC |
1875 | md_number_to_chars (where, 0, size); |
1876 | fix_new_exp (frag_now, where - frag_now->fr_literal, | |
1877 | size, &lpe->ex, reloc_howto->pc_relative, lpe->reloc); | |
1878 | } | |
1879 | else | |
1880 | { | |
1881 | if (lpe->ex.X_op == O_big) | |
1882 | { | |
1883 | if (lpe->ex.X_add_number <= 0) | |
1884 | generic_floating_point_number = lpe->floatnum; | |
1885 | else | |
1886 | memcpy (generic_bignum, lpe->bignum, | |
98d3f06f | 1887 | lpe->ex.X_add_number * sizeof (LITTLENUM_TYPE)); |
07855bec NC |
1888 | } |
1889 | emit_expr (&lpe->ex, lpe->nbytes); | |
1890 | } | |
a85d7ed0 | 1891 | |
07855bec NC |
1892 | lpe->next = lpe_free_list; |
1893 | lpe_free_list = lpe; | |
1894 | } | |
a85d7ed0 NC |
1895 | lpe_list_tail = NULL; |
1896 | lp_sym = NULL; | |
1897 | lp_count++; | |
1898 | lpe_count = 0; | |
1899 | } | |
1900 | ||
7ecc513a DV |
1901 | #define MAX_HISTORY 100 |
1902 | ||
902cc293 AK |
1903 | /* The .machine pseudo op allows to switch to a different CPU level in |
1904 | the asm listing. The current CPU setting can be stored on a stack | |
1dd53816 | 1905 | with .machine push and restored with .machine pop. */ |
902cc293 AK |
1906 | |
1907 | static void | |
1908 | s390_machine (int ignore ATTRIBUTE_UNUSED) | |
1909 | { | |
1910 | char *cpu_string; | |
325801bd | 1911 | static struct cpu_history |
7ecc513a DV |
1912 | { |
1913 | unsigned int cpu; | |
1914 | unsigned int flags; | |
1915 | } *cpu_history; | |
902cc293 AK |
1916 | static int curr_hist; |
1917 | ||
1918 | SKIP_WHITESPACE (); | |
1919 | ||
1920 | if (*input_line_pointer == '"') | |
1921 | { | |
1922 | int len; | |
1923 | cpu_string = demand_copy_C_string (&len); | |
1924 | } | |
1925 | else | |
1926 | { | |
1927 | char c; | |
7ecc513a DV |
1928 | |
1929 | cpu_string = input_line_pointer; | |
1930 | do | |
1931 | { | |
1932 | char * str; | |
1933 | ||
1934 | c = get_symbol_name (&str); | |
1935 | c = restore_line_pointer (c); | |
1936 | if (c == '+') | |
1937 | ++ input_line_pointer; | |
1938 | } | |
1939 | while (c == '+'); | |
1940 | ||
1941 | c = *input_line_pointer; | |
1942 | *input_line_pointer = 0; | |
902cc293 | 1943 | cpu_string = xstrdup (cpu_string); |
d02603dc | 1944 | (void) restore_line_pointer (c); |
902cc293 AK |
1945 | } |
1946 | ||
1947 | if (cpu_string != NULL) | |
1948 | { | |
7ecc513a DV |
1949 | unsigned int new_cpu = current_cpu; |
1950 | unsigned int new_flags = current_flags; | |
902cc293 AK |
1951 | |
1952 | if (strcmp (cpu_string, "push") == 0) | |
1953 | { | |
1954 | if (cpu_history == NULL) | |
325801bd | 1955 | cpu_history = XNEWVEC (struct cpu_history, MAX_HISTORY); |
902cc293 AK |
1956 | |
1957 | if (curr_hist >= MAX_HISTORY) | |
1958 | as_bad (_(".machine stack overflow")); | |
1959 | else | |
7ecc513a DV |
1960 | { |
1961 | cpu_history[curr_hist].cpu = current_cpu; | |
1962 | cpu_history[curr_hist].flags = current_flags; | |
1963 | curr_hist++; | |
1964 | } | |
902cc293 AK |
1965 | } |
1966 | else if (strcmp (cpu_string, "pop") == 0) | |
1967 | { | |
1968 | if (curr_hist <= 0) | |
1969 | as_bad (_(".machine stack underflow")); | |
1970 | else | |
7ecc513a DV |
1971 | { |
1972 | curr_hist--; | |
1973 | new_cpu = cpu_history[curr_hist].cpu; | |
1974 | new_flags = cpu_history[curr_hist].flags; | |
1975 | } | |
902cc293 | 1976 | } |
902cc293 | 1977 | else |
7ecc513a DV |
1978 | new_cpu = s390_parse_cpu (cpu_string, &new_flags, TRUE); |
1979 | ||
1980 | if (new_cpu == S390_OPCODE_MAXCPU) | |
902cc293 AK |
1981 | as_bad (_("invalid machine `%s'"), cpu_string); |
1982 | ||
7ecc513a DV |
1983 | if (new_cpu != current_cpu || new_flags != current_flags) |
1984 | { | |
1985 | current_cpu = new_cpu; | |
1986 | current_flags = new_flags; | |
1987 | s390_setup_opcodes (); | |
1988 | } | |
902cc293 AK |
1989 | } |
1990 | ||
1991 | demand_empty_rest_of_line (); | |
1992 | } | |
1993 | ||
1dd53816 AK |
1994 | /* The .machinemode pseudo op allows to switch to a different |
1995 | architecture mode in the asm listing. The current architecture | |
1996 | mode setting can be stored on a stack with .machinemode push and | |
1997 | restored with .machinemode pop. */ | |
1998 | ||
1999 | static void | |
2000 | s390_machinemode (int ignore ATTRIBUTE_UNUSED) | |
2001 | { | |
2002 | char *mode_string; | |
1dd53816 AK |
2003 | static unsigned int *mode_history; |
2004 | static int curr_hist; | |
2005 | ||
2006 | SKIP_WHITESPACE (); | |
2007 | ||
d02603dc NC |
2008 | { |
2009 | char c; | |
2010 | ||
2011 | c = get_symbol_name (&mode_string); | |
2012 | mode_string = xstrdup (mode_string); | |
2013 | (void) restore_line_pointer (c); | |
2014 | } | |
1dd53816 AK |
2015 | |
2016 | if (mode_string != NULL) | |
2017 | { | |
2018 | unsigned int old_mode_mask = current_mode_mask; | |
2019 | char *p; | |
2020 | ||
2021 | for (p = mode_string; *p != 0; p++) | |
2022 | *p = TOLOWER (*p); | |
2023 | ||
2024 | if (strcmp (mode_string, "push") == 0) | |
2025 | { | |
2026 | if (mode_history == NULL) | |
325801bd | 2027 | mode_history = XNEWVEC (unsigned int, MAX_HISTORY); |
1dd53816 AK |
2028 | |
2029 | if (curr_hist >= MAX_HISTORY) | |
2030 | as_bad (_(".machinemode stack overflow")); | |
2031 | else | |
2032 | mode_history[curr_hist++] = current_mode_mask; | |
2033 | } | |
2034 | else if (strcmp (mode_string, "pop") == 0) | |
2035 | { | |
2036 | if (curr_hist <= 0) | |
2037 | as_bad (_(".machinemode stack underflow")); | |
2038 | else | |
2039 | current_mode_mask = mode_history[--curr_hist]; | |
2040 | } | |
2041 | else | |
2042 | { | |
2043 | if (strcmp (mode_string, "esa") == 0) | |
2044 | current_mode_mask = 1 << S390_OPCODE_ESA; | |
2045 | else if (strcmp (mode_string, "zarch") == 0) | |
2046 | { | |
2047 | if (s390_arch_size == 32) | |
2048 | set_highgprs_p = TRUE; | |
2049 | current_mode_mask = 1 << S390_OPCODE_ZARCH; | |
2050 | } | |
2051 | else if (strcmp (mode_string, "zarch_nohighgprs") == 0) | |
2052 | current_mode_mask = 1 << S390_OPCODE_ZARCH; | |
2053 | else | |
7ecc513a | 2054 | as_bad (_("invalid machine mode `%s'"), mode_string); |
1dd53816 AK |
2055 | } |
2056 | ||
2057 | if (current_mode_mask != old_mode_mask) | |
2058 | s390_setup_opcodes (); | |
2059 | } | |
2060 | ||
2061 | demand_empty_rest_of_line (); | |
2062 | } | |
2063 | ||
7ecc513a DV |
2064 | #undef MAX_HISTORY |
2065 | ||
6d4af3c2 | 2066 | const char * |
499ac353 | 2067 | md_atof (int type, char *litp, int *sizep) |
a85d7ed0 | 2068 | { |
499ac353 | 2069 | return ieee_md_atof (type, litp, sizep, TRUE); |
a85d7ed0 NC |
2070 | } |
2071 | ||
2072 | /* Align a section (I don't know why this is machine dependent). */ | |
2073 | ||
2074 | valueT | |
5a49b8ac | 2075 | md_section_align (asection *seg, valueT addr) |
a85d7ed0 | 2076 | { |
fd361982 | 2077 | int align = bfd_section_alignment (seg); |
a85d7ed0 | 2078 | |
8d3842cd | 2079 | return ((addr + (1 << align) - 1) & -(1 << align)); |
a85d7ed0 NC |
2080 | } |
2081 | ||
2082 | /* We don't have any form of relaxing. */ | |
2083 | ||
2084 | int | |
5a49b8ac AM |
2085 | md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED, |
2086 | asection *seg ATTRIBUTE_UNUSED) | |
a85d7ed0 NC |
2087 | { |
2088 | abort (); | |
2089 | return 0; | |
2090 | } | |
2091 | ||
2092 | /* Convert a machine dependent frag. We never generate these. */ | |
2093 | ||
2094 | void | |
5a49b8ac AM |
2095 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, |
2096 | asection *sec ATTRIBUTE_UNUSED, | |
2097 | fragS *fragp ATTRIBUTE_UNUSED) | |
a85d7ed0 NC |
2098 | { |
2099 | abort (); | |
2100 | } | |
2101 | ||
2102 | symbolS * | |
5a49b8ac | 2103 | md_undefined_symbol (char *name) |
a85d7ed0 | 2104 | { |
98d3f06f | 2105 | if (*name == '_' && *(name + 1) == 'G' |
07726851 | 2106 | && strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0) |
98d3f06f KH |
2107 | { |
2108 | if (!GOT_symbol) | |
2109 | { | |
2110 | if (symbol_find (name)) | |
2111 | as_bad (_("GOT already in symbol table")); | |
2112 | GOT_symbol = symbol_new (name, undefined_section, | |
e01e1cee | 2113 | &zero_address_frag, 0); |
98d3f06f KH |
2114 | } |
2115 | return GOT_symbol; | |
2116 | } | |
a85d7ed0 NC |
2117 | return 0; |
2118 | } | |
2119 | ||
2120 | /* Functions concerning relocs. */ | |
2121 | ||
2122 | /* The location from which a PC relative jump should be calculated, | |
2123 | given a PC relative reloc. */ | |
2124 | ||
2125 | long | |
5a49b8ac | 2126 | md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
2127 | { |
2128 | return fixp->fx_frag->fr_address + fixp->fx_where; | |
2129 | } | |
2130 | ||
2131 | /* Here we decide which fixups can be adjusted to make them relative to | |
2132 | the beginning of the section instead of the symbol. Basically we need | |
2133 | to make sure that the dynamic relocations are done correctly, so in | |
2134 | some cases we force the original symbol to be used. */ | |
2135 | int | |
5a49b8ac | 2136 | tc_s390_fix_adjustable (fixS *fixP) |
a85d7ed0 | 2137 | { |
dc1e4d6d NC |
2138 | /* Don't adjust pc-relative references to merge sections. */ |
2139 | if (fixP->fx_pcrel | |
2140 | && (S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_MERGE) != 0) | |
0a00dd48 | 2141 | return 0; |
dc1e4d6d | 2142 | |
a85d7ed0 | 2143 | /* adjust_reloc_syms doesn't know about the GOT. */ |
2a19f73f MS |
2144 | if ( fixP->fx_r_type == BFD_RELOC_16_GOTOFF |
2145 | || fixP->fx_r_type == BFD_RELOC_32_GOTOFF | |
2146 | || fixP->fx_r_type == BFD_RELOC_390_GOTOFF64 | |
2147 | || fixP->fx_r_type == BFD_RELOC_390_PLTOFF16 | |
2148 | || fixP->fx_r_type == BFD_RELOC_390_PLTOFF32 | |
2149 | || fixP->fx_r_type == BFD_RELOC_390_PLTOFF64 | |
fb798c50 | 2150 | || fixP->fx_r_type == BFD_RELOC_390_PLT12DBL |
a85d7ed0 | 2151 | || fixP->fx_r_type == BFD_RELOC_390_PLT16DBL |
fb798c50 | 2152 | || fixP->fx_r_type == BFD_RELOC_390_PLT24DBL |
a85d7ed0 NC |
2153 | || fixP->fx_r_type == BFD_RELOC_390_PLT32 |
2154 | || fixP->fx_r_type == BFD_RELOC_390_PLT32DBL | |
2155 | || fixP->fx_r_type == BFD_RELOC_390_PLT64 | |
2156 | || fixP->fx_r_type == BFD_RELOC_390_GOT12 | |
933fbc29 | 2157 | || fixP->fx_r_type == BFD_RELOC_390_GOT20 |
a85d7ed0 NC |
2158 | || fixP->fx_r_type == BFD_RELOC_390_GOT16 |
2159 | || fixP->fx_r_type == BFD_RELOC_32_GOT_PCREL | |
2160 | || fixP->fx_r_type == BFD_RELOC_390_GOT64 | |
07855bec | 2161 | || fixP->fx_r_type == BFD_RELOC_390_GOTENT |
2a19f73f MS |
2162 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT12 |
2163 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT16 | |
933fbc29 | 2164 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT20 |
2a19f73f MS |
2165 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT32 |
2166 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLT64 | |
2167 | || fixP->fx_r_type == BFD_RELOC_390_GOTPLTENT | |
1971b29d MS |
2168 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LOAD |
2169 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GDCALL | |
2170 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDCALL | |
2171 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GD32 | |
2172 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GD64 | |
2173 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE12 | |
933fbc29 | 2174 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE20 |
1971b29d MS |
2175 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE32 |
2176 | || fixP->fx_r_type == BFD_RELOC_390_TLS_GOTIE64 | |
2177 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDM32 | |
2178 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDM64 | |
2179 | || fixP->fx_r_type == BFD_RELOC_390_TLS_IE32 | |
2180 | || fixP->fx_r_type == BFD_RELOC_390_TLS_IE64 | |
2181 | || fixP->fx_r_type == BFD_RELOC_390_TLS_IEENT | |
2182 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LE32 | |
2183 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LE64 | |
2184 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDO32 | |
2185 | || fixP->fx_r_type == BFD_RELOC_390_TLS_LDO64 | |
2186 | || fixP->fx_r_type == BFD_RELOC_390_TLS_DTPMOD | |
2187 | || fixP->fx_r_type == BFD_RELOC_390_TLS_DTPOFF | |
2188 | || fixP->fx_r_type == BFD_RELOC_390_TLS_TPOFF | |
a85d7ed0 NC |
2189 | || fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT |
2190 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
2191 | return 0; | |
2192 | return 1; | |
2193 | } | |
2194 | ||
b8edc45c | 2195 | /* Return true if we must always emit a reloc for a type and false if |
c03099e6 | 2196 | there is some hope of resolving it at assembly time. */ |
b8edc45c | 2197 | int |
5a49b8ac | 2198 | tc_s390_force_relocation (struct fix *fixp) |
b8edc45c MS |
2199 | { |
2200 | /* Ensure we emit a relocation for every reference to the global | |
2201 | offset table or to the procedure link table. */ | |
2202 | switch (fixp->fx_r_type) | |
2203 | { | |
2204 | case BFD_RELOC_390_GOT12: | |
933fbc29 | 2205 | case BFD_RELOC_390_GOT20: |
b8edc45c MS |
2206 | case BFD_RELOC_32_GOT_PCREL: |
2207 | case BFD_RELOC_32_GOTOFF: | |
2a19f73f MS |
2208 | case BFD_RELOC_390_GOTOFF64: |
2209 | case BFD_RELOC_390_PLTOFF16: | |
2210 | case BFD_RELOC_390_PLTOFF32: | |
2211 | case BFD_RELOC_390_PLTOFF64: | |
b8edc45c MS |
2212 | case BFD_RELOC_390_GOTPC: |
2213 | case BFD_RELOC_390_GOT16: | |
2214 | case BFD_RELOC_390_GOTPCDBL: | |
2215 | case BFD_RELOC_390_GOT64: | |
2216 | case BFD_RELOC_390_GOTENT: | |
2217 | case BFD_RELOC_390_PLT32: | |
fb798c50 | 2218 | case BFD_RELOC_390_PLT12DBL: |
b8edc45c | 2219 | case BFD_RELOC_390_PLT16DBL: |
fb798c50 | 2220 | case BFD_RELOC_390_PLT24DBL: |
b8edc45c MS |
2221 | case BFD_RELOC_390_PLT32DBL: |
2222 | case BFD_RELOC_390_PLT64: | |
2a19f73f MS |
2223 | case BFD_RELOC_390_GOTPLT12: |
2224 | case BFD_RELOC_390_GOTPLT16: | |
933fbc29 | 2225 | case BFD_RELOC_390_GOTPLT20: |
2a19f73f MS |
2226 | case BFD_RELOC_390_GOTPLT32: |
2227 | case BFD_RELOC_390_GOTPLT64: | |
2228 | case BFD_RELOC_390_GOTPLTENT: | |
b8edc45c MS |
2229 | return 1; |
2230 | default: | |
5bb3703f | 2231 | break; |
b8edc45c | 2232 | } |
a161fe53 | 2233 | |
ae6063d4 | 2234 | return generic_force_reloc (fixp); |
b8edc45c MS |
2235 | } |
2236 | ||
a85d7ed0 NC |
2237 | /* Apply a fixup to the object code. This is called for all the |
2238 | fixups we generated by the call to fix_new_exp, above. In the call | |
2239 | above we used a reloc code which was the largest legal reloc code | |
2240 | plus the operand index. Here we undo that to recover the operand | |
2241 | index. At this point all symbol values should be fully resolved, | |
2242 | and we attempt to completely resolve the reloc. If we can not do | |
2243 | that, we determine the correct reloc code and put it back in the | |
2244 | fixup. */ | |
2245 | ||
94f592af | 2246 | void |
5a49b8ac | 2247 | md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) |
a85d7ed0 NC |
2248 | { |
2249 | char *where; | |
98d3f06f | 2250 | valueT value = *valP; |
a85d7ed0 | 2251 | |
94f592af | 2252 | where = fixP->fx_frag->fr_literal + fixP->fx_where; |
a85d7ed0 | 2253 | |
98d3f06f | 2254 | if (fixP->fx_subsy != NULL) |
f1fc51da | 2255 | as_bad_where (fixP->fx_file, fixP->fx_line, |
20203fb9 | 2256 | _("cannot emit relocation %s against subsy symbol %s"), |
f1fc51da MS |
2257 | bfd_get_reloc_code_name (fixP->fx_r_type), |
2258 | S_GET_NAME (fixP->fx_subsy)); | |
98d3f06f KH |
2259 | |
2260 | if (fixP->fx_addsy != NULL) | |
07855bec | 2261 | { |
94f592af NC |
2262 | if (fixP->fx_pcrel) |
2263 | value += fixP->fx_frag->fr_address + fixP->fx_where; | |
07855bec NC |
2264 | } |
2265 | else | |
94f592af | 2266 | fixP->fx_done = 1; |
a85d7ed0 | 2267 | |
94f592af | 2268 | if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED) |
07855bec NC |
2269 | { |
2270 | const struct s390_operand *operand; | |
2271 | int opindex; | |
198ce79b | 2272 | |
94f592af | 2273 | opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED; |
07855bec | 2274 | operand = &s390_operands[opindex]; |
198ce79b | 2275 | |
94f592af | 2276 | if (fixP->fx_done) |
07855bec NC |
2277 | { |
2278 | /* Insert the fully resolved operand value. */ | |
2132e3a3 AM |
2279 | s390_insert_operand ((unsigned char *) where, operand, |
2280 | (offsetT) value, fixP->fx_file, fixP->fx_line); | |
94f592af | 2281 | return; |
07855bec | 2282 | } |
198ce79b | 2283 | |
07855bec NC |
2284 | /* Determine a BFD reloc value based on the operand information. |
2285 | We are only prepared to turn a few of the operands into | |
2286 | relocs. */ | |
94f592af | 2287 | fixP->fx_offset = value; |
07855bec NC |
2288 | if (operand->bits == 12 && operand->shift == 20) |
2289 | { | |
94f592af NC |
2290 | fixP->fx_size = 2; |
2291 | fixP->fx_where += 2; | |
2292 | fixP->fx_r_type = BFD_RELOC_390_12; | |
07855bec NC |
2293 | } |
2294 | else if (operand->bits == 12 && operand->shift == 36) | |
2295 | { | |
94f592af NC |
2296 | fixP->fx_size = 2; |
2297 | fixP->fx_where += 4; | |
2298 | fixP->fx_r_type = BFD_RELOC_390_12; | |
07855bec | 2299 | } |
933fbc29 MS |
2300 | else if (operand->bits == 20 && operand->shift == 20) |
2301 | { | |
3d6e0c01 | 2302 | fixP->fx_size = 4; |
933fbc29 MS |
2303 | fixP->fx_where += 2; |
2304 | fixP->fx_r_type = BFD_RELOC_390_20; | |
2305 | } | |
07855bec NC |
2306 | else if (operand->bits == 8 && operand->shift == 8) |
2307 | { | |
94f592af NC |
2308 | fixP->fx_size = 1; |
2309 | fixP->fx_where += 1; | |
2310 | fixP->fx_r_type = BFD_RELOC_8; | |
07855bec | 2311 | } |
fb798c50 AK |
2312 | else if (operand->bits == 12 && operand->shift == 12 |
2313 | && (operand->flags & S390_OPERAND_PCREL)) | |
2314 | { | |
2315 | fixP->fx_size = 2; | |
2316 | fixP->fx_where += 1; | |
2317 | fixP->fx_offset += 1; | |
feb4bea7 | 2318 | fixP->fx_pcrel_adjust = 1; |
fb798c50 AK |
2319 | fixP->fx_r_type = BFD_RELOC_390_PC12DBL; |
2320 | } | |
07855bec NC |
2321 | else if (operand->bits == 16 && operand->shift == 16) |
2322 | { | |
94f592af NC |
2323 | fixP->fx_size = 2; |
2324 | fixP->fx_where += 2; | |
07855bec NC |
2325 | if (operand->flags & S390_OPERAND_PCREL) |
2326 | { | |
94f592af NC |
2327 | fixP->fx_r_type = BFD_RELOC_390_PC16DBL; |
2328 | fixP->fx_offset += 2; | |
feb4bea7 | 2329 | fixP->fx_pcrel_adjust = 2; |
07855bec NC |
2330 | } |
2331 | else | |
94f592af | 2332 | fixP->fx_r_type = BFD_RELOC_16; |
07855bec | 2333 | } |
feb4bea7 AK |
2334 | else if (operand->bits == 16 && operand->shift == 32 |
2335 | && (operand->flags & S390_OPERAND_PCREL)) | |
2336 | { | |
2337 | fixP->fx_size = 2; | |
2338 | fixP->fx_where += 4; | |
2339 | fixP->fx_offset += 4; | |
2340 | fixP->fx_pcrel_adjust = 4; | |
2341 | fixP->fx_r_type = BFD_RELOC_390_PC16DBL; | |
2342 | } | |
fb798c50 AK |
2343 | else if (operand->bits == 24 && operand->shift == 24 |
2344 | && (operand->flags & S390_OPERAND_PCREL)) | |
2345 | { | |
2346 | fixP->fx_size = 3; | |
2347 | fixP->fx_where += 3; | |
2348 | fixP->fx_offset += 3; | |
feb4bea7 | 2349 | fixP->fx_pcrel_adjust = 3; |
fb798c50 AK |
2350 | fixP->fx_r_type = BFD_RELOC_390_PC24DBL; |
2351 | } | |
16a419ba NC |
2352 | else if (operand->bits == 32 && operand->shift == 16 |
2353 | && (operand->flags & S390_OPERAND_PCREL)) | |
07855bec | 2354 | { |
94f592af NC |
2355 | fixP->fx_size = 4; |
2356 | fixP->fx_where += 2; | |
2357 | fixP->fx_offset += 2; | |
feb4bea7 | 2358 | fixP->fx_pcrel_adjust = 2; |
94f592af | 2359 | fixP->fx_r_type = BFD_RELOC_390_PC32DBL; |
07855bec | 2360 | } |
a85d7ed0 | 2361 | else |
07855bec | 2362 | { |
3b4dbbbf | 2363 | const char *sfile; |
07855bec | 2364 | unsigned int sline; |
198ce79b | 2365 | |
07855bec NC |
2366 | /* Use expr_symbol_where to see if this is an expression |
2367 | symbol. */ | |
94f592af NC |
2368 | if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline)) |
2369 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
07855bec NC |
2370 | _("unresolved expression that must be resolved")); |
2371 | else | |
94f592af | 2372 | as_bad_where (fixP->fx_file, fixP->fx_line, |
07855bec | 2373 | _("unsupported relocation type")); |
94f592af NC |
2374 | fixP->fx_done = 1; |
2375 | return; | |
07855bec | 2376 | } |
a85d7ed0 | 2377 | } |
07855bec NC |
2378 | else |
2379 | { | |
94f592af | 2380 | switch (fixP->fx_r_type) |
07855bec NC |
2381 | { |
2382 | case BFD_RELOC_8: | |
94f592af | 2383 | if (fixP->fx_pcrel) |
07855bec | 2384 | abort (); |
94f592af | 2385 | if (fixP->fx_done) |
07855bec NC |
2386 | md_number_to_chars (where, value, 1); |
2387 | break; | |
2388 | case BFD_RELOC_390_12: | |
2389 | case BFD_RELOC_390_GOT12: | |
2a19f73f | 2390 | case BFD_RELOC_390_GOTPLT12: |
fb798c50 AK |
2391 | case BFD_RELOC_390_PC12DBL: |
2392 | case BFD_RELOC_390_PLT12DBL: | |
2393 | if (fixP->fx_pcrel) | |
feb4bea7 | 2394 | value += fixP->fx_pcrel_adjust; |
fb798c50 | 2395 | |
94f592af | 2396 | if (fixP->fx_done) |
07855bec NC |
2397 | { |
2398 | unsigned short mop; | |
2399 | ||
fb798c50 AK |
2400 | if (fixP->fx_pcrel) |
2401 | value >>= 1; | |
2402 | ||
07855bec NC |
2403 | mop = bfd_getb16 ((unsigned char *) where); |
2404 | mop |= (unsigned short) (value & 0xfff); | |
2405 | bfd_putb16 ((bfd_vma) mop, (unsigned char *) where); | |
198ce79b | 2406 | } |
07855bec | 2407 | break; |
198ce79b | 2408 | |
933fbc29 MS |
2409 | case BFD_RELOC_390_20: |
2410 | case BFD_RELOC_390_GOT20: | |
2411 | case BFD_RELOC_390_GOTPLT20: | |
2412 | if (fixP->fx_done) | |
2413 | { | |
2414 | unsigned int mop; | |
2415 | mop = bfd_getb32 ((unsigned char *) where); | |
2416 | mop |= (unsigned int) ((value & 0xfff) << 8 | | |
2417 | (value & 0xff000) >> 12); | |
2418 | bfd_putb32 ((bfd_vma) mop, (unsigned char *) where); | |
3739860c | 2419 | } |
933fbc29 MS |
2420 | break; |
2421 | ||
07855bec NC |
2422 | case BFD_RELOC_16: |
2423 | case BFD_RELOC_GPREL16: | |
2424 | case BFD_RELOC_16_GOT_PCREL: | |
2425 | case BFD_RELOC_16_GOTOFF: | |
94f592af NC |
2426 | if (fixP->fx_pcrel) |
2427 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
20203fb9 | 2428 | _("cannot emit PC relative %s relocation%s%s"), |
94f592af NC |
2429 | bfd_get_reloc_code_name (fixP->fx_r_type), |
2430 | fixP->fx_addsy != NULL ? " against " : "", | |
2431 | (fixP->fx_addsy != NULL | |
2432 | ? S_GET_NAME (fixP->fx_addsy) | |
07855bec | 2433 | : "")); |
94f592af | 2434 | if (fixP->fx_done) |
07855bec NC |
2435 | md_number_to_chars (where, value, 2); |
2436 | break; | |
2437 | case BFD_RELOC_390_GOT16: | |
2a19f73f MS |
2438 | case BFD_RELOC_390_PLTOFF16: |
2439 | case BFD_RELOC_390_GOTPLT16: | |
94f592af | 2440 | if (fixP->fx_done) |
07855bec NC |
2441 | md_number_to_chars (where, value, 2); |
2442 | break; | |
2443 | case BFD_RELOC_390_PC16DBL: | |
2444 | case BFD_RELOC_390_PLT16DBL: | |
feb4bea7 | 2445 | value += fixP->fx_pcrel_adjust; |
94f592af | 2446 | if (fixP->fx_done) |
07855bec NC |
2447 | md_number_to_chars (where, (offsetT) value >> 1, 2); |
2448 | break; | |
2449 | ||
fb798c50 AK |
2450 | case BFD_RELOC_390_PC24DBL: |
2451 | case BFD_RELOC_390_PLT24DBL: | |
feb4bea7 | 2452 | value += fixP->fx_pcrel_adjust; |
fb798c50 AK |
2453 | if (fixP->fx_done) |
2454 | { | |
2455 | unsigned int mop; | |
2456 | value >>= 1; | |
2457 | ||
2458 | mop = bfd_getb32 ((unsigned char *) where - 1); | |
2459 | mop |= (unsigned int) (value & 0xffffff); | |
2460 | bfd_putb32 ((bfd_vma) mop, (unsigned char *) where - 1); | |
2461 | } | |
2462 | break; | |
2463 | ||
07855bec | 2464 | case BFD_RELOC_32: |
94f592af NC |
2465 | if (fixP->fx_pcrel) |
2466 | fixP->fx_r_type = BFD_RELOC_32_PCREL; | |
07855bec | 2467 | else |
94f592af NC |
2468 | fixP->fx_r_type = BFD_RELOC_32; |
2469 | if (fixP->fx_done) | |
07855bec NC |
2470 | md_number_to_chars (where, value, 4); |
2471 | break; | |
2472 | case BFD_RELOC_32_PCREL: | |
2473 | case BFD_RELOC_32_BASEREL: | |
94f592af NC |
2474 | fixP->fx_r_type = BFD_RELOC_32_PCREL; |
2475 | if (fixP->fx_done) | |
07855bec NC |
2476 | md_number_to_chars (where, value, 4); |
2477 | break; | |
2478 | case BFD_RELOC_32_GOT_PCREL: | |
2a19f73f | 2479 | case BFD_RELOC_390_PLTOFF32: |
07855bec | 2480 | case BFD_RELOC_390_PLT32: |
2a19f73f | 2481 | case BFD_RELOC_390_GOTPLT32: |
94f592af | 2482 | if (fixP->fx_done) |
07855bec NC |
2483 | md_number_to_chars (where, value, 4); |
2484 | break; | |
2485 | case BFD_RELOC_390_PC32DBL: | |
2486 | case BFD_RELOC_390_PLT32DBL: | |
2487 | case BFD_RELOC_390_GOTPCDBL: | |
2488 | case BFD_RELOC_390_GOTENT: | |
2a19f73f | 2489 | case BFD_RELOC_390_GOTPLTENT: |
feb4bea7 | 2490 | value += fixP->fx_pcrel_adjust; |
94f592af | 2491 | if (fixP->fx_done) |
07855bec NC |
2492 | md_number_to_chars (where, (offsetT) value >> 1, 4); |
2493 | break; | |
2494 | ||
2495 | case BFD_RELOC_32_GOTOFF: | |
94f592af | 2496 | if (fixP->fx_done) |
07726851 | 2497 | md_number_to_chars (where, value, sizeof (int)); |
07855bec NC |
2498 | break; |
2499 | ||
2a19f73f MS |
2500 | case BFD_RELOC_390_GOTOFF64: |
2501 | if (fixP->fx_done) | |
2502 | md_number_to_chars (where, value, 8); | |
2503 | break; | |
2504 | ||
07855bec | 2505 | case BFD_RELOC_390_GOT64: |
2a19f73f | 2506 | case BFD_RELOC_390_PLTOFF64: |
07855bec | 2507 | case BFD_RELOC_390_PLT64: |
2a19f73f | 2508 | case BFD_RELOC_390_GOTPLT64: |
94f592af | 2509 | if (fixP->fx_done) |
07855bec NC |
2510 | md_number_to_chars (where, value, 8); |
2511 | break; | |
2512 | ||
2513 | case BFD_RELOC_64: | |
94f592af NC |
2514 | if (fixP->fx_pcrel) |
2515 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
07855bec | 2516 | else |
94f592af NC |
2517 | fixP->fx_r_type = BFD_RELOC_64; |
2518 | if (fixP->fx_done) | |
07855bec NC |
2519 | md_number_to_chars (where, value, 8); |
2520 | break; | |
2521 | ||
2522 | case BFD_RELOC_64_PCREL: | |
94f592af NC |
2523 | fixP->fx_r_type = BFD_RELOC_64_PCREL; |
2524 | if (fixP->fx_done) | |
07855bec NC |
2525 | md_number_to_chars (where, value, 8); |
2526 | break; | |
2527 | ||
2528 | case BFD_RELOC_VTABLE_INHERIT: | |
2529 | case BFD_RELOC_VTABLE_ENTRY: | |
94f592af NC |
2530 | fixP->fx_done = 0; |
2531 | return; | |
07855bec | 2532 | |
1971b29d MS |
2533 | case BFD_RELOC_390_TLS_LOAD: |
2534 | case BFD_RELOC_390_TLS_GDCALL: | |
2535 | case BFD_RELOC_390_TLS_LDCALL: | |
2536 | case BFD_RELOC_390_TLS_GD32: | |
2537 | case BFD_RELOC_390_TLS_GD64: | |
2538 | case BFD_RELOC_390_TLS_GOTIE12: | |
933fbc29 | 2539 | case BFD_RELOC_390_TLS_GOTIE20: |
1971b29d MS |
2540 | case BFD_RELOC_390_TLS_GOTIE32: |
2541 | case BFD_RELOC_390_TLS_GOTIE64: | |
2542 | case BFD_RELOC_390_TLS_LDM32: | |
2543 | case BFD_RELOC_390_TLS_LDM64: | |
2544 | case BFD_RELOC_390_TLS_IE32: | |
2545 | case BFD_RELOC_390_TLS_IE64: | |
2546 | case BFD_RELOC_390_TLS_LE32: | |
2547 | case BFD_RELOC_390_TLS_LE64: | |
2548 | case BFD_RELOC_390_TLS_LDO32: | |
2549 | case BFD_RELOC_390_TLS_LDO64: | |
2550 | case BFD_RELOC_390_TLS_DTPMOD: | |
2551 | case BFD_RELOC_390_TLS_DTPOFF: | |
2552 | case BFD_RELOC_390_TLS_TPOFF: | |
7c1d0959 | 2553 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
1971b29d MS |
2554 | /* Fully resolved at link time. */ |
2555 | break; | |
2556 | case BFD_RELOC_390_TLS_IEENT: | |
2557 | /* Fully resolved at link time. */ | |
7c1d0959 | 2558 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
1971b29d MS |
2559 | value += 2; |
2560 | break; | |
2561 | ||
07855bec NC |
2562 | default: |
2563 | { | |
94f592af | 2564 | const char *reloc_name = bfd_get_reloc_code_name (fixP->fx_r_type); |
198ce79b | 2565 | |
07855bec | 2566 | if (reloc_name != NULL) |
20203fb9 | 2567 | as_fatal (_("Gas failure, reloc type %s\n"), reloc_name); |
07855bec | 2568 | else |
20203fb9 | 2569 | as_fatal (_("Gas failure, reloc type #%i\n"), fixP->fx_r_type); |
07855bec NC |
2570 | } |
2571 | } | |
a85d7ed0 | 2572 | |
94f592af | 2573 | fixP->fx_offset = value; |
07855bec | 2574 | } |
a85d7ed0 NC |
2575 | } |
2576 | ||
2577 | /* Generate a reloc for a fixup. */ | |
2578 | ||
2579 | arelent * | |
5a49b8ac | 2580 | tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp) |
a85d7ed0 NC |
2581 | { |
2582 | bfd_reloc_code_real_type code; | |
2583 | arelent *reloc; | |
2584 | ||
2585 | code = fixp->fx_r_type; | |
07855bec NC |
2586 | if (GOT_symbol && fixp->fx_addsy == GOT_symbol) |
2587 | { | |
16a419ba NC |
2588 | if ( (s390_arch_size == 32 && code == BFD_RELOC_32_PCREL) |
2589 | || (s390_arch_size == 64 && code == BFD_RELOC_64_PCREL)) | |
07855bec NC |
2590 | code = BFD_RELOC_390_GOTPC; |
2591 | if (code == BFD_RELOC_390_PC32DBL) | |
2592 | code = BFD_RELOC_390_GOTPCDBL; | |
2593 | } | |
a85d7ed0 | 2594 | |
325801bd TS |
2595 | reloc = XNEW (arelent); |
2596 | reloc->sym_ptr_ptr = XNEW (asymbol *); | |
a85d7ed0 NC |
2597 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
2598 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
2599 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
2600 | if (reloc->howto == NULL) | |
2601 | { | |
2602 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
98d3f06f KH |
2603 | _("cannot represent relocation type %s"), |
2604 | bfd_get_reloc_code_name (code)); | |
a85d7ed0 NC |
2605 | /* Set howto to a garbage value so that we can keep going. */ |
2606 | reloc->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); | |
9c2799c2 | 2607 | gas_assert (reloc->howto != NULL); |
a85d7ed0 NC |
2608 | } |
2609 | reloc->addend = fixp->fx_offset; | |
2610 | ||
2611 | return reloc; | |
2612 | } | |
75e21f08 JJ |
2613 | |
2614 | void | |
5a49b8ac | 2615 | s390_cfi_frame_initial_instructions (void) |
75e21f08 JJ |
2616 | { |
2617 | cfi_add_CFA_def_cfa (15, s390_arch_size == 64 ? 160 : 96); | |
2618 | } | |
2619 | ||
2620 | int | |
1df69f4f | 2621 | tc_s390_regname_to_dw2regnum (char *regname) |
75e21f08 JJ |
2622 | { |
2623 | int regnum = -1; | |
2624 | ||
2625 | if (regname[0] != 'c' && regname[0] != 'a') | |
2626 | { | |
1e2e8c52 | 2627 | regnum = reg_name_search (regname); |
75e21f08 JJ |
2628 | if (regname[0] == 'f' && regnum != -1) |
2629 | regnum += 16; | |
2630 | } | |
2631 | else if (strcmp (regname, "ap") == 0) | |
2632 | regnum = 32; | |
2633 | else if (strcmp (regname, "cc") == 0) | |
2634 | regnum = 33; | |
2635 | return regnum; | |
2636 | } | |
55786da2 AK |
2637 | |
2638 | void | |
2639 | s390_elf_final_processing (void) | |
2640 | { | |
1dd53816 | 2641 | if (set_highgprs_p) |
55786da2 AK |
2642 | elf_elfheader (stdoutput)->e_flags |= EF_S390_HIGH_GPRS; |
2643 | } |