Commit | Line | Data |
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252b5132 | 1 | /* tc-alpha.c - Processor-specific code for the DEC Alpha AXP CPU. |
cc8a6dd0 KH |
2 | Copyright 1989, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
3 | 2001, 2002 Free Software Foundation, Inc. | |
252b5132 RH |
4 | Contributed by Carnegie Mellon University, 1993. |
5 | Written by Alessandro Forin, based on earlier gas-1.38 target CPU files. | |
6 | Modified by Ken Raeburn for gas-2.x and ECOFF support. | |
7 | Modified by Richard Henderson for ELF support. | |
9de8d8f1 | 8 | Modified by Klaus K"ampf for EVAX (OpenVMS/Alpha) support. |
252b5132 RH |
9 | |
10 | This file is part of GAS, the GNU Assembler. | |
11 | ||
12 | GAS is free software; you can redistribute it and/or modify | |
13 | it under the terms of the GNU General Public License as published by | |
14 | the Free Software Foundation; either version 2, or (at your option) | |
15 | any later version. | |
16 | ||
17 | GAS is distributed in the hope that it will be useful, | |
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | GNU General Public License for more details. | |
21 | ||
22 | You should have received a copy of the GNU General Public License | |
23 | along with GAS; see the file COPYING. If not, write to the Free | |
24 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
25 | 02111-1307, USA. */ | |
26 | ||
27 | /* | |
28 | * Mach Operating System | |
29 | * Copyright (c) 1993 Carnegie Mellon University | |
30 | * All Rights Reserved. | |
31 | * | |
32 | * Permission to use, copy, modify and distribute this software and its | |
33 | * documentation is hereby granted, provided that both the copyright | |
34 | * notice and this permission notice appear in all copies of the | |
35 | * software, derivative works or modified versions, and any portions | |
36 | * thereof, and that both notices appear in supporting documentation. | |
37 | * | |
38 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS | |
39 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR | |
40 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. | |
41 | * | |
42 | * Carnegie Mellon requests users of this software to return to | |
43 | * | |
44 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU | |
45 | * School of Computer Science | |
46 | * Carnegie Mellon University | |
47 | * Pittsburgh PA 15213-3890 | |
48 | * | |
49 | * any improvements or extensions that they make and grant Carnegie the | |
50 | * rights to redistribute these changes. | |
51 | */ | |
52 | ||
53 | #include "as.h" | |
54 | #include "subsegs.h" | |
43b4c25e | 55 | #include "struc-symbol.h" |
252b5132 RH |
56 | #include "ecoff.h" |
57 | ||
58 | #include "opcode/alpha.h" | |
59 | ||
60 | #ifdef OBJ_ELF | |
61 | #include "elf/alpha.h" | |
4dc7ead9 | 62 | #include "dwarf2dbg.h" |
252b5132 RH |
63 | #endif |
64 | ||
3882b010 | 65 | #include "safe-ctype.h" |
252b5132 | 66 | \f |
11f45fb5 | 67 | /* Local types. */ |
252b5132 | 68 | |
43b4c25e MM |
69 | #define TOKENIZE_ERROR -1 |
70 | #define TOKENIZE_ERROR_REPORT -2 | |
71 | ||
252b5132 RH |
72 | #define MAX_INSN_FIXUPS 2 |
73 | #define MAX_INSN_ARGS 5 | |
74 | ||
11f45fb5 NC |
75 | struct alpha_fixup |
76 | { | |
252b5132 RH |
77 | expressionS exp; |
78 | bfd_reloc_code_real_type reloc; | |
79 | }; | |
80 | ||
11f45fb5 NC |
81 | struct alpha_insn |
82 | { | |
252b5132 RH |
83 | unsigned insn; |
84 | int nfixups; | |
85 | struct alpha_fixup fixups[MAX_INSN_FIXUPS]; | |
19f78583 | 86 | long sequence; |
252b5132 RH |
87 | }; |
88 | ||
11f45fb5 NC |
89 | enum alpha_macro_arg |
90 | { | |
91 | MACRO_EOA = 1, | |
92 | MACRO_IR, | |
93 | MACRO_PIR, | |
94 | MACRO_OPIR, | |
95 | MACRO_CPIR, | |
96 | MACRO_FPR, | |
97 | MACRO_EXP, | |
98 | }; | |
252b5132 | 99 | |
11f45fb5 NC |
100 | struct alpha_macro |
101 | { | |
252b5132 RH |
102 | const char *name; |
103 | void (*emit) PARAMS ((const expressionS *, int, const PTR)); | |
104 | const PTR arg; | |
105 | enum alpha_macro_arg argsets[16]; | |
106 | }; | |
107 | ||
1dab94dd | 108 | /* Extra expression types. */ |
252b5132 | 109 | |
446a06c9 MM |
110 | #define O_pregister O_md1 /* O_register, in parentheses */ |
111 | #define O_cpregister O_md2 /* + a leading comma */ | |
252b5132 | 112 | |
3765b1be | 113 | /* The alpha_reloc_op table below depends on the ordering of these. */ |
43b4c25e | 114 | #define O_literal O_md3 /* !literal relocation */ |
19f78583 RH |
115 | #define O_lituse_addr O_md4 /* !lituse_addr relocation */ |
116 | #define O_lituse_base O_md5 /* !lituse_base relocation */ | |
117 | #define O_lituse_bytoff O_md6 /* !lituse_bytoff relocation */ | |
118 | #define O_lituse_jsr O_md7 /* !lituse_jsr relocation */ | |
3765b1be RH |
119 | #define O_lituse_tlsgd O_md8 /* !lituse_tlsgd relocation */ |
120 | #define O_lituse_tlsldm O_md9 /* !lituse_tlsldm relocation */ | |
121 | #define O_gpdisp O_md10 /* !gpdisp relocation */ | |
122 | #define O_gprelhigh O_md11 /* !gprelhigh relocation */ | |
123 | #define O_gprellow O_md12 /* !gprellow relocation */ | |
124 | #define O_gprel O_md13 /* !gprel relocation */ | |
125 | #define O_samegp O_md14 /* !samegp relocation */ | |
126 | #define O_tlsgd O_md15 /* !tlsgd relocation */ | |
127 | #define O_tlsldm O_md16 /* !tlsldm relocation */ | |
128 | #define O_gotdtprel O_md17 /* !gotdtprel relocation */ | |
129 | #define O_dtprelhi O_md18 /* !dtprelhi relocation */ | |
130 | #define O_dtprello O_md19 /* !dtprello relocation */ | |
131 | #define O_dtprel O_md20 /* !dtprel relocation */ | |
132 | #define O_gottprel O_md21 /* !gottprel relocation */ | |
133 | #define O_tprelhi O_md22 /* !tprelhi relocation */ | |
134 | #define O_tprello O_md23 /* !tprello relocation */ | |
135 | #define O_tprel O_md24 /* !tprel relocation */ | |
19f78583 RH |
136 | |
137 | #define DUMMY_RELOC_LITUSE_ADDR (BFD_RELOC_UNUSED + 1) | |
138 | #define DUMMY_RELOC_LITUSE_BASE (BFD_RELOC_UNUSED + 2) | |
139 | #define DUMMY_RELOC_LITUSE_BYTOFF (BFD_RELOC_UNUSED + 3) | |
140 | #define DUMMY_RELOC_LITUSE_JSR (BFD_RELOC_UNUSED + 4) | |
3765b1be RH |
141 | #define DUMMY_RELOC_LITUSE_TLSGD (BFD_RELOC_UNUSED + 5) |
142 | #define DUMMY_RELOC_LITUSE_TLSLDM (BFD_RELOC_UNUSED + 6) | |
19f78583 | 143 | |
3765b1be | 144 | #define USER_RELOC_P(R) ((R) >= O_literal && (R) <= O_tprel) |
43b4c25e | 145 | |
11f45fb5 | 146 | /* Macros for extracting the type and number of encoded register tokens. */ |
252b5132 RH |
147 | |
148 | #define is_ir_num(x) (((x) & 32) == 0) | |
149 | #define is_fpr_num(x) (((x) & 32) != 0) | |
150 | #define regno(x) ((x) & 31) | |
151 | ||
11f45fb5 | 152 | /* Something odd inherited from the old assembler. */ |
252b5132 RH |
153 | |
154 | #define note_gpreg(R) (alpha_gprmask |= (1 << (R))) | |
155 | #define note_fpreg(R) (alpha_fprmask |= (1 << (R))) | |
156 | ||
157 | /* Predicates for 16- and 32-bit ranges */ | |
158 | /* XXX: The non-shift version appears to trigger a compiler bug when | |
159 | cross-assembling from x86 w/ gcc 2.7.2. */ | |
160 | ||
161 | #if 1 | |
162 | #define range_signed_16(x) \ | |
bc805888 | 163 | (((offsetT) (x) >> 15) == 0 || ((offsetT) (x) >> 15) == -1) |
252b5132 | 164 | #define range_signed_32(x) \ |
bc805888 | 165 | (((offsetT) (x) >> 31) == 0 || ((offsetT) (x) >> 31) == -1) |
252b5132 | 166 | #else |
32ff5c2e KH |
167 | #define range_signed_16(x) ((offsetT) (x) >= -(offsetT) 0x8000 && \ |
168 | (offsetT) (x) <= (offsetT) 0x7FFF) | |
169 | #define range_signed_32(x) ((offsetT) (x) >= -(offsetT) 0x80000000 && \ | |
170 | (offsetT) (x) <= (offsetT) 0x7FFFFFFF) | |
252b5132 RH |
171 | #endif |
172 | ||
173 | /* Macros for sign extending from 16- and 32-bits. */ | |
174 | /* XXX: The cast macros will work on all the systems that I care about, | |
175 | but really a predicate should be found to use the non-cast forms. */ | |
176 | ||
177 | #if 1 | |
bc805888 KH |
178 | #define sign_extend_16(x) ((short) (x)) |
179 | #define sign_extend_32(x) ((int) (x)) | |
252b5132 | 180 | #else |
bc805888 KH |
181 | #define sign_extend_16(x) ((offsetT) (((x) & 0xFFFF) ^ 0x8000) - 0x8000) |
182 | #define sign_extend_32(x) ((offsetT) (((x) & 0xFFFFFFFF) \ | |
252b5132 RH |
183 | ^ 0x80000000) - 0x80000000) |
184 | #endif | |
185 | ||
11f45fb5 | 186 | /* Macros to build tokens. */ |
252b5132 | 187 | |
32ff5c2e | 188 | #define set_tok_reg(t, r) (memset (&(t), 0, sizeof (t)), \ |
252b5132 RH |
189 | (t).X_op = O_register, \ |
190 | (t).X_add_number = (r)) | |
32ff5c2e | 191 | #define set_tok_preg(t, r) (memset (&(t), 0, sizeof (t)), \ |
252b5132 RH |
192 | (t).X_op = O_pregister, \ |
193 | (t).X_add_number = (r)) | |
32ff5c2e | 194 | #define set_tok_cpreg(t, r) (memset (&(t), 0, sizeof (t)), \ |
252b5132 RH |
195 | (t).X_op = O_cpregister, \ |
196 | (t).X_add_number = (r)) | |
32ff5c2e | 197 | #define set_tok_freg(t, r) (memset (&(t), 0, sizeof (t)), \ |
252b5132 | 198 | (t).X_op = O_register, \ |
66498417 | 199 | (t).X_add_number = (r) + 32) |
32ff5c2e | 200 | #define set_tok_sym(t, s, a) (memset (&(t), 0, sizeof (t)), \ |
252b5132 RH |
201 | (t).X_op = O_symbol, \ |
202 | (t).X_add_symbol = (s), \ | |
203 | (t).X_add_number = (a)) | |
32ff5c2e | 204 | #define set_tok_const(t, n) (memset (&(t), 0, sizeof (t)), \ |
252b5132 RH |
205 | (t).X_op = O_constant, \ |
206 | (t).X_add_number = (n)) | |
252b5132 | 207 | \f |
11f45fb5 | 208 | /* Prototypes for all local functions. */ |
252b5132 | 209 | |
19f78583 | 210 | static struct alpha_reloc_tag *get_alpha_reloc_tag PARAMS ((long)); |
a161fe53 | 211 | static void alpha_adjust_relocs PARAMS ((bfd *, asection *, PTR)); |
19f78583 | 212 | |
252b5132 RH |
213 | static int tokenize_arguments PARAMS ((char *, expressionS *, int)); |
214 | static const struct alpha_opcode *find_opcode_match | |
215 | PARAMS ((const struct alpha_opcode *, const expressionS *, int *, int *)); | |
216 | static const struct alpha_macro *find_macro_match | |
217 | PARAMS ((const struct alpha_macro *, const expressionS *, int *)); | |
218 | static unsigned insert_operand | |
219 | PARAMS ((unsigned, const struct alpha_operand *, offsetT, char *, unsigned)); | |
220 | static void assemble_insn | |
221 | PARAMS ((const struct alpha_opcode *, const expressionS *, int, | |
19f78583 | 222 | struct alpha_insn *, bfd_reloc_code_real_type)); |
252b5132 RH |
223 | static void emit_insn PARAMS ((struct alpha_insn *)); |
224 | static void assemble_tokens_to_insn | |
225 | PARAMS ((const char *, const expressionS *, int, struct alpha_insn *)); | |
226 | static void assemble_tokens | |
227 | PARAMS ((const char *, const expressionS *, int, int)); | |
228 | ||
19f78583 RH |
229 | static long load_expression |
230 | PARAMS ((int, const expressionS *, int *, expressionS *)); | |
252b5132 RH |
231 | |
232 | static void emit_ldgp PARAMS ((const expressionS *, int, const PTR)); | |
233 | static void emit_division PARAMS ((const expressionS *, int, const PTR)); | |
234 | static void emit_lda PARAMS ((const expressionS *, int, const PTR)); | |
235 | static void emit_ldah PARAMS ((const expressionS *, int, const PTR)); | |
236 | static void emit_ir_load PARAMS ((const expressionS *, int, const PTR)); | |
237 | static void emit_loadstore PARAMS ((const expressionS *, int, const PTR)); | |
238 | static void emit_jsrjmp PARAMS ((const expressionS *, int, const PTR)); | |
239 | static void emit_ldX PARAMS ((const expressionS *, int, const PTR)); | |
240 | static void emit_ldXu PARAMS ((const expressionS *, int, const PTR)); | |
241 | static void emit_uldX PARAMS ((const expressionS *, int, const PTR)); | |
242 | static void emit_uldXu PARAMS ((const expressionS *, int, const PTR)); | |
243 | static void emit_ldil PARAMS ((const expressionS *, int, const PTR)); | |
244 | static void emit_stX PARAMS ((const expressionS *, int, const PTR)); | |
245 | static void emit_ustX PARAMS ((const expressionS *, int, const PTR)); | |
246 | static void emit_sextX PARAMS ((const expressionS *, int, const PTR)); | |
247 | static void emit_retjcr PARAMS ((const expressionS *, int, const PTR)); | |
248 | ||
249 | static void s_alpha_text PARAMS ((int)); | |
250 | static void s_alpha_data PARAMS ((int)); | |
251 | #ifndef OBJ_ELF | |
252 | static void s_alpha_comm PARAMS ((int)); | |
253 | static void s_alpha_rdata PARAMS ((int)); | |
254 | #endif | |
255 | #ifdef OBJ_ECOFF | |
256 | static void s_alpha_sdata PARAMS ((int)); | |
257 | #endif | |
258 | #ifdef OBJ_ELF | |
259 | static void s_alpha_section PARAMS ((int)); | |
260 | static void s_alpha_ent PARAMS ((int)); | |
261 | static void s_alpha_end PARAMS ((int)); | |
262 | static void s_alpha_mask PARAMS ((int)); | |
263 | static void s_alpha_frame PARAMS ((int)); | |
264 | static void s_alpha_prologue PARAMS ((int)); | |
4dc7ead9 RH |
265 | static void s_alpha_file PARAMS ((int)); |
266 | static void s_alpha_loc PARAMS ((int)); | |
a8316fe2 | 267 | static void s_alpha_stab PARAMS ((int)); |
252b5132 RH |
268 | static void s_alpha_coff_wrapper PARAMS ((int)); |
269 | #endif | |
270 | #ifdef OBJ_EVAX | |
271 | static void s_alpha_section PARAMS ((int)); | |
272 | #endif | |
273 | static void s_alpha_gprel32 PARAMS ((int)); | |
274 | static void s_alpha_float_cons PARAMS ((int)); | |
275 | static void s_alpha_proc PARAMS ((int)); | |
276 | static void s_alpha_set PARAMS ((int)); | |
277 | static void s_alpha_base PARAMS ((int)); | |
278 | static void s_alpha_align PARAMS ((int)); | |
279 | static void s_alpha_stringer PARAMS ((int)); | |
280 | static void s_alpha_space PARAMS ((int)); | |
19f78583 RH |
281 | static void s_alpha_ucons PARAMS ((int)); |
282 | static void s_alpha_arch PARAMS ((int)); | |
252b5132 RH |
283 | |
284 | static void create_literal_section PARAMS ((const char *, segT *, symbolS **)); | |
285 | #ifndef OBJ_ELF | |
286 | static void select_gp_value PARAMS ((void)); | |
287 | #endif | |
288 | static void alpha_align PARAMS ((int, char *, symbolS *, int)); | |
252b5132 RH |
289 | \f |
290 | /* Generic assembler global variables which must be defined by all | |
291 | targets. */ | |
292 | ||
293 | /* Characters which always start a comment. */ | |
294 | const char comment_chars[] = "#"; | |
295 | ||
296 | /* Characters which start a comment at the beginning of a line. */ | |
297 | const char line_comment_chars[] = "#"; | |
298 | ||
299 | /* Characters which may be used to separate multiple commands on a | |
300 | single line. */ | |
301 | const char line_separator_chars[] = ";"; | |
302 | ||
303 | /* Characters which are used to indicate an exponent in a floating | |
304 | point number. */ | |
305 | const char EXP_CHARS[] = "eE"; | |
306 | ||
307 | /* Characters which mean that a number is a floating point constant, | |
308 | as in 0d1.0. */ | |
309 | #if 0 | |
310 | const char FLT_CHARS[] = "dD"; | |
311 | #else | |
312 | /* XXX: Do all of these really get used on the alpha?? */ | |
313 | char FLT_CHARS[] = "rRsSfFdDxXpP"; | |
314 | #endif | |
315 | ||
316 | #ifdef OBJ_EVAX | |
317 | const char *md_shortopts = "Fm:g+1h:HG:"; | |
318 | #else | |
319 | const char *md_shortopts = "Fm:gG:"; | |
320 | #endif | |
321 | ||
11f45fb5 NC |
322 | struct option md_longopts[] = |
323 | { | |
252b5132 | 324 | #define OPTION_32ADDR (OPTION_MD_BASE) |
11f45fb5 | 325 | { "32addr", no_argument, NULL, OPTION_32ADDR }, |
66498417 | 326 | #define OPTION_RELAX (OPTION_32ADDR + 1) |
11f45fb5 | 327 | { "relax", no_argument, NULL, OPTION_RELAX }, |
252b5132 | 328 | #ifdef OBJ_ELF |
66498417 KH |
329 | #define OPTION_MDEBUG (OPTION_RELAX + 1) |
330 | #define OPTION_NO_MDEBUG (OPTION_MDEBUG + 1) | |
11f45fb5 NC |
331 | { "mdebug", no_argument, NULL, OPTION_MDEBUG }, |
332 | { "no-mdebug", no_argument, NULL, OPTION_NO_MDEBUG }, | |
252b5132 | 333 | #endif |
11f45fb5 NC |
334 | { NULL, no_argument, NULL, 0 } |
335 | }; | |
252b5132 | 336 | |
bc805888 | 337 | size_t md_longopts_size = sizeof (md_longopts); |
252b5132 RH |
338 | \f |
339 | #ifdef OBJ_EVAX | |
340 | #define AXP_REG_R0 0 | |
341 | #define AXP_REG_R16 16 | |
342 | #define AXP_REG_R17 17 | |
343 | #undef AXP_REG_T9 | |
344 | #define AXP_REG_T9 22 | |
345 | #undef AXP_REG_T10 | |
346 | #define AXP_REG_T10 23 | |
347 | #undef AXP_REG_T11 | |
348 | #define AXP_REG_T11 24 | |
349 | #undef AXP_REG_T12 | |
350 | #define AXP_REG_T12 25 | |
351 | #define AXP_REG_AI 25 | |
352 | #undef AXP_REG_FP | |
353 | #define AXP_REG_FP 29 | |
354 | ||
355 | #undef AXP_REG_GP | |
356 | #define AXP_REG_GP AXP_REG_PV | |
357 | #endif /* OBJ_EVAX */ | |
358 | ||
11f45fb5 | 359 | /* The cpu for which we are generating code. */ |
252b5132 RH |
360 | static unsigned alpha_target = AXP_OPCODE_BASE; |
361 | static const char *alpha_target_name = "<all>"; | |
362 | ||
11f45fb5 | 363 | /* The hash table of instruction opcodes. */ |
252b5132 RH |
364 | static struct hash_control *alpha_opcode_hash; |
365 | ||
11f45fb5 | 366 | /* The hash table of macro opcodes. */ |
252b5132 RH |
367 | static struct hash_control *alpha_macro_hash; |
368 | ||
369 | #ifdef OBJ_ECOFF | |
11f45fb5 | 370 | /* The $gp relocation symbol. */ |
252b5132 RH |
371 | static symbolS *alpha_gp_symbol; |
372 | ||
373 | /* XXX: what is this, and why is it exported? */ | |
374 | valueT alpha_gp_value; | |
375 | #endif | |
376 | ||
11f45fb5 | 377 | /* The current $gp register. */ |
252b5132 RH |
378 | static int alpha_gp_register = AXP_REG_GP; |
379 | ||
11f45fb5 | 380 | /* A table of the register symbols. */ |
252b5132 RH |
381 | static symbolS *alpha_register_table[64]; |
382 | ||
11f45fb5 | 383 | /* Constant sections, or sections of constants. */ |
252b5132 RH |
384 | #ifdef OBJ_ECOFF |
385 | static segT alpha_lita_section; | |
252b5132 RH |
386 | #endif |
387 | #ifdef OBJ_EVAX | |
388 | static segT alpha_link_section; | |
389 | static segT alpha_ctors_section; | |
390 | static segT alpha_dtors_section; | |
391 | #endif | |
392 | static segT alpha_lit8_section; | |
393 | ||
1dab94dd | 394 | /* Symbols referring to said sections. */ |
252b5132 RH |
395 | #ifdef OBJ_ECOFF |
396 | static symbolS *alpha_lita_symbol; | |
252b5132 RH |
397 | #endif |
398 | #ifdef OBJ_EVAX | |
399 | static symbolS *alpha_link_symbol; | |
400 | static symbolS *alpha_ctors_symbol; | |
401 | static symbolS *alpha_dtors_symbol; | |
402 | #endif | |
403 | static symbolS *alpha_lit8_symbol; | |
404 | ||
11f45fb5 | 405 | /* Literal for .litX+0x8000 within .lita. */ |
252b5132 | 406 | #ifdef OBJ_ECOFF |
252b5132 RH |
407 | static offsetT alpha_lit8_literal; |
408 | #endif | |
409 | ||
252b5132 | 410 | #ifdef OBJ_ELF |
4dc7ead9 | 411 | /* The active .ent symbol. */ |
252b5132 RH |
412 | static symbolS *alpha_cur_ent_sym; |
413 | #endif | |
414 | ||
11f45fb5 | 415 | /* Is the assembler not allowed to use $at? */ |
252b5132 RH |
416 | static int alpha_noat_on = 0; |
417 | ||
11f45fb5 | 418 | /* Are macros enabled? */ |
252b5132 RH |
419 | static int alpha_macros_on = 1; |
420 | ||
11f45fb5 | 421 | /* Are floats disabled? */ |
252b5132 RH |
422 | static int alpha_nofloats_on = 0; |
423 | ||
11f45fb5 | 424 | /* Are addresses 32 bit? */ |
252b5132 RH |
425 | static int alpha_addr32_on = 0; |
426 | ||
427 | /* Symbol labelling the current insn. When the Alpha gas sees | |
428 | foo: | |
429 | .quad 0 | |
430 | and the section happens to not be on an eight byte boundary, it | |
431 | will align both the symbol and the .quad to an eight byte boundary. */ | |
432 | static symbolS *alpha_insn_label; | |
433 | ||
434 | /* Whether we should automatically align data generation pseudo-ops. | |
435 | .align 0 will turn this off. */ | |
436 | static int alpha_auto_align_on = 1; | |
437 | ||
438 | /* The known current alignment of the current section. */ | |
439 | static int alpha_current_align; | |
440 | ||
441 | /* These are exported to ECOFF code. */ | |
442 | unsigned long alpha_gprmask, alpha_fprmask; | |
443 | ||
444 | /* Whether the debugging option was seen. */ | |
445 | static int alpha_debug; | |
446 | ||
447 | #ifdef OBJ_ELF | |
448 | /* Whether we are emitting an mdebug section. */ | |
a8316fe2 | 449 | int alpha_flag_mdebug = -1; |
252b5132 RH |
450 | #endif |
451 | ||
452 | /* Don't fully resolve relocations, allowing code movement in the linker. */ | |
453 | static int alpha_flag_relax; | |
454 | ||
455 | /* What value to give to bfd_set_gp_size. */ | |
456 | static int g_switch_value = 8; | |
457 | ||
458 | #ifdef OBJ_EVAX | |
459 | /* Collect information about current procedure here. */ | |
460 | static struct { | |
461 | symbolS *symbol; /* proc pdesc symbol */ | |
462 | int pdsckind; | |
463 | int framereg; /* register for frame pointer */ | |
464 | int framesize; /* size of frame */ | |
465 | int rsa_offset; | |
466 | int ra_save; | |
467 | int fp_save; | |
468 | long imask; | |
469 | long fmask; | |
470 | int type; | |
471 | int prologue; | |
472 | } alpha_evax_proc; | |
473 | ||
474 | static int alpha_flag_hash_long_names = 0; /* -+ */ | |
475 | static int alpha_flag_show_after_trunc = 0; /* -H */ | |
476 | ||
477 | /* If the -+ switch is given, then a hash is appended to any name that is | |
11f45fb5 | 478 | longer than 64 characters, else longer symbol names are truncated. */ |
252b5132 | 479 | |
43b4c25e MM |
480 | #endif |
481 | \f | |
482 | #ifdef RELOC_OP_P | |
483 | /* A table to map the spelling of a relocation operand into an appropriate | |
484 | bfd_reloc_code_real_type type. The table is assumed to be ordered such | |
485 | that op-O_literal indexes into it. */ | |
486 | ||
487 | #define ALPHA_RELOC_TABLE(op) \ | |
19f78583 | 488 | (&alpha_reloc_op[ ((!USER_RELOC_P (op)) \ |
43b4c25e | 489 | ? (abort (), 0) \ |
19f78583 | 490 | : (int) (op) - (int) O_literal) ]) |
43b4c25e | 491 | |
ec8fcf4a RH |
492 | #define DEF(NAME, RELOC, REQ, ALLOW) \ |
493 | { #NAME, sizeof(#NAME)-1, O_##NAME, RELOC, REQ, ALLOW} | |
43b4c25e | 494 | |
11f45fb5 NC |
495 | static const struct alpha_reloc_op_tag |
496 | { | |
43b4c25e MM |
497 | const char *name; /* string to lookup */ |
498 | size_t length; /* size of the string */ | |
43b4c25e | 499 | operatorT op; /* which operator to use */ |
19f78583 | 500 | bfd_reloc_code_real_type reloc; /* relocation before frob */ |
ec8fcf4a RH |
501 | unsigned int require_seq : 1; /* require a sequence number */ |
502 | unsigned int allow_seq : 1; /* allow a sequence number */ | |
11f45fb5 NC |
503 | } |
504 | alpha_reloc_op[] = | |
505 | { | |
ec8fcf4a RH |
506 | DEF(literal, BFD_RELOC_ALPHA_ELF_LITERAL, 0, 1), |
507 | DEF(lituse_addr, DUMMY_RELOC_LITUSE_ADDR, 1, 1), | |
508 | DEF(lituse_base, DUMMY_RELOC_LITUSE_BASE, 1, 1), | |
509 | DEF(lituse_bytoff, DUMMY_RELOC_LITUSE_BYTOFF, 1, 1), | |
510 | DEF(lituse_jsr, DUMMY_RELOC_LITUSE_JSR, 1, 1), | |
3765b1be RH |
511 | DEF(lituse_tlsgd, DUMMY_RELOC_LITUSE_TLSGD, 1, 1), |
512 | DEF(lituse_tlsldm, DUMMY_RELOC_LITUSE_TLSLDM, 1, 1), | |
ec8fcf4a RH |
513 | DEF(gpdisp, BFD_RELOC_ALPHA_GPDISP, 1, 1), |
514 | DEF(gprelhigh, BFD_RELOC_ALPHA_GPREL_HI16, 0, 0), | |
515 | DEF(gprellow, BFD_RELOC_ALPHA_GPREL_LO16, 0, 0), | |
543833df | 516 | DEF(gprel, BFD_RELOC_GPREL16, 0, 0), |
3765b1be RH |
517 | DEF(samegp, BFD_RELOC_ALPHA_BRSGP, 0, 0), |
518 | DEF(tlsgd, BFD_RELOC_ALPHA_TLSGD, 0, 1), | |
519 | DEF(tlsldm, BFD_RELOC_ALPHA_TLSLDM, 0, 1), | |
520 | DEF(gotdtprel, BFD_RELOC_ALPHA_GOTDTPREL16, 0, 0), | |
521 | DEF(dtprelhi, BFD_RELOC_ALPHA_DTPREL_HI16, 0, 0), | |
522 | DEF(dtprello, BFD_RELOC_ALPHA_DTPREL_LO16, 0, 0), | |
523 | DEF(dtprel, BFD_RELOC_ALPHA_DTPREL16, 0, 0), | |
524 | DEF(gottprel, BFD_RELOC_ALPHA_GOTTPREL16, 0, 0), | |
525 | DEF(tprelhi, BFD_RELOC_ALPHA_TPREL_HI16, 0, 0), | |
526 | DEF(tprello, BFD_RELOC_ALPHA_TPREL_LO16, 0, 0), | |
527 | DEF(tprel, BFD_RELOC_ALPHA_TPREL16, 0, 0), | |
43b4c25e MM |
528 | }; |
529 | ||
19f78583 RH |
530 | #undef DEF |
531 | ||
43b4c25e | 532 | static const int alpha_num_reloc_op |
bc805888 | 533 | = sizeof (alpha_reloc_op) / sizeof (*alpha_reloc_op); |
19f78583 | 534 | #endif /* RELOC_OP_P */ |
43b4c25e MM |
535 | |
536 | /* Maximum # digits needed to hold the largest sequence # */ | |
537 | #define ALPHA_RELOC_DIGITS 25 | |
538 | ||
43b4c25e | 539 | /* Structure to hold explict sequence information. */ |
19f78583 | 540 | struct alpha_reloc_tag |
43b4c25e | 541 | { |
3765b1be RH |
542 | fixS *master; /* the literal reloc */ |
543 | fixS *slaves; /* head of linked list of lituses */ | |
43b4c25e | 544 | segT segment; /* segment relocs are in or undefined_section*/ |
19f78583 RH |
545 | long sequence; /* sequence # */ |
546 | unsigned n_master; /* # of literals */ | |
547 | unsigned n_slaves; /* # of lituses */ | |
3765b1be RH |
548 | unsigned saw_tlsgd : 1; /* true if ... */ |
549 | unsigned saw_tlsldm : 1; | |
550 | unsigned saw_lu_tlsgd : 1; | |
551 | unsigned saw_lu_tlsldm : 1; | |
552 | unsigned multi_section_p : 1; /* true if more than one section was used */ | |
43b4c25e MM |
553 | char string[1]; /* printable form of sequence to hash with */ |
554 | }; | |
555 | ||
556 | /* Hash table to link up literals with the appropriate lituse */ | |
557 | static struct hash_control *alpha_literal_hash; | |
19f78583 RH |
558 | |
559 | /* Sequence numbers for internal use by macros. */ | |
560 | static long next_sequence_num = -1; | |
252b5132 RH |
561 | \f |
562 | /* A table of CPU names and opcode sets. */ | |
563 | ||
11f45fb5 NC |
564 | static const struct cpu_type |
565 | { | |
252b5132 RH |
566 | const char *name; |
567 | unsigned flags; | |
11f45fb5 NC |
568 | } |
569 | cpu_types[] = | |
570 | { | |
252b5132 | 571 | /* Ad hoc convention: cpu number gets palcode, process code doesn't. |
1dab94dd | 572 | This supports usage under DU 4.0b that does ".arch ev4", and |
252b5132 RH |
573 | usage in MILO that does -m21064. Probably something more |
574 | specific like -m21064-pal should be used, but oh well. */ | |
575 | ||
576 | { "21064", AXP_OPCODE_BASE|AXP_OPCODE_EV4 }, | |
577 | { "21064a", AXP_OPCODE_BASE|AXP_OPCODE_EV4 }, | |
578 | { "21066", AXP_OPCODE_BASE|AXP_OPCODE_EV4 }, | |
579 | { "21068", AXP_OPCODE_BASE|AXP_OPCODE_EV4 }, | |
580 | { "21164", AXP_OPCODE_BASE|AXP_OPCODE_EV5 }, | |
581 | { "21164a", AXP_OPCODE_BASE|AXP_OPCODE_EV5|AXP_OPCODE_BWX }, | |
582 | { "21164pc", (AXP_OPCODE_BASE|AXP_OPCODE_EV5|AXP_OPCODE_BWX | |
583 | |AXP_OPCODE_MAX) }, | |
584 | { "21264", (AXP_OPCODE_BASE|AXP_OPCODE_EV6|AXP_OPCODE_BWX | |
585 | |AXP_OPCODE_MAX|AXP_OPCODE_CIX) }, | |
dbac4f5b RH |
586 | { "21264a", (AXP_OPCODE_BASE|AXP_OPCODE_EV6|AXP_OPCODE_BWX |
587 | |AXP_OPCODE_MAX|AXP_OPCODE_CIX) }, | |
588 | { "21264b", (AXP_OPCODE_BASE|AXP_OPCODE_EV6|AXP_OPCODE_BWX | |
589 | |AXP_OPCODE_MAX|AXP_OPCODE_CIX) }, | |
252b5132 RH |
590 | |
591 | { "ev4", AXP_OPCODE_BASE }, | |
592 | { "ev45", AXP_OPCODE_BASE }, | |
593 | { "lca45", AXP_OPCODE_BASE }, | |
594 | { "ev5", AXP_OPCODE_BASE }, | |
595 | { "ev56", AXP_OPCODE_BASE|AXP_OPCODE_BWX }, | |
596 | { "pca56", AXP_OPCODE_BASE|AXP_OPCODE_BWX|AXP_OPCODE_MAX }, | |
597 | { "ev6", AXP_OPCODE_BASE|AXP_OPCODE_BWX|AXP_OPCODE_MAX|AXP_OPCODE_CIX }, | |
dbac4f5b RH |
598 | { "ev67", AXP_OPCODE_BASE|AXP_OPCODE_BWX|AXP_OPCODE_MAX|AXP_OPCODE_CIX }, |
599 | { "ev68", AXP_OPCODE_BASE|AXP_OPCODE_BWX|AXP_OPCODE_MAX|AXP_OPCODE_CIX }, | |
252b5132 RH |
600 | |
601 | { "all", AXP_OPCODE_BASE }, | |
446a06c9 | 602 | { 0, 0 } |
252b5132 RH |
603 | }; |
604 | ||
605 | /* The macro table */ | |
606 | ||
11f45fb5 NC |
607 | static const struct alpha_macro alpha_macros[] = |
608 | { | |
252b5132 RH |
609 | /* Load/Store macros */ |
610 | { "lda", emit_lda, NULL, | |
19f78583 | 611 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 RH |
612 | { "ldah", emit_ldah, NULL, |
613 | { MACRO_IR, MACRO_EXP, MACRO_EOA } }, | |
614 | ||
615 | { "ldl", emit_ir_load, "ldl", | |
19f78583 | 616 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 617 | { "ldl_l", emit_ir_load, "ldl_l", |
19f78583 | 618 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 619 | { "ldq", emit_ir_load, "ldq", |
19f78583 | 620 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 621 | { "ldq_l", emit_ir_load, "ldq_l", |
19f78583 | 622 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 623 | { "ldq_u", emit_ir_load, "ldq_u", |
19f78583 | 624 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 625 | { "ldf", emit_loadstore, "ldf", |
19f78583 | 626 | { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 627 | { "ldg", emit_loadstore, "ldg", |
19f78583 | 628 | { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 629 | { "lds", emit_loadstore, "lds", |
19f78583 | 630 | { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 631 | { "ldt", emit_loadstore, "ldt", |
19f78583 | 632 | { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 633 | |
32ff5c2e | 634 | { "ldb", emit_ldX, (PTR) 0, |
19f78583 | 635 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 636 | { "ldbu", emit_ldXu, (PTR) 0, |
19f78583 | 637 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 638 | { "ldw", emit_ldX, (PTR) 1, |
19f78583 | 639 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 640 | { "ldwu", emit_ldXu, (PTR) 1, |
19f78583 | 641 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 642 | |
32ff5c2e | 643 | { "uldw", emit_uldX, (PTR) 1, |
19f78583 | 644 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 645 | { "uldwu", emit_uldXu, (PTR) 1, |
19f78583 | 646 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 647 | { "uldl", emit_uldX, (PTR) 2, |
19f78583 | 648 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 649 | { "uldlu", emit_uldXu, (PTR) 2, |
19f78583 | 650 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 651 | { "uldq", emit_uldXu, (PTR) 3, |
19f78583 | 652 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 RH |
653 | |
654 | { "ldgp", emit_ldgp, NULL, | |
655 | { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA } }, | |
656 | ||
657 | { "ldi", emit_lda, NULL, | |
658 | { MACRO_IR, MACRO_EXP, MACRO_EOA } }, | |
659 | { "ldil", emit_ldil, NULL, | |
660 | { MACRO_IR, MACRO_EXP, MACRO_EOA } }, | |
661 | { "ldiq", emit_lda, NULL, | |
662 | { MACRO_IR, MACRO_EXP, MACRO_EOA } }, | |
663 | #if 0 | |
664 | { "ldif" emit_ldiq, NULL, | |
665 | { MACRO_FPR, MACRO_EXP, MACRO_EOA } }, | |
666 | { "ldid" emit_ldiq, NULL, | |
667 | { MACRO_FPR, MACRO_EXP, MACRO_EOA } }, | |
668 | { "ldig" emit_ldiq, NULL, | |
669 | { MACRO_FPR, MACRO_EXP, MACRO_EOA } }, | |
670 | { "ldis" emit_ldiq, NULL, | |
671 | { MACRO_FPR, MACRO_EXP, MACRO_EOA } }, | |
672 | { "ldit" emit_ldiq, NULL, | |
673 | { MACRO_FPR, MACRO_EXP, MACRO_EOA } }, | |
674 | #endif | |
675 | ||
676 | { "stl", emit_loadstore, "stl", | |
19f78583 | 677 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 678 | { "stl_c", emit_loadstore, "stl_c", |
19f78583 | 679 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 680 | { "stq", emit_loadstore, "stq", |
19f78583 | 681 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 682 | { "stq_c", emit_loadstore, "stq_c", |
19f78583 | 683 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 684 | { "stq_u", emit_loadstore, "stq_u", |
19f78583 | 685 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 686 | { "stf", emit_loadstore, "stf", |
19f78583 | 687 | { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 688 | { "stg", emit_loadstore, "stg", |
19f78583 | 689 | { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 690 | { "sts", emit_loadstore, "sts", |
19f78583 | 691 | { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 692 | { "stt", emit_loadstore, "stt", |
19f78583 | 693 | { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 694 | |
32ff5c2e | 695 | { "stb", emit_stX, (PTR) 0, |
19f78583 | 696 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 697 | { "stw", emit_stX, (PTR) 1, |
19f78583 | 698 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 699 | { "ustw", emit_ustX, (PTR) 1, |
19f78583 | 700 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 701 | { "ustl", emit_ustX, (PTR) 2, |
19f78583 | 702 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 703 | { "ustq", emit_ustX, (PTR) 3, |
19f78583 | 704 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 RH |
705 | |
706 | /* Arithmetic macros */ | |
707 | #if 0 | |
708 | { "absl" emit_absl, 1, { IR } }, | |
709 | { "absl" emit_absl, 2, { IR, IR } }, | |
710 | { "absl" emit_absl, 2, { EXP, IR } }, | |
711 | { "absq" emit_absq, 1, { IR } }, | |
712 | { "absq" emit_absq, 2, { IR, IR } }, | |
713 | { "absq" emit_absq, 2, { EXP, IR } }, | |
714 | #endif | |
715 | ||
32ff5c2e | 716 | { "sextb", emit_sextX, (PTR) 0, |
252b5132 RH |
717 | { MACRO_IR, MACRO_IR, MACRO_EOA, |
718 | MACRO_IR, MACRO_EOA, | |
719 | /* MACRO_EXP, MACRO_IR, MACRO_EOA */ } }, | |
32ff5c2e | 720 | { "sextw", emit_sextX, (PTR) 1, |
252b5132 RH |
721 | { MACRO_IR, MACRO_IR, MACRO_EOA, |
722 | MACRO_IR, MACRO_EOA, | |
723 | /* MACRO_EXP, MACRO_IR, MACRO_EOA */ } }, | |
724 | ||
725 | { "divl", emit_division, "__divl", | |
726 | { MACRO_IR, MACRO_IR, MACRO_IR, MACRO_EOA, | |
727 | MACRO_IR, MACRO_IR, MACRO_EOA, | |
728 | /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA, | |
729 | MACRO_IR, MACRO_EXP, MACRO_EOA */ } }, | |
730 | { "divlu", emit_division, "__divlu", | |
731 | { MACRO_IR, MACRO_IR, MACRO_IR, MACRO_EOA, | |
732 | MACRO_IR, MACRO_IR, MACRO_EOA, | |
733 | /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA, | |
734 | MACRO_IR, MACRO_EXP, MACRO_EOA */ } }, | |
735 | { "divq", emit_division, "__divq", | |
736 | { MACRO_IR, MACRO_IR, MACRO_IR, MACRO_EOA, | |
737 | MACRO_IR, MACRO_IR, MACRO_EOA, | |
738 | /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA, | |
739 | MACRO_IR, MACRO_EXP, MACRO_EOA */ } }, | |
740 | { "divqu", emit_division, "__divqu", | |
741 | { MACRO_IR, MACRO_IR, MACRO_IR, MACRO_EOA, | |
742 | MACRO_IR, MACRO_IR, MACRO_EOA, | |
743 | /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA, | |
744 | MACRO_IR, MACRO_EXP, MACRO_EOA */ } }, | |
745 | { "reml", emit_division, "__reml", | |
746 | { MACRO_IR, MACRO_IR, MACRO_IR, MACRO_EOA, | |
747 | MACRO_IR, MACRO_IR, MACRO_EOA, | |
748 | /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA, | |
749 | MACRO_IR, MACRO_EXP, MACRO_EOA */ } }, | |
750 | { "remlu", emit_division, "__remlu", | |
751 | { MACRO_IR, MACRO_IR, MACRO_IR, MACRO_EOA, | |
752 | MACRO_IR, MACRO_IR, MACRO_EOA, | |
753 | /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA, | |
754 | MACRO_IR, MACRO_EXP, MACRO_EOA */ } }, | |
755 | { "remq", emit_division, "__remq", | |
756 | { MACRO_IR, MACRO_IR, MACRO_IR, MACRO_EOA, | |
757 | MACRO_IR, MACRO_IR, MACRO_EOA, | |
758 | /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA, | |
759 | MACRO_IR, MACRO_EXP, MACRO_EOA */ } }, | |
760 | { "remqu", emit_division, "__remqu", | |
761 | { MACRO_IR, MACRO_IR, MACRO_IR, MACRO_EOA, | |
762 | MACRO_IR, MACRO_IR, MACRO_EOA, | |
763 | /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA, | |
764 | MACRO_IR, MACRO_EXP, MACRO_EOA */ } }, | |
765 | ||
766 | { "jsr", emit_jsrjmp, "jsr", | |
19f78583 RH |
767 | { MACRO_PIR, MACRO_EXP, MACRO_EOA, |
768 | MACRO_PIR, MACRO_EOA, | |
769 | MACRO_IR, MACRO_EXP, MACRO_EOA, | |
770 | MACRO_EXP, MACRO_EOA } }, | |
252b5132 | 771 | { "jmp", emit_jsrjmp, "jmp", |
19f78583 RH |
772 | { MACRO_PIR, MACRO_EXP, MACRO_EOA, |
773 | MACRO_PIR, MACRO_EOA, | |
774 | MACRO_IR, MACRO_EXP, MACRO_EOA, | |
775 | MACRO_EXP, MACRO_EOA } }, | |
252b5132 RH |
776 | { "ret", emit_retjcr, "ret", |
777 | { MACRO_IR, MACRO_EXP, MACRO_EOA, | |
778 | MACRO_IR, MACRO_EOA, | |
779 | MACRO_PIR, MACRO_EXP, MACRO_EOA, | |
780 | MACRO_PIR, MACRO_EOA, | |
781 | MACRO_EXP, MACRO_EOA, | |
782 | MACRO_EOA } }, | |
783 | { "jcr", emit_retjcr, "jcr", | |
784 | { MACRO_IR, MACRO_EXP, MACRO_EOA, | |
785 | MACRO_IR, MACRO_EOA, | |
786 | MACRO_PIR, MACRO_EXP, MACRO_EOA, | |
787 | MACRO_PIR, MACRO_EOA, | |
788 | MACRO_EXP, MACRO_EOA, | |
789 | MACRO_EOA } }, | |
790 | { "jsr_coroutine", emit_retjcr, "jcr", | |
791 | { MACRO_IR, MACRO_EXP, MACRO_EOA, | |
792 | MACRO_IR, MACRO_EOA, | |
793 | MACRO_PIR, MACRO_EXP, MACRO_EOA, | |
794 | MACRO_PIR, MACRO_EOA, | |
795 | MACRO_EXP, MACRO_EOA, | |
796 | MACRO_EOA } }, | |
797 | }; | |
798 | ||
446a06c9 | 799 | static const unsigned int alpha_num_macros |
bc805888 | 800 | = sizeof (alpha_macros) / sizeof (*alpha_macros); |
252b5132 RH |
801 | \f |
802 | /* Public interface functions */ | |
803 | ||
804 | /* This function is called once, at assembler startup time. It sets | |
805 | up all the tables, etc. that the MD part of the assembler will | |
806 | need, that can be determined before arguments are parsed. */ | |
807 | ||
808 | void | |
809 | md_begin () | |
810 | { | |
811 | unsigned int i; | |
812 | ||
bf29b231 RH |
813 | /* Verify that X_op field is wide enough. */ |
814 | { | |
815 | expressionS e; | |
446a06c9 MM |
816 | e.X_op = O_max; |
817 | assert (e.X_op == O_max); | |
bf29b231 RH |
818 | } |
819 | ||
11f45fb5 | 820 | /* Create the opcode hash table. */ |
252b5132 | 821 | alpha_opcode_hash = hash_new (); |
66498417 | 822 | for (i = 0; i < alpha_num_opcodes;) |
252b5132 RH |
823 | { |
824 | const char *name, *retval, *slash; | |
825 | ||
826 | name = alpha_opcodes[i].name; | |
66498417 | 827 | retval = hash_insert (alpha_opcode_hash, name, (PTR) &alpha_opcodes[i]); |
252b5132 | 828 | if (retval) |
19f78583 RH |
829 | as_fatal (_("internal error: can't hash opcode `%s': %s"), |
830 | name, retval); | |
252b5132 RH |
831 | |
832 | /* Some opcodes include modifiers of various sorts with a "/mod" | |
833 | syntax, like the architecture manual suggests. However, for | |
834 | use with gcc at least, we also need access to those same opcodes | |
835 | without the "/". */ | |
836 | ||
837 | if ((slash = strchr (name, '/')) != NULL) | |
838 | { | |
839 | char *p = xmalloc (strlen (name)); | |
840 | memcpy (p, name, slash - name); | |
841 | strcpy (p + (slash - name), slash + 1); | |
842 | ||
66498417 | 843 | (void) hash_insert (alpha_opcode_hash, p, (PTR) &alpha_opcodes[i]); |
252b5132 RH |
844 | /* Ignore failures -- the opcode table does duplicate some |
845 | variants in different forms, like "hw_stq" and "hw_st/q". */ | |
846 | } | |
847 | ||
848 | while (++i < alpha_num_opcodes | |
849 | && (alpha_opcodes[i].name == name | |
850 | || !strcmp (alpha_opcodes[i].name, name))) | |
851 | continue; | |
852 | } | |
853 | ||
11f45fb5 | 854 | /* Create the macro hash table. */ |
252b5132 | 855 | alpha_macro_hash = hash_new (); |
66498417 | 856 | for (i = 0; i < alpha_num_macros;) |
252b5132 RH |
857 | { |
858 | const char *name, *retval; | |
859 | ||
860 | name = alpha_macros[i].name; | |
66498417 | 861 | retval = hash_insert (alpha_macro_hash, name, (PTR) &alpha_macros[i]); |
252b5132 | 862 | if (retval) |
66498417 KH |
863 | as_fatal (_("internal error: can't hash macro `%s': %s"), |
864 | name, retval); | |
252b5132 RH |
865 | |
866 | while (++i < alpha_num_macros | |
867 | && (alpha_macros[i].name == name | |
868 | || !strcmp (alpha_macros[i].name, name))) | |
869 | continue; | |
870 | } | |
871 | ||
11f45fb5 | 872 | /* Construct symbols for each of the registers. */ |
252b5132 RH |
873 | for (i = 0; i < 32; ++i) |
874 | { | |
875 | char name[4]; | |
11f45fb5 | 876 | |
bc805888 | 877 | sprintf (name, "$%d", i); |
32ff5c2e KH |
878 | alpha_register_table[i] = symbol_create (name, reg_section, i, |
879 | &zero_address_frag); | |
252b5132 RH |
880 | } |
881 | for (; i < 64; ++i) | |
882 | { | |
883 | char name[5]; | |
11f45fb5 | 884 | |
66498417 | 885 | sprintf (name, "$f%d", i - 32); |
32ff5c2e KH |
886 | alpha_register_table[i] = symbol_create (name, reg_section, i, |
887 | &zero_address_frag); | |
252b5132 RH |
888 | } |
889 | ||
11f45fb5 | 890 | /* Create the special symbols and sections we'll be using. */ |
252b5132 RH |
891 | |
892 | /* So .sbss will get used for tiny objects. */ | |
893 | bfd_set_gp_size (stdoutput, g_switch_value); | |
894 | ||
895 | #ifdef OBJ_ECOFF | |
896 | create_literal_section (".lita", &alpha_lita_section, &alpha_lita_symbol); | |
897 | ||
898 | /* For handling the GP, create a symbol that won't be output in the | |
899 | symbol table. We'll edit it out of relocs later. */ | |
900 | alpha_gp_symbol = symbol_create ("<GP value>", alpha_lita_section, 0x8000, | |
901 | &zero_address_frag); | |
902 | #endif | |
903 | ||
904 | #ifdef OBJ_EVAX | |
905 | create_literal_section (".link", &alpha_link_section, &alpha_link_symbol); | |
906 | #endif | |
907 | ||
908 | #ifdef OBJ_ELF | |
909 | if (ECOFF_DEBUGGING) | |
910 | { | |
32ff5c2e | 911 | segT sec = subseg_new (".mdebug", (subsegT) 0); |
66498417 | 912 | bfd_set_section_flags (stdoutput, sec, SEC_HAS_CONTENTS | SEC_READONLY); |
32ff5c2e | 913 | bfd_set_section_alignment (stdoutput, sec, 3); |
252b5132 RH |
914 | } |
915 | #endif /* OBJ_ELF */ | |
916 | ||
43b4c25e | 917 | /* Create literal lookup hash table. */ |
32ff5c2e | 918 | alpha_literal_hash = hash_new (); |
19f78583 RH |
919 | |
920 | subseg_set (text_section, 0); | |
252b5132 RH |
921 | } |
922 | ||
923 | /* The public interface to the instruction assembler. */ | |
924 | ||
925 | void | |
926 | md_assemble (str) | |
927 | char *str; | |
928 | { | |
11f45fb5 | 929 | char opname[32]; /* Current maximum is 13. */ |
252b5132 | 930 | expressionS tok[MAX_INSN_ARGS]; |
446a06c9 MM |
931 | int ntok, trunclen; |
932 | size_t opnamelen; | |
252b5132 | 933 | |
11f45fb5 | 934 | /* Split off the opcode. */ |
21b10511 | 935 | opnamelen = strspn (str, "abcdefghijklmnopqrstuvwxyz_/46819"); |
252b5132 RH |
936 | trunclen = (opnamelen < sizeof (opname) - 1 |
937 | ? opnamelen | |
938 | : sizeof (opname) - 1); | |
939 | memcpy (opname, str, trunclen); | |
940 | opname[trunclen] = '\0'; | |
941 | ||
11f45fb5 | 942 | /* Tokenize the rest of the line. */ |
252b5132 RH |
943 | if ((ntok = tokenize_arguments (str + opnamelen, tok, MAX_INSN_ARGS)) < 0) |
944 | { | |
43b4c25e MM |
945 | if (ntok != TOKENIZE_ERROR_REPORT) |
946 | as_bad (_("syntax error")); | |
947 | ||
252b5132 RH |
948 | return; |
949 | } | |
950 | ||
11f45fb5 | 951 | /* Finish it off. */ |
252b5132 RH |
952 | assemble_tokens (opname, tok, ntok, alpha_macros_on); |
953 | } | |
954 | ||
955 | /* Round up a section's size to the appropriate boundary. */ | |
956 | ||
957 | valueT | |
958 | md_section_align (seg, size) | |
959 | segT seg; | |
960 | valueT size; | |
961 | { | |
32ff5c2e KH |
962 | int align = bfd_get_section_alignment (stdoutput, seg); |
963 | valueT mask = ((valueT) 1 << align) - 1; | |
252b5132 RH |
964 | |
965 | return (size + mask) & ~mask; | |
966 | } | |
967 | ||
968 | /* Turn a string in input_line_pointer into a floating point constant | |
bc0d738a NC |
969 | of type TYPE, and store the appropriate bytes in *LITP. The number |
970 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
252b5132 RH |
971 | returned, or NULL on OK. */ |
972 | ||
11f45fb5 | 973 | /* Equal to MAX_PRECISION in atof-ieee.c. */ |
252b5132 RH |
974 | #define MAX_LITTLENUMS 6 |
975 | ||
976 | extern char *vax_md_atof PARAMS ((int, char *, int *)); | |
977 | ||
978 | char * | |
979 | md_atof (type, litP, sizeP) | |
980 | char type; | |
981 | char *litP; | |
982 | int *sizeP; | |
983 | { | |
984 | int prec; | |
985 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
986 | LITTLENUM_TYPE *wordP; | |
987 | char *t; | |
988 | ||
989 | switch (type) | |
990 | { | |
991 | /* VAX floats */ | |
992 | case 'G': | |
993 | /* VAX md_atof doesn't like "G" for some reason. */ | |
994 | type = 'g'; | |
995 | case 'F': | |
996 | case 'D': | |
997 | return vax_md_atof (type, litP, sizeP); | |
998 | ||
999 | /* IEEE floats */ | |
1000 | case 'f': | |
1001 | prec = 2; | |
1002 | break; | |
1003 | ||
1004 | case 'd': | |
1005 | prec = 4; | |
1006 | break; | |
1007 | ||
1008 | case 'x': | |
1009 | case 'X': | |
1010 | prec = 6; | |
1011 | break; | |
1012 | ||
1013 | case 'p': | |
1014 | case 'P': | |
1015 | prec = 6; | |
1016 | break; | |
1017 | ||
1018 | default: | |
1019 | *sizeP = 0; | |
1020 | return _("Bad call to MD_ATOF()"); | |
1021 | } | |
1022 | t = atof_ieee (input_line_pointer, type, words); | |
1023 | if (t) | |
1024 | input_line_pointer = t; | |
1025 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
1026 | ||
1027 | for (wordP = words + prec - 1; prec--;) | |
1028 | { | |
1029 | md_number_to_chars (litP, (long) (*wordP--), sizeof (LITTLENUM_TYPE)); | |
1030 | litP += sizeof (LITTLENUM_TYPE); | |
1031 | } | |
1032 | ||
1033 | return 0; | |
1034 | } | |
1035 | ||
1036 | /* Take care of the target-specific command-line options. */ | |
1037 | ||
1038 | int | |
1039 | md_parse_option (c, arg) | |
1040 | int c; | |
1041 | char *arg; | |
1042 | { | |
1043 | switch (c) | |
1044 | { | |
1045 | case 'F': | |
1046 | alpha_nofloats_on = 1; | |
1047 | break; | |
1048 | ||
1049 | case OPTION_32ADDR: | |
1050 | alpha_addr32_on = 1; | |
1051 | break; | |
1052 | ||
1053 | case 'g': | |
1054 | alpha_debug = 1; | |
1055 | break; | |
1056 | ||
1057 | case 'G': | |
32ff5c2e | 1058 | g_switch_value = atoi (arg); |
252b5132 RH |
1059 | break; |
1060 | ||
1061 | case 'm': | |
1062 | { | |
1063 | const struct cpu_type *p; | |
1064 | for (p = cpu_types; p->name; ++p) | |
32ff5c2e | 1065 | if (strcmp (arg, p->name) == 0) |
252b5132 RH |
1066 | { |
1067 | alpha_target_name = p->name, alpha_target = p->flags; | |
1068 | goto found; | |
1069 | } | |
32ff5c2e | 1070 | as_warn (_("Unknown CPU identifier `%s'"), arg); |
252b5132 RH |
1071 | found:; |
1072 | } | |
1073 | break; | |
1074 | ||
1075 | #ifdef OBJ_EVAX | |
1dab94dd | 1076 | case '+': /* For g++. Hash any name > 63 chars long. */ |
252b5132 RH |
1077 | alpha_flag_hash_long_names = 1; |
1078 | break; | |
1079 | ||
1080 | case 'H': /* Show new symbol after hash truncation */ | |
1081 | alpha_flag_show_after_trunc = 1; | |
1082 | break; | |
1083 | ||
1084 | case 'h': /* for gnu-c/vax compatibility. */ | |
1085 | break; | |
1086 | #endif | |
1087 | ||
1088 | case OPTION_RELAX: | |
1089 | alpha_flag_relax = 1; | |
1090 | break; | |
1091 | ||
1092 | #ifdef OBJ_ELF | |
1093 | case OPTION_MDEBUG: | |
1094 | alpha_flag_mdebug = 1; | |
1095 | break; | |
1096 | case OPTION_NO_MDEBUG: | |
1097 | alpha_flag_mdebug = 0; | |
1098 | break; | |
1099 | #endif | |
1100 | ||
1101 | default: | |
1102 | return 0; | |
1103 | } | |
1104 | ||
1105 | return 1; | |
1106 | } | |
1107 | ||
1108 | /* Print a description of the command-line options that we accept. */ | |
1109 | ||
1110 | void | |
1111 | md_show_usage (stream) | |
1112 | FILE *stream; | |
1113 | { | |
32ff5c2e | 1114 | fputs (_("\ |
252b5132 RH |
1115 | Alpha options:\n\ |
1116 | -32addr treat addresses as 32-bit values\n\ | |
1117 | -F lack floating point instructions support\n\ | |
dbac4f5b | 1118 | -mev4 | -mev45 | -mev5 | -mev56 | -mpca56 | -mev6 | -mev67 | -mev68 | -mall\n\ |
252b5132 | 1119 | specify variant of Alpha architecture\n\ |
dbac4f5b | 1120 | -m21064 | -m21066 | -m21164 | -m21164a | -m21164pc | -m21264 | -m21264a | -m21264b\n\ |
252b5132 RH |
1121 | these variants include PALcode opcodes\n"), |
1122 | stream); | |
1123 | #ifdef OBJ_EVAX | |
1124 | fputs (_("\ | |
1125 | VMS options:\n\ | |
1126 | -+ hash encode (don't truncate) names longer than 64 characters\n\ | |
1127 | -H show new symbol after hash truncation\n"), | |
1128 | stream); | |
1129 | #endif | |
1130 | } | |
1131 | ||
1132 | /* Decide from what point a pc-relative relocation is relative to, | |
1133 | relative to the pc-relative fixup. Er, relatively speaking. */ | |
1134 | ||
1135 | long | |
1136 | md_pcrel_from (fixP) | |
1137 | fixS *fixP; | |
1138 | { | |
1139 | valueT addr = fixP->fx_where + fixP->fx_frag->fr_address; | |
1140 | switch (fixP->fx_r_type) | |
1141 | { | |
021c2b5e RH |
1142 | case BFD_RELOC_23_PCREL_S2: |
1143 | case BFD_RELOC_ALPHA_HINT: | |
1144 | case BFD_RELOC_ALPHA_BRSGP: | |
1145 | return addr + 4; | |
252b5132 | 1146 | default: |
021c2b5e | 1147 | return addr; |
252b5132 RH |
1148 | } |
1149 | } | |
1150 | ||
1151 | /* Attempt to simplify or even eliminate a fixup. The return value is | |
1152 | ignored; perhaps it was once meaningful, but now it is historical. | |
1153 | To indicate that a fixup has been eliminated, set fixP->fx_done. | |
1154 | ||
1155 | For ELF, here it is that we transform the GPDISP_HI16 reloc we used | |
1156 | internally into the GPDISP reloc used externally. We had to do | |
1157 | this so that we'd have the GPDISP_LO16 reloc as a tag to compute | |
1158 | the distance to the "lda" instruction for setting the addend to | |
1159 | GPDISP. */ | |
1160 | ||
94f592af | 1161 | void |
5ce56ab9 | 1162 | md_apply_fix3 (fixP, valP, seg) |
252b5132 | 1163 | fixS *fixP; |
94f592af | 1164 | valueT * valP; |
ca3f7695 | 1165 | segT seg; |
252b5132 RH |
1166 | { |
1167 | char * const fixpos = fixP->fx_frag->fr_literal + fixP->fx_where; | |
94f592af | 1168 | valueT value = * valP; |
252b5132 RH |
1169 | unsigned image, size; |
1170 | ||
1171 | switch (fixP->fx_r_type) | |
1172 | { | |
1173 | /* The GPDISP relocations are processed internally with a symbol | |
a161fe53 AM |
1174 | referring to the current function's section; we need to drop |
1175 | in a value which, when added to the address of the start of | |
1176 | the function, gives the desired GP. */ | |
252b5132 RH |
1177 | case BFD_RELOC_ALPHA_GPDISP_HI16: |
1178 | { | |
1179 | fixS *next = fixP->fx_next; | |
252b5132 | 1180 | |
19f78583 RH |
1181 | /* With user-specified !gpdisp relocations, we can be missing |
1182 | the matching LO16 reloc. We will have already issued an | |
1183 | error message. */ | |
1184 | if (next) | |
1185 | fixP->fx_offset = (next->fx_frag->fr_address + next->fx_where | |
1186 | - fixP->fx_frag->fr_address - fixP->fx_where); | |
252b5132 RH |
1187 | |
1188 | value = (value - sign_extend_16 (value)) >> 16; | |
1189 | } | |
1190 | #ifdef OBJ_ELF | |
1191 | fixP->fx_r_type = BFD_RELOC_ALPHA_GPDISP; | |
1192 | #endif | |
1193 | goto do_reloc_gp; | |
1194 | ||
1195 | case BFD_RELOC_ALPHA_GPDISP_LO16: | |
1196 | value = sign_extend_16 (value); | |
1197 | fixP->fx_offset = 0; | |
1198 | #ifdef OBJ_ELF | |
1199 | fixP->fx_done = 1; | |
1200 | #endif | |
1201 | ||
1202 | do_reloc_gp: | |
ca3f7695 | 1203 | fixP->fx_addsy = section_symbol (seg); |
252b5132 RH |
1204 | md_number_to_chars (fixpos, value, 2); |
1205 | break; | |
1206 | ||
1207 | case BFD_RELOC_16: | |
1208 | if (fixP->fx_pcrel) | |
1209 | fixP->fx_r_type = BFD_RELOC_16_PCREL; | |
1210 | size = 2; | |
1211 | goto do_reloc_xx; | |
1212 | case BFD_RELOC_32: | |
1213 | if (fixP->fx_pcrel) | |
1214 | fixP->fx_r_type = BFD_RELOC_32_PCREL; | |
1215 | size = 4; | |
1216 | goto do_reloc_xx; | |
1217 | case BFD_RELOC_64: | |
1218 | if (fixP->fx_pcrel) | |
1219 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
1220 | size = 8; | |
1221 | do_reloc_xx: | |
1222 | if (fixP->fx_pcrel == 0 && fixP->fx_addsy == 0) | |
1223 | { | |
1224 | md_number_to_chars (fixpos, value, size); | |
1225 | goto done; | |
1226 | } | |
94f592af | 1227 | return; |
252b5132 RH |
1228 | |
1229 | #ifdef OBJ_ECOFF | |
1230 | case BFD_RELOC_GPREL32: | |
1231 | assert (fixP->fx_subsy == alpha_gp_symbol); | |
1232 | fixP->fx_subsy = 0; | |
1233 | /* FIXME: inherited this obliviousness of `value' -- why? */ | |
1234 | md_number_to_chars (fixpos, -alpha_gp_value, 4); | |
1235 | break; | |
19f78583 | 1236 | #else |
252b5132 | 1237 | case BFD_RELOC_GPREL32: |
252b5132 | 1238 | #endif |
19f78583 RH |
1239 | case BFD_RELOC_GPREL16: |
1240 | case BFD_RELOC_ALPHA_GPREL_HI16: | |
1241 | case BFD_RELOC_ALPHA_GPREL_LO16: | |
94f592af | 1242 | return; |
252b5132 RH |
1243 | |
1244 | case BFD_RELOC_23_PCREL_S2: | |
1245 | if (fixP->fx_pcrel == 0 && fixP->fx_addsy == 0) | |
1246 | { | |
32ff5c2e | 1247 | image = bfd_getl32 (fixpos); |
252b5132 RH |
1248 | image = (image & ~0x1FFFFF) | ((value >> 2) & 0x1FFFFF); |
1249 | goto write_done; | |
1250 | } | |
94f592af | 1251 | return; |
252b5132 RH |
1252 | |
1253 | case BFD_RELOC_ALPHA_HINT: | |
1254 | if (fixP->fx_pcrel == 0 && fixP->fx_addsy == 0) | |
1255 | { | |
32ff5c2e | 1256 | image = bfd_getl32 (fixpos); |
252b5132 RH |
1257 | image = (image & ~0x3FFF) | ((value >> 2) & 0x3FFF); |
1258 | goto write_done; | |
1259 | } | |
94f592af | 1260 | return; |
252b5132 | 1261 | |
543833df RH |
1262 | #ifdef OBJ_ELF |
1263 | case BFD_RELOC_ALPHA_BRSGP: | |
3765b1be RH |
1264 | case BFD_RELOC_ALPHA_TLSGD: |
1265 | case BFD_RELOC_ALPHA_TLSLDM: | |
1266 | case BFD_RELOC_ALPHA_GOTDTPREL16: | |
1267 | case BFD_RELOC_ALPHA_DTPREL_HI16: | |
1268 | case BFD_RELOC_ALPHA_DTPREL_LO16: | |
1269 | case BFD_RELOC_ALPHA_DTPREL16: | |
1270 | case BFD_RELOC_ALPHA_GOTTPREL16: | |
1271 | case BFD_RELOC_ALPHA_TPREL_HI16: | |
1272 | case BFD_RELOC_ALPHA_TPREL_LO16: | |
1273 | case BFD_RELOC_ALPHA_TPREL16: | |
543833df RH |
1274 | return; |
1275 | #endif | |
1276 | ||
252b5132 RH |
1277 | #ifdef OBJ_ECOFF |
1278 | case BFD_RELOC_ALPHA_LITERAL: | |
1279 | md_number_to_chars (fixpos, value, 2); | |
94f592af | 1280 | return; |
252b5132 | 1281 | #endif |
252b5132 RH |
1282 | case BFD_RELOC_ALPHA_ELF_LITERAL: |
1283 | case BFD_RELOC_ALPHA_LITUSE: | |
252b5132 RH |
1284 | case BFD_RELOC_ALPHA_LINKAGE: |
1285 | case BFD_RELOC_ALPHA_CODEADDR: | |
94f592af | 1286 | return; |
43b4c25e | 1287 | |
b96ed59a PB |
1288 | case BFD_RELOC_VTABLE_INHERIT: |
1289 | case BFD_RELOC_VTABLE_ENTRY: | |
94f592af | 1290 | return; |
b96ed59a | 1291 | |
252b5132 RH |
1292 | default: |
1293 | { | |
1294 | const struct alpha_operand *operand; | |
1295 | ||
32ff5c2e | 1296 | if ((int) fixP->fx_r_type >= 0) |
252b5132 RH |
1297 | as_fatal (_("unhandled relocation type %s"), |
1298 | bfd_get_reloc_code_name (fixP->fx_r_type)); | |
1299 | ||
32ff5c2e KH |
1300 | assert (-(int) fixP->fx_r_type < (int) alpha_num_operands); |
1301 | operand = &alpha_operands[-(int) fixP->fx_r_type]; | |
252b5132 RH |
1302 | |
1303 | /* The rest of these fixups only exist internally during symbol | |
1304 | resolution and have no representation in the object file. | |
1305 | Therefore they must be completely resolved as constants. */ | |
1306 | ||
1307 | if (fixP->fx_addsy != 0 | |
49309057 | 1308 | && S_GET_SEGMENT (fixP->fx_addsy) != absolute_section) |
252b5132 RH |
1309 | as_bad_where (fixP->fx_file, fixP->fx_line, |
1310 | _("non-absolute expression in constant field")); | |
1311 | ||
32ff5c2e KH |
1312 | image = bfd_getl32 (fixpos); |
1313 | image = insert_operand (image, operand, (offsetT) value, | |
1314 | fixP->fx_file, fixP->fx_line); | |
252b5132 RH |
1315 | } |
1316 | goto write_done; | |
1317 | } | |
1318 | ||
1319 | if (fixP->fx_addsy != 0 || fixP->fx_pcrel != 0) | |
94f592af | 1320 | return; |
252b5132 RH |
1321 | else |
1322 | { | |
32ff5c2e | 1323 | as_warn_where (fixP->fx_file, fixP->fx_line, |
66498417 | 1324 | _("type %d reloc done?\n"), (int) fixP->fx_r_type); |
252b5132 RH |
1325 | goto done; |
1326 | } | |
1327 | ||
1328 | write_done: | |
32ff5c2e | 1329 | md_number_to_chars (fixpos, image, 4); |
252b5132 RH |
1330 | |
1331 | done: | |
1332 | fixP->fx_done = 1; | |
252b5132 RH |
1333 | } |
1334 | ||
94f592af | 1335 | /* Look for a register name in the given symbol. */ |
252b5132 RH |
1336 | |
1337 | symbolS * | |
32ff5c2e | 1338 | md_undefined_symbol (name) |
252b5132 RH |
1339 | char *name; |
1340 | { | |
1341 | if (*name == '$') | |
1342 | { | |
1343 | int is_float = 0, num; | |
1344 | ||
1345 | switch (*++name) | |
1346 | { | |
1347 | case 'f': | |
1348 | if (name[1] == 'p' && name[2] == '\0') | |
1349 | return alpha_register_table[AXP_REG_FP]; | |
1350 | is_float = 32; | |
1351 | /* FALLTHRU */ | |
1352 | ||
1353 | case 'r': | |
3882b010 | 1354 | if (!ISDIGIT (*++name)) |
252b5132 RH |
1355 | break; |
1356 | /* FALLTHRU */ | |
1357 | ||
1358 | case '0': case '1': case '2': case '3': case '4': | |
1359 | case '5': case '6': case '7': case '8': case '9': | |
1360 | if (name[1] == '\0') | |
1361 | num = name[0] - '0'; | |
3882b010 | 1362 | else if (name[0] != '0' && ISDIGIT (name[1]) && name[2] == '\0') |
252b5132 RH |
1363 | { |
1364 | num = (name[0] - '0') * 10 + name[1] - '0'; | |
1365 | if (num >= 32) | |
1366 | break; | |
1367 | } | |
1368 | else | |
1369 | break; | |
1370 | ||
6480b79a | 1371 | if (!alpha_noat_on && (num + is_float) == AXP_REG_AT) |
32ff5c2e | 1372 | as_warn (_("Used $at without \".set noat\"")); |
252b5132 RH |
1373 | return alpha_register_table[num + is_float]; |
1374 | ||
1375 | case 'a': | |
1376 | if (name[1] == 't' && name[2] == '\0') | |
1377 | { | |
1378 | if (!alpha_noat_on) | |
32ff5c2e | 1379 | as_warn (_("Used $at without \".set noat\"")); |
252b5132 RH |
1380 | return alpha_register_table[AXP_REG_AT]; |
1381 | } | |
1382 | break; | |
1383 | ||
1384 | case 'g': | |
1385 | if (name[1] == 'p' && name[2] == '\0') | |
1386 | return alpha_register_table[alpha_gp_register]; | |
1387 | break; | |
1388 | ||
1389 | case 's': | |
1390 | if (name[1] == 'p' && name[2] == '\0') | |
1391 | return alpha_register_table[AXP_REG_SP]; | |
1392 | break; | |
1393 | } | |
1394 | } | |
1395 | return NULL; | |
1396 | } | |
1397 | ||
1398 | #ifdef OBJ_ECOFF | |
1399 | /* @@@ Magic ECOFF bits. */ | |
1400 | ||
1401 | void | |
1402 | alpha_frob_ecoff_data () | |
1403 | { | |
1404 | select_gp_value (); | |
1405 | /* $zero and $f31 are read-only */ | |
1406 | alpha_gprmask &= ~1; | |
1407 | alpha_fprmask &= ~1; | |
1408 | } | |
1409 | #endif | |
1410 | ||
1411 | /* Hook to remember a recently defined label so that the auto-align | |
1412 | code can adjust the symbol after we know what alignment will be | |
1413 | required. */ | |
1414 | ||
1415 | void | |
1416 | alpha_define_label (sym) | |
1417 | symbolS *sym; | |
1418 | { | |
1419 | alpha_insn_label = sym; | |
1420 | } | |
1421 | ||
543833df RH |
1422 | /* If we have a BRSGP reloc to a local symbol, adjust it to BRADDR and |
1423 | let it get resolved at assembly time. */ | |
1424 | ||
11f45fb5 | 1425 | #ifdef OBJ_ELF |
543833df RH |
1426 | void |
1427 | alpha_validate_fix (f) | |
1428 | fixS *f; | |
1429 | { | |
543833df RH |
1430 | int offset = 0; |
1431 | const char *name; | |
1432 | ||
1433 | if (f->fx_r_type != BFD_RELOC_ALPHA_BRSGP) | |
1434 | return; | |
1435 | ||
1436 | if (! S_IS_DEFINED (f->fx_addsy)) | |
1437 | return; | |
1438 | ||
1439 | switch (S_GET_OTHER (f->fx_addsy) & STO_ALPHA_STD_GPLOAD) | |
1440 | { | |
1441 | case STO_ALPHA_NOPV: | |
1442 | break; | |
1443 | case STO_ALPHA_STD_GPLOAD: | |
1444 | offset = 8; | |
1445 | break; | |
1446 | default: | |
1447 | if (S_IS_LOCAL (f->fx_addsy)) | |
1448 | name = "<local>"; | |
1449 | else | |
1450 | name = S_GET_NAME (f->fx_addsy); | |
1451 | as_bad_where (f->fx_file, f->fx_line, | |
1452 | _("!samegp reloc against symbol without .prologue: %s"), | |
1453 | name); | |
1454 | break; | |
1455 | } | |
1456 | ||
1457 | if (! (S_IS_EXTERN (f->fx_addsy) || S_IS_WEAK (f->fx_addsy))) | |
1458 | { | |
1459 | f->fx_r_type = BFD_RELOC_23_PCREL_S2; | |
1460 | f->fx_offset += offset; | |
1461 | } | |
543833df | 1462 | } |
11f45fb5 | 1463 | #endif |
543833df | 1464 | |
252b5132 | 1465 | /* Return true if we must always emit a reloc for a type and false if |
b6ff326e | 1466 | there is some hope of resolving it at assembly time. */ |
252b5132 RH |
1467 | |
1468 | int | |
1469 | alpha_force_relocation (f) | |
1470 | fixS *f; | |
1471 | { | |
1472 | if (alpha_flag_relax) | |
1473 | return 1; | |
1474 | ||
1475 | switch (f->fx_r_type) | |
1476 | { | |
1477 | case BFD_RELOC_ALPHA_GPDISP_HI16: | |
1478 | case BFD_RELOC_ALPHA_GPDISP_LO16: | |
1479 | case BFD_RELOC_ALPHA_GPDISP: | |
252b5132 | 1480 | case BFD_RELOC_ALPHA_LITERAL: |
252b5132 | 1481 | case BFD_RELOC_ALPHA_ELF_LITERAL: |
252b5132 | 1482 | case BFD_RELOC_ALPHA_LITUSE: |
19f78583 | 1483 | case BFD_RELOC_GPREL16: |
252b5132 | 1484 | case BFD_RELOC_GPREL32: |
19f78583 RH |
1485 | case BFD_RELOC_ALPHA_GPREL_HI16: |
1486 | case BFD_RELOC_ALPHA_GPREL_LO16: | |
252b5132 RH |
1487 | case BFD_RELOC_ALPHA_LINKAGE: |
1488 | case BFD_RELOC_ALPHA_CODEADDR: | |
543833df | 1489 | case BFD_RELOC_ALPHA_BRSGP: |
b96ed59a PB |
1490 | case BFD_RELOC_VTABLE_INHERIT: |
1491 | case BFD_RELOC_VTABLE_ENTRY: | |
3765b1be RH |
1492 | case BFD_RELOC_ALPHA_TLSGD: |
1493 | case BFD_RELOC_ALPHA_TLSLDM: | |
1494 | case BFD_RELOC_ALPHA_GOTDTPREL16: | |
1495 | case BFD_RELOC_ALPHA_DTPREL_HI16: | |
1496 | case BFD_RELOC_ALPHA_DTPREL_LO16: | |
1497 | case BFD_RELOC_ALPHA_DTPREL16: | |
1498 | case BFD_RELOC_ALPHA_GOTTPREL16: | |
1499 | case BFD_RELOC_ALPHA_TPREL_HI16: | |
1500 | case BFD_RELOC_ALPHA_TPREL_LO16: | |
1501 | case BFD_RELOC_ALPHA_TPREL16: | |
252b5132 RH |
1502 | return 1; |
1503 | ||
252b5132 | 1504 | default: |
a161fe53 | 1505 | break; |
252b5132 | 1506 | } |
a161fe53 AM |
1507 | |
1508 | return S_FORCE_RELOC (f->fx_addsy); | |
252b5132 RH |
1509 | } |
1510 | ||
1511 | /* Return true if we can partially resolve a relocation now. */ | |
1512 | ||
1513 | int | |
1514 | alpha_fix_adjustable (f) | |
1515 | fixS *f; | |
1516 | { | |
252b5132 RH |
1517 | /* Are there any relocation types for which we must generate a reloc |
1518 | but we can adjust the values contained within it? */ | |
1519 | switch (f->fx_r_type) | |
1520 | { | |
1521 | case BFD_RELOC_ALPHA_GPDISP_HI16: | |
1522 | case BFD_RELOC_ALPHA_GPDISP_LO16: | |
1523 | case BFD_RELOC_ALPHA_GPDISP: | |
543833df | 1524 | case BFD_RELOC_ALPHA_BRSGP: |
252b5132 RH |
1525 | return 0; |
1526 | ||
252b5132 | 1527 | case BFD_RELOC_ALPHA_LITERAL: |
252b5132 | 1528 | case BFD_RELOC_ALPHA_ELF_LITERAL: |
19f78583 | 1529 | case BFD_RELOC_ALPHA_LITUSE: |
252b5132 RH |
1530 | case BFD_RELOC_ALPHA_LINKAGE: |
1531 | case BFD_RELOC_ALPHA_CODEADDR: | |
252b5132 RH |
1532 | return 1; |
1533 | ||
b96ed59a PB |
1534 | case BFD_RELOC_VTABLE_ENTRY: |
1535 | case BFD_RELOC_VTABLE_INHERIT: | |
252b5132 RH |
1536 | return 0; |
1537 | ||
19f78583 | 1538 | case BFD_RELOC_GPREL16: |
252b5132 | 1539 | case BFD_RELOC_GPREL32: |
19f78583 RH |
1540 | case BFD_RELOC_ALPHA_GPREL_HI16: |
1541 | case BFD_RELOC_ALPHA_GPREL_LO16: | |
252b5132 RH |
1542 | case BFD_RELOC_23_PCREL_S2: |
1543 | case BFD_RELOC_32: | |
1544 | case BFD_RELOC_64: | |
1545 | case BFD_RELOC_ALPHA_HINT: | |
1546 | return 1; | |
1547 | ||
3765b1be RH |
1548 | case BFD_RELOC_ALPHA_TLSGD: |
1549 | case BFD_RELOC_ALPHA_TLSLDM: | |
1550 | case BFD_RELOC_ALPHA_GOTDTPREL16: | |
1551 | case BFD_RELOC_ALPHA_DTPREL_HI16: | |
1552 | case BFD_RELOC_ALPHA_DTPREL_LO16: | |
1553 | case BFD_RELOC_ALPHA_DTPREL16: | |
1554 | case BFD_RELOC_ALPHA_GOTTPREL16: | |
1555 | case BFD_RELOC_ALPHA_TPREL_HI16: | |
1556 | case BFD_RELOC_ALPHA_TPREL_LO16: | |
1557 | case BFD_RELOC_ALPHA_TPREL16: | |
1558 | /* ??? No idea why we can't return a reference to .tbss+10, but | |
1559 | we're preventing this in the other assemblers. Follow for now. */ | |
1560 | return 0; | |
1561 | ||
252b5132 | 1562 | default: |
252b5132 RH |
1563 | return 1; |
1564 | } | |
1565 | /*NOTREACHED*/ | |
1566 | } | |
1567 | ||
1568 | /* Generate the BFD reloc to be stuck in the object file from the | |
1569 | fixup used internally in the assembler. */ | |
1570 | ||
1571 | arelent * | |
1572 | tc_gen_reloc (sec, fixp) | |
446a06c9 | 1573 | asection *sec ATTRIBUTE_UNUSED; |
252b5132 RH |
1574 | fixS *fixp; |
1575 | { | |
1576 | arelent *reloc; | |
1577 | ||
1578 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
49309057 ILT |
1579 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
1580 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
252b5132 RH |
1581 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; |
1582 | ||
1583 | /* Make sure none of our internal relocations make it this far. | |
1584 | They'd better have been fully resolved by this point. */ | |
32ff5c2e | 1585 | assert ((int) fixp->fx_r_type > 0); |
252b5132 RH |
1586 | |
1587 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
1588 | if (reloc->howto == NULL) | |
1589 | { | |
1590 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1591 | _("cannot represent `%s' relocation in object file"), | |
1592 | bfd_get_reloc_code_name (fixp->fx_r_type)); | |
1593 | return NULL; | |
1594 | } | |
1595 | ||
1596 | if (!fixp->fx_pcrel != !reloc->howto->pc_relative) | |
1597 | { | |
1598 | as_fatal (_("internal error? cannot generate `%s' relocation"), | |
1599 | bfd_get_reloc_code_name (fixp->fx_r_type)); | |
1600 | } | |
1601 | assert (!fixp->fx_pcrel == !reloc->howto->pc_relative); | |
1602 | ||
1603 | #ifdef OBJ_ECOFF | |
1604 | if (fixp->fx_r_type == BFD_RELOC_ALPHA_LITERAL) | |
1605 | { | |
11f45fb5 | 1606 | /* Fake out bfd_perform_relocation. sigh. */ |
252b5132 RH |
1607 | reloc->addend = -alpha_gp_value; |
1608 | } | |
1609 | else | |
1610 | #endif | |
1611 | { | |
1612 | reloc->addend = fixp->fx_offset; | |
1613 | #ifdef OBJ_ELF | |
11f45fb5 NC |
1614 | /* Ohhh, this is ugly. The problem is that if this is a local global |
1615 | symbol, the relocation will entirely be performed at link time, not | |
1616 | at assembly time. bfd_perform_reloc doesn't know about this sort | |
1617 | of thing, and as a result we need to fake it out here. */ | |
f7460f5f | 1618 | if ((S_IS_EXTERN (fixp->fx_addsy) || S_IS_WEAK (fixp->fx_addsy) |
13ae64f3 JJ |
1619 | || (S_GET_SEGMENT (fixp->fx_addsy)->flags & SEC_MERGE) |
1620 | || (S_GET_SEGMENT (fixp->fx_addsy)->flags & SEC_THREAD_LOCAL)) | |
32ff5c2e | 1621 | && !S_IS_COMMON (fixp->fx_addsy)) |
49309057 | 1622 | reloc->addend -= symbol_get_bfdsym (fixp->fx_addsy)->value; |
252b5132 RH |
1623 | #endif |
1624 | } | |
1625 | ||
1626 | return reloc; | |
1627 | } | |
1628 | ||
1629 | /* Parse a register name off of the input_line and return a register | |
1630 | number. Gets md_undefined_symbol above to do the register name | |
1631 | matching for us. | |
1632 | ||
1633 | Only called as a part of processing the ECOFF .frame directive. */ | |
1634 | ||
1635 | int | |
1636 | tc_get_register (frame) | |
446a06c9 | 1637 | int frame ATTRIBUTE_UNUSED; |
252b5132 RH |
1638 | { |
1639 | int framereg = AXP_REG_SP; | |
1640 | ||
1641 | SKIP_WHITESPACE (); | |
1642 | if (*input_line_pointer == '$') | |
1643 | { | |
1644 | char *s = input_line_pointer; | |
1645 | char c = get_symbol_end (); | |
1646 | symbolS *sym = md_undefined_symbol (s); | |
1647 | ||
32ff5c2e | 1648 | *strchr (s, '\0') = c; |
252b5132 RH |
1649 | if (sym && (framereg = S_GET_VALUE (sym)) <= 31) |
1650 | goto found; | |
1651 | } | |
1652 | as_warn (_("frame reg expected, using $%d."), framereg); | |
1653 | ||
1654 | found: | |
1655 | note_gpreg (framereg); | |
1656 | return framereg; | |
1657 | } | |
1658 | ||
1659 | /* This is called before the symbol table is processed. In order to | |
1660 | work with gcc when using mips-tfile, we must keep all local labels. | |
1661 | However, in other cases, we want to discard them. If we were | |
1662 | called with -g, but we didn't see any debugging information, it may | |
1663 | mean that gcc is smuggling debugging information through to | |
1664 | mips-tfile, in which case we must generate all local labels. */ | |
1665 | ||
1666 | #ifdef OBJ_ECOFF | |
1667 | ||
1668 | void | |
1669 | alpha_frob_file_before_adjust () | |
1670 | { | |
1671 | if (alpha_debug != 0 | |
1672 | && ! ecoff_debugging_seen) | |
1673 | flag_keep_locals = 1; | |
1674 | } | |
1675 | ||
1676 | #endif /* OBJ_ECOFF */ | |
1677 | \f | |
19f78583 RH |
1678 | static struct alpha_reloc_tag * |
1679 | get_alpha_reloc_tag (sequence) | |
1680 | long sequence; | |
1681 | { | |
1682 | char buffer[ALPHA_RELOC_DIGITS]; | |
1683 | struct alpha_reloc_tag *info; | |
1684 | ||
1685 | sprintf (buffer, "!%ld", sequence); | |
1686 | ||
1687 | info = (struct alpha_reloc_tag *) hash_find (alpha_literal_hash, buffer); | |
1688 | if (! info) | |
1689 | { | |
1690 | size_t len = strlen (buffer); | |
1691 | const char *errmsg; | |
1692 | ||
1693 | info = (struct alpha_reloc_tag *) | |
1694 | xcalloc (sizeof (struct alpha_reloc_tag) + len, 1); | |
1695 | ||
1696 | info->segment = now_seg; | |
1697 | info->sequence = sequence; | |
1698 | strcpy (info->string, buffer); | |
1699 | errmsg = hash_insert (alpha_literal_hash, info->string, (PTR) info); | |
1700 | if (errmsg) | |
1701 | as_fatal (errmsg); | |
1702 | } | |
1703 | ||
1704 | return info; | |
1705 | } | |
43b4c25e | 1706 | |
66498417 KH |
1707 | /* Before the relocations are written, reorder them, so that user |
1708 | supplied !lituse relocations follow the appropriate !literal | |
19f78583 | 1709 | relocations, and similarly for !gpdisp relocations. */ |
43b4c25e MM |
1710 | |
1711 | void | |
a161fe53 | 1712 | alpha_before_fix () |
43b4c25e MM |
1713 | { |
1714 | if (alpha_literal_hash) | |
a161fe53 | 1715 | bfd_map_over_sections (stdoutput, alpha_adjust_relocs, NULL); |
43b4c25e | 1716 | } |
43b4c25e MM |
1717 | |
1718 | static void | |
a161fe53 | 1719 | alpha_adjust_relocs (abfd, sec, ptr) |
4dc7ead9 | 1720 | bfd *abfd ATTRIBUTE_UNUSED; |
43b4c25e | 1721 | asection *sec; |
4dc7ead9 | 1722 | PTR ptr ATTRIBUTE_UNUSED; |
43b4c25e MM |
1723 | { |
1724 | segment_info_type *seginfo = seg_info (sec); | |
1725 | fixS **prevP; | |
1726 | fixS *fixp; | |
1727 | fixS *next; | |
19f78583 | 1728 | fixS *slave; |
43b4c25e | 1729 | |
66498417 KH |
1730 | /* If seginfo is NULL, we did not create this section; don't do |
1731 | anything with it. By using a pointer to a pointer, we can update | |
1732 | the links in place. */ | |
43b4c25e MM |
1733 | if (seginfo == NULL) |
1734 | return; | |
1735 | ||
1736 | /* If there are no relocations, skip the section. */ | |
1737 | if (! seginfo->fix_root) | |
1738 | return; | |
1739 | ||
19f78583 RH |
1740 | /* First rebuild the fixup chain without the expicit lituse and |
1741 | gpdisp_lo16 relocs. */ | |
1742 | prevP = &seginfo->fix_root; | |
43b4c25e MM |
1743 | for (fixp = seginfo->fix_root; fixp; fixp = next) |
1744 | { | |
1745 | next = fixp->fx_next; | |
32ff5c2e | 1746 | fixp->fx_next = (fixS *) 0; |
43b4c25e MM |
1747 | |
1748 | switch (fixp->fx_r_type) | |
1749 | { | |
19f78583 | 1750 | case BFD_RELOC_ALPHA_LITUSE: |
19f78583 RH |
1751 | if (fixp->tc_fix_data.info->n_master == 0) |
1752 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1753 | _("No !literal!%ld was found"), | |
1754 | fixp->tc_fix_data.info->sequence); | |
11f45fb5 | 1755 | #ifdef RELOC_OP_P |
9e756d64 | 1756 | if (fixp->fx_offset == LITUSE_ALPHA_TLSGD) |
3765b1be RH |
1757 | { |
1758 | if (! fixp->tc_fix_data.info->saw_tlsgd) | |
1759 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1760 | _("No !tlsgd!%ld was found"), | |
1761 | fixp->tc_fix_data.info->sequence); | |
1762 | } | |
9e756d64 | 1763 | else if (fixp->fx_offset == LITUSE_ALPHA_TLSLDM) |
3765b1be RH |
1764 | { |
1765 | if (! fixp->tc_fix_data.info->saw_tlsldm) | |
1766 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1767 | _("No !tlsldm!%ld was found"), | |
1768 | fixp->tc_fix_data.info->sequence); | |
1769 | } | |
11f45fb5 | 1770 | #endif |
43b4c25e MM |
1771 | break; |
1772 | ||
19f78583 | 1773 | case BFD_RELOC_ALPHA_GPDISP_LO16: |
19f78583 | 1774 | if (fixp->tc_fix_data.info->n_master == 0) |
43b4c25e | 1775 | as_bad_where (fixp->fx_file, fixp->fx_line, |
19f78583 | 1776 | _("No ldah !gpdisp!%ld was found"), |
43b4c25e | 1777 | fixp->tc_fix_data.info->sequence); |
19f78583 RH |
1778 | break; |
1779 | ||
3765b1be | 1780 | case BFD_RELOC_ALPHA_ELF_LITERAL: |
20e130e9 RH |
1781 | if (fixp->tc_fix_data.info |
1782 | && (fixp->tc_fix_data.info->saw_tlsgd | |
1783 | || fixp->tc_fix_data.info->saw_tlsldm)) | |
3765b1be RH |
1784 | break; |
1785 | /* FALLTHRU */ | |
1786 | ||
19f78583 RH |
1787 | default: |
1788 | *prevP = fixp; | |
1789 | prevP = &fixp->fx_next; | |
43b4c25e MM |
1790 | break; |
1791 | } | |
1792 | } | |
1793 | ||
3765b1be RH |
1794 | /* Go back and re-chain dependent relocations. They are currently |
1795 | linked through the next_reloc field in reverse order, so as we | |
1796 | go through the next_reloc chain, we effectively reverse the chain | |
1797 | once again. | |
19f78583 RH |
1798 | |
1799 | Except if there is more than one !literal for a given sequence | |
1800 | number. In that case, the programmer and/or compiler is not sure | |
1801 | how control flows from literal to lituse, and we can't be sure to | |
1802 | get the relaxation correct. | |
1803 | ||
1804 | ??? Well, actually we could, if there are enough lituses such that | |
1805 | we can make each literal have at least one of each lituse type | |
1806 | present. Not implemented. | |
1807 | ||
1808 | Also suppress the optimization if the !literals/!lituses are spread | |
1809 | in different segments. This can happen with "intersting" uses of | |
1810 | inline assembly; examples are present in the Linux kernel semaphores. */ | |
1811 | ||
1812 | for (fixp = seginfo->fix_root; fixp; fixp = next) | |
43b4c25e | 1813 | { |
19f78583 RH |
1814 | next = fixp->fx_next; |
1815 | switch (fixp->fx_r_type) | |
43b4c25e | 1816 | { |
3765b1be RH |
1817 | case BFD_RELOC_ALPHA_TLSGD: |
1818 | case BFD_RELOC_ALPHA_TLSLDM: | |
1819 | if (!fixp->tc_fix_data.info) | |
1820 | break; | |
1821 | if (fixp->tc_fix_data.info->n_master == 0) | |
1822 | break; | |
1823 | else if (fixp->tc_fix_data.info->n_master > 1) | |
1824 | { | |
1825 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1826 | _("too many !literal!%ld for %s"), | |
1827 | fixp->tc_fix_data.info->sequence, | |
1828 | (fixp->fx_r_type == BFD_RELOC_ALPHA_TLSGD | |
1829 | ? "!tlsgd" : "!tlsldm")); | |
1830 | break; | |
1831 | } | |
1832 | ||
1833 | fixp->tc_fix_data.info->master->fx_next = fixp->fx_next; | |
1834 | fixp->fx_next = fixp->tc_fix_data.info->master; | |
1835 | fixp = fixp->fx_next; | |
1836 | /* FALLTHRU */ | |
1837 | ||
19f78583 | 1838 | case BFD_RELOC_ALPHA_ELF_LITERAL: |
20e130e9 RH |
1839 | if (fixp->tc_fix_data.info |
1840 | && fixp->tc_fix_data.info->n_master == 1 | |
19f78583 | 1841 | && ! fixp->tc_fix_data.info->multi_section_p) |
43b4c25e | 1842 | { |
19f78583 RH |
1843 | for (slave = fixp->tc_fix_data.info->slaves; |
1844 | slave != (fixS *) 0; | |
1845 | slave = slave->tc_fix_data.next_reloc) | |
43b4c25e | 1846 | { |
19f78583 RH |
1847 | slave->fx_next = fixp->fx_next; |
1848 | fixp->fx_next = slave; | |
43b4c25e | 1849 | } |
19f78583 RH |
1850 | } |
1851 | break; | |
43b4c25e | 1852 | |
19f78583 RH |
1853 | case BFD_RELOC_ALPHA_GPDISP_HI16: |
1854 | if (fixp->tc_fix_data.info->n_slaves == 0) | |
1855 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1856 | _("No lda !gpdisp!%ld was found"), | |
1857 | fixp->tc_fix_data.info->sequence); | |
1858 | else | |
1859 | { | |
1860 | slave = fixp->tc_fix_data.info->slaves; | |
1861 | slave->fx_next = next; | |
1862 | fixp->fx_next = slave; | |
43b4c25e | 1863 | } |
19f78583 RH |
1864 | break; |
1865 | ||
1866 | default: | |
1867 | break; | |
43b4c25e MM |
1868 | } |
1869 | } | |
43b4c25e | 1870 | } |
43b4c25e MM |
1871 | \f |
1872 | #ifdef DEBUG_ALPHA | |
1873 | static void | |
1874 | debug_exp (tok, ntok) | |
1875 | expressionS tok[]; | |
1876 | int ntok; | |
1877 | { | |
1878 | int i; | |
1879 | ||
1880 | fprintf (stderr, "debug_exp: %d tokens", ntok); | |
1881 | for (i = 0; i < ntok; i++) | |
1882 | { | |
1883 | expressionS *t = &tok[i]; | |
1884 | const char *name; | |
11f45fb5 | 1885 | |
43b4c25e MM |
1886 | switch (t->X_op) |
1887 | { | |
1888 | default: name = "unknown"; break; | |
1889 | case O_illegal: name = "O_illegal"; break; | |
1890 | case O_absent: name = "O_absent"; break; | |
1891 | case O_constant: name = "O_constant"; break; | |
1892 | case O_symbol: name = "O_symbol"; break; | |
1893 | case O_symbol_rva: name = "O_symbol_rva"; break; | |
1894 | case O_register: name = "O_register"; break; | |
1895 | case O_big: name = "O_big"; break; | |
1896 | case O_uminus: name = "O_uminus"; break; | |
1897 | case O_bit_not: name = "O_bit_not"; break; | |
1898 | case O_logical_not: name = "O_logical_not"; break; | |
1899 | case O_multiply: name = "O_multiply"; break; | |
1900 | case O_divide: name = "O_divide"; break; | |
1901 | case O_modulus: name = "O_modulus"; break; | |
1902 | case O_left_shift: name = "O_left_shift"; break; | |
1903 | case O_right_shift: name = "O_right_shift"; break; | |
1904 | case O_bit_inclusive_or: name = "O_bit_inclusive_or"; break; | |
1905 | case O_bit_or_not: name = "O_bit_or_not"; break; | |
1906 | case O_bit_exclusive_or: name = "O_bit_exclusive_or"; break; | |
1907 | case O_bit_and: name = "O_bit_and"; break; | |
1908 | case O_add: name = "O_add"; break; | |
1909 | case O_subtract: name = "O_subtract"; break; | |
1910 | case O_eq: name = "O_eq"; break; | |
1911 | case O_ne: name = "O_ne"; break; | |
1912 | case O_lt: name = "O_lt"; break; | |
1913 | case O_le: name = "O_le"; break; | |
1914 | case O_ge: name = "O_ge"; break; | |
1915 | case O_gt: name = "O_gt"; break; | |
1916 | case O_logical_and: name = "O_logical_and"; break; | |
1917 | case O_logical_or: name = "O_logical_or"; break; | |
1918 | case O_index: name = "O_index"; break; | |
1919 | case O_pregister: name = "O_pregister"; break; | |
1920 | case O_cpregister: name = "O_cpregister"; break; | |
1921 | case O_literal: name = "O_literal"; break; | |
543833df | 1922 | case O_lituse_addr: name = "O_lituse_addr"; break; |
43b4c25e MM |
1923 | case O_lituse_base: name = "O_lituse_base"; break; |
1924 | case O_lituse_bytoff: name = "O_lituse_bytoff"; break; | |
1925 | case O_lituse_jsr: name = "O_lituse_jsr"; break; | |
3765b1be RH |
1926 | case O_lituse_tlsgd: name = "O_lituse_tlsgd"; break; |
1927 | case O_lituse_tlsldm: name = "O_lituse_tlsldm"; break; | |
43b4c25e MM |
1928 | case O_gpdisp: name = "O_gpdisp"; break; |
1929 | case O_gprelhigh: name = "O_gprelhigh"; break; | |
1930 | case O_gprellow: name = "O_gprellow"; break; | |
19f78583 | 1931 | case O_gprel: name = "O_gprel"; break; |
543833df | 1932 | case O_samegp: name = "O_samegp"; break; |
3765b1be RH |
1933 | case O_tlsgd: name = "O_tlsgd"; break; |
1934 | case O_tlsldm: name = "O_tlsldm"; break; | |
1935 | case O_gotdtprel: name = "O_gotdtprel"; break; | |
1936 | case O_dtprelhi: name = "O_dtprelhi"; break; | |
1937 | case O_dtprello: name = "O_dtprello"; break; | |
1938 | case O_dtprel: name = "O_dtprel"; break; | |
1939 | case O_gottprel: name = "O_gottprel"; break; | |
1940 | case O_tprelhi: name = "O_tprelhi"; break; | |
1941 | case O_tprello: name = "O_tprello"; break; | |
1942 | case O_tprel: name = "O_tprel"; break; | |
43b4c25e MM |
1943 | } |
1944 | ||
1945 | fprintf (stderr, ", %s(%s, %s, %d)", name, | |
1946 | (t->X_add_symbol) ? S_GET_NAME (t->X_add_symbol) : "--", | |
1947 | (t->X_op_symbol) ? S_GET_NAME (t->X_op_symbol) : "--", | |
32ff5c2e | 1948 | (int) t->X_add_number); |
43b4c25e MM |
1949 | } |
1950 | fprintf (stderr, "\n"); | |
1951 | fflush (stderr); | |
1952 | } | |
1953 | #endif | |
1954 | ||
252b5132 RH |
1955 | /* Parse the arguments to an opcode. */ |
1956 | ||
1957 | static int | |
1958 | tokenize_arguments (str, tok, ntok) | |
1959 | char *str; | |
1960 | expressionS tok[]; | |
1961 | int ntok; | |
1962 | { | |
1963 | expressionS *end_tok = tok + ntok; | |
1964 | char *old_input_line_pointer; | |
1965 | int saw_comma = 0, saw_arg = 0; | |
43b4c25e MM |
1966 | #ifdef DEBUG_ALPHA |
1967 | expressionS *orig_tok = tok; | |
1968 | #endif | |
11f45fb5 | 1969 | #ifdef RELOC_OP_P |
43b4c25e MM |
1970 | char *p; |
1971 | const struct alpha_reloc_op_tag *r; | |
1972 | int c, i; | |
1973 | size_t len; | |
1974 | int reloc_found_p = 0; | |
11f45fb5 | 1975 | #endif |
252b5132 RH |
1976 | |
1977 | memset (tok, 0, sizeof (*tok) * ntok); | |
1978 | ||
11f45fb5 | 1979 | /* Save and restore input_line_pointer around this function. */ |
252b5132 RH |
1980 | old_input_line_pointer = input_line_pointer; |
1981 | input_line_pointer = str; | |
1982 | ||
19f78583 RH |
1983 | #ifdef RELOC_OP_P |
1984 | /* ??? Wrest control of ! away from the regular expression parser. */ | |
1985 | is_end_of_line[(unsigned char) '!'] = 1; | |
1986 | #endif | |
1987 | ||
252b5132 RH |
1988 | while (tok < end_tok && *input_line_pointer) |
1989 | { | |
1990 | SKIP_WHITESPACE (); | |
1991 | switch (*input_line_pointer) | |
1992 | { | |
1993 | case '\0': | |
1994 | goto fini; | |
1995 | ||
43b4c25e MM |
1996 | #ifdef RELOC_OP_P |
1997 | case '!': | |
1998 | /* A relocation operand can be placed after the normal operand on an | |
1999 | assembly language statement, and has the following form: | |
2000 | !relocation_type!sequence_number. */ | |
2001 | if (reloc_found_p) | |
11f45fb5 NC |
2002 | { |
2003 | /* Only support one relocation op per insn. */ | |
43b4c25e MM |
2004 | as_bad (_("More than one relocation op per insn")); |
2005 | goto err_report; | |
2006 | } | |
2007 | ||
2008 | if (!saw_arg) | |
2009 | goto err; | |
2010 | ||
19f78583 | 2011 | ++input_line_pointer; |
cc8a6dd0 | 2012 | SKIP_WHITESPACE (); |
19f78583 RH |
2013 | p = input_line_pointer; |
2014 | c = get_symbol_end (); | |
43b4c25e | 2015 | |
11f45fb5 | 2016 | /* Parse !relocation_type. */ |
19f78583 | 2017 | len = input_line_pointer - p; |
43b4c25e MM |
2018 | if (len == 0) |
2019 | { | |
2020 | as_bad (_("No relocation operand")); | |
2021 | goto err_report; | |
2022 | } | |
2023 | ||
43b4c25e | 2024 | r = &alpha_reloc_op[0]; |
66498417 | 2025 | for (i = alpha_num_reloc_op - 1; i >= 0; i--, r++) |
19f78583 RH |
2026 | if (len == r->length && memcmp (p, r->name, len) == 0) |
2027 | break; | |
43b4c25e MM |
2028 | if (i < 0) |
2029 | { | |
19f78583 | 2030 | as_bad (_("Unknown relocation operand: !%s"), p); |
43b4c25e MM |
2031 | goto err_report; |
2032 | } | |
2033 | ||
19f78583 | 2034 | *input_line_pointer = c; |
cc8a6dd0 | 2035 | SKIP_WHITESPACE (); |
19f78583 RH |
2036 | if (*input_line_pointer != '!') |
2037 | { | |
ec8fcf4a | 2038 | if (r->require_seq) |
19f78583 | 2039 | { |
ec8fcf4a | 2040 | as_bad (_("no sequence number after !%s"), p); |
19f78583 RH |
2041 | goto err_report; |
2042 | } | |
2043 | ||
19f78583 | 2044 | tok->X_add_number = 0; |
19f78583 | 2045 | } |
ec8fcf4a RH |
2046 | else |
2047 | { | |
2048 | if (! r->allow_seq) | |
2049 | { | |
2050 | as_bad (_("!%s does not use a sequence number"), p); | |
2051 | goto err_report; | |
2052 | } | |
19f78583 | 2053 | |
ec8fcf4a | 2054 | input_line_pointer++; |
43b4c25e | 2055 | |
11f45fb5 | 2056 | /* Parse !sequence_number. */ |
ec8fcf4a RH |
2057 | expression (tok); |
2058 | if (tok->X_op != O_constant || tok->X_add_number <= 0) | |
2059 | { | |
2060 | as_bad (_("Bad sequence number: !%s!%s"), | |
2061 | r->name, input_line_pointer); | |
2062 | goto err_report; | |
2063 | } | |
43b4c25e MM |
2064 | } |
2065 | ||
2066 | tok->X_op = r->op; | |
2067 | reloc_found_p = 1; | |
2068 | ++tok; | |
2069 | break; | |
19f78583 | 2070 | #endif /* RELOC_OP_P */ |
43b4c25e | 2071 | |
252b5132 RH |
2072 | case ',': |
2073 | ++input_line_pointer; | |
2074 | if (saw_comma || !saw_arg) | |
2075 | goto err; | |
2076 | saw_comma = 1; | |
2077 | break; | |
2078 | ||
2079 | case '(': | |
2080 | { | |
2081 | char *hold = input_line_pointer++; | |
2082 | ||
1dab94dd | 2083 | /* First try for parenthesized register ... */ |
252b5132 RH |
2084 | expression (tok); |
2085 | if (*input_line_pointer == ')' && tok->X_op == O_register) | |
2086 | { | |
2087 | tok->X_op = (saw_comma ? O_cpregister : O_pregister); | |
2088 | saw_comma = 0; | |
2089 | saw_arg = 1; | |
2090 | ++input_line_pointer; | |
2091 | ++tok; | |
2092 | break; | |
2093 | } | |
2094 | ||
11f45fb5 | 2095 | /* ... then fall through to plain expression. */ |
252b5132 RH |
2096 | input_line_pointer = hold; |
2097 | } | |
2098 | ||
2099 | default: | |
2100 | if (saw_arg && !saw_comma) | |
2101 | goto err; | |
43b4c25e | 2102 | |
252b5132 RH |
2103 | expression (tok); |
2104 | if (tok->X_op == O_illegal || tok->X_op == O_absent) | |
2105 | goto err; | |
2106 | ||
2107 | saw_comma = 0; | |
2108 | saw_arg = 1; | |
2109 | ++tok; | |
2110 | break; | |
2111 | } | |
2112 | } | |
2113 | ||
2114 | fini: | |
2115 | if (saw_comma) | |
2116 | goto err; | |
2117 | input_line_pointer = old_input_line_pointer; | |
43b4c25e MM |
2118 | |
2119 | #ifdef DEBUG_ALPHA | |
2120 | debug_exp (orig_tok, ntok - (end_tok - tok)); | |
2121 | #endif | |
19f78583 RH |
2122 | #ifdef RELOC_OP_P |
2123 | is_end_of_line[(unsigned char) '!'] = 0; | |
2124 | #endif | |
43b4c25e | 2125 | |
252b5132 RH |
2126 | return ntok - (end_tok - tok); |
2127 | ||
2128 | err: | |
19f78583 RH |
2129 | #ifdef RELOC_OP_P |
2130 | is_end_of_line[(unsigned char) '!'] = 0; | |
2131 | #endif | |
252b5132 | 2132 | input_line_pointer = old_input_line_pointer; |
43b4c25e MM |
2133 | return TOKENIZE_ERROR; |
2134 | ||
19f78583 | 2135 | #ifdef RELOC_OP_P |
11f45fb5 | 2136 | err_report: |
19f78583 RH |
2137 | is_end_of_line[(unsigned char) '!'] = 0; |
2138 | #endif | |
43b4c25e MM |
2139 | input_line_pointer = old_input_line_pointer; |
2140 | return TOKENIZE_ERROR_REPORT; | |
252b5132 RH |
2141 | } |
2142 | ||
2143 | /* Search forward through all variants of an opcode looking for a | |
2144 | syntax match. */ | |
2145 | ||
2146 | static const struct alpha_opcode * | |
32ff5c2e | 2147 | find_opcode_match (first_opcode, tok, pntok, pcpumatch) |
252b5132 RH |
2148 | const struct alpha_opcode *first_opcode; |
2149 | const expressionS *tok; | |
2150 | int *pntok; | |
2151 | int *pcpumatch; | |
2152 | { | |
2153 | const struct alpha_opcode *opcode = first_opcode; | |
2154 | int ntok = *pntok; | |
2155 | int got_cpu_match = 0; | |
2156 | ||
2157 | do | |
2158 | { | |
2159 | const unsigned char *opidx; | |
2160 | int tokidx = 0; | |
2161 | ||
11f45fb5 | 2162 | /* Don't match opcodes that don't exist on this architecture. */ |
252b5132 RH |
2163 | if (!(opcode->flags & alpha_target)) |
2164 | goto match_failed; | |
2165 | ||
2166 | got_cpu_match = 1; | |
2167 | ||
2168 | for (opidx = opcode->operands; *opidx; ++opidx) | |
2169 | { | |
2170 | const struct alpha_operand *operand = &alpha_operands[*opidx]; | |
2171 | ||
11f45fb5 | 2172 | /* Only take input from real operands. */ |
252b5132 RH |
2173 | if (operand->flags & AXP_OPERAND_FAKE) |
2174 | continue; | |
2175 | ||
11f45fb5 | 2176 | /* When we expect input, make sure we have it. */ |
252b5132 RH |
2177 | if (tokidx >= ntok) |
2178 | { | |
2179 | if ((operand->flags & AXP_OPERAND_OPTIONAL_MASK) == 0) | |
2180 | goto match_failed; | |
2181 | continue; | |
2182 | } | |
2183 | ||
11f45fb5 | 2184 | /* Match operand type with expression type. */ |
252b5132 RH |
2185 | switch (operand->flags & AXP_OPERAND_TYPECHECK_MASK) |
2186 | { | |
2187 | case AXP_OPERAND_IR: | |
2188 | if (tok[tokidx].X_op != O_register | |
32ff5c2e | 2189 | || !is_ir_num (tok[tokidx].X_add_number)) |
252b5132 RH |
2190 | goto match_failed; |
2191 | break; | |
2192 | case AXP_OPERAND_FPR: | |
2193 | if (tok[tokidx].X_op != O_register | |
32ff5c2e | 2194 | || !is_fpr_num (tok[tokidx].X_add_number)) |
252b5132 RH |
2195 | goto match_failed; |
2196 | break; | |
66498417 | 2197 | case AXP_OPERAND_IR | AXP_OPERAND_PARENS: |
252b5132 | 2198 | if (tok[tokidx].X_op != O_pregister |
32ff5c2e | 2199 | || !is_ir_num (tok[tokidx].X_add_number)) |
252b5132 RH |
2200 | goto match_failed; |
2201 | break; | |
66498417 | 2202 | case AXP_OPERAND_IR | AXP_OPERAND_PARENS | AXP_OPERAND_COMMA: |
252b5132 | 2203 | if (tok[tokidx].X_op != O_cpregister |
32ff5c2e | 2204 | || !is_ir_num (tok[tokidx].X_add_number)) |
252b5132 RH |
2205 | goto match_failed; |
2206 | break; | |
2207 | ||
2208 | case AXP_OPERAND_RELATIVE: | |
2209 | case AXP_OPERAND_SIGNED: | |
2210 | case AXP_OPERAND_UNSIGNED: | |
2211 | switch (tok[tokidx].X_op) | |
2212 | { | |
2213 | case O_illegal: | |
2214 | case O_absent: | |
2215 | case O_register: | |
2216 | case O_pregister: | |
2217 | case O_cpregister: | |
2218 | goto match_failed; | |
2219 | ||
2220 | default: | |
2221 | break; | |
2222 | } | |
2223 | break; | |
2224 | ||
2225 | default: | |
11f45fb5 | 2226 | /* Everything else should have been fake. */ |
bc805888 | 2227 | abort (); |
252b5132 RH |
2228 | } |
2229 | ++tokidx; | |
2230 | } | |
2231 | ||
11f45fb5 | 2232 | /* Possible match -- did we use all of our input? */ |
252b5132 RH |
2233 | if (tokidx == ntok) |
2234 | { | |
2235 | *pntok = ntok; | |
2236 | return opcode; | |
2237 | } | |
2238 | ||
2239 | match_failed:; | |
2240 | } | |
11f45fb5 | 2241 | while (++opcode - alpha_opcodes < (int) alpha_num_opcodes |
32ff5c2e | 2242 | && !strcmp (opcode->name, first_opcode->name)); |
252b5132 RH |
2243 | |
2244 | if (*pcpumatch) | |
1aad8cf8 | 2245 | *pcpumatch = got_cpu_match; |
252b5132 RH |
2246 | |
2247 | return NULL; | |
2248 | } | |
2249 | ||
2250 | /* Search forward through all variants of a macro looking for a syntax | |
2251 | match. */ | |
2252 | ||
2253 | static const struct alpha_macro * | |
32ff5c2e | 2254 | find_macro_match (first_macro, tok, pntok) |
252b5132 RH |
2255 | const struct alpha_macro *first_macro; |
2256 | const expressionS *tok; | |
2257 | int *pntok; | |
2258 | { | |
2259 | const struct alpha_macro *macro = first_macro; | |
2260 | int ntok = *pntok; | |
2261 | ||
2262 | do | |
2263 | { | |
2264 | const enum alpha_macro_arg *arg = macro->argsets; | |
2265 | int tokidx = 0; | |
2266 | ||
2267 | while (*arg) | |
2268 | { | |
2269 | switch (*arg) | |
2270 | { | |
2271 | case MACRO_EOA: | |
2272 | if (tokidx == ntok) | |
2273 | return macro; | |
2274 | else | |
2275 | tokidx = 0; | |
2276 | break; | |
2277 | ||
11f45fb5 | 2278 | /* Index register. */ |
252b5132 RH |
2279 | case MACRO_IR: |
2280 | if (tokidx >= ntok || tok[tokidx].X_op != O_register | |
32ff5c2e | 2281 | || !is_ir_num (tok[tokidx].X_add_number)) |
252b5132 RH |
2282 | goto match_failed; |
2283 | ++tokidx; | |
2284 | break; | |
43b4c25e | 2285 | |
11f45fb5 | 2286 | /* Parenthesized index register. */ |
252b5132 RH |
2287 | case MACRO_PIR: |
2288 | if (tokidx >= ntok || tok[tokidx].X_op != O_pregister | |
32ff5c2e | 2289 | || !is_ir_num (tok[tokidx].X_add_number)) |
252b5132 RH |
2290 | goto match_failed; |
2291 | ++tokidx; | |
2292 | break; | |
43b4c25e | 2293 | |
11f45fb5 | 2294 | /* Optional parenthesized index register. */ |
43b4c25e MM |
2295 | case MACRO_OPIR: |
2296 | if (tokidx < ntok && tok[tokidx].X_op == O_pregister | |
32ff5c2e | 2297 | && is_ir_num (tok[tokidx].X_add_number)) |
43b4c25e MM |
2298 | ++tokidx; |
2299 | break; | |
2300 | ||
11f45fb5 | 2301 | /* Leading comma with a parenthesized index register. */ |
252b5132 RH |
2302 | case MACRO_CPIR: |
2303 | if (tokidx >= ntok || tok[tokidx].X_op != O_cpregister | |
32ff5c2e | 2304 | || !is_ir_num (tok[tokidx].X_add_number)) |
252b5132 RH |
2305 | goto match_failed; |
2306 | ++tokidx; | |
2307 | break; | |
43b4c25e | 2308 | |
11f45fb5 | 2309 | /* Floating point register. */ |
252b5132 RH |
2310 | case MACRO_FPR: |
2311 | if (tokidx >= ntok || tok[tokidx].X_op != O_register | |
32ff5c2e | 2312 | || !is_fpr_num (tok[tokidx].X_add_number)) |
252b5132 RH |
2313 | goto match_failed; |
2314 | ++tokidx; | |
2315 | break; | |
2316 | ||
11f45fb5 | 2317 | /* Normal expression. */ |
252b5132 RH |
2318 | case MACRO_EXP: |
2319 | if (tokidx >= ntok) | |
2320 | goto match_failed; | |
2321 | switch (tok[tokidx].X_op) | |
2322 | { | |
2323 | case O_illegal: | |
2324 | case O_absent: | |
2325 | case O_register: | |
2326 | case O_pregister: | |
2327 | case O_cpregister: | |
43b4c25e MM |
2328 | case O_literal: |
2329 | case O_lituse_base: | |
2330 | case O_lituse_bytoff: | |
2331 | case O_lituse_jsr: | |
2332 | case O_gpdisp: | |
2333 | case O_gprelhigh: | |
2334 | case O_gprellow: | |
19f78583 | 2335 | case O_gprel: |
543833df | 2336 | case O_samegp: |
252b5132 RH |
2337 | goto match_failed; |
2338 | ||
2339 | default: | |
2340 | break; | |
2341 | } | |
2342 | ++tokidx; | |
2343 | break; | |
2344 | ||
2345 | match_failed: | |
2346 | while (*arg != MACRO_EOA) | |
2347 | ++arg; | |
2348 | tokidx = 0; | |
2349 | break; | |
2350 | } | |
2351 | ++arg; | |
2352 | } | |
2353 | } | |
11f45fb5 | 2354 | while (++macro - alpha_macros < (int) alpha_num_macros |
32ff5c2e | 2355 | && !strcmp (macro->name, first_macro->name)); |
252b5132 RH |
2356 | |
2357 | return NULL; | |
2358 | } | |
2359 | ||
2360 | /* Insert an operand value into an instruction. */ | |
2361 | ||
2362 | static unsigned | |
32ff5c2e | 2363 | insert_operand (insn, operand, val, file, line) |
252b5132 RH |
2364 | unsigned insn; |
2365 | const struct alpha_operand *operand; | |
2366 | offsetT val; | |
2367 | char *file; | |
2368 | unsigned line; | |
2369 | { | |
2370 | if (operand->bits != 32 && !(operand->flags & AXP_OPERAND_NOOVERFLOW)) | |
2371 | { | |
2372 | offsetT min, max; | |
2373 | ||
2374 | if (operand->flags & AXP_OPERAND_SIGNED) | |
2375 | { | |
2376 | max = (1 << (operand->bits - 1)) - 1; | |
2377 | min = -(1 << (operand->bits - 1)); | |
2378 | } | |
2379 | else | |
2380 | { | |
2381 | max = (1 << operand->bits) - 1; | |
2382 | min = 0; | |
2383 | } | |
2384 | ||
2385 | if (val < min || val > max) | |
2386 | { | |
2387 | const char *err = | |
2388 | _("operand out of range (%s not between %d and %d)"); | |
2389 | char buf[sizeof (val) * 3 + 2]; | |
2390 | ||
32ff5c2e | 2391 | sprint_value (buf, val); |
252b5132 | 2392 | if (file) |
32ff5c2e | 2393 | as_warn_where (file, line, err, buf, min, max); |
252b5132 | 2394 | else |
32ff5c2e | 2395 | as_warn (err, buf, min, max); |
252b5132 RH |
2396 | } |
2397 | } | |
2398 | ||
2399 | if (operand->insert) | |
2400 | { | |
2401 | const char *errmsg = NULL; | |
2402 | ||
2403 | insn = (*operand->insert) (insn, val, &errmsg); | |
2404 | if (errmsg) | |
2405 | as_warn (errmsg); | |
2406 | } | |
2407 | else | |
2408 | insn |= ((val & ((1 << operand->bits) - 1)) << operand->shift); | |
2409 | ||
2410 | return insn; | |
2411 | } | |
2412 | ||
11f45fb5 NC |
2413 | /* Turn an opcode description and a set of arguments into |
2414 | an instruction and a fixup. */ | |
252b5132 RH |
2415 | |
2416 | static void | |
19f78583 | 2417 | assemble_insn (opcode, tok, ntok, insn, reloc) |
252b5132 RH |
2418 | const struct alpha_opcode *opcode; |
2419 | const expressionS *tok; | |
2420 | int ntok; | |
2421 | struct alpha_insn *insn; | |
19f78583 | 2422 | bfd_reloc_code_real_type reloc; |
252b5132 | 2423 | { |
19f78583 RH |
2424 | const struct alpha_operand *reloc_operand = NULL; |
2425 | const expressionS *reloc_exp = NULL; | |
252b5132 RH |
2426 | const unsigned char *argidx; |
2427 | unsigned image; | |
2428 | int tokidx = 0; | |
2429 | ||
2430 | memset (insn, 0, sizeof (*insn)); | |
2431 | image = opcode->opcode; | |
2432 | ||
2433 | for (argidx = opcode->operands; *argidx; ++argidx) | |
2434 | { | |
2435 | const struct alpha_operand *operand = &alpha_operands[*argidx]; | |
32ff5c2e | 2436 | const expressionS *t = (const expressionS *) 0; |
252b5132 RH |
2437 | |
2438 | if (operand->flags & AXP_OPERAND_FAKE) | |
2439 | { | |
2440 | /* fake operands take no value and generate no fixup */ | |
32ff5c2e | 2441 | image = insert_operand (image, operand, 0, NULL, 0); |
252b5132 RH |
2442 | continue; |
2443 | } | |
2444 | ||
2445 | if (tokidx >= ntok) | |
2446 | { | |
2447 | switch (operand->flags & AXP_OPERAND_OPTIONAL_MASK) | |
2448 | { | |
2449 | case AXP_OPERAND_DEFAULT_FIRST: | |
2450 | t = &tok[0]; | |
2451 | break; | |
2452 | case AXP_OPERAND_DEFAULT_SECOND: | |
2453 | t = &tok[1]; | |
2454 | break; | |
2455 | case AXP_OPERAND_DEFAULT_ZERO: | |
2456 | { | |
446a06c9 | 2457 | static expressionS zero_exp; |
252b5132 | 2458 | t = &zero_exp; |
446a06c9 MM |
2459 | zero_exp.X_op = O_constant; |
2460 | zero_exp.X_unsigned = 1; | |
252b5132 RH |
2461 | } |
2462 | break; | |
2463 | default: | |
bc805888 | 2464 | abort (); |
252b5132 RH |
2465 | } |
2466 | } | |
2467 | else | |
2468 | t = &tok[tokidx++]; | |
2469 | ||
2470 | switch (t->X_op) | |
2471 | { | |
2472 | case O_register: | |
2473 | case O_pregister: | |
2474 | case O_cpregister: | |
32ff5c2e KH |
2475 | image = insert_operand (image, operand, regno (t->X_add_number), |
2476 | NULL, 0); | |
252b5132 RH |
2477 | break; |
2478 | ||
2479 | case O_constant: | |
32ff5c2e | 2480 | image = insert_operand (image, operand, t->X_add_number, NULL, 0); |
19f78583 RH |
2481 | assert (reloc_operand == NULL); |
2482 | reloc_operand = operand; | |
2483 | reloc_exp = t; | |
252b5132 RH |
2484 | break; |
2485 | ||
2486 | default: | |
19f78583 RH |
2487 | /* This is only 0 for fields that should contain registers, |
2488 | which means this pattern shouldn't have matched. */ | |
2489 | if (operand->default_reloc == 0) | |
2490 | abort (); | |
252b5132 | 2491 | |
19f78583 | 2492 | /* There is one special case for which an insn receives two |
cc8a6dd0 | 2493 | relocations, and thus the user-supplied reloc does not |
19f78583 RH |
2494 | override the operand reloc. */ |
2495 | if (operand->default_reloc == BFD_RELOC_ALPHA_HINT) | |
2496 | { | |
2497 | struct alpha_fixup *fixup; | |
252b5132 | 2498 | |
19f78583 RH |
2499 | if (insn->nfixups >= MAX_INSN_FIXUPS) |
2500 | as_fatal (_("too many fixups")); | |
252b5132 | 2501 | |
19f78583 RH |
2502 | fixup = &insn->fixups[insn->nfixups++]; |
2503 | fixup->exp = *t; | |
2504 | fixup->reloc = BFD_RELOC_ALPHA_HINT; | |
2505 | } | |
2506 | else | |
2507 | { | |
2508 | if (reloc == BFD_RELOC_UNUSED) | |
2509 | reloc = operand->default_reloc; | |
2510 | ||
2511 | assert (reloc_operand == NULL); | |
2512 | reloc_operand = operand; | |
2513 | reloc_exp = t; | |
2514 | } | |
252b5132 RH |
2515 | break; |
2516 | } | |
2517 | } | |
2518 | ||
19f78583 RH |
2519 | if (reloc != BFD_RELOC_UNUSED) |
2520 | { | |
2521 | struct alpha_fixup *fixup; | |
2522 | ||
2523 | if (insn->nfixups >= MAX_INSN_FIXUPS) | |
2524 | as_fatal (_("too many fixups")); | |
2525 | ||
2526 | /* ??? My but this is hacky. But the OSF/1 assembler uses the same | |
2527 | relocation tag for both ldah and lda with gpdisp. Choose the | |
2528 | correct internal relocation based on the opcode. */ | |
2529 | if (reloc == BFD_RELOC_ALPHA_GPDISP) | |
2530 | { | |
2531 | if (strcmp (opcode->name, "ldah") == 0) | |
2532 | reloc = BFD_RELOC_ALPHA_GPDISP_HI16; | |
2533 | else if (strcmp (opcode->name, "lda") == 0) | |
2534 | reloc = BFD_RELOC_ALPHA_GPDISP_LO16; | |
2535 | else | |
2536 | as_bad (_("invalid relocation for instruction")); | |
2537 | } | |
2538 | ||
2539 | /* If this is a real relocation (as opposed to a lituse hint), then | |
2540 | the relocation width should match the operand width. */ | |
2541 | else if (reloc < BFD_RELOC_UNUSED) | |
2542 | { | |
2543 | reloc_howto_type *reloc_howto | |
2544 | = bfd_reloc_type_lookup (stdoutput, reloc); | |
2545 | if (reloc_howto->bitsize != reloc_operand->bits) | |
2546 | { | |
2547 | as_bad (_("invalid relocation for field")); | |
2548 | return; | |
2549 | } | |
2550 | } | |
2551 | ||
2552 | fixup = &insn->fixups[insn->nfixups++]; | |
2553 | if (reloc_exp) | |
2554 | fixup->exp = *reloc_exp; | |
2555 | else | |
2556 | fixup->exp.X_op = O_absent; | |
2557 | fixup->reloc = reloc; | |
2558 | } | |
2559 | ||
252b5132 RH |
2560 | insn->insn = image; |
2561 | } | |
2562 | ||
11f45fb5 | 2563 | /* Actually output an instruction with its fixup. */ |
252b5132 RH |
2564 | |
2565 | static void | |
2566 | emit_insn (insn) | |
66498417 | 2567 | struct alpha_insn *insn; |
252b5132 RH |
2568 | { |
2569 | char *f; | |
2570 | int i; | |
2571 | ||
66498417 | 2572 | /* Take care of alignment duties. */ |
252b5132 RH |
2573 | if (alpha_auto_align_on && alpha_current_align < 2) |
2574 | alpha_align (2, (char *) NULL, alpha_insn_label, 0); | |
2575 | if (alpha_current_align > 2) | |
2576 | alpha_current_align = 2; | |
2577 | alpha_insn_label = NULL; | |
2578 | ||
2579 | /* Write out the instruction. */ | |
2580 | f = frag_more (4); | |
2581 | md_number_to_chars (f, insn->insn, 4); | |
2582 | ||
4dc7ead9 RH |
2583 | #ifdef OBJ_ELF |
2584 | dwarf2_emit_insn (4); | |
2585 | #endif | |
2586 | ||
11f45fb5 | 2587 | /* Apply the fixups in order. */ |
252b5132 RH |
2588 | for (i = 0; i < insn->nfixups; ++i) |
2589 | { | |
32ff5c2e | 2590 | const struct alpha_operand *operand = (const struct alpha_operand *) 0; |
252b5132 | 2591 | struct alpha_fixup *fixup = &insn->fixups[i]; |
3765b1be | 2592 | struct alpha_reloc_tag *info = NULL; |
252b5132 RH |
2593 | int size, pcrel; |
2594 | fixS *fixP; | |
2595 | ||
11f45fb5 | 2596 | /* Some fixups are only used internally and so have no howto. */ |
32ff5c2e | 2597 | if ((int) fixup->reloc < 0) |
252b5132 | 2598 | { |
32ff5c2e | 2599 | operand = &alpha_operands[-(int) fixup->reloc]; |
252b5132 RH |
2600 | size = 4; |
2601 | pcrel = ((operand->flags & AXP_OPERAND_RELATIVE) != 0); | |
2602 | } | |
19f78583 RH |
2603 | else if (fixup->reloc > BFD_RELOC_UNUSED |
2604 | || fixup->reloc == BFD_RELOC_ALPHA_GPDISP_HI16 | |
2605 | || fixup->reloc == BFD_RELOC_ALPHA_GPDISP_LO16) | |
2606 | { | |
2607 | size = 2; | |
2608 | pcrel = 0; | |
2609 | } | |
1aad8cf8 | 2610 | else |
19f78583 RH |
2611 | { |
2612 | reloc_howto_type *reloc_howto | |
2613 | = bfd_reloc_type_lookup (stdoutput, fixup->reloc); | |
2614 | assert (reloc_howto); | |
252b5132 | 2615 | |
19f78583 RH |
2616 | size = bfd_get_reloc_size (reloc_howto); |
2617 | assert (size >= 1 && size <= 4); | |
43b4c25e | 2618 | |
19f78583 RH |
2619 | pcrel = reloc_howto->pc_relative; |
2620 | } | |
252b5132 RH |
2621 | |
2622 | fixP = fix_new_exp (frag_now, f - frag_now->fr_literal, size, | |
2623 | &fixup->exp, pcrel, fixup->reloc); | |
2624 | ||
43b4c25e MM |
2625 | /* Turn off complaints that the addend is too large for some fixups, |
2626 | and copy in the sequence number for the explicit relocations. */ | |
252b5132 RH |
2627 | switch (fixup->reloc) |
2628 | { | |
19f78583 | 2629 | case BFD_RELOC_ALPHA_HINT: |
252b5132 | 2630 | case BFD_RELOC_GPREL32: |
19f78583 RH |
2631 | case BFD_RELOC_GPREL16: |
2632 | case BFD_RELOC_ALPHA_GPREL_HI16: | |
2633 | case BFD_RELOC_ALPHA_GPREL_LO16: | |
3765b1be RH |
2634 | case BFD_RELOC_ALPHA_GOTDTPREL16: |
2635 | case BFD_RELOC_ALPHA_DTPREL_HI16: | |
2636 | case BFD_RELOC_ALPHA_DTPREL_LO16: | |
2637 | case BFD_RELOC_ALPHA_DTPREL16: | |
2638 | case BFD_RELOC_ALPHA_GOTTPREL16: | |
2639 | case BFD_RELOC_ALPHA_TPREL_HI16: | |
2640 | case BFD_RELOC_ALPHA_TPREL_LO16: | |
2641 | case BFD_RELOC_ALPHA_TPREL16: | |
252b5132 RH |
2642 | fixP->fx_no_overflow = 1; |
2643 | break; | |
2644 | ||
19f78583 | 2645 | case BFD_RELOC_ALPHA_GPDISP_HI16: |
43b4c25e | 2646 | fixP->fx_no_overflow = 1; |
19f78583 RH |
2647 | fixP->fx_addsy = section_symbol (now_seg); |
2648 | fixP->fx_offset = 0; | |
43b4c25e | 2649 | |
19f78583 RH |
2650 | info = get_alpha_reloc_tag (insn->sequence); |
2651 | if (++info->n_master > 1) | |
2652 | as_bad (_("too many ldah insns for !gpdisp!%ld"), insn->sequence); | |
2653 | if (info->segment != now_seg) | |
2654 | as_bad (_("both insns for !gpdisp!%ld must be in the same section"), | |
2655 | insn->sequence); | |
2656 | fixP->tc_fix_data.info = info; | |
2657 | break; | |
43b4c25e | 2658 | |
19f78583 RH |
2659 | case BFD_RELOC_ALPHA_GPDISP_LO16: |
2660 | fixP->fx_no_overflow = 1; | |
43b4c25e | 2661 | |
19f78583 RH |
2662 | info = get_alpha_reloc_tag (insn->sequence); |
2663 | if (++info->n_slaves > 1) | |
2664 | as_bad (_("too many lda insns for !gpdisp!%ld"), insn->sequence); | |
43b4c25e | 2665 | if (info->segment != now_seg) |
19f78583 RH |
2666 | as_bad (_("both insns for !gpdisp!%ld must be in the same section"), |
2667 | insn->sequence); | |
43b4c25e | 2668 | fixP->tc_fix_data.info = info; |
19f78583 | 2669 | info->slaves = fixP; |
43b4c25e MM |
2670 | break; |
2671 | ||
19f78583 RH |
2672 | case BFD_RELOC_ALPHA_LITERAL: |
2673 | case BFD_RELOC_ALPHA_ELF_LITERAL: | |
2674 | fixP->fx_no_overflow = 1; | |
43b4c25e | 2675 | |
3765b1be RH |
2676 | if (insn->sequence == 0) |
2677 | break; | |
19f78583 | 2678 | info = get_alpha_reloc_tag (insn->sequence); |
3765b1be | 2679 | info->master = fixP; |
19f78583 | 2680 | info->n_master++; |
43b4c25e MM |
2681 | if (info->segment != now_seg) |
2682 | info->multi_section_p = 1; | |
19f78583 RH |
2683 | fixP->tc_fix_data.info = info; |
2684 | break; | |
43b4c25e | 2685 | |
11f45fb5 | 2686 | #ifdef RELOC_OP_P |
19f78583 | 2687 | case DUMMY_RELOC_LITUSE_ADDR: |
9e756d64 | 2688 | fixP->fx_offset = LITUSE_ALPHA_ADDR; |
19f78583 RH |
2689 | goto do_lituse; |
2690 | case DUMMY_RELOC_LITUSE_BASE: | |
9e756d64 | 2691 | fixP->fx_offset = LITUSE_ALPHA_BASE; |
19f78583 RH |
2692 | goto do_lituse; |
2693 | case DUMMY_RELOC_LITUSE_BYTOFF: | |
9e756d64 | 2694 | fixP->fx_offset = LITUSE_ALPHA_BYTOFF; |
19f78583 RH |
2695 | goto do_lituse; |
2696 | case DUMMY_RELOC_LITUSE_JSR: | |
9e756d64 | 2697 | fixP->fx_offset = LITUSE_ALPHA_JSR; |
3765b1be RH |
2698 | goto do_lituse; |
2699 | case DUMMY_RELOC_LITUSE_TLSGD: | |
9e756d64 | 2700 | fixP->fx_offset = LITUSE_ALPHA_TLSGD; |
3765b1be RH |
2701 | goto do_lituse; |
2702 | case DUMMY_RELOC_LITUSE_TLSLDM: | |
9e756d64 | 2703 | fixP->fx_offset = LITUSE_ALPHA_TLSLDM; |
3765b1be | 2704 | goto do_lituse; |
19f78583 RH |
2705 | do_lituse: |
2706 | fixP->fx_addsy = section_symbol (now_seg); | |
2707 | fixP->fx_r_type = BFD_RELOC_ALPHA_LITUSE; | |
2708 | ||
2709 | info = get_alpha_reloc_tag (insn->sequence); | |
3765b1be RH |
2710 | if (fixup->reloc == DUMMY_RELOC_LITUSE_TLSGD) |
2711 | info->saw_lu_tlsgd = 1; | |
2712 | else if (fixup->reloc == DUMMY_RELOC_LITUSE_TLSLDM) | |
2713 | info->saw_lu_tlsldm = 1; | |
2714 | if (++info->n_slaves > 1) | |
2715 | { | |
2716 | if (info->saw_lu_tlsgd) | |
2717 | as_bad (_("too many lituse insns for !lituse_tlsgd!%ld"), | |
2718 | insn->sequence); | |
2719 | else if (info->saw_lu_tlsldm) | |
2720 | as_bad (_("too many lituse insns for !lituse_tlsldm!%ld"), | |
2721 | insn->sequence); | |
2722 | } | |
19f78583 RH |
2723 | fixP->tc_fix_data.info = info; |
2724 | fixP->tc_fix_data.next_reloc = info->slaves; | |
2725 | info->slaves = fixP; | |
2726 | if (info->segment != now_seg) | |
2727 | info->multi_section_p = 1; | |
43b4c25e | 2728 | break; |
43b4c25e | 2729 | |
3765b1be RH |
2730 | case BFD_RELOC_ALPHA_TLSGD: |
2731 | fixP->fx_no_overflow = 1; | |
2732 | ||
2733 | if (insn->sequence == 0) | |
2734 | break; | |
2735 | info = get_alpha_reloc_tag (insn->sequence); | |
2736 | if (info->saw_tlsgd) | |
2737 | as_bad (_("duplicate !tlsgd!%ld"), insn->sequence); | |
2738 | else if (info->saw_tlsldm) | |
2739 | as_bad (_("sequence number in use for !tlsldm!%ld"), | |
2740 | insn->sequence); | |
2741 | else | |
2742 | info->saw_tlsgd = 1; | |
2743 | fixP->tc_fix_data.info = info; | |
2744 | break; | |
2745 | ||
2746 | case BFD_RELOC_ALPHA_TLSLDM: | |
2747 | fixP->fx_no_overflow = 1; | |
2748 | ||
2749 | if (insn->sequence == 0) | |
2750 | break; | |
2751 | info = get_alpha_reloc_tag (insn->sequence); | |
2752 | if (info->saw_tlsldm) | |
2753 | as_bad (_("duplicate !tlsldm!%ld"), insn->sequence); | |
2754 | else if (info->saw_tlsgd) | |
2755 | as_bad (_("sequence number in use for !tlsgd!%ld"), | |
2756 | insn->sequence); | |
2757 | else | |
2758 | info->saw_tlsldm = 1; | |
2759 | fixP->tc_fix_data.info = info; | |
2760 | break; | |
11f45fb5 | 2761 | #endif |
252b5132 | 2762 | default: |
32ff5c2e | 2763 | if ((int) fixup->reloc < 0) |
252b5132 RH |
2764 | { |
2765 | if (operand->flags & AXP_OPERAND_NOOVERFLOW) | |
2766 | fixP->fx_no_overflow = 1; | |
2767 | } | |
2768 | break; | |
2769 | } | |
2770 | } | |
2771 | } | |
2772 | ||
2773 | /* Given an opcode name and a pre-tokenized set of arguments, assemble | |
2774 | the insn, but do not emit it. | |
2775 | ||
2776 | Note that this implies no macros allowed, since we can't store more | |
2777 | than one insn in an insn structure. */ | |
2778 | ||
2779 | static void | |
32ff5c2e | 2780 | assemble_tokens_to_insn (opname, tok, ntok, insn) |
252b5132 RH |
2781 | const char *opname; |
2782 | const expressionS *tok; | |
2783 | int ntok; | |
2784 | struct alpha_insn *insn; | |
2785 | { | |
2786 | const struct alpha_opcode *opcode; | |
2787 | ||
2788 | /* search opcodes */ | |
2789 | opcode = (const struct alpha_opcode *) hash_find (alpha_opcode_hash, opname); | |
2790 | if (opcode) | |
2791 | { | |
2792 | int cpumatch; | |
2793 | opcode = find_opcode_match (opcode, tok, &ntok, &cpumatch); | |
2794 | if (opcode) | |
2795 | { | |
19f78583 | 2796 | assemble_insn (opcode, tok, ntok, insn, BFD_RELOC_UNUSED); |
252b5132 RH |
2797 | return; |
2798 | } | |
2799 | else if (cpumatch) | |
2800 | as_bad (_("inappropriate arguments for opcode `%s'"), opname); | |
2801 | else | |
2802 | as_bad (_("opcode `%s' not supported for target %s"), opname, | |
1aad8cf8 | 2803 | alpha_target_name); |
252b5132 RH |
2804 | } |
2805 | else | |
2806 | as_bad (_("unknown opcode `%s'"), opname); | |
2807 | } | |
2808 | ||
2809 | /* Given an opcode name and a pre-tokenized set of arguments, take the | |
2810 | opcode all the way through emission. */ | |
2811 | ||
2812 | static void | |
2813 | assemble_tokens (opname, tok, ntok, local_macros_on) | |
2814 | const char *opname; | |
2815 | const expressionS *tok; | |
2816 | int ntok; | |
2817 | int local_macros_on; | |
2818 | { | |
2819 | int found_something = 0; | |
2820 | const struct alpha_opcode *opcode; | |
2821 | const struct alpha_macro *macro; | |
2822 | int cpumatch = 1; | |
19f78583 | 2823 | bfd_reloc_code_real_type reloc = BFD_RELOC_UNUSED; |
252b5132 | 2824 | |
69108c1f | 2825 | #ifdef RELOC_OP_P |
19f78583 RH |
2826 | /* If a user-specified relocation is present, this is not a macro. */ |
2827 | if (ntok && USER_RELOC_P (tok[ntok - 1].X_op)) | |
2828 | { | |
2829 | reloc = ALPHA_RELOC_TABLE (tok[ntok - 1].X_op)->reloc; | |
2830 | ntok--; | |
2831 | } | |
69108c1f AM |
2832 | else |
2833 | #endif | |
2834 | if (local_macros_on) | |
252b5132 RH |
2835 | { |
2836 | macro = ((const struct alpha_macro *) | |
2837 | hash_find (alpha_macro_hash, opname)); | |
2838 | if (macro) | |
2839 | { | |
2840 | found_something = 1; | |
2841 | macro = find_macro_match (macro, tok, &ntok); | |
2842 | if (macro) | |
2843 | { | |
2844 | (*macro->emit) (tok, ntok, macro->arg); | |
2845 | return; | |
2846 | } | |
2847 | } | |
2848 | } | |
2849 | ||
11f45fb5 | 2850 | /* Search opcodes. */ |
252b5132 RH |
2851 | opcode = (const struct alpha_opcode *) hash_find (alpha_opcode_hash, opname); |
2852 | if (opcode) | |
2853 | { | |
2854 | found_something = 1; | |
2855 | opcode = find_opcode_match (opcode, tok, &ntok, &cpumatch); | |
2856 | if (opcode) | |
2857 | { | |
2858 | struct alpha_insn insn; | |
19f78583 RH |
2859 | assemble_insn (opcode, tok, ntok, &insn, reloc); |
2860 | ||
2861 | /* Copy the sequence number for the reloc from the reloc token. */ | |
2862 | if (reloc != BFD_RELOC_UNUSED) | |
2863 | insn.sequence = tok[ntok].X_add_number; | |
2864 | ||
252b5132 RH |
2865 | emit_insn (&insn); |
2866 | return; | |
2867 | } | |
2868 | } | |
2869 | ||
2870 | if (found_something) | |
19f78583 RH |
2871 | { |
2872 | if (cpumatch) | |
2873 | as_bad (_("inappropriate arguments for opcode `%s'"), opname); | |
2874 | else | |
2875 | as_bad (_("opcode `%s' not supported for target %s"), opname, | |
2876 | alpha_target_name); | |
2877 | } | |
252b5132 RH |
2878 | else |
2879 | as_bad (_("unknown opcode `%s'"), opname); | |
2880 | } | |
252b5132 | 2881 | \f |
11f45fb5 | 2882 | /* Some instruction sets indexed by lg(size). */ |
252b5132 RH |
2883 | static const char * const sextX_op[] = { "sextb", "sextw", "sextl", NULL }; |
2884 | static const char * const insXl_op[] = { "insbl", "inswl", "insll", "insql" }; | |
2885 | static const char * const insXh_op[] = { NULL, "inswh", "inslh", "insqh" }; | |
2886 | static const char * const extXl_op[] = { "extbl", "extwl", "extll", "extql" }; | |
2887 | static const char * const extXh_op[] = { NULL, "extwh", "extlh", "extqh" }; | |
2888 | static const char * const mskXl_op[] = { "mskbl", "mskwl", "mskll", "mskql" }; | |
2889 | static const char * const mskXh_op[] = { NULL, "mskwh", "msklh", "mskqh" }; | |
2890 | static const char * const stX_op[] = { "stb", "stw", "stl", "stq" }; | |
252b5132 RH |
2891 | static const char * const ldXu_op[] = { "ldbu", "ldwu", NULL, NULL }; |
2892 | ||
2893 | /* Implement the ldgp macro. */ | |
2894 | ||
2895 | static void | |
2896 | emit_ldgp (tok, ntok, unused) | |
2897 | const expressionS *tok; | |
446a06c9 MM |
2898 | int ntok ATTRIBUTE_UNUSED; |
2899 | const PTR unused ATTRIBUTE_UNUSED; | |
252b5132 RH |
2900 | { |
2901 | #ifdef OBJ_AOUT | |
2902 | FIXME | |
2903 | #endif | |
2904 | #if defined(OBJ_ECOFF) || defined(OBJ_ELF) | |
2905 | /* from "ldgp r1,n(r2)", generate "ldah r1,X(R2); lda r1,Y(r1)" | |
2906 | with appropriate constants and relocations. */ | |
2907 | struct alpha_insn insn; | |
2908 | expressionS newtok[3]; | |
2909 | expressionS addend; | |
2910 | ||
252b5132 RH |
2911 | #ifdef OBJ_ECOFF |
2912 | if (regno (tok[2].X_add_number) == AXP_REG_PV) | |
2913 | ecoff_set_gp_prolog_size (0); | |
2914 | #endif | |
2915 | ||
2916 | newtok[0] = tok[0]; | |
2917 | set_tok_const (newtok[1], 0); | |
2918 | newtok[2] = tok[2]; | |
2919 | ||
2920 | assemble_tokens_to_insn ("ldah", newtok, 3, &insn); | |
2921 | ||
2922 | addend = tok[1]; | |
2923 | ||
2924 | #ifdef OBJ_ECOFF | |
2925 | if (addend.X_op != O_constant) | |
2926 | as_bad (_("can not resolve expression")); | |
2927 | addend.X_op = O_symbol; | |
2928 | addend.X_add_symbol = alpha_gp_symbol; | |
2929 | #endif | |
2930 | ||
2931 | insn.nfixups = 1; | |
2932 | insn.fixups[0].exp = addend; | |
2933 | insn.fixups[0].reloc = BFD_RELOC_ALPHA_GPDISP_HI16; | |
19f78583 | 2934 | insn.sequence = next_sequence_num; |
252b5132 RH |
2935 | |
2936 | emit_insn (&insn); | |
2937 | ||
2938 | set_tok_preg (newtok[2], tok[0].X_add_number); | |
2939 | ||
2940 | assemble_tokens_to_insn ("lda", newtok, 3, &insn); | |
2941 | ||
2942 | #ifdef OBJ_ECOFF | |
2943 | addend.X_add_number += 4; | |
2944 | #endif | |
2945 | ||
2946 | insn.nfixups = 1; | |
2947 | insn.fixups[0].exp = addend; | |
2948 | insn.fixups[0].reloc = BFD_RELOC_ALPHA_GPDISP_LO16; | |
19f78583 | 2949 | insn.sequence = next_sequence_num--; |
252b5132 RH |
2950 | |
2951 | emit_insn (&insn); | |
2952 | #endif /* OBJ_ECOFF || OBJ_ELF */ | |
2953 | } | |
2954 | ||
2955 | #ifdef OBJ_EVAX | |
2956 | ||
2957 | /* Add symbol+addend to link pool. | |
2958 | Return offset from basesym to entry in link pool. | |
2959 | ||
2960 | Add new fixup only if offset isn't 16bit. */ | |
2961 | ||
2962 | valueT | |
2963 | add_to_link_pool (basesym, sym, addend) | |
2964 | symbolS *basesym; | |
2965 | symbolS *sym; | |
2966 | offsetT addend; | |
2967 | { | |
2968 | segT current_section = now_seg; | |
2969 | int current_subsec = now_subseg; | |
2970 | valueT offset; | |
2971 | bfd_reloc_code_real_type reloc_type; | |
2972 | char *p; | |
2973 | segment_info_type *seginfo = seg_info (alpha_link_section); | |
2974 | fixS *fixp; | |
2975 | ||
7dcc9865 | 2976 | offset = - *symbol_get_obj (basesym); |
252b5132 RH |
2977 | |
2978 | /* @@ This assumes all entries in a given section will be of the same | |
2979 | size... Probably correct, but unwise to rely on. */ | |
2980 | /* This must always be called with the same subsegment. */ | |
2981 | ||
2982 | if (seginfo->frchainP) | |
2983 | for (fixp = seginfo->frchainP->fix_root; | |
2984 | fixp != (fixS *) NULL; | |
2985 | fixp = fixp->fx_next, offset += 8) | |
2986 | { | |
2987 | if (fixp->fx_addsy == sym && fixp->fx_offset == addend) | |
2988 | { | |
2989 | if (range_signed_16 (offset)) | |
2990 | { | |
1aad8cf8 | 2991 | return offset; |
252b5132 RH |
2992 | } |
2993 | } | |
2994 | } | |
2995 | ||
2996 | /* Not found in 16bit signed range. */ | |
2997 | ||
2998 | subseg_set (alpha_link_section, 0); | |
2999 | p = frag_more (8); | |
3000 | memset (p, 0, 8); | |
3001 | ||
3002 | fix_new (frag_now, p - frag_now->fr_literal, 8, sym, addend, 0, | |
3003 | BFD_RELOC_64); | |
3004 | ||
3005 | subseg_set (current_section, current_subsec); | |
3006 | seginfo->literal_pool_size += 8; | |
3007 | return offset; | |
3008 | } | |
3009 | ||
3010 | #endif /* OBJ_EVAX */ | |
3011 | ||
3012 | /* Load a (partial) expression into a target register. | |
3013 | ||
3014 | If poffset is not null, after the call it will either contain | |
3015 | O_constant 0, or a 16-bit offset appropriate for any MEM format | |
3016 | instruction. In addition, pbasereg will be modified to point to | |
3017 | the base register to use in that MEM format instruction. | |
3018 | ||
3019 | In any case, *pbasereg should contain a base register to add to the | |
3020 | expression. This will normally be either AXP_REG_ZERO or | |
3021 | alpha_gp_register. Symbol addresses will always be loaded via $gp, | |
3022 | so "foo($0)" is interpreted as adding the address of foo to $0; | |
3023 | i.e. "ldq $targ, LIT($gp); addq $targ, $0, $targ". Odd, perhaps, | |
3024 | but this is what OSF/1 does. | |
3025 | ||
43b4c25e MM |
3026 | If explicit relocations of the form !literal!<number> are allowed, |
3027 | and used, then explict_reloc with be an expression pointer. | |
3028 | ||
19f78583 RH |
3029 | Finally, the return value is nonzero if the calling macro may emit |
3030 | a LITUSE reloc if otherwise appropriate; the return value is the | |
3031 | sequence number to use. */ | |
252b5132 | 3032 | |
19f78583 RH |
3033 | static long |
3034 | load_expression (targreg, exp, pbasereg, poffset) | |
252b5132 RH |
3035 | int targreg; |
3036 | const expressionS *exp; | |
3037 | int *pbasereg; | |
3038 | expressionS *poffset; | |
3039 | { | |
19f78583 | 3040 | long emit_lituse = 0; |
252b5132 RH |
3041 | offsetT addend = exp->X_add_number; |
3042 | int basereg = *pbasereg; | |
3043 | struct alpha_insn insn; | |
3044 | expressionS newtok[3]; | |
3045 | ||
3046 | switch (exp->X_op) | |
3047 | { | |
3048 | case O_symbol: | |
3049 | { | |
3050 | #ifdef OBJ_ECOFF | |
3051 | offsetT lit; | |
3052 | ||
11f45fb5 | 3053 | /* Attempt to reduce .lit load by splitting the offset from |
252b5132 RH |
3054 | its symbol when possible, but don't create a situation in |
3055 | which we'd fail. */ | |
3056 | if (!range_signed_32 (addend) && | |
3057 | (alpha_noat_on || targreg == AXP_REG_AT)) | |
3058 | { | |
3059 | lit = add_to_literal_pool (exp->X_add_symbol, addend, | |
3060 | alpha_lita_section, 8); | |
3061 | addend = 0; | |
3062 | } | |
3063 | else | |
3064 | { | |
3065 | lit = add_to_literal_pool (exp->X_add_symbol, 0, | |
3066 | alpha_lita_section, 8); | |
3067 | } | |
3068 | ||
3069 | if (lit >= 0x8000) | |
3070 | as_fatal (_("overflow in literal (.lita) table")); | |
3071 | ||
3072 | /* emit "ldq r, lit(gp)" */ | |
3073 | ||
3074 | if (basereg != alpha_gp_register && targreg == basereg) | |
3075 | { | |
3076 | if (alpha_noat_on) | |
3077 | as_bad (_("macro requires $at register while noat in effect")); | |
3078 | if (targreg == AXP_REG_AT) | |
3079 | as_bad (_("macro requires $at while $at in use")); | |
3080 | ||
3081 | set_tok_reg (newtok[0], AXP_REG_AT); | |
3082 | } | |
3083 | else | |
3084 | set_tok_reg (newtok[0], targreg); | |
3085 | set_tok_sym (newtok[1], alpha_lita_symbol, lit); | |
3086 | set_tok_preg (newtok[2], alpha_gp_register); | |
3087 | ||
3088 | assemble_tokens_to_insn ("ldq", newtok, 3, &insn); | |
3089 | ||
3090 | assert (insn.nfixups == 1); | |
3091 | insn.fixups[0].reloc = BFD_RELOC_ALPHA_LITERAL; | |
19f78583 | 3092 | insn.sequence = emit_lituse = next_sequence_num--; |
252b5132 RH |
3093 | #endif /* OBJ_ECOFF */ |
3094 | #ifdef OBJ_ELF | |
3095 | /* emit "ldq r, gotoff(gp)" */ | |
3096 | ||
3097 | if (basereg != alpha_gp_register && targreg == basereg) | |
3098 | { | |
3099 | if (alpha_noat_on) | |
3100 | as_bad (_("macro requires $at register while noat in effect")); | |
3101 | if (targreg == AXP_REG_AT) | |
3102 | as_bad (_("macro requires $at while $at in use")); | |
3103 | ||
3104 | set_tok_reg (newtok[0], AXP_REG_AT); | |
3105 | } | |
3106 | else | |
3107 | set_tok_reg (newtok[0], targreg); | |
3108 | ||
3109 | /* XXX: Disable this .got minimizing optimization so that we can get | |
3110 | better instruction offset knowledge in the compiler. This happens | |
3111 | very infrequently anyway. */ | |
66498417 KH |
3112 | if (1 |
3113 | || (!range_signed_32 (addend) | |
3114 | && (alpha_noat_on || targreg == AXP_REG_AT))) | |
252b5132 RH |
3115 | { |
3116 | newtok[1] = *exp; | |
3117 | addend = 0; | |
3118 | } | |
3119 | else | |
3120 | { | |
3121 | set_tok_sym (newtok[1], exp->X_add_symbol, 0); | |
3122 | } | |
3123 | ||
3124 | set_tok_preg (newtok[2], alpha_gp_register); | |
3125 | ||
3126 | assemble_tokens_to_insn ("ldq", newtok, 3, &insn); | |
3127 | ||
3128 | assert (insn.nfixups == 1); | |
19f78583 RH |
3129 | insn.fixups[0].reloc = BFD_RELOC_ALPHA_ELF_LITERAL; |
3130 | insn.sequence = emit_lituse = next_sequence_num--; | |
252b5132 RH |
3131 | #endif /* OBJ_ELF */ |
3132 | #ifdef OBJ_EVAX | |
3133 | offsetT link; | |
3134 | ||
3135 | /* Find symbol or symbol pointer in link section. */ | |
3136 | ||
3137 | if (exp->X_add_symbol == alpha_evax_proc.symbol) | |
3138 | { | |
3139 | if (range_signed_16 (addend)) | |
3140 | { | |
3141 | set_tok_reg (newtok[0], targreg); | |
3142 | set_tok_const (newtok[1], addend); | |
3143 | set_tok_preg (newtok[2], basereg); | |
3144 | assemble_tokens_to_insn ("lda", newtok, 3, &insn); | |
3145 | addend = 0; | |
3146 | } | |
3147 | else | |
3148 | { | |
3149 | set_tok_reg (newtok[0], targreg); | |
3150 | set_tok_const (newtok[1], 0); | |
3151 | set_tok_preg (newtok[2], basereg); | |
3152 | assemble_tokens_to_insn ("lda", newtok, 3, &insn); | |
3153 | } | |
3154 | } | |
3155 | else | |
3156 | { | |
3157 | if (!range_signed_32 (addend)) | |
3158 | { | |
3159 | link = add_to_link_pool (alpha_evax_proc.symbol, | |
3160 | exp->X_add_symbol, addend); | |
3161 | addend = 0; | |
3162 | } | |
3163 | else | |
3164 | { | |
3165 | link = add_to_link_pool (alpha_evax_proc.symbol, | |
3166 | exp->X_add_symbol, 0); | |
3167 | } | |
3168 | set_tok_reg (newtok[0], targreg); | |
3169 | set_tok_const (newtok[1], link); | |
3170 | set_tok_preg (newtok[2], basereg); | |
3171 | assemble_tokens_to_insn ("ldq", newtok, 3, &insn); | |
3172 | } | |
3173 | #endif /* OBJ_EVAX */ | |
3174 | ||
32ff5c2e | 3175 | emit_insn (&insn); |
252b5132 RH |
3176 | |
3177 | #ifndef OBJ_EVAX | |
252b5132 RH |
3178 | if (basereg != alpha_gp_register && basereg != AXP_REG_ZERO) |
3179 | { | |
3180 | /* emit "addq r, base, r" */ | |
3181 | ||
3182 | set_tok_reg (newtok[1], basereg); | |
3183 | set_tok_reg (newtok[2], targreg); | |
3184 | assemble_tokens ("addq", newtok, 3, 0); | |
3185 | } | |
3186 | #endif | |
3187 | ||
3188 | basereg = targreg; | |
3189 | } | |
3190 | break; | |
3191 | ||
3192 | case O_constant: | |
3193 | break; | |
3194 | ||
3195 | case O_subtract: | |
3196 | /* Assume that this difference expression will be resolved to an | |
1dab94dd | 3197 | absolute value and that that value will fit in 16 bits. */ |
252b5132 RH |
3198 | |
3199 | set_tok_reg (newtok[0], targreg); | |
3200 | newtok[1] = *exp; | |
3201 | set_tok_preg (newtok[2], basereg); | |
3202 | assemble_tokens ("lda", newtok, 3, 0); | |
3203 | ||
3204 | if (poffset) | |
3205 | set_tok_const (*poffset, 0); | |
3206 | return 0; | |
3207 | ||
3208 | case O_big: | |
3209 | if (exp->X_add_number > 0) | |
3210 | as_bad (_("bignum invalid; zero assumed")); | |
3211 | else | |
3212 | as_bad (_("floating point number invalid; zero assumed")); | |
3213 | addend = 0; | |
3214 | break; | |
3215 | ||
3216 | default: | |
3217 | as_bad (_("can't handle expression")); | |
3218 | addend = 0; | |
3219 | break; | |
3220 | } | |
3221 | ||
3222 | if (!range_signed_32 (addend)) | |
3223 | { | |
3224 | offsetT lit; | |
19f78583 | 3225 | long seq_num = next_sequence_num--; |
252b5132 | 3226 | |
19f78583 | 3227 | /* For 64-bit addends, just put it in the literal pool. */ |
252b5132 RH |
3228 | |
3229 | #ifdef OBJ_EVAX | |
3230 | /* emit "ldq targreg, lit(basereg)" */ | |
3231 | lit = add_to_link_pool (alpha_evax_proc.symbol, | |
3232 | section_symbol (absolute_section), addend); | |
3233 | set_tok_reg (newtok[0], targreg); | |
3234 | set_tok_const (newtok[1], lit); | |
3235 | set_tok_preg (newtok[2], alpha_gp_register); | |
3236 | assemble_tokens ("ldq", newtok, 3, 0); | |
3237 | #else | |
3238 | ||
3239 | if (alpha_lit8_section == NULL) | |
3240 | { | |
3241 | create_literal_section (".lit8", | |
3242 | &alpha_lit8_section, | |
3243 | &alpha_lit8_symbol); | |
3244 | ||
3245 | #ifdef OBJ_ECOFF | |
3246 | alpha_lit8_literal = add_to_literal_pool (alpha_lit8_symbol, 0x8000, | |
3247 | alpha_lita_section, 8); | |
3248 | if (alpha_lit8_literal >= 0x8000) | |
3249 | as_fatal (_("overflow in literal (.lita) table")); | |
3250 | #endif | |
3251 | } | |
3252 | ||
3253 | lit = add_to_literal_pool (NULL, addend, alpha_lit8_section, 8) - 0x8000; | |
3254 | if (lit >= 0x8000) | |
3255 | as_fatal (_("overflow in literal (.lit8) table")); | |
3256 | ||
3257 | /* emit "lda litreg, .lit8+0x8000" */ | |
3258 | ||
3259 | if (targreg == basereg) | |
3260 | { | |
3261 | if (alpha_noat_on) | |
3262 | as_bad (_("macro requires $at register while noat in effect")); | |
3263 | if (targreg == AXP_REG_AT) | |
3264 | as_bad (_("macro requires $at while $at in use")); | |
3265 | ||
3266 | set_tok_reg (newtok[0], AXP_REG_AT); | |
3267 | } | |
3268 | else | |
3269 | set_tok_reg (newtok[0], targreg); | |
3270 | #ifdef OBJ_ECOFF | |
3271 | set_tok_sym (newtok[1], alpha_lita_symbol, alpha_lit8_literal); | |
3272 | #endif | |
3273 | #ifdef OBJ_ELF | |
3274 | set_tok_sym (newtok[1], alpha_lit8_symbol, 0x8000); | |
3275 | #endif | |
3276 | set_tok_preg (newtok[2], alpha_gp_register); | |
3277 | ||
3278 | assemble_tokens_to_insn ("ldq", newtok, 3, &insn); | |
3279 | ||
3280 | assert (insn.nfixups == 1); | |
3281 | #ifdef OBJ_ECOFF | |
3282 | insn.fixups[0].reloc = BFD_RELOC_ALPHA_LITERAL; | |
3283 | #endif | |
3284 | #ifdef OBJ_ELF | |
3285 | insn.fixups[0].reloc = BFD_RELOC_ALPHA_ELF_LITERAL; | |
3286 | #endif | |
19f78583 | 3287 | insn.sequence = seq_num; |
252b5132 RH |
3288 | |
3289 | emit_insn (&insn); | |
3290 | ||
3291 | /* emit "ldq litreg, lit(litreg)" */ | |
3292 | ||
3293 | set_tok_const (newtok[1], lit); | |
3294 | set_tok_preg (newtok[2], newtok[0].X_add_number); | |
3295 | ||
3296 | assemble_tokens_to_insn ("ldq", newtok, 3, &insn); | |
3297 | ||
3298 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
19f78583 RH |
3299 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BASE; |
3300 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
252b5132 | 3301 | insn.nfixups++; |
19f78583 | 3302 | insn.sequence = seq_num; |
252b5132 RH |
3303 | emit_lituse = 0; |
3304 | ||
3305 | emit_insn (&insn); | |
3306 | ||
3307 | /* emit "addq litreg, base, target" */ | |
3308 | ||
3309 | if (basereg != AXP_REG_ZERO) | |
3310 | { | |
3311 | set_tok_reg (newtok[1], basereg); | |
3312 | set_tok_reg (newtok[2], targreg); | |
3313 | assemble_tokens ("addq", newtok, 3, 0); | |
3314 | } | |
3315 | #endif /* !OBJ_EVAX */ | |
3316 | ||
3317 | if (poffset) | |
3318 | set_tok_const (*poffset, 0); | |
3319 | *pbasereg = targreg; | |
3320 | } | |
3321 | else | |
3322 | { | |
3323 | offsetT low, high, extra, tmp; | |
3324 | ||
3325 | /* for 32-bit operands, break up the addend */ | |
3326 | ||
3327 | low = sign_extend_16 (addend); | |
3328 | tmp = addend - low; | |
3329 | high = sign_extend_16 (tmp >> 16); | |
3330 | ||
3331 | if (tmp - (high << 16)) | |
3332 | { | |
3333 | extra = 0x4000; | |
3334 | tmp -= 0x40000000; | |
3335 | high = sign_extend_16 (tmp >> 16); | |
3336 | } | |
3337 | else | |
3338 | extra = 0; | |
3339 | ||
3340 | set_tok_reg (newtok[0], targreg); | |
3341 | set_tok_preg (newtok[2], basereg); | |
3342 | ||
3343 | if (extra) | |
3344 | { | |
3345 | /* emit "ldah r, extra(r) */ | |
3346 | set_tok_const (newtok[1], extra); | |
3347 | assemble_tokens ("ldah", newtok, 3, 0); | |
3348 | set_tok_preg (newtok[2], basereg = targreg); | |
3349 | } | |
3350 | ||
3351 | if (high) | |
3352 | { | |
3353 | /* emit "ldah r, high(r) */ | |
3354 | set_tok_const (newtok[1], high); | |
3355 | assemble_tokens ("ldah", newtok, 3, 0); | |
3356 | basereg = targreg; | |
3357 | set_tok_preg (newtok[2], basereg); | |
3358 | } | |
3359 | ||
3360 | if ((low && !poffset) || (!poffset && basereg != targreg)) | |
3361 | { | |
3362 | /* emit "lda r, low(base)" */ | |
3363 | set_tok_const (newtok[1], low); | |
3364 | assemble_tokens ("lda", newtok, 3, 0); | |
3365 | basereg = targreg; | |
3366 | low = 0; | |
3367 | } | |
3368 | ||
3369 | if (poffset) | |
3370 | set_tok_const (*poffset, low); | |
3371 | *pbasereg = basereg; | |
3372 | } | |
3373 | ||
3374 | return emit_lituse; | |
3375 | } | |
3376 | ||
3377 | /* The lda macro differs from the lda instruction in that it handles | |
3378 | most simple expressions, particualrly symbol address loads and | |
3379 | large constants. */ | |
3380 | ||
3381 | static void | |
19f78583 | 3382 | emit_lda (tok, ntok, unused) |
252b5132 RH |
3383 | const expressionS *tok; |
3384 | int ntok; | |
19f78583 | 3385 | const PTR unused ATTRIBUTE_UNUSED; |
252b5132 RH |
3386 | { |
3387 | int basereg; | |
3388 | ||
3389 | if (ntok == 2) | |
3390 | basereg = (tok[1].X_op == O_constant ? AXP_REG_ZERO : alpha_gp_register); | |
3391 | else | |
3392 | basereg = tok[2].X_add_number; | |
3393 | ||
19f78583 | 3394 | (void) load_expression (tok[0].X_add_number, &tok[1], &basereg, NULL); |
252b5132 RH |
3395 | } |
3396 | ||
3397 | /* The ldah macro differs from the ldah instruction in that it has $31 | |
3398 | as an implied base register. */ | |
3399 | ||
3400 | static void | |
3401 | emit_ldah (tok, ntok, unused) | |
3402 | const expressionS *tok; | |
446a06c9 MM |
3403 | int ntok ATTRIBUTE_UNUSED; |
3404 | const PTR unused ATTRIBUTE_UNUSED; | |
252b5132 RH |
3405 | { |
3406 | expressionS newtok[3]; | |
3407 | ||
3408 | newtok[0] = tok[0]; | |
3409 | newtok[1] = tok[1]; | |
3410 | set_tok_preg (newtok[2], AXP_REG_ZERO); | |
3411 | ||
3412 | assemble_tokens ("ldah", newtok, 3, 0); | |
3413 | } | |
3414 | ||
3415 | /* Handle all "simple" integer register loads -- ldq, ldq_l, ldq_u, | |
3416 | etc. They differ from the real instructions in that they do simple | |
3417 | expressions like the lda macro. */ | |
3418 | ||
3419 | static void | |
3420 | emit_ir_load (tok, ntok, opname) | |
3421 | const expressionS *tok; | |
3422 | int ntok; | |
3423 | const PTR opname; | |
3424 | { | |
19f78583 RH |
3425 | int basereg; |
3426 | long lituse; | |
252b5132 RH |
3427 | expressionS newtok[3]; |
3428 | struct alpha_insn insn; | |
3429 | ||
3430 | if (ntok == 2) | |
3431 | basereg = (tok[1].X_op == O_constant ? AXP_REG_ZERO : alpha_gp_register); | |
3432 | else | |
3433 | basereg = tok[2].X_add_number; | |
3434 | ||
3435 | lituse = load_expression (tok[0].X_add_number, &tok[1], &basereg, | |
19f78583 | 3436 | &newtok[1]); |
252b5132 RH |
3437 | |
3438 | newtok[0] = tok[0]; | |
3439 | set_tok_preg (newtok[2], basereg); | |
3440 | ||
32ff5c2e | 3441 | assemble_tokens_to_insn ((const char *) opname, newtok, 3, &insn); |
252b5132 RH |
3442 | |
3443 | if (lituse) | |
3444 | { | |
3445 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
19f78583 RH |
3446 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BASE; |
3447 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
252b5132 | 3448 | insn.nfixups++; |
19f78583 | 3449 | insn.sequence = lituse; |
252b5132 RH |
3450 | } |
3451 | ||
3452 | emit_insn (&insn); | |
3453 | } | |
3454 | ||
3455 | /* Handle fp register loads, and both integer and fp register stores. | |
3456 | Again, we handle simple expressions. */ | |
3457 | ||
3458 | static void | |
3459 | emit_loadstore (tok, ntok, opname) | |
3460 | const expressionS *tok; | |
3461 | int ntok; | |
3462 | const PTR opname; | |
3463 | { | |
19f78583 RH |
3464 | int basereg; |
3465 | long lituse; | |
252b5132 RH |
3466 | expressionS newtok[3]; |
3467 | struct alpha_insn insn; | |
3468 | ||
3469 | if (ntok == 2) | |
3470 | basereg = (tok[1].X_op == O_constant ? AXP_REG_ZERO : alpha_gp_register); | |
3471 | else | |
3472 | basereg = tok[2].X_add_number; | |
3473 | ||
32ff5c2e | 3474 | if (tok[1].X_op != O_constant || !range_signed_16 (tok[1].X_add_number)) |
252b5132 RH |
3475 | { |
3476 | if (alpha_noat_on) | |
3477 | as_bad (_("macro requires $at register while noat in effect")); | |
3478 | ||
19f78583 | 3479 | lituse = load_expression (AXP_REG_AT, &tok[1], &basereg, &newtok[1]); |
252b5132 RH |
3480 | } |
3481 | else | |
3482 | { | |
3483 | newtok[1] = tok[1]; | |
3484 | lituse = 0; | |
3485 | } | |
3486 | ||
3487 | newtok[0] = tok[0]; | |
3488 | set_tok_preg (newtok[2], basereg); | |
3489 | ||
32ff5c2e | 3490 | assemble_tokens_to_insn ((const char *) opname, newtok, 3, &insn); |
252b5132 RH |
3491 | |
3492 | if (lituse) | |
3493 | { | |
3494 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
19f78583 RH |
3495 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BASE; |
3496 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
252b5132 | 3497 | insn.nfixups++; |
19f78583 | 3498 | insn.sequence = lituse; |
252b5132 RH |
3499 | } |
3500 | ||
3501 | emit_insn (&insn); | |
3502 | } | |
3503 | ||
3504 | /* Load a half-word or byte as an unsigned value. */ | |
3505 | ||
3506 | static void | |
3507 | emit_ldXu (tok, ntok, vlgsize) | |
3508 | const expressionS *tok; | |
3509 | int ntok; | |
3510 | const PTR vlgsize; | |
3511 | { | |
3512 | if (alpha_target & AXP_OPCODE_BWX) | |
32ff5c2e | 3513 | emit_ir_load (tok, ntok, ldXu_op[(long) vlgsize]); |
252b5132 RH |
3514 | else |
3515 | { | |
3516 | expressionS newtok[3]; | |
19f78583 RH |
3517 | struct alpha_insn insn; |
3518 | int basereg; | |
3519 | long lituse; | |
43b4c25e | 3520 | |
252b5132 RH |
3521 | if (alpha_noat_on) |
3522 | as_bad (_("macro requires $at register while noat in effect")); | |
3523 | ||
19f78583 RH |
3524 | if (ntok == 2) |
3525 | basereg = (tok[1].X_op == O_constant | |
3526 | ? AXP_REG_ZERO : alpha_gp_register); | |
3527 | else | |
3528 | basereg = tok[2].X_add_number; | |
3529 | ||
252b5132 RH |
3530 | /* emit "lda $at, exp" */ |
3531 | ||
19f78583 | 3532 | lituse = load_expression (AXP_REG_AT, &tok[1], &basereg, NULL); |
252b5132 RH |
3533 | |
3534 | /* emit "ldq_u targ, 0($at)" */ | |
3535 | ||
3536 | newtok[0] = tok[0]; | |
3537 | set_tok_const (newtok[1], 0); | |
19f78583 RH |
3538 | set_tok_preg (newtok[2], basereg); |
3539 | assemble_tokens_to_insn ("ldq_u", newtok, 3, &insn); | |
3540 | ||
3541 | if (lituse) | |
3542 | { | |
3543 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
3544 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BASE; | |
3545 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
3546 | insn.nfixups++; | |
3547 | insn.sequence = lituse; | |
3548 | } | |
3549 | ||
3550 | emit_insn (&insn); | |
252b5132 RH |
3551 | |
3552 | /* emit "extXl targ, $at, targ" */ | |
3553 | ||
19f78583 | 3554 | set_tok_reg (newtok[1], basereg); |
252b5132 | 3555 | newtok[2] = newtok[0]; |
19f78583 RH |
3556 | assemble_tokens_to_insn (extXl_op[(long) vlgsize], newtok, 3, &insn); |
3557 | ||
3558 | if (lituse) | |
3559 | { | |
3560 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
3561 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BYTOFF; | |
3562 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
3563 | insn.nfixups++; | |
3564 | insn.sequence = lituse; | |
3565 | } | |
3566 | ||
3567 | emit_insn (&insn); | |
252b5132 RH |
3568 | } |
3569 | } | |
3570 | ||
3571 | /* Load a half-word or byte as a signed value. */ | |
3572 | ||
3573 | static void | |
3574 | emit_ldX (tok, ntok, vlgsize) | |
3575 | const expressionS *tok; | |
3576 | int ntok; | |
3577 | const PTR vlgsize; | |
3578 | { | |
3579 | emit_ldXu (tok, ntok, vlgsize); | |
32ff5c2e | 3580 | assemble_tokens (sextX_op[(long) vlgsize], tok, 1, 1); |
252b5132 RH |
3581 | } |
3582 | ||
3583 | /* Load an integral value from an unaligned address as an unsigned | |
3584 | value. */ | |
3585 | ||
3586 | static void | |
3587 | emit_uldXu (tok, ntok, vlgsize) | |
3588 | const expressionS *tok; | |
3589 | int ntok; | |
3590 | const PTR vlgsize; | |
3591 | { | |
32ff5c2e | 3592 | long lgsize = (long) vlgsize; |
252b5132 RH |
3593 | expressionS newtok[3]; |
3594 | ||
3595 | if (alpha_noat_on) | |
3596 | as_bad (_("macro requires $at register while noat in effect")); | |
3597 | ||
3598 | /* emit "lda $at, exp" */ | |
3599 | ||
3600 | memcpy (newtok, tok, sizeof (expressionS) * ntok); | |
3601 | newtok[0].X_add_number = AXP_REG_AT; | |
3602 | assemble_tokens ("lda", newtok, ntok, 1); | |
3603 | ||
3604 | /* emit "ldq_u $t9, 0($at)" */ | |
3605 | ||
3606 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3607 | set_tok_const (newtok[1], 0); | |
3608 | set_tok_preg (newtok[2], AXP_REG_AT); | |
3609 | assemble_tokens ("ldq_u", newtok, 3, 1); | |
3610 | ||
3611 | /* emit "ldq_u $t10, size-1($at)" */ | |
3612 | ||
3613 | set_tok_reg (newtok[0], AXP_REG_T10); | |
66498417 | 3614 | set_tok_const (newtok[1], (1 << lgsize) - 1); |
252b5132 RH |
3615 | assemble_tokens ("ldq_u", newtok, 3, 1); |
3616 | ||
3617 | /* emit "extXl $t9, $at, $t9" */ | |
3618 | ||
3619 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3620 | set_tok_reg (newtok[1], AXP_REG_AT); | |
3621 | set_tok_reg (newtok[2], AXP_REG_T9); | |
3622 | assemble_tokens (extXl_op[lgsize], newtok, 3, 1); | |
3623 | ||
3624 | /* emit "extXh $t10, $at, $t10" */ | |
3625 | ||
3626 | set_tok_reg (newtok[0], AXP_REG_T10); | |
3627 | set_tok_reg (newtok[2], AXP_REG_T10); | |
3628 | assemble_tokens (extXh_op[lgsize], newtok, 3, 1); | |
3629 | ||
3630 | /* emit "or $t9, $t10, targ" */ | |
3631 | ||
3632 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3633 | set_tok_reg (newtok[1], AXP_REG_T10); | |
3634 | newtok[2] = tok[0]; | |
3635 | assemble_tokens ("or", newtok, 3, 1); | |
3636 | } | |
3637 | ||
3638 | /* Load an integral value from an unaligned address as a signed value. | |
3639 | Note that quads should get funneled to the unsigned load since we | |
3640 | don't have to do the sign extension. */ | |
3641 | ||
3642 | static void | |
3643 | emit_uldX (tok, ntok, vlgsize) | |
3644 | const expressionS *tok; | |
3645 | int ntok; | |
3646 | const PTR vlgsize; | |
3647 | { | |
3648 | emit_uldXu (tok, ntok, vlgsize); | |
32ff5c2e | 3649 | assemble_tokens (sextX_op[(long) vlgsize], tok, 1, 1); |
252b5132 RH |
3650 | } |
3651 | ||
3652 | /* Implement the ldil macro. */ | |
3653 | ||
3654 | static void | |
3655 | emit_ldil (tok, ntok, unused) | |
3656 | const expressionS *tok; | |
3657 | int ntok; | |
446a06c9 | 3658 | const PTR unused ATTRIBUTE_UNUSED; |
252b5132 RH |
3659 | { |
3660 | expressionS newtok[2]; | |
3661 | ||
bc805888 | 3662 | memcpy (newtok, tok, sizeof (newtok)); |
252b5132 RH |
3663 | newtok[1].X_add_number = sign_extend_32 (tok[1].X_add_number); |
3664 | ||
3665 | assemble_tokens ("lda", newtok, ntok, 1); | |
3666 | } | |
3667 | ||
3668 | /* Store a half-word or byte. */ | |
3669 | ||
3670 | static void | |
3671 | emit_stX (tok, ntok, vlgsize) | |
3672 | const expressionS *tok; | |
3673 | int ntok; | |
3674 | const PTR vlgsize; | |
3675 | { | |
32ff5c2e | 3676 | int lgsize = (int) (long) vlgsize; |
252b5132 RH |
3677 | |
3678 | if (alpha_target & AXP_OPCODE_BWX) | |
3679 | emit_loadstore (tok, ntok, stX_op[lgsize]); | |
3680 | else | |
3681 | { | |
3682 | expressionS newtok[3]; | |
19f78583 RH |
3683 | struct alpha_insn insn; |
3684 | int basereg; | |
3685 | long lituse; | |
252b5132 RH |
3686 | |
3687 | if (alpha_noat_on) | |
32ff5c2e | 3688 | as_bad (_("macro requires $at register while noat in effect")); |
252b5132 | 3689 | |
19f78583 RH |
3690 | if (ntok == 2) |
3691 | basereg = (tok[1].X_op == O_constant | |
3692 | ? AXP_REG_ZERO : alpha_gp_register); | |
3693 | else | |
3694 | basereg = tok[2].X_add_number; | |
3695 | ||
252b5132 RH |
3696 | /* emit "lda $at, exp" */ |
3697 | ||
19f78583 | 3698 | lituse = load_expression (AXP_REG_AT, &tok[1], &basereg, NULL); |
252b5132 RH |
3699 | |
3700 | /* emit "ldq_u $t9, 0($at)" */ | |
3701 | ||
3702 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3703 | set_tok_const (newtok[1], 0); | |
19f78583 RH |
3704 | set_tok_preg (newtok[2], basereg); |
3705 | assemble_tokens_to_insn ("ldq_u", newtok, 3, &insn); | |
3706 | ||
3707 | if (lituse) | |
3708 | { | |
3709 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
3710 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BASE; | |
3711 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
3712 | insn.nfixups++; | |
3713 | insn.sequence = lituse; | |
3714 | } | |
3715 | ||
3716 | emit_insn (&insn); | |
252b5132 RH |
3717 | |
3718 | /* emit "insXl src, $at, $t10" */ | |
3719 | ||
3720 | newtok[0] = tok[0]; | |
19f78583 | 3721 | set_tok_reg (newtok[1], basereg); |
252b5132 | 3722 | set_tok_reg (newtok[2], AXP_REG_T10); |
19f78583 RH |
3723 | assemble_tokens_to_insn (insXl_op[lgsize], newtok, 3, &insn); |
3724 | ||
3725 | if (lituse) | |
3726 | { | |
3727 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
3728 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BYTOFF; | |
3729 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
3730 | insn.nfixups++; | |
3731 | insn.sequence = lituse; | |
3732 | } | |
3733 | ||
3734 | emit_insn (&insn); | |
252b5132 RH |
3735 | |
3736 | /* emit "mskXl $t9, $at, $t9" */ | |
3737 | ||
3738 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3739 | newtok[2] = newtok[0]; | |
19f78583 RH |
3740 | assemble_tokens_to_insn (mskXl_op[lgsize], newtok, 3, &insn); |
3741 | ||
3742 | if (lituse) | |
3743 | { | |
3744 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
3745 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BYTOFF; | |
3746 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
3747 | insn.nfixups++; | |
3748 | insn.sequence = lituse; | |
3749 | } | |
3750 | ||
3751 | emit_insn (&insn); | |
252b5132 RH |
3752 | |
3753 | /* emit "or $t9, $t10, $t9" */ | |
3754 | ||
3755 | set_tok_reg (newtok[1], AXP_REG_T10); | |
3756 | assemble_tokens ("or", newtok, 3, 1); | |
3757 | ||
3758 | /* emit "stq_u $t9, 0($at) */ | |
3759 | ||
19f78583 | 3760 | set_tok_const(newtok[1], 0); |
252b5132 | 3761 | set_tok_preg (newtok[2], AXP_REG_AT); |
19f78583 RH |
3762 | assemble_tokens_to_insn ("stq_u", newtok, 3, &insn); |
3763 | ||
3764 | if (lituse) | |
3765 | { | |
3766 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
3767 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BASE; | |
3768 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
3769 | insn.nfixups++; | |
3770 | insn.sequence = lituse; | |
3771 | } | |
3772 | ||
3773 | emit_insn (&insn); | |
252b5132 RH |
3774 | } |
3775 | } | |
3776 | ||
3777 | /* Store an integer to an unaligned address. */ | |
3778 | ||
3779 | static void | |
3780 | emit_ustX (tok, ntok, vlgsize) | |
3781 | const expressionS *tok; | |
3782 | int ntok; | |
3783 | const PTR vlgsize; | |
3784 | { | |
32ff5c2e | 3785 | int lgsize = (int) (long) vlgsize; |
252b5132 RH |
3786 | expressionS newtok[3]; |
3787 | ||
3788 | /* emit "lda $at, exp" */ | |
3789 | ||
3790 | memcpy (newtok, tok, sizeof (expressionS) * ntok); | |
3791 | newtok[0].X_add_number = AXP_REG_AT; | |
3792 | assemble_tokens ("lda", newtok, ntok, 1); | |
3793 | ||
3794 | /* emit "ldq_u $9, 0($at)" */ | |
3795 | ||
3796 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3797 | set_tok_const (newtok[1], 0); | |
3798 | set_tok_preg (newtok[2], AXP_REG_AT); | |
3799 | assemble_tokens ("ldq_u", newtok, 3, 1); | |
3800 | ||
3801 | /* emit "ldq_u $10, size-1($at)" */ | |
3802 | ||
3803 | set_tok_reg (newtok[0], AXP_REG_T10); | |
66498417 | 3804 | set_tok_const (newtok[1], (1 << lgsize) - 1); |
252b5132 RH |
3805 | assemble_tokens ("ldq_u", newtok, 3, 1); |
3806 | ||
3807 | /* emit "insXl src, $at, $t11" */ | |
3808 | ||
3809 | newtok[0] = tok[0]; | |
3810 | set_tok_reg (newtok[1], AXP_REG_AT); | |
3811 | set_tok_reg (newtok[2], AXP_REG_T11); | |
3812 | assemble_tokens (insXl_op[lgsize], newtok, 3, 1); | |
3813 | ||
3814 | /* emit "insXh src, $at, $t12" */ | |
3815 | ||
3816 | set_tok_reg (newtok[2], AXP_REG_T12); | |
3817 | assemble_tokens (insXh_op[lgsize], newtok, 3, 1); | |
3818 | ||
3819 | /* emit "mskXl $t9, $at, $t9" */ | |
3820 | ||
3821 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3822 | newtok[2] = newtok[0]; | |
3823 | assemble_tokens (mskXl_op[lgsize], newtok, 3, 1); | |
3824 | ||
3825 | /* emit "mskXh $t10, $at, $t10" */ | |
3826 | ||
3827 | set_tok_reg (newtok[0], AXP_REG_T10); | |
3828 | newtok[2] = newtok[0]; | |
3829 | assemble_tokens (mskXh_op[lgsize], newtok, 3, 1); | |
3830 | ||
3831 | /* emit "or $t9, $t11, $t9" */ | |
3832 | ||
3833 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3834 | set_tok_reg (newtok[1], AXP_REG_T11); | |
3835 | newtok[2] = newtok[0]; | |
3836 | assemble_tokens ("or", newtok, 3, 1); | |
3837 | ||
3838 | /* emit "or $t10, $t12, $t10" */ | |
3839 | ||
3840 | set_tok_reg (newtok[0], AXP_REG_T10); | |
3841 | set_tok_reg (newtok[1], AXP_REG_T12); | |
3842 | newtok[2] = newtok[0]; | |
3843 | assemble_tokens ("or", newtok, 3, 1); | |
3844 | ||
3845 | /* emit "stq_u $t9, 0($at)" */ | |
3846 | ||
3847 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3848 | set_tok_const (newtok[1], 0); | |
3849 | set_tok_preg (newtok[2], AXP_REG_AT); | |
3850 | assemble_tokens ("stq_u", newtok, 3, 1); | |
3851 | ||
3852 | /* emit "stq_u $t10, size-1($at)" */ | |
3853 | ||
3854 | set_tok_reg (newtok[0], AXP_REG_T10); | |
66498417 | 3855 | set_tok_const (newtok[1], (1 << lgsize) - 1); |
252b5132 RH |
3856 | assemble_tokens ("stq_u", newtok, 3, 1); |
3857 | } | |
3858 | ||
3859 | /* Sign extend a half-word or byte. The 32-bit sign extend is | |
3860 | implemented as "addl $31, $r, $t" in the opcode table. */ | |
3861 | ||
3862 | static void | |
3863 | emit_sextX (tok, ntok, vlgsize) | |
3864 | const expressionS *tok; | |
3865 | int ntok; | |
3866 | const PTR vlgsize; | |
3867 | { | |
32ff5c2e | 3868 | long lgsize = (long) vlgsize; |
252b5132 RH |
3869 | |
3870 | if (alpha_target & AXP_OPCODE_BWX) | |
3871 | assemble_tokens (sextX_op[lgsize], tok, ntok, 0); | |
3872 | else | |
3873 | { | |
3874 | int bitshift = 64 - 8 * (1 << lgsize); | |
3875 | expressionS newtok[3]; | |
3876 | ||
3877 | /* emit "sll src,bits,dst" */ | |
3878 | ||
3879 | newtok[0] = tok[0]; | |
3880 | set_tok_const (newtok[1], bitshift); | |
3881 | newtok[2] = tok[ntok - 1]; | |
3882 | assemble_tokens ("sll", newtok, 3, 1); | |
3883 | ||
3884 | /* emit "sra dst,bits,dst" */ | |
3885 | ||
3886 | newtok[0] = newtok[2]; | |
3887 | assemble_tokens ("sra", newtok, 3, 1); | |
3888 | } | |
3889 | } | |
3890 | ||
3891 | /* Implement the division and modulus macros. */ | |
3892 | ||
3893 | #ifdef OBJ_EVAX | |
3894 | ||
3895 | /* Make register usage like in normal procedure call. | |
3896 | Don't clobber PV and RA. */ | |
3897 | ||
3898 | static void | |
3899 | emit_division (tok, ntok, symname) | |
3900 | const expressionS *tok; | |
3901 | int ntok; | |
3902 | const PTR symname; | |
3903 | { | |
3904 | /* DIVISION and MODULUS. Yech. | |
11f45fb5 NC |
3905 | |
3906 | Convert | |
3907 | OP x,y,result | |
3908 | to | |
3909 | mov x,R16 # if x != R16 | |
3910 | mov y,R17 # if y != R17 | |
3911 | lda AT,__OP | |
3912 | jsr AT,(AT),0 | |
3913 | mov R0,result | |
3914 | ||
3915 | with appropriate optimizations if R0,R16,R17 are the registers | |
3916 | specified by the compiler. */ | |
252b5132 RH |
3917 | |
3918 | int xr, yr, rr; | |
3919 | symbolS *sym; | |
3920 | expressionS newtok[3]; | |
3921 | ||
3922 | xr = regno (tok[0].X_add_number); | |
3923 | yr = regno (tok[1].X_add_number); | |
3924 | ||
3925 | if (ntok < 3) | |
3926 | rr = xr; | |
3927 | else | |
3928 | rr = regno (tok[2].X_add_number); | |
3929 | ||
11f45fb5 | 3930 | /* Move the operands into the right place. */ |
252b5132 RH |
3931 | if (yr == AXP_REG_R16 && xr == AXP_REG_R17) |
3932 | { | |
11f45fb5 | 3933 | /* They are in exactly the wrong order -- swap through AT. */ |
252b5132 RH |
3934 | |
3935 | if (alpha_noat_on) | |
3936 | as_bad (_("macro requires $at register while noat in effect")); | |
3937 | ||
3938 | set_tok_reg (newtok[0], AXP_REG_R16); | |
3939 | set_tok_reg (newtok[1], AXP_REG_AT); | |
3940 | assemble_tokens ("mov", newtok, 2, 1); | |
3941 | ||
3942 | set_tok_reg (newtok[0], AXP_REG_R17); | |
3943 | set_tok_reg (newtok[1], AXP_REG_R16); | |
3944 | assemble_tokens ("mov", newtok, 2, 1); | |
3945 | ||
3946 | set_tok_reg (newtok[0], AXP_REG_AT); | |
3947 | set_tok_reg (newtok[1], AXP_REG_R17); | |
3948 | assemble_tokens ("mov", newtok, 2, 1); | |
3949 | } | |
3950 | else | |
3951 | { | |
3952 | if (yr == AXP_REG_R16) | |
3953 | { | |
3954 | set_tok_reg (newtok[0], AXP_REG_R16); | |
3955 | set_tok_reg (newtok[1], AXP_REG_R17); | |
3956 | assemble_tokens ("mov", newtok, 2, 1); | |
3957 | } | |
3958 | ||
3959 | if (xr != AXP_REG_R16) | |
3960 | { | |
3961 | set_tok_reg (newtok[0], xr); | |
3962 | set_tok_reg (newtok[1], AXP_REG_R16); | |
1aad8cf8 | 3963 | assemble_tokens ("mov", newtok, 2, 1); |
252b5132 RH |
3964 | } |
3965 | ||
3966 | if (yr != AXP_REG_R16 && yr != AXP_REG_R17) | |
3967 | { | |
3968 | set_tok_reg (newtok[0], yr); | |
3969 | set_tok_reg (newtok[1], AXP_REG_R17); | |
3970 | assemble_tokens ("mov", newtok, 2, 1); | |
3971 | } | |
3972 | } | |
3973 | ||
32ff5c2e | 3974 | sym = symbol_find_or_make ((const char *) symname); |
252b5132 RH |
3975 | |
3976 | set_tok_reg (newtok[0], AXP_REG_AT); | |
3977 | set_tok_sym (newtok[1], sym, 0); | |
3978 | assemble_tokens ("lda", newtok, 2, 1); | |
3979 | ||
11f45fb5 | 3980 | /* Call the division routine. */ |
252b5132 RH |
3981 | set_tok_reg (newtok[0], AXP_REG_AT); |
3982 | set_tok_cpreg (newtok[1], AXP_REG_AT); | |
3983 | set_tok_const (newtok[2], 0); | |
3984 | assemble_tokens ("jsr", newtok, 3, 1); | |
3985 | ||
11f45fb5 | 3986 | /* Move the result to the right place. */ |
252b5132 RH |
3987 | if (rr != AXP_REG_R0) |
3988 | { | |
3989 | set_tok_reg (newtok[0], AXP_REG_R0); | |
3990 | set_tok_reg (newtok[1], rr); | |
3991 | assemble_tokens ("mov", newtok, 2, 1); | |
3992 | } | |
3993 | } | |
3994 | ||
3995 | #else /* !OBJ_EVAX */ | |
3996 | ||
3997 | static void | |
3998 | emit_division (tok, ntok, symname) | |
3999 | const expressionS *tok; | |
4000 | int ntok; | |
4001 | const PTR symname; | |
4002 | { | |
4003 | /* DIVISION and MODULUS. Yech. | |
11f45fb5 NC |
4004 | Convert |
4005 | OP x,y,result | |
4006 | to | |
4007 | lda pv,__OP | |
4008 | mov x,t10 | |
4009 | mov y,t11 | |
4010 | jsr t9,(pv),__OP | |
4011 | mov t12,result | |
4012 | ||
4013 | with appropriate optimizations if t10,t11,t12 are the registers | |
4014 | specified by the compiler. */ | |
252b5132 RH |
4015 | |
4016 | int xr, yr, rr; | |
4017 | symbolS *sym; | |
4018 | expressionS newtok[3]; | |
4019 | ||
4020 | xr = regno (tok[0].X_add_number); | |
4021 | yr = regno (tok[1].X_add_number); | |
4022 | ||
4023 | if (ntok < 3) | |
4024 | rr = xr; | |
4025 | else | |
4026 | rr = regno (tok[2].X_add_number); | |
4027 | ||
32ff5c2e | 4028 | sym = symbol_find_or_make ((const char *) symname); |
252b5132 | 4029 | |
11f45fb5 | 4030 | /* Move the operands into the right place. */ |
252b5132 RH |
4031 | if (yr == AXP_REG_T10 && xr == AXP_REG_T11) |
4032 | { | |
11f45fb5 | 4033 | /* They are in exactly the wrong order -- swap through AT. */ |
252b5132 RH |
4034 | if (alpha_noat_on) |
4035 | as_bad (_("macro requires $at register while noat in effect")); | |
4036 | ||
4037 | set_tok_reg (newtok[0], AXP_REG_T10); | |
4038 | set_tok_reg (newtok[1], AXP_REG_AT); | |
4039 | assemble_tokens ("mov", newtok, 2, 1); | |
4040 | ||
4041 | set_tok_reg (newtok[0], AXP_REG_T11); | |
4042 | set_tok_reg (newtok[1], AXP_REG_T10); | |
4043 | assemble_tokens ("mov", newtok, 2, 1); | |
4044 | ||
4045 | set_tok_reg (newtok[0], AXP_REG_AT); | |
4046 | set_tok_reg (newtok[1], AXP_REG_T11); | |
4047 | assemble_tokens ("mov", newtok, 2, 1); | |
4048 | } | |
4049 | else | |
4050 | { | |
4051 | if (yr == AXP_REG_T10) | |
4052 | { | |
4053 | set_tok_reg (newtok[0], AXP_REG_T10); | |
4054 | set_tok_reg (newtok[1], AXP_REG_T11); | |
4055 | assemble_tokens ("mov", newtok, 2, 1); | |
4056 | } | |
4057 | ||
4058 | if (xr != AXP_REG_T10) | |
4059 | { | |
4060 | set_tok_reg (newtok[0], xr); | |
4061 | set_tok_reg (newtok[1], AXP_REG_T10); | |
1aad8cf8 | 4062 | assemble_tokens ("mov", newtok, 2, 1); |
252b5132 RH |
4063 | } |
4064 | ||
4065 | if (yr != AXP_REG_T10 && yr != AXP_REG_T11) | |
4066 | { | |
4067 | set_tok_reg (newtok[0], yr); | |
4068 | set_tok_reg (newtok[1], AXP_REG_T11); | |
4069 | assemble_tokens ("mov", newtok, 2, 1); | |
4070 | } | |
4071 | } | |
4072 | ||
11f45fb5 | 4073 | /* Call the division routine. */ |
252b5132 RH |
4074 | set_tok_reg (newtok[0], AXP_REG_T9); |
4075 | set_tok_sym (newtok[1], sym, 0); | |
4076 | assemble_tokens ("jsr", newtok, 2, 1); | |
4077 | ||
11f45fb5 | 4078 | /* Reload the GP register. */ |
252b5132 RH |
4079 | #ifdef OBJ_AOUT |
4080 | FIXME | |
4081 | #endif | |
4082 | #if defined(OBJ_ECOFF) || defined(OBJ_ELF) | |
4083 | set_tok_reg (newtok[0], alpha_gp_register); | |
4084 | set_tok_const (newtok[1], 0); | |
4085 | set_tok_preg (newtok[2], AXP_REG_T9); | |
4086 | assemble_tokens ("ldgp", newtok, 3, 1); | |
4087 | #endif | |
4088 | ||
11f45fb5 | 4089 | /* Move the result to the right place. */ |
252b5132 RH |
4090 | if (rr != AXP_REG_T12) |
4091 | { | |
4092 | set_tok_reg (newtok[0], AXP_REG_T12); | |
4093 | set_tok_reg (newtok[1], rr); | |
4094 | assemble_tokens ("mov", newtok, 2, 1); | |
4095 | } | |
4096 | } | |
4097 | ||
4098 | #endif /* !OBJ_EVAX */ | |
4099 | ||
4100 | /* The jsr and jmp macros differ from their instruction counterparts | |
4101 | in that they can load the target address and default most | |
4102 | everything. */ | |
4103 | ||
4104 | static void | |
4105 | emit_jsrjmp (tok, ntok, vopname) | |
4106 | const expressionS *tok; | |
4107 | int ntok; | |
4108 | const PTR vopname; | |
4109 | { | |
4110 | const char *opname = (const char *) vopname; | |
4111 | struct alpha_insn insn; | |
4112 | expressionS newtok[3]; | |
19f78583 RH |
4113 | int r, tokidx = 0; |
4114 | long lituse = 0; | |
43b4c25e | 4115 | |
252b5132 RH |
4116 | if (tokidx < ntok && tok[tokidx].X_op == O_register) |
4117 | r = regno (tok[tokidx++].X_add_number); | |
4118 | else | |
4119 | r = strcmp (opname, "jmp") == 0 ? AXP_REG_ZERO : AXP_REG_RA; | |
4120 | ||
4121 | set_tok_reg (newtok[0], r); | |
4122 | ||
4123 | if (tokidx < ntok && | |
4124 | (tok[tokidx].X_op == O_pregister || tok[tokidx].X_op == O_cpregister)) | |
4125 | r = regno (tok[tokidx++].X_add_number); | |
4126 | #ifdef OBJ_EVAX | |
4127 | /* keep register if jsr $n.<sym> */ | |
4128 | #else | |
4129 | else | |
4130 | { | |
4131 | int basereg = alpha_gp_register; | |
19f78583 | 4132 | lituse = load_expression (r = AXP_REG_PV, &tok[tokidx], &basereg, NULL); |
252b5132 RH |
4133 | } |
4134 | #endif | |
4135 | ||
4136 | set_tok_cpreg (newtok[1], r); | |
4137 | ||
4138 | #ifdef OBJ_EVAX | |
4139 | /* FIXME: Add hint relocs to BFD for evax. */ | |
4140 | #else | |
4141 | if (tokidx < ntok) | |
4142 | newtok[2] = tok[tokidx]; | |
4143 | else | |
4144 | #endif | |
4145 | set_tok_const (newtok[2], 0); | |
4146 | ||
4147 | assemble_tokens_to_insn (opname, newtok, 3, &insn); | |
4148 | ||
252b5132 RH |
4149 | if (lituse) |
4150 | { | |
4151 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
19f78583 RH |
4152 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_JSR; |
4153 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
252b5132 | 4154 | insn.nfixups++; |
19f78583 | 4155 | insn.sequence = lituse; |
252b5132 RH |
4156 | } |
4157 | ||
4158 | emit_insn (&insn); | |
4159 | } | |
4160 | ||
4161 | /* The ret and jcr instructions differ from their instruction | |
4162 | counterparts in that everything can be defaulted. */ | |
4163 | ||
4164 | static void | |
4165 | emit_retjcr (tok, ntok, vopname) | |
4166 | const expressionS *tok; | |
4167 | int ntok; | |
4168 | const PTR vopname; | |
4169 | { | |
32ff5c2e | 4170 | const char *opname = (const char *) vopname; |
252b5132 RH |
4171 | expressionS newtok[3]; |
4172 | int r, tokidx = 0; | |
4173 | ||
4174 | if (tokidx < ntok && tok[tokidx].X_op == O_register) | |
4175 | r = regno (tok[tokidx++].X_add_number); | |
4176 | else | |
4177 | r = AXP_REG_ZERO; | |
4178 | ||
4179 | set_tok_reg (newtok[0], r); | |
4180 | ||
4181 | if (tokidx < ntok && | |
4182 | (tok[tokidx].X_op == O_pregister || tok[tokidx].X_op == O_cpregister)) | |
4183 | r = regno (tok[tokidx++].X_add_number); | |
4184 | else | |
4185 | r = AXP_REG_RA; | |
4186 | ||
4187 | set_tok_cpreg (newtok[1], r); | |
4188 | ||
4189 | if (tokidx < ntok) | |
4190 | newtok[2] = tok[tokidx]; | |
4191 | else | |
32ff5c2e | 4192 | set_tok_const (newtok[2], strcmp (opname, "ret") == 0); |
252b5132 RH |
4193 | |
4194 | assemble_tokens (opname, newtok, 3, 0); | |
4195 | } | |
4196 | \f | |
11f45fb5 | 4197 | /* Assembler directives. */ |
252b5132 RH |
4198 | |
4199 | /* Handle the .text pseudo-op. This is like the usual one, but it | |
4200 | clears alpha_insn_label and restores auto alignment. */ | |
4201 | ||
4202 | static void | |
4203 | s_alpha_text (i) | |
4204 | int i; | |
4205 | ||
4206 | { | |
559e22f3 JJ |
4207 | #ifdef OBJ_ELF |
4208 | obj_elf_text (i); | |
4209 | #else | |
252b5132 | 4210 | s_text (i); |
559e22f3 | 4211 | #endif |
252b5132 RH |
4212 | alpha_insn_label = NULL; |
4213 | alpha_auto_align_on = 1; | |
4214 | alpha_current_align = 0; | |
4215 | } | |
4216 | ||
4217 | /* Handle the .data pseudo-op. This is like the usual one, but it | |
4218 | clears alpha_insn_label and restores auto alignment. */ | |
4219 | ||
4220 | static void | |
4221 | s_alpha_data (i) | |
4222 | int i; | |
4223 | { | |
559e22f3 JJ |
4224 | #ifdef OBJ_ELF |
4225 | obj_elf_data (i); | |
4226 | #else | |
252b5132 | 4227 | s_data (i); |
559e22f3 | 4228 | #endif |
252b5132 RH |
4229 | alpha_insn_label = NULL; |
4230 | alpha_auto_align_on = 1; | |
4231 | alpha_current_align = 0; | |
4232 | } | |
4233 | ||
4234 | #if defined (OBJ_ECOFF) || defined (OBJ_EVAX) | |
4235 | ||
4236 | /* Handle the OSF/1 and openVMS .comm pseudo quirks. | |
4237 | openVMS constructs a section for every common symbol. */ | |
4238 | ||
4239 | static void | |
4240 | s_alpha_comm (ignore) | |
11f45fb5 | 4241 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4242 | { |
4243 | register char *name; | |
4244 | register char c; | |
4245 | register char *p; | |
4246 | offsetT temp; | |
4247 | register symbolS *symbolP; | |
4248 | ||
4249 | #ifdef OBJ_EVAX | |
4250 | segT current_section = now_seg; | |
4251 | int current_subsec = now_subseg; | |
4252 | segT new_seg; | |
4253 | #endif | |
4254 | ||
4255 | name = input_line_pointer; | |
4256 | c = get_symbol_end (); | |
4257 | ||
4258 | /* just after name is now '\0' */ | |
4259 | p = input_line_pointer; | |
4260 | *p = c; | |
4261 | ||
4262 | SKIP_WHITESPACE (); | |
4263 | ||
4264 | /* Alpha OSF/1 compiler doesn't provide the comma, gcc does. */ | |
4265 | if (*input_line_pointer == ',') | |
4266 | { | |
4267 | input_line_pointer++; | |
4268 | SKIP_WHITESPACE (); | |
4269 | } | |
4270 | if ((temp = get_absolute_expression ()) < 0) | |
4271 | { | |
4272 | as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp); | |
4273 | ignore_rest_of_line (); | |
4274 | return; | |
4275 | } | |
4276 | ||
4277 | *p = 0; | |
4278 | symbolP = symbol_find_or_make (name); | |
4279 | ||
4280 | #ifdef OBJ_EVAX | |
4281 | /* Make a section for the common symbol. */ | |
4282 | new_seg = subseg_new (xstrdup (name), 0); | |
4283 | #endif | |
4284 | ||
4285 | *p = c; | |
4286 | ||
4287 | #ifdef OBJ_EVAX | |
4288 | /* alignment might follow */ | |
4289 | if (*input_line_pointer == ',') | |
4290 | { | |
4291 | offsetT align; | |
4292 | ||
1dab94dd | 4293 | input_line_pointer++; |
252b5132 RH |
4294 | align = get_absolute_expression (); |
4295 | bfd_set_section_alignment (stdoutput, new_seg, align); | |
4296 | } | |
4297 | #endif | |
4298 | ||
4299 | if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP)) | |
4300 | { | |
4301 | as_bad (_("Ignoring attempt to re-define symbol")); | |
4302 | ignore_rest_of_line (); | |
4303 | return; | |
4304 | } | |
4305 | ||
4306 | #ifdef OBJ_EVAX | |
4307 | if (bfd_section_size (stdoutput, new_seg) > 0) | |
1dab94dd | 4308 | { |
252b5132 RH |
4309 | if (bfd_section_size (stdoutput, new_seg) != temp) |
4310 | as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."), | |
4311 | S_GET_NAME (symbolP), | |
4312 | (long) bfd_section_size (stdoutput, new_seg), | |
4313 | (long) temp); | |
4314 | } | |
4315 | #else | |
4316 | if (S_GET_VALUE (symbolP)) | |
4317 | { | |
4318 | if (S_GET_VALUE (symbolP) != (valueT) temp) | |
4319 | as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."), | |
4320 | S_GET_NAME (symbolP), | |
4321 | (long) S_GET_VALUE (symbolP), | |
4322 | (long) temp); | |
4323 | } | |
4324 | #endif | |
4325 | else | |
4326 | { | |
1dab94dd | 4327 | #ifdef OBJ_EVAX |
252b5132 RH |
4328 | subseg_set (new_seg, 0); |
4329 | p = frag_more (temp); | |
4330 | new_seg->flags |= SEC_IS_COMMON; | |
4331 | if (! S_IS_DEFINED (symbolP)) | |
9de8d8f1 | 4332 | S_SET_SEGMENT (symbolP, new_seg); |
252b5132 RH |
4333 | #else |
4334 | S_SET_VALUE (symbolP, (valueT) temp); | |
4335 | #endif | |
4336 | S_SET_EXTERNAL (symbolP); | |
4337 | } | |
4338 | ||
4339 | #ifdef OBJ_EVAX | |
4340 | subseg_set (current_section, current_subsec); | |
4341 | #endif | |
4342 | ||
7dcc9865 | 4343 | know (symbol_get_frag (symbolP) == &zero_address_frag); |
252b5132 RH |
4344 | |
4345 | demand_empty_rest_of_line (); | |
4346 | } | |
4347 | ||
4348 | #endif /* ! OBJ_ELF */ | |
4349 | ||
4350 | #ifdef OBJ_ECOFF | |
4351 | ||
4352 | /* Handle the .rdata pseudo-op. This is like the usual one, but it | |
4353 | clears alpha_insn_label and restores auto alignment. */ | |
4354 | ||
4355 | static void | |
4356 | s_alpha_rdata (ignore) | |
11f45fb5 | 4357 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4358 | { |
4359 | int temp; | |
4360 | ||
4361 | temp = get_absolute_expression (); | |
4362 | subseg_new (".rdata", 0); | |
4363 | demand_empty_rest_of_line (); | |
4364 | alpha_insn_label = NULL; | |
4365 | alpha_auto_align_on = 1; | |
4366 | alpha_current_align = 0; | |
4367 | } | |
4368 | ||
4369 | #endif | |
4370 | ||
4371 | #ifdef OBJ_ECOFF | |
4372 | ||
4373 | /* Handle the .sdata pseudo-op. This is like the usual one, but it | |
4374 | clears alpha_insn_label and restores auto alignment. */ | |
4375 | ||
4376 | static void | |
4377 | s_alpha_sdata (ignore) | |
11f45fb5 | 4378 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4379 | { |
4380 | int temp; | |
4381 | ||
4382 | temp = get_absolute_expression (); | |
4383 | subseg_new (".sdata", 0); | |
4384 | demand_empty_rest_of_line (); | |
4385 | alpha_insn_label = NULL; | |
4386 | alpha_auto_align_on = 1; | |
4387 | alpha_current_align = 0; | |
4388 | } | |
4389 | #endif | |
4390 | ||
4391 | #ifdef OBJ_ELF | |
4392 | ||
4393 | /* Handle the .section pseudo-op. This is like the usual one, but it | |
4394 | clears alpha_insn_label and restores auto alignment. */ | |
4395 | ||
4396 | static void | |
4397 | s_alpha_section (ignore) | |
11f45fb5 | 4398 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4399 | { |
4400 | obj_elf_section (ignore); | |
4401 | ||
4402 | alpha_insn_label = NULL; | |
4403 | alpha_auto_align_on = 1; | |
4404 | alpha_current_align = 0; | |
4405 | } | |
4406 | ||
4407 | static void | |
4408 | s_alpha_ent (dummy) | |
446a06c9 | 4409 | int dummy ATTRIBUTE_UNUSED; |
252b5132 RH |
4410 | { |
4411 | if (ECOFF_DEBUGGING) | |
4412 | ecoff_directive_ent (0); | |
4413 | else | |
4414 | { | |
4415 | char *name, name_end; | |
4416 | name = input_line_pointer; | |
4417 | name_end = get_symbol_end (); | |
4418 | ||
4419 | if (! is_name_beginner (*name)) | |
4420 | { | |
4421 | as_warn (_(".ent directive has no name")); | |
4422 | *input_line_pointer = name_end; | |
4423 | } | |
4424 | else | |
4425 | { | |
4426 | symbolS *sym; | |
4427 | ||
4428 | if (alpha_cur_ent_sym) | |
4429 | as_warn (_("nested .ent directives")); | |
4430 | ||
4431 | sym = symbol_find_or_make (name); | |
49309057 | 4432 | symbol_get_bfdsym (sym)->flags |= BSF_FUNCTION; |
252b5132 RH |
4433 | alpha_cur_ent_sym = sym; |
4434 | ||
4435 | /* The .ent directive is sometimes followed by a number. Not sure | |
4436 | what it really means, but ignore it. */ | |
4437 | *input_line_pointer = name_end; | |
4438 | SKIP_WHITESPACE (); | |
4439 | if (*input_line_pointer == ',') | |
4440 | { | |
4441 | input_line_pointer++; | |
4442 | SKIP_WHITESPACE (); | |
4443 | } | |
3882b010 | 4444 | if (ISDIGIT (*input_line_pointer) || *input_line_pointer == '-') |
252b5132 RH |
4445 | (void) get_absolute_expression (); |
4446 | } | |
4447 | demand_empty_rest_of_line (); | |
4448 | } | |
4449 | } | |
4450 | ||
4451 | static void | |
4452 | s_alpha_end (dummy) | |
446a06c9 | 4453 | int dummy ATTRIBUTE_UNUSED; |
252b5132 RH |
4454 | { |
4455 | if (ECOFF_DEBUGGING) | |
4456 | ecoff_directive_end (0); | |
4457 | else | |
4458 | { | |
4459 | char *name, name_end; | |
4460 | name = input_line_pointer; | |
4461 | name_end = get_symbol_end (); | |
4462 | ||
4463 | if (! is_name_beginner (*name)) | |
4464 | { | |
4465 | as_warn (_(".end directive has no name")); | |
4466 | *input_line_pointer = name_end; | |
4467 | } | |
4468 | else | |
4469 | { | |
4470 | symbolS *sym; | |
4471 | ||
4472 | sym = symbol_find (name); | |
4473 | if (sym != alpha_cur_ent_sym) | |
4474 | as_warn (_(".end directive names different symbol than .ent")); | |
4475 | ||
4476 | /* Create an expression to calculate the size of the function. */ | |
4477 | if (sym) | |
4478 | { | |
49309057 ILT |
4479 | symbol_get_obj (sym)->size = |
4480 | (expressionS *) xmalloc (sizeof (expressionS)); | |
4481 | symbol_get_obj (sym)->size->X_op = O_subtract; | |
4482 | symbol_get_obj (sym)->size->X_add_symbol | |
66498417 | 4483 | = symbol_new ("L0\001", now_seg, frag_now_fix (), frag_now); |
49309057 ILT |
4484 | symbol_get_obj (sym)->size->X_op_symbol = sym; |
4485 | symbol_get_obj (sym)->size->X_add_number = 0; | |
252b5132 RH |
4486 | } |
4487 | ||
4488 | alpha_cur_ent_sym = NULL; | |
4489 | ||
4490 | *input_line_pointer = name_end; | |
4491 | } | |
4492 | demand_empty_rest_of_line (); | |
4493 | } | |
4494 | } | |
4495 | ||
4496 | static void | |
4497 | s_alpha_mask (fp) | |
4498 | int fp; | |
4499 | { | |
4500 | if (ECOFF_DEBUGGING) | |
4501 | { | |
4502 | if (fp) | |
1aad8cf8 | 4503 | ecoff_directive_fmask (0); |
252b5132 | 4504 | else |
1aad8cf8 | 4505 | ecoff_directive_mask (0); |
252b5132 RH |
4506 | } |
4507 | else | |
4508 | discard_rest_of_line (); | |
4509 | } | |
4510 | ||
4511 | static void | |
4512 | s_alpha_frame (dummy) | |
446a06c9 | 4513 | int dummy ATTRIBUTE_UNUSED; |
252b5132 RH |
4514 | { |
4515 | if (ECOFF_DEBUGGING) | |
4516 | ecoff_directive_frame (0); | |
4517 | else | |
4518 | discard_rest_of_line (); | |
4519 | } | |
4520 | ||
4521 | static void | |
4522 | s_alpha_prologue (ignore) | |
446a06c9 | 4523 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4524 | { |
4525 | symbolS *sym; | |
4526 | int arg; | |
4527 | ||
4528 | arg = get_absolute_expression (); | |
4529 | demand_empty_rest_of_line (); | |
4530 | ||
4531 | if (ECOFF_DEBUGGING) | |
4532 | sym = ecoff_get_cur_proc_sym (); | |
4533 | else | |
4534 | sym = alpha_cur_ent_sym; | |
4535 | know (sym != NULL); | |
4536 | ||
4537 | switch (arg) | |
4538 | { | |
1aad8cf8 KH |
4539 | case 0: /* No PV required. */ |
4540 | S_SET_OTHER (sym, STO_ALPHA_NOPV | |
4541 | | (S_GET_OTHER (sym) & ~STO_ALPHA_STD_GPLOAD)); | |
4542 | break; | |
4543 | case 1: /* Std GP load. */ | |
4544 | S_SET_OTHER (sym, STO_ALPHA_STD_GPLOAD | |
4545 | | (S_GET_OTHER (sym) & ~STO_ALPHA_STD_GPLOAD)); | |
4546 | break; | |
4547 | case 2: /* Non-std use of PV. */ | |
4548 | break; | |
4549 | ||
4550 | default: | |
4551 | as_bad (_("Invalid argument %d to .prologue."), arg); | |
4552 | break; | |
1dab94dd | 4553 | } |
252b5132 RH |
4554 | } |
4555 | ||
66498417 | 4556 | static char *first_file_directive; |
a8316fe2 | 4557 | |
4dc7ead9 RH |
4558 | static void |
4559 | s_alpha_file (ignore) | |
4560 | int ignore ATTRIBUTE_UNUSED; | |
4561 | { | |
a8316fe2 RH |
4562 | /* Save the first .file directive we see, so that we can change our |
4563 | minds about whether ecoff debugging should or shouldn't be enabled. */ | |
4564 | if (alpha_flag_mdebug < 0 && ! first_file_directive) | |
4565 | { | |
4566 | char *start = input_line_pointer; | |
4567 | size_t len; | |
4568 | ||
4569 | discard_rest_of_line (); | |
4570 | ||
4571 | len = input_line_pointer - start; | |
4572 | first_file_directive = xmalloc (len + 1); | |
4573 | memcpy (first_file_directive, start, len); | |
4574 | first_file_directive[len] = '\0'; | |
4575 | ||
4576 | input_line_pointer = start; | |
4577 | } | |
4578 | ||
4dc7ead9 RH |
4579 | if (ECOFF_DEBUGGING) |
4580 | ecoff_directive_file (0); | |
4581 | else | |
4582 | dwarf2_directive_file (0); | |
4583 | } | |
4584 | ||
4585 | static void | |
4586 | s_alpha_loc (ignore) | |
4587 | int ignore ATTRIBUTE_UNUSED; | |
4588 | { | |
4589 | if (ECOFF_DEBUGGING) | |
4590 | ecoff_directive_loc (0); | |
4591 | else | |
4592 | dwarf2_directive_loc (0); | |
4593 | } | |
4594 | ||
a8316fe2 RH |
4595 | static void |
4596 | s_alpha_stab (n) | |
4597 | int n; | |
4598 | { | |
4599 | /* If we've been undecided about mdebug, make up our minds in favour. */ | |
4600 | if (alpha_flag_mdebug < 0) | |
4601 | { | |
32ff5c2e | 4602 | segT sec = subseg_new (".mdebug", 0); |
66498417 | 4603 | bfd_set_section_flags (stdoutput, sec, SEC_HAS_CONTENTS | SEC_READONLY); |
32ff5c2e | 4604 | bfd_set_section_alignment (stdoutput, sec, 3); |
a8316fe2 RH |
4605 | |
4606 | ecoff_read_begin_hook (); | |
4607 | ||
4608 | if (first_file_directive) | |
4609 | { | |
4610 | char *save_ilp = input_line_pointer; | |
66498417 | 4611 | input_line_pointer = first_file_directive; |
a8316fe2 RH |
4612 | ecoff_directive_file (0); |
4613 | input_line_pointer = save_ilp; | |
4614 | free (first_file_directive); | |
4615 | } | |
4616 | ||
4617 | alpha_flag_mdebug = 1; | |
4618 | } | |
4619 | s_stab (n); | |
4620 | } | |
4621 | ||
252b5132 RH |
4622 | static void |
4623 | s_alpha_coff_wrapper (which) | |
4624 | int which; | |
4625 | { | |
4626 | static void (* const fns[]) PARAMS ((int)) = { | |
4627 | ecoff_directive_begin, | |
4628 | ecoff_directive_bend, | |
4629 | ecoff_directive_def, | |
4630 | ecoff_directive_dim, | |
4631 | ecoff_directive_endef, | |
252b5132 RH |
4632 | ecoff_directive_scl, |
4633 | ecoff_directive_tag, | |
4634 | ecoff_directive_val, | |
252b5132 RH |
4635 | }; |
4636 | ||
bc805888 | 4637 | assert (which >= 0 && which < (int) (sizeof (fns)/sizeof (*fns))); |
252b5132 RH |
4638 | |
4639 | if (ECOFF_DEBUGGING) | |
bc805888 | 4640 | (*fns[which]) (0); |
252b5132 RH |
4641 | else |
4642 | { | |
4643 | as_bad (_("ECOFF debugging is disabled.")); | |
4644 | ignore_rest_of_line (); | |
4645 | } | |
4646 | } | |
4647 | #endif /* OBJ_ELF */ | |
4648 | ||
4649 | #ifdef OBJ_EVAX | |
1dab94dd | 4650 | |
252b5132 | 4651 | /* Handle the section specific pseudo-op. */ |
1dab94dd | 4652 | |
252b5132 RH |
4653 | static void |
4654 | s_alpha_section (secid) | |
4655 | int secid; | |
4656 | { | |
4657 | int temp; | |
4658 | #define EVAX_SECTION_COUNT 5 | |
66498417 | 4659 | static char *section_name[EVAX_SECTION_COUNT + 1] = |
252b5132 RH |
4660 | { "NULL", ".rdata", ".comm", ".link", ".ctors", ".dtors" }; |
4661 | ||
4662 | if ((secid <= 0) || (secid > EVAX_SECTION_COUNT)) | |
4663 | { | |
4664 | as_fatal (_("Unknown section directive")); | |
4665 | demand_empty_rest_of_line (); | |
4666 | return; | |
4667 | } | |
4668 | temp = get_absolute_expression (); | |
4669 | subseg_new (section_name[secid], 0); | |
4670 | demand_empty_rest_of_line (); | |
4671 | alpha_insn_label = NULL; | |
4672 | alpha_auto_align_on = 1; | |
4673 | alpha_current_align = 0; | |
4674 | } | |
4675 | ||
252b5132 RH |
4676 | /* Parse .ent directives. */ |
4677 | ||
4678 | static void | |
4679 | s_alpha_ent (ignore) | |
11f45fb5 | 4680 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4681 | { |
4682 | symbolS *symbol; | |
4683 | expressionS symexpr; | |
4684 | ||
4685 | alpha_evax_proc.pdsckind = 0; | |
4686 | alpha_evax_proc.framereg = -1; | |
4687 | alpha_evax_proc.framesize = 0; | |
4688 | alpha_evax_proc.rsa_offset = 0; | |
4689 | alpha_evax_proc.ra_save = AXP_REG_RA; | |
4690 | alpha_evax_proc.fp_save = -1; | |
4691 | alpha_evax_proc.imask = 0; | |
4692 | alpha_evax_proc.fmask = 0; | |
4693 | alpha_evax_proc.prologue = 0; | |
4694 | alpha_evax_proc.type = 0; | |
4695 | ||
4696 | expression (&symexpr); | |
4697 | ||
4698 | if (symexpr.X_op != O_symbol) | |
4699 | { | |
4700 | as_fatal (_(".ent directive has no symbol")); | |
4701 | demand_empty_rest_of_line (); | |
4702 | return; | |
4703 | } | |
4704 | ||
4705 | symbol = make_expr_symbol (&symexpr); | |
9de8d8f1 | 4706 | symbol_get_bfdsym (symbol)->flags |= BSF_FUNCTION; |
252b5132 RH |
4707 | alpha_evax_proc.symbol = symbol; |
4708 | ||
4709 | demand_empty_rest_of_line (); | |
4710 | return; | |
4711 | } | |
4712 | ||
252b5132 RH |
4713 | /* Parse .frame <framreg>,<framesize>,RA,<rsa_offset> directives. */ |
4714 | ||
4715 | static void | |
4716 | s_alpha_frame (ignore) | |
11f45fb5 | 4717 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4718 | { |
4719 | long val; | |
4720 | ||
4721 | alpha_evax_proc.framereg = tc_get_register (1); | |
4722 | ||
4723 | SKIP_WHITESPACE (); | |
4724 | if (*input_line_pointer++ != ',' | |
4725 | || get_absolute_expression_and_terminator (&val) != ',') | |
4726 | { | |
4727 | as_warn (_("Bad .frame directive 1./2. param")); | |
4728 | --input_line_pointer; | |
4729 | demand_empty_rest_of_line (); | |
4730 | return; | |
4731 | } | |
4732 | ||
4733 | alpha_evax_proc.framesize = val; | |
4734 | ||
4735 | (void) tc_get_register (1); | |
4736 | SKIP_WHITESPACE (); | |
4737 | if (*input_line_pointer++ != ',') | |
4738 | { | |
4739 | as_warn (_("Bad .frame directive 3./4. param")); | |
4740 | --input_line_pointer; | |
4741 | demand_empty_rest_of_line (); | |
4742 | return; | |
4743 | } | |
4744 | alpha_evax_proc.rsa_offset = get_absolute_expression (); | |
4745 | ||
4746 | return; | |
4747 | } | |
4748 | ||
4749 | static void | |
4750 | s_alpha_pdesc (ignore) | |
11f45fb5 | 4751 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4752 | { |
4753 | char *name; | |
4754 | char name_end; | |
4755 | long val; | |
4756 | register char *p; | |
4757 | expressionS exp; | |
4758 | symbolS *entry_sym; | |
4759 | fixS *fixp; | |
4760 | segment_info_type *seginfo = seg_info (alpha_link_section); | |
4761 | ||
4762 | if (now_seg != alpha_link_section) | |
4763 | { | |
4764 | as_bad (_(".pdesc directive not in link (.link) section")); | |
4765 | demand_empty_rest_of_line (); | |
4766 | return; | |
4767 | } | |
4768 | ||
4769 | if ((alpha_evax_proc.symbol == 0) | |
4770 | || (!S_IS_DEFINED (alpha_evax_proc.symbol))) | |
4771 | { | |
4772 | as_fatal (_(".pdesc has no matching .ent")); | |
4773 | demand_empty_rest_of_line (); | |
4774 | return; | |
4775 | } | |
4776 | ||
7dcc9865 ILT |
4777 | *symbol_get_obj (alpha_evax_proc.symbol) = |
4778 | (valueT) seginfo->literal_pool_size; | |
252b5132 RH |
4779 | |
4780 | expression (&exp); | |
4781 | if (exp.X_op != O_symbol) | |
4782 | { | |
4783 | as_warn (_(".pdesc directive has no entry symbol")); | |
4784 | demand_empty_rest_of_line (); | |
4785 | return; | |
4786 | } | |
4787 | ||
4788 | entry_sym = make_expr_symbol (&exp); | |
4789 | /* Save bfd symbol of proc desc in function symbol. */ | |
9de8d8f1 RH |
4790 | symbol_get_bfdsym (alpha_evax_proc.symbol)->udata.p |
4791 | = symbol_get_bfdsym (entry_sym); | |
252b5132 RH |
4792 | |
4793 | SKIP_WHITESPACE (); | |
4794 | if (*input_line_pointer++ != ',') | |
4795 | { | |
4796 | as_warn (_("No comma after .pdesc <entryname>")); | |
4797 | demand_empty_rest_of_line (); | |
4798 | return; | |
4799 | } | |
4800 | ||
4801 | SKIP_WHITESPACE (); | |
4802 | name = input_line_pointer; | |
4803 | name_end = get_symbol_end (); | |
4804 | ||
32ff5c2e | 4805 | if (strncmp (name, "stack", 5) == 0) |
252b5132 RH |
4806 | { |
4807 | alpha_evax_proc.pdsckind = PDSC_S_K_KIND_FP_STACK; | |
4808 | } | |
32ff5c2e | 4809 | else if (strncmp (name, "reg", 3) == 0) |
252b5132 RH |
4810 | { |
4811 | alpha_evax_proc.pdsckind = PDSC_S_K_KIND_FP_REGISTER; | |
4812 | } | |
32ff5c2e | 4813 | else if (strncmp (name, "null", 4) == 0) |
252b5132 RH |
4814 | { |
4815 | alpha_evax_proc.pdsckind = PDSC_S_K_KIND_NULL; | |
4816 | } | |
4817 | else | |
4818 | { | |
4819 | as_fatal (_("unknown procedure kind")); | |
4820 | demand_empty_rest_of_line (); | |
4821 | return; | |
4822 | } | |
4823 | ||
4824 | *input_line_pointer = name_end; | |
4825 | demand_empty_rest_of_line (); | |
4826 | ||
4827 | #ifdef md_flush_pending_output | |
4828 | md_flush_pending_output (); | |
4829 | #endif | |
4830 | ||
4831 | frag_align (3, 0, 0); | |
4832 | p = frag_more (16); | |
4833 | fixp = fix_new (frag_now, p - frag_now->fr_literal, 8, 0, 0, 0, 0); | |
4834 | fixp->fx_done = 1; | |
4835 | seginfo->literal_pool_size += 16; | |
4836 | ||
4837 | *p = alpha_evax_proc.pdsckind | |
1aad8cf8 | 4838 | | ((alpha_evax_proc.framereg == 29) ? PDSC_S_M_BASE_REG_IS_FP : 0); |
66498417 | 4839 | *(p + 1) = PDSC_S_M_NATIVE | PDSC_S_M_NO_JACKET; |
252b5132 RH |
4840 | |
4841 | switch (alpha_evax_proc.pdsckind) | |
4842 | { | |
1aad8cf8 | 4843 | case PDSC_S_K_KIND_NULL: |
66498417 KH |
4844 | *(p + 2) = 0; |
4845 | *(p + 3) = 0; | |
1aad8cf8 KH |
4846 | break; |
4847 | case PDSC_S_K_KIND_FP_REGISTER: | |
66498417 KH |
4848 | *(p + 2) = alpha_evax_proc.fp_save; |
4849 | *(p + 3) = alpha_evax_proc.ra_save; | |
1aad8cf8 KH |
4850 | break; |
4851 | case PDSC_S_K_KIND_FP_STACK: | |
66498417 | 4852 | md_number_to_chars (p + 2, (valueT) alpha_evax_proc.rsa_offset, 2); |
1aad8cf8 KH |
4853 | break; |
4854 | default: /* impossible */ | |
4855 | break; | |
252b5132 RH |
4856 | } |
4857 | ||
66498417 KH |
4858 | *(p + 4) = 0; |
4859 | *(p + 5) = alpha_evax_proc.type & 0x0f; | |
252b5132 RH |
4860 | |
4861 | /* Signature offset. */ | |
66498417 | 4862 | md_number_to_chars (p + 6, (valueT) 0, 2); |
252b5132 | 4863 | |
66498417 | 4864 | fix_new_exp (frag_now, p - frag_now->fr_literal+8, 8, &exp, 0, BFD_RELOC_64); |
252b5132 RH |
4865 | |
4866 | if (alpha_evax_proc.pdsckind == PDSC_S_K_KIND_NULL) | |
4867 | return; | |
4868 | ||
4869 | /* Add dummy fix to make add_to_link_pool work. */ | |
4870 | p = frag_more (8); | |
4871 | fixp = fix_new (frag_now, p - frag_now->fr_literal, 8, 0, 0, 0, 0); | |
4872 | fixp->fx_done = 1; | |
4873 | seginfo->literal_pool_size += 8; | |
4874 | ||
4875 | /* pdesc+16: Size. */ | |
32ff5c2e | 4876 | md_number_to_chars (p, (valueT) alpha_evax_proc.framesize, 4); |
252b5132 | 4877 | |
66498417 | 4878 | md_number_to_chars (p + 4, (valueT) 0, 2); |
252b5132 RH |
4879 | |
4880 | /* Entry length. */ | |
66498417 | 4881 | md_number_to_chars (p + 6, alpha_evax_proc.prologue, 2); |
252b5132 RH |
4882 | |
4883 | if (alpha_evax_proc.pdsckind == PDSC_S_K_KIND_FP_REGISTER) | |
4884 | return; | |
4885 | ||
4886 | /* Add dummy fix to make add_to_link_pool work. */ | |
4887 | p = frag_more (8); | |
4888 | fixp = fix_new (frag_now, p - frag_now->fr_literal, 8, 0, 0, 0, 0); | |
4889 | fixp->fx_done = 1; | |
4890 | seginfo->literal_pool_size += 8; | |
4891 | ||
4892 | /* pdesc+24: register masks. */ | |
4893 | ||
4894 | md_number_to_chars (p, alpha_evax_proc.imask, 4); | |
66498417 | 4895 | md_number_to_chars (p + 4, alpha_evax_proc.fmask, 4); |
252b5132 RH |
4896 | |
4897 | return; | |
4898 | } | |
4899 | ||
252b5132 RH |
4900 | /* Support for crash debug on vms. */ |
4901 | ||
4902 | static void | |
4903 | s_alpha_name (ignore) | |
11f45fb5 | 4904 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4905 | { |
4906 | register char *p; | |
4907 | expressionS exp; | |
4908 | segment_info_type *seginfo = seg_info (alpha_link_section); | |
4909 | ||
4910 | if (now_seg != alpha_link_section) | |
4911 | { | |
4912 | as_bad (_(".name directive not in link (.link) section")); | |
4913 | demand_empty_rest_of_line (); | |
4914 | return; | |
4915 | } | |
4916 | ||
4917 | expression (&exp); | |
4918 | if (exp.X_op != O_symbol) | |
4919 | { | |
4920 | as_warn (_(".name directive has no symbol")); | |
4921 | demand_empty_rest_of_line (); | |
4922 | return; | |
4923 | } | |
4924 | ||
4925 | demand_empty_rest_of_line (); | |
4926 | ||
4927 | #ifdef md_flush_pending_output | |
4928 | md_flush_pending_output (); | |
4929 | #endif | |
4930 | ||
4931 | frag_align (3, 0, 0); | |
4932 | p = frag_more (8); | |
4933 | seginfo->literal_pool_size += 8; | |
4934 | ||
66498417 | 4935 | fix_new_exp (frag_now, p - frag_now->fr_literal, 8, &exp, 0, BFD_RELOC_64); |
252b5132 RH |
4936 | |
4937 | return; | |
4938 | } | |
4939 | ||
252b5132 RH |
4940 | static void |
4941 | s_alpha_linkage (ignore) | |
11f45fb5 | 4942 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4943 | { |
4944 | expressionS exp; | |
4945 | char *p; | |
4946 | ||
4947 | #ifdef md_flush_pending_output | |
4948 | md_flush_pending_output (); | |
4949 | #endif | |
4950 | ||
4951 | expression (&exp); | |
4952 | if (exp.X_op != O_symbol) | |
4953 | { | |
4954 | as_fatal (_("No symbol after .linkage")); | |
4955 | } | |
4956 | else | |
4957 | { | |
4958 | p = frag_more (LKP_S_K_SIZE); | |
4959 | memset (p, 0, LKP_S_K_SIZE); | |
4960 | fix_new_exp (frag_now, p - frag_now->fr_literal, LKP_S_K_SIZE, &exp, 0,\ | |
4961 | BFD_RELOC_ALPHA_LINKAGE); | |
4962 | } | |
4963 | demand_empty_rest_of_line (); | |
4964 | ||
4965 | return; | |
4966 | } | |
4967 | ||
252b5132 RH |
4968 | static void |
4969 | s_alpha_code_address (ignore) | |
11f45fb5 | 4970 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4971 | { |
4972 | expressionS exp; | |
4973 | char *p; | |
4974 | ||
4975 | #ifdef md_flush_pending_output | |
4976 | md_flush_pending_output (); | |
4977 | #endif | |
4978 | ||
4979 | expression (&exp); | |
4980 | if (exp.X_op != O_symbol) | |
4981 | { | |
4982 | as_fatal (_("No symbol after .code_address")); | |
4983 | } | |
4984 | else | |
4985 | { | |
4986 | p = frag_more (8); | |
4987 | memset (p, 0, 8); | |
4988 | fix_new_exp (frag_now, p - frag_now->fr_literal, 8, &exp, 0,\ | |
4989 | BFD_RELOC_ALPHA_CODEADDR); | |
4990 | } | |
4991 | demand_empty_rest_of_line (); | |
4992 | ||
4993 | return; | |
4994 | } | |
4995 | ||
252b5132 RH |
4996 | static void |
4997 | s_alpha_fp_save (ignore) | |
11f45fb5 | 4998 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4999 | { |
5000 | ||
5001 | alpha_evax_proc.fp_save = tc_get_register (1); | |
5002 | ||
5003 | demand_empty_rest_of_line (); | |
5004 | return; | |
5005 | } | |
5006 | ||
252b5132 RH |
5007 | static void |
5008 | s_alpha_mask (ignore) | |
11f45fb5 | 5009 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5010 | { |
5011 | long val; | |
5012 | ||
5013 | if (get_absolute_expression_and_terminator (&val) != ',') | |
5014 | { | |
5015 | as_warn (_("Bad .mask directive")); | |
5016 | --input_line_pointer; | |
5017 | } | |
5018 | else | |
5019 | { | |
5020 | alpha_evax_proc.imask = val; | |
32ff5c2e | 5021 | (void) get_absolute_expression (); |
252b5132 RH |
5022 | } |
5023 | demand_empty_rest_of_line (); | |
5024 | ||
5025 | return; | |
5026 | } | |
5027 | ||
252b5132 RH |
5028 | static void |
5029 | s_alpha_fmask (ignore) | |
11f45fb5 | 5030 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5031 | { |
5032 | long val; | |
5033 | ||
5034 | if (get_absolute_expression_and_terminator (&val) != ',') | |
5035 | { | |
5036 | as_warn (_("Bad .fmask directive")); | |
5037 | --input_line_pointer; | |
5038 | } | |
5039 | else | |
5040 | { | |
5041 | alpha_evax_proc.fmask = val; | |
5042 | (void) get_absolute_expression (); | |
5043 | } | |
5044 | demand_empty_rest_of_line (); | |
5045 | ||
5046 | return; | |
5047 | } | |
5048 | ||
5049 | static void | |
5050 | s_alpha_end (ignore) | |
11f45fb5 | 5051 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5052 | { |
5053 | char c; | |
5054 | ||
5055 | c = get_symbol_end (); | |
5056 | *input_line_pointer = c; | |
5057 | demand_empty_rest_of_line (); | |
5058 | alpha_evax_proc.symbol = 0; | |
5059 | ||
5060 | return; | |
5061 | } | |
5062 | ||
252b5132 RH |
5063 | static void |
5064 | s_alpha_file (ignore) | |
11f45fb5 | 5065 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5066 | { |
5067 | symbolS *s; | |
5068 | int length; | |
5069 | static char case_hack[32]; | |
5070 | ||
5071 | extern char *demand_copy_string PARAMS ((int *lenP)); | |
5072 | ||
5073 | sprintf (case_hack, "<CASE:%01d%01d>", | |
9de8d8f1 | 5074 | alpha_flag_hash_long_names, alpha_flag_show_after_trunc); |
252b5132 RH |
5075 | |
5076 | s = symbol_find_or_make (case_hack); | |
9de8d8f1 | 5077 | symbol_get_bfdsym (s)->flags |= BSF_FILE; |
252b5132 RH |
5078 | |
5079 | get_absolute_expression (); | |
5080 | s = symbol_find_or_make (demand_copy_string (&length)); | |
9de8d8f1 | 5081 | symbol_get_bfdsym (s)->flags |= BSF_FILE; |
252b5132 RH |
5082 | demand_empty_rest_of_line (); |
5083 | ||
5084 | return; | |
5085 | } | |
5086 | #endif /* OBJ_EVAX */ | |
5087 | ||
5088 | /* Handle the .gprel32 pseudo op. */ | |
5089 | ||
5090 | static void | |
5091 | s_alpha_gprel32 (ignore) | |
446a06c9 | 5092 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5093 | { |
5094 | expressionS e; | |
5095 | char *p; | |
5096 | ||
5097 | SKIP_WHITESPACE (); | |
5098 | expression (&e); | |
5099 | ||
5100 | #ifdef OBJ_ELF | |
5101 | switch (e.X_op) | |
5102 | { | |
5103 | case O_constant: | |
32ff5c2e | 5104 | e.X_add_symbol = section_symbol (absolute_section); |
252b5132 RH |
5105 | e.X_op = O_symbol; |
5106 | /* FALLTHRU */ | |
5107 | case O_symbol: | |
5108 | break; | |
5109 | default: | |
bc805888 | 5110 | abort (); |
252b5132 RH |
5111 | } |
5112 | #else | |
5113 | #ifdef OBJ_ECOFF | |
5114 | switch (e.X_op) | |
5115 | { | |
5116 | case O_constant: | |
5117 | e.X_add_symbol = section_symbol (absolute_section); | |
5118 | /* fall through */ | |
5119 | case O_symbol: | |
5120 | e.X_op = O_subtract; | |
5121 | e.X_op_symbol = alpha_gp_symbol; | |
5122 | break; | |
5123 | default: | |
5124 | abort (); | |
5125 | } | |
5126 | #endif | |
5127 | #endif | |
5128 | ||
5129 | if (alpha_auto_align_on && alpha_current_align < 2) | |
5130 | alpha_align (2, (char *) NULL, alpha_insn_label, 0); | |
5131 | if (alpha_current_align > 2) | |
5132 | alpha_current_align = 2; | |
5133 | alpha_insn_label = NULL; | |
5134 | ||
5135 | p = frag_more (4); | |
5136 | memset (p, 0, 4); | |
66498417 | 5137 | fix_new_exp (frag_now, p - frag_now->fr_literal, 4, |
252b5132 RH |
5138 | &e, 0, BFD_RELOC_GPREL32); |
5139 | } | |
5140 | ||
5141 | /* Handle floating point allocation pseudo-ops. This is like the | |
5142 | generic vresion, but it makes sure the current label, if any, is | |
5143 | correctly aligned. */ | |
5144 | ||
5145 | static void | |
5146 | s_alpha_float_cons (type) | |
5147 | int type; | |
5148 | { | |
5149 | int log_size; | |
5150 | ||
5151 | switch (type) | |
5152 | { | |
5153 | default: | |
5154 | case 'f': | |
5155 | case 'F': | |
5156 | log_size = 2; | |
5157 | break; | |
5158 | ||
5159 | case 'd': | |
5160 | case 'D': | |
5161 | case 'G': | |
5162 | log_size = 3; | |
5163 | break; | |
5164 | ||
5165 | case 'x': | |
5166 | case 'X': | |
5167 | case 'p': | |
5168 | case 'P': | |
5169 | log_size = 4; | |
5170 | break; | |
5171 | } | |
5172 | ||
5173 | if (alpha_auto_align_on && alpha_current_align < log_size) | |
5174 | alpha_align (log_size, (char *) NULL, alpha_insn_label, 0); | |
5175 | if (alpha_current_align > log_size) | |
5176 | alpha_current_align = log_size; | |
5177 | alpha_insn_label = NULL; | |
5178 | ||
5179 | float_cons (type); | |
5180 | } | |
5181 | ||
5182 | /* Handle the .proc pseudo op. We don't really do much with it except | |
5183 | parse it. */ | |
5184 | ||
5185 | static void | |
5186 | s_alpha_proc (is_static) | |
446a06c9 | 5187 | int is_static ATTRIBUTE_UNUSED; |
252b5132 RH |
5188 | { |
5189 | char *name; | |
5190 | char c; | |
5191 | char *p; | |
5192 | symbolS *symbolP; | |
5193 | int temp; | |
5194 | ||
5195 | /* Takes ".proc name,nargs" */ | |
5196 | SKIP_WHITESPACE (); | |
5197 | name = input_line_pointer; | |
5198 | c = get_symbol_end (); | |
5199 | p = input_line_pointer; | |
5200 | symbolP = symbol_find_or_make (name); | |
5201 | *p = c; | |
5202 | SKIP_WHITESPACE (); | |
5203 | if (*input_line_pointer != ',') | |
5204 | { | |
5205 | *p = 0; | |
5206 | as_warn (_("Expected comma after name \"%s\""), name); | |
5207 | *p = c; | |
5208 | temp = 0; | |
5209 | ignore_rest_of_line (); | |
5210 | } | |
5211 | else | |
5212 | { | |
5213 | input_line_pointer++; | |
5214 | temp = get_absolute_expression (); | |
5215 | } | |
7dcc9865 | 5216 | /* *symbol_get_obj (symbolP) = (signed char) temp; */ |
252b5132 RH |
5217 | as_warn (_("unhandled: .proc %s,%d"), name, temp); |
5218 | demand_empty_rest_of_line (); | |
5219 | } | |
5220 | ||
5221 | /* Handle the .set pseudo op. This is used to turn on and off most of | |
5222 | the assembler features. */ | |
5223 | ||
5224 | static void | |
5225 | s_alpha_set (x) | |
446a06c9 | 5226 | int x ATTRIBUTE_UNUSED; |
252b5132 RH |
5227 | { |
5228 | char *name, ch, *s; | |
5229 | int yesno = 1; | |
5230 | ||
5231 | SKIP_WHITESPACE (); | |
5232 | name = input_line_pointer; | |
5233 | ch = get_symbol_end (); | |
5234 | ||
5235 | s = name; | |
5236 | if (s[0] == 'n' && s[1] == 'o') | |
5237 | { | |
5238 | yesno = 0; | |
5239 | s += 2; | |
5240 | } | |
5241 | if (!strcmp ("reorder", s)) | |
5242 | /* ignore */ ; | |
5243 | else if (!strcmp ("at", s)) | |
5244 | alpha_noat_on = !yesno; | |
5245 | else if (!strcmp ("macro", s)) | |
5246 | alpha_macros_on = yesno; | |
5247 | else if (!strcmp ("move", s)) | |
5248 | /* ignore */ ; | |
5249 | else if (!strcmp ("volatile", s)) | |
5250 | /* ignore */ ; | |
5251 | else | |
5252 | as_warn (_("Tried to .set unrecognized mode `%s'"), name); | |
5253 | ||
5254 | *input_line_pointer = ch; | |
5255 | demand_empty_rest_of_line (); | |
5256 | } | |
5257 | ||
5258 | /* Handle the .base pseudo op. This changes the assembler's notion of | |
5259 | the $gp register. */ | |
5260 | ||
5261 | static void | |
5262 | s_alpha_base (ignore) | |
446a06c9 | 5263 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5264 | { |
5265 | #if 0 | |
5266 | if (first_32bit_quadrant) | |
5267 | { | |
5268 | /* not fatal, but it might not work in the end */ | |
5269 | as_warn (_("File overrides no-base-register option.")); | |
5270 | first_32bit_quadrant = 0; | |
5271 | } | |
5272 | #endif | |
5273 | ||
5274 | SKIP_WHITESPACE (); | |
5275 | if (*input_line_pointer == '$') | |
5276 | { /* $rNN form */ | |
5277 | input_line_pointer++; | |
5278 | if (*input_line_pointer == 'r') | |
5279 | input_line_pointer++; | |
5280 | } | |
5281 | ||
5282 | alpha_gp_register = get_absolute_expression (); | |
5283 | if (alpha_gp_register < 0 || alpha_gp_register > 31) | |
5284 | { | |
5285 | alpha_gp_register = AXP_REG_GP; | |
5286 | as_warn (_("Bad base register, using $%d."), alpha_gp_register); | |
5287 | } | |
5288 | ||
5289 | demand_empty_rest_of_line (); | |
5290 | } | |
5291 | ||
5292 | /* Handle the .align pseudo-op. This aligns to a power of two. It | |
5293 | also adjusts any current instruction label. We treat this the same | |
5294 | way the MIPS port does: .align 0 turns off auto alignment. */ | |
5295 | ||
5296 | static void | |
5297 | s_alpha_align (ignore) | |
446a06c9 | 5298 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5299 | { |
5300 | int align; | |
5301 | char fill, *pfill; | |
5302 | long max_alignment = 15; | |
5303 | ||
5304 | align = get_absolute_expression (); | |
5305 | if (align > max_alignment) | |
5306 | { | |
5307 | align = max_alignment; | |
5308 | as_bad (_("Alignment too large: %d. assumed"), align); | |
5309 | } | |
5310 | else if (align < 0) | |
5311 | { | |
5312 | as_warn (_("Alignment negative: 0 assumed")); | |
5313 | align = 0; | |
5314 | } | |
5315 | ||
5316 | if (*input_line_pointer == ',') | |
5317 | { | |
5318 | input_line_pointer++; | |
5319 | fill = get_absolute_expression (); | |
5320 | pfill = &fill; | |
5321 | } | |
5322 | else | |
5323 | pfill = NULL; | |
5324 | ||
5325 | if (align != 0) | |
5326 | { | |
5327 | alpha_auto_align_on = 1; | |
5328 | alpha_align (align, pfill, alpha_insn_label, 1); | |
5329 | } | |
5330 | else | |
5331 | { | |
5332 | alpha_auto_align_on = 0; | |
5333 | } | |
5334 | ||
5335 | demand_empty_rest_of_line (); | |
5336 | } | |
5337 | ||
5338 | /* Hook the normal string processor to reset known alignment. */ | |
5339 | ||
5340 | static void | |
5341 | s_alpha_stringer (terminate) | |
5342 | int terminate; | |
5343 | { | |
5344 | alpha_current_align = 0; | |
5345 | alpha_insn_label = NULL; | |
5346 | stringer (terminate); | |
5347 | } | |
5348 | ||
5349 | /* Hook the normal space processing to reset known alignment. */ | |
5350 | ||
5351 | static void | |
5352 | s_alpha_space (ignore) | |
5353 | int ignore; | |
5354 | { | |
5355 | alpha_current_align = 0; | |
5356 | alpha_insn_label = NULL; | |
5357 | s_space (ignore); | |
5358 | } | |
5359 | ||
5360 | /* Hook into cons for auto-alignment. */ | |
5361 | ||
5362 | void | |
5363 | alpha_cons_align (size) | |
5364 | int size; | |
5365 | { | |
5366 | int log_size; | |
5367 | ||
5368 | log_size = 0; | |
5369 | while ((size >>= 1) != 0) | |
5370 | ++log_size; | |
5371 | ||
5372 | if (alpha_auto_align_on && alpha_current_align < log_size) | |
5373 | alpha_align (log_size, (char *) NULL, alpha_insn_label, 0); | |
5374 | if (alpha_current_align > log_size) | |
5375 | alpha_current_align = log_size; | |
5376 | alpha_insn_label = NULL; | |
5377 | } | |
5378 | ||
5379 | /* Here come the .uword, .ulong, and .uquad explicitly unaligned | |
5380 | pseudos. We just turn off auto-alignment and call down to cons. */ | |
5381 | ||
5382 | static void | |
5383 | s_alpha_ucons (bytes) | |
5384 | int bytes; | |
5385 | { | |
5386 | int hold = alpha_auto_align_on; | |
5387 | alpha_auto_align_on = 0; | |
5388 | cons (bytes); | |
5389 | alpha_auto_align_on = hold; | |
5390 | } | |
5391 | ||
5392 | /* Switch the working cpu type. */ | |
5393 | ||
5394 | static void | |
5395 | s_alpha_arch (ignored) | |
446a06c9 | 5396 | int ignored ATTRIBUTE_UNUSED; |
252b5132 RH |
5397 | { |
5398 | char *name, ch; | |
5399 | const struct cpu_type *p; | |
5400 | ||
5401 | SKIP_WHITESPACE (); | |
5402 | name = input_line_pointer; | |
5403 | ch = get_symbol_end (); | |
5404 | ||
5405 | for (p = cpu_types; p->name; ++p) | |
32ff5c2e | 5406 | if (strcmp (name, p->name) == 0) |
252b5132 | 5407 | { |
1aad8cf8 | 5408 | alpha_target_name = p->name, alpha_target = p->flags; |
252b5132 RH |
5409 | goto found; |
5410 | } | |
32ff5c2e | 5411 | as_warn ("Unknown CPU identifier `%s'", name); |
252b5132 RH |
5412 | |
5413 | found: | |
5414 | *input_line_pointer = ch; | |
5415 | demand_empty_rest_of_line (); | |
5416 | } | |
252b5132 | 5417 | \f |
252b5132 RH |
5418 | #ifdef DEBUG1 |
5419 | /* print token expression with alpha specific extension. */ | |
5420 | ||
5421 | static void | |
32ff5c2e | 5422 | alpha_print_token (f, exp) |
1aad8cf8 KH |
5423 | FILE *f; |
5424 | const expressionS *exp; | |
252b5132 RH |
5425 | { |
5426 | switch (exp->X_op) | |
5427 | { | |
1aad8cf8 KH |
5428 | case O_cpregister: |
5429 | putc (',', f); | |
5430 | /* FALLTHRU */ | |
5431 | case O_pregister: | |
5432 | putc ('(', f); | |
5433 | { | |
5434 | expressionS nexp = *exp; | |
5435 | nexp.X_op = O_register; | |
5436 | print_expr (f, &nexp); | |
5437 | } | |
5438 | putc (')', f); | |
5439 | break; | |
5440 | default: | |
5441 | print_expr (f, exp); | |
5442 | break; | |
252b5132 RH |
5443 | } |
5444 | return; | |
5445 | } | |
5446 | #endif | |
5447 | \f | |
5448 | /* The target specific pseudo-ops which we support. */ | |
5449 | ||
66498417 | 5450 | const pseudo_typeS md_pseudo_table[] = { |
252b5132 RH |
5451 | #ifdef OBJ_ECOFF |
5452 | {"comm", s_alpha_comm, 0}, /* osf1 compiler does this */ | |
5453 | {"rdata", s_alpha_rdata, 0}, | |
5454 | #endif | |
5455 | {"text", s_alpha_text, 0}, | |
5456 | {"data", s_alpha_data, 0}, | |
5457 | #ifdef OBJ_ECOFF | |
5458 | {"sdata", s_alpha_sdata, 0}, | |
5459 | #endif | |
5460 | #ifdef OBJ_ELF | |
5461 | {"section", s_alpha_section, 0}, | |
5462 | {"section.s", s_alpha_section, 0}, | |
5463 | {"sect", s_alpha_section, 0}, | |
5464 | {"sect.s", s_alpha_section, 0}, | |
5465 | #endif | |
5466 | #ifdef OBJ_EVAX | |
5467 | { "pdesc", s_alpha_pdesc, 0}, | |
5468 | { "name", s_alpha_name, 0}, | |
5469 | { "linkage", s_alpha_linkage, 0}, | |
5470 | { "code_address", s_alpha_code_address, 0}, | |
5471 | { "ent", s_alpha_ent, 0}, | |
5472 | { "frame", s_alpha_frame, 0}, | |
5473 | { "fp_save", s_alpha_fp_save, 0}, | |
5474 | { "mask", s_alpha_mask, 0}, | |
5475 | { "fmask", s_alpha_fmask, 0}, | |
5476 | { "end", s_alpha_end, 0}, | |
5477 | { "file", s_alpha_file, 0}, | |
5478 | { "rdata", s_alpha_section, 1}, | |
5479 | { "comm", s_alpha_comm, 0}, | |
5480 | { "link", s_alpha_section, 3}, | |
5481 | { "ctors", s_alpha_section, 4}, | |
5482 | { "dtors", s_alpha_section, 5}, | |
5483 | #endif | |
5484 | #ifdef OBJ_ELF | |
5485 | /* Frame related pseudos. */ | |
5486 | {"ent", s_alpha_ent, 0}, | |
5487 | {"end", s_alpha_end, 0}, | |
5488 | {"mask", s_alpha_mask, 0}, | |
5489 | {"fmask", s_alpha_mask, 1}, | |
5490 | {"frame", s_alpha_frame, 0}, | |
5491 | {"prologue", s_alpha_prologue, 0}, | |
4dc7ead9 RH |
5492 | {"file", s_alpha_file, 5}, |
5493 | {"loc", s_alpha_loc, 9}, | |
a8316fe2 RH |
5494 | {"stabs", s_alpha_stab, 's'}, |
5495 | {"stabn", s_alpha_stab, 'n'}, | |
252b5132 RH |
5496 | /* COFF debugging related pseudos. */ |
5497 | {"begin", s_alpha_coff_wrapper, 0}, | |
5498 | {"bend", s_alpha_coff_wrapper, 1}, | |
5499 | {"def", s_alpha_coff_wrapper, 2}, | |
5500 | {"dim", s_alpha_coff_wrapper, 3}, | |
5501 | {"endef", s_alpha_coff_wrapper, 4}, | |
4dc7ead9 RH |
5502 | {"scl", s_alpha_coff_wrapper, 5}, |
5503 | {"tag", s_alpha_coff_wrapper, 6}, | |
5504 | {"val", s_alpha_coff_wrapper, 7}, | |
252b5132 RH |
5505 | #else |
5506 | {"prologue", s_ignore, 0}, | |
5507 | #endif | |
5508 | {"gprel32", s_alpha_gprel32, 0}, | |
5509 | {"t_floating", s_alpha_float_cons, 'd'}, | |
5510 | {"s_floating", s_alpha_float_cons, 'f'}, | |
5511 | {"f_floating", s_alpha_float_cons, 'F'}, | |
5512 | {"g_floating", s_alpha_float_cons, 'G'}, | |
5513 | {"d_floating", s_alpha_float_cons, 'D'}, | |
5514 | ||
5515 | {"proc", s_alpha_proc, 0}, | |
5516 | {"aproc", s_alpha_proc, 1}, | |
5517 | {"set", s_alpha_set, 0}, | |
5518 | {"reguse", s_ignore, 0}, | |
5519 | {"livereg", s_ignore, 0}, | |
5520 | {"base", s_alpha_base, 0}, /*??*/ | |
5521 | {"option", s_ignore, 0}, | |
5522 | {"aent", s_ignore, 0}, | |
5523 | {"ugen", s_ignore, 0}, | |
5524 | {"eflag", s_ignore, 0}, | |
5525 | ||
5526 | {"align", s_alpha_align, 0}, | |
5527 | {"double", s_alpha_float_cons, 'd'}, | |
5528 | {"float", s_alpha_float_cons, 'f'}, | |
5529 | {"single", s_alpha_float_cons, 'f'}, | |
5530 | {"ascii", s_alpha_stringer, 0}, | |
5531 | {"asciz", s_alpha_stringer, 1}, | |
5532 | {"string", s_alpha_stringer, 1}, | |
5533 | {"space", s_alpha_space, 0}, | |
5534 | {"skip", s_alpha_space, 0}, | |
5535 | {"zero", s_alpha_space, 0}, | |
5536 | ||
5537 | /* Unaligned data pseudos. */ | |
5538 | {"uword", s_alpha_ucons, 2}, | |
5539 | {"ulong", s_alpha_ucons, 4}, | |
5540 | {"uquad", s_alpha_ucons, 8}, | |
5541 | ||
5542 | #ifdef OBJ_ELF | |
5543 | /* Dwarf wants these versions of unaligned. */ | |
5544 | {"2byte", s_alpha_ucons, 2}, | |
5545 | {"4byte", s_alpha_ucons, 4}, | |
5546 | {"8byte", s_alpha_ucons, 8}, | |
5547 | #endif | |
5548 | ||
5549 | /* We don't do any optimizing, so we can safely ignore these. */ | |
5550 | {"noalias", s_ignore, 0}, | |
5551 | {"alias", s_ignore, 0}, | |
5552 | ||
5553 | {"arch", s_alpha_arch, 0}, | |
5554 | ||
5555 | {NULL, 0, 0}, | |
5556 | }; | |
252b5132 RH |
5557 | \f |
5558 | /* Build a BFD section with its flags set appropriately for the .lita, | |
5559 | .lit8, or .lit4 sections. */ | |
5560 | ||
5561 | static void | |
5562 | create_literal_section (name, secp, symp) | |
5563 | const char *name; | |
5564 | segT *secp; | |
5565 | symbolS **symp; | |
5566 | { | |
5567 | segT current_section = now_seg; | |
5568 | int current_subsec = now_subseg; | |
5569 | segT new_sec; | |
5570 | ||
5571 | *secp = new_sec = subseg_new (name, 0); | |
5572 | subseg_set (current_section, current_subsec); | |
5573 | bfd_set_section_alignment (stdoutput, new_sec, 4); | |
5574 | bfd_set_section_flags (stdoutput, new_sec, | |
5575 | SEC_RELOC | SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
5576 | | SEC_DATA); | |
5577 | ||
5578 | S_CLEAR_EXTERNAL (*symp = section_symbol (new_sec)); | |
5579 | } | |
5580 | ||
5581 | #ifdef OBJ_ECOFF | |
5582 | ||
5583 | /* @@@ GP selection voodoo. All of this seems overly complicated and | |
5584 | unnecessary; which is the primary reason it's for ECOFF only. */ | |
11f45fb5 | 5585 | static inline void maybe_set_gp PARAMS ((asection *)); |
252b5132 RH |
5586 | |
5587 | static inline void | |
5588 | maybe_set_gp (sec) | |
5589 | asection *sec; | |
5590 | { | |
5591 | bfd_vma vma; | |
5592 | if (!sec) | |
5593 | return; | |
5594 | vma = bfd_get_section_vma (foo, sec); | |
5595 | if (vma && vma < alpha_gp_value) | |
5596 | alpha_gp_value = vma; | |
5597 | } | |
5598 | ||
5599 | static void | |
5600 | select_gp_value () | |
5601 | { | |
5602 | assert (alpha_gp_value == 0); | |
5603 | ||
5604 | /* Get minus-one in whatever width... */ | |
66498417 KH |
5605 | alpha_gp_value = 0; |
5606 | alpha_gp_value--; | |
252b5132 RH |
5607 | |
5608 | /* Select the smallest VMA of these existing sections. */ | |
5609 | maybe_set_gp (alpha_lita_section); | |
5610 | #if 0 | |
5611 | /* These were disabled before -- should we use them? */ | |
5612 | maybe_set_gp (sdata); | |
5613 | maybe_set_gp (lit8_sec); | |
5614 | maybe_set_gp (lit4_sec); | |
5615 | #endif | |
5616 | ||
5617 | /* @@ Will a simple 0x8000 work here? If not, why not? */ | |
5618 | #define GP_ADJUSTMENT (0x8000 - 0x10) | |
5619 | ||
5620 | alpha_gp_value += GP_ADJUSTMENT; | |
5621 | ||
5622 | S_SET_VALUE (alpha_gp_symbol, alpha_gp_value); | |
5623 | ||
5624 | #ifdef DEBUG1 | |
5625 | printf (_("Chose GP value of %lx\n"), alpha_gp_value); | |
5626 | #endif | |
5627 | } | |
5628 | #endif /* OBJ_ECOFF */ | |
5629 | ||
d61a78a7 RH |
5630 | #ifdef OBJ_ELF |
5631 | /* Map 's' to SHF_ALPHA_GPREL. */ | |
5632 | ||
5633 | int | |
5634 | alpha_elf_section_letter (letter, ptr_msg) | |
5635 | int letter; | |
5636 | char **ptr_msg; | |
5637 | { | |
5638 | if (letter == 's') | |
5639 | return SHF_ALPHA_GPREL; | |
5640 | ||
13ae64f3 | 5641 | *ptr_msg = _("Bad .section directive: want a,s,w,x,M,S,G,T in string"); |
d61a78a7 RH |
5642 | return 0; |
5643 | } | |
5644 | ||
5645 | /* Map SHF_ALPHA_GPREL to SEC_SMALL_DATA. */ | |
5646 | ||
5647 | flagword | |
5648 | alpha_elf_section_flags (flags, attr, type) | |
5649 | flagword flags; | |
5650 | int attr, type ATTRIBUTE_UNUSED; | |
5651 | { | |
5652 | if (attr & SHF_ALPHA_GPREL) | |
5653 | flags |= SEC_SMALL_DATA; | |
5654 | return flags; | |
5655 | } | |
5656 | #endif /* OBJ_ELF */ | |
5657 | ||
252b5132 RH |
5658 | /* Called internally to handle all alignment needs. This takes care |
5659 | of eliding calls to frag_align if'n the cached current alignment | |
5660 | says we've already got it, as well as taking care of the auto-align | |
5661 | feature wrt labels. */ | |
5662 | ||
5663 | static void | |
5664 | alpha_align (n, pfill, label, force) | |
5665 | int n; | |
5666 | char *pfill; | |
5667 | symbolS *label; | |
446a06c9 | 5668 | int force ATTRIBUTE_UNUSED; |
252b5132 RH |
5669 | { |
5670 | if (alpha_current_align >= n) | |
5671 | return; | |
5672 | ||
5673 | if (pfill == NULL) | |
5674 | { | |
0a9ef439 RH |
5675 | if (subseg_text_p (now_seg)) |
5676 | frag_align_code (n, 0); | |
252b5132 RH |
5677 | else |
5678 | frag_align (n, 0, 0); | |
5679 | } | |
5680 | else | |
5681 | frag_align (n, *pfill, 0); | |
5682 | ||
5683 | alpha_current_align = n; | |
5684 | ||
98007ce7 | 5685 | if (label != NULL && S_GET_SEGMENT (label) == now_seg) |
252b5132 | 5686 | { |
49309057 | 5687 | symbol_set_frag (label, frag_now); |
252b5132 RH |
5688 | S_SET_VALUE (label, (valueT) frag_now_fix ()); |
5689 | } | |
5690 | ||
98007ce7 | 5691 | record_alignment (now_seg, n); |
252b5132 | 5692 | |
0a9ef439 | 5693 | /* ??? If alpha_flag_relax && force && elf, record the requested alignment |
252b5132 RH |
5694 | in a reloc for the linker to see. */ |
5695 | } | |
5696 | ||
0a9ef439 RH |
5697 | /* This is called from HANDLE_ALIGN in write.c. Fill in the contents |
5698 | of an rs_align_code fragment. */ | |
5699 | ||
bfb32b52 | 5700 | void |
0a9ef439 RH |
5701 | alpha_handle_align (fragp) |
5702 | fragS *fragp; | |
5703 | { | |
84b229ef | 5704 | static char const unop[4] = { 0x00, 0x00, 0xfe, 0x2f }; |
0a9ef439 | 5705 | static char const nopunop[8] = { |
1aad8cf8 | 5706 | 0x1f, 0x04, 0xff, 0x47, |
84b229ef | 5707 | 0x00, 0x00, 0xfe, 0x2f |
0a9ef439 RH |
5708 | }; |
5709 | ||
5710 | int bytes, fix; | |
5711 | char *p; | |
5712 | ||
5713 | if (fragp->fr_type != rs_align_code) | |
5714 | return; | |
5715 | ||
5716 | bytes = fragp->fr_next->fr_address - fragp->fr_address - fragp->fr_fix; | |
5717 | p = fragp->fr_literal + fragp->fr_fix; | |
5718 | fix = 0; | |
5719 | ||
5720 | if (bytes & 3) | |
5721 | { | |
5722 | fix = bytes & 3; | |
5723 | memset (p, 0, fix); | |
5724 | p += fix; | |
5725 | bytes -= fix; | |
5726 | } | |
5727 | ||
5728 | if (bytes & 4) | |
5729 | { | |
5730 | memcpy (p, unop, 4); | |
5731 | p += 4; | |
5732 | bytes -= 4; | |
5733 | fix += 4; | |
5734 | } | |
5735 | ||
5736 | memcpy (p, nopunop, 8); | |
5737 | ||
5738 | fragp->fr_fix += fix; | |
5739 | fragp->fr_var = 8; | |
5740 | } | |
5741 | ||
252b5132 RH |
5742 | /* The Alpha has support for some VAX floating point types, as well as for |
5743 | IEEE floating point. We consider IEEE to be the primary floating point | |
5744 | format, and sneak in the VAX floating point support here. */ | |
5745 | #define md_atof vax_md_atof | |
5746 | #include "config/atof-vax.c" |