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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 RH |
66 | \f |
67 | /* Local types */ | |
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 | ||
66498417 | 75 | struct alpha_fixup { |
252b5132 RH |
76 | expressionS exp; |
77 | bfd_reloc_code_real_type reloc; | |
78 | }; | |
79 | ||
66498417 | 80 | struct alpha_insn { |
252b5132 RH |
81 | unsigned insn; |
82 | int nfixups; | |
83 | struct alpha_fixup fixups[MAX_INSN_FIXUPS]; | |
19f78583 | 84 | long sequence; |
252b5132 RH |
85 | }; |
86 | ||
66498417 | 87 | enum alpha_macro_arg { |
43b4c25e MM |
88 | MACRO_EOA = 1, |
89 | MACRO_IR, | |
90 | MACRO_PIR, | |
91 | MACRO_OPIR, | |
92 | MACRO_CPIR, | |
93 | MACRO_FPR, | |
94 | MACRO_EXP, | |
252b5132 RH |
95 | }; |
96 | ||
66498417 | 97 | struct alpha_macro { |
252b5132 RH |
98 | const char *name; |
99 | void (*emit) PARAMS ((const expressionS *, int, const PTR)); | |
100 | const PTR arg; | |
101 | enum alpha_macro_arg argsets[16]; | |
102 | }; | |
103 | ||
1dab94dd | 104 | /* Extra expression types. */ |
252b5132 | 105 | |
446a06c9 MM |
106 | #define O_pregister O_md1 /* O_register, in parentheses */ |
107 | #define O_cpregister O_md2 /* + a leading comma */ | |
252b5132 | 108 | |
3765b1be | 109 | /* The alpha_reloc_op table below depends on the ordering of these. */ |
43b4c25e | 110 | #define O_literal O_md3 /* !literal relocation */ |
19f78583 RH |
111 | #define O_lituse_addr O_md4 /* !lituse_addr relocation */ |
112 | #define O_lituse_base O_md5 /* !lituse_base relocation */ | |
113 | #define O_lituse_bytoff O_md6 /* !lituse_bytoff relocation */ | |
114 | #define O_lituse_jsr O_md7 /* !lituse_jsr relocation */ | |
3765b1be RH |
115 | #define O_lituse_tlsgd O_md8 /* !lituse_tlsgd relocation */ |
116 | #define O_lituse_tlsldm O_md9 /* !lituse_tlsldm relocation */ | |
117 | #define O_gpdisp O_md10 /* !gpdisp relocation */ | |
118 | #define O_gprelhigh O_md11 /* !gprelhigh relocation */ | |
119 | #define O_gprellow O_md12 /* !gprellow relocation */ | |
120 | #define O_gprel O_md13 /* !gprel relocation */ | |
121 | #define O_samegp O_md14 /* !samegp relocation */ | |
122 | #define O_tlsgd O_md15 /* !tlsgd relocation */ | |
123 | #define O_tlsldm O_md16 /* !tlsldm relocation */ | |
124 | #define O_gotdtprel O_md17 /* !gotdtprel relocation */ | |
125 | #define O_dtprelhi O_md18 /* !dtprelhi relocation */ | |
126 | #define O_dtprello O_md19 /* !dtprello relocation */ | |
127 | #define O_dtprel O_md20 /* !dtprel relocation */ | |
128 | #define O_gottprel O_md21 /* !gottprel relocation */ | |
129 | #define O_tprelhi O_md22 /* !tprelhi relocation */ | |
130 | #define O_tprello O_md23 /* !tprello relocation */ | |
131 | #define O_tprel O_md24 /* !tprel relocation */ | |
19f78583 RH |
132 | |
133 | #define DUMMY_RELOC_LITUSE_ADDR (BFD_RELOC_UNUSED + 1) | |
134 | #define DUMMY_RELOC_LITUSE_BASE (BFD_RELOC_UNUSED + 2) | |
135 | #define DUMMY_RELOC_LITUSE_BYTOFF (BFD_RELOC_UNUSED + 3) | |
136 | #define DUMMY_RELOC_LITUSE_JSR (BFD_RELOC_UNUSED + 4) | |
3765b1be RH |
137 | #define DUMMY_RELOC_LITUSE_TLSGD (BFD_RELOC_UNUSED + 5) |
138 | #define DUMMY_RELOC_LITUSE_TLSLDM (BFD_RELOC_UNUSED + 6) | |
19f78583 | 139 | |
3765b1be | 140 | #define USER_RELOC_P(R) ((R) >= O_literal && (R) <= O_tprel) |
43b4c25e | 141 | |
252b5132 RH |
142 | /* Macros for extracting the type and number of encoded register tokens */ |
143 | ||
144 | #define is_ir_num(x) (((x) & 32) == 0) | |
145 | #define is_fpr_num(x) (((x) & 32) != 0) | |
146 | #define regno(x) ((x) & 31) | |
147 | ||
148 | /* Something odd inherited from the old assembler */ | |
149 | ||
150 | #define note_gpreg(R) (alpha_gprmask |= (1 << (R))) | |
151 | #define note_fpreg(R) (alpha_fprmask |= (1 << (R))) | |
152 | ||
153 | /* Predicates for 16- and 32-bit ranges */ | |
154 | /* XXX: The non-shift version appears to trigger a compiler bug when | |
155 | cross-assembling from x86 w/ gcc 2.7.2. */ | |
156 | ||
157 | #if 1 | |
158 | #define range_signed_16(x) \ | |
bc805888 | 159 | (((offsetT) (x) >> 15) == 0 || ((offsetT) (x) >> 15) == -1) |
252b5132 | 160 | #define range_signed_32(x) \ |
bc805888 | 161 | (((offsetT) (x) >> 31) == 0 || ((offsetT) (x) >> 31) == -1) |
252b5132 | 162 | #else |
32ff5c2e KH |
163 | #define range_signed_16(x) ((offsetT) (x) >= -(offsetT) 0x8000 && \ |
164 | (offsetT) (x) <= (offsetT) 0x7FFF) | |
165 | #define range_signed_32(x) ((offsetT) (x) >= -(offsetT) 0x80000000 && \ | |
166 | (offsetT) (x) <= (offsetT) 0x7FFFFFFF) | |
252b5132 RH |
167 | #endif |
168 | ||
169 | /* Macros for sign extending from 16- and 32-bits. */ | |
170 | /* XXX: The cast macros will work on all the systems that I care about, | |
171 | but really a predicate should be found to use the non-cast forms. */ | |
172 | ||
173 | #if 1 | |
bc805888 KH |
174 | #define sign_extend_16(x) ((short) (x)) |
175 | #define sign_extend_32(x) ((int) (x)) | |
252b5132 | 176 | #else |
bc805888 KH |
177 | #define sign_extend_16(x) ((offsetT) (((x) & 0xFFFF) ^ 0x8000) - 0x8000) |
178 | #define sign_extend_32(x) ((offsetT) (((x) & 0xFFFFFFFF) \ | |
252b5132 RH |
179 | ^ 0x80000000) - 0x80000000) |
180 | #endif | |
181 | ||
182 | /* Macros to build tokens */ | |
183 | ||
32ff5c2e | 184 | #define set_tok_reg(t, r) (memset (&(t), 0, sizeof (t)), \ |
252b5132 RH |
185 | (t).X_op = O_register, \ |
186 | (t).X_add_number = (r)) | |
32ff5c2e | 187 | #define set_tok_preg(t, r) (memset (&(t), 0, sizeof (t)), \ |
252b5132 RH |
188 | (t).X_op = O_pregister, \ |
189 | (t).X_add_number = (r)) | |
32ff5c2e | 190 | #define set_tok_cpreg(t, r) (memset (&(t), 0, sizeof (t)), \ |
252b5132 RH |
191 | (t).X_op = O_cpregister, \ |
192 | (t).X_add_number = (r)) | |
32ff5c2e | 193 | #define set_tok_freg(t, r) (memset (&(t), 0, sizeof (t)), \ |
252b5132 | 194 | (t).X_op = O_register, \ |
66498417 | 195 | (t).X_add_number = (r) + 32) |
32ff5c2e | 196 | #define set_tok_sym(t, s, a) (memset (&(t), 0, sizeof (t)), \ |
252b5132 RH |
197 | (t).X_op = O_symbol, \ |
198 | (t).X_add_symbol = (s), \ | |
199 | (t).X_add_number = (a)) | |
32ff5c2e | 200 | #define set_tok_const(t, n) (memset (&(t), 0, sizeof (t)), \ |
252b5132 RH |
201 | (t).X_op = O_constant, \ |
202 | (t).X_add_number = (n)) | |
252b5132 RH |
203 | \f |
204 | /* Prototypes for all local functions */ | |
205 | ||
19f78583 RH |
206 | static struct alpha_reloc_tag *get_alpha_reloc_tag PARAMS ((long)); |
207 | static void alpha_adjust_symtab_relocs PARAMS ((bfd *, asection *, PTR)); | |
208 | ||
252b5132 RH |
209 | static int tokenize_arguments PARAMS ((char *, expressionS *, int)); |
210 | static const struct alpha_opcode *find_opcode_match | |
211 | PARAMS ((const struct alpha_opcode *, const expressionS *, int *, int *)); | |
212 | static const struct alpha_macro *find_macro_match | |
213 | PARAMS ((const struct alpha_macro *, const expressionS *, int *)); | |
214 | static unsigned insert_operand | |
215 | PARAMS ((unsigned, const struct alpha_operand *, offsetT, char *, unsigned)); | |
216 | static void assemble_insn | |
217 | PARAMS ((const struct alpha_opcode *, const expressionS *, int, | |
19f78583 | 218 | struct alpha_insn *, bfd_reloc_code_real_type)); |
252b5132 RH |
219 | static void emit_insn PARAMS ((struct alpha_insn *)); |
220 | static void assemble_tokens_to_insn | |
221 | PARAMS ((const char *, const expressionS *, int, struct alpha_insn *)); | |
222 | static void assemble_tokens | |
223 | PARAMS ((const char *, const expressionS *, int, int)); | |
224 | ||
19f78583 RH |
225 | static long load_expression |
226 | PARAMS ((int, const expressionS *, int *, expressionS *)); | |
252b5132 RH |
227 | |
228 | static void emit_ldgp PARAMS ((const expressionS *, int, const PTR)); | |
229 | static void emit_division PARAMS ((const expressionS *, int, const PTR)); | |
230 | static void emit_lda PARAMS ((const expressionS *, int, const PTR)); | |
231 | static void emit_ldah PARAMS ((const expressionS *, int, const PTR)); | |
232 | static void emit_ir_load PARAMS ((const expressionS *, int, const PTR)); | |
233 | static void emit_loadstore PARAMS ((const expressionS *, int, const PTR)); | |
234 | static void emit_jsrjmp PARAMS ((const expressionS *, int, const PTR)); | |
235 | static void emit_ldX PARAMS ((const expressionS *, int, const PTR)); | |
236 | static void emit_ldXu PARAMS ((const expressionS *, int, const PTR)); | |
237 | static void emit_uldX PARAMS ((const expressionS *, int, const PTR)); | |
238 | static void emit_uldXu PARAMS ((const expressionS *, int, const PTR)); | |
239 | static void emit_ldil PARAMS ((const expressionS *, int, const PTR)); | |
240 | static void emit_stX PARAMS ((const expressionS *, int, const PTR)); | |
241 | static void emit_ustX PARAMS ((const expressionS *, int, const PTR)); | |
242 | static void emit_sextX PARAMS ((const expressionS *, int, const PTR)); | |
243 | static void emit_retjcr PARAMS ((const expressionS *, int, const PTR)); | |
244 | ||
245 | static void s_alpha_text PARAMS ((int)); | |
246 | static void s_alpha_data PARAMS ((int)); | |
247 | #ifndef OBJ_ELF | |
248 | static void s_alpha_comm PARAMS ((int)); | |
249 | static void s_alpha_rdata PARAMS ((int)); | |
250 | #endif | |
251 | #ifdef OBJ_ECOFF | |
252 | static void s_alpha_sdata PARAMS ((int)); | |
253 | #endif | |
254 | #ifdef OBJ_ELF | |
255 | static void s_alpha_section PARAMS ((int)); | |
256 | static void s_alpha_ent PARAMS ((int)); | |
257 | static void s_alpha_end PARAMS ((int)); | |
258 | static void s_alpha_mask PARAMS ((int)); | |
259 | static void s_alpha_frame PARAMS ((int)); | |
260 | static void s_alpha_prologue PARAMS ((int)); | |
4dc7ead9 RH |
261 | static void s_alpha_file PARAMS ((int)); |
262 | static void s_alpha_loc PARAMS ((int)); | |
a8316fe2 | 263 | static void s_alpha_stab PARAMS ((int)); |
252b5132 RH |
264 | static void s_alpha_coff_wrapper PARAMS ((int)); |
265 | #endif | |
266 | #ifdef OBJ_EVAX | |
267 | static void s_alpha_section PARAMS ((int)); | |
268 | #endif | |
269 | static void s_alpha_gprel32 PARAMS ((int)); | |
270 | static void s_alpha_float_cons PARAMS ((int)); | |
271 | static void s_alpha_proc PARAMS ((int)); | |
272 | static void s_alpha_set PARAMS ((int)); | |
273 | static void s_alpha_base PARAMS ((int)); | |
274 | static void s_alpha_align PARAMS ((int)); | |
275 | static void s_alpha_stringer PARAMS ((int)); | |
276 | static void s_alpha_space PARAMS ((int)); | |
19f78583 RH |
277 | static void s_alpha_ucons PARAMS ((int)); |
278 | static void s_alpha_arch PARAMS ((int)); | |
252b5132 RH |
279 | |
280 | static void create_literal_section PARAMS ((const char *, segT *, symbolS **)); | |
281 | #ifndef OBJ_ELF | |
282 | static void select_gp_value PARAMS ((void)); | |
283 | #endif | |
284 | static void alpha_align PARAMS ((int, char *, symbolS *, int)); | |
252b5132 RH |
285 | \f |
286 | /* Generic assembler global variables which must be defined by all | |
287 | targets. */ | |
288 | ||
289 | /* Characters which always start a comment. */ | |
290 | const char comment_chars[] = "#"; | |
291 | ||
292 | /* Characters which start a comment at the beginning of a line. */ | |
293 | const char line_comment_chars[] = "#"; | |
294 | ||
295 | /* Characters which may be used to separate multiple commands on a | |
296 | single line. */ | |
297 | const char line_separator_chars[] = ";"; | |
298 | ||
299 | /* Characters which are used to indicate an exponent in a floating | |
300 | point number. */ | |
301 | const char EXP_CHARS[] = "eE"; | |
302 | ||
303 | /* Characters which mean that a number is a floating point constant, | |
304 | as in 0d1.0. */ | |
305 | #if 0 | |
306 | const char FLT_CHARS[] = "dD"; | |
307 | #else | |
308 | /* XXX: Do all of these really get used on the alpha?? */ | |
309 | char FLT_CHARS[] = "rRsSfFdDxXpP"; | |
310 | #endif | |
311 | ||
312 | #ifdef OBJ_EVAX | |
313 | const char *md_shortopts = "Fm:g+1h:HG:"; | |
314 | #else | |
315 | const char *md_shortopts = "Fm:gG:"; | |
316 | #endif | |
317 | ||
318 | struct option md_longopts[] = { | |
319 | #define OPTION_32ADDR (OPTION_MD_BASE) | |
320 | { "32addr", no_argument, NULL, OPTION_32ADDR }, | |
66498417 | 321 | #define OPTION_RELAX (OPTION_32ADDR + 1) |
252b5132 RH |
322 | { "relax", no_argument, NULL, OPTION_RELAX }, |
323 | #ifdef OBJ_ELF | |
66498417 KH |
324 | #define OPTION_MDEBUG (OPTION_RELAX + 1) |
325 | #define OPTION_NO_MDEBUG (OPTION_MDEBUG + 1) | |
252b5132 RH |
326 | { "mdebug", no_argument, NULL, OPTION_MDEBUG }, |
327 | { "no-mdebug", no_argument, NULL, OPTION_NO_MDEBUG }, | |
328 | #endif | |
329 | { NULL, no_argument, NULL, 0 } | |
330 | }; | |
331 | ||
bc805888 | 332 | size_t md_longopts_size = sizeof (md_longopts); |
252b5132 RH |
333 | \f |
334 | #ifdef OBJ_EVAX | |
335 | #define AXP_REG_R0 0 | |
336 | #define AXP_REG_R16 16 | |
337 | #define AXP_REG_R17 17 | |
338 | #undef AXP_REG_T9 | |
339 | #define AXP_REG_T9 22 | |
340 | #undef AXP_REG_T10 | |
341 | #define AXP_REG_T10 23 | |
342 | #undef AXP_REG_T11 | |
343 | #define AXP_REG_T11 24 | |
344 | #undef AXP_REG_T12 | |
345 | #define AXP_REG_T12 25 | |
346 | #define AXP_REG_AI 25 | |
347 | #undef AXP_REG_FP | |
348 | #define AXP_REG_FP 29 | |
349 | ||
350 | #undef AXP_REG_GP | |
351 | #define AXP_REG_GP AXP_REG_PV | |
352 | #endif /* OBJ_EVAX */ | |
353 | ||
354 | /* The cpu for which we are generating code */ | |
355 | static unsigned alpha_target = AXP_OPCODE_BASE; | |
356 | static const char *alpha_target_name = "<all>"; | |
357 | ||
358 | /* The hash table of instruction opcodes */ | |
359 | static struct hash_control *alpha_opcode_hash; | |
360 | ||
361 | /* The hash table of macro opcodes */ | |
362 | static struct hash_control *alpha_macro_hash; | |
363 | ||
364 | #ifdef OBJ_ECOFF | |
365 | /* The $gp relocation symbol */ | |
366 | static symbolS *alpha_gp_symbol; | |
367 | ||
368 | /* XXX: what is this, and why is it exported? */ | |
369 | valueT alpha_gp_value; | |
370 | #endif | |
371 | ||
372 | /* The current $gp register */ | |
373 | static int alpha_gp_register = AXP_REG_GP; | |
374 | ||
375 | /* A table of the register symbols */ | |
376 | static symbolS *alpha_register_table[64]; | |
377 | ||
378 | /* Constant sections, or sections of constants */ | |
379 | #ifdef OBJ_ECOFF | |
380 | static segT alpha_lita_section; | |
381 | static segT alpha_lit4_section; | |
382 | #endif | |
383 | #ifdef OBJ_EVAX | |
384 | static segT alpha_link_section; | |
385 | static segT alpha_ctors_section; | |
386 | static segT alpha_dtors_section; | |
387 | #endif | |
388 | static segT alpha_lit8_section; | |
389 | ||
1dab94dd | 390 | /* Symbols referring to said sections. */ |
252b5132 RH |
391 | #ifdef OBJ_ECOFF |
392 | static symbolS *alpha_lita_symbol; | |
393 | static symbolS *alpha_lit4_symbol; | |
394 | #endif | |
395 | #ifdef OBJ_EVAX | |
396 | static symbolS *alpha_link_symbol; | |
397 | static symbolS *alpha_ctors_symbol; | |
398 | static symbolS *alpha_dtors_symbol; | |
399 | #endif | |
400 | static symbolS *alpha_lit8_symbol; | |
401 | ||
402 | /* Literal for .litX+0x8000 within .lita */ | |
403 | #ifdef OBJ_ECOFF | |
404 | static offsetT alpha_lit4_literal; | |
405 | static offsetT alpha_lit8_literal; | |
406 | #endif | |
407 | ||
252b5132 | 408 | #ifdef OBJ_ELF |
4dc7ead9 | 409 | /* The active .ent symbol. */ |
252b5132 RH |
410 | static symbolS *alpha_cur_ent_sym; |
411 | #endif | |
412 | ||
413 | /* Is the assembler not allowed to use $at? */ | |
414 | static int alpha_noat_on = 0; | |
415 | ||
416 | /* Are macros enabled? */ | |
417 | static int alpha_macros_on = 1; | |
418 | ||
419 | /* Are floats disabled? */ | |
420 | static int alpha_nofloats_on = 0; | |
421 | ||
422 | /* Are addresses 32 bit? */ | |
423 | static int alpha_addr32_on = 0; | |
424 | ||
425 | /* Symbol labelling the current insn. When the Alpha gas sees | |
426 | foo: | |
427 | .quad 0 | |
428 | and the section happens to not be on an eight byte boundary, it | |
429 | will align both the symbol and the .quad to an eight byte boundary. */ | |
430 | static symbolS *alpha_insn_label; | |
431 | ||
432 | /* Whether we should automatically align data generation pseudo-ops. | |
433 | .align 0 will turn this off. */ | |
434 | static int alpha_auto_align_on = 1; | |
435 | ||
436 | /* The known current alignment of the current section. */ | |
437 | static int alpha_current_align; | |
438 | ||
439 | /* These are exported to ECOFF code. */ | |
440 | unsigned long alpha_gprmask, alpha_fprmask; | |
441 | ||
442 | /* Whether the debugging option was seen. */ | |
443 | static int alpha_debug; | |
444 | ||
445 | #ifdef OBJ_ELF | |
446 | /* Whether we are emitting an mdebug section. */ | |
a8316fe2 | 447 | int alpha_flag_mdebug = -1; |
252b5132 RH |
448 | #endif |
449 | ||
450 | /* Don't fully resolve relocations, allowing code movement in the linker. */ | |
451 | static int alpha_flag_relax; | |
452 | ||
453 | /* What value to give to bfd_set_gp_size. */ | |
454 | static int g_switch_value = 8; | |
455 | ||
456 | #ifdef OBJ_EVAX | |
457 | /* Collect information about current procedure here. */ | |
458 | static struct { | |
459 | symbolS *symbol; /* proc pdesc symbol */ | |
460 | int pdsckind; | |
461 | int framereg; /* register for frame pointer */ | |
462 | int framesize; /* size of frame */ | |
463 | int rsa_offset; | |
464 | int ra_save; | |
465 | int fp_save; | |
466 | long imask; | |
467 | long fmask; | |
468 | int type; | |
469 | int prologue; | |
470 | } alpha_evax_proc; | |
471 | ||
472 | static int alpha_flag_hash_long_names = 0; /* -+ */ | |
473 | static int alpha_flag_show_after_trunc = 0; /* -H */ | |
474 | ||
475 | /* If the -+ switch is given, then a hash is appended to any name that is | |
476 | * longer than 64 characters, else longer symbol names are truncated. | |
477 | */ | |
478 | ||
43b4c25e MM |
479 | #endif |
480 | \f | |
481 | #ifdef RELOC_OP_P | |
482 | /* A table to map the spelling of a relocation operand into an appropriate | |
483 | bfd_reloc_code_real_type type. The table is assumed to be ordered such | |
484 | that op-O_literal indexes into it. */ | |
485 | ||
486 | #define ALPHA_RELOC_TABLE(op) \ | |
19f78583 | 487 | (&alpha_reloc_op[ ((!USER_RELOC_P (op)) \ |
43b4c25e | 488 | ? (abort (), 0) \ |
19f78583 | 489 | : (int) (op) - (int) O_literal) ]) |
43b4c25e | 490 | |
ec8fcf4a RH |
491 | #define DEF(NAME, RELOC, REQ, ALLOW) \ |
492 | { #NAME, sizeof(#NAME)-1, O_##NAME, RELOC, REQ, ALLOW} | |
43b4c25e MM |
493 | |
494 | static const struct alpha_reloc_op_tag { | |
495 | const char *name; /* string to lookup */ | |
496 | size_t length; /* size of the string */ | |
43b4c25e | 497 | operatorT op; /* which operator to use */ |
19f78583 | 498 | bfd_reloc_code_real_type reloc; /* relocation before frob */ |
ec8fcf4a RH |
499 | unsigned int require_seq : 1; /* require a sequence number */ |
500 | unsigned int allow_seq : 1; /* allow a sequence number */ | |
43b4c25e | 501 | } alpha_reloc_op[] = { |
ec8fcf4a RH |
502 | DEF(literal, BFD_RELOC_ALPHA_ELF_LITERAL, 0, 1), |
503 | DEF(lituse_addr, DUMMY_RELOC_LITUSE_ADDR, 1, 1), | |
504 | DEF(lituse_base, DUMMY_RELOC_LITUSE_BASE, 1, 1), | |
505 | DEF(lituse_bytoff, DUMMY_RELOC_LITUSE_BYTOFF, 1, 1), | |
506 | DEF(lituse_jsr, DUMMY_RELOC_LITUSE_JSR, 1, 1), | |
3765b1be RH |
507 | DEF(lituse_tlsgd, DUMMY_RELOC_LITUSE_TLSGD, 1, 1), |
508 | DEF(lituse_tlsldm, DUMMY_RELOC_LITUSE_TLSLDM, 1, 1), | |
ec8fcf4a RH |
509 | DEF(gpdisp, BFD_RELOC_ALPHA_GPDISP, 1, 1), |
510 | DEF(gprelhigh, BFD_RELOC_ALPHA_GPREL_HI16, 0, 0), | |
511 | DEF(gprellow, BFD_RELOC_ALPHA_GPREL_LO16, 0, 0), | |
543833df | 512 | DEF(gprel, BFD_RELOC_GPREL16, 0, 0), |
3765b1be RH |
513 | DEF(samegp, BFD_RELOC_ALPHA_BRSGP, 0, 0), |
514 | DEF(tlsgd, BFD_RELOC_ALPHA_TLSGD, 0, 1), | |
515 | DEF(tlsldm, BFD_RELOC_ALPHA_TLSLDM, 0, 1), | |
516 | DEF(gotdtprel, BFD_RELOC_ALPHA_GOTDTPREL16, 0, 0), | |
517 | DEF(dtprelhi, BFD_RELOC_ALPHA_DTPREL_HI16, 0, 0), | |
518 | DEF(dtprello, BFD_RELOC_ALPHA_DTPREL_LO16, 0, 0), | |
519 | DEF(dtprel, BFD_RELOC_ALPHA_DTPREL16, 0, 0), | |
520 | DEF(gottprel, BFD_RELOC_ALPHA_GOTTPREL16, 0, 0), | |
521 | DEF(tprelhi, BFD_RELOC_ALPHA_TPREL_HI16, 0, 0), | |
522 | DEF(tprello, BFD_RELOC_ALPHA_TPREL_LO16, 0, 0), | |
523 | DEF(tprel, BFD_RELOC_ALPHA_TPREL16, 0, 0), | |
43b4c25e MM |
524 | }; |
525 | ||
19f78583 RH |
526 | #undef DEF |
527 | ||
43b4c25e | 528 | static const int alpha_num_reloc_op |
bc805888 | 529 | = sizeof (alpha_reloc_op) / sizeof (*alpha_reloc_op); |
19f78583 | 530 | #endif /* RELOC_OP_P */ |
43b4c25e MM |
531 | |
532 | /* Maximum # digits needed to hold the largest sequence # */ | |
533 | #define ALPHA_RELOC_DIGITS 25 | |
534 | ||
43b4c25e | 535 | /* Structure to hold explict sequence information. */ |
19f78583 | 536 | struct alpha_reloc_tag |
43b4c25e | 537 | { |
3765b1be RH |
538 | fixS *master; /* the literal reloc */ |
539 | fixS *slaves; /* head of linked list of lituses */ | |
43b4c25e | 540 | segT segment; /* segment relocs are in or undefined_section*/ |
19f78583 RH |
541 | long sequence; /* sequence # */ |
542 | unsigned n_master; /* # of literals */ | |
543 | unsigned n_slaves; /* # of lituses */ | |
3765b1be RH |
544 | unsigned saw_tlsgd : 1; /* true if ... */ |
545 | unsigned saw_tlsldm : 1; | |
546 | unsigned saw_lu_tlsgd : 1; | |
547 | unsigned saw_lu_tlsldm : 1; | |
548 | unsigned multi_section_p : 1; /* true if more than one section was used */ | |
43b4c25e MM |
549 | char string[1]; /* printable form of sequence to hash with */ |
550 | }; | |
551 | ||
552 | /* Hash table to link up literals with the appropriate lituse */ | |
553 | static struct hash_control *alpha_literal_hash; | |
19f78583 RH |
554 | |
555 | /* Sequence numbers for internal use by macros. */ | |
556 | static long next_sequence_num = -1; | |
252b5132 RH |
557 | \f |
558 | /* A table of CPU names and opcode sets. */ | |
559 | ||
66498417 | 560 | static const struct cpu_type { |
252b5132 RH |
561 | const char *name; |
562 | unsigned flags; | |
66498417 | 563 | } cpu_types[] = { |
252b5132 | 564 | /* Ad hoc convention: cpu number gets palcode, process code doesn't. |
1dab94dd | 565 | This supports usage under DU 4.0b that does ".arch ev4", and |
252b5132 RH |
566 | usage in MILO that does -m21064. Probably something more |
567 | specific like -m21064-pal should be used, but oh well. */ | |
568 | ||
569 | { "21064", AXP_OPCODE_BASE|AXP_OPCODE_EV4 }, | |
570 | { "21064a", AXP_OPCODE_BASE|AXP_OPCODE_EV4 }, | |
571 | { "21066", AXP_OPCODE_BASE|AXP_OPCODE_EV4 }, | |
572 | { "21068", AXP_OPCODE_BASE|AXP_OPCODE_EV4 }, | |
573 | { "21164", AXP_OPCODE_BASE|AXP_OPCODE_EV5 }, | |
574 | { "21164a", AXP_OPCODE_BASE|AXP_OPCODE_EV5|AXP_OPCODE_BWX }, | |
575 | { "21164pc", (AXP_OPCODE_BASE|AXP_OPCODE_EV5|AXP_OPCODE_BWX | |
576 | |AXP_OPCODE_MAX) }, | |
577 | { "21264", (AXP_OPCODE_BASE|AXP_OPCODE_EV6|AXP_OPCODE_BWX | |
578 | |AXP_OPCODE_MAX|AXP_OPCODE_CIX) }, | |
dbac4f5b RH |
579 | { "21264a", (AXP_OPCODE_BASE|AXP_OPCODE_EV6|AXP_OPCODE_BWX |
580 | |AXP_OPCODE_MAX|AXP_OPCODE_CIX) }, | |
581 | { "21264b", (AXP_OPCODE_BASE|AXP_OPCODE_EV6|AXP_OPCODE_BWX | |
582 | |AXP_OPCODE_MAX|AXP_OPCODE_CIX) }, | |
252b5132 RH |
583 | |
584 | { "ev4", AXP_OPCODE_BASE }, | |
585 | { "ev45", AXP_OPCODE_BASE }, | |
586 | { "lca45", AXP_OPCODE_BASE }, | |
587 | { "ev5", AXP_OPCODE_BASE }, | |
588 | { "ev56", AXP_OPCODE_BASE|AXP_OPCODE_BWX }, | |
589 | { "pca56", AXP_OPCODE_BASE|AXP_OPCODE_BWX|AXP_OPCODE_MAX }, | |
590 | { "ev6", AXP_OPCODE_BASE|AXP_OPCODE_BWX|AXP_OPCODE_MAX|AXP_OPCODE_CIX }, | |
dbac4f5b RH |
591 | { "ev67", AXP_OPCODE_BASE|AXP_OPCODE_BWX|AXP_OPCODE_MAX|AXP_OPCODE_CIX }, |
592 | { "ev68", AXP_OPCODE_BASE|AXP_OPCODE_BWX|AXP_OPCODE_MAX|AXP_OPCODE_CIX }, | |
252b5132 RH |
593 | |
594 | { "all", AXP_OPCODE_BASE }, | |
446a06c9 | 595 | { 0, 0 } |
252b5132 RH |
596 | }; |
597 | ||
598 | /* The macro table */ | |
599 | ||
600 | static const struct alpha_macro alpha_macros[] = { | |
601 | /* Load/Store macros */ | |
602 | { "lda", emit_lda, NULL, | |
19f78583 | 603 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 RH |
604 | { "ldah", emit_ldah, NULL, |
605 | { MACRO_IR, MACRO_EXP, MACRO_EOA } }, | |
606 | ||
607 | { "ldl", emit_ir_load, "ldl", | |
19f78583 | 608 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 609 | { "ldl_l", emit_ir_load, "ldl_l", |
19f78583 | 610 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 611 | { "ldq", emit_ir_load, "ldq", |
19f78583 | 612 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 613 | { "ldq_l", emit_ir_load, "ldq_l", |
19f78583 | 614 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 615 | { "ldq_u", emit_ir_load, "ldq_u", |
19f78583 | 616 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 617 | { "ldf", emit_loadstore, "ldf", |
19f78583 | 618 | { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 619 | { "ldg", emit_loadstore, "ldg", |
19f78583 | 620 | { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 621 | { "lds", emit_loadstore, "lds", |
19f78583 | 622 | { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 623 | { "ldt", emit_loadstore, "ldt", |
19f78583 | 624 | { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 625 | |
32ff5c2e | 626 | { "ldb", emit_ldX, (PTR) 0, |
19f78583 | 627 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 628 | { "ldbu", emit_ldXu, (PTR) 0, |
19f78583 | 629 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 630 | { "ldw", emit_ldX, (PTR) 1, |
19f78583 | 631 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 632 | { "ldwu", emit_ldXu, (PTR) 1, |
19f78583 | 633 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 634 | |
32ff5c2e | 635 | { "uldw", emit_uldX, (PTR) 1, |
19f78583 | 636 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 637 | { "uldwu", emit_uldXu, (PTR) 1, |
19f78583 | 638 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 639 | { "uldl", emit_uldX, (PTR) 2, |
19f78583 | 640 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 641 | { "uldlu", emit_uldXu, (PTR) 2, |
19f78583 | 642 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 643 | { "uldq", emit_uldXu, (PTR) 3, |
19f78583 | 644 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 RH |
645 | |
646 | { "ldgp", emit_ldgp, NULL, | |
647 | { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA } }, | |
648 | ||
649 | { "ldi", emit_lda, NULL, | |
650 | { MACRO_IR, MACRO_EXP, MACRO_EOA } }, | |
651 | { "ldil", emit_ldil, NULL, | |
652 | { MACRO_IR, MACRO_EXP, MACRO_EOA } }, | |
653 | { "ldiq", emit_lda, NULL, | |
654 | { MACRO_IR, MACRO_EXP, MACRO_EOA } }, | |
655 | #if 0 | |
656 | { "ldif" emit_ldiq, NULL, | |
657 | { MACRO_FPR, MACRO_EXP, MACRO_EOA } }, | |
658 | { "ldid" emit_ldiq, NULL, | |
659 | { MACRO_FPR, MACRO_EXP, MACRO_EOA } }, | |
660 | { "ldig" emit_ldiq, NULL, | |
661 | { MACRO_FPR, MACRO_EXP, MACRO_EOA } }, | |
662 | { "ldis" emit_ldiq, NULL, | |
663 | { MACRO_FPR, MACRO_EXP, MACRO_EOA } }, | |
664 | { "ldit" emit_ldiq, NULL, | |
665 | { MACRO_FPR, MACRO_EXP, MACRO_EOA } }, | |
666 | #endif | |
667 | ||
668 | { "stl", emit_loadstore, "stl", | |
19f78583 | 669 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 670 | { "stl_c", emit_loadstore, "stl_c", |
19f78583 | 671 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 672 | { "stq", emit_loadstore, "stq", |
19f78583 | 673 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 674 | { "stq_c", emit_loadstore, "stq_c", |
19f78583 | 675 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 676 | { "stq_u", emit_loadstore, "stq_u", |
19f78583 | 677 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 678 | { "stf", emit_loadstore, "stf", |
19f78583 | 679 | { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 680 | { "stg", emit_loadstore, "stg", |
19f78583 | 681 | { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 682 | { "sts", emit_loadstore, "sts", |
19f78583 | 683 | { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 684 | { "stt", emit_loadstore, "stt", |
19f78583 | 685 | { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 | 686 | |
32ff5c2e | 687 | { "stb", emit_stX, (PTR) 0, |
19f78583 | 688 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 689 | { "stw", emit_stX, (PTR) 1, |
19f78583 | 690 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 691 | { "ustw", emit_ustX, (PTR) 1, |
19f78583 | 692 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 693 | { "ustl", emit_ustX, (PTR) 2, |
19f78583 | 694 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
32ff5c2e | 695 | { "ustq", emit_ustX, (PTR) 3, |
19f78583 | 696 | { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_EOA } }, |
252b5132 RH |
697 | |
698 | /* Arithmetic macros */ | |
699 | #if 0 | |
700 | { "absl" emit_absl, 1, { IR } }, | |
701 | { "absl" emit_absl, 2, { IR, IR } }, | |
702 | { "absl" emit_absl, 2, { EXP, IR } }, | |
703 | { "absq" emit_absq, 1, { IR } }, | |
704 | { "absq" emit_absq, 2, { IR, IR } }, | |
705 | { "absq" emit_absq, 2, { EXP, IR } }, | |
706 | #endif | |
707 | ||
32ff5c2e | 708 | { "sextb", emit_sextX, (PTR) 0, |
252b5132 RH |
709 | { MACRO_IR, MACRO_IR, MACRO_EOA, |
710 | MACRO_IR, MACRO_EOA, | |
711 | /* MACRO_EXP, MACRO_IR, MACRO_EOA */ } }, | |
32ff5c2e | 712 | { "sextw", emit_sextX, (PTR) 1, |
252b5132 RH |
713 | { MACRO_IR, MACRO_IR, MACRO_EOA, |
714 | MACRO_IR, MACRO_EOA, | |
715 | /* MACRO_EXP, MACRO_IR, MACRO_EOA */ } }, | |
716 | ||
717 | { "divl", emit_division, "__divl", | |
718 | { MACRO_IR, MACRO_IR, MACRO_IR, MACRO_EOA, | |
719 | MACRO_IR, MACRO_IR, MACRO_EOA, | |
720 | /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA, | |
721 | MACRO_IR, MACRO_EXP, MACRO_EOA */ } }, | |
722 | { "divlu", emit_division, "__divlu", | |
723 | { MACRO_IR, MACRO_IR, MACRO_IR, MACRO_EOA, | |
724 | MACRO_IR, MACRO_IR, MACRO_EOA, | |
725 | /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA, | |
726 | MACRO_IR, MACRO_EXP, MACRO_EOA */ } }, | |
727 | { "divq", emit_division, "__divq", | |
728 | { MACRO_IR, MACRO_IR, MACRO_IR, MACRO_EOA, | |
729 | MACRO_IR, MACRO_IR, MACRO_EOA, | |
730 | /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA, | |
731 | MACRO_IR, MACRO_EXP, MACRO_EOA */ } }, | |
732 | { "divqu", emit_division, "__divqu", | |
733 | { MACRO_IR, MACRO_IR, MACRO_IR, MACRO_EOA, | |
734 | MACRO_IR, MACRO_IR, MACRO_EOA, | |
735 | /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA, | |
736 | MACRO_IR, MACRO_EXP, MACRO_EOA */ } }, | |
737 | { "reml", emit_division, "__reml", | |
738 | { MACRO_IR, MACRO_IR, MACRO_IR, MACRO_EOA, | |
739 | MACRO_IR, MACRO_IR, MACRO_EOA, | |
740 | /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA, | |
741 | MACRO_IR, MACRO_EXP, MACRO_EOA */ } }, | |
742 | { "remlu", emit_division, "__remlu", | |
743 | { MACRO_IR, MACRO_IR, MACRO_IR, MACRO_EOA, | |
744 | MACRO_IR, MACRO_IR, MACRO_EOA, | |
745 | /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA, | |
746 | MACRO_IR, MACRO_EXP, MACRO_EOA */ } }, | |
747 | { "remq", emit_division, "__remq", | |
748 | { MACRO_IR, MACRO_IR, MACRO_IR, MACRO_EOA, | |
749 | MACRO_IR, MACRO_IR, MACRO_EOA, | |
750 | /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA, | |
751 | MACRO_IR, MACRO_EXP, MACRO_EOA */ } }, | |
752 | { "remqu", emit_division, "__remqu", | |
753 | { MACRO_IR, MACRO_IR, MACRO_IR, MACRO_EOA, | |
754 | MACRO_IR, MACRO_IR, MACRO_EOA, | |
755 | /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA, | |
756 | MACRO_IR, MACRO_EXP, MACRO_EOA */ } }, | |
757 | ||
758 | { "jsr", emit_jsrjmp, "jsr", | |
19f78583 RH |
759 | { MACRO_PIR, MACRO_EXP, MACRO_EOA, |
760 | MACRO_PIR, MACRO_EOA, | |
761 | MACRO_IR, MACRO_EXP, MACRO_EOA, | |
762 | MACRO_EXP, MACRO_EOA } }, | |
252b5132 | 763 | { "jmp", emit_jsrjmp, "jmp", |
19f78583 RH |
764 | { MACRO_PIR, MACRO_EXP, MACRO_EOA, |
765 | MACRO_PIR, MACRO_EOA, | |
766 | MACRO_IR, MACRO_EXP, MACRO_EOA, | |
767 | MACRO_EXP, MACRO_EOA } }, | |
252b5132 RH |
768 | { "ret", emit_retjcr, "ret", |
769 | { MACRO_IR, MACRO_EXP, MACRO_EOA, | |
770 | MACRO_IR, MACRO_EOA, | |
771 | MACRO_PIR, MACRO_EXP, MACRO_EOA, | |
772 | MACRO_PIR, MACRO_EOA, | |
773 | MACRO_EXP, MACRO_EOA, | |
774 | MACRO_EOA } }, | |
775 | { "jcr", emit_retjcr, "jcr", | |
776 | { MACRO_IR, MACRO_EXP, MACRO_EOA, | |
777 | MACRO_IR, MACRO_EOA, | |
778 | MACRO_PIR, MACRO_EXP, MACRO_EOA, | |
779 | MACRO_PIR, MACRO_EOA, | |
780 | MACRO_EXP, MACRO_EOA, | |
781 | MACRO_EOA } }, | |
782 | { "jsr_coroutine", emit_retjcr, "jcr", | |
783 | { MACRO_IR, MACRO_EXP, MACRO_EOA, | |
784 | MACRO_IR, MACRO_EOA, | |
785 | MACRO_PIR, MACRO_EXP, MACRO_EOA, | |
786 | MACRO_PIR, MACRO_EOA, | |
787 | MACRO_EXP, MACRO_EOA, | |
788 | MACRO_EOA } }, | |
789 | }; | |
790 | ||
446a06c9 | 791 | static const unsigned int alpha_num_macros |
bc805888 | 792 | = sizeof (alpha_macros) / sizeof (*alpha_macros); |
252b5132 RH |
793 | \f |
794 | /* Public interface functions */ | |
795 | ||
796 | /* This function is called once, at assembler startup time. It sets | |
797 | up all the tables, etc. that the MD part of the assembler will | |
798 | need, that can be determined before arguments are parsed. */ | |
799 | ||
800 | void | |
801 | md_begin () | |
802 | { | |
803 | unsigned int i; | |
804 | ||
bf29b231 RH |
805 | /* Verify that X_op field is wide enough. */ |
806 | { | |
807 | expressionS e; | |
446a06c9 MM |
808 | e.X_op = O_max; |
809 | assert (e.X_op == O_max); | |
bf29b231 RH |
810 | } |
811 | ||
252b5132 RH |
812 | /* Create the opcode hash table */ |
813 | ||
814 | alpha_opcode_hash = hash_new (); | |
66498417 | 815 | for (i = 0; i < alpha_num_opcodes;) |
252b5132 RH |
816 | { |
817 | const char *name, *retval, *slash; | |
818 | ||
819 | name = alpha_opcodes[i].name; | |
66498417 | 820 | retval = hash_insert (alpha_opcode_hash, name, (PTR) &alpha_opcodes[i]); |
252b5132 | 821 | if (retval) |
19f78583 RH |
822 | as_fatal (_("internal error: can't hash opcode `%s': %s"), |
823 | name, retval); | |
252b5132 RH |
824 | |
825 | /* Some opcodes include modifiers of various sorts with a "/mod" | |
826 | syntax, like the architecture manual suggests. However, for | |
827 | use with gcc at least, we also need access to those same opcodes | |
828 | without the "/". */ | |
829 | ||
830 | if ((slash = strchr (name, '/')) != NULL) | |
831 | { | |
832 | char *p = xmalloc (strlen (name)); | |
833 | memcpy (p, name, slash - name); | |
834 | strcpy (p + (slash - name), slash + 1); | |
835 | ||
66498417 | 836 | (void) hash_insert (alpha_opcode_hash, p, (PTR) &alpha_opcodes[i]); |
252b5132 RH |
837 | /* Ignore failures -- the opcode table does duplicate some |
838 | variants in different forms, like "hw_stq" and "hw_st/q". */ | |
839 | } | |
840 | ||
841 | while (++i < alpha_num_opcodes | |
842 | && (alpha_opcodes[i].name == name | |
843 | || !strcmp (alpha_opcodes[i].name, name))) | |
844 | continue; | |
845 | } | |
846 | ||
847 | /* Create the macro hash table */ | |
848 | ||
849 | alpha_macro_hash = hash_new (); | |
66498417 | 850 | for (i = 0; i < alpha_num_macros;) |
252b5132 RH |
851 | { |
852 | const char *name, *retval; | |
853 | ||
854 | name = alpha_macros[i].name; | |
66498417 | 855 | retval = hash_insert (alpha_macro_hash, name, (PTR) &alpha_macros[i]); |
252b5132 | 856 | if (retval) |
66498417 KH |
857 | as_fatal (_("internal error: can't hash macro `%s': %s"), |
858 | name, retval); | |
252b5132 RH |
859 | |
860 | while (++i < alpha_num_macros | |
861 | && (alpha_macros[i].name == name | |
862 | || !strcmp (alpha_macros[i].name, name))) | |
863 | continue; | |
864 | } | |
865 | ||
866 | /* Construct symbols for each of the registers */ | |
867 | ||
868 | for (i = 0; i < 32; ++i) | |
869 | { | |
870 | char name[4]; | |
bc805888 | 871 | sprintf (name, "$%d", i); |
32ff5c2e KH |
872 | alpha_register_table[i] = symbol_create (name, reg_section, i, |
873 | &zero_address_frag); | |
252b5132 RH |
874 | } |
875 | for (; i < 64; ++i) | |
876 | { | |
877 | char name[5]; | |
66498417 | 878 | sprintf (name, "$f%d", i - 32); |
32ff5c2e KH |
879 | alpha_register_table[i] = symbol_create (name, reg_section, i, |
880 | &zero_address_frag); | |
252b5132 RH |
881 | } |
882 | ||
883 | /* Create the special symbols and sections we'll be using */ | |
884 | ||
885 | /* So .sbss will get used for tiny objects. */ | |
886 | bfd_set_gp_size (stdoutput, g_switch_value); | |
887 | ||
888 | #ifdef OBJ_ECOFF | |
889 | create_literal_section (".lita", &alpha_lita_section, &alpha_lita_symbol); | |
890 | ||
891 | /* For handling the GP, create a symbol that won't be output in the | |
892 | symbol table. We'll edit it out of relocs later. */ | |
893 | alpha_gp_symbol = symbol_create ("<GP value>", alpha_lita_section, 0x8000, | |
894 | &zero_address_frag); | |
895 | #endif | |
896 | ||
897 | #ifdef OBJ_EVAX | |
898 | create_literal_section (".link", &alpha_link_section, &alpha_link_symbol); | |
899 | #endif | |
900 | ||
901 | #ifdef OBJ_ELF | |
902 | if (ECOFF_DEBUGGING) | |
903 | { | |
32ff5c2e | 904 | segT sec = subseg_new (".mdebug", (subsegT) 0); |
66498417 | 905 | bfd_set_section_flags (stdoutput, sec, SEC_HAS_CONTENTS | SEC_READONLY); |
32ff5c2e | 906 | bfd_set_section_alignment (stdoutput, sec, 3); |
252b5132 RH |
907 | } |
908 | #endif /* OBJ_ELF */ | |
909 | ||
43b4c25e | 910 | /* Create literal lookup hash table. */ |
32ff5c2e | 911 | alpha_literal_hash = hash_new (); |
19f78583 RH |
912 | |
913 | subseg_set (text_section, 0); | |
252b5132 RH |
914 | } |
915 | ||
916 | /* The public interface to the instruction assembler. */ | |
917 | ||
918 | void | |
919 | md_assemble (str) | |
920 | char *str; | |
921 | { | |
922 | char opname[32]; /* current maximum is 13 */ | |
923 | expressionS tok[MAX_INSN_ARGS]; | |
446a06c9 MM |
924 | int ntok, trunclen; |
925 | size_t opnamelen; | |
252b5132 RH |
926 | |
927 | /* split off the opcode */ | |
21b10511 | 928 | opnamelen = strspn (str, "abcdefghijklmnopqrstuvwxyz_/46819"); |
252b5132 RH |
929 | trunclen = (opnamelen < sizeof (opname) - 1 |
930 | ? opnamelen | |
931 | : sizeof (opname) - 1); | |
932 | memcpy (opname, str, trunclen); | |
933 | opname[trunclen] = '\0'; | |
934 | ||
935 | /* tokenize the rest of the line */ | |
936 | if ((ntok = tokenize_arguments (str + opnamelen, tok, MAX_INSN_ARGS)) < 0) | |
937 | { | |
43b4c25e MM |
938 | if (ntok != TOKENIZE_ERROR_REPORT) |
939 | as_bad (_("syntax error")); | |
940 | ||
252b5132 RH |
941 | return; |
942 | } | |
943 | ||
944 | /* finish it off */ | |
945 | assemble_tokens (opname, tok, ntok, alpha_macros_on); | |
946 | } | |
947 | ||
948 | /* Round up a section's size to the appropriate boundary. */ | |
949 | ||
950 | valueT | |
951 | md_section_align (seg, size) | |
952 | segT seg; | |
953 | valueT size; | |
954 | { | |
32ff5c2e KH |
955 | int align = bfd_get_section_alignment (stdoutput, seg); |
956 | valueT mask = ((valueT) 1 << align) - 1; | |
252b5132 RH |
957 | |
958 | return (size + mask) & ~mask; | |
959 | } | |
960 | ||
961 | /* Turn a string in input_line_pointer into a floating point constant | |
bc0d738a NC |
962 | of type TYPE, and store the appropriate bytes in *LITP. The number |
963 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
252b5132 RH |
964 | returned, or NULL on OK. */ |
965 | ||
966 | /* Equal to MAX_PRECISION in atof-ieee.c */ | |
967 | #define MAX_LITTLENUMS 6 | |
968 | ||
969 | extern char *vax_md_atof PARAMS ((int, char *, int *)); | |
970 | ||
971 | char * | |
972 | md_atof (type, litP, sizeP) | |
973 | char type; | |
974 | char *litP; | |
975 | int *sizeP; | |
976 | { | |
977 | int prec; | |
978 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
979 | LITTLENUM_TYPE *wordP; | |
980 | char *t; | |
981 | ||
982 | switch (type) | |
983 | { | |
984 | /* VAX floats */ | |
985 | case 'G': | |
986 | /* VAX md_atof doesn't like "G" for some reason. */ | |
987 | type = 'g'; | |
988 | case 'F': | |
989 | case 'D': | |
990 | return vax_md_atof (type, litP, sizeP); | |
991 | ||
992 | /* IEEE floats */ | |
993 | case 'f': | |
994 | prec = 2; | |
995 | break; | |
996 | ||
997 | case 'd': | |
998 | prec = 4; | |
999 | break; | |
1000 | ||
1001 | case 'x': | |
1002 | case 'X': | |
1003 | prec = 6; | |
1004 | break; | |
1005 | ||
1006 | case 'p': | |
1007 | case 'P': | |
1008 | prec = 6; | |
1009 | break; | |
1010 | ||
1011 | default: | |
1012 | *sizeP = 0; | |
1013 | return _("Bad call to MD_ATOF()"); | |
1014 | } | |
1015 | t = atof_ieee (input_line_pointer, type, words); | |
1016 | if (t) | |
1017 | input_line_pointer = t; | |
1018 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
1019 | ||
1020 | for (wordP = words + prec - 1; prec--;) | |
1021 | { | |
1022 | md_number_to_chars (litP, (long) (*wordP--), sizeof (LITTLENUM_TYPE)); | |
1023 | litP += sizeof (LITTLENUM_TYPE); | |
1024 | } | |
1025 | ||
1026 | return 0; | |
1027 | } | |
1028 | ||
1029 | /* Take care of the target-specific command-line options. */ | |
1030 | ||
1031 | int | |
1032 | md_parse_option (c, arg) | |
1033 | int c; | |
1034 | char *arg; | |
1035 | { | |
1036 | switch (c) | |
1037 | { | |
1038 | case 'F': | |
1039 | alpha_nofloats_on = 1; | |
1040 | break; | |
1041 | ||
1042 | case OPTION_32ADDR: | |
1043 | alpha_addr32_on = 1; | |
1044 | break; | |
1045 | ||
1046 | case 'g': | |
1047 | alpha_debug = 1; | |
1048 | break; | |
1049 | ||
1050 | case 'G': | |
32ff5c2e | 1051 | g_switch_value = atoi (arg); |
252b5132 RH |
1052 | break; |
1053 | ||
1054 | case 'm': | |
1055 | { | |
1056 | const struct cpu_type *p; | |
1057 | for (p = cpu_types; p->name; ++p) | |
32ff5c2e | 1058 | if (strcmp (arg, p->name) == 0) |
252b5132 RH |
1059 | { |
1060 | alpha_target_name = p->name, alpha_target = p->flags; | |
1061 | goto found; | |
1062 | } | |
32ff5c2e | 1063 | as_warn (_("Unknown CPU identifier `%s'"), arg); |
252b5132 RH |
1064 | found:; |
1065 | } | |
1066 | break; | |
1067 | ||
1068 | #ifdef OBJ_EVAX | |
1dab94dd | 1069 | case '+': /* For g++. Hash any name > 63 chars long. */ |
252b5132 RH |
1070 | alpha_flag_hash_long_names = 1; |
1071 | break; | |
1072 | ||
1073 | case 'H': /* Show new symbol after hash truncation */ | |
1074 | alpha_flag_show_after_trunc = 1; | |
1075 | break; | |
1076 | ||
1077 | case 'h': /* for gnu-c/vax compatibility. */ | |
1078 | break; | |
1079 | #endif | |
1080 | ||
1081 | case OPTION_RELAX: | |
1082 | alpha_flag_relax = 1; | |
1083 | break; | |
1084 | ||
1085 | #ifdef OBJ_ELF | |
1086 | case OPTION_MDEBUG: | |
1087 | alpha_flag_mdebug = 1; | |
1088 | break; | |
1089 | case OPTION_NO_MDEBUG: | |
1090 | alpha_flag_mdebug = 0; | |
1091 | break; | |
1092 | #endif | |
1093 | ||
1094 | default: | |
1095 | return 0; | |
1096 | } | |
1097 | ||
1098 | return 1; | |
1099 | } | |
1100 | ||
1101 | /* Print a description of the command-line options that we accept. */ | |
1102 | ||
1103 | void | |
1104 | md_show_usage (stream) | |
1105 | FILE *stream; | |
1106 | { | |
32ff5c2e | 1107 | fputs (_("\ |
252b5132 RH |
1108 | Alpha options:\n\ |
1109 | -32addr treat addresses as 32-bit values\n\ | |
1110 | -F lack floating point instructions support\n\ | |
dbac4f5b | 1111 | -mev4 | -mev45 | -mev5 | -mev56 | -mpca56 | -mev6 | -mev67 | -mev68 | -mall\n\ |
252b5132 | 1112 | specify variant of Alpha architecture\n\ |
dbac4f5b | 1113 | -m21064 | -m21066 | -m21164 | -m21164a | -m21164pc | -m21264 | -m21264a | -m21264b\n\ |
252b5132 RH |
1114 | these variants include PALcode opcodes\n"), |
1115 | stream); | |
1116 | #ifdef OBJ_EVAX | |
1117 | fputs (_("\ | |
1118 | VMS options:\n\ | |
1119 | -+ hash encode (don't truncate) names longer than 64 characters\n\ | |
1120 | -H show new symbol after hash truncation\n"), | |
1121 | stream); | |
1122 | #endif | |
1123 | } | |
1124 | ||
1125 | /* Decide from what point a pc-relative relocation is relative to, | |
1126 | relative to the pc-relative fixup. Er, relatively speaking. */ | |
1127 | ||
1128 | long | |
1129 | md_pcrel_from (fixP) | |
1130 | fixS *fixP; | |
1131 | { | |
1132 | valueT addr = fixP->fx_where + fixP->fx_frag->fr_address; | |
1133 | switch (fixP->fx_r_type) | |
1134 | { | |
1135 | case BFD_RELOC_ALPHA_GPDISP: | |
1136 | case BFD_RELOC_ALPHA_GPDISP_HI16: | |
1137 | case BFD_RELOC_ALPHA_GPDISP_LO16: | |
1138 | return addr; | |
1139 | default: | |
1140 | return fixP->fx_size + addr; | |
1141 | } | |
1142 | } | |
1143 | ||
1144 | /* Attempt to simplify or even eliminate a fixup. The return value is | |
1145 | ignored; perhaps it was once meaningful, but now it is historical. | |
1146 | To indicate that a fixup has been eliminated, set fixP->fx_done. | |
1147 | ||
1148 | For ELF, here it is that we transform the GPDISP_HI16 reloc we used | |
1149 | internally into the GPDISP reloc used externally. We had to do | |
1150 | this so that we'd have the GPDISP_LO16 reloc as a tag to compute | |
1151 | the distance to the "lda" instruction for setting the addend to | |
1152 | GPDISP. */ | |
1153 | ||
94f592af | 1154 | void |
5ce56ab9 | 1155 | md_apply_fix3 (fixP, valP, seg) |
252b5132 | 1156 | fixS *fixP; |
94f592af | 1157 | valueT * valP; |
ca3f7695 | 1158 | segT seg; |
252b5132 RH |
1159 | { |
1160 | char * const fixpos = fixP->fx_frag->fr_literal + fixP->fx_where; | |
94f592af | 1161 | valueT value = * valP; |
252b5132 RH |
1162 | unsigned image, size; |
1163 | ||
1164 | switch (fixP->fx_r_type) | |
1165 | { | |
1166 | /* The GPDISP relocations are processed internally with a symbol | |
1167 | referring to the current function; we need to drop in a value | |
1168 | which, when added to the address of the start of the function, | |
1169 | gives the desired GP. */ | |
1170 | case BFD_RELOC_ALPHA_GPDISP_HI16: | |
1171 | { | |
1172 | fixS *next = fixP->fx_next; | |
252b5132 | 1173 | |
19f78583 RH |
1174 | /* With user-specified !gpdisp relocations, we can be missing |
1175 | the matching LO16 reloc. We will have already issued an | |
1176 | error message. */ | |
1177 | if (next) | |
1178 | fixP->fx_offset = (next->fx_frag->fr_address + next->fx_where | |
1179 | - fixP->fx_frag->fr_address - fixP->fx_where); | |
252b5132 RH |
1180 | |
1181 | value = (value - sign_extend_16 (value)) >> 16; | |
1182 | } | |
1183 | #ifdef OBJ_ELF | |
1184 | fixP->fx_r_type = BFD_RELOC_ALPHA_GPDISP; | |
1185 | #endif | |
1186 | goto do_reloc_gp; | |
1187 | ||
1188 | case BFD_RELOC_ALPHA_GPDISP_LO16: | |
1189 | value = sign_extend_16 (value); | |
1190 | fixP->fx_offset = 0; | |
1191 | #ifdef OBJ_ELF | |
1192 | fixP->fx_done = 1; | |
1193 | #endif | |
1194 | ||
1195 | do_reloc_gp: | |
ca3f7695 | 1196 | fixP->fx_addsy = section_symbol (seg); |
252b5132 RH |
1197 | md_number_to_chars (fixpos, value, 2); |
1198 | break; | |
1199 | ||
1200 | case BFD_RELOC_16: | |
1201 | if (fixP->fx_pcrel) | |
1202 | fixP->fx_r_type = BFD_RELOC_16_PCREL; | |
1203 | size = 2; | |
1204 | goto do_reloc_xx; | |
1205 | case BFD_RELOC_32: | |
1206 | if (fixP->fx_pcrel) | |
1207 | fixP->fx_r_type = BFD_RELOC_32_PCREL; | |
1208 | size = 4; | |
1209 | goto do_reloc_xx; | |
1210 | case BFD_RELOC_64: | |
1211 | if (fixP->fx_pcrel) | |
1212 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
1213 | size = 8; | |
1214 | do_reloc_xx: | |
1215 | if (fixP->fx_pcrel == 0 && fixP->fx_addsy == 0) | |
1216 | { | |
1217 | md_number_to_chars (fixpos, value, size); | |
1218 | goto done; | |
1219 | } | |
94f592af | 1220 | return; |
252b5132 RH |
1221 | |
1222 | #ifdef OBJ_ECOFF | |
1223 | case BFD_RELOC_GPREL32: | |
1224 | assert (fixP->fx_subsy == alpha_gp_symbol); | |
1225 | fixP->fx_subsy = 0; | |
1226 | /* FIXME: inherited this obliviousness of `value' -- why? */ | |
1227 | md_number_to_chars (fixpos, -alpha_gp_value, 4); | |
1228 | break; | |
19f78583 | 1229 | #else |
252b5132 | 1230 | case BFD_RELOC_GPREL32: |
252b5132 | 1231 | #endif |
19f78583 RH |
1232 | case BFD_RELOC_GPREL16: |
1233 | case BFD_RELOC_ALPHA_GPREL_HI16: | |
1234 | case BFD_RELOC_ALPHA_GPREL_LO16: | |
94f592af | 1235 | return; |
252b5132 RH |
1236 | |
1237 | case BFD_RELOC_23_PCREL_S2: | |
1238 | if (fixP->fx_pcrel == 0 && fixP->fx_addsy == 0) | |
1239 | { | |
32ff5c2e | 1240 | image = bfd_getl32 (fixpos); |
252b5132 RH |
1241 | image = (image & ~0x1FFFFF) | ((value >> 2) & 0x1FFFFF); |
1242 | goto write_done; | |
1243 | } | |
94f592af | 1244 | return; |
252b5132 RH |
1245 | |
1246 | case BFD_RELOC_ALPHA_HINT: | |
1247 | if (fixP->fx_pcrel == 0 && fixP->fx_addsy == 0) | |
1248 | { | |
32ff5c2e | 1249 | image = bfd_getl32 (fixpos); |
252b5132 RH |
1250 | image = (image & ~0x3FFF) | ((value >> 2) & 0x3FFF); |
1251 | goto write_done; | |
1252 | } | |
94f592af | 1253 | return; |
252b5132 | 1254 | |
543833df RH |
1255 | #ifdef OBJ_ELF |
1256 | case BFD_RELOC_ALPHA_BRSGP: | |
3765b1be RH |
1257 | case BFD_RELOC_ALPHA_TLSGD: |
1258 | case BFD_RELOC_ALPHA_TLSLDM: | |
1259 | case BFD_RELOC_ALPHA_GOTDTPREL16: | |
1260 | case BFD_RELOC_ALPHA_DTPREL_HI16: | |
1261 | case BFD_RELOC_ALPHA_DTPREL_LO16: | |
1262 | case BFD_RELOC_ALPHA_DTPREL16: | |
1263 | case BFD_RELOC_ALPHA_GOTTPREL16: | |
1264 | case BFD_RELOC_ALPHA_TPREL_HI16: | |
1265 | case BFD_RELOC_ALPHA_TPREL_LO16: | |
1266 | case BFD_RELOC_ALPHA_TPREL16: | |
543833df RH |
1267 | return; |
1268 | #endif | |
1269 | ||
252b5132 RH |
1270 | #ifdef OBJ_ECOFF |
1271 | case BFD_RELOC_ALPHA_LITERAL: | |
1272 | md_number_to_chars (fixpos, value, 2); | |
94f592af | 1273 | return; |
252b5132 | 1274 | #endif |
252b5132 RH |
1275 | case BFD_RELOC_ALPHA_ELF_LITERAL: |
1276 | case BFD_RELOC_ALPHA_LITUSE: | |
252b5132 RH |
1277 | case BFD_RELOC_ALPHA_LINKAGE: |
1278 | case BFD_RELOC_ALPHA_CODEADDR: | |
94f592af | 1279 | return; |
43b4c25e | 1280 | |
b96ed59a PB |
1281 | case BFD_RELOC_VTABLE_INHERIT: |
1282 | case BFD_RELOC_VTABLE_ENTRY: | |
94f592af | 1283 | return; |
b96ed59a | 1284 | |
252b5132 RH |
1285 | default: |
1286 | { | |
1287 | const struct alpha_operand *operand; | |
1288 | ||
32ff5c2e | 1289 | if ((int) fixP->fx_r_type >= 0) |
252b5132 RH |
1290 | as_fatal (_("unhandled relocation type %s"), |
1291 | bfd_get_reloc_code_name (fixP->fx_r_type)); | |
1292 | ||
32ff5c2e KH |
1293 | assert (-(int) fixP->fx_r_type < (int) alpha_num_operands); |
1294 | operand = &alpha_operands[-(int) fixP->fx_r_type]; | |
252b5132 RH |
1295 | |
1296 | /* The rest of these fixups only exist internally during symbol | |
1297 | resolution and have no representation in the object file. | |
1298 | Therefore they must be completely resolved as constants. */ | |
1299 | ||
1300 | if (fixP->fx_addsy != 0 | |
49309057 | 1301 | && S_GET_SEGMENT (fixP->fx_addsy) != absolute_section) |
252b5132 RH |
1302 | as_bad_where (fixP->fx_file, fixP->fx_line, |
1303 | _("non-absolute expression in constant field")); | |
1304 | ||
32ff5c2e KH |
1305 | image = bfd_getl32 (fixpos); |
1306 | image = insert_operand (image, operand, (offsetT) value, | |
1307 | fixP->fx_file, fixP->fx_line); | |
252b5132 RH |
1308 | } |
1309 | goto write_done; | |
1310 | } | |
1311 | ||
1312 | if (fixP->fx_addsy != 0 || fixP->fx_pcrel != 0) | |
94f592af | 1313 | return; |
252b5132 RH |
1314 | else |
1315 | { | |
32ff5c2e | 1316 | as_warn_where (fixP->fx_file, fixP->fx_line, |
66498417 | 1317 | _("type %d reloc done?\n"), (int) fixP->fx_r_type); |
252b5132 RH |
1318 | goto done; |
1319 | } | |
1320 | ||
1321 | write_done: | |
32ff5c2e | 1322 | md_number_to_chars (fixpos, image, 4); |
252b5132 RH |
1323 | |
1324 | done: | |
1325 | fixP->fx_done = 1; | |
252b5132 RH |
1326 | } |
1327 | ||
94f592af | 1328 | /* Look for a register name in the given symbol. */ |
252b5132 RH |
1329 | |
1330 | symbolS * | |
32ff5c2e | 1331 | md_undefined_symbol (name) |
252b5132 RH |
1332 | char *name; |
1333 | { | |
1334 | if (*name == '$') | |
1335 | { | |
1336 | int is_float = 0, num; | |
1337 | ||
1338 | switch (*++name) | |
1339 | { | |
1340 | case 'f': | |
1341 | if (name[1] == 'p' && name[2] == '\0') | |
1342 | return alpha_register_table[AXP_REG_FP]; | |
1343 | is_float = 32; | |
1344 | /* FALLTHRU */ | |
1345 | ||
1346 | case 'r': | |
3882b010 | 1347 | if (!ISDIGIT (*++name)) |
252b5132 RH |
1348 | break; |
1349 | /* FALLTHRU */ | |
1350 | ||
1351 | case '0': case '1': case '2': case '3': case '4': | |
1352 | case '5': case '6': case '7': case '8': case '9': | |
1353 | if (name[1] == '\0') | |
1354 | num = name[0] - '0'; | |
3882b010 | 1355 | else if (name[0] != '0' && ISDIGIT (name[1]) && name[2] == '\0') |
252b5132 RH |
1356 | { |
1357 | num = (name[0] - '0') * 10 + name[1] - '0'; | |
1358 | if (num >= 32) | |
1359 | break; | |
1360 | } | |
1361 | else | |
1362 | break; | |
1363 | ||
6480b79a | 1364 | if (!alpha_noat_on && (num + is_float) == AXP_REG_AT) |
32ff5c2e | 1365 | as_warn (_("Used $at without \".set noat\"")); |
252b5132 RH |
1366 | return alpha_register_table[num + is_float]; |
1367 | ||
1368 | case 'a': | |
1369 | if (name[1] == 't' && name[2] == '\0') | |
1370 | { | |
1371 | if (!alpha_noat_on) | |
32ff5c2e | 1372 | as_warn (_("Used $at without \".set noat\"")); |
252b5132 RH |
1373 | return alpha_register_table[AXP_REG_AT]; |
1374 | } | |
1375 | break; | |
1376 | ||
1377 | case 'g': | |
1378 | if (name[1] == 'p' && name[2] == '\0') | |
1379 | return alpha_register_table[alpha_gp_register]; | |
1380 | break; | |
1381 | ||
1382 | case 's': | |
1383 | if (name[1] == 'p' && name[2] == '\0') | |
1384 | return alpha_register_table[AXP_REG_SP]; | |
1385 | break; | |
1386 | } | |
1387 | } | |
1388 | return NULL; | |
1389 | } | |
1390 | ||
1391 | #ifdef OBJ_ECOFF | |
1392 | /* @@@ Magic ECOFF bits. */ | |
1393 | ||
1394 | void | |
1395 | alpha_frob_ecoff_data () | |
1396 | { | |
1397 | select_gp_value (); | |
1398 | /* $zero and $f31 are read-only */ | |
1399 | alpha_gprmask &= ~1; | |
1400 | alpha_fprmask &= ~1; | |
1401 | } | |
1402 | #endif | |
1403 | ||
1404 | /* Hook to remember a recently defined label so that the auto-align | |
1405 | code can adjust the symbol after we know what alignment will be | |
1406 | required. */ | |
1407 | ||
1408 | void | |
1409 | alpha_define_label (sym) | |
1410 | symbolS *sym; | |
1411 | { | |
1412 | alpha_insn_label = sym; | |
1413 | } | |
1414 | ||
543833df RH |
1415 | /* If we have a BRSGP reloc to a local symbol, adjust it to BRADDR and |
1416 | let it get resolved at assembly time. */ | |
1417 | ||
1418 | void | |
1419 | alpha_validate_fix (f) | |
1420 | fixS *f; | |
1421 | { | |
1422 | #ifdef OBJ_ELF | |
1423 | int offset = 0; | |
1424 | const char *name; | |
1425 | ||
1426 | if (f->fx_r_type != BFD_RELOC_ALPHA_BRSGP) | |
1427 | return; | |
1428 | ||
1429 | if (! S_IS_DEFINED (f->fx_addsy)) | |
1430 | return; | |
1431 | ||
1432 | switch (S_GET_OTHER (f->fx_addsy) & STO_ALPHA_STD_GPLOAD) | |
1433 | { | |
1434 | case STO_ALPHA_NOPV: | |
1435 | break; | |
1436 | case STO_ALPHA_STD_GPLOAD: | |
1437 | offset = 8; | |
1438 | break; | |
1439 | default: | |
1440 | if (S_IS_LOCAL (f->fx_addsy)) | |
1441 | name = "<local>"; | |
1442 | else | |
1443 | name = S_GET_NAME (f->fx_addsy); | |
1444 | as_bad_where (f->fx_file, f->fx_line, | |
1445 | _("!samegp reloc against symbol without .prologue: %s"), | |
1446 | name); | |
1447 | break; | |
1448 | } | |
1449 | ||
1450 | if (! (S_IS_EXTERN (f->fx_addsy) || S_IS_WEAK (f->fx_addsy))) | |
1451 | { | |
1452 | f->fx_r_type = BFD_RELOC_23_PCREL_S2; | |
1453 | f->fx_offset += offset; | |
1454 | } | |
1455 | #endif | |
1456 | } | |
1457 | ||
252b5132 | 1458 | /* Return true if we must always emit a reloc for a type and false if |
b6ff326e | 1459 | there is some hope of resolving it at assembly time. */ |
252b5132 RH |
1460 | |
1461 | int | |
1462 | alpha_force_relocation (f) | |
1463 | fixS *f; | |
1464 | { | |
1465 | if (alpha_flag_relax) | |
1466 | return 1; | |
1467 | ||
1468 | switch (f->fx_r_type) | |
1469 | { | |
1470 | case BFD_RELOC_ALPHA_GPDISP_HI16: | |
1471 | case BFD_RELOC_ALPHA_GPDISP_LO16: | |
1472 | case BFD_RELOC_ALPHA_GPDISP: | |
252b5132 | 1473 | case BFD_RELOC_ALPHA_LITERAL: |
252b5132 | 1474 | case BFD_RELOC_ALPHA_ELF_LITERAL: |
252b5132 | 1475 | case BFD_RELOC_ALPHA_LITUSE: |
19f78583 | 1476 | case BFD_RELOC_GPREL16: |
252b5132 | 1477 | case BFD_RELOC_GPREL32: |
19f78583 RH |
1478 | case BFD_RELOC_ALPHA_GPREL_HI16: |
1479 | case BFD_RELOC_ALPHA_GPREL_LO16: | |
252b5132 RH |
1480 | case BFD_RELOC_ALPHA_LINKAGE: |
1481 | case BFD_RELOC_ALPHA_CODEADDR: | |
543833df | 1482 | case BFD_RELOC_ALPHA_BRSGP: |
b96ed59a PB |
1483 | case BFD_RELOC_VTABLE_INHERIT: |
1484 | case BFD_RELOC_VTABLE_ENTRY: | |
3765b1be RH |
1485 | case BFD_RELOC_ALPHA_TLSGD: |
1486 | case BFD_RELOC_ALPHA_TLSLDM: | |
1487 | case BFD_RELOC_ALPHA_GOTDTPREL16: | |
1488 | case BFD_RELOC_ALPHA_DTPREL_HI16: | |
1489 | case BFD_RELOC_ALPHA_DTPREL_LO16: | |
1490 | case BFD_RELOC_ALPHA_DTPREL16: | |
1491 | case BFD_RELOC_ALPHA_GOTTPREL16: | |
1492 | case BFD_RELOC_ALPHA_TPREL_HI16: | |
1493 | case BFD_RELOC_ALPHA_TPREL_LO16: | |
1494 | case BFD_RELOC_ALPHA_TPREL16: | |
252b5132 RH |
1495 | return 1; |
1496 | ||
1497 | case BFD_RELOC_23_PCREL_S2: | |
1498 | case BFD_RELOC_32: | |
1499 | case BFD_RELOC_64: | |
1500 | case BFD_RELOC_ALPHA_HINT: | |
1501 | return 0; | |
1502 | ||
1503 | default: | |
252b5132 RH |
1504 | return 0; |
1505 | } | |
1506 | } | |
1507 | ||
1508 | /* Return true if we can partially resolve a relocation now. */ | |
1509 | ||
1510 | int | |
1511 | alpha_fix_adjustable (f) | |
1512 | fixS *f; | |
1513 | { | |
1514 | #ifdef OBJ_ELF | |
1515 | /* Prevent all adjustments to global symbols */ | |
1516 | if (S_IS_EXTERN (f->fx_addsy) || S_IS_WEAK (f->fx_addsy)) | |
1517 | return 0; | |
1518 | #endif | |
1519 | ||
1520 | /* Are there any relocation types for which we must generate a reloc | |
1521 | but we can adjust the values contained within it? */ | |
1522 | switch (f->fx_r_type) | |
1523 | { | |
1524 | case BFD_RELOC_ALPHA_GPDISP_HI16: | |
1525 | case BFD_RELOC_ALPHA_GPDISP_LO16: | |
1526 | case BFD_RELOC_ALPHA_GPDISP: | |
543833df | 1527 | case BFD_RELOC_ALPHA_BRSGP: |
252b5132 RH |
1528 | return 0; |
1529 | ||
252b5132 | 1530 | case BFD_RELOC_ALPHA_LITERAL: |
252b5132 | 1531 | case BFD_RELOC_ALPHA_ELF_LITERAL: |
19f78583 | 1532 | case BFD_RELOC_ALPHA_LITUSE: |
252b5132 RH |
1533 | case BFD_RELOC_ALPHA_LINKAGE: |
1534 | case BFD_RELOC_ALPHA_CODEADDR: | |
252b5132 RH |
1535 | return 1; |
1536 | ||
b96ed59a PB |
1537 | case BFD_RELOC_VTABLE_ENTRY: |
1538 | case BFD_RELOC_VTABLE_INHERIT: | |
252b5132 RH |
1539 | return 0; |
1540 | ||
19f78583 | 1541 | case BFD_RELOC_GPREL16: |
252b5132 | 1542 | case BFD_RELOC_GPREL32: |
19f78583 RH |
1543 | case BFD_RELOC_ALPHA_GPREL_HI16: |
1544 | case BFD_RELOC_ALPHA_GPREL_LO16: | |
252b5132 RH |
1545 | case BFD_RELOC_23_PCREL_S2: |
1546 | case BFD_RELOC_32: | |
1547 | case BFD_RELOC_64: | |
1548 | case BFD_RELOC_ALPHA_HINT: | |
1549 | return 1; | |
1550 | ||
3765b1be RH |
1551 | case BFD_RELOC_ALPHA_TLSGD: |
1552 | case BFD_RELOC_ALPHA_TLSLDM: | |
1553 | case BFD_RELOC_ALPHA_GOTDTPREL16: | |
1554 | case BFD_RELOC_ALPHA_DTPREL_HI16: | |
1555 | case BFD_RELOC_ALPHA_DTPREL_LO16: | |
1556 | case BFD_RELOC_ALPHA_DTPREL16: | |
1557 | case BFD_RELOC_ALPHA_GOTTPREL16: | |
1558 | case BFD_RELOC_ALPHA_TPREL_HI16: | |
1559 | case BFD_RELOC_ALPHA_TPREL_LO16: | |
1560 | case BFD_RELOC_ALPHA_TPREL16: | |
1561 | /* ??? No idea why we can't return a reference to .tbss+10, but | |
1562 | we're preventing this in the other assemblers. Follow for now. */ | |
1563 | return 0; | |
1564 | ||
252b5132 | 1565 | default: |
252b5132 RH |
1566 | return 1; |
1567 | } | |
1568 | /*NOTREACHED*/ | |
1569 | } | |
1570 | ||
1571 | /* Generate the BFD reloc to be stuck in the object file from the | |
1572 | fixup used internally in the assembler. */ | |
1573 | ||
1574 | arelent * | |
1575 | tc_gen_reloc (sec, fixp) | |
446a06c9 | 1576 | asection *sec ATTRIBUTE_UNUSED; |
252b5132 RH |
1577 | fixS *fixp; |
1578 | { | |
1579 | arelent *reloc; | |
1580 | ||
1581 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
49309057 ILT |
1582 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
1583 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
252b5132 RH |
1584 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; |
1585 | ||
1586 | /* Make sure none of our internal relocations make it this far. | |
1587 | They'd better have been fully resolved by this point. */ | |
32ff5c2e | 1588 | assert ((int) fixp->fx_r_type > 0); |
252b5132 RH |
1589 | |
1590 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
1591 | if (reloc->howto == NULL) | |
1592 | { | |
1593 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1594 | _("cannot represent `%s' relocation in object file"), | |
1595 | bfd_get_reloc_code_name (fixp->fx_r_type)); | |
1596 | return NULL; | |
1597 | } | |
1598 | ||
1599 | if (!fixp->fx_pcrel != !reloc->howto->pc_relative) | |
1600 | { | |
1601 | as_fatal (_("internal error? cannot generate `%s' relocation"), | |
1602 | bfd_get_reloc_code_name (fixp->fx_r_type)); | |
1603 | } | |
1604 | assert (!fixp->fx_pcrel == !reloc->howto->pc_relative); | |
1605 | ||
1606 | #ifdef OBJ_ECOFF | |
1607 | if (fixp->fx_r_type == BFD_RELOC_ALPHA_LITERAL) | |
1608 | { | |
1609 | /* fake out bfd_perform_relocation. sigh */ | |
1610 | reloc->addend = -alpha_gp_value; | |
1611 | } | |
1612 | else | |
1613 | #endif | |
1614 | { | |
1615 | reloc->addend = fixp->fx_offset; | |
1616 | #ifdef OBJ_ELF | |
1617 | /* | |
1618 | * Ohhh, this is ugly. The problem is that if this is a local global | |
1619 | * symbol, the relocation will entirely be performed at link time, not | |
1620 | * at assembly time. bfd_perform_reloc doesn't know about this sort | |
1621 | * of thing, and as a result we need to fake it out here. | |
1622 | */ | |
f7460f5f | 1623 | if ((S_IS_EXTERN (fixp->fx_addsy) || S_IS_WEAK (fixp->fx_addsy) |
13ae64f3 JJ |
1624 | || (S_GET_SEGMENT (fixp->fx_addsy)->flags & SEC_MERGE) |
1625 | || (S_GET_SEGMENT (fixp->fx_addsy)->flags & SEC_THREAD_LOCAL)) | |
32ff5c2e | 1626 | && !S_IS_COMMON (fixp->fx_addsy)) |
49309057 | 1627 | reloc->addend -= symbol_get_bfdsym (fixp->fx_addsy)->value; |
252b5132 RH |
1628 | #endif |
1629 | } | |
1630 | ||
1631 | return reloc; | |
1632 | } | |
1633 | ||
1634 | /* Parse a register name off of the input_line and return a register | |
1635 | number. Gets md_undefined_symbol above to do the register name | |
1636 | matching for us. | |
1637 | ||
1638 | Only called as a part of processing the ECOFF .frame directive. */ | |
1639 | ||
1640 | int | |
1641 | tc_get_register (frame) | |
446a06c9 | 1642 | int frame ATTRIBUTE_UNUSED; |
252b5132 RH |
1643 | { |
1644 | int framereg = AXP_REG_SP; | |
1645 | ||
1646 | SKIP_WHITESPACE (); | |
1647 | if (*input_line_pointer == '$') | |
1648 | { | |
1649 | char *s = input_line_pointer; | |
1650 | char c = get_symbol_end (); | |
1651 | symbolS *sym = md_undefined_symbol (s); | |
1652 | ||
32ff5c2e | 1653 | *strchr (s, '\0') = c; |
252b5132 RH |
1654 | if (sym && (framereg = S_GET_VALUE (sym)) <= 31) |
1655 | goto found; | |
1656 | } | |
1657 | as_warn (_("frame reg expected, using $%d."), framereg); | |
1658 | ||
1659 | found: | |
1660 | note_gpreg (framereg); | |
1661 | return framereg; | |
1662 | } | |
1663 | ||
1664 | /* This is called before the symbol table is processed. In order to | |
1665 | work with gcc when using mips-tfile, we must keep all local labels. | |
1666 | However, in other cases, we want to discard them. If we were | |
1667 | called with -g, but we didn't see any debugging information, it may | |
1668 | mean that gcc is smuggling debugging information through to | |
1669 | mips-tfile, in which case we must generate all local labels. */ | |
1670 | ||
1671 | #ifdef OBJ_ECOFF | |
1672 | ||
1673 | void | |
1674 | alpha_frob_file_before_adjust () | |
1675 | { | |
1676 | if (alpha_debug != 0 | |
1677 | && ! ecoff_debugging_seen) | |
1678 | flag_keep_locals = 1; | |
1679 | } | |
1680 | ||
1681 | #endif /* OBJ_ECOFF */ | |
1682 | \f | |
19f78583 RH |
1683 | static struct alpha_reloc_tag * |
1684 | get_alpha_reloc_tag (sequence) | |
1685 | long sequence; | |
1686 | { | |
1687 | char buffer[ALPHA_RELOC_DIGITS]; | |
1688 | struct alpha_reloc_tag *info; | |
1689 | ||
1690 | sprintf (buffer, "!%ld", sequence); | |
1691 | ||
1692 | info = (struct alpha_reloc_tag *) hash_find (alpha_literal_hash, buffer); | |
1693 | if (! info) | |
1694 | { | |
1695 | size_t len = strlen (buffer); | |
1696 | const char *errmsg; | |
1697 | ||
1698 | info = (struct alpha_reloc_tag *) | |
1699 | xcalloc (sizeof (struct alpha_reloc_tag) + len, 1); | |
1700 | ||
1701 | info->segment = now_seg; | |
1702 | info->sequence = sequence; | |
1703 | strcpy (info->string, buffer); | |
1704 | errmsg = hash_insert (alpha_literal_hash, info->string, (PTR) info); | |
1705 | if (errmsg) | |
1706 | as_fatal (errmsg); | |
1707 | } | |
1708 | ||
1709 | return info; | |
1710 | } | |
43b4c25e | 1711 | |
66498417 KH |
1712 | /* Before the relocations are written, reorder them, so that user |
1713 | supplied !lituse relocations follow the appropriate !literal | |
19f78583 | 1714 | relocations, and similarly for !gpdisp relocations. */ |
43b4c25e MM |
1715 | |
1716 | void | |
1717 | alpha_adjust_symtab () | |
1718 | { | |
1719 | if (alpha_literal_hash) | |
19f78583 | 1720 | bfd_map_over_sections (stdoutput, alpha_adjust_symtab_relocs, NULL); |
43b4c25e | 1721 | } |
43b4c25e MM |
1722 | |
1723 | static void | |
1724 | alpha_adjust_symtab_relocs (abfd, sec, ptr) | |
4dc7ead9 | 1725 | bfd *abfd ATTRIBUTE_UNUSED; |
43b4c25e | 1726 | asection *sec; |
4dc7ead9 | 1727 | PTR ptr ATTRIBUTE_UNUSED; |
43b4c25e MM |
1728 | { |
1729 | segment_info_type *seginfo = seg_info (sec); | |
1730 | fixS **prevP; | |
1731 | fixS *fixp; | |
1732 | fixS *next; | |
19f78583 | 1733 | fixS *slave; |
43b4c25e | 1734 | |
66498417 KH |
1735 | /* If seginfo is NULL, we did not create this section; don't do |
1736 | anything with it. By using a pointer to a pointer, we can update | |
1737 | the links in place. */ | |
43b4c25e MM |
1738 | if (seginfo == NULL) |
1739 | return; | |
1740 | ||
1741 | /* If there are no relocations, skip the section. */ | |
1742 | if (! seginfo->fix_root) | |
1743 | return; | |
1744 | ||
19f78583 RH |
1745 | /* First rebuild the fixup chain without the expicit lituse and |
1746 | gpdisp_lo16 relocs. */ | |
1747 | prevP = &seginfo->fix_root; | |
43b4c25e MM |
1748 | for (fixp = seginfo->fix_root; fixp; fixp = next) |
1749 | { | |
1750 | next = fixp->fx_next; | |
32ff5c2e | 1751 | fixp->fx_next = (fixS *) 0; |
43b4c25e MM |
1752 | |
1753 | switch (fixp->fx_r_type) | |
1754 | { | |
19f78583 | 1755 | case BFD_RELOC_ALPHA_LITUSE: |
19f78583 RH |
1756 | if (fixp->tc_fix_data.info->n_master == 0) |
1757 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1758 | _("No !literal!%ld was found"), | |
1759 | fixp->tc_fix_data.info->sequence); | |
9e756d64 | 1760 | if (fixp->fx_offset == LITUSE_ALPHA_TLSGD) |
3765b1be RH |
1761 | { |
1762 | if (! fixp->tc_fix_data.info->saw_tlsgd) | |
1763 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1764 | _("No !tlsgd!%ld was found"), | |
1765 | fixp->tc_fix_data.info->sequence); | |
1766 | } | |
9e756d64 | 1767 | else if (fixp->fx_offset == LITUSE_ALPHA_TLSLDM) |
3765b1be RH |
1768 | { |
1769 | if (! fixp->tc_fix_data.info->saw_tlsldm) | |
1770 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1771 | _("No !tlsldm!%ld was found"), | |
1772 | fixp->tc_fix_data.info->sequence); | |
1773 | } | |
43b4c25e MM |
1774 | break; |
1775 | ||
19f78583 | 1776 | case BFD_RELOC_ALPHA_GPDISP_LO16: |
19f78583 | 1777 | if (fixp->tc_fix_data.info->n_master == 0) |
43b4c25e | 1778 | as_bad_where (fixp->fx_file, fixp->fx_line, |
19f78583 | 1779 | _("No ldah !gpdisp!%ld was found"), |
43b4c25e | 1780 | fixp->tc_fix_data.info->sequence); |
19f78583 RH |
1781 | break; |
1782 | ||
3765b1be | 1783 | case BFD_RELOC_ALPHA_ELF_LITERAL: |
20e130e9 RH |
1784 | if (fixp->tc_fix_data.info |
1785 | && (fixp->tc_fix_data.info->saw_tlsgd | |
1786 | || fixp->tc_fix_data.info->saw_tlsldm)) | |
3765b1be RH |
1787 | break; |
1788 | /* FALLTHRU */ | |
1789 | ||
19f78583 RH |
1790 | default: |
1791 | *prevP = fixp; | |
1792 | prevP = &fixp->fx_next; | |
43b4c25e MM |
1793 | break; |
1794 | } | |
1795 | } | |
1796 | ||
3765b1be RH |
1797 | /* Go back and re-chain dependent relocations. They are currently |
1798 | linked through the next_reloc field in reverse order, so as we | |
1799 | go through the next_reloc chain, we effectively reverse the chain | |
1800 | once again. | |
19f78583 RH |
1801 | |
1802 | Except if there is more than one !literal for a given sequence | |
1803 | number. In that case, the programmer and/or compiler is not sure | |
1804 | how control flows from literal to lituse, and we can't be sure to | |
1805 | get the relaxation correct. | |
1806 | ||
1807 | ??? Well, actually we could, if there are enough lituses such that | |
1808 | we can make each literal have at least one of each lituse type | |
1809 | present. Not implemented. | |
1810 | ||
1811 | Also suppress the optimization if the !literals/!lituses are spread | |
1812 | in different segments. This can happen with "intersting" uses of | |
1813 | inline assembly; examples are present in the Linux kernel semaphores. */ | |
1814 | ||
1815 | for (fixp = seginfo->fix_root; fixp; fixp = next) | |
43b4c25e | 1816 | { |
19f78583 RH |
1817 | next = fixp->fx_next; |
1818 | switch (fixp->fx_r_type) | |
43b4c25e | 1819 | { |
3765b1be RH |
1820 | case BFD_RELOC_ALPHA_TLSGD: |
1821 | case BFD_RELOC_ALPHA_TLSLDM: | |
1822 | if (!fixp->tc_fix_data.info) | |
1823 | break; | |
1824 | if (fixp->tc_fix_data.info->n_master == 0) | |
1825 | break; | |
1826 | else if (fixp->tc_fix_data.info->n_master > 1) | |
1827 | { | |
1828 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1829 | _("too many !literal!%ld for %s"), | |
1830 | fixp->tc_fix_data.info->sequence, | |
1831 | (fixp->fx_r_type == BFD_RELOC_ALPHA_TLSGD | |
1832 | ? "!tlsgd" : "!tlsldm")); | |
1833 | break; | |
1834 | } | |
1835 | ||
1836 | fixp->tc_fix_data.info->master->fx_next = fixp->fx_next; | |
1837 | fixp->fx_next = fixp->tc_fix_data.info->master; | |
1838 | fixp = fixp->fx_next; | |
1839 | /* FALLTHRU */ | |
1840 | ||
19f78583 | 1841 | case BFD_RELOC_ALPHA_ELF_LITERAL: |
20e130e9 RH |
1842 | if (fixp->tc_fix_data.info |
1843 | && fixp->tc_fix_data.info->n_master == 1 | |
19f78583 | 1844 | && ! fixp->tc_fix_data.info->multi_section_p) |
43b4c25e | 1845 | { |
19f78583 RH |
1846 | for (slave = fixp->tc_fix_data.info->slaves; |
1847 | slave != (fixS *) 0; | |
1848 | slave = slave->tc_fix_data.next_reloc) | |
43b4c25e | 1849 | { |
19f78583 RH |
1850 | slave->fx_next = fixp->fx_next; |
1851 | fixp->fx_next = slave; | |
43b4c25e | 1852 | } |
19f78583 RH |
1853 | } |
1854 | break; | |
43b4c25e | 1855 | |
19f78583 RH |
1856 | case BFD_RELOC_ALPHA_GPDISP_HI16: |
1857 | if (fixp->tc_fix_data.info->n_slaves == 0) | |
1858 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1859 | _("No lda !gpdisp!%ld was found"), | |
1860 | fixp->tc_fix_data.info->sequence); | |
1861 | else | |
1862 | { | |
1863 | slave = fixp->tc_fix_data.info->slaves; | |
1864 | slave->fx_next = next; | |
1865 | fixp->fx_next = slave; | |
43b4c25e | 1866 | } |
19f78583 RH |
1867 | break; |
1868 | ||
1869 | default: | |
1870 | break; | |
43b4c25e MM |
1871 | } |
1872 | } | |
43b4c25e | 1873 | } |
43b4c25e MM |
1874 | \f |
1875 | #ifdef DEBUG_ALPHA | |
1876 | static void | |
1877 | debug_exp (tok, ntok) | |
1878 | expressionS tok[]; | |
1879 | int ntok; | |
1880 | { | |
1881 | int i; | |
1882 | ||
1883 | fprintf (stderr, "debug_exp: %d tokens", ntok); | |
1884 | for (i = 0; i < ntok; i++) | |
1885 | { | |
1886 | expressionS *t = &tok[i]; | |
1887 | const char *name; | |
1888 | switch (t->X_op) | |
1889 | { | |
1890 | default: name = "unknown"; break; | |
1891 | case O_illegal: name = "O_illegal"; break; | |
1892 | case O_absent: name = "O_absent"; break; | |
1893 | case O_constant: name = "O_constant"; break; | |
1894 | case O_symbol: name = "O_symbol"; break; | |
1895 | case O_symbol_rva: name = "O_symbol_rva"; break; | |
1896 | case O_register: name = "O_register"; break; | |
1897 | case O_big: name = "O_big"; break; | |
1898 | case O_uminus: name = "O_uminus"; break; | |
1899 | case O_bit_not: name = "O_bit_not"; break; | |
1900 | case O_logical_not: name = "O_logical_not"; break; | |
1901 | case O_multiply: name = "O_multiply"; break; | |
1902 | case O_divide: name = "O_divide"; break; | |
1903 | case O_modulus: name = "O_modulus"; break; | |
1904 | case O_left_shift: name = "O_left_shift"; break; | |
1905 | case O_right_shift: name = "O_right_shift"; break; | |
1906 | case O_bit_inclusive_or: name = "O_bit_inclusive_or"; break; | |
1907 | case O_bit_or_not: name = "O_bit_or_not"; break; | |
1908 | case O_bit_exclusive_or: name = "O_bit_exclusive_or"; break; | |
1909 | case O_bit_and: name = "O_bit_and"; break; | |
1910 | case O_add: name = "O_add"; break; | |
1911 | case O_subtract: name = "O_subtract"; break; | |
1912 | case O_eq: name = "O_eq"; break; | |
1913 | case O_ne: name = "O_ne"; break; | |
1914 | case O_lt: name = "O_lt"; break; | |
1915 | case O_le: name = "O_le"; break; | |
1916 | case O_ge: name = "O_ge"; break; | |
1917 | case O_gt: name = "O_gt"; break; | |
1918 | case O_logical_and: name = "O_logical_and"; break; | |
1919 | case O_logical_or: name = "O_logical_or"; break; | |
1920 | case O_index: name = "O_index"; break; | |
1921 | case O_pregister: name = "O_pregister"; break; | |
1922 | case O_cpregister: name = "O_cpregister"; break; | |
1923 | case O_literal: name = "O_literal"; break; | |
543833df | 1924 | case O_lituse_addr: name = "O_lituse_addr"; break; |
43b4c25e MM |
1925 | case O_lituse_base: name = "O_lituse_base"; break; |
1926 | case O_lituse_bytoff: name = "O_lituse_bytoff"; break; | |
1927 | case O_lituse_jsr: name = "O_lituse_jsr"; break; | |
3765b1be RH |
1928 | case O_lituse_tlsgd: name = "O_lituse_tlsgd"; break; |
1929 | case O_lituse_tlsldm: name = "O_lituse_tlsldm"; break; | |
43b4c25e MM |
1930 | case O_gpdisp: name = "O_gpdisp"; break; |
1931 | case O_gprelhigh: name = "O_gprelhigh"; break; | |
1932 | case O_gprellow: name = "O_gprellow"; break; | |
19f78583 | 1933 | case O_gprel: name = "O_gprel"; break; |
543833df | 1934 | case O_samegp: name = "O_samegp"; break; |
3765b1be RH |
1935 | case O_tlsgd: name = "O_tlsgd"; break; |
1936 | case O_tlsldm: name = "O_tlsldm"; break; | |
1937 | case O_gotdtprel: name = "O_gotdtprel"; break; | |
1938 | case O_dtprelhi: name = "O_dtprelhi"; break; | |
1939 | case O_dtprello: name = "O_dtprello"; break; | |
1940 | case O_dtprel: name = "O_dtprel"; break; | |
1941 | case O_gottprel: name = "O_gottprel"; break; | |
1942 | case O_tprelhi: name = "O_tprelhi"; break; | |
1943 | case O_tprello: name = "O_tprello"; break; | |
1944 | case O_tprel: name = "O_tprel"; break; | |
43b4c25e MM |
1945 | } |
1946 | ||
1947 | fprintf (stderr, ", %s(%s, %s, %d)", name, | |
1948 | (t->X_add_symbol) ? S_GET_NAME (t->X_add_symbol) : "--", | |
1949 | (t->X_op_symbol) ? S_GET_NAME (t->X_op_symbol) : "--", | |
32ff5c2e | 1950 | (int) t->X_add_number); |
43b4c25e MM |
1951 | } |
1952 | fprintf (stderr, "\n"); | |
1953 | fflush (stderr); | |
1954 | } | |
1955 | #endif | |
1956 | ||
252b5132 RH |
1957 | /* Parse the arguments to an opcode. */ |
1958 | ||
1959 | static int | |
1960 | tokenize_arguments (str, tok, ntok) | |
1961 | char *str; | |
1962 | expressionS tok[]; | |
1963 | int ntok; | |
1964 | { | |
1965 | expressionS *end_tok = tok + ntok; | |
1966 | char *old_input_line_pointer; | |
1967 | int saw_comma = 0, saw_arg = 0; | |
43b4c25e MM |
1968 | #ifdef DEBUG_ALPHA |
1969 | expressionS *orig_tok = tok; | |
1970 | #endif | |
43b4c25e MM |
1971 | char *p; |
1972 | const struct alpha_reloc_op_tag *r; | |
1973 | int c, i; | |
1974 | size_t len; | |
1975 | int reloc_found_p = 0; | |
252b5132 RH |
1976 | |
1977 | memset (tok, 0, sizeof (*tok) * ntok); | |
1978 | ||
1979 | /* Save and restore input_line_pointer around this function */ | |
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) | |
2002 | { /* only support one relocation op per insn */ | |
2003 | as_bad (_("More than one relocation op per insn")); | |
2004 | goto err_report; | |
2005 | } | |
2006 | ||
2007 | if (!saw_arg) | |
2008 | goto err; | |
2009 | ||
19f78583 | 2010 | ++input_line_pointer; |
cc8a6dd0 | 2011 | SKIP_WHITESPACE (); |
19f78583 RH |
2012 | p = input_line_pointer; |
2013 | c = get_symbol_end (); | |
43b4c25e MM |
2014 | |
2015 | /* Parse !relocation_type */ | |
19f78583 | 2016 | len = input_line_pointer - p; |
43b4c25e MM |
2017 | if (len == 0) |
2018 | { | |
2019 | as_bad (_("No relocation operand")); | |
2020 | goto err_report; | |
2021 | } | |
2022 | ||
43b4c25e | 2023 | r = &alpha_reloc_op[0]; |
66498417 | 2024 | for (i = alpha_num_reloc_op - 1; i >= 0; i--, r++) |
19f78583 RH |
2025 | if (len == r->length && memcmp (p, r->name, len) == 0) |
2026 | break; | |
43b4c25e MM |
2027 | if (i < 0) |
2028 | { | |
19f78583 | 2029 | as_bad (_("Unknown relocation operand: !%s"), p); |
43b4c25e MM |
2030 | goto err_report; |
2031 | } | |
2032 | ||
19f78583 | 2033 | *input_line_pointer = c; |
cc8a6dd0 | 2034 | SKIP_WHITESPACE (); |
19f78583 RH |
2035 | if (*input_line_pointer != '!') |
2036 | { | |
ec8fcf4a | 2037 | if (r->require_seq) |
19f78583 | 2038 | { |
ec8fcf4a | 2039 | as_bad (_("no sequence number after !%s"), p); |
19f78583 RH |
2040 | goto err_report; |
2041 | } | |
2042 | ||
19f78583 | 2043 | tok->X_add_number = 0; |
19f78583 | 2044 | } |
ec8fcf4a RH |
2045 | else |
2046 | { | |
2047 | if (! r->allow_seq) | |
2048 | { | |
2049 | as_bad (_("!%s does not use a sequence number"), p); | |
2050 | goto err_report; | |
2051 | } | |
19f78583 | 2052 | |
ec8fcf4a | 2053 | input_line_pointer++; |
43b4c25e | 2054 | |
ec8fcf4a RH |
2055 | /* Parse !sequence_number */ |
2056 | expression (tok); | |
2057 | if (tok->X_op != O_constant || tok->X_add_number <= 0) | |
2058 | { | |
2059 | as_bad (_("Bad sequence number: !%s!%s"), | |
2060 | r->name, input_line_pointer); | |
2061 | goto err_report; | |
2062 | } | |
43b4c25e MM |
2063 | } |
2064 | ||
2065 | tok->X_op = r->op; | |
2066 | reloc_found_p = 1; | |
2067 | ++tok; | |
2068 | break; | |
19f78583 | 2069 | #endif /* RELOC_OP_P */ |
43b4c25e | 2070 | |
252b5132 RH |
2071 | case ',': |
2072 | ++input_line_pointer; | |
2073 | if (saw_comma || !saw_arg) | |
2074 | goto err; | |
2075 | saw_comma = 1; | |
2076 | break; | |
2077 | ||
2078 | case '(': | |
2079 | { | |
2080 | char *hold = input_line_pointer++; | |
2081 | ||
1dab94dd | 2082 | /* First try for parenthesized register ... */ |
252b5132 RH |
2083 | expression (tok); |
2084 | if (*input_line_pointer == ')' && tok->X_op == O_register) | |
2085 | { | |
2086 | tok->X_op = (saw_comma ? O_cpregister : O_pregister); | |
2087 | saw_comma = 0; | |
2088 | saw_arg = 1; | |
2089 | ++input_line_pointer; | |
2090 | ++tok; | |
2091 | break; | |
2092 | } | |
2093 | ||
2094 | /* ... then fall through to plain expression */ | |
2095 | input_line_pointer = hold; | |
2096 | } | |
2097 | ||
2098 | default: | |
2099 | if (saw_arg && !saw_comma) | |
2100 | goto err; | |
43b4c25e | 2101 | |
252b5132 RH |
2102 | expression (tok); |
2103 | if (tok->X_op == O_illegal || tok->X_op == O_absent) | |
2104 | goto err; | |
2105 | ||
2106 | saw_comma = 0; | |
2107 | saw_arg = 1; | |
2108 | ++tok; | |
2109 | break; | |
2110 | } | |
2111 | } | |
2112 | ||
2113 | fini: | |
2114 | if (saw_comma) | |
2115 | goto err; | |
2116 | input_line_pointer = old_input_line_pointer; | |
43b4c25e MM |
2117 | |
2118 | #ifdef DEBUG_ALPHA | |
2119 | debug_exp (orig_tok, ntok - (end_tok - tok)); | |
2120 | #endif | |
19f78583 RH |
2121 | #ifdef RELOC_OP_P |
2122 | is_end_of_line[(unsigned char) '!'] = 0; | |
2123 | #endif | |
43b4c25e | 2124 | |
252b5132 RH |
2125 | return ntok - (end_tok - tok); |
2126 | ||
2127 | err: | |
19f78583 RH |
2128 | #ifdef RELOC_OP_P |
2129 | is_end_of_line[(unsigned char) '!'] = 0; | |
2130 | #endif | |
252b5132 | 2131 | input_line_pointer = old_input_line_pointer; |
43b4c25e MM |
2132 | return TOKENIZE_ERROR; |
2133 | ||
43b4c25e | 2134 | err_report: |
19f78583 RH |
2135 | #ifdef RELOC_OP_P |
2136 | is_end_of_line[(unsigned char) '!'] = 0; | |
2137 | #endif | |
43b4c25e MM |
2138 | input_line_pointer = old_input_line_pointer; |
2139 | return TOKENIZE_ERROR_REPORT; | |
252b5132 RH |
2140 | } |
2141 | ||
2142 | /* Search forward through all variants of an opcode looking for a | |
2143 | syntax match. */ | |
2144 | ||
2145 | static const struct alpha_opcode * | |
32ff5c2e | 2146 | find_opcode_match (first_opcode, tok, pntok, pcpumatch) |
252b5132 RH |
2147 | const struct alpha_opcode *first_opcode; |
2148 | const expressionS *tok; | |
2149 | int *pntok; | |
2150 | int *pcpumatch; | |
2151 | { | |
2152 | const struct alpha_opcode *opcode = first_opcode; | |
2153 | int ntok = *pntok; | |
2154 | int got_cpu_match = 0; | |
2155 | ||
2156 | do | |
2157 | { | |
2158 | const unsigned char *opidx; | |
2159 | int tokidx = 0; | |
2160 | ||
2161 | /* Don't match opcodes that don't exist on this architecture */ | |
2162 | if (!(opcode->flags & alpha_target)) | |
2163 | goto match_failed; | |
2164 | ||
2165 | got_cpu_match = 1; | |
2166 | ||
2167 | for (opidx = opcode->operands; *opidx; ++opidx) | |
2168 | { | |
2169 | const struct alpha_operand *operand = &alpha_operands[*opidx]; | |
2170 | ||
2171 | /* only take input from real operands */ | |
2172 | if (operand->flags & AXP_OPERAND_FAKE) | |
2173 | continue; | |
2174 | ||
2175 | /* when we expect input, make sure we have it */ | |
2176 | if (tokidx >= ntok) | |
2177 | { | |
2178 | if ((operand->flags & AXP_OPERAND_OPTIONAL_MASK) == 0) | |
2179 | goto match_failed; | |
2180 | continue; | |
2181 | } | |
2182 | ||
2183 | /* match operand type with expression type */ | |
2184 | switch (operand->flags & AXP_OPERAND_TYPECHECK_MASK) | |
2185 | { | |
2186 | case AXP_OPERAND_IR: | |
2187 | if (tok[tokidx].X_op != O_register | |
32ff5c2e | 2188 | || !is_ir_num (tok[tokidx].X_add_number)) |
252b5132 RH |
2189 | goto match_failed; |
2190 | break; | |
2191 | case AXP_OPERAND_FPR: | |
2192 | if (tok[tokidx].X_op != O_register | |
32ff5c2e | 2193 | || !is_fpr_num (tok[tokidx].X_add_number)) |
252b5132 RH |
2194 | goto match_failed; |
2195 | break; | |
66498417 | 2196 | case AXP_OPERAND_IR | AXP_OPERAND_PARENS: |
252b5132 | 2197 | if (tok[tokidx].X_op != O_pregister |
32ff5c2e | 2198 | || !is_ir_num (tok[tokidx].X_add_number)) |
252b5132 RH |
2199 | goto match_failed; |
2200 | break; | |
66498417 | 2201 | case AXP_OPERAND_IR | AXP_OPERAND_PARENS | AXP_OPERAND_COMMA: |
252b5132 | 2202 | if (tok[tokidx].X_op != O_cpregister |
32ff5c2e | 2203 | || !is_ir_num (tok[tokidx].X_add_number)) |
252b5132 RH |
2204 | goto match_failed; |
2205 | break; | |
2206 | ||
2207 | case AXP_OPERAND_RELATIVE: | |
2208 | case AXP_OPERAND_SIGNED: | |
2209 | case AXP_OPERAND_UNSIGNED: | |
2210 | switch (tok[tokidx].X_op) | |
2211 | { | |
2212 | case O_illegal: | |
2213 | case O_absent: | |
2214 | case O_register: | |
2215 | case O_pregister: | |
2216 | case O_cpregister: | |
2217 | goto match_failed; | |
2218 | ||
2219 | default: | |
2220 | break; | |
2221 | } | |
2222 | break; | |
2223 | ||
2224 | default: | |
2225 | /* everything else should have been fake */ | |
bc805888 | 2226 | abort (); |
252b5132 RH |
2227 | } |
2228 | ++tokidx; | |
2229 | } | |
2230 | ||
2231 | /* possible match -- did we use all of our input? */ | |
2232 | if (tokidx == ntok) | |
2233 | { | |
2234 | *pntok = ntok; | |
2235 | return opcode; | |
2236 | } | |
2237 | ||
2238 | match_failed:; | |
2239 | } | |
66498417 | 2240 | while (++opcode - alpha_opcodes < alpha_num_opcodes |
32ff5c2e | 2241 | && !strcmp (opcode->name, first_opcode->name)); |
252b5132 RH |
2242 | |
2243 | if (*pcpumatch) | |
1aad8cf8 | 2244 | *pcpumatch = got_cpu_match; |
252b5132 RH |
2245 | |
2246 | return NULL; | |
2247 | } | |
2248 | ||
2249 | /* Search forward through all variants of a macro looking for a syntax | |
2250 | match. */ | |
2251 | ||
2252 | static const struct alpha_macro * | |
32ff5c2e | 2253 | find_macro_match (first_macro, tok, pntok) |
252b5132 RH |
2254 | const struct alpha_macro *first_macro; |
2255 | const expressionS *tok; | |
2256 | int *pntok; | |
2257 | { | |
2258 | const struct alpha_macro *macro = first_macro; | |
2259 | int ntok = *pntok; | |
2260 | ||
2261 | do | |
2262 | { | |
2263 | const enum alpha_macro_arg *arg = macro->argsets; | |
2264 | int tokidx = 0; | |
2265 | ||
2266 | while (*arg) | |
2267 | { | |
2268 | switch (*arg) | |
2269 | { | |
2270 | case MACRO_EOA: | |
2271 | if (tokidx == ntok) | |
2272 | return macro; | |
2273 | else | |
2274 | tokidx = 0; | |
2275 | break; | |
2276 | ||
43b4c25e | 2277 | /* index register */ |
252b5132 RH |
2278 | case MACRO_IR: |
2279 | if (tokidx >= ntok || tok[tokidx].X_op != O_register | |
32ff5c2e | 2280 | || !is_ir_num (tok[tokidx].X_add_number)) |
252b5132 RH |
2281 | goto match_failed; |
2282 | ++tokidx; | |
2283 | break; | |
43b4c25e MM |
2284 | |
2285 | /* parenthesized index register */ | |
252b5132 RH |
2286 | case MACRO_PIR: |
2287 | if (tokidx >= ntok || tok[tokidx].X_op != O_pregister | |
32ff5c2e | 2288 | || !is_ir_num (tok[tokidx].X_add_number)) |
252b5132 RH |
2289 | goto match_failed; |
2290 | ++tokidx; | |
2291 | break; | |
43b4c25e MM |
2292 | |
2293 | /* optional parenthesized index register */ | |
2294 | case MACRO_OPIR: | |
2295 | if (tokidx < ntok && tok[tokidx].X_op == O_pregister | |
32ff5c2e | 2296 | && is_ir_num (tok[tokidx].X_add_number)) |
43b4c25e MM |
2297 | ++tokidx; |
2298 | break; | |
2299 | ||
2300 | /* leading comma with a parenthesized index register */ | |
252b5132 RH |
2301 | case MACRO_CPIR: |
2302 | if (tokidx >= ntok || tok[tokidx].X_op != O_cpregister | |
32ff5c2e | 2303 | || !is_ir_num (tok[tokidx].X_add_number)) |
252b5132 RH |
2304 | goto match_failed; |
2305 | ++tokidx; | |
2306 | break; | |
43b4c25e MM |
2307 | |
2308 | /* floating point register */ | |
252b5132 RH |
2309 | case MACRO_FPR: |
2310 | if (tokidx >= ntok || tok[tokidx].X_op != O_register | |
32ff5c2e | 2311 | || !is_fpr_num (tok[tokidx].X_add_number)) |
252b5132 RH |
2312 | goto match_failed; |
2313 | ++tokidx; | |
2314 | break; | |
2315 | ||
43b4c25e | 2316 | /* normal expression */ |
252b5132 RH |
2317 | case MACRO_EXP: |
2318 | if (tokidx >= ntok) | |
2319 | goto match_failed; | |
2320 | switch (tok[tokidx].X_op) | |
2321 | { | |
2322 | case O_illegal: | |
2323 | case O_absent: | |
2324 | case O_register: | |
2325 | case O_pregister: | |
2326 | case O_cpregister: | |
43b4c25e MM |
2327 | case O_literal: |
2328 | case O_lituse_base: | |
2329 | case O_lituse_bytoff: | |
2330 | case O_lituse_jsr: | |
2331 | case O_gpdisp: | |
2332 | case O_gprelhigh: | |
2333 | case O_gprellow: | |
19f78583 | 2334 | case O_gprel: |
543833df | 2335 | case O_samegp: |
252b5132 RH |
2336 | goto match_failed; |
2337 | ||
2338 | default: | |
2339 | break; | |
2340 | } | |
2341 | ++tokidx; | |
2342 | break; | |
2343 | ||
2344 | match_failed: | |
2345 | while (*arg != MACRO_EOA) | |
2346 | ++arg; | |
2347 | tokidx = 0; | |
2348 | break; | |
2349 | } | |
2350 | ++arg; | |
2351 | } | |
2352 | } | |
66498417 | 2353 | while (++macro - alpha_macros < alpha_num_macros |
32ff5c2e | 2354 | && !strcmp (macro->name, first_macro->name)); |
252b5132 RH |
2355 | |
2356 | return NULL; | |
2357 | } | |
2358 | ||
2359 | /* Insert an operand value into an instruction. */ | |
2360 | ||
2361 | static unsigned | |
32ff5c2e | 2362 | insert_operand (insn, operand, val, file, line) |
252b5132 RH |
2363 | unsigned insn; |
2364 | const struct alpha_operand *operand; | |
2365 | offsetT val; | |
2366 | char *file; | |
2367 | unsigned line; | |
2368 | { | |
2369 | if (operand->bits != 32 && !(operand->flags & AXP_OPERAND_NOOVERFLOW)) | |
2370 | { | |
2371 | offsetT min, max; | |
2372 | ||
2373 | if (operand->flags & AXP_OPERAND_SIGNED) | |
2374 | { | |
2375 | max = (1 << (operand->bits - 1)) - 1; | |
2376 | min = -(1 << (operand->bits - 1)); | |
2377 | } | |
2378 | else | |
2379 | { | |
2380 | max = (1 << operand->bits) - 1; | |
2381 | min = 0; | |
2382 | } | |
2383 | ||
2384 | if (val < min || val > max) | |
2385 | { | |
2386 | const char *err = | |
2387 | _("operand out of range (%s not between %d and %d)"); | |
2388 | char buf[sizeof (val) * 3 + 2]; | |
2389 | ||
32ff5c2e | 2390 | sprint_value (buf, val); |
252b5132 | 2391 | if (file) |
32ff5c2e | 2392 | as_warn_where (file, line, err, buf, min, max); |
252b5132 | 2393 | else |
32ff5c2e | 2394 | as_warn (err, buf, min, max); |
252b5132 RH |
2395 | } |
2396 | } | |
2397 | ||
2398 | if (operand->insert) | |
2399 | { | |
2400 | const char *errmsg = NULL; | |
2401 | ||
2402 | insn = (*operand->insert) (insn, val, &errmsg); | |
2403 | if (errmsg) | |
2404 | as_warn (errmsg); | |
2405 | } | |
2406 | else | |
2407 | insn |= ((val & ((1 << operand->bits) - 1)) << operand->shift); | |
2408 | ||
2409 | return insn; | |
2410 | } | |
2411 | ||
2412 | /* | |
2413 | * Turn an opcode description and a set of arguments into | |
2414 | * an instruction and a fixup. | |
2415 | */ | |
2416 | ||
2417 | static void | |
19f78583 | 2418 | assemble_insn (opcode, tok, ntok, insn, reloc) |
252b5132 RH |
2419 | const struct alpha_opcode *opcode; |
2420 | const expressionS *tok; | |
2421 | int ntok; | |
2422 | struct alpha_insn *insn; | |
19f78583 | 2423 | bfd_reloc_code_real_type reloc; |
252b5132 | 2424 | { |
19f78583 RH |
2425 | const struct alpha_operand *reloc_operand = NULL; |
2426 | const expressionS *reloc_exp = NULL; | |
252b5132 RH |
2427 | const unsigned char *argidx; |
2428 | unsigned image; | |
2429 | int tokidx = 0; | |
2430 | ||
2431 | memset (insn, 0, sizeof (*insn)); | |
2432 | image = opcode->opcode; | |
2433 | ||
2434 | for (argidx = opcode->operands; *argidx; ++argidx) | |
2435 | { | |
2436 | const struct alpha_operand *operand = &alpha_operands[*argidx]; | |
32ff5c2e | 2437 | const expressionS *t = (const expressionS *) 0; |
252b5132 RH |
2438 | |
2439 | if (operand->flags & AXP_OPERAND_FAKE) | |
2440 | { | |
2441 | /* fake operands take no value and generate no fixup */ | |
32ff5c2e | 2442 | image = insert_operand (image, operand, 0, NULL, 0); |
252b5132 RH |
2443 | continue; |
2444 | } | |
2445 | ||
2446 | if (tokidx >= ntok) | |
2447 | { | |
2448 | switch (operand->flags & AXP_OPERAND_OPTIONAL_MASK) | |
2449 | { | |
2450 | case AXP_OPERAND_DEFAULT_FIRST: | |
2451 | t = &tok[0]; | |
2452 | break; | |
2453 | case AXP_OPERAND_DEFAULT_SECOND: | |
2454 | t = &tok[1]; | |
2455 | break; | |
2456 | case AXP_OPERAND_DEFAULT_ZERO: | |
2457 | { | |
446a06c9 | 2458 | static expressionS zero_exp; |
252b5132 | 2459 | t = &zero_exp; |
446a06c9 MM |
2460 | zero_exp.X_op = O_constant; |
2461 | zero_exp.X_unsigned = 1; | |
252b5132 RH |
2462 | } |
2463 | break; | |
2464 | default: | |
bc805888 | 2465 | abort (); |
252b5132 RH |
2466 | } |
2467 | } | |
2468 | else | |
2469 | t = &tok[tokidx++]; | |
2470 | ||
2471 | switch (t->X_op) | |
2472 | { | |
2473 | case O_register: | |
2474 | case O_pregister: | |
2475 | case O_cpregister: | |
32ff5c2e KH |
2476 | image = insert_operand (image, operand, regno (t->X_add_number), |
2477 | NULL, 0); | |
252b5132 RH |
2478 | break; |
2479 | ||
2480 | case O_constant: | |
32ff5c2e | 2481 | image = insert_operand (image, operand, t->X_add_number, NULL, 0); |
19f78583 RH |
2482 | assert (reloc_operand == NULL); |
2483 | reloc_operand = operand; | |
2484 | reloc_exp = t; | |
252b5132 RH |
2485 | break; |
2486 | ||
2487 | default: | |
19f78583 RH |
2488 | /* This is only 0 for fields that should contain registers, |
2489 | which means this pattern shouldn't have matched. */ | |
2490 | if (operand->default_reloc == 0) | |
2491 | abort (); | |
252b5132 | 2492 | |
19f78583 | 2493 | /* There is one special case for which an insn receives two |
cc8a6dd0 | 2494 | relocations, and thus the user-supplied reloc does not |
19f78583 RH |
2495 | override the operand reloc. */ |
2496 | if (operand->default_reloc == BFD_RELOC_ALPHA_HINT) | |
2497 | { | |
2498 | struct alpha_fixup *fixup; | |
252b5132 | 2499 | |
19f78583 RH |
2500 | if (insn->nfixups >= MAX_INSN_FIXUPS) |
2501 | as_fatal (_("too many fixups")); | |
252b5132 | 2502 | |
19f78583 RH |
2503 | fixup = &insn->fixups[insn->nfixups++]; |
2504 | fixup->exp = *t; | |
2505 | fixup->reloc = BFD_RELOC_ALPHA_HINT; | |
2506 | } | |
2507 | else | |
2508 | { | |
2509 | if (reloc == BFD_RELOC_UNUSED) | |
2510 | reloc = operand->default_reloc; | |
2511 | ||
2512 | assert (reloc_operand == NULL); | |
2513 | reloc_operand = operand; | |
2514 | reloc_exp = t; | |
2515 | } | |
252b5132 RH |
2516 | break; |
2517 | } | |
2518 | } | |
2519 | ||
19f78583 RH |
2520 | if (reloc != BFD_RELOC_UNUSED) |
2521 | { | |
2522 | struct alpha_fixup *fixup; | |
2523 | ||
2524 | if (insn->nfixups >= MAX_INSN_FIXUPS) | |
2525 | as_fatal (_("too many fixups")); | |
2526 | ||
2527 | /* ??? My but this is hacky. But the OSF/1 assembler uses the same | |
2528 | relocation tag for both ldah and lda with gpdisp. Choose the | |
2529 | correct internal relocation based on the opcode. */ | |
2530 | if (reloc == BFD_RELOC_ALPHA_GPDISP) | |
2531 | { | |
2532 | if (strcmp (opcode->name, "ldah") == 0) | |
2533 | reloc = BFD_RELOC_ALPHA_GPDISP_HI16; | |
2534 | else if (strcmp (opcode->name, "lda") == 0) | |
2535 | reloc = BFD_RELOC_ALPHA_GPDISP_LO16; | |
2536 | else | |
2537 | as_bad (_("invalid relocation for instruction")); | |
2538 | } | |
2539 | ||
2540 | /* If this is a real relocation (as opposed to a lituse hint), then | |
2541 | the relocation width should match the operand width. */ | |
2542 | else if (reloc < BFD_RELOC_UNUSED) | |
2543 | { | |
2544 | reloc_howto_type *reloc_howto | |
2545 | = bfd_reloc_type_lookup (stdoutput, reloc); | |
2546 | if (reloc_howto->bitsize != reloc_operand->bits) | |
2547 | { | |
2548 | as_bad (_("invalid relocation for field")); | |
2549 | return; | |
2550 | } | |
2551 | } | |
2552 | ||
2553 | fixup = &insn->fixups[insn->nfixups++]; | |
2554 | if (reloc_exp) | |
2555 | fixup->exp = *reloc_exp; | |
2556 | else | |
2557 | fixup->exp.X_op = O_absent; | |
2558 | fixup->reloc = reloc; | |
2559 | } | |
2560 | ||
252b5132 RH |
2561 | insn->insn = image; |
2562 | } | |
2563 | ||
2564 | /* | |
2565 | * Actually output an instruction with its fixup. | |
2566 | */ | |
2567 | ||
2568 | static void | |
2569 | emit_insn (insn) | |
66498417 | 2570 | struct alpha_insn *insn; |
252b5132 RH |
2571 | { |
2572 | char *f; | |
2573 | int i; | |
2574 | ||
66498417 | 2575 | /* Take care of alignment duties. */ |
252b5132 RH |
2576 | if (alpha_auto_align_on && alpha_current_align < 2) |
2577 | alpha_align (2, (char *) NULL, alpha_insn_label, 0); | |
2578 | if (alpha_current_align > 2) | |
2579 | alpha_current_align = 2; | |
2580 | alpha_insn_label = NULL; | |
2581 | ||
2582 | /* Write out the instruction. */ | |
2583 | f = frag_more (4); | |
2584 | md_number_to_chars (f, insn->insn, 4); | |
2585 | ||
4dc7ead9 RH |
2586 | #ifdef OBJ_ELF |
2587 | dwarf2_emit_insn (4); | |
2588 | #endif | |
2589 | ||
252b5132 RH |
2590 | /* Apply the fixups in order */ |
2591 | for (i = 0; i < insn->nfixups; ++i) | |
2592 | { | |
32ff5c2e | 2593 | const struct alpha_operand *operand = (const struct alpha_operand *) 0; |
252b5132 | 2594 | struct alpha_fixup *fixup = &insn->fixups[i]; |
3765b1be | 2595 | struct alpha_reloc_tag *info = NULL; |
252b5132 RH |
2596 | int size, pcrel; |
2597 | fixS *fixP; | |
2598 | ||
2599 | /* Some fixups are only used internally and so have no howto */ | |
32ff5c2e | 2600 | if ((int) fixup->reloc < 0) |
252b5132 | 2601 | { |
32ff5c2e | 2602 | operand = &alpha_operands[-(int) fixup->reloc]; |
252b5132 RH |
2603 | size = 4; |
2604 | pcrel = ((operand->flags & AXP_OPERAND_RELATIVE) != 0); | |
2605 | } | |
19f78583 RH |
2606 | else if (fixup->reloc > BFD_RELOC_UNUSED |
2607 | || fixup->reloc == BFD_RELOC_ALPHA_GPDISP_HI16 | |
2608 | || fixup->reloc == BFD_RELOC_ALPHA_GPDISP_LO16) | |
2609 | { | |
2610 | size = 2; | |
2611 | pcrel = 0; | |
2612 | } | |
1aad8cf8 | 2613 | else |
19f78583 RH |
2614 | { |
2615 | reloc_howto_type *reloc_howto | |
2616 | = bfd_reloc_type_lookup (stdoutput, fixup->reloc); | |
2617 | assert (reloc_howto); | |
252b5132 | 2618 | |
19f78583 RH |
2619 | size = bfd_get_reloc_size (reloc_howto); |
2620 | assert (size >= 1 && size <= 4); | |
43b4c25e | 2621 | |
19f78583 RH |
2622 | pcrel = reloc_howto->pc_relative; |
2623 | } | |
252b5132 RH |
2624 | |
2625 | fixP = fix_new_exp (frag_now, f - frag_now->fr_literal, size, | |
2626 | &fixup->exp, pcrel, fixup->reloc); | |
2627 | ||
43b4c25e MM |
2628 | /* Turn off complaints that the addend is too large for some fixups, |
2629 | and copy in the sequence number for the explicit relocations. */ | |
252b5132 RH |
2630 | switch (fixup->reloc) |
2631 | { | |
19f78583 | 2632 | case BFD_RELOC_ALPHA_HINT: |
252b5132 | 2633 | case BFD_RELOC_GPREL32: |
19f78583 RH |
2634 | case BFD_RELOC_GPREL16: |
2635 | case BFD_RELOC_ALPHA_GPREL_HI16: | |
2636 | case BFD_RELOC_ALPHA_GPREL_LO16: | |
3765b1be RH |
2637 | case BFD_RELOC_ALPHA_GOTDTPREL16: |
2638 | case BFD_RELOC_ALPHA_DTPREL_HI16: | |
2639 | case BFD_RELOC_ALPHA_DTPREL_LO16: | |
2640 | case BFD_RELOC_ALPHA_DTPREL16: | |
2641 | case BFD_RELOC_ALPHA_GOTTPREL16: | |
2642 | case BFD_RELOC_ALPHA_TPREL_HI16: | |
2643 | case BFD_RELOC_ALPHA_TPREL_LO16: | |
2644 | case BFD_RELOC_ALPHA_TPREL16: | |
252b5132 RH |
2645 | fixP->fx_no_overflow = 1; |
2646 | break; | |
2647 | ||
19f78583 | 2648 | case BFD_RELOC_ALPHA_GPDISP_HI16: |
43b4c25e | 2649 | fixP->fx_no_overflow = 1; |
19f78583 RH |
2650 | fixP->fx_addsy = section_symbol (now_seg); |
2651 | fixP->fx_offset = 0; | |
43b4c25e | 2652 | |
19f78583 RH |
2653 | info = get_alpha_reloc_tag (insn->sequence); |
2654 | if (++info->n_master > 1) | |
2655 | as_bad (_("too many ldah insns for !gpdisp!%ld"), insn->sequence); | |
2656 | if (info->segment != now_seg) | |
2657 | as_bad (_("both insns for !gpdisp!%ld must be in the same section"), | |
2658 | insn->sequence); | |
2659 | fixP->tc_fix_data.info = info; | |
2660 | break; | |
43b4c25e | 2661 | |
19f78583 RH |
2662 | case BFD_RELOC_ALPHA_GPDISP_LO16: |
2663 | fixP->fx_no_overflow = 1; | |
43b4c25e | 2664 | |
19f78583 RH |
2665 | info = get_alpha_reloc_tag (insn->sequence); |
2666 | if (++info->n_slaves > 1) | |
2667 | as_bad (_("too many lda insns for !gpdisp!%ld"), insn->sequence); | |
43b4c25e | 2668 | if (info->segment != now_seg) |
19f78583 RH |
2669 | as_bad (_("both insns for !gpdisp!%ld must be in the same section"), |
2670 | insn->sequence); | |
43b4c25e | 2671 | fixP->tc_fix_data.info = info; |
19f78583 | 2672 | info->slaves = fixP; |
43b4c25e MM |
2673 | break; |
2674 | ||
19f78583 RH |
2675 | case BFD_RELOC_ALPHA_LITERAL: |
2676 | case BFD_RELOC_ALPHA_ELF_LITERAL: | |
2677 | fixP->fx_no_overflow = 1; | |
43b4c25e | 2678 | |
3765b1be RH |
2679 | if (insn->sequence == 0) |
2680 | break; | |
19f78583 | 2681 | info = get_alpha_reloc_tag (insn->sequence); |
3765b1be | 2682 | info->master = fixP; |
19f78583 | 2683 | info->n_master++; |
43b4c25e MM |
2684 | if (info->segment != now_seg) |
2685 | info->multi_section_p = 1; | |
19f78583 RH |
2686 | fixP->tc_fix_data.info = info; |
2687 | break; | |
43b4c25e | 2688 | |
19f78583 | 2689 | case DUMMY_RELOC_LITUSE_ADDR: |
9e756d64 | 2690 | fixP->fx_offset = LITUSE_ALPHA_ADDR; |
19f78583 RH |
2691 | goto do_lituse; |
2692 | case DUMMY_RELOC_LITUSE_BASE: | |
9e756d64 | 2693 | fixP->fx_offset = LITUSE_ALPHA_BASE; |
19f78583 RH |
2694 | goto do_lituse; |
2695 | case DUMMY_RELOC_LITUSE_BYTOFF: | |
9e756d64 | 2696 | fixP->fx_offset = LITUSE_ALPHA_BYTOFF; |
19f78583 RH |
2697 | goto do_lituse; |
2698 | case DUMMY_RELOC_LITUSE_JSR: | |
9e756d64 | 2699 | fixP->fx_offset = LITUSE_ALPHA_JSR; |
3765b1be RH |
2700 | goto do_lituse; |
2701 | case DUMMY_RELOC_LITUSE_TLSGD: | |
9e756d64 | 2702 | fixP->fx_offset = LITUSE_ALPHA_TLSGD; |
3765b1be RH |
2703 | goto do_lituse; |
2704 | case DUMMY_RELOC_LITUSE_TLSLDM: | |
9e756d64 | 2705 | fixP->fx_offset = LITUSE_ALPHA_TLSLDM; |
3765b1be | 2706 | goto do_lituse; |
19f78583 RH |
2707 | do_lituse: |
2708 | fixP->fx_addsy = section_symbol (now_seg); | |
2709 | fixP->fx_r_type = BFD_RELOC_ALPHA_LITUSE; | |
2710 | ||
2711 | info = get_alpha_reloc_tag (insn->sequence); | |
3765b1be RH |
2712 | if (fixup->reloc == DUMMY_RELOC_LITUSE_TLSGD) |
2713 | info->saw_lu_tlsgd = 1; | |
2714 | else if (fixup->reloc == DUMMY_RELOC_LITUSE_TLSLDM) | |
2715 | info->saw_lu_tlsldm = 1; | |
2716 | if (++info->n_slaves > 1) | |
2717 | { | |
2718 | if (info->saw_lu_tlsgd) | |
2719 | as_bad (_("too many lituse insns for !lituse_tlsgd!%ld"), | |
2720 | insn->sequence); | |
2721 | else if (info->saw_lu_tlsldm) | |
2722 | as_bad (_("too many lituse insns for !lituse_tlsldm!%ld"), | |
2723 | insn->sequence); | |
2724 | } | |
19f78583 RH |
2725 | fixP->tc_fix_data.info = info; |
2726 | fixP->tc_fix_data.next_reloc = info->slaves; | |
2727 | info->slaves = fixP; | |
2728 | if (info->segment != now_seg) | |
2729 | info->multi_section_p = 1; | |
43b4c25e | 2730 | break; |
43b4c25e | 2731 | |
3765b1be RH |
2732 | case BFD_RELOC_ALPHA_TLSGD: |
2733 | fixP->fx_no_overflow = 1; | |
2734 | ||
2735 | if (insn->sequence == 0) | |
2736 | break; | |
2737 | info = get_alpha_reloc_tag (insn->sequence); | |
2738 | if (info->saw_tlsgd) | |
2739 | as_bad (_("duplicate !tlsgd!%ld"), insn->sequence); | |
2740 | else if (info->saw_tlsldm) | |
2741 | as_bad (_("sequence number in use for !tlsldm!%ld"), | |
2742 | insn->sequence); | |
2743 | else | |
2744 | info->saw_tlsgd = 1; | |
2745 | fixP->tc_fix_data.info = info; | |
2746 | break; | |
2747 | ||
2748 | case BFD_RELOC_ALPHA_TLSLDM: | |
2749 | fixP->fx_no_overflow = 1; | |
2750 | ||
2751 | if (insn->sequence == 0) | |
2752 | break; | |
2753 | info = get_alpha_reloc_tag (insn->sequence); | |
2754 | if (info->saw_tlsldm) | |
2755 | as_bad (_("duplicate !tlsldm!%ld"), insn->sequence); | |
2756 | else if (info->saw_tlsgd) | |
2757 | as_bad (_("sequence number in use for !tlsgd!%ld"), | |
2758 | insn->sequence); | |
2759 | else | |
2760 | info->saw_tlsldm = 1; | |
2761 | fixP->tc_fix_data.info = info; | |
2762 | break; | |
2763 | ||
252b5132 | 2764 | default: |
32ff5c2e | 2765 | if ((int) fixup->reloc < 0) |
252b5132 RH |
2766 | { |
2767 | if (operand->flags & AXP_OPERAND_NOOVERFLOW) | |
2768 | fixP->fx_no_overflow = 1; | |
2769 | } | |
2770 | break; | |
2771 | } | |
2772 | } | |
2773 | } | |
2774 | ||
2775 | /* Given an opcode name and a pre-tokenized set of arguments, assemble | |
2776 | the insn, but do not emit it. | |
2777 | ||
2778 | Note that this implies no macros allowed, since we can't store more | |
2779 | than one insn in an insn structure. */ | |
2780 | ||
2781 | static void | |
32ff5c2e | 2782 | assemble_tokens_to_insn (opname, tok, ntok, insn) |
252b5132 RH |
2783 | const char *opname; |
2784 | const expressionS *tok; | |
2785 | int ntok; | |
2786 | struct alpha_insn *insn; | |
2787 | { | |
2788 | const struct alpha_opcode *opcode; | |
2789 | ||
2790 | /* search opcodes */ | |
2791 | opcode = (const struct alpha_opcode *) hash_find (alpha_opcode_hash, opname); | |
2792 | if (opcode) | |
2793 | { | |
2794 | int cpumatch; | |
2795 | opcode = find_opcode_match (opcode, tok, &ntok, &cpumatch); | |
2796 | if (opcode) | |
2797 | { | |
19f78583 | 2798 | assemble_insn (opcode, tok, ntok, insn, BFD_RELOC_UNUSED); |
252b5132 RH |
2799 | return; |
2800 | } | |
2801 | else if (cpumatch) | |
2802 | as_bad (_("inappropriate arguments for opcode `%s'"), opname); | |
2803 | else | |
2804 | as_bad (_("opcode `%s' not supported for target %s"), opname, | |
1aad8cf8 | 2805 | alpha_target_name); |
252b5132 RH |
2806 | } |
2807 | else | |
2808 | as_bad (_("unknown opcode `%s'"), opname); | |
2809 | } | |
2810 | ||
2811 | /* Given an opcode name and a pre-tokenized set of arguments, take the | |
2812 | opcode all the way through emission. */ | |
2813 | ||
2814 | static void | |
2815 | assemble_tokens (opname, tok, ntok, local_macros_on) | |
2816 | const char *opname; | |
2817 | const expressionS *tok; | |
2818 | int ntok; | |
2819 | int local_macros_on; | |
2820 | { | |
2821 | int found_something = 0; | |
2822 | const struct alpha_opcode *opcode; | |
2823 | const struct alpha_macro *macro; | |
2824 | int cpumatch = 1; | |
19f78583 | 2825 | bfd_reloc_code_real_type reloc = BFD_RELOC_UNUSED; |
252b5132 | 2826 | |
69108c1f | 2827 | #ifdef RELOC_OP_P |
19f78583 RH |
2828 | /* If a user-specified relocation is present, this is not a macro. */ |
2829 | if (ntok && USER_RELOC_P (tok[ntok - 1].X_op)) | |
2830 | { | |
2831 | reloc = ALPHA_RELOC_TABLE (tok[ntok - 1].X_op)->reloc; | |
2832 | ntok--; | |
2833 | } | |
69108c1f AM |
2834 | else |
2835 | #endif | |
2836 | if (local_macros_on) | |
252b5132 RH |
2837 | { |
2838 | macro = ((const struct alpha_macro *) | |
2839 | hash_find (alpha_macro_hash, opname)); | |
2840 | if (macro) | |
2841 | { | |
2842 | found_something = 1; | |
2843 | macro = find_macro_match (macro, tok, &ntok); | |
2844 | if (macro) | |
2845 | { | |
2846 | (*macro->emit) (tok, ntok, macro->arg); | |
2847 | return; | |
2848 | } | |
2849 | } | |
2850 | } | |
2851 | ||
2852 | /* search opcodes */ | |
2853 | opcode = (const struct alpha_opcode *) hash_find (alpha_opcode_hash, opname); | |
2854 | if (opcode) | |
2855 | { | |
2856 | found_something = 1; | |
2857 | opcode = find_opcode_match (opcode, tok, &ntok, &cpumatch); | |
2858 | if (opcode) | |
2859 | { | |
2860 | struct alpha_insn insn; | |
19f78583 RH |
2861 | assemble_insn (opcode, tok, ntok, &insn, reloc); |
2862 | ||
2863 | /* Copy the sequence number for the reloc from the reloc token. */ | |
2864 | if (reloc != BFD_RELOC_UNUSED) | |
2865 | insn.sequence = tok[ntok].X_add_number; | |
2866 | ||
252b5132 RH |
2867 | emit_insn (&insn); |
2868 | return; | |
2869 | } | |
2870 | } | |
2871 | ||
2872 | if (found_something) | |
19f78583 RH |
2873 | { |
2874 | if (cpumatch) | |
2875 | as_bad (_("inappropriate arguments for opcode `%s'"), opname); | |
2876 | else | |
2877 | as_bad (_("opcode `%s' not supported for target %s"), opname, | |
2878 | alpha_target_name); | |
2879 | } | |
252b5132 RH |
2880 | else |
2881 | as_bad (_("unknown opcode `%s'"), opname); | |
2882 | } | |
252b5132 RH |
2883 | \f |
2884 | /* Some instruction sets indexed by lg(size) */ | |
2885 | static const char * const sextX_op[] = { "sextb", "sextw", "sextl", NULL }; | |
2886 | static const char * const insXl_op[] = { "insbl", "inswl", "insll", "insql" }; | |
2887 | static const char * const insXh_op[] = { NULL, "inswh", "inslh", "insqh" }; | |
2888 | static const char * const extXl_op[] = { "extbl", "extwl", "extll", "extql" }; | |
2889 | static const char * const extXh_op[] = { NULL, "extwh", "extlh", "extqh" }; | |
2890 | static const char * const mskXl_op[] = { "mskbl", "mskwl", "mskll", "mskql" }; | |
2891 | static const char * const mskXh_op[] = { NULL, "mskwh", "msklh", "mskqh" }; | |
2892 | static const char * const stX_op[] = { "stb", "stw", "stl", "stq" }; | |
252b5132 RH |
2893 | static const char * const ldXu_op[] = { "ldbu", "ldwu", NULL, NULL }; |
2894 | ||
2895 | /* Implement the ldgp macro. */ | |
2896 | ||
2897 | static void | |
2898 | emit_ldgp (tok, ntok, unused) | |
2899 | const expressionS *tok; | |
446a06c9 MM |
2900 | int ntok ATTRIBUTE_UNUSED; |
2901 | const PTR unused ATTRIBUTE_UNUSED; | |
252b5132 RH |
2902 | { |
2903 | #ifdef OBJ_AOUT | |
2904 | FIXME | |
2905 | #endif | |
2906 | #if defined(OBJ_ECOFF) || defined(OBJ_ELF) | |
2907 | /* from "ldgp r1,n(r2)", generate "ldah r1,X(R2); lda r1,Y(r1)" | |
2908 | with appropriate constants and relocations. */ | |
2909 | struct alpha_insn insn; | |
2910 | expressionS newtok[3]; | |
2911 | expressionS addend; | |
2912 | ||
252b5132 RH |
2913 | #ifdef OBJ_ECOFF |
2914 | if (regno (tok[2].X_add_number) == AXP_REG_PV) | |
2915 | ecoff_set_gp_prolog_size (0); | |
2916 | #endif | |
2917 | ||
2918 | newtok[0] = tok[0]; | |
2919 | set_tok_const (newtok[1], 0); | |
2920 | newtok[2] = tok[2]; | |
2921 | ||
2922 | assemble_tokens_to_insn ("ldah", newtok, 3, &insn); | |
2923 | ||
2924 | addend = tok[1]; | |
2925 | ||
2926 | #ifdef OBJ_ECOFF | |
2927 | if (addend.X_op != O_constant) | |
2928 | as_bad (_("can not resolve expression")); | |
2929 | addend.X_op = O_symbol; | |
2930 | addend.X_add_symbol = alpha_gp_symbol; | |
2931 | #endif | |
2932 | ||
2933 | insn.nfixups = 1; | |
2934 | insn.fixups[0].exp = addend; | |
2935 | insn.fixups[0].reloc = BFD_RELOC_ALPHA_GPDISP_HI16; | |
19f78583 | 2936 | insn.sequence = next_sequence_num; |
252b5132 RH |
2937 | |
2938 | emit_insn (&insn); | |
2939 | ||
2940 | set_tok_preg (newtok[2], tok[0].X_add_number); | |
2941 | ||
2942 | assemble_tokens_to_insn ("lda", newtok, 3, &insn); | |
2943 | ||
2944 | #ifdef OBJ_ECOFF | |
2945 | addend.X_add_number += 4; | |
2946 | #endif | |
2947 | ||
2948 | insn.nfixups = 1; | |
2949 | insn.fixups[0].exp = addend; | |
2950 | insn.fixups[0].reloc = BFD_RELOC_ALPHA_GPDISP_LO16; | |
19f78583 | 2951 | insn.sequence = next_sequence_num--; |
252b5132 RH |
2952 | |
2953 | emit_insn (&insn); | |
2954 | #endif /* OBJ_ECOFF || OBJ_ELF */ | |
2955 | } | |
2956 | ||
2957 | #ifdef OBJ_EVAX | |
2958 | ||
2959 | /* Add symbol+addend to link pool. | |
2960 | Return offset from basesym to entry in link pool. | |
2961 | ||
2962 | Add new fixup only if offset isn't 16bit. */ | |
2963 | ||
2964 | valueT | |
2965 | add_to_link_pool (basesym, sym, addend) | |
2966 | symbolS *basesym; | |
2967 | symbolS *sym; | |
2968 | offsetT addend; | |
2969 | { | |
2970 | segT current_section = now_seg; | |
2971 | int current_subsec = now_subseg; | |
2972 | valueT offset; | |
2973 | bfd_reloc_code_real_type reloc_type; | |
2974 | char *p; | |
2975 | segment_info_type *seginfo = seg_info (alpha_link_section); | |
2976 | fixS *fixp; | |
2977 | ||
7dcc9865 | 2978 | offset = - *symbol_get_obj (basesym); |
252b5132 RH |
2979 | |
2980 | /* @@ This assumes all entries in a given section will be of the same | |
2981 | size... Probably correct, but unwise to rely on. */ | |
2982 | /* This must always be called with the same subsegment. */ | |
2983 | ||
2984 | if (seginfo->frchainP) | |
2985 | for (fixp = seginfo->frchainP->fix_root; | |
2986 | fixp != (fixS *) NULL; | |
2987 | fixp = fixp->fx_next, offset += 8) | |
2988 | { | |
2989 | if (fixp->fx_addsy == sym && fixp->fx_offset == addend) | |
2990 | { | |
2991 | if (range_signed_16 (offset)) | |
2992 | { | |
1aad8cf8 | 2993 | return offset; |
252b5132 RH |
2994 | } |
2995 | } | |
2996 | } | |
2997 | ||
2998 | /* Not found in 16bit signed range. */ | |
2999 | ||
3000 | subseg_set (alpha_link_section, 0); | |
3001 | p = frag_more (8); | |
3002 | memset (p, 0, 8); | |
3003 | ||
3004 | fix_new (frag_now, p - frag_now->fr_literal, 8, sym, addend, 0, | |
3005 | BFD_RELOC_64); | |
3006 | ||
3007 | subseg_set (current_section, current_subsec); | |
3008 | seginfo->literal_pool_size += 8; | |
3009 | return offset; | |
3010 | } | |
3011 | ||
3012 | #endif /* OBJ_EVAX */ | |
3013 | ||
3014 | /* Load a (partial) expression into a target register. | |
3015 | ||
3016 | If poffset is not null, after the call it will either contain | |
3017 | O_constant 0, or a 16-bit offset appropriate for any MEM format | |
3018 | instruction. In addition, pbasereg will be modified to point to | |
3019 | the base register to use in that MEM format instruction. | |
3020 | ||
3021 | In any case, *pbasereg should contain a base register to add to the | |
3022 | expression. This will normally be either AXP_REG_ZERO or | |
3023 | alpha_gp_register. Symbol addresses will always be loaded via $gp, | |
3024 | so "foo($0)" is interpreted as adding the address of foo to $0; | |
3025 | i.e. "ldq $targ, LIT($gp); addq $targ, $0, $targ". Odd, perhaps, | |
3026 | but this is what OSF/1 does. | |
3027 | ||
43b4c25e MM |
3028 | If explicit relocations of the form !literal!<number> are allowed, |
3029 | and used, then explict_reloc with be an expression pointer. | |
3030 | ||
19f78583 RH |
3031 | Finally, the return value is nonzero if the calling macro may emit |
3032 | a LITUSE reloc if otherwise appropriate; the return value is the | |
3033 | sequence number to use. */ | |
252b5132 | 3034 | |
19f78583 RH |
3035 | static long |
3036 | load_expression (targreg, exp, pbasereg, poffset) | |
252b5132 RH |
3037 | int targreg; |
3038 | const expressionS *exp; | |
3039 | int *pbasereg; | |
3040 | expressionS *poffset; | |
3041 | { | |
19f78583 | 3042 | long emit_lituse = 0; |
252b5132 RH |
3043 | offsetT addend = exp->X_add_number; |
3044 | int basereg = *pbasereg; | |
3045 | struct alpha_insn insn; | |
3046 | expressionS newtok[3]; | |
3047 | ||
3048 | switch (exp->X_op) | |
3049 | { | |
3050 | case O_symbol: | |
3051 | { | |
3052 | #ifdef OBJ_ECOFF | |
3053 | offsetT lit; | |
3054 | ||
3055 | /* attempt to reduce .lit load by splitting the offset from | |
3056 | its symbol when possible, but don't create a situation in | |
3057 | which we'd fail. */ | |
3058 | if (!range_signed_32 (addend) && | |
3059 | (alpha_noat_on || targreg == AXP_REG_AT)) | |
3060 | { | |
3061 | lit = add_to_literal_pool (exp->X_add_symbol, addend, | |
3062 | alpha_lita_section, 8); | |
3063 | addend = 0; | |
3064 | } | |
3065 | else | |
3066 | { | |
3067 | lit = add_to_literal_pool (exp->X_add_symbol, 0, | |
3068 | alpha_lita_section, 8); | |
3069 | } | |
3070 | ||
3071 | if (lit >= 0x8000) | |
3072 | as_fatal (_("overflow in literal (.lita) table")); | |
3073 | ||
3074 | /* emit "ldq r, lit(gp)" */ | |
3075 | ||
3076 | if (basereg != alpha_gp_register && targreg == basereg) | |
3077 | { | |
3078 | if (alpha_noat_on) | |
3079 | as_bad (_("macro requires $at register while noat in effect")); | |
3080 | if (targreg == AXP_REG_AT) | |
3081 | as_bad (_("macro requires $at while $at in use")); | |
3082 | ||
3083 | set_tok_reg (newtok[0], AXP_REG_AT); | |
3084 | } | |
3085 | else | |
3086 | set_tok_reg (newtok[0], targreg); | |
3087 | set_tok_sym (newtok[1], alpha_lita_symbol, lit); | |
3088 | set_tok_preg (newtok[2], alpha_gp_register); | |
3089 | ||
3090 | assemble_tokens_to_insn ("ldq", newtok, 3, &insn); | |
3091 | ||
3092 | assert (insn.nfixups == 1); | |
3093 | insn.fixups[0].reloc = BFD_RELOC_ALPHA_LITERAL; | |
19f78583 | 3094 | insn.sequence = emit_lituse = next_sequence_num--; |
252b5132 RH |
3095 | #endif /* OBJ_ECOFF */ |
3096 | #ifdef OBJ_ELF | |
3097 | /* emit "ldq r, gotoff(gp)" */ | |
3098 | ||
3099 | if (basereg != alpha_gp_register && targreg == basereg) | |
3100 | { | |
3101 | if (alpha_noat_on) | |
3102 | as_bad (_("macro requires $at register while noat in effect")); | |
3103 | if (targreg == AXP_REG_AT) | |
3104 | as_bad (_("macro requires $at while $at in use")); | |
3105 | ||
3106 | set_tok_reg (newtok[0], AXP_REG_AT); | |
3107 | } | |
3108 | else | |
3109 | set_tok_reg (newtok[0], targreg); | |
3110 | ||
3111 | /* XXX: Disable this .got minimizing optimization so that we can get | |
3112 | better instruction offset knowledge in the compiler. This happens | |
3113 | very infrequently anyway. */ | |
66498417 KH |
3114 | if (1 |
3115 | || (!range_signed_32 (addend) | |
3116 | && (alpha_noat_on || targreg == AXP_REG_AT))) | |
252b5132 RH |
3117 | { |
3118 | newtok[1] = *exp; | |
3119 | addend = 0; | |
3120 | } | |
3121 | else | |
3122 | { | |
3123 | set_tok_sym (newtok[1], exp->X_add_symbol, 0); | |
3124 | } | |
3125 | ||
3126 | set_tok_preg (newtok[2], alpha_gp_register); | |
3127 | ||
3128 | assemble_tokens_to_insn ("ldq", newtok, 3, &insn); | |
3129 | ||
3130 | assert (insn.nfixups == 1); | |
19f78583 RH |
3131 | insn.fixups[0].reloc = BFD_RELOC_ALPHA_ELF_LITERAL; |
3132 | insn.sequence = emit_lituse = next_sequence_num--; | |
252b5132 RH |
3133 | #endif /* OBJ_ELF */ |
3134 | #ifdef OBJ_EVAX | |
3135 | offsetT link; | |
3136 | ||
3137 | /* Find symbol or symbol pointer in link section. */ | |
3138 | ||
3139 | if (exp->X_add_symbol == alpha_evax_proc.symbol) | |
3140 | { | |
3141 | if (range_signed_16 (addend)) | |
3142 | { | |
3143 | set_tok_reg (newtok[0], targreg); | |
3144 | set_tok_const (newtok[1], addend); | |
3145 | set_tok_preg (newtok[2], basereg); | |
3146 | assemble_tokens_to_insn ("lda", newtok, 3, &insn); | |
3147 | addend = 0; | |
3148 | } | |
3149 | else | |
3150 | { | |
3151 | set_tok_reg (newtok[0], targreg); | |
3152 | set_tok_const (newtok[1], 0); | |
3153 | set_tok_preg (newtok[2], basereg); | |
3154 | assemble_tokens_to_insn ("lda", newtok, 3, &insn); | |
3155 | } | |
3156 | } | |
3157 | else | |
3158 | { | |
3159 | if (!range_signed_32 (addend)) | |
3160 | { | |
3161 | link = add_to_link_pool (alpha_evax_proc.symbol, | |
3162 | exp->X_add_symbol, addend); | |
3163 | addend = 0; | |
3164 | } | |
3165 | else | |
3166 | { | |
3167 | link = add_to_link_pool (alpha_evax_proc.symbol, | |
3168 | exp->X_add_symbol, 0); | |
3169 | } | |
3170 | set_tok_reg (newtok[0], targreg); | |
3171 | set_tok_const (newtok[1], link); | |
3172 | set_tok_preg (newtok[2], basereg); | |
3173 | assemble_tokens_to_insn ("ldq", newtok, 3, &insn); | |
3174 | } | |
3175 | #endif /* OBJ_EVAX */ | |
3176 | ||
32ff5c2e | 3177 | emit_insn (&insn); |
252b5132 RH |
3178 | |
3179 | #ifndef OBJ_EVAX | |
252b5132 RH |
3180 | if (basereg != alpha_gp_register && basereg != AXP_REG_ZERO) |
3181 | { | |
3182 | /* emit "addq r, base, r" */ | |
3183 | ||
3184 | set_tok_reg (newtok[1], basereg); | |
3185 | set_tok_reg (newtok[2], targreg); | |
3186 | assemble_tokens ("addq", newtok, 3, 0); | |
3187 | } | |
3188 | #endif | |
3189 | ||
3190 | basereg = targreg; | |
3191 | } | |
3192 | break; | |
3193 | ||
3194 | case O_constant: | |
3195 | break; | |
3196 | ||
3197 | case O_subtract: | |
3198 | /* Assume that this difference expression will be resolved to an | |
1dab94dd | 3199 | absolute value and that that value will fit in 16 bits. */ |
252b5132 RH |
3200 | |
3201 | set_tok_reg (newtok[0], targreg); | |
3202 | newtok[1] = *exp; | |
3203 | set_tok_preg (newtok[2], basereg); | |
3204 | assemble_tokens ("lda", newtok, 3, 0); | |
3205 | ||
3206 | if (poffset) | |
3207 | set_tok_const (*poffset, 0); | |
3208 | return 0; | |
3209 | ||
3210 | case O_big: | |
3211 | if (exp->X_add_number > 0) | |
3212 | as_bad (_("bignum invalid; zero assumed")); | |
3213 | else | |
3214 | as_bad (_("floating point number invalid; zero assumed")); | |
3215 | addend = 0; | |
3216 | break; | |
3217 | ||
3218 | default: | |
3219 | as_bad (_("can't handle expression")); | |
3220 | addend = 0; | |
3221 | break; | |
3222 | } | |
3223 | ||
3224 | if (!range_signed_32 (addend)) | |
3225 | { | |
3226 | offsetT lit; | |
19f78583 | 3227 | long seq_num = next_sequence_num--; |
252b5132 | 3228 | |
19f78583 | 3229 | /* For 64-bit addends, just put it in the literal pool. */ |
252b5132 RH |
3230 | |
3231 | #ifdef OBJ_EVAX | |
3232 | /* emit "ldq targreg, lit(basereg)" */ | |
3233 | lit = add_to_link_pool (alpha_evax_proc.symbol, | |
3234 | section_symbol (absolute_section), addend); | |
3235 | set_tok_reg (newtok[0], targreg); | |
3236 | set_tok_const (newtok[1], lit); | |
3237 | set_tok_preg (newtok[2], alpha_gp_register); | |
3238 | assemble_tokens ("ldq", newtok, 3, 0); | |
3239 | #else | |
3240 | ||
3241 | if (alpha_lit8_section == NULL) | |
3242 | { | |
3243 | create_literal_section (".lit8", | |
3244 | &alpha_lit8_section, | |
3245 | &alpha_lit8_symbol); | |
3246 | ||
3247 | #ifdef OBJ_ECOFF | |
3248 | alpha_lit8_literal = add_to_literal_pool (alpha_lit8_symbol, 0x8000, | |
3249 | alpha_lita_section, 8); | |
3250 | if (alpha_lit8_literal >= 0x8000) | |
3251 | as_fatal (_("overflow in literal (.lita) table")); | |
3252 | #endif | |
3253 | } | |
3254 | ||
3255 | lit = add_to_literal_pool (NULL, addend, alpha_lit8_section, 8) - 0x8000; | |
3256 | if (lit >= 0x8000) | |
3257 | as_fatal (_("overflow in literal (.lit8) table")); | |
3258 | ||
3259 | /* emit "lda litreg, .lit8+0x8000" */ | |
3260 | ||
3261 | if (targreg == basereg) | |
3262 | { | |
3263 | if (alpha_noat_on) | |
3264 | as_bad (_("macro requires $at register while noat in effect")); | |
3265 | if (targreg == AXP_REG_AT) | |
3266 | as_bad (_("macro requires $at while $at in use")); | |
3267 | ||
3268 | set_tok_reg (newtok[0], AXP_REG_AT); | |
3269 | } | |
3270 | else | |
3271 | set_tok_reg (newtok[0], targreg); | |
3272 | #ifdef OBJ_ECOFF | |
3273 | set_tok_sym (newtok[1], alpha_lita_symbol, alpha_lit8_literal); | |
3274 | #endif | |
3275 | #ifdef OBJ_ELF | |
3276 | set_tok_sym (newtok[1], alpha_lit8_symbol, 0x8000); | |
3277 | #endif | |
3278 | set_tok_preg (newtok[2], alpha_gp_register); | |
3279 | ||
3280 | assemble_tokens_to_insn ("ldq", newtok, 3, &insn); | |
3281 | ||
3282 | assert (insn.nfixups == 1); | |
3283 | #ifdef OBJ_ECOFF | |
3284 | insn.fixups[0].reloc = BFD_RELOC_ALPHA_LITERAL; | |
3285 | #endif | |
3286 | #ifdef OBJ_ELF | |
3287 | insn.fixups[0].reloc = BFD_RELOC_ALPHA_ELF_LITERAL; | |
3288 | #endif | |
19f78583 | 3289 | insn.sequence = seq_num; |
252b5132 RH |
3290 | |
3291 | emit_insn (&insn); | |
3292 | ||
3293 | /* emit "ldq litreg, lit(litreg)" */ | |
3294 | ||
3295 | set_tok_const (newtok[1], lit); | |
3296 | set_tok_preg (newtok[2], newtok[0].X_add_number); | |
3297 | ||
3298 | assemble_tokens_to_insn ("ldq", newtok, 3, &insn); | |
3299 | ||
3300 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
19f78583 RH |
3301 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BASE; |
3302 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
252b5132 | 3303 | insn.nfixups++; |
19f78583 | 3304 | insn.sequence = seq_num; |
252b5132 RH |
3305 | emit_lituse = 0; |
3306 | ||
3307 | emit_insn (&insn); | |
3308 | ||
3309 | /* emit "addq litreg, base, target" */ | |
3310 | ||
3311 | if (basereg != AXP_REG_ZERO) | |
3312 | { | |
3313 | set_tok_reg (newtok[1], basereg); | |
3314 | set_tok_reg (newtok[2], targreg); | |
3315 | assemble_tokens ("addq", newtok, 3, 0); | |
3316 | } | |
3317 | #endif /* !OBJ_EVAX */ | |
3318 | ||
3319 | if (poffset) | |
3320 | set_tok_const (*poffset, 0); | |
3321 | *pbasereg = targreg; | |
3322 | } | |
3323 | else | |
3324 | { | |
3325 | offsetT low, high, extra, tmp; | |
3326 | ||
3327 | /* for 32-bit operands, break up the addend */ | |
3328 | ||
3329 | low = sign_extend_16 (addend); | |
3330 | tmp = addend - low; | |
3331 | high = sign_extend_16 (tmp >> 16); | |
3332 | ||
3333 | if (tmp - (high << 16)) | |
3334 | { | |
3335 | extra = 0x4000; | |
3336 | tmp -= 0x40000000; | |
3337 | high = sign_extend_16 (tmp >> 16); | |
3338 | } | |
3339 | else | |
3340 | extra = 0; | |
3341 | ||
3342 | set_tok_reg (newtok[0], targreg); | |
3343 | set_tok_preg (newtok[2], basereg); | |
3344 | ||
3345 | if (extra) | |
3346 | { | |
3347 | /* emit "ldah r, extra(r) */ | |
3348 | set_tok_const (newtok[1], extra); | |
3349 | assemble_tokens ("ldah", newtok, 3, 0); | |
3350 | set_tok_preg (newtok[2], basereg = targreg); | |
3351 | } | |
3352 | ||
3353 | if (high) | |
3354 | { | |
3355 | /* emit "ldah r, high(r) */ | |
3356 | set_tok_const (newtok[1], high); | |
3357 | assemble_tokens ("ldah", newtok, 3, 0); | |
3358 | basereg = targreg; | |
3359 | set_tok_preg (newtok[2], basereg); | |
3360 | } | |
3361 | ||
3362 | if ((low && !poffset) || (!poffset && basereg != targreg)) | |
3363 | { | |
3364 | /* emit "lda r, low(base)" */ | |
3365 | set_tok_const (newtok[1], low); | |
3366 | assemble_tokens ("lda", newtok, 3, 0); | |
3367 | basereg = targreg; | |
3368 | low = 0; | |
3369 | } | |
3370 | ||
3371 | if (poffset) | |
3372 | set_tok_const (*poffset, low); | |
3373 | *pbasereg = basereg; | |
3374 | } | |
3375 | ||
3376 | return emit_lituse; | |
3377 | } | |
3378 | ||
3379 | /* The lda macro differs from the lda instruction in that it handles | |
3380 | most simple expressions, particualrly symbol address loads and | |
3381 | large constants. */ | |
3382 | ||
3383 | static void | |
19f78583 | 3384 | emit_lda (tok, ntok, unused) |
252b5132 RH |
3385 | const expressionS *tok; |
3386 | int ntok; | |
19f78583 | 3387 | const PTR unused ATTRIBUTE_UNUSED; |
252b5132 RH |
3388 | { |
3389 | int basereg; | |
3390 | ||
3391 | if (ntok == 2) | |
3392 | basereg = (tok[1].X_op == O_constant ? AXP_REG_ZERO : alpha_gp_register); | |
3393 | else | |
3394 | basereg = tok[2].X_add_number; | |
3395 | ||
19f78583 | 3396 | (void) load_expression (tok[0].X_add_number, &tok[1], &basereg, NULL); |
252b5132 RH |
3397 | } |
3398 | ||
3399 | /* The ldah macro differs from the ldah instruction in that it has $31 | |
3400 | as an implied base register. */ | |
3401 | ||
3402 | static void | |
3403 | emit_ldah (tok, ntok, unused) | |
3404 | const expressionS *tok; | |
446a06c9 MM |
3405 | int ntok ATTRIBUTE_UNUSED; |
3406 | const PTR unused ATTRIBUTE_UNUSED; | |
252b5132 RH |
3407 | { |
3408 | expressionS newtok[3]; | |
3409 | ||
3410 | newtok[0] = tok[0]; | |
3411 | newtok[1] = tok[1]; | |
3412 | set_tok_preg (newtok[2], AXP_REG_ZERO); | |
3413 | ||
3414 | assemble_tokens ("ldah", newtok, 3, 0); | |
3415 | } | |
3416 | ||
3417 | /* Handle all "simple" integer register loads -- ldq, ldq_l, ldq_u, | |
3418 | etc. They differ from the real instructions in that they do simple | |
3419 | expressions like the lda macro. */ | |
3420 | ||
3421 | static void | |
3422 | emit_ir_load (tok, ntok, opname) | |
3423 | const expressionS *tok; | |
3424 | int ntok; | |
3425 | const PTR opname; | |
3426 | { | |
19f78583 RH |
3427 | int basereg; |
3428 | long lituse; | |
252b5132 RH |
3429 | expressionS newtok[3]; |
3430 | struct alpha_insn insn; | |
3431 | ||
3432 | if (ntok == 2) | |
3433 | basereg = (tok[1].X_op == O_constant ? AXP_REG_ZERO : alpha_gp_register); | |
3434 | else | |
3435 | basereg = tok[2].X_add_number; | |
3436 | ||
3437 | lituse = load_expression (tok[0].X_add_number, &tok[1], &basereg, | |
19f78583 | 3438 | &newtok[1]); |
252b5132 RH |
3439 | |
3440 | newtok[0] = tok[0]; | |
3441 | set_tok_preg (newtok[2], basereg); | |
3442 | ||
32ff5c2e | 3443 | assemble_tokens_to_insn ((const char *) opname, newtok, 3, &insn); |
252b5132 RH |
3444 | |
3445 | if (lituse) | |
3446 | { | |
3447 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
19f78583 RH |
3448 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BASE; |
3449 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
252b5132 | 3450 | insn.nfixups++; |
19f78583 | 3451 | insn.sequence = lituse; |
252b5132 RH |
3452 | } |
3453 | ||
3454 | emit_insn (&insn); | |
3455 | } | |
3456 | ||
3457 | /* Handle fp register loads, and both integer and fp register stores. | |
3458 | Again, we handle simple expressions. */ | |
3459 | ||
3460 | static void | |
3461 | emit_loadstore (tok, ntok, opname) | |
3462 | const expressionS *tok; | |
3463 | int ntok; | |
3464 | const PTR opname; | |
3465 | { | |
19f78583 RH |
3466 | int basereg; |
3467 | long lituse; | |
252b5132 RH |
3468 | expressionS newtok[3]; |
3469 | struct alpha_insn insn; | |
3470 | ||
3471 | if (ntok == 2) | |
3472 | basereg = (tok[1].X_op == O_constant ? AXP_REG_ZERO : alpha_gp_register); | |
3473 | else | |
3474 | basereg = tok[2].X_add_number; | |
3475 | ||
32ff5c2e | 3476 | if (tok[1].X_op != O_constant || !range_signed_16 (tok[1].X_add_number)) |
252b5132 RH |
3477 | { |
3478 | if (alpha_noat_on) | |
3479 | as_bad (_("macro requires $at register while noat in effect")); | |
3480 | ||
19f78583 | 3481 | lituse = load_expression (AXP_REG_AT, &tok[1], &basereg, &newtok[1]); |
252b5132 RH |
3482 | } |
3483 | else | |
3484 | { | |
3485 | newtok[1] = tok[1]; | |
3486 | lituse = 0; | |
3487 | } | |
3488 | ||
3489 | newtok[0] = tok[0]; | |
3490 | set_tok_preg (newtok[2], basereg); | |
3491 | ||
32ff5c2e | 3492 | assemble_tokens_to_insn ((const char *) opname, newtok, 3, &insn); |
252b5132 RH |
3493 | |
3494 | if (lituse) | |
3495 | { | |
3496 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
19f78583 RH |
3497 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BASE; |
3498 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
252b5132 | 3499 | insn.nfixups++; |
19f78583 | 3500 | insn.sequence = lituse; |
252b5132 RH |
3501 | } |
3502 | ||
3503 | emit_insn (&insn); | |
3504 | } | |
3505 | ||
3506 | /* Load a half-word or byte as an unsigned value. */ | |
3507 | ||
3508 | static void | |
3509 | emit_ldXu (tok, ntok, vlgsize) | |
3510 | const expressionS *tok; | |
3511 | int ntok; | |
3512 | const PTR vlgsize; | |
3513 | { | |
3514 | if (alpha_target & AXP_OPCODE_BWX) | |
32ff5c2e | 3515 | emit_ir_load (tok, ntok, ldXu_op[(long) vlgsize]); |
252b5132 RH |
3516 | else |
3517 | { | |
3518 | expressionS newtok[3]; | |
19f78583 RH |
3519 | struct alpha_insn insn; |
3520 | int basereg; | |
3521 | long lituse; | |
43b4c25e | 3522 | |
252b5132 RH |
3523 | if (alpha_noat_on) |
3524 | as_bad (_("macro requires $at register while noat in effect")); | |
3525 | ||
19f78583 RH |
3526 | if (ntok == 2) |
3527 | basereg = (tok[1].X_op == O_constant | |
3528 | ? AXP_REG_ZERO : alpha_gp_register); | |
3529 | else | |
3530 | basereg = tok[2].X_add_number; | |
3531 | ||
252b5132 RH |
3532 | /* emit "lda $at, exp" */ |
3533 | ||
19f78583 | 3534 | lituse = load_expression (AXP_REG_AT, &tok[1], &basereg, NULL); |
252b5132 RH |
3535 | |
3536 | /* emit "ldq_u targ, 0($at)" */ | |
3537 | ||
3538 | newtok[0] = tok[0]; | |
3539 | set_tok_const (newtok[1], 0); | |
19f78583 RH |
3540 | set_tok_preg (newtok[2], basereg); |
3541 | assemble_tokens_to_insn ("ldq_u", newtok, 3, &insn); | |
3542 | ||
3543 | if (lituse) | |
3544 | { | |
3545 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
3546 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BASE; | |
3547 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
3548 | insn.nfixups++; | |
3549 | insn.sequence = lituse; | |
3550 | } | |
3551 | ||
3552 | emit_insn (&insn); | |
252b5132 RH |
3553 | |
3554 | /* emit "extXl targ, $at, targ" */ | |
3555 | ||
19f78583 | 3556 | set_tok_reg (newtok[1], basereg); |
252b5132 | 3557 | newtok[2] = newtok[0]; |
19f78583 RH |
3558 | assemble_tokens_to_insn (extXl_op[(long) vlgsize], newtok, 3, &insn); |
3559 | ||
3560 | if (lituse) | |
3561 | { | |
3562 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
3563 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BYTOFF; | |
3564 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
3565 | insn.nfixups++; | |
3566 | insn.sequence = lituse; | |
3567 | } | |
3568 | ||
3569 | emit_insn (&insn); | |
252b5132 RH |
3570 | } |
3571 | } | |
3572 | ||
3573 | /* Load a half-word or byte as a signed value. */ | |
3574 | ||
3575 | static void | |
3576 | emit_ldX (tok, ntok, vlgsize) | |
3577 | const expressionS *tok; | |
3578 | int ntok; | |
3579 | const PTR vlgsize; | |
3580 | { | |
3581 | emit_ldXu (tok, ntok, vlgsize); | |
32ff5c2e | 3582 | assemble_tokens (sextX_op[(long) vlgsize], tok, 1, 1); |
252b5132 RH |
3583 | } |
3584 | ||
3585 | /* Load an integral value from an unaligned address as an unsigned | |
3586 | value. */ | |
3587 | ||
3588 | static void | |
3589 | emit_uldXu (tok, ntok, vlgsize) | |
3590 | const expressionS *tok; | |
3591 | int ntok; | |
3592 | const PTR vlgsize; | |
3593 | { | |
32ff5c2e | 3594 | long lgsize = (long) vlgsize; |
252b5132 RH |
3595 | expressionS newtok[3]; |
3596 | ||
3597 | if (alpha_noat_on) | |
3598 | as_bad (_("macro requires $at register while noat in effect")); | |
3599 | ||
3600 | /* emit "lda $at, exp" */ | |
3601 | ||
3602 | memcpy (newtok, tok, sizeof (expressionS) * ntok); | |
3603 | newtok[0].X_add_number = AXP_REG_AT; | |
3604 | assemble_tokens ("lda", newtok, ntok, 1); | |
3605 | ||
3606 | /* emit "ldq_u $t9, 0($at)" */ | |
3607 | ||
3608 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3609 | set_tok_const (newtok[1], 0); | |
3610 | set_tok_preg (newtok[2], AXP_REG_AT); | |
3611 | assemble_tokens ("ldq_u", newtok, 3, 1); | |
3612 | ||
3613 | /* emit "ldq_u $t10, size-1($at)" */ | |
3614 | ||
3615 | set_tok_reg (newtok[0], AXP_REG_T10); | |
66498417 | 3616 | set_tok_const (newtok[1], (1 << lgsize) - 1); |
252b5132 RH |
3617 | assemble_tokens ("ldq_u", newtok, 3, 1); |
3618 | ||
3619 | /* emit "extXl $t9, $at, $t9" */ | |
3620 | ||
3621 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3622 | set_tok_reg (newtok[1], AXP_REG_AT); | |
3623 | set_tok_reg (newtok[2], AXP_REG_T9); | |
3624 | assemble_tokens (extXl_op[lgsize], newtok, 3, 1); | |
3625 | ||
3626 | /* emit "extXh $t10, $at, $t10" */ | |
3627 | ||
3628 | set_tok_reg (newtok[0], AXP_REG_T10); | |
3629 | set_tok_reg (newtok[2], AXP_REG_T10); | |
3630 | assemble_tokens (extXh_op[lgsize], newtok, 3, 1); | |
3631 | ||
3632 | /* emit "or $t9, $t10, targ" */ | |
3633 | ||
3634 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3635 | set_tok_reg (newtok[1], AXP_REG_T10); | |
3636 | newtok[2] = tok[0]; | |
3637 | assemble_tokens ("or", newtok, 3, 1); | |
3638 | } | |
3639 | ||
3640 | /* Load an integral value from an unaligned address as a signed value. | |
3641 | Note that quads should get funneled to the unsigned load since we | |
3642 | don't have to do the sign extension. */ | |
3643 | ||
3644 | static void | |
3645 | emit_uldX (tok, ntok, vlgsize) | |
3646 | const expressionS *tok; | |
3647 | int ntok; | |
3648 | const PTR vlgsize; | |
3649 | { | |
3650 | emit_uldXu (tok, ntok, vlgsize); | |
32ff5c2e | 3651 | assemble_tokens (sextX_op[(long) vlgsize], tok, 1, 1); |
252b5132 RH |
3652 | } |
3653 | ||
3654 | /* Implement the ldil macro. */ | |
3655 | ||
3656 | static void | |
3657 | emit_ldil (tok, ntok, unused) | |
3658 | const expressionS *tok; | |
3659 | int ntok; | |
446a06c9 | 3660 | const PTR unused ATTRIBUTE_UNUSED; |
252b5132 RH |
3661 | { |
3662 | expressionS newtok[2]; | |
3663 | ||
bc805888 | 3664 | memcpy (newtok, tok, sizeof (newtok)); |
252b5132 RH |
3665 | newtok[1].X_add_number = sign_extend_32 (tok[1].X_add_number); |
3666 | ||
3667 | assemble_tokens ("lda", newtok, ntok, 1); | |
3668 | } | |
3669 | ||
3670 | /* Store a half-word or byte. */ | |
3671 | ||
3672 | static void | |
3673 | emit_stX (tok, ntok, vlgsize) | |
3674 | const expressionS *tok; | |
3675 | int ntok; | |
3676 | const PTR vlgsize; | |
3677 | { | |
32ff5c2e | 3678 | int lgsize = (int) (long) vlgsize; |
252b5132 RH |
3679 | |
3680 | if (alpha_target & AXP_OPCODE_BWX) | |
3681 | emit_loadstore (tok, ntok, stX_op[lgsize]); | |
3682 | else | |
3683 | { | |
3684 | expressionS newtok[3]; | |
19f78583 RH |
3685 | struct alpha_insn insn; |
3686 | int basereg; | |
3687 | long lituse; | |
252b5132 RH |
3688 | |
3689 | if (alpha_noat_on) | |
32ff5c2e | 3690 | as_bad (_("macro requires $at register while noat in effect")); |
252b5132 | 3691 | |
19f78583 RH |
3692 | if (ntok == 2) |
3693 | basereg = (tok[1].X_op == O_constant | |
3694 | ? AXP_REG_ZERO : alpha_gp_register); | |
3695 | else | |
3696 | basereg = tok[2].X_add_number; | |
3697 | ||
252b5132 RH |
3698 | /* emit "lda $at, exp" */ |
3699 | ||
19f78583 | 3700 | lituse = load_expression (AXP_REG_AT, &tok[1], &basereg, NULL); |
252b5132 RH |
3701 | |
3702 | /* emit "ldq_u $t9, 0($at)" */ | |
3703 | ||
3704 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3705 | set_tok_const (newtok[1], 0); | |
19f78583 RH |
3706 | set_tok_preg (newtok[2], basereg); |
3707 | assemble_tokens_to_insn ("ldq_u", newtok, 3, &insn); | |
3708 | ||
3709 | if (lituse) | |
3710 | { | |
3711 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
3712 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BASE; | |
3713 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
3714 | insn.nfixups++; | |
3715 | insn.sequence = lituse; | |
3716 | } | |
3717 | ||
3718 | emit_insn (&insn); | |
252b5132 RH |
3719 | |
3720 | /* emit "insXl src, $at, $t10" */ | |
3721 | ||
3722 | newtok[0] = tok[0]; | |
19f78583 | 3723 | set_tok_reg (newtok[1], basereg); |
252b5132 | 3724 | set_tok_reg (newtok[2], AXP_REG_T10); |
19f78583 RH |
3725 | assemble_tokens_to_insn (insXl_op[lgsize], newtok, 3, &insn); |
3726 | ||
3727 | if (lituse) | |
3728 | { | |
3729 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
3730 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BYTOFF; | |
3731 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
3732 | insn.nfixups++; | |
3733 | insn.sequence = lituse; | |
3734 | } | |
3735 | ||
3736 | emit_insn (&insn); | |
252b5132 RH |
3737 | |
3738 | /* emit "mskXl $t9, $at, $t9" */ | |
3739 | ||
3740 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3741 | newtok[2] = newtok[0]; | |
19f78583 RH |
3742 | assemble_tokens_to_insn (mskXl_op[lgsize], newtok, 3, &insn); |
3743 | ||
3744 | if (lituse) | |
3745 | { | |
3746 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
3747 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BYTOFF; | |
3748 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
3749 | insn.nfixups++; | |
3750 | insn.sequence = lituse; | |
3751 | } | |
3752 | ||
3753 | emit_insn (&insn); | |
252b5132 RH |
3754 | |
3755 | /* emit "or $t9, $t10, $t9" */ | |
3756 | ||
3757 | set_tok_reg (newtok[1], AXP_REG_T10); | |
3758 | assemble_tokens ("or", newtok, 3, 1); | |
3759 | ||
3760 | /* emit "stq_u $t9, 0($at) */ | |
3761 | ||
19f78583 | 3762 | set_tok_const(newtok[1], 0); |
252b5132 | 3763 | set_tok_preg (newtok[2], AXP_REG_AT); |
19f78583 RH |
3764 | assemble_tokens_to_insn ("stq_u", newtok, 3, &insn); |
3765 | ||
3766 | if (lituse) | |
3767 | { | |
3768 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
3769 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_BASE; | |
3770 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
3771 | insn.nfixups++; | |
3772 | insn.sequence = lituse; | |
3773 | } | |
3774 | ||
3775 | emit_insn (&insn); | |
252b5132 RH |
3776 | } |
3777 | } | |
3778 | ||
3779 | /* Store an integer to an unaligned address. */ | |
3780 | ||
3781 | static void | |
3782 | emit_ustX (tok, ntok, vlgsize) | |
3783 | const expressionS *tok; | |
3784 | int ntok; | |
3785 | const PTR vlgsize; | |
3786 | { | |
32ff5c2e | 3787 | int lgsize = (int) (long) vlgsize; |
252b5132 RH |
3788 | expressionS newtok[3]; |
3789 | ||
3790 | /* emit "lda $at, exp" */ | |
3791 | ||
3792 | memcpy (newtok, tok, sizeof (expressionS) * ntok); | |
3793 | newtok[0].X_add_number = AXP_REG_AT; | |
3794 | assemble_tokens ("lda", newtok, ntok, 1); | |
3795 | ||
3796 | /* emit "ldq_u $9, 0($at)" */ | |
3797 | ||
3798 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3799 | set_tok_const (newtok[1], 0); | |
3800 | set_tok_preg (newtok[2], AXP_REG_AT); | |
3801 | assemble_tokens ("ldq_u", newtok, 3, 1); | |
3802 | ||
3803 | /* emit "ldq_u $10, size-1($at)" */ | |
3804 | ||
3805 | set_tok_reg (newtok[0], AXP_REG_T10); | |
66498417 | 3806 | set_tok_const (newtok[1], (1 << lgsize) - 1); |
252b5132 RH |
3807 | assemble_tokens ("ldq_u", newtok, 3, 1); |
3808 | ||
3809 | /* emit "insXl src, $at, $t11" */ | |
3810 | ||
3811 | newtok[0] = tok[0]; | |
3812 | set_tok_reg (newtok[1], AXP_REG_AT); | |
3813 | set_tok_reg (newtok[2], AXP_REG_T11); | |
3814 | assemble_tokens (insXl_op[lgsize], newtok, 3, 1); | |
3815 | ||
3816 | /* emit "insXh src, $at, $t12" */ | |
3817 | ||
3818 | set_tok_reg (newtok[2], AXP_REG_T12); | |
3819 | assemble_tokens (insXh_op[lgsize], newtok, 3, 1); | |
3820 | ||
3821 | /* emit "mskXl $t9, $at, $t9" */ | |
3822 | ||
3823 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3824 | newtok[2] = newtok[0]; | |
3825 | assemble_tokens (mskXl_op[lgsize], newtok, 3, 1); | |
3826 | ||
3827 | /* emit "mskXh $t10, $at, $t10" */ | |
3828 | ||
3829 | set_tok_reg (newtok[0], AXP_REG_T10); | |
3830 | newtok[2] = newtok[0]; | |
3831 | assemble_tokens (mskXh_op[lgsize], newtok, 3, 1); | |
3832 | ||
3833 | /* emit "or $t9, $t11, $t9" */ | |
3834 | ||
3835 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3836 | set_tok_reg (newtok[1], AXP_REG_T11); | |
3837 | newtok[2] = newtok[0]; | |
3838 | assemble_tokens ("or", newtok, 3, 1); | |
3839 | ||
3840 | /* emit "or $t10, $t12, $t10" */ | |
3841 | ||
3842 | set_tok_reg (newtok[0], AXP_REG_T10); | |
3843 | set_tok_reg (newtok[1], AXP_REG_T12); | |
3844 | newtok[2] = newtok[0]; | |
3845 | assemble_tokens ("or", newtok, 3, 1); | |
3846 | ||
3847 | /* emit "stq_u $t9, 0($at)" */ | |
3848 | ||
3849 | set_tok_reg (newtok[0], AXP_REG_T9); | |
3850 | set_tok_const (newtok[1], 0); | |
3851 | set_tok_preg (newtok[2], AXP_REG_AT); | |
3852 | assemble_tokens ("stq_u", newtok, 3, 1); | |
3853 | ||
3854 | /* emit "stq_u $t10, size-1($at)" */ | |
3855 | ||
3856 | set_tok_reg (newtok[0], AXP_REG_T10); | |
66498417 | 3857 | set_tok_const (newtok[1], (1 << lgsize) - 1); |
252b5132 RH |
3858 | assemble_tokens ("stq_u", newtok, 3, 1); |
3859 | } | |
3860 | ||
3861 | /* Sign extend a half-word or byte. The 32-bit sign extend is | |
3862 | implemented as "addl $31, $r, $t" in the opcode table. */ | |
3863 | ||
3864 | static void | |
3865 | emit_sextX (tok, ntok, vlgsize) | |
3866 | const expressionS *tok; | |
3867 | int ntok; | |
3868 | const PTR vlgsize; | |
3869 | { | |
32ff5c2e | 3870 | long lgsize = (long) vlgsize; |
252b5132 RH |
3871 | |
3872 | if (alpha_target & AXP_OPCODE_BWX) | |
3873 | assemble_tokens (sextX_op[lgsize], tok, ntok, 0); | |
3874 | else | |
3875 | { | |
3876 | int bitshift = 64 - 8 * (1 << lgsize); | |
3877 | expressionS newtok[3]; | |
3878 | ||
3879 | /* emit "sll src,bits,dst" */ | |
3880 | ||
3881 | newtok[0] = tok[0]; | |
3882 | set_tok_const (newtok[1], bitshift); | |
3883 | newtok[2] = tok[ntok - 1]; | |
3884 | assemble_tokens ("sll", newtok, 3, 1); | |
3885 | ||
3886 | /* emit "sra dst,bits,dst" */ | |
3887 | ||
3888 | newtok[0] = newtok[2]; | |
3889 | assemble_tokens ("sra", newtok, 3, 1); | |
3890 | } | |
3891 | } | |
3892 | ||
3893 | /* Implement the division and modulus macros. */ | |
3894 | ||
3895 | #ifdef OBJ_EVAX | |
3896 | ||
3897 | /* Make register usage like in normal procedure call. | |
3898 | Don't clobber PV and RA. */ | |
3899 | ||
3900 | static void | |
3901 | emit_division (tok, ntok, symname) | |
3902 | const expressionS *tok; | |
3903 | int ntok; | |
3904 | const PTR symname; | |
3905 | { | |
3906 | /* DIVISION and MODULUS. Yech. | |
3907 | * | |
3908 | * Convert | |
3909 | * OP x,y,result | |
3910 | * to | |
3911 | * mov x,R16 # if x != R16 | |
3912 | * mov y,R17 # if y != R17 | |
3913 | * lda AT,__OP | |
3914 | * jsr AT,(AT),0 | |
3915 | * mov R0,result | |
3916 | * | |
3917 | * with appropriate optimizations if R0,R16,R17 are the registers | |
3918 | * specified by the compiler. | |
3919 | */ | |
3920 | ||
3921 | int xr, yr, rr; | |
3922 | symbolS *sym; | |
3923 | expressionS newtok[3]; | |
3924 | ||
3925 | xr = regno (tok[0].X_add_number); | |
3926 | yr = regno (tok[1].X_add_number); | |
3927 | ||
3928 | if (ntok < 3) | |
3929 | rr = xr; | |
3930 | else | |
3931 | rr = regno (tok[2].X_add_number); | |
3932 | ||
3933 | /* Move the operands into the right place */ | |
3934 | if (yr == AXP_REG_R16 && xr == AXP_REG_R17) | |
3935 | { | |
3936 | /* They are in exactly the wrong order -- swap through AT */ | |
3937 | ||
3938 | if (alpha_noat_on) | |
3939 | as_bad (_("macro requires $at register while noat in effect")); | |
3940 | ||
3941 | set_tok_reg (newtok[0], AXP_REG_R16); | |
3942 | set_tok_reg (newtok[1], AXP_REG_AT); | |
3943 | assemble_tokens ("mov", newtok, 2, 1); | |
3944 | ||
3945 | set_tok_reg (newtok[0], AXP_REG_R17); | |
3946 | set_tok_reg (newtok[1], AXP_REG_R16); | |
3947 | assemble_tokens ("mov", newtok, 2, 1); | |
3948 | ||
3949 | set_tok_reg (newtok[0], AXP_REG_AT); | |
3950 | set_tok_reg (newtok[1], AXP_REG_R17); | |
3951 | assemble_tokens ("mov", newtok, 2, 1); | |
3952 | } | |
3953 | else | |
3954 | { | |
3955 | if (yr == AXP_REG_R16) | |
3956 | { | |
3957 | set_tok_reg (newtok[0], AXP_REG_R16); | |
3958 | set_tok_reg (newtok[1], AXP_REG_R17); | |
3959 | assemble_tokens ("mov", newtok, 2, 1); | |
3960 | } | |
3961 | ||
3962 | if (xr != AXP_REG_R16) | |
3963 | { | |
3964 | set_tok_reg (newtok[0], xr); | |
3965 | set_tok_reg (newtok[1], AXP_REG_R16); | |
1aad8cf8 | 3966 | assemble_tokens ("mov", newtok, 2, 1); |
252b5132 RH |
3967 | } |
3968 | ||
3969 | if (yr != AXP_REG_R16 && yr != AXP_REG_R17) | |
3970 | { | |
3971 | set_tok_reg (newtok[0], yr); | |
3972 | set_tok_reg (newtok[1], AXP_REG_R17); | |
3973 | assemble_tokens ("mov", newtok, 2, 1); | |
3974 | } | |
3975 | } | |
3976 | ||
32ff5c2e | 3977 | sym = symbol_find_or_make ((const char *) symname); |
252b5132 RH |
3978 | |
3979 | set_tok_reg (newtok[0], AXP_REG_AT); | |
3980 | set_tok_sym (newtok[1], sym, 0); | |
3981 | assemble_tokens ("lda", newtok, 2, 1); | |
3982 | ||
3983 | /* Call the division routine */ | |
3984 | set_tok_reg (newtok[0], AXP_REG_AT); | |
3985 | set_tok_cpreg (newtok[1], AXP_REG_AT); | |
3986 | set_tok_const (newtok[2], 0); | |
3987 | assemble_tokens ("jsr", newtok, 3, 1); | |
3988 | ||
3989 | /* Move the result to the right place */ | |
3990 | if (rr != AXP_REG_R0) | |
3991 | { | |
3992 | set_tok_reg (newtok[0], AXP_REG_R0); | |
3993 | set_tok_reg (newtok[1], rr); | |
3994 | assemble_tokens ("mov", newtok, 2, 1); | |
3995 | } | |
3996 | } | |
3997 | ||
3998 | #else /* !OBJ_EVAX */ | |
3999 | ||
4000 | static void | |
4001 | emit_division (tok, ntok, symname) | |
4002 | const expressionS *tok; | |
4003 | int ntok; | |
4004 | const PTR symname; | |
4005 | { | |
4006 | /* DIVISION and MODULUS. Yech. | |
4007 | * Convert | |
4008 | * OP x,y,result | |
4009 | * to | |
4010 | * lda pv,__OP | |
4011 | * mov x,t10 | |
4012 | * mov y,t11 | |
4013 | * jsr t9,(pv),__OP | |
4014 | * mov t12,result | |
4015 | * | |
4016 | * with appropriate optimizations if t10,t11,t12 are the registers | |
4017 | * specified by the compiler. | |
4018 | */ | |
4019 | ||
4020 | int xr, yr, rr; | |
4021 | symbolS *sym; | |
4022 | expressionS newtok[3]; | |
4023 | ||
4024 | xr = regno (tok[0].X_add_number); | |
4025 | yr = regno (tok[1].X_add_number); | |
4026 | ||
4027 | if (ntok < 3) | |
4028 | rr = xr; | |
4029 | else | |
4030 | rr = regno (tok[2].X_add_number); | |
4031 | ||
32ff5c2e | 4032 | sym = symbol_find_or_make ((const char *) symname); |
252b5132 RH |
4033 | |
4034 | /* Move the operands into the right place */ | |
4035 | if (yr == AXP_REG_T10 && xr == AXP_REG_T11) | |
4036 | { | |
4037 | /* They are in exactly the wrong order -- swap through AT */ | |
4038 | ||
4039 | if (alpha_noat_on) | |
4040 | as_bad (_("macro requires $at register while noat in effect")); | |
4041 | ||
4042 | set_tok_reg (newtok[0], AXP_REG_T10); | |
4043 | set_tok_reg (newtok[1], AXP_REG_AT); | |
4044 | assemble_tokens ("mov", newtok, 2, 1); | |
4045 | ||
4046 | set_tok_reg (newtok[0], AXP_REG_T11); | |
4047 | set_tok_reg (newtok[1], AXP_REG_T10); | |
4048 | assemble_tokens ("mov", newtok, 2, 1); | |
4049 | ||
4050 | set_tok_reg (newtok[0], AXP_REG_AT); | |
4051 | set_tok_reg (newtok[1], AXP_REG_T11); | |
4052 | assemble_tokens ("mov", newtok, 2, 1); | |
4053 | } | |
4054 | else | |
4055 | { | |
4056 | if (yr == AXP_REG_T10) | |
4057 | { | |
4058 | set_tok_reg (newtok[0], AXP_REG_T10); | |
4059 | set_tok_reg (newtok[1], AXP_REG_T11); | |
4060 | assemble_tokens ("mov", newtok, 2, 1); | |
4061 | } | |
4062 | ||
4063 | if (xr != AXP_REG_T10) | |
4064 | { | |
4065 | set_tok_reg (newtok[0], xr); | |
4066 | set_tok_reg (newtok[1], AXP_REG_T10); | |
1aad8cf8 | 4067 | assemble_tokens ("mov", newtok, 2, 1); |
252b5132 RH |
4068 | } |
4069 | ||
4070 | if (yr != AXP_REG_T10 && yr != AXP_REG_T11) | |
4071 | { | |
4072 | set_tok_reg (newtok[0], yr); | |
4073 | set_tok_reg (newtok[1], AXP_REG_T11); | |
4074 | assemble_tokens ("mov", newtok, 2, 1); | |
4075 | } | |
4076 | } | |
4077 | ||
4078 | /* Call the division routine */ | |
4079 | set_tok_reg (newtok[0], AXP_REG_T9); | |
4080 | set_tok_sym (newtok[1], sym, 0); | |
4081 | assemble_tokens ("jsr", newtok, 2, 1); | |
4082 | ||
4083 | /* Reload the GP register */ | |
4084 | #ifdef OBJ_AOUT | |
4085 | FIXME | |
4086 | #endif | |
4087 | #if defined(OBJ_ECOFF) || defined(OBJ_ELF) | |
4088 | set_tok_reg (newtok[0], alpha_gp_register); | |
4089 | set_tok_const (newtok[1], 0); | |
4090 | set_tok_preg (newtok[2], AXP_REG_T9); | |
4091 | assemble_tokens ("ldgp", newtok, 3, 1); | |
4092 | #endif | |
4093 | ||
4094 | /* Move the result to the right place */ | |
4095 | if (rr != AXP_REG_T12) | |
4096 | { | |
4097 | set_tok_reg (newtok[0], AXP_REG_T12); | |
4098 | set_tok_reg (newtok[1], rr); | |
4099 | assemble_tokens ("mov", newtok, 2, 1); | |
4100 | } | |
4101 | } | |
4102 | ||
4103 | #endif /* !OBJ_EVAX */ | |
4104 | ||
4105 | /* The jsr and jmp macros differ from their instruction counterparts | |
4106 | in that they can load the target address and default most | |
4107 | everything. */ | |
4108 | ||
4109 | static void | |
4110 | emit_jsrjmp (tok, ntok, vopname) | |
4111 | const expressionS *tok; | |
4112 | int ntok; | |
4113 | const PTR vopname; | |
4114 | { | |
4115 | const char *opname = (const char *) vopname; | |
4116 | struct alpha_insn insn; | |
4117 | expressionS newtok[3]; | |
19f78583 RH |
4118 | int r, tokidx = 0; |
4119 | long lituse = 0; | |
43b4c25e | 4120 | |
252b5132 RH |
4121 | if (tokidx < ntok && tok[tokidx].X_op == O_register) |
4122 | r = regno (tok[tokidx++].X_add_number); | |
4123 | else | |
4124 | r = strcmp (opname, "jmp") == 0 ? AXP_REG_ZERO : AXP_REG_RA; | |
4125 | ||
4126 | set_tok_reg (newtok[0], r); | |
4127 | ||
4128 | if (tokidx < ntok && | |
4129 | (tok[tokidx].X_op == O_pregister || tok[tokidx].X_op == O_cpregister)) | |
4130 | r = regno (tok[tokidx++].X_add_number); | |
4131 | #ifdef OBJ_EVAX | |
4132 | /* keep register if jsr $n.<sym> */ | |
4133 | #else | |
4134 | else | |
4135 | { | |
4136 | int basereg = alpha_gp_register; | |
19f78583 | 4137 | lituse = load_expression (r = AXP_REG_PV, &tok[tokidx], &basereg, NULL); |
252b5132 RH |
4138 | } |
4139 | #endif | |
4140 | ||
4141 | set_tok_cpreg (newtok[1], r); | |
4142 | ||
4143 | #ifdef OBJ_EVAX | |
4144 | /* FIXME: Add hint relocs to BFD for evax. */ | |
4145 | #else | |
4146 | if (tokidx < ntok) | |
4147 | newtok[2] = tok[tokidx]; | |
4148 | else | |
4149 | #endif | |
4150 | set_tok_const (newtok[2], 0); | |
4151 | ||
4152 | assemble_tokens_to_insn (opname, newtok, 3, &insn); | |
4153 | ||
252b5132 RH |
4154 | if (lituse) |
4155 | { | |
4156 | assert (insn.nfixups < MAX_INSN_FIXUPS); | |
19f78583 RH |
4157 | insn.fixups[insn.nfixups].reloc = DUMMY_RELOC_LITUSE_JSR; |
4158 | insn.fixups[insn.nfixups].exp.X_op = O_absent; | |
252b5132 | 4159 | insn.nfixups++; |
19f78583 | 4160 | insn.sequence = lituse; |
252b5132 RH |
4161 | } |
4162 | ||
4163 | emit_insn (&insn); | |
4164 | } | |
4165 | ||
4166 | /* The ret and jcr instructions differ from their instruction | |
4167 | counterparts in that everything can be defaulted. */ | |
4168 | ||
4169 | static void | |
4170 | emit_retjcr (tok, ntok, vopname) | |
4171 | const expressionS *tok; | |
4172 | int ntok; | |
4173 | const PTR vopname; | |
4174 | { | |
32ff5c2e | 4175 | const char *opname = (const char *) vopname; |
252b5132 RH |
4176 | expressionS newtok[3]; |
4177 | int r, tokidx = 0; | |
4178 | ||
4179 | if (tokidx < ntok && tok[tokidx].X_op == O_register) | |
4180 | r = regno (tok[tokidx++].X_add_number); | |
4181 | else | |
4182 | r = AXP_REG_ZERO; | |
4183 | ||
4184 | set_tok_reg (newtok[0], r); | |
4185 | ||
4186 | if (tokidx < ntok && | |
4187 | (tok[tokidx].X_op == O_pregister || tok[tokidx].X_op == O_cpregister)) | |
4188 | r = regno (tok[tokidx++].X_add_number); | |
4189 | else | |
4190 | r = AXP_REG_RA; | |
4191 | ||
4192 | set_tok_cpreg (newtok[1], r); | |
4193 | ||
4194 | if (tokidx < ntok) | |
4195 | newtok[2] = tok[tokidx]; | |
4196 | else | |
32ff5c2e | 4197 | set_tok_const (newtok[2], strcmp (opname, "ret") == 0); |
252b5132 RH |
4198 | |
4199 | assemble_tokens (opname, newtok, 3, 0); | |
4200 | } | |
4201 | \f | |
4202 | /* Assembler directives */ | |
4203 | ||
4204 | /* Handle the .text pseudo-op. This is like the usual one, but it | |
4205 | clears alpha_insn_label and restores auto alignment. */ | |
4206 | ||
4207 | static void | |
4208 | s_alpha_text (i) | |
4209 | int i; | |
4210 | ||
4211 | { | |
559e22f3 JJ |
4212 | #ifdef OBJ_ELF |
4213 | obj_elf_text (i); | |
4214 | #else | |
252b5132 | 4215 | s_text (i); |
559e22f3 | 4216 | #endif |
252b5132 RH |
4217 | alpha_insn_label = NULL; |
4218 | alpha_auto_align_on = 1; | |
4219 | alpha_current_align = 0; | |
4220 | } | |
4221 | ||
4222 | /* Handle the .data pseudo-op. This is like the usual one, but it | |
4223 | clears alpha_insn_label and restores auto alignment. */ | |
4224 | ||
4225 | static void | |
4226 | s_alpha_data (i) | |
4227 | int i; | |
4228 | { | |
559e22f3 JJ |
4229 | #ifdef OBJ_ELF |
4230 | obj_elf_data (i); | |
4231 | #else | |
252b5132 | 4232 | s_data (i); |
559e22f3 | 4233 | #endif |
252b5132 RH |
4234 | alpha_insn_label = NULL; |
4235 | alpha_auto_align_on = 1; | |
4236 | alpha_current_align = 0; | |
4237 | } | |
4238 | ||
4239 | #if defined (OBJ_ECOFF) || defined (OBJ_EVAX) | |
4240 | ||
4241 | /* Handle the OSF/1 and openVMS .comm pseudo quirks. | |
4242 | openVMS constructs a section for every common symbol. */ | |
4243 | ||
4244 | static void | |
4245 | s_alpha_comm (ignore) | |
4246 | int ignore; | |
4247 | { | |
4248 | register char *name; | |
4249 | register char c; | |
4250 | register char *p; | |
4251 | offsetT temp; | |
4252 | register symbolS *symbolP; | |
4253 | ||
4254 | #ifdef OBJ_EVAX | |
4255 | segT current_section = now_seg; | |
4256 | int current_subsec = now_subseg; | |
4257 | segT new_seg; | |
4258 | #endif | |
4259 | ||
4260 | name = input_line_pointer; | |
4261 | c = get_symbol_end (); | |
4262 | ||
4263 | /* just after name is now '\0' */ | |
4264 | p = input_line_pointer; | |
4265 | *p = c; | |
4266 | ||
4267 | SKIP_WHITESPACE (); | |
4268 | ||
4269 | /* Alpha OSF/1 compiler doesn't provide the comma, gcc does. */ | |
4270 | if (*input_line_pointer == ',') | |
4271 | { | |
4272 | input_line_pointer++; | |
4273 | SKIP_WHITESPACE (); | |
4274 | } | |
4275 | if ((temp = get_absolute_expression ()) < 0) | |
4276 | { | |
4277 | as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp); | |
4278 | ignore_rest_of_line (); | |
4279 | return; | |
4280 | } | |
4281 | ||
4282 | *p = 0; | |
4283 | symbolP = symbol_find_or_make (name); | |
4284 | ||
4285 | #ifdef OBJ_EVAX | |
4286 | /* Make a section for the common symbol. */ | |
4287 | new_seg = subseg_new (xstrdup (name), 0); | |
4288 | #endif | |
4289 | ||
4290 | *p = c; | |
4291 | ||
4292 | #ifdef OBJ_EVAX | |
4293 | /* alignment might follow */ | |
4294 | if (*input_line_pointer == ',') | |
4295 | { | |
4296 | offsetT align; | |
4297 | ||
1dab94dd | 4298 | input_line_pointer++; |
252b5132 RH |
4299 | align = get_absolute_expression (); |
4300 | bfd_set_section_alignment (stdoutput, new_seg, align); | |
4301 | } | |
4302 | #endif | |
4303 | ||
4304 | if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP)) | |
4305 | { | |
4306 | as_bad (_("Ignoring attempt to re-define symbol")); | |
4307 | ignore_rest_of_line (); | |
4308 | return; | |
4309 | } | |
4310 | ||
4311 | #ifdef OBJ_EVAX | |
4312 | if (bfd_section_size (stdoutput, new_seg) > 0) | |
1dab94dd | 4313 | { |
252b5132 RH |
4314 | if (bfd_section_size (stdoutput, new_seg) != temp) |
4315 | as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."), | |
4316 | S_GET_NAME (symbolP), | |
4317 | (long) bfd_section_size (stdoutput, new_seg), | |
4318 | (long) temp); | |
4319 | } | |
4320 | #else | |
4321 | if (S_GET_VALUE (symbolP)) | |
4322 | { | |
4323 | if (S_GET_VALUE (symbolP) != (valueT) temp) | |
4324 | as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."), | |
4325 | S_GET_NAME (symbolP), | |
4326 | (long) S_GET_VALUE (symbolP), | |
4327 | (long) temp); | |
4328 | } | |
4329 | #endif | |
4330 | else | |
4331 | { | |
1dab94dd | 4332 | #ifdef OBJ_EVAX |
252b5132 RH |
4333 | subseg_set (new_seg, 0); |
4334 | p = frag_more (temp); | |
4335 | new_seg->flags |= SEC_IS_COMMON; | |
4336 | if (! S_IS_DEFINED (symbolP)) | |
9de8d8f1 | 4337 | S_SET_SEGMENT (symbolP, new_seg); |
252b5132 RH |
4338 | #else |
4339 | S_SET_VALUE (symbolP, (valueT) temp); | |
4340 | #endif | |
4341 | S_SET_EXTERNAL (symbolP); | |
4342 | } | |
4343 | ||
4344 | #ifdef OBJ_EVAX | |
4345 | subseg_set (current_section, current_subsec); | |
4346 | #endif | |
4347 | ||
7dcc9865 | 4348 | know (symbol_get_frag (symbolP) == &zero_address_frag); |
252b5132 RH |
4349 | |
4350 | demand_empty_rest_of_line (); | |
4351 | } | |
4352 | ||
4353 | #endif /* ! OBJ_ELF */ | |
4354 | ||
4355 | #ifdef OBJ_ECOFF | |
4356 | ||
4357 | /* Handle the .rdata pseudo-op. This is like the usual one, but it | |
4358 | clears alpha_insn_label and restores auto alignment. */ | |
4359 | ||
4360 | static void | |
4361 | s_alpha_rdata (ignore) | |
4362 | int ignore; | |
4363 | { | |
4364 | int temp; | |
4365 | ||
4366 | temp = get_absolute_expression (); | |
4367 | subseg_new (".rdata", 0); | |
4368 | demand_empty_rest_of_line (); | |
4369 | alpha_insn_label = NULL; | |
4370 | alpha_auto_align_on = 1; | |
4371 | alpha_current_align = 0; | |
4372 | } | |
4373 | ||
4374 | #endif | |
4375 | ||
4376 | #ifdef OBJ_ECOFF | |
4377 | ||
4378 | /* Handle the .sdata pseudo-op. This is like the usual one, but it | |
4379 | clears alpha_insn_label and restores auto alignment. */ | |
4380 | ||
4381 | static void | |
4382 | s_alpha_sdata (ignore) | |
4383 | int ignore; | |
4384 | { | |
4385 | int temp; | |
4386 | ||
4387 | temp = get_absolute_expression (); | |
4388 | subseg_new (".sdata", 0); | |
4389 | demand_empty_rest_of_line (); | |
4390 | alpha_insn_label = NULL; | |
4391 | alpha_auto_align_on = 1; | |
4392 | alpha_current_align = 0; | |
4393 | } | |
4394 | #endif | |
4395 | ||
4396 | #ifdef OBJ_ELF | |
4397 | ||
4398 | /* Handle the .section pseudo-op. This is like the usual one, but it | |
4399 | clears alpha_insn_label and restores auto alignment. */ | |
4400 | ||
4401 | static void | |
4402 | s_alpha_section (ignore) | |
4403 | int ignore; | |
4404 | { | |
4405 | obj_elf_section (ignore); | |
4406 | ||
4407 | alpha_insn_label = NULL; | |
4408 | alpha_auto_align_on = 1; | |
4409 | alpha_current_align = 0; | |
4410 | } | |
4411 | ||
4412 | static void | |
4413 | s_alpha_ent (dummy) | |
446a06c9 | 4414 | int dummy ATTRIBUTE_UNUSED; |
252b5132 RH |
4415 | { |
4416 | if (ECOFF_DEBUGGING) | |
4417 | ecoff_directive_ent (0); | |
4418 | else | |
4419 | { | |
4420 | char *name, name_end; | |
4421 | name = input_line_pointer; | |
4422 | name_end = get_symbol_end (); | |
4423 | ||
4424 | if (! is_name_beginner (*name)) | |
4425 | { | |
4426 | as_warn (_(".ent directive has no name")); | |
4427 | *input_line_pointer = name_end; | |
4428 | } | |
4429 | else | |
4430 | { | |
4431 | symbolS *sym; | |
4432 | ||
4433 | if (alpha_cur_ent_sym) | |
4434 | as_warn (_("nested .ent directives")); | |
4435 | ||
4436 | sym = symbol_find_or_make (name); | |
49309057 | 4437 | symbol_get_bfdsym (sym)->flags |= BSF_FUNCTION; |
252b5132 RH |
4438 | alpha_cur_ent_sym = sym; |
4439 | ||
4440 | /* The .ent directive is sometimes followed by a number. Not sure | |
4441 | what it really means, but ignore it. */ | |
4442 | *input_line_pointer = name_end; | |
4443 | SKIP_WHITESPACE (); | |
4444 | if (*input_line_pointer == ',') | |
4445 | { | |
4446 | input_line_pointer++; | |
4447 | SKIP_WHITESPACE (); | |
4448 | } | |
3882b010 | 4449 | if (ISDIGIT (*input_line_pointer) || *input_line_pointer == '-') |
252b5132 RH |
4450 | (void) get_absolute_expression (); |
4451 | } | |
4452 | demand_empty_rest_of_line (); | |
4453 | } | |
4454 | } | |
4455 | ||
4456 | static void | |
4457 | s_alpha_end (dummy) | |
446a06c9 | 4458 | int dummy ATTRIBUTE_UNUSED; |
252b5132 RH |
4459 | { |
4460 | if (ECOFF_DEBUGGING) | |
4461 | ecoff_directive_end (0); | |
4462 | else | |
4463 | { | |
4464 | char *name, name_end; | |
4465 | name = input_line_pointer; | |
4466 | name_end = get_symbol_end (); | |
4467 | ||
4468 | if (! is_name_beginner (*name)) | |
4469 | { | |
4470 | as_warn (_(".end directive has no name")); | |
4471 | *input_line_pointer = name_end; | |
4472 | } | |
4473 | else | |
4474 | { | |
4475 | symbolS *sym; | |
4476 | ||
4477 | sym = symbol_find (name); | |
4478 | if (sym != alpha_cur_ent_sym) | |
4479 | as_warn (_(".end directive names different symbol than .ent")); | |
4480 | ||
4481 | /* Create an expression to calculate the size of the function. */ | |
4482 | if (sym) | |
4483 | { | |
49309057 ILT |
4484 | symbol_get_obj (sym)->size = |
4485 | (expressionS *) xmalloc (sizeof (expressionS)); | |
4486 | symbol_get_obj (sym)->size->X_op = O_subtract; | |
4487 | symbol_get_obj (sym)->size->X_add_symbol | |
66498417 | 4488 | = symbol_new ("L0\001", now_seg, frag_now_fix (), frag_now); |
49309057 ILT |
4489 | symbol_get_obj (sym)->size->X_op_symbol = sym; |
4490 | symbol_get_obj (sym)->size->X_add_number = 0; | |
252b5132 RH |
4491 | } |
4492 | ||
4493 | alpha_cur_ent_sym = NULL; | |
4494 | ||
4495 | *input_line_pointer = name_end; | |
4496 | } | |
4497 | demand_empty_rest_of_line (); | |
4498 | } | |
4499 | } | |
4500 | ||
4501 | static void | |
4502 | s_alpha_mask (fp) | |
4503 | int fp; | |
4504 | { | |
4505 | if (ECOFF_DEBUGGING) | |
4506 | { | |
4507 | if (fp) | |
1aad8cf8 | 4508 | ecoff_directive_fmask (0); |
252b5132 | 4509 | else |
1aad8cf8 | 4510 | ecoff_directive_mask (0); |
252b5132 RH |
4511 | } |
4512 | else | |
4513 | discard_rest_of_line (); | |
4514 | } | |
4515 | ||
4516 | static void | |
4517 | s_alpha_frame (dummy) | |
446a06c9 | 4518 | int dummy ATTRIBUTE_UNUSED; |
252b5132 RH |
4519 | { |
4520 | if (ECOFF_DEBUGGING) | |
4521 | ecoff_directive_frame (0); | |
4522 | else | |
4523 | discard_rest_of_line (); | |
4524 | } | |
4525 | ||
4526 | static void | |
4527 | s_alpha_prologue (ignore) | |
446a06c9 | 4528 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4529 | { |
4530 | symbolS *sym; | |
4531 | int arg; | |
4532 | ||
4533 | arg = get_absolute_expression (); | |
4534 | demand_empty_rest_of_line (); | |
4535 | ||
4536 | if (ECOFF_DEBUGGING) | |
4537 | sym = ecoff_get_cur_proc_sym (); | |
4538 | else | |
4539 | sym = alpha_cur_ent_sym; | |
4540 | know (sym != NULL); | |
4541 | ||
4542 | switch (arg) | |
4543 | { | |
1aad8cf8 KH |
4544 | case 0: /* No PV required. */ |
4545 | S_SET_OTHER (sym, STO_ALPHA_NOPV | |
4546 | | (S_GET_OTHER (sym) & ~STO_ALPHA_STD_GPLOAD)); | |
4547 | break; | |
4548 | case 1: /* Std GP load. */ | |
4549 | S_SET_OTHER (sym, STO_ALPHA_STD_GPLOAD | |
4550 | | (S_GET_OTHER (sym) & ~STO_ALPHA_STD_GPLOAD)); | |
4551 | break; | |
4552 | case 2: /* Non-std use of PV. */ | |
4553 | break; | |
4554 | ||
4555 | default: | |
4556 | as_bad (_("Invalid argument %d to .prologue."), arg); | |
4557 | break; | |
1dab94dd | 4558 | } |
252b5132 RH |
4559 | } |
4560 | ||
66498417 | 4561 | static char *first_file_directive; |
a8316fe2 | 4562 | |
4dc7ead9 RH |
4563 | static void |
4564 | s_alpha_file (ignore) | |
4565 | int ignore ATTRIBUTE_UNUSED; | |
4566 | { | |
a8316fe2 RH |
4567 | /* Save the first .file directive we see, so that we can change our |
4568 | minds about whether ecoff debugging should or shouldn't be enabled. */ | |
4569 | if (alpha_flag_mdebug < 0 && ! first_file_directive) | |
4570 | { | |
4571 | char *start = input_line_pointer; | |
4572 | size_t len; | |
4573 | ||
4574 | discard_rest_of_line (); | |
4575 | ||
4576 | len = input_line_pointer - start; | |
4577 | first_file_directive = xmalloc (len + 1); | |
4578 | memcpy (first_file_directive, start, len); | |
4579 | first_file_directive[len] = '\0'; | |
4580 | ||
4581 | input_line_pointer = start; | |
4582 | } | |
4583 | ||
4dc7ead9 RH |
4584 | if (ECOFF_DEBUGGING) |
4585 | ecoff_directive_file (0); | |
4586 | else | |
4587 | dwarf2_directive_file (0); | |
4588 | } | |
4589 | ||
4590 | static void | |
4591 | s_alpha_loc (ignore) | |
4592 | int ignore ATTRIBUTE_UNUSED; | |
4593 | { | |
4594 | if (ECOFF_DEBUGGING) | |
4595 | ecoff_directive_loc (0); | |
4596 | else | |
4597 | dwarf2_directive_loc (0); | |
4598 | } | |
4599 | ||
a8316fe2 RH |
4600 | static void |
4601 | s_alpha_stab (n) | |
4602 | int n; | |
4603 | { | |
4604 | /* If we've been undecided about mdebug, make up our minds in favour. */ | |
4605 | if (alpha_flag_mdebug < 0) | |
4606 | { | |
32ff5c2e | 4607 | segT sec = subseg_new (".mdebug", 0); |
66498417 | 4608 | bfd_set_section_flags (stdoutput, sec, SEC_HAS_CONTENTS | SEC_READONLY); |
32ff5c2e | 4609 | bfd_set_section_alignment (stdoutput, sec, 3); |
a8316fe2 RH |
4610 | |
4611 | ecoff_read_begin_hook (); | |
4612 | ||
4613 | if (first_file_directive) | |
4614 | { | |
4615 | char *save_ilp = input_line_pointer; | |
66498417 | 4616 | input_line_pointer = first_file_directive; |
a8316fe2 RH |
4617 | ecoff_directive_file (0); |
4618 | input_line_pointer = save_ilp; | |
4619 | free (first_file_directive); | |
4620 | } | |
4621 | ||
4622 | alpha_flag_mdebug = 1; | |
4623 | } | |
4624 | s_stab (n); | |
4625 | } | |
4626 | ||
252b5132 RH |
4627 | static void |
4628 | s_alpha_coff_wrapper (which) | |
4629 | int which; | |
4630 | { | |
4631 | static void (* const fns[]) PARAMS ((int)) = { | |
4632 | ecoff_directive_begin, | |
4633 | ecoff_directive_bend, | |
4634 | ecoff_directive_def, | |
4635 | ecoff_directive_dim, | |
4636 | ecoff_directive_endef, | |
252b5132 RH |
4637 | ecoff_directive_scl, |
4638 | ecoff_directive_tag, | |
4639 | ecoff_directive_val, | |
252b5132 RH |
4640 | }; |
4641 | ||
bc805888 | 4642 | assert (which >= 0 && which < (int) (sizeof (fns)/sizeof (*fns))); |
252b5132 RH |
4643 | |
4644 | if (ECOFF_DEBUGGING) | |
bc805888 | 4645 | (*fns[which]) (0); |
252b5132 RH |
4646 | else |
4647 | { | |
4648 | as_bad (_("ECOFF debugging is disabled.")); | |
4649 | ignore_rest_of_line (); | |
4650 | } | |
4651 | } | |
4652 | #endif /* OBJ_ELF */ | |
4653 | ||
4654 | #ifdef OBJ_EVAX | |
1dab94dd | 4655 | |
252b5132 | 4656 | /* Handle the section specific pseudo-op. */ |
1dab94dd | 4657 | |
252b5132 RH |
4658 | static void |
4659 | s_alpha_section (secid) | |
4660 | int secid; | |
4661 | { | |
4662 | int temp; | |
4663 | #define EVAX_SECTION_COUNT 5 | |
66498417 | 4664 | static char *section_name[EVAX_SECTION_COUNT + 1] = |
252b5132 RH |
4665 | { "NULL", ".rdata", ".comm", ".link", ".ctors", ".dtors" }; |
4666 | ||
4667 | if ((secid <= 0) || (secid > EVAX_SECTION_COUNT)) | |
4668 | { | |
4669 | as_fatal (_("Unknown section directive")); | |
4670 | demand_empty_rest_of_line (); | |
4671 | return; | |
4672 | } | |
4673 | temp = get_absolute_expression (); | |
4674 | subseg_new (section_name[secid], 0); | |
4675 | demand_empty_rest_of_line (); | |
4676 | alpha_insn_label = NULL; | |
4677 | alpha_auto_align_on = 1; | |
4678 | alpha_current_align = 0; | |
4679 | } | |
4680 | ||
252b5132 RH |
4681 | /* Parse .ent directives. */ |
4682 | ||
4683 | static void | |
4684 | s_alpha_ent (ignore) | |
4685 | int ignore; | |
4686 | { | |
4687 | symbolS *symbol; | |
4688 | expressionS symexpr; | |
4689 | ||
4690 | alpha_evax_proc.pdsckind = 0; | |
4691 | alpha_evax_proc.framereg = -1; | |
4692 | alpha_evax_proc.framesize = 0; | |
4693 | alpha_evax_proc.rsa_offset = 0; | |
4694 | alpha_evax_proc.ra_save = AXP_REG_RA; | |
4695 | alpha_evax_proc.fp_save = -1; | |
4696 | alpha_evax_proc.imask = 0; | |
4697 | alpha_evax_proc.fmask = 0; | |
4698 | alpha_evax_proc.prologue = 0; | |
4699 | alpha_evax_proc.type = 0; | |
4700 | ||
4701 | expression (&symexpr); | |
4702 | ||
4703 | if (symexpr.X_op != O_symbol) | |
4704 | { | |
4705 | as_fatal (_(".ent directive has no symbol")); | |
4706 | demand_empty_rest_of_line (); | |
4707 | return; | |
4708 | } | |
4709 | ||
4710 | symbol = make_expr_symbol (&symexpr); | |
9de8d8f1 | 4711 | symbol_get_bfdsym (symbol)->flags |= BSF_FUNCTION; |
252b5132 RH |
4712 | alpha_evax_proc.symbol = symbol; |
4713 | ||
4714 | demand_empty_rest_of_line (); | |
4715 | return; | |
4716 | } | |
4717 | ||
252b5132 RH |
4718 | /* Parse .frame <framreg>,<framesize>,RA,<rsa_offset> directives. */ |
4719 | ||
4720 | static void | |
4721 | s_alpha_frame (ignore) | |
4722 | int ignore; | |
4723 | { | |
4724 | long val; | |
4725 | ||
4726 | alpha_evax_proc.framereg = tc_get_register (1); | |
4727 | ||
4728 | SKIP_WHITESPACE (); | |
4729 | if (*input_line_pointer++ != ',' | |
4730 | || get_absolute_expression_and_terminator (&val) != ',') | |
4731 | { | |
4732 | as_warn (_("Bad .frame directive 1./2. param")); | |
4733 | --input_line_pointer; | |
4734 | demand_empty_rest_of_line (); | |
4735 | return; | |
4736 | } | |
4737 | ||
4738 | alpha_evax_proc.framesize = val; | |
4739 | ||
4740 | (void) tc_get_register (1); | |
4741 | SKIP_WHITESPACE (); | |
4742 | if (*input_line_pointer++ != ',') | |
4743 | { | |
4744 | as_warn (_("Bad .frame directive 3./4. param")); | |
4745 | --input_line_pointer; | |
4746 | demand_empty_rest_of_line (); | |
4747 | return; | |
4748 | } | |
4749 | alpha_evax_proc.rsa_offset = get_absolute_expression (); | |
4750 | ||
4751 | return; | |
4752 | } | |
4753 | ||
4754 | static void | |
4755 | s_alpha_pdesc (ignore) | |
4756 | int ignore; | |
4757 | { | |
4758 | char *name; | |
4759 | char name_end; | |
4760 | long val; | |
4761 | register char *p; | |
4762 | expressionS exp; | |
4763 | symbolS *entry_sym; | |
4764 | fixS *fixp; | |
4765 | segment_info_type *seginfo = seg_info (alpha_link_section); | |
4766 | ||
4767 | if (now_seg != alpha_link_section) | |
4768 | { | |
4769 | as_bad (_(".pdesc directive not in link (.link) section")); | |
4770 | demand_empty_rest_of_line (); | |
4771 | return; | |
4772 | } | |
4773 | ||
4774 | if ((alpha_evax_proc.symbol == 0) | |
4775 | || (!S_IS_DEFINED (alpha_evax_proc.symbol))) | |
4776 | { | |
4777 | as_fatal (_(".pdesc has no matching .ent")); | |
4778 | demand_empty_rest_of_line (); | |
4779 | return; | |
4780 | } | |
4781 | ||
7dcc9865 ILT |
4782 | *symbol_get_obj (alpha_evax_proc.symbol) = |
4783 | (valueT) seginfo->literal_pool_size; | |
252b5132 RH |
4784 | |
4785 | expression (&exp); | |
4786 | if (exp.X_op != O_symbol) | |
4787 | { | |
4788 | as_warn (_(".pdesc directive has no entry symbol")); | |
4789 | demand_empty_rest_of_line (); | |
4790 | return; | |
4791 | } | |
4792 | ||
4793 | entry_sym = make_expr_symbol (&exp); | |
4794 | /* Save bfd symbol of proc desc in function symbol. */ | |
9de8d8f1 RH |
4795 | symbol_get_bfdsym (alpha_evax_proc.symbol)->udata.p |
4796 | = symbol_get_bfdsym (entry_sym); | |
252b5132 RH |
4797 | |
4798 | SKIP_WHITESPACE (); | |
4799 | if (*input_line_pointer++ != ',') | |
4800 | { | |
4801 | as_warn (_("No comma after .pdesc <entryname>")); | |
4802 | demand_empty_rest_of_line (); | |
4803 | return; | |
4804 | } | |
4805 | ||
4806 | SKIP_WHITESPACE (); | |
4807 | name = input_line_pointer; | |
4808 | name_end = get_symbol_end (); | |
4809 | ||
32ff5c2e | 4810 | if (strncmp (name, "stack", 5) == 0) |
252b5132 RH |
4811 | { |
4812 | alpha_evax_proc.pdsckind = PDSC_S_K_KIND_FP_STACK; | |
4813 | } | |
32ff5c2e | 4814 | else if (strncmp (name, "reg", 3) == 0) |
252b5132 RH |
4815 | { |
4816 | alpha_evax_proc.pdsckind = PDSC_S_K_KIND_FP_REGISTER; | |
4817 | } | |
32ff5c2e | 4818 | else if (strncmp (name, "null", 4) == 0) |
252b5132 RH |
4819 | { |
4820 | alpha_evax_proc.pdsckind = PDSC_S_K_KIND_NULL; | |
4821 | } | |
4822 | else | |
4823 | { | |
4824 | as_fatal (_("unknown procedure kind")); | |
4825 | demand_empty_rest_of_line (); | |
4826 | return; | |
4827 | } | |
4828 | ||
4829 | *input_line_pointer = name_end; | |
4830 | demand_empty_rest_of_line (); | |
4831 | ||
4832 | #ifdef md_flush_pending_output | |
4833 | md_flush_pending_output (); | |
4834 | #endif | |
4835 | ||
4836 | frag_align (3, 0, 0); | |
4837 | p = frag_more (16); | |
4838 | fixp = fix_new (frag_now, p - frag_now->fr_literal, 8, 0, 0, 0, 0); | |
4839 | fixp->fx_done = 1; | |
4840 | seginfo->literal_pool_size += 16; | |
4841 | ||
4842 | *p = alpha_evax_proc.pdsckind | |
1aad8cf8 | 4843 | | ((alpha_evax_proc.framereg == 29) ? PDSC_S_M_BASE_REG_IS_FP : 0); |
66498417 | 4844 | *(p + 1) = PDSC_S_M_NATIVE | PDSC_S_M_NO_JACKET; |
252b5132 RH |
4845 | |
4846 | switch (alpha_evax_proc.pdsckind) | |
4847 | { | |
1aad8cf8 | 4848 | case PDSC_S_K_KIND_NULL: |
66498417 KH |
4849 | *(p + 2) = 0; |
4850 | *(p + 3) = 0; | |
1aad8cf8 KH |
4851 | break; |
4852 | case PDSC_S_K_KIND_FP_REGISTER: | |
66498417 KH |
4853 | *(p + 2) = alpha_evax_proc.fp_save; |
4854 | *(p + 3) = alpha_evax_proc.ra_save; | |
1aad8cf8 KH |
4855 | break; |
4856 | case PDSC_S_K_KIND_FP_STACK: | |
66498417 | 4857 | md_number_to_chars (p + 2, (valueT) alpha_evax_proc.rsa_offset, 2); |
1aad8cf8 KH |
4858 | break; |
4859 | default: /* impossible */ | |
4860 | break; | |
252b5132 RH |
4861 | } |
4862 | ||
66498417 KH |
4863 | *(p + 4) = 0; |
4864 | *(p + 5) = alpha_evax_proc.type & 0x0f; | |
252b5132 RH |
4865 | |
4866 | /* Signature offset. */ | |
66498417 | 4867 | md_number_to_chars (p + 6, (valueT) 0, 2); |
252b5132 | 4868 | |
66498417 | 4869 | fix_new_exp (frag_now, p - frag_now->fr_literal+8, 8, &exp, 0, BFD_RELOC_64); |
252b5132 RH |
4870 | |
4871 | if (alpha_evax_proc.pdsckind == PDSC_S_K_KIND_NULL) | |
4872 | return; | |
4873 | ||
4874 | /* Add dummy fix to make add_to_link_pool work. */ | |
4875 | p = frag_more (8); | |
4876 | fixp = fix_new (frag_now, p - frag_now->fr_literal, 8, 0, 0, 0, 0); | |
4877 | fixp->fx_done = 1; | |
4878 | seginfo->literal_pool_size += 8; | |
4879 | ||
4880 | /* pdesc+16: Size. */ | |
32ff5c2e | 4881 | md_number_to_chars (p, (valueT) alpha_evax_proc.framesize, 4); |
252b5132 | 4882 | |
66498417 | 4883 | md_number_to_chars (p + 4, (valueT) 0, 2); |
252b5132 RH |
4884 | |
4885 | /* Entry length. */ | |
66498417 | 4886 | md_number_to_chars (p + 6, alpha_evax_proc.prologue, 2); |
252b5132 RH |
4887 | |
4888 | if (alpha_evax_proc.pdsckind == PDSC_S_K_KIND_FP_REGISTER) | |
4889 | return; | |
4890 | ||
4891 | /* Add dummy fix to make add_to_link_pool work. */ | |
4892 | p = frag_more (8); | |
4893 | fixp = fix_new (frag_now, p - frag_now->fr_literal, 8, 0, 0, 0, 0); | |
4894 | fixp->fx_done = 1; | |
4895 | seginfo->literal_pool_size += 8; | |
4896 | ||
4897 | /* pdesc+24: register masks. */ | |
4898 | ||
4899 | md_number_to_chars (p, alpha_evax_proc.imask, 4); | |
66498417 | 4900 | md_number_to_chars (p + 4, alpha_evax_proc.fmask, 4); |
252b5132 RH |
4901 | |
4902 | return; | |
4903 | } | |
4904 | ||
252b5132 RH |
4905 | /* Support for crash debug on vms. */ |
4906 | ||
4907 | static void | |
4908 | s_alpha_name (ignore) | |
4909 | int ignore; | |
4910 | { | |
4911 | register char *p; | |
4912 | expressionS exp; | |
4913 | segment_info_type *seginfo = seg_info (alpha_link_section); | |
4914 | ||
4915 | if (now_seg != alpha_link_section) | |
4916 | { | |
4917 | as_bad (_(".name directive not in link (.link) section")); | |
4918 | demand_empty_rest_of_line (); | |
4919 | return; | |
4920 | } | |
4921 | ||
4922 | expression (&exp); | |
4923 | if (exp.X_op != O_symbol) | |
4924 | { | |
4925 | as_warn (_(".name directive has no symbol")); | |
4926 | demand_empty_rest_of_line (); | |
4927 | return; | |
4928 | } | |
4929 | ||
4930 | demand_empty_rest_of_line (); | |
4931 | ||
4932 | #ifdef md_flush_pending_output | |
4933 | md_flush_pending_output (); | |
4934 | #endif | |
4935 | ||
4936 | frag_align (3, 0, 0); | |
4937 | p = frag_more (8); | |
4938 | seginfo->literal_pool_size += 8; | |
4939 | ||
66498417 | 4940 | fix_new_exp (frag_now, p - frag_now->fr_literal, 8, &exp, 0, BFD_RELOC_64); |
252b5132 RH |
4941 | |
4942 | return; | |
4943 | } | |
4944 | ||
252b5132 RH |
4945 | static void |
4946 | s_alpha_linkage (ignore) | |
4947 | int ignore; | |
4948 | { | |
4949 | expressionS exp; | |
4950 | char *p; | |
4951 | ||
4952 | #ifdef md_flush_pending_output | |
4953 | md_flush_pending_output (); | |
4954 | #endif | |
4955 | ||
4956 | expression (&exp); | |
4957 | if (exp.X_op != O_symbol) | |
4958 | { | |
4959 | as_fatal (_("No symbol after .linkage")); | |
4960 | } | |
4961 | else | |
4962 | { | |
4963 | p = frag_more (LKP_S_K_SIZE); | |
4964 | memset (p, 0, LKP_S_K_SIZE); | |
4965 | fix_new_exp (frag_now, p - frag_now->fr_literal, LKP_S_K_SIZE, &exp, 0,\ | |
4966 | BFD_RELOC_ALPHA_LINKAGE); | |
4967 | } | |
4968 | demand_empty_rest_of_line (); | |
4969 | ||
4970 | return; | |
4971 | } | |
4972 | ||
252b5132 RH |
4973 | static void |
4974 | s_alpha_code_address (ignore) | |
4975 | int ignore; | |
4976 | { | |
4977 | expressionS exp; | |
4978 | char *p; | |
4979 | ||
4980 | #ifdef md_flush_pending_output | |
4981 | md_flush_pending_output (); | |
4982 | #endif | |
4983 | ||
4984 | expression (&exp); | |
4985 | if (exp.X_op != O_symbol) | |
4986 | { | |
4987 | as_fatal (_("No symbol after .code_address")); | |
4988 | } | |
4989 | else | |
4990 | { | |
4991 | p = frag_more (8); | |
4992 | memset (p, 0, 8); | |
4993 | fix_new_exp (frag_now, p - frag_now->fr_literal, 8, &exp, 0,\ | |
4994 | BFD_RELOC_ALPHA_CODEADDR); | |
4995 | } | |
4996 | demand_empty_rest_of_line (); | |
4997 | ||
4998 | return; | |
4999 | } | |
5000 | ||
252b5132 RH |
5001 | static void |
5002 | s_alpha_fp_save (ignore) | |
5003 | int ignore; | |
5004 | { | |
5005 | ||
5006 | alpha_evax_proc.fp_save = tc_get_register (1); | |
5007 | ||
5008 | demand_empty_rest_of_line (); | |
5009 | return; | |
5010 | } | |
5011 | ||
252b5132 RH |
5012 | static void |
5013 | s_alpha_mask (ignore) | |
5014 | int ignore; | |
5015 | { | |
5016 | long val; | |
5017 | ||
5018 | if (get_absolute_expression_and_terminator (&val) != ',') | |
5019 | { | |
5020 | as_warn (_("Bad .mask directive")); | |
5021 | --input_line_pointer; | |
5022 | } | |
5023 | else | |
5024 | { | |
5025 | alpha_evax_proc.imask = val; | |
32ff5c2e | 5026 | (void) get_absolute_expression (); |
252b5132 RH |
5027 | } |
5028 | demand_empty_rest_of_line (); | |
5029 | ||
5030 | return; | |
5031 | } | |
5032 | ||
252b5132 RH |
5033 | static void |
5034 | s_alpha_fmask (ignore) | |
5035 | int ignore; | |
5036 | { | |
5037 | long val; | |
5038 | ||
5039 | if (get_absolute_expression_and_terminator (&val) != ',') | |
5040 | { | |
5041 | as_warn (_("Bad .fmask directive")); | |
5042 | --input_line_pointer; | |
5043 | } | |
5044 | else | |
5045 | { | |
5046 | alpha_evax_proc.fmask = val; | |
5047 | (void) get_absolute_expression (); | |
5048 | } | |
5049 | demand_empty_rest_of_line (); | |
5050 | ||
5051 | return; | |
5052 | } | |
5053 | ||
5054 | static void | |
5055 | s_alpha_end (ignore) | |
5056 | int ignore; | |
5057 | { | |
5058 | char c; | |
5059 | ||
5060 | c = get_symbol_end (); | |
5061 | *input_line_pointer = c; | |
5062 | demand_empty_rest_of_line (); | |
5063 | alpha_evax_proc.symbol = 0; | |
5064 | ||
5065 | return; | |
5066 | } | |
5067 | ||
252b5132 RH |
5068 | static void |
5069 | s_alpha_file (ignore) | |
5070 | int ignore; | |
5071 | { | |
5072 | symbolS *s; | |
5073 | int length; | |
5074 | static char case_hack[32]; | |
5075 | ||
5076 | extern char *demand_copy_string PARAMS ((int *lenP)); | |
5077 | ||
5078 | sprintf (case_hack, "<CASE:%01d%01d>", | |
9de8d8f1 | 5079 | alpha_flag_hash_long_names, alpha_flag_show_after_trunc); |
252b5132 RH |
5080 | |
5081 | s = symbol_find_or_make (case_hack); | |
9de8d8f1 | 5082 | symbol_get_bfdsym (s)->flags |= BSF_FILE; |
252b5132 RH |
5083 | |
5084 | get_absolute_expression (); | |
5085 | s = symbol_find_or_make (demand_copy_string (&length)); | |
9de8d8f1 | 5086 | symbol_get_bfdsym (s)->flags |= BSF_FILE; |
252b5132 RH |
5087 | demand_empty_rest_of_line (); |
5088 | ||
5089 | return; | |
5090 | } | |
5091 | #endif /* OBJ_EVAX */ | |
5092 | ||
5093 | /* Handle the .gprel32 pseudo op. */ | |
5094 | ||
5095 | static void | |
5096 | s_alpha_gprel32 (ignore) | |
446a06c9 | 5097 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5098 | { |
5099 | expressionS e; | |
5100 | char *p; | |
5101 | ||
5102 | SKIP_WHITESPACE (); | |
5103 | expression (&e); | |
5104 | ||
5105 | #ifdef OBJ_ELF | |
5106 | switch (e.X_op) | |
5107 | { | |
5108 | case O_constant: | |
32ff5c2e | 5109 | e.X_add_symbol = section_symbol (absolute_section); |
252b5132 RH |
5110 | e.X_op = O_symbol; |
5111 | /* FALLTHRU */ | |
5112 | case O_symbol: | |
5113 | break; | |
5114 | default: | |
bc805888 | 5115 | abort (); |
252b5132 RH |
5116 | } |
5117 | #else | |
5118 | #ifdef OBJ_ECOFF | |
5119 | switch (e.X_op) | |
5120 | { | |
5121 | case O_constant: | |
5122 | e.X_add_symbol = section_symbol (absolute_section); | |
5123 | /* fall through */ | |
5124 | case O_symbol: | |
5125 | e.X_op = O_subtract; | |
5126 | e.X_op_symbol = alpha_gp_symbol; | |
5127 | break; | |
5128 | default: | |
5129 | abort (); | |
5130 | } | |
5131 | #endif | |
5132 | #endif | |
5133 | ||
5134 | if (alpha_auto_align_on && alpha_current_align < 2) | |
5135 | alpha_align (2, (char *) NULL, alpha_insn_label, 0); | |
5136 | if (alpha_current_align > 2) | |
5137 | alpha_current_align = 2; | |
5138 | alpha_insn_label = NULL; | |
5139 | ||
5140 | p = frag_more (4); | |
5141 | memset (p, 0, 4); | |
66498417 | 5142 | fix_new_exp (frag_now, p - frag_now->fr_literal, 4, |
252b5132 RH |
5143 | &e, 0, BFD_RELOC_GPREL32); |
5144 | } | |
5145 | ||
5146 | /* Handle floating point allocation pseudo-ops. This is like the | |
5147 | generic vresion, but it makes sure the current label, if any, is | |
5148 | correctly aligned. */ | |
5149 | ||
5150 | static void | |
5151 | s_alpha_float_cons (type) | |
5152 | int type; | |
5153 | { | |
5154 | int log_size; | |
5155 | ||
5156 | switch (type) | |
5157 | { | |
5158 | default: | |
5159 | case 'f': | |
5160 | case 'F': | |
5161 | log_size = 2; | |
5162 | break; | |
5163 | ||
5164 | case 'd': | |
5165 | case 'D': | |
5166 | case 'G': | |
5167 | log_size = 3; | |
5168 | break; | |
5169 | ||
5170 | case 'x': | |
5171 | case 'X': | |
5172 | case 'p': | |
5173 | case 'P': | |
5174 | log_size = 4; | |
5175 | break; | |
5176 | } | |
5177 | ||
5178 | if (alpha_auto_align_on && alpha_current_align < log_size) | |
5179 | alpha_align (log_size, (char *) NULL, alpha_insn_label, 0); | |
5180 | if (alpha_current_align > log_size) | |
5181 | alpha_current_align = log_size; | |
5182 | alpha_insn_label = NULL; | |
5183 | ||
5184 | float_cons (type); | |
5185 | } | |
5186 | ||
5187 | /* Handle the .proc pseudo op. We don't really do much with it except | |
5188 | parse it. */ | |
5189 | ||
5190 | static void | |
5191 | s_alpha_proc (is_static) | |
446a06c9 | 5192 | int is_static ATTRIBUTE_UNUSED; |
252b5132 RH |
5193 | { |
5194 | char *name; | |
5195 | char c; | |
5196 | char *p; | |
5197 | symbolS *symbolP; | |
5198 | int temp; | |
5199 | ||
5200 | /* Takes ".proc name,nargs" */ | |
5201 | SKIP_WHITESPACE (); | |
5202 | name = input_line_pointer; | |
5203 | c = get_symbol_end (); | |
5204 | p = input_line_pointer; | |
5205 | symbolP = symbol_find_or_make (name); | |
5206 | *p = c; | |
5207 | SKIP_WHITESPACE (); | |
5208 | if (*input_line_pointer != ',') | |
5209 | { | |
5210 | *p = 0; | |
5211 | as_warn (_("Expected comma after name \"%s\""), name); | |
5212 | *p = c; | |
5213 | temp = 0; | |
5214 | ignore_rest_of_line (); | |
5215 | } | |
5216 | else | |
5217 | { | |
5218 | input_line_pointer++; | |
5219 | temp = get_absolute_expression (); | |
5220 | } | |
7dcc9865 | 5221 | /* *symbol_get_obj (symbolP) = (signed char) temp; */ |
252b5132 RH |
5222 | as_warn (_("unhandled: .proc %s,%d"), name, temp); |
5223 | demand_empty_rest_of_line (); | |
5224 | } | |
5225 | ||
5226 | /* Handle the .set pseudo op. This is used to turn on and off most of | |
5227 | the assembler features. */ | |
5228 | ||
5229 | static void | |
5230 | s_alpha_set (x) | |
446a06c9 | 5231 | int x ATTRIBUTE_UNUSED; |
252b5132 RH |
5232 | { |
5233 | char *name, ch, *s; | |
5234 | int yesno = 1; | |
5235 | ||
5236 | SKIP_WHITESPACE (); | |
5237 | name = input_line_pointer; | |
5238 | ch = get_symbol_end (); | |
5239 | ||
5240 | s = name; | |
5241 | if (s[0] == 'n' && s[1] == 'o') | |
5242 | { | |
5243 | yesno = 0; | |
5244 | s += 2; | |
5245 | } | |
5246 | if (!strcmp ("reorder", s)) | |
5247 | /* ignore */ ; | |
5248 | else if (!strcmp ("at", s)) | |
5249 | alpha_noat_on = !yesno; | |
5250 | else if (!strcmp ("macro", s)) | |
5251 | alpha_macros_on = yesno; | |
5252 | else if (!strcmp ("move", s)) | |
5253 | /* ignore */ ; | |
5254 | else if (!strcmp ("volatile", s)) | |
5255 | /* ignore */ ; | |
5256 | else | |
5257 | as_warn (_("Tried to .set unrecognized mode `%s'"), name); | |
5258 | ||
5259 | *input_line_pointer = ch; | |
5260 | demand_empty_rest_of_line (); | |
5261 | } | |
5262 | ||
5263 | /* Handle the .base pseudo op. This changes the assembler's notion of | |
5264 | the $gp register. */ | |
5265 | ||
5266 | static void | |
5267 | s_alpha_base (ignore) | |
446a06c9 | 5268 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5269 | { |
5270 | #if 0 | |
5271 | if (first_32bit_quadrant) | |
5272 | { | |
5273 | /* not fatal, but it might not work in the end */ | |
5274 | as_warn (_("File overrides no-base-register option.")); | |
5275 | first_32bit_quadrant = 0; | |
5276 | } | |
5277 | #endif | |
5278 | ||
5279 | SKIP_WHITESPACE (); | |
5280 | if (*input_line_pointer == '$') | |
5281 | { /* $rNN form */ | |
5282 | input_line_pointer++; | |
5283 | if (*input_line_pointer == 'r') | |
5284 | input_line_pointer++; | |
5285 | } | |
5286 | ||
5287 | alpha_gp_register = get_absolute_expression (); | |
5288 | if (alpha_gp_register < 0 || alpha_gp_register > 31) | |
5289 | { | |
5290 | alpha_gp_register = AXP_REG_GP; | |
5291 | as_warn (_("Bad base register, using $%d."), alpha_gp_register); | |
5292 | } | |
5293 | ||
5294 | demand_empty_rest_of_line (); | |
5295 | } | |
5296 | ||
5297 | /* Handle the .align pseudo-op. This aligns to a power of two. It | |
5298 | also adjusts any current instruction label. We treat this the same | |
5299 | way the MIPS port does: .align 0 turns off auto alignment. */ | |
5300 | ||
5301 | static void | |
5302 | s_alpha_align (ignore) | |
446a06c9 | 5303 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
5304 | { |
5305 | int align; | |
5306 | char fill, *pfill; | |
5307 | long max_alignment = 15; | |
5308 | ||
5309 | align = get_absolute_expression (); | |
5310 | if (align > max_alignment) | |
5311 | { | |
5312 | align = max_alignment; | |
5313 | as_bad (_("Alignment too large: %d. assumed"), align); | |
5314 | } | |
5315 | else if (align < 0) | |
5316 | { | |
5317 | as_warn (_("Alignment negative: 0 assumed")); | |
5318 | align = 0; | |
5319 | } | |
5320 | ||
5321 | if (*input_line_pointer == ',') | |
5322 | { | |
5323 | input_line_pointer++; | |
5324 | fill = get_absolute_expression (); | |
5325 | pfill = &fill; | |
5326 | } | |
5327 | else | |
5328 | pfill = NULL; | |
5329 | ||
5330 | if (align != 0) | |
5331 | { | |
5332 | alpha_auto_align_on = 1; | |
5333 | alpha_align (align, pfill, alpha_insn_label, 1); | |
5334 | } | |
5335 | else | |
5336 | { | |
5337 | alpha_auto_align_on = 0; | |
5338 | } | |
5339 | ||
5340 | demand_empty_rest_of_line (); | |
5341 | } | |
5342 | ||
5343 | /* Hook the normal string processor to reset known alignment. */ | |
5344 | ||
5345 | static void | |
5346 | s_alpha_stringer (terminate) | |
5347 | int terminate; | |
5348 | { | |
5349 | alpha_current_align = 0; | |
5350 | alpha_insn_label = NULL; | |
5351 | stringer (terminate); | |
5352 | } | |
5353 | ||
5354 | /* Hook the normal space processing to reset known alignment. */ | |
5355 | ||
5356 | static void | |
5357 | s_alpha_space (ignore) | |
5358 | int ignore; | |
5359 | { | |
5360 | alpha_current_align = 0; | |
5361 | alpha_insn_label = NULL; | |
5362 | s_space (ignore); | |
5363 | } | |
5364 | ||
5365 | /* Hook into cons for auto-alignment. */ | |
5366 | ||
5367 | void | |
5368 | alpha_cons_align (size) | |
5369 | int size; | |
5370 | { | |
5371 | int log_size; | |
5372 | ||
5373 | log_size = 0; | |
5374 | while ((size >>= 1) != 0) | |
5375 | ++log_size; | |
5376 | ||
5377 | if (alpha_auto_align_on && alpha_current_align < log_size) | |
5378 | alpha_align (log_size, (char *) NULL, alpha_insn_label, 0); | |
5379 | if (alpha_current_align > log_size) | |
5380 | alpha_current_align = log_size; | |
5381 | alpha_insn_label = NULL; | |
5382 | } | |
5383 | ||
5384 | /* Here come the .uword, .ulong, and .uquad explicitly unaligned | |
5385 | pseudos. We just turn off auto-alignment and call down to cons. */ | |
5386 | ||
5387 | static void | |
5388 | s_alpha_ucons (bytes) | |
5389 | int bytes; | |
5390 | { | |
5391 | int hold = alpha_auto_align_on; | |
5392 | alpha_auto_align_on = 0; | |
5393 | cons (bytes); | |
5394 | alpha_auto_align_on = hold; | |
5395 | } | |
5396 | ||
5397 | /* Switch the working cpu type. */ | |
5398 | ||
5399 | static void | |
5400 | s_alpha_arch (ignored) | |
446a06c9 | 5401 | int ignored ATTRIBUTE_UNUSED; |
252b5132 RH |
5402 | { |
5403 | char *name, ch; | |
5404 | const struct cpu_type *p; | |
5405 | ||
5406 | SKIP_WHITESPACE (); | |
5407 | name = input_line_pointer; | |
5408 | ch = get_symbol_end (); | |
5409 | ||
5410 | for (p = cpu_types; p->name; ++p) | |
32ff5c2e | 5411 | if (strcmp (name, p->name) == 0) |
252b5132 | 5412 | { |
1aad8cf8 | 5413 | alpha_target_name = p->name, alpha_target = p->flags; |
252b5132 RH |
5414 | goto found; |
5415 | } | |
32ff5c2e | 5416 | as_warn ("Unknown CPU identifier `%s'", name); |
252b5132 RH |
5417 | |
5418 | found: | |
5419 | *input_line_pointer = ch; | |
5420 | demand_empty_rest_of_line (); | |
5421 | } | |
252b5132 | 5422 | \f |
252b5132 RH |
5423 | #ifdef DEBUG1 |
5424 | /* print token expression with alpha specific extension. */ | |
5425 | ||
5426 | static void | |
32ff5c2e | 5427 | alpha_print_token (f, exp) |
1aad8cf8 KH |
5428 | FILE *f; |
5429 | const expressionS *exp; | |
252b5132 RH |
5430 | { |
5431 | switch (exp->X_op) | |
5432 | { | |
1aad8cf8 KH |
5433 | case O_cpregister: |
5434 | putc (',', f); | |
5435 | /* FALLTHRU */ | |
5436 | case O_pregister: | |
5437 | putc ('(', f); | |
5438 | { | |
5439 | expressionS nexp = *exp; | |
5440 | nexp.X_op = O_register; | |
5441 | print_expr (f, &nexp); | |
5442 | } | |
5443 | putc (')', f); | |
5444 | break; | |
5445 | default: | |
5446 | print_expr (f, exp); | |
5447 | break; | |
252b5132 RH |
5448 | } |
5449 | return; | |
5450 | } | |
5451 | #endif | |
5452 | \f | |
5453 | /* The target specific pseudo-ops which we support. */ | |
5454 | ||
66498417 | 5455 | const pseudo_typeS md_pseudo_table[] = { |
252b5132 RH |
5456 | #ifdef OBJ_ECOFF |
5457 | {"comm", s_alpha_comm, 0}, /* osf1 compiler does this */ | |
5458 | {"rdata", s_alpha_rdata, 0}, | |
5459 | #endif | |
5460 | {"text", s_alpha_text, 0}, | |
5461 | {"data", s_alpha_data, 0}, | |
5462 | #ifdef OBJ_ECOFF | |
5463 | {"sdata", s_alpha_sdata, 0}, | |
5464 | #endif | |
5465 | #ifdef OBJ_ELF | |
5466 | {"section", s_alpha_section, 0}, | |
5467 | {"section.s", s_alpha_section, 0}, | |
5468 | {"sect", s_alpha_section, 0}, | |
5469 | {"sect.s", s_alpha_section, 0}, | |
5470 | #endif | |
5471 | #ifdef OBJ_EVAX | |
5472 | { "pdesc", s_alpha_pdesc, 0}, | |
5473 | { "name", s_alpha_name, 0}, | |
5474 | { "linkage", s_alpha_linkage, 0}, | |
5475 | { "code_address", s_alpha_code_address, 0}, | |
5476 | { "ent", s_alpha_ent, 0}, | |
5477 | { "frame", s_alpha_frame, 0}, | |
5478 | { "fp_save", s_alpha_fp_save, 0}, | |
5479 | { "mask", s_alpha_mask, 0}, | |
5480 | { "fmask", s_alpha_fmask, 0}, | |
5481 | { "end", s_alpha_end, 0}, | |
5482 | { "file", s_alpha_file, 0}, | |
5483 | { "rdata", s_alpha_section, 1}, | |
5484 | { "comm", s_alpha_comm, 0}, | |
5485 | { "link", s_alpha_section, 3}, | |
5486 | { "ctors", s_alpha_section, 4}, | |
5487 | { "dtors", s_alpha_section, 5}, | |
5488 | #endif | |
5489 | #ifdef OBJ_ELF | |
5490 | /* Frame related pseudos. */ | |
5491 | {"ent", s_alpha_ent, 0}, | |
5492 | {"end", s_alpha_end, 0}, | |
5493 | {"mask", s_alpha_mask, 0}, | |
5494 | {"fmask", s_alpha_mask, 1}, | |
5495 | {"frame", s_alpha_frame, 0}, | |
5496 | {"prologue", s_alpha_prologue, 0}, | |
4dc7ead9 RH |
5497 | {"file", s_alpha_file, 5}, |
5498 | {"loc", s_alpha_loc, 9}, | |
a8316fe2 RH |
5499 | {"stabs", s_alpha_stab, 's'}, |
5500 | {"stabn", s_alpha_stab, 'n'}, | |
252b5132 RH |
5501 | /* COFF debugging related pseudos. */ |
5502 | {"begin", s_alpha_coff_wrapper, 0}, | |
5503 | {"bend", s_alpha_coff_wrapper, 1}, | |
5504 | {"def", s_alpha_coff_wrapper, 2}, | |
5505 | {"dim", s_alpha_coff_wrapper, 3}, | |
5506 | {"endef", s_alpha_coff_wrapper, 4}, | |
4dc7ead9 RH |
5507 | {"scl", s_alpha_coff_wrapper, 5}, |
5508 | {"tag", s_alpha_coff_wrapper, 6}, | |
5509 | {"val", s_alpha_coff_wrapper, 7}, | |
252b5132 RH |
5510 | #else |
5511 | {"prologue", s_ignore, 0}, | |
5512 | #endif | |
5513 | {"gprel32", s_alpha_gprel32, 0}, | |
5514 | {"t_floating", s_alpha_float_cons, 'd'}, | |
5515 | {"s_floating", s_alpha_float_cons, 'f'}, | |
5516 | {"f_floating", s_alpha_float_cons, 'F'}, | |
5517 | {"g_floating", s_alpha_float_cons, 'G'}, | |
5518 | {"d_floating", s_alpha_float_cons, 'D'}, | |
5519 | ||
5520 | {"proc", s_alpha_proc, 0}, | |
5521 | {"aproc", s_alpha_proc, 1}, | |
5522 | {"set", s_alpha_set, 0}, | |
5523 | {"reguse", s_ignore, 0}, | |
5524 | {"livereg", s_ignore, 0}, | |
5525 | {"base", s_alpha_base, 0}, /*??*/ | |
5526 | {"option", s_ignore, 0}, | |
5527 | {"aent", s_ignore, 0}, | |
5528 | {"ugen", s_ignore, 0}, | |
5529 | {"eflag", s_ignore, 0}, | |
5530 | ||
5531 | {"align", s_alpha_align, 0}, | |
5532 | {"double", s_alpha_float_cons, 'd'}, | |
5533 | {"float", s_alpha_float_cons, 'f'}, | |
5534 | {"single", s_alpha_float_cons, 'f'}, | |
5535 | {"ascii", s_alpha_stringer, 0}, | |
5536 | {"asciz", s_alpha_stringer, 1}, | |
5537 | {"string", s_alpha_stringer, 1}, | |
5538 | {"space", s_alpha_space, 0}, | |
5539 | {"skip", s_alpha_space, 0}, | |
5540 | {"zero", s_alpha_space, 0}, | |
5541 | ||
5542 | /* Unaligned data pseudos. */ | |
5543 | {"uword", s_alpha_ucons, 2}, | |
5544 | {"ulong", s_alpha_ucons, 4}, | |
5545 | {"uquad", s_alpha_ucons, 8}, | |
5546 | ||
5547 | #ifdef OBJ_ELF | |
5548 | /* Dwarf wants these versions of unaligned. */ | |
5549 | {"2byte", s_alpha_ucons, 2}, | |
5550 | {"4byte", s_alpha_ucons, 4}, | |
5551 | {"8byte", s_alpha_ucons, 8}, | |
5552 | #endif | |
5553 | ||
5554 | /* We don't do any optimizing, so we can safely ignore these. */ | |
5555 | {"noalias", s_ignore, 0}, | |
5556 | {"alias", s_ignore, 0}, | |
5557 | ||
5558 | {"arch", s_alpha_arch, 0}, | |
5559 | ||
5560 | {NULL, 0, 0}, | |
5561 | }; | |
252b5132 RH |
5562 | \f |
5563 | /* Build a BFD section with its flags set appropriately for the .lita, | |
5564 | .lit8, or .lit4 sections. */ | |
5565 | ||
5566 | static void | |
5567 | create_literal_section (name, secp, symp) | |
5568 | const char *name; | |
5569 | segT *secp; | |
5570 | symbolS **symp; | |
5571 | { | |
5572 | segT current_section = now_seg; | |
5573 | int current_subsec = now_subseg; | |
5574 | segT new_sec; | |
5575 | ||
5576 | *secp = new_sec = subseg_new (name, 0); | |
5577 | subseg_set (current_section, current_subsec); | |
5578 | bfd_set_section_alignment (stdoutput, new_sec, 4); | |
5579 | bfd_set_section_flags (stdoutput, new_sec, | |
5580 | SEC_RELOC | SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
5581 | | SEC_DATA); | |
5582 | ||
5583 | S_CLEAR_EXTERNAL (*symp = section_symbol (new_sec)); | |
5584 | } | |
5585 | ||
5586 | #ifdef OBJ_ECOFF | |
5587 | ||
5588 | /* @@@ GP selection voodoo. All of this seems overly complicated and | |
5589 | unnecessary; which is the primary reason it's for ECOFF only. */ | |
5590 | ||
5591 | static inline void | |
5592 | maybe_set_gp (sec) | |
5593 | asection *sec; | |
5594 | { | |
5595 | bfd_vma vma; | |
5596 | if (!sec) | |
5597 | return; | |
5598 | vma = bfd_get_section_vma (foo, sec); | |
5599 | if (vma && vma < alpha_gp_value) | |
5600 | alpha_gp_value = vma; | |
5601 | } | |
5602 | ||
5603 | static void | |
5604 | select_gp_value () | |
5605 | { | |
5606 | assert (alpha_gp_value == 0); | |
5607 | ||
5608 | /* Get minus-one in whatever width... */ | |
66498417 KH |
5609 | alpha_gp_value = 0; |
5610 | alpha_gp_value--; | |
252b5132 RH |
5611 | |
5612 | /* Select the smallest VMA of these existing sections. */ | |
5613 | maybe_set_gp (alpha_lita_section); | |
5614 | #if 0 | |
5615 | /* These were disabled before -- should we use them? */ | |
5616 | maybe_set_gp (sdata); | |
5617 | maybe_set_gp (lit8_sec); | |
5618 | maybe_set_gp (lit4_sec); | |
5619 | #endif | |
5620 | ||
5621 | /* @@ Will a simple 0x8000 work here? If not, why not? */ | |
5622 | #define GP_ADJUSTMENT (0x8000 - 0x10) | |
5623 | ||
5624 | alpha_gp_value += GP_ADJUSTMENT; | |
5625 | ||
5626 | S_SET_VALUE (alpha_gp_symbol, alpha_gp_value); | |
5627 | ||
5628 | #ifdef DEBUG1 | |
5629 | printf (_("Chose GP value of %lx\n"), alpha_gp_value); | |
5630 | #endif | |
5631 | } | |
5632 | #endif /* OBJ_ECOFF */ | |
5633 | ||
d61a78a7 RH |
5634 | #ifdef OBJ_ELF |
5635 | /* Map 's' to SHF_ALPHA_GPREL. */ | |
5636 | ||
5637 | int | |
5638 | alpha_elf_section_letter (letter, ptr_msg) | |
5639 | int letter; | |
5640 | char **ptr_msg; | |
5641 | { | |
5642 | if (letter == 's') | |
5643 | return SHF_ALPHA_GPREL; | |
5644 | ||
13ae64f3 | 5645 | *ptr_msg = _("Bad .section directive: want a,s,w,x,M,S,G,T in string"); |
d61a78a7 RH |
5646 | return 0; |
5647 | } | |
5648 | ||
5649 | /* Map SHF_ALPHA_GPREL to SEC_SMALL_DATA. */ | |
5650 | ||
5651 | flagword | |
5652 | alpha_elf_section_flags (flags, attr, type) | |
5653 | flagword flags; | |
5654 | int attr, type ATTRIBUTE_UNUSED; | |
5655 | { | |
5656 | if (attr & SHF_ALPHA_GPREL) | |
5657 | flags |= SEC_SMALL_DATA; | |
5658 | return flags; | |
5659 | } | |
5660 | #endif /* OBJ_ELF */ | |
5661 | ||
252b5132 RH |
5662 | /* Called internally to handle all alignment needs. This takes care |
5663 | of eliding calls to frag_align if'n the cached current alignment | |
5664 | says we've already got it, as well as taking care of the auto-align | |
5665 | feature wrt labels. */ | |
5666 | ||
5667 | static void | |
5668 | alpha_align (n, pfill, label, force) | |
5669 | int n; | |
5670 | char *pfill; | |
5671 | symbolS *label; | |
446a06c9 | 5672 | int force ATTRIBUTE_UNUSED; |
252b5132 RH |
5673 | { |
5674 | if (alpha_current_align >= n) | |
5675 | return; | |
5676 | ||
5677 | if (pfill == NULL) | |
5678 | { | |
0a9ef439 RH |
5679 | if (subseg_text_p (now_seg)) |
5680 | frag_align_code (n, 0); | |
252b5132 RH |
5681 | else |
5682 | frag_align (n, 0, 0); | |
5683 | } | |
5684 | else | |
5685 | frag_align (n, *pfill, 0); | |
5686 | ||
5687 | alpha_current_align = n; | |
5688 | ||
98007ce7 | 5689 | if (label != NULL && S_GET_SEGMENT (label) == now_seg) |
252b5132 | 5690 | { |
49309057 | 5691 | symbol_set_frag (label, frag_now); |
252b5132 RH |
5692 | S_SET_VALUE (label, (valueT) frag_now_fix ()); |
5693 | } | |
5694 | ||
98007ce7 | 5695 | record_alignment (now_seg, n); |
252b5132 | 5696 | |
0a9ef439 | 5697 | /* ??? If alpha_flag_relax && force && elf, record the requested alignment |
252b5132 RH |
5698 | in a reloc for the linker to see. */ |
5699 | } | |
5700 | ||
0a9ef439 RH |
5701 | /* This is called from HANDLE_ALIGN in write.c. Fill in the contents |
5702 | of an rs_align_code fragment. */ | |
5703 | ||
bfb32b52 | 5704 | void |
0a9ef439 RH |
5705 | alpha_handle_align (fragp) |
5706 | fragS *fragp; | |
5707 | { | |
84b229ef | 5708 | static char const unop[4] = { 0x00, 0x00, 0xfe, 0x2f }; |
0a9ef439 | 5709 | static char const nopunop[8] = { |
1aad8cf8 | 5710 | 0x1f, 0x04, 0xff, 0x47, |
84b229ef | 5711 | 0x00, 0x00, 0xfe, 0x2f |
0a9ef439 RH |
5712 | }; |
5713 | ||
5714 | int bytes, fix; | |
5715 | char *p; | |
5716 | ||
5717 | if (fragp->fr_type != rs_align_code) | |
5718 | return; | |
5719 | ||
5720 | bytes = fragp->fr_next->fr_address - fragp->fr_address - fragp->fr_fix; | |
5721 | p = fragp->fr_literal + fragp->fr_fix; | |
5722 | fix = 0; | |
5723 | ||
5724 | if (bytes & 3) | |
5725 | { | |
5726 | fix = bytes & 3; | |
5727 | memset (p, 0, fix); | |
5728 | p += fix; | |
5729 | bytes -= fix; | |
5730 | } | |
5731 | ||
5732 | if (bytes & 4) | |
5733 | { | |
5734 | memcpy (p, unop, 4); | |
5735 | p += 4; | |
5736 | bytes -= 4; | |
5737 | fix += 4; | |
5738 | } | |
5739 | ||
5740 | memcpy (p, nopunop, 8); | |
5741 | ||
5742 | fragp->fr_fix += fix; | |
5743 | fragp->fr_var = 8; | |
5744 | } | |
5745 | ||
252b5132 RH |
5746 | /* The Alpha has support for some VAX floating point types, as well as for |
5747 | IEEE floating point. We consider IEEE to be the primary floating point | |
5748 | format, and sneak in the VAX floating point support here. */ | |
5749 | #define md_atof vax_md_atof | |
5750 | #include "config/atof-vax.c" |