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e30ec452 TS |
1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
6 | * A small micro-assembler. It is intentionally kept simple, does only | |
7 | * support a subset of instructions, and does not try to hide pipeline | |
8 | * effects like branch delay slots. | |
9 | * | |
10 | * Copyright (C) 2004, 2005, 2006, 2008 Thiemo Seufer | |
11 | * Copyright (C) 2005, 2007 Maciej W. Rozycki | |
12 | * Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org) | |
13 | */ | |
14 | ||
15 | #include <linux/kernel.h> | |
16 | #include <linux/types.h> | |
17 | #include <linux/init.h> | |
18 | ||
19 | #include <asm/inst.h> | |
20 | #include <asm/elf.h> | |
21 | #include <asm/bugs.h> | |
22 | ||
23 | #include "uasm.h" | |
24 | ||
25 | enum fields { | |
26 | RS = 0x001, | |
27 | RT = 0x002, | |
28 | RD = 0x004, | |
29 | RE = 0x008, | |
30 | SIMM = 0x010, | |
31 | UIMM = 0x020, | |
32 | BIMM = 0x040, | |
33 | JIMM = 0x080, | |
34 | FUNC = 0x100, | |
35 | SET = 0x200 | |
36 | }; | |
37 | ||
38 | #define OP_MASK 0x3f | |
39 | #define OP_SH 26 | |
40 | #define RS_MASK 0x1f | |
41 | #define RS_SH 21 | |
42 | #define RT_MASK 0x1f | |
43 | #define RT_SH 16 | |
44 | #define RD_MASK 0x1f | |
45 | #define RD_SH 11 | |
46 | #define RE_MASK 0x1f | |
47 | #define RE_SH 6 | |
48 | #define IMM_MASK 0xffff | |
49 | #define IMM_SH 0 | |
50 | #define JIMM_MASK 0x3ffffff | |
51 | #define JIMM_SH 0 | |
52 | #define FUNC_MASK 0x3f | |
53 | #define FUNC_SH 0 | |
54 | #define SET_MASK 0x7 | |
55 | #define SET_SH 0 | |
56 | ||
57 | enum opcode { | |
58 | insn_invalid, | |
59 | insn_addu, insn_addiu, insn_and, insn_andi, insn_beq, | |
60 | insn_beql, insn_bgez, insn_bgezl, insn_bltz, insn_bltzl, | |
61 | insn_bne, insn_daddu, insn_daddiu, insn_dmfc0, insn_dmtc0, | |
62 | insn_dsll, insn_dsll32, insn_dsra, insn_dsrl, insn_dsrl32, | |
63 | insn_dsubu, insn_eret, insn_j, insn_jal, insn_jr, insn_ld, | |
64 | insn_ll, insn_lld, insn_lui, insn_lw, insn_mfc0, insn_mtc0, | |
65 | insn_ori, insn_rfe, insn_sc, insn_scd, insn_sd, insn_sll, | |
66 | insn_sra, insn_srl, insn_subu, insn_sw, insn_tlbp, insn_tlbwi, | |
67 | insn_tlbwr, insn_xor, insn_xori | |
68 | }; | |
69 | ||
70 | struct insn { | |
71 | enum opcode opcode; | |
72 | u32 match; | |
73 | enum fields fields; | |
74 | }; | |
75 | ||
76 | /* This macro sets the non-variable bits of an instruction. */ | |
77 | #define M(a, b, c, d, e, f) \ | |
78 | ((a) << OP_SH \ | |
79 | | (b) << RS_SH \ | |
80 | | (c) << RT_SH \ | |
81 | | (d) << RD_SH \ | |
82 | | (e) << RE_SH \ | |
83 | | (f) << FUNC_SH) | |
84 | ||
85 | static struct insn insn_table[] __initdata = { | |
86 | { insn_addiu, M(addiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, | |
87 | { insn_addu, M(spec_op, 0, 0, 0, 0, addu_op), RS | RT | RD }, | |
88 | { insn_and, M(spec_op, 0, 0, 0, 0, and_op), RS | RT | RD }, | |
89 | { insn_andi, M(andi_op, 0, 0, 0, 0, 0), RS | RT | UIMM }, | |
90 | { insn_beq, M(beq_op, 0, 0, 0, 0, 0), RS | RT | BIMM }, | |
91 | { insn_beql, M(beql_op, 0, 0, 0, 0, 0), RS | RT | BIMM }, | |
92 | { insn_bgez, M(bcond_op, 0, bgez_op, 0, 0, 0), RS | BIMM }, | |
93 | { insn_bgezl, M(bcond_op, 0, bgezl_op, 0, 0, 0), RS | BIMM }, | |
94 | { insn_bltz, M(bcond_op, 0, bltz_op, 0, 0, 0), RS | BIMM }, | |
95 | { insn_bltzl, M(bcond_op, 0, bltzl_op, 0, 0, 0), RS | BIMM }, | |
96 | { insn_bne, M(bne_op, 0, 0, 0, 0, 0), RS | RT | BIMM }, | |
97 | { insn_daddiu, M(daddiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, | |
98 | { insn_daddu, M(spec_op, 0, 0, 0, 0, daddu_op), RS | RT | RD }, | |
99 | { insn_dmfc0, M(cop0_op, dmfc_op, 0, 0, 0, 0), RT | RD | SET}, | |
100 | { insn_dmtc0, M(cop0_op, dmtc_op, 0, 0, 0, 0), RT | RD | SET}, | |
101 | { insn_dsll, M(spec_op, 0, 0, 0, 0, dsll_op), RT | RD | RE }, | |
102 | { insn_dsll32, M(spec_op, 0, 0, 0, 0, dsll32_op), RT | RD | RE }, | |
103 | { insn_dsra, M(spec_op, 0, 0, 0, 0, dsra_op), RT | RD | RE }, | |
104 | { insn_dsrl, M(spec_op, 0, 0, 0, 0, dsrl_op), RT | RD | RE }, | |
105 | { insn_dsrl32, M(spec_op, 0, 0, 0, 0, dsrl32_op), RT | RD | RE }, | |
106 | { insn_dsubu, M(spec_op, 0, 0, 0, 0, dsubu_op), RS | RT | RD }, | |
107 | { insn_eret, M(cop0_op, cop_op, 0, 0, 0, eret_op), 0 }, | |
108 | { insn_j, M(j_op, 0, 0, 0, 0, 0), JIMM }, | |
109 | { insn_jal, M(jal_op, 0, 0, 0, 0, 0), JIMM }, | |
110 | { insn_jr, M(spec_op, 0, 0, 0, 0, jr_op), RS }, | |
111 | { insn_ld, M(ld_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, | |
112 | { insn_ll, M(ll_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, | |
113 | { insn_lld, M(lld_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, | |
114 | { insn_lui, M(lui_op, 0, 0, 0, 0, 0), RT | SIMM }, | |
115 | { insn_lw, M(lw_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, | |
116 | { insn_mfc0, M(cop0_op, mfc_op, 0, 0, 0, 0), RT | RD | SET}, | |
117 | { insn_mtc0, M(cop0_op, mtc_op, 0, 0, 0, 0), RT | RD | SET}, | |
118 | { insn_ori, M(ori_op, 0, 0, 0, 0, 0), RS | RT | UIMM }, | |
119 | { insn_rfe, M(cop0_op, cop_op, 0, 0, 0, rfe_op), 0 }, | |
120 | { insn_sc, M(sc_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, | |
121 | { insn_scd, M(scd_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, | |
122 | { insn_sd, M(sd_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, | |
123 | { insn_sll, M(spec_op, 0, 0, 0, 0, sll_op), RT | RD | RE }, | |
124 | { insn_sra, M(spec_op, 0, 0, 0, 0, sra_op), RT | RD | RE }, | |
125 | { insn_srl, M(spec_op, 0, 0, 0, 0, srl_op), RT | RD | RE }, | |
126 | { insn_subu, M(spec_op, 0, 0, 0, 0, subu_op), RS | RT | RD }, | |
127 | { insn_sw, M(sw_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, | |
128 | { insn_tlbp, M(cop0_op, cop_op, 0, 0, 0, tlbp_op), 0 }, | |
129 | { insn_tlbwi, M(cop0_op, cop_op, 0, 0, 0, tlbwi_op), 0 }, | |
130 | { insn_tlbwr, M(cop0_op, cop_op, 0, 0, 0, tlbwr_op), 0 }, | |
131 | { insn_xor, M(spec_op, 0, 0, 0, 0, xor_op), RS | RT | RD }, | |
132 | { insn_xori, M(xori_op, 0, 0, 0, 0, 0), RS | RT | UIMM }, | |
133 | { insn_invalid, 0, 0 } | |
134 | }; | |
135 | ||
136 | #undef M | |
137 | ||
138 | static inline __init u32 build_rs(u32 arg) | |
139 | { | |
140 | if (arg & ~RS_MASK) | |
141 | printk(KERN_WARNING "Micro-assembler field overflow\n"); | |
142 | ||
143 | return (arg & RS_MASK) << RS_SH; | |
144 | } | |
145 | ||
146 | static inline __init u32 build_rt(u32 arg) | |
147 | { | |
148 | if (arg & ~RT_MASK) | |
149 | printk(KERN_WARNING "Micro-assembler field overflow\n"); | |
150 | ||
151 | return (arg & RT_MASK) << RT_SH; | |
152 | } | |
153 | ||
154 | static inline __init u32 build_rd(u32 arg) | |
155 | { | |
156 | if (arg & ~RD_MASK) | |
157 | printk(KERN_WARNING "Micro-assembler field overflow\n"); | |
158 | ||
159 | return (arg & RD_MASK) << RD_SH; | |
160 | } | |
161 | ||
162 | static inline __init u32 build_re(u32 arg) | |
163 | { | |
164 | if (arg & ~RE_MASK) | |
165 | printk(KERN_WARNING "Micro-assembler field overflow\n"); | |
166 | ||
167 | return (arg & RE_MASK) << RE_SH; | |
168 | } | |
169 | ||
170 | static inline __init u32 build_simm(s32 arg) | |
171 | { | |
172 | if (arg > 0x7fff || arg < -0x8000) | |
173 | printk(KERN_WARNING "Micro-assembler field overflow\n"); | |
174 | ||
175 | return arg & 0xffff; | |
176 | } | |
177 | ||
178 | static inline __init u32 build_uimm(u32 arg) | |
179 | { | |
180 | if (arg & ~IMM_MASK) | |
181 | printk(KERN_WARNING "Micro-assembler field overflow\n"); | |
182 | ||
183 | return arg & IMM_MASK; | |
184 | } | |
185 | ||
186 | static inline __init u32 build_bimm(s32 arg) | |
187 | { | |
188 | if (arg > 0x1ffff || arg < -0x20000) | |
189 | printk(KERN_WARNING "Micro-assembler field overflow\n"); | |
190 | ||
191 | if (arg & 0x3) | |
192 | printk(KERN_WARNING "Invalid micro-assembler branch target\n"); | |
193 | ||
194 | return ((arg < 0) ? (1 << 15) : 0) | ((arg >> 2) & 0x7fff); | |
195 | } | |
196 | ||
197 | static inline __init u32 build_jimm(u32 arg) | |
198 | { | |
199 | if (arg & ~((JIMM_MASK) << 2)) | |
200 | printk(KERN_WARNING "Micro-assembler field overflow\n"); | |
201 | ||
202 | return (arg >> 2) & JIMM_MASK; | |
203 | } | |
204 | ||
205 | static inline __init u32 build_func(u32 arg) | |
206 | { | |
207 | if (arg & ~FUNC_MASK) | |
208 | printk(KERN_WARNING "Micro-assembler field overflow\n"); | |
209 | ||
210 | return arg & FUNC_MASK; | |
211 | } | |
212 | ||
213 | static inline __init u32 build_set(u32 arg) | |
214 | { | |
215 | if (arg & ~SET_MASK) | |
216 | printk(KERN_WARNING "Micro-assembler field overflow\n"); | |
217 | ||
218 | return arg & SET_MASK; | |
219 | } | |
220 | ||
221 | /* | |
222 | * The order of opcode arguments is implicitly left to right, | |
223 | * starting with RS and ending with FUNC or IMM. | |
224 | */ | |
225 | static void __init build_insn(u32 **buf, enum opcode opc, ...) | |
226 | { | |
227 | struct insn *ip = NULL; | |
228 | unsigned int i; | |
229 | va_list ap; | |
230 | u32 op; | |
231 | ||
232 | for (i = 0; insn_table[i].opcode != insn_invalid; i++) | |
233 | if (insn_table[i].opcode == opc) { | |
234 | ip = &insn_table[i]; | |
235 | break; | |
236 | } | |
237 | ||
238 | if (!ip || (opc == insn_daddiu && r4k_daddiu_bug())) | |
239 | panic("Unsupported Micro-assembler instruction %d", opc); | |
240 | ||
241 | op = ip->match; | |
242 | va_start(ap, opc); | |
243 | if (ip->fields & RS) | |
244 | op |= build_rs(va_arg(ap, u32)); | |
245 | if (ip->fields & RT) | |
246 | op |= build_rt(va_arg(ap, u32)); | |
247 | if (ip->fields & RD) | |
248 | op |= build_rd(va_arg(ap, u32)); | |
249 | if (ip->fields & RE) | |
250 | op |= build_re(va_arg(ap, u32)); | |
251 | if (ip->fields & SIMM) | |
252 | op |= build_simm(va_arg(ap, s32)); | |
253 | if (ip->fields & UIMM) | |
254 | op |= build_uimm(va_arg(ap, u32)); | |
255 | if (ip->fields & BIMM) | |
256 | op |= build_bimm(va_arg(ap, s32)); | |
257 | if (ip->fields & JIMM) | |
258 | op |= build_jimm(va_arg(ap, u32)); | |
259 | if (ip->fields & FUNC) | |
260 | op |= build_func(va_arg(ap, u32)); | |
261 | if (ip->fields & SET) | |
262 | op |= build_set(va_arg(ap, u32)); | |
263 | va_end(ap); | |
264 | ||
265 | **buf = op; | |
266 | (*buf)++; | |
267 | } | |
268 | ||
269 | #define I_u1u2u3(op) \ | |
270 | Ip_u1u2u3(op) \ | |
271 | { \ | |
272 | build_insn(buf, insn##op, a, b, c); \ | |
273 | } | |
274 | ||
275 | #define I_u2u1u3(op) \ | |
276 | Ip_u2u1u3(op) \ | |
277 | { \ | |
278 | build_insn(buf, insn##op, b, a, c); \ | |
279 | } | |
280 | ||
281 | #define I_u3u1u2(op) \ | |
282 | Ip_u3u1u2(op) \ | |
283 | { \ | |
284 | build_insn(buf, insn##op, b, c, a); \ | |
285 | } | |
286 | ||
287 | #define I_u1u2s3(op) \ | |
288 | Ip_u1u2s3(op) \ | |
289 | { \ | |
290 | build_insn(buf, insn##op, a, b, c); \ | |
291 | } | |
292 | ||
293 | #define I_u2s3u1(op) \ | |
294 | Ip_u2s3u1(op) \ | |
295 | { \ | |
296 | build_insn(buf, insn##op, c, a, b); \ | |
297 | } | |
298 | ||
299 | #define I_u2u1s3(op) \ | |
300 | Ip_u2u1s3(op) \ | |
301 | { \ | |
302 | build_insn(buf, insn##op, b, a, c); \ | |
303 | } | |
304 | ||
305 | #define I_u1u2(op) \ | |
306 | Ip_u1u2(op) \ | |
307 | { \ | |
308 | build_insn(buf, insn##op, a, b); \ | |
309 | } | |
310 | ||
311 | #define I_u1s2(op) \ | |
312 | Ip_u1s2(op) \ | |
313 | { \ | |
314 | build_insn(buf, insn##op, a, b); \ | |
315 | } | |
316 | ||
317 | #define I_u1(op) \ | |
318 | Ip_u1(op) \ | |
319 | { \ | |
320 | build_insn(buf, insn##op, a); \ | |
321 | } | |
322 | ||
323 | #define I_0(op) \ | |
324 | Ip_0(op) \ | |
325 | { \ | |
326 | build_insn(buf, insn##op); \ | |
327 | } | |
328 | ||
329 | I_u2u1s3(_addiu) | |
330 | I_u3u1u2(_addu) | |
331 | I_u2u1u3(_andi) | |
332 | I_u3u1u2(_and) | |
333 | I_u1u2s3(_beq) | |
334 | I_u1u2s3(_beql) | |
335 | I_u1s2(_bgez) | |
336 | I_u1s2(_bgezl) | |
337 | I_u1s2(_bltz) | |
338 | I_u1s2(_bltzl) | |
339 | I_u1u2s3(_bne) | |
340 | I_u1u2u3(_dmfc0) | |
341 | I_u1u2u3(_dmtc0) | |
342 | I_u2u1s3(_daddiu) | |
343 | I_u3u1u2(_daddu) | |
344 | I_u2u1u3(_dsll) | |
345 | I_u2u1u3(_dsll32) | |
346 | I_u2u1u3(_dsra) | |
347 | I_u2u1u3(_dsrl) | |
348 | I_u2u1u3(_dsrl32) | |
349 | I_u3u1u2(_dsubu) | |
350 | I_0(_eret) | |
351 | I_u1(_j) | |
352 | I_u1(_jal) | |
353 | I_u1(_jr) | |
354 | I_u2s3u1(_ld) | |
355 | I_u2s3u1(_ll) | |
356 | I_u2s3u1(_lld) | |
357 | I_u1s2(_lui) | |
358 | I_u2s3u1(_lw) | |
359 | I_u1u2u3(_mfc0) | |
360 | I_u1u2u3(_mtc0) | |
361 | I_u2u1u3(_ori) | |
362 | I_0(_rfe) | |
363 | I_u2s3u1(_sc) | |
364 | I_u2s3u1(_scd) | |
365 | I_u2s3u1(_sd) | |
366 | I_u2u1u3(_sll) | |
367 | I_u2u1u3(_sra) | |
368 | I_u2u1u3(_srl) | |
369 | I_u3u1u2(_subu) | |
370 | I_u2s3u1(_sw) | |
371 | I_0(_tlbp) | |
372 | I_0(_tlbwi) | |
373 | I_0(_tlbwr) | |
374 | I_u3u1u2(_xor) | |
375 | I_u2u1u3(_xori) | |
376 | ||
377 | /* Handle labels. */ | |
378 | void __init uasm_build_label(struct uasm_label **lab, u32 *addr, int lid) | |
379 | { | |
380 | (*lab)->addr = addr; | |
381 | (*lab)->lab = lid; | |
382 | (*lab)++; | |
383 | } | |
384 | ||
385 | int __init uasm_in_compat_space_p(long addr) | |
386 | { | |
387 | /* Is this address in 32bit compat space? */ | |
388 | #ifdef CONFIG_64BIT | |
389 | return (((addr) & 0xffffffff00000000L) == 0xffffffff00000000L); | |
390 | #else | |
391 | return 1; | |
392 | #endif | |
393 | } | |
394 | ||
395 | int __init uasm_rel_highest(long val) | |
396 | { | |
397 | #ifdef CONFIG_64BIT | |
398 | return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000; | |
399 | #else | |
400 | return 0; | |
401 | #endif | |
402 | } | |
403 | ||
404 | int __init uasm_rel_higher(long val) | |
405 | { | |
406 | #ifdef CONFIG_64BIT | |
407 | return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000; | |
408 | #else | |
409 | return 0; | |
410 | #endif | |
411 | } | |
412 | ||
413 | int __init uasm_rel_hi(long val) | |
414 | { | |
415 | return ((((val + 0x8000L) >> 16) & 0xffff) ^ 0x8000) - 0x8000; | |
416 | } | |
417 | ||
418 | int __init uasm_rel_lo(long val) | |
419 | { | |
420 | return ((val & 0xffff) ^ 0x8000) - 0x8000; | |
421 | } | |
422 | ||
423 | void __init UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr) | |
424 | { | |
425 | if (!uasm_in_compat_space_p(addr)) { | |
426 | uasm_i_lui(buf, rs, uasm_rel_highest(addr)); | |
427 | if (uasm_rel_higher(addr)) | |
428 | uasm_i_daddiu(buf, rs, rs, uasm_rel_higher(addr)); | |
429 | if (uasm_rel_hi(addr)) { | |
430 | uasm_i_dsll(buf, rs, rs, 16); | |
431 | uasm_i_daddiu(buf, rs, rs, uasm_rel_hi(addr)); | |
432 | uasm_i_dsll(buf, rs, rs, 16); | |
433 | } else | |
434 | uasm_i_dsll32(buf, rs, rs, 0); | |
435 | } else | |
436 | uasm_i_lui(buf, rs, uasm_rel_hi(addr)); | |
437 | } | |
438 | ||
439 | void __init UASM_i_LA(u32 **buf, unsigned int rs, long addr) | |
440 | { | |
441 | UASM_i_LA_mostly(buf, rs, addr); | |
442 | if (uasm_rel_lo(addr)) { | |
443 | if (!uasm_in_compat_space_p(addr)) | |
444 | uasm_i_daddiu(buf, rs, rs, uasm_rel_lo(addr)); | |
445 | else | |
446 | uasm_i_addiu(buf, rs, rs, uasm_rel_lo(addr)); | |
447 | } | |
448 | } | |
449 | ||
450 | /* Handle relocations. */ | |
451 | void __init | |
452 | uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid) | |
453 | { | |
454 | (*rel)->addr = addr; | |
455 | (*rel)->type = R_MIPS_PC16; | |
456 | (*rel)->lab = lid; | |
457 | (*rel)++; | |
458 | } | |
459 | ||
460 | static inline void __init | |
461 | __resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab) | |
462 | { | |
463 | long laddr = (long)lab->addr; | |
464 | long raddr = (long)rel->addr; | |
465 | ||
466 | switch (rel->type) { | |
467 | case R_MIPS_PC16: | |
468 | *rel->addr |= build_bimm(laddr - (raddr + 4)); | |
469 | break; | |
470 | ||
471 | default: | |
472 | panic("Unsupported Micro-assembler relocation %d", | |
473 | rel->type); | |
474 | } | |
475 | } | |
476 | ||
477 | void __init | |
478 | uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab) | |
479 | { | |
480 | struct uasm_label *l; | |
481 | ||
482 | for (; rel->lab != UASM_LABEL_INVALID; rel++) | |
483 | for (l = lab; l->lab != UASM_LABEL_INVALID; l++) | |
484 | if (rel->lab == l->lab) | |
485 | __resolve_relocs(rel, l); | |
486 | } | |
487 | ||
488 | void __init | |
489 | uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off) | |
490 | { | |
491 | for (; rel->lab != UASM_LABEL_INVALID; rel++) | |
492 | if (rel->addr >= first && rel->addr < end) | |
493 | rel->addr += off; | |
494 | } | |
495 | ||
496 | void __init | |
497 | uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off) | |
498 | { | |
499 | for (; lab->lab != UASM_LABEL_INVALID; lab++) | |
500 | if (lab->addr >= first && lab->addr < end) | |
501 | lab->addr += off; | |
502 | } | |
503 | ||
504 | void __init | |
505 | uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, u32 *first, | |
506 | u32 *end, u32 *target) | |
507 | { | |
508 | long off = (long)(target - first); | |
509 | ||
510 | memcpy(target, first, (end - first) * sizeof(u32)); | |
511 | ||
512 | uasm_move_relocs(rel, first, end, off); | |
513 | uasm_move_labels(lab, first, end, off); | |
514 | } | |
515 | ||
516 | int __init uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr) | |
517 | { | |
518 | for (; rel->lab != UASM_LABEL_INVALID; rel++) { | |
519 | if (rel->addr == addr | |
520 | && (rel->type == R_MIPS_PC16 | |
521 | || rel->type == R_MIPS_26)) | |
522 | return 1; | |
523 | } | |
524 | ||
525 | return 0; | |
526 | } | |
527 | ||
528 | /* Convenience functions for labeled branches. */ | |
529 | void __init | |
530 | uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) | |
531 | { | |
532 | uasm_r_mips_pc16(r, *p, lid); | |
533 | uasm_i_bltz(p, reg, 0); | |
534 | } | |
535 | ||
536 | void __init | |
537 | uasm_il_b(u32 **p, struct uasm_reloc **r, int lid) | |
538 | { | |
539 | uasm_r_mips_pc16(r, *p, lid); | |
540 | uasm_i_b(p, 0); | |
541 | } | |
542 | ||
543 | void __init | |
544 | uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) | |
545 | { | |
546 | uasm_r_mips_pc16(r, *p, lid); | |
547 | uasm_i_beqz(p, reg, 0); | |
548 | } | |
549 | ||
550 | void __init | |
551 | uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) | |
552 | { | |
553 | uasm_r_mips_pc16(r, *p, lid); | |
554 | uasm_i_beqzl(p, reg, 0); | |
555 | } | |
556 | ||
557 | void __init | |
558 | uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) | |
559 | { | |
560 | uasm_r_mips_pc16(r, *p, lid); | |
561 | uasm_i_bnez(p, reg, 0); | |
562 | } | |
563 | ||
564 | void __init | |
565 | uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) | |
566 | { | |
567 | uasm_r_mips_pc16(r, *p, lid); | |
568 | uasm_i_bgezl(p, reg, 0); | |
569 | } | |
570 | ||
571 | void __init | |
572 | uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) | |
573 | { | |
574 | uasm_r_mips_pc16(r, *p, lid); | |
575 | uasm_i_bgez(p, reg, 0); | |
576 | } |