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19#include "qemu/osdep.h"
20#include "qemu.h"
21#include "signal-common.h"
22#include "linux-user/trace.h"
23
24#define __SUNOS_MAXWIN 31
25
26
27struct target_sigcontext {
28 abi_ulong sigc_onstack;
29
30 abi_ulong sigc_mask;
31 abi_ulong sigc_sp;
32 abi_ulong sigc_pc;
33 abi_ulong sigc_npc;
34 abi_ulong sigc_psr;
35 abi_ulong sigc_g1;
36 abi_ulong sigc_o0;
37
38
39
40
41 abi_ulong sigc_oswins;
42
43
44 char *sigc_spbuf[__SUNOS_MAXWIN];
45
46
47 struct {
48 abi_ulong locals[8];
49 abi_ulong ins[8];
50 } sigc_wbuf[__SUNOS_MAXWIN];
51};
52
53struct sparc_stackf {
54 abi_ulong locals[8];
55 abi_ulong ins[8];
56
57
58
59 char *structptr;
60 abi_ulong xargs[6];
61 abi_ulong xxargs[1];
62};
63
64typedef struct {
65 struct {
66 abi_ulong psr;
67 abi_ulong pc;
68 abi_ulong npc;
69 abi_ulong y;
70 abi_ulong u_regs[16];
71 } si_regs;
72 int si_mask;
73} __siginfo_t;
74
75typedef struct {
76 abi_ulong si_float_regs[32];
77 unsigned long si_fsr;
78 unsigned long si_fpqdepth;
79 struct {
80 unsigned long *insn_addr;
81 unsigned long insn;
82 } si_fpqueue [16];
83} qemu_siginfo_fpu_t;
84
85
86struct target_signal_frame {
87 struct sparc_stackf ss;
88 __siginfo_t info;
89 abi_ulong fpu_save;
90 uint32_t insns[2] QEMU_ALIGNED(8);
91 abi_ulong extramask[TARGET_NSIG_WORDS - 1];
92 abi_ulong extra_size;
93 qemu_siginfo_fpu_t fpu_state;
94};
95struct target_rt_signal_frame {
96 struct sparc_stackf ss;
97 siginfo_t info;
98 abi_ulong regs[20];
99 sigset_t mask;
100 abi_ulong fpu_save;
101 uint32_t insns[2];
102 stack_t stack;
103 unsigned int extra_size;
104 qemu_siginfo_fpu_t fpu_state;
105};
106
107static inline abi_ulong get_sigframe(struct target_sigaction *sa,
108 CPUSPARCState *env,
109 unsigned long framesize)
110{
111 abi_ulong sp = get_sp_from_cpustate(env);
112
113
114
115
116
117 if (on_sig_stack(sp) && !likely(on_sig_stack(sp - framesize))) {
118 return -1;
119 }
120
121
122 sp = target_sigsp(sp, sa) - framesize;
123
124
125
126
127
128
129
130 sp &= ~15UL;
131
132 return sp;
133}
134
135static int
136setup___siginfo(__siginfo_t *si, CPUSPARCState *env, abi_ulong mask)
137{
138 int err = 0, i;
139
140 __put_user(env->psr, &si->si_regs.psr);
141 __put_user(env->pc, &si->si_regs.pc);
142 __put_user(env->npc, &si->si_regs.npc);
143 __put_user(env->y, &si->si_regs.y);
144 for (i=0; i < 8; i++) {
145 __put_user(env->gregs[i], &si->si_regs.u_regs[i]);
146 }
147 for (i=0; i < 8; i++) {
148 __put_user(env->regwptr[WREG_O0 + i], &si->si_regs.u_regs[i + 8]);
149 }
150 __put_user(mask, &si->si_mask);
151 return err;
152}
153
154#define NF_ALIGNEDSZ (((sizeof(struct target_signal_frame) + 7) & (~7)))
155
156void setup_frame(int sig, struct target_sigaction *ka,
157 target_sigset_t *set, CPUSPARCState *env)
158{
159 abi_ulong sf_addr;
160 struct target_signal_frame *sf;
161 int sigframe_size, err, i;
162
163
164
165
166 sigframe_size = NF_ALIGNEDSZ;
167 sf_addr = get_sigframe(ka, env, sigframe_size);
168 trace_user_setup_frame(env, sf_addr);
169
170 sf = lock_user(VERIFY_WRITE, sf_addr,
171 sizeof(struct target_signal_frame), 0);
172 if (!sf) {
173 goto sigsegv;
174 }
175#if 0
176 if (invalid_frame_pointer(sf, sigframe_size))
177 goto sigill_and_return;
178#endif
179
180 err = setup___siginfo(&sf->info, env, set->sig[0]);
181 __put_user(0, &sf->extra_size);
182
183
184
185
186 __put_user(set->sig[0], &sf->info.si_mask);
187 for (i = 0; i < TARGET_NSIG_WORDS - 1; i++) {
188 __put_user(set->sig[i + 1], &sf->extramask[i]);
189 }
190
191 for (i = 0; i < 8; i++) {
192 __put_user(env->regwptr[i + WREG_L0], &sf->ss.locals[i]);
193 }
194 for (i = 0; i < 8; i++) {
195 __put_user(env->regwptr[i + WREG_I0], &sf->ss.ins[i]);
196 }
197 if (err)
198 goto sigsegv;
199
200
201 env->regwptr[WREG_SP] = sf_addr;
202 env->regwptr[WREG_O0] = sig;
203 env->regwptr[WREG_O1] = sf_addr +
204 offsetof(struct target_signal_frame, info);
205 env->regwptr[WREG_O2] = sf_addr +
206 offsetof(struct target_signal_frame, info);
207
208
209 env->pc = ka->_sa_handler;
210 env->npc = (env->pc + 4);
211
212 if (ka->ka_restorer) {
213 env->regwptr[WREG_O7] = ka->ka_restorer;
214 } else {
215 uint32_t val32;
216
217 env->regwptr[WREG_O7] = sf_addr +
218 offsetof(struct target_signal_frame, insns) - 2 * 4;
219
220
221 val32 = 0x821020d8;
222 __put_user(val32, &sf->insns[0]);
223
224
225 val32 = 0x91d02010;
226 __put_user(val32, &sf->insns[1]);
227 }
228 unlock_user(sf, sf_addr, sizeof(struct target_signal_frame));
229 return;
230#if 0
231sigill_and_return:
232 force_sig(TARGET_SIGILL);
233#endif
234sigsegv:
235 unlock_user(sf, sf_addr, sizeof(struct target_signal_frame));
236 force_sigsegv(sig);
237}
238
239void setup_rt_frame(int sig, struct target_sigaction *ka,
240 target_siginfo_t *info,
241 target_sigset_t *set, CPUSPARCState *env)
242{
243 qemu_log_mask(LOG_UNIMP, "setup_rt_frame: not implemented\n");
244}
245
246long do_sigreturn(CPUSPARCState *env)
247{
248 abi_ulong sf_addr;
249 struct target_signal_frame *sf;
250 abi_ulong up_psr, pc, npc;
251 target_sigset_t set;
252 sigset_t host_set;
253 int i;
254
255 sf_addr = env->regwptr[WREG_SP];
256 trace_user_do_sigreturn(env, sf_addr);
257 if (!lock_user_struct(VERIFY_READ, sf, sf_addr, 1)) {
258 goto segv_and_exit;
259 }
260
261
262
263 if (sf_addr & 3)
264 goto segv_and_exit;
265
266 __get_user(pc, &sf->info.si_regs.pc);
267 __get_user(npc, &sf->info.si_regs.npc);
268
269 if ((pc | npc) & 3) {
270 goto segv_and_exit;
271 }
272
273
274 __get_user(up_psr, &sf->info.si_regs.psr);
275
276
277 env->psr = (up_psr & (PSR_ICC ))
278 | (env->psr & ~(PSR_ICC ));
279
280 env->pc = pc;
281 env->npc = npc;
282 __get_user(env->y, &sf->info.si_regs.y);
283 for (i=0; i < 8; i++) {
284 __get_user(env->gregs[i], &sf->info.si_regs.u_regs[i]);
285 }
286 for (i=0; i < 8; i++) {
287 __get_user(env->regwptr[i + WREG_O0], &sf->info.si_regs.u_regs[i + 8]);
288 }
289
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300
301
302 __get_user(set.sig[0], &sf->info.si_mask);
303 for(i = 1; i < TARGET_NSIG_WORDS; i++) {
304 __get_user(set.sig[i], &sf->extramask[i - 1]);
305 }
306
307 target_to_host_sigset_internal(&host_set, &set);
308 set_sigmask(&host_set);
309
310 unlock_user_struct(sf, sf_addr, 0);
311 return -TARGET_QEMU_ESIGRETURN;
312
313segv_and_exit:
314 unlock_user_struct(sf, sf_addr, 0);
315 force_sig(TARGET_SIGSEGV);
316 return -TARGET_QEMU_ESIGRETURN;
317}
318
319long do_rt_sigreturn(CPUSPARCState *env)
320{
321 trace_user_do_rt_sigreturn(env, 0);
322 qemu_log_mask(LOG_UNIMP, "do_rt_sigreturn: not implemented\n");
323 return -TARGET_ENOSYS;
324}
325
326#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
327#define SPARC_MC_TSTATE 0
328#define SPARC_MC_PC 1
329#define SPARC_MC_NPC 2
330#define SPARC_MC_Y 3
331#define SPARC_MC_G1 4
332#define SPARC_MC_G2 5
333#define SPARC_MC_G3 6
334#define SPARC_MC_G4 7
335#define SPARC_MC_G5 8
336#define SPARC_MC_G6 9
337#define SPARC_MC_G7 10
338#define SPARC_MC_O0 11
339#define SPARC_MC_O1 12
340#define SPARC_MC_O2 13
341#define SPARC_MC_O3 14
342#define SPARC_MC_O4 15
343#define SPARC_MC_O5 16
344#define SPARC_MC_O6 17
345#define SPARC_MC_O7 18
346#define SPARC_MC_NGREG 19
347
348typedef abi_ulong target_mc_greg_t;
349typedef target_mc_greg_t target_mc_gregset_t[SPARC_MC_NGREG];
350
351struct target_mc_fq {
352 abi_ulong mcfq_addr;
353 uint32_t mcfq_insn;
354};
355
356
357
358
359
360
361struct target_mc_fpu {
362 union {
363 uint32_t sregs[32];
364 uint64_t dregs[32];
365
366 } mcfpu_fregs;
367 abi_ulong mcfpu_fsr;
368 abi_ulong mcfpu_fprs;
369 abi_ulong mcfpu_gsr;
370 abi_ulong mcfpu_fq;
371 unsigned char mcfpu_qcnt;
372 unsigned char mcfpu_qentsz;
373 unsigned char mcfpu_enab;
374} __attribute__((aligned(16)));
375typedef struct target_mc_fpu target_mc_fpu_t;
376
377typedef struct {
378 target_mc_gregset_t mc_gregs;
379 target_mc_greg_t mc_fp;
380 target_mc_greg_t mc_i7;
381 target_mc_fpu_t mc_fpregs;
382} target_mcontext_t;
383
384struct target_ucontext {
385 abi_ulong tuc_link;
386 abi_ulong tuc_flags;
387 target_sigset_t tuc_sigmask;
388 target_mcontext_t tuc_mcontext;
389};
390
391
392struct target_reg_window {
393 abi_ulong locals[8];
394 abi_ulong ins[8];
395};
396
397#define TARGET_STACK_BIAS 2047
398
399
400void sparc64_set_context(CPUSPARCState *env)
401{
402 abi_ulong ucp_addr;
403 struct target_ucontext *ucp;
404 target_mc_gregset_t *grp;
405 target_mc_fpu_t *fpup;
406 abi_ulong pc, npc, tstate;
407 unsigned int i;
408 unsigned char fenab;
409
410 ucp_addr = env->regwptr[WREG_O0];
411 if (!lock_user_struct(VERIFY_READ, ucp, ucp_addr, 1)) {
412 goto do_sigsegv;
413 }
414 grp = &ucp->tuc_mcontext.mc_gregs;
415 __get_user(pc, &((*grp)[SPARC_MC_PC]));
416 __get_user(npc, &((*grp)[SPARC_MC_NPC]));
417 if ((pc | npc) & 3) {
418 goto do_sigsegv;
419 }
420 if (env->regwptr[WREG_O1]) {
421 target_sigset_t target_set;
422 sigset_t set;
423
424 if (TARGET_NSIG_WORDS == 1) {
425 __get_user(target_set.sig[0], &ucp->tuc_sigmask.sig[0]);
426 } else {
427 abi_ulong *src, *dst;
428 src = ucp->tuc_sigmask.sig;
429 dst = target_set.sig;
430 for (i = 0; i < TARGET_NSIG_WORDS; i++, dst++, src++) {
431 __get_user(*dst, src);
432 }
433 }
434 target_to_host_sigset_internal(&set, &target_set);
435 set_sigmask(&set);
436 }
437 env->pc = pc;
438 env->npc = npc;
439 __get_user(env->y, &((*grp)[SPARC_MC_Y]));
440 __get_user(tstate, &((*grp)[SPARC_MC_TSTATE]));
441
442 env->asi = (tstate >> 24) & 0xff;
443 cpu_put_ccr(env, (tstate >> 32) & 0xff);
444 __get_user(env->gregs[1], (&(*grp)[SPARC_MC_G1]));
445 __get_user(env->gregs[2], (&(*grp)[SPARC_MC_G2]));
446 __get_user(env->gregs[3], (&(*grp)[SPARC_MC_G3]));
447 __get_user(env->gregs[4], (&(*grp)[SPARC_MC_G4]));
448 __get_user(env->gregs[5], (&(*grp)[SPARC_MC_G5]));
449 __get_user(env->gregs[6], (&(*grp)[SPARC_MC_G6]));
450
451
452
453
454
455
456
457
458
459
460 __get_user(env->regwptr[WREG_O0], (&(*grp)[SPARC_MC_O0]));
461 __get_user(env->regwptr[WREG_O1], (&(*grp)[SPARC_MC_O1]));
462 __get_user(env->regwptr[WREG_O2], (&(*grp)[SPARC_MC_O2]));
463 __get_user(env->regwptr[WREG_O3], (&(*grp)[SPARC_MC_O3]));
464 __get_user(env->regwptr[WREG_O4], (&(*grp)[SPARC_MC_O4]));
465 __get_user(env->regwptr[WREG_O5], (&(*grp)[SPARC_MC_O5]));
466 __get_user(env->regwptr[WREG_O6], (&(*grp)[SPARC_MC_O6]));
467 __get_user(env->regwptr[WREG_O7], (&(*grp)[SPARC_MC_O7]));
468
469 __get_user(env->regwptr[WREG_FP], &(ucp->tuc_mcontext.mc_fp));
470 __get_user(env->regwptr[WREG_I7], &(ucp->tuc_mcontext.mc_i7));
471
472 fpup = &ucp->tuc_mcontext.mc_fpregs;
473
474 __get_user(fenab, &(fpup->mcfpu_enab));
475 if (fenab) {
476 abi_ulong fprs;
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494 __get_user(fprs, &(fpup->mcfpu_fprs));
495 if (fprs & FPRS_DL) {
496 for (i = 0; i < 16; i++) {
497 __get_user(env->fpr[i].ll, &(fpup->mcfpu_fregs.dregs[i]));
498 }
499 }
500 if (fprs & FPRS_DU) {
501 for (i = 16; i < 32; i++) {
502 __get_user(env->fpr[i].ll, &(fpup->mcfpu_fregs.dregs[i]));
503 }
504 }
505 __get_user(env->fsr, &(fpup->mcfpu_fsr));
506 __get_user(env->gsr, &(fpup->mcfpu_gsr));
507 }
508 unlock_user_struct(ucp, ucp_addr, 0);
509 return;
510do_sigsegv:
511 unlock_user_struct(ucp, ucp_addr, 0);
512 force_sig(TARGET_SIGSEGV);
513}
514
515void sparc64_get_context(CPUSPARCState *env)
516{
517 abi_ulong ucp_addr;
518 struct target_ucontext *ucp;
519 target_mc_gregset_t *grp;
520 target_mcontext_t *mcp;
521 int err;
522 unsigned int i;
523 target_sigset_t target_set;
524 sigset_t set;
525
526 ucp_addr = env->regwptr[WREG_O0];
527 if (!lock_user_struct(VERIFY_WRITE, ucp, ucp_addr, 0)) {
528 goto do_sigsegv;
529 }
530
531 memset(ucp, 0, sizeof(*ucp));
532
533 mcp = &ucp->tuc_mcontext;
534 grp = &mcp->mc_gregs;
535
536
537 env->pc = env->npc;
538 env->npc += 4;
539
540
541
542
543
544
545 err = do_sigprocmask(0, NULL, &set);
546 assert(err == 0);
547 host_to_target_sigset_internal(&target_set, &set);
548 if (TARGET_NSIG_WORDS == 1) {
549 __put_user(target_set.sig[0],
550 (abi_ulong *)&ucp->tuc_sigmask);
551 } else {
552 abi_ulong *src, *dst;
553 src = target_set.sig;
554 dst = ucp->tuc_sigmask.sig;
555 for (i = 0; i < TARGET_NSIG_WORDS; i++, dst++, src++) {
556 __put_user(*src, dst);
557 }
558 }
559
560 __put_user(sparc64_tstate(env), &((*grp)[SPARC_MC_TSTATE]));
561 __put_user(env->pc, &((*grp)[SPARC_MC_PC]));
562 __put_user(env->npc, &((*grp)[SPARC_MC_NPC]));
563 __put_user(env->y, &((*grp)[SPARC_MC_Y]));
564 __put_user(env->gregs[1], &((*grp)[SPARC_MC_G1]));
565 __put_user(env->gregs[2], &((*grp)[SPARC_MC_G2]));
566 __put_user(env->gregs[3], &((*grp)[SPARC_MC_G3]));
567 __put_user(env->gregs[4], &((*grp)[SPARC_MC_G4]));
568 __put_user(env->gregs[5], &((*grp)[SPARC_MC_G5]));
569 __put_user(env->gregs[6], &((*grp)[SPARC_MC_G6]));
570 __put_user(env->gregs[7], &((*grp)[SPARC_MC_G7]));
571
572
573
574
575
576
577
578
579
580 __put_user(env->regwptr[WREG_O0], &((*grp)[SPARC_MC_O0]));
581 __put_user(env->regwptr[WREG_O1], &((*grp)[SPARC_MC_O1]));
582 __put_user(env->regwptr[WREG_O2], &((*grp)[SPARC_MC_O2]));
583 __put_user(env->regwptr[WREG_O3], &((*grp)[SPARC_MC_O3]));
584 __put_user(env->regwptr[WREG_O4], &((*grp)[SPARC_MC_O4]));
585 __put_user(env->regwptr[WREG_O5], &((*grp)[SPARC_MC_O5]));
586 __put_user(env->regwptr[WREG_O6], &((*grp)[SPARC_MC_O6]));
587 __put_user(env->regwptr[WREG_O7], &((*grp)[SPARC_MC_O7]));
588
589 __put_user(env->regwptr[WREG_FP], &(mcp->mc_fp));
590 __put_user(env->regwptr[WREG_I7], &(mcp->mc_i7));
591
592
593
594
595
596
597
598 unlock_user_struct(ucp, ucp_addr, 1);
599 return;
600do_sigsegv:
601 unlock_user_struct(ucp, ucp_addr, 1);
602 force_sig(TARGET_SIGSEGV);
603}
604#endif
605