1 /* 2 * Emulation of Linux signals 3 * 4 * Copyright (c) 2003 Fabrice Bellard 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 #include "qemu/osdep.h" 20 #include "qemu.h" 21 #include "target_signal.h" 22 #include "signal-common.h" 23 #include "linux-user/trace.h" 24 25 #define __SUNOS_MAXWIN 31 26 27 /* This is what SunOS does, so shall I. */ 28 struct target_sigcontext { 29 abi_ulong sigc_onstack; /* state to restore */ 30 31 abi_ulong sigc_mask; /* sigmask to restore */ 32 abi_ulong sigc_sp; /* stack pointer */ 33 abi_ulong sigc_pc; /* program counter */ 34 abi_ulong sigc_npc; /* next program counter */ 35 abi_ulong sigc_psr; /* for condition codes etc */ 36 abi_ulong sigc_g1; /* User uses these two registers */ 37 abi_ulong sigc_o0; /* within the trampoline code. */ 38 39 /* Now comes information regarding the users window set 40 * at the time of the signal. 41 */ 42 abi_ulong sigc_oswins; /* outstanding windows */ 43 44 /* stack ptrs for each regwin buf */ 45 char *sigc_spbuf[__SUNOS_MAXWIN]; 46 47 /* Windows to restore after signal */ 48 struct { 49 abi_ulong locals[8]; 50 abi_ulong ins[8]; 51 } sigc_wbuf[__SUNOS_MAXWIN]; 52 }; 53 /* A Sparc stack frame */ 54 struct sparc_stackf { 55 abi_ulong locals[8]; 56 abi_ulong ins[8]; 57 /* It's simpler to treat fp and callers_pc as elements of ins[] 58 * since we never need to access them ourselves. 59 */ 60 char *structptr; 61 abi_ulong xargs[6]; 62 abi_ulong xxargs[1]; 63 }; 64 65 typedef struct { 66 struct { 67 abi_ulong psr; 68 abi_ulong pc; 69 abi_ulong npc; 70 abi_ulong y; 71 abi_ulong u_regs[16]; /* globals and ins */ 72 } si_regs; 73 int si_mask; 74 } __siginfo_t; 75 76 typedef struct { 77 abi_ulong si_float_regs[32]; 78 unsigned long si_fsr; 79 unsigned long si_fpqdepth; 80 struct { 81 unsigned long *insn_addr; 82 unsigned long insn; 83 } si_fpqueue [16]; 84 } qemu_siginfo_fpu_t; 85 86 87 struct target_signal_frame { 88 struct sparc_stackf ss; 89 __siginfo_t info; 90 abi_ulong fpu_save; 91 abi_ulong insns[2] __attribute__ ((aligned (8))); 92 abi_ulong extramask[TARGET_NSIG_WORDS - 1]; 93 abi_ulong extra_size; /* Should be 0 */ 94 qemu_siginfo_fpu_t fpu_state; 95 }; 96 struct target_rt_signal_frame { 97 struct sparc_stackf ss; 98 siginfo_t info; 99 abi_ulong regs[20]; 100 sigset_t mask; 101 abi_ulong fpu_save; 102 unsigned int insns[2]; 103 stack_t stack; 104 unsigned int extra_size; /* Should be 0 */ 105 qemu_siginfo_fpu_t fpu_state; 106 }; 107 108 #define UREG_O0 16 109 #define UREG_O6 22 110 #define UREG_I0 0 111 #define UREG_I1 1 112 #define UREG_I2 2 113 #define UREG_I3 3 114 #define UREG_I4 4 115 #define UREG_I5 5 116 #define UREG_I6 6 117 #define UREG_I7 7 118 #define UREG_L0 8 119 #define UREG_FP UREG_I6 120 #define UREG_SP UREG_O6 121 122 static inline abi_ulong get_sigframe(struct target_sigaction *sa, 123 CPUSPARCState *env, 124 unsigned long framesize) 125 { 126 abi_ulong sp = get_sp_from_cpustate(env); 127 128 /* 129 * If we are on the alternate signal stack and would overflow it, don't. 130 * Return an always-bogus address instead so we will die with SIGSEGV. 131 */ 132 if (on_sig_stack(sp) && !likely(on_sig_stack(sp - framesize))) { 133 return -1; 134 } 135 136 /* This is the X/Open sanctioned signal stack switching. */ 137 sp = target_sigsp(sp, sa) - framesize; 138 139 /* Always align the stack frame. This handles two cases. First, 140 * sigaltstack need not be mindful of platform specific stack 141 * alignment. Second, if we took this signal because the stack 142 * is not aligned properly, we'd like to take the signal cleanly 143 * and report that. 144 */ 145 sp &= ~15UL; 146 147 return sp; 148 } 149 150 static int 151 setup___siginfo(__siginfo_t *si, CPUSPARCState *env, abi_ulong mask) 152 { 153 int err = 0, i; 154 155 __put_user(env->psr, &si->si_regs.psr); 156 __put_user(env->pc, &si->si_regs.pc); 157 __put_user(env->npc, &si->si_regs.npc); 158 __put_user(env->y, &si->si_regs.y); 159 for (i=0; i < 8; i++) { 160 __put_user(env->gregs[i], &si->si_regs.u_regs[i]); 161 } 162 for (i=0; i < 8; i++) { 163 __put_user(env->regwptr[UREG_I0 + i], &si->si_regs.u_regs[i+8]); 164 } 165 __put_user(mask, &si->si_mask); 166 return err; 167 } 168 169 #if 0 170 static int 171 setup_sigcontext(struct target_sigcontext *sc, /*struct _fpstate *fpstate,*/ 172 CPUSPARCState *env, unsigned long mask) 173 { 174 int err = 0; 175 176 __put_user(mask, &sc->sigc_mask); 177 __put_user(env->regwptr[UREG_SP], &sc->sigc_sp); 178 __put_user(env->pc, &sc->sigc_pc); 179 __put_user(env->npc, &sc->sigc_npc); 180 __put_user(env->psr, &sc->sigc_psr); 181 __put_user(env->gregs[1], &sc->sigc_g1); 182 __put_user(env->regwptr[UREG_O0], &sc->sigc_o0); 183 184 return err; 185 } 186 #endif 187 #define NF_ALIGNEDSZ (((sizeof(struct target_signal_frame) + 7) & (~7))) 188 189 void setup_frame(int sig, struct target_sigaction *ka, 190 target_sigset_t *set, CPUSPARCState *env) 191 { 192 abi_ulong sf_addr; 193 struct target_signal_frame *sf; 194 int sigframe_size, err, i; 195 196 /* 1. Make sure everything is clean */ 197 //synchronize_user_stack(); 198 199 sigframe_size = NF_ALIGNEDSZ; 200 sf_addr = get_sigframe(ka, env, sigframe_size); 201 trace_user_setup_frame(env, sf_addr); 202 203 sf = lock_user(VERIFY_WRITE, sf_addr, 204 sizeof(struct target_signal_frame), 0); 205 if (!sf) { 206 goto sigsegv; 207 } 208 #if 0 209 if (invalid_frame_pointer(sf, sigframe_size)) 210 goto sigill_and_return; 211 #endif 212 /* 2. Save the current process state */ 213 err = setup___siginfo(&sf->info, env, set->sig[0]); 214 __put_user(0, &sf->extra_size); 215 216 //save_fpu_state(regs, &sf->fpu_state); 217 //__put_user(&sf->fpu_state, &sf->fpu_save); 218 219 __put_user(set->sig[0], &sf->info.si_mask); 220 for (i = 0; i < TARGET_NSIG_WORDS - 1; i++) { 221 __put_user(set->sig[i + 1], &sf->extramask[i]); 222 } 223 224 for (i = 0; i < 8; i++) { 225 __put_user(env->regwptr[i + UREG_L0], &sf->ss.locals[i]); 226 } 227 for (i = 0; i < 8; i++) { 228 __put_user(env->regwptr[i + UREG_I0], &sf->ss.ins[i]); 229 } 230 if (err) 231 goto sigsegv; 232 233 /* 3. signal handler back-trampoline and parameters */ 234 env->regwptr[UREG_FP] = sf_addr; 235 env->regwptr[UREG_I0] = sig; 236 env->regwptr[UREG_I1] = sf_addr + 237 offsetof(struct target_signal_frame, info); 238 env->regwptr[UREG_I2] = sf_addr + 239 offsetof(struct target_signal_frame, info); 240 241 /* 4. signal handler */ 242 env->pc = ka->_sa_handler; 243 env->npc = (env->pc + 4); 244 /* 5. return to kernel instructions */ 245 if (ka->ka_restorer) { 246 env->regwptr[UREG_I7] = ka->ka_restorer; 247 } else { 248 uint32_t val32; 249 250 env->regwptr[UREG_I7] = sf_addr + 251 offsetof(struct target_signal_frame, insns) - 2 * 4; 252 253 /* mov __NR_sigreturn, %g1 */ 254 val32 = 0x821020d8; 255 __put_user(val32, &sf->insns[0]); 256 257 /* t 0x10 */ 258 val32 = 0x91d02010; 259 __put_user(val32, &sf->insns[1]); 260 if (err) 261 goto sigsegv; 262 263 /* Flush instruction space. */ 264 // flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0])); 265 // tb_flush(env); 266 } 267 unlock_user(sf, sf_addr, sizeof(struct target_signal_frame)); 268 return; 269 #if 0 270 sigill_and_return: 271 force_sig(TARGET_SIGILL); 272 #endif 273 sigsegv: 274 unlock_user(sf, sf_addr, sizeof(struct target_signal_frame)); 275 force_sigsegv(sig); 276 } 277 278 void setup_rt_frame(int sig, struct target_sigaction *ka, 279 target_siginfo_t *info, 280 target_sigset_t *set, CPUSPARCState *env) 281 { 282 fprintf(stderr, "setup_rt_frame: not implemented\n"); 283 } 284 285 long do_sigreturn(CPUSPARCState *env) 286 { 287 abi_ulong sf_addr; 288 struct target_signal_frame *sf; 289 uint32_t up_psr, pc, npc; 290 target_sigset_t set; 291 sigset_t host_set; 292 int err=0, i; 293 294 sf_addr = env->regwptr[UREG_FP]; 295 trace_user_do_sigreturn(env, sf_addr); 296 if (!lock_user_struct(VERIFY_READ, sf, sf_addr, 1)) { 297 goto segv_and_exit; 298 } 299 300 /* 1. Make sure we are not getting garbage from the user */ 301 302 if (sf_addr & 3) 303 goto segv_and_exit; 304 305 __get_user(pc, &sf->info.si_regs.pc); 306 __get_user(npc, &sf->info.si_regs.npc); 307 308 if ((pc | npc) & 3) { 309 goto segv_and_exit; 310 } 311 312 /* 2. Restore the state */ 313 __get_user(up_psr, &sf->info.si_regs.psr); 314 315 /* User can only change condition codes and FPU enabling in %psr. */ 316 env->psr = (up_psr & (PSR_ICC /* | PSR_EF */)) 317 | (env->psr & ~(PSR_ICC /* | PSR_EF */)); 318 319 env->pc = pc; 320 env->npc = npc; 321 __get_user(env->y, &sf->info.si_regs.y); 322 for (i=0; i < 8; i++) { 323 __get_user(env->gregs[i], &sf->info.si_regs.u_regs[i]); 324 } 325 for (i=0; i < 8; i++) { 326 __get_user(env->regwptr[i + UREG_I0], &sf->info.si_regs.u_regs[i+8]); 327 } 328 329 /* FIXME: implement FPU save/restore: 330 * __get_user(fpu_save, &sf->fpu_save); 331 * if (fpu_save) 332 * err |= restore_fpu_state(env, fpu_save); 333 */ 334 335 /* This is pretty much atomic, no amount locking would prevent 336 * the races which exist anyways. 337 */ 338 __get_user(set.sig[0], &sf->info.si_mask); 339 for(i = 1; i < TARGET_NSIG_WORDS; i++) { 340 __get_user(set.sig[i], &sf->extramask[i - 1]); 341 } 342 343 target_to_host_sigset_internal(&host_set, &set); 344 set_sigmask(&host_set); 345 346 if (err) { 347 goto segv_and_exit; 348 } 349 unlock_user_struct(sf, sf_addr, 0); 350 return -TARGET_QEMU_ESIGRETURN; 351 352 segv_and_exit: 353 unlock_user_struct(sf, sf_addr, 0); 354 force_sig(TARGET_SIGSEGV); 355 return -TARGET_QEMU_ESIGRETURN; 356 } 357 358 long do_rt_sigreturn(CPUSPARCState *env) 359 { 360 trace_user_do_rt_sigreturn(env, 0); 361 fprintf(stderr, "do_rt_sigreturn: not implemented\n"); 362 return -TARGET_ENOSYS; 363 } 364 365 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) 366 #define SPARC_MC_TSTATE 0 367 #define SPARC_MC_PC 1 368 #define SPARC_MC_NPC 2 369 #define SPARC_MC_Y 3 370 #define SPARC_MC_G1 4 371 #define SPARC_MC_G2 5 372 #define SPARC_MC_G3 6 373 #define SPARC_MC_G4 7 374 #define SPARC_MC_G5 8 375 #define SPARC_MC_G6 9 376 #define SPARC_MC_G7 10 377 #define SPARC_MC_O0 11 378 #define SPARC_MC_O1 12 379 #define SPARC_MC_O2 13 380 #define SPARC_MC_O3 14 381 #define SPARC_MC_O4 15 382 #define SPARC_MC_O5 16 383 #define SPARC_MC_O6 17 384 #define SPARC_MC_O7 18 385 #define SPARC_MC_NGREG 19 386 387 typedef abi_ulong target_mc_greg_t; 388 typedef target_mc_greg_t target_mc_gregset_t[SPARC_MC_NGREG]; 389 390 struct target_mc_fq { 391 abi_ulong *mcfq_addr; 392 uint32_t mcfq_insn; 393 }; 394 395 struct target_mc_fpu { 396 union { 397 uint32_t sregs[32]; 398 uint64_t dregs[32]; 399 //uint128_t qregs[16]; 400 } mcfpu_fregs; 401 abi_ulong mcfpu_fsr; 402 abi_ulong mcfpu_fprs; 403 abi_ulong mcfpu_gsr; 404 struct target_mc_fq *mcfpu_fq; 405 unsigned char mcfpu_qcnt; 406 unsigned char mcfpu_qentsz; 407 unsigned char mcfpu_enab; 408 }; 409 typedef struct target_mc_fpu target_mc_fpu_t; 410 411 typedef struct { 412 target_mc_gregset_t mc_gregs; 413 target_mc_greg_t mc_fp; 414 target_mc_greg_t mc_i7; 415 target_mc_fpu_t mc_fpregs; 416 } target_mcontext_t; 417 418 struct target_ucontext { 419 struct target_ucontext *tuc_link; 420 abi_ulong tuc_flags; 421 target_sigset_t tuc_sigmask; 422 target_mcontext_t tuc_mcontext; 423 }; 424 425 /* A V9 register window */ 426 struct target_reg_window { 427 abi_ulong locals[8]; 428 abi_ulong ins[8]; 429 }; 430 431 #define TARGET_STACK_BIAS 2047 432 433 /* {set, get}context() needed for 64-bit SparcLinux userland. */ 434 void sparc64_set_context(CPUSPARCState *env) 435 { 436 abi_ulong ucp_addr; 437 struct target_ucontext *ucp; 438 target_mc_gregset_t *grp; 439 abi_ulong pc, npc, tstate; 440 abi_ulong fp, i7, w_addr; 441 unsigned int i; 442 443 ucp_addr = env->regwptr[UREG_I0]; 444 if (!lock_user_struct(VERIFY_READ, ucp, ucp_addr, 1)) { 445 goto do_sigsegv; 446 } 447 grp = &ucp->tuc_mcontext.mc_gregs; 448 __get_user(pc, &((*grp)[SPARC_MC_PC])); 449 __get_user(npc, &((*grp)[SPARC_MC_NPC])); 450 if ((pc | npc) & 3) { 451 goto do_sigsegv; 452 } 453 if (env->regwptr[UREG_I1]) { 454 target_sigset_t target_set; 455 sigset_t set; 456 457 if (TARGET_NSIG_WORDS == 1) { 458 __get_user(target_set.sig[0], &ucp->tuc_sigmask.sig[0]); 459 } else { 460 abi_ulong *src, *dst; 461 src = ucp->tuc_sigmask.sig; 462 dst = target_set.sig; 463 for (i = 0; i < TARGET_NSIG_WORDS; i++, dst++, src++) { 464 __get_user(*dst, src); 465 } 466 } 467 target_to_host_sigset_internal(&set, &target_set); 468 set_sigmask(&set); 469 } 470 env->pc = pc; 471 env->npc = npc; 472 __get_user(env->y, &((*grp)[SPARC_MC_Y])); 473 __get_user(tstate, &((*grp)[SPARC_MC_TSTATE])); 474 env->asi = (tstate >> 24) & 0xff; 475 cpu_put_ccr(env, tstate >> 32); 476 cpu_put_cwp64(env, tstate & 0x1f); 477 __get_user(env->gregs[1], (&(*grp)[SPARC_MC_G1])); 478 __get_user(env->gregs[2], (&(*grp)[SPARC_MC_G2])); 479 __get_user(env->gregs[3], (&(*grp)[SPARC_MC_G3])); 480 __get_user(env->gregs[4], (&(*grp)[SPARC_MC_G4])); 481 __get_user(env->gregs[5], (&(*grp)[SPARC_MC_G5])); 482 __get_user(env->gregs[6], (&(*grp)[SPARC_MC_G6])); 483 __get_user(env->gregs[7], (&(*grp)[SPARC_MC_G7])); 484 __get_user(env->regwptr[UREG_I0], (&(*grp)[SPARC_MC_O0])); 485 __get_user(env->regwptr[UREG_I1], (&(*grp)[SPARC_MC_O1])); 486 __get_user(env->regwptr[UREG_I2], (&(*grp)[SPARC_MC_O2])); 487 __get_user(env->regwptr[UREG_I3], (&(*grp)[SPARC_MC_O3])); 488 __get_user(env->regwptr[UREG_I4], (&(*grp)[SPARC_MC_O4])); 489 __get_user(env->regwptr[UREG_I5], (&(*grp)[SPARC_MC_O5])); 490 __get_user(env->regwptr[UREG_I6], (&(*grp)[SPARC_MC_O6])); 491 __get_user(env->regwptr[UREG_I7], (&(*grp)[SPARC_MC_O7])); 492 493 __get_user(fp, &(ucp->tuc_mcontext.mc_fp)); 494 __get_user(i7, &(ucp->tuc_mcontext.mc_i7)); 495 496 w_addr = TARGET_STACK_BIAS+env->regwptr[UREG_I6]; 497 if (put_user(fp, w_addr + offsetof(struct target_reg_window, ins[6]), 498 abi_ulong) != 0) { 499 goto do_sigsegv; 500 } 501 if (put_user(i7, w_addr + offsetof(struct target_reg_window, ins[7]), 502 abi_ulong) != 0) { 503 goto do_sigsegv; 504 } 505 /* FIXME this does not match how the kernel handles the FPU in 506 * its sparc64_set_context implementation. In particular the FPU 507 * is only restored if fenab is non-zero in: 508 * __get_user(fenab, &(ucp->tuc_mcontext.mc_fpregs.mcfpu_enab)); 509 */ 510 __get_user(env->fprs, &(ucp->tuc_mcontext.mc_fpregs.mcfpu_fprs)); 511 { 512 uint32_t *src = ucp->tuc_mcontext.mc_fpregs.mcfpu_fregs.sregs; 513 for (i = 0; i < 64; i++, src++) { 514 if (i & 1) { 515 __get_user(env->fpr[i/2].l.lower, src); 516 } else { 517 __get_user(env->fpr[i/2].l.upper, src); 518 } 519 } 520 } 521 __get_user(env->fsr, 522 &(ucp->tuc_mcontext.mc_fpregs.mcfpu_fsr)); 523 __get_user(env->gsr, 524 &(ucp->tuc_mcontext.mc_fpregs.mcfpu_gsr)); 525 unlock_user_struct(ucp, ucp_addr, 0); 526 return; 527 do_sigsegv: 528 unlock_user_struct(ucp, ucp_addr, 0); 529 force_sig(TARGET_SIGSEGV); 530 } 531 532 void sparc64_get_context(CPUSPARCState *env) 533 { 534 abi_ulong ucp_addr; 535 struct target_ucontext *ucp; 536 target_mc_gregset_t *grp; 537 target_mcontext_t *mcp; 538 abi_ulong fp, i7, w_addr; 539 int err; 540 unsigned int i; 541 target_sigset_t target_set; 542 sigset_t set; 543 544 ucp_addr = env->regwptr[UREG_I0]; 545 if (!lock_user_struct(VERIFY_WRITE, ucp, ucp_addr, 0)) { 546 goto do_sigsegv; 547 } 548 549 mcp = &ucp->tuc_mcontext; 550 grp = &mcp->mc_gregs; 551 552 /* Skip over the trap instruction, first. */ 553 env->pc = env->npc; 554 env->npc += 4; 555 556 /* If we're only reading the signal mask then do_sigprocmask() 557 * is guaranteed not to fail, which is important because we don't 558 * have any way to signal a failure or restart this operation since 559 * this is not a normal syscall. 560 */ 561 err = do_sigprocmask(0, NULL, &set); 562 assert(err == 0); 563 host_to_target_sigset_internal(&target_set, &set); 564 if (TARGET_NSIG_WORDS == 1) { 565 __put_user(target_set.sig[0], 566 (abi_ulong *)&ucp->tuc_sigmask); 567 } else { 568 abi_ulong *src, *dst; 569 src = target_set.sig; 570 dst = ucp->tuc_sigmask.sig; 571 for (i = 0; i < TARGET_NSIG_WORDS; i++, dst++, src++) { 572 __put_user(*src, dst); 573 } 574 if (err) 575 goto do_sigsegv; 576 } 577 578 /* XXX: tstate must be saved properly */ 579 // __put_user(env->tstate, &((*grp)[SPARC_MC_TSTATE])); 580 __put_user(env->pc, &((*grp)[SPARC_MC_PC])); 581 __put_user(env->npc, &((*grp)[SPARC_MC_NPC])); 582 __put_user(env->y, &((*grp)[SPARC_MC_Y])); 583 __put_user(env->gregs[1], &((*grp)[SPARC_MC_G1])); 584 __put_user(env->gregs[2], &((*grp)[SPARC_MC_G2])); 585 __put_user(env->gregs[3], &((*grp)[SPARC_MC_G3])); 586 __put_user(env->gregs[4], &((*grp)[SPARC_MC_G4])); 587 __put_user(env->gregs[5], &((*grp)[SPARC_MC_G5])); 588 __put_user(env->gregs[6], &((*grp)[SPARC_MC_G6])); 589 __put_user(env->gregs[7], &((*grp)[SPARC_MC_G7])); 590 __put_user(env->regwptr[UREG_I0], &((*grp)[SPARC_MC_O0])); 591 __put_user(env->regwptr[UREG_I1], &((*grp)[SPARC_MC_O1])); 592 __put_user(env->regwptr[UREG_I2], &((*grp)[SPARC_MC_O2])); 593 __put_user(env->regwptr[UREG_I3], &((*grp)[SPARC_MC_O3])); 594 __put_user(env->regwptr[UREG_I4], &((*grp)[SPARC_MC_O4])); 595 __put_user(env->regwptr[UREG_I5], &((*grp)[SPARC_MC_O5])); 596 __put_user(env->regwptr[UREG_I6], &((*grp)[SPARC_MC_O6])); 597 __put_user(env->regwptr[UREG_I7], &((*grp)[SPARC_MC_O7])); 598 599 w_addr = TARGET_STACK_BIAS+env->regwptr[UREG_I6]; 600 fp = i7 = 0; 601 if (get_user(fp, w_addr + offsetof(struct target_reg_window, ins[6]), 602 abi_ulong) != 0) { 603 goto do_sigsegv; 604 } 605 if (get_user(i7, w_addr + offsetof(struct target_reg_window, ins[7]), 606 abi_ulong) != 0) { 607 goto do_sigsegv; 608 } 609 __put_user(fp, &(mcp->mc_fp)); 610 __put_user(i7, &(mcp->mc_i7)); 611 612 { 613 uint32_t *dst = ucp->tuc_mcontext.mc_fpregs.mcfpu_fregs.sregs; 614 for (i = 0; i < 64; i++, dst++) { 615 if (i & 1) { 616 __put_user(env->fpr[i/2].l.lower, dst); 617 } else { 618 __put_user(env->fpr[i/2].l.upper, dst); 619 } 620 } 621 } 622 __put_user(env->fsr, &(mcp->mc_fpregs.mcfpu_fsr)); 623 __put_user(env->gsr, &(mcp->mc_fpregs.mcfpu_gsr)); 624 __put_user(env->fprs, &(mcp->mc_fpregs.mcfpu_fprs)); 625 626 if (err) 627 goto do_sigsegv; 628 unlock_user_struct(ucp, ucp_addr, 1); 629 return; 630 do_sigsegv: 631 unlock_user_struct(ucp, ucp_addr, 1); 632 force_sig(TARGET_SIGSEGV); 633 } 634 #endif 635