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; 127 128 sp = env->regwptr[UREG_FP]; 129 130 /* This is the X/Open sanctioned signal stack switching. */ 131 if (sa->sa_flags & TARGET_SA_ONSTACK) { 132 if (!on_sig_stack(sp) 133 && !((target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size) & 7)) { 134 sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size; 135 } 136 } 137 return sp - framesize; 138 } 139 140 static int 141 setup___siginfo(__siginfo_t *si, CPUSPARCState *env, abi_ulong mask) 142 { 143 int err = 0, i; 144 145 __put_user(env->psr, &si->si_regs.psr); 146 __put_user(env->pc, &si->si_regs.pc); 147 __put_user(env->npc, &si->si_regs.npc); 148 __put_user(env->y, &si->si_regs.y); 149 for (i=0; i < 8; i++) { 150 __put_user(env->gregs[i], &si->si_regs.u_regs[i]); 151 } 152 for (i=0; i < 8; i++) { 153 __put_user(env->regwptr[UREG_I0 + i], &si->si_regs.u_regs[i+8]); 154 } 155 __put_user(mask, &si->si_mask); 156 return err; 157 } 158 159 #if 0 160 static int 161 setup_sigcontext(struct target_sigcontext *sc, /*struct _fpstate *fpstate,*/ 162 CPUSPARCState *env, unsigned long mask) 163 { 164 int err = 0; 165 166 __put_user(mask, &sc->sigc_mask); 167 __put_user(env->regwptr[UREG_SP], &sc->sigc_sp); 168 __put_user(env->pc, &sc->sigc_pc); 169 __put_user(env->npc, &sc->sigc_npc); 170 __put_user(env->psr, &sc->sigc_psr); 171 __put_user(env->gregs[1], &sc->sigc_g1); 172 __put_user(env->regwptr[UREG_O0], &sc->sigc_o0); 173 174 return err; 175 } 176 #endif 177 #define NF_ALIGNEDSZ (((sizeof(struct target_signal_frame) + 7) & (~7))) 178 179 void setup_frame(int sig, struct target_sigaction *ka, 180 target_sigset_t *set, CPUSPARCState *env) 181 { 182 abi_ulong sf_addr; 183 struct target_signal_frame *sf; 184 int sigframe_size, err, i; 185 186 /* 1. Make sure everything is clean */ 187 //synchronize_user_stack(); 188 189 sigframe_size = NF_ALIGNEDSZ; 190 sf_addr = get_sigframe(ka, env, sigframe_size); 191 trace_user_setup_frame(env, sf_addr); 192 193 sf = lock_user(VERIFY_WRITE, sf_addr, 194 sizeof(struct target_signal_frame), 0); 195 if (!sf) { 196 goto sigsegv; 197 } 198 #if 0 199 if (invalid_frame_pointer(sf, sigframe_size)) 200 goto sigill_and_return; 201 #endif 202 /* 2. Save the current process state */ 203 err = setup___siginfo(&sf->info, env, set->sig[0]); 204 __put_user(0, &sf->extra_size); 205 206 //save_fpu_state(regs, &sf->fpu_state); 207 //__put_user(&sf->fpu_state, &sf->fpu_save); 208 209 __put_user(set->sig[0], &sf->info.si_mask); 210 for (i = 0; i < TARGET_NSIG_WORDS - 1; i++) { 211 __put_user(set->sig[i + 1], &sf->extramask[i]); 212 } 213 214 for (i = 0; i < 8; i++) { 215 __put_user(env->regwptr[i + UREG_L0], &sf->ss.locals[i]); 216 } 217 for (i = 0; i < 8; i++) { 218 __put_user(env->regwptr[i + UREG_I0], &sf->ss.ins[i]); 219 } 220 if (err) 221 goto sigsegv; 222 223 /* 3. signal handler back-trampoline and parameters */ 224 env->regwptr[UREG_FP] = sf_addr; 225 env->regwptr[UREG_I0] = sig; 226 env->regwptr[UREG_I1] = sf_addr + 227 offsetof(struct target_signal_frame, info); 228 env->regwptr[UREG_I2] = sf_addr + 229 offsetof(struct target_signal_frame, info); 230 231 /* 4. signal handler */ 232 env->pc = ka->_sa_handler; 233 env->npc = (env->pc + 4); 234 /* 5. return to kernel instructions */ 235 if (ka->ka_restorer) { 236 env->regwptr[UREG_I7] = ka->ka_restorer; 237 } else { 238 uint32_t val32; 239 240 env->regwptr[UREG_I7] = sf_addr + 241 offsetof(struct target_signal_frame, insns) - 2 * 4; 242 243 /* mov __NR_sigreturn, %g1 */ 244 val32 = 0x821020d8; 245 __put_user(val32, &sf->insns[0]); 246 247 /* t 0x10 */ 248 val32 = 0x91d02010; 249 __put_user(val32, &sf->insns[1]); 250 if (err) 251 goto sigsegv; 252 253 /* Flush instruction space. */ 254 // flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0])); 255 // tb_flush(env); 256 } 257 unlock_user(sf, sf_addr, sizeof(struct target_signal_frame)); 258 return; 259 #if 0 260 sigill_and_return: 261 force_sig(TARGET_SIGILL); 262 #endif 263 sigsegv: 264 unlock_user(sf, sf_addr, sizeof(struct target_signal_frame)); 265 force_sigsegv(sig); 266 } 267 268 void setup_rt_frame(int sig, struct target_sigaction *ka, 269 target_siginfo_t *info, 270 target_sigset_t *set, CPUSPARCState *env) 271 { 272 fprintf(stderr, "setup_rt_frame: not implemented\n"); 273 } 274 275 long do_sigreturn(CPUSPARCState *env) 276 { 277 abi_ulong sf_addr; 278 struct target_signal_frame *sf; 279 uint32_t up_psr, pc, npc; 280 target_sigset_t set; 281 sigset_t host_set; 282 int err=0, i; 283 284 sf_addr = env->regwptr[UREG_FP]; 285 trace_user_do_sigreturn(env, sf_addr); 286 if (!lock_user_struct(VERIFY_READ, sf, sf_addr, 1)) { 287 goto segv_and_exit; 288 } 289 290 /* 1. Make sure we are not getting garbage from the user */ 291 292 if (sf_addr & 3) 293 goto segv_and_exit; 294 295 __get_user(pc, &sf->info.si_regs.pc); 296 __get_user(npc, &sf->info.si_regs.npc); 297 298 if ((pc | npc) & 3) { 299 goto segv_and_exit; 300 } 301 302 /* 2. Restore the state */ 303 __get_user(up_psr, &sf->info.si_regs.psr); 304 305 /* User can only change condition codes and FPU enabling in %psr. */ 306 env->psr = (up_psr & (PSR_ICC /* | PSR_EF */)) 307 | (env->psr & ~(PSR_ICC /* | PSR_EF */)); 308 309 env->pc = pc; 310 env->npc = npc; 311 __get_user(env->y, &sf->info.si_regs.y); 312 for (i=0; i < 8; i++) { 313 __get_user(env->gregs[i], &sf->info.si_regs.u_regs[i]); 314 } 315 for (i=0; i < 8; i++) { 316 __get_user(env->regwptr[i + UREG_I0], &sf->info.si_regs.u_regs[i+8]); 317 } 318 319 /* FIXME: implement FPU save/restore: 320 * __get_user(fpu_save, &sf->fpu_save); 321 * if (fpu_save) 322 * err |= restore_fpu_state(env, fpu_save); 323 */ 324 325 /* This is pretty much atomic, no amount locking would prevent 326 * the races which exist anyways. 327 */ 328 __get_user(set.sig[0], &sf->info.si_mask); 329 for(i = 1; i < TARGET_NSIG_WORDS; i++) { 330 __get_user(set.sig[i], &sf->extramask[i - 1]); 331 } 332 333 target_to_host_sigset_internal(&host_set, &set); 334 set_sigmask(&host_set); 335 336 if (err) { 337 goto segv_and_exit; 338 } 339 unlock_user_struct(sf, sf_addr, 0); 340 return -TARGET_QEMU_ESIGRETURN; 341 342 segv_and_exit: 343 unlock_user_struct(sf, sf_addr, 0); 344 force_sig(TARGET_SIGSEGV); 345 return -TARGET_QEMU_ESIGRETURN; 346 } 347 348 long do_rt_sigreturn(CPUSPARCState *env) 349 { 350 trace_user_do_rt_sigreturn(env, 0); 351 fprintf(stderr, "do_rt_sigreturn: not implemented\n"); 352 return -TARGET_ENOSYS; 353 } 354 355 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) 356 #define SPARC_MC_TSTATE 0 357 #define SPARC_MC_PC 1 358 #define SPARC_MC_NPC 2 359 #define SPARC_MC_Y 3 360 #define SPARC_MC_G1 4 361 #define SPARC_MC_G2 5 362 #define SPARC_MC_G3 6 363 #define SPARC_MC_G4 7 364 #define SPARC_MC_G5 8 365 #define SPARC_MC_G6 9 366 #define SPARC_MC_G7 10 367 #define SPARC_MC_O0 11 368 #define SPARC_MC_O1 12 369 #define SPARC_MC_O2 13 370 #define SPARC_MC_O3 14 371 #define SPARC_MC_O4 15 372 #define SPARC_MC_O5 16 373 #define SPARC_MC_O6 17 374 #define SPARC_MC_O7 18 375 #define SPARC_MC_NGREG 19 376 377 typedef abi_ulong target_mc_greg_t; 378 typedef target_mc_greg_t target_mc_gregset_t[SPARC_MC_NGREG]; 379 380 struct target_mc_fq { 381 abi_ulong *mcfq_addr; 382 uint32_t mcfq_insn; 383 }; 384 385 struct target_mc_fpu { 386 union { 387 uint32_t sregs[32]; 388 uint64_t dregs[32]; 389 //uint128_t qregs[16]; 390 } mcfpu_fregs; 391 abi_ulong mcfpu_fsr; 392 abi_ulong mcfpu_fprs; 393 abi_ulong mcfpu_gsr; 394 struct target_mc_fq *mcfpu_fq; 395 unsigned char mcfpu_qcnt; 396 unsigned char mcfpu_qentsz; 397 unsigned char mcfpu_enab; 398 }; 399 typedef struct target_mc_fpu target_mc_fpu_t; 400 401 typedef struct { 402 target_mc_gregset_t mc_gregs; 403 target_mc_greg_t mc_fp; 404 target_mc_greg_t mc_i7; 405 target_mc_fpu_t mc_fpregs; 406 } target_mcontext_t; 407 408 struct target_ucontext { 409 struct target_ucontext *tuc_link; 410 abi_ulong tuc_flags; 411 target_sigset_t tuc_sigmask; 412 target_mcontext_t tuc_mcontext; 413 }; 414 415 /* A V9 register window */ 416 struct target_reg_window { 417 abi_ulong locals[8]; 418 abi_ulong ins[8]; 419 }; 420 421 #define TARGET_STACK_BIAS 2047 422 423 /* {set, get}context() needed for 64-bit SparcLinux userland. */ 424 void sparc64_set_context(CPUSPARCState *env) 425 { 426 abi_ulong ucp_addr; 427 struct target_ucontext *ucp; 428 target_mc_gregset_t *grp; 429 abi_ulong pc, npc, tstate; 430 abi_ulong fp, i7, w_addr; 431 unsigned int i; 432 433 ucp_addr = env->regwptr[UREG_I0]; 434 if (!lock_user_struct(VERIFY_READ, ucp, ucp_addr, 1)) { 435 goto do_sigsegv; 436 } 437 grp = &ucp->tuc_mcontext.mc_gregs; 438 __get_user(pc, &((*grp)[SPARC_MC_PC])); 439 __get_user(npc, &((*grp)[SPARC_MC_NPC])); 440 if ((pc | npc) & 3) { 441 goto do_sigsegv; 442 } 443 if (env->regwptr[UREG_I1]) { 444 target_sigset_t target_set; 445 sigset_t set; 446 447 if (TARGET_NSIG_WORDS == 1) { 448 __get_user(target_set.sig[0], &ucp->tuc_sigmask.sig[0]); 449 } else { 450 abi_ulong *src, *dst; 451 src = ucp->tuc_sigmask.sig; 452 dst = target_set.sig; 453 for (i = 0; i < TARGET_NSIG_WORDS; i++, dst++, src++) { 454 __get_user(*dst, src); 455 } 456 } 457 target_to_host_sigset_internal(&set, &target_set); 458 set_sigmask(&set); 459 } 460 env->pc = pc; 461 env->npc = npc; 462 __get_user(env->y, &((*grp)[SPARC_MC_Y])); 463 __get_user(tstate, &((*grp)[SPARC_MC_TSTATE])); 464 env->asi = (tstate >> 24) & 0xff; 465 cpu_put_ccr(env, tstate >> 32); 466 cpu_put_cwp64(env, tstate & 0x1f); 467 __get_user(env->gregs[1], (&(*grp)[SPARC_MC_G1])); 468 __get_user(env->gregs[2], (&(*grp)[SPARC_MC_G2])); 469 __get_user(env->gregs[3], (&(*grp)[SPARC_MC_G3])); 470 __get_user(env->gregs[4], (&(*grp)[SPARC_MC_G4])); 471 __get_user(env->gregs[5], (&(*grp)[SPARC_MC_G5])); 472 __get_user(env->gregs[6], (&(*grp)[SPARC_MC_G6])); 473 __get_user(env->gregs[7], (&(*grp)[SPARC_MC_G7])); 474 __get_user(env->regwptr[UREG_I0], (&(*grp)[SPARC_MC_O0])); 475 __get_user(env->regwptr[UREG_I1], (&(*grp)[SPARC_MC_O1])); 476 __get_user(env->regwptr[UREG_I2], (&(*grp)[SPARC_MC_O2])); 477 __get_user(env->regwptr[UREG_I3], (&(*grp)[SPARC_MC_O3])); 478 __get_user(env->regwptr[UREG_I4], (&(*grp)[SPARC_MC_O4])); 479 __get_user(env->regwptr[UREG_I5], (&(*grp)[SPARC_MC_O5])); 480 __get_user(env->regwptr[UREG_I6], (&(*grp)[SPARC_MC_O6])); 481 __get_user(env->regwptr[UREG_I7], (&(*grp)[SPARC_MC_O7])); 482 483 __get_user(fp, &(ucp->tuc_mcontext.mc_fp)); 484 __get_user(i7, &(ucp->tuc_mcontext.mc_i7)); 485 486 w_addr = TARGET_STACK_BIAS+env->regwptr[UREG_I6]; 487 if (put_user(fp, w_addr + offsetof(struct target_reg_window, ins[6]), 488 abi_ulong) != 0) { 489 goto do_sigsegv; 490 } 491 if (put_user(i7, w_addr + offsetof(struct target_reg_window, ins[7]), 492 abi_ulong) != 0) { 493 goto do_sigsegv; 494 } 495 /* FIXME this does not match how the kernel handles the FPU in 496 * its sparc64_set_context implementation. In particular the FPU 497 * is only restored if fenab is non-zero in: 498 * __get_user(fenab, &(ucp->tuc_mcontext.mc_fpregs.mcfpu_enab)); 499 */ 500 __get_user(env->fprs, &(ucp->tuc_mcontext.mc_fpregs.mcfpu_fprs)); 501 { 502 uint32_t *src = ucp->tuc_mcontext.mc_fpregs.mcfpu_fregs.sregs; 503 for (i = 0; i < 64; i++, src++) { 504 if (i & 1) { 505 __get_user(env->fpr[i/2].l.lower, src); 506 } else { 507 __get_user(env->fpr[i/2].l.upper, src); 508 } 509 } 510 } 511 __get_user(env->fsr, 512 &(ucp->tuc_mcontext.mc_fpregs.mcfpu_fsr)); 513 __get_user(env->gsr, 514 &(ucp->tuc_mcontext.mc_fpregs.mcfpu_gsr)); 515 unlock_user_struct(ucp, ucp_addr, 0); 516 return; 517 do_sigsegv: 518 unlock_user_struct(ucp, ucp_addr, 0); 519 force_sig(TARGET_SIGSEGV); 520 } 521 522 void sparc64_get_context(CPUSPARCState *env) 523 { 524 abi_ulong ucp_addr; 525 struct target_ucontext *ucp; 526 target_mc_gregset_t *grp; 527 target_mcontext_t *mcp; 528 abi_ulong fp, i7, w_addr; 529 int err; 530 unsigned int i; 531 target_sigset_t target_set; 532 sigset_t set; 533 534 ucp_addr = env->regwptr[UREG_I0]; 535 if (!lock_user_struct(VERIFY_WRITE, ucp, ucp_addr, 0)) { 536 goto do_sigsegv; 537 } 538 539 mcp = &ucp->tuc_mcontext; 540 grp = &mcp->mc_gregs; 541 542 /* Skip over the trap instruction, first. */ 543 env->pc = env->npc; 544 env->npc += 4; 545 546 /* If we're only reading the signal mask then do_sigprocmask() 547 * is guaranteed not to fail, which is important because we don't 548 * have any way to signal a failure or restart this operation since 549 * this is not a normal syscall. 550 */ 551 err = do_sigprocmask(0, NULL, &set); 552 assert(err == 0); 553 host_to_target_sigset_internal(&target_set, &set); 554 if (TARGET_NSIG_WORDS == 1) { 555 __put_user(target_set.sig[0], 556 (abi_ulong *)&ucp->tuc_sigmask); 557 } else { 558 abi_ulong *src, *dst; 559 src = target_set.sig; 560 dst = ucp->tuc_sigmask.sig; 561 for (i = 0; i < TARGET_NSIG_WORDS; i++, dst++, src++) { 562 __put_user(*src, dst); 563 } 564 if (err) 565 goto do_sigsegv; 566 } 567 568 /* XXX: tstate must be saved properly */ 569 // __put_user(env->tstate, &((*grp)[SPARC_MC_TSTATE])); 570 __put_user(env->pc, &((*grp)[SPARC_MC_PC])); 571 __put_user(env->npc, &((*grp)[SPARC_MC_NPC])); 572 __put_user(env->y, &((*grp)[SPARC_MC_Y])); 573 __put_user(env->gregs[1], &((*grp)[SPARC_MC_G1])); 574 __put_user(env->gregs[2], &((*grp)[SPARC_MC_G2])); 575 __put_user(env->gregs[3], &((*grp)[SPARC_MC_G3])); 576 __put_user(env->gregs[4], &((*grp)[SPARC_MC_G4])); 577 __put_user(env->gregs[5], &((*grp)[SPARC_MC_G5])); 578 __put_user(env->gregs[6], &((*grp)[SPARC_MC_G6])); 579 __put_user(env->gregs[7], &((*grp)[SPARC_MC_G7])); 580 __put_user(env->regwptr[UREG_I0], &((*grp)[SPARC_MC_O0])); 581 __put_user(env->regwptr[UREG_I1], &((*grp)[SPARC_MC_O1])); 582 __put_user(env->regwptr[UREG_I2], &((*grp)[SPARC_MC_O2])); 583 __put_user(env->regwptr[UREG_I3], &((*grp)[SPARC_MC_O3])); 584 __put_user(env->regwptr[UREG_I4], &((*grp)[SPARC_MC_O4])); 585 __put_user(env->regwptr[UREG_I5], &((*grp)[SPARC_MC_O5])); 586 __put_user(env->regwptr[UREG_I6], &((*grp)[SPARC_MC_O6])); 587 __put_user(env->regwptr[UREG_I7], &((*grp)[SPARC_MC_O7])); 588 589 w_addr = TARGET_STACK_BIAS+env->regwptr[UREG_I6]; 590 fp = i7 = 0; 591 if (get_user(fp, w_addr + offsetof(struct target_reg_window, ins[6]), 592 abi_ulong) != 0) { 593 goto do_sigsegv; 594 } 595 if (get_user(i7, w_addr + offsetof(struct target_reg_window, ins[7]), 596 abi_ulong) != 0) { 597 goto do_sigsegv; 598 } 599 __put_user(fp, &(mcp->mc_fp)); 600 __put_user(i7, &(mcp->mc_i7)); 601 602 { 603 uint32_t *dst = ucp->tuc_mcontext.mc_fpregs.mcfpu_fregs.sregs; 604 for (i = 0; i < 64; i++, dst++) { 605 if (i & 1) { 606 __put_user(env->fpr[i/2].l.lower, dst); 607 } else { 608 __put_user(env->fpr[i/2].l.upper, dst); 609 } 610 } 611 } 612 __put_user(env->fsr, &(mcp->mc_fpregs.mcfpu_fsr)); 613 __put_user(env->gsr, &(mcp->mc_fpregs.mcfpu_gsr)); 614 __put_user(env->fprs, &(mcp->mc_fpregs.mcfpu_fprs)); 615 616 if (err) 617 goto do_sigsegv; 618 unlock_user_struct(ucp, ucp_addr, 1); 619 return; 620 do_sigsegv: 621 unlock_user_struct(ucp, ucp_addr, 1); 622 force_sig(TARGET_SIGSEGV); 623 } 624 #endif 625