1 /* 2 * User emulator execution 3 * 4 * Copyright (c) 2003-2005 Fabrice Bellard 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library 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 GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 #include "qemu/osdep.h" 20 #include "cpu.h" 21 #include "disas/disas.h" 22 #include "exec/exec-all.h" 23 #include "tcg.h" 24 #include "qemu/bitops.h" 25 #include "exec/cpu_ldst.h" 26 #include "translate-all.h" 27 #include "exec/helper-proto.h" 28 29 #undef EAX 30 #undef ECX 31 #undef EDX 32 #undef EBX 33 #undef ESP 34 #undef EBP 35 #undef ESI 36 #undef EDI 37 #undef EIP 38 #ifdef __linux__ 39 #include <sys/ucontext.h> 40 #endif 41 42 __thread uintptr_t helper_retaddr; 43 44 //#define DEBUG_SIGNAL 45 46 /* exit the current TB from a signal handler. The host registers are 47 restored in a state compatible with the CPU emulator 48 */ 49 static void cpu_exit_tb_from_sighandler(CPUState *cpu, sigset_t *old_set) 50 { 51 /* XXX: use siglongjmp ? */ 52 sigprocmask(SIG_SETMASK, old_set, NULL); 53 cpu_loop_exit_noexc(cpu); 54 } 55 56 /* 'pc' is the host PC at which the exception was raised. 'address' is 57 the effective address of the memory exception. 'is_write' is 1 if a 58 write caused the exception and otherwise 0'. 'old_set' is the 59 signal set which should be restored */ 60 static inline int handle_cpu_signal(uintptr_t pc, siginfo_t *info, 61 int is_write, sigset_t *old_set) 62 { 63 CPUState *cpu = current_cpu; 64 CPUClass *cc; 65 int ret; 66 unsigned long address = (unsigned long)info->si_addr; 67 68 /* We must handle PC addresses from two different sources: 69 * a call return address and a signal frame address. 70 * 71 * Within cpu_restore_state_from_tb we assume the former and adjust 72 * the address by -GETPC_ADJ so that the address is within the call 73 * insn so that addr does not accidentally match the beginning of the 74 * next guest insn. 75 * 76 * However, when the PC comes from the signal frame, it points to 77 * the actual faulting host insn and not a call insn. Subtracting 78 * GETPC_ADJ in that case may accidentally match the previous guest insn. 79 * 80 * So for the later case, adjust forward to compensate for what 81 * will be done later by cpu_restore_state_from_tb. 82 */ 83 if (helper_retaddr) { 84 pc = helper_retaddr; 85 } else { 86 pc += GETPC_ADJ; 87 } 88 89 /* For synchronous signals we expect to be coming from the vCPU 90 * thread (so current_cpu should be valid) and either from running 91 * code or during translation which can fault as we cross pages. 92 * 93 * If neither is true then something has gone wrong and we should 94 * abort rather than try and restart the vCPU execution. 95 */ 96 if (!cpu || !cpu->running) { 97 printf("qemu:%s received signal outside vCPU context @ pc=0x%" 98 PRIxPTR "\n", __func__, pc); 99 abort(); 100 } 101 102 #if defined(DEBUG_SIGNAL) 103 printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n", 104 pc, address, is_write, *(unsigned long *)old_set); 105 #endif 106 /* XXX: locking issue */ 107 /* Note that it is important that we don't call page_unprotect() unless 108 * this is really a "write to nonwriteable page" fault, because 109 * page_unprotect() assumes that if it is called for an access to 110 * a page that's writeable this means we had two threads racing and 111 * another thread got there first and already made the page writeable; 112 * so we will retry the access. If we were to call page_unprotect() 113 * for some other kind of fault that should really be passed to the 114 * guest, we'd end up in an infinite loop of retrying the faulting 115 * access. 116 */ 117 if (is_write && info->si_signo == SIGSEGV && info->si_code == SEGV_ACCERR && 118 h2g_valid(address)) { 119 switch (page_unprotect(h2g(address), pc)) { 120 case 0: 121 /* Fault not caused by a page marked unwritable to protect 122 * cached translations, must be the guest binary's problem. 123 */ 124 break; 125 case 1: 126 /* Fault caused by protection of cached translation; TBs 127 * invalidated, so resume execution. Retain helper_retaddr 128 * for a possible second fault. 129 */ 130 return 1; 131 case 2: 132 /* Fault caused by protection of cached translation, and the 133 * currently executing TB was modified and must be exited 134 * immediately. Clear helper_retaddr for next execution. 135 */ 136 helper_retaddr = 0; 137 cpu_exit_tb_from_sighandler(cpu, old_set); 138 /* NORETURN */ 139 140 default: 141 g_assert_not_reached(); 142 } 143 } 144 145 /* Convert forcefully to guest address space, invalid addresses 146 are still valid segv ones */ 147 address = h2g_nocheck(address); 148 149 cc = CPU_GET_CLASS(cpu); 150 /* see if it is an MMU fault */ 151 g_assert(cc->handle_mmu_fault); 152 ret = cc->handle_mmu_fault(cpu, address, 0, is_write, MMU_USER_IDX); 153 154 if (ret == 0) { 155 /* The MMU fault was handled without causing real CPU fault. 156 * Retain helper_retaddr for a possible second fault. 157 */ 158 return 1; 159 } 160 161 /* All other paths lead to cpu_exit; clear helper_retaddr 162 * for next execution. 163 */ 164 helper_retaddr = 0; 165 166 if (ret < 0) { 167 return 0; /* not an MMU fault */ 168 } 169 170 /* Now we have a real cpu fault. */ 171 cpu_restore_state(cpu, pc); 172 173 sigprocmask(SIG_SETMASK, old_set, NULL); 174 cpu_loop_exit(cpu); 175 176 /* never comes here */ 177 return 1; 178 } 179 180 #if defined(__i386__) 181 182 #if defined(__NetBSD__) 183 #include <ucontext.h> 184 185 #define EIP_sig(context) ((context)->uc_mcontext.__gregs[_REG_EIP]) 186 #define TRAP_sig(context) ((context)->uc_mcontext.__gregs[_REG_TRAPNO]) 187 #define ERROR_sig(context) ((context)->uc_mcontext.__gregs[_REG_ERR]) 188 #define MASK_sig(context) ((context)->uc_sigmask) 189 #elif defined(__FreeBSD__) || defined(__DragonFly__) 190 #include <ucontext.h> 191 192 #define EIP_sig(context) (*((unsigned long *)&(context)->uc_mcontext.mc_eip)) 193 #define TRAP_sig(context) ((context)->uc_mcontext.mc_trapno) 194 #define ERROR_sig(context) ((context)->uc_mcontext.mc_err) 195 #define MASK_sig(context) ((context)->uc_sigmask) 196 #elif defined(__OpenBSD__) 197 #define EIP_sig(context) ((context)->sc_eip) 198 #define TRAP_sig(context) ((context)->sc_trapno) 199 #define ERROR_sig(context) ((context)->sc_err) 200 #define MASK_sig(context) ((context)->sc_mask) 201 #else 202 #define EIP_sig(context) ((context)->uc_mcontext.gregs[REG_EIP]) 203 #define TRAP_sig(context) ((context)->uc_mcontext.gregs[REG_TRAPNO]) 204 #define ERROR_sig(context) ((context)->uc_mcontext.gregs[REG_ERR]) 205 #define MASK_sig(context) ((context)->uc_sigmask) 206 #endif 207 208 int cpu_signal_handler(int host_signum, void *pinfo, 209 void *puc) 210 { 211 siginfo_t *info = pinfo; 212 #if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__DragonFly__) 213 ucontext_t *uc = puc; 214 #elif defined(__OpenBSD__) 215 struct sigcontext *uc = puc; 216 #else 217 ucontext_t *uc = puc; 218 #endif 219 unsigned long pc; 220 int trapno; 221 222 #ifndef REG_EIP 223 /* for glibc 2.1 */ 224 #define REG_EIP EIP 225 #define REG_ERR ERR 226 #define REG_TRAPNO TRAPNO 227 #endif 228 pc = EIP_sig(uc); 229 trapno = TRAP_sig(uc); 230 return handle_cpu_signal(pc, info, 231 trapno == 0xe ? (ERROR_sig(uc) >> 1) & 1 : 0, 232 &MASK_sig(uc)); 233 } 234 235 #elif defined(__x86_64__) 236 237 #ifdef __NetBSD__ 238 #define PC_sig(context) _UC_MACHINE_PC(context) 239 #define TRAP_sig(context) ((context)->uc_mcontext.__gregs[_REG_TRAPNO]) 240 #define ERROR_sig(context) ((context)->uc_mcontext.__gregs[_REG_ERR]) 241 #define MASK_sig(context) ((context)->uc_sigmask) 242 #elif defined(__OpenBSD__) 243 #define PC_sig(context) ((context)->sc_rip) 244 #define TRAP_sig(context) ((context)->sc_trapno) 245 #define ERROR_sig(context) ((context)->sc_err) 246 #define MASK_sig(context) ((context)->sc_mask) 247 #elif defined(__FreeBSD__) || defined(__DragonFly__) 248 #include <ucontext.h> 249 250 #define PC_sig(context) (*((unsigned long *)&(context)->uc_mcontext.mc_rip)) 251 #define TRAP_sig(context) ((context)->uc_mcontext.mc_trapno) 252 #define ERROR_sig(context) ((context)->uc_mcontext.mc_err) 253 #define MASK_sig(context) ((context)->uc_sigmask) 254 #else 255 #define PC_sig(context) ((context)->uc_mcontext.gregs[REG_RIP]) 256 #define TRAP_sig(context) ((context)->uc_mcontext.gregs[REG_TRAPNO]) 257 #define ERROR_sig(context) ((context)->uc_mcontext.gregs[REG_ERR]) 258 #define MASK_sig(context) ((context)->uc_sigmask) 259 #endif 260 261 int cpu_signal_handler(int host_signum, void *pinfo, 262 void *puc) 263 { 264 siginfo_t *info = pinfo; 265 unsigned long pc; 266 #if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__DragonFly__) 267 ucontext_t *uc = puc; 268 #elif defined(__OpenBSD__) 269 struct sigcontext *uc = puc; 270 #else 271 ucontext_t *uc = puc; 272 #endif 273 274 pc = PC_sig(uc); 275 return handle_cpu_signal(pc, info, 276 TRAP_sig(uc) == 0xe ? (ERROR_sig(uc) >> 1) & 1 : 0, 277 &MASK_sig(uc)); 278 } 279 280 #elif defined(_ARCH_PPC) 281 282 /*********************************************************************** 283 * signal context platform-specific definitions 284 * From Wine 285 */ 286 #ifdef linux 287 /* All Registers access - only for local access */ 288 #define REG_sig(reg_name, context) \ 289 ((context)->uc_mcontext.regs->reg_name) 290 /* Gpr Registers access */ 291 #define GPR_sig(reg_num, context) REG_sig(gpr[reg_num], context) 292 /* Program counter */ 293 #define IAR_sig(context) REG_sig(nip, context) 294 /* Machine State Register (Supervisor) */ 295 #define MSR_sig(context) REG_sig(msr, context) 296 /* Count register */ 297 #define CTR_sig(context) REG_sig(ctr, context) 298 /* User's integer exception register */ 299 #define XER_sig(context) REG_sig(xer, context) 300 /* Link register */ 301 #define LR_sig(context) REG_sig(link, context) 302 /* Condition register */ 303 #define CR_sig(context) REG_sig(ccr, context) 304 305 /* Float Registers access */ 306 #define FLOAT_sig(reg_num, context) \ 307 (((double *)((char *)((context)->uc_mcontext.regs + 48 * 4)))[reg_num]) 308 #define FPSCR_sig(context) \ 309 (*(int *)((char *)((context)->uc_mcontext.regs + (48 + 32 * 2) * 4))) 310 /* Exception Registers access */ 311 #define DAR_sig(context) REG_sig(dar, context) 312 #define DSISR_sig(context) REG_sig(dsisr, context) 313 #define TRAP_sig(context) REG_sig(trap, context) 314 #endif /* linux */ 315 316 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) 317 #include <ucontext.h> 318 #define IAR_sig(context) ((context)->uc_mcontext.mc_srr0) 319 #define MSR_sig(context) ((context)->uc_mcontext.mc_srr1) 320 #define CTR_sig(context) ((context)->uc_mcontext.mc_ctr) 321 #define XER_sig(context) ((context)->uc_mcontext.mc_xer) 322 #define LR_sig(context) ((context)->uc_mcontext.mc_lr) 323 #define CR_sig(context) ((context)->uc_mcontext.mc_cr) 324 /* Exception Registers access */ 325 #define DAR_sig(context) ((context)->uc_mcontext.mc_dar) 326 #define DSISR_sig(context) ((context)->uc_mcontext.mc_dsisr) 327 #define TRAP_sig(context) ((context)->uc_mcontext.mc_exc) 328 #endif /* __FreeBSD__|| __FreeBSD_kernel__ */ 329 330 int cpu_signal_handler(int host_signum, void *pinfo, 331 void *puc) 332 { 333 siginfo_t *info = pinfo; 334 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) 335 ucontext_t *uc = puc; 336 #else 337 ucontext_t *uc = puc; 338 #endif 339 unsigned long pc; 340 int is_write; 341 342 pc = IAR_sig(uc); 343 is_write = 0; 344 #if 0 345 /* ppc 4xx case */ 346 if (DSISR_sig(uc) & 0x00800000) { 347 is_write = 1; 348 } 349 #else 350 if (TRAP_sig(uc) != 0x400 && (DSISR_sig(uc) & 0x02000000)) { 351 is_write = 1; 352 } 353 #endif 354 return handle_cpu_signal(pc, info, is_write, &uc->uc_sigmask); 355 } 356 357 #elif defined(__alpha__) 358 359 int cpu_signal_handler(int host_signum, void *pinfo, 360 void *puc) 361 { 362 siginfo_t *info = pinfo; 363 ucontext_t *uc = puc; 364 uint32_t *pc = uc->uc_mcontext.sc_pc; 365 uint32_t insn = *pc; 366 int is_write = 0; 367 368 /* XXX: need kernel patch to get write flag faster */ 369 switch (insn >> 26) { 370 case 0x0d: /* stw */ 371 case 0x0e: /* stb */ 372 case 0x0f: /* stq_u */ 373 case 0x24: /* stf */ 374 case 0x25: /* stg */ 375 case 0x26: /* sts */ 376 case 0x27: /* stt */ 377 case 0x2c: /* stl */ 378 case 0x2d: /* stq */ 379 case 0x2e: /* stl_c */ 380 case 0x2f: /* stq_c */ 381 is_write = 1; 382 } 383 384 return handle_cpu_signal(pc, info, is_write, &uc->uc_sigmask); 385 } 386 #elif defined(__sparc__) 387 388 int cpu_signal_handler(int host_signum, void *pinfo, 389 void *puc) 390 { 391 siginfo_t *info = pinfo; 392 int is_write; 393 uint32_t insn; 394 #if !defined(__arch64__) || defined(CONFIG_SOLARIS) 395 uint32_t *regs = (uint32_t *)(info + 1); 396 void *sigmask = (regs + 20); 397 /* XXX: is there a standard glibc define ? */ 398 unsigned long pc = regs[1]; 399 #else 400 #ifdef __linux__ 401 struct sigcontext *sc = puc; 402 unsigned long pc = sc->sigc_regs.tpc; 403 void *sigmask = (void *)sc->sigc_mask; 404 #elif defined(__OpenBSD__) 405 struct sigcontext *uc = puc; 406 unsigned long pc = uc->sc_pc; 407 void *sigmask = (void *)(long)uc->sc_mask; 408 #elif defined(__NetBSD__) 409 ucontext_t *uc = puc; 410 unsigned long pc = _UC_MACHINE_PC(uc); 411 void *sigmask = (void *)&uc->uc_sigmask; 412 #endif 413 #endif 414 415 /* XXX: need kernel patch to get write flag faster */ 416 is_write = 0; 417 insn = *(uint32_t *)pc; 418 if ((insn >> 30) == 3) { 419 switch ((insn >> 19) & 0x3f) { 420 case 0x05: /* stb */ 421 case 0x15: /* stba */ 422 case 0x06: /* sth */ 423 case 0x16: /* stha */ 424 case 0x04: /* st */ 425 case 0x14: /* sta */ 426 case 0x07: /* std */ 427 case 0x17: /* stda */ 428 case 0x0e: /* stx */ 429 case 0x1e: /* stxa */ 430 case 0x24: /* stf */ 431 case 0x34: /* stfa */ 432 case 0x27: /* stdf */ 433 case 0x37: /* stdfa */ 434 case 0x26: /* stqf */ 435 case 0x36: /* stqfa */ 436 case 0x25: /* stfsr */ 437 case 0x3c: /* casa */ 438 case 0x3e: /* casxa */ 439 is_write = 1; 440 break; 441 } 442 } 443 return handle_cpu_signal(pc, info, is_write, sigmask); 444 } 445 446 #elif defined(__arm__) 447 448 #if defined(__NetBSD__) 449 #include <ucontext.h> 450 #endif 451 452 int cpu_signal_handler(int host_signum, void *pinfo, 453 void *puc) 454 { 455 siginfo_t *info = pinfo; 456 #if defined(__NetBSD__) 457 ucontext_t *uc = puc; 458 #else 459 ucontext_t *uc = puc; 460 #endif 461 unsigned long pc; 462 int is_write; 463 464 #if defined(__NetBSD__) 465 pc = uc->uc_mcontext.__gregs[_REG_R15]; 466 #elif defined(__GLIBC__) && (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 3)) 467 pc = uc->uc_mcontext.gregs[R15]; 468 #else 469 pc = uc->uc_mcontext.arm_pc; 470 #endif 471 472 /* error_code is the FSR value, in which bit 11 is WnR (assuming a v6 or 473 * later processor; on v5 we will always report this as a read). 474 */ 475 is_write = extract32(uc->uc_mcontext.error_code, 11, 1); 476 return handle_cpu_signal(pc, info, is_write, &uc->uc_sigmask); 477 } 478 479 #elif defined(__aarch64__) 480 481 int cpu_signal_handler(int host_signum, void *pinfo, void *puc) 482 { 483 siginfo_t *info = pinfo; 484 ucontext_t *uc = puc; 485 uintptr_t pc = uc->uc_mcontext.pc; 486 uint32_t insn = *(uint32_t *)pc; 487 bool is_write; 488 489 /* XXX: need kernel patch to get write flag faster. */ 490 is_write = ( (insn & 0xbfff0000) == 0x0c000000 /* C3.3.1 */ 491 || (insn & 0xbfe00000) == 0x0c800000 /* C3.3.2 */ 492 || (insn & 0xbfdf0000) == 0x0d000000 /* C3.3.3 */ 493 || (insn & 0xbfc00000) == 0x0d800000 /* C3.3.4 */ 494 || (insn & 0x3f400000) == 0x08000000 /* C3.3.6 */ 495 || (insn & 0x3bc00000) == 0x39000000 /* C3.3.13 */ 496 || (insn & 0x3fc00000) == 0x3d800000 /* ... 128bit */ 497 /* Ingore bits 10, 11 & 21, controlling indexing. */ 498 || (insn & 0x3bc00000) == 0x38000000 /* C3.3.8-12 */ 499 || (insn & 0x3fe00000) == 0x3c800000 /* ... 128bit */ 500 /* Ignore bits 23 & 24, controlling indexing. */ 501 || (insn & 0x3a400000) == 0x28000000); /* C3.3.7,14-16 */ 502 503 return handle_cpu_signal(pc, info, is_write, &uc->uc_sigmask); 504 } 505 506 #elif defined(__ia64) 507 508 #ifndef __ISR_VALID 509 /* This ought to be in <bits/siginfo.h>... */ 510 # define __ISR_VALID 1 511 #endif 512 513 int cpu_signal_handler(int host_signum, void *pinfo, void *puc) 514 { 515 siginfo_t *info = pinfo; 516 ucontext_t *uc = puc; 517 unsigned long ip; 518 int is_write = 0; 519 520 ip = uc->uc_mcontext.sc_ip; 521 switch (host_signum) { 522 case SIGILL: 523 case SIGFPE: 524 case SIGSEGV: 525 case SIGBUS: 526 case SIGTRAP: 527 if (info->si_code && (info->si_segvflags & __ISR_VALID)) { 528 /* ISR.W (write-access) is bit 33: */ 529 is_write = (info->si_isr >> 33) & 1; 530 } 531 break; 532 533 default: 534 break; 535 } 536 return handle_cpu_signal(ip, info, is_write, (sigset_t *)&uc->uc_sigmask); 537 } 538 539 #elif defined(__s390__) 540 541 int cpu_signal_handler(int host_signum, void *pinfo, 542 void *puc) 543 { 544 siginfo_t *info = pinfo; 545 ucontext_t *uc = puc; 546 unsigned long pc; 547 uint16_t *pinsn; 548 int is_write = 0; 549 550 pc = uc->uc_mcontext.psw.addr; 551 552 /* ??? On linux, the non-rt signal handler has 4 (!) arguments instead 553 of the normal 2 arguments. The 3rd argument contains the "int_code" 554 from the hardware which does in fact contain the is_write value. 555 The rt signal handler, as far as I can tell, does not give this value 556 at all. Not that we could get to it from here even if it were. */ 557 /* ??? This is not even close to complete, since it ignores all 558 of the read-modify-write instructions. */ 559 pinsn = (uint16_t *)pc; 560 switch (pinsn[0] >> 8) { 561 case 0x50: /* ST */ 562 case 0x42: /* STC */ 563 case 0x40: /* STH */ 564 is_write = 1; 565 break; 566 case 0xc4: /* RIL format insns */ 567 switch (pinsn[0] & 0xf) { 568 case 0xf: /* STRL */ 569 case 0xb: /* STGRL */ 570 case 0x7: /* STHRL */ 571 is_write = 1; 572 } 573 break; 574 case 0xe3: /* RXY format insns */ 575 switch (pinsn[2] & 0xff) { 576 case 0x50: /* STY */ 577 case 0x24: /* STG */ 578 case 0x72: /* STCY */ 579 case 0x70: /* STHY */ 580 case 0x8e: /* STPQ */ 581 case 0x3f: /* STRVH */ 582 case 0x3e: /* STRV */ 583 case 0x2f: /* STRVG */ 584 is_write = 1; 585 } 586 break; 587 } 588 return handle_cpu_signal(pc, info, is_write, &uc->uc_sigmask); 589 } 590 591 #elif defined(__mips__) 592 593 int cpu_signal_handler(int host_signum, void *pinfo, 594 void *puc) 595 { 596 siginfo_t *info = pinfo; 597 ucontext_t *uc = puc; 598 greg_t pc = uc->uc_mcontext.pc; 599 int is_write; 600 601 /* XXX: compute is_write */ 602 is_write = 0; 603 return handle_cpu_signal(pc, info, is_write, &uc->uc_sigmask); 604 } 605 606 #else 607 608 #error host CPU specific signal handler needed 609 610 #endif 611 612 /* The softmmu versions of these helpers are in cputlb.c. */ 613 614 /* Do not allow unaligned operations to proceed. Return the host address. */ 615 static void *atomic_mmu_lookup(CPUArchState *env, target_ulong addr, 616 int size, uintptr_t retaddr) 617 { 618 /* Enforce qemu required alignment. */ 619 if (unlikely(addr & (size - 1))) { 620 cpu_loop_exit_atomic(ENV_GET_CPU(env), retaddr); 621 } 622 helper_retaddr = retaddr; 623 return g2h(addr); 624 } 625 626 /* Macro to call the above, with local variables from the use context. */ 627 #define ATOMIC_MMU_DECLS do {} while (0) 628 #define ATOMIC_MMU_LOOKUP atomic_mmu_lookup(env, addr, DATA_SIZE, GETPC()) 629 #define ATOMIC_MMU_CLEANUP do { helper_retaddr = 0; } while (0) 630 631 #define ATOMIC_NAME(X) HELPER(glue(glue(atomic_ ## X, SUFFIX), END)) 632 #define EXTRA_ARGS 633 634 #define DATA_SIZE 1 635 #include "atomic_template.h" 636 637 #define DATA_SIZE 2 638 #include "atomic_template.h" 639 640 #define DATA_SIZE 4 641 #include "atomic_template.h" 642 643 #ifdef CONFIG_ATOMIC64 644 #define DATA_SIZE 8 645 #include "atomic_template.h" 646 #endif 647 648 /* The following is only callable from other helpers, and matches up 649 with the softmmu version. */ 650 651 #ifdef CONFIG_ATOMIC128 652 653 #undef EXTRA_ARGS 654 #undef ATOMIC_NAME 655 #undef ATOMIC_MMU_LOOKUP 656 657 #define EXTRA_ARGS , TCGMemOpIdx oi, uintptr_t retaddr 658 #define ATOMIC_NAME(X) \ 659 HELPER(glue(glue(glue(atomic_ ## X, SUFFIX), END), _mmu)) 660 #define ATOMIC_MMU_LOOKUP atomic_mmu_lookup(env, addr, DATA_SIZE, retaddr) 661 662 #define DATA_SIZE 16 663 #include "atomic_template.h" 664 #endif /* CONFIG_ATOMIC128 */ 665