process.cc revision 5956:a49d9413a9e8
1/* 2 * Copyright (c) 2003-2006 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Gabe Black 29 * Ali Saidi 30 */ 31 32/* 33 * Copyright (c) 2007 The Hewlett-Packard Development Company 34 * All rights reserved. 35 * 36 * Redistribution and use of this software in source and binary forms, 37 * with or without modification, are permitted provided that the 38 * following conditions are met: 39 * 40 * The software must be used only for Non-Commercial Use which means any 41 * use which is NOT directed to receiving any direct monetary 42 * compensation for, or commercial advantage from such use. Illustrative 43 * examples of non-commercial use are academic research, personal study, 44 * teaching, education and corporate research & development. 45 * Illustrative examples of commercial use are distributing products for 46 * commercial advantage and providing services using the software for 47 * commercial advantage. 48 * 49 * If you wish to use this software or functionality therein that may be 50 * covered by patents for commercial use, please contact: 51 * Director of Intellectual Property Licensing 52 * Office of Strategy and Technology 53 * Hewlett-Packard Company 54 * 1501 Page Mill Road 55 * Palo Alto, California 94304 56 * 57 * Redistributions of source code must retain the above copyright notice, 58 * this list of conditions and the following disclaimer. Redistributions 59 * in binary form must reproduce the above copyright notice, this list of 60 * conditions and the following disclaimer in the documentation and/or 61 * other materials provided with the distribution. Neither the name of 62 * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its 63 * contributors may be used to endorse or promote products derived from 64 * this software without specific prior written permission. No right of 65 * sublicense is granted herewith. Derivatives of the software and 66 * output created using the software may be prepared, but only for 67 * Non-Commercial Uses. Derivatives of the software may be shared with 68 * others provided: (i) the others agree to abide by the list of 69 * conditions herein which includes the Non-Commercial Use restrictions; 70 * and (ii) such Derivatives of the software include the above copyright 71 * notice to acknowledge the contribution from this software where 72 * applicable, this list of conditions and the disclaimer below. 73 * 74 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 75 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 76 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 77 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 78 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 79 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 80 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 81 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 82 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 83 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 84 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 85 * 86 * Authors: Gabe Black 87 */ 88 89#include "arch/x86/isa_traits.hh" 90#include "arch/x86/process.hh" 91#include "arch/x86/segmentregs.hh" 92#include "arch/x86/types.hh" 93#include "base/loader/object_file.hh" 94#include "base/loader/elf_object.hh" 95#include "base/misc.hh" 96#include "base/trace.hh" 97#include "cpu/thread_context.hh" 98#include "mem/page_table.hh" 99#include "mem/translating_port.hh" 100#include "sim/process_impl.hh" 101#include "sim/syscall_emul.hh" 102#include "sim/system.hh" 103 104using namespace std; 105using namespace X86ISA; 106 107 108X86LiveProcess::X86LiveProcess(LiveProcessParams * params, ObjectFile *objFile, 109 SyscallDesc *_syscallDescs, int _numSyscallDescs) : 110 LiveProcess(params, objFile), syscallDescs(_syscallDescs), 111 numSyscallDescs(_numSyscallDescs) 112{ 113 brk_point = objFile->dataBase() + objFile->dataSize() + objFile->bssSize(); 114 brk_point = roundUp(brk_point, VMPageSize); 115} 116 117X86_64LiveProcess::X86_64LiveProcess(LiveProcessParams *params, 118 ObjectFile *objFile, SyscallDesc *_syscallDescs, 119 int _numSyscallDescs) : 120 X86LiveProcess(params, objFile, _syscallDescs, _numSyscallDescs) 121{ 122 // Set up stack. On X86_64 Linux, stack goes from the top of memory 123 // downward, less the hole for the kernel address space plus one page 124 // for undertermined purposes. 125 stack_base = (Addr)0x7FFFFFFFF000ULL; 126 127 // Set pointer for next thread stack. Reserve 8M for main stack. 128 next_thread_stack_base = stack_base - (8 * 1024 * 1024); 129 130 // Set up region for mmaps. This was determined empirically and may not 131 // always be correct. 132 mmap_start = mmap_end = (Addr)0x2aaaaaaab000ULL; 133} 134 135I386LiveProcess::I386LiveProcess(LiveProcessParams *params, 136 ObjectFile *objFile, SyscallDesc *_syscallDescs, 137 int _numSyscallDescs) : 138 X86LiveProcess(params, objFile, _syscallDescs, _numSyscallDescs) 139{ 140 stack_base = (Addr)0xffffe000ULL; 141 142 // Set pointer for next thread stack. Reserve 8M for main stack. 143 next_thread_stack_base = stack_base - (8 * 1024 * 1024); 144 145 // Set up region for mmaps. This was determined empirically and may not 146 // always be correct. 147 mmap_start = mmap_end = (Addr)0xf7ffd000ULL; 148} 149 150SyscallDesc* 151X86LiveProcess::getDesc(int callnum) 152{ 153 if (callnum < 0 || callnum >= numSyscallDescs) 154 return NULL; 155 return &syscallDescs[callnum]; 156} 157 158void 159X86_64LiveProcess::startup() 160{ 161 LiveProcess::startup(); 162 163 if (checkpointRestored) 164 return; 165 166 argsInit(sizeof(uint64_t), VMPageSize); 167 168 for (int i = 0; i < contextIds.size(); i++) { 169 ThreadContext * tc = system->getThreadContext(contextIds[i]); 170 171 SegAttr dataAttr = 0; 172 dataAttr.writable = 1; 173 dataAttr.readable = 1; 174 dataAttr.expandDown = 0; 175 dataAttr.dpl = 3; 176 dataAttr.defaultSize = 0; 177 dataAttr.longMode = 1; 178 179 //Initialize the segment registers. 180 for(int seg = 0; seg < NUM_SEGMENTREGS; seg++) { 181 tc->setMiscRegNoEffect(MISCREG_SEG_BASE(seg), 0); 182 tc->setMiscRegNoEffect(MISCREG_SEG_EFF_BASE(seg), 0); 183 tc->setMiscRegNoEffect(MISCREG_SEG_ATTR(seg), dataAttr); 184 } 185 186 SegAttr csAttr = 0; 187 csAttr.writable = 0; 188 csAttr.readable = 1; 189 csAttr.expandDown = 0; 190 csAttr.dpl = 3; 191 csAttr.defaultSize = 0; 192 csAttr.longMode = 1; 193 194 tc->setMiscRegNoEffect(MISCREG_CS_ATTR, csAttr); 195 196 //Set up the registers that describe the operating mode. 197 CR0 cr0 = 0; 198 cr0.pg = 1; // Turn on paging. 199 cr0.cd = 0; // Don't disable caching. 200 cr0.nw = 0; // This is bit is defined to be ignored. 201 cr0.am = 0; // No alignment checking 202 cr0.wp = 0; // Supervisor mode can write read only pages 203 cr0.ne = 1; 204 cr0.et = 1; // This should always be 1 205 cr0.ts = 0; // We don't do task switching, so causing fp exceptions 206 // would be pointless. 207 cr0.em = 0; // Allow x87 instructions to execute natively. 208 cr0.mp = 1; // This doesn't really matter, but the manual suggests 209 // setting it to one. 210 cr0.pe = 1; // We're definitely in protected mode. 211 tc->setMiscReg(MISCREG_CR0, cr0); 212 213 Efer efer = 0; 214 efer.sce = 1; // Enable system call extensions. 215 efer.lme = 1; // Enable long mode. 216 efer.lma = 1; // Activate long mode. 217 efer.nxe = 1; // Enable nx support. 218 efer.svme = 0; // Disable svm support for now. It isn't implemented. 219 efer.ffxsr = 1; // Turn on fast fxsave and fxrstor. 220 tc->setMiscReg(MISCREG_EFER, efer); 221 } 222} 223 224void 225I386LiveProcess::startup() 226{ 227 LiveProcess::startup(); 228 229 if (checkpointRestored) 230 return; 231 232 argsInit(sizeof(uint32_t), VMPageSize); 233 234 for (int i = 0; i < contextIds.size(); i++) { 235 ThreadContext * tc = system->getThreadContext(contextIds[i]); 236 237 SegAttr dataAttr = 0; 238 dataAttr.writable = 1; 239 dataAttr.readable = 1; 240 dataAttr.expandDown = 0; 241 dataAttr.dpl = 3; 242 dataAttr.defaultSize = 1; 243 dataAttr.longMode = 0; 244 245 //Initialize the segment registers. 246 for(int seg = 0; seg < NUM_SEGMENTREGS; seg++) { 247 tc->setMiscRegNoEffect(MISCREG_SEG_BASE(seg), 0); 248 tc->setMiscRegNoEffect(MISCREG_SEG_EFF_BASE(seg), 0); 249 tc->setMiscRegNoEffect(MISCREG_SEG_ATTR(seg), dataAttr); 250 tc->setMiscRegNoEffect(MISCREG_SEG_SEL(seg), 0xB); 251 } 252 253 SegAttr csAttr = 0; 254 csAttr.writable = 0; 255 csAttr.readable = 1; 256 csAttr.expandDown = 0; 257 csAttr.dpl = 3; 258 csAttr.defaultSize = 1; 259 csAttr.longMode = 0; 260 261 tc->setMiscRegNoEffect(MISCREG_CS_ATTR, csAttr); 262 263 //Set up the registers that describe the operating mode. 264 CR0 cr0 = 0; 265 cr0.pg = 1; // Turn on paging. 266 cr0.cd = 0; // Don't disable caching. 267 cr0.nw = 0; // This is bit is defined to be ignored. 268 cr0.am = 0; // No alignment checking 269 cr0.wp = 0; // Supervisor mode can write read only pages 270 cr0.ne = 1; 271 cr0.et = 1; // This should always be 1 272 cr0.ts = 0; // We don't do task switching, so causing fp exceptions 273 // would be pointless. 274 cr0.em = 0; // Allow x87 instructions to execute natively. 275 cr0.mp = 1; // This doesn't really matter, but the manual suggests 276 // setting it to one. 277 cr0.pe = 1; // We're definitely in protected mode. 278 tc->setMiscReg(MISCREG_CR0, cr0); 279 280 Efer efer = 0; 281 efer.sce = 1; // Enable system call extensions. 282 efer.lme = 1; // Enable long mode. 283 efer.lma = 0; // Deactivate long mode. 284 efer.nxe = 1; // Enable nx support. 285 efer.svme = 0; // Disable svm support for now. It isn't implemented. 286 efer.ffxsr = 1; // Turn on fast fxsave and fxrstor. 287 tc->setMiscReg(MISCREG_EFER, efer); 288 } 289} 290 291template<class IntType> 292void 293X86LiveProcess::argsInit(int pageSize) 294{ 295 int intSize = sizeof(IntType); 296 297 typedef AuxVector<IntType> auxv_t; 298 std::vector<auxv_t> auxv; 299 300 string filename; 301 if(argv.size() < 1) 302 filename = ""; 303 else 304 filename = argv[0]; 305 306 //We want 16 byte alignment 307 uint64_t align = 16; 308 309 // load object file into target memory 310 objFile->loadSections(initVirtMem); 311 312 enum X86CpuFeature { 313 X86_OnboardFPU = 1 << 0, 314 X86_VirtualModeExtensions = 1 << 1, 315 X86_DebuggingExtensions = 1 << 2, 316 X86_PageSizeExtensions = 1 << 3, 317 318 X86_TimeStampCounter = 1 << 4, 319 X86_ModelSpecificRegisters = 1 << 5, 320 X86_PhysicalAddressExtensions = 1 << 6, 321 X86_MachineCheckExtensions = 1 << 7, 322 323 X86_CMPXCHG8Instruction = 1 << 8, 324 X86_OnboardAPIC = 1 << 9, 325 X86_SYSENTER_SYSEXIT = 1 << 11, 326 327 X86_MemoryTypeRangeRegisters = 1 << 12, 328 X86_PageGlobalEnable = 1 << 13, 329 X86_MachineCheckArchitecture = 1 << 14, 330 X86_CMOVInstruction = 1 << 15, 331 332 X86_PageAttributeTable = 1 << 16, 333 X86_36BitPSEs = 1 << 17, 334 X86_ProcessorSerialNumber = 1 << 18, 335 X86_CLFLUSHInstruction = 1 << 19, 336 337 X86_DebugTraceStore = 1 << 21, 338 X86_ACPIViaMSR = 1 << 22, 339 X86_MultimediaExtensions = 1 << 23, 340 341 X86_FXSAVE_FXRSTOR = 1 << 24, 342 X86_StreamingSIMDExtensions = 1 << 25, 343 X86_StreamingSIMDExtensions2 = 1 << 26, 344 X86_CPUSelfSnoop = 1 << 27, 345 346 X86_HyperThreading = 1 << 28, 347 X86_AutomaticClockControl = 1 << 29, 348 X86_IA64Processor = 1 << 30 349 }; 350 351 //Setup the auxilliary vectors. These will already have endian conversion. 352 //Auxilliary vectors are loaded only for elf formatted executables. 353 ElfObject * elfObject = dynamic_cast<ElfObject *>(objFile); 354 if(elfObject) 355 { 356 uint64_t features = 357 X86_OnboardFPU | 358 X86_VirtualModeExtensions | 359 X86_DebuggingExtensions | 360 X86_PageSizeExtensions | 361 X86_TimeStampCounter | 362 X86_ModelSpecificRegisters | 363 X86_PhysicalAddressExtensions | 364 X86_MachineCheckExtensions | 365 X86_CMPXCHG8Instruction | 366 X86_OnboardAPIC | 367 X86_SYSENTER_SYSEXIT | 368 X86_MemoryTypeRangeRegisters | 369 X86_PageGlobalEnable | 370 X86_MachineCheckArchitecture | 371 X86_CMOVInstruction | 372 X86_PageAttributeTable | 373 X86_36BitPSEs | 374// X86_ProcessorSerialNumber | 375 X86_CLFLUSHInstruction | 376// X86_DebugTraceStore | 377// X86_ACPIViaMSR | 378 X86_MultimediaExtensions | 379 X86_FXSAVE_FXRSTOR | 380 X86_StreamingSIMDExtensions | 381 X86_StreamingSIMDExtensions2 | 382// X86_CPUSelfSnoop | 383// X86_HyperThreading | 384// X86_AutomaticClockControl | 385// X86_IA64Processor | 386 0; 387 388 //Bits which describe the system hardware capabilities 389 //XXX Figure out what these should be 390 auxv.push_back(auxv_t(M5_AT_HWCAP, features)); 391 //The system page size 392 auxv.push_back(auxv_t(M5_AT_PAGESZ, X86ISA::VMPageSize)); 393 //Frequency at which times() increments 394 auxv.push_back(auxv_t(M5_AT_CLKTCK, 100)); 395 // For statically linked executables, this is the virtual address of the 396 // program header tables if they appear in the executable image 397 auxv.push_back(auxv_t(M5_AT_PHDR, elfObject->programHeaderTable())); 398 // This is the size of a program header entry from the elf file. 399 auxv.push_back(auxv_t(M5_AT_PHENT, elfObject->programHeaderSize())); 400 // This is the number of program headers from the original elf file. 401 auxv.push_back(auxv_t(M5_AT_PHNUM, elfObject->programHeaderCount())); 402 //Defined to be 100 in the kernel source. 403 //This is the address of the elf "interpreter", It should be set 404 //to 0 for regular executables. It should be something else 405 //(not sure what) for dynamic libraries. 406 auxv.push_back(auxv_t(M5_AT_BASE, 0)); 407 408 //XXX Figure out what this should be. 409 auxv.push_back(auxv_t(M5_AT_FLAGS, 0)); 410 //The entry point to the program 411 auxv.push_back(auxv_t(M5_AT_ENTRY, objFile->entryPoint())); 412 //Different user and group IDs 413 auxv.push_back(auxv_t(M5_AT_UID, uid())); 414 auxv.push_back(auxv_t(M5_AT_EUID, euid())); 415 auxv.push_back(auxv_t(M5_AT_GID, gid())); 416 auxv.push_back(auxv_t(M5_AT_EGID, egid())); 417 //Whether to enable "secure mode" in the executable 418 auxv.push_back(auxv_t(M5_AT_SECURE, 0)); 419 //The string "x86_64" with unknown meaning 420 auxv.push_back(auxv_t(M5_AT_PLATFORM, 0)); 421 } 422 423 //Figure out how big the initial stack needs to be 424 425 // A sentry NULL void pointer at the top of the stack. 426 int sentry_size = intSize; 427 428 //This is the name of the file which is present on the initial stack 429 //It's purpose is to let the user space linker examine the original file. 430 int file_name_size = filename.size() + 1; 431 432 string platform = "x86_64"; 433 int aux_data_size = platform.size() + 1; 434 435 int env_data_size = 0; 436 for (int i = 0; i < envp.size(); ++i) { 437 env_data_size += envp[i].size() + 1; 438 } 439 int arg_data_size = 0; 440 for (int i = 0; i < argv.size(); ++i) { 441 arg_data_size += argv[i].size() + 1; 442 } 443 444 //The info_block needs to be padded so it's size is a multiple of the 445 //alignment mask. Also, it appears that there needs to be at least some 446 //padding, so if the size is already a multiple, we need to increase it 447 //anyway. 448 int base_info_block_size = 449 sentry_size + file_name_size + env_data_size + arg_data_size; 450 451 int info_block_size = roundUp(base_info_block_size, align); 452 453 int info_block_padding = info_block_size - base_info_block_size; 454 455 //Each auxilliary vector is two 8 byte words 456 int aux_array_size = intSize * 2 * (auxv.size() + 1); 457 458 int envp_array_size = intSize * (envp.size() + 1); 459 int argv_array_size = intSize * (argv.size() + 1); 460 461 int argc_size = intSize; 462 463 //Figure out the size of the contents of the actual initial frame 464 int frame_size = 465 aux_array_size + 466 envp_array_size + 467 argv_array_size + 468 argc_size; 469 470 //There needs to be padding after the auxiliary vector data so that the 471 //very bottom of the stack is aligned properly. 472 int partial_size = frame_size + aux_data_size; 473 int aligned_partial_size = roundUp(partial_size, align); 474 int aux_padding = aligned_partial_size - partial_size; 475 476 int space_needed = 477 info_block_size + 478 aux_data_size + 479 aux_padding + 480 frame_size; 481 482 stack_min = stack_base - space_needed; 483 stack_min = roundDown(stack_min, align); 484 stack_size = stack_base - stack_min; 485 486 // map memory 487 pTable->allocate(roundDown(stack_min, pageSize), 488 roundUp(stack_size, pageSize)); 489 490 // map out initial stack contents 491 IntType sentry_base = stack_base - sentry_size; 492 IntType file_name_base = sentry_base - file_name_size; 493 IntType env_data_base = file_name_base - env_data_size; 494 IntType arg_data_base = env_data_base - arg_data_size; 495 IntType aux_data_base = arg_data_base - info_block_padding - aux_data_size; 496 IntType auxv_array_base = aux_data_base - aux_array_size - aux_padding; 497 IntType envp_array_base = auxv_array_base - envp_array_size; 498 IntType argv_array_base = envp_array_base - argv_array_size; 499 IntType argc_base = argv_array_base - argc_size; 500 501 DPRINTF(Stack, "The addresses of items on the initial stack:\n"); 502 DPRINTF(Stack, "0x%x - file name\n", file_name_base); 503 DPRINTF(Stack, "0x%x - env data\n", env_data_base); 504 DPRINTF(Stack, "0x%x - arg data\n", arg_data_base); 505 DPRINTF(Stack, "0x%x - aux data\n", aux_data_base); 506 DPRINTF(Stack, "0x%x - auxv array\n", auxv_array_base); 507 DPRINTF(Stack, "0x%x - envp array\n", envp_array_base); 508 DPRINTF(Stack, "0x%x - argv array\n", argv_array_base); 509 DPRINTF(Stack, "0x%x - argc \n", argc_base); 510 DPRINTF(Stack, "0x%x - stack min\n", stack_min); 511 512 // write contents to stack 513 514 // figure out argc 515 IntType argc = argv.size(); 516 IntType guestArgc = X86ISA::htog(argc); 517 518 //Write out the sentry void * 519 IntType sentry_NULL = 0; 520 initVirtMem->writeBlob(sentry_base, 521 (uint8_t*)&sentry_NULL, sentry_size); 522 523 //Write the file name 524 initVirtMem->writeString(file_name_base, filename.c_str()); 525 526 //Fix up the aux vector which points to the "platform" string 527 assert(auxv[auxv.size() - 1].a_type = M5_AT_PLATFORM); 528 auxv[auxv.size() - 1].a_val = aux_data_base; 529 530 //Copy the aux stuff 531 for(int x = 0; x < auxv.size(); x++) 532 { 533 initVirtMem->writeBlob(auxv_array_base + x * 2 * intSize, 534 (uint8_t*)&(auxv[x].a_type), intSize); 535 initVirtMem->writeBlob(auxv_array_base + (x * 2 + 1) * intSize, 536 (uint8_t*)&(auxv[x].a_val), intSize); 537 } 538 //Write out the terminating zeroed auxilliary vector 539 const uint64_t zero = 0; 540 initVirtMem->writeBlob(auxv_array_base + 2 * intSize * auxv.size(), 541 (uint8_t*)&zero, 2 * intSize); 542 543 initVirtMem->writeString(aux_data_base, platform.c_str()); 544 545 copyStringArray(envp, envp_array_base, env_data_base, initVirtMem); 546 copyStringArray(argv, argv_array_base, arg_data_base, initVirtMem); 547 548 initVirtMem->writeBlob(argc_base, (uint8_t*)&guestArgc, intSize); 549 550 ThreadContext *tc = system->getThreadContext(contextIds[0]); 551 //Set the stack pointer register 552 tc->setIntReg(StackPointerReg, stack_min); 553 554 Addr prog_entry = objFile->entryPoint(); 555 // There doesn't need to be any segment base added in since we're dealing 556 // with the flat segmentation model. 557 tc->setPC(prog_entry); 558 tc->setNextPC(prog_entry + sizeof(MachInst)); 559 560 //Align the "stack_min" to a page boundary. 561 stack_min = roundDown(stack_min, pageSize); 562 563// num_processes++; 564} 565 566void 567X86_64LiveProcess::argsInit(int intSize, int pageSize) 568{ 569 X86LiveProcess::argsInit<uint64_t>(pageSize); 570} 571 572void 573I386LiveProcess::argsInit(int intSize, int pageSize) 574{ 575 X86LiveProcess::argsInit<uint32_t>(pageSize); 576} 577