process.cc revision 2680
12207SN/A/* 22207SN/A * Copyright (c) 2003-2004 The Regents of The University of Michigan 32207SN/A * All rights reserved. 42207SN/A * 52207SN/A * Redistribution and use in source and binary forms, with or without 62207SN/A * modification, are permitted provided that the following conditions are 72207SN/A * met: redistributions of source code must retain the above copyright 82207SN/A * notice, this list of conditions and the following disclaimer; 92207SN/A * redistributions in binary form must reproduce the above copyright 102207SN/A * notice, this list of conditions and the following disclaimer in the 112207SN/A * documentation and/or other materials provided with the distribution; 122207SN/A * neither the name of the copyright holders nor the names of its 132207SN/A * contributors may be used to endorse or promote products derived from 142207SN/A * this software without specific prior written permission. 152207SN/A * 162207SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 172207SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 182207SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 192207SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 202207SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 212207SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 222207SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 232207SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 242207SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 252207SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 262207SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272665Ssaidi@eecs.umich.edu * 282665Ssaidi@eecs.umich.edu * Authors: Gabe Black 292665Ssaidi@eecs.umich.edu * Ali Saidi 302207SN/A */ 312207SN/A 322474SN/A#include "arch/sparc/isa_traits.hh" 332207SN/A#include "arch/sparc/process.hh" 342454SN/A#include "arch/sparc/linux/process.hh" 352600SN/A#include "arch/sparc/solaris/process.hh" 362454SN/A#include "base/loader/object_file.hh" 372454SN/A#include "base/misc.hh" 382680Sktlim@umich.edu#include "cpu/thread_context.hh" 392561SN/A#include "mem/page_table.hh" 402561SN/A#include "mem/translating_port.hh" 412474SN/A#include "sim/builder.hh" 422474SN/A#include "sim/system.hh" 432207SN/A 442458SN/Ausing namespace std; 452474SN/Ausing namespace SparcISA; 462458SN/A 472474SN/ASparcLiveProcess * 482474SN/ASparcLiveProcess::create(const std::string &nm, System *system, int stdin_fd, 492474SN/A int stdout_fd, int stderr_fd, std::string executable, 502474SN/A std::vector<std::string> &argv, std::vector<std::string> &envp) 512207SN/A{ 522474SN/A SparcLiveProcess *process = NULL; 532207SN/A 542474SN/A ObjectFile *objFile = createObjectFile(executable); 552474SN/A if (objFile == NULL) { 562474SN/A fatal("Can't load object file %s", executable); 572474SN/A } 582474SN/A 592474SN/A 602207SN/A if (objFile->getArch() != ObjectFile::SPARC) 612600SN/A fatal("Object file with arch %x does not match architecture %x.", 622600SN/A objFile->getArch(), ObjectFile::SPARC); 632207SN/A switch (objFile->getOpSys()) { 642207SN/A case ObjectFile::Linux: 652458SN/A process = new SparcLinuxProcess(nm, objFile, system, 662207SN/A stdin_fd, stdout_fd, stderr_fd, 672207SN/A argv, envp); 682207SN/A break; 692207SN/A 702600SN/A 712207SN/A case ObjectFile::Solaris: 722600SN/A process = new SparcSolarisProcess(nm, objFile, system, 732600SN/A stdin_fd, stdout_fd, stderr_fd, 742600SN/A argv, envp); 752600SN/A break; 762207SN/A default: 772207SN/A fatal("Unknown/unsupported operating system."); 782207SN/A } 792474SN/A 802474SN/A if (process == NULL) 812474SN/A fatal("Unknown error creating process object."); 822207SN/A return process; 832207SN/A} 842207SN/A 852474SN/ASparcLiveProcess::SparcLiveProcess(const std::string &nm, ObjectFile *objFile, 862474SN/A System *_system, int stdin_fd, int stdout_fd, int stderr_fd, 872474SN/A std::vector<std::string> &argv, std::vector<std::string> &envp) 882474SN/A : LiveProcess(nm, objFile, _system, stdin_fd, stdout_fd, stderr_fd, 892474SN/A argv, envp) 902474SN/A{ 912474SN/A 922474SN/A // XXX all the below need to be updated for SPARC - Ali 932474SN/A brk_point = objFile->dataBase() + objFile->dataSize() + objFile->bssSize(); 942474SN/A brk_point = roundUp(brk_point, VMPageSize); 952474SN/A 962561SN/A // Set up stack. On SPARC Linux, stack goes from the top of memory 972561SN/A // downward, less the hole for the kernel address space. 982588SN/A stack_base = ((Addr)0x80000000000ULL); 992474SN/A 1002474SN/A // Set up region for mmaps. Tru64 seems to start just above 0 and 1012474SN/A // grow up from there. 1022585SN/A mmap_start = mmap_end = 0x800000; 1032474SN/A 1042474SN/A // Set pointer for next thread stack. Reserve 8M for main stack. 1052474SN/A next_thread_stack_base = stack_base - (8 * 1024 * 1024); 1062474SN/A} 1072474SN/A 1082474SN/Avoid 1092474SN/ASparcLiveProcess::startup() 1102474SN/A{ 1112474SN/A argsInit(MachineBytes, VMPageSize); 1122561SN/A 1132561SN/A //From the SPARC ABI 1142561SN/A 1152561SN/A //The process runs in user mode 1162680Sktlim@umich.edu threadContexts[0]->setMiscRegWithEffect(MISCREG_PSTATE, 0x02); 1172561SN/A 1182646Ssaidi@eecs.umich.edu //Setup default FP state 1192680Sktlim@umich.edu threadContexts[0]->setMiscReg(MISCREG_FSR, 0); 1202646Ssaidi@eecs.umich.edu 1212680Sktlim@umich.edu threadContexts[0]->setMiscReg(MISCREG_TICK, 0); 1222646Ssaidi@eecs.umich.edu // 1232561SN/A /* 1242561SN/A * Register window management registers 1252561SN/A */ 1262561SN/A 1272561SN/A //No windows contain info from other programs 1282680Sktlim@umich.edu threadContexts[0]->setMiscRegWithEffect(MISCREG_OTHERWIN, 0); 1292561SN/A //There are no windows to pop 1302680Sktlim@umich.edu threadContexts[0]->setMiscRegWithEffect(MISCREG_CANRESTORE, 0); 1312561SN/A //All windows are available to save into 1322680Sktlim@umich.edu threadContexts[0]->setMiscRegWithEffect(MISCREG_CANSAVE, NWindows - 2); 1332561SN/A //All windows are "clean" 1342680Sktlim@umich.edu threadContexts[0]->setMiscRegWithEffect(MISCREG_CLEANWIN, NWindows); 1352561SN/A //Start with register window 0 1362680Sktlim@umich.edu threadContexts[0]->setMiscRegWithEffect(MISCREG_CWP, 0); 1372474SN/A} 1382474SN/A 1392585SN/Am5_auxv_t buildAuxVect(int64_t type, int64_t val) 1402585SN/A{ 1412585SN/A m5_auxv_t result; 1422585SN/A result.a_type = TheISA::htog(type); 1432585SN/A result.a_val = TheISA::htog(val); 1442585SN/A return result; 1452585SN/A} 1462585SN/A 1472561SN/Avoid 1482561SN/ASparcLiveProcess::argsInit(int intSize, int pageSize) 1492561SN/A{ 1502561SN/A Process::startup(); 1512474SN/A 1522561SN/A Addr alignmentMask = ~(intSize - 1); 1532561SN/A 1542561SN/A // load object file into target memory 1552561SN/A objFile->loadSections(initVirtMem); 1562561SN/A 1572585SN/A //These are the auxilliary vector types 1582585SN/A enum auxTypes 1592585SN/A { 1602585SN/A SPARC_AT_HWCAP = 16, 1612585SN/A SPARC_AT_PAGESZ = 6, 1622585SN/A SPARC_AT_CLKTCK = 17, 1632585SN/A SPARC_AT_PHDR = 3, 1642585SN/A SPARC_AT_PHENT = 4, 1652585SN/A SPARC_AT_PHNUM = 5, 1662585SN/A SPARC_AT_BASE = 7, 1672585SN/A SPARC_AT_FLAGS = 8, 1682585SN/A SPARC_AT_ENTRY = 9, 1692585SN/A SPARC_AT_UID = 11, 1702585SN/A SPARC_AT_EUID = 12, 1712585SN/A SPARC_AT_GID = 13, 1722585SN/A SPARC_AT_EGID = 14 1732585SN/A }; 1742585SN/A 1752585SN/A enum hardwareCaps 1762585SN/A { 1772585SN/A M5_HWCAP_SPARC_FLUSH = 1, 1782585SN/A M5_HWCAP_SPARC_STBAR = 2, 1792585SN/A M5_HWCAP_SPARC_SWAP = 4, 1802585SN/A M5_HWCAP_SPARC_MULDIV = 8, 1812585SN/A M5_HWCAP_SPARC_V9 = 16, 1822585SN/A //This one should technically only be set 1832585SN/A //if there is a cheetah or cheetah_plus tlb, 1842585SN/A //but we'll use it all the time 1852585SN/A M5_HWCAP_SPARC_ULTRA3 = 32 1862585SN/A }; 1872585SN/A 1882585SN/A const int64_t hwcap = 1892585SN/A M5_HWCAP_SPARC_FLUSH | 1902585SN/A M5_HWCAP_SPARC_STBAR | 1912585SN/A M5_HWCAP_SPARC_SWAP | 1922585SN/A M5_HWCAP_SPARC_MULDIV | 1932585SN/A M5_HWCAP_SPARC_V9 | 1942585SN/A M5_HWCAP_SPARC_ULTRA3; 1952585SN/A 1962585SN/A //Setup the auxilliary vectors. These will already have 1972585SN/A //endian conversion. 1982585SN/A auxv.push_back(buildAuxVect(SPARC_AT_EGID, 100)); 1992585SN/A auxv.push_back(buildAuxVect(SPARC_AT_GID, 100)); 2002585SN/A auxv.push_back(buildAuxVect(SPARC_AT_EUID, 100)); 2012585SN/A auxv.push_back(buildAuxVect(SPARC_AT_UID, 100)); 2022585SN/A //This would work, but the entry point is a protected member 2032585SN/A //auxv.push_back(buildAuxVect(SPARC_AT_ENTRY, objFile->entry)); 2042585SN/A auxv.push_back(buildAuxVect(SPARC_AT_FLAGS, 0)); 2052585SN/A //This is the address of the elf "interpreter", which I don't 2062585SN/A //think we currently set up. It should be set to 0 (I think) 2072585SN/A //auxv.push_back(buildAuxVect(SPARC_AT_BASE, 0)); 2082585SN/A //This is the number of headers which were in the original elf 2092585SN/A //file. This information isn't avaibale by this point. 2102585SN/A //auxv.push_back(buildAuxVect(SPARC_AT_PHNUM, 3)); 2112585SN/A //This is the size of a program header entry. This isn't easy 2122585SN/A //to compute here. 2132585SN/A //auxv.push_back(buildAuxVect(SPARC_AT_PHENT, blah)); 2142585SN/A //This is should be set to load_addr (whatever that is) + 2152585SN/A //e_phoff. I think it's a pointer to the program headers. 2162585SN/A //auxv.push_back(buildAuxVect(SPARC_AT_PHDR, blah)); 2172585SN/A //This should be easy to get right, but I won't set it for now 2182585SN/A //auxv.push_back(buildAuxVect(SPARC_AT_CLKTCK, blah)); 2192585SN/A auxv.push_back(buildAuxVect(SPARC_AT_PAGESZ, SparcISA::VMPageSize)); 2202585SN/A auxv.push_back(buildAuxVect(SPARC_AT_HWCAP, hwcap)); 2212585SN/A 2222561SN/A //Figure out how big the initial stack needs to be 2232561SN/A 2242585SN/A //Each auxilliary vector is two 8 byte words 2252585SN/A int aux_data_size = 2 * intSize * auxv.size(); 2262561SN/A int env_data_size = 0; 2272561SN/A for (int i = 0; i < envp.size(); ++i) { 2282561SN/A env_data_size += envp[i].size() + 1; 2292561SN/A } 2302561SN/A int arg_data_size = 0; 2312561SN/A for (int i = 0; i < argv.size(); ++i) { 2322561SN/A arg_data_size += argv[i].size() + 1; 2332561SN/A } 2342561SN/A 2352561SN/A int aux_array_size = intSize * 2 * (auxv.size() + 1); 2362561SN/A 2372561SN/A int argv_array_size = intSize * (argv.size() + 1); 2382561SN/A int envp_array_size = intSize * (envp.size() + 1); 2392561SN/A 2402561SN/A int argc_size = intSize; 2412561SN/A int window_save_size = intSize * 16; 2422561SN/A 2432561SN/A int info_block_size = 2442561SN/A (aux_data_size + 2452561SN/A env_data_size + 2462561SN/A arg_data_size + 2472561SN/A ~alignmentMask) & alignmentMask; 2482561SN/A 2492561SN/A int info_block_padding = 2502561SN/A info_block_size - 2512561SN/A aux_data_size - 2522561SN/A env_data_size - 2532561SN/A arg_data_size; 2542561SN/A 2552561SN/A int space_needed = 2562561SN/A info_block_size + 2572561SN/A aux_array_size + 2582561SN/A envp_array_size + 2592561SN/A argv_array_size + 2602561SN/A argc_size + 2612561SN/A window_save_size; 2622561SN/A 2632561SN/A stack_min = stack_base - space_needed; 2642561SN/A stack_min &= alignmentMask; 2652561SN/A stack_size = stack_base - stack_min; 2662561SN/A 2672561SN/A // map memory 2682561SN/A pTable->allocate(roundDown(stack_min, pageSize), 2692561SN/A roundUp(stack_size, pageSize)); 2702561SN/A 2712561SN/A // map out initial stack contents 2722561SN/A Addr aux_data_base = stack_base - aux_data_size - info_block_padding; 2732561SN/A Addr env_data_base = aux_data_base - env_data_size; 2742561SN/A Addr arg_data_base = env_data_base - arg_data_size; 2752585SN/A Addr auxv_array_base = arg_data_base - aux_array_size; 2762585SN/A Addr envp_array_base = auxv_array_base - envp_array_size; 2772561SN/A Addr argv_array_base = envp_array_base - argv_array_size; 2782561SN/A Addr argc_base = argv_array_base - argc_size; 2792561SN/A Addr window_save_base = argc_base - window_save_size; 2802561SN/A 2812561SN/A DPRINTF(Sparc, "The addresses of items on the initial stack:\n"); 2822561SN/A DPRINTF(Sparc, "0x%x - aux data\n", aux_data_base); 2832561SN/A DPRINTF(Sparc, "0x%x - env data\n", env_data_base); 2842561SN/A DPRINTF(Sparc, "0x%x - arg data\n", arg_data_base); 2852585SN/A DPRINTF(Sparc, "0x%x - auxv array\n", auxv_array_base); 2862585SN/A DPRINTF(Sparc, "0x%x - envp array\n", envp_array_base); 2872585SN/A DPRINTF(Sparc, "0x%x - argv array\n", argv_array_base); 2882561SN/A DPRINTF(Sparc, "0x%x - argc \n", argc_base); 2892561SN/A DPRINTF(Sparc, "0x%x - window save\n", window_save_base); 2902561SN/A DPRINTF(Sparc, "0x%x - stack min\n", stack_min); 2912561SN/A 2922561SN/A // write contents to stack 2932561SN/A uint64_t argc = argv.size(); 2942585SN/A uint64_t guestArgc = TheISA::htog(argc); 2952561SN/A 2962585SN/A //Copy the aux stuff 2972585SN/A for(int x = 0; x < auxv.size(); x++) 2982585SN/A { 2992585SN/A initVirtMem->writeBlob(auxv_array_base + x * 2 * intSize, 3002585SN/A (uint8_t*)&(auxv[x].a_type), intSize); 3012585SN/A initVirtMem->writeBlob(auxv_array_base + (x * 2 + 1) * intSize, 3022585SN/A (uint8_t*)&(auxv[x].a_val), intSize); 3032585SN/A } 3042585SN/A //Write out the terminating zeroed auxilliary vector 3052561SN/A const uint64_t zero = 0; 3062585SN/A initVirtMem->writeBlob(auxv_array_base + 2 * intSize * auxv.size(), 3072585SN/A (uint8_t*)&zero, 2 * intSize); 3082561SN/A 3092561SN/A copyStringArray(envp, envp_array_base, env_data_base, initVirtMem); 3102561SN/A copyStringArray(argv, argv_array_base, arg_data_base, initVirtMem); 3112561SN/A 3122585SN/A initVirtMem->writeBlob(argc_base, (uint8_t*)&guestArgc, intSize); 3132561SN/A 3142680Sktlim@umich.edu threadContexts[0]->setIntReg(ArgumentReg0, argc); 3152680Sktlim@umich.edu threadContexts[0]->setIntReg(ArgumentReg1, argv_array_base); 3162680Sktlim@umich.edu threadContexts[0]->setIntReg(StackPointerReg, stack_min - StackBias); 3172561SN/A 3182561SN/A Addr prog_entry = objFile->entryPoint(); 3192680Sktlim@umich.edu threadContexts[0]->setPC(prog_entry); 3202680Sktlim@umich.edu threadContexts[0]->setNextPC(prog_entry + sizeof(MachInst)); 3212680Sktlim@umich.edu threadContexts[0]->setNextNPC(prog_entry + (2 * sizeof(MachInst))); 3222561SN/A 3232561SN/A// num_processes++; 3242561SN/A} 3252474SN/A 3262474SN/A 3272474SN/ABEGIN_DECLARE_SIM_OBJECT_PARAMS(SparcLiveProcess) 3282474SN/A 3292474SN/A VectorParam<string> cmd; 3302474SN/A Param<string> executable; 3312474SN/A Param<string> input; 3322474SN/A Param<string> output; 3332474SN/A VectorParam<string> env; 3342474SN/A SimObjectParam<System *> system; 3352474SN/A 3362474SN/AEND_DECLARE_SIM_OBJECT_PARAMS(SparcLiveProcess) 3372474SN/A 3382474SN/A 3392474SN/ABEGIN_INIT_SIM_OBJECT_PARAMS(SparcLiveProcess) 3402474SN/A 3412474SN/A INIT_PARAM(cmd, "command line (executable plus arguments)"), 3422474SN/A INIT_PARAM(executable, "executable (overrides cmd[0] if set)"), 3432474SN/A INIT_PARAM(input, "filename for stdin (dflt: use sim stdin)"), 3442474SN/A INIT_PARAM(output, "filename for stdout/stderr (dflt: use sim stdout)"), 3452474SN/A INIT_PARAM(env, "environment settings"), 3462474SN/A INIT_PARAM(system, "system") 3472474SN/A 3482474SN/AEND_INIT_SIM_OBJECT_PARAMS(SparcLiveProcess) 3492474SN/A 3502474SN/A 3512474SN/ACREATE_SIM_OBJECT(SparcLiveProcess) 3522474SN/A{ 3532474SN/A string in = input; 3542474SN/A string out = output; 3552474SN/A 3562474SN/A // initialize file descriptors to default: same as simulator 3572474SN/A int stdin_fd, stdout_fd, stderr_fd; 3582474SN/A 3592474SN/A if (in == "stdin" || in == "cin") 3602474SN/A stdin_fd = STDIN_FILENO; 3612474SN/A else 3622474SN/A stdin_fd = Process::openInputFile(input); 3632474SN/A 3642474SN/A if (out == "stdout" || out == "cout") 3652474SN/A stdout_fd = STDOUT_FILENO; 3662474SN/A else if (out == "stderr" || out == "cerr") 3672474SN/A stdout_fd = STDERR_FILENO; 3682474SN/A else 3692474SN/A stdout_fd = Process::openOutputFile(out); 3702474SN/A 3712474SN/A stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO; 3722474SN/A 3732474SN/A return SparcLiveProcess::create(getInstanceName(), system, 3742474SN/A stdin_fd, stdout_fd, stderr_fd, 3752474SN/A (string)executable == "" ? cmd[0] : executable, 3762474SN/A cmd, env); 3772474SN/A} 3782474SN/A 3792474SN/A 3802474SN/AREGISTER_SIM_OBJECT("SparcLiveProcess", SparcLiveProcess) 3812474SN/A 3822474SN/A 383