semihosting.cc revision 14010
112531Sandreas.sandberg@arm.com/* 212531Sandreas.sandberg@arm.com * Copyright (c) 2018 ARM Limited 312531Sandreas.sandberg@arm.com * All rights reserved 412531Sandreas.sandberg@arm.com * 512531Sandreas.sandberg@arm.com * The license below extends only to copyright in the software and shall 612531Sandreas.sandberg@arm.com * not be construed as granting a license to any other intellectual 712531Sandreas.sandberg@arm.com * property including but not limited to intellectual property relating 812531Sandreas.sandberg@arm.com * to a hardware implementation of the functionality of the software 912531Sandreas.sandberg@arm.com * licensed hereunder. You may use the software subject to the license 1012531Sandreas.sandberg@arm.com * terms below provided that you ensure that this notice is replicated 1112531Sandreas.sandberg@arm.com * unmodified and in its entirety in all distributions of the software, 1212531Sandreas.sandberg@arm.com * modified or unmodified, in source code or in binary form. 1312531Sandreas.sandberg@arm.com * 1412531Sandreas.sandberg@arm.com * Redistribution and use in source and binary forms, with or without 1512531Sandreas.sandberg@arm.com * modification, are permitted provided that the following conditions are 1612531Sandreas.sandberg@arm.com * met: redistributions of source code must retain the above copyright 1712531Sandreas.sandberg@arm.com * notice, this list of conditions and the following disclaimer; 1812531Sandreas.sandberg@arm.com * redistributions in binary form must reproduce the above copyright 1912531Sandreas.sandberg@arm.com * notice, this list of conditions and the following disclaimer in the 2012531Sandreas.sandberg@arm.com * documentation and/or other materials provided with the distribution; 2112531Sandreas.sandberg@arm.com * neither the name of the copyright holders nor the names of its 2212531Sandreas.sandberg@arm.com * contributors may be used to endorse or promote products derived from 2312531Sandreas.sandberg@arm.com * this software without specific prior written permission. 2412531Sandreas.sandberg@arm.com * 2512531Sandreas.sandberg@arm.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2612531Sandreas.sandberg@arm.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 2712531Sandreas.sandberg@arm.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2812531Sandreas.sandberg@arm.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2912531Sandreas.sandberg@arm.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 3012531Sandreas.sandberg@arm.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 3112531Sandreas.sandberg@arm.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 3212531Sandreas.sandberg@arm.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 3312531Sandreas.sandberg@arm.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 3412531Sandreas.sandberg@arm.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 3512531Sandreas.sandberg@arm.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3612531Sandreas.sandberg@arm.com * 3712531Sandreas.sandberg@arm.com * Authors: Andreas Sandberg 3812531Sandreas.sandberg@arm.com */ 3912531Sandreas.sandberg@arm.com 4012531Sandreas.sandberg@arm.com#include "arch/arm/semihosting.hh" 4112531Sandreas.sandberg@arm.com 4212531Sandreas.sandberg@arm.com#include <cstdio> 4312531Sandreas.sandberg@arm.com 4412531Sandreas.sandberg@arm.com#include "arch/arm/utility.hh" 4512531Sandreas.sandberg@arm.com#include "base/logging.hh" 4612531Sandreas.sandberg@arm.com#include "base/time.hh" 4712531Sandreas.sandberg@arm.com#include "debug/Semihosting.hh" 4812531Sandreas.sandberg@arm.com#include "dev/serial/serial.hh" 4912531Sandreas.sandberg@arm.com#include "mem/physical.hh" 5014007Sgabeblack@google.com#include "mem/secure_port_proxy.hh" 5112531Sandreas.sandberg@arm.com#include "params/ArmSemihosting.hh" 5212531Sandreas.sandberg@arm.com#include "sim/byteswap.hh" 5312531Sandreas.sandberg@arm.com#include "sim/sim_exit.hh" 5412531Sandreas.sandberg@arm.com#include "sim/system.hh" 5512531Sandreas.sandberg@arm.com 5612531Sandreas.sandberg@arm.comconst std::map<uint32_t, ArmSemihosting::SemiCall> ArmSemihosting::calls{ 5712531Sandreas.sandberg@arm.com { 0x01, { "SYS_OPEN", &ArmSemihosting::callOpen, 3, 3 } }, 5812531Sandreas.sandberg@arm.com { 0x02, { "SYS_CLOSE", &ArmSemihosting::callClose, 1, 1 } }, 5912531Sandreas.sandberg@arm.com 6012531Sandreas.sandberg@arm.com // Write(C|0) are special since we want to read the character 6112531Sandreas.sandberg@arm.com // manually. We therefore declare them as having 0 params. 6212531Sandreas.sandberg@arm.com { 0x03, { "SYS_WRITEC", &ArmSemihosting::callWriteC, 0, 0 } }, 6312531Sandreas.sandberg@arm.com { 0x04, { "SYS_WRITE0", &ArmSemihosting::callWrite0, 1, 1 } }, 6412531Sandreas.sandberg@arm.com 6512531Sandreas.sandberg@arm.com { 0x05, { "SYS_WRITE", &ArmSemihosting::callWrite, 3, 3 } }, 6612531Sandreas.sandberg@arm.com { 0x06, { "SYS_READ", &ArmSemihosting::callRead, 3, 3 } }, 6712531Sandreas.sandberg@arm.com { 0x07, { "SYS_READC", &ArmSemihosting::callReadC, 0, 0 } }, 6812531Sandreas.sandberg@arm.com { 0x08, { "SYS_ISERROR", &ArmSemihosting::callIsError, 1, 1 } }, 6912531Sandreas.sandberg@arm.com { 0x09, { "SYS_ISTTY", &ArmSemihosting::callIsTTY, 1, 1 } }, 7012531Sandreas.sandberg@arm.com { 0x0A, { "SYS_SEEK", &ArmSemihosting::callSeek, 2, 2 } }, 7112531Sandreas.sandberg@arm.com { 0x0C, { "SYS_FLEN", &ArmSemihosting::callFLen, 1, 1 } }, 7212531Sandreas.sandberg@arm.com { 0x0D, { "SYS_TMPNAM", &ArmSemihosting::callTmpNam, 3, 3 } }, 7312531Sandreas.sandberg@arm.com { 0x0E, { "SYS_REMOVE", &ArmSemihosting::callRemove, 2, 2} }, 7412531Sandreas.sandberg@arm.com { 0x0F, { "SYS_RENAME", &ArmSemihosting::callRename, 4, 4} }, 7512531Sandreas.sandberg@arm.com { 0x10, { "SYS_CLOCK", &ArmSemihosting::callClock, 0, 0} }, 7612531Sandreas.sandberg@arm.com { 0x11, { "SYS_TIME", &ArmSemihosting::callTime, 0, 0} }, 7712531Sandreas.sandberg@arm.com { 0x12, { "SYS_SYSTEM", &ArmSemihosting::callSystem, 2, 2} }, 7812531Sandreas.sandberg@arm.com { 0x13, { "SYS_ERRNO", &ArmSemihosting::callErrno, 0, 0 } }, 7912699Sandreas.sandberg@arm.com { 0x15, { "SYS_GET_CMDLINE", &ArmSemihosting::callGetCmdLine, 2, 2} }, 8012531Sandreas.sandberg@arm.com { 0x16, { "SYS_HEAPINFO", &ArmSemihosting::callHeapInfo, 1, 1} }, 8112531Sandreas.sandberg@arm.com 8212531Sandreas.sandberg@arm.com // Exit is special and requires custom handling in aarch32. 8312531Sandreas.sandberg@arm.com { 0x18, { "SYS_EXIT", &ArmSemihosting::callExit, 0, 2 } }, 8412531Sandreas.sandberg@arm.com { 0x20, { "SYS_EXIT_EXTENDED", &ArmSemihosting::callExitExtended, 2, 2 } }, 8512531Sandreas.sandberg@arm.com 8612531Sandreas.sandberg@arm.com { 0x30, { "SYS_ELAPSED", &ArmSemihosting::callElapsed, 0, 0 } }, 8712531Sandreas.sandberg@arm.com { 0x31, { "SYS_TICKFREQ", &ArmSemihosting::callTickFreq, 0, 0 } }, 8812531Sandreas.sandberg@arm.com}; 8912531Sandreas.sandberg@arm.com 9012531Sandreas.sandberg@arm.comconst std::vector<const char *> ArmSemihosting::fmodes{ 9112531Sandreas.sandberg@arm.com "r", "rb", "r+", "r+b", 9212531Sandreas.sandberg@arm.com "w", "wb", "w+", "w+b", 9312531Sandreas.sandberg@arm.com "a", "ab", "a+", "a+b", 9412531Sandreas.sandberg@arm.com}; 9512531Sandreas.sandberg@arm.com 9612531Sandreas.sandberg@arm.comconst std::map<uint64_t, const char *> ArmSemihosting::exitCodes{ 9712531Sandreas.sandberg@arm.com { 0x20000, "semi:ADP_Stopped_BranchThroughZero" }, 9812531Sandreas.sandberg@arm.com { 0x20001, "semi:ADP_Stopped_UndefinedInstr" }, 9912531Sandreas.sandberg@arm.com { 0x20002, "semi:ADP_Stopped_SoftwareInterrupt" }, 10012531Sandreas.sandberg@arm.com { 0x20003, "semi:ADP_Stopped_PrefetchAbort" }, 10112531Sandreas.sandberg@arm.com { 0x20004, "semi:ADP_Stopped_DataAbort" }, 10212531Sandreas.sandberg@arm.com { 0x20005, "semi:ADP_Stopped_AddressException" }, 10312531Sandreas.sandberg@arm.com { 0x20006, "semi:ADP_Stopped_IRQ" }, 10412531Sandreas.sandberg@arm.com { 0x20007, "semi:ADP_Stopped_FIQ" }, 10512531Sandreas.sandberg@arm.com 10612531Sandreas.sandberg@arm.com { 0x20020, "semi:ADP_Stopped_BreakPoint" }, 10712531Sandreas.sandberg@arm.com { 0x20021, "semi:ADP_Stopped_WatchPoint" }, 10812531Sandreas.sandberg@arm.com { 0x20022, "semi:ADP_Stopped_StepComplete" }, 10912531Sandreas.sandberg@arm.com { 0x20023, "semi:ADP_Stopped_RunTimeErrorUnknown" }, 11012531Sandreas.sandberg@arm.com { 0x20024, "semi:ADP_Stopped_InternalError" }, 11112531Sandreas.sandberg@arm.com { 0x20025, "semi:ADP_Stopped_UserInterruption" }, 11212531Sandreas.sandberg@arm.com { 0x20026, "semi:ADP_Stopped_ApplicationExit" }, 11312531Sandreas.sandberg@arm.com { 0x20027, "semi:ADP_Stopped_StackOverflow" }, 11412531Sandreas.sandberg@arm.com { 0x20028, "semi:ADP_Stopped_DivisionByZero" }, 11512531Sandreas.sandberg@arm.com { 0x20029, "semi:ADP_Stopped_DivisionByZero" }, 11612531Sandreas.sandberg@arm.com}; 11712531Sandreas.sandberg@arm.com 11812531Sandreas.sandberg@arm.com 11912531Sandreas.sandberg@arm.comconst std::vector<uint8_t> ArmSemihosting::features{ 12012531Sandreas.sandberg@arm.com 0x53, 0x48, 0x46, 0x42, // Magic 12112531Sandreas.sandberg@arm.com 0x3, // EXT_EXIT_EXTENDED, EXT_STDOUT_STDERR 12212531Sandreas.sandberg@arm.com}; 12312531Sandreas.sandberg@arm.com 12412698Sandreas.sandberg@arm.comconst std::map<const std::string, FILE *> ArmSemihosting::stdioMap{ 12512698Sandreas.sandberg@arm.com {"cin", ::stdin}, 12612698Sandreas.sandberg@arm.com {"stdin", ::stdin}, 12712698Sandreas.sandberg@arm.com {"cout", ::stdout}, 12812698Sandreas.sandberg@arm.com {"stdout", ::stdout}, 12912698Sandreas.sandberg@arm.com {"cerr", ::stderr}, 13012698Sandreas.sandberg@arm.com {"stderr", ::stderr}, 13112698Sandreas.sandberg@arm.com}; 13212698Sandreas.sandberg@arm.com 13312531Sandreas.sandberg@arm.comArmSemihosting::ArmSemihosting(const ArmSemihostingParams *p) 13412531Sandreas.sandberg@arm.com : SimObject(p), 13512531Sandreas.sandberg@arm.com cmdLine(p->cmd_line), 13612531Sandreas.sandberg@arm.com memReserve(p->mem_reserve), 13712531Sandreas.sandberg@arm.com stackSize(p->stack_size), 13812531Sandreas.sandberg@arm.com timeBase([p]{ struct tm t = p->time; return mkutctime(&t); }()), 13912531Sandreas.sandberg@arm.com tickShift(calcTickShift()), 14012698Sandreas.sandberg@arm.com semiErrno(0), 14112698Sandreas.sandberg@arm.com stdin(getSTDIO("stdin", p->stdin, "r")), 14212698Sandreas.sandberg@arm.com stdout(getSTDIO("stdout", p->stdout, "w")), 14312698Sandreas.sandberg@arm.com stderr(p->stderr == p->stdout ? 14412698Sandreas.sandberg@arm.com stdout : getSTDIO("stderr", p->stderr, "w")) 14512531Sandreas.sandberg@arm.com{ 14612531Sandreas.sandberg@arm.com // Create an empty place-holder file for position 0 as semi-hosting 14712531Sandreas.sandberg@arm.com // calls typically expect non-zero file handles. 14812531Sandreas.sandberg@arm.com files.push_back(nullptr); 14912531Sandreas.sandberg@arm.com 15012531Sandreas.sandberg@arm.com if (tickShift > 0) 15112531Sandreas.sandberg@arm.com inform("Semihosting: Shifting elapsed ticks by %i bits.", 15212531Sandreas.sandberg@arm.com tickShift); 15312531Sandreas.sandberg@arm.com} 15412531Sandreas.sandberg@arm.com 15512531Sandreas.sandberg@arm.comuint64_t 15612531Sandreas.sandberg@arm.comArmSemihosting::call64(ThreadContext *tc, uint32_t op, uint64_t param) 15712531Sandreas.sandberg@arm.com{ 15812531Sandreas.sandberg@arm.com const SemiCall *call = getCall(op, true); 15912531Sandreas.sandberg@arm.com if (!call) { 16012531Sandreas.sandberg@arm.com warn("Unknown aarch64 semihosting call: op = 0x%x, param = 0x%x", 16112531Sandreas.sandberg@arm.com op, param); 16212531Sandreas.sandberg@arm.com 16312531Sandreas.sandberg@arm.com return (uint64_t)-1; 16412531Sandreas.sandberg@arm.com } else if (!call->implemented64()) { 16512531Sandreas.sandberg@arm.com warn("Unimplemented aarch64 semihosting call: " 16612531Sandreas.sandberg@arm.com "%s (op = 0x%x, param = 0x%x)", 16712531Sandreas.sandberg@arm.com call->name, op, param); 16812531Sandreas.sandberg@arm.com 16912531Sandreas.sandberg@arm.com return (uint64_t)-1; 17012531Sandreas.sandberg@arm.com } 17112531Sandreas.sandberg@arm.com 17212531Sandreas.sandberg@arm.com std::vector<uint64_t> argv(call->argc64 + 1); 17312533Sandreas.sandberg@arm.com PortProxy &proxy = physProxy(tc); 17412531Sandreas.sandberg@arm.com ByteOrder endian = ArmISA::byteOrder(tc); 17512531Sandreas.sandberg@arm.com 17612531Sandreas.sandberg@arm.com DPRINTF(Semihosting, "Semihosting call64: %s(0x%x)\n", call->name, param); 17712531Sandreas.sandberg@arm.com argv[0] = param; 17812531Sandreas.sandberg@arm.com for (int i = 0; i < call->argc64; ++i) { 17913893Sgabeblack@google.com argv[i + 1] = proxy.read<uint64_t>(param + i * 8, endian); 18012531Sandreas.sandberg@arm.com DPRINTF(Semihosting, "\t: 0x%x\n", argv[i + 1]); 18112531Sandreas.sandberg@arm.com } 18212531Sandreas.sandberg@arm.com 18312531Sandreas.sandberg@arm.com auto ret_errno = (this->*call->call)(tc, true, argv); 18412531Sandreas.sandberg@arm.com semiErrno = ret_errno.second; 18512531Sandreas.sandberg@arm.com DPRINTF(Semihosting, "\t ->: 0x%x, %i\n", 18612531Sandreas.sandberg@arm.com ret_errno.first, ret_errno.second); 18712531Sandreas.sandberg@arm.com return ret_errno.first; 18812531Sandreas.sandberg@arm.com} 18912531Sandreas.sandberg@arm.com 19012531Sandreas.sandberg@arm.comuint32_t 19112531Sandreas.sandberg@arm.comArmSemihosting::call32(ThreadContext *tc, uint32_t op, uint32_t param) 19212531Sandreas.sandberg@arm.com{ 19312531Sandreas.sandberg@arm.com const SemiCall *call = getCall(op, false); 19412531Sandreas.sandberg@arm.com if (!call) { 19512531Sandreas.sandberg@arm.com warn("Unknown aarch32 semihosting call: op = 0x%x, param = 0x%x", 19612531Sandreas.sandberg@arm.com op, param); 19712531Sandreas.sandberg@arm.com 19812531Sandreas.sandberg@arm.com return (uint32_t)-1; 19912531Sandreas.sandberg@arm.com } else if (!call->implemented32()) { 20012531Sandreas.sandberg@arm.com warn("Unimplemented aarch32 semihosting call: " 20112531Sandreas.sandberg@arm.com "%s (op = 0x%x, param = 0x%x)", 20212531Sandreas.sandberg@arm.com call->name, op, param); 20312531Sandreas.sandberg@arm.com 20412531Sandreas.sandberg@arm.com return (uint32_t)-1; 20512531Sandreas.sandberg@arm.com } 20612531Sandreas.sandberg@arm.com 20712531Sandreas.sandberg@arm.com std::vector<uint64_t> argv(call->argc32 + 1); 20812533Sandreas.sandberg@arm.com PortProxy &proxy = physProxy(tc); 20912531Sandreas.sandberg@arm.com ByteOrder endian = ArmISA::byteOrder(tc); 21012531Sandreas.sandberg@arm.com 21112531Sandreas.sandberg@arm.com DPRINTF(Semihosting, "Semihosting call32: %s(0x%x)\n", call->name, param); 21212531Sandreas.sandberg@arm.com argv[0] = param; 21312531Sandreas.sandberg@arm.com for (int i = 0; i < call->argc32; ++i) { 21413893Sgabeblack@google.com argv[i + 1] = proxy.read<uint32_t>(param + i * 4, endian); 21512531Sandreas.sandberg@arm.com DPRINTF(Semihosting, "\t: 0x%x\n", argv[i + 1]); 21612531Sandreas.sandberg@arm.com } 21712531Sandreas.sandberg@arm.com 21812531Sandreas.sandberg@arm.com auto ret_errno = (this->*call->call)(tc, false, argv); 21912531Sandreas.sandberg@arm.com semiErrno = ret_errno.second; 22012531Sandreas.sandberg@arm.com DPRINTF(Semihosting, "\t ->: 0x%x, %i\n", 22112531Sandreas.sandberg@arm.com ret_errno.first, ret_errno.second); 22212531Sandreas.sandberg@arm.com return ret_errno.first; 22312531Sandreas.sandberg@arm.com} 22412531Sandreas.sandberg@arm.com 22512531Sandreas.sandberg@arm.comvoid 22612531Sandreas.sandberg@arm.comArmSemihosting::serialize(CheckpointOut &cp) const 22712531Sandreas.sandberg@arm.com{ 22812531Sandreas.sandberg@arm.com SERIALIZE_SCALAR(semiErrno); 22912531Sandreas.sandberg@arm.com 23012531Sandreas.sandberg@arm.com paramOut(cp, "num_files", files.size()); 23112531Sandreas.sandberg@arm.com for (int i = 0; i < files.size(); i++) { 23212531Sandreas.sandberg@arm.com // File closed? 23312531Sandreas.sandberg@arm.com if (!files[i]) 23412531Sandreas.sandberg@arm.com continue; 23512531Sandreas.sandberg@arm.com 23612531Sandreas.sandberg@arm.com files[i]->serializeSection(cp, csprintf("file%i", i)); 23712531Sandreas.sandberg@arm.com } 23812531Sandreas.sandberg@arm.com} 23912531Sandreas.sandberg@arm.com 24012531Sandreas.sandberg@arm.comvoid 24112531Sandreas.sandberg@arm.comArmSemihosting::unserialize(CheckpointIn &cp) 24212531Sandreas.sandberg@arm.com{ 24312531Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(semiErrno); 24412531Sandreas.sandberg@arm.com 24512531Sandreas.sandberg@arm.com size_t num_files; 24612531Sandreas.sandberg@arm.com paramIn(cp, "num_files", num_files); 24712531Sandreas.sandberg@arm.com files.resize(num_files); 24812531Sandreas.sandberg@arm.com for (int i = 0; i < num_files; i++) 24912531Sandreas.sandberg@arm.com files[i] = FileBase::create(*this, cp, csprintf("file%i", i)); 25012531Sandreas.sandberg@arm.com} 25112531Sandreas.sandberg@arm.com 25212533Sandreas.sandberg@arm.comPortProxy & 25312533Sandreas.sandberg@arm.comArmSemihosting::physProxy(ThreadContext *tc) 25412533Sandreas.sandberg@arm.com{ 25512533Sandreas.sandberg@arm.com if (ArmISA::inSecureState(tc)) { 25612533Sandreas.sandberg@arm.com if (!physProxyS) { 25712533Sandreas.sandberg@arm.com System *sys = tc->getSystemPtr(); 25812533Sandreas.sandberg@arm.com physProxyS.reset(new SecurePortProxy( 25912533Sandreas.sandberg@arm.com sys->getSystemPort(), 26012533Sandreas.sandberg@arm.com sys->cacheLineSize())); 26112533Sandreas.sandberg@arm.com } 26212533Sandreas.sandberg@arm.com return *physProxyS; 26312533Sandreas.sandberg@arm.com } else { 26412533Sandreas.sandberg@arm.com return tc->getPhysProxy(); 26512533Sandreas.sandberg@arm.com } 26612533Sandreas.sandberg@arm.com} 26712533Sandreas.sandberg@arm.com 26812533Sandreas.sandberg@arm.com 26912531Sandreas.sandberg@arm.comstd::string 27012531Sandreas.sandberg@arm.comArmSemihosting::readString(ThreadContext *tc, Addr ptr, size_t len) 27112531Sandreas.sandberg@arm.com{ 27212531Sandreas.sandberg@arm.com std::vector<char> buf(len + 1); 27312531Sandreas.sandberg@arm.com 27412531Sandreas.sandberg@arm.com buf[len] = '\0'; 27514010Sgabeblack@google.com physProxy(tc).readBlob(ptr, buf.data(), len); 27612531Sandreas.sandberg@arm.com 27712531Sandreas.sandberg@arm.com return std::string(buf.data()); 27812531Sandreas.sandberg@arm.com} 27912531Sandreas.sandberg@arm.com 28012531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 28112531Sandreas.sandberg@arm.comArmSemihosting::callOpen(ThreadContext *tc, bool aarch64, 28212531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 28312531Sandreas.sandberg@arm.com{ 28412531Sandreas.sandberg@arm.com const Addr name_base = argv[1]; 28512531Sandreas.sandberg@arm.com const char *mode = argv[2] < fmodes.size() ? fmodes[argv[2]] : nullptr; 28612531Sandreas.sandberg@arm.com const Addr name_size = argv[3]; 28712531Sandreas.sandberg@arm.com 28812531Sandreas.sandberg@arm.com DPRINTF(Semihosting, "Semihosting SYS_OPEN(0x%x, %i[%s], %i)\n", 28912531Sandreas.sandberg@arm.com name_base, argv[2], mode ? mode : "-", name_size); 29012531Sandreas.sandberg@arm.com if (!mode || !name_base) 29112531Sandreas.sandberg@arm.com return retError(EINVAL); 29212531Sandreas.sandberg@arm.com 29312531Sandreas.sandberg@arm.com std::string fname = readString(tc, name_base, name_size); 29412531Sandreas.sandberg@arm.com 29512531Sandreas.sandberg@arm.com std::unique_ptr<ArmSemihosting::FileBase> file = 29612531Sandreas.sandberg@arm.com FileBase::create(*this, fname, mode); 29712531Sandreas.sandberg@arm.com int64_t ret = file->open(); 29812531Sandreas.sandberg@arm.com DPRINTF(Semihosting, "Semihosting SYS_OPEN(\"%s\", %i[%s]): %i\n", 29912531Sandreas.sandberg@arm.com fname, argv[2], mode, ret); 30012531Sandreas.sandberg@arm.com if (ret < 0) { 30112531Sandreas.sandberg@arm.com return retError(-ret); 30212531Sandreas.sandberg@arm.com } else { 30312531Sandreas.sandberg@arm.com files.push_back(std::move(file)); 30412531Sandreas.sandberg@arm.com return retOK(files.size() - 1); 30512531Sandreas.sandberg@arm.com } 30612531Sandreas.sandberg@arm.com} 30712531Sandreas.sandberg@arm.com 30812531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 30912531Sandreas.sandberg@arm.comArmSemihosting::callClose(ThreadContext *tc, bool aarch64, 31012531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 31112531Sandreas.sandberg@arm.com{ 31212531Sandreas.sandberg@arm.com if (argv[1] > files.size()) { 31312531Sandreas.sandberg@arm.com DPRINTF(Semihosting, "Semihosting SYS_CLOSE(%i): Illegal file\n"); 31412531Sandreas.sandberg@arm.com return retError(EBADF); 31512531Sandreas.sandberg@arm.com } 31612531Sandreas.sandberg@arm.com 31712531Sandreas.sandberg@arm.com std::unique_ptr<FileBase> &file = files[argv[1]]; 31812531Sandreas.sandberg@arm.com int64_t error = file->close(); 31912531Sandreas.sandberg@arm.com DPRINTF(Semihosting, "Semihosting SYS_CLOSE(%i[%s]): %i\n", 32012531Sandreas.sandberg@arm.com argv[1], file->fileName(), error); 32112531Sandreas.sandberg@arm.com if (error < 0) { 32212531Sandreas.sandberg@arm.com return retError(-error); 32312531Sandreas.sandberg@arm.com } else { 32412531Sandreas.sandberg@arm.com // Zap the pointer and free the entry in the file table as 32512531Sandreas.sandberg@arm.com // well. 32612531Sandreas.sandberg@arm.com files[argv[1]].reset(); 32712531Sandreas.sandberg@arm.com return retOK(0); 32812531Sandreas.sandberg@arm.com } 32912531Sandreas.sandberg@arm.com} 33012531Sandreas.sandberg@arm.com 33112531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 33212531Sandreas.sandberg@arm.comArmSemihosting::callWriteC(ThreadContext *tc, bool aarch64, 33312531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 33412531Sandreas.sandberg@arm.com{ 33512533Sandreas.sandberg@arm.com const char c = physProxy(tc).read<char>(argv[0]); 33612531Sandreas.sandberg@arm.com 33712531Sandreas.sandberg@arm.com DPRINTF(Semihosting, "Semihosting SYS_WRITEC('%c')\n", c); 33812531Sandreas.sandberg@arm.com std::cout.put(c); 33912531Sandreas.sandberg@arm.com 34012531Sandreas.sandberg@arm.com return retOK(0); 34112531Sandreas.sandberg@arm.com} 34212531Sandreas.sandberg@arm.com 34312531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 34412531Sandreas.sandberg@arm.comArmSemihosting::callWrite0(ThreadContext *tc, bool aarch64, 34512531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 34612531Sandreas.sandberg@arm.com{ 34712531Sandreas.sandberg@arm.com DPRINTF(Semihosting, "Semihosting SYS_WRITE0(...)\n"); 34812533Sandreas.sandberg@arm.com PortProxy &proxy = physProxy(tc); 34912531Sandreas.sandberg@arm.com for (Addr addr = (Addr)argv[0]; ; ++addr) { 35012531Sandreas.sandberg@arm.com char data = proxy.read<char>(addr); 35112531Sandreas.sandberg@arm.com if (data == 0) 35212531Sandreas.sandberg@arm.com break; 35312531Sandreas.sandberg@arm.com 35412531Sandreas.sandberg@arm.com std::cout.put(data); 35512531Sandreas.sandberg@arm.com } 35612531Sandreas.sandberg@arm.com 35712531Sandreas.sandberg@arm.com return retOK(0); 35812531Sandreas.sandberg@arm.com} 35912531Sandreas.sandberg@arm.com 36012531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 36112531Sandreas.sandberg@arm.comArmSemihosting::callWrite(ThreadContext *tc, bool aarch64, 36212531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 36312531Sandreas.sandberg@arm.com{ 36412531Sandreas.sandberg@arm.com if (argv[1] > files.size() || !files[argv[1]]) 36512531Sandreas.sandberg@arm.com return RetErrno(argv[3], EBADF); 36612531Sandreas.sandberg@arm.com 36712531Sandreas.sandberg@arm.com std::vector<uint8_t> buffer(argv[3]); 36812533Sandreas.sandberg@arm.com physProxy(tc).readBlob(argv[2], buffer.data(), buffer.size()); 36912531Sandreas.sandberg@arm.com 37012531Sandreas.sandberg@arm.com int64_t ret = files[argv[1]]->write(buffer.data(), buffer.size()); 37112531Sandreas.sandberg@arm.com if (ret < 0) { 37212531Sandreas.sandberg@arm.com // No bytes written (we're returning the number of bytes not 37312531Sandreas.sandberg@arm.com // written) 37412531Sandreas.sandberg@arm.com return RetErrno(argv[3], -ret); 37512531Sandreas.sandberg@arm.com } else { 37612531Sandreas.sandberg@arm.com // Return the number of bytes not written 37712531Sandreas.sandberg@arm.com return RetErrno(argv[3] - ret, 0); 37812531Sandreas.sandberg@arm.com } 37912531Sandreas.sandberg@arm.com} 38012531Sandreas.sandberg@arm.com 38112531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 38212531Sandreas.sandberg@arm.comArmSemihosting::callRead(ThreadContext *tc, bool aarch64, 38312531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 38412531Sandreas.sandberg@arm.com{ 38512531Sandreas.sandberg@arm.com if (argv[1] > files.size() || !files[argv[1]]) 38612531Sandreas.sandberg@arm.com return RetErrno(argv[3], EBADF); 38712531Sandreas.sandberg@arm.com 38812531Sandreas.sandberg@arm.com std::vector<uint8_t> buffer(argv[3]); 38912531Sandreas.sandberg@arm.com int64_t ret = files[argv[1]]->read(buffer.data(), buffer.size()); 39012531Sandreas.sandberg@arm.com if (ret < 0) { 39112531Sandreas.sandberg@arm.com return RetErrno(argv[3], -ret); 39212531Sandreas.sandberg@arm.com } else { 39312531Sandreas.sandberg@arm.com panic_if(ret > buffer.size(), "Read longer than buffer size."); 39412531Sandreas.sandberg@arm.com 39512533Sandreas.sandberg@arm.com physProxy(tc).writeBlob(argv[2], buffer.data(), ret); 39612531Sandreas.sandberg@arm.com 39712531Sandreas.sandberg@arm.com // Return the number of bytes not written 39812531Sandreas.sandberg@arm.com return retOK(argv[3] - ret); 39912531Sandreas.sandberg@arm.com } 40012531Sandreas.sandberg@arm.com} 40112531Sandreas.sandberg@arm.com 40212531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 40312531Sandreas.sandberg@arm.comArmSemihosting::callReadC(ThreadContext *tc, bool aarch64, 40412531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 40512531Sandreas.sandberg@arm.com{ 40612531Sandreas.sandberg@arm.com return retOK((char)std::cin.get()); 40712531Sandreas.sandberg@arm.com} 40812531Sandreas.sandberg@arm.com 40912531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 41012531Sandreas.sandberg@arm.comArmSemihosting::callIsError(ThreadContext *tc, bool aarch64, 41112531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 41212531Sandreas.sandberg@arm.com{ 41312531Sandreas.sandberg@arm.com // Sign extend from a 32 bit integer in aarch32 since the argument 41412531Sandreas.sandberg@arm.com // reader zero extends to a uint64_t. 41512531Sandreas.sandberg@arm.com const int64_t status = (int64_t)(aarch64 ? argv[1] :sext<32>(argv[1])); 41612531Sandreas.sandberg@arm.com // Assume there was an error if the status value is negative. 41712531Sandreas.sandberg@arm.com return retOK(status < 0 ? 1 : 0); 41812531Sandreas.sandberg@arm.com} 41912531Sandreas.sandberg@arm.com 42012531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 42112531Sandreas.sandberg@arm.comArmSemihosting::callIsTTY(ThreadContext *tc, bool aarch64, 42212531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 42312531Sandreas.sandberg@arm.com{ 42412531Sandreas.sandberg@arm.com if (argv[1] > files.size() || !files[argv[1]]) 42512531Sandreas.sandberg@arm.com return retError(EBADF); 42612531Sandreas.sandberg@arm.com 42712531Sandreas.sandberg@arm.com int64_t ret = files[argv[1]]->isTTY(); 42812531Sandreas.sandberg@arm.com if (ret < 0) { 42912531Sandreas.sandberg@arm.com return retError(-ret); 43012531Sandreas.sandberg@arm.com } else { 43112531Sandreas.sandberg@arm.com return retOK(ret ? 1 : 0); 43212531Sandreas.sandberg@arm.com } 43312531Sandreas.sandberg@arm.com} 43412531Sandreas.sandberg@arm.com 43512531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 43612531Sandreas.sandberg@arm.comArmSemihosting::callSeek(ThreadContext *tc, bool aarch64, 43712531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 43812531Sandreas.sandberg@arm.com{ 43912531Sandreas.sandberg@arm.com if (argv[1] > files.size() || !files[argv[1]]) 44012531Sandreas.sandberg@arm.com return retError(EBADF); 44112531Sandreas.sandberg@arm.com 44212531Sandreas.sandberg@arm.com int64_t ret = files[argv[1]]->seek(argv[2]); 44312531Sandreas.sandberg@arm.com if (ret < 0) { 44412531Sandreas.sandberg@arm.com return retError(-ret); 44512531Sandreas.sandberg@arm.com } else { 44612531Sandreas.sandberg@arm.com return retOK(0); 44712531Sandreas.sandberg@arm.com } 44812531Sandreas.sandberg@arm.com} 44912531Sandreas.sandberg@arm.com 45012531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 45112531Sandreas.sandberg@arm.comArmSemihosting::callFLen(ThreadContext *tc, bool aarch64, 45212531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 45312531Sandreas.sandberg@arm.com{ 45412531Sandreas.sandberg@arm.com if (argv[1] > files.size() || !files[argv[1]]) 45512531Sandreas.sandberg@arm.com return retError(EBADF); 45612531Sandreas.sandberg@arm.com 45712531Sandreas.sandberg@arm.com int64_t ret = files[argv[1]]->isTTY(); 45812531Sandreas.sandberg@arm.com if (ret < 0) { 45912531Sandreas.sandberg@arm.com return retError(-ret); 46012531Sandreas.sandberg@arm.com } else { 46112531Sandreas.sandberg@arm.com return retOK(0); 46212531Sandreas.sandberg@arm.com } 46312531Sandreas.sandberg@arm.com} 46412531Sandreas.sandberg@arm.com 46512531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 46612531Sandreas.sandberg@arm.comArmSemihosting::callTmpNam(ThreadContext *tc, bool aarch64, 46712531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 46812531Sandreas.sandberg@arm.com{ 46912531Sandreas.sandberg@arm.com const Addr guest_buf = argv[1]; 47012531Sandreas.sandberg@arm.com //const uint64_t id = argv[2]; 47112531Sandreas.sandberg@arm.com const uint64_t max_len = argv[3]; 47212531Sandreas.sandberg@arm.com 47312531Sandreas.sandberg@arm.com std::vector<char> buf(L_tmpnam); 47412531Sandreas.sandberg@arm.com char *path = tmpnam(buf.data()); 47512531Sandreas.sandberg@arm.com if (!path) 47612531Sandreas.sandberg@arm.com return retError(EINVAL); 47712531Sandreas.sandberg@arm.com 47812531Sandreas.sandberg@arm.com const size_t path_len = strlen(path); 47912531Sandreas.sandberg@arm.com if (path_len >= max_len) 48012531Sandreas.sandberg@arm.com return retError(ENOSPC); 48112531Sandreas.sandberg@arm.com 48214010Sgabeblack@google.com physProxy(tc).writeBlob(guest_buf, path, path_len + 1); 48312531Sandreas.sandberg@arm.com return retOK(0); 48412531Sandreas.sandberg@arm.com} 48512531Sandreas.sandberg@arm.com 48612531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 48712531Sandreas.sandberg@arm.comArmSemihosting::callRemove(ThreadContext *tc, bool aarch64, 48812531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 48912531Sandreas.sandberg@arm.com{ 49012531Sandreas.sandberg@arm.com std::string fname = readString(tc, argv[1], argv[2]); 49112531Sandreas.sandberg@arm.com 49212531Sandreas.sandberg@arm.com if (remove(fname.c_str()) != 0) { 49312531Sandreas.sandberg@arm.com return retError(errno); 49412531Sandreas.sandberg@arm.com } else { 49512531Sandreas.sandberg@arm.com return retOK(0); 49612531Sandreas.sandberg@arm.com } 49712531Sandreas.sandberg@arm.com} 49812531Sandreas.sandberg@arm.com 49912531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 50012531Sandreas.sandberg@arm.comArmSemihosting::callRename(ThreadContext *tc, bool aarch64, 50112531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 50212531Sandreas.sandberg@arm.com{ 50312531Sandreas.sandberg@arm.com std::string from = readString(tc, argv[1], argv[2]); 50412531Sandreas.sandberg@arm.com std::string to = readString(tc, argv[3], argv[4]); 50512531Sandreas.sandberg@arm.com 50612531Sandreas.sandberg@arm.com if (rename(from.c_str(), to.c_str()) != 0) { 50712531Sandreas.sandberg@arm.com return retError(errno); 50812531Sandreas.sandberg@arm.com } else { 50912531Sandreas.sandberg@arm.com return retOK(0); 51012531Sandreas.sandberg@arm.com } 51112531Sandreas.sandberg@arm.com} 51212531Sandreas.sandberg@arm.com 51312531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 51412531Sandreas.sandberg@arm.comArmSemihosting::callClock(ThreadContext *tc, bool aarch64, 51512531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 51612531Sandreas.sandberg@arm.com{ 51712531Sandreas.sandberg@arm.com return retOK(curTick() / (SimClock::Int::s / 100)); 51812531Sandreas.sandberg@arm.com} 51912531Sandreas.sandberg@arm.com 52012531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 52112531Sandreas.sandberg@arm.comArmSemihosting::callTime(ThreadContext *tc, bool aarch64, 52212531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 52312531Sandreas.sandberg@arm.com{ 52412531Sandreas.sandberg@arm.com return retOK(timeBase + round(curTick() / SimClock::Float::s)); 52512531Sandreas.sandberg@arm.com} 52612531Sandreas.sandberg@arm.com 52712531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 52812531Sandreas.sandberg@arm.comArmSemihosting::callSystem(ThreadContext *tc, bool aarch64, 52912531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 53012531Sandreas.sandberg@arm.com{ 53112531Sandreas.sandberg@arm.com const std::string cmd = readString(tc, argv[1], argv[2]); 53212531Sandreas.sandberg@arm.com warn("Semihosting: SYS_SYSTEM not implemented. Guest tried to run: %s\n", 53312531Sandreas.sandberg@arm.com cmd); 53412531Sandreas.sandberg@arm.com return retError(EINVAL); 53512531Sandreas.sandberg@arm.com 53612531Sandreas.sandberg@arm.com} 53712531Sandreas.sandberg@arm.com 53812531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 53912531Sandreas.sandberg@arm.comArmSemihosting::callErrno(ThreadContext *tc, bool aarch64, 54012531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 54112531Sandreas.sandberg@arm.com{ 54212531Sandreas.sandberg@arm.com // Preserve errno by returning it in errno as well. 54312531Sandreas.sandberg@arm.com return RetErrno(semiErrno, semiErrno); 54412531Sandreas.sandberg@arm.com} 54512531Sandreas.sandberg@arm.com 54612531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 54712531Sandreas.sandberg@arm.comArmSemihosting::callGetCmdLine(ThreadContext *tc, bool aarch64, 54812531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 54912531Sandreas.sandberg@arm.com{ 55012531Sandreas.sandberg@arm.com if (cmdLine.size() + 1 < argv[2]) { 55112533Sandreas.sandberg@arm.com PortProxy &proxy = physProxy(tc); 55212531Sandreas.sandberg@arm.com ByteOrder endian = ArmISA::byteOrder(tc); 55314010Sgabeblack@google.com proxy.writeBlob((Addr)argv[1], cmdLine.c_str(), cmdLine.size() + 1); 55412531Sandreas.sandberg@arm.com 55512531Sandreas.sandberg@arm.com if (aarch64) 55613893Sgabeblack@google.com proxy.write<uint64_t>(argv[0] + 1 * 8, cmdLine.size(), endian); 55712531Sandreas.sandberg@arm.com else 55813893Sgabeblack@google.com proxy.write<uint32_t>(argv[0] + 1 * 4, cmdLine.size(), endian); 55912531Sandreas.sandberg@arm.com return retOK(0); 56012531Sandreas.sandberg@arm.com } else { 56112531Sandreas.sandberg@arm.com return retError(0); 56212531Sandreas.sandberg@arm.com } 56312531Sandreas.sandberg@arm.com} 56412531Sandreas.sandberg@arm.com 56512531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 56612531Sandreas.sandberg@arm.comArmSemihosting::callHeapInfo(ThreadContext *tc, bool aarch64, 56712531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 56812531Sandreas.sandberg@arm.com{ 56912531Sandreas.sandberg@arm.com const PhysicalMemory &phys = tc->getSystemPtr()->getPhysMem(); 57012531Sandreas.sandberg@arm.com const AddrRangeList memories = phys.getConfAddrRanges(); 57112531Sandreas.sandberg@arm.com fatal_if(memories.size() < 1, "No memories reported from System"); 57212531Sandreas.sandberg@arm.com warn_if(memories.size() > 1, "Multiple physical memory ranges available. " 57312531Sandreas.sandberg@arm.com "Using first range heap/stack."); 57412531Sandreas.sandberg@arm.com const AddrRange memory = *memories.begin(); 57512531Sandreas.sandberg@arm.com const Addr mem_start = memory.start() + memReserve; 57612531Sandreas.sandberg@arm.com Addr mem_end = memory.end(); 57712531Sandreas.sandberg@arm.com 57812531Sandreas.sandberg@arm.com // Make sure that 32-bit guests can access their memory. 57912531Sandreas.sandberg@arm.com if (!aarch64) { 58012531Sandreas.sandberg@arm.com const Addr phys_max = (1ULL << 32) - 1; 58112531Sandreas.sandberg@arm.com panic_if(mem_start > phys_max, 58212531Sandreas.sandberg@arm.com "Physical memory out of range for a 32-bit guest."); 58312531Sandreas.sandberg@arm.com if (mem_end > phys_max) { 58412531Sandreas.sandberg@arm.com warn("Some physical memory out of range for a 32-bit guest."); 58512531Sandreas.sandberg@arm.com mem_end = phys_max; 58612531Sandreas.sandberg@arm.com } 58712531Sandreas.sandberg@arm.com } 58812531Sandreas.sandberg@arm.com 58912531Sandreas.sandberg@arm.com fatal_if(mem_start + stackSize >= mem_end, 59012531Sandreas.sandberg@arm.com "Physical memory too small to fit desired stack and a heap."); 59112531Sandreas.sandberg@arm.com 59212531Sandreas.sandberg@arm.com const Addr heap_base = mem_start; 59312531Sandreas.sandberg@arm.com const Addr heap_limit = mem_end - stackSize + 1; 59412531Sandreas.sandberg@arm.com const Addr stack_base = (mem_end + 1) & ~0x7ULL; // 8 byte stack alignment 59512531Sandreas.sandberg@arm.com const Addr stack_limit = heap_limit; 59612531Sandreas.sandberg@arm.com 59712531Sandreas.sandberg@arm.com 59812531Sandreas.sandberg@arm.com inform("Reporting heap/stack info to guest:\n" 59912531Sandreas.sandberg@arm.com "\tHeap base: 0x%x\n" 60012531Sandreas.sandberg@arm.com "\tHeap limit: 0x%x\n" 60112531Sandreas.sandberg@arm.com "\tStack base: 0x%x\n" 60212531Sandreas.sandberg@arm.com "\tStack limit: 0x%x\n", 60312531Sandreas.sandberg@arm.com heap_base, heap_limit, stack_base, stack_limit); 60412531Sandreas.sandberg@arm.com 60512531Sandreas.sandberg@arm.com Addr base = argv[1]; 60612533Sandreas.sandberg@arm.com PortProxy &proxy = physProxy(tc); 60712531Sandreas.sandberg@arm.com ByteOrder endian = ArmISA::byteOrder(tc); 60812531Sandreas.sandberg@arm.com if (aarch64) { 60913893Sgabeblack@google.com proxy.write<uint64_t>(base + 0 * 8, heap_base, endian); 61013893Sgabeblack@google.com proxy.write<uint64_t>(base + 1 * 8, heap_limit, endian); 61113893Sgabeblack@google.com proxy.write<uint64_t>(base + 2 * 8, stack_base, endian); 61213893Sgabeblack@google.com proxy.write<uint64_t>(base + 3 * 8, stack_limit, endian); 61312531Sandreas.sandberg@arm.com } else { 61413893Sgabeblack@google.com proxy.write<uint32_t>(base + 0 * 4, heap_base, endian); 61513893Sgabeblack@google.com proxy.write<uint32_t>(base + 1 * 4, heap_limit, endian); 61613893Sgabeblack@google.com proxy.write<uint32_t>(base + 2 * 4, stack_base, endian); 61713893Sgabeblack@google.com proxy.write<uint32_t>(base + 3 * 4, stack_limit, endian); 61812531Sandreas.sandberg@arm.com } 61912531Sandreas.sandberg@arm.com 62012531Sandreas.sandberg@arm.com return retOK(0); 62112531Sandreas.sandberg@arm.com} 62212531Sandreas.sandberg@arm.com 62312531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 62412531Sandreas.sandberg@arm.comArmSemihosting::callExit(ThreadContext *tc, bool aarch64, 62512531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 62612531Sandreas.sandberg@arm.com{ 62712531Sandreas.sandberg@arm.com if (aarch64) { 62812531Sandreas.sandberg@arm.com semiExit(argv[1], argv[2]); 62912531Sandreas.sandberg@arm.com } else { 63012531Sandreas.sandberg@arm.com semiExit(argv[0], 0); 63112531Sandreas.sandberg@arm.com } 63212531Sandreas.sandberg@arm.com 63312531Sandreas.sandberg@arm.com return retOK(0); 63412531Sandreas.sandberg@arm.com} 63512531Sandreas.sandberg@arm.com 63612531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 63712531Sandreas.sandberg@arm.comArmSemihosting::callExitExtended(ThreadContext *tc, bool aarch64, 63812531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 63912531Sandreas.sandberg@arm.com{ 64012531Sandreas.sandberg@arm.com semiExit(argv[1], argv[2]); 64112531Sandreas.sandberg@arm.com 64212531Sandreas.sandberg@arm.com return retOK(0); 64312531Sandreas.sandberg@arm.com} 64412531Sandreas.sandberg@arm.com 64512531Sandreas.sandberg@arm.comvoid 64612531Sandreas.sandberg@arm.comArmSemihosting::semiExit(uint64_t code, uint64_t subcode) 64712531Sandreas.sandberg@arm.com{ 64812531Sandreas.sandberg@arm.com auto it = exitCodes.find(code); 64912531Sandreas.sandberg@arm.com if (it != exitCodes.end()) { 65012531Sandreas.sandberg@arm.com exitSimLoop(it->second, subcode); 65112531Sandreas.sandberg@arm.com } else { 65212531Sandreas.sandberg@arm.com exitSimLoop(csprintf("semi:0x%x", code), subcode); 65312531Sandreas.sandberg@arm.com } 65412531Sandreas.sandberg@arm.com} 65512531Sandreas.sandberg@arm.com 65612531Sandreas.sandberg@arm.com 65712531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 65812531Sandreas.sandberg@arm.comArmSemihosting::callElapsed(ThreadContext *tc, bool aarch64, 65912531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 66012531Sandreas.sandberg@arm.com{ 66112533Sandreas.sandberg@arm.com PortProxy &proxy = physProxy(tc); 66212531Sandreas.sandberg@arm.com ByteOrder endian = ArmISA::byteOrder(tc); 66312531Sandreas.sandberg@arm.com const uint64_t tick = semiTick(curTick()); 66412531Sandreas.sandberg@arm.com 66512531Sandreas.sandberg@arm.com if (aarch64) { 66613893Sgabeblack@google.com proxy.write<uint64_t>(argv[0], tick, endian); 66712531Sandreas.sandberg@arm.com } else { 66813893Sgabeblack@google.com proxy.write<uint32_t>(argv[0] + 0 * 4, tick, endian); 66913893Sgabeblack@google.com proxy.write<uint32_t>(argv[0] + 1 * 4, tick >> 32, endian); 67012531Sandreas.sandberg@arm.com } 67112531Sandreas.sandberg@arm.com 67212531Sandreas.sandberg@arm.com return retOK(0); 67312531Sandreas.sandberg@arm.com} 67412531Sandreas.sandberg@arm.com 67512531Sandreas.sandberg@arm.com 67612531Sandreas.sandberg@arm.comArmSemihosting::RetErrno 67712531Sandreas.sandberg@arm.comArmSemihosting::callTickFreq(ThreadContext *tc, bool aarch64, 67812531Sandreas.sandberg@arm.com std::vector<uint64_t> &argv) 67912531Sandreas.sandberg@arm.com{ 68012531Sandreas.sandberg@arm.com return retOK(semiTick(SimClock::Frequency)); 68112531Sandreas.sandberg@arm.com} 68212531Sandreas.sandberg@arm.com 68312531Sandreas.sandberg@arm.comconst ArmSemihosting::SemiCall * 68412531Sandreas.sandberg@arm.comArmSemihosting::getCall(uint32_t op, bool aarch64) 68512531Sandreas.sandberg@arm.com{ 68612531Sandreas.sandberg@arm.com auto it = calls.find(op); 68712531Sandreas.sandberg@arm.com if (it == calls.end()) 68812531Sandreas.sandberg@arm.com return nullptr; 68912531Sandreas.sandberg@arm.com else { 69012531Sandreas.sandberg@arm.com return &it->second; 69112531Sandreas.sandberg@arm.com } 69212531Sandreas.sandberg@arm.com} 69312531Sandreas.sandberg@arm.com 69412698Sandreas.sandberg@arm.comFILE * 69512698Sandreas.sandberg@arm.comArmSemihosting::getSTDIO(const char *stream_name, 69612698Sandreas.sandberg@arm.com const std::string &name, const char *mode) 69712698Sandreas.sandberg@arm.com{ 69812698Sandreas.sandberg@arm.com auto it = stdioMap.find(name); 69912698Sandreas.sandberg@arm.com if (it == stdioMap.end()) { 70012698Sandreas.sandberg@arm.com FILE *f = fopen(name.c_str(), mode); 70112698Sandreas.sandberg@arm.com if (!f) { 70212698Sandreas.sandberg@arm.com fatal("Failed to open %s (%s): %s\n", 70312698Sandreas.sandberg@arm.com stream_name, name, strerror(errno)); 70412698Sandreas.sandberg@arm.com } 70512698Sandreas.sandberg@arm.com return f; 70612698Sandreas.sandberg@arm.com } else { 70712698Sandreas.sandberg@arm.com return it->second; 70812698Sandreas.sandberg@arm.com } 70912698Sandreas.sandberg@arm.com} 71012698Sandreas.sandberg@arm.com 71112531Sandreas.sandberg@arm.comstd::unique_ptr<ArmSemihosting::FileBase> 71212531Sandreas.sandberg@arm.comArmSemihosting::FileBase::create( 71312531Sandreas.sandberg@arm.com ArmSemihosting &parent, const std::string &fname, const char *mode) 71412531Sandreas.sandberg@arm.com{ 71512531Sandreas.sandberg@arm.com std::unique_ptr<FileBase> file; 71612531Sandreas.sandberg@arm.com if (fname == ":semihosting-features") { 71712531Sandreas.sandberg@arm.com file.reset(new FileFeatures(parent, fname.c_str(), mode)); 71812531Sandreas.sandberg@arm.com } else { 71912531Sandreas.sandberg@arm.com file.reset(new File(parent, fname.c_str(), mode)); 72012531Sandreas.sandberg@arm.com } 72112531Sandreas.sandberg@arm.com 72212531Sandreas.sandberg@arm.com return file; 72312531Sandreas.sandberg@arm.com} 72412531Sandreas.sandberg@arm.com 72512531Sandreas.sandberg@arm.comstd::unique_ptr<ArmSemihosting::FileBase> 72612531Sandreas.sandberg@arm.comArmSemihosting::FileBase::create(ArmSemihosting &parent, 72712531Sandreas.sandberg@arm.com CheckpointIn &cp, const std::string &sec) 72812531Sandreas.sandberg@arm.com{ 72912531Sandreas.sandberg@arm.com std::unique_ptr<FileBase> file; 73012531Sandreas.sandberg@arm.com ScopedCheckpointSection _sec(cp, sec); 73112531Sandreas.sandberg@arm.com 73212531Sandreas.sandberg@arm.com // Was the file open when the checkpoint was created? 73312531Sandreas.sandberg@arm.com if (!cp.sectionExists(Serializable::currentSection())) 73412531Sandreas.sandberg@arm.com return file; 73512531Sandreas.sandberg@arm.com 73612531Sandreas.sandberg@arm.com std::string fname, mode; 73712531Sandreas.sandberg@arm.com paramIn(cp, "name", fname); 73812531Sandreas.sandberg@arm.com paramIn(cp, "mode", mode); 73912531Sandreas.sandberg@arm.com file = create(parent, fname, mode.c_str()); 74012531Sandreas.sandberg@arm.com assert(file); 74112531Sandreas.sandberg@arm.com file->unserialize(cp); 74212531Sandreas.sandberg@arm.com 74312531Sandreas.sandberg@arm.com return file; 74412531Sandreas.sandberg@arm.com} 74512531Sandreas.sandberg@arm.com 74612531Sandreas.sandberg@arm.comvoid 74712531Sandreas.sandberg@arm.comArmSemihosting::FileBase::serialize(CheckpointOut &cp) const 74812531Sandreas.sandberg@arm.com{ 74912531Sandreas.sandberg@arm.com paramOut(cp, "name", _name); 75012531Sandreas.sandberg@arm.com SERIALIZE_SCALAR(mode); 75112531Sandreas.sandberg@arm.com} 75212531Sandreas.sandberg@arm.com 75312531Sandreas.sandberg@arm.comvoid 75412531Sandreas.sandberg@arm.comArmSemihosting::FileBase::unserialize(CheckpointIn &cp) 75512531Sandreas.sandberg@arm.com{ 75612531Sandreas.sandberg@arm.com /* Unserialization of name and mode happens in 75712531Sandreas.sandberg@arm.com * ArmSemihosting::FileBase::create() */ 75812531Sandreas.sandberg@arm.com} 75912531Sandreas.sandberg@arm.com 76012531Sandreas.sandberg@arm.comint64_t 76112531Sandreas.sandberg@arm.comArmSemihosting::FileBase::read(uint8_t *buffer, uint64_t size) 76212531Sandreas.sandberg@arm.com{ 76312531Sandreas.sandberg@arm.com return -EINVAL; 76412531Sandreas.sandberg@arm.com} 76512531Sandreas.sandberg@arm.com 76612531Sandreas.sandberg@arm.comint64_t 76712531Sandreas.sandberg@arm.comArmSemihosting::FileBase::write(const uint8_t *buffer, uint64_t size) 76812531Sandreas.sandberg@arm.com{ 76912531Sandreas.sandberg@arm.com return -EINVAL; 77012531Sandreas.sandberg@arm.com} 77112531Sandreas.sandberg@arm.com 77212531Sandreas.sandberg@arm.comint64_t 77312531Sandreas.sandberg@arm.comArmSemihosting::FileBase::seek(uint64_t pos) 77412531Sandreas.sandberg@arm.com{ 77512531Sandreas.sandberg@arm.com return -EINVAL; 77612531Sandreas.sandberg@arm.com} 77712531Sandreas.sandberg@arm.com 77812531Sandreas.sandberg@arm.comint64_t 77912531Sandreas.sandberg@arm.comArmSemihosting::FileBase::flen() 78012531Sandreas.sandberg@arm.com{ 78112531Sandreas.sandberg@arm.com return -EINVAL; 78212531Sandreas.sandberg@arm.com} 78312531Sandreas.sandberg@arm.com 78412531Sandreas.sandberg@arm.com 78512531Sandreas.sandberg@arm.comArmSemihosting::FileFeatures::FileFeatures( 78612531Sandreas.sandberg@arm.com ArmSemihosting &_parent, const char *_name, const char *_mode) 78712531Sandreas.sandberg@arm.com : FileBase(_parent, _name, _mode) 78812531Sandreas.sandberg@arm.com{ 78912531Sandreas.sandberg@arm.com} 79012531Sandreas.sandberg@arm.com 79112531Sandreas.sandberg@arm.comint64_t 79212531Sandreas.sandberg@arm.comArmSemihosting::FileFeatures::read(uint8_t *buffer, uint64_t size) 79312531Sandreas.sandberg@arm.com{ 79412531Sandreas.sandberg@arm.com int64_t len = 0; 79512531Sandreas.sandberg@arm.com 79612531Sandreas.sandberg@arm.com for (; pos < size && pos < ArmSemihosting::features.size(); pos++) 79712531Sandreas.sandberg@arm.com buffer[len++] = ArmSemihosting::features[pos]; 79812531Sandreas.sandberg@arm.com 79912531Sandreas.sandberg@arm.com return len; 80012531Sandreas.sandberg@arm.com} 80112531Sandreas.sandberg@arm.com 80212531Sandreas.sandberg@arm.comint64_t 80312531Sandreas.sandberg@arm.comArmSemihosting::FileFeatures::seek(uint64_t _pos) 80412531Sandreas.sandberg@arm.com{ 80512531Sandreas.sandberg@arm.com if (_pos < ArmSemihosting::features.size()) { 80612531Sandreas.sandberg@arm.com pos = _pos; 80712531Sandreas.sandberg@arm.com return 0; 80812531Sandreas.sandberg@arm.com } else { 80912531Sandreas.sandberg@arm.com return -ENXIO; 81012531Sandreas.sandberg@arm.com } 81112531Sandreas.sandberg@arm.com} 81212531Sandreas.sandberg@arm.com 81312531Sandreas.sandberg@arm.comvoid 81412531Sandreas.sandberg@arm.comArmSemihosting::FileFeatures::serialize(CheckpointOut &cp) const 81512531Sandreas.sandberg@arm.com{ 81612531Sandreas.sandberg@arm.com FileBase::serialize(cp); 81712531Sandreas.sandberg@arm.com SERIALIZE_SCALAR(pos); 81812531Sandreas.sandberg@arm.com} 81912531Sandreas.sandberg@arm.com 82012531Sandreas.sandberg@arm.comvoid 82112531Sandreas.sandberg@arm.comArmSemihosting::FileFeatures::unserialize(CheckpointIn &cp) 82212531Sandreas.sandberg@arm.com{ 82312531Sandreas.sandberg@arm.com FileBase::unserialize(cp); 82412531Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(pos); 82512531Sandreas.sandberg@arm.com} 82612531Sandreas.sandberg@arm.com 82712531Sandreas.sandberg@arm.com 82812531Sandreas.sandberg@arm.com 82912531Sandreas.sandberg@arm.comArmSemihosting::File::File(ArmSemihosting &_parent, 83012531Sandreas.sandberg@arm.com const char *_name, const char *_perms) 83112531Sandreas.sandberg@arm.com : FileBase(_parent, _name, _perms), 83212531Sandreas.sandberg@arm.com file(nullptr) 83312531Sandreas.sandberg@arm.com{ 83412531Sandreas.sandberg@arm.com} 83512531Sandreas.sandberg@arm.com 83612531Sandreas.sandberg@arm.comArmSemihosting::File::~File() 83712531Sandreas.sandberg@arm.com{ 83812531Sandreas.sandberg@arm.com if (file) 83912531Sandreas.sandberg@arm.com close(); 84012531Sandreas.sandberg@arm.com} 84112531Sandreas.sandberg@arm.com 84212531Sandreas.sandberg@arm.comint64_t 84312531Sandreas.sandberg@arm.comArmSemihosting::File::openImpl(bool in_cpt) 84412531Sandreas.sandberg@arm.com{ 84512531Sandreas.sandberg@arm.com panic_if(file, "Trying to open an already open file.\n"); 84612531Sandreas.sandberg@arm.com 84712531Sandreas.sandberg@arm.com if (_name == ":tt") { 84812531Sandreas.sandberg@arm.com if (mode[0] == 'r') { 84912698Sandreas.sandberg@arm.com file = parent.stdin; 85012531Sandreas.sandberg@arm.com } else if (mode[0] == 'w') { 85112698Sandreas.sandberg@arm.com file = parent.stdout; 85212531Sandreas.sandberg@arm.com } else if (mode[0] == 'a') { 85312698Sandreas.sandberg@arm.com file = parent.stderr; 85412531Sandreas.sandberg@arm.com } else { 85512531Sandreas.sandberg@arm.com warn("Unknown file mode for the ':tt' special file"); 85612531Sandreas.sandberg@arm.com return -EINVAL; 85712531Sandreas.sandberg@arm.com } 85812531Sandreas.sandberg@arm.com } else { 85912531Sandreas.sandberg@arm.com std::string real_mode(this->mode); 86012531Sandreas.sandberg@arm.com // Avoid truncating the file if we are restoring from a 86112531Sandreas.sandberg@arm.com // checkpoint. 86212531Sandreas.sandberg@arm.com if (in_cpt && real_mode[0] == 'w') 86312531Sandreas.sandberg@arm.com real_mode[0] = 'a'; 86412531Sandreas.sandberg@arm.com 86512531Sandreas.sandberg@arm.com file = fopen(_name.c_str(), real_mode.c_str()); 86612531Sandreas.sandberg@arm.com } 86712531Sandreas.sandberg@arm.com 86812531Sandreas.sandberg@arm.com return file ? 0 : -errno; 86912531Sandreas.sandberg@arm.com} 87012531Sandreas.sandberg@arm.com 87112531Sandreas.sandberg@arm.comint64_t 87212531Sandreas.sandberg@arm.comArmSemihosting::File::close() 87312531Sandreas.sandberg@arm.com{ 87412531Sandreas.sandberg@arm.com panic_if(!file, "Trying to close an already closed file.\n"); 87512531Sandreas.sandberg@arm.com 87612531Sandreas.sandberg@arm.com if (needClose()) { 87712531Sandreas.sandberg@arm.com fclose(file); 87812531Sandreas.sandberg@arm.com } 87912531Sandreas.sandberg@arm.com file = nullptr; 88012531Sandreas.sandberg@arm.com 88112531Sandreas.sandberg@arm.com return 0; 88212531Sandreas.sandberg@arm.com} 88312531Sandreas.sandberg@arm.com 88412531Sandreas.sandberg@arm.combool 88512531Sandreas.sandberg@arm.comArmSemihosting::File::isTTY() const 88612531Sandreas.sandberg@arm.com{ 88712698Sandreas.sandberg@arm.com return file == parent.stdout || 88812698Sandreas.sandberg@arm.com file == parent.stderr || 88912698Sandreas.sandberg@arm.com file == parent.stdin; 89012531Sandreas.sandberg@arm.com} 89112531Sandreas.sandberg@arm.com 89212531Sandreas.sandberg@arm.comint64_t 89312531Sandreas.sandberg@arm.comArmSemihosting::File::read(uint8_t *buffer, uint64_t size) 89412531Sandreas.sandberg@arm.com{ 89512531Sandreas.sandberg@arm.com panic_if(!file, "Trying to read from a closed file"); 89612531Sandreas.sandberg@arm.com 89712531Sandreas.sandberg@arm.com size_t ret = fread(buffer, 1, size, file); 89812531Sandreas.sandberg@arm.com if (ret == 0) { 89912531Sandreas.sandberg@arm.com // Error or EOF. Assume errors are due to invalid file 90012531Sandreas.sandberg@arm.com // operations (e.g., reading a write-only stream). 90112531Sandreas.sandberg@arm.com return ferror(file) ? -EINVAL : 0; 90212531Sandreas.sandberg@arm.com } else { 90312531Sandreas.sandberg@arm.com return ret; 90412531Sandreas.sandberg@arm.com } 90512531Sandreas.sandberg@arm.com} 90612531Sandreas.sandberg@arm.com 90712531Sandreas.sandberg@arm.comint64_t 90812531Sandreas.sandberg@arm.comArmSemihosting::File::write(const uint8_t *buffer, uint64_t size) 90912531Sandreas.sandberg@arm.com{ 91012531Sandreas.sandberg@arm.com panic_if(!file, "Trying to write to a closed file"); 91112531Sandreas.sandberg@arm.com 91212531Sandreas.sandberg@arm.com 91312531Sandreas.sandberg@arm.com size_t ret = fwrite(buffer, 1, size, file); 91412531Sandreas.sandberg@arm.com if (ret == 0) { 91512531Sandreas.sandberg@arm.com // Assume errors are due to invalid file operations (e.g., 91612531Sandreas.sandberg@arm.com // writing a read-only stream). 91712531Sandreas.sandberg@arm.com return -EINVAL; 91812531Sandreas.sandberg@arm.com } else { 91912531Sandreas.sandberg@arm.com return ret; 92012531Sandreas.sandberg@arm.com } 92112531Sandreas.sandberg@arm.com} 92212531Sandreas.sandberg@arm.com 92312531Sandreas.sandberg@arm.comint64_t 92412531Sandreas.sandberg@arm.comArmSemihosting::File::seek(uint64_t _pos) 92512531Sandreas.sandberg@arm.com{ 92612531Sandreas.sandberg@arm.com panic_if(!file, "Trying to seek in a closed file"); 92712531Sandreas.sandberg@arm.com 92812531Sandreas.sandberg@arm.com errno = 0; 92912531Sandreas.sandberg@arm.com if (fseek(file, _pos, SEEK_SET) == 0) 93012531Sandreas.sandberg@arm.com return 0; 93112531Sandreas.sandberg@arm.com else 93212531Sandreas.sandberg@arm.com return -errno; 93312531Sandreas.sandberg@arm.com} 93412531Sandreas.sandberg@arm.com 93512531Sandreas.sandberg@arm.comint64_t 93612531Sandreas.sandberg@arm.comArmSemihosting::File::flen() 93712531Sandreas.sandberg@arm.com{ 93812531Sandreas.sandberg@arm.com errno = 0; 93912531Sandreas.sandberg@arm.com long pos = ftell(file); 94012531Sandreas.sandberg@arm.com if (pos < 0) 94112531Sandreas.sandberg@arm.com return -errno; 94212531Sandreas.sandberg@arm.com 94312531Sandreas.sandberg@arm.com if (fseek(file, 0, SEEK_END) != 0) 94412531Sandreas.sandberg@arm.com return -errno; 94512531Sandreas.sandberg@arm.com 94612531Sandreas.sandberg@arm.com long len = ftell(file); 94712531Sandreas.sandberg@arm.com if (len < 0) 94812531Sandreas.sandberg@arm.com return -errno; 94912531Sandreas.sandberg@arm.com 95012531Sandreas.sandberg@arm.com if (fseek(file, pos, SEEK_SET) != 0) 95112531Sandreas.sandberg@arm.com return -errno; 95212531Sandreas.sandberg@arm.com 95312531Sandreas.sandberg@arm.com return len; 95412531Sandreas.sandberg@arm.com} 95512531Sandreas.sandberg@arm.com 95612531Sandreas.sandberg@arm.com 95712531Sandreas.sandberg@arm.comvoid 95812531Sandreas.sandberg@arm.comArmSemihosting::File::serialize(CheckpointOut &cp) const 95912531Sandreas.sandberg@arm.com{ 96012531Sandreas.sandberg@arm.com FileBase::serialize(cp); 96112531Sandreas.sandberg@arm.com 96212531Sandreas.sandberg@arm.com if (!isTTY()) { 96312531Sandreas.sandberg@arm.com long pos = file ? ftell(file) : 0; 96412531Sandreas.sandberg@arm.com panic_if(pos < 0, "Failed to get file position."); 96512531Sandreas.sandberg@arm.com SERIALIZE_SCALAR(pos); 96612531Sandreas.sandberg@arm.com } 96712531Sandreas.sandberg@arm.com} 96812531Sandreas.sandberg@arm.com 96912531Sandreas.sandberg@arm.comvoid 97012531Sandreas.sandberg@arm.comArmSemihosting::File::unserialize(CheckpointIn &cp) 97112531Sandreas.sandberg@arm.com{ 97212531Sandreas.sandberg@arm.com FileBase::unserialize(cp); 97312531Sandreas.sandberg@arm.com 97412531Sandreas.sandberg@arm.com if (openImpl(true) < 0) { 97512531Sandreas.sandberg@arm.com fatal("Failed to open file: %s", _name); 97612531Sandreas.sandberg@arm.com } 97712531Sandreas.sandberg@arm.com 97812531Sandreas.sandberg@arm.com if (!isTTY()) { 97912531Sandreas.sandberg@arm.com long pos = 0; 98012531Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(pos); 98112531Sandreas.sandberg@arm.com if (fseek(file, pos, SEEK_SET) != 0) { 98212531Sandreas.sandberg@arm.com fatal("Failed seek to current position (%i) in '%s'", pos, _name); 98312531Sandreas.sandberg@arm.com } 98412531Sandreas.sandberg@arm.com } 98512531Sandreas.sandberg@arm.com} 98612531Sandreas.sandberg@arm.com 98712531Sandreas.sandberg@arm.com 98812531Sandreas.sandberg@arm.comArmSemihosting * 98912531Sandreas.sandberg@arm.comArmSemihostingParams::create() 99012531Sandreas.sandberg@arm.com{ 99112531Sandreas.sandberg@arm.com return new ArmSemihosting(this); 99212531Sandreas.sandberg@arm.com} 993