0767ade61b
With the simplistic syscall emulation fork algorithm that we currently have of running one thread per call, those calls simply cannot be reasonably implemented. However, content can often still work without them. Change-Id: Iac88dfd055564c47b7a7b6898b7582cf4087f708 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/28591 Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
945 lines
35 KiB
C++
945 lines
35 KiB
C++
/*
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* Copyright (c) 2010-2013, 2015, 2020 ARM Limited
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* All rights reserved
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*
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* The license below extends only to copyright in the software and shall
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* not be construed as granting a license to any other intellectual
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* property including but not limited to intellectual property relating
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* to a hardware implementation of the functionality of the software
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* licensed hereunder. You may use the software subject to the license
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* terms below provided that you ensure that this notice is replicated
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* unmodified and in its entirety in all distributions of the software,
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* modified or unmodified, in source code or in binary form.
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*
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* Copyright (c) 2003-2005 The Regents of The University of Michigan
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* Copyright (c) 2007-2008 The Florida State University
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "arch/arm/linux/process.hh"
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#include <sys/syscall.h>
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#include "arch/arm/isa_traits.hh"
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#include "arch/arm/linux/linux.hh"
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#include "base/loader/object_file.hh"
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#include "base/trace.hh"
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#include "cpu/thread_context.hh"
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#include "kern/linux/linux.hh"
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#include "sim/process.hh"
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#include "sim/syscall_desc.hh"
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#include "sim/syscall_emul.hh"
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#include "sim/system.hh"
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using namespace std;
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using namespace ArmISA;
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namespace
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{
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class ArmLinuxObjectFileLoader : public Process::Loader
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{
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public:
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Process *
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load(ProcessParams *params, ::Loader::ObjectFile *obj_file) override
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{
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auto arch = obj_file->getArch();
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auto opsys = obj_file->getOpSys();
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if (arch != ::Loader::Arm && arch != ::Loader::Thumb &&
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arch != ::Loader::Arm64) {
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return nullptr;
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}
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if (opsys == ::Loader::UnknownOpSys) {
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warn("Unknown operating system; assuming Linux.");
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opsys = ::Loader::Linux;
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}
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if (opsys == ::Loader::LinuxArmOABI) {
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fatal("gem5 does not support ARM OABI binaries. Please recompile "
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"with an EABI compiler.");
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}
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if (opsys != ::Loader::Linux)
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return nullptr;
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if (arch == ::Loader::Arm64)
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return new ArmLinuxProcess64(params, obj_file, arch);
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else
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return new ArmLinuxProcess32(params, obj_file, arch);
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}
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};
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ArmLinuxObjectFileLoader loader;
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} // anonymous namespace
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/// Target uname() handler.
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static SyscallReturn
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unameFunc32(SyscallDesc *desc, ThreadContext *tc, Addr utsname)
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{
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auto process = tc->getProcessPtr();
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TypedBufferArg<Linux::utsname> name(utsname);
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strcpy(name->sysname, "Linux");
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strcpy(name->nodename, "m5.eecs.umich.edu");
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strcpy(name->release, process->release.c_str());
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strcpy(name->version, "#1 SMP Sat Dec 1 00:00:00 GMT 2012");
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strcpy(name->machine, "armv7l");
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name.copyOut(tc->getVirtProxy());
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return 0;
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}
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/// Target uname() handler.
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static SyscallReturn
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unameFunc64(SyscallDesc *desc, ThreadContext *tc, Addr utsname)
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{
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auto process = tc->getProcessPtr();
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TypedBufferArg<Linux::utsname> name(utsname);
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strcpy(name->sysname, "Linux");
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strcpy(name->nodename, "gem5");
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strcpy(name->release, process->release.c_str());
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strcpy(name->version, "#1 SMP Sat Dec 1 00:00:00 GMT 2012");
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strcpy(name->machine, "armv8l");
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name.copyOut(tc->getVirtProxy());
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return 0;
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}
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/// Target set_tls() handler.
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static SyscallReturn
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setTLSFunc32(SyscallDesc *desc, ThreadContext *tc, uint32_t tlsPtr)
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{
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tc->getVirtProxy().writeBlob(ArmLinuxProcess32::commPage + 0x0ff0,
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&tlsPtr, sizeof(tlsPtr));
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tc->setMiscReg(MISCREG_TPIDRURO, tlsPtr);
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return 0;
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}
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static SyscallReturn
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setTLSFunc64(SyscallDesc *desc, ThreadContext *tc, uint32_t tlsPtr)
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{
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tc->setMiscReg(MISCREG_TPIDRRO_EL0, tlsPtr);
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return 0;
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}
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class SyscallTable32 :
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public SyscallDescTable<ArmLinuxProcess32::SyscallABI>
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{
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public:
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SyscallTable32(int base) :
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SyscallDescTable<ArmLinuxProcess32::SyscallABI>({
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{ base + 0, "syscall" },
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{ base + 1, "exit", exitFunc },
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{ base + 2, "fork" },
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{ base + 3, "read", readFunc<ArmLinux32> },
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{ base + 4, "write", writeFunc<ArmLinux32> },
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{ base + 5, "open", openFunc<ArmLinux32> },
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{ base + 6, "close", closeFunc },
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{ base + 8, "creat" },
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{ base + 9, "link" },
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{ base + 10, "unlink", unlinkFunc },
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{ base + 11, "execve", execveFunc<ArmLinux32> },
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{ base + 12, "chdir" },
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{ base + 13, "time", timeFunc<ArmLinux32> },
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{ base + 14, "mknod" },
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{ base + 15, "chmod", chmodFunc<ArmLinux32> },
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{ base + 16, "lchown", chownFunc },
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{ base + 19, "lseek", lseekFunc },
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{ base + 20, "getpid", getpidFunc },
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{ base + 21, "mount" },
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{ base + 22, "umount" },
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{ base + 23, "setuid", ignoreFunc },
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{ base + 24, "getuid", getuidFunc },
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{ base + 25, "stime" },
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{ base + 26, "ptrace" },
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{ base + 27, "alarm" },
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{ base + 29, "pause" },
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{ base + 30, "utime" },
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{ base + 33, "access", accessFunc },
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{ base + 34, "nice" },
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{ base + 36, "sync" },
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{ base + 37, "kill", ignoreFunc },
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{ base + 38, "rename", renameFunc },
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{ base + 39, "mkdir", mkdirFunc },
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{ base + 40, "rmdir" },
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{ base + 41, "dup", dupFunc },
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{ base + 42, "pipe", pipePseudoFunc },
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{ base + 43, "times", timesFunc<ArmLinux32> },
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{ base + 45, "brk", brkFunc },
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{ base + 46, "setgid" },
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{ base + 47, "getgid", getgidFunc },
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{ base + 49, "geteuid", geteuidFunc },
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{ base + 50, "getegid", getegidFunc },
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{ base + 51, "acct" },
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{ base + 52, "umount2" },
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{ base + 54, "ioctl", ioctlFunc<ArmLinux32> },
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{ base + 55, "fcntl", fcntlFunc },
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{ base + 57, "setpgid" },
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{ base + 60, "umask", umaskFunc },
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{ base + 61, "chroot" },
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{ base + 62, "ustat" },
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{ base + 63, "dup2" },
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{ base + 64, "getppid", getppidFunc },
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{ base + 65, "getpgrp" },
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{ base + 66, "setsid" },
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{ base + 67, "sigaction" },
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{ base + 70, "setreuid" },
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{ base + 71, "setregid" },
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{ base + 72, "sigsuspend" },
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{ base + 73, "sigpending" },
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{ base + 74, "sethostname", ignoreFunc },
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{ base + 75, "setrlimit", ignoreFunc },
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{ base + 76, "getrlimit", getrlimitFunc<ArmLinux32> },
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{ base + 77, "getrusage", getrusageFunc<ArmLinux32> },
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{ base + 78, "gettimeofday", gettimeofdayFunc<ArmLinux32> },
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{ base + 79, "settimeofday" },
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{ base + 80, "getgroups" },
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{ base + 81, "setgroups" },
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{ base + 82, "reserved#82" },
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{ base + 83, "symlink" },
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{ base + 85, "readlink", readlinkFunc },
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{ base + 86, "uselib" },
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{ base + 87, "swapon" },
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{ base + 88, "reboot" },
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{ base + 89, "readdir" },
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{ base + 90, "mmap", mmapFunc<ArmLinux32> },
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{ base + 91, "munmap", munmapFunc },
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{ base + 92, "truncate", truncateFunc },
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{ base + 93, "ftruncate", ftruncateFunc },
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{ base + 94, "fchmod" },
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{ base + 95, "fchown" },
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{ base + 96, "getpriority" },
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{ base + 97, "setpriority" },
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{ base + 99, "statfs" },
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{ base + 100, "fstatfs" },
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{ base + 102, "socketcall" },
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{ base + 103, "syslog" },
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{ base + 104, "setitimer" },
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{ base + 105, "getitimer" },
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{ base + 106, "stat", statFunc<ArmLinux32> },
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{ base + 107, "lstat" },
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{ base + 108, "fstat", fstatFunc<ArmLinux32> },
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{ base + 111, "vhangup" },
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{ base + 113, "syscall" },
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{ base + 114, "wait4" },
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{ base + 115, "swapoff" },
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{ base + 116, "sysinfo", sysinfoFunc<ArmLinux32> },
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{ base + 117, "ipc" },
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{ base + 118, "fsync" },
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{ base + 119, "sigreturn" },
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{ base + 120, "clone", cloneBackwardsFunc<ArmLinux32> },
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{ base + 121, "setdomainname" },
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{ base + 122, "uname", unameFunc32 },
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{ base + 124, "adjtimex" },
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{ base + 125, "mprotect", ignoreFunc },
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{ base + 126, "sigprocmask", ignoreWarnOnceFunc },
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{ base + 128, "init_module" },
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{ base + 129, "delete_module" },
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{ base + 131, "quotactl" },
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{ base + 132, "getpgid" },
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{ base + 133, "fchdir" },
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{ base + 134, "bdflush" },
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{ base + 135, "sysfs" },
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{ base + 136, "personality" },
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{ base + 137, "reserved#138" },
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{ base + 138, "setfsuid" },
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{ base + 139, "setfsgid" },
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{ base + 140, "llseek", _llseekFunc },
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#if defined(SYS_getdents)
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{ base + 141, "getdents", getdentsFunc },
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#else
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{ base + 141, "getdents" },
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#endif
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{ base + 142, "newselect" },
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{ base + 143, "flock" },
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{ base + 144, "msync" },
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{ base + 145, "readv" },
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{ base + 146, "writev", writevFunc<ArmLinux32> },
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{ base + 147, "getsid" },
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{ base + 148, "fdatasync" },
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{ base + 149, "sysctl" },
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{ base + 150, "mlock" },
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{ base + 151, "munlock" },
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{ base + 152, "mlockall" },
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{ base + 153, "munlockall" },
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{ base + 154, "sched_setparam", ignoreWarnOnceFunc },
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{ base + 155, "sched_getparam", ignoreWarnOnceFunc },
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{ base + 156, "sched_setscheduler", ignoreWarnOnceFunc },
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{ base + 157, "sched_getscheduler", ignoreWarnOnceFunc },
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{ base + 158, "sched_yield", ignoreWarnOnceFunc },
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{ base + 159, "sched_get_priority_max", ignoreWarnOnceFunc },
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{ base + 160, "sched_get_priority_min", ignoreWarnOnceFunc },
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{ base + 161, "sched_rr_get_interval", ignoreWarnOnceFunc },
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{ base + 162, "nanosleep", ignoreWarnOnceFunc },
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{ base + 163, "mremap", mremapFunc<ArmLinux32> }, // ARM-specific
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{ base + 164, "setresuid" },
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{ base + 165, "getresuid" },
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{ base + 168, "poll" },
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{ base + 169, "nfsservctl" },
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{ base + 170, "setresgid" },
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{ base + 171, "getresgid" },
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{ base + 172, "prctl" },
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{ base + 173, "rt_sigreturn" },
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{ base + 174, "rt_sigaction", ignoreWarnOnceFunc },
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{ base + 175, "rt_sigprocmask", ignoreWarnOnceFunc },
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{ base + 176, "rt_sigpending" },
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{ base + 177, "rt_sigtimedwait" },
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{ base + 178, "rt_sigqueueinfo", ignoreFunc },
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{ base + 179, "rt_sigsuspend" },
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{ base + 180, "pread64" },
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{ base + 181, "pwrite64" },
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{ base + 182, "chown" },
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{ base + 183, "getcwd", getcwdFunc },
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{ base + 184, "capget" },
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{ base + 185, "capset" },
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{ base + 186, "sigaltstack" },
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{ base + 187, "sendfile" },
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{ base + 190, "vfork" },
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{ base + 191, "getrlimit", getrlimitFunc<ArmLinux32> },
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{ base + 192, "mmap2", mmapFunc<ArmLinux32> },
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{ base + 193, "truncate64" },
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{ base + 194, "ftruncate64", ftruncate64Func },
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{ base + 195, "stat64", stat64Func<ArmLinux32> },
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{ base + 196, "lstat64", lstat64Func<ArmLinux32> },
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{ base + 197, "fstat64", fstat64Func<ArmLinux32> },
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{ base + 198, "lchown" },
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{ base + 199, "getuid", getuidFunc },
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{ base + 200, "getgid", getgidFunc },
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{ base + 201, "geteuid", geteuidFunc },
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{ base + 202, "getegid", getegidFunc },
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{ base + 203, "setreuid" },
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{ base + 204, "setregid" },
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{ base + 205, "getgroups" },
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{ base + 206, "setgroups" },
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{ base + 207, "fchown" },
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{ base + 208, "setresuid" },
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{ base + 209, "getresuid" },
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{ base + 210, "setresgid" },
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{ base + 211, "getresgid" },
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{ base + 212, "chown" },
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{ base + 213, "setuid" },
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{ base + 214, "setgid" },
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{ base + 215, "setfsuid" },
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{ base + 216, "setfsgid" },
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#if defined(SYS_getdents64)
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{ base + 217, "getdents64", getdents64Func },
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#else
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{ base + 217, "getdents64" },
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#endif
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{ base + 218, "pivot_root" },
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{ base + 219, "mincore" },
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{ base + 220, "madvise", ignoreFunc },
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{ base + 221, "fcntl64", fcntl64Func },
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{ base + 224, "gettid", gettidFunc },
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{ base + 225, "readahead" },
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{ base + 226, "setxattr" },
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{ base + 227, "lsetxattr" },
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{ base + 228, "fsetxattr" },
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{ base + 229, "getxattr" },
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{ base + 230, "lgetxattr" },
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{ base + 231, "fgetxattr" },
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{ base + 232, "listxattr" },
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{ base + 233, "llistxattr" },
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{ base + 234, "flistxattr" },
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{ base + 235, "removexattr" },
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{ base + 236, "lremovexattr" },
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{ base + 237, "fremovexattr" },
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{ base + 238, "tkill" },
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{ base + 239, "sendfile64" },
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{ base + 240, "futex", futexFunc<ArmLinux32> },
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{ base + 241, "sched_setaffinity", ignoreWarnOnceFunc },
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{ base + 242, "sched_getaffinity", ignoreFunc },
|
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{ base + 243, "io_setup" },
|
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{ base + 244, "io_destroy" },
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{ base + 245, "io_getevents" },
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{ base + 246, "io_submit" },
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{ base + 247, "io_cancel" },
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{ base + 248, "exit_group", exitGroupFunc },
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{ base + 249, "lookup_dcookie" },
|
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{ base + 250, "epoll_create" },
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{ base + 251, "epoll_ctl" },
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{ base + 252, "epoll_wait" },
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|
{ base + 253, "remap_file_pages" },
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|
{ base + 256, "set_tid_address", setTidAddressFunc },
|
|
{ base + 257, "timer_create" },
|
|
{ base + 258, "timer_settime" },
|
|
{ base + 259, "timer_gettime" },
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{ base + 260, "timer_getoverrun" },
|
|
{ base + 261, "timer_delete" },
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|
{ base + 262, "clock_settime" },
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|
{ base + 263, "clock_gettime", clock_gettimeFunc<ArmLinux32> },
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|
{ base + 264, "clock_getres", clock_getresFunc<ArmLinux32> },
|
|
{ base + 265, "clock_nanosleep" },
|
|
{ base + 266, "statfs64" },
|
|
{ base + 267, "fstatfs64" },
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|
{ base + 268, "tgkill", tgkillFunc<ArmLinux32> },
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|
{ base + 269, "utimes" },
|
|
{ base + 270, "arm_fadvise64_64" },
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|
{ base + 271, "pciconfig_iobase" },
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|
{ base + 272, "pciconfig_read" },
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|
{ base + 273, "pciconfig_write" },
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|
{ base + 274, "mq_open" },
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|
{ base + 275, "mq_unlink" },
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|
{ base + 276, "mq_timedsend" },
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|
{ base + 277, "mq_timedreceive" },
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|
{ base + 278, "mq_notify" },
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|
{ base + 279, "mq_getsetattr" },
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|
{ base + 280, "waitid" },
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|
{ base + 281, "socket" },
|
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{ base + 282, "bind" },
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|
{ base + 283, "connect" },
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|
{ base + 284, "listen" },
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|
{ base + 285, "accept" },
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|
{ base + 286, "getsockname" },
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|
{ base + 287, "getpeername" },
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|
{ base + 288, "socketpair" },
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{ base + 289, "send" },
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|
{ base + 290, "sendto" },
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|
{ base + 291, "recv" },
|
|
{ base + 292, "recvfrom" },
|
|
{ base + 293, "shutdown" },
|
|
{ base + 294, "setsockopt" },
|
|
{ base + 295, "getsockopt" },
|
|
{ base + 296, "sendmsg" },
|
|
{ base + 297, "rcvmsg" },
|
|
{ base + 298, "semop" },
|
|
{ base + 299, "semget" },
|
|
{ base + 300, "semctl" },
|
|
{ base + 301, "msgsend" },
|
|
{ base + 302, "msgrcv" },
|
|
{ base + 303, "msgget" },
|
|
{ base + 304, "msgctl" },
|
|
{ base + 305, "shmat" },
|
|
{ base + 306, "shmdt" },
|
|
{ base + 307, "shmget" },
|
|
{ base + 308, "shmctl" },
|
|
{ base + 309, "add_key" },
|
|
{ base + 310, "request_key" },
|
|
{ base + 311, "keyctl" },
|
|
{ base + 312, "semtimedop" },
|
|
{ base + 314, "ioprio_set" },
|
|
{ base + 315, "ioprio_get" },
|
|
{ base + 316, "inotify_init" },
|
|
{ base + 317, "inotify_add_watch" },
|
|
{ base + 318, "inotify_rm_watch" },
|
|
{ base + 319, "mbind" },
|
|
{ base + 320, "get_mempolicy" },
|
|
{ base + 321, "set_mempolicy" },
|
|
{ base + 322, "openat", openatFunc<ArmLinux32> },
|
|
{ base + 323, "mkdirat" },
|
|
{ base + 324, "mknodat" },
|
|
{ base + 325, "fchownat" },
|
|
{ base + 326, "futimesat" },
|
|
{ base + 327, "fstatat64" },
|
|
{ base + 328, "unlinkat" },
|
|
{ base + 329, "renameat" },
|
|
{ base + 330, "linkat" },
|
|
{ base + 331, "symlinkat" },
|
|
{ base + 332, "readlinkat" },
|
|
{ base + 333, "fchmodat" },
|
|
{ base + 334, "faccessat" },
|
|
{ base + 335, "pselect6" },
|
|
{ base + 336, "ppoll" },
|
|
{ base + 337, "unshare" },
|
|
{ base + 338, "set_robust_list", ignoreFunc },
|
|
{ base + 339, "get_robust_list" },
|
|
{ base + 340, "splice" },
|
|
{ base + 341, "arm_sync_file_range" },
|
|
{ base + 342, "tee" },
|
|
{ base + 343, "vmsplice" },
|
|
{ base + 344, "move_pages" },
|
|
{ base + 345, "getcpu", getcpuFunc },
|
|
{ base + 346, "epoll_pwait" },
|
|
{ base + 347, "sys_kexec_load" },
|
|
{ base + 348, "sys_utimensat" },
|
|
{ base + 349, "sys_signalfd" },
|
|
{ base + 350, "sys_timerfd_create" },
|
|
{ base + 351, "sys_eventfd" },
|
|
{ base + 352, "sys_fallocate" },
|
|
{ base + 353, "sys_timerfd_settime" },
|
|
{ base + 354, "sys_timerfd_gettime" },
|
|
{ base + 355, "sys_signalfd4" },
|
|
{ base + 356, "sys_eventfd2" },
|
|
{ base + 357, "sys_epoll_create1" },
|
|
{ base + 358, "sys_dup3" },
|
|
{ base + 359, "sys_pipe2" },
|
|
{ base + 360, "sys_inotify_init1" },
|
|
{ base + 361, "sys_preadv" },
|
|
{ base + 362, "sys_pwritev" },
|
|
{ base + 363, "sys_rt_tgsigqueueinfo" },
|
|
{ base + 364, "sys_perf_event_open" },
|
|
{ base + 365, "sys_recvmmsg" },
|
|
})
|
|
{}
|
|
};
|
|
|
|
static SyscallTable32 syscallDescs32Low(0), syscallDescs32High(0x900000);
|
|
|
|
class SyscallTable64 :
|
|
public SyscallDescTable<ArmLinuxProcess64::SyscallABI>
|
|
{
|
|
public:
|
|
SyscallTable64(int base) :
|
|
SyscallDescTable<ArmLinuxProcess64::SyscallABI>({
|
|
{ base + 0, "io_setup" },
|
|
{ base + 1, "io_destroy" },
|
|
{ base + 2, "io_submit" },
|
|
{ base + 3, "io_cancel" },
|
|
{ base + 4, "io_getevents" },
|
|
{ base + 5, "setxattr" },
|
|
{ base + 6, "lsetxattr" },
|
|
{ base + 7, "fsetxattr" },
|
|
{ base + 8, "getxattr" },
|
|
{ base + 9, "lgetxattr" },
|
|
{ base + 10, "fgetxattr" },
|
|
{ base + 11, "listxattr" },
|
|
{ base + 12, "llistxattr" },
|
|
{ base + 13, "flistxattr" },
|
|
{ base + 14, "removexattr" },
|
|
{ base + 15, "lremovexattr" },
|
|
{ base + 16, "fremovexattr" },
|
|
{ base + 17, "getcwd", getcwdFunc },
|
|
{ base + 18, "lookup_dcookie" },
|
|
{ base + 19, "eventfd2" },
|
|
{ base + 20, "epoll_create1" },
|
|
{ base + 21, "epoll_ctl" },
|
|
{ base + 22, "epoll_pwait" },
|
|
{ base + 23, "dup", dupFunc },
|
|
{ base + 24, "dup3" },
|
|
{ base + 25, "fcntl64", fcntl64Func },
|
|
{ base + 26, "inotify_init1" },
|
|
{ base + 27, "inotify_add_watch" },
|
|
{ base + 28, "inotify_rm_watch" },
|
|
{ base + 29, "ioctl", ioctlFunc<ArmLinux64> },
|
|
{ base + 30, "ioprio_set" },
|
|
{ base + 31, "ioprio_get" },
|
|
{ base + 32, "flock" },
|
|
{ base + 33, "mknodat" },
|
|
{ base + 34, "mkdirat" },
|
|
{ base + 35, "unlinkat", unlinkatFunc<ArmLinux64> },
|
|
{ base + 36, "symlinkat" },
|
|
{ base + 37, "linkat" },
|
|
{ base + 38, "renameat", renameatFunc<ArmLinux64> },
|
|
{ base + 39, "umount2" },
|
|
{ base + 40, "mount" },
|
|
{ base + 41, "pivot_root" },
|
|
{ base + 42, "nfsservctl" },
|
|
{ base + 43, "statfs64" },
|
|
{ base + 44, "fstatfs64" },
|
|
{ base + 45, "truncate64" },
|
|
{ base + 46, "ftruncate64", ftruncate64Func },
|
|
{ base + 47, "fallocate" },
|
|
{ base + 48, "faccessat", faccessatFunc<ArmLinux64> },
|
|
{ base + 49, "chdir" },
|
|
{ base + 50, "fchdir" },
|
|
{ base + 51, "chroot" },
|
|
{ base + 52, "fchmod" },
|
|
{ base + 53, "fchmodat" },
|
|
{ base + 54, "fchownat" },
|
|
{ base + 55, "fchown" },
|
|
{ base + 56, "openat", openatFunc<ArmLinux64> },
|
|
{ base + 57, "close", closeFunc },
|
|
{ base + 58, "vhangup" },
|
|
{ base + 59, "pipe2" },
|
|
{ base + 60, "quotactl" },
|
|
#if defined(SYS_getdents64)
|
|
{ base + 61, "getdents64", getdents64Func },
|
|
#else
|
|
{ base + 61, "getdents64" },
|
|
#endif
|
|
{ base + 62, "llseek", lseekFunc },
|
|
{ base + 63, "read", readFunc<ArmLinux64> },
|
|
{ base + 64, "write", writeFunc<ArmLinux64> },
|
|
{ base + 65, "readv" },
|
|
{ base + 66, "writev", writevFunc<ArmLinux64> },
|
|
{ base + 67, "pread64" },
|
|
{ base + 68, "pwrite64" },
|
|
{ base + 69, "preadv" },
|
|
{ base + 70, "pwritev" },
|
|
{ base + 71, "sendfile64" },
|
|
{ base + 72, "pselect6" },
|
|
{ base + 73, "ppoll" },
|
|
{ base + 74, "signalfd4" },
|
|
{ base + 75, "vmsplice" },
|
|
{ base + 76, "splice" },
|
|
{ base + 77, "tee" },
|
|
{ base + 78, "readlinkat", readlinkatFunc<ArmLinux64> },
|
|
{ base + 79, "fstatat64", fstatat64Func<ArmLinux64> },
|
|
{ base + 80, "fstat64", fstat64Func<ArmLinux64> },
|
|
{ base + 81, "sync" },
|
|
{ base + 82, "fsync" },
|
|
{ base + 83, "fdatasync" },
|
|
{ base + 84, "sync_file_range" },
|
|
{ base + 85, "timerfd_create" },
|
|
{ base + 86, "timerfd_settime" },
|
|
{ base + 87, "timerfd_gettime" },
|
|
{ base + 88, "utimensat" },
|
|
{ base + 89, "acct" },
|
|
{ base + 90, "capget" },
|
|
{ base + 91, "capset" },
|
|
{ base + 92, "personality" },
|
|
{ base + 93, "exit", exitFunc },
|
|
{ base + 94, "exit_group", exitGroupFunc },
|
|
{ base + 95, "waitid" },
|
|
{ base + 96, "set_tid_address", setTidAddressFunc },
|
|
{ base + 97, "unshare" },
|
|
{ base + 98, "futex", futexFunc<ArmLinux64> },
|
|
{ base + 99, "set_robust_list", ignoreFunc },
|
|
{ base + 100, "get_robust_list" },
|
|
{ base + 101, "nanosleep", ignoreWarnOnceFunc },
|
|
{ base + 102, "getitimer" },
|
|
{ base + 103, "setitimer" },
|
|
{ base + 104, "kexec_load" },
|
|
{ base + 105, "init_module" },
|
|
{ base + 106, "delete_module" },
|
|
{ base + 107, "timer_create" },
|
|
{ base + 108, "timer_gettime" },
|
|
{ base + 109, "timer_getoverrun" },
|
|
{ base + 110, "timer_settime" },
|
|
{ base + 111, "timer_delete" },
|
|
{ base + 112, "clock_settime" },
|
|
{ base + 113, "clock_gettime", clock_gettimeFunc<ArmLinux64> },
|
|
{ base + 114, "clock_getres" },
|
|
{ base + 115, "clock_nanosleep" },
|
|
{ base + 116, "syslog" },
|
|
{ base + 117, "ptrace" },
|
|
{ base + 118, "sched_setparam", ignoreWarnOnceFunc },
|
|
{ base + 119, "sched_setscheduler", ignoreWarnOnceFunc },
|
|
{ base + 120, "sched_getscheduler", ignoreWarnOnceFunc },
|
|
{ base + 121, "sched_getparam", ignoreWarnOnceFunc },
|
|
{ base + 122, "sched_setaffinity", ignoreWarnOnceFunc },
|
|
{ base + 123, "sched_getaffinity", ignoreFunc },
|
|
{ base + 124, "sched_yield", ignoreWarnOnceFunc },
|
|
{ base + 125, "sched_get_priority_max", ignoreWarnOnceFunc },
|
|
{ base + 126, "sched_get_priority_min", ignoreWarnOnceFunc },
|
|
{ base + 127, "sched_rr_get_interval", ignoreWarnOnceFunc },
|
|
{ base + 128, "restart_syscall" },
|
|
{ base + 129, "kill", ignoreFunc },
|
|
{ base + 130, "tkill" },
|
|
{ base + 131, "tgkill", tgkillFunc<ArmLinux64> },
|
|
{ base + 132, "sigaltstack" },
|
|
{ base + 133, "rt_sigsuspend" },
|
|
{ base + 134, "rt_sigaction", ignoreFunc },
|
|
{ base + 135, "rt_sigprocmask", ignoreWarnOnceFunc },
|
|
{ base + 136, "rt_sigpending" },
|
|
{ base + 137, "rt_sigtimedwait" },
|
|
{ base + 138, "rt_sigqueueinfo", ignoreFunc },
|
|
{ base + 139, "rt_sigreturn" },
|
|
{ base + 140, "setpriority" },
|
|
{ base + 141, "getpriority" },
|
|
{ base + 142, "reboot" },
|
|
{ base + 143, "setregid" },
|
|
{ base + 144, "setgid" },
|
|
{ base + 145, "setreuid" },
|
|
{ base + 146, "setuid" },
|
|
{ base + 147, "setresuid" },
|
|
{ base + 148, "getresuid" },
|
|
{ base + 149, "setresgid" },
|
|
{ base + 150, "getresgid" },
|
|
{ base + 151, "setfsuid" },
|
|
{ base + 152, "setfsgid" },
|
|
{ base + 153, "times", timesFunc<ArmLinux64> },
|
|
{ base + 154, "setpgid" },
|
|
{ base + 155, "getpgid" },
|
|
{ base + 156, "getsid" },
|
|
{ base + 157, "setsid" },
|
|
{ base + 158, "getgroups" },
|
|
{ base + 159, "setgroups" },
|
|
{ base + 160, "uname", unameFunc64 },
|
|
{ base + 161, "sethostname", ignoreFunc },
|
|
{ base + 162, "setdomainname" },
|
|
{ base + 163, "getrlimit", getrlimitFunc<ArmLinux64> },
|
|
{ base + 164, "setrlimit", ignoreFunc },
|
|
{ base + 165, "getrusage", getrusageFunc<ArmLinux64> },
|
|
{ base + 166, "umask" },
|
|
{ base + 167, "prctl" },
|
|
{ base + 168, "getcpu", getcpuFunc },
|
|
{ base + 169, "gettimeofday", gettimeofdayFunc<ArmLinux64> },
|
|
{ base + 170, "settimeofday" },
|
|
{ base + 171, "adjtimex" },
|
|
{ base + 172, "getpid", getpidFunc },
|
|
{ base + 173, "getppid", getppidFunc },
|
|
{ base + 174, "getuid", getuidFunc },
|
|
{ base + 175, "geteuid", geteuidFunc },
|
|
{ base + 176, "getgid", getgidFunc },
|
|
{ base + 177, "getegid", getegidFunc },
|
|
{ base + 178, "gettid", gettidFunc },
|
|
{ base + 179, "sysinfo", sysinfoFunc<ArmLinux64> },
|
|
{ base + 180, "mq_open" },
|
|
{ base + 181, "mq_unlink" },
|
|
{ base + 182, "mq_timedsend" },
|
|
{ base + 183, "mq_timedreceive" },
|
|
{ base + 184, "mq_notify" },
|
|
{ base + 185, "mq_getsetattr" },
|
|
{ base + 186, "msgget" },
|
|
{ base + 187, "msgctl" },
|
|
{ base + 188, "msgrcv" },
|
|
{ base + 189, "msgsnd" },
|
|
{ base + 190, "semget" },
|
|
{ base + 191, "semctl" },
|
|
{ base + 192, "semtimedop" },
|
|
{ base + 193, "semop" },
|
|
{ base + 194, "shmget" },
|
|
{ base + 195, "shmctl" },
|
|
{ base + 196, "shmat" },
|
|
{ base + 197, "shmdt" },
|
|
{ base + 198, "socket" },
|
|
{ base + 199, "socketpair" },
|
|
{ base + 200, "bind" },
|
|
{ base + 201, "listen" },
|
|
{ base + 202, "accept" },
|
|
{ base + 203, "connect" },
|
|
{ base + 204, "getsockname" },
|
|
{ base + 205, "getpeername" },
|
|
{ base + 206, "sendto" },
|
|
{ base + 207, "recvfrom" },
|
|
{ base + 208, "setsockopt" },
|
|
{ base + 209, "getsockopt" },
|
|
{ base + 210, "shutdown" },
|
|
{ base + 211, "sendmsg" },
|
|
{ base + 212, "recvmsg" },
|
|
{ base + 213, "readahead" },
|
|
{ base + 214, "brk", brkFunc },
|
|
{ base + 215, "munmap", munmapFunc },
|
|
{ base + 216, "mremap", mremapFunc<ArmLinux64> },
|
|
{ base + 217, "add_key" },
|
|
{ base + 218, "request_key" },
|
|
{ base + 219, "keyctl" },
|
|
{ base + 220, "clone", cloneBackwardsFunc<ArmLinux64> },
|
|
{ base + 221, "execve", execveFunc<ArmLinux64> },
|
|
{ base + 222, "mmap2", mmapFunc<ArmLinux64> },
|
|
{ base + 223, "fadvise64_64" },
|
|
{ base + 224, "swapon" },
|
|
{ base + 225, "swapoff" },
|
|
{ base + 226, "mprotect", ignoreFunc },
|
|
{ base + 227, "msync" },
|
|
{ base + 228, "mlock" },
|
|
{ base + 229, "munlock" },
|
|
{ base + 230, "mlockall" },
|
|
{ base + 231, "munlockall" },
|
|
{ base + 232, "mincore" },
|
|
{ base + 233, "madvise", ignoreFunc },
|
|
{ base + 234, "remap_file_pages" },
|
|
{ base + 235, "mbind" },
|
|
{ base + 236, "get_mempolicy" },
|
|
{ base + 237, "set_mempolicy" },
|
|
{ base + 238, "migrate_pages" },
|
|
{ base + 239, "move_pages" },
|
|
{ base + 240, "rt_tgsigqueueinfo" },
|
|
{ base + 241, "perf_event_open" },
|
|
{ base + 242, "accept4" },
|
|
{ base + 243, "recvmmsg" },
|
|
{ base + 260, "wait4" },
|
|
{ base + 261, "prlimit64", prlimitFunc<ArmLinux64> },
|
|
{ base + 262, "fanotify_init" },
|
|
{ base + 263, "fanotify_mark" },
|
|
{ base + 264, "name_to_handle_at" },
|
|
{ base + 265, "open_by_handle_at" },
|
|
{ base + 266, "clock_adjtime" },
|
|
{ base + 267, "syncfs" },
|
|
{ base + 268, "setns" },
|
|
{ base + 269, "sendmmsg" },
|
|
{ base + 270, "process_vm_readv" },
|
|
{ base + 271, "process_vm_writev" },
|
|
{ base + 1024, "open", openFunc<ArmLinux64> },
|
|
{ base + 1025, "link" },
|
|
{ base + 1026, "unlink", unlinkFunc },
|
|
{ base + 1027, "mknod" },
|
|
{ base + 1028, "chmod", chmodFunc<ArmLinux64> },
|
|
{ base + 1029, "chown" },
|
|
{ base + 1030, "mkdir", mkdirFunc },
|
|
{ base + 1031, "rmdir" },
|
|
{ base + 1032, "lchown" },
|
|
{ base + 1033, "access", accessFunc },
|
|
{ base + 1034, "rename", renameFunc },
|
|
{ base + 1035, "readlink", readlinkFunc },
|
|
{ base + 1036, "symlink" },
|
|
{ base + 1037, "utimes" },
|
|
{ base + 1038, "stat64", stat64Func<ArmLinux64> },
|
|
{ base + 1039, "lstat64", lstat64Func<ArmLinux64> },
|
|
{ base + 1040, "pipe", pipePseudoFunc },
|
|
{ base + 1041, "dup2" },
|
|
{ base + 1042, "epoll_create" },
|
|
{ base + 1043, "inotify_init" },
|
|
{ base + 1044, "eventfd" },
|
|
{ base + 1045, "signalfd" },
|
|
{ base + 1046, "sendfile" },
|
|
{ base + 1047, "ftruncate", ftruncateFunc },
|
|
{ base + 1048, "truncate", truncateFunc },
|
|
{ base + 1049, "stat", statFunc<ArmLinux64> },
|
|
{ base + 1050, "lstat" },
|
|
{ base + 1051, "fstat", fstatFunc<ArmLinux64> },
|
|
{ base + 1052, "fcntl", fcntlFunc },
|
|
{ base + 1053, "fadvise64" },
|
|
{ base + 1054, "newfstatat" },
|
|
{ base + 1055, "fstatfs" },
|
|
{ base + 1056, "statfs" },
|
|
{ base + 1057, "lseek", lseekFunc },
|
|
{ base + 1058, "mmap", mmapFunc<ArmLinux64> },
|
|
{ base + 1059, "alarm" },
|
|
{ base + 1060, "getpgrp" },
|
|
{ base + 1061, "pause" },
|
|
{ base + 1062, "time", timeFunc<ArmLinux64> },
|
|
{ base + 1063, "utime" },
|
|
{ base + 1064, "creat" },
|
|
#if defined(SYS_getdents)
|
|
{ base + 1065, "getdents", getdentsFunc },
|
|
#else
|
|
{ base + 1065, "getdents" },
|
|
#endif
|
|
{ base + 1066, "futimesat" },
|
|
{ base + 1067, "select" },
|
|
{ base + 1068, "poll" },
|
|
{ base + 1069, "epoll_wait" },
|
|
{ base + 1070, "ustat" },
|
|
{ base + 1071, "vfork" },
|
|
{ base + 1072, "oldwait4" },
|
|
{ base + 1073, "recv" },
|
|
{ base + 1074, "send" },
|
|
{ base + 1075, "bdflush" },
|
|
{ base + 1076, "umount" },
|
|
{ base + 1077, "uselib" },
|
|
{ base + 1078, "_sysctl" },
|
|
{ base + 1079, "fork" }
|
|
})
|
|
{}
|
|
};
|
|
|
|
static SyscallTable64 syscallDescs64Low(0), syscallDescs64High(0x900000);
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|
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static SyscallDescTable<ArmLinuxProcess32::SyscallABI> privSyscallDescs32 = {
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{ 0xf0001, "breakpoint" },
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{ 0xf0002, "cacheflush" },
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{ 0xf0003, "usr26" },
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{ 0xf0004, "usr32" },
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{ 0xf0005, "set_tls", setTLSFunc32 },
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};
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|
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// Indices 1, 3 and 4 are unallocated.
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static SyscallDescTable<ArmLinuxProcess64::SyscallABI> privSyscallDescs64 = {
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{ 0x1002, "cacheflush" },
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{ 0x1005, "set_tls", setTLSFunc64 }
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};
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|
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ArmLinuxProcess32::ArmLinuxProcess32(ProcessParams * params,
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::Loader::ObjectFile *objFile, ::Loader::Arch _arch) :
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ArmProcess32(params, objFile, _arch)
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|
{}
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|
|
|
ArmLinuxProcess64::ArmLinuxProcess64(ProcessParams * params,
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::Loader::ObjectFile *objFile, ::Loader::Arch _arch) :
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|
ArmProcess64(params, objFile, _arch)
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|
{}
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|
|
|
const Addr ArmLinuxProcess32::commPage = 0xffff0000;
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|
|
|
void
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|
ArmLinuxProcess32::initState()
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|
{
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|
ArmProcess32::initState();
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|
allocateMem(commPage, PageBytes);
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|
ThreadContext *tc = system->getThreadContext(contextIds[0]);
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|
|
|
uint8_t swiNeg1[] = {
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|
0xff, 0xff, 0xff, 0xef // swi -1
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|
};
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|
|
|
// Fill this page with swi -1 so we'll no if we land in it somewhere.
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for (Addr addr = 0; addr < PageBytes; addr += sizeof(swiNeg1)) {
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tc->getVirtProxy().writeBlob(commPage + addr,
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swiNeg1, sizeof(swiNeg1));
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|
}
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|
|
|
uint8_t memory_barrier[] =
|
|
{
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|
0x5f, 0xf0, 0x7f, 0xf5, // dmb
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|
0x0e, 0xf0, 0xa0, 0xe1 // return
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|
};
|
|
tc->getVirtProxy().writeBlob(commPage + 0x0fa0, memory_barrier,
|
|
sizeof(memory_barrier));
|
|
|
|
uint8_t cmpxchg[] =
|
|
{
|
|
0x9f, 0x3f, 0x92, 0xe1, // ldrex r3, [r2]
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|
0x00, 0x30, 0x53, 0xe0, // subs r3, r3, r0
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|
0x91, 0x3f, 0x82, 0x01, // strexeq r3, r1, [r2]
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|
0x01, 0x00, 0x33, 0x03, // teqeq r3, #1
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|
0xfa, 0xff, 0xff, 0x0a, // beq 1b
|
|
0x00, 0x00, 0x73, 0xe2, // rsbs r0, r3, #0
|
|
0x5f, 0xf0, 0x7f, 0xf5, // dmb
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|
0x0e, 0xf0, 0xa0, 0xe1 // return
|
|
};
|
|
tc->getVirtProxy().writeBlob(commPage + 0x0fc0, cmpxchg, sizeof(cmpxchg));
|
|
|
|
uint8_t get_tls[] =
|
|
{
|
|
// read user read-only thread id register
|
|
0x70, 0x0f, 0x1d, 0xee, // mrc p15, 0, r0, c13, c0, 3
|
|
0x0e, 0xf0, 0xa0, 0xe1 // return
|
|
};
|
|
tc->getVirtProxy().writeBlob(commPage + 0x0fe0, get_tls, sizeof(get_tls));
|
|
}
|
|
|
|
void
|
|
ArmLinuxProcess64::initState()
|
|
{
|
|
ArmProcess64::initState();
|
|
// The 64 bit equivalent of the comm page would be set up here.
|
|
}
|
|
|
|
void
|
|
ArmLinuxProcess32::syscall(ThreadContext *tc, Fault *fault)
|
|
{
|
|
ArmProcess32::syscall(tc, fault);
|
|
|
|
int num = tc->readIntReg(INTREG_R7);
|
|
SyscallDesc *desc = syscallDescs32Low.get(num, false);
|
|
if (!desc)
|
|
desc = syscallDescs32Low.get(num, false);
|
|
if (!desc)
|
|
desc = privSyscallDescs32.get(num);
|
|
desc->doSyscall(tc, fault);
|
|
}
|
|
|
|
void
|
|
ArmLinuxProcess64::syscall(ThreadContext *tc, Fault *fault)
|
|
{
|
|
ArmProcess64::syscall(tc, fault);
|
|
|
|
int num = tc->readIntReg(INTREG_X8);
|
|
SyscallDesc *desc = syscallDescs64Low.get(num, false);
|
|
if (!desc)
|
|
desc = syscallDescs64Low.get(num, false);
|
|
if (!desc)
|
|
desc = privSyscallDescs64.get(num);
|
|
desc->doSyscall(tc, fault);
|
|
}
|