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cd69bb50414450c3bb5ef41dce676b75fd42c0ee
gem5/src/arch/x86/linux/process.cc
Gabe Black cd69bb5041 arch,sim: Merge Process::syscall and Process::getDesc. 
When handling a system call, external code would call Process::syscall
which would extract the syscall number, that would call the base
class' doSyscall method, that would call into the subclass' getDesc
to get the appropriate descriptor, and then doSyscall would check
that a syscall was found and call into it.

Instead, we can just make the SyscallDescTable optionally check for
missing syscalls (in case we want to check multiple tables), and
make syscall look up the appropriate descriptor and call it. The base
implementation of syscall would then do the only bit of doSyscall that
is no longer being handled, incrementing the numSyscalls stat.

Change-Id: If102c156830ed2997d177dc6937cc85dddadf3f9
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/24119
Tested-by: kokoro <noreply+kokoro@google.com>
Tested-by: Gem5 Cloud Project GCB service account <345032938727@cloudbuild.gserviceaccount.com>
Maintainer: Gabe Black <gabeblack@google.com>
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
2020-03-20 10:04:18 +00:00

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/*
* Copyright (c) 2007 The Hewlett-Packard Development Company
* All rights reserved.
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "arch/x86/linux/process.hh"
#include <sys/syscall.h>
#include "arch/x86/isa_traits.hh"
#include "arch/x86/linux/linux.hh"
#include "arch/x86/registers.hh"
#include "base/loader/object_file.hh"
#include "base/trace.hh"
#include "cpu/thread_context.hh"
#include "kern/linux/linux.hh"
#include "sim/process.hh"
#include "sim/syscall_desc.hh"
#include "sim/syscall_emul.hh"
using namespace std;
using namespace X86ISA;
namespace
{
class X86LinuxObjectFileLoader : public Process::Loader
{
public:
Process *
load(ProcessParams *params, ObjectFile *obj_file) override
{
auto arch = obj_file->getArch();
auto opsys = obj_file->getOpSys();
if (arch != ObjectFile::X86_64 && arch != ObjectFile::I386)
return nullptr;
if (opsys == ObjectFile::UnknownOpSys) {
warn("Unknown operating system; assuming Linux.");
opsys = ObjectFile::Linux;
}
if (opsys != ObjectFile::Linux)
return nullptr;
if (arch == ObjectFile::X86_64)
return new X86_64LinuxProcess(params, obj_file);
else
return new I386LinuxProcess(params, obj_file);
}
};
X86LinuxObjectFileLoader loader;
} // anonymous namespace
/// Target uname() handler.
static SyscallReturn
unameFunc(SyscallDesc *desc, ThreadContext *tc, Addr utsname)
{
auto process = tc->getProcessPtr();
TypedBufferArg<Linux::utsname> name(utsname);
strcpy(name->sysname, "Linux");
strcpy(name->nodename, "sim.gem5.org");
strcpy(name->release, process->release.c_str());
strcpy(name->version, "#1 Mon Aug 18 11:32:15 EDT 2003");
strcpy(name->machine, "x86_64");
name.copyOut(tc->getVirtProxy());
return 0;
}
static SyscallReturn
archPrctlFunc(SyscallDesc *desc, ThreadContext *tc, int code, uint64_t addr)
{
enum ArchPrctlCodes
{
SetFS = 0x1002,
GetFS = 0x1003,
SetGS = 0x1001,
GetGS = 0x1004
};
uint64_t fsBase, gsBase;
PortProxy &p = tc->getVirtProxy();
switch(code)
{
// Each of these valid options should actually check addr.
case SetFS:
tc->setMiscRegNoEffect(MISCREG_FS_BASE, addr);
tc->setMiscRegNoEffect(MISCREG_FS_EFF_BASE, addr);
return 0;
case GetFS:
fsBase = tc->readMiscRegNoEffect(MISCREG_FS_BASE);
p.write(addr, fsBase);
return 0;
case SetGS:
tc->setMiscRegNoEffect(MISCREG_GS_BASE, addr);
tc->setMiscRegNoEffect(MISCREG_GS_EFF_BASE, addr);
return 0;
case GetGS:
gsBase = tc->readMiscRegNoEffect(MISCREG_GS_BASE);
p.write(addr, gsBase);
return 0;
default:
return -EINVAL;
}
}
BitUnion32(UserDescFlags)
Bitfield<0> seg_32bit;
Bitfield<2, 1> contents;
Bitfield<3> read_exec_only;
Bitfield<4> limit_in_pages;
Bitfield<5> seg_not_present;
Bitfield<6> useable;
EndBitUnion(UserDescFlags)
struct UserDesc32 {
uint32_t entry_number;
uint32_t base_addr;
uint32_t limit;
uint32_t flags;
};
struct UserDesc64 {
uint32_t entry_number;
uint32_t __padding1;
uint64_t base_addr;
uint32_t limit;
uint32_t flags;
};
static SyscallReturn
setThreadArea32Func(SyscallDesc *desc, ThreadContext *tc, Addr userDescPtr)
{
const int minTLSEntry = 6;
const int numTLSEntries = 3;
const int maxTLSEntry = minTLSEntry + numTLSEntries - 1;
auto process = tc->getProcessPtr();
X86Process *x86p = dynamic_cast<X86Process *>(process);
assert(x86p);
assert((maxTLSEntry + 1) * sizeof(uint64_t) <= x86p->gdtSize());
TypedBufferArg<UserDesc32> userDesc(userDescPtr);
TypedBufferArg<uint64_t>
gdt(x86p->gdtStart() + minTLSEntry * sizeof(uint64_t),
numTLSEntries * sizeof(uint64_t));
if (!userDesc.copyIn(tc->getVirtProxy()))
return -EFAULT;
if (!gdt.copyIn(tc->getVirtProxy()))
panic("Failed to copy in GDT for %s.\n", desc->name());
if (userDesc->entry_number == (uint32_t)(-1)) {
// Find a free TLS entry.
for (int i = 0; i < numTLSEntries; i++) {
if (gdt[i] == 0) {
userDesc->entry_number = i + minTLSEntry;
break;
}
}
// We failed to find one.
if (userDesc->entry_number == (uint32_t)(-1))
return -ESRCH;
}
int index = userDesc->entry_number;
if (index < minTLSEntry || index > maxTLSEntry)
return -EINVAL;
index -= minTLSEntry;
// Build the entry we're going to add.
SegDescriptor segDesc = 0;
UserDescFlags flags = userDesc->flags;
segDesc.limitLow = bits(userDesc->limit, 15, 0);
segDesc.baseLow = bits(userDesc->base_addr, 23, 0);
segDesc.type.a = 1;
if (!flags.read_exec_only)
segDesc.type.w = 1;
if (bits((uint8_t)flags.contents, 0))
segDesc.type.e = 1;
if (bits((uint8_t)flags.contents, 1))
segDesc.type.codeOrData = 1;
segDesc.s = 1;
segDesc.dpl = 3;
if (!flags.seg_not_present)
segDesc.p = 1;
segDesc.limitHigh = bits(userDesc->limit, 19, 16);
if (flags.useable)
segDesc.avl = 1;
segDesc.l = 0;
if (flags.seg_32bit)
segDesc.d = 1;
if (flags.limit_in_pages)
segDesc.g = 1;
segDesc.baseHigh = bits(userDesc->base_addr, 31, 24);
gdt[index] = (uint64_t)segDesc;
if (!userDesc.copyOut(tc->getVirtProxy()))
return -EFAULT;
if (!gdt.copyOut(tc->getVirtProxy()))
panic("Failed to copy out GDT for %s.\n", desc->name());
return 0;
}
const std::vector<IntRegIndex> X86_64LinuxProcess::SyscallABI::ArgumentRegs = {
INTREG_RDI, INTREG_RSI, INTREG_RDX, INTREG_R10W, INTREG_R8W, INTREG_R9W
};
static SyscallDescTable<X86_64LinuxProcess::SyscallABI> syscallDescs64 = {
{ 0, "read", readFunc<X86Linux64> },
{ 1, "write", writeFunc<X86Linux64> },
{ 2, "open", openFunc<X86Linux64> },
{ 3, "close", closeFunc },
{ 4, "stat", stat64Func<X86Linux64> },
{ 5, "fstat", fstat64Func<X86Linux64> },
{ 6, "lstat", lstat64Func<X86Linux64> },
{ 7, "poll", pollFunc<X86Linux64> },
{ 8, "lseek", lseekFunc },
{ 9, "mmap", mmapFunc<X86Linux64> },
{ 10, "mprotect", ignoreFunc },
{ 11, "munmap", munmapFunc },
{ 12, "brk", brkFunc },
{ 13, "rt_sigaction", ignoreWarnOnceFunc },
{ 14, "rt_sigprocmask", ignoreWarnOnceFunc },
{ 15, "rt_sigreturn" },
{ 16, "ioctl", ioctlFunc<X86Linux64> },
{ 17, "pread64", pread64Func<X86Linux64> },
{ 18, "pwrite64", pwrite64Func<X86Linux64> },
{ 19, "readv", readvFunc<X86Linux64> },
{ 20, "writev", writevFunc<X86Linux64> },
{ 21, "access", ignoreFunc },
{ 22, "pipe", pipeFunc },
{ 23, "select", selectFunc<X86Linux64> },
{ 24, "sched_yield", ignoreFunc },
{ 25, "mremap", mremapFunc<X86Linux64> },
{ 26, "msync" },
{ 27, "mincore" },
{ 28, "madvise", ignoreFunc },
{ 29, "shmget" },
{ 30, "shmat" },
{ 31, "shmctl" },
{ 32, "dup", dupFunc },
{ 33, "dup2", dup2Func },
{ 34, "pause" },
{ 35, "nanosleep", ignoreWarnOnceFunc },
{ 36, "getitimer" },
{ 37, "alarm" },
{ 38, "setitimer" },
{ 39, "getpid", getpidFunc },
{ 40, "sendfile" },
{ 41, "socket", socketFunc<X86Linux64> },
{ 42, "connect", connectFunc },
{ 43, "accept", acceptFunc<X86Linux64> },
{ 44, "sendto", sendtoFunc },
{ 45, "recvfrom", recvfromFunc },
{ 46, "sendmsg", sendmsgFunc },
{ 47, "recvmsg", recvmsgFunc },
{ 48, "shutdown", shutdownFunc },
{ 49, "bind", bindFunc },
{ 50, "listen", listenFunc },
{ 51, "getsockname", getsocknameFunc },
{ 52, "getpeername", getpeernameFunc },
{ 53, "socketpair", socketpairFunc<X86Linux64> },
{ 54, "setsockopt", setsockoptFunc },
{ 55, "getsockopt", getsockoptFunc },
{ 56, "clone", cloneFunc<X86Linux64> },
{ 57, "fork" },
{ 58, "vfork" },
{ 59, "execve", execveFunc<X86Linux64> },
{ 60, "exit", exitFunc },
{ 61, "wait4", wait4Func<X86Linux64> },
{ 62, "kill" },
{ 63, "uname", unameFunc },
{ 64, "semget" },
{ 65, "semop" },
{ 66, "semctl" },
{ 67, "shmdt" },
{ 68, "msgget" },
{ 69, "msgsnd" },
{ 70, "msgrcv" },
{ 71, "msgctl" },
{ 72, "fcntl", fcntlFunc },
{ 73, "flock" },
{ 74, "fsync" },
{ 75, "fdatasync" },
{ 76, "truncate", truncateFunc },
{ 77, "ftruncate", ftruncateFunc },
#if defined(SYS_getdents)
{ 78, "getdents", getdentsFunc },
#else
{ 78, "getdents" },
#endif
{ 79, "getcwd", getcwdFunc },
{ 80, "chdir", chdirFunc },
{ 81, "fchdir" },
{ 82, "rename", renameFunc },
{ 83, "mkdir", mkdirFunc },
{ 84, "rmdir", rmdirFunc },
{ 85, "creat" },
{ 86, "link", linkFunc },
{ 87, "unlink", unlinkFunc },
{ 88, "symlink", symlinkFunc },
{ 89, "readlink", readlinkFunc },
{ 90, "chmod" },
{ 91, "fchmod" },
{ 92, "chown" },
{ 93, "fchown" },
{ 94, "lchown" },
{ 95, "umask", umaskFunc },
{ 96, "gettimeofday", gettimeofdayFunc<X86Linux64> },
{ 97, "getrlimit", getrlimitFunc<X86Linux64> },
{ 98, "getrusage", getrusageFunc<X86Linux64> },
{ 99, "sysinfo", sysinfoFunc<X86Linux64> },
{ 100, "times", timesFunc<X86Linux64> },
{ 101, "ptrace" },
{ 102, "getuid", getuidFunc },
{ 103, "syslog" },
{ 104, "getgid", getgidFunc },
{ 105, "setuid" },
{ 106, "setgid" },
{ 107, "geteuid", geteuidFunc },
{ 108, "getegid", getegidFunc },
{ 109, "setpgid", setpgidFunc },
{ 110, "getppid", getppidFunc },
{ 111, "getpgrp", getpgrpFunc },
{ 112, "setsid" },
{ 113, "setreuid" },
{ 114, "setregid" },
{ 115, "getgroups" },
{ 116, "setgroups" },
{ 117, "setresuid", ignoreFunc },
{ 118, "getresuid" },
{ 119, "setresgid" },
{ 120, "getresgid" },
{ 121, "getpgid" },
{ 122, "setfsuid" },
{ 123, "setfsgid" },
{ 124, "getsid" },
{ 125, "capget" },
{ 126, "capset" },
{ 127, "rt_sigpending" },
{ 128, "rt_sigtimedwait" },
{ 129, "rt_sigqueueinfo" },
{ 130, "rt_sigsuspend" },
{ 131, "sigaltstack" },
{ 132, "utime" },
{ 133, "mknod", mknodFunc },
{ 134, "uselib" },
{ 135, "personality" },
{ 136, "ustat" },
{ 137, "statfs", statfsFunc<X86Linux64> },
{ 138, "fstatfs", fstatfsFunc<X86Linux64> },
{ 139, "sysfs" },
{ 140, "getpriority" },
{ 141, "setpriority", ignoreFunc },
{ 142, "sched_setparam" },
{ 143, "sched_getparam" },
{ 144, "sched_setscheduler" },
{ 145, "sched_getscheduler" },
{ 146, "sched_get_priority_max" },
{ 147, "sched_get_priority_min" },
{ 148, "sched_rr_get_interval" },
{ 149, "mlock" },
{ 150, "munlock" },
{ 151, "mlockall" },
{ 152, "munlockall" },
{ 153, "vhangup" },
{ 154, "modify_ldt" },
{ 155, "pivot_root" },
{ 156, "_sysctl" },
{ 157, "prctl" },
{ 158, "arch_prctl", archPrctlFunc },
{ 159, "adjtimex" },
{ 160, "setrlimit", ignoreFunc },
{ 161, "chroot" },
{ 162, "sync" },
{ 163, "acct" },
{ 164, "settimeofday" },
{ 165, "mount" },
{ 166, "umount2" },
{ 167, "swapon" },
{ 168, "swapoff" },
{ 169, "reboot" },
{ 170, "sethostname" },
{ 171, "setdomainname" },
{ 172, "iopl" },
{ 173, "ioperm" },
{ 174, "create_module" },
{ 175, "init_module" },
{ 176, "delete_module" },
{ 177, "get_kernel_syms" },
{ 178, "query_module" },
{ 179, "quotactl" },
{ 180, "nfsservctl" },
{ 181, "getpmsg" },
{ 182, "putpmsg" },
{ 183, "afs_syscall" },
{ 184, "tuxcall" },
{ 185, "security" },
{ 186, "gettid", gettidFunc },
{ 187, "readahead" },
{ 188, "setxattr" },
{ 189, "lsetxattr" },
{ 190, "fsetxattr" },
{ 191, "getxattr" },
{ 192, "lgetxattr" },
{ 193, "fgetxattr" },
{ 194, "listxattr" },
{ 195, "llistxattr" },
{ 196, "flistxattr" },
{ 197, "removexattr" },
{ 198, "lremovexattr" },
{ 199, "fremovexattr" },
{ 200, "tkill" },
{ 201, "time", timeFunc<X86Linux64> },
{ 202, "futex", futexFunc<X86Linux64> },
{ 203, "sched_setaffinity" },
{ 204, "sched_getaffinity", ignoreFunc },
{ 205, "set_thread_area" },
{ 206, "io_setup" },
{ 207, "io_destroy" },
{ 208, "io_getevents" },
{ 209, "io_submit" },
{ 210, "io_cancel" },
{ 211, "get_thread_area" },
{ 212, "lookup_dcookie" },
{ 213, "epoll_create" },
{ 214, "epoll_ctl_old" },
{ 215, "epoll_wait_old" },
{ 216, "remap_file_pages" },
{ 217, "getdents64" },
{ 218, "set_tid_address", setTidAddressFunc },
{ 219, "restart_syscall" },
{ 220, "semtimedop" },
{ 221, "fadvise64", ignoreFunc },
{ 222, "timer_create" },
{ 223, "timer_settime" },
{ 224, "timer_gettime" },
{ 225, "timer_getoverrun" },
{ 226, "timer_delete" },
{ 227, "clock_settime" },
{ 228, "clock_gettime", clock_gettimeFunc<X86Linux64> },
{ 229, "clock_getres", clock_getresFunc<X86Linux64> },
{ 230, "clock_nanosleep" },
{ 231, "exit_group", exitGroupFunc },
{ 232, "epoll_wait" },
{ 233, "epoll_ctl" },
{ 234, "tgkill", tgkillFunc<X86Linux64> },
{ 235, "utimes" },
{ 236, "vserver" },
{ 237, "mbind" },
{ 238, "set_mempolicy" },
{ 239, "get_mempolicy", ignoreFunc },
{ 240, "mq_open" },
{ 241, "mq_unlink" },
{ 242, "mq_timedsend" },
{ 243, "mq_timedreceive" },
{ 244, "mq_notify" },
{ 245, "mq_getsetattr" },
{ 246, "kexec_load" },
{ 247, "waitid" },
{ 248, "add_key" },
{ 249, "request_key" },
{ 250, "keyctl" },
{ 251, "ioprio_set" },
{ 252, "ioprio_get" },
{ 253, "inotify_init" },
{ 254, "inotify_add_watch" },
{ 255, "inotify_rm_watch" },
{ 256, "migrate_pages" },
{ 257, "openat", openatFunc<X86Linux64> },
{ 258, "mkdirat" },
{ 259, "mknodat" },
{ 260, "fchownat" },
{ 261, "futimesat" },
{ 262, "newfstatat" },
{ 263, "unlinkat" },
{ 264, "renameat" },
{ 265, "linkat" },
{ 266, "symlinkat" },
{ 267, "readlinkat", readlinkFunc },
{ 268, "fchmodat" },
{ 269, "faccessat" },
{ 270, "pselect6" },
{ 271, "ppoll" },
{ 272, "unshare" },
{ 273, "set_robust_list", ignoreFunc },
{ 274, "get_robust_list" },
{ 275, "splice" },
{ 276, "tee" },
{ 277, "sync_file_range" },
{ 278, "vmsplice" },
{ 279, "move_pages" },
{ 280, "utimensat" },
{ 281, "epoll_pwait" },
{ 282, "signalfd" },
{ 283, "timerfd_create" },
{ 284, "eventfd", eventfdFunc<X86Linux64> },
{ 285, "fallocate", fallocateFunc },
{ 286, "timerfd_settime" },
{ 287, "timerfd_gettime" },
{ 288, "accept4" },
{ 289, "signalfd4" },
{ 290, "eventfd2", eventfdFunc<X86Linux64> },
{ 291, "epoll_create1" },
{ 292, "dup3" },
{ 293, "pipe2", pipe2Func },
{ 294, "inotify_init1" },
{ 295, "preadv" },
{ 296, "pwritev" },
{ 297, "rt_tgsigqueueinfo" },
{ 298, "perf_event_open" },
{ 299, "recvmmsg" },
{ 300, "fanotify_init" },
{ 301, "fanotify_mark" },
{ 302, "prlimit64", prlimitFunc<X86Linux64> },
{ 303, "name_to_handle_at" },
{ 304, "open_by_handle_at" },
{ 305, "clock_adjtime" },
{ 306, "syncfs" },
{ 307, "sendmmsg" },
{ 308, "setns" },
{ 309, "getcpu" },
{ 310, "proess_vm_readv" },
{ 311, "proess_vm_writev" },
{ 312, "kcmp" },
{ 313, "finit_module" },
};
void
X86_64LinuxProcess::syscall(ThreadContext *tc, Fault *fault)
{
X86_64Process::syscall(tc, fault);
syscallDescs64.get(tc->readIntReg(INTREG_RAX))->doSyscall(tc, fault);
}
void
X86_64LinuxProcess::clone(ThreadContext *old_tc, ThreadContext *new_tc,
Process *process, RegVal flags)
{
X86_64Process::clone(old_tc, new_tc, (X86_64Process*)process, flags);
}
const std::vector<IntRegIndex> I386LinuxProcess::SyscallABI::ArgumentRegs = {
INTREG_EBX, INTREG_ECX, INTREG_EDX, INTREG_ESI, INTREG_EDI, INTREG_EBP
};
static SyscallDescTable<I386LinuxProcess::SyscallABI> syscallDescs32 = {
{ 0, "restart_syscall" },
{ 1, "exit", exitFunc },
{ 2, "fork" },
{ 3, "read", readFunc<X86Linux32> },
{ 4, "write", writeFunc<X86Linux32> },
{ 5, "open", openFunc<X86Linux32> },
{ 6, "close", closeFunc },
{ 7, "waitpid" },
{ 8, "creat" },
{ 9, "link" },
{ 10, "unlink" },
{ 11, "execve", execveFunc<X86Linux32> },
{ 12, "chdir", chdirFunc },
{ 13, "time", timeFunc<X86Linux32> },
{ 14, "mknod", mknodFunc },
{ 15, "chmod" },
{ 16, "lchown" },
{ 17, "break" },
{ 18, "oldstat" },
{ 19, "lseek" },
{ 20, "getpid", getpidFunc },
{ 21, "mount" },
{ 22, "umount" },
{ 23, "setuid" },
{ 24, "getuid", getuidFunc },
{ 25, "stime" },
{ 26, "ptrace" },
{ 27, "alarm" },
{ 28, "oldfstat" },
{ 29, "pause" },
{ 30, "utime" },
{ 31, "stty" },
{ 32, "gtty" },
{ 33, "access", ignoreFunc },
{ 34, "nice" },
{ 35, "ftime" },
{ 36, "sync" },
{ 37, "kill" },
{ 38, "rename" },
{ 39, "mkdir", mkdirFunc },
{ 40, "rmdir", mkdirFunc },
{ 41, "dup", dupFunc },
{ 42, "pipe", pipeFunc },
{ 43, "times", timesFunc<X86Linux32> },
{ 44, "prof" },
{ 45, "brk", brkFunc },
{ 46, "setgid" },
{ 47, "getgid", getgidFunc },
{ 48, "signal" },
{ 49, "geteuid", geteuidFunc },
{ 50, "getegid", getegidFunc },
{ 51, "acct" },
{ 52, "umount2" },
{ 53, "lock" },
{ 54, "ioctl", ioctlFunc<X86Linux32> },
{ 55, "fcntl", fcntlFunc },
{ 56, "mpx" },
{ 57, "setpgid", setpgidFunc },
{ 58, "ulimit" },
{ 59, "oldolduname" },
{ 60, "umask", umaskFunc },
{ 61, "chroot" },
{ 62, "ustat" },
{ 63, "dup2", dup2Func },
{ 64, "getppid" },
{ 65, "getpgrp" },
{ 66, "setsid" },
{ 67, "sigaction" },
{ 68, "sgetmask" },
{ 69, "ssetmask" },
{ 70, "setreuid" },
{ 71, "setregid" },
{ 72, "sigsuspend" },
{ 73, "sigpending" },
{ 74, "sethostname" },
{ 75, "setrlimit", ignoreFunc },
{ 76, "getrlimit", getrlimitFunc<X86Linux32> },
{ 77, "getrusage", getrusageFunc<X86Linux32> },
{ 78, "gettimeofday" },
{ 79, "settimeofday" },
{ 80, "getgroups" },
{ 81, "setgroups" },
{ 82, "select", selectFunc<X86Linux32> },
{ 83, "symlink" },
{ 84, "oldlstat" },
{ 85, "readlink", readlinkFunc },
{ 86, "uselib" },
{ 87, "swapon" },
{ 88, "reboot" },
{ 89, "readdir" },
{ 90, "mmap" },
{ 91, "munmap", munmapFunc },
{ 92, "truncate", truncateFunc },
{ 93, "ftruncate", ftruncateFunc },
{ 94, "fchmod" },
{ 95, "fchown" },
{ 96, "getpriority" },
{ 97, "setpriority", ignoreFunc },
{ 98, "profil" },
{ 99, "statfs", ignoreFunc },
{ 100, "fstatfs" },
{ 101, "ioperm" },
{ 102, "socketcall" },
{ 103, "syslog" },
{ 104, "setitimer" },
{ 105, "getitimer" },
{ 106, "stat" },
{ 107, "lstat" },
{ 108, "fstat" },
{ 109, "olduname" },
{ 110, "iopl" },
{ 111, "vhangup" },
{ 112, "idle" },
{ 113, "vm86old" },
{ 114, "wait4", wait4Func<X86Linux32> },
{ 115, "swapoff" },
{ 116, "sysinfo", sysinfoFunc<X86Linux32> },
{ 117, "ipc" },
{ 118, "fsync" },
{ 119, "sigreturn" },
{ 120, "clone", cloneFunc<X86Linux32> },
{ 121, "setdomainname" },
{ 122, "uname", unameFunc },
{ 123, "modify_ldt" },
{ 124, "adjtimex" },
{ 125, "mprotect", ignoreFunc },
{ 126, "sigprocmask" },
{ 127, "create_module" },
{ 128, "init_module" },
{ 129, "delete_module" },
{ 130, "get_kernel_syms" },
{ 131, "quotactl" },
{ 132, "getpgid" },
{ 133, "fchdir" },
{ 134, "bdflush" },
{ 135, "sysfs" },
{ 136, "personality" },
{ 137, "afs_syscall" },
{ 138, "setfsuid" },
{ 139, "setfsgid" },
{ 140, "_llseek", _llseekFunc },
#if defined(SYS_getdents)
{ 141, "getdents", getdentsFunc },
#else
{ 141, "getdents" },
#endif
{ 142, "_newselect" },
{ 143, "flock" },
{ 144, "msync" },
{ 145, "readv", readvFunc<X86Linux32> },
{ 146, "writev", writevFunc<X86Linux32> },
{ 147, "getsid" },
{ 148, "fdatasync" },
{ 149, "_sysctl" },
{ 150, "mlock" },
{ 151, "munlock" },
{ 152, "mlockall" },
{ 153, "munlockall" },
{ 154, "sched_setparam" },
{ 155, "sched_getparam" },
{ 156, "sched_setscheduler" },
{ 157, "sched_getscheduler" },
{ 158, "sched_yield", ignoreFunc },
{ 159, "sched_get_priority_max" },
{ 160, "sched_get_priority_min" },
{ 161, "sched_rr_get_interval" },
{ 162, "nanosleep", ignoreFunc },
{ 163, "mremap" },
{ 164, "setresuid", ignoreFunc },
{ 165, "getresuid" },
{ 166, "vm86" },
{ 167, "query_module" },
{ 168, "poll", pollFunc<X86Linux32> },
{ 169, "nfsservctl" },
{ 170, "setresgid" },
{ 171, "getresgid" },
{ 172, "prctl" },
{ 173, "rt_sigreturn" },
{ 174, "rt_sigaction", ignoreFunc },
{ 175, "rt_sigprocmask", ignoreFunc },
{ 176, "rt_sigpending" },
{ 177, "rt_sigtimedwait" },
{ 178, "rt_sigqueueinfo" },
{ 179, "rt_sigsuspend" },
{ 180, "pread64", pread64Func<X86Linux64> },
{ 181, "pwrite64", pwrite64Func<X86Linux64> },
{ 182, "chown" },
{ 183, "getcwd", getcwdFunc },
{ 184, "capget" },
{ 185, "capset" },
{ 186, "sigaltstack" },
{ 187, "sendfile" },
{ 188, "getpmsg" },
{ 189, "putpmsg" },
{ 190, "vfork" },
{ 191, "ugetrlimit", ignoreFunc },
{ 192, "mmap2", mmap2Func<X86Linux32> },
{ 193, "truncate64", truncate64Func },
{ 194, "ftruncate64", ftruncate64Func },
{ 195, "stat64", stat64Func<X86Linux32> },
{ 196, "lstat64" },
{ 197, "fstat64", fstat64Func<X86Linux32> },
{ 198, "lchown32" },
{ 199, "getuid32", getuidFunc },
{ 200, "getgid32", getgidFunc },
{ 201, "geteuid32", geteuidFunc },
{ 202, "getegid32", getegidFunc },
{ 203, "setreuid32" },
{ 204, "setregid32" },
{ 205, "getgroups32" },
{ 206, "setgroups32" },
{ 207, "fchown32" },
{ 208, "setresuid32" },
{ 209, "getresuid32" },
{ 210, "setresgid32" },
{ 211, "getresgid32" },
{ 212, "chown32" },
{ 213, "setuid32" },
{ 214, "setgid32" },
{ 215, "setfsuid32" },
{ 216, "setfsgid32" },
{ 217, "pivot_root" },
{ 218, "mincore" },
{ 219, "madvise", ignoreFunc },
{ 220, "madvise1" },
{ 221, "getdents64" },
{ 222, "fcntl64" },
{ 223, "unused" },
{ 224, "gettid", gettidFunc },
{ 225, "readahead" },
{ 226, "setxattr" },
{ 227, "lsetxattr" },
{ 228, "fsetxattr" },
{ 229, "getxattr" },
{ 230, "lgetxattr" },
{ 231, "fgetxattr" },
{ 232, "listxattr" },
{ 233, "llistxattr" },
{ 234, "flistxattr" },
{ 235, "removexattr" },
{ 236, "lremovexattr" },
{ 237, "fremovexattr" },
{ 238, "tkill" },
{ 239, "sendfile64" },
{ 240, "futex" },
{ 241, "sched_setaffinity" },
{ 242, "sched_getaffinity", ignoreFunc },
{ 243, "set_thread_area", setThreadArea32Func },
{ 244, "get_thread_area" },
{ 245, "io_setup" },
{ 246, "io_destroy" },
{ 247, "io_getevents" },
{ 248, "io_submit" },
{ 249, "io_cancel" },
{ 250, "fadvise64" },
{ 251, "unused" },
{ 252, "exit_group", exitFunc },
{ 253, "lookup_dcookie" },
{ 254, "epoll_create" },
{ 255, "epoll_ctl" },
{ 256, "epoll_wait" },
{ 257, "remap_file_pages" },
{ 258, "set_tid_address", setTidAddressFunc },
{ 259, "timer_create" },
{ 260, "timer_settime" },
{ 261, "timer_gettime" },
{ 262, "timer_getoverrun" },
{ 263, "timer_delete" },
{ 264, "clock_settime" },
{ 265, "clock_gettime", clock_gettimeFunc<X86Linux32> },
{ 266, "clock_getres" },
{ 267, "clock_nanosleep" },
{ 268, "statfs64" },
{ 269, "fstatfs64" },
{ 270, "tgkill", tgkillFunc<X86Linux32> },
{ 271, "utimes" },
{ 272, "fadvise64_64" },
{ 273, "vserver" },
{ 274, "mbind" },
{ 275, "get_mempolicy", ignoreFunc },
{ 276, "set_mempolicy" },
{ 277, "mq_open" },
{ 278, "mq_unlink" },
{ 279, "mq_timedsend" },
{ 280, "mq_timedreceive" },
{ 281, "mq_notify" },
{ 282, "mq_getsetattr" },
{ 283, "kexec_load" },
{ 284, "waitid" },
{ 285, "sys_setaltroot" },
{ 286, "add_key" },
{ 287, "request_key" },
{ 288, "keyctl" },
{ 289, "ioprio_set" },
{ 290, "ioprio_get" },
{ 291, "inotify_init" },
{ 292, "inotify_add_watch" },
{ 293, "inotify_rm_watch" },
{ 294, "migrate_pages" },
{ 295, "openat", openatFunc<X86Linux32> },
{ 296, "mkdirat" },
{ 297, "mknodat" },
{ 298, "fchownat" },
{ 299, "futimesat" },
{ 300, "fstatat64" },
{ 301, "unlinkat" },
{ 302, "renameat" },
{ 303, "linkat" },
{ 304, "symlinkat" },
{ 305, "readlinkat", readlinkFunc },
{ 306, "fchmodat" },
{ 307, "faccessat" },
{ 308, "pselect6" },
{ 309, "ppoll" },
{ 310, "unshare" },
{ 311, "set_robust_list", ignoreFunc },
{ 312, "get_robust_list", ignoreFunc },
{ 313, "splice" },
{ 314, "sync_file_range" },
{ 315, "tee" },
{ 316, "vmsplice" },
{ 317, "move_pages" },
{ 318, "getcpu" },
{ 319, "epoll_pwait" },
{ 320, "utimensat" },
{ 321, "signalfd" },
{ 322, "timerfd" },
{ 323, "eventfd", eventfdFunc<X86Linux32> }
};
void
I386LinuxProcess::syscall(ThreadContext *tc, Fault *fault)
{
I386Process::syscall(tc, fault);
PCState pc = tc->pcState();
Addr eip = pc.pc();
if (eip >= vsyscallPage.base &&
eip < vsyscallPage.base + vsyscallPage.size) {
pc.npc(vsyscallPage.base + vsyscallPage.vsysexitOffset);
tc->pcState(pc);
}
syscallDescs32.get(tc->readIntReg(INTREG_RAX))->doSyscall(tc, fault);
}
void
I386LinuxProcess::clone(ThreadContext *old_tc, ThreadContext *new_tc,
Process *process, RegVal flags)
{
I386Process::clone(old_tc, new_tc, (I386Process*)process, flags);
}
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