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Merge zizzer:/bk/m5 into isabel.reinhardt.house:/z/stever/bk/m5

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extra : convert_revision : d66ebc598fdcfc9477ea5a1e455b21d7b9e56936
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Steve Reinhardt 2003-12-01 19:34:51 -08:00
parent 5b24b5a5c5 7976794aad
commit 745f0044cd
19 changed files with 2621 additions and 1012 deletions
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arch/alpha/alpha_linux_process.cc Normal file
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/*
* Copyright (c) 2003 The Regents of The University of Michigan
* All rights reserved.
*
* 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 <errno.h>
#include <unistd.h>
#include <fcntl.h> // for host open() flags
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h> // for memset()
#include <dirent.h>
#include "sim/host.hh"
#include "cpu/base_cpu.hh"
#include "mem/functional_mem/functional_memory.hh"
#include "sim/process.hh"
#include "cpu/exec_context.hh"
#include "sim/fake_syscall.hh"
#include "sim/sim_events.hh"
#include "sim/syscall_emul.hh"
#include "arch/alpha/alpha_common_syscall_emul.hh"
#include "sim/universe.hh" // for curTick & ticksPerSecond
#include "arch/alpha/alpha_linux_process.hh"
#include "base/trace.hh"
using namespace std;
class Linux {
public:
//
// basic Linux types
//
typedef uint64_t size_t;
typedef uint64_t off_t;
typedef int64_t time_t;
typedef uint32_t uid_t;
typedef uint32_t gid_t;
// open(2) flags
static const int TGT_O_RDONLY = 00000000;
static const int TGT_O_WRONLY = 00000001;
static const int TGT_O_RDWR = 00000002;
static const int TGT_O_NONBLOCK = 00000004;
static const int TGT_O_APPEND = 00000010;
static const int TGT_O_CREAT = 00001000;
static const int TGT_O_TRUNC = 00002000;
static const int TGT_O_EXCL = 00004000;
static const int TGT_O_NOCTTY = 00010000;
static const int TGT_O_SYNC = 00040000;
static const int TGT_O_DRD = 00100000;
static const int TGT_O_DIRECTIO = 00200000;
static const int TGT_O_CACHE = 00400000;
static const int TGT_O_DSYNC = 02000000;
static const int TGT_O_RSYNC = 04000000;
static OpenFlagTransTable openFlagTable[];
static const int NUM_OPEN_FLAGS;
//
// Stat buffer.
//
struct tgt_stat {
uint32_t st_dev;
uint32_t st_ino;
uint32_t st_mode;
uint32_t st_nlink;
uint32_t st_uid;
uint32_t st_gid;
uint32_t st_rdev;
int64_t st_size;
uint64_t st_atimeX;
uint64_t st_mtimeX;
uint64_t st_ctimeX;
uint32_t st_blksize;
int32_t st_blocks;
uint32_t st_flags;
uint32_t st_gen;
};
//
// for uname()
//
static const int _SYS_NMLN = 65;
struct utsname {
char sysname[_SYS_NMLN];
char nodename[_SYS_NMLN];
char release[_SYS_NMLN];
char version[_SYS_NMLN];
char machine[_SYS_NMLN];
};
//
// for ioctl()
//
static const unsigned TIOCGETP = 0x40067408;
static const unsigned TIOCSETP = 0x80067409;
static const unsigned TIOCSETN = 0x8006740a;
static const unsigned TIOCSETC = 0x80067411;
static const unsigned TIOCGETC = 0x40067412;
static const unsigned FIONREAD = 0x4004667f;
static const unsigned TIOCISATTY = 0x2000745e;
//
// for getrlimit()
//
enum rlimit_resources {
RLIMIT_CPU = 0,
RLIMIT_FSIZE = 1,
RLIMIT_DATA = 2,
RLIMIT_STACK = 3,
RLIMIT_CORE = 4,
RLIMIT_RSS = 5,
RLIMIT_NOFILE = 6,
RLIMIT_AS = 7,
RLIMIT_VMEM = 7,
RLIMIT_NPROC = 8,
RLIMIT_MEMLOCK = 9,
RLIMIT_LOCKS = 10
};
struct rlimit {
uint64_t rlim_cur; // soft limit
uint64_t rlim_max; // hard limit
};
//
// for mmap()
//
static const unsigned TGT_MAP_ANONYMOUS = 0x10;
//
// for gettimeofday
//
struct timeval {
int64_t tv_sec;
int64_t tv_usec;
};
//
// for getrusage
//
static const int RUSAGE_SELF = 0;
static const int RUSAGE_CHILDREN = -1;
static const int RUSAGE_BOTH = -2;
struct rusage {
struct timeval ru_utime; // user time used
struct timeval ru_stime; // system time used
int64_t ru_maxrss;
int64_t ru_ixrss; // integral shared memory size
int64_t ru_idrss; // integral unshared data "
int64_t ru_isrss; // integral unshared stack "
int64_t ru_minflt; // page reclaims - total vmfaults
int64_t ru_majflt; // page faults
int64_t ru_nswap; // swaps
int64_t ru_inblock; // block input operations
int64_t ru_oublock; // block output operations
int64_t ru_msgsnd; // messages sent
int64_t ru_msgrcv; // messages received
int64_t ru_nsignals; // signals received
int64_t ru_nvcsw; // voluntary context switches
int64_t ru_nivcsw; // involuntary "
};
static
void
copyOutStatBuf(FunctionalMemory *mem, Addr addr, struct stat *host)
{
TypedBufferArg<Linux::tgt_stat> tgt(addr);
tgt->st_dev = host->st_dev;
tgt->st_ino = host->st_ino;
tgt->st_mode = host->st_mode;
tgt->st_nlink = host->st_nlink;
tgt->st_uid = host->st_uid;
tgt->st_gid = host->st_gid;
tgt->st_rdev = host->st_rdev;
tgt->st_size = host->st_size;
tgt->st_atimeX = host->st_atime;
tgt->st_mtimeX = host->st_mtime;
tgt->st_ctimeX = host->st_ctime;
tgt->st_blksize = host->st_blksize;
tgt->st_blocks = host->st_blocks;
tgt.copyOut(mem);
}
static const char *hostname;
static
int
unameFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
TypedBufferArg<Linux::utsname> name(xc->getSyscallArg(0));
strcpy(name->sysname, "Linux");
strcpy(name->nodename, hostname);
strcpy(name->release, "2.4.20");
strcpy(name->version, "#1 Mon Aug 18 11:32:15 EDT 2003");
strcpy(name->machine, "alpha");
name.copyOut(xc->mem);
return 0;
}
static
int
osf_getsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
unsigned op = xc->getSyscallArg(0);
// unsigned nbytes = xc->getSyscallArg(2);
switch (op) {
case 45: { // GSI_IEEE_FP_CONTROL
TypedBufferArg<uint64_t> fpcr(xc->getSyscallArg(1));
// I don't think this exactly matches the HW FPCR
*fpcr = 0;
fpcr.copyOut(xc->mem);
return 1;
}
default:
cerr << "osf_getsysinfo: unknown op " << op << endl;
abort();
break;
}
return 0;
}
static
int
osf_setsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
unsigned op = xc->getSyscallArg(0);
// unsigned nbytes = xc->getSyscallArg(2);
switch (op) {
case 14: { // SSI_IEEE_FP_CONTROL
TypedBufferArg<uint64_t> fpcr(xc->getSyscallArg(1));
// I don't think this exactly matches the HW FPCR
fpcr.copyIn(xc->mem);
DPRINTFR(SyscallVerbose, "osf_setsysinfo(SSI_IEEE_FP_CONTROL): "
" setting FPCR to 0x%x\n", *(uint64_t*)fpcr);
return 1;
}
default:
cerr << "osf_getsysinfo: unknown op " << op << endl;
abort();
break;
}
return 0;
}
static
int
fcntlFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
int fd = xc->getSyscallArg(0);
if (fd < 0 || process->sim_fd(fd) < 0)
return -EBADF;
int cmd = xc->getSyscallArg(1);
switch (cmd) {
case 0: // F_DUPFD
// if we really wanted to support this, we'd need to do it
// in the target fd space.
warn("fcntl(%d, F_DUPFD) not supported, error returned\n", fd);
return -EMFILE;
case 1: // F_GETFD (get close-on-exec flag)
case 2: // F_SETFD (set close-on-exec flag)
return 0;
case 3: // F_GETFL (get file flags)
case 4: // F_SETFL (set file flags)
// not sure if this is totally valid, but we'll pass it through
// to the underlying OS
warn("fcntl(%d, %d) passed through to host\n", fd, cmd);
return fcntl(process->sim_fd(fd), cmd);
// return 0;
case 7: // F_GETLK (get lock)
case 8: // F_SETLK (set lock)
case 9: // F_SETLKW (set lock and wait)
// don't mess with file locking... just act like it's OK
warn("File lock call (fcntl(%d, %d)) ignored.\n", fd, cmd);
return 0;
default:
warn("Unknown fcntl command %d\n", cmd);
return 0;
}
}
static SyscallDesc syscallDescs[];
static const int Num_Syscall_Descs;
static const int Max_Syscall_Desc;
static
void
doSyscall(int callnum, Process *process, ExecContext *xc)
{
if (callnum < 0 || callnum > Max_Syscall_Desc) {
fatal("Syscall %d out of range", callnum);
}
SyscallDesc *desc = &syscallDescs[callnum];
desc->doSyscall(callnum, process, xc);
}
}; // class Linux
// open(2) flags translation table
OpenFlagTransTable Linux::openFlagTable[] = {
/* target flag */ /* host flag */
#ifdef _MSC_VER
{ Linux::TGT_O_RDONLY, _O_RDONLY },
{ Linux::TGT_O_WRONLY, _O_WRONLY },
{ Linux::TGT_O_RDWR, _O_RDWR },
{ Linux::TGT_O_APPEND, _O_APPEND },
{ Linux::TGT_O_CREAT, _O_CREAT },
{ Linux::TGT_O_TRUNC, _O_TRUNC },
{ Linux::TGT_O_EXCL, _O_EXCL },
#ifdef _O_NONBLOCK
{ Linux::TGT_O_NONBLOCK, _O_NONBLOCK },
#endif
#ifdef _O_NOCTTY
{ Linux::TGT_O_NOCTTY, _O_NOCTTY },
#endif
#ifdef _O_SYNC
{ Linux::TGT_O_SYNC, _O_SYNC },
#endif
#else /* !_MSC_VER */
{ Linux::TGT_O_RDONLY, O_RDONLY },
{ Linux::TGT_O_WRONLY, O_WRONLY },
{ Linux::TGT_O_RDWR, O_RDWR },
{ Linux::TGT_O_APPEND, O_APPEND },
{ Linux::TGT_O_CREAT, O_CREAT },
{ Linux::TGT_O_TRUNC, O_TRUNC },
{ Linux::TGT_O_EXCL, O_EXCL },
{ Linux::TGT_O_NONBLOCK, O_NONBLOCK },
{ Linux::TGT_O_NOCTTY, O_NOCTTY },
#ifdef O_SYNC
{ Linux::TGT_O_SYNC, O_SYNC },
#endif
#endif /* _MSC_VER */
};
const int Linux::NUM_OPEN_FLAGS = (sizeof(Linux::openFlagTable)/sizeof(Linux::openFlagTable[0]));
const char *Linux::hostname = "m5.eecs.umich.edu";
SyscallDesc Linux::syscallDescs[] = {
/* 0 */ SyscallDesc("osf_syscall", unimplementedFunc),
/* 1 */ SyscallDesc("exit", exitFunc),
/* 2 */ SyscallDesc("fork", unimplementedFunc),
/* 3 */ SyscallDesc("read", readFunc),
/* 4 */ SyscallDesc("write", writeFunc),
/* 5 */ SyscallDesc("osf_old_open", unimplementedFunc),
/* 6 */ SyscallDesc("close", closeFunc),
/* 7 */ SyscallDesc("osf_wait4", unimplementedFunc),
/* 8 */ SyscallDesc("osf_old_creat", unimplementedFunc),
/* 9 */ SyscallDesc("link", unimplementedFunc),
/* 10 */ SyscallDesc("unlink", unimplementedFunc),
/* 11 */ SyscallDesc("osf_execve", unimplementedFunc),
/* 12 */ SyscallDesc("chdir", unimplementedFunc),
/* 13 */ SyscallDesc("fchdir", unimplementedFunc),
/* 14 */ SyscallDesc("mknod", unimplementedFunc),
/* 15 */ SyscallDesc("chmod", unimplementedFunc),
/* 16 */ SyscallDesc("chown", unimplementedFunc),
/* 17 */ SyscallDesc("brk", obreakFunc),
/* 18 */ SyscallDesc("osf_getfsstat", unimplementedFunc),
/* 19 */ SyscallDesc("lseek", lseekFunc),
/* 20 */ SyscallDesc("getxpid", getpidFunc),
/* 21 */ SyscallDesc("osf_mount", unimplementedFunc),
/* 22 */ SyscallDesc("umount", unimplementedFunc),
/* 23 */ SyscallDesc("setuid", setuidFunc),
/* 24 */ SyscallDesc("getxuid", getuidFunc),
/* 25 */ SyscallDesc("exec_with_loader", unimplementedFunc),
/* 26 */ SyscallDesc("osf_ptrace", unimplementedFunc),
/* 27 */ SyscallDesc("osf_nrecvmsg", unimplementedFunc),
/* 28 */ SyscallDesc("osf_nsendmsg", unimplementedFunc),
/* 29 */ SyscallDesc("osf_nrecvfrom", unimplementedFunc),
/* 30 */ SyscallDesc("osf_naccept", unimplementedFunc),
/* 31 */ SyscallDesc("osf_ngetpeername", unimplementedFunc),
/* 32 */ SyscallDesc("osf_ngetsockname", unimplementedFunc),
/* 33 */ SyscallDesc("access", unimplementedFunc),
/* 34 */ SyscallDesc("osf_chflags", unimplementedFunc),
/* 35 */ SyscallDesc("osf_fchflags", unimplementedFunc),
/* 36 */ SyscallDesc("sync", unimplementedFunc),
/* 37 */ SyscallDesc("kill", unimplementedFunc),
/* 38 */ SyscallDesc("osf_old_stat", unimplementedFunc),
/* 39 */ SyscallDesc("setpgid", unimplementedFunc),
/* 40 */ SyscallDesc("osf_old_lstat", unimplementedFunc),
/* 41 */ SyscallDesc("dup", unimplementedFunc),
/* 42 */ SyscallDesc("pipe", unimplementedFunc),
/* 43 */ SyscallDesc("osf_set_program_attributes", unimplementedFunc),
/* 44 */ SyscallDesc("osf_profil", unimplementedFunc),
/* 45 */ SyscallDesc("open", openFunc<Linux>),
/* 46 */ SyscallDesc("osf_old_sigaction", unimplementedFunc),
/* 47 */ SyscallDesc("getxgid", getgidFunc),
/* 48 */ SyscallDesc("osf_sigprocmask", ignoreFunc),
/* 49 */ SyscallDesc("osf_getlogin", unimplementedFunc),
/* 50 */ SyscallDesc("osf_setlogin", unimplementedFunc),
/* 51 */ SyscallDesc("acct", unimplementedFunc),
/* 52 */ SyscallDesc("sigpending", unimplementedFunc),
/* 53 */ SyscallDesc("osf_classcntl", unimplementedFunc),
/* 54 */ SyscallDesc("ioctl", ioctlFunc<Linux>),
/* 55 */ SyscallDesc("osf_reboot", unimplementedFunc),
/* 56 */ SyscallDesc("osf_revoke", unimplementedFunc),
/* 57 */ SyscallDesc("symlink", unimplementedFunc),
/* 58 */ SyscallDesc("readlink", unimplementedFunc),
/* 59 */ SyscallDesc("execve", unimplementedFunc),
/* 60 */ SyscallDesc("umask", unimplementedFunc),
/* 61 */ SyscallDesc("chroot", unimplementedFunc),
/* 62 */ SyscallDesc("osf_old_fstat", unimplementedFunc),
/* 63 */ SyscallDesc("getpgrp", unimplementedFunc),
/* 64 */ SyscallDesc("getpagesize", getpagesizeFunc),
/* 65 */ SyscallDesc("osf_mremap", unimplementedFunc),
/* 66 */ SyscallDesc("vfork", unimplementedFunc),
/* 67 */ SyscallDesc("stat", statFunc<Linux>),
/* 68 */ SyscallDesc("lstat", lstatFunc<Linux>),
/* 69 */ SyscallDesc("osf_sbrk", unimplementedFunc),
/* 70 */ SyscallDesc("osf_sstk", unimplementedFunc),
/* 71 */ SyscallDesc("mmap", mmapFunc<Linux>),
/* 72 */ SyscallDesc("osf_old_vadvise", unimplementedFunc),
/* 73 */ SyscallDesc("munmap", munmapFunc),
/* 74 */ SyscallDesc("mprotect", ignoreFunc),
/* 75 */ SyscallDesc("madvise", unimplementedFunc),
/* 76 */ SyscallDesc("vhangup", unimplementedFunc),
/* 77 */ SyscallDesc("osf_kmodcall", unimplementedFunc),
/* 78 */ SyscallDesc("osf_mincore", unimplementedFunc),
/* 79 */ SyscallDesc("getgroups", unimplementedFunc),
/* 80 */ SyscallDesc("setgroups", unimplementedFunc),
/* 81 */ SyscallDesc("osf_old_getpgrp", unimplementedFunc),
/* 82 */ SyscallDesc("setpgrp", unimplementedFunc),
/* 83 */ SyscallDesc("osf_setitimer", unimplementedFunc),
/* 84 */ SyscallDesc("osf_old_wait", unimplementedFunc),
/* 85 */ SyscallDesc("osf_table", unimplementedFunc),
/* 86 */ SyscallDesc("osf_getitimer", unimplementedFunc),
/* 87 */ SyscallDesc("gethostname", gethostnameFunc),
/* 88 */ SyscallDesc("sethostname", unimplementedFunc),
/* 89 */ SyscallDesc("getdtablesize", unimplementedFunc),
/* 90 */ SyscallDesc("dup2", unimplementedFunc),
/* 91 */ SyscallDesc("fstat", fstatFunc<Linux>),
/* 92 */ SyscallDesc("fcntl", fcntlFunc),
/* 93 */ SyscallDesc("osf_select", unimplementedFunc),
/* 94 */ SyscallDesc("poll", unimplementedFunc),
/* 95 */ SyscallDesc("fsync", unimplementedFunc),
/* 96 */ SyscallDesc("setpriority", unimplementedFunc),
/* 97 */ SyscallDesc("socket", unimplementedFunc),
/* 98 */ SyscallDesc("connect", unimplementedFunc),
/* 99 */ SyscallDesc("accept", unimplementedFunc),
/* 100 */ SyscallDesc("getpriority", unimplementedFunc),
/* 101 */ SyscallDesc("send", unimplementedFunc),
/* 102 */ SyscallDesc("recv", unimplementedFunc),
/* 103 */ SyscallDesc("sigreturn", unimplementedFunc),
/* 104 */ SyscallDesc("bind", unimplementedFunc),
/* 105 */ SyscallDesc("setsockopt", unimplementedFunc),
/* 106 */ SyscallDesc("listen", unimplementedFunc),
/* 107 */ SyscallDesc("osf_plock", unimplementedFunc),
/* 108 */ SyscallDesc("osf_old_sigvec", unimplementedFunc),
/* 109 */ SyscallDesc("osf_old_sigblock", unimplementedFunc),
/* 110 */ SyscallDesc("osf_old_sigsetmask", unimplementedFunc),
/* 111 */ SyscallDesc("sigsuspend", unimplementedFunc),
/* 112 */ SyscallDesc("osf_sigstack", ignoreFunc),
/* 113 */ SyscallDesc("recvmsg", unimplementedFunc),
/* 114 */ SyscallDesc("sendmsg", unimplementedFunc),
/* 115 */ SyscallDesc("osf_old_vtrace", unimplementedFunc),
/* 116 */ SyscallDesc("osf_gettimeofday", unimplementedFunc),
/* 117 */ SyscallDesc("osf_getrusage", unimplementedFunc),
/* 118 */ SyscallDesc("getsockopt", unimplementedFunc),
/* 119 */ SyscallDesc("numa_syscalls", unimplementedFunc),
/* 120 */ SyscallDesc("readv", unimplementedFunc),
/* 121 */ SyscallDesc("writev", unimplementedFunc),
/* 122 */ SyscallDesc("osf_settimeofday", unimplementedFunc),
/* 123 */ SyscallDesc("fchown", unimplementedFunc),
/* 124 */ SyscallDesc("fchmod", unimplementedFunc),
/* 125 */ SyscallDesc("recvfrom", unimplementedFunc),
/* 126 */ SyscallDesc("setreuid", unimplementedFunc),
/* 127 */ SyscallDesc("setregid", unimplementedFunc),
/* 128 */ SyscallDesc("rename", unimplementedFunc),
/* 129 */ SyscallDesc("truncate", unimplementedFunc),
/* 130 */ SyscallDesc("ftruncate", unimplementedFunc),
/* 131 */ SyscallDesc("flock", unimplementedFunc),
/* 132 */ SyscallDesc("setgid", unimplementedFunc),
/* 133 */ SyscallDesc("sendto", unimplementedFunc),
/* 134 */ SyscallDesc("shutdown", unimplementedFunc),
/* 135 */ SyscallDesc("socketpair", unimplementedFunc),
/* 136 */ SyscallDesc("mkdir", unimplementedFunc),
/* 137 */ SyscallDesc("rmdir", unimplementedFunc),
/* 138 */ SyscallDesc("osf_utimes", unimplementedFunc),
/* 139 */ SyscallDesc("osf_old_sigreturn", unimplementedFunc),
/* 140 */ SyscallDesc("osf_adjtime", unimplementedFunc),
/* 141 */ SyscallDesc("getpeername", unimplementedFunc),
/* 142 */ SyscallDesc("osf_gethostid", unimplementedFunc),
/* 143 */ SyscallDesc("osf_sethostid", unimplementedFunc),
/* 144 */ SyscallDesc("getrlimit", getrlimitFunc<Linux>),
/* 145 */ SyscallDesc("setrlimit", unimplementedFunc),
/* 146 */ SyscallDesc("osf_old_killpg", unimplementedFunc),
/* 147 */ SyscallDesc("setsid", unimplementedFunc),
/* 148 */ SyscallDesc("quotactl", unimplementedFunc),
/* 149 */ SyscallDesc("osf_oldquota", unimplementedFunc),
/* 150 */ SyscallDesc("getsockname", unimplementedFunc),
/* 151 */ SyscallDesc("osf_pread", unimplementedFunc),
/* 152 */ SyscallDesc("osf_pwrite", unimplementedFunc),
/* 153 */ SyscallDesc("osf_pid_block", unimplementedFunc),
/* 154 */ SyscallDesc("osf_pid_unblock", unimplementedFunc),
/* 155 */ SyscallDesc("osf_signal_urti", unimplementedFunc),
/* 156 */ SyscallDesc("sigaction", ignoreFunc),
/* 157 */ SyscallDesc("osf_sigwaitprim", unimplementedFunc),
/* 158 */ SyscallDesc("osf_nfssvc", unimplementedFunc),
/* 159 */ SyscallDesc("osf_getdirentries", unimplementedFunc),
/* 160 */ SyscallDesc("osf_statfs", unimplementedFunc),
/* 161 */ SyscallDesc("osf_fstatfs", unimplementedFunc),
/* 162 */ SyscallDesc("unknown #162", unimplementedFunc),
/* 163 */ SyscallDesc("osf_async_daemon", unimplementedFunc),
/* 164 */ SyscallDesc("osf_getfh", unimplementedFunc),
/* 165 */ SyscallDesc("osf_getdomainname", unimplementedFunc),
/* 166 */ SyscallDesc("setdomainname", unimplementedFunc),
/* 167 */ SyscallDesc("unknown #167", unimplementedFunc),
/* 168 */ SyscallDesc("unknown #168", unimplementedFunc),
/* 169 */ SyscallDesc("osf_exportfs", unimplementedFunc),
/* 170 */ SyscallDesc("unknown #170", unimplementedFunc),
/* 171 */ SyscallDesc("unknown #171", unimplementedFunc),
/* 172 */ SyscallDesc("unknown #172", unimplementedFunc),
/* 173 */ SyscallDesc("unknown #173", unimplementedFunc),
/* 174 */ SyscallDesc("unknown #174", unimplementedFunc),
/* 175 */ SyscallDesc("unknown #175", unimplementedFunc),
/* 176 */ SyscallDesc("unknown #176", unimplementedFunc),
/* 177 */ SyscallDesc("unknown #177", unimplementedFunc),
/* 178 */ SyscallDesc("unknown #178", unimplementedFunc),
/* 179 */ SyscallDesc("unknown #179", unimplementedFunc),
/* 180 */ SyscallDesc("unknown #180", unimplementedFunc),
/* 181 */ SyscallDesc("osf_alt_plock", unimplementedFunc),
/* 182 */ SyscallDesc("unknown #182", unimplementedFunc),
/* 183 */ SyscallDesc("unknown #183", unimplementedFunc),
/* 184 */ SyscallDesc("osf_getmnt", unimplementedFunc),
/* 185 */ SyscallDesc("unknown #185", unimplementedFunc),
/* 186 */ SyscallDesc("unknown #186", unimplementedFunc),
/* 187 */ SyscallDesc("osf_alt_sigpending", unimplementedFunc),
/* 188 */ SyscallDesc("osf_alt_setsid", unimplementedFunc),
/* 189 */ SyscallDesc("unknown #189", unimplementedFunc),
/* 190 */ SyscallDesc("unknown #190", unimplementedFunc),
/* 191 */ SyscallDesc("unknown #191", unimplementedFunc),
/* 192 */ SyscallDesc("unknown #192", unimplementedFunc),
/* 193 */ SyscallDesc("unknown #193", unimplementedFunc),
/* 194 */ SyscallDesc("unknown #194", unimplementedFunc),
/* 195 */ SyscallDesc("unknown #195", unimplementedFunc),
/* 196 */ SyscallDesc("unknown #196", unimplementedFunc),
/* 197 */ SyscallDesc("unknown #197", unimplementedFunc),
/* 198 */ SyscallDesc("unknown #198", unimplementedFunc),
/* 199 */ SyscallDesc("osf_swapon", unimplementedFunc),
/* 200 */ SyscallDesc("msgctl", unimplementedFunc),
/* 201 */ SyscallDesc("msgget", unimplementedFunc),
/* 202 */ SyscallDesc("msgrcv", unimplementedFunc),
/* 203 */ SyscallDesc("msgsnd", unimplementedFunc),
/* 204 */ SyscallDesc("semctl", unimplementedFunc),
/* 205 */ SyscallDesc("semget", unimplementedFunc),
/* 206 */ SyscallDesc("semop", unimplementedFunc),
/* 207 */ SyscallDesc("osf_utsname", unimplementedFunc),
/* 208 */ SyscallDesc("lchown", unimplementedFunc),
/* 209 */ SyscallDesc("osf_shmat", unimplementedFunc),
/* 210 */ SyscallDesc("shmctl", unimplementedFunc),
/* 211 */ SyscallDesc("shmdt", unimplementedFunc),
/* 212 */ SyscallDesc("shmget", unimplementedFunc),
/* 213 */ SyscallDesc("osf_mvalid", unimplementedFunc),
/* 214 */ SyscallDesc("osf_getaddressconf", unimplementedFunc),
/* 215 */ SyscallDesc("osf_msleep", unimplementedFunc),
/* 216 */ SyscallDesc("osf_mwakeup", unimplementedFunc),
/* 217 */ SyscallDesc("msync", unimplementedFunc),
/* 218 */ SyscallDesc("osf_signal", unimplementedFunc),
/* 219 */ SyscallDesc("osf_utc_gettime", unimplementedFunc),
/* 220 */ SyscallDesc("osf_utc_adjtime", unimplementedFunc),
/* 221 */ SyscallDesc("unknown #221", unimplementedFunc),
/* 222 */ SyscallDesc("osf_security", unimplementedFunc),
/* 223 */ SyscallDesc("osf_kloadcall", unimplementedFunc),
/* 224 */ SyscallDesc("unknown #224", unimplementedFunc),
/* 225 */ SyscallDesc("unknown #225", unimplementedFunc),
/* 226 */ SyscallDesc("unknown #226", unimplementedFunc),
/* 227 */ SyscallDesc("unknown #227", unimplementedFunc),
/* 228 */ SyscallDesc("unknown #228", unimplementedFunc),
/* 229 */ SyscallDesc("unknown #229", unimplementedFunc),
/* 230 */ SyscallDesc("unknown #230", unimplementedFunc),
/* 231 */ SyscallDesc("unknown #231", unimplementedFunc),
/* 232 */ SyscallDesc("unknown #232", unimplementedFunc),
/* 233 */ SyscallDesc("getpgid", unimplementedFunc),
/* 234 */ SyscallDesc("getsid", unimplementedFunc),
/* 235 */ SyscallDesc("sigaltstack", ignoreFunc),
/* 236 */ SyscallDesc("osf_waitid", unimplementedFunc),
/* 237 */ SyscallDesc("osf_priocntlset", unimplementedFunc),
/* 238 */ SyscallDesc("osf_sigsendset", unimplementedFunc),
/* 239 */ SyscallDesc("osf_set_speculative", unimplementedFunc),
/* 240 */ SyscallDesc("osf_msfs_syscall", unimplementedFunc),
/* 241 */ SyscallDesc("osf_sysinfo", unimplementedFunc),
/* 242 */ SyscallDesc("osf_uadmin", unimplementedFunc),
/* 243 */ SyscallDesc("osf_fuser", unimplementedFunc),
/* 244 */ SyscallDesc("osf_proplist_syscall", unimplementedFunc),
/* 245 */ SyscallDesc("osf_ntp_adjtime", unimplementedFunc),
/* 246 */ SyscallDesc("osf_ntp_gettime", unimplementedFunc),
/* 247 */ SyscallDesc("osf_pathconf", unimplementedFunc),
/* 248 */ SyscallDesc("osf_fpathconf", unimplementedFunc),
/* 249 */ SyscallDesc("unknown #249", unimplementedFunc),
/* 250 */ SyscallDesc("osf_uswitch", unimplementedFunc),
/* 251 */ SyscallDesc("osf_usleep_thread", unimplementedFunc),
/* 252 */ SyscallDesc("osf_audcntl", unimplementedFunc),
/* 253 */ SyscallDesc("osf_audgen", unimplementedFunc),
/* 254 */ SyscallDesc("sysfs", unimplementedFunc),
/* 255 */ SyscallDesc("osf_subsys_info", unimplementedFunc),
/* 256 */ SyscallDesc("osf_getsysinfo", osf_getsysinfoFunc),
/* 257 */ SyscallDesc("osf_setsysinfo", osf_setsysinfoFunc),
/* 258 */ SyscallDesc("osf_afs_syscall", unimplementedFunc),
/* 259 */ SyscallDesc("osf_swapctl", unimplementedFunc),
/* 260 */ SyscallDesc("osf_memcntl", unimplementedFunc),
/* 261 */ SyscallDesc("osf_fdatasync", unimplementedFunc),
/* 262 */ SyscallDesc("unknown #262", unimplementedFunc),
/* 263 */ SyscallDesc("unknown #263", unimplementedFunc),
/* 264 */ SyscallDesc("unknown #264", unimplementedFunc),
/* 265 */ SyscallDesc("unknown #265", unimplementedFunc),
/* 266 */ SyscallDesc("unknown #266", unimplementedFunc),
/* 267 */ SyscallDesc("unknown #267", unimplementedFunc),
/* 268 */ SyscallDesc("unknown #268", unimplementedFunc),
/* 269 */ SyscallDesc("unknown #269", unimplementedFunc),
/* 270 */ SyscallDesc("unknown #270", unimplementedFunc),
/* 271 */ SyscallDesc("unknown #271", unimplementedFunc),
/* 272 */ SyscallDesc("unknown #272", unimplementedFunc),
/* 273 */ SyscallDesc("unknown #273", unimplementedFunc),
/* 274 */ SyscallDesc("unknown #274", unimplementedFunc),
/* 275 */ SyscallDesc("unknown #275", unimplementedFunc),
/* 276 */ SyscallDesc("unknown #276", unimplementedFunc),
/* 277 */ SyscallDesc("unknown #277", unimplementedFunc),
/* 278 */ SyscallDesc("unknown #278", unimplementedFunc),
/* 279 */ SyscallDesc("unknown #279", unimplementedFunc),
/* 280 */ SyscallDesc("unknown #280", unimplementedFunc),
/* 281 */ SyscallDesc("unknown #281", unimplementedFunc),
/* 282 */ SyscallDesc("unknown #282", unimplementedFunc),
/* 283 */ SyscallDesc("unknown #283", unimplementedFunc),
/* 284 */ SyscallDesc("unknown #284", unimplementedFunc),
/* 285 */ SyscallDesc("unknown #285", unimplementedFunc),
/* 286 */ SyscallDesc("unknown #286", unimplementedFunc),
/* 287 */ SyscallDesc("unknown #287", unimplementedFunc),
/* 288 */ SyscallDesc("unknown #288", unimplementedFunc),
/* 289 */ SyscallDesc("unknown #289", unimplementedFunc),
/* 290 */ SyscallDesc("unknown #290", unimplementedFunc),
/* 291 */ SyscallDesc("unknown #291", unimplementedFunc),
/* 292 */ SyscallDesc("unknown #292", unimplementedFunc),
/* 293 */ SyscallDesc("unknown #293", unimplementedFunc),
/* 294 */ SyscallDesc("unknown #294", unimplementedFunc),
/* 295 */ SyscallDesc("unknown #295", unimplementedFunc),
/* 296 */ SyscallDesc("unknown #296", unimplementedFunc),
/* 297 */ SyscallDesc("unknown #297", unimplementedFunc),
/* 298 */ SyscallDesc("unknown #298", unimplementedFunc),
/* 299 */ SyscallDesc("unknown #299", unimplementedFunc),
/*
* Linux-specific system calls begin at 300
*/
/* 300 */ SyscallDesc("bdflush", unimplementedFunc),
/* 301 */ SyscallDesc("sethae", unimplementedFunc),
/* 302 */ SyscallDesc("mount", unimplementedFunc),
/* 303 */ SyscallDesc("old_adjtimex", unimplementedFunc),
/* 304 */ SyscallDesc("swapoff", unimplementedFunc),
/* 305 */ SyscallDesc("getdents", unimplementedFunc),
/* 306 */ SyscallDesc("create_module", unimplementedFunc),
/* 307 */ SyscallDesc("init_module", unimplementedFunc),
/* 308 */ SyscallDesc("delete_module", unimplementedFunc),
/* 309 */ SyscallDesc("get_kernel_syms", unimplementedFunc),
/* 310 */ SyscallDesc("syslog", unimplementedFunc),
/* 311 */ SyscallDesc("reboot", unimplementedFunc),
/* 312 */ SyscallDesc("clone", unimplementedFunc),
/* 313 */ SyscallDesc("uselib", unimplementedFunc),
/* 314 */ SyscallDesc("mlock", unimplementedFunc),
/* 315 */ SyscallDesc("munlock", unimplementedFunc),
/* 316 */ SyscallDesc("mlockall", unimplementedFunc),
/* 317 */ SyscallDesc("munlockall", unimplementedFunc),
/* 318 */ SyscallDesc("sysinfo", unimplementedFunc),
/* 319 */ SyscallDesc("_sysctl", unimplementedFunc),
/* 320 */ SyscallDesc("was sys_idle", unimplementedFunc),
/* 321 */ SyscallDesc("oldumount", unimplementedFunc),
/* 322 */ SyscallDesc("swapon", unimplementedFunc),
/* 323 */ SyscallDesc("times", unimplementedFunc),
/* 324 */ SyscallDesc("personality", unimplementedFunc),
/* 325 */ SyscallDesc("setfsuid", unimplementedFunc),
/* 326 */ SyscallDesc("setfsgid", unimplementedFunc),
/* 327 */ SyscallDesc("ustat", unimplementedFunc),
/* 328 */ SyscallDesc("statfs", unimplementedFunc),
/* 329 */ SyscallDesc("fstatfs", unimplementedFunc),
/* 330 */ SyscallDesc("sched_setparam", unimplementedFunc),
/* 331 */ SyscallDesc("sched_getparam", unimplementedFunc),
/* 332 */ SyscallDesc("sched_setscheduler", unimplementedFunc),
/* 333 */ SyscallDesc("sched_getscheduler", unimplementedFunc),
/* 334 */ SyscallDesc("sched_yield", unimplementedFunc),
/* 335 */ SyscallDesc("sched_get_priority_max", unimplementedFunc),
/* 336 */ SyscallDesc("sched_get_priority_min", unimplementedFunc),
/* 337 */ SyscallDesc("sched_rr_get_interval", unimplementedFunc),
/* 338 */ SyscallDesc("afs_syscall", unimplementedFunc),
/* 339 */ SyscallDesc("uname", unameFunc),
/* 340 */ SyscallDesc("nanosleep", unimplementedFunc),
/* 341 */ SyscallDesc("mremap", unimplementedFunc),
/* 342 */ SyscallDesc("nfsservctl", unimplementedFunc),
/* 343 */ SyscallDesc("setresuid", unimplementedFunc),
/* 344 */ SyscallDesc("getresuid", unimplementedFunc),
/* 345 */ SyscallDesc("pciconfig_read", unimplementedFunc),
/* 346 */ SyscallDesc("pciconfig_write", unimplementedFunc),
/* 347 */ SyscallDesc("query_module", unimplementedFunc),
/* 348 */ SyscallDesc("prctl", unimplementedFunc),
/* 349 */ SyscallDesc("pread", unimplementedFunc),
/* 350 */ SyscallDesc("pwrite", unimplementedFunc),
/* 351 */ SyscallDesc("rt_sigreturn", unimplementedFunc),
/* 352 */ SyscallDesc("rt_sigaction", unimplementedFunc),
/* 353 */ SyscallDesc("rt_sigprocmask", unimplementedFunc),
/* 354 */ SyscallDesc("rt_sigpending", unimplementedFunc),
/* 355 */ SyscallDesc("rt_sigtimedwait", unimplementedFunc),
/* 356 */ SyscallDesc("rt_sigqueueinfo", unimplementedFunc),
/* 357 */ SyscallDesc("rt_sigsuspend", unimplementedFunc),
/* 358 */ SyscallDesc("select", unimplementedFunc),
/* 359 */ SyscallDesc("gettimeofday", gettimeofdayFunc<Linux>),
/* 360 */ SyscallDesc("settimeofday", unimplementedFunc),
/* 361 */ SyscallDesc("getitimer", unimplementedFunc),
/* 362 */ SyscallDesc("setitimer", unimplementedFunc),
/* 363 */ SyscallDesc("utimes", unimplementedFunc),
/* 364 */ SyscallDesc("getrusage", getrusageFunc<Linux>),
/* 365 */ SyscallDesc("wait4", unimplementedFunc),
/* 366 */ SyscallDesc("adjtimex", unimplementedFunc),
/* 367 */ SyscallDesc("getcwd", unimplementedFunc),
/* 368 */ SyscallDesc("capget", unimplementedFunc),
/* 369 */ SyscallDesc("capset", unimplementedFunc),
/* 370 */ SyscallDesc("sendfile", unimplementedFunc),
/* 371 */ SyscallDesc("setresgid", unimplementedFunc),
/* 372 */ SyscallDesc("getresgid", unimplementedFunc),
/* 373 */ SyscallDesc("dipc", unimplementedFunc),
/* 374 */ SyscallDesc("pivot_root", unimplementedFunc),
/* 375 */ SyscallDesc("mincore", unimplementedFunc),
/* 376 */ SyscallDesc("pciconfig_iobase", unimplementedFunc),
/* 377 */ SyscallDesc("getdents64", unimplementedFunc),
/* 378 */ SyscallDesc("gettid", unimplementedFunc),
/* 379 */ SyscallDesc("readahead", unimplementedFunc),
/* 380 */ SyscallDesc("security", unimplementedFunc),
/* 381 */ SyscallDesc("tkill", unimplementedFunc),
/* 382 */ SyscallDesc("setxattr", unimplementedFunc),
/* 383 */ SyscallDesc("lsetxattr", unimplementedFunc),
/* 384 */ SyscallDesc("fsetxattr", unimplementedFunc),
/* 385 */ SyscallDesc("getxattr", unimplementedFunc),
/* 386 */ SyscallDesc("lgetxattr", unimplementedFunc),
/* 387 */ SyscallDesc("fgetxattr", unimplementedFunc),
/* 388 */ SyscallDesc("listxattr", unimplementedFunc),
/* 389 */ SyscallDesc("llistxattr", unimplementedFunc),
/* 390 */ SyscallDesc("flistxattr", unimplementedFunc),
/* 391 */ SyscallDesc("removexattr", unimplementedFunc),
/* 392 */ SyscallDesc("lremovexattr", unimplementedFunc),
/* 393 */ SyscallDesc("fremovexattr", unimplementedFunc),
};
const int Linux::Num_Syscall_Descs =
sizeof(Linux::syscallDescs) / sizeof(SyscallDesc);
const int Linux::Max_Syscall_Desc = Linux::Num_Syscall_Descs - 1;
void
AlphaLinuxProcess::syscall(ExecContext *xc)
{
num_syscalls++;
int64_t callnum = xc->regs.intRegFile[ReturnValueReg];
Linux::doSyscall(callnum, this, xc);
}
AlphaLinuxProcess::AlphaLinuxProcess(const std::string &name,
ObjectFile *objFile,
int stdin_fd,
int stdout_fd,
int stderr_fd,
std::vector<std::string> &argv,
std::vector<std::string> &envp)
: LiveProcess(name, objFile, stdin_fd, stdout_fd, stderr_fd, argv, envp)
{
}

47
arch/alpha/alpha_linux_process.hh Normal file
View file

@ -0,0 +1,47 @@
/*
* Copyright (c) 2003 The Regents of The University of Michigan
* All rights reserved.
*
* 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.
*/
#ifndef __ALPHA_LINUX_PROCESS_HH__
#define __ALPHA_LINUX_PROCESS_HH__
#include "sim/process.hh"
class AlphaLinuxProcess : public LiveProcess
{
public:
AlphaLinuxProcess(const std::string &name,
ObjectFile *objFile,
int stdin_fd, int stdout_fd, int stderr_fd,
std::vector<std::string> &argv,
std::vector<std::string> &envp);
virtual void syscall(ExecContext *xc);
};
#endif // __ALPHA_LINUX_PROCESS_HH__

1843
arch/alpha/fake_syscall.cc → arch/alpha/alpha_tru64_process.cc
View file

File diff suppressed because it is too large Load diff

47
arch/alpha/alpha_tru64_process.hh Normal file
View file

@ -0,0 +1,47 @@
/*
* Copyright (c) 2003 The Regents of The University of Michigan
* All rights reserved.
*
* 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.
*/
#ifndef __ALPHA_TRU64_PROCESS_HH__
#define __ALPHA_TRU64_PROCESS_HH__
#include "sim/process.hh"
class AlphaTru64Process : public LiveProcess
{
public:
AlphaTru64Process(const std::string &name,
ObjectFile *objFile,
int stdin_fd, int stdout_fd, int stderr_fd,
std::vector<std::string> &argv,
std::vector<std::string> &envp);
virtual void syscall(ExecContext *xc);
};
#endif // __ALPHA_TRU64_PROCESS_HH__

9
base/loader/aout_object.cc
View file

@ -43,7 +43,9 @@ ObjectFile *
AoutObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
{
if (!N_BADMAG(*(aout_exechdr *)data)) {
return new AoutObject(fname, fd, len, data);
// right now this is only used for Alpha PAL code
return new AoutObject(fname, fd, len, data,
ObjectFile::Alpha, ObjectFile::UnknownOpSys);
}
else {
return NULL;
@ -52,8 +54,9 @@ AoutObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
AoutObject::AoutObject(const string &_filename, int _fd,
size_t _len, uint8_t *_data)
: ObjectFile(_filename, _fd, _len, _data)
size_t _len, uint8_t *_data,
Arch _arch, OpSys _opSys)
: ObjectFile(_filename, _fd, _len, _data, _arch, _opSys)
{
execHdr = (aout_exechdr *)fileData;

3
base/loader/aout_object.hh
View file

@ -40,7 +40,8 @@ class AoutObject : public ObjectFile
aout_exechdr *execHdr;
AoutObject(const std::string &_filename, int _fd,
size_t _len, uint8_t *_data);
size_t _len, uint8_t *_data,
Arch _arch, OpSys _opSys);
public:
virtual ~AoutObject() {}

8
base/loader/ecoff_object.cc
View file

@ -46,7 +46,8 @@ EcoffObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
{
if (((ecoff_filehdr *)data)->f_magic == ECOFF_MAGIC_ALPHA) {
// it's Alpha ECOFF
return new EcoffObject(fname, fd, len, data);
return new EcoffObject(fname, fd, len, data,
ObjectFile::Alpha, ObjectFile::Tru64);
}
else {
return NULL;
@ -55,8 +56,9 @@ EcoffObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
EcoffObject::EcoffObject(const string &_filename, int _fd,
size_t _len, uint8_t *_data)
: ObjectFile(_filename, _fd, _len, _data)
size_t _len, uint8_t *_data,
Arch _arch, OpSys _opSys)
: ObjectFile(_filename, _fd, _len, _data, _arch, _opSys)
{
execHdr = (ecoff_exechdr *)fileData;
fileHdr = &(execHdr->f);

3
base/loader/ecoff_object.hh
View file

@ -44,7 +44,8 @@ class EcoffObject : public ObjectFile
ecoff_aouthdr *aoutHdr;
EcoffObject(const std::string &_filename, int _fd,
size_t _len, uint8_t *_data);
size_t _len, uint8_t *_data,
Arch _arch, OpSys _opSys);
public:
virtual ~EcoffObject() {}

10
base/loader/elf_object.cc
View file

@ -43,8 +43,9 @@ ObjectFile *
ElfObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
{
if (memcmp(((Elf64_Ehdr *)data)->e_ident, ELFMAG, SELFMAG) == 0) {
// for now we'll assume it's a 64-bit Alpha binary
return new ElfObject(fname, fd, len, data);
// for now we'll assume it's a 64-bit Alpha Linux binary
return new ElfObject(fname, fd, len, data,
ObjectFile::Alpha, ObjectFile::Linux);
}
else {
return NULL;
@ -53,8 +54,9 @@ ElfObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
ElfObject::ElfObject(const string &_filename, int _fd,
size_t _len, uint8_t *_data)
: ObjectFile(_filename, _fd, _len, _data)
size_t _len, uint8_t *_data,
Arch _arch, OpSys _opSys)
: ObjectFile(_filename, _fd, _len, _data, _arch, _opSys)
{
ehdr = (Elf64_Ehdr *)fileData;

3
base/loader/elf_object.hh
View file

@ -45,7 +45,8 @@ class ElfObject : public ObjectFile
int dataPhdrIdx;
ElfObject(const std::string &_filename, int _fd,
size_t _len, uint8_t *_data);
size_t _len, uint8_t *_data,
Arch _arch, OpSys _opSys);
public:
virtual ~ElfObject() {}

6
base/loader/object_file.cc
View file

@ -46,8 +46,10 @@
using namespace std;
ObjectFile::ObjectFile(const string &_filename, int _fd,
size_t _len, uint8_t *_data)
: filename(_filename), descriptor(_fd), fileData(_data), len(_len)
size_t _len, uint8_t *_data,
Arch _arch, OpSys _opSys)
: filename(_filename), descriptor(_fd), fileData(_data), len(_len),
arch(_arch), opSys(_opSys)
{
}

22
base/loader/object_file.hh
View file

@ -36,14 +36,31 @@ class SymbolTable;
class ObjectFile
{
public:
enum Arch {
UnknownArch,
Alpha
};
enum OpSys {
UnknownOpSys,
Tru64,
Linux
};
protected:
const std::string filename;
int descriptor;
uint8_t *fileData;
size_t len;
Arch arch;
OpSys opSys;
ObjectFile(const std::string &_filename, int _fd,
size_t _len, uint8_t *_data);
size_t _len, uint8_t *_data,
Arch _arch, OpSys _opSys);
public:
virtual ~ObjectFile();
@ -55,6 +72,9 @@ class ObjectFile
virtual bool loadGlobalSymbols(SymbolTable *symtab) = 0;
virtual bool loadLocalSymbols(SymbolTable *symtab) = 0;
Arch getArch() const { return arch; }
OpSys getOpSys() const { return opSys; }
protected:
struct Section {

2
cpu/exec_context.cc
View file

@ -34,7 +34,7 @@
#ifdef FULL_SYSTEM
#include "sim/system.hh"
#else
#include "sim/prog.hh"
#include "sim/process.hh"
#endif
using namespace std;

30
cpu/exec_context.hh
View file

@ -52,7 +52,7 @@ class MemoryController;
#else // !FULL_SYSTEM
#include "sim/prog.hh"
#include "sim/process.hh"
#endif // FULL_SYSTEM
@ -376,6 +376,34 @@ class ExecContext
#endif
#ifndef FULL_SYSTEM
IntReg getSyscallArg(int i)
{
return regs.intRegFile[ArgumentReg0 + i];
}
// used to shift args for indirect syscall
void setSyscallArg(int i, IntReg val)
{
regs.intRegFile[ArgumentReg0 + i] = val;
}
void setSyscallReturn(int64_t return_value)
{
// check for error condition. Alpha syscall convention is to
// indicate success/failure in reg a3 (r19) and put the
// return value itself in the standard return value reg (v0).
const int RegA3 = 19; // only place this is used
if (return_value >= 0) {
// no error
regs.intRegFile[RegA3] = 0;
regs.intRegFile[ReturnValueReg] = return_value;
} else {
// got an error, return details
regs.intRegFile[RegA3] = (IntReg) -1;
regs.intRegFile[ReturnValueReg] = -return_value;
}
}
void syscall()
{
process->syscall(this);

1
cpu/simple_cpu/simple_cpu.cc
View file

@ -70,7 +70,6 @@
#else // !FULL_SYSTEM
#include "eio/eio.hh"
#include "mem/functional_mem/functional_memory.hh"
#include "sim/prog.hh"
#endif // FULL_SYSTEM
using namespace std;

72
sim/prog.cc → sim/process.cc
View file

@ -42,9 +42,14 @@
#include "mem/functional_mem/main_memory.hh"
#include "sim/builder.hh"
#include "sim/fake_syscall.hh"
#include "sim/prog.hh"
#include "sim/process.hh"
#include "sim/sim_stats.hh"
#ifdef TARGET_ALPHA
#include "arch/alpha/alpha_tru64_process.hh"
#include "arch/alpha/alpha_linux_process.hh"
#endif
using namespace std;
//
@ -53,13 +58,9 @@ using namespace std;
// mode when we do have an OS
//
#ifdef FULL_SYSTEM
#error "prog.cc not compatible with FULL_SYSTEM"
#error "process.cc not compatible with FULL_SYSTEM"
#endif
// max allowable number of processes: should be no real cost to
// cranking this up if necessary
const int MAX_PROCESSES = 8;
// current number of allocated processes
int num_processes = 0;
@ -242,16 +243,12 @@ copyStringArray(vector<string> &strings, Addr array_ptr, Addr data_ptr,
memory->access(Write, array_ptr, &data_ptr, sizeof(Addr));
}
LiveProcess::LiveProcess(const string &name,
LiveProcess::LiveProcess(const string &name, ObjectFile *objFile,
int stdin_fd, int stdout_fd, int stderr_fd,
vector<string> &argv, vector<string> &envp)
: Process(name, stdin_fd, stdout_fd, stderr_fd)
{
prog_fname = argv[0];
ObjectFile *objFile = createObjectFile(prog_fname);
if (objFile == NULL) {
fatal("Can't load object file %s", prog_fname);
}
prog_entry = objFile->entryPoint();
text_base = objFile->textBase();
@ -267,6 +264,10 @@ LiveProcess::LiveProcess(const string &name,
// code should get moved to some architecture-specific spot.
stack_base = text_base - (409600+4096);
// Set up region for mmaps. Tru64 seems to start just above 0 and
// grow up from there.
mmap_base = 0x10000;
// Set pointer for next thread stack. Reserve 8M for main stack.
next_thread_stack_base = stack_base - (8 * 1024 * 1024);
@ -316,12 +317,45 @@ LiveProcess::LiveProcess(const string &name,
}
void
LiveProcess::syscall(ExecContext *xc)
LiveProcess *
LiveProcess::create(const string &name,
int stdin_fd, int stdout_fd, int stderr_fd,
vector<string> &argv, vector<string> &envp)
{
num_syscalls++;
LiveProcess *process = NULL;
ObjectFile *objFile = createObjectFile(argv[0]);
if (objFile == NULL) {
fatal("Can't load object file %s", argv[0]);
}
fake_syscall(this, xc);
// check object type & set up syscall emulation pointer
if (objFile->getArch() == ObjectFile::Alpha) {
switch (objFile->getOpSys()) {
case ObjectFile::Tru64:
process = new AlphaTru64Process(name, objFile,
stdin_fd, stdout_fd, stderr_fd,
argv, envp);
break;
case ObjectFile::Linux:
process = new AlphaLinuxProcess(name, objFile,
stdin_fd, stdout_fd, stderr_fd,
argv, envp);
break;
default:
fatal("Unknown/unsupported operating system.");
}
} else {
fatal("Unknown object file architecture.");
}
delete objFile;
if (process == NULL)
fatal("Unknown error creating process object.");
return process;
}
@ -357,10 +391,10 @@ CREATE_SIM_OBJECT(LiveProcess)
// We do this with "temp" because of the bogus compiler warning
// you get with g++ 2.95 -O if you just "return new LiveProcess(..."
LiveProcess *temp = new LiveProcess(getInstanceName(),
stdin_fd, stdout_fd, stderr_fd,
cmd,
env.isValid() ? env : null_vec);
LiveProcess *temp = LiveProcess::create(getInstanceName(),
stdin_fd, stdout_fd, stderr_fd,
cmd,
env.isValid() ? env : null_vec);
return temp;
}

26
sim/prog.hh → sim/process.hh
View file

@ -26,8 +26,8 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __PROG_HH__
#define __PROG_HH__
#ifndef __PROCESS_HH__
#define __PROCESS_HH__
//
// The purpose of this code is to fake the loader & syscall mechanism
@ -89,10 +89,12 @@ class Process : public SimObject
unsigned stack_size; // initial stack size
Addr stack_min; // lowest address accessed on the stack
// addr to use for next stack region (for multithreaded apps)
Addr next_thread_stack_base;
// Base of region for mmaps (when user doesn't specify an address).
Addr mmap_base;
std::string prog_fname; // file name
Addr prog_entry; // entry point (initial PC)
@ -165,18 +167,26 @@ class Process : public SimObject
//
// "Live" process with system calls redirected to host system
//
class MainMemory;
class ObjectFile;
class LiveProcess : public Process
{
public:
LiveProcess(const std::string &name,
protected:
LiveProcess(const std::string &name, ObjectFile *objFile,
int stdin_fd, int stdout_fd, int stderr_fd,
std::vector<std::string> &argv,
std::vector<std::string> &envp);
virtual void syscall(ExecContext *xc);
public:
// this function is used to create the LiveProcess object, since
// we can't tell which subclass of LiveProcess to use until we
// open and look at the object file.
static LiveProcess *create(const std::string &name,
int stdin_fd, int stdout_fd, int stderr_fd,
std::vector<std::string> &argv,
std::vector<std::string> &envp);
};
#endif // !FULL_SYSTEM
#endif // __PROG_HH__
#endif // __PROCESS_HH__

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/*
* Copyright (c) 2003 The Regents of The University of Michigan
* All rights reserved.
*
* 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 <unistd.h>
#include <string>
#include <iostream>
#include "sim/syscall_emul.hh"
#include "base/trace.hh"
#include "cpu/exec_context.hh"
#include "cpu/base_cpu.hh"
#include "sim/process.hh"
#include "sim/sim_events.hh"
using namespace std;
void
SyscallDesc::doSyscall(int callnum, Process *process, ExecContext *xc)
{
DPRINTFR(SyscallVerbose, "%s: syscall %s called\n",
xc->cpu->name(), name);
int retval = (*funcPtr)(this, callnum, process, xc);
DPRINTFR(SyscallVerbose, "%s: syscall %s returns %d\n",
xc->cpu->name(), name, retval);
if (!((flags & SyscallDesc::SuppressReturnValue) && retval == 0))
xc->setSyscallReturn(retval);
}
//
// Handler for unimplemented syscalls that we haven't thought about.
//
int
unimplementedFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
cerr << "Error: syscall " << desc->name
<< " (#" << callnum << ") unimplemented.";
cerr << " Args: " << xc->getSyscallArg(0) << ", " << xc->getSyscallArg(1)
<< ", ..." << endl;
abort();
}
//
// Handler for unimplemented syscalls that we never intend to
// implement (signal handling, etc.) and should not affect the correct
// behavior of the program. Print a warning only if the appropriate
// trace flag is enabled. Return success to the target program.
//
int
ignoreFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
DCOUT(SyscallWarnings) << "Warning: ignoring syscall " << desc->name
<< "(" << xc->getSyscallArg(0)
<< ", " << xc->getSyscallArg(1)
<< ", ...)" << endl;
return 0;
}
int
exitFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
new SimExitEvent("syscall caused exit", xc->getSyscallArg(0) & 0xff);
return 1;
}
int
getpagesizeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
{
return VMPageSize;
}
int
obreakFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
{
// change brk addr to first arg
p->brk_point = xc->getSyscallArg(0);
return p->brk_point;
}
int
closeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
{
int fd = p->sim_fd(xc->getSyscallArg(0));
return close(fd);
}
int
readFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
{
int fd = p->sim_fd(xc->getSyscallArg(0));
int nbytes = xc->getSyscallArg(2);
BufferArg bufArg(xc->getSyscallArg(1), nbytes);
int bytes_read = read(fd, bufArg.bufferPtr(), nbytes);
if (bytes_read != -1)
bufArg.copyOut(xc->mem);
return bytes_read;
}
int
writeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
{
int fd = p->sim_fd(xc->getSyscallArg(0));
int nbytes = xc->getSyscallArg(2);
BufferArg bufArg(xc->getSyscallArg(1), nbytes);
bufArg.copyIn(xc->mem);
int bytes_written = write(fd, bufArg.bufferPtr(), nbytes);
fsync(fd);
return bytes_written;
}
int
lseekFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
{
int fd = p->sim_fd(xc->getSyscallArg(0));
uint64_t offs = xc->getSyscallArg(1);
int whence = xc->getSyscallArg(2);
off_t result = lseek(fd, offs, whence);
return (result == (off_t)-1) ? -errno : result;
}
int
munmapFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
{
// given that we don't really implement mmap, munmap is really easy
return 0;
}
const char *hostname = "m5.eecs.umich.edu";
int
gethostnameFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
{
int name_len = xc->getSyscallArg(1);
BufferArg name(xc->getSyscallArg(0), name_len);
strncpy((char *)name.bufferPtr(), hostname, name_len);
name.copyOut(xc->mem);
return 0;
}

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/*
* Copyright (c) 2003 The Regents of The University of Michigan
* All rights reserved.
*
* 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.
*/
#ifndef __SYSCALL_EMUL_HH__
#define __SYSCALL_EMUL_HH__
///
/// @file syscall_emul.hh
///
/// This file defines objects used to emulate syscalls from the target
/// application on the host machine.
#include <string>
#include "base/intmath.hh" // for RoundUp
#include "targetarch/isa_traits.hh" // for Addr
#include "mem/functional_mem/functional_memory.hh"
class Process;
class ExecContext;
///
/// System call descriptor.
///
class SyscallDesc {
public:
typedef int (*FuncPtr)(SyscallDesc *, int num,
Process *, ExecContext *);
const char *name; //!< Syscall name (e.g., "open").
FuncPtr funcPtr; //!< Pointer to emulation function.
int flags; //!< Flags (see Flags enum).
/// Flag values for controlling syscall behavior.
enum Flags {
/// Don't set return regs according to funcPtr return value.
/// Used for syscalls with non-standard return conventions
/// that explicitly set the ExecContext regs (e.g.,
/// sigreturn).
SuppressReturnValue = 1
};
/// Constructor.
SyscallDesc(const char *_name, FuncPtr _funcPtr, int _flags = 0)
: name(_name), funcPtr(_funcPtr), flags(_flags)
{
}
/// Emulate the syscall. Public interface for calling through funcPtr.
void doSyscall(int callnum, Process *proc, ExecContext *xc);
};
class BaseBufferArg {
public:
BaseBufferArg(Addr _addr, int _size) : addr(_addr), size(_size)
{
bufPtr = new uint8_t[size];
// clear out buffer: in case we only partially populate this,
// and then do a copyOut(), we want to make sure we don't
// introduce any random junk into the simulated address space
memset(bufPtr, 0, size);
}
virtual ~BaseBufferArg() { delete [] bufPtr; }
//
// copy data into simulator space (read from target memory)
//
virtual bool copyIn(FunctionalMemory *mem)
{
mem->access(Read, addr, bufPtr, size);
return true; // no EFAULT detection for now
}
//
// copy data out of simulator space (write to target memory)
//
virtual bool copyOut(FunctionalMemory *mem)
{
mem->access(Write, addr, bufPtr, size);
return true; // no EFAULT detection for now
}
protected:
Addr addr;
int size;
uint8_t *bufPtr;
};
class BufferArg : public BaseBufferArg
{
public:
BufferArg(Addr _addr, int _size) : BaseBufferArg(_addr, _size) { }
void *bufferPtr() { return bufPtr; }
};
template <class T>
class TypedBufferArg : public BaseBufferArg
{
public:
// user can optionally specify a specific number of bytes to
// allocate to deal with those structs that have variable-size
// arrays at the end
TypedBufferArg(Addr _addr, int _size = sizeof(T))
: BaseBufferArg(_addr, _size)
{ }
// type case
operator T*() { return (T *)bufPtr; }
// dereference operators
T& operator*() { return *((T *)bufPtr); }
T* operator->() { return (T *)bufPtr; }
T& operator[](int i) { return ((T *)bufPtr)[i]; }
};
//////////////////////////////////////////////////////////////////////
//
// The following emulation functions are generic enough that they
// don't need to be recompiled for different emulated OS's. They are
// defined in sim/syscall_emul.cc.
//
//////////////////////////////////////////////////////////////////////
int unimplementedFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
int ignoreFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
int exitFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
int getpagesizeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
int obreakFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
int closeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
int readFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
int writeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
int lseekFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
int munmapFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
int gethostnameFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
//////////////////////////////////////////////////////////////////////
//
// The following emulation functions are generic, but need to be
// templated to account for differences in types, constants, etc.
//
//////////////////////////////////////////////////////////////////////
template <class OS>
int
ioctlFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
int fd = xc->getSyscallArg(0);
unsigned req = xc->getSyscallArg(1);
// DPRINTFR(SyscallVerbose, "ioctl(%d, 0x%x, ...)\n", fd, req);
if (fd < 0 || process->sim_fd(fd) < 0) {
// doesn't map to any simulator fd: not a valid target fd
return -EBADF;
}
switch (req) {
case OS::TIOCISATTY:
case OS::TIOCGETP:
case OS::TIOCSETP:
case OS::TIOCSETN:
case OS::TIOCSETC:
case OS::TIOCGETC:
return -ENOTTY;
default:
fatal("Unsupported ioctl call: ioctl(%d, 0x%x, ...)\n", fd, req);
}
}
struct OpenFlagTransTable {
int tgtFlag;
int hostFlag;
};
template <class OS>
int
openFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
std::string path;
if (xc->mem->readString(path, xc->getSyscallArg(0)) != No_Fault)
return -EFAULT;
if (path == "/dev/sysdev0") {
// This is a memory-mapped high-resolution timer device on Alpha.
// We don't support it, so just punt.
DCOUT(SyscallWarnings) << "Ignoring open(" << path << ", ...)" << endl;
return -ENOENT;
}
int tgtFlags = xc->getSyscallArg(1);
int mode = xc->getSyscallArg(2);
int hostFlags = 0;
// translate open flags
for (int i = 0; i < OS::NUM_OPEN_FLAGS; i++) {
if (tgtFlags & OS::openFlagTable[i].tgtFlag) {
tgtFlags &= ~OS::openFlagTable[i].tgtFlag;
hostFlags |= OS::openFlagTable[i].hostFlag;
}
}
// any target flags left?
if (tgtFlags != 0)
cerr << "Syscall: open: cannot decode flags: " << tgtFlags << endl;
#ifdef __CYGWIN32__
hostFlags |= O_BINARY;
#endif
// open the file
int fd = open(path.c_str(), hostFlags, mode);
return (fd == -1) ? -errno : process->open_fd(fd);
}
template <class OS>
int
statFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
std::string path;
if (xc->mem->readString(path, xc->getSyscallArg(0)) != No_Fault)
return -EFAULT;
struct stat hostBuf;
int result = stat(path.c_str(), &hostBuf);
if (result < 0)
return -errno;
OS::copyOutStatBuf(xc->mem, xc->getSyscallArg(1), &hostBuf);
return 0;
}
template <class OS>
int
lstatFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
std::string path;
if (xc->mem->readString(path, xc->getSyscallArg(0)) != No_Fault)
return -EFAULT;
struct stat hostBuf;
int result = lstat(path.c_str(), &hostBuf);
if (result < 0)
return -errno;
OS::copyOutStatBuf(xc->mem, xc->getSyscallArg(1), &hostBuf);
return 0;
}
template <class OS>
int
fstatFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
int fd = process->sim_fd(xc->getSyscallArg(0));
// DPRINTFR(SyscallVerbose, "fstat(%d, ...)\n", fd);
if (fd < 0)
return -EBADF;
struct stat hostBuf;
int result = fstat(fd, &hostBuf);
if (result < 0)
return -errno;
OS::copyOutStatBuf(xc->mem, xc->getSyscallArg(1), &hostBuf);
return 0;
}
//
// We don't really handle mmap(). If the target is mmaping an
// anonymous region or /dev/zero, we can get away with doing basically
// nothing (since memory is initialized to zero and the simulator
// doesn't really check addresses anyway). Always print a warning,
// since this could be seriously broken if we're not mapping
// /dev/zero.
//
// Someday we should explicitly check for /dev/zero in open, flag the
// file descriptor, and fail (or implement!) a non-anonymous mmap to
// anything else.
//
template <class OS>
int
mmapFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
{
Addr start = xc->getSyscallArg(0);
uint64_t length = xc->getSyscallArg(1);
// int prot = xc->getSyscallArg(2);
int flags = xc->getSyscallArg(3);
int fd = p->sim_fd(xc->getSyscallArg(4));
// int offset = xc->getSyscallArg(5);
if (start == 0) {
// user didn't give an address... pick one from our "mmap region"
start = p->mmap_base;
p->mmap_base += RoundUp<Addr>(length, VMPageSize);
}
if (!(flags & OS::TGT_MAP_ANONYMOUS)) {
DPRINTF(SyscallWarnings, "Warning: allowing mmap of file @ fd %d. "
"This will break if not /dev/zero.", fd);
}
return start;
}
template <class OS>
int
getrlimitFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
unsigned resource = xc->getSyscallArg(0);
TypedBufferArg<typename OS::rlimit> rlp(xc->getSyscallArg(1));
switch (resource) {
case OS::RLIMIT_STACK:
// max stack size in bytes: make up a number (2MB for now)
rlp->rlim_cur = rlp->rlim_max = 8 * 1024 * 1024;
break;
default:
cerr << "getrlimitFunc: unimplemented resource " << resource << endl;
abort();
break;
}
rlp.copyOut(xc->mem);
return 0;
}
// 1M usecs in 1 sec, for readability
const int one_million = 1000000;
// seconds since the epoch (1/1/1970)... about a billion, by my reckoning
const unsigned seconds_since_epoch = 1000000000;
//
// helper function: populate struct timeval with approximation of
// current elapsed time
//
template <class T1, class T2>
void
getElapsedTime(T1 &sec, T2 &usec)
{
int cycles_per_usec = ticksPerSecond / one_million;
int elapsed_usecs = curTick / cycles_per_usec;
sec = elapsed_usecs / one_million;
usec = elapsed_usecs % one_million;
}
template <class OS>
int
gettimeofdayFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
TypedBufferArg<typename OS::timeval> tp(xc->getSyscallArg(0));
getElapsedTime(tp->tv_sec, tp->tv_usec);
tp->tv_sec += seconds_since_epoch;
tp.copyOut(xc->mem);
return 0;
}
template <class OS>
int
getrusageFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
int who = xc->getSyscallArg(0); // THREAD, SELF, or CHILDREN
TypedBufferArg<typename OS::rusage> rup(xc->getSyscallArg(1));
if (who != OS::RUSAGE_SELF) {
// don't really handle THREAD or CHILDREN, but just warn and
// plow ahead
DCOUT(SyscallWarnings)
<< "Warning: getrusage() only supports RUSAGE_SELF."
<< " Parameter " << who << " ignored." << endl;
}
getElapsedTime(rup->ru_utime.tv_sec, rup->ru_utime.tv_usec);
rup->ru_stime.tv_sec = 0;
rup->ru_stime.tv_usec = 0;
rup->ru_maxrss = 0;
rup->ru_ixrss = 0;
rup->ru_idrss = 0;
rup->ru_isrss = 0;
rup->ru_minflt = 0;
rup->ru_majflt = 0;
rup->ru_nswap = 0;
rup->ru_inblock = 0;
rup->ru_oublock = 0;
rup->ru_msgsnd = 0;
rup->ru_msgrcv = 0;
rup->ru_nsignals = 0;
rup->ru_nvcsw = 0;
rup->ru_nivcsw = 0;
rup.copyOut(xc->mem);
return 0;
}
#endif // __SYSCALL_EMUL_HH__