#ifndef __SIM_SYSCALL_EMUL_HH__
#define __SIM_SYSCALL_EMUL_HH__
-#define BSD_HOST (defined(__APPLE__) || defined(__OpenBSD__) || \
- defined(__FreeBSD__))
+#define NO_STAT64 (defined(__APPLE__) || defined(__OpenBSD__) || \
+ defined(__FreeBSD__) || defined(__CYGWIN__))
///
/// @file syscall_emul.hh
#ifdef __CYGWIN32__
#include <sys/fcntl.h> // for O_BINARY
#endif
+#include <sys/stat.h>
+#include <fcntl.h>
#include <sys/uio.h>
-#include "arch/isa_traits.hh" // for Addr
+#include "sim/host.hh" // for Addr
#include "base/chunk_generator.hh"
#include "base/intmath.hh" // for RoundUp
#include "base/misc.hh"
/// Typedef for target syscall handler functions.
typedef SyscallReturn (*FuncPtr)(SyscallDesc *, int num,
- Process *, ThreadContext *);
+ LiveProcess *, ThreadContext *);
const char *name; //!< Syscall name (e.g., "open").
FuncPtr funcPtr; //!< Pointer to emulation function.
}
/// Emulate the syscall. Public interface for calling through funcPtr.
- void doSyscall(int callnum, Process *proc, ThreadContext *tc);
+ void doSyscall(int callnum, LiveProcess *proc, ThreadContext *tc);
};
/// Handler for unimplemented syscalls that we haven't thought about.
SyscallReturn unimplementedFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// 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.
SyscallReturn ignoreFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target exit() handler: terminate simulation.
SyscallReturn exitFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target getpagesize() handler.
SyscallReturn getpagesizeFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target obreak() handler: set brk address.
SyscallReturn obreakFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target close() handler.
SyscallReturn closeFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target read() handler.
SyscallReturn readFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target write() handler.
SyscallReturn writeFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target lseek() handler.
SyscallReturn lseekFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target munmap() handler.
SyscallReturn munmapFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target gethostname() handler.
SyscallReturn gethostnameFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target unlink() handler.
SyscallReturn unlinkFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target rename() handler.
SyscallReturn renameFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target truncate() handler.
SyscallReturn truncateFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target ftruncate() handler.
SyscallReturn ftruncateFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target chown() handler.
SyscallReturn chownFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target fchown() handler.
SyscallReturn fchownFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
+
+/// Target dup() handler.
+SyscallReturn dupFunc(SyscallDesc *desc, int num,
+ LiveProcess *process, ThreadContext *tc);
/// Target fnctl() handler.
SyscallReturn fcntlFunc(SyscallDesc *desc, int num,
- Process *process, ThreadContext *tc);
+ LiveProcess *process, ThreadContext *tc);
+
+/// Target fcntl64() handler.
+SyscallReturn fcntl64Func(SyscallDesc *desc, int num,
+ LiveProcess *process, ThreadContext *tc);
/// Target setuid() handler.
SyscallReturn setuidFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target getpid() handler.
SyscallReturn getpidFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target getuid() handler.
SyscallReturn getuidFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target getgid() handler.
SyscallReturn getgidFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target getppid() handler.
SyscallReturn getppidFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target geteuid() handler.
SyscallReturn geteuidFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target getegid() handler.
SyscallReturn getegidFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Pseudo Funcs - These functions use a different return convension,
/// returning a second value in a register other than the normal return register
SyscallReturn pipePseudoFunc(SyscallDesc *desc, int num,
- Process *process, ThreadContext *tc);
+ LiveProcess *process, ThreadContext *tc);
/// Target getpidPseudo() handler.
SyscallReturn getpidPseudoFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target getuidPseudo() handler.
SyscallReturn getuidPseudoFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
+ LiveProcess *p, ThreadContext *tc);
/// Target getgidPseudo() handler.
SyscallReturn getgidPseudoFunc(SyscallDesc *desc, int num,
- Process *p, ThreadContext *tc);
-
-
-/// This struct is used to build an target-OS-dependent table that
-/// maps the target's open() flags to the host open() flags.
-struct OpenFlagTransTable {
- int tgtFlag; //!< Target system flag value.
- int hostFlag; //!< Corresponding host system flag value.
-};
-
+ LiveProcess *p, ThreadContext *tc);
/// A readable name for 1,000,000, for converting microseconds to seconds.
//
//////////////////////////////////////////////////////////////////////
+#if NO_STAT64
+ typedef struct stat hst_stat;
+ typedef struct stat hst_stat64;
+#else
+ typedef struct stat hst_stat;
+ typedef struct stat64 hst_stat64;
+#endif
+
+//// Helper function to convert a host stat buffer to a target stat
+//// buffer. Also copies the target buffer out to the simulated
+//// memory space. Used by stat(), fstat(), and lstat().
+
+template <typename target_stat, typename host_stat>
+static void
+convertStatBuf(target_stat &tgt, host_stat *host, bool fakeTTY = false)
+{
+ if (fakeTTY)
+ tgt->st_dev = 0xA;
+ else
+ tgt->st_dev = host->st_dev;
+ tgt->st_dev = htog(tgt->st_dev);
+ tgt->st_ino = host->st_ino;
+ tgt->st_ino = htog(tgt->st_ino);
+ tgt->st_mode = host->st_mode;
+ tgt->st_mode = htog(tgt->st_mode);
+ tgt->st_nlink = host->st_nlink;
+ tgt->st_nlink = htog(tgt->st_nlink);
+ tgt->st_uid = host->st_uid;
+ tgt->st_uid = htog(tgt->st_uid);
+ tgt->st_gid = host->st_gid;
+ tgt->st_gid = htog(tgt->st_gid);
+ if (fakeTTY)
+ tgt->st_rdev = 0x880d;
+ else
+ tgt->st_rdev = host->st_rdev;
+ tgt->st_rdev = htog(tgt->st_rdev);
+ tgt->st_size = host->st_size;
+ tgt->st_size = htog(tgt->st_size);
+ tgt->st_atimeX = host->st_atime;
+ tgt->st_atimeX = htog(tgt->st_atimeX);
+ tgt->st_mtimeX = host->st_mtime;
+ tgt->st_mtimeX = htog(tgt->st_mtimeX);
+ tgt->st_ctimeX = host->st_ctime;
+ tgt->st_ctimeX = htog(tgt->st_ctimeX);
+ tgt->st_blksize = host->st_blksize;
+ tgt->st_blksize = htog(tgt->st_blksize);
+ tgt->st_blocks = host->st_blocks;
+ tgt->st_blocks = htog(tgt->st_blocks);
+}
+
+// Same for stat64
+
+template <typename target_stat, typename host_stat64>
+static void
+convertStat64Buf(target_stat &tgt, host_stat64 *host, bool fakeTTY = false)
+{
+ convertStatBuf<target_stat, host_stat64>(tgt, host, fakeTTY);
+#if defined(STAT_HAVE_NSEC)
+ tgt->st_atime_nsec = host->st_atime_nsec;
+ tgt->st_atime_nsec = htog(tgt->st_atime_nsec);
+ tgt->st_mtime_nsec = host->st_mtime_nsec;
+ tgt->st_mtime_nsec = htog(tgt->st_mtime_nsec);
+ tgt->st_ctime_nsec = host->st_ctime_nsec;
+ tgt->st_ctime_nsec = htog(tgt->st_ctime_nsec);
+#else
+ tgt->st_atime_nsec = 0;
+ tgt->st_mtime_nsec = 0;
+ tgt->st_ctime_nsec = 0;
+#endif
+}
+
+//Here are a couple convenience functions
+template<class OS>
+static void
+copyOutStatBuf(TranslatingPort * mem, Addr addr,
+ hst_stat *host, bool fakeTTY = false)
+{
+ typedef TypedBufferArg<typename OS::tgt_stat> tgt_stat_buf;
+ tgt_stat_buf tgt(addr);
+ convertStatBuf<tgt_stat_buf, hst_stat>(tgt, host, fakeTTY);
+ tgt.copyOut(mem);
+}
+
+template<class OS>
+static void
+copyOutStat64Buf(TranslatingPort * mem, Addr addr,
+ hst_stat64 *host, bool fakeTTY = false)
+{
+ typedef TypedBufferArg<typename OS::tgt_stat64> tgt_stat_buf;
+ tgt_stat_buf tgt(addr);
+ convertStatBuf<tgt_stat_buf, hst_stat64>(tgt, host, fakeTTY);
+ tgt.copyOut(mem);
+}
+
/// Target ioctl() handler. For the most part, programs call ioctl()
/// only to find out if their stdout is a tty, to determine whether to
/// do line or block buffering.
template <class OS>
SyscallReturn
-ioctlFunc(SyscallDesc *desc, int callnum, Process *process,
+ioctlFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
int fd = tc->getSyscallArg(0);
/// Target open() handler.
template <class OS>
SyscallReturn
-openFunc(SyscallDesc *desc, int callnum, Process *process,
+openFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
std::string path;
/// Target chmod() handler.
template <class OS>
SyscallReturn
-chmodFunc(SyscallDesc *desc, int callnum, Process *process,
+chmodFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
std::string path;
/// Target fchmod() handler.
template <class OS>
SyscallReturn
-fchmodFunc(SyscallDesc *desc, int callnum, Process *process,
+fchmodFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
int fd = tc->getSyscallArg(0);
/// Target stat() handler.
template <class OS>
SyscallReturn
-statFunc(SyscallDesc *desc, int callnum, Process *process,
+statFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
std::string path;
if (result < 0)
return -errno;
- OS::copyOutStatBuf(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf);
+ copyOutStatBuf<OS>(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf);
return 0;
}
/// Target fstat64() handler.
template <class OS>
SyscallReturn
-fstat64Func(SyscallDesc *desc, int callnum, Process *process,
+fstat64Func(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
int fd = tc->getSyscallArg(0);
return -EBADF;
}
-#if BSD_HOST
+#if NO_STAT64
struct stat hostBuf;
int result = fstat(process->sim_fd(fd), &hostBuf);
#else
if (result < 0)
return -errno;
- OS::copyOutStat64Buf(tc->getMemPort(), fd, tc->getSyscallArg(1), &hostBuf);
+ copyOutStat64Buf<OS>(tc->getMemPort(), tc->getSyscallArg(1),
+ &hostBuf, (fd == 1));
return 0;
}
/// Target lstat() handler.
template <class OS>
SyscallReturn
-lstatFunc(SyscallDesc *desc, int callnum, Process *process,
+lstatFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
std::string path;
if (result < 0)
return -errno;
- OS::copyOutStatBuf(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf);
+ copyOutStatBuf<OS>(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf);
return 0;
}
/// Target lstat64() handler.
template <class OS>
SyscallReturn
-lstat64Func(SyscallDesc *desc, int callnum, Process *process,
+lstat64Func(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
std::string path;
if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0)))
return -EFAULT;
-#if BSD_HOST
+#if NO_STAT64
struct stat hostBuf;
int result = lstat(path.c_str(), &hostBuf);
#else
if (result < 0)
return -errno;
- OS::copyOutStat64Buf(tc->getMemPort(), -1, tc->getSyscallArg(1), &hostBuf);
+ copyOutStat64Buf<OS>(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf);
return 0;
}
/// Target fstat() handler.
template <class OS>
SyscallReturn
-fstatFunc(SyscallDesc *desc, int callnum, Process *process,
+fstatFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
int fd = process->sim_fd(tc->getSyscallArg(0));
if (result < 0)
return -errno;
- OS::copyOutStatBuf(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf);
+ copyOutStatBuf<OS>(tc->getMemPort(), tc->getSyscallArg(1),
+ &hostBuf, (fd == 1));
return 0;
}
/// Target statfs() handler.
template <class OS>
SyscallReturn
-statfsFunc(SyscallDesc *desc, int callnum, Process *process,
+statfsFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
std::string path;
if (result < 0)
return -errno;
- OS::copyOutStatfsBuf(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf);
+ OS::copyOutStatfsBuf(tc->getMemPort(),
+ (Addr)(tc->getSyscallArg(1)), &hostBuf);
return 0;
}
/// Target fstatfs() handler.
template <class OS>
SyscallReturn
-fstatfsFunc(SyscallDesc *desc, int callnum, Process *process,
+fstatfsFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
int fd = process->sim_fd(tc->getSyscallArg(0));
if (result < 0)
return -errno;
- OS::copyOutStatfsBuf(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf);
+ OS::copyOutStatfsBuf(tc->getMemPort(), tc->getSyscallArg(1),
+ &hostBuf);
return 0;
}
/// Target writev() handler.
template <class OS>
SyscallReturn
-writevFunc(SyscallDesc *desc, int callnum, Process *process,
+writevFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
int fd = tc->getSyscallArg(0);
/// anything else.
template <class OS>
SyscallReturn
-mmapFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc)
+mmapFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc)
{
Addr start = tc->getSyscallArg(0);
uint64_t length = tc->getSyscallArg(1);
/// Target getrlimit() handler.
template <class OS>
SyscallReturn
-getrlimitFunc(SyscallDesc *desc, int callnum, Process *process,
+getrlimitFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
unsigned resource = tc->getSyscallArg(0);
/// Target gettimeofday() handler.
template <class OS>
SyscallReturn
-gettimeofdayFunc(SyscallDesc *desc, int callnum, Process *process,
+gettimeofdayFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
TypedBufferArg<typename OS::timeval> tp(tc->getSyscallArg(0));
/// Target utimes() handler.
template <class OS>
SyscallReturn
-utimesFunc(SyscallDesc *desc, int callnum, Process *process,
+utimesFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
std::string path;
/// Target getrusage() function.
template <class OS>
SyscallReturn
-getrusageFunc(SyscallDesc *desc, int callnum, Process *process,
+getrusageFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
ThreadContext *tc)
{
int who = tc->getSyscallArg(0); // THREAD, SELF, or CHILDREN
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