/*
- * Copyright (c) 2004-2005 The Regents of The University of Michigan
+ * Copyright (c) 2004-2009 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* 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.
+ *
+ * Authors: Ali Saidi
*/
#ifndef __LINUX_HH__
#define __LINUX_HH__
+
+#include "base/types.hh"
#include "config/full_system.hh"
#if FULL_SYSTEM
#else //!FULL_SYSTEM
-#include <dirent.h>
-#include <errno.h>
-#include <fcntl.h> // for host open() flags
-#include <string.h> // for memset()
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
+#include <string>
-#include "arch/isa_traits.hh"
-#include "sim/syscall_emul.hh"
+#include "kern/operatingsystem.hh"
-class TranslatingPort;
+class ThreadContext;
+class LiveProcess;
///
/// This class encapsulates the types, structures, constants,
/// functions, and syscall-number mappings specific to the Alpha Linux
/// syscall interface.
///
-class Linux {
+class Linux : public OperatingSystem
+{
public:
typedef uint64_t size_t;
typedef uint64_t off_t;
typedef int64_t time_t;
+ typedef int64_t clock_t;
typedef uint32_t uid_t;
typedef uint32_t gid_t;
//@}
-#if BSD_HOST
- typedef struct stat hst_stat;
- typedef struct stat hst_stat64;
-#else
- typedef struct stat hst_stat ;
- typedef struct stat64 hst_stat64;
-#endif
-
/// Stat buffer. Note that we can't call it 'stat' since that
- /// gets #defined to something else on some systems.
- struct tgt_stat {
- uint32_t st_dev; //!< device
- uint32_t st_ino; //!< inode
- uint32_t st_mode; //!< mode
- uint32_t st_nlink; //!< link count
- uint32_t st_uid; //!< owner's user ID
- uint32_t st_gid; //!< owner's group ID
- uint32_t st_rdev; //!< device number
- int32_t _pad1; //!< for alignment
- int64_t st_size; //!< file size in bytes
- uint64_t st_atimeX; //!< time of last access
- uint64_t st_mtimeX; //!< time of last modification
- uint64_t st_ctimeX; //!< time of last status change
- uint32_t st_blksize; //!< optimal I/O block size
- int32_t st_blocks; //!< number of blocks allocated
- uint32_t st_flags; //!< flags
- uint32_t st_gen; //!< unknown
- };
+ /// gets #defined to something else on some systems. This type
+ /// can be specialized by architecture specific "Linux" classes
+ typedef struct {
+ uint32_t st_dev; //!< device
+ uint32_t st_ino; //!< inode
+ uint32_t st_mode; //!< mode
+ uint32_t st_nlink; //!< link count
+ uint32_t st_uid; //!< owner's user ID
+ uint32_t st_gid; //!< owner's group ID
+ uint32_t st_rdev; //!< device number
+ int32_t _pad1; //!< for alignment
+ int64_t st_size; //!< file size in bytes
+ uint64_t st_atimeX; //!< time of last access
+ uint64_t st_mtimeX; //!< time of last modification
+ uint64_t st_ctimeX; //!< time of last status change
+ uint32_t st_blksize; //!< optimal I/O block size
+ int32_t st_blocks; //!< number of blocks allocated
+ uint32_t st_flags; //!< flags
+ uint32_t st_gen; //!< unknown
+ } tgt_stat;
// same for stat64
- struct tgt_stat64 {
- uint64_t st_dev;
- uint64_t st_ino;
- uint64_t st_rdev;
- int64_t st_size;
- uint64_t st_blocks;
-
- uint32_t st_mode;
- uint32_t st_uid;
- uint32_t st_gid;
- uint32_t st_blksize;
- uint32_t st_nlink;
- uint32_t __pad0;
-
- uint64_t tgt_st_atime;
- uint64_t st_atime_nsec;
- uint64_t tgt_st_mtime;
- uint64_t st_mtime_nsec;
- uint64_t tgt_st_ctime;
- uint64_t st_ctime_nsec;
- int64_t ___unused[3];
- };
+ typedef struct {
+ uint64_t st_dev;
+ uint64_t st_ino;
+ uint64_t st_rdev;
+ int64_t st_size;
+ uint64_t st_blocks;
+
+ uint32_t st_mode;
+ uint32_t st_uid;
+ uint32_t st_gid;
+ uint32_t st_blksize;
+ uint32_t st_nlink;
+ uint32_t __pad0;
+
+ uint64_t st_atimeX;
+ uint64_t st_atime_nsec;
+ uint64_t st_mtimeX;
+ uint64_t st_mtime_nsec;
+ uint64_t st_ctimeX;
+ uint64_t st_ctime_nsec;
+ int64_t ___unused[3];
+ } tgt_stat64;
/// Length of strings in struct utsname (plus 1 for null char).
static const int _SYS_NMLN = 65;
/// Interface struct for uname().
struct utsname {
- char sysname[_SYS_NMLN]; //!< System name.
- char nodename[_SYS_NMLN]; //!< Node name.
- char release[_SYS_NMLN]; //!< OS release.
- char version[_SYS_NMLN]; //!< OS version.
- char machine[_SYS_NMLN]; //!< Machine type.
+ char sysname[_SYS_NMLN]; //!< System name.
+ char nodename[_SYS_NMLN]; //!< Node name.
+ char release[_SYS_NMLN]; //!< OS release.
+ char version[_SYS_NMLN]; //!< OS version.
+ char machine[_SYS_NMLN]; //!< Machine type.
};
/// Limit struct for getrlimit/setrlimit.
struct rlimit {
- uint64_t rlim_cur; //!< soft limit
- uint64_t rlim_max; //!< hard limit
+ uint64_t rlim_cur; //!< soft limit
+ uint64_t rlim_max; //!< hard limit
};
/// For gettimeofday().
struct timeval {
- int64_t tv_sec; //!< seconds
- int64_t tv_usec; //!< microseconds
+ int64_t tv_sec; //!< seconds
+ int64_t tv_usec; //!< microseconds
+ };
+
+ /// Clock ticks per second, for times().
+ static const int M5_SC_CLK_TCK = 100;
+
+ /// For times().
+ struct tms {
+ int64_t tms_utime; //!< user time
+ int64_t tms_stime; //!< system time
+ int64_t tms_cutime; //!< user time of children
+ int64_t tms_cstime; //!< system time of children
};
// For writev/readv
/// For getrusage().
struct rusage {
- struct timeval ru_utime; //!< user time used
- struct timeval ru_stime; //!< system time used
- int64_t ru_maxrss; //!< max rss
- 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 "
+ struct timeval ru_utime; //!< user time used
+ struct timeval ru_stime; //!< system time used
+ int64_t ru_maxrss; //!< max rss
+ 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 "
};
- /// 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().
-#if !BSD_HOST
- static void
- copyOutStatBuf(TranslatingPort *mem, Addr addr, hst_stat *host)
- {
- using namespace TheISA;
-
- TypedBufferArg<Linux::tgt_stat> tgt(addr);
-
- tgt->st_dev = htog(host->st_dev);
- tgt->st_ino = htog(host->st_ino);
- tgt->st_mode = htog(host->st_mode);
- tgt->st_nlink = htog(host->st_nlink);
- tgt->st_uid = htog(host->st_uid);
- tgt->st_gid = htog(host->st_gid);
- tgt->st_rdev = htog(host->st_rdev);
- tgt->st_size = htog(host->st_size);
- tgt->st_atimeX = htog(host->st_atime);
- tgt->st_mtimeX = htog(host->st_mtime);
- tgt->st_ctimeX = htog(host->st_ctime);
- tgt->st_blksize = htog(host->st_blksize);
- tgt->st_blocks = htog(host->st_blocks);
-
- tgt.copyOut(mem);
- }
-#else
- // Third version for bsd systems which no longer have any support for
- // the old stat() call and stat() is actually a stat64()
- static void
- copyOutStatBuf(TranslatingPort *mem, Addr addr, hst_stat64 *host)
- {
- using namespace TheISA;
-
- TypedBufferArg<Linux::tgt_stat> tgt(addr);
-
- tgt->st_dev = htog(host->st_dev);
- tgt->st_ino = htog(host->st_ino);
- tgt->st_mode = htog(host->st_mode);
- tgt->st_nlink = htog(host->st_nlink);
- tgt->st_uid = htog(host->st_uid);
- tgt->st_gid = htog(host->st_gid);
- tgt->st_rdev = htog(host->st_rdev);
- tgt->st_size = htog(host->st_size);
- tgt->st_atimeX = htog(host->st_atime);
- tgt->st_mtimeX = htog(host->st_mtime);
- tgt->st_ctimeX = htog(host->st_ctime);
- tgt->st_blksize = htog(host->st_blksize);
- tgt->st_blocks = htog(host->st_blocks);
-
- tgt.copyOut(mem);
- }
-#endif
-
-
- // Same for stat64
- static void
- copyOutStat64Buf(TranslatingPort *mem, int fd, Addr addr, hst_stat64 *host)
- {
- using namespace TheISA;
-
- TypedBufferArg<Linux::tgt_stat64> tgt(addr);
-
- // fd == 1 checks are because libc does some checks
- // that the stdout is interactive vs. a file
- // this makes it work on non-linux systems
- if (fd == 1)
- tgt->st_dev = htog((uint64_t)0xA);
- else
- tgt->st_dev = htog((uint64_t)host->st_dev);
- // XXX What about STAT64_HAS_BROKEN_ST_INO ???
- tgt->st_ino = htog((uint64_t)host->st_ino);
- if (fd == 1)
- tgt->st_rdev = htog((uint64_t)0x880d);
- else
- tgt->st_rdev = htog((uint64_t)host->st_rdev);
- tgt->st_size = htog((int64_t)host->st_size);
- tgt->st_blocks = htog((uint64_t)host->st_blocks);
-
- if (fd == 1)
- tgt->st_mode = htog((uint32_t)0x2190);
- else
- tgt->st_mode = htog((uint32_t)host->st_mode);
- tgt->st_uid = htog((uint32_t)host->st_uid);
- tgt->st_gid = htog((uint32_t)host->st_gid);
- tgt->st_blksize = htog((uint32_t)host->st_blksize);
- tgt->st_nlink = htog((uint32_t)host->st_nlink);
- tgt->tgt_st_atime = htog((uint64_t)host->st_atime);
- tgt->tgt_st_mtime = htog((uint64_t)host->st_mtime);
- tgt->tgt_st_ctime = htog((uint64_t)host->st_ctime);
-#if defined(STAT_HAVE_NSEC)
- tgt->st_atime_nsec = htog(host->st_atime_nsec);
- tgt->st_mtime_nsec = htog(host->st_mtime_nsec);
- tgt->st_ctime_nsec = htog(host->st_ctime_nsec);
-#else
- tgt->st_atime_nsec = 0;
- tgt->st_mtime_nsec = 0;
- tgt->st_ctime_nsec = 0;
-#endif
-
- tgt.copyOut(mem);
- }
+ static int openSpecialFile(std::string path, LiveProcess *process, ThreadContext *tc);
+ static std::string procMeminfo(LiveProcess *process, ThreadContext *tc);
}; // class Linux
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