a928a438b8
Used cppclean to help identify useless includes and removed them. This involved erroneously included headers, but also cases where forward declarations could have been used rather than a full include.
268 lines
10 KiB
C++
268 lines
10 KiB
C++
/*
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* Copyright (c) 2004-2009 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Ali Saidi
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*/
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#ifndef __LINUX_HH__
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#define __LINUX_HH__
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#include "base/types.hh"
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#include <string>
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#include "kern/operatingsystem.hh"
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#include "sim/process.hh"
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class ThreadContext;
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///
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/// This class encapsulates the types, structures, constants,
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/// functions, and syscall-number mappings specific to the Alpha Linux
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/// syscall interface.
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///
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class Linux : public OperatingSystem
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{
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public:
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//@{
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/// Basic Linux types.
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typedef uint64_t size_t;
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typedef uint64_t off_t;
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typedef int64_t time_t;
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typedef int64_t clock_t;
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typedef uint32_t uid_t;
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typedef uint32_t gid_t;
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//@}
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/// Stat buffer. Note that we can't call it 'stat' since that
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/// gets #defined to something else on some systems. This type
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/// can be specialized by architecture specific "Linux" classes
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typedef struct {
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uint32_t st_dev; //!< device
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uint32_t st_ino; //!< inode
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uint32_t st_mode; //!< mode
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uint32_t st_nlink; //!< link count
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uint32_t st_uid; //!< owner's user ID
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uint32_t st_gid; //!< owner's group ID
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uint32_t st_rdev; //!< device number
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int32_t _pad1; //!< for alignment
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int64_t st_size; //!< file size in bytes
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uint64_t st_atimeX; //!< time of last access
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uint64_t st_mtimeX; //!< time of last modification
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uint64_t st_ctimeX; //!< time of last status change
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uint32_t st_blksize; //!< optimal I/O block size
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int32_t st_blocks; //!< number of blocks allocated
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uint32_t st_flags; //!< flags
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uint32_t st_gen; //!< unknown
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} tgt_stat;
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// same for stat64
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typedef struct {
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uint64_t st_dev;
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uint64_t st_ino;
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uint64_t st_rdev;
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int64_t st_size;
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uint64_t st_blocks;
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uint32_t st_mode;
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uint32_t st_uid;
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uint32_t st_gid;
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uint32_t st_blksize;
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uint32_t st_nlink;
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uint32_t __pad0;
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uint64_t st_atimeX;
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uint64_t st_atime_nsec;
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uint64_t st_mtimeX;
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uint64_t st_mtime_nsec;
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uint64_t st_ctimeX;
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uint64_t st_ctime_nsec;
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int64_t ___unused[3];
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} tgt_stat64;
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/// Length of strings in struct utsname (plus 1 for null char).
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static const int _SYS_NMLN = 65;
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/// Interface struct for uname().
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struct utsname {
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char sysname[_SYS_NMLN]; //!< System name.
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char nodename[_SYS_NMLN]; //!< Node name.
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char release[_SYS_NMLN]; //!< OS release.
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char version[_SYS_NMLN]; //!< OS version.
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char machine[_SYS_NMLN]; //!< Machine type.
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};
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/// Limit struct for getrlimit/setrlimit.
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struct rlimit {
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uint64_t rlim_cur; //!< soft limit
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uint64_t rlim_max; //!< hard limit
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};
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/// For gettimeofday().
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struct timeval {
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int64_t tv_sec; //!< seconds
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int64_t tv_usec; //!< microseconds
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};
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/// For clock_gettime().
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struct timespec {
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time_t tv_sec; //!< seconds
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int64_t tv_nsec; //!< nanoseconds
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};
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/// Clock ticks per second, for times().
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static const int M5_SC_CLK_TCK = 100;
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/// For times().
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struct tms {
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int64_t tms_utime; //!< user time
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int64_t tms_stime; //!< system time
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int64_t tms_cutime; //!< user time of children
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int64_t tms_cstime; //!< system time of children
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};
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// For writev/readv
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struct tgt_iovec {
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uint64_t iov_base; // void *
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uint64_t iov_len;
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};
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//@{
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/// ioctl() command codes.
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static const unsigned TGT_TCGETS = 0x5401;
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static const unsigned TGT_TCGETA = 0x5405;
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static const unsigned TGT_TCSETAW = 0x5407;
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static const unsigned TGT_FIONREAD = 0x541B;
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//@}
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/// Return true for the ioctl codes for which we return ENOTTY
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/// *without* printing a warning, since we know that ENOTTY is the
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/// correct thing to return (and not just a sign that we don't
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/// recognize the ioctl code.
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static bool
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isTtyReq(unsigned req)
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{
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switch (req) {
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case TGT_FIONREAD:
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case TGT_TCSETAW:
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case TGT_TCGETS:
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case TGT_TCGETA:
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return true;
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default:
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return false;
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}
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}
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/// Resource constants for getrlimit().
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static const unsigned TGT_RLIMIT_CPU = 0;
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static const unsigned TGT_RLIMIT_FSIZE = 1;
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static const unsigned TGT_RLIMIT_DATA = 2;
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static const unsigned TGT_RLIMIT_STACK = 3;
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static const unsigned TGT_RLIMIT_CORE = 4;
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static const unsigned TGT_RLIMIT_RSS = 5;
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static const unsigned TGT_RLIMIT_NPROC = 6;
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static const unsigned TGT_RLIMIT_NOFILE = 7;
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static const unsigned TGT_RLIMIT_MEMLOCK = 8;
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static const unsigned TGT_RLIMIT_AS = 9;
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static const unsigned TGT_RLIMIT_LOCKS = 10;
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static const unsigned TGT_RLIMIT_SIGPENDING = 11;
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static const unsigned TGT_RLIMIT_MSGQUEUE = 12;
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static const unsigned TGT_RLIMIT_NICE = 13;
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static const unsigned TGT_RLIMIT_RTPRIO = 14;
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static const unsigned TGT_RLIMIT_RTTIME = 15;
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static const unsigned TGT_RLIM_NLIMITS = 16;
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/// For getrusage().
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static const int TGT_RUSAGE_SELF = 0;
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static const int TGT_RUSAGE_CHILDREN = -1;
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static const int TGT_RUSAGE_BOTH = -2;
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struct rusage {
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struct timeval ru_utime; //!< user time used
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struct timeval ru_stime; //!< system time used
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int64_t ru_maxrss; //!< max rss
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int64_t ru_ixrss; //!< integral shared memory size
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int64_t ru_idrss; //!< integral unshared data "
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int64_t ru_isrss; //!< integral unshared stack "
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int64_t ru_minflt; //!< page reclaims - total vmfaults
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int64_t ru_majflt; //!< page faults
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int64_t ru_nswap; //!< swaps
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int64_t ru_inblock; //!< block input operations
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int64_t ru_oublock; //!< block output operations
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int64_t ru_msgsnd; //!< messages sent
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int64_t ru_msgrcv; //!< messages received
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int64_t ru_nsignals; //!< signals received
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int64_t ru_nvcsw; //!< voluntary context switches
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int64_t ru_nivcsw; //!< involuntary "
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};
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static int openSpecialFile(std::string path, LiveProcess *process, ThreadContext *tc);
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static std::string procMeminfo(LiveProcess *process, ThreadContext *tc);
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// For futex system call
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static const unsigned TGT_FUTEX_WAIT = 0;
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static const unsigned TGT_FUTEX_WAKE = 1;
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static const unsigned TGT_EAGAIN = 11;
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static const unsigned TGT_EWOULDBLOCK = TGT_EAGAIN;
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static const unsigned TGT_FUTEX_PRIVATE_FLAG = 128;
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// for *at syscalls
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static const int TGT_AT_FDCWD = -100;
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// for MREMAP
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static const unsigned TGT_MREMAP_MAYMOVE = 0x1;
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static const unsigned TGT_MREMAP_FIXED = 0x2;
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static const unsigned TGT_CLONE_VM = 0x00000100;
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static const unsigned TGT_CLONE_FS = 0x00000200;
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static const unsigned TGT_CLONE_FILES = 0x00000400;
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static const unsigned TGT_CLONE_SIGHAND = 0x00000800;
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static const unsigned TGT_CLONE_PTRACE = 0x00002000;
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static const unsigned TGT_CLONE_VFORK = 0x00004000;
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static const unsigned TGT_CLONE_PARENT = 0x00008000;
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static const unsigned TGT_CLONE_THREAD = 0x00010000;
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static const unsigned TGT_CLONE_NEWNS = 0x00020000;
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static const unsigned TGT_CLONE_SYSVSEM = 0x00040000;
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static const unsigned TGT_CLONE_SETTLS = 0x00080000;
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static const unsigned TGT_CLONE_PARENT_SETTID = 0x00100000;
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static const unsigned TGT_CLONE_CHILD_CLEARTID = 0x00200000;
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static const unsigned TGT_CLONE_DETACHED = 0x00400000;
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static const unsigned TGT_CLONE_UNTRACED = 0x00800000;
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static const unsigned TGT_CLONE_CHILD_SETTID = 0x01000000;
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static const unsigned TGT_CLONE_NEWUTS = 0x04000000;
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static const unsigned TGT_CLONE_NEWIPC = 0x08000000;
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static const unsigned TGT_CLONE_NEWUSER = 0x10000000;
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static const unsigned TGT_CLONE_NEWPID = 0x20000000;
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static const unsigned TGT_CLONE_NEWNET = 0x40000000;
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static const unsigned TGT_CLONE_IO = 0x80000000;
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}; // class Linux
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#endif // __LINUX_HH__
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