130 lines
4.7 KiB
C++
130 lines
4.7 KiB
C++
/*
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* Copyright (c) 2004-2005 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: Gabe Black
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*/
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#ifndef __KERN_OPERATINGSYSTEM_HH__
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#define __KERN_OPERATINGSYSTEM_HH__
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#include "base/types.hh"
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#include "config/full_system.hh"
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#if FULL_SYSTEM
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class OperatingSystem {};
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#else //!FULL_SYSTEM
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#include <string>
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class LiveProcess;
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class ThreadContext;
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/// This struct is used to build an target-OS-dependent table that
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/// maps the target's open() flags to the host open() flags.
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struct OpenFlagTransTable {
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int tgtFlag; //!< Target system flag value.
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int hostFlag; //!< Corresponding host system flag value.
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};
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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 an operating system
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/// syscall interface.
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///
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class OperatingSystem {
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public:
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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 void tgt_stat;
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// same for stat64
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typedef void 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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typedef struct {
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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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} utsname;
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/// Limit struct for getrlimit/setrlimit.
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typedef struct {
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uint64_t rlim_cur; //!< soft limit
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uint64_t rlim_max; //!< hard limit
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} rlimit;
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/// For gettimeofday().
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typedef struct {
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int64_t tv_sec; //!< seconds
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int64_t tv_usec; //!< microseconds
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} timeval;
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// For writev/readv
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typedef struct {
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uint64_t iov_base; // void *
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uint64_t iov_len;
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} tgt_iovec;
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/// For getrusage().
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typedef struct {
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timeval ru_utime; //!< user time used
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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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} rusage;
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static int openSpecialFile(std::string path, LiveProcess *process, ThreadContext *tc);
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}; // class OperatingSystem
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#endif // FULL_SYSTEM
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#endif // __OPERATINGSYSTEM_HH__
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