📄 alpha_tru64_process.cc
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/* * Copyright (c) 2001, 2002, 2003, 2004, 2005 * The Regents of The University of Michigan * All Rights Reserved * * This code is part of the M5 simulator, developed by Nathan Binkert, * Erik Hallnor, Steve Raasch, and Steve Reinhardt, with contributions * from Ron Dreslinski, Dave Greene, Lisa Hsu, Kevin Lim, Ali Saidi, * and Andrew Schultz. * * Permission is granted to use, copy, create derivative works and * redistribute this software and such derivative works for any * purpose, so long as the copyright notice above, this grant of * permission, and the disclaimer below appear in all copies made; and * so long as the name of The University of Michigan is not used in * any advertising or publicity pertaining to the use or distribution * of this software without specific, written prior authorization. * * THIS SOFTWARE IS PROVIDED AS IS, WITHOUT REPRESENTATION FROM THE * UNIVERSITY OF MICHIGAN AS TO ITS FITNESS FOR ANY PURPOSE, AND * WITHOUT WARRANTY BY THE UNIVERSITY OF MICHIGAN OF ANY KIND, EITHER * EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE. THE REGENTS OF THE UNIVERSITY OF MICHIGAN SHALL NOT BE * LIABLE FOR ANY DAMAGES, INCLUDING DIRECT, SPECIAL, INDIRECT, * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WITH RESPECT TO ANY CLAIM * ARISING OUT OF OR IN CONNECTION WITH THE USE OF THE SOFTWARE, EVEN * IF IT HAS BEEN OR IS HEREAFTER ADVISED OF THE POSSIBILITY OF SUCH * DAMAGES. */#include <sys/types.h>#include <sys/stat.h>#if defined(__OpenBSD__)#include <sys/param.h>#include <sys/mount.h>#else#include <sys/statfs.h>#endif#include <dirent.h>#include <errno.h>#include <fcntl.h> // for host open() flags#include <string.h> // for memset()#include <unistd.h>#include "arch/alpha/alpha_common_syscall_emul.hh"#include "arch/alpha/alpha_tru64_process.hh"#include "base/trace.hh"#include "cpu/base.hh"#include "cpu/exec_context.hh"#include "mem/functional/functional.hh"#include "sim/fake_syscall.hh"#include "sim/host.hh"#include "sim/process.hh"#include "sim/root.hh"#include "sim/syscall_emul.hh"using namespace std;typedef struct stat global_stat;typedef struct statfs global_statfs;typedef struct dirent global_dirent;////// This class encapsulates the types, structures, constants,/// functions, and syscall-number mappings specific to the Alpha Tru64/// syscall interface.///class Tru64 { public: //@{ /// Basic Tru64 types. typedef uint64_t size_t; typedef uint64_t off_t; typedef uint16_t nlink_t; typedef int32_t dev_t; typedef uint32_t uid_t; typedef uint32_t gid_t; typedef uint32_t time_t; typedef uint32_t mode_t; typedef uint32_t ino_t; typedef struct { int val[2]; } quad; typedef quad fsid_t; //@} //@{ /// open(2) flag values. 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; //@} /// This table maps the target open() flags to the corresponding /// host open() flags. static OpenFlagTransTable openFlagTable[]; /// Number of entries in openFlagTable[]. static const int NUM_OPEN_FLAGS; /// Stat buffer. Note that Tru64 v5.0+ use a new "F64" stat /// structure, and a new set of syscall numbers for stat calls. /// On some hosts (notably Linux) define st_atime, st_mtime, and /// st_ctime as macros, so we append an X to get around this. struct F64_stat { dev_t st_dev; //!< st_dev int32_t st_retired1; //!< st_retired1 mode_t st_mode; //!< st_mode nlink_t st_nlink; //!< st_nlink uint16_t st_nlink_reserved; //!< st_nlink_reserved uid_t st_uid; //!< st_uid gid_t st_gid; //!< st_gid dev_t st_rdev; //!< st_rdev dev_t st_ldev; //!< st_ldev off_t st_size; //!< st_size time_t st_retired2; //!< st_retired2 int32_t st_uatime; //!< st_uatime time_t st_retired3; //!< st_retired3 int32_t st_umtime; //!< st_umtime time_t st_retired4; //!< st_retired4 int32_t st_uctime; //!< st_uctime int32_t st_retired5; //!< st_retired5 int32_t st_retired6; //!< st_retired6 uint32_t st_flags; //!< st_flags uint32_t st_gen; //!< st_gen uint64_t st_spare[4]; //!< st_spare[4] ino_t st_ino; //!< st_ino int32_t st_ino_reserved; //!< st_ino_reserved time_t st_atimeX; //!< st_atime int32_t st_atime_reserved; //!< st_atime_reserved time_t st_mtimeX; //!< st_mtime int32_t st_mtime_reserved; //!< st_mtime_reserved time_t st_ctimeX; //!< st_ctime int32_t st_ctime_reserved; //!< st_ctime_reserved uint64_t st_blksize; //!< st_blksize uint64_t st_blocks; //!< st_blocks }; /// Old Tru64 v4.x stat struct. /// Tru64 maintains backwards compatibility with v4.x by /// implementing another set of stat functions using the old /// structure definition and binding them to the old syscall /// numbers. struct pre_F64_stat { dev_t st_dev; ino_t st_ino; mode_t st_mode; nlink_t st_nlink; uid_t st_uid; gid_t st_gid; dev_t st_rdev; off_t st_size; time_t st_atimeX; int32_t st_uatime; time_t st_mtimeX; int32_t st_umtime; time_t st_ctimeX; int32_t st_uctime; uint32_t st_blksize; int32_t st_blocks; uint32_t st_flags; uint32_t st_gen; }; /// For statfs(). struct F64_statfs { int16_t f_type; int16_t f_flags; int32_t f_retired1; int32_t f_retired2; int32_t f_retired3; int32_t f_retired4; int32_t f_retired5; int32_t f_retired6; int32_t f_retired7; fsid_t f_fsid; int32_t f_spare[9]; char f_retired8[90]; char f_retired9[90]; uint64_t dummy[10]; // was union mount_info mount_info; uint64_t f_flags2; int64_t f_spare2[14]; int64_t f_fsize; int64_t f_bsize; int64_t f_blocks; int64_t f_bfree; int64_t f_bavail; int64_t f_files; int64_t f_ffree; char f_mntonname[1024]; char f_mntfromname[1024]; }; /// For old Tru64 v4.x statfs() struct pre_F64_statfs { int16_t f_type; int16_t f_flags; int32_t f_fsize; int32_t f_bsize; int32_t f_blocks; int32_t f_bfree; int32_t f_bavail; int32_t f_files; int32_t f_ffree; fsid_t f_fsid; int32_t f_spare[9]; char f_mntonname[90]; char f_mntfromname[90]; uint64_t dummy[10]; // was union mount_info mount_info; }; /// For getdirentries(). struct dirent { ino_t d_ino; //!< file number of entry uint16_t d_reclen; //!< length of this record uint16_t d_namlen; //!< length of string in d_name char d_name[256]; //!< dummy name length }; /// Length of strings in struct utsname (plus 1 for null char). static const int _SYS_NMLN = 32; /// 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. }; //@{ /// ioctl() command codes. 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; // TIOCGETS not defined in tru64, so I made up a number static const unsigned TIOCGETS = 0x40000000; static const unsigned TIOCGETA = 0x402c7413; //@} /// Resource enumeration 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 }; /// Limit struct for getrlimit/setrlimit. struct rlimit { uint64_t rlim_cur; //!< soft limit uint64_t rlim_max; //!< hard limit }; /// For mmap(). static const unsigned TGT_MAP_ANONYMOUS = 0x10; //@{ /// For getsysinfo(). static const unsigned GSI_PLATFORM_NAME = 103; //!< platform name as string static const unsigned GSI_CPU_INFO = 59; //!< CPU information static const unsigned GSI_PROC_TYPE = 60; //!< get proc_type static const unsigned GSI_MAX_CPU = 30; //!< max # cpu's on this machine static const unsigned GSI_CPUS_IN_BOX = 55; //!< number of CPUs in system static const unsigned GSI_PHYSMEM = 19; //!< Physical memory in KB static const unsigned GSI_CLK_TCK = 42; //!< clock freq in Hz //@} /// For getsysinfo() GSI_CPU_INFO option. struct cpu_info { uint32_t current_cpu; //!< current_cpu uint32_t cpus_in_box; //!< cpus_in_box uint32_t cpu_type; //!< cpu_type uint32_t ncpus; //!< ncpus uint64_t cpus_present; //!< cpus_present uint64_t cpus_running; //!< cpus_running uint64_t cpu_binding; //!< cpu_binding uint64_t cpu_ex_binding; //!< cpu_ex_binding uint32_t mhz; //!< mhz uint32_t unused[3]; //!< future expansion }; //@{ /// For setsysinfo(). static const unsigned SSI_IEEE_FP_CONTROL = 14; //!< ieee_set_fp_control() //@} /// For gettimeofday. struct timeval { uint32_t tv_sec; //!< seconds uint32_t tv_usec; //!< microseconds }; //@{ /// For getrusage(). static const int RUSAGE_THREAD = 1; static const int RUSAGE_SELF = 0; static const int RUSAGE_CHILDREN = -1; //@} /// For getrusage(). struct rusage { struct timeval ru_utime; //!< user time used struct timeval ru_stime; //!< system time used uint64_t ru_maxrss; //!< ru_maxrss uint64_t ru_ixrss; //!< integral shared memory size uint64_t ru_idrss; //!< integral unshared data " uint64_t ru_isrss; //!< integral unshared stack " uint64_t ru_minflt; //!< page reclaims - total vmfaults uint64_t ru_majflt; //!< page faults uint64_t ru_nswap; //!< swaps uint64_t ru_inblock; //!< block input operations uint64_t ru_oublock; //!< block output operations uint64_t ru_msgsnd; //!< messages sent uint64_t ru_msgrcv; //!< messages received uint64_t ru_nsignals; //!< signals received uint64_t ru_nvcsw; //!< voluntary context switches uint64_t ru_nivcsw; //!< involuntary " }; /// For sigreturn(). struct sigcontext { int64_t sc_onstack; //!< sigstack state to restore int64_t sc_mask; //!< signal mask to restore int64_t sc_pc; //!< pc at time of signal int64_t sc_ps; //!< psl to retore int64_t sc_regs[32]; //!< processor regs 0 to 31 int64_t sc_ownedfp; //!< fp has been used int64_t sc_fpregs[32]; //!< fp regs 0 to 31 uint64_t sc_fpcr; //!< floating point control reg uint64_t sc_fp_control; //!< software fpcr int64_t sc_reserved1; //!< reserved for kernel uint32_t sc_kreserved1; //!< reserved for kernel uint32_t sc_kreserved2; //!< reserved for kernel size_t sc_ssize; //!< stack size caddr_t sc_sbase; //!< stack start uint64_t sc_traparg_a0; //!< a0 argument to trap on exc uint64_t sc_traparg_a1; //!< a1 argument to trap on exc uint64_t sc_traparg_a2; //!< a2 argument to trap on exc uint64_t sc_fp_trap_pc; //!< imprecise pc uint64_t sc_fp_trigger_sum; //!< Exception summary at trigg uint64_t sc_fp_trigger_inst; //!< Instruction at trigger pc }; /// For table(). static const int TBL_SYSINFO = 12; /// For table().⌨️ 快捷键说明
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