src/arch/sparc/linux/linux.hh - public/gem5 - Git at Google

 /*
  * Copyright (c) 2003-2005 The Regents of The University of Michigan
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met: redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer;
  * redistributions in binary form must reproduce the above copyright
  * notice, this list of conditions and the following disclaimer in the
  * documentation and/or other materials provided with the distribution;
  * neither the name of the copyright holders nor the names of its
  * contributors may be used to endorse or promote products derived from
  * this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * 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: Gabe Black
  */

 #ifndef __ARCH_SPARC_LINUX_LINUX_HH__
 #define __ARCH_SPARC_LINUX_LINUX_HH__

 #include "arch/sparc/utility.hh"
 #include "kern/linux/linux.hh"

 class SparcLinux : public Linux
 {
   public:

     typedef struct {
         uint32_t st_dev;
         char __pad1[4];
         uint64_t st_ino;
         uint32_t st_mode;
         uint16_t st_nlink;
         uint32_t st_uid;
         uint32_t st_gid;
         uint32_t st_rdev;
         char __pad2[4];
         int64_t st_size;
         int64_t st_atimeX;
         int64_t st_mtimeX;
         int64_t st_ctimeX;
         int64_t st_blksize;
         int64_t st_blocks;
         uint64_t __unused4[2];
     } tgt_stat;

     // SPARC receives weird subsignals for several of its signals. If you
     // find yourself needing to implement these in detail, look at the
     // Linux source.
     static const int TGT_SIGHUP         = 0x000001;
     static const int TGT_SIGINT         = 0x000002;
     static const int TGT_SIGQUIT        = 0x000003;
     static const int TGT_SIGILL         = 0x000004;
     static const int TGT_SIGTRAP        = 0x000005;
     static const int TGT_SIGABRT        = 0x000006;
     static const int TGT_SIGIOT         = 0x000006;
     static const int TGT_SIGEMT         = 0x000007;
     static const int TGT_SIGFPE         = 0x000008;
     static const int TGT_SIGKILL        = 0x000009;
     static const int TGT_SIGBUS         = 0x00000a;
     static const int TGT_SIGSEGV        = 0x00000b;
     static const int TGT_SIGSYS         = 0x00000c;
     static const int TGT_SIGPIPE        = 0x00000d;
     static const int TGT_SIGALRM        = 0x00000e;
     static const int TGT_SIGTERM        = 0x00000f;
     static const int TGT_SIGURG         = 0x000010;
     static const int TGT_SIGSTOP        = 0x000011;
     static const int TGT_SIGTSTP        = 0x000012;
     static const int TGT_SIGCONT        = 0x000013;
     static const int TGT_SIGCHLD        = 0x000014;
     static const int TGT_SIGTTIN        = 0x000015;
     static const int TGT_SIGTTOU        = 0x000016;
     static const int TGT_SIGIO          = 0x000017;
     static const int TGT_SIGPOLL        = 0x000017;
     static const int TGT_SIGXCPU        = 0x000018;
     static const int TGT_SIGXFSZ        = 0x000019;
     static const int TGT_SIGVTALRM      = 0x00001a;
     static const int TGT_SIGPROF        = 0x00001b;
     static const int TGT_SIGWINCH       = 0x00001c;
     static const int TGT_SIGLOST        = 0x00001d;
     static const int TGT_SIGPWR         = 0x00001d;
     static const int TGT_SIGUSR1        = 0x00001e;
     static const int TGT_SIGUSR2        = 0x00001f;

     static SyscallFlagTransTable openFlagTable[];

     static const int TGT_O_RDONLY       = 0x00000000;   //!< O_RDONLY
     static const int TGT_O_WRONLY       = 0x00000001;   //!< O_WRONLY
     static const int TGT_O_RDWR         = 0x00000002;   //!< O_RDWR
     static const int TGT_O_NONBLOCK     = 0x00004000;   //!< O_NONBLOCK
     static const int TGT_O_APPEND       = 0x00000008;   //!< O_APPEND
     static const int TGT_FASYNC         = 0x00000040;   //!< FASYNC
     static const int TGT_O_CREAT        = 0x00000200;   //!< O_CREAT
     static const int TGT_O_TRUNC        = 0x00000400;   //!< O_TRUNC
     static const int TGT_O_EXCL         = 0x00000800;   //!< O_EXCL
     static const int TGT_O_NOCTTY       = 0x00008000;   //!< O_NOCTTY
     static const int TGT_O_DSYNC        = 0x00002000;   //!< O_DSYNC
     static const int TGT_O_LARGEFILE    = 0x00040000;   //!< O_LARGEFILE
     static const int TGT_O_DIRECT       = 0x00100000;   //!< O_DIRECT
     static const int TGT_O_NOATIME      = 0x00200000;   //!< O_NOATIME
     static const int TGT_O_CLOEXEC      = 0x00400000;   //!< O_CLOEXEC
     static const int TGT_O_SYNC         = 0x00802000;   //!< O_SYNC
     static const int TGT_O_PATH         = 0x01000000;   //!< O_PATH

     static const int TGT_O_DIRECTORY    = 000200000;   //!< O_DIRECTORY
     static const int TGT_O_NOFOLLOW     = 000400000;   //!< O_NOFOLLOW

     static const int NUM_OPEN_FLAGS;

     static const unsigned TGT_MAP_SHARED        = 0x00001;
     static const unsigned TGT_MAP_PRIVATE       = 0x00002;
     static const unsigned TGT_MAP_ANON          = 0x00020;
     static const unsigned TGT_MAP_DENYWRITE     = 0x00800;
     static const unsigned TGT_MAP_EXECUTABLE    = 0x01000;
     static const unsigned TGT_MAP_FILE          = 0x00000;
     static const unsigned TGT_MAP_GROWSDOWN     = 0x00200;
     static const unsigned TGT_MAP_HUGETLB       = 0x40000;
     static const unsigned TGT_MAP_LOCKED        = 0x00100;
     static const unsigned TGT_MAP_NONBLOCK      = 0x10000;
     static const unsigned TGT_MAP_NORESERVE     = 0x00040;
     static const unsigned TGT_MAP_POPULATE      = 0x08000;
     static const unsigned TGT_MAP_STACK         = 0x20000;
     static const unsigned TGT_MAP_ANONYMOUS     = 0x00020;
     static const unsigned TGT_MAP_FIXED         = 0x00010;
     static const unsigned TGT_MAP_INHERIT       = 0x00080;

     static const unsigned NUM_MMAP_FLAGS;

     typedef struct {
         int64_t  uptime;    /* Seconds since boot */
         uint64_t loads[3];  /* 1, 5, and 15 minute load averages */
         uint64_t totalram;  /* Total usable main memory size */
         uint64_t freeram;   /* Available memory size */
         uint64_t sharedram; /* Amount of shared memory */
         uint64_t bufferram; /* Memory used by buffers */
         uint64_t totalswap; /* Total swap space size */
         uint64_t freeswap;  /* swap space still available */
         uint16_t procs;     /* Number of current processes */
         uint64_t totalhigh; /* Total high memory size */
         uint64_t freehigh;  /* Available high memory size */
         uint64_t mem_unit;  /* Memory unit size in bytes */
     } tgt_sysinfo;

     //@{
     /// ioctl() command codes.
     /// These were calculated using the SPARC Linux headers on an x86
     /// machine and thus may not be correct.  It would be good to
     /// verify/update these values on an actual SPARC Linux machine.
     static const unsigned TGT_TCGETA    = 0x40125401;
     static const unsigned TGT_TCSETAW   = 0x80125403;
     static const unsigned TGT_TCGETS    = 0x40385408;
     static const unsigned TGT_FIONREAD  = 0x4004667f;
     static const unsigned TGT_TIOCGETP  = 0x40067408;
     static const unsigned TGT_TIOCSETP  = 0x80067409;
     static const unsigned TGT_TIOCSETN  = 0x8006740a;
     //@}

     static bool
     isTtyReq(unsigned req)
     {
         switch (req) {
           case TGT_TIOCGETP:
           case TGT_TIOCSETP:
           case TGT_TIOCSETN:
           case TGT_TCGETS:
           case TGT_TCGETA:
           case TGT_TCSETAW:
             return true;
           default:
             return false;
         }
     }

     static void
     archClone(uint64_t flags,
               Process *pp, Process *cp,
               ThreadContext *ptc, ThreadContext *ctc,
               uint64_t stack, uint64_t tls)
     {
         SparcISA::copyRegs(ptc, ctc);
         ctc->setIntReg(SparcISA::NumIntArchRegs + 6, 0);
         ctc->setIntReg(SparcISA::NumIntArchRegs + 4, 0);
         ctc->setIntReg(SparcISA::NumIntArchRegs + 3, SparcISA::NWindows - 2);
         ctc->setIntReg(SparcISA::NumIntArchRegs + 5, SparcISA::NWindows);
         ctc->setMiscReg(SparcISA::MISCREG_CWP, 0);
         ctc->setIntReg(SparcISA::NumIntArchRegs + 7, 0);
         ctc->setMiscRegNoEffect(SparcISA::MISCREG_TL, 0);
         ctc->setMiscReg(SparcISA::MISCREG_ASI, SparcISA::ASI_PRIMARY);
         for (int y = 8; y < 32; y++)
             ctc->setIntReg(y, ptc->readIntReg(y));

         if (stack)
             ctc->setIntReg(SparcISA::StackPointerReg, stack);
     }
 };

 class Sparc32Linux : public SparcLinux
 {
   public:

     typedef struct {
         uint64_t st_dev;
         uint64_t st_ino;
         uint32_t st_mode;
         uint32_t st_nlink;
         uint32_t st_uid;
         uint32_t st_gid;
         uint64_t st_rdev;
         uint8_t __pad3[8];
         int64_t st_size;
         int32_t st_blksize;
         uint8_t __pad4[8];
         int64_t st_blocks;
         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;
         uint32_t __unused4;
         uint32_t __unused5;
     } tgt_stat64;

     typedef struct {
         int32_t  uptime;    /* Seconds since boot */
         uint32_t loads[3];  /* 1, 5, and 15 minute load averages */
         uint32_t totalram;  /* Total usable main memory size */
         uint32_t freeram;   /* Available memory size */
         uint32_t sharedram; /* Amount of shared memory */
         uint32_t bufferram; /* Memory used by buffers */
         uint32_t totalswap; /* Total swap space size */
         uint32_t freeswap;  /* swap space still available */
         uint16_t procs;     /* Number of current processes */
         uint32_t totalhigh; /* Total high memory size */
         uint32_t freehigh;  /* Available high memory size */
         uint32_t mem_unit;  /* Memory unit size in bytes */
     } tgt_sysinfo;

     /// Resource constants for getrlimit() (overide some generics).
     static const unsigned TGT_RLIMIT_NPROC = 7;
     static const unsigned TGT_RLIMIT_NOFILE = 6;
 };

 #endif
	/*
	* Copyright (c) 2003-2005 The Regents of The University of Michigan
	* All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions are
	* met: redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer;
	* redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution;
	* neither the name of the copyright holders nor the names of its
	* contributors may be used to endorse or promote products derived from
	* this software without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	* 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: Gabe Black
	*/

	#ifndef __ARCH_SPARC_LINUX_LINUX_HH__
	#define __ARCH_SPARC_LINUX_LINUX_HH__

	#include "arch/sparc/utility.hh"
	#include "kern/linux/linux.hh"

	class SparcLinux : public Linux
	{
	public:

	typedef struct {
	uint32_t st_dev;
	char __pad1[4];
	uint64_t st_ino;
	uint32_t st_mode;
	uint16_t st_nlink;
	uint32_t st_uid;
	uint32_t st_gid;
	uint32_t st_rdev;
	char __pad2[4];
	int64_t st_size;
	int64_t st_atimeX;
	int64_t st_mtimeX;
	int64_t st_ctimeX;
	int64_t st_blksize;
	int64_t st_blocks;
	uint64_t __unused4[2];
	} tgt_stat;

	// SPARC receives weird subsignals for several of its signals. If you
	// find yourself needing to implement these in detail, look at the
	// Linux source.
	static const int TGT_SIGHUP = 0x000001;
	static const int TGT_SIGINT = 0x000002;
	static const int TGT_SIGQUIT = 0x000003;
	static const int TGT_SIGILL = 0x000004;
	static const int TGT_SIGTRAP = 0x000005;
	static const int TGT_SIGABRT = 0x000006;
	static const int TGT_SIGIOT = 0x000006;
	static const int TGT_SIGEMT = 0x000007;
	static const int TGT_SIGFPE = 0x000008;
	static const int TGT_SIGKILL = 0x000009;
	static const int TGT_SIGBUS = 0x00000a;
	static const int TGT_SIGSEGV = 0x00000b;
	static const int TGT_SIGSYS = 0x00000c;
	static const int TGT_SIGPIPE = 0x00000d;
	static const int TGT_SIGALRM = 0x00000e;
	static const int TGT_SIGTERM = 0x00000f;
	static const int TGT_SIGURG = 0x000010;
	static const int TGT_SIGSTOP = 0x000011;
	static const int TGT_SIGTSTP = 0x000012;
	static const int TGT_SIGCONT = 0x000013;
	static const int TGT_SIGCHLD = 0x000014;
	static const int TGT_SIGTTIN = 0x000015;
	static const int TGT_SIGTTOU = 0x000016;
	static const int TGT_SIGIO = 0x000017;
	static const int TGT_SIGPOLL = 0x000017;
	static const int TGT_SIGXCPU = 0x000018;
	static const int TGT_SIGXFSZ = 0x000019;
	static const int TGT_SIGVTALRM = 0x00001a;
	static const int TGT_SIGPROF = 0x00001b;
	static const int TGT_SIGWINCH = 0x00001c;
	static const int TGT_SIGLOST = 0x00001d;
	static const int TGT_SIGPWR = 0x00001d;
	static const int TGT_SIGUSR1 = 0x00001e;
	static const int TGT_SIGUSR2 = 0x00001f;

	static SyscallFlagTransTable openFlagTable[];

	static const int TGT_O_RDONLY = 0x00000000; //!< O_RDONLY
	static const int TGT_O_WRONLY = 0x00000001; //!< O_WRONLY
	static const int TGT_O_RDWR = 0x00000002; //!< O_RDWR
	static const int TGT_O_NONBLOCK = 0x00004000; //!< O_NONBLOCK
	static const int TGT_O_APPEND = 0x00000008; //!< O_APPEND
	static const int TGT_FASYNC = 0x00000040; //!< FASYNC
	static const int TGT_O_CREAT = 0x00000200; //!< O_CREAT
	static const int TGT_O_TRUNC = 0x00000400; //!< O_TRUNC
	static const int TGT_O_EXCL = 0x00000800; //!< O_EXCL
	static const int TGT_O_NOCTTY = 0x00008000; //!< O_NOCTTY
	static const int TGT_O_DSYNC = 0x00002000; //!< O_DSYNC
	static const int TGT_O_LARGEFILE = 0x00040000; //!< O_LARGEFILE
	static const int TGT_O_DIRECT = 0x00100000; //!< O_DIRECT
	static const int TGT_O_NOATIME = 0x00200000; //!< O_NOATIME
	static const int TGT_O_CLOEXEC = 0x00400000; //!< O_CLOEXEC
	static const int TGT_O_SYNC = 0x00802000; //!< O_SYNC
	static const int TGT_O_PATH = 0x01000000; //!< O_PATH

	static const int TGT_O_DIRECTORY = 000200000; //!< O_DIRECTORY
	static const int TGT_O_NOFOLLOW = 000400000; //!< O_NOFOLLOW

	static const int NUM_OPEN_FLAGS;

	static const unsigned TGT_MAP_SHARED = 0x00001;
	static const unsigned TGT_MAP_PRIVATE = 0x00002;
	static const unsigned TGT_MAP_ANON = 0x00020;
	static const unsigned TGT_MAP_DENYWRITE = 0x00800;
	static const unsigned TGT_MAP_EXECUTABLE = 0x01000;
	static const unsigned TGT_MAP_FILE = 0x00000;
	static const unsigned TGT_MAP_GROWSDOWN = 0x00200;
	static const unsigned TGT_MAP_HUGETLB = 0x40000;
	static const unsigned TGT_MAP_LOCKED = 0x00100;
	static const unsigned TGT_MAP_NONBLOCK = 0x10000;
	static const unsigned TGT_MAP_NORESERVE = 0x00040;
	static const unsigned TGT_MAP_POPULATE = 0x08000;
	static const unsigned TGT_MAP_STACK = 0x20000;
	static const unsigned TGT_MAP_ANONYMOUS = 0x00020;
	static const unsigned TGT_MAP_FIXED = 0x00010;
	static const unsigned TGT_MAP_INHERIT = 0x00080;

	static const unsigned NUM_MMAP_FLAGS;

	typedef struct {
	int64_t uptime; /* Seconds since boot */
	uint64_t loads[3]; /* 1, 5, and 15 minute load averages */
	uint64_t totalram; /* Total usable main memory size */
	uint64_t freeram; /* Available memory size */
	uint64_t sharedram; /* Amount of shared memory */
	uint64_t bufferram; /* Memory used by buffers */
	uint64_t totalswap; /* Total swap space size */
	uint64_t freeswap; /* swap space still available */
	uint16_t procs; /* Number of current processes */
	uint64_t totalhigh; /* Total high memory size */
	uint64_t freehigh; /* Available high memory size */
	uint64_t mem_unit; /* Memory unit size in bytes */
	} tgt_sysinfo;

	//@{
	/// ioctl() command codes.
	/// These were calculated using the SPARC Linux headers on an x86
	/// machine and thus may not be correct. It would be good to
	/// verify/update these values on an actual SPARC Linux machine.
	static const unsigned TGT_TCGETA = 0x40125401;
	static const unsigned TGT_TCSETAW = 0x80125403;
	static const unsigned TGT_TCGETS = 0x40385408;
	static const unsigned TGT_FIONREAD = 0x4004667f;
	static const unsigned TGT_TIOCGETP = 0x40067408;
	static const unsigned TGT_TIOCSETP = 0x80067409;
	static const unsigned TGT_TIOCSETN = 0x8006740a;
	//@}

	static bool
	isTtyReq(unsigned req)
	{
	switch (req) {
	case TGT_TIOCGETP:
	case TGT_TIOCSETP:
	case TGT_TIOCSETN:
	case TGT_TCGETS:
	case TGT_TCGETA:
	case TGT_TCSETAW:
	return true;
	default:
	return false;
	}
	}

	static void
	archClone(uint64_t flags,
	Process pp, Process cp,
	ThreadContext ptc, ThreadContext ctc,
	uint64_t stack, uint64_t tls)
	{
	SparcISA::copyRegs(ptc, ctc);
	ctc->setIntReg(SparcISA::NumIntArchRegs + 6, 0);
	ctc->setIntReg(SparcISA::NumIntArchRegs + 4, 0);
	ctc->setIntReg(SparcISA::NumIntArchRegs + 3, SparcISA::NWindows - 2);
	ctc->setIntReg(SparcISA::NumIntArchRegs + 5, SparcISA::NWindows);
	ctc->setMiscReg(SparcISA::MISCREG_CWP, 0);
	ctc->setIntReg(SparcISA::NumIntArchRegs + 7, 0);
	ctc->setMiscRegNoEffect(SparcISA::MISCREG_TL, 0);
	ctc->setMiscReg(SparcISA::MISCREG_ASI, SparcISA::ASI_PRIMARY);
	for (int y = 8; y < 32; y++)
	ctc->setIntReg(y, ptc->readIntReg(y));

	if (stack)
	ctc->setIntReg(SparcISA::StackPointerReg, stack);
	}
	};

	class Sparc32Linux : public SparcLinux
	{
	public:

	typedef struct {
	uint64_t st_dev;
	uint64_t st_ino;
	uint32_t st_mode;
	uint32_t st_nlink;
	uint32_t st_uid;
	uint32_t st_gid;
	uint64_t st_rdev;
	uint8_t __pad3[8];
	int64_t st_size;
	int32_t st_blksize;
	uint8_t __pad4[8];
	int64_t st_blocks;
	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;
	uint32_t __unused4;
	uint32_t __unused5;
	} tgt_stat64;

	typedef struct {
	int32_t uptime; /* Seconds since boot */
	uint32_t loads[3]; /* 1, 5, and 15 minute load averages */
	uint32_t totalram; /* Total usable main memory size */
	uint32_t freeram; /* Available memory size */
	uint32_t sharedram; /* Amount of shared memory */
	uint32_t bufferram; /* Memory used by buffers */
	uint32_t totalswap; /* Total swap space size */
	uint32_t freeswap; /* swap space still available */
	uint16_t procs; /* Number of current processes */
	uint32_t totalhigh; /* Total high memory size */
	uint32_t freehigh; /* Available high memory size */
	uint32_t mem_unit; /* Memory unit size in bytes */
	} tgt_sysinfo;

	/// Resource constants for getrlimit() (overide some generics).
	static const unsigned TGT_RLIMIT_NPROC = 7;
	static const unsigned TGT_RLIMIT_NOFILE = 6;
	};

	#endif