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gem5 / public / gem5 / 68d612c3304a923923bf883f9e334c5305639673 / . / src / arch / arm / linux / linux.hh
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/*
* Copyright (c) 2010, 2011-2012, 2015 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Copyright (c) 2003-2005 The Regents of The University of Michigan
* Copyright (c) 2007-2008 The Florida State University
* 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.
*/
#ifndef __ARCH_ARM_LINUX_LINUX_HH__
#define __ARCH_ARM_LINUX_LINUX_HH__
#include "arch/arm/utility.hh"
#include "base/compiler.hh"
#include "kern/linux/linux.hh"
class ArmLinux : public Linux
{
public:
static const ByteOrder byteOrder = ByteOrder::little;
static void
archClone(uint64_t flags,
Process *pp, Process *cp,
ThreadContext *ptc, ThreadContext *ctc,
uint64_t stack, uint64_t tls)
{
ArmISA::copyRegs(ptc, ctc);
if (flags & TGT_CLONE_SETTLS) {
/* TPIDR_EL0 is architecturally mapped to TPIDRURW, so
* this works for both aarch32 and aarch64. */
ctc->setMiscReg(ArmISA::MISCREG_TPIDR_EL0, tls);
}
}
};
class ArmLinux32 : public ArmLinux
{
public:
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_SIGBUS = 0x000007;
static const int TGT_SIGFPE = 0x000008;
static const int TGT_SIGKILL = 0x000009;
static const int TGT_SIGUSR1 = 0x00000a;
static const int TGT_SIGSEGV = 0x00000b;
static const int TGT_SIGUSR2 = 0x00000c;
static const int TGT_SIGPIPE = 0x00000d;
static const int TGT_SIGALRM = 0x00000e;
static const int TGT_SIGTERM = 0x00000f;
static const int TGT_SIGSTKFLT = 0x000010;
static const int TGT_SIGCHLD = 0x000011;
static const int TGT_SIGCONT = 0x000012;
static const int TGT_SIGSTOP = 0x000013;
static const int TGT_SIGTSTP = 0x000014;
static const int TGT_SIGTTIN = 0x000015;
static const int TGT_SIGTTOU = 0x000016;
static const int TGT_SIGURG = 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_SIGIO = 0x00001d;
static const int TGT_SIGPOLL = 0x00001d;
static const int TGT_SIGPWR = 0x00001e;
static const int TGT_SIGSYS = 0x00001f;
static const int TGT_SIGUNUSED = 0x00001f;
/// This table maps the target open() flags to the corresponding
/// host open() flags.
static SyscallFlagTransTable openFlagTable[];
/// Number of entries in openFlagTable[].
static const int NUM_OPEN_FLAGS;
//@{
/// Basic ARM Linux types
typedef uint32_t size_t;
typedef uint32_t off_t;
typedef int32_t time_t;
typedef int32_t clock_t;
//@}
//@{
/// open(2) flag values.
static const int TGT_O_RDONLY = 000000000; //!< O_RDONLY
static const int TGT_O_WRONLY = 000000001; //!< O_WRONLY
static const int TGT_O_RDWR = 000000002; //!< O_RDWR
static const int TGT_O_CREAT = 000000100; //!< O_CREAT
static const int TGT_O_EXCL = 000000200; //!< O_EXCL
static const int TGT_O_NOCTTY = 000000400; //!< O_NOCTTY
static const int TGT_O_TRUNC = 000001000; //!< O_TRUNC
static const int TGT_O_APPEND = 000002000; //!< O_APPEND
static const int TGT_O_NONBLOCK = 000004000; //!< O_NONBLOCK
static const int TGT_O_DSYNC = 000010000; //!< O_DSYNC
static const int TGT_FASYNC = 000020000; //!< FASYNC
static const int TGT_O_DIRECT = 000200000; //!< O_DIRECT
static const int TGT_O_LARGEFILE = 000400000; //!< O_LARGEFILE
static const int TGT_O_DIRECTORY = 000040000; //!< O_DIRECTORY
static const int TGT_O_NOFOLLOW = 000100000; //!< O_NOFOLLOW
static const int TGT_O_NOATIME = 001000000; //!< O_NOATIME
static const int TGT_O_CLOEXEC = 002000000; //!< O_NOATIME
static const int TGT_O_SYNC = 004010000; //!< O_SYNC
static const int TGT_O_PATH = 010000000; //!< O_PATH
//@}
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 = 0x00100;
static const unsigned TGT_MAP_HUGETLB = 0x40000;
static const unsigned TGT_MAP_LOCKED = 0x02000;
static const unsigned TGT_MAP_NONBLOCK = 0x10000;
static const unsigned TGT_MAP_NORESERVE = 0x04000;
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 NUM_MMAP_FLAGS;
/// For table().
static const int TBL_SYSINFO = 12;
/// Limit struct for getrlimit/setrlimit.
struct rlimit {
uint32_t rlim_cur; //!< soft limit
uint32_t rlim_max; //!< hard limit
};
/// For gettimeofday().
struct timeval {
int32_t tv_sec; //!< seconds
int32_t tv_usec; //!< microseconds
};
struct timespec {
int32_t tv_sec; //!< seconds
int32_t tv_nsec; //!< nanoseconds
};
// For writev/readv
struct tgt_iovec {
uint32_t iov_base; // void *
uint32_t iov_len;
};
typedef struct {
uint32_t st_dev;
uint32_t st_ino;
uint16_t st_mode;
uint16_t st_nlink;
uint16_t st_uid;
uint16_t st_gid;
uint32_t st_rdev;
uint32_t __pad1;
uint32_t st_size;
uint32_t st_blksize;
uint32_t __pad2;
uint32_t st_blocks;
uint32_t st_atimeX;
uint32_t st_atime_nsec;
uint32_t st_mtimeX;
uint32_t st_mtime_nsec;
uint32_t st_ctimeX;
uint32_t st_ctime_nsec;
} tgt_stat;
typedef struct {
uint64_t st_dev;
uint8_t __pad0[4];
uint32_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[4];
M5_ALIGNED(8) int64_t st_size;
uint32_t st_blksize;
M5_ALIGNED(8) uint64_t st_blocks;
uint32_t st_atimeX;
uint32_t st_atime_nsec;
uint32_t st_mtimeX;
uint32_t st_mtime_nsec;
uint32_t st_ctimeX;
uint32_t st_ctime_nsec;
uint64_t st_ino;
} 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;
/// For getrusage().
struct rusage {
struct timeval ru_utime; //!< user time used
struct timeval ru_stime; //!< system time used
int32_t ru_maxrss; //!< max rss
int32_t ru_ixrss; //!< integral shared memory size
int32_t ru_idrss; //!< integral unshared data "
int32_t ru_isrss; //!< integral unshared stack "
int32_t ru_minflt; //!< page reclaims - total vmfaults
int32_t ru_majflt; //!< page faults
int32_t ru_nswap; //!< swaps
int32_t ru_inblock; //!< block input operations
int32_t ru_oublock; //!< block output operations
int32_t ru_msgsnd; //!< messages sent
int32_t ru_msgrcv; //!< messages received
int32_t ru_nsignals; //!< signals received
int32_t ru_nvcsw; //!< voluntary context switches
int32_t ru_nivcsw; //!< involuntary "
};
/// For times().
struct tms {
int32_t tms_utime; //!< user time
int32_t tms_stime; //!< system time
int32_t tms_cutime; //!< user time of children
int32_t tms_cstime; //!< system time of children
};
static void
archClone(uint64_t flags,
Process *pp, Process *cp,
ThreadContext *ptc, ThreadContext *ctc,
uint64_t stack, uint64_t tls)
{
ArmLinux::archClone(flags, pp, cp, ptc, ctc, stack, tls);
if (stack)
ctc->setIntReg(ArmISA::INTREG_SP, stack);
}
};
class ArmLinux64 : public ArmLinux
{
public:
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_SIGBUS = 0x000007;
static const int TGT_SIGFPE = 0x000008;
static const int TGT_SIGKILL = 0x000009;
static const int TGT_SIGUSR1 = 0x00000a;
static const int TGT_SIGSEGV = 0x00000b;
static const int TGT_SIGUSR2 = 0x00000c;
static const int TGT_SIGPIPE = 0x00000d;
static const int TGT_SIGALRM = 0x00000e;
static const int TGT_SIGTERM = 0x00000f;
static const int TGT_SIGSTKFLT = 0x000010;
static const int TGT_SIGCHLD = 0x000011;
static const int TGT_SIGCONT = 0x000012;
static const int TGT_SIGSTOP = 0x000013;
static const int TGT_SIGTSTP = 0x000014;
static const int TGT_SIGTTIN = 0x000015;
static const int TGT_SIGTTOU = 0x000016;
static const int TGT_SIGURG = 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_SIGIO = 0x00001d;
static const int TGT_SIGPOLL = 0x00001d;
static const int TGT_SIGPWR = 0x00001e;
static const int TGT_SIGSYS = 0x00001f;
static const int TGT_SIGUNUSED = 0x00001f;
/// This table maps the target open() flags to the corresponding
/// host open() flags.
static SyscallFlagTransTable openFlagTable[];
/// Number of entries in openFlagTable[].
static const int NUM_OPEN_FLAGS;
//@{
/// Basic ARM Linux types
typedef uint64_t size_t;
typedef uint64_t off_t;
typedef int64_t time_t;
typedef int64_t clock_t;
//@}
//@{
/// open(2) flag values.
static const int TGT_O_RDONLY = 000000000; //!< O_RDONLY
static const int TGT_O_WRONLY = 000000001; //!< O_WRONLY
static const int TGT_O_RDWR = 000000002; //!< O_RDWR
static const int TGT_O_CREAT = 000000100; //!< O_CREAT
static const int TGT_O_EXCL = 000000200; //!< O_EXCL
static const int TGT_O_NOCTTY = 000000400; //!< O_NOCTTY
static const int TGT_O_TRUNC = 000001000; //!< O_TRUNC
static const int TGT_O_APPEND = 000002000; //!< O_APPEND
static const int TGT_O_NONBLOCK = 000004000; //!< O_NONBLOCK
static const int TGT_O_DSYNC = 000010000; //!< O_DSYNC
static const int TGT_FASYNC = 000020000; //!< FASYNC
static const int TGT_O_DIRECT = 000200000; //!< O_DIRECT
static const int TGT_O_LARGEFILE = 000400000; //!< O_LARGEFILE
static const int TGT_O_DIRECTORY = 000040000; //!< O_DIRECTORY
static const int TGT_O_NOFOLLOW = 000100000; //!< O_NOFOLLOW
static const int TGT_O_NOATIME = 001000000; //!< O_NOATIME
static const int TGT_O_CLOEXEC = 002000000; //!< O_NOATIME
static const int TGT_O_SYNC = 004010000; //!< O_SYNC
static const int TGT_O_PATH = 010000000; //!< O_PATH
//@}
/// For mmap().
static SyscallFlagTransTable mmapFlagTable[];
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 = 0x00100;
static const unsigned TGT_MAP_HUGETLB = 0x40000;
static const unsigned TGT_MAP_LOCKED = 0x02000;
static const unsigned TGT_MAP_NONBLOCK = 0x10000;
static const unsigned TGT_MAP_NORESERVE = 0x04000;
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 NUM_MMAP_FLAGS;
//@{
/// For getrusage().
static const int TGT_RUSAGE_SELF = 0;
static const int TGT_RUSAGE_CHILDREN = -1;
static const int TGT_RUSAGE_BOTH = -2;
//@}
//@{
/// ioctl() command codes.
static const unsigned TIOCGETP_ = 0x5401;
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;
static const unsigned TIOCGETS_ = 0x402c7413;
static const unsigned TIOCGETA_ = 0x5405;
static const unsigned TCSETAW_ = 0x5407; // 2.6.15 kernel
//@}
/// For table().
static const int TBL_SYSINFO = 12;
/// Resource enumeration for getrlimit().
enum rlimit_resources {
TGT_RLIMIT_CPU = 0,
TGT_RLIMIT_FSIZE = 1,
TGT_RLIMIT_DATA = 2,
TGT_RLIMIT_STACK = 3,
TGT_RLIMIT_CORE = 4,
TGT_RLIMIT_RSS = 5,
TGT_RLIMIT_NPROC = 6,
TGT_RLIMIT_NOFILE = 7,
TGT_RLIMIT_MEMLOCK = 8,
TGT_RLIMIT_AS = 9,
TGT_RLIMIT_LOCKS = 10
};
/// Limit struct for getrlimit/setrlimit.
struct rlimit {
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
};
struct timespec {
int64_t tv_sec; //!< seconds
int64_t tv_nsec; //!< nanoseconds
};
// For writev/readv
struct tgt_iovec {
uint64_t iov_base; // void *
uint64_t iov_len;
};
typedef struct {
uint64_t st_dev;
uint64_t st_ino;
uint64_t st_nlink;
uint32_t st_mode;
uint32_t st_uid;
uint32_t st_gid;
uint32_t __pad0;
uint64_t st_rdev;
uint64_t st_size;
uint64_t st_blksize;
uint64_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;
} tgt_stat;
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;
uint32_t __pad0;
uint64_t st_rdev;
uint64_t st_size;
uint64_t st_blksize;
uint64_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;
} tgt_stat64;
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 */
uint16_t pad;
uint64_t totalhigh; /* Total high memory size */
uint64_t freehigh; /* Available high memory size */
uint32_t mem_unit; /* Memory unit size in bytes */
} tgt_sysinfo;
/// 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 "
};
/// 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
};
static void archClone(uint64_t flags,
Process *pp, Process *cp,
ThreadContext *ptc, ThreadContext *ctc,
uint64_t stack, uint64_t tls)
{
ArmLinux::archClone(flags, pp, cp, ptc, ctc, stack, tls);
if (stack)
ctc->setIntReg(ArmISA::INTREG_SP0, stack);
}
};
#endif