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7186fc4c2d4cfa83d77a97f3765e8dde70b17551
gem5/src/arch/power/linux/linux.hh
Gabe Black 7186fc4c2d arch,kern,sim: Use a map to map syscall flags. 
Use a std::map to map target syscall flag bits to host flag bits. This
avoids having to track the number of elements in the map separately.

Change-Id: I43bd54f5286f11b9635d46240a55742ddfdb0901
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/45899
Reviewed-by: Gabe Black <gabe.black@gmail.com>
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
Maintainer: Gabe Black <gabe.black@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2021-05-28 00:46:56 +00:00

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/*
* Copyright (c) 2003-2005 The Regents of The University of Michigan
* Copyright (c) 2009 The University of Edinburgh
* 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_POWER_LINUX_LINUX_HH__
#define __ARCH_POWER_LINUX_LINUX_HH__
#include <map>
#include "kern/linux/linux.hh"
/*
* This works for a 2.6.15 kernel.
*/
class PowerLinux : public Linux
{
public:
static const ByteOrder byteOrder = ByteOrder::big;
typedef int32_t time_t;
typedef struct
{
uint64_t st_dev;
uint32_t __pad1;
uint32_t st_ino;
uint32_t st_mode;
uint32_t st_nlink;
uint32_t st_uid;
uint32_t st_gid;
uint64_t st_rdev;
uint32_t __pad2;
uint32_t st_size;
uint32_t st_blksize;
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;
uint32_t __unused4;
uint32_t __unused5;
} 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;
uint64_t st_rdev;
uint64_t __pad2;
uint64_t st_size;
uint32_t st_blksize;
uint32_t __blksize_pad;
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;
uint32_t __unused4;
uint32_t __unused5;
} tgt_stat64;
/// 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 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 const std::map<int, int> openFlagTable;
//@{
/// 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 = 000400000; //!< O_DIRECT
static const int TGT_O_LARGEFILE = 000200000; //!< 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_CLOEXEC
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 = 0x00080;
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;
//@{
/// ioctl() command codes.
static const unsigned TGT_TIOCGETP = 0x40067408;
static const unsigned TGT_TIOCSETP = 0x80067409;
static const unsigned TGT_TIOCSETN = 0x8006740a;
static const unsigned TGT_TIOCSETC = 0x80067411;
static const unsigned TGT_TIOCGETC = 0x40067412;
static const unsigned TGT_FIONREAD = 0x4004667f;
static const unsigned TGT_TCGETS = 0x402c7413;
static const unsigned TGT_TCGETA = 0x40127417;
static const unsigned TGT_TCSETAW = 0x80147419; // 2.6.15 kernel
//@}
static bool
isTtyReq(unsigned req)
{
switch (req) {
case TGT_TIOCGETP:
case TGT_TIOCSETP:
case TGT_TIOCSETN:
case TGT_TIOCSETC:
case TGT_TIOCGETC:
case TGT_TCGETS:
case TGT_TCGETA:
case TGT_TCSETAW:
return true;
default:
return false;
}
}
};
#endif // __ARCH_POWER_LINUX_LINUX_HH__
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