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RISC-V Linux User Emulation

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Implementation of linux user emulation for RISC-V.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu>
Signed-off-by: Michael Clark <mjc@sifive.com>
This commit is contained in:
Michael Clark 2018-03-03 01:31:11 +13:00
parent 65c5b75c38
commit 47ae93cdfe
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13 changed files with 1012 additions and 6 deletions
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287
linux-user/riscv/syscall_nr.h Normal file
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/*
* Syscall numbers from asm-generic, common for most
* of recently-added arches including RISC-V.
*/
#define TARGET_NR_io_setup 0
#define TARGET_NR_io_destroy 1
#define TARGET_NR_io_submit 2
#define TARGET_NR_io_cancel 3
#define TARGET_NR_io_getevents 4
#define TARGET_NR_setxattr 5
#define TARGET_NR_lsetxattr 6
#define TARGET_NR_fsetxattr 7
#define TARGET_NR_getxattr 8
#define TARGET_NR_lgetxattr 9
#define TARGET_NR_fgetxattr 10
#define TARGET_NR_listxattr 11
#define TARGET_NR_llistxattr 12
#define TARGET_NR_flistxattr 13
#define TARGET_NR_removexattr 14
#define TARGET_NR_lremovexattr 15
#define TARGET_NR_fremovexattr 16
#define TARGET_NR_getcwd 17
#define TARGET_NR_lookup_dcookie 18
#define TARGET_NR_eventfd2 19
#define TARGET_NR_epoll_create1 20
#define TARGET_NR_epoll_ctl 21
#define TARGET_NR_epoll_pwait 22
#define TARGET_NR_dup 23
#define TARGET_NR_dup3 24
#ifdef TARGET_RISCV32
#define TARGET_NR_fcntl64 25
#else
#define TARGET_NR_fcntl 25
#endif
#define TARGET_NR_inotify_init1 26
#define TARGET_NR_inotify_add_watch 27
#define TARGET_NR_inotify_rm_watch 28
#define TARGET_NR_ioctl 29
#define TARGET_NR_ioprio_set 30
#define TARGET_NR_ioprio_get 31
#define TARGET_NR_flock 32
#define TARGET_NR_mknodat 33
#define TARGET_NR_mkdirat 34
#define TARGET_NR_unlinkat 35
#define TARGET_NR_symlinkat 36
#define TARGET_NR_linkat 37
#define TARGET_NR_renameat 38
#define TARGET_NR_umount2 39
#define TARGET_NR_mount 40
#define TARGET_NR_pivot_root 41
#define TARGET_NR_nfsservctl 42
#define TARGET_NR_statfs 43
#define TARGET_NR_fstatfs 44
#define TARGET_NR_truncate 45
#define TARGET_NR_ftruncate 46
#define TARGET_NR_fallocate 47
#define TARGET_NR_faccessat 48
#define TARGET_NR_chdir 49
#define TARGET_NR_fchdir 50
#define TARGET_NR_chroot 51
#define TARGET_NR_fchmod 52
#define TARGET_NR_fchmodat 53
#define TARGET_NR_fchownat 54
#define TARGET_NR_fchown 55
#define TARGET_NR_openat 56
#define TARGET_NR_close 57
#define TARGET_NR_vhangup 58
#define TARGET_NR_pipe2 59
#define TARGET_NR_quotactl 60
#define TARGET_NR_getdents64 61
#define TARGET_NR_lseek 62
#define TARGET_NR_read 63
#define TARGET_NR_write 64
#define TARGET_NR_readv 65
#define TARGET_NR_writev 66
#define TARGET_NR_pread64 67
#define TARGET_NR_pwrite64 68
#define TARGET_NR_preadv 69
#define TARGET_NR_pwritev 70
#define TARGET_NR_sendfile 71
#define TARGET_NR_pselect6 72
#define TARGET_NR_ppoll 73
#define TARGET_NR_signalfd4 74
#define TARGET_NR_vmsplice 75
#define TARGET_NR_splice 76
#define TARGET_NR_tee 77
#define TARGET_NR_readlinkat 78
#define TARGET_NR_newfstatat 79
#define TARGET_NR_fstat 80
#define TARGET_NR_sync 81
#define TARGET_NR_fsync 82
#define TARGET_NR_fdatasync 83
#define TARGET_NR_sync_file_range 84
#define TARGET_NR_timerfd_create 85
#define TARGET_NR_timerfd_settime 86
#define TARGET_NR_timerfd_gettime 87
#define TARGET_NR_utimensat 88
#define TARGET_NR_acct 89
#define TARGET_NR_capget 90
#define TARGET_NR_capset 91
#define TARGET_NR_personality 92
#define TARGET_NR_exit 93
#define TARGET_NR_exit_group 94
#define TARGET_NR_waitid 95
#define TARGET_NR_set_tid_address 96
#define TARGET_NR_unshare 97
#define TARGET_NR_futex 98
#define TARGET_NR_set_robust_list 99
#define TARGET_NR_get_robust_list 100
#define TARGET_NR_nanosleep 101
#define TARGET_NR_getitimer 102
#define TARGET_NR_setitimer 103
#define TARGET_NR_kexec_load 104
#define TARGET_NR_init_module 105
#define TARGET_NR_delete_module 106
#define TARGET_NR_timer_create 107
#define TARGET_NR_timer_gettime 108
#define TARGET_NR_timer_getoverrun 109
#define TARGET_NR_timer_settime 110
#define TARGET_NR_timer_delete 111
#define TARGET_NR_clock_settime 112
#define TARGET_NR_clock_gettime 113
#define TARGET_NR_clock_getres 114
#define TARGET_NR_clock_nanosleep 115
#define TARGET_NR_syslog 116
#define TARGET_NR_ptrace 117
#define TARGET_NR_sched_setparam 118
#define TARGET_NR_sched_setscheduler 119
#define TARGET_NR_sched_getscheduler 120
#define TARGET_NR_sched_getparam 121
#define TARGET_NR_sched_setaffinity 122
#define TARGET_NR_sched_getaffinity 123
#define TARGET_NR_sched_yield 124
#define TARGET_NR_sched_get_priority_max 125
#define TARGET_NR_sched_get_priority_min 126
#define TARGET_NR_sched_rr_get_interval 127
#define TARGET_NR_restart_syscall 128
#define TARGET_NR_kill 129
#define TARGET_NR_tkill 130
#define TARGET_NR_tgkill 131
#define TARGET_NR_sigaltstack 132
#define TARGET_NR_rt_sigsuspend 133
#define TARGET_NR_rt_sigaction 134
#define TARGET_NR_rt_sigprocmask 135
#define TARGET_NR_rt_sigpending 136
#define TARGET_NR_rt_sigtimedwait 137
#define TARGET_NR_rt_sigqueueinfo 138
#define TARGET_NR_rt_sigreturn 139
#define TARGET_NR_setpriority 140
#define TARGET_NR_getpriority 141
#define TARGET_NR_reboot 142
#define TARGET_NR_setregid 143
#define TARGET_NR_setgid 144
#define TARGET_NR_setreuid 145
#define TARGET_NR_setuid 146
#define TARGET_NR_setresuid 147
#define TARGET_NR_getresuid 148
#define TARGET_NR_setresgid 149
#define TARGET_NR_getresgid 150
#define TARGET_NR_setfsuid 151
#define TARGET_NR_setfsgid 152
#define TARGET_NR_times 153
#define TARGET_NR_setpgid 154
#define TARGET_NR_getpgid 155
#define TARGET_NR_getsid 156
#define TARGET_NR_setsid 157
#define TARGET_NR_getgroups 158
#define TARGET_NR_setgroups 159
#define TARGET_NR_uname 160
#define TARGET_NR_sethostname 161
#define TARGET_NR_setdomainname 162
#define TARGET_NR_getrlimit 163
#define TARGET_NR_setrlimit 164
#define TARGET_NR_getrusage 165
#define TARGET_NR_umask 166
#define TARGET_NR_prctl 167
#define TARGET_NR_getcpu 168
#define TARGET_NR_gettimeofday 169
#define TARGET_NR_settimeofday 170
#define TARGET_NR_adjtimex 171
#define TARGET_NR_getpid 172
#define TARGET_NR_getppid 173
#define TARGET_NR_getuid 174
#define TARGET_NR_geteuid 175
#define TARGET_NR_getgid 176
#define TARGET_NR_getegid 177
#define TARGET_NR_gettid 178
#define TARGET_NR_sysinfo 179
#define TARGET_NR_mq_open 180
#define TARGET_NR_mq_unlink 181
#define TARGET_NR_mq_timedsend 182
#define TARGET_NR_mq_timedreceive 183
#define TARGET_NR_mq_notify 184
#define TARGET_NR_mq_getsetattr 185
#define TARGET_NR_msgget 186
#define TARGET_NR_msgctl 187
#define TARGET_NR_msgrcv 188
#define TARGET_NR_msgsnd 189
#define TARGET_NR_semget 190
#define TARGET_NR_semctl 191
#define TARGET_NR_semtimedop 192
#define TARGET_NR_semop 193
#define TARGET_NR_shmget 194
#define TARGET_NR_shmctl 195
#define TARGET_NR_shmat 196
#define TARGET_NR_shmdt 197
#define TARGET_NR_socket 198
#define TARGET_NR_socketpair 199
#define TARGET_NR_bind 200
#define TARGET_NR_listen 201
#define TARGET_NR_accept 202
#define TARGET_NR_connect 203
#define TARGET_NR_getsockname 204
#define TARGET_NR_getpeername 205
#define TARGET_NR_sendto 206
#define TARGET_NR_recvfrom 207
#define TARGET_NR_setsockopt 208
#define TARGET_NR_getsockopt 209
#define TARGET_NR_shutdown 210
#define TARGET_NR_sendmsg 211
#define TARGET_NR_recvmsg 212
#define TARGET_NR_readahead 213
#define TARGET_NR_brk 214
#define TARGET_NR_munmap 215
#define TARGET_NR_mremap 216
#define TARGET_NR_add_key 217
#define TARGET_NR_request_key 218
#define TARGET_NR_keyctl 219
#define TARGET_NR_clone 220
#define TARGET_NR_execve 221
#ifdef TARGET_RISCV32
#define TARGET_NR_mmap2 222
#define TARGET_NR_fadvise64_64 223
#else
#define TARGET_NR_mmap 222
#define TARGET_NR_fadvise64 223
#endif
#define TARGET_NR_swapon 224
#define TARGET_NR_swapoff 225
#define TARGET_NR_mprotect 226
#define TARGET_NR_msync 227
#define TARGET_NR_mlock 228
#define TARGET_NR_munlock 229
#define TARGET_NR_mlockall 230
#define TARGET_NR_munlockall 231
#define TARGET_NR_mincore 232
#define TARGET_NR_madvise 233
#define TARGET_NR_remap_file_pages 234
#define TARGET_NR_mbind 235
#define TARGET_NR_get_mempolicy 236
#define TARGET_NR_set_mempolicy 237
#define TARGET_NR_migrate_pages 238
#define TARGET_NR_move_pages 239
#define TARGET_NR_rt_tgsigqueueinfo 240
#define TARGET_NR_perf_event_open 241
#define TARGET_NR_accept4 242
#define TARGET_NR_recvmmsg 243
#define TARGET_NR_arch_specific_syscall 244
#define TARGET_NR_wait4 260
#define TARGET_NR_prlimit64 261
#define TARGET_NR_fanotify_init 262
#define TARGET_NR_fanotify_mark 263
#define TARGET_NR_name_to_handle_at 264
#define TARGET_NR_open_by_handle_at 265
#define TARGET_NR_clock_adjtime 266
#define TARGET_NR_syncfs 267
#define TARGET_NR_setns 268
#define TARGET_NR_sendmmsg 269
#define TARGET_NR_process_vm_readv 270
#define TARGET_NR_process_vm_writev 271
#define TARGET_NR_kcmp 272
#define TARGET_NR_finit_module 273
#define TARGET_NR_sched_setattr 274
#define TARGET_NR_sched_getattr 275
#define TARGET_NR_renameat2 276
#define TARGET_NR_seccomp 277
#define TARGET_NR_getrandom 278
#define TARGET_NR_memfd_create 279
#define TARGET_NR_bpf 280
#define TARGET_NR_execveat 281
#define TARGET_NR_userfaultfd 282
#define TARGET_NR_membarrier 283
#define TARGET_NR_mlock2 284
#define TARGET_NR_copy_file_range 285
#define TARGET_NR_syscalls (TARGET_NR_copy_file_range + 1)

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linux-user/riscv/target_cpu.h Normal file
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#ifndef TARGET_CPU_H
#define TARGET_CPU_H
static inline void cpu_clone_regs(CPURISCVState *env, target_ulong newsp)
{
if (newsp) {
env->gpr[xSP] = newsp;
}
env->gpr[xA0] = 0;
}
static inline void cpu_set_tls(CPURISCVState *env, target_ulong newtls)
{
env->gpr[xTP] = newtls;
}
#endif

14
linux-user/riscv/target_elf.h Normal file
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/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation, or (at your option) any
* later version. See the COPYING file in the top-level directory.
*/
#ifndef RISCV_TARGET_ELF_H
#define RISCV_TARGET_ELF_H
static inline const char *cpu_get_model(uint32_t eflags)
{
return "any";
}
#endif

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linux-user/riscv/target_signal.h Normal file
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#ifndef TARGET_SIGNAL_H
#define TARGET_SIGNAL_H
#include "cpu.h"
typedef struct target_sigaltstack {
abi_ulong ss_sp;
abi_int ss_flags;
abi_ulong ss_size;
} target_stack_t;
#define TARGET_SS_ONSTACK 1
#define TARGET_SS_DISABLE 2
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_SIGSTKSZ 8192
static inline abi_ulong get_sp_from_cpustate(CPURISCVState *state)
{
return state->gpr[xSP];
}
#endif /* TARGET_SIGNAL_H */

46
linux-user/riscv/target_structs.h Normal file
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/*
* RISC-V specific structures for linux-user
*
* This is a copy of ../aarch64/target_structs.h atm.
*
*/
#ifndef TARGET_STRUCTS_H
#define TARGET_STRUCTS_H
struct target_ipc_perm {
abi_int __key; /* Key. */
abi_uint uid; /* Owner's user ID. */
abi_uint gid; /* Owner's group ID. */
abi_uint cuid; /* Creator's user ID. */
abi_uint cgid; /* Creator's group ID. */
abi_ushort mode; /* Read/write permission. */
abi_ushort __pad1;
abi_ushort __seq; /* Sequence number. */
abi_ushort __pad2;
abi_ulong __unused1;
abi_ulong __unused2;
};
struct target_shmid_ds {
struct target_ipc_perm shm_perm; /* operation permission struct */
abi_long shm_segsz; /* size of segment in bytes */
abi_ulong shm_atime; /* time of last shmat() */
#if TARGET_ABI_BITS == 32
abi_ulong __unused1;
#endif
abi_ulong shm_dtime; /* time of last shmdt() */
#if TARGET_ABI_BITS == 32
abi_ulong __unused2;
#endif
abi_ulong shm_ctime; /* time of last change by shmctl() */
#if TARGET_ABI_BITS == 32
abi_ulong __unused3;
#endif
abi_int shm_cpid; /* pid of creator */
abi_int shm_lpid; /* pid of last shmop */
abi_ulong shm_nattch; /* number of current attaches */
abi_ulong __unused4;
abi_ulong __unused5;
};
#endif

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linux-user/riscv/target_syscall.h Normal file
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/*
* This struct defines the way the registers are stored on the
* stack during a system call.
*
* Reference: linux/arch/riscv/include/uapi/asm/ptrace.h
*/
struct target_pt_regs {
abi_long sepc;
abi_long ra;
abi_long sp;
abi_long gp;
abi_long tp;
abi_long t0;
abi_long t1;
abi_long t2;
abi_long s0;
abi_long s1;
abi_long a0;
abi_long a1;
abi_long a2;
abi_long a3;
abi_long a4;
abi_long a5;
abi_long a6;
abi_long a7;
abi_long s2;
abi_long s3;
abi_long s4;
abi_long s5;
abi_long s6;
abi_long s7;
abi_long s8;
abi_long s9;
abi_long s10;
abi_long s11;
abi_long t3;
abi_long t4;
abi_long t5;
abi_long t6;
};
#ifdef TARGET_RISCV32
#define UNAME_MACHINE "riscv32"
#else
#define UNAME_MACHINE "riscv64"
#endif
#define UNAME_MINIMUM_RELEASE "3.8.0"
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_MLOCKALL_MCL_CURRENT 1
#define TARGET_MLOCKALL_MCL_FUTURE 2
/* clone(flags, newsp, ptidptr, tls, ctidptr) for RISC-V */
/* This comes from linux/kernel/fork.c, CONFIG_CLONE_BACKWARDS */
#define TARGET_CLONE_BACKWARDS

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linux-user/riscv/termbits.h Normal file
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/* from asm/termbits.h */
/* NOTE: exactly the same as i386 */
#define TARGET_NCCS 19
struct target_termios {
unsigned int c_iflag; /* input mode flags */
unsigned int c_oflag; /* output mode flags */
unsigned int c_cflag; /* control mode flags */
unsigned int c_lflag; /* local mode flags */
unsigned char c_line; /* line discipline */
unsigned char c_cc[TARGET_NCCS]; /* control characters */
};
/* c_iflag bits */
#define TARGET_IGNBRK 0000001
#define TARGET_BRKINT 0000002
#define TARGET_IGNPAR 0000004
#define TARGET_PARMRK 0000010
#define TARGET_INPCK 0000020
#define TARGET_ISTRIP 0000040
#define TARGET_INLCR 0000100
#define TARGET_IGNCR 0000200
#define TARGET_ICRNL 0000400
#define TARGET_IUCLC 0001000
#define TARGET_IXON 0002000
#define TARGET_IXANY 0004000
#define TARGET_IXOFF 0010000
#define TARGET_IMAXBEL 0020000
#define TARGET_IUTF8 0040000
/* c_oflag bits */
#define TARGET_OPOST 0000001
#define TARGET_OLCUC 0000002
#define TARGET_ONLCR 0000004
#define TARGET_OCRNL 0000010
#define TARGET_ONOCR 0000020
#define TARGET_ONLRET 0000040
#define TARGET_OFILL 0000100
#define TARGET_OFDEL 0000200
#define TARGET_NLDLY 0000400
#define TARGET_NL0 0000000
#define TARGET_NL1 0000400
#define TARGET_CRDLY 0003000
#define TARGET_CR0 0000000
#define TARGET_CR1 0001000
#define TARGET_CR2 0002000
#define TARGET_CR3 0003000
#define TARGET_TABDLY 0014000
#define TARGET_TAB0 0000000
#define TARGET_TAB1 0004000
#define TARGET_TAB2 0010000
#define TARGET_TAB3 0014000
#define TARGET_XTABS 0014000
#define TARGET_BSDLY 0020000
#define TARGET_BS0 0000000
#define TARGET_BS1 0020000
#define TARGET_VTDLY 0040000
#define TARGET_VT0 0000000
#define TARGET_VT1 0040000
#define TARGET_FFDLY 0100000
#define TARGET_FF0 0000000
#define TARGET_FF1 0100000
/* c_cflag bit meaning */
#define TARGET_CBAUD 0010017
#define TARGET_B0 0000000 /* hang up */
#define TARGET_B50 0000001
#define TARGET_B75 0000002
#define TARGET_B110 0000003
#define TARGET_B134 0000004
#define TARGET_B150 0000005
#define TARGET_B200 0000006
#define TARGET_B300 0000007
#define TARGET_B600 0000010
#define TARGET_B1200 0000011
#define TARGET_B1800 0000012
#define TARGET_B2400 0000013
#define TARGET_B4800 0000014
#define TARGET_B9600 0000015
#define TARGET_B19200 0000016
#define TARGET_B38400 0000017
#define TARGET_EXTA B19200
#define TARGET_EXTB B38400
#define TARGET_CSIZE 0000060
#define TARGET_CS5 0000000
#define TARGET_CS6 0000020
#define TARGET_CS7 0000040
#define TARGET_CS8 0000060
#define TARGET_CSTOPB 0000100
#define TARGET_CREAD 0000200
#define TARGET_PARENB 0000400
#define TARGET_PARODD 0001000
#define TARGET_HUPCL 0002000
#define TARGET_CLOCAL 0004000
#define TARGET_CBAUDEX 0010000
#define TARGET_B57600 0010001
#define TARGET_B115200 0010002
#define TARGET_B230400 0010003
#define TARGET_B460800 0010004
#define TARGET_CIBAUD 002003600000 /* input baud rate (not used) */
#define TARGET_CMSPAR 010000000000 /* mark or space (stick) parity */
#define TARGET_CRTSCTS 020000000000 /* flow control */
/* c_lflag bits */
#define TARGET_ISIG 0000001
#define TARGET_ICANON 0000002
#define TARGET_XCASE 0000004
#define TARGET_ECHO 0000010
#define TARGET_ECHOE 0000020
#define TARGET_ECHOK 0000040
#define TARGET_ECHONL 0000100
#define TARGET_NOFLSH 0000200
#define TARGET_TOSTOP 0000400
#define TARGET_ECHOCTL 0001000
#define TARGET_ECHOPRT 0002000
#define TARGET_ECHOKE 0004000
#define TARGET_FLUSHO 0010000
#define TARGET_PENDIN 0040000
#define TARGET_IEXTEN 0100000
/* c_cc character offsets */
#define TARGET_VINTR 0
#define TARGET_VQUIT 1
#define TARGET_VERASE 2
#define TARGET_VKILL 3
#define TARGET_VEOF 4
#define TARGET_VTIME 5
#define TARGET_VMIN 6
#define TARGET_VSWTC 7
#define TARGET_VSTART 8
#define TARGET_VSTOP 9
#define TARGET_VSUSP 10
#define TARGET_VEOL 11
#define TARGET_VREPRINT 12
#define TARGET_VDISCARD 13
#define TARGET_VWERASE 14
#define TARGET_VLNEXT 15
#define TARGET_VEOL2 16
/* ioctls */
#define TARGET_TCGETS 0x5401
#define TARGET_TCSETS 0x5402
#define TARGET_TCSETSW 0x5403
#define TARGET_TCSETSF 0x5404
#define TARGET_TCGETA 0x5405
#define TARGET_TCSETA 0x5406
#define TARGET_TCSETAW 0x5407
#define TARGET_TCSETAF 0x5408
#define TARGET_TCSBRK 0x5409
#define TARGET_TCXONC 0x540A
#define TARGET_TCFLSH 0x540B
#define TARGET_TIOCEXCL 0x540C
#define TARGET_TIOCNXCL 0x540D
#define TARGET_TIOCSCTTY 0x540E
#define TARGET_TIOCGPGRP 0x540F
#define TARGET_TIOCSPGRP 0x5410
#define TARGET_TIOCOUTQ 0x5411
#define TARGET_TIOCSTI 0x5412
#define TARGET_TIOCGWINSZ 0x5413
#define TARGET_TIOCSWINSZ 0x5414
#define TARGET_TIOCMGET 0x5415
#define TARGET_TIOCMBIS 0x5416
#define TARGET_TIOCMBIC 0x5417
#define TARGET_TIOCMSET 0x5418
#define TARGET_TIOCGSOFTCAR 0x5419
#define TARGET_TIOCSSOFTCAR 0x541A
#define TARGET_FIONREAD 0x541B
#define TARGET_TIOCINQ TARGET_FIONREAD
#define TARGET_TIOCLINUX 0x541C
#define TARGET_TIOCCONS 0x541D
#define TARGET_TIOCGSERIAL 0x541E
#define TARGET_TIOCSSERIAL 0x541F
#define TARGET_TIOCPKT 0x5420
#define TARGET_FIONBIO 0x5421
#define TARGET_TIOCNOTTY 0x5422
#define TARGET_TIOCSETD 0x5423
#define TARGET_TIOCGETD 0x5424
#define TARGET_TCSBRKP 0x5425 /* Needed for POSIX tcsendbreak() */
#define TARGET_TIOCTTYGSTRUCT 0x5426 /* For debugging only */
#define TARGET_TIOCSBRK 0x5427 /* BSD compatibility */
#define TARGET_TIOCCBRK 0x5428 /* BSD compatibility */
#define TARGET_TIOCGSID 0x5429 /* Return the session ID of FD */
#define TARGET_TIOCGPTN TARGET_IOR('T', 0x30, unsigned int)
/* Get Pty Number (of pty-mux device) */
#define TARGET_TIOCSPTLCK TARGET_IOW('T', 0x31, int)
/* Lock/unlock Pty */
#define TARGET_TIOCGPTPEER TARGET_IO('T', 0x41)
/* Safely open the slave */
#define TARGET_FIONCLEX 0x5450 /* these numbers need to be adjusted. */
#define TARGET_FIOCLEX 0x5451
#define TARGET_FIOASYNC 0x5452
#define TARGET_TIOCSERCONFIG 0x5453
#define TARGET_TIOCSERGWILD 0x5454
#define TARGET_TIOCSERSWILD 0x5455
#define TARGET_TIOCGLCKTRMIOS 0x5456
#define TARGET_TIOCSLCKTRMIOS 0x5457
#define TARGET_TIOCSERGSTRUCT 0x5458 /* For debugging only */
#define TARGET_TIOCSERGETLSR 0x5459 /* Get line status register */
#define TARGET_TIOCSERGETMULTI 0x545A /* Get multiport config */
#define TARGET_TIOCSERSETMULTI 0x545B /* Set multiport config */
#define TARGET_TIOCMIWAIT 0x545C
/* wait for a change on serial input line(s) */
#define TARGET_TIOCGICOUNT 0x545D
/* read serial port inline interrupt counts */
#define TARGET_TIOCGHAYESESP 0x545E /* Get Hayes ESP configuration */
#define TARGET_TIOCSHAYESESP 0x545F /* Set Hayes ESP configuration */
/* Used for packet mode */
#define TARGET_TIOCPKT_DATA 0
#define TARGET_TIOCPKT_FLUSHREAD 1
#define TARGET_TIOCPKT_FLUSHWRITE 2
#define TARGET_TIOCPKT_STOP 4
#define TARGET_TIOCPKT_START 8
#define TARGET_TIOCPKT_NOSTOP 16
#define TARGET_TIOCPKT_DOSTOP 32
#define TARGET_TIOCSER_TEMT 0x01 /* Transmitter physically empty */