golang處理系統呼叫的包為syscall,具體系統呼叫時透過彙編來實現

在類Unix系統中，使用以下4個方法進行系統呼叫(syscall_unix.go)。

(trapa1a2a3 ) (r1r2 err ) (trapa1a2a3a4a5a6 ) (r1r2 err ) (trapa1a2a3 ) (r1r2 err ) (trapa1a2a3a4a5a6 ) (r1r2 err )

trap 為系統呼叫號，a1~a6為暫存器引數，以X86為例，如下所示：

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Linux系統呼叫號有300多個:（zsysnum_linux_amd64.go）

package syscall

const (

SYS_READ = 0

SYS_WRITE = 1

SYS_OPEN = 2

SYS_CLOSE = 3

SYS_STAT = 4

SYS_FSTAT = 5

SYS_LSTAT = 6

SYS_POLL = 7

SYS_LSEEK = 8

SYS_MMAP = 9

SYS_MPROTECT = 10

SYS_MUNMAP = 11

SYS_BRK = 12

SYS_RT_SIGACTION = 13

SYS_RT_SIGPROCMASK = 14

SYS_RT_SIGRETURN = 15

SYS_IOCTL = 16

SYS_PREAD64 = 17

SYS_PWRITE64 = 18

SYS_READV = 19

SYS_WRITEV = 20

SYS_ACCESS = 21

SYS_PIPE = 22

SYS_SELECT = 23

SYS_SCHED_YIELD = 24

SYS_MREMAP = 25

SYS_MSYNC = 26

SYS_MINCORE = 27

SYS_MADVISE = 28

SYS_SHMGET = 29

SYS_SHMAT = 30

SYS_SHMCTL = 31

SYS_DUP = 32

SYS_DUP2 = 33

SYS_PAUSE = 34

SYS_NANOSLEEP = 35

SYS_GETITIMER = 36

SYS_ALARM = 37

SYS_SETITIMER = 38

SYS_GETPID = 39

SYS_SENDFILE = 40

SYS_SOCKET = 41

SYS_CONNECT = 42

SYS_ACCEPT = 43

SYS_SENDTO = 44

SYS_RECVFROM = 45

SYS_SENDMSG = 46

SYS_RECVMSG = 47

SYS_SHUTDOWN = 48

SYS_BIND = 49

SYS_LISTEN = 50

SYS_GETSOCKNAME = 51

SYS_GETPEERNAME = 52

SYS_SOCKETPAIR = 53

SYS_SETSOCKOPT = 54

SYS_GETSOCKOPT = 55

SYS_CLONE = 56

SYS_FORK = 57

SYS_VFORK = 58

SYS_EXECVE = 59

SYS_EXIT = 60

SYS_WAIT4 = 61

SYS_KILL = 62

SYS_UNAME = 63

SYS_SEMGET = 64

SYS_SEMOP = 65

SYS_SEMCTL = 66

SYS_SHMDT = 67

SYS_MSGGET = 68

SYS_MSGSND = 69

SYS_MSGRCV = 70

SYS_MSGCTL = 71

SYS_FCNTL = 72

SYS_FLOCK = 73

SYS_FSYNC = 74

SYS_FDATASYNC = 75

SYS_TRUNCATE = 76

SYS_FTRUNCATE = 77

SYS_GETDENTS = 78

SYS_GETCWD = 79

SYS_CHDIR = 80

SYS_FCHDIR = 81

SYS_RENAME = 82

SYS_MKDIR = 83

SYS_RMDIR = 84

SYS_CREAT = 85

SYS_LINK = 86

SYS_UNLINK = 87

SYS_SYMLINK = 88

SYS_READLINK = 89

SYS_CHMOD = 90

SYS_FCHMOD = 91

SYS_CHOWN = 92

SYS_FCHOWN = 93

SYS_LCHOWN = 94

SYS_UMASK = 95

SYS_GETTIMEOFDAY = 96

SYS_GETRLIMIT = 97

SYS_GETRUSAGE = 98

SYS_SYSINFO = 99

SYS_TIMES = 100

SYS_PTRACE = 101

SYS_GETUID = 102

SYS_SYSLOG = 103

SYS_GETGID = 104

SYS_SETUID = 105

SYS_SETGID = 106

SYS_GETEUID = 107

SYS_GETEGID = 108

SYS_SETPGID = 109

SYS_GETPPID = 110

SYS_GETPGRP = 111

SYS_SETSID = 112

SYS_SETREUID = 113

SYS_SETREGID = 114

SYS_GETGROUPS = 115

SYS_SETGROUPS = 116

SYS_SETRESUID = 117

SYS_GETRESUID = 118

SYS_SETRESGID = 119

SYS_GETRESGID = 120

SYS_GETPGID = 121

SYS_SETFSUID = 122

SYS_SETFSGID = 123

SYS_GETSID = 124

SYS_CAPGET = 125

SYS_CAPSET = 126

SYS_RT_SIGPENDING = 127

SYS_RT_SIGTIMEDWAIT = 128

SYS_RT_SIGQUEUEINFO = 129

SYS_RT_SIGSUSPEND = 130

SYS_SIGALTSTACK = 131

SYS_UTIME = 132

SYS_MKNOD = 133

SYS_USELIB = 134

SYS_PERSONALITY = 135

SYS_USTAT = 136

SYS_STATFS = 137

SYS_FSTATFS = 138

SYS_SYSFS = 139

SYS_GETPRIORITY = 140

SYS_SETPRIORITY = 141

SYS_SCHED_SETPARAM = 142

SYS_SCHED_GETPARAM = 143

SYS_SCHED_SETSCHEDULER = 144

SYS_SCHED_GETSCHEDULER = 145

SYS_SCHED_GET_PRIORITY_MAX = 146

SYS_SCHED_GET_PRIORITY_MIN = 147

SYS_SCHED_RR_GET_INTERVAL = 148

SYS_MLOCK = 149

SYS_MUNLOCK = 150

SYS_MLOCKALL = 151

SYS_MUNLOCKALL = 152

SYS_VHANGUP = 153

SYS_MODIFY_LDT = 154

SYS_PIVOT_ROOT = 155

SYS__SYSCTL = 156

SYS_PRCTL = 157

SYS_ARCH_PRCTL = 158

SYS_ADJTIMEX = 159

SYS_SETRLIMIT = 160

SYS_CHROOT = 161

SYS_SYNC = 162

SYS_ACCT = 163

SYS_SETTIMEOFDAY = 164

SYS_MOUNT = 165

SYS_UMOUNT2 = 166

SYS_SWAPON = 167

SYS_SWAPOFF = 168

SYS_REBOOT = 169

SYS_SETHOSTNAME = 170

SYS_SETDOMAINNAME = 171

SYS_IOPL = 172

SYS_IOPERM = 173

SYS_CREATE_MODULE = 174

SYS_INIT_MODULE = 175

SYS_DELETE_MODULE = 176

SYS_GET_KERNEL_SYMS = 177

SYS_QUERY_MODULE = 178

SYS_QUOTACTL = 179

SYS_NFSSERVCTL = 180

SYS_GETPMSG = 181

SYS_PUTPMSG = 182

SYS_AFS_SYSCALL = 183

SYS_TUXCALL = 184

SYS_SECURITY = 185

SYS_GETTID = 186

SYS_READAHEAD = 187

SYS_SETXATTR = 188

SYS_LSETXATTR = 189

SYS_FSETXATTR = 190

SYS_GETXATTR = 191

SYS_LGETXATTR = 192

SYS_FGETXATTR = 193

SYS_LISTXATTR = 194

SYS_LLISTXATTR = 195

SYS_FLISTXATTR = 196

SYS_REMOVEXATTR = 197

SYS_LREMOVEXATTR = 198

SYS_FREMOVEXATTR = 199

SYS_TKILL = 200

SYS_TIME = 201

SYS_FUTEX = 202

SYS_SCHED_SETAFFINITY = 203

SYS_SCHED_GETAFFINITY = 204

SYS_SET_THREAD_AREA = 205

SYS_IO_SETUP = 206

SYS_IO_DESTROY = 207

SYS_IO_GETEVENTS = 208

SYS_IO_SUBMIT = 209

SYS_IO_CANCEL = 210

SYS_GET_THREAD_AREA = 211

SYS_LOOKUP_DCOOKIE = 212

SYS_EPOLL_CREATE = 213

SYS_EPOLL_CTL_OLD = 214

SYS_EPOLL_WAIT_OLD = 215

SYS_REMAP_FILE_PAGES = 216

SYS_GETDENTS64 = 217

SYS_SET_TID_ADDRESS = 218

SYS_RESTART_SYSCALL = 219

SYS_SEMTIMEDOP = 220

SYS_FADVISE64 = 221

SYS_TIMER_CREATE = 222

SYS_TIMER_SETTIME = 223

SYS_TIMER_GETTIME = 224

SYS_TIMER_GETOVERRUN = 225

SYS_TIMER_DELETE = 226

SYS_CLOCK_SETTIME = 227

SYS_CLOCK_GETTIME = 228

SYS_CLOCK_GETRES = 229

SYS_CLOCK_NANOSLEEP = 230

SYS_EXIT_GROUP = 231

SYS_EPOLL_WAIT = 232

SYS_EPOLL_CTL = 233

SYS_TGKILL = 234

SYS_UTIMES = 235

SYS_VSERVER = 236

SYS_MBIND = 237

SYS_SET_MEMPOLICY = 238

SYS_GET_MEMPOLICY = 239

SYS_MQ_OPEN = 240

SYS_MQ_UNLINK = 241

SYS_MQ_TIMEDSEND = 242

SYS_MQ_TIMEDRECEIVE = 243

SYS_MQ_NOTIFY = 244

SYS_MQ_GETSETATTR = 245

SYS_KEXEC_LOAD = 246

SYS_WAITID = 247

SYS_ADD_KEY = 248

SYS_REQUEST_KEY = 249

SYS_KEYCTL = 250

SYS_IOPRIO_SET = 251

SYS_IOPRIO_GET = 252

SYS_INOTIFY_INIT = 253

SYS_INOTIFY_ADD_WATCH = 254

SYS_INOTIFY_RM_WATCH = 255

SYS_MIGRATE_PAGES = 256

SYS_OPENAT = 257

SYS_MKDIRAT = 258

SYS_MKNODAT = 259

SYS_FCHOWNAT = 260

SYS_FUTIMESAT = 261

SYS_NEWFSTATAT = 262

SYS_UNLINKAT = 263

SYS_RENAMEAT = 264

SYS_LINKAT = 265

SYS_SYMLINKAT = 266

SYS_READLINKAT = 267

SYS_FCHMODAT = 268

SYS_FACCESSAT = 269

SYS_PSELECT6 = 270

SYS_PPOLL = 271

SYS_UNSHARE = 272

SYS_SET_ROBUST_LIST = 273

SYS_GET_ROBUST_LIST = 274

SYS_SPLICE = 275

SYS_TEE = 276

SYS_SYNC_FILE_RANGE = 277

SYS_VMSPLICE = 278

SYS_MOVE_PAGES = 279

SYS_UTIMENSAT = 280

SYS_EPOLL_PWAIT = 281

SYS_SIGNALFD = 282

SYS_TIMERFD_CREATE = 283

SYS_EVENTFD = 284

SYS_FALLOCATE = 285

SYS_TIMERFD_SETTIME = 286

SYS_TIMERFD_GETTIME = 287

SYS_ACCEPT4 = 288

SYS_SIGNALFD4 = 289

SYS_EVENTFD2 = 290

SYS_EPOLL_CREATE1 = 291

SYS_DUP3 = 292

SYS_PIPE2 = 293

SYS_INOTIFY_INIT1 = 294

SYS_PREADV = 295

SYS_PWRITEV = 296

SYS_RT_TGSIGQUEUEINFO = 297

SYS_PERF_EVENT_OPEN = 298

SYS_RECVMMSG = 299

SYS_FANOTIFY_INIT = 300

SYS_FANOTIFY_MARK = 301

SYS_PRLIMIT64 = 302

)

golang system call

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