Linux System Calls
by Lazeez SMS CollectionBelow is a list of available GNULinux system calls for kernel 2.4.18-14 opcodes & their function. To know more about any specific function call try out your man pages with number 2 say e.x.
man 2 _exit for the first system call.
| System Call number | Function | |
| 001 | exit | |
| 002 | fork | |
| 003 | read | |
| 004 | write | |
| 005 | open | |
| 006 | close | |
| 007 | waitpid | |
| 008 | create | |
| 009 | link | |
| 010 | unlink | |
| 011 | execve | |
| 012 | chdir | |
| 013 | time | |
| 014 | mknod | |
| 015 | chmod | |
| 016 | lchown | |
| 017 | break | |
| 018 | oldstat | |
| 019 | lseek | |
| 020 | getpid | |
| 021 | mount | |
| 022 | oldmount | |
| 023 | setuid | |
| 024 | getuid | |
| 025 | stime | |
| 026 | ptrace | |
| 027 | alarm | |
| 028 | fstat | |
| 029 | pause | |
| 030 | utime | |
| 031 | stty | |
| 032 | gtty | |
| 033 | access | |
| 034 | nice | |
| 035 | ftime | |
| 036 | sync | |
| 037 | kill | |
| 038 | rename | |
| 039 | mkdir | |
| 040 | rmdir | |
| 041 | dup | |
| 042 | pipe | |
| 043 | times | |
| 044 | prof | |
| 045 | brk | |
| 046 | setgid | |
| 047 | getgid | |
| 048 | signal | |
| 049 | geteuid | |
| 050 | getegid | |
| 051 | acct | |
| 052 | umount | |
| 053 | lock | |
| 054 | ioctl | |
| 055 | fcntl | |
| 056 | mpx | |
| 057 | setpgid | |
| 058 | ulimit | |
| 059 | oldolduname | |
| 060 | umask | |
| 061 | chroot | |
| 062 | ustat | |
| 063 | dup2 | |
| 064 | getppid | |
| 065 | getpgrp | |
| 066 | setsid | |
| 067 | sigaction | |
| 068 | sgetmask | |
| 069 | ssetmask | |
| 070 | setreuid | |
| 071 | setrepid | |
| 072 | sigsuspend | |
| 073 | sigpending | |
| 074 | sethostname | |
| 075 | setrlimit | |
| 076 | getrlimit | /* Back compatible 2Gig limited rlimit */ |
| 077 | getrusage | |
| 078 | gettimeofday | |
| 079 | settimeofday | |
| 080 | getgroups | |
| 081 | setgroups | |
| 082 | old_select | |
| 083 | symlink | |
| 084 | lstat | |
| 085 | readlink | |
| 086 | uselib | |
| 087 | swapon | |
| 088 | reboot | |
| 089 | readdir | |
| 090 | mmap | |
| 091 | munmap | |
| 092 | truncate | |
| 093 | ftruncate | |
| 094 | fchmod | |
| 095 | fchown | |
| 096 | getpriority | |
| 097 | setpriority | |
| 098 | profil | |
| 099 | statfs | |
| 100 | fstatfs | |
| 101 | ioperm | |
| 102 | socketcall | |
| 103 | syslog | |
| 104 | setitimer | |
| 105 | getitimer | |
| 106 | stat | |
| 107 | lstat | |
| 108 | fstat | |
| 109 | uname | |
| 110 | iopl | |
| 111 | vhangup | |
| 112 | idle | |
| 113 | vm86old | |
| 114 | wait4 | |
| 115 | swapoff | |
| 116 | sysinfo | |
| 117 | ipc | |
| 118 | fsync | |
| 119 | sigreturn | |
| 120 | clone | |
| 121 | setdomainname | |
| 122 | uname | |
| 123 | modify_ldt | |
| 124 | adjtimex | |
| 125 | mprotect | |
| 126 | sigprocmask | |
| 127 | create_module | |
| 128 | init_module | |
| 129 | delete_module | |
| 130 | get_kernel_syms | |
| 131 | quotactl | |
| 132 | getpgid | |
| 133 | fchdir | |
| 134 | bdflush | |
| 135 | sysfs | |
| 136 | personality | |
| 137 | afs_syscall | /* Syscall for Andrew File System */ |
| 138 | setfsuid | |
| 139 | setfsgid | |
| 140 | llseek | |
| 141 | getdents | |
| 142 | select | |
| 143 | flock | |
| 144 | msync | |
| 145 | readv | |
| 146 | writev | |
| 147 | getsid | |
| 148 | fdatasync | |
| 149 | sysctl | |
| 150 | mlock | |
| 151 | munlock | |
| 152 | mlockall | |
| 153 | munlockall | |
| 154 | sched_setparam | |
| 155 | sched_getparam | |
| 156 | sched_setscheduler | |
| 157 | sched_getscheduler | |
| 158 | sched_yield | |
| 159 | sched_get_priority_max | |
| 160 | sched_get_priority_min | |
| 161 | sched_rr_get_interval | |
| 162 | nanosleep | |
| 163 | mremap | |
| 164 | setresuid | |
| 165 | getresuid | |
| 166 | vm86 | |
| 167 | query_module | |
| 168 | poll | |
| 169 | nfsservctl | |
| 170 | setresgid | |
| 171 | getresgid | |
| 172 | prctl | |
| 173 | rt_sigreturn | |
| 174 | rt_sigaction | |
| 175 | rt_sigprocmask | |
| 176 | rt_sigpending | |
| 177 | rt_sigtimedwait | |
| 178 | rt_sigqueueinfo | |
| 179 | rt_sigsuspend | |
| 180 | pread | |
| 181 | pwrite | |
| 182 | chown | |
| 183 | getcwd | |
| 184 | capget | |
| 185 | capset | |
| 186 | sigaltstack | |
| 187 | sendfile | |
| 188 | getpmsg | /* some people actually want streams */ |
| 189 | putpmsg | /* some people actually want streams */ |
| 190 | vfork | |
| 191 | ugetrlimit | /* SuS compliant getrlimit */ |
| 192 | mmap2 | |
| 193 | truncate64 | |
| 194 | ftruncate64 | |
| 195 | stat64 | |
| 196 | lstat64 | |
| 197 | fstat64 | |
| 198 | lchown32 | |
| 199 | getuid32 | |
| 200 | getgid32 | |
| 201 | geteuid32 | |
| 202 | getegid32 | |
| 203 | setreuid32 | |
| 204 | setregid32 | |
| 205 | getgroups32 | |
| 206 | setgroups32 | |
| 207 | fchown32 | |
| 208 | setresuid32 | |
| 209 | getresuid32 | |
| 210 | setresgid32 | |
| 211 | getresgid32 | |
| 212 | chown32 | |
| 213 | setuid32 | |
| 214 | setgid32 | |
| 215 | setfsui32 | |
| 216 | setfsgi32 | |
| 217 | pivot_root | |
| 218 | mincore | |
| 219 | madvise | |
| 219 | madvise1 | /* delete when C lib stub is removed */ |
| 220 | getdents64 | |
| 221 | fcntl64 | |
| 223 | security | /* syscall for security modules */ |
| 224 | gettid | |
| 225 | readahead | |
| 226 | setxattr | |
| 227 | lsetxattr | |
| 228 | fsetxattr | |
| 229 | getxattr | |
| 230 | lgetxattr | |
| 231 | fgetxattr | |
| 232 | listxattr | |
| 233 | llistxattr | |
| 234 | flistxattr | |
| 235 | removexattr | |
| 236 | lremovexattr | |
| 237 | fremovexattr | |
| 238 | tkill | |
| 239 | sendfile64 | |
| 240 | futex | |
| 241 | sched_setaffinity | |
| 242 | sched_getaffinity | |
| 243 | set_thread_area |
For your kernel some syscalls might vary, so see your "/usr/include/asm/unistd.h" file for exact numbers that are available to you.
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