Kernel calls grouped by topic.  see individual topic files for call details.

TOPIC   #  NAME                      DESCRIPTION
------ --- -----------------         ----------------------------------------------
access  50 getegid                 - get group identity
access  49 geteuid                 - get user identity
access  47 getgid                  - get group identity
access  80 getgroups               - get list of supplementary group IDs
access 132 getpgid                 - set/get process group
access  65 getpgrp                 - set/get process group
access  20 getpid                  - process identification
access  64 getppid                 - get process identification
access 171 getresgid               - get real/effective/saved group ID
access 165 getresuid               - get real, effective and saved user or group ID
access 147 getsid                  - get session ID
access  24 getuid                  - get user identity 
access 139 setfsgid                - set group identity used for file system checks
access 138 setfsuid                - set user identity used for file system checks
access  46 setgid                  - set group identity
access  81 setgroups               - set list of supplementary group IDs
access  57 setpgid                 - set process group 
access  71 setregid                - set real and / or effective group ID
access 170 setresgid               - set real,effective,saved group ID
access 164 setresuid               - set real user ID
access  70 setreuid                - set real and/or effective user ID
access  66 setsid                  - creates a session and sets the process group ID
access  23 setuid                  - set user identity

file    33 access                  - check user's permissions for a file
file    12 chdir                   - change working directory
file    15 chmod                   - change permissions of a file
file   182 chown                   - change ownership of a file
file    61 chroot                  - change root directory
file     6 close                   - close a file descriptor
file     8 creat                   - create a file
file    41 dup                     - duplicate a file descriptor
file    63 dup2                    - duplicate a file descriptor
file   133 fchdir                  - change working directory
file    94 fchmod                  - change permissions of a file
file    95 fchown                  - change ownership of a file
file    55 fcntl                   - manipulate file descriptor
file   148 fdatasync               - synchronize a file's in-core data with that on disk
file   143 flock                   - apply or remove an advisory lock on an open file
file   108 fstat                   - get file status
file   100 fstatfs                 - get file system statistics
file   118 fsync                   - synchronize  a file's complete in-core state with
file    93 ftruncate               - truncate file to specified length
file   183 getcwd                  - get current working directory
file   141 getdents                - get directory entries
file    16 lchown                  - change ownership of a file
file     9 link                    - make a new name for a file
file   140 llseek                  - reposition read/write file offset
file    19 lseek                   - reposition read/write file offset
file   107 lstat                   - get file status
file    39 mkdir                   - create a directory
file    14 mknod                   - create a special or ordinary file
file    21 mount                   - mount and unmount filesystems
file     5 open                    - open and possibly create a file or device
file    42 pipe                    - create pipe
file     3 read                    - read from a file descriptor
file    89 readdir                 - read directory entry
file    85 readlink                - read value of a symbolic link
file   145 readv                   - read data into multiple buffers
file    38 rename                  - change the name or location of a file
file    40 rmdir                   - delete a directory
file   187 sendfile                - transfer data between file descriptors
file   106 stat                    - get file status
file    99 statfs                  - get file system statistics
file   115 swapoff                 - stop swapping to file/device
file    87 swapon                  - start/stop swapping to file/device
file    83 symlink                 - make a new name for a file
file    36 sync                    - commit buffer cache to disk
file    92 truncate                - truncate file to specified length
file    60 umask                   - set file creation mask
file    22 umount                  - mount and unmount filesystemsx
file    52 umount2                 - mount and unmount filesystemsx
file    10 unlink                  - delete a name and possibly the file it refers to
file    62 ustat                   - get file system statistics 
file    30 utime                   - chg access and/or modification times
file     4 write                   - write   - write to a file descriptor
file   146 writev                  - read or write a vector

ioctl   54 ioctl                   - control device

memory  45 brk                     - change data segment size
memory 150 mlock                   - disable paging for some parts of memory 
memory 152 mlockall                - disable paging for calling process
memory  90 mmap                    - map or unmap files or devices into memory
memory 125 mprotect                - control allowable accesses to a region of memory
memory 163 mremap                  - re-map a virtual memory address
memory 144 msync                   - synchronize a file with a memory map
memory 151 munlock                 - reenable paging for some parts of memory
memory 153 munlockall              - reenable paging for calling process
memory  91 munmap                  - unmap files or devices into memory

process  51 acct                    - switch process accounting on or off
process 184 capget                  - get process capabilities
process 185 capset                  - set process capabilities
process 120 clone                   - create a child process
process  11 execve                  - execute program
process   1 exit                    - terminate the current process
process   2 fork                    - create a child process 
process  96 getpriority             - get program scheduling priority
process 112 idle                    - make process 0 idle
process 128 init_module             - initialize a loadable module entry
process 117 ipc                     - System V IPC system calls
process 142 newselect               - sync I/O multiplexing
process  34 nice                    - change process priority
process 136 personality             - set the process execution domain
process 172 prctl                   - operations on a process
process  26 ptrace                  - process trace
process  97 setpriority             - set program scheduling priority
process 190 vfork                   - create a child process and block parent
process 111 vhangup                 - virtually hangup the current tty

signal  27 alarm                   - set an alarm clock for delivery of a signal
signal  37 kill                    - send signal to a process
signal  29 pause                   - wait for signal
signal 174 rt_sigaction            - setup rt sighnd (RTL)
signal 176 rt_sigpending           - real time sigaction
signal 175 rt_sigprocmask          - real time sigprocmask
signal 178 rt_sigqueueinfo         - real time sigqueueingo
signal 173 rt_sigreturn            - real time sigreturn
signal 179 rt_sigsuspend           - real time sigsuspend
signal 177 rt_sigtimedwait         - real time sigtimedwait
signal  68 sgetmask                - 
signal  67 sigaction               - POSIX signal handling
signal 186 sigaltstack             - get or set alternate signal stack content
signal  48 signal                  - ANSI C signal handling
signal  73 sigpending              - POSIX signal handling functions
signal 126 sigprocmask             - POSIX signal handling functions
signal 119 sigreturn               - return from signal handler and cleanup stack frame
signal  72 sigsuspend              - POSIX signal handling functionsx
signal  69 ssetmask                - 

system 134 bdflush                 - start, flush, or tune buffer-dirty-flush daemon
system 127 create_module           - create a loadable module entry
system 129 delete_module           - delete a loadable module entry 
system 130 get_kernel_syms         - retrieve exported kernel and module symbols 
system 188 getpmsg                 - UNIMPLEMENTED
system  76 getrlimit               - get resource limits and usage
system  77 getrusage               - get resource limits and usage
system 101 ioperm                  - set port input/output permissions
system 110 iopl                    - iopl   - change I/O privilege level
system 123 modify_ldt              - get or set ldt
system 169 nfsservctl              - syscall interface to kernel nfs daemon
system 167 query_module            - query the kernel for bits pertaining to modules
system 131 quotactl                - manipulate disk quotas
system  88 reboot                  - reboot or enable/disable Ctrl-Alt-Del
system 159 sched_get_priority_max  - get static priority
system 160 sched_get_priority_min  - get static priority rng
system 155 sched_getparam          - get scheduling parameters
system 157 sched_getscheduler      - get scheduling algo/param
system 161 sched_rr_get_interval   - get the SCHED_RR interval for the named
system 241 sched_setaffinity       - get a process's CPU
system 154 sched_setparam          - get scheduling parameters
system 156 sched_setscheduler      - get scheduling algo-
system 158 sched_yield             - yield the processor
system 121 setdomainname           - get/set domain name
system  74 sethostname             - set host name 
system  75 setrlimit               - set resource limits and usage
system 102 socketcall              - socket system calls
system 149 sysctl                  - read/write system parameters
system 116 sysinfo                 - returns information on overall system statistics
system 103 syslog                  - read  and/or clear kernel message ring buffer; set
system  58 ulimit                  - UNIMPLEMENTED
system 122 uname                   - get name and information about current kernel
system  86 uselib                  - select shared library
system 166 vm86                    - enter virtual 8086 mode
system 113 vm86old                 - enter virtual 8086 mode

timing 124 adjtimex                - adjtimex   - tune kernel clock
timing 105 getitimer               - get  value of an interval timer
timing  78 gettimeofday            - get time
timing 162 nanosleep               - pause execution for a specified time
timing 168 poll                    - wait for some event on a file descriptor
timing  98 profil                  - UNIMPLEMENTED execution time profile
timing  82 select                  - synchronous I/O
timing 104 setitimer               - set an interval timer
timing  79 settimeofday            - set time
timing  25 stime                   - set time
timing  13 time                    - get time in seconds
timing  43 times                   - get process times
timing 114 wait4                   - wait for process termination, BSD style
timing   7 waitpid                 - wait for process termination  

undoc  137 afs_syscall             - UNIMPLEMENTED
undoc   17 break                   - UNIMPLEMENTED
undoc  212 chown32                 - see chown
undoc  266 clock_getres            - get clock precision 
undoc  265 clock_gettime           - get specified time
undoc  267 clock_nanosleep         - process sleep
undoc  264 clock_settime           - set specified time
undoc  254 epoll_create            - open an epoll file descriptor
undoc  255 epoll_ctl               - control interface for an epoll descriptor
undoc  256 epoll_wait              - wait for an I/O event on an epoll file descriptor
undoc  252 exit_group              - exit all process's in group
undoc  250 fadvise64               - 
undoc  272 fadvise64_64            - 
undoc  207 fchown32                - see chown
undoc  221 fcntl64                 - 
undoc  231 fgetxattr               - get extended attribute
undoc  234 flistxattr              - list extended attribute
undoc  237 fremovexattr            - remove extended attribute
undoc  228 fsetxattr               - set extended attribute
undoc  197 fstat64                 - 
undoc  269 fstatfs64               - 
undoc   35 ftime                   - UNIMPLEMENTED return date and time
undoc  194 ftruncate64             - 
undoc  240 futex                   - Fast Userspace Locking system call
undoc  220 getdents64              - 
undoc  202 getegid32               - see getegid
undoc  201 geteuid32               - see geteuid
undoc  200 getgid32                - see getgid
undoc  205 getgroups32             - see getgroups
undoc  275 get_mempolicy           - 
undoc  211 getresgid32             - 
undoc  209 getresuid32             - 
undoc  244 get_thread_area         - Get a Thread Local Storage (TLS) area 
undoc  224 gettid                  - get thread identification
undoc  199 getuid32                - see getuid
undoc  229 getxattr                - retrieve an extended attribute value
undoc   32 gtty                    - UNIMPLEMENTED
undoc  249 io_cancel               - Cancel an outstanding asynchronous I/O operation
undoc  246 io_destroy              - Destroy an asynchronous I/O context 
undoc  247 io_getevents            - Read asynchronous I/O events from completion queue
undoc  245 io_setup                - io_setup   - Create an asynchronous I/O context
undoc  248 io_submit               - Submit asynchronous I/O blocks for processing
undoc  198 lchown32                - see lchown
undoc  230 lgetxattr               - get extended attribute
undoc  232 listxattr               - list extended attribute names
undoc  233 llistxattr              - list extended attributes
undoc   53 lock                    - UNIMPLEMENTED
undoc  253 lookup_dcookie          - return a directory entry's path
undoc  236 lremovexattr            - remove extended attributes
undoc  227 lsetxattr               - set extended attributes
undoc  196 lstat64                 - 
undoc  219 madvise                 - give advice about use of memory
undoc  219 madvise1                - 
undoc  274 mbind                   - 
undoc  218 mincore                 - get information on whether pages are in core 
undoc  192 mmap2                   - map files or devices into memory
undoc   56 mpx                     - UNIMPLEMENTED
undoc  282 mq_getsetattr           - 
undoc  281 mq_notify               - 
undoc  277 mq_open                 - 
undoc  280 mq_timedreceive         - 
undoc  279 mq_timedsend            - 
undoc  278 mq_unlink               - 
undoc   28 oldfstat                - obsolete DO NOT USE
undoc   84 oldlstat                - obsolete
undoc   59 oldolduname             - obsolete
undoc   18 oldstat                 - obsolete
undoc  109 olduname                - obsolete
undoc  217 pivot_root              - change the root file system
undoc  180 pread64                 - read/write without advancing file descriptor
undoc   44 prof                    - UNIMPLEMENTED
undoc  189 putpmsg                 - UNIMPLEMENTED
undoc  181 pwrite64                - write to file descriptor at offset
undoc  225 readahead               - Read in advance pages of a file
undoc  257 remap_file_pages        - create a non-linear file mapping
undoc  235 removexattr             - remove an extended attribute
undoc  223 rsbac                   - 
undoc  242 sched_getaffinity       - 
undoc  239 sendfile64              - 
undoc  216 setfsgid32              - see setfsgid
undoc  215 setfsuid32              - see setfsuit
undoc  214 setgid32                - see setgid
undoc  206 setgroups32             - see setgroupd
undoc  276 set_mempolicy           - 
undoc  204 setregid32              - see setregid
undoc  210 setresgid32             - see setresgid
undoc  208 setresuid32             - see setresuid
undoc  203 setreuid32              - see setreuid
undoc  243 set_thread_area         - Set a Thread Local Storage (TLS) area
undoc  258 set_tid_address         - 
undoc  213 setuid32                - see setuid
undoc  226 setxattr                - set an extended attribute value
undoc  195 stat64                  - 
undoc  268 statfs64                - 
undoc   31 stty                    - UNIMPLEMENTED
undoc  135 sysfs                   - get file system type information
undoc  283 sys_kexec_load          - 
undoc  270 tgkill                  - 
undoc  259 timer_create            - 
undoc  263 timer_delete            - 
undoc  262 timer_getoverrun        - 
undoc  261 timer_gettime           - 
undoc  260 timer_settime           - 
undoc  238 tkill                   - send a signal to a single process
undoc  193 truncate64              - 
undoc  191 ugetrlimit              - 
undoc  251 unknown                 - 
undoc  271 utimes                  - change access and/or modification times of an inodetimes    
undoc  273 vserver                 - 
