| Blkcnt64_t | 64-bit block count | 
| Blkcnt_t | Block count type. | 
| Blksize_t | Block size type. | 
| cbool | Boolean type | 
| cchar | Alias for #rtl.UnixType.cchar | 
| cdouble | Double precision real format. | 
| cfloat | Floating-point real format | 
| cint | C type: integer (natural size) | 
| cint16 | C type: 16 bits sized, signed integer. | 
| cint32 | C type: 32 bits sized, signed integer. | 
| cint64 | C type: 64 bits sized, signed integer. | 
| cint8 | C type: 8 bits sized, signed integer. | 
| clock_t | Clock ticks type | 
| clong | C type: long signed integer (double sized) | 
| clonglong | C type: 64-bit (double long) signed integer. | 
| coff_t | Character offset type | 
| cschar | Signed character type | 
| cshort | C type: short signed integer (half sized) | 
| csigned | Signed integer | 
| csint | Signed integer | 
| csize_t | Character size type | 
| cslong | Signed long | 
| cslonglong | Signed longlong type | 
| csshort | Short signed integer type | 
| cuchar | Alias for #rtl.UnixType.cuchar | 
| cuint | C type: unsigned integer (natural size) | 
| cuint16 | C type: 16 bits sized, unsigned integer. | 
| cuint32 | C type: 32 bits sized, unsigned integer. | 
| cuint64 | C type: 64 bits sized, unsigned integer. | 
| cuint8 | C type: 8 bits sized, unsigned integer. | 
| culong | C type: long unsigned integer (double sized) | 
| culonglong | C type: 64-bit (double long) unsigned integer. | 
| cunsigned | Alias for #rtl.unixtype.cunsigned | 
| cushort | C type: short unsigned integer (half sized) | 
| dev_t | Device descriptor type. | 
| Dir | Record used in fpOpenDir  and fpReadDir  calls | 
| Dirent | Record used in the fpReadDir  function to return files in a directory. | 
| FLock | Lock description type for fpFCntl  lock call. | 
| gid_t | Group ID type. | 
| ino_t | Inode type. | 
| iovec | IO buffer structure | 
| kernel_gid_t | Kernel group ID type | 
| kernel_loff_t | Long kernel offset type | 
| kernel_mode_t | Kernel mode type | 
| kernel_off_t | Kernel offset type | 
| kernel_uid_t | Kernel user ID type | 
| mode_t | Inode mode type. | 
| nlink_t | Number of links type. | 
| off_t | Offset type. | 
| PBlkCnt | pointer to TBlkCnt  type. | 
| PBlkSize | Pointer to TBlkSize  type. | 
| pcbool | Pointer to boolean type | 
| pcchar | Alias for #rtl.UnixType.pcchar | 
| pcdouble | Pointer to cdouble  type. | 
| pcfloat | Pointer to cfloat  type. | 
| pcint | Pointer to cInt  type. | 
| pcint16 | Pointer to 16-bit signed integer type | 
| pcint32 | Pointer to signed 32-bit integer type | 
| pcint64 | Pointer to signed 64-bit integer type | 
| pcint8 | Pointer to 8-bits signed integer type | 
| pClock | Pointer to TClock  type. | 
| pclong | Pointer to cLong  type. | 
| pclonglong | Pointer to longlong type. | 
| pcschar | Pointer to signed character type | 
| pcshort | Pointer to cShort  type. | 
| pcsigned | Pointer to signed integer | 
| pcsint | Pointer to signed integer | 
| pcsize_t | Pointer to csize_t | 
| pcslong | Pointer to signed long | 
| pcslonglong | Pointer to Signed longlong type | 
| pcsshort | Pointer to short signed integer type | 
| pcuchar | Alias for #rtl.UnixType.pcuchar | 
| pcuint | Pointer to cUInt  type. | 
| pcuint16 | Pointer to 16-bit unsigned integer type | 
| pcuint32 | Pointer to unsigned 32-bit integer type | 
| pcuint64 | Pointer to unsigned 64-bit integer type | 
| pcuint8 | Pointer to 8-bits unsigned integer type | 
| pculong | Pointer to cuLong  type. | 
| pculonglong | Unsigned longlong type | 
| pcunsigned | Alias for #rtl.unixtype.pcunsigned | 
| pcushort | Pointer to cuShort  type. | 
| pDev | Pointer to TDev  type. | 
| pDir | Pointer to TDir  record | 
| pDirent | Pointer to TDirent  record. | 
| pFDSet | Pointer to TFDSet  type. | 
| pFilDes | Pointer to TFilDes  type. | 
| pfpstate | Pointer to tfpstate  record. | 
| pGid | Pointer to TGid  type. | 
| pGrpArr | Pointer to TGrpArr  array. | 
| pid_t | Process ID type. | 
| pIno | Pointer to TIno  type. | 
| piovec | pointer to a iovec  record | 
| pMode | Pointer to TMode  type. | 
| pnLink | Pointer to TnLink  type. | 
| pOff | Pointer to TOff  type. | 
| pollfd | Poll structure | 
| pPid | Pointer to TPid  type. | 
| ppollfd | Pointer to tpollfd. | 
| PRLimit | Pointer to TRLimit  record | 
| psigactionrec | Pointer to SigActionRec  record type. | 
| PSigContext | Pointer to #rtl.baseunix.TSigContext  record type. | 
| psiginfo | Pointer to #rtl.baseunix.TSigInfo  record type. | 
| psigset | Pointer to SigSet  type. | 
| pSize | Pointer to TSize  type. | 
| pSize_t | Pointer to Size_t | 
| pSocklen | Pointer to TSockLen  type. | 
| psSize | Pointer to TsSize  type | 
| PStat | Pointer to TStat  type. | 
| pstatfs | Pointer to statfs type | 
| pthread_cond_t | Thread conditional variable type. | 
| pthread_mutex_t | Thread mutex type. | 
| pthread_t | POSIX thread type. | 
| pTime | Pointer to TTime  type. | 
| ptimespec | Pointer to timespec  type. | 
| ptimeval | Pointer to timeval  type. | 
| ptimezone | Pointer to TimeZone  record. | 
| ptime_t | Pointer to time_t  type. | 
| PTms | Pointer to TTms  type. | 
| Pucontext | Pointer to TUContext  type. | 
| pUid | Pointer to TUid  type. | 
| pUtimBuf | Pointer to TUTimBuf  type. | 
| PUtsName | Pointer to TUtsName  type. | 
| rlim_t | TRLimit record field type | 
| sigactionhandler | Callback prototype for a #rtl.baseunix.SigActionRec  record. | 
| sigactionhandler_t | Standard signal action handler prototype | 
| sigactionrec | Record used in fpSigAction  call. | 
| signalhandler | Simple signal handler prototype | 
| signalhandler_t | Standard signal handler prototype | 
| sigrestorerhandler | Alias for sigrestorerhandler_t  type. | 
| sigrestorerhandler_t | Standard signal action restorer prototype | 
| sigset | Signal set type | 
| sigset_t | Signal set type | 
| size_t | Size specification type. | 
| socklen_t | Socket address length type. | 
| ssize_t | Small size type. | 
| Stat | Record describing an inode (file) in the FPFstat  call. | 
| TBlkCnt | Alias for Blkcnt_t  type. | 
| TBlkSize | Alias for blksize_t  type. | 
| TClock | Alias for clock_t  type. | 
| TDev | Alias for dev_t  type. | 
| TDir | Alias for Dir  type. | 
| TDirent | Alias for Dirent  type. | 
| TFDSet | File descriptor set for fpSelect  call. | 
| TFDSetEl | Type alias for an element of the TFDSet | 
| TFilDes | Array of file descriptors as used in fpPipe  call. | 
| tfpreg | Record describing floating point register in signal handler. | 
| tfpstate | Record describing floating point unit in signal handler. | 
| tfpxreg |  | 
| tfpx_sw_bytes |  | 
| TGid | Alias for gid_t  type. | 
| TGrpArr | Array of gid_t  IDs | 
| timespec | Short time specification type. | 
| timeval | Time specification type. | 
| timezone | Record describing a timezone | 
| time_t | Time span type | 
| TIno | Alias for ino_t  type. | 
| TIOCtlRequest | Easy access alias for unixtype.TIOCtlRequest | 
| tiovec | Alias for the iovec  record type. | 
| TMode | Alias for mode_t  type. | 
| tms | Record containing timings for fpTimes  call. | 
| TnLink | Alias for nlink_t  type. | 
| TOff | Alias for off_t  type. | 
| TPid | Alias for pid_t  type. | 
| tpollfd | Alias for pollfd type | 
| TRLimit | Structure to return RLimit data in. | 
| tsigactionhandler | Alias for sigactionhandler_t  type. | 
| tsigaltstack | Provide the location of an alternate signal handler stack. | 
| TSigContext | Record describing the CPU context when a signal occurs. | 
| tsiginfo | Record describing the signal when a signal occurs. | 
| tsignalhandler | Alias for signalhandler_t  type. | 
| tsigrestorerhandler | Alias for sigrestorerhandler_t  type. | 
| tsigset | Alias for SigSet  type. | 
| TSize | Alias for size_t  type | 
| TSocklen | Alias for socklen_t  type. | 
| TsSize | Alias for ssize_t  type | 
| TStat | Alias for Stat  type. | 
| tstatfs | Record describing a file system in the unix.fpstatfs  call. | 
| TTime | Alias for TTime  type. | 
| Ttimespec | Alias for TimeSpec  type. | 
| TTimeVal | Alias for timeval  type. | 
| TTimeZone | Alias for TimeZone  record. | 
| TTms | Alias for Tms  record type. | 
| TUcontext | Context description record | 
| TUid | Alias for uid_t  type. | 
| TUtimBuf | Alias for UtimBuf  type. | 
| TUtsName | Alias for UtsName  type. | 
| txmmreg |  | 
| uid_t | User ID type | 
| UTimBuf | Record used in fpUtime  to set file access and modification times. | 
| UtsName | Record used to return kernel information in fpUName  function. |