func.go

Documentation: github.com/cilium/ebpf/asm

     1  package asm
     2  
     3  //go:generate stringer -output func_string.go -type=BuiltinFunc
     4  
     5  // BuiltinFunc is a built-in eBPF function.
     6  type BuiltinFunc int32
     7  
     8  func (_ BuiltinFunc) Max() BuiltinFunc {
     9  	return maxBuiltinFunc - 1
    10  }
    11  
    12  // eBPF built-in functions
    13  //
    14  // You can regenerate this list using the following gawk script:
    15  //
    16  //    /FN\(.+\),/ {
    17  //      match($1, /\((.+)\)/, r)
    18  //      split(r[1], p, "_")
    19  //      printf "Fn"
    20  //      for (i in p) {
    21  //        printf "%s%s", toupper(substr(p[i], 1, 1)), substr(p[i], 2)
    22  //      }
    23  //      print ""
    24  //    }
    25  //
    26  // The script expects include/uapi/linux/bpf.h as it's input.
    27  const (
    28  	FnUnspec BuiltinFunc = iota
    29  	FnMapLookupElem
    30  	FnMapUpdateElem
    31  	FnMapDeleteElem
    32  	FnProbeRead
    33  	FnKtimeGetNs
    34  	FnTracePrintk
    35  	FnGetPrandomU32
    36  	FnGetSmpProcessorId
    37  	FnSkbStoreBytes
    38  	FnL3CsumReplace
    39  	FnL4CsumReplace
    40  	FnTailCall
    41  	FnCloneRedirect
    42  	FnGetCurrentPidTgid
    43  	FnGetCurrentUidGid
    44  	FnGetCurrentComm
    45  	FnGetCgroupClassid
    46  	FnSkbVlanPush
    47  	FnSkbVlanPop
    48  	FnSkbGetTunnelKey
    49  	FnSkbSetTunnelKey
    50  	FnPerfEventRead
    51  	FnRedirect
    52  	FnGetRouteRealm
    53  	FnPerfEventOutput
    54  	FnSkbLoadBytes
    55  	FnGetStackid
    56  	FnCsumDiff
    57  	FnSkbGetTunnelOpt
    58  	FnSkbSetTunnelOpt
    59  	FnSkbChangeProto
    60  	FnSkbChangeType
    61  	FnSkbUnderCgroup
    62  	FnGetHashRecalc
    63  	FnGetCurrentTask
    64  	FnProbeWriteUser
    65  	FnCurrentTaskUnderCgroup
    66  	FnSkbChangeTail
    67  	FnSkbPullData
    68  	FnCsumUpdate
    69  	FnSetHashInvalid
    70  	FnGetNumaNodeId
    71  	FnSkbChangeHead
    72  	FnXdpAdjustHead
    73  	FnProbeReadStr
    74  	FnGetSocketCookie
    75  	FnGetSocketUid
    76  	FnSetHash
    77  	FnSetsockopt
    78  	FnSkbAdjustRoom
    79  	FnRedirectMap
    80  	FnSkRedirectMap
    81  	FnSockMapUpdate
    82  	FnXdpAdjustMeta
    83  	FnPerfEventReadValue
    84  	FnPerfProgReadValue
    85  	FnGetsockopt
    86  	FnOverrideReturn
    87  	FnSockOpsCbFlagsSet
    88  	FnMsgRedirectMap
    89  	FnMsgApplyBytes
    90  	FnMsgCorkBytes
    91  	FnMsgPullData
    92  	FnBind
    93  	FnXdpAdjustTail
    94  	FnSkbGetXfrmState
    95  	FnGetStack
    96  	FnSkbLoadBytesRelative
    97  	FnFibLookup
    98  	FnSockHashUpdate
    99  	FnMsgRedirectHash
   100  	FnSkRedirectHash
   101  	FnLwtPushEncap
   102  	FnLwtSeg6StoreBytes
   103  	FnLwtSeg6AdjustSrh
   104  	FnLwtSeg6Action
   105  	FnRcRepeat
   106  	FnRcKeydown
   107  	FnSkbCgroupId
   108  	FnGetCurrentCgroupId
   109  	FnGetLocalStorage
   110  	FnSkSelectReuseport
   111  	FnSkbAncestorCgroupId
   112  	FnSkLookupTcp
   113  	FnSkLookupUdp
   114  	FnSkRelease
   115  	FnMapPushElem
   116  	FnMapPopElem
   117  	FnMapPeekElem
   118  	FnMsgPushData
   119  	FnMsgPopData
   120  	FnRcPointerRel
   121  	FnSpinLock
   122  	FnSpinUnlock
   123  	FnSkFullsock
   124  	FnTcpSock
   125  	FnSkbEcnSetCe
   126  	FnGetListenerSock
   127  	FnSkcLookupTcp
   128  	FnTcpCheckSyncookie
   129  	FnSysctlGetName
   130  	FnSysctlGetCurrentValue
   131  	FnSysctlGetNewValue
   132  	FnSysctlSetNewValue
   133  	FnStrtol
   134  	FnStrtoul
   135  	FnSkStorageGet
   136  	FnSkStorageDelete
   137  	FnSendSignal
   138  	FnTcpGenSyncookie
   139  	FnSkbOutput
   140  	FnProbeReadUser
   141  	FnProbeReadKernel
   142  	FnProbeReadUserStr
   143  	FnProbeReadKernelStr
   144  	FnTcpSendAck
   145  	FnSendSignalThread
   146  	FnJiffies64
   147  	FnReadBranchRecords
   148  	FnGetNsCurrentPidTgid
   149  	FnXdpOutput
   150  	FnGetNetnsCookie
   151  	FnGetCurrentAncestorCgroupId
   152  	FnSkAssign
   153  	FnKtimeGetBootNs
   154  	FnSeqPrintf
   155  	FnSeqWrite
   156  	FnSkCgroupId
   157  	FnSkAncestorCgroupId
   158  	FnRingbufOutput
   159  	FnRingbufReserve
   160  	FnRingbufSubmit
   161  	FnRingbufDiscard
   162  	FnRingbufQuery
   163  	FnCsumLevel
   164  	FnSkcToTcp6Sock
   165  	FnSkcToTcpSock
   166  	FnSkcToTcpTimewaitSock
   167  	FnSkcToTcpRequestSock
   168  	FnSkcToUdp6Sock
   169  	FnGetTaskStack
   170  	FnLoadHdrOpt
   171  	FnStoreHdrOpt
   172  	FnReserveHdrOpt
   173  	FnInodeStorageGet
   174  	FnInodeStorageDelete
   175  	FnDPath
   176  	FnCopyFromUser
   177  	FnSnprintfBtf
   178  	FnSeqPrintfBtf
   179  	FnSkbCgroupClassid
   180  	FnRedirectNeigh
   181  	FnPerCpuPtr
   182  	FnThisCpuPtr
   183  	FnRedirectPeer
   184  	FnTaskStorageGet
   185  	FnTaskStorageDelete
   186  	FnGetCurrentTaskBtf
   187  	FnBprmOptsSet
   188  	FnKtimeGetCoarseNs
   189  	FnImaInodeHash
   190  	FnSockFromFile
   191  	FnCheckMtu
   192  	FnForEachMapElem
   193  	FnSnprintf
   194  	FnSysBpf
   195  	FnBtfFindByNameKind
   196  	FnSysClose
   197  	FnTimerInit
   198  	FnTimerSetCallback
   199  	FnTimerStart
   200  	FnTimerCancel
   201  	FnGetFuncIp
   202  	FnGetAttachCookie
   203  	FnTaskPtRegs
   204  	FnGetBranchSnapshot
   205  	FnTraceVprintk
   206  	FnSkcToUnixSock
   207  	FnKallsymsLookupName
   208  	FnFindVma
   209  	FnLoop
   210  	FnStrncmp
   211  	FnGetFuncArg
   212  	FnGetFuncRet
   213  	FnGetFuncArgCnt
   214  	FnGetRetval
   215  	FnSetRetval
   216  	FnXdpGetBuffLen
   217  	FnXdpLoadBytes
   218  	FnXdpStoreBytes
   219  	FnCopyFromUserTask
   220  	FnSkbSetTstamp
   221  	FnImaFileHash
   222  	FnKptrXchg
   223  	FnMapLookupPercpuElem
   224  	FnSkcToMptcpSock
   225  	FnDynptrFromMem
   226  	FnRingbufReserveDynptr
   227  	FnRingbufSubmitDynptr
   228  	FnRingbufDiscardDynptr
   229  	FnDynptrRead
   230  	FnDynptrWrite
   231  	FnDynptrData
   232  
   233  	maxBuiltinFunc
   234  )
   235  
   236  // Call emits a function call.
   237  func (fn BuiltinFunc) Call() Instruction {
   238  	return Instruction{
   239  		OpCode:   OpCode(JumpClass).SetJumpOp(Call),
   240  		Constant: int64(fn),
   241  	}
   242  }
   243
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