github.com/cilium/ebpf@v0.10.0/examples/ringbuffer/bpf_bpfel.go (about)

     1  // Code generated by bpf2go; DO NOT EDIT.
     2  //go:build 386 || amd64 || amd64p32 || arm || arm64 || mips64le || mips64p32le || mipsle || ppc64le || riscv64
     3  // +build 386 amd64 amd64p32 arm arm64 mips64le mips64p32le mipsle ppc64le riscv64
     4  
     5  package main
     6  
     7  import (
     8  	"bytes"
     9  	_ "embed"
    10  	"fmt"
    11  	"io"
    12  
    13  	"github.com/cilium/ebpf"
    14  )
    15  
    16  type bpfEvent struct {
    17  	Pid  uint32
    18  	Comm [80]uint8
    19  }
    20  
    21  // loadBpf returns the embedded CollectionSpec for bpf.
    22  func loadBpf() (*ebpf.CollectionSpec, error) {
    23  	reader := bytes.NewReader(_BpfBytes)
    24  	spec, err := ebpf.LoadCollectionSpecFromReader(reader)
    25  	if err != nil {
    26  		return nil, fmt.Errorf("can't load bpf: %w", err)
    27  	}
    28  
    29  	return spec, err
    30  }
    31  
    32  // loadBpfObjects loads bpf and converts it into a struct.
    33  //
    34  // The following types are suitable as obj argument:
    35  //
    36  //	*bpfObjects
    37  //	*bpfPrograms
    38  //	*bpfMaps
    39  //
    40  // See ebpf.CollectionSpec.LoadAndAssign documentation for details.
    41  func loadBpfObjects(obj interface{}, opts *ebpf.CollectionOptions) error {
    42  	spec, err := loadBpf()
    43  	if err != nil {
    44  		return err
    45  	}
    46  
    47  	return spec.LoadAndAssign(obj, opts)
    48  }
    49  
    50  // bpfSpecs contains maps and programs before they are loaded into the kernel.
    51  //
    52  // It can be passed ebpf.CollectionSpec.Assign.
    53  type bpfSpecs struct {
    54  	bpfProgramSpecs
    55  	bpfMapSpecs
    56  }
    57  
    58  // bpfSpecs contains programs before they are loaded into the kernel.
    59  //
    60  // It can be passed ebpf.CollectionSpec.Assign.
    61  type bpfProgramSpecs struct {
    62  	KprobeExecve *ebpf.ProgramSpec `ebpf:"kprobe_execve"`
    63  }
    64  
    65  // bpfMapSpecs contains maps before they are loaded into the kernel.
    66  //
    67  // It can be passed ebpf.CollectionSpec.Assign.
    68  type bpfMapSpecs struct {
    69  	Events *ebpf.MapSpec `ebpf:"events"`
    70  }
    71  
    72  // bpfObjects contains all objects after they have been loaded into the kernel.
    73  //
    74  // It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
    75  type bpfObjects struct {
    76  	bpfPrograms
    77  	bpfMaps
    78  }
    79  
    80  func (o *bpfObjects) Close() error {
    81  	return _BpfClose(
    82  		&o.bpfPrograms,
    83  		&o.bpfMaps,
    84  	)
    85  }
    86  
    87  // bpfMaps contains all maps after they have been loaded into the kernel.
    88  //
    89  // It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
    90  type bpfMaps struct {
    91  	Events *ebpf.Map `ebpf:"events"`
    92  }
    93  
    94  func (m *bpfMaps) Close() error {
    95  	return _BpfClose(
    96  		m.Events,
    97  	)
    98  }
    99  
   100  // bpfPrograms contains all programs after they have been loaded into the kernel.
   101  //
   102  // It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
   103  type bpfPrograms struct {
   104  	KprobeExecve *ebpf.Program `ebpf:"kprobe_execve"`
   105  }
   106  
   107  func (p *bpfPrograms) Close() error {
   108  	return _BpfClose(
   109  		p.KprobeExecve,
   110  	)
   111  }
   112  
   113  func _BpfClose(closers ...io.Closer) error {
   114  	for _, closer := range closers {
   115  		if err := closer.Close(); err != nil {
   116  			return err
   117  		}
   118  	}
   119  	return nil
   120  }
   121  
   122  // Do not access this directly.
   123  //
   124  //go:embed bpf_bpfel.o
   125  var _BpfBytes []byte