celbpf

package

v1.7.0 Latest Latest Go to latest Published: Apr 29, 2026 License: Apache-2.0 Imports: 22 Imported by: 0

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CEL -> BPF code generation Heavily based on an earlier implementation by Yutaro Hayakawa <yutaro.hayakawa@isovalent.com>

Cel -> BPF code generation Heavily based on an earlier implementation by Yutaro Hayakawa <yutaro.hayakawa@isovalent.com>

CEL -> BPF code generation Heavily based on an earlier implementation by Yutaro Hayakawa <yutaro.hayakawa@isovalent.com>

Cel -> BPF code generation Heavily based on an earlier implementation by Yutaro Hayakawa <yutaro.hayakawa@isovalent.com>

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func Compile(celExpr string, sig []v1alpha1.KProbeArg, labelPrefix string) (asm.Instructions, []uint16, error)

func CompileEmptyFunction(fnName string) asm.Instructions

func CompileFn(fnName, celExpr string, sig []v1alpha1.KProbeArg) (asm.Instructions, []uint16, error)

func EnabledInBPF() bool

EnabledInBPF returns true if celbpf is supported in the BPF programs

func Supported() bool

Supported returns true if celbpf is supported at runtime NB: The cel_expr code uses bpf-to-bpf calls, so we need to detect whether mixing bpf-to-bpf calls and tail-calls is allowed. See: https://lore.kernel.org/bpf/20200829231925.GB31692@ranger.igk.intel.com/T/

type Env struct{}

type ExprArg struct {
	GenTy     int
	ArgOffset int
}

type Provider struct{}

func NewProvider() (*Provider, error)

func (p *Provider) EnumValue(_ string) cgRef.Val

func (p *Provider) FindIdent(_ string) (cgRef.Val, bool)

func (p *Provider) FindStructFieldNames(_ string) ([]string, bool)

func (p *Provider) FindStructFieldType(_, _ string) (*cgTypes.FieldType, bool)

func (p *Provider) FindStructType(_ string) (*cgTypes.Type, bool)

func (p *Provider) NewValue(_ string, _ map[string]cgRef.Val) cgRef.Val