btf

Documentation

Index

• func AddModulesToSpec(spec *btf.Spec, kmods []string) (*btf.Spec, error)
• func AvailableSyscalls() ([]string, error)
• func GetCachedBTFFile() string
• func GetSyscallsList() ([]string, error)
• func InitCachedBTF(lib, btf string) error
• func NewBTF() (*btf.Spec, error)
• func ValidateKprobeSpec(bspec *btf.Spec, call string, kspec *v1alpha1.KProbeSpec) error
• type ValidationFailed
  • func (e *ValidationFailed) Error() string
• type ValidationWarn
  • func (e *ValidationWarn) Error() string

Functions

func AddModulesToSpec

func AddModulesToSpec(spec *btf.Spec, kmods []string) (*btf.Spec, error)

func AvailableSyscalls

func AvailableSyscalls() ([]string, error)

AvailableSyscalls returns the list of available syscalls.

It uses syscallinfo.SyscallsNames() and filters calls via information in BTF.

func GetCachedBTFFile

func GetCachedBTFFile() string

func GetSyscallsList

func GetSyscallsList() ([]string, error)

func InitCachedBTF

func InitCachedBTF(lib, btf string) error

func NewBTF

func NewBTF() (*btf.Spec, error)

func ValidateKprobeSpec

func ValidateKprobeSpec(bspec *btf.Spec, call string, kspec *v1alpha1.KProbeSpec) error

ValidateKprobeSpec validates a kprobe spec based on BTF information

NB: turns out we need more than BTF information for the validation (see syscalls). We still keep this code in the btf package for now, and we can move it once we found a better home for it.

Types

type ValidationFailed

type ValidationFailed struct {
	// contains filtered or unexported fields
}

ValidationFailed is used to mark that validation was not successful and that the we should not continue with loading this spec.

func (*ValidationFailed) Error

func (e *ValidationFailed) Error() string

type ValidationWarn

type ValidationWarn struct {
	// contains filtered or unexported fields
}

ValidationWarn is used to mark that validation was not successful but it's not clear that the spec is problematic. Callers may use this error to issue a warning instead of aborting

func (*ValidationWarn) Error

func (e *ValidationWarn) Error() string