elf

package

v1.6.0 Latest Latest Go to latest Published: Oct 22, 2025 License: Apache-2.0 Imports: 10 Imported by: 0

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Valid go.mod file
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Stable version
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Repository

github.com/cilium/tetragon

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Documentation ¶

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Index ¶

Constants
type Integer
type RegScanner
- func (sc *RegScanner) Reset() *RegScanner
- func (sc *RegScanner) Scan(state fmt.ScanState, _ rune) error
type SafeELFFile
- func NewSafeELFFile(r io.ReaderAt) (safe *SafeELFFile, err error)
- func OpenSafeELFFile(path string) (safe *SafeELFFile, err error)
type UsdtArg
type UsdtArgType
type UsdtSpec
type UsdtTarget

Constants ¶

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const (
	USDT_ARG_TYPE_NONE      uint8 = 0
	USDT_ARG_TYPE_CONST     uint8 = 1
	USDT_ARG_TYPE_REG       uint8 = 2
	USDT_ARG_TYPE_REG_DEREF uint8 = 3
	USDT_ARG_TYPE_SIB       uint8 = 4
)

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Integer ¶ added in v1.6.0

type Integer interface {
	~int | ~int8 | ~int16 | ~int32 | ~int64 | ~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr
}

Integer represents all possible integer types. Remove when x/exp/constraints is moved to the standard library.

type RegScanner ¶ added in v1.6.0

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

func (*RegScanner) Reset ¶ added in v1.6.0

func (sc *RegScanner) Reset() *RegScanner

func (*RegScanner) Scan ¶ added in v1.6.0

func (sc *RegScanner) Scan(state fmt.ScanState, _ rune) error

type SafeELFFile ¶

type SafeELFFile struct {
	*elf.File
}

func NewSafeELFFile ¶

func NewSafeELFFile(r io.ReaderAt) (safe *SafeELFFile, err error)

NewSafeELFFile reads an ELF safely.

Any panic during parsing is turned into an error. This is necessary since there are a bunch of unfixed bugs in debug/elf.

https://github.com/golang/go/issues?q=is%3Aissue+is%3Aopen+debug%2Felf+in%3Atitle

func OpenSafeELFFile ¶

func OpenSafeELFFile(path string) (safe *SafeELFFile, err error)

OpenSafeELFFile reads an ELF from a file.

It works like NewSafeELFFile, with the exception that safe.Close will close the underlying file.

func (*SafeELFFile) Address ¶ added in v1.6.0

func (se *SafeELFFile) Address(name string) (uint64, error)

func (*SafeELFFile) Offset ¶

func (se *SafeELFFile) Offset(name string) (uint64, error)

func (*SafeELFFile) OffsetFromAddr ¶ added in v1.6.0

func (se *SafeELFFile) OffsetFromAddr(addr uint64) (uint64, error)

func (*SafeELFFile) ProgByVaddr ¶ added in v1.6.0

func (se *SafeELFFile) ProgByVaddr(vaddr uint64) *elf.Prog

ProgByVaddr returns elf program header for the specified vaddr.

func (*SafeELFFile) SectionsByName ¶ added in v1.6.0

func (se *SafeELFFile) SectionsByName(name string) []*elf.Section

SectionsByName returns all sections in the file with the specified section name.

func (*SafeELFFile) SectionsByType ¶ added in v1.6.0

func (se *SafeELFFile) SectionsByType(typ elf.SectionType) []*elf.Section

SectionsByType returns all sections in the file with the specified section type.

func (*SafeELFFile) UsdtTargets ¶ added in v1.6.0

func (se *SafeELFFile) UsdtTargets() ([]*UsdtTarget, error)

type UsdtArg ¶ added in v1.6.0

type UsdtArg struct {
	ValOff    uint64
	RegOff    uint16
	RegIdxOff uint16
	Shift     uint8
	Scale     uint8
	Type      uint8
	Signed    bool
	Size      int
	Str       string
}

type UsdtArgType ¶ added in v1.6.0

type UsdtArgType int

type UsdtSpec ¶ added in v1.6.0

type UsdtSpec struct {
	Off      uint64
	Base     uint64
	Sema     uint64
	Provider string
	Name     string
	ArgsStr  string
	ArgsCnt  uint32
	Args     [12]UsdtArg
}

type UsdtTarget ¶ added in v1.6.0

type UsdtTarget struct {
	Spec    *UsdtSpec
	IpAbs   uint64
	IpRel   uint64
	SemaOff uint64
}

Source Files ¶

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