Struct EntryHeader

pub struct EntryHeader {
    pub length: u32,
    pub load_address: u32,
    pub entry_address: Option<u32>,
}

EntryHeader represents the header of a specific entry within a binary image. It includes metadata about the entry, such as its length, load address, and entry point.

This structure is used to describe a segment or block of data that is loaded into memory at a specified address and contains an entry point that the system can use to jump to the start of execution.

Fields:

• length: The length of the entry in bytes. This defines how much memory the entry occupies.
• load_address: The memory address at which the entry is loaded into the system’s memory space.
• entry_address: The address to which control is transferred when the entry is executed. By default, it’s set to 0xFFFF_FFFF (None), which indicates an invalid entry address.

Fields

length: u32

The length of the entry in bytes.

load_address: u32

The load address in memory where the entry will be loaded.

entry_address: Option<u32>

The entry address, the address to which the system will jump to start execution. Defaults to 0xFFFF_FFFF (None), indicating an invalid address.

Trait Implementations

impl BinarySize for EntryHeader

fn binary_size() -> usize

Returns the binary size of the EntryHeader struct in bytes.

Returns

• 0x20: The size of the EntryHeader struct in bytes.

impl Debug for EntryHeader

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for EntryHeader

fn default() -> EntryHeader

Returns the default values for the EntryHeader struct.

The default values are:

• length: 0 (indicating no data or length of the entry).
• load_address: 0 (indicating the entry is not loaded anywhere).
• entry_address: 0xFFFF_FFFF (None) (invalid entry address, typically indicating no valid entry).

Returns

• EntryHeader: A struct with default values.

impl FromStream for EntryHeader

fn read_from<R>(&mut self, reader: &mut R) -> Result<(), Error>

where R: Read + Seek,

Reads an EntryHeader from the provided reader (e.g., a file or memory buffer).

Arguments

• reader: A mutable reference to an object that implements Read and Seek (e.g., a file or buffer).

Returns

• Ok(()): If the deserialization is successful.
• Err(Error): If there is an error reading from the stream, such as an unexpected end of data.

impl ToStream for EntryHeader

fn write_to<W>(&self, writer: &mut W) -> Result<(), Error>

where W: Write + Seek,

Serializes the EntryHeader struct to a stream.

Parameters

• writer: A mutable reference to a type that implements the std::io::Write trait. The data will be written to this stream.

Returns

• Ok(()): If the data is written successfully.
• Err(Error): If there is an issue writing the data to the stream.