Struct linux_perf_data::jitdump::JitCodeLoadRecord

pub struct JitCodeLoadRecord<'a> {
    pub pid: u32,
    pub tid: u32,
    pub vma: u64,
    pub code_addr: u64,
    pub code_index: u64,
    pub function_name: RawData<'a>,
    pub code_bytes: RawData<'a>,
}

A parsed JIT_CODE_LOAD record, for a single jitted function.

This carries the function name and the code bytes.

Fields

pid: u32

The process ID of the runtime generating the jitted code.

tid: u32

The thread ID of the runtime thread generating the jitted code.

vma: u64

The virtual address where code_bytes starts in the memory of the process.

code_addr: u64

The code start address for the jitted code. It is unclear in what cases this would differ from vma.

code_index: u64

A unique identifier for this piece of jitted code, to allow future JitCodeMoveRecords to refer back to this record.

function_name: RawData<'a>

The function name, in ASCII.

code_bytes: RawData<'a>

The jitted code, as raw bytes. These bytes can be decoded into assembly instructions of the CPU architecture given in the file header.

Implementations

impl<'a> JitCodeLoadRecord<'a>

pub const NAME_OFFSET_FROM_RECORD_START: usize = 56usize

The offset, in bytes, between the start of the record header and the start of the function name.

pub fn parse(endian: Endianness, data: RawData<'a>) -> Result<Self, Error>

pub fn parse_impl<O: ByteOrder>(data: RawData<'a>) -> Result<Self, Error>

pub fn code_bytes_offset_from_record_header_start(&self) -> usize

The offset, in bytes, between the start of the record header and the start of the code bytes.

This can be different for each record because the code bytes are after the function name, so this offset depends on the length of the function name.

Trait Implementations

impl<'a> Clone for JitCodeLoadRecord<'a>

fn clone(&self) -> JitCodeLoadRecord<'a>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Debug for JitCodeLoadRecord<'a>

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

Formats the value using the given formatter.