Struct goblin::mach::load_command::DysymtabCommand

[+] Show declaration

[+] Expand attributes
#[repr(C)]pub struct DysymtabCommand {
    pub cmd: u32,
    pub cmdsize: u32,
    pub ilocalsym: u32,
    pub nlocalsym: u32,
    pub iextdefsym: u32,
    pub nextdefsym: u32,
    pub iundefsym: u32,
    pub nundefsym: u32,
    pub tocoff: u32,
    pub ntoc: u32,
    pub modtaboff: u32,
    pub nmodtab: u32,
    pub extrefsymoff: u32,
    pub nextrefsyms: u32,
    pub indirectsymoff: u32,
    pub nindirectsyms: u32,
    pub extreloff: u32,
    pub nextrel: u32,
    pub locreloff: u32,
    pub nlocrel: u32,
}

[−] Expand description

This is the second set of the symbolic information which is used to support the data structures for the dynamically link editor.

The original set of symbolic information in the symtab_command which contains the symbol and string tables must also be present when this load command is present. When this load command is present the symbol table is organized into three groups of symbols: local symbols (static and debugging symbols) - grouped by module defined external symbols - grouped by module (sorted by name if not lib) undefined external symbols (sorted by name if MH_BINDATLOAD is not set, and in order the were seen by the static linker if MH_BINDATLOAD is set) In this load command there are offsets and counts to each of the three groups of symbols.

This load command contains a the offsets and sizes of the following new symbolic information tables: table of contents module table reference symbol table indirect symbol table The first three tables above (the table of contents, module table and reference symbol table) are only present if the file is a dynamically linked shared library. For executable and object modules, which are files containing only one module, the information that would be in these three tables is determined as follows: table of contents - the defined external symbols are sorted by name module table - the file contains only one module so everything in the file is part of the module. reference symbol table - is the defined and undefined external symbols

For dynamically linked shared library files this load command also contains offsets and sizes to the pool of relocation entries for all sections separated into two groups: external relocation entries local relocation entries For executable and object modules the relocation entries continue to hang off the section structures.

Fields

cmd: u32

cmdsize: u32

ilocalsym: u32

[−] Expand description

index to local symbols

nlocalsym: u32

[−] Expand description

number of local symbols

iextdefsym: u32

[−] Expand description

index to externally defined symbols

nextdefsym: u32

[−] Expand description

number of externally defined symbols

iundefsym: u32

[−] Expand description

index to undefined symbols

nundefsym: u32

[−] Expand description

number of undefined symbols

tocoff: u32

[−] Expand description

file offset to table of contents

ntoc: u32

[−] Expand description

number of entries in table of contents

modtaboff: u32

[−] Expand description

file offset to module table

nmodtab: u32

[−] Expand description

number of module table entries

extrefsymoff: u32

[−] Expand description

offset to referenced symbol table

nextrefsyms: u32

[−] Expand description

number of referenced symbol table entries

indirectsymoff: u32

[−] Expand description

file offset to the indirect symbol table

nindirectsyms: u32

[−] Expand description

number of indirect symbol table entries

extreloff: u32

[−] Expand description

offset to external relocation entries

nextrel: u32

[−] Expand description

number of external relocation entries

locreloff: u32

[−] Expand description

offset to local relocation entries

nlocrel: u32

[−] Expand description

number of local relocation entries

Implementations

impl DysymtabCommand[−]

pub fn new() -> Self

Trait Implementations

impl Clone for DysymtabCommand[+]

[+] Show hidden undocumented items

fn clone(&self) -> DysymtabCommand[−]

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Copy for DysymtabCommand

impl Debug for DysymtabCommand[+]

[+] Show hidden undocumented items

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

Formats the value using the given formatter.

impl Default for DysymtabCommand[+]

[+] Show hidden undocumented items

fn default() -> Self[−]

Returns the “default value” for a type.

impl FromCtx<Endian, [u8]> for DysymtabCommand[+]

[+] Show hidden undocumented items

fn from_ctx(src: &[u8], ctx: Endian) -> Self

impl<'a> IntoCtx<Endian, [u8]> for &'a DysymtabCommand[+]

[+] Show hidden undocumented items

fn into_ctx(self, dst: &mut [u8], ctx: Endian)

impl IntoCtx<Endian, [u8]> for DysymtabCommand[+]

[+] Show hidden undocumented items

fn into_ctx(self, dst: &mut [u8], ctx: Endian)

impl SizeWith<Endian> for DysymtabCommand[+]

[+] Show hidden undocumented items

fn size_with(ctx: &Endian) -> usize

impl<'a> TryFromCtx<'a, Endian, [u8]> for DysymtabCommand where
    DysymtabCommand: 'a, [+]

[+] Show hidden undocumented items

type Error = Error

fn try_from_ctx(
    src: &'a [u8],
    ctx: Endian
) -> Result<(Self, usize), Self::Error>

impl<'a> TryIntoCtx<Endian, [u8]> for &'a DysymtabCommand[+]

[+] Show hidden undocumented items

type Error = Error

fn try_into_ctx(self, dst: &mut [u8], ctx: Endian) -> Result<usize, Self::Error>

impl TryIntoCtx<Endian, [u8]> for DysymtabCommand[+]

[+] Show hidden undocumented items

type Error = Error

fn try_into_ctx(self, dst: &mut [u8], ctx: Endian) -> Result<usize, Self::Error>