Enum ObjectFormat 

pub enum ObjectFormat {
    Elf,
    MachO,
    Coff,
    Wasm,
}

The container the compiler writes.

One per OS, with freestanding taking its format from the architecture. rucc writes all four itself rather than handing text to an assembler, which is why this is a first class field: every one of them is a different section model, a different relocation table and a different symbol table.

Variants

Elf

ELF. Linux, the BSDs, illumos, and freestanding on every architecture but wasm.

MachO

Mach-O. Darwin, and the format with a version treadmill: chained fixups and __init_offsets are recent and are not optional on current systems.

Coff

COFF, in its PE flavour. Windows, both environments, with unwind information in .pdata and .xdata rather than in a DWARF section.

Wasm

The WebAssembly object format. A different shape from the other three, and spec/cross-compile/05-architectures.md section 5.9 treats reaching it as a second back end.

Implementations

impl ObjectFormat

pub const fn as_str(self) -> &'static str

The name used in diagnostics and in --print-config.

pub const fn object_extension(self) -> &'static str

The suffix an object file gets on this format.

pub const fn archive_extension(self) -> &'static str

The suffix a static archive gets.

pub const fn leading_underscore(self, data_model: DataModel) -> bool

Whether symbols are prefixed with an underscore.

True on Mach-O and on 32-bit COFF, false on ELF and 64-bit COFF. Getting this wrong produces a link error naming a symbol that is visibly present in the object, which is one of the more confusing ways to spend an afternoon.

Trait Implementations

impl Clone for ObjectFormat

fn clone(&self) -> ObjectFormat

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ObjectFormat

impl Debug for ObjectFormat

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

Formats the value using the given formatter.

impl Display for ObjectFormat

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

Formats the value using the given formatter.

impl Eq for ObjectFormat

impl Hash for ObjectFormat

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ObjectFormat

fn cmp(&self, other: &ObjectFormat) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for ObjectFormat

fn eq(&self, other: &ObjectFormat) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for ObjectFormat

fn partial_cmp(&self, other: &ObjectFormat) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for ObjectFormat