Struct SFrameFRE 

pub struct SFrameFRE {
    pub start_address: SFrameFREStartAddress,
    pub info: SFrameFREInfo,
    pub stack_offsets: Vec<SFrameFREStackOffset>,
}

SFrame FRE

Ref: https://sourceware.org/binutils/docs-2.46/sframe-spec.html#SFrame-Frame-Row-Entries

Fields

start_address: SFrameFREStartAddress

Start address (in offset form) of the function

info: SFrameFREInfo

FRE info

stack_offsets: Vec<SFrameFREStackOffset>

Stack offsets to access CFA, FP and RA

Implementations

impl SFrameFRE

pub fn get_cfa_offset(&self, section: &SFrameSection<'_>) -> Option<i32>

Get CFA offset against base reg (for Default FDE type)

pub fn get_ra_offset(&self, section: &SFrameSection<'_>) -> Option<i32>

Get RA offset against CFA (for Default FDE type)

For s390x, the returned value may represent:

• A stack slot offset if the LSB is 0
• A DWARF register number (encoded as (regnum << 1) | 1) if the LSB is 1
• SFRAME_FRE_RA_OFFSET_INVALID (0) if RA is not saved

pub fn get_fp_offset(&self, section: &SFrameSection<'_>) -> Option<i32>

Get FP offset against CFA (for Default FDE type)

For s390x, the returned value may represent:

• A stack slot offset if the LSB is 0
• A DWARF register number (encoded as (regnum << 1) | 1) if the LSB is 1

pub fn get_flex_recovery_rules(&self) -> Option<SFrameFlexRecoveryRules>

Get Flex FDE recovery rules

For flexible FDE types, returns the recovery rules for CFA, RA, and FP. Each rule consists of a Control Data word and an Offset Data word.

Returns None if the data is invalid.

Trait Implementations

impl Clone for SFrameFRE

fn clone(&self) -> SFrameFRE

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SFrameFRE

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

Formats the value using the given formatter.