Struct probe_rs::debug::stack_frame::StackFrame
source · pub struct StackFrame {
pub id: i64,
pub function_name: String,
pub source_location: Option<SourceLocation>,
pub registers: DebugRegisters,
pub pc: RegisterValue,
pub frame_base: Option<u64>,
pub is_inlined: bool,
pub static_variables: Option<VariableCache>,
pub local_variables: Option<VariableCache>,
}
Expand description
A full stack frame with all its information contained.
Fields§
§id: i64
The stackframe ID.
function_name: String
The name of the function this stackframe belongs to.
source_location: Option<SourceLocation>
The source location the function this stackframe belongs to originates.
registers: DebugRegisters
The current register state represented in this stackframe.
pc: RegisterValue
The program counter / address of the current instruction when this stack frame was created
frame_base: Option<u64>
The DWARF debug info defines a DW_AT_frame_base
attribute which can be used to calculate the memory location of variables in a stack frame.
The rustc compiler, has a compile flag, -C force-frame-pointers
, which when set to on
, will usually result in this being a pointer to the register value of the platform frame pointer.
However, some isa’s (e.g. RISCV) uses a default of -C force-frame-pointers off
and will then use the stack pointer as the frame base address.
We store the frame_base of the relevant non-inlined parent function, to ensure correct calculation of the Variable::memory_location
values.
is_inlined: bool
Indicate if this stack frame belongs to an inlined function.
static_variables: Option<VariableCache>
A cache of ‘static’ scoped variables for this stackframe
local_variables: Option<VariableCache>
A cache of ‘local’ scoped variables for this stafckframe, with a Variable
for each in-scope variable.
- Complex variables and pointers will have additional children.
- This structure is recursive until a base type is encountered.
Trait Implementations§
source§impl Debug for StackFrame
impl Debug for StackFrame
Auto Trait Implementations§
impl RefUnwindSafe for StackFrame
impl Send for StackFrame
impl Sync for StackFrame
impl Unpin for StackFrame
impl UnwindSafe for StackFrame
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