Type Alias drreg_reserve_info_t 

pub type drreg_reserve_info_t = _drreg_reserve_info_t;

Contains information about a register’s reservation and restoration status.

Aliased Type

#[repr(C)]
pub struct drreg_reserve_info_t {
    pub size: usize,
    pub reserved: i8,
    pub holds_app_value: i8,
    pub app_value_retained: i8,
    pub is_dr_slot: i8,
    pub opnd: opnd_t,
    pub tls_offs: i32,
}

Fields

size: usize

The size of this structure. It must be set by the caller before querying.

reserved: i8

Whether the register is currently reserved.

holds_app_value: i8

Whether the register currently holds the application value.

app_value_retained: i8

Whether the application’s value is stored somewhere (it may not be if the register is dead and \p conservative is not set in \p drreg_options_t).

is_dr_slot: i8

True if the register’s TLS slot is a DR slot (and can thus be accessed by dr_read_saved_reg()) and false if either the slot is inside the dr_raw_tls_calloc() allocation used by drreg or the “slot” is another register.

opnd: opnd_t

An operand that references the location storing the application value. If too many slots are in use and the register is stored in a non-directly-addressable slot, this is set to a null #opnd_t. If the register is being kept in a different register, this will be a register operand holding that location. If \p app_value_retained is false, this is set to a null #opnd_t.

tls_offs: i32

If the register’s application value is not stored in a TLS slot, this is -1. If so, and the slot is a DR slot, this holds the DR slot index; if it is not a DR slot, this holds the offset from the TLS base of the slot assigned to the register.