Handbook
Glossary
VM memory layout constants
Common constants. All the values are given in relation to the bootstrap image being built.
Constants that must match vm/memory.hpp:
card-bits
( -- value )
card-mark
( -- n )
deck-bits
( -- value )
Constants that must match vm/layouts.hpp:
slot-offset
( slot tag -- n )
Offsets to fields in the context struct:
context-callstack-bottom-offset
( -- n )
context-callstack-save-offset
( -- n )
context-callstack-seg-offset
( -- n )
context-datastack-offset
( -- n )
context-callstack-top-offset
( -- n )
context-retainstack-offset
( -- n )
Offsets to field in the segment struct:
segment-end-offset
( -- n )
segment-start-offset
( -- n )
Offsets to fields in the vm struct:
vm-context-offset
( -- n )
vm-fault-flag-offset
( -- n )
vm-signal-handler-addr-offset
( -- n )
vm-spare-context-offset
( -- n )
Offsets to fields in data objects:
alien-offset
( -- n )
array-start-offset
( -- n )
byte-array-offset
( -- n )
callstack-length-offset
( -- n )
callstack-top-offset
( -- n )
float-offset
( -- n )
quot-entry-point-offset
( -- n )
string-offset
( -- n )
tuple-class-offset
( -- n )
word-entry-point-offset
( -- n )
Relocation classes:
rc-absolute-cell
( -- value )
rc-absolute
( -- value )
rc-relative
( -- value )
rc-absolute-ppc-2/2
( -- value )
rc-absolute-ppc-2
( -- value )
rc-relative-ppc-2-pc
( -- value )
rc-relative-ppc-3-pc
( -- value )
rc-absolute-2
( -- value )
rc-absolute-1
( -- value )
rc-absolute-ppc-2/2/2/2
( -- value )
rc-relative-arm64-branch
( -- value )
rc-relative-arm64-bcond
( -- value )
rc-absolute-arm64-movz
( -- value )
rc-relative-cell
( -- value )
Relocation types:
rt-dlsym
( -- value )
rt-entry-point
( -- value )
rt-entry-point-pic
( -- value )
rt-entry-point-pic-tail
( -- value )
rt-here
( -- value )
rt-this
( -- value )
rt-literal
( -- value )
rt-untagged
( -- value )
rt-megamorphic-cache-hits
( -- value )
rt-vm
( -- value )
rt-cards-offset
( -- value )
rt-decks-offset
( -- value )
rt-dlsym-toc
( -- value )
rt-inline-cache-miss
( -- value )
rt-safepoint
( -- value )