1 ! Tools to follow references in the loaded image.
2 USING: accessors byte-arrays fry kernel layouts math math.bitwise
3 sequences slots.syntax tools.image-analyzer.relocations ;
4 IN: tools.image-analyzer.references
5 QUALIFIED-WITH: tools.image-analyzer.vm vm
8 GENERIC: pointers ( heap heap-node struct -- seq )
10 M: vm:array pointers ( heap heap-node struct -- seq )
13 : find-heap-node ( heap ptr -- node )
14 15 unmask '[ address>> _ = ] find nip ;
16 : load-relocations ( heap code-block -- seq )
17 relocation>> find-heap-node payload>> >byte-array byte-array>relocations
18 [ first 2 = ] filter ;
20 : relocation>pointer ( heap-node relocation -- ptr )
21 over payload>> swap load-relative-value swap address>> + ;
23 : relocation-pointers ( heap heap-node code-block -- seq )
24 swapd load-relocations [ relocation>pointer ] with map ;
26 M: vm:code-block pointers ( heap heap-node struct -- seq )
27 [ relocation-pointers ] [ slots{ owner parameters relocation } ] bi
30 M: vm:word pointers ( heap heap-node struct -- seq )
32 slots{ def name props vocabulary }
33 ] [ entry_point>> 4 cell * - ] bi suffix ;
35 M: object pointers ( heap heap-node struct -- seq )
38 : collect-pointers ( heap heap-node -- seq )
39 dup object>> pointers [ 1 <= ] reject [ 15 unmask ] map ;