1 USING: accessors alien alien.c-types byte-arrays classes.struct
2 combinators io kernel math math.bitwise
3 specialized-arrays.instances.alien.c-types.uchar
4 tools.image-analyzer.gc-info tools.image-analyzer.vm vm words ;
5 IN: tools.image-analyzer.code-heap-reader
8 TUPLE: code-block-t free? owner parameters relocation gc-maps payload ;
10 : word>byte-array ( word -- array )
11 word-code swap code-block heap-size -
12 over <alien> -rot - <direct-uchar-array> >byte-array ;
14 : free? ( code-block -- ? )
17 : size ( code-block -- n )
18 header>> dup 1 mask? [ 7 unmask ] [ 0xfffff8 mask ] if ;
20 : (read-code-block) ( -- code-block payload )
21 code-block [ read-struct ] [ heap-size ] bi over size swap - read ;
23 : >code-block< ( code-block -- free? owner parameters relocation )
24 { [ free? ] [ owner>> ] [ parameters>> ] [ relocation>> ] } cleave ;
26 : read-code-block ( -- code-block )
28 [ >code-block< ] [ [ byte-array>gc-maps ] keep ] bi*