43 lines
1.6 KiB
Factor
43 lines
1.6 KiB
Factor
USING: byte-vectors compiler.codegen.labels compiler.constants cpu.architecture
|
|
help.markup help.syntax make strings ;
|
|
IN: compiler.codegen.relocation
|
|
|
|
HELP: relocation-table
|
|
{ $description "A " { $link byte-vector } " holding the relocations for the current compilation. Each sequence of four bytes in the vector represents one relocation." }
|
|
{ $see-also init-relocation } ;
|
|
|
|
HELP: add-relocation
|
|
{ $values
|
|
{ "class" "a relocation class such as " { $link rc-relative } }
|
|
{ "type" "a relocation type such as " { $link rt-safepoint } }
|
|
}
|
|
{ $description "Adds one relocation to the relocation table." } ;
|
|
|
|
HELP: add-literal
|
|
{ $values { "obj" "a symbol" } }
|
|
{ $description "Adds a symbol to the " { $link literal-table } "." } ;
|
|
|
|
HELP: init-relocation
|
|
{ $description "Initializes the dynamic variables related to code relocation." } ;
|
|
|
|
HELP: rel-safepoint
|
|
{ $values { "class" "a relocation class" } }
|
|
{ $description "Adds a safe point to the " { $link relocation-table } " for the current code offset. This word is used by the " { $link %safepoint } " generator." } ;
|
|
|
|
HELP: compiled-offset
|
|
{ $values { "n" "offset of the code being constructed in the current " { $link make } " sequence." } }
|
|
{ $description "The current compiled code offset. Used for (among other things) calculating jump labels." }
|
|
{ $examples
|
|
{ $example
|
|
"USING: compiler.codegen.relocation cpu.x86.assembler"
|
|
"cpu.x86.assembler.operands kernel layouts make prettyprint ;"
|
|
"[ init-relocation RAX 0 MOV compiled-offset ] B{ } make"
|
|
"cell-bits 64 = ["
|
|
" [ 10 = ] [ B{ 72 184 0 0 0 0 0 0 0 0 } = ] bi*"
|
|
"] ["
|
|
" [ 6 = ] [ B{ 72 184 0 0 0 0 } = ] bi*"
|
|
"] if . ."
|
|
"t\nt"
|
|
}
|
|
} ;
|