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fix assembly (at least lositions and padding)

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This commit is contained in:
Torsten Ruger 2014-09-06 19:48:56 +03:00
parent 197ecd576e
commit bfa3f28e97
2 changed files with 31 additions and 32 deletions
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2
lib/elf/object_writer.rb
View File

@ -31,7 +31,7 @@ module Elf
end
end
assembler.objects.values.each do |slot|
add_symbol "#{slot.object.class.name}::#{(4*slot.position).to_s(16)}" , slot.position * 4
add_symbol "#{slot.objekt.class.name}::#{(4*slot.position).to_s(16)}" , slot.position * 4
end
end
attr_reader :text

61
lib/register/assembler.rb
View File

@ -4,12 +4,12 @@ module Register
def initialize o
@position = -1
@length = -1
@object = o
@objekt = o
end
attr_reader :object
attr_reader :objekt
attr_accessor :position , :length , :layout
def position
raise "position accessed but not set at #{length} for #{self.object}" if @position == -1
raise "position accessed but not set at #{length} for #{self.objekt}" if @position == -1
@position
end
end
@ -32,13 +32,13 @@ module Register
collect_object(@space)
at = 0
@objects.each do |id , slot|
next unless slot.object.is_a? Virtual::CompiledMethod
next unless slot.objekt.is_a? Virtual::CompiledMethod
slot.position = at
slot.object.set_position at
slot.objekt.set_position at
at += slot.length
end
@objects.each do |id , slot|
next if slot.object.is_a? Virtual::CompiledMethod
next if slot.objekt.is_a? Virtual::CompiledMethod
slot.position = at
at += slot.length
end
@ -48,12 +48,12 @@ module Register
link
@stream = StringIO.new
@objects.each do |id , slot|
next unless slot.object.is_a? Virtual::CompiledMethod
assemble_object( slot.object )
next unless slot.objekt.is_a? Virtual::CompiledMethod
assemble_object( slot )
end
@objects.each do |id , slot|
next if slot.object.is_a? Virtual::CompiledMethod
assemble_object( slot.object )
next if slot.objekt.is_a? Virtual::CompiledMethod
assemble_object( slot )
end
puts "Assembled #{@stream.length.to_s(16)}"
return @stream.string
@ -70,12 +70,11 @@ module Register
slot.length = send("collect_#{clazz}".to_sym , object)
end
def assemble_object object
slot = get_slot(object)
raise "Object not linked #{object_id}=>#{object.class}, #{object.inspect}" unless slot
puts "Assemble #{slot.object.class} at stream #{(@stream.length).to_s(16)} pos:#{(4*slot.position).to_s(16)} , len:#{slot.length}"
raise "Assemble #{slot.object.class} at #{(@stream.length).to_s(16)} #{(4*slot.position).to_s(16)}" if @stream.length != slot.position*4
clazz = object.class.name.split("::").last
def assemble_object slot
obj = slot.objekt
puts "Assemble #{obj.class}(#{obj.object_id}) at stream #{(@stream.length).to_s(16)} pos:#{(4*slot.position).to_s(16)} , len:#{slot.length}"
raise "Assemble #{obj.class} at #{(@stream.length).to_s(16)} #{(4*slot.position).to_s(16)}" if @stream.length != slot.position*4
clazz = obj.class.name.split("::").last
send("assemble_#{clazz}".to_sym , slot)
slot.position
end
@ -84,7 +83,7 @@ module Register
# variables ar values, ie int or refs. For refs the object needs to save the object first
def assemble_self( object , variables )
slot = get_slot(object)
raise "Object not linked #{object.inspect}" unless slot
raise "Object(#{object.object_id}) not linked #{object.inspect}" unless slot
layout = slot.layout
@stream.write_uint32( 0 ) #TODO types
write_ref(layout[:names])
@ -104,7 +103,7 @@ module Register
end
def assemble_Array slot
array = slot.object
array = slot.objekt
layout = slot.layout
@stream.write_uint32( 0 ) #TODO types
write_ref layout[:names] #ref
@ -125,7 +124,7 @@ module Register
def assemble_Hash slot
# so here we can be sure to have _identical_ keys/values arrays
assemble_self( slot.object , [ slot.layout[:keys] , slot.layout[:values] ] )
assemble_self( slot.objekt , [ slot.layout[:keys] , slot.layout[:values] ] )
end
def collect_BootSpace(space)
@ -135,7 +134,7 @@ module Register
end
def assemble_BootSpace(slot)
space = slot.object
space = slot.objekt
assemble_self(space , [space.classes,space.objects] )
end
@ -147,7 +146,7 @@ module Register
end
def assemble_BootClass(slot)
clazz = slot.object
clazz = slot.objekt
assemble_self( clazz , [clazz.name , clazz.super_class_name, clazz.instance_methods] )
end
@ -159,7 +158,7 @@ module Register
def assemble_CompiledMethod(slot)
method = slot.object
method = slot.objekt
@stream.write_uint32( 0 ) #TODO types
write_ref(slot.layout[:names]) #ref of layout
# TODO the assembly may have to move to the object to be more extensible
@ -186,18 +185,18 @@ module Register
end
def assemble_String( slot )
str = slot.object
str = slot.objekt
str = str.string if str.is_a? Virtual::StringConstant
str = str.to_s if str.is_a? Symbol
layout = slot.layout
@stream.write_uint32( 0 ) #TODO types
@stream.write_uint32( assemble_object(layout[:names]) ) #ref
write_ref( slot.layout[:names] ) #ref
@stream.write str
pad = slot.length - 8 - str.length
pad = (slot.length*4) - 8 - str.length
pad.times do
@stream.write_uint8(0)
end
puts "String stream #{@stream.length}"
#puts "String (#{slot.length}) stream #{@stream.length.to_s(16)}"
end
def assemble_Symbol(sym)
@ -214,13 +213,13 @@ module Register
return slot if slot
if(object.is_a? Array)
@objects.each do |k,slot|
next unless slot.object.is_a? Array
if(slot.object.length == object.length)
next unless slot.objekt.is_a? Array
if(slot.objekt.length == object.length)
same = true
slot.object.each_with_index do |v,index|
slot.objekt.each_with_index do |v,index|
same = false unless v == object[index]
end
puts slot.object.first.class if same
puts slot.objekt.first.class if same
return slot if same
end
end
@ -230,7 +229,7 @@ module Register
def write_ref object
slot = get_slot(object)
raise "Object not linked #{object.inspect}" unless slot
raise "Object (#{object.object_id}) not linked #{object.inspect}" unless slot
@stream.write_uint32 slot.position
end