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text writer working

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adjusted ordering as psoitioning, ie
methods in order of the assemblers of the linker
(not the object space)
This commit is contained in:
Torsten Ruger 2018-07-02 17:05:02 +03:00
parent 4b33d1c056
commit 6af651a886
1 changed files with 13 additions and 14 deletions
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27
lib/risc/text_writer.rb
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@ -3,7 +3,7 @@ module Risc
#
# Binary code is already created by the Machine (by translating risc to arm to binary)
#
# This class serves to write all the objects of the machine (wich also contain the code)
# This class serves to write all the objects of the linker (wich also contain the code)
# into one stream or binary text object. This is then written to an ELF text section.
#
# A word about positions: The c world has a thing called position independent code, and
@ -16,17 +16,18 @@ module Risc
include Util::Logging
log_level :info
def initialize(machine)
@machine = machine
def initialize(linker)
@linker = linker
raise "may not me nil" if linker.nil?
end
# objects must be written in same order as positioned by the machine, namely
# objects must be written in same order as positioned by the linker, namely
# - intial jump
# - all objects
# - all BinaryCode
def write_as_string
@stream = StringIO.new
write_init(@machine.cpu_init)
write_init(@linker.cpu_init)
write_debug
write_objects
write_code
@ -35,7 +36,7 @@ module Risc
end
def sorted_objects
@machine.object_positions.keys.sort do |left , right|
@linker.object_positions.keys.sort do |left , right|
Position.get(left).at <=> Position.get(right).at
end
end
@ -58,11 +59,9 @@ module Risc
# Write the BinaryCode objects of all methods to stream.
# Really like any other object, it's just about the ordering
def write_code
Parfait.object_space.each_type do |type|
type.each_method do |method|
method.each_binary do |code|
write_any(code)
end
@linker.assemblers.each do |asm|
asm.method.each_binary do |code|
write_any(code)
end
end
end
@ -139,7 +138,7 @@ module Risc
def write_return_address( addr )
write_ref_for( addr.get_type )
write_ref_for( addr.next_integer )
write_ref_for( addr.value + @machine.platform.loaded_at )
write_ref_for( addr.value + @linker.platform.loaded_at )
write_ref_for( 0 )
log.debug "Integer witten stream 0x#{@stream.length.to_s(16)}"
end
@ -163,7 +162,7 @@ module Risc
# first jump,
def write_init( cpu_init )
cpu_init.assemble(@stream)
@stream.write_unsigned_int_8(0) until @machine.platform.padding == stream_position
@stream.write_unsigned_int_8(0) until @linker.platform.padding == stream_position
log.debug "Init witten stream 0x#{@stream.length.to_s(16)}"
end
@ -209,7 +208,7 @@ module Risc
when Fixnum
@stream.write_signed_int_32(object)
else
@stream.write_signed_int_32(Position.get(object) + @machine.platform.loaded_at)
@stream.write_signed_int_32(Position.get(object) + @linker.platform.loaded_at)
end
end