48 lines
1.3 KiB
Ruby
48 lines
1.3 KiB
Ruby
module Asm
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module Arm
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# TODO actually find the closest somehow (DROPPED for now)
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def self.closest_addrtable(as)
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as.objects.find do |obj|
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obj.is_a?(Asm::Arm::AddrTableObject)
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end || (raise Asm::AssemblyError.new('could not find addrtable to use', nil))
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end
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#this has been DROPPED for now (didn't work) and we can do without it
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class AddrTableObject
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def initialize
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@table = []
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@const = []
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end
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# TODO don't create new entry if there's already an entry for the same label/const
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def add_label(label)
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d = [label, Asm::LabelObject.new]
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@table << d
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d[1]
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end
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def add_const(const)
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d = [const, Asm::LabelObject.new]
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@const << d
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d[1]
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end
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def assemble(io, as)
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@table.each do |pair|
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target_label, here_label = *pair
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here_label.assemble io, as
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as.add_relocation io.tell, target_label, Asm::Arm::R_ARM_ABS32,
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Asm::Arm::Instruction::RelocHandler
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io.write_uint32 0
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end
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@const.each do |pair|
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const, here_label = *pair
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here_label.assemble io, as
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io.write_uint32 const
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end
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end
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end
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end
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end |