dee3638653
We were rewriting dylib IDs and install names using `MachO::Tools`, which doesn't update the state of the file in memory. This leads to those changes being undone when we call `delete_rpath`. We fix this by making sure the state of the file in memory always matches the state of file on disk. Closes #12832.
134 lines
2.6 KiB
Ruby
134 lines
2.6 KiB
Ruby
# typed: false
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# frozen_string_literal: true
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require "macho"
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# {Pathname} extension for dealing with Mach-O files.
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#
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# @api private
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module MachOShim
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extend Forwardable
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delegate [:dylib_id, :rpaths] => :macho
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def macho
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@macho ||= MachO.open(to_s)
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end
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private :macho
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def mach_data
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@mach_data ||= begin
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machos = []
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mach_data = []
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if MachO::Utils.fat_magic?(macho.magic)
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machos = macho.machos
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else
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machos << macho
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end
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machos.each do |m|
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arch = case m.cputype
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when :x86_64, :i386, :ppc64, :arm64, :arm then m.cputype
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when :ppc then :ppc7400
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else :dunno
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end
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type = case m.filetype
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when :dylib, :bundle then m.filetype
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when :execute then :executable
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else :dunno
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end
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mach_data << { arch: arch, type: type }
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end
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mach_data
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rescue MachO::NotAMachOError
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# Silently ignore errors that indicate the file is not a Mach-O binary ...
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[]
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rescue
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# ... but complain about other (parse) errors for further investigation.
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onoe "Failed to read Mach-O binary: #{self}"
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raise if Homebrew::EnvConfig.developer?
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[]
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end
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end
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private :mach_data
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# TODO: See if the `#write!` call can be delayed until
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# we know we're not making any changes to the rpaths.
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def delete_rpath(rpath, **options)
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macho.delete_rpath(rpath, options)
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macho.write!
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end
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def change_rpath(old, new, **options)
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macho.change_rpath(old, new, options)
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macho.write!
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end
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def change_dylib_id(id, **options)
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macho.change_dylib_id(id, options)
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macho.write!
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end
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def change_install_name(old, new, **options)
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macho.change_install_name(old, new, options)
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macho.write!
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end
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def dynamically_linked_libraries(except: :none)
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lcs = macho.dylib_load_commands.reject { |lc| lc.type == except }
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lcs.map(&:name).map(&:to_s).uniq
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end
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def archs
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mach_data.map { |m| m.fetch :arch }
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end
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def arch
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case archs.length
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when 0 then :dunno
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when 1 then archs.first
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else :universal
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end
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end
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def universal?
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arch == :universal
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end
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def i386?
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arch == :i386
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end
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def x86_64?
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arch == :x86_64
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end
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def ppc7400?
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arch == :ppc7400
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end
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def ppc64?
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arch == :ppc64
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end
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def dylib?
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mach_data.any? { |m| m.fetch(:type) == :dylib }
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end
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def mach_o_executable?
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mach_data.any? { |m| m.fetch(:type) == :executable }
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end
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alias binary_executable? mach_o_executable?
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def mach_o_bundle?
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mach_data.any? { |m| m.fetch(:type) == :bundle }
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end
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end
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