c20809526c
The current approach of suppressing all output regardless of what the error is makes it very hard to debug any issues and misread but valid Mach-O files will be silently interpreted as non-Mach-O files instead. Prefer to fail if we are a Homebrew developer or running on the bot (`HOMEBREW_DEVELOPER=1`), so that problems will be noticed and fixed before the silent failure leads to hard-to-diagnose user problems. Closes Homebrew/homebrew#48817. Signed-off-by: Martin Afanasjew <martin@afanasjew.de>
112 lines
2.0 KiB
Ruby
112 lines
2.0 KiB
Ruby
require "vendor/macho/macho"
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require "os/mac/architecture_list"
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module RubyMachO
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# @private
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def macho
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@macho ||= begin
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MachO.open(to_s)
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end
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end
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# @private
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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.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 "CPU_TYPE_I386" then :i386
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when "CPU_TYPE_X86_64" then :x86_64
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when "CPU_TYPE_POWERPC" then :ppc7400
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when "CPU_TYPE_POWERPC64" then :ppc64
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else :dunno
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end
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type = case m.filetype
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when "MH_EXECUTE" then :executable
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when "MH_DYLIB" then :dylib
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when "MH_BUNDLE" then :bundle
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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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if ARGV.homebrew_developer?
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onoe "Failed to read Mach-O binary: #{self}"
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raise
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end
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[]
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end
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end
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def archs
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mach_data.map { |m| m.fetch :arch }.extend(ArchitectureListExtension)
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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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# @private
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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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# @private
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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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# @private
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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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def dynamically_linked_libraries
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macho.linked_dylibs
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end
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def dylib_id
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macho.dylib_id
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end
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end
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