def find_objdump(arch)
      [
        which('objdump'),
        which(arch_specific_objdump(arch))
      ].find { |bin| objdump_arch_supported?(bin, arch) }
    end
def find_objdump(arch)
      [
        which('objdump'),
        which(arch_specific_objdump(arch))
      ].find { |bin| objdump_arch_supported?(bin, arch) }
    end
Find objdump that supports architecture +arch+.
 @param [String] arch
 @return [String?]
 @example
   Helper.find_objdump(:amd64)
   #=> '/usr/bin/objdump'
   Helper.find_objdump(:aarch64)
   #=> '/usr/bin/aarch64-linux-gnu-objdump'