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127 lines
2.3 KiB
Ruby
Executable file
127 lines
2.3 KiB
Ruby
Executable file
#!/usr/bin/env ruby
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require "common.rb"
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# Generate string -> offset lookup tables for each executable.
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def load_string_lookups(exe_files)
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string_lookups = []
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CONFIGS.each_with_index do |config, i|
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strings = find_strings(exe_files[i], config)
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string_lookups.push(strings)
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end
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string_lookups
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end
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# Load list of "good" strings.
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def load_good_strings(filename)
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File.readlines(filename).map do |string|
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JSON::load("["+ string.chomp + "]")[0]
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end
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end
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# Look up a string's offset, removing it from the specified lookup table.
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# This is done because a string can appear multiple times at different offsets.
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def lookup_string(lookup_table, string)
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lookup_table.each_with_index do |entry, i|
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if entry[1] == string
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lookup_table.delete_at(i)
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return entry[0]
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end
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end
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nil
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end
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# Find offsets for the specified string.
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def get_string_offsets(string, string_lookups)
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string_lookups.map do |lookup|
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offset = lookup_string(lookup, string)
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if offset != nil
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offset
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else
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0
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end
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end
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end
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def format_offsets(offsets)
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formatted_offsets = offsets.map do |offset|
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sprintf("%5i", offset)
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end
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"{ " + formatted_offsets.join(", ") + " }"
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end
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# Print strings left over in the specified lookup table
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# that were not in the good strings list.
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def print_unsupported_strings(name, strings)
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unsupported_offsets = strings.map do |entry|
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entry[0]
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end
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puts "static int #{name}[] ="
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puts "{"
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numbers = 0
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for offset in unsupported_offsets.sort + [ -1 ]
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if numbers == 0
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print " "
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else
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print " "
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end
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printf "%5i,", offset
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numbers += 1
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if numbers >= 8
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print "\n"
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numbers = 0
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end
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end
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if numbers > 0
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print "\n"
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end
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puts "};"
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puts
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end
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string_lookups = load_string_lookups(ARGV)
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good_strings = load_good_strings("good-strings.txt")
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# Output list of supported strings with their offset for each version
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puts "static hhe_string_t strings[] ="
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puts "{"
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for string in good_strings
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offsets = get_string_offsets(string, string_lookups)
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print " { " + format_offsets(offsets) + ", "
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# print "\n "
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print string.to_json + " },\n"
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end
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puts "};"
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puts
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# Output strings that appear in HHE but are not supported (ie. in good_strings)
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CONFIGS.each_with_index do |config, i|
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name = "unsupported_strings_#{config::SUFFIX}"
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print_unsupported_strings(name, string_lookups[i])
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end
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