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46acd0075d
Support loading builtin features written in Ruby, which implement with C builtin functions. [Feature #16254] Several features: (1) Load .rb file at boottime with native binary. Now, prelude.rb is loaded at boottime. However, this file is contained into the interpreter as a text format and we need to compile it. This patch contains a feature to load from binary format. (2) __builtin_func() in Ruby call func() written in C. In Ruby file, we can write `__builtin_func()` like method call. However this is not a method call, but special syntax to call a function `func()` written in C. C functions should be defined in a file (same compile unit) which load this .rb file. Functions (`func` in above example) should be defined with (a) 1st parameter: rb_execution_context_t *ec (b) rest parameters (0 to 15). (c) VALUE return type. This is very similar requirements for functions used by rb_define_method(), however `rb_execution_context_t *ec` is new requirement. (3) automatic C code generation from .rb files. tool/mk_builtin_loader.rb creates a C code to load .rb files needed by miniruby and ruby command. This script is run by BASERUBY, so *.rb should be written in BASERUBY compatbile syntax. This script load a .rb file and find all of __builtin_ prefix method calls, and generate a part of C code to export functions. tool/mk_builtin_binary.rb creates a C code which contains binary compiled Ruby files needed by ruby command.
33 lines
679 B
Ruby
33 lines
679 B
Ruby
#
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# make builtin_binary.inc file.
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#
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def dump_bin iseq
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bin = iseq.to_binary
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bin.each_byte.with_index{|b, index|
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print "\n " if (index%20) == 0
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print "0x#{'%02x' % b.ord}, "
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}
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end
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ary = []
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RubyVM::each_builtin{|feature, iseq|
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ary << [feature, iseq]
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}
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$stdout = open('builtin_binary.inc', 'wb')
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ary.each{|feature, iseq|
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puts "static const unsigned char #{feature}_bin[] = {"
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dump_bin(iseq)
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puts "};"
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}
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puts "static const struct builtin_binary builtin_binary[] = {"
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ary.each{|feature, iseq|
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puts " {#{feature.dump}, #{feature}_bin, sizeof(#{feature}_bin)},"
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}
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puts " {NULL}," # dummy sentry
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puts "};"
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puts "#define BUILTIN_BINARY_SIZE #{ary.size}"
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