What are the criteria for including a language in gcc?












0















According to man gcc, gcc supports the following languages, which you can choose from with the -x flag:



c  c-header  cpp-output
c++ c++-header c++-cpp-output
objective-c objective-c-header objective-c-cpp-output
objective-c++ objective-c++-header objective-c++-cpp-output
assembler assembler-with-cpp
ada
f77 f77-cpp-input f95 f95-cpp-input
go
java


What is the criteria for putting a language in gcc? Obviously languages like C and C++ are going to be in gcc, but I was surprised at go and java.



Additionally, the gcc documentation at gnu.org says: "The language-independent component of GCC includes the majority of the optimizers, as well as the “back ends” that generate machine code for various processors." My knowledge on compilers is basic at best, but does this mean that gcc parses and lexes each language into some kind of universal format and then produces some kind of binary from there? If this is the case, would writing a gcc optimizer that is language-independent work for any of those languages, for example both C and go?










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    0















    According to man gcc, gcc supports the following languages, which you can choose from with the -x flag:



    c  c-header  cpp-output
    c++ c++-header c++-cpp-output
    objective-c objective-c-header objective-c-cpp-output
    objective-c++ objective-c++-header objective-c++-cpp-output
    assembler assembler-with-cpp
    ada
    f77 f77-cpp-input f95 f95-cpp-input
    go
    java


    What is the criteria for putting a language in gcc? Obviously languages like C and C++ are going to be in gcc, but I was surprised at go and java.



    Additionally, the gcc documentation at gnu.org says: "The language-independent component of GCC includes the majority of the optimizers, as well as the “back ends” that generate machine code for various processors." My knowledge on compilers is basic at best, but does this mean that gcc parses and lexes each language into some kind of universal format and then produces some kind of binary from there? If this is the case, would writing a gcc optimizer that is language-independent work for any of those languages, for example both C and go?










    share|improve this question







    New contributor




    Nicholas Schmeller is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























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      0








      According to man gcc, gcc supports the following languages, which you can choose from with the -x flag:



      c  c-header  cpp-output
      c++ c++-header c++-cpp-output
      objective-c objective-c-header objective-c-cpp-output
      objective-c++ objective-c++-header objective-c++-cpp-output
      assembler assembler-with-cpp
      ada
      f77 f77-cpp-input f95 f95-cpp-input
      go
      java


      What is the criteria for putting a language in gcc? Obviously languages like C and C++ are going to be in gcc, but I was surprised at go and java.



      Additionally, the gcc documentation at gnu.org says: "The language-independent component of GCC includes the majority of the optimizers, as well as the “back ends” that generate machine code for various processors." My knowledge on compilers is basic at best, but does this mean that gcc parses and lexes each language into some kind of universal format and then produces some kind of binary from there? If this is the case, would writing a gcc optimizer that is language-independent work for any of those languages, for example both C and go?










      share|improve this question







      New contributor




      Nicholas Schmeller is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      According to man gcc, gcc supports the following languages, which you can choose from with the -x flag:



      c  c-header  cpp-output
      c++ c++-header c++-cpp-output
      objective-c objective-c-header objective-c-cpp-output
      objective-c++ objective-c++-header objective-c++-cpp-output
      assembler assembler-with-cpp
      ada
      f77 f77-cpp-input f95 f95-cpp-input
      go
      java


      What is the criteria for putting a language in gcc? Obviously languages like C and C++ are going to be in gcc, but I was surprised at go and java.



      Additionally, the gcc documentation at gnu.org says: "The language-independent component of GCC includes the majority of the optimizers, as well as the “back ends” that generate machine code for various processors." My knowledge on compilers is basic at best, but does this mean that gcc parses and lexes each language into some kind of universal format and then produces some kind of binary from there? If this is the case, would writing a gcc optimizer that is language-independent work for any of those languages, for example both C and go?







      gcc compiler






      share|improve this question







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      Nicholas Schmeller is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question







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      Check out our Code of Conduct.









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      share|improve this question






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      asked 1 hour ago









      Nicholas SchmellerNicholas Schmeller

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      New contributor





      Nicholas Schmeller is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






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