DWARF 4 Standard
The DWARF Version 4 Debugging Format Standard is based on the DWARF Version 3 Standard. It is, with only limited exceptions, an upward compatible extension to the previous standard.
The major enhancements in DWARF Version 4 are:
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Add new data compression technique for types
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Add support for new C++ language constructs, including template parameters
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Improve support for VLIW architectures
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Generalize support for packed data structures
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Improve ability to describe optimized code
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Improve support for Fortran, Ada, and other languages
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Improve support for profile-based optimizations
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Improve descriptions of a number of DWARF constructs
The DWARF Version 4 Standard has been superceded by DWARF Version 5.
