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The DWARF Debugging Information Format is of interest to programmers
working on compilers and debuggers (and anyone interested in reading
or writing DWARF information). It was developed by a committee (known
as the PLSIG at the time) starting around 1991. Starting around 1991
SGI got involved with the committee and then developed the libdwarf and
dwarfdump tools for SGI-internal use and as part of SGI IRIX developer
tools. From around 1993 dwarfdump and libdwarf were shipped (as an
executable and archive respectively, not source) with every release
of the SGI MIPS/IRIX C compiler. In 1994 (I think the correct year)
SGI agreed (at my request) to open-source libdwarf (and in 1999 to
open-source dwarfdump) so anyone could use them.