[tools] Enable symbolic debugging with -maout-symtab compiler option #1519
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Combined with compiler enhancement in tkchia/gcc-ia16#133, allows using
-maout-symtaboption to include program symbol table in ELKS binary without having to runelf2elksseparately. This will soon allow for automatic symbolic debugging and tracing to be used in every ELKS executable desired.Adds weak symbol support to symbol tables.
Adds optional program tracing to
basicfor sample display (usebasic --ftraceafter modifying elkscmd/basic/Makefile).Running symbolic kernel disassembly by running
cd elkscmd/debug; make, then./disasm -k 2d0:0in ELKS.Screenshot of
basicshowing symbolic function tracing and stack usage (timing info coming shortly):Symbolic disassembly of running ELKS kernel using
./disasm -k 2d0:0#512 | more:Function call backtrace using
elkscmd/debug/testsymdemonstration executable:Will require updated toolchain with new commit number, coming shortly.