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[tcf-dev] Debugging tips for symbols
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Hi,
Can someone share some debugging techniques when dealing with symbols ?
What are the important fields ?
From a symbol object, how to understand it and know where it points in
the elf / dwarf sections ?
I'm trying to implement undef support for vxWorks and I'm facing the
following issue:
I'm processing the vxWorks file and try to add an elf_symbol:
add_elf_to_find_symbol_buf(ELF_SymbolInfo * elf_sym)
The elf_sym->value points to my fully linked vxWorks file.
nm vxWorks | grep taskIdCurrent gives me
0x602d7884.
The elf_sym->value is also 0x602d7884. So far, so good.
As far as I understand, it seems the only symbol to be added in the
symbol_buff.
But then my debugger display 0x0602ad820 instead of 0x602d7884.
The routine elf_tcf_symbol "converts" an elf_symbol into a TCF Symbol.
Then from this TCF Symbol, the address is computed again on a GetContext
and probably something goes wrong.
If you can share your debugging techniques, things to pay attention to
and even better a
big picture of how symbol management works, that would help me a lot !
Many Thanks !
Best Regards,
Xavier.
