backtrace() vs. _Unwind_Backtrace()

David Mosberger davidm@napali.hpl.hp.com
Fri Dec 5 17:28:00 GMT 2003


>>>>> On Fri, 05 Dec 2003 09:13:41 -0800, David Daney <ddaney@avtrex.com> said:

  David.D> The approach for the MIPS port of libgcj is to include a
  David.D> backtrace() replacement that calls _Unwind_Backtrace().
  David.D> This works because backtrace() is a weak symbol in glibc.
  David.D> It sounds like this is essentially what you are suggesting.

  David.D> As I said in the previous message this code is in
  David.D> sysdep/dwarf2-backtrace.cc.

That sounds fine to me, except could you do s/dwarf2/unwind/ or
something like that?  The _Unwind_* interface is not at all tied to
DWARF2 (in fact, it was invented for a non-DWARF2-unwind-info
platform, which is a bit ironic... ;-).

	--david



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