new option --readnever & script gstack?

[Mark Kettenis]

   Date: Mon, 22 Nov 2004 16:41:55 -0500
   From: Andrew Cagney <ac131313@redhat.com>

   Mark Kettenis wrote:

   > It's not really clear what it'd actually do.  If it really won't read
   > in any symbolic debug info, it'll probably be pretty useless.
   > Remember we're relying more and more on DWARF CFI to unwind the stack.

   Symbolic debug information, for dwarf2 is stuff found in .debug_info. 
   CFI and eh-frame are lower level than that.

Well, CFI is normally found in .dwarf_frame, which is at the same
level at .debug_info.  There is also CFI in .eh_frame, but in general
only for C++ code (or code compiled with -fexceptions).  Only on amd64
CFI in .eh_frame is generated by default.

Mark