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emaste
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svn:date
V 27
2012-12-11T12:58:27.753444Z
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svn:log
V 462
MFC r242943: Do not unwind past a zero PC frame.

  This improves GDB usability when debugging code compiled with
  optimization.

  Upstream GDB revision f0031b6d3ae9b164b3747986ab898190bd4dcf8c (prior
  to GDB's switch to GPLv3), with frame_debug_got_null_frame expanded
  inline.

  | 2004-12-12  Andrew Cagney  <cagney@gnu.org>
  |
  | * frame.c (get_prev_frame): When unwinding normal frames, check
  | that the PC isn't zero.

Sponsored by:	ADARA Networks

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