On Thu, 14 Jun 2007, iceberg wrote:

Solaris 10, sun studio 11, sometimes I attach my process with dbx and the "where" command 
can only display a few stack with a notification "can't derive frame point".
My program has been compiled and linked with -g option.

But optimized at high levels ?

Without framepointers, stacktracing can fail even if debugging stabs are available. See gcc manual wrt. to '-fomit-frame-pointer', or Sun CC manual wrt. to the notes of '-xO4'.
That seems to be what the debugger complains about.

FrankH.
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