This is the mail archive of the gdb@sources.redhat.com mailing list for the GDB project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: Abort backtrace when consecutive zero PCs?


On Wed, Sep 15, 2004 at 01:34:21PM -0400, Andrew Cagney wrote:

Hello,

One backtrace infinite loop case I've noticed (especially on ia64) is where successive frames all have a zero PC.

While we definitly need to allow a backtrace through a single zero PC (for a NULL pointer call - signull.exp) should we make GDB abort when two or more consecutive frames have a zero PC?

(mumble something about a runtime option)

thoughts?


I still think that you

me or we? Do you have a pointer to the thread?


> want to reject zero PC followed by a normal
(non-signal/dummy) frame, for exactly this reason...

That sounds like a NULL pointer function call, which is what signull.exp is all about.


Andrew



Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]