[RFC] expected behavior for "bt" command used with "set language ..." ?

Tom Tromey tom@tromey.com
Fri Jan 19 20:09:00 GMT 2018


>>>>> "Xavier" == Xavier Roirand <roirand@adacore.com> writes:

Xavier> When printing one frame arguments, should we do it using the language
Xavier> of the frame, and it may be different for each frame in a single "bt"
Xavier> command or should we leave things as they are, and possibly allow the
Xavier> "bt" command to display weird values for frame arguments or even
Xavier> worse, crash GDB because the user set language manually so he has to
Xavier> know what he's doing ?

I tend to think the answer should be:

* If the language is "auto", then use each frame's language; otherwise
* If the user specified a particular language, use that language for
  everything.

Xavier> This can also probably be done by adding frame language parameter to a
Xavier> lot of language specific functions for each language and finally to
Xavier> value_cast but this second solution requires a huge amount of work.

That would be good to have but I don't think it ought to be tied to this
particular project.  Certainly plenty of other code already just sets
and resets the global.

Tom



More information about the Gdb-patches mailing list