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Re: [RFC/RFA?] Should break FILE:LINENO skip prologue?
- From: Andreas Schwab <schwab at suse dot de>
- To: "Ulrich Weigand" <uweigand at de dot ibm dot com>
- Cc: eliz at gnu dot org, brobecker at adacore dot com (Joel Brobecker), msnyder at specifix dot com, mark dot kettenis at xs4all dot nl, gdb-patches at sourceware dot org
- Date: Wed, 16 Jan 2008 00:23:45 +0100
- Subject: Re: [RFC/RFA?] Should break FILE:LINENO skip prologue?
- References: <200801152140.m0FLeMha003566@d12av02.megacenter.de.ibm.com>
"Ulrich Weigand" <uweigand@de.ibm.com> writes:
> The set of valid expressions varies with the language, but none of
> them support any string of the form FILENAME:FUNCTION as expression.
> However, for *some* languages (e.g. C, but not Ada), a function name
> happens to be a valid expression that evaluates to the address of
> that function. It is only due to that "accident" that
> break *FUNCTION
> does indeed set a breakpoint at the address of FUNCTION (assuming
> the current language is C).
Note that the value of FUNCTION is even target dependent. On ppc64
ordinary function symbols point to function descriptors, whereas code
addresses have symbols that start with a '.'.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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