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Re: Request for clarification - call frame instruction DW_CFA_remember_state
- To: Lee Smith <Lee dot Smith at arm dot com>
- Subject: Re: Request for clarification - call frame instruction DW_CFA_remember_state
- From: Jason Merrill <jason at redhat dot com>
- Date: 28 Feb 2001 13:40:53 +0000
- Cc: dwarf2 at corp dot sgi dot com
- References: <3.0.32.20010228124336.00e50b90@mail1.bateman.arm.com>
- Reply-To: Jason Merrill <jason at redhat dot com>
>>>>> "Lee" == Lee Smith <Lee.Smith@arm.com> writes:
> Hi,
> I would very much appreciate an answer to the following.
> In section 6.4.2 Call Frame Instructions, Draft 5DW,
> November 30, 2000 states:
> Re 13. DW_CFA_remember_state
> The DW_CFA_remember_state instruction takes no arguments.
> The required action is to push the set of rules for every
> _register_....
> It is unclear from section 6.4.1 "Structure of Call Frame
> Information" whether or not CFA is intended to be a register
> for this purpose.
I've assumed that DW_CFA_remember_state pushes the entire unwind info
state, including the CFA rule, but that could certainly be clarified.
Jason