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Re: [PATCH] x86 CFI extensions

>>> Mark Kettenis <> 18.09.05 00:31:44 >>>
>> Date: Sat, 17 Sep 2005 16:59:39 -0400
>> From: Daniel Jacobowitz <>
>> > 2005-09-13  Jan Beulich  <>
>> > 
>> > 	* amd64-tdep.h (AMD64_FCTRL_REGNUM, AMD64_FSTAT_REGNUM,
>> > 	AMD64_MXCSR_REGNUM): New.
>> > 	* amd64-tdep.c (amd64_dwarf_regmap): Add eflags, selector regs,
>> > 	mxcsr, fp control and status words.
>> > 	* i386-tdep.c (): Add selector regs, mxcsr, fp control and
>> > status
>> > 	words.
>> Mark, did you want to take a look at this?  It seems fine to me.
>Sorry, slipped through.  Thanks for reminding me Daniel!
>Jan, what's the status new DWARF register numbers?  At least the
>ones look very Linux-specific to me.  They're not listed in the AMD64
>ABI (at least not version 0.95), and AFAICT gcc won't produce them

In addition to Daniel's reply: while gcc will probably never care about
them (and thus never produce them), the gas now can (patch went in last
week), and while initially this indeed is for Linux, any OS should want
them for describing exception and interrupt frames...


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