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Re: Specify frame by address
- From: Yao Qi <yao at codesourcery dot com>
- To: Mark Kettenis <mark dot kettenis at xs4all dot nl>
- Cc: jan dot kratochvil at redhat dot com, eliz at gnu dot org, gdb at sourceware dot org
- Date: Wed, 02 Nov 2011 17:13:58 +0800
- Subject: Re: Specify frame by address
- References: <firstname.lastname@example.org> <20111029174638.GA27749@host1.jankratochvil.net> <email@example.com> <201110291843.p9TIhPoK012445@glazunov.sibelius.xs4all.nl> <20111029184808.GA31303@host1.jankratochvil.net> <201110301007.p9UA7LTK032001@glazunov.sibelius.xs4all.nl>
On 10/30/2011 06:07 PM, Mark Kettenis wrote:
>> > If the debug info provides its own unwinder - such as DWARF does - the
>> > architecture does not matter as it gets fully handled by dwarf2-frame.c.
> I know how the code works; I wrote significant parts of it. The
> architecture does matter, since the convention for what stack address
> to use as the CFA depends on the architecture.
could you elaborate the "convention for what stack address to use as the
CFA"? Is this "convention" about "CFA is usually defined by the value
of SP"? and $PORT_dwarf2_frame_init_reg is to define some more or