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Subject: Re: The 'cold' function attribute and GDB
To: gdb-patches@sourceware.org,Kevin Buettner <kevinb@redhat.com>,Simon Marchi <simark@simark.ca>
From: Eli Zaretskii <eliz@gnu.org>
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On May 2, 2019 5:51:13 AM GMT+03:00, Kevin Buettner <kevinb@redhat.com> wro=
te:
> On Wed, 1 May 2019 16:17:04 -0400
> Simon Marchi <simark@simark.ca> wrote:
>=20=20
> > In an ideal world, if gcc generates two separate ranges
> > of instruction for this function (the hot path and the cold path),
> it should describe
> > it as two ranges in the entry for print_vectorlike.  If so, it
> should be described with
> > a DW_AT_ranges attribute.
>=20
> Yes, this is exactly right.


I do see in the DWARF info that print_vectorlike has 2 address ranges: its =
DW_AT_ranges attribute specifies a value which is shown as a list of 2 rang=
es in the "objdump -WR" output.

So where do I go from here?  What to check next?

Thanks.