On 03/09/2016 11:26 AM, Frank Ch. Eigler wrote:
Hi -
On Wed, Mar 09, 2016 at 11:20:38AM -0800, Michael Eager wrote:
[...]
Variable definitions describe where the variable is defined.
If the size of the variable is different from the size of
the container, it should be described as such.
This has nothing to do with location lists.
... except to the extent that the same variable may have different
containers, so representation base-types, at different code locations?
When a variable (say an 8-bit char) is loaded into a 32-bit
register, the location list can represent that the *value* can
now be found in that register. That does not mean that the
allocation for the variable has changed, nor does DWARF
create multiple descriptions for a variable which may (at
certain times in it's lifetime) be loaded into a register.
Location lists and variable declarations are orthogonal.
Adrian's DWARF excerpt was for a variable declaration;
most of the discussion has been about location lists.
--
Michael Eager ea...@eagercon.com
1960 Park Blvd., Palo Alto, CA 94306 650-325-8077
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