Minutes, Dwarf 2 Meeting - January 11, 2000
991108.11 Fortran90 arrays
May not be an issue. Loc Expressions can be used to describe
dynamic or ragged Fortran arrays. Bevin will describe usage
of Loc Exprs.
991108.12 Fortran90 allocatable arrays
Use the Stride attribute of the Subrange type. Bevin will
describe this usage.
991204.1 Line operator clarification
Common practice is not clear. Compilers may generate minimum
instruction length of one, which makes this problem disappear.
Editorial. Suggested changes to 6.2.4 (4) to indicate that
some (but not all) statement program opcodes multiply their
operand by the minimum instruction length. Op descriptions
should contain explicit references to multiplying operand by
minimum instruction length.
Bevin Brett has converted the Dwarf 2 spec from troff to HTML.
He indicated that this is a "work in progress" and is not complete.
Mike Eager raised the issue that it is difficult to compare this
version with the previous version to see what changes were made,
many of the features of page-oriented documents like page number
and headings are missing, and that many of the links do not seem
to work. Bevin suggested that paper was the medium of the past
and that HTML was the medium of the future. Jim Dehnert said that
he would produce a PDF version of the HTML document and post it for
Please do not raise new issues in email which discusses a different
issue, since it has a high probability of being overlooked.
Are there any existing implementation of assembler operands which
support creating Dwarf 2 values (e.g., LEB 128 values) or DIEs?
Current compilers generate LEB and other values as numeric values
(using .word or equivalent) instead of depending on the assembler.
Is it useful to have different abbreviation tables for C and C++?
Generally no, most compilers provide a single abbrev table for both.
It is possible to have different abbreviation tables included from
a library depending on whether C or C++ is being compiled.
There are a number of issues which do not have proposals and most
proposals have been discussed and addressed. If there are proposals
to be discussed, we will meet on Jan 25.