Displaying variables from namespace with strange DWARF info

Simon Marchi simark@simark.ca
Fri Sep 11 14:49:06 GMT 2020

On 2020-09-08 11:13 a.m., Stas Perepelitsa via Gdb wrote:
> Hi All,
> I've got an ELF file compiled with a proprietary C/C++ compiler, where the
> project contains namespaces.
> I’ve parsed DWARF info and it reveals that variables sitting in namespace
> have their names fully qualified, like AAA::BBB::name.
> Another point, the compilation unit marked as C89 source regardless of C++
> source file taken as input file.
> And there are no attributes ’ DW_AT_namespace’ found in DWARF info.

You mean DW_TAG_namespace?

> (Checked same project with ARM compiler and yes, there are those attributes)
> As a result, the variables from namespaces are neither displayed as
> variables nor as expressions. Is there any chance to teach gdb how to
> process such names?

Yes, it would be by hacking in dwarf2/read.c.  I don't know how easy or difficult
this particular change would be though.


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