Modules and debugging in DWARF

Sarath Kodali sarath at dummy.com
Sat Feb 22 10:15:01 PST 2014


On Saturday, 22 February 2014 at 00:30:18 UTC, Iain Buclaw wrote:
> Hi all,
>
[skip]
>
> And currently I'm testing selective imports to be represented 
> as DW_TAG_imported_declaration.  Don't have any examples for 
> yet, but it looks like it would be the imported declaration tag 
> pointing to the real declaration.
>
>
> Regards
> Iain.

Below is dwarf info generated by g++ for selective imports in C++
code.

< 1><0x00000045>    DW_TAG_typedef
                         DW_AT_name                  va_list
                         DW_AT_decl_file             0x00000002
/usr/lib/gcc/i586-suse-linux/4.7/include/stdarg.h
                         DW_AT_decl_line             0x00000066
                         DW_AT_type                  <0x00000029>
< 1><0x00000050>    DW_TAG_namespace
                         DW_AT_name                  std
                         DW_AT_decl_file             0x00000004
/home/sarath/development/dbg/tests/c/<built-in>
                         DW_AT_decl_line             0x00000000
                         DW_AT_sibling               <0x00000079>
< 2><0x0000005b>      DW_TAG_imported_declaration
                           DW_AT_decl_file             0x00000005
/usr/include/c++/4.7/cstdarg
                           DW_AT_decl_line             0x00000038
                           DW_AT_import                <0x00000045>

- Sarath


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