On Thu, Aug 16, 2012 at 04:52:24PM -0300, Arnaldo Carvalho de Melo wrote: > Em Wed, Aug 15, 2012 at 02:56:47PM -0300, Arnaldo Carvalho de Melo escreveu: > > Em Sat, Jul 21, 2012 at 08:22:33PM +0200, Nicolas escreveu: > So the problem is that 'in' is (from the .cpp file): > > static const _Ios_Openmode in = _S_in; > > <2><82>: Abbrev Number: 10 (DW_TAG_member) > <83> DW_AT_name : in > <86> DW_AT_decl_file : 1 > <87> DW_AT_decl_line : 15 > <88> DW_AT_type : <0x9b> > <8c> DW_AT_external : 1 > <8d> DW_AT_declaration : 1 > <8e> DW_AT_const_value : 8 Although I cannot find it said explicitly in the DWARF spec I think you can assume that any member with a const_value (and without a data_member_location) doesn't occupy space. > I need to capture the fact that it is a static const, and investigate > the C++ structure encoding rules, why is that it takes 1 byte when it > has no per instance members? That is by definition in C++, in C it is a GNU extension to allow empty structs. Depending on whether you compile an empty struct with gcc or g++ it will have a size on zero or one. http://gcc.gnu.org/onlinedocs/gcc/Empty-Structures.html Cheers, Mark -- To unsubscribe from this list: send the line "unsubscribe dwarves" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
