On Wed, 30 Sep 2015, Ulrich Weigand wrote: > - Extend the official DWARF standard in some way
I think you should do this. Note that TS 18661-4 will be coming out very soon, and includes (optional) types * _FloatN, where N is 16, 32, 64 or >= 128 and a multiple of 32; * _DecimalN, where N >= 32 and a multiple of 32; * _Float32x, _Float64x, _Float128x, _Decimal64x, _Decimal128x so this is not simply a matter of supporting a GNU extension (not that it's simply a GNU extension on x86_64 anyway - __float128 is explicitly mentioned in the x86_64 ABI document), but of supporting an ISO C extension, in any case where one of the above types is the same size and radix as float / double / long double but has a different representation. (All the above are distinct types in C, and distinct from float, double, long double even if the representations are the same. But I don't think DWARF needs to distinguish e.g. float and _Float32 other than by their name - it's only the case of different representations that needs distinguishing. The _Float* and _Float*x types have corresponding complex types, but nothing further should be needed in DWARF for those once you can represent _Float*.) -- Joseph S. Myers jos...@codesourcery.com
