From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Merrill To: Daniel Berlin Cc: Andrew Cagney , Alexandre Oliva , Jim Wilson , , , Subject: Re: C++ ptrmemfun break if FUNCTION_BOUNDARY < 2 * BITS_PER_UNIT Date: Wed, 16 May 2001 04:53:00 -0000 Message-id: References: X-SW-Source: 2001-05/msg00268.html >>>>> "Daniel" == Daniel Berlin writes: > And when it comes to C++ stuf, i refuse to hard code any more stuff, after > just spending months cleaning up the crud from 5 years of doing that. >> Either the v3 ABI would need to specify the exact mechanism that is >> valid for ISA foo (i.e. GDB would would be wired to assume that all MIPS >> use mechanism XYZ) or the debug/object info would need to describe the >> mechanism being used so that GDB could adjust its self accordingly. > It's easiest to do this in debug info. > At least, for dwarf (I dunno how to do the same in stabs). > In the type die of the ptr-to-member die, just add a GCC specific > attribute that says which bit to check for virtuality, and i'll modify > gdb to handle it right (by telling the C++ ABI abstraction layer which > bit to check) So you'll hardcode the two possible representations, and rely on GCC to tell you which one to use? I suppose that's reasonable. I'd rather put any special ABI attributes in the DW_TAG_compilation_unit, to avoid repetition. Jason