Michael Eager wrote: > Ian Lance Taylor wrote: >> Michael Eager <ea...@eagercon.com> writes: >> >>> Is there any documentation on the contents of .eh_frame >>> and the augmentations used? IIRC, the data describes the >>> try blocks and the catch handlers, but I'm looking for >>> the gory details. >> >> I don't know of any docs. Docs would be nice. >> >> Here is the comment from gcc/dwarf2out.c: >> >> /* Augmentation: >> z Indicates that a uleb128 is present to size the >> augmentation section. >> L Indicates the encoding (and thus presence) of >> an LSDA pointer in the FDE augmentation. >> R Indicates a non-default pointer encoding for >> FDE code pointers. >> P Indicates the presence of an encoding + language >> personality routine in the CIE augmentation. */ >> >> gcc before 3.0 used a different scheme, which you can probably ignore. >> In that scheme the augmentations were exactly the three bytes "eh\0". > > Thanks. > > I've been asked to write a description for the PowerPC ABI. > I'll reverse-engineer the table unless I can find something > more descriptive than the comments in gcc or gdb. > > Try those in the personality routine, in libsupc++. I think I remember them being a bit more detailed.
Sebastian
