On Thu, Feb 17, 2011 at 7:22 AM, Jan Hubicka <hubi...@ucw.cz> wrote: >> On Thu, Feb 17, 2011 at 08:35:26AM +0000, Jan Beulich wrote: >> > >>> On 16.02.11 at 21:04, "H. Peter Anvin" <h...@zytor.com> wrote: >> > > On 02/16/2011 11:22 AM, H.J. Lu wrote: >> > >> Hi, >> > >> >> > >> I updated x32 psABI draft to version 0.2 to change x32 library path >> > >> from lib32 to libx32 since lib32 is used for ia32 libraries on Debian, >> > >> Ubuntu and other derivative distributions. The new x32 psABI is >> > >> available from: >> > >> >> > >> https://sites.google.com/site/x32abi/home >> > >> >> > > >> > > I'm wondering if we should define a section header flag (sh_flags) >> > > and/or an ELF header flag (e_flags) for x32 for the people unhappy about >> > > keying it to the ELF class... >> > >> > Thanks for supporting this! >> > >> > Besides that I also wonder why all the 64-bit relocations get >> > marked as LP64-only. It is clear that some of them can be useful >> > in ILP32 as well, and there's no reason to preclude future uses >> > even if currently no-one can imagine any. >> > >> > Furthermore, it seems questionable to continue to require rela >> > relocations when for all normal ones (leaving aside the 8- and 16- >> > bit ones) the addend can fit in the relocated field. >> >> REL is horrible pain, we shouldn't ever add new REL targets. > > According to Mozilla folks however REL+RELA scheme used by EABI leads > to significandly smaller libxul.so size > > According to http://glandium.org/blog/?p=1177 the difference is about 4-5MB > (out of approximately 20-30MB shared lib)
This is orthogonal to x32 psABI. -- H.J.
