On Mon, Dec 9, 2013 at 4:37 PM, H. Peter Anvin <[email protected]> wrote: > On 12/09/2013 03:53 PM, H.J. Lu wrote: >>>> >>>> x86-64 small model is limited to 4GB in size. You can't build >>>> a dynamic executable in small model larger than 4GB. >>>> >>>> There are medium and large models. But they are slower than >>>> small models as well as small models in PIE. Also there are >>>> no glibc run-times for medium and large models. >>>> >>> Compiling for the small PIC model shouldn't automatically mean >>> generating a PIE (ET_DYN) executable, though (and if those are >>> inherently linked, that is a fundamental bug IMNSHO.) >> >> PIE uses PIC. But GCC has -fPIE and -fPIC. They aren't >> the same. You build PIE with >> >> 1. Compile with -fPIE. >> 2. Link with -pie. >> > > I'm talking about the memory model ("small PIC model"). I don't see why > it should be encapsulated in a PIE (ET_DYN) container if the user > doesn't want it to be relocatable. >
I see. Maybe linker can set ET_EXEC if vaddr is non-zero. -- H.J. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
