On Wed, Dec 11, 2013 at 5:36 AM, Jiri Kosina <jkos...@suse.cz> wrote: > On Mon, 9 Dec 2013, H.J. Lu wrote: > >> >> so that he could load his program compiled as PIE above 4GB. >> >> If kernel is changed not to honor it, his program won't work any more. >> >> In normal case, PIE has zero vaddr and this doesn't apply. >> >> >> > >> > That doesn't seem to be PIE at all, and if it is PIE, then it should be >> > relocatable (I agree btw with randomizing upward from the selected >> > address.) >> >> Kernel can consider PIE with non-zero vaddr isn't real PIE. > > Why? > > I still think PIE with non-zero vaddr should be randomized by putting > random offset to the vaddr. Don't you think so? Why? >
When -Ttext-segment=XXX is used, the program is expected to load at XXX, regardless -pie is used or not. I will change the linker to set type to ET_EXEC in this case so that it will be independent of kernel. -- H.J. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
