On Wed, Nov 19, 2014 at 3:54 PM, H.J. Lu <hjl.to...@gmail.com> wrote: > On Wed, Nov 19, 2014 at 8:38 AM, H.J. Lu <hjl.to...@gmail.com> wrote: >> >> One way to optimize it is to make PLT entry to use the normal GOT >> slot: >> >> jmp *name@GOTPCREL(%rip) >> 8 byte nop >> >> where name@GOTPCREL points to the normal GOT slot >> updated by R_X86_64_GLOB_DAT relocation at run-time. >> Should I give it a try? > > I turned out that we can reuse BND PLT. I implemented it in BFD ld > on hjl/plt.got branch: > > https://sourceware.org/git/?p=binutils-gdb.git;a=shortlog;h=refs/heads/hjl/plt.got > > I tested it on glibc and it works. It should work with all models. Please > give it a try.
I spoke too soon. I found a problem and I will investigate it. -- H.J.
