[PATCH] D18183: [ELF] - -pie/--pic-executable option implemented
Joerg Sonnenberger via llvm-commits
llvm-commits at lists.llvm.org
Thu Mar 17 23:50:46 PDT 2016
On Thu, Mar 17, 2016 at 04:12:43PM -0700, Rafael Espíndola via llvm-commits wrote:
> On 15 March 2016 at 11:23, Rui Ueyama <ruiu at google.com> wrote:
> > ruiu added inline comments.
> > ================
> > Comment at: ELF/Driver.cpp:150-151
> > @@ +149,4 @@
> > + error("-shared and -pie may not be used together");
> > + if (Config->Static)
> > + error("-static and -pie may not be used together");
> > + }
> > ----------------
> > Why is -pie incompatible with -static?
> It is not fundamentally so. A static program can be self relocating
> and openbsd has static pie binaries.
Yes and no. "Static PIE binary" is a bit of a misnomer. It is
essentially the same as rtld itself -- you use the binary as its own
interpreter and all library references are resolved at link time to
(PIC) library archives.
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