On Mon, Aug 28, 2017 at 10:13 AM, H.J. Lu <hjl.to...@gmail.com> wrote: > On Mon, Aug 28, 2017 at 9:10 AM, Joseph Myers <jos...@codesourcery.com> wrote: >> On Tue, 8 Aug 2017, H.J. Lu wrote: >> >>> This patch adds -static-pie to GCC driver to create static PIE. A static >>> position independent executable (PIE) is similar to static executable, >>> but can be loaded at any address without a dynamic linker. All linker >>> input files must be compiled with -fpie or -fPIE and linker must support >>> --no-dynamic-linker to avoid linking with dynamic linker. "-z text" is >>> also needed to prevent dynamic relocations in read-only segments. >>> >>> OK for trunk? >> >> I think the documentation for various options needs updating to clarify >> exactly what they mean. (And potentially help text, which for driver >> options is in gcc.c:display_help with the common.opt text being ignored in >> that case.) > > Done. > >> -static is no longer just "prevents linking with the shared libraries" as >> the documentation says, given it's also overriding (explicit or >> configure-time default) -pie. -pie is no longer just "Produce a position >> independent executable", it's producing a *dynamically linked* PIE. > > Done. > >>> +@item -static-pie >>> +@opindex static-pie >>> +Produce a static position independent executable on targets that support >>> +it. A static position independent executable is similar to static >>> +executable, but can be loaded at any address without a dynamic linker. >> >> "to a static executable". >> > > Done. > > Here is the updated patch. OK for trunk? > > Thanks. >
PING. -- H.J.
