On Thu, Sep 3, 2015 at 9:36 PM, Matt Turner <matts...@gmail.com> wrote: > From: Jeremy Huddleston <jerem...@freedesktop.org> > > Cc: "10.6 11.0" <mesa-sta...@lists.freedesktop.org> > Bugzilla: https://bugs.gentoo.org/240956 > --- > After talking with Ian today, we determined that this disables an > optimization. > > And FWIW, NVIDIA's fork of glapi (libglvnd) contains this kind of > writable-text optimization for x86-64. > > configure.ac | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/configure.ac b/configure.ac > index 90ba4fe..259f770 100644 > --- a/configure.ac > +++ b/configure.ac > @@ -1289,6 +1289,16 @@ AC_SUBST(GLX_TLS, ${GLX_USE_TLS}) > AS_IF([test "x$GLX_USE_TLS" = xyes -a "x$ax_pthread_ok" = xyes], > [DEFINES="${DEFINES} -DGLX_USE_TLS"]) > > +dnl Read-only text section on x86 hardened platforms > +AC_ARG_ENABLE([glx-read-only-text], > + [AS_HELP_STRING([--enable-glx-read-only-text], > + [Disable writable .text section on x86 (decreases performance) > @<:@default=disabled@:>@])], > + [enable_glx_read_only_text="$enableval"], > + [enable_glx_read_only_text=no]) > +if test "x$enable_glx_read_only_text" = xyes; then > + DEFINES="$DEFINES -DGLX_X86_READONLY_TEXT" > +fi > + > dnl > dnl More DRI setup > dnl > -- > 2.4.6 >
Planning to push this today. _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
