On Wed, Mar 9, 2016 at 1:01 AM, David Brown <david.brown@xxxxxxxxxx> wrote: > On Mon, Mar 07, 2016 at 12:04:27AM +0100, Emese Revfy wrote: > >> This patch allows to build the whole kernel with GCC plugins. It was >> ported from >> grsecurity/PaX. The infrastructure supports building out-of-tree modules >> and >> building in a separate directory. Cross-compilation is supported too but >> currently only the x86 architecture enables plugins. > > > I've tested this with both ARM and ARM64. There are some missing > headers in the arm64 gcc, reported here: > https://bugs.linaro.org/show_bug.cgi?id=2123 (also upstream), but this > should work once that is fixed. > > Feel free to fold these into your patch, or, if you prefer, I can send > out separate patches for them. Ah-ha, great! Thanks for testing! Emese, if you're not interested in carrying this, I can add it to my tree. -Kees > > Signed-off-by: David Brown <david.brown@xxxxxxxxxx> > > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig > index 4f799e5..67ee8e3 100644 > --- a/arch/arm/Kconfig > +++ b/arch/arm/Kconfig > @@ -54,6 +54,7 @@ config ARM > select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL) > select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) > select HAVE_GENERIC_DMA_COHERENT > + select HAVE_GCC_PLUGINS > select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || > CPU_V7)) > select HAVE_IDE if PCI || ISA || PCMCIA > select HAVE_IRQ_TIME_ACCOUNTING > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > index 8cc6228..6d6e4f8 100644 > --- a/arch/arm64/Kconfig > +++ b/arch/arm64/Kconfig > @@ -70,6 +70,7 @@ config ARM64 > select HAVE_FTRACE_MCOUNT_RECORD > select HAVE_FUNCTION_TRACER > select HAVE_FUNCTION_GRAPH_TRACER > + select HAVE_GCC_PLUGINS > select HAVE_GENERIC_DMA_COHERENT > select HAVE_HW_BREAKPOINT if PERF_EVENTS > select HAVE_IRQ_TIME_ACCOUNTING > -- -- Kees Cook Chrome OS & Brillo Security -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
