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. Signed-off-by: David Brown <david.br...@linaro.org> 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 --
