From: William Cohen Date: Fri, 22 Jan 2016 03:56:26 +0000 (-0500) Subject: Eliminate the .eh_frame sections from the aarch64 vmlinux and kernel modules X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=728dabd6d1751cf5e0f8e0535891393da62396e9;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git Eliminate the .eh_frame sections from the aarch64 vmlinux and kernel modules By default the aarch64 gcc generates .eh_frame sections. Unlike .debug_frame sections, the .eh_frame sections are loaded into memory when the associated code is loaded. On an example kernel being built with this default the .eh_frame section in vmlinux used an extra 1.7MB of memory. The x86 disables the creation of the .eh_frame section. The aarch64 should probably do the same to save some memory. Signed-off-by: William Cohen Signed-off-by: Will Deacon --- diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index cd822d8454c0..094a137f6083 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -27,6 +27,7 @@ $(warning LSE atomics not supported by binutils) endif KBUILD_CFLAGS += -mgeneral-regs-only $(lseinstr) +KBUILD_CFLAGS += -fno-asynchronous-unwind-tables KBUILD_AFLAGS += $(lseinstr) ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)