From mboxrd@z Thu Jan 1 00:00:00 1970 From: wcohen@redhat.com (William Cohen) Date: Thu, 21 Jan 2016 22:56:26 -0500 Subject: [PATCH] Eliminate the .eh_frame sections from the aarch64 vmlinux and kernel modules Message-ID: <1453434986-19307-1-git-send-email-wcohen@redhat.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- arch/arm64/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index cd822d8..094a137 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) -- 2.5.0