From 9e6abd2a98ca599e0efb8c46acc17f17dc1a6fe9 Mon Sep 17 00:00:00 2001 From: Josh Triplett Date: Mon, 10 Mar 2014 13:11:26 -0700 Subject: [PATCH] x86, boot: Don't compile aslr.c when !CONFIG_RANDOMIZE_BASE All the code in aslr.c gets compiled out if !CONFIG_RANDOMIZE_BASE, but aslr.o itself still gets compiled in. Eliminate it from the compile entirely in that case. This does not change the generated code at all, in either case. Signed-off-by: Josh Triplett --- arch/x86/boot/compressed/Makefile | 4 +++- arch/x86/boot/compressed/aslr.c | 3 --- 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile index 80709a98cc9c..3b9b00c68fd8 100644 --- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -28,7 +28,9 @@ HOST_EXTRACFLAGS += -I$(srctree)/tools/include vmlinux-objs-y := $(obj)/vmlinux.lds $(obj)/head_$(BITS).o $(obj)/misc.o \ $(obj)/string.o $(obj)/cmdline.o $(obj)/early_serial_console.o \ - $(obj)/piggy.o $(obj)/cpuflags.o $(obj)/aslr.o + $(obj)/piggy.o $(obj)/cpuflags.o + +vmlinux-objs-$(CONFIG_RANDOMIZE_BASE) += $(obj)/aslr.o $(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone diff --git a/arch/x86/boot/compressed/aslr.c b/arch/x86/boot/compressed/aslr.c index fc6091abedb7..913c999b0045 100644 --- a/arch/x86/boot/compressed/aslr.c +++ b/arch/x86/boot/compressed/aslr.c @@ -1,6 +1,5 @@ #include "misc.h" -#ifdef CONFIG_RANDOMIZE_BASE #include #include #include @@ -320,5 +319,3 @@ unsigned char *choose_kernel_location(unsigned char *input, out: return (unsigned char *)choice; } - -#endif /* CONFIG_RANDOMIZE_BASE */ -- 2.20.1