diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 23 |
1 files changed, 23 insertions, 0 deletions
@@ -252,7 +252,18 @@ SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \ # "make" in the configured kernel build directory always uses that. # Default value for CROSS_COMPILE is not to prefix executables # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile +ARCH ?= arm64 ARCH ?= $(SUBARCH) +ifeq ($(ARCH),arm64) +ifneq ($(wildcard $(srctree)/../prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9),) +CROSS_COMPILE ?= $(srctree)/../prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9/bin/aarch64-linux-android- +endif +endif +ifeq ($(ARCH),arm) +ifneq ($(wildcard $(srctree)/../prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.9),) +CROSS_COMPILE ?= $(srctree)/../prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.9/bin/arm-linux-androidkernel- +endif +endif CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) # Architecture as present in compile.h @@ -361,6 +372,12 @@ PERL = perl PYTHON = python CHECK = sparse +# Use the wrapper for the compiler. This wrapper scans for new +# warnings and causes the build to stop upon encountering them. +ifneq ($(wildcard $(srctree)/scripts/gcc-wrapper.py),) +CC = $(srctree)/scripts/gcc-wrapper.py $(CROSS_COMPILE)gcc +endif + CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ -Wbitwise -Wno-return-void $(CF) CFLAGS_MODULE = @@ -641,6 +658,11 @@ KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0) ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y) KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO KBUILD_AFLAGS += -DCC_HAVE_ASM_GOTO +else ifneq ($(findstring aarch64-linux-android, $(CROSS_COMPILE)),) +# It seems than android gcc can't pass gcc-goto.sh check, but asm goto work. +# So let's active it. + KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO + KBUILD_AFLAGS += -DCC_HAVE_ASM_GOTO endif ifdef CONFIG_READABLE_ASM @@ -1473,6 +1495,7 @@ scripts: ; endif # KBUILD_EXTMOD clean: $(clean-dirs) + $(Q)rm -f kernel.img resource.img $(call cmd,rmdirs) $(call cmd,rmfiles) @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ |