diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 28 |
1 files changed, 18 insertions, 10 deletions
@@ -316,12 +316,9 @@ SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \ # CROSS_COMPILE can be set on the command line # make CROSS_COMPILE=ia64-linux- # Alternatively CROSS_COMPILE can be set in the environment. -# A third alternative is to store a setting in .config so that plain -# "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 ?= $(SUBARCH) -CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) # Architecture as present in compile.h UTS_MACHINE := $(ARCH) @@ -445,6 +442,8 @@ export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL export KBUILD_ARFLAGS +export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1) + # When compiling out-of-tree modules, put MODVERDIR in the module # tree rather than in the kernel tree. The kernel tree might # even be read-only. @@ -504,12 +503,17 @@ KBUILD_CFLAGS += $(call cc-option,-fno-PIE) KBUILD_AFLAGS += $(call cc-option,-fno-PIE) # check for 'asm goto' -ifeq ($(call shell-cached,$(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y) +ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y) CC_HAVE_ASM_GOTO := 1 KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO KBUILD_AFLAGS += -DCC_HAVE_ASM_GOTO endif +ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/cc-can-link.sh $(CC)), y) + CC_CAN_LINK := y + export CC_CAN_LINK +endif + ifeq ($(config-targets),1) # =========================================================================== # *config targets only - make sure prerequisites are updated, and descend @@ -802,13 +806,12 @@ KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) endif ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION -KBUILD_CFLAGS += $(call cc-option,-ffunction-sections,) -KBUILD_CFLAGS += $(call cc-option,-fdata-sections,) +KBUILD_CFLAGS_KERNEL += $(call cc-option,-ffunction-sections,) +KBUILD_CFLAGS_KERNEL += $(call cc-option,-fdata-sections,) endif # arch Makefile may override CC so keep this after arch Makefile is included -NOSTDINC_FLAGS += -nostdinc -isystem $(call shell-cached,$(CC) -print-file-name=include) -CHECKFLAGS += $(NOSTDINC_FLAGS) +NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) # warn about C99 declaration after statement KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) @@ -878,6 +881,12 @@ ifeq ($(CONFIG_STRIP_ASM_SYMS),y) LDFLAGS_vmlinux += $(call ld-option, -X,) endif +# insure the checker run with the right endianness +CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian) + +# the checker needs the correct machine size +CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32) + # Default kernel image to build when no specific target is given. # KBUILD_IMAGE may be overruled on the command line or # set in the environment @@ -1625,7 +1634,6 @@ clean: $(clean-dirs) -o -name '*.asn1.[ch]' \ -o -name '*.symtypes' -o -name 'modules.order' \ -o -name modules.builtin -o -name '.tmp_*.o.*' \ - -o -name .cache.mk \ -o -name '*.c.[012]*.*' \ -o -name '*.ll' \ -o -name '*.gcno' \) -type f -print | xargs rm -f @@ -1763,7 +1771,7 @@ quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)) # Run depmod only if we have System.map and depmod is executable quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \ - $(KERNELRELEASE) "$(patsubst y,_,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX))" + $(KERNELRELEASE) # Create temporary dir for module support files # clean it up only when building all modules |