diff options
Diffstat (limited to 'kernel/Makefile')
| -rw-r--r-- | kernel/Makefile | 38 |
1 files changed, 28 insertions, 10 deletions
diff --git a/kernel/Makefile b/kernel/Makefile index d95c4a4c3..a0ecd131c 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -1,6 +1,6 @@ VERSION = 4 PATCHLEVEL = 4 -SUBLEVEL = 6 +SUBLEVEL = 50 EXTRAVERSION = NAME = Blurry Fish Butt @@ -128,6 +128,10 @@ _all: # Cancel implicit rules on top Makefile $(CURDIR)/Makefile Makefile: ; +ifneq ($(words $(subst :, ,$(CURDIR))), 1) + $(error main directory cannot contain spaces nor colons) +endif + ifneq ($(KBUILD_OUTPUT),) # Invoke a second make in the output directory, passing relevant variables # check that the output directory actually exists @@ -364,7 +368,7 @@ AFLAGS_MODULE = LDFLAGS_MODULE = CFLAGS_KERNEL = AFLAGS_KERNEL = -CFLAGS_GCOV = -fprofile-arcs -ftest-coverage +CFLAGS_GCOV = -fprofile-arcs -ftest-coverage -fno-tree-loop-im # Use USERINCLUDE when you must reference the UAPI directories only. @@ -391,11 +395,12 @@ KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ -fno-strict-aliasing -fno-common \ -Werror-implicit-function-declaration \ -Wno-format-security \ - -std=gnu89 + -std=gnu89 $(call cc-option,-fno-PIE) + KBUILD_AFLAGS_KERNEL := KBUILD_CFLAGS_KERNEL := -KBUILD_AFLAGS := -D__ASSEMBLY__ +KBUILD_AFLAGS := -D__ASSEMBLY__ $(call cc-option,-fno-PIE) KBUILD_AFLAGS_MODULE := -DMODULE KBUILD_CFLAGS_MODULE := -DMODULE KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds @@ -495,6 +500,12 @@ ifeq ($(KBUILD_EXTMOD),) endif endif endif +# install and module_install need also be processed one by one +ifneq ($(filter install,$(MAKECMDGOALS)),) + ifneq ($(filter modules_install,$(MAKECMDGOALS)),) + mixed-targets := 1 + endif +endif ifeq ($(mixed-targets),1) # =========================================================================== @@ -606,11 +617,17 @@ ARCH_CFLAGS := include arch/$(SRCARCH)/Makefile KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,) +KBUILD_CFLAGS += $(call cc-disable-warning,maybe-uninitialized,) +KBUILD_CFLAGS += $(call cc-disable-warning,frame-address,) ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE -KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) +KBUILD_CFLAGS += -Os else +ifdef CONFIG_PROFILE_ALL_BRANCHES KBUILD_CFLAGS += -O2 +else +KBUILD_CFLAGS += -O2 +endif endif # Tell gcc to never replace conditional load with a non-conditional one @@ -682,9 +699,10 @@ KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) else -# This warning generated too much noise in a regular build. -# Use make W=1 to enable this warning (see scripts/Makefile.build) +# These warnings generated too much noise in a regular build. +# Use make W=1 to enable them (see scripts/Makefile.build) KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) +KBUILD_CFLAGS += $(call cc-disable-warning, unused-const-variable) endif ifdef CONFIG_FRAME_POINTER @@ -1262,7 +1280,7 @@ help: @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' @echo ' dir/ - Build all files in dir and below' - @echo ' dir/file.[oisS] - Build specified target only' + @echo ' dir/file.[ois] - Build specified target only' @echo ' dir/file.lst - Build specified mixed source/assembly target only' @echo ' (requires a recent binutils and recent build (System.map))' @echo ' dir/file.ko - Build module including final link' @@ -1502,11 +1520,11 @@ image_name: # Clear a bunch of variables before executing the submake tools/: FORCE $(Q)mkdir -p $(objtree)/tools - $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(O) subdir=tools -C $(src)/tools/ + $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(shell cd $(objtree) && /bin/pwd) subdir=tools -C $(src)/tools/ tools/%: FORCE $(Q)mkdir -p $(objtree)/tools - $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(O) subdir=tools -C $(src)/tools/ $* + $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(shell cd $(objtree) && /bin/pwd) subdir=tools -C $(src)/tools/ $* # Single targets # --------------------------------------------------------------------------- |