ARM: dts: imx6ul: fix definition of MX6UL_PAD_UART5_RX_DATA__ECSPI2_MISO

[karo-tx-linux.git] / Makefile

diff --git a/Makefile b/Makefile
index d5b37391195f80866ad2b831a417039b3ee230cf..6704fdbc2c4a7c8ac44c5abb7799ae68d36aef21 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -342,9 +342,14 @@ include scripts/Kbuild.include
 # Make variables (CC, etc...)
 AS             = $(CROSS_COMPILE)as
 LD             = $(CROSS_COMPILE)ld
+LDFINAL        = $(LD)
 CC             = $(CROSS_COMPILE)gcc
 CPP            = $(CC) -E
+ifdef CONFIG_LTO
+AR             = $(CROSS_COMPILE)gcc-ar
+else
 AR             = $(CROSS_COMPILE)ar
+endif
 NM             = $(CROSS_COMPILE)nm
 STRIP          = $(CROSS_COMPILE)strip
 OBJCOPY                = $(CROSS_COMPILE)objcopy
@@ -406,7 +411,7 @@ KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(S
 
 export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
 export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
-export CPP AR NM STRIP OBJCOPY OBJDUMP
+export CPP AR NM STRIP OBJCOPY OBJDUMP LDFINAL
 export MAKE AWK GENKSYMS INSTALLKERNEL PERL PYTHON UTS_MACHINE
 export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
 
@@ -417,6 +422,17 @@ export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
 export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
 export KBUILD_ARFLAGS
 
+ifdef CONFIG_LTO
+# LTO gcc creates a lot of files in TMPDIR, and with /tmp as tmpfs
+# it's easy to drive the machine OOM. Use the object directory
+# instead.
+ifndef TMPDIR
+TMPDIR ?= $(objtree)
+export TMPDIR
+$(info setting TMPDIR=$(objtree) for LTO build)
+endif
+endif
+
 # 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.
@@ -550,6 +566,7 @@ drivers-y   := drivers/ sound/ firmware/
 net-y          := net/
 libs-y         := lib/
 core-y         := usr/
+virt-y         := virt/
 endif # KBUILD_EXTMOD
 
 ifeq ($(dot-config),1)
@@ -777,6 +794,7 @@ endif
 
 include scripts/Makefile.kasan
 include scripts/Makefile.extrawarn
+include scripts/Makefile.lto
 
 # Add any arch overrides and user supplied CPPFLAGS, AFLAGS and CFLAGS as the
 # last assignments
@@ -882,10 +900,10 @@ core-y            += kernel/ certs/ mm/ fs/ ipc/ security/ crypto/ block/
 
 vmlinux-dirs   := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
                     $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
-                    $(net-y) $(net-m) $(libs-y) $(libs-m)))
+                    $(net-y) $(net-m) $(libs-y) $(libs-m) $(virt-y)))
 
 vmlinux-alldirs        := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \
-                    $(init-) $(core-) $(drivers-) $(net-) $(libs-))))
+                    $(init-) $(core-) $(drivers-) $(net-) $(libs-) $(virt-))))
 
 init-y         := $(patsubst %/, %/built-in.o, $(init-y))
 core-y         := $(patsubst %/, %/built-in.o, $(core-y))
@@ -894,14 +912,15 @@ net-y             := $(patsubst %/, %/built-in.o, $(net-y))
 libs-y1                := $(patsubst %/, %/lib.a, $(libs-y))
 libs-y2                := $(patsubst %/, %/built-in.o, $(libs-y))
 libs-y         := $(libs-y1) $(libs-y2)
+virt-y         := $(patsubst %/, %/built-in.o, $(virt-y))
 
 # Externally visible symbols (used by link-vmlinux.sh)
 export KBUILD_VMLINUX_INIT := $(head-y) $(init-y)
-export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y)
+export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y) $(virt-y)
 export KBUILD_LDS          := arch/$(SRCARCH)/kernel/vmlinux.lds
 export LDFLAGS_vmlinux
 # used by scripts/pacmage/Makefile
-export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt)
+export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools)
 
 vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN)
 
@@ -1075,6 +1094,9 @@ PHONY += kselftest
 kselftest:
        $(Q)$(MAKE) -C tools/testing/selftests run_tests
 
+kselftest-clean:
+       $(Q)$(MAKE) -C tools/testing/selftests clean
+
 # ---------------------------------------------------------------------------
 # Modules
 
@@ -1282,6 +1304,7 @@ help:
        @echo  '  kselftest       - Build and run kernel selftest (run as root)'
        @echo  '                    Build, install, and boot kernel before'
        @echo  '                    running kselftest on it'
+       @echo  '  kselftest-clean - Remove all generated kselftest files'
        @echo  ''
        @echo  'Kernel packaging:'
        @$(MAKE) $(build)=$(package-dir) help
@@ -1336,7 +1359,7 @@ $(help-board-dirs): help-%:
 # Documentation targets
 # ---------------------------------------------------------------------------
 %docs: scripts_basic FORCE
-       $(Q)$(MAKE) $(build)=scripts build_docproc
+       $(Q)$(MAKE) $(build)=scripts build_docproc build_check-lc_ctype
        $(Q)$(MAKE) $(build)=Documentation/DocBook $@
 
 else # KBUILD_EXTMOD