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Kbuild updates for v5.3 

- remove headers_{install,check}_all targets
 
 - remove unreasonable 'depends on !UML' from CONFIG_SAMPLES
 
 - re-implement 'make headers_install' more cleanly
 
 - add new header-test-y syntax to compile-test headers
 
 - compile-test exported headers to ensure they are compilable in
   user-space
 
 - compile-test headers under include/ to ensure they are self-contained
 
 - remove -Waggregate-return, -Wno-uninitialized, -Wno-unused-value flags
 
 - add -Werror=unknown-warning-option for Clang
 
 - add 128-bit built-in types support to genksyms
 
 - fix missed rebuild of modules.builtin
 
 - propagate 'No space left on device' error in fixdep to Make
 
 - allow Clang to use its integrated assembler
 
 - improve some coccinelle scripts
 
 - add a new flag KBUILD_ABS_SRCTREE to request Kbuild to use absolute
   path for $(srctree).
 
 - do not ignore errors when compression utility is missing
 
 - misc cleanups
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Merge tag 'kbuild-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - remove headers_{install,check}_all targets

 - remove unreasonable 'depends on !UML' from CONFIG_SAMPLES

 - re-implement 'make headers_install' more cleanly

 - add new header-test-y syntax to compile-test headers

 - compile-test exported headers to ensure they are compilable in
   user-space

 - compile-test headers under include/ to ensure they are self-contained

 - remove -Waggregate-return, -Wno-uninitialized, -Wno-unused-value
   flags

 - add -Werror=unknown-warning-option for Clang

 - add 128-bit built-in types support to genksyms

 - fix missed rebuild of modules.builtin

 - propagate 'No space left on device' error in fixdep to Make

 - allow Clang to use its integrated assembler

 - improve some coccinelle scripts

 - add a new flag KBUILD_ABS_SRCTREE to request Kbuild to use absolute
   path for $(srctree).

 - do not ignore errors when compression utility is missing

 - misc cleanups

* tag 'kbuild-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (49 commits)
  kbuild: use -- separater intead of $(filter-out ...) for cc-cross-prefix
  kbuild: Inform user to pass ARCH= for make mrproper
  kbuild: fix compression errors getting ignored
  kbuild: add a flag to force absolute path for srctree
  kbuild: replace KBUILD_SRCTREE with boolean building_out_of_srctree
  kbuild: remove src and obj from the top Makefile
  scripts/tags.sh: remove unused environment variables from comments
  scripts/tags.sh: drop SUBARCH support for ARM
  kbuild: compile-test kernel headers to ensure they are self-contained
  kheaders: include only headers into kheaders_data.tar.xz
  kheaders: remove meaningless -R option of 'ls'
  kbuild: support header-test-pattern-y
  kbuild: do not create wrappers for header-test-y
  kbuild: compile-test exported headers to ensure they are self-contained
  init/Kconfig: add CONFIG_CC_CAN_LINK
  kallsyms: exclude kasan local symbols on s390
  kbuild: add more hints about SUBDIRS replacement
  coccinelle: api/stream_open: treat all wait_.*() calls as blocking
  coccinelle: put_device: Add a cast to an expression for an assignment
  coccinelle: put_device: Adjust a message construction
  ...
alistair/sunxi64-5.4-dsi
Linus Torvalds 2019-07-12 16:03:16 -07:00
parent 5f26f11436 d4a74bbfee
commit 39ceda5ce1
53 changed files with 1811 additions and 464 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
Documentation/kbuild/headers_install.rst
View File

@ -40,12 +40,5 @@ INSTALL_HDR_PATH indicates where to install the headers. It defaults to
An 'include' directory is automatically created inside INSTALL_HDR_PATH and
headers are installed in 'INSTALL_HDR_PATH/include'.
The command "make headers_install_all" exports headers for all architectures
simultaneously. (This is mostly of interest to distribution maintainers,
who create an architecture-independent tarball from the resulting include
directory.) You also can use HDR_ARCH_LIST to specify list of architectures.
Remember to provide the appropriate linux/asm directory via "mv" or "ln -s"
before building a C library with headers exported this way.
The kernel header export infrastructure is maintained by David Woodhouse
<dwmw2@infradead.org>.

9
Documentation/kbuild/kbuild.rst
View File

@ -200,6 +200,15 @@ The output directory is often set using "O=..." on the commandline.
The value can be overridden in which case the default value is ignored.
KBUILD_ABS_SRCTREE
--------------------------------------------------
Kbuild uses a relative path to point to the tree when possible. For instance,
when building in the source tree, the source tree path is '.'
Setting this flag requests Kbuild to use absolute path to the source tree.
There are some useful cases to do so, like when generating tag files with
absolute path entries etc.
KBUILD_SIGN_PIN
---------------
This variable allows a passphrase or PIN to be passed to the sign-file

22
Documentation/kbuild/makefiles.rst
View File

@ -999,11 +999,7 @@ When kbuild executes, the following steps are followed (roughly):
------------------------------------
The archheaders: rule is used to generate header files that
may be installed into user space by "make header_install" or
"make headers_install_all". In order to support
"make headers_install_all", this target has to be able to run
on an unconfigured tree, or a tree configured for another
architecture.
may be installed into user space by "make header_install".
It is run before "make archprepare" when run on the
architecture itself.
@ -1140,6 +1136,22 @@ When kbuild executes, the following steps are followed (roughly):
In this example, extra-y is used to list object files that
shall be built, but shall not be linked as part of built-in.a.
header-test-y
header-test-y specifies headers (*.h) in the current directory that
should be compile tested to ensure they are self-contained,
i.e. compilable as standalone units. If CONFIG_HEADER_TEST is enabled,
this builds them as part of extra-y.
header-test-pattern-y
This works as a weaker version of header-test-y, and accepts wildcard
patterns. The typical usage is:
header-test-pattern-y += *.h
This specifies all the files that matches to '*.h' in the current
directory, but the files in 'header-test-' are excluded.
6.7 Commands useful for building a boot image
---------------------------------------------

117
Makefile
View File

@ -212,6 +212,13 @@ endif
ifdef SUBDIRS
$(warning ================= WARNING ================)
$(warning 'SUBDIRS' will be removed after Linux 5.3)
$(warning )
$(warning If you are building an individual subdirectory)
$(warning in the kernel tree, you can do like this:)
$(warning $$ make path/to/dir/you/want/to/build/)
$(warning (Do not forget the trailing slash))
$(warning )
$(warning If you are building an external module,)
$(warning Please use 'M=' or 'KBUILD_EXTMOD' instead)
$(warning ==========================================)
KBUILD_EXTMOD ?= $(SUBDIRS)
@ -221,9 +228,12 @@ ifeq ("$(origin M)", "command line")
KBUILD_EXTMOD := $(M)
endif
export KBUILD_CHECKSRC KBUILD_EXTMOD
ifeq ($(abs_srctree),$(abs_objtree))
# building in the source tree
srctree := .
building_out_of_srctree :=
else
ifeq ($(abs_srctree)/,$(dir $(abs_objtree)))
# building in a subdirectory of the source tree
@ -231,22 +241,17 @@ else
else
srctree := $(abs_srctree)
endif
# TODO:
# KBUILD_SRC is only used to distinguish in-tree/out-of-tree build.
# Replace it with $(srctree) or something.
KBUILD_SRC := $(abs_srctree)
building_out_of_srctree := 1
endif
export KBUILD_CHECKSRC KBUILD_EXTMOD KBUILD_SRC
ifneq ($(KBUILD_ABS_SRCTREE),)
srctree := $(abs_srctree)
endif
objtree := .
src := $(srctree)
obj := $(objtree)
VPATH := $(srctree)
export srctree objtree VPATH
export building_out_of_srctree srctree objtree VPATH
# To make sure we do not include .config for any of the *config targets
# catch them early, and hand them over to scripts/kconfig/Makefile
@ -262,7 +267,7 @@ old_version_h := include/linux/version.h
clean-targets := %clean mrproper cleandocs
no-dot-config-targets := $(clean-targets) \
cscope gtags TAGS tags help% %docs check% coccicheck \
$(version_h) headers_% archheaders archscripts \
$(version_h) headers headers_% archheaders archscripts \
%asm-generic kernelversion %src-pkg
no-sync-config-targets := $(no-dot-config-targets) install %install \
kernelrelease
@ -449,7 +454,7 @@ USERINCLUDE := \
LINUXINCLUDE := \
-I$(srctree)/arch/$(SRCARCH)/include \
-I$(objtree)/arch/$(SRCARCH)/include/generated \
$(if $(filter .,$(srctree)),,-I$(srctree)/include) \
$(if $(building_out_of_srctree),-I$(srctree)/include) \
-I$(objtree)/include \
$(USERINCLUDE)
@ -510,7 +515,7 @@ PHONY += outputmakefile
# At the same time when output Makefile generated, generate .gitignore to
# ignore whole output directory
outputmakefile:
ifneq ($(srctree),.)
ifdef building_out_of_srctree
$(Q)ln -fsn $(srctree) source
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree)
$(Q)test -e .gitignore || \
@ -527,7 +532,10 @@ endif
ifneq ($(GCC_TOOLCHAIN),)
CLANG_FLAGS += --gcc-toolchain=$(GCC_TOOLCHAIN)
endif
ifeq ($(shell $(AS) --version 2>&1 | head -n 1 | grep clang),)
CLANG_FLAGS += -no-integrated-as
endif
CLANG_FLAGS += -Werror=unknown-warning-option
KBUILD_CFLAGS += $(CLANG_FLAGS)
KBUILD_AFLAGS += $(CLANG_FLAGS)
export CLANG_FLAGS
@ -608,6 +616,7 @@ ifeq ($(KBUILD_EXTMOD),)
init-y := init/
drivers-y := drivers/ sound/
drivers-$(CONFIG_SAMPLES) += samples/
drivers-$(CONFIG_KERNEL_HEADER_TEST) += include/
net-y := net/
libs-y := lib/
core-y := usr/
@ -1053,9 +1062,6 @@ vmlinux: scripts/link-vmlinux.sh autoksyms_recursive $(vmlinux-deps) FORCE
targets := vmlinux
# Some samples need headers_install.
samples: headers_install
# The actual objects are generated when descending,
# make sure no implicit rule kicks in
$(sort $(vmlinux-deps)): $(vmlinux-dirs) ;
@ -1096,12 +1102,12 @@ PHONY += prepare archprepare prepare1 prepare3
# and if so do:
# 1) Check that make has not been executed in the kernel src $(srctree)
prepare3: include/config/kernel.release
ifneq ($(srctree),.)
ifdef building_out_of_srctree
@$(kecho) ' Using $(srctree) as source for kernel'
$(Q)if [ -f $(srctree)/.config -o \
-d $(srctree)/include/config -o \
-d $(srctree)/arch/$(SRCARCH)/include/generated ]; then \
echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
echo >&2 " $(srctree) is not clean, please run 'make ARCH=$(ARCH) mrproper'"; \
echo >&2 " in the '$(srctree)' directory.";\
/bin/false; \
fi;
@ -1181,39 +1187,44 @@ headerdep:
#Default location for installed headers
export INSTALL_HDR_PATH = $(objtree)/usr
# If we do an all arch process set dst to include/arch-$(SRCARCH)
hdr-dst = $(if $(KBUILD_HEADERS), dst=include/arch-$(SRCARCH), dst=include)
quiet_cmd_headers_install = INSTALL $(INSTALL_HDR_PATH)/include
cmd_headers_install = \
mkdir -p $(INSTALL_HDR_PATH); \
rsync -mrl --include='*/' --include='*\.h' --exclude='*' \
usr/include $(INSTALL_HDR_PATH)
PHONY += headers_install
headers_install: headers
$(call cmd,headers_install)
PHONY += archheaders archscripts
PHONY += __headers
__headers: $(version_h) scripts_basic uapi-asm-generic archheaders archscripts
$(Q)$(MAKE) $(build)=scripts build_unifdef
hdr-inst := -f $(srctree)/scripts/Makefile.headersinst obj
PHONY += headers_install_all
headers_install_all:
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install
PHONY += headers_install
headers_install: __headers
PHONY += headers
headers: $(version_h) scripts_unifdef uapi-asm-generic archheaders archscripts
$(if $(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/Kbuild),, \
$(error Headers not exportable for the $(SRCARCH) architecture))
$(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include
$(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi $(hdr-dst)
PHONY += headers_check_all
headers_check_all: headers_install_all
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check
$(Q)$(MAKE) $(hdr-inst)=include/uapi
$(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi
PHONY += headers_check
headers_check: headers_install
$(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include HDRCHECK=1
$(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi $(hdr-dst) HDRCHECK=1
headers_check: headers
$(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
$(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi HDRCHECK=1
ifdef CONFIG_HEADERS_INSTALL
prepare: headers
endif
ifdef CONFIG_HEADERS_CHECK
all: headers_check
endif
PHONY += scripts_unifdef
scripts_unifdef: scripts_basic
$(Q)$(MAKE) $(build)=scripts scripts/unifdef
# ---------------------------------------------------------------------------
# Kernel selftest
@ -1283,18 +1294,24 @@ all: modules
# using awk while concatenating to the final file.
PHONY += modules
modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin
$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
modules: $(if $(KBUILD_BUILTIN),vmlinux) modules.order modules.builtin
@$(kecho) ' Building modules, stage 2.';
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/modules-check.sh
modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)
$(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin
modules.order: $(vmlinux-dirs)
$(Q)$(AWK) '!x[$$0]++' $(addsuffix /$@, $(vmlinux-dirs)) > $@
%/modules.builtin: include/config/auto.conf include/config/tristate.conf
$(Q)$(MAKE) $(modbuiltin)=$*
modbuiltin-dirs := $(addprefix _modbuiltin_, $(vmlinux-dirs))
modules.builtin: $(modbuiltin-dirs)
$(Q)$(AWK) '!x[$$0]++' $(addsuffix /$@, $(vmlinux-dirs)) > $@
PHONY += $(modbuiltin-dirs)
# tristate.conf is not included from this Makefile. Add it as a prerequisite
# here to make it self-healing in case somebody accidentally removes it.
$(modbuiltin-dirs): include/config/tristate.conf
$(Q)$(MAKE) $(modbuiltin)=$(patsubst _modbuiltin_%,%,$@)
# Target to prepare building external modules
PHONY += modules_prepare
@ -1360,7 +1377,7 @@ CLEAN_DIRS += $(MODVERDIR) include/ksym
CLEAN_FILES += modules.builtin.modinfo
# Directories & files removed with 'make mrproper'
MRPROPER_DIRS += include/config usr/include include/generated \
MRPROPER_DIRS += include/config include/generated \
arch/$(SRCARCH)/include/generated .tmp_objdiff
MRPROPER_FILES += .config .config.old .version \
Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
@ -1551,7 +1568,7 @@ $(DOC_TARGETS): scripts_basic FORCE
# ---------------------------------------------------------------------------
PHONY += scripts_gdb
scripts_gdb: prepare
scripts_gdb: prepare0
$(Q)$(MAKE) $(build)=scripts/gdb
$(Q)ln -fsn $(abspath $(srctree)/scripts/gdb/vmlinux-gdb.py)
@ -1698,7 +1715,7 @@ CHECKSTACK_ARCH := $(ARCH)
endif
checkstack:
$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
$(PERL) $(srctree)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
kernelrelease:
@echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
@ -1717,11 +1734,11 @@ endif
tools/: FORCE
$(Q)mkdir -p $(objtree)/tools
$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(src)/tools/
$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(srctree)/tools/
tools/%: FORCE
$(Q)mkdir -p $(objtree)/tools
$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(src)/tools/ $*
$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(srctree)/tools/ $*
# Single targets
# ---------------------------------------------------------------------------
@ -1755,8 +1772,6 @@ build-dir = $(patsubst %/,%,$(dir $(build-target)))
PHONY += /
/: ./
# Make sure the latest headers are built for Documentation
Documentation/ samples/: headers_install
%/: prepare FORCE
$(Q)$(MAKE) KBUILD_MODULES=1 $(build)=$(build-dir)

2
arch/arc/Makefile
View File

@ -19,7 +19,7 @@ ifdef CONFIG_ARC_CURR_IN_REG
# any kernel headers, and missing the r25 global register
# Can't do unconditionally because of recursive include issues
# due to <linux/thread_info.h>
LINUXINCLUDE += -include ${src}/arch/arc/include/asm/current.h
LINUXINCLUDE += -include $(srctree)/arch/arc/include/asm/current.h
endif
cflags-y += -fsection-anchors

1
arch/arc/configs/tb10x_defconfig
View File

@ -94,6 +94,7 @@ CONFIG_CONFIGFS_FS=y
CONFIG_DEBUG_INFO=y
CONFIG_STRIP_ASM_SYMS=y
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_INSTALL=y
CONFIG_HEADERS_CHECK=y
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_MAGIC_SYSRQ=y

1
arch/nds32/configs/defconfig
View File

@ -92,6 +92,7 @@ CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_INFO_DWARF4=y
CONFIG_GDB_SCRIPTS=y
CONFIG_READABLE_ASM=y
CONFIG_HEADERS_INSTALL=y
CONFIG_HEADERS_CHECK=y
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_MAGIC_SYSRQ=y

12
arch/parisc/Makefile
View File

@ -120,8 +120,8 @@ PALO := $(shell if (which palo 2>&1); then : ; \
elif [ -x /sbin/palo ]; then echo /sbin/palo; \
fi)
PALOCONF := $(shell if [ -f $(src)/palo.conf ]; then echo $(src)/palo.conf; \
else echo $(obj)/palo.conf; \
PALOCONF := $(shell if [ -f $(srctree)/palo.conf ]; then echo $(srctree)/palo.conf; \
else echo $(objtree)/palo.conf; \
fi)
palo lifimage: vmlinuz
@ -131,8 +131,8 @@ palo lifimage: vmlinuz
false; \
fi
@if test ! -f "$(PALOCONF)"; then \
cp $(src)/arch/parisc/defpalo.conf $(obj)/palo.conf; \
echo 'A generic palo config file ($(obj)/palo.conf) has been created for you.'; \
cp $(srctree)/arch/parisc/defpalo.conf $(objtree)/palo.conf; \
echo 'A generic palo config file ($(objree)/palo.conf) has been created for you.'; \
echo 'You should check it and re-run "make palo".'; \
echo 'WARNING: the "lifimage" file is now placed in this directory by default!'; \
false; \
@ -162,10 +162,10 @@ vmlinuz: vmlinux
endif
install:
$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
$(CONFIG_SHELL) $(srctree)/arch/parisc/install.sh \
$(KERNELRELEASE) vmlinux System.map "$(INSTALL_PATH)"
zinstall:
$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
$(CONFIG_SHELL) $(srctree)/arch/parisc/install.sh \
$(KERNELRELEASE) vmlinuz System.map "$(INSTALL_PATH)"
CLEAN_FILES += lifimage

1
arch/parisc/configs/a500_defconfig
View File

@ -166,6 +166,7 @@ CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_UTF8=m
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_INSTALL=y
CONFIG_HEADERS_CHECK=y
CONFIG_MAGIC_SYSRQ=y
# CONFIG_DEBUG_BUGVERBOSE is not set

1
arch/parisc/configs/b180_defconfig
View File

@ -90,6 +90,7 @@ CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_UTF8=m
CONFIG_HEADERS_INSTALL=y
CONFIG_HEADERS_CHECK=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y

1
arch/parisc/configs/c3000_defconfig
View File

@ -139,6 +139,7 @@ CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_UTF8=m
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_INSTALL=y
CONFIG_HEADERS_CHECK=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_MUTEXES=y

1
arch/parisc/configs/default_defconfig
View File

@ -183,6 +183,7 @@ CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=y
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_INSTALL=y
CONFIG_HEADERS_CHECK=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y

1
arch/powerpc/configs/ppc6xx_defconfig
View File

@ -1123,6 +1123,7 @@ CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_DEBUG_INFO=y
CONFIG_UNUSED_SYMBOLS=y
CONFIG_HEADERS_INSTALL=y
CONFIG_HEADERS_CHECK=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y

1
arch/s390/configs/debug_defconfig
View File

@ -588,6 +588,7 @@ CONFIG_GDB_SCRIPTS=y
CONFIG_FRAME_WARN=1024
CONFIG_READABLE_ASM=y
CONFIG_UNUSED_SYMBOLS=y
CONFIG_HEADERS_INSTALL=y
CONFIG_HEADERS_CHECK=y
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_MAGIC_SYSRQ=y

2
arch/um/Makefile
View File

@ -73,7 +73,7 @@ KBUILD_AFLAGS += $(ARCH_INCLUDE)
USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -I%,,$(KBUILD_CFLAGS))) \
$(ARCH_INCLUDE) $(MODE_INCLUDE) $(filter -I%,$(CFLAGS)) \
-D_FILE_OFFSET_BITS=64 -idirafter $(srctree)/include \
-idirafter $(obj)/include -D__KERNEL__ -D__UM_HOST__
-idirafter $(objtree)/include -D__KERNEL__ -D__UM_HOST__
#This will adjust *FLAGS accordingly to the platform.
include $(ARCH_DIR)/Makefile-os-$(OS)

1
drivers/gpu/drm/i915/.gitignore vendored
View File

@ -1 +0,0 @@
header_test_*.c

12
drivers/gpu/drm/i915/Makefile.header-test
View File

@ -2,7 +2,7 @@
# Copyright © 2019 Intel Corporation
# Test the headers are compilable as standalone units
header_test := \
header-test-$(CONFIG_DRM_I915_WERROR) := \
i915_active_types.h \
i915_gem_context_types.h \
i915_priolist_types.h \
@ -35,13 +35,3 @@ header_test := \
intel_sprite.h \
intel_tv.h \
intel_workarounds_types.h
quiet_cmd_header_test = HDRTEST $@
cmd_header_test = echo "\#include \"$(<F)\"" > $@
header_test_%.c: %.h
$(call cmd,header_test)
i915-$(CONFIG_DRM_I915_WERROR) += $(foreach h,$(header_test),$(patsubst %.h,header_test_%.o,$(h)))
clean-files += $(foreach h,$(header_test),$(patsubst %.h,header_test_%.c,$(h)))

1270
include/Kbuild 100644
View File

File diff suppressed because it is too large Load Diff

6
include/uapi/linux/Kbuild → include/uapi/Kbuild
View File

@ -1,14 +1,14 @@
# SPDX-License-Identifier: GPL-2.0
ifeq ($(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/a.out.h),)
no-export-headers += a.out.h
no-export-headers += linux/a.out.h
endif
ifeq ($(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/kvm.h),)
no-export-headers += kvm.h
no-export-headers += linux/kvm.h
endif
ifeq ($(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/kvm_para.h),)
ifeq ($(wildcard $(objtree)/arch/$(SRCARCH)/include/generated/uapi/asm/kvm_para.h),)
no-export-headers += kvm_para.h
no-export-headers += linux/kvm_para.h
endif
endif

33
init/Kconfig
View File

@ -24,6 +24,9 @@ config CLANG_VERSION
int
default $(shell,$(srctree)/scripts/clang-version.sh $(CC))
config CC_CAN_LINK
def_bool $(success,$(srctree)/scripts/cc-can-link.sh $(CC))
config CC_HAS_ASM_GOTO
def_bool $(success,$(srctree)/scripts/gcc-goto.sh $(CC))
@ -96,6 +99,36 @@ config COMPILE_TEST
here. If you are a user/distributor, say N here to exclude useless
drivers to be distributed.
config HEADER_TEST
bool "Compile test headers that should be standalone compilable"
help
Compile test headers listed in header-test-y target to ensure they are
self-contained, i.e. compilable as standalone units.
If you are a developer or tester and want to ensure the requested
headers are self-contained, say Y here. Otherwise, choose N.
config KERNEL_HEADER_TEST
bool "Compile test kernel headers"
depends on HEADER_TEST
help
Headers in include/ are used to build external moduls.
Compile test them to ensure they are self-contained, i.e.
compilable as standalone units.
If you are a developer or tester and want to ensure the headers
in include/ are self-contained, say Y here. Otherwise, choose N.
config UAPI_HEADER_TEST
bool "Compile test UAPI headers"
depends on HEADER_TEST && HEADERS_INSTALL && CC_CAN_LINK
help
Compile test headers exported to user-space to ensure they are
self-contained, i.e. compilable as standalone units.
If you are a developer or tester and want to ensure the exported
headers are self-contained, say Y here. Otherwise, choose N.
config LOCALVERSION
string "Local version - append to kernel release"
help

51
kernel/gen_kheaders.sh
View File

@ -4,24 +4,12 @@
# This script generates an archive consisting of kernel headers
# for CONFIG_IKHEADERS.
set -e
spath="$(dirname "$(readlink -f "$0")")"
kroot="$spath/.."
sfile="$(readlink -f "$0")"
outdir="$(pwd)"
tarfile=$1
cpio_dir=$outdir/$tarfile.tmp
# Script filename relative to the kernel source root
# We add it to the archive because it is small and any changes
# to this script will also cause a rebuild of the archive.
sfile="$(realpath --relative-to $kroot "$(readlink -f "$0")")"
src_file_list="
include/
arch/$SRCARCH/include/
$sfile
"
obj_file_list="
dir_list="
include/
arch/$SRCARCH/include/
"
@ -33,33 +21,29 @@ arch/$SRCARCH/include/
# Uncomment it for debugging.
# if [ ! -f /tmp/iter ]; then iter=1; echo 1 > /tmp/iter;
# else iter=$(($(cat /tmp/iter) + 1)); echo $iter > /tmp/iter; fi
# find $src_file_list -type f | xargs ls -lR > /tmp/src-ls-$iter
# find $obj_file_list -type f | xargs ls -lR > /tmp/obj-ls-$iter
# find $src_file_list -name "*.h" | xargs ls -l > /tmp/src-ls-$iter
# find $obj_file_list -name "*.h" | xargs ls -l > /tmp/obj-ls-$iter
# include/generated/compile.h is ignored because it is touched even when none
# of the source files changed. This causes pointless regeneration, so let us
# ignore them for md5 calculation.
pushd $kroot > /dev/null
src_files_md5="$(find $src_file_list -type f |
pushd $srctree > /dev/null
src_files_md5="$(find $dir_list -name "*.h" |
grep -v "include/generated/compile.h" |
grep -v "include/generated/autoconf.h" |
grep -v "include/config/auto.conf" |
grep -v "include/config/auto.conf.cmd" |
grep -v "include/config/tristate.conf" |
xargs ls -lR | md5sum | cut -d ' ' -f1)"
xargs ls -l | md5sum | cut -d ' ' -f1)"
popd > /dev/null
obj_files_md5="$(find $obj_file_list -type f |
obj_files_md5="$(find $dir_list -name "*.h" |
grep -v "include/generated/compile.h" |
grep -v "include/generated/autoconf.h" |
grep -v "include/config/auto.conf" |
grep -v "include/config/auto.conf.cmd" |
grep -v "include/config/tristate.conf" |
xargs ls -lR | md5sum | cut -d ' ' -f1)"
xargs ls -l | md5sum | cut -d ' ' -f1)"
# Any changes to this script will also cause a rebuild of the archive.
this_file_md5="$(ls -l $sfile | md5sum | cut -d ' ' -f1)"
if [ -f $tarfile ]; then tarfile_md5="$(md5sum $tarfile | cut -d ' ' -f1)"; fi
if [ -f kernel/kheaders.md5 ] &&
[ "$(cat kernel/kheaders.md5|head -1)" == "$src_files_md5" ] &&
[ "$(cat kernel/kheaders.md5|head -2|tail -1)" == "$obj_files_md5" ] &&
[ "$(cat kernel/kheaders.md5|head -3|tail -1)" == "$this_file_md5" ] &&
[ "$(cat kernel/kheaders.md5|tail -1)" == "$tarfile_md5" ]; then
exit
fi
@ -71,16 +55,16 @@ fi
rm -rf $cpio_dir
mkdir $cpio_dir
pushd $kroot > /dev/null
for f in $src_file_list;
do find "$f" ! -name "*.cmd" ! -name ".*";
pushd $srctree > /dev/null
for f in $dir_list;
do find "$f" -name "*.h";
done | cpio --quiet -pd $cpio_dir
popd > /dev/null
# The second CPIO can complain if files already exist which can
# happen with out of tree builds. Just silence CPIO for now.
for f in $obj_file_list;
do find "$f" ! -name "*.cmd" ! -name ".*";
for f in $dir_list;
do find "$f" -name "*.h";
done | cpio --quiet -pd $cpio_dir >/dev/null 2>&1
# Remove comments except SDPX lines
@ -91,6 +75,7 @@ tar -Jcf $tarfile -C $cpio_dir/ . > /dev/null
echo "$src_files_md5" > kernel/kheaders.md5
echo "$obj_files_md5" >> kernel/kheaders.md5
echo "$this_file_md5" >> kernel/kheaders.md5
echo "$(md5sum $tarfile | cut -d ' ' -f1)" >> kernel/kheaders.md5
rm -rf $cpio_dir

25
lib/Kconfig.debug
View File

@ -305,19 +305,26 @@ config DEBUG_FS
If unsure, say N.
config HEADERS_CHECK
bool "Run 'make headers_check' when building vmlinux"
config HEADERS_INSTALL
bool "Install uapi headers to usr/include"
depends on !UML
help
This option will extract the user-visible kernel headers whenever
building the kernel, and will run basic sanity checks on them to
ensure that exported files do not attempt to include files which
were not exported, etc.
This option will install uapi headers (headers exported to user-space)
into the usr/include directory for use during the kernel build.
This is unneeded for building the kernel itself, but needed for some
user-space program samples. It is also needed by some features such
as uapi header sanity checks.
config HEADERS_CHECK
bool "Run sanity checks on uapi headers when building 'all'"
depends on HEADERS_INSTALL
help
This option will run basic sanity checks on uapi headers when
building the 'all' target, for example, ensure that they do not
attempt to include files which were not exported, etc.
If you're making modifications to header files which are
relevant for userspace, say 'Y', and check the headers
exported to $(INSTALL_HDR_PATH) (usually 'usr/include' in
your build tree), to make sure they're suitable.
relevant for userspace, say 'Y'.
config OPTIMIZE_INLINING
bool "Allow compiler to uninline functions marked 'inline'"

98
lib/raid6/Makefile
View File

@ -12,9 +12,6 @@ raid6_pq-$(CONFIG_S390) += s390vx8.o recov_s390xc.o
hostprogs-y += mktables
quiet_cmd_unroll = UNROLL $@
cmd_unroll = $(AWK) -f$(srctree)/$(src)/unroll.awk -vN=$(UNROLL) < $< > $@
ifeq ($(CONFIG_ALTIVEC),y)
altivec_flags := -maltivec $(call cc-option,-mabi=altivec)
@ -26,7 +23,6 @@ CFLAGS_REMOVE_altivec1.o += -msoft-float
CFLAGS_REMOVE_altivec2.o += -msoft-float
CFLAGS_REMOVE_altivec4.o += -msoft-float
CFLAGS_REMOVE_altivec8.o += -msoft-float
CFLAGS_REMOVE_altivec8.o += -msoft-float
CFLAGS_REMOVE_vpermxor1.o += -msoft-float
CFLAGS_REMOVE_vpermxor2.o += -msoft-float
CFLAGS_REMOVE_vpermxor4.o += -msoft-float
@ -51,111 +47,39 @@ CFLAGS_REMOVE_neon8.o += -mgeneral-regs-only
endif
endif
targets += int1.c
$(obj)/int1.c: UNROLL := 1
$(obj)/int1.c: $(src)/int.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
quiet_cmd_unroll = UNROLL $@
cmd_unroll = $(AWK) -f$(srctree)/$(src)/unroll.awk -vN=$* < $< > $@
targets += int2.c
$(obj)/int2.c: UNROLL := 2
$(obj)/int2.c: $(src)/int.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
targets += int4.c
$(obj)/int4.c: UNROLL := 4
$(obj)/int4.c: $(src)/int.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
targets += int8.c
$(obj)/int8.c: UNROLL := 8
$(obj)/int8.c: $(src)/int.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
targets += int16.c
$(obj)/int16.c: UNROLL := 16
$(obj)/int16.c: $(src)/int.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
targets += int32.c
$(obj)/int32.c: UNROLL := 32
$(obj)/int32.c: $(src)/int.uc $(src)/unroll.awk FORCE
targets += int1.c int2.c int4.c int8.c int16.c int32.c
$(obj)/int%.c: $(src)/int.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_altivec1.o += $(altivec_flags)
targets += altivec1.c
$(obj)/altivec1.c: UNROLL := 1
$(obj)/altivec1.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_altivec2.o += $(altivec_flags)
targets += altivec2.c
$(obj)/altivec2.c: UNROLL := 2
$(obj)/altivec2.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_altivec4.o += $(altivec_flags)
targets += altivec4.c
$(obj)/altivec4.c: UNROLL := 4
$(obj)/altivec4.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_altivec8.o += $(altivec_flags)
targets += altivec8.c
$(obj)/altivec8.c: UNROLL := 8
$(obj)/altivec8.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
targets += altivec1.c altivec2.c altivec4.c altivec8.c
$(obj)/altivec%.c: $(src)/altivec.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_vpermxor1.o += $(altivec_flags)
targets += vpermxor1.c
$(obj)/vpermxor1.c: UNROLL := 1
$(obj)/vpermxor1.c: $(src)/vpermxor.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_vpermxor2.o += $(altivec_flags)
targets += vpermxor2.c
$(obj)/vpermxor2.c: UNROLL := 2
$(obj)/vpermxor2.c: $(src)/vpermxor.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_vpermxor4.o += $(altivec_flags)
targets += vpermxor4.c
$(obj)/vpermxor4.c: UNROLL := 4
$(obj)/vpermxor4.c: $(src)/vpermxor.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_vpermxor8.o += $(altivec_flags)
targets += vpermxor8.c
$(obj)/vpermxor8.c: UNROLL := 8
$(obj)/vpermxor8.c: $(src)/vpermxor.uc $(src)/unroll.awk FORCE
targets += vpermxor1.o vpermxor2.o vpermxor4.o vpermxor8.o
$(obj)/vpermxor%.c: $(src)/vpermxor.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_neon1.o += $(NEON_FLAGS)
targets += neon1.c
$(obj)/neon1.c: UNROLL := 1
$(obj)/neon1.c: $(src)/neon.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_neon2.o += $(NEON_FLAGS)
targets += neon2.c
$(obj)/neon2.c: UNROLL := 2
$(obj)/neon2.c: $(src)/neon.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_neon4.o += $(NEON_FLAGS)
targets += neon4.c
$(obj)/neon4.c: UNROLL := 4
$(obj)/neon4.c: $(src)/neon.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
CFLAGS_neon8.o += $(NEON_FLAGS)
targets += neon8.c
$(obj)/neon8.c: UNROLL := 8
$(obj)/neon8.c: $(src)/neon.uc $(src)/unroll.awk FORCE
targets += neon1.c neon2.c neon4.c neon8.c
$(obj)/neon%.c: $(src)/neon.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
targets += s390vx8.c
$(obj)/s390vx8.c: UNROLL := 8
$(obj)/s390vx8.c: $(src)/s390vx.uc $(src)/unroll.awk FORCE
$(obj)/s390vx%.c: $(src)/s390vx.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
quiet_cmd_mktable = TABLE $@

2
net/bpfilter/Kconfig
View File

@ -9,7 +9,7 @@ menuconfig BPFILTER
if BPFILTER
config BPFILTER_UMH
tristate "bpfilter kernel module with user mode helper"
depends on $(success,$(srctree)/scripts/cc-can-link.sh $(CC))
depends on CC_CAN_LINK
default m
help
This builds bpfilter kernel module with embedded user mode helper

14
samples/Kconfig
View File

@ -1,7 +1,6 @@
# SPDX-License-Identifier: GPL-2.0-only
menuconfig SAMPLES
bool "Sample kernel code"
depends on !UML
help
You can build and test sample kernel code here.
@ -95,16 +94,24 @@ config SAMPLE_CONFIGFS
config SAMPLE_CONNECTOR
tristate "Build connector sample -- loadable modules only"
depends on CONNECTOR && m
depends on CONNECTOR && HEADERS_INSTALL && m
help
When enabled, this builds both a sample kernel module for
the connector interface and a user space tool to communicate
with it.
See also Documentation/connector/connector.txt
config SAMPLE_HIDRAW
bool "hidraw sample"
depends on HEADERS_INSTALL
config SAMPLE_PIDFD
bool "pidfd sample"
depends on HEADERS_INSTALL
config SAMPLE_SECCOMP
bool "Build seccomp sample code"
depends on SECCOMP_FILTER
depends on SECCOMP_FILTER && HEADERS_INSTALL
help
Build samples of seccomp filters using various methods of
BPF filter construction.
@ -156,6 +163,7 @@ config SAMPLE_ANDROID_BINDERFS
config SAMPLE_VFS
bool "Build example programs that use new VFS system calls"
depends on HEADERS_INSTALL
help
Build example userspace programs that use new VFS system calls such
as mount API and statx(). Note that this is restricted to the x86

4
samples/Makefile
View File

@ -4,14 +4,14 @@
obj-$(CONFIG_SAMPLE_ANDROID_BINDERFS) += binderfs/
obj-$(CONFIG_SAMPLE_CONFIGFS) += configfs/
obj-$(CONFIG_SAMPLE_CONNECTOR) += connector/
subdir-y += hidraw
subdir-$(CONFIG_SAMPLE_HIDRAW) += hidraw
obj-$(CONFIG_SAMPLE_HW_BREAKPOINT) += hw_breakpoint/
obj-$(CONFIG_SAMPLE_KDB) += kdb/
obj-$(CONFIG_SAMPLE_KFIFO) += kfifo/
obj-$(CONFIG_SAMPLE_KOBJECT) += kobject/
obj-$(CONFIG_SAMPLE_KPROBES) += kprobes/
obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch/
subdir-y += pidfd
subdir-$(CONFIG_SAMPLE_PIDFD) += pidfd
obj-$(CONFIG_SAMPLE_QMI_CLIENT) += qmi/
obj-$(CONFIG_SAMPLE_RPMSG_CLIENT) += rpmsg/
subdir-$(CONFIG_SAMPLE_SECCOMP) += seccomp

28
scripts/Kbuild.include
View File

@ -79,8 +79,8 @@ endef
# would try to directly execute the shell builtin 'command'. This workaround
# should be kept for a long time since this issue was fixed only after the
# GNU Make 4.2.1 release.
cc-cross-prefix = $(firstword $(foreach c, $(filter-out -%, $(1)), \
$(if $(shell command -v $(c)gcc 2>/dev/null), $(c))))
cc-cross-prefix = $(firstword $(foreach c, $(1), \
$(if $(shell command -v -- $(c)gcc 2>/dev/null), $(c))))
# output directory for tests below
TMPOUT := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/)
@ -187,12 +187,6 @@ dtbinst := -f $(srctree)/scripts/Makefile.dtbinst obj
# $(Q)$(MAKE) $(clean)=dir
clean := -f $(srctree)/scripts/Makefile.clean obj
###
# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.headersinst obj=
# Usage:
# $(Q)$(MAKE) $(hdr-inst)=dir
hdr-inst := -f $(srctree)/scripts/Makefile.headersinst obj
# echo command.
# Short version is used, if $(quiet) equals `quiet_', otherwise full one.
echo-cmd = $(if $($(quiet)cmd_$(1)),\
@ -213,12 +207,12 @@ objectify = $(foreach o,$(1),$(if $(filter /%,$(o)),$(o),$(obj)/$(o)))
# See Documentation/kbuild/makefiles.rst for more info
ifneq ($(KBUILD_NOCMDDEP),1)
# Check if both arguments are the same including their order. Result is empty
# Check if both commands are the same including their order. Result is empty
# string if equal. User may override this check using make KBUILD_NOCMDDEP=1
arg-check = $(filter-out $(subst $(space),$(space_escape),$(strip $(cmd_$@))), \
cmd-check = $(filter-out $(subst $(space),$(space_escape),$(strip $(cmd_$@))), \
$(subst $(space),$(space_escape),$(strip $(cmd_$1))))
else
arg-check = $(if $(strip $(cmd_$@)),,1)
cmd-check = $(if $(strip $(cmd_$@)),,1)
endif
# Replace >$< with >$$< to preserve $ when reloading the .cmd file
@ -231,15 +225,15 @@ make-cmd = $(call escsq,$(subst $(pound),$$(pound),$(subst $$,$$$$,$(cmd_$(1))))
# Find any prerequisites that is newer than target or that does not exist.
# PHONY targets skipped in both cases.
any-prereq = $(filter-out $(PHONY),$?) $(filter-out $(PHONY) $(wildcard $^),$^)
any-prereq = $(filter-out $(PHONY),$?)$(filter-out $(PHONY) $(wildcard $^),$^)
# Execute command if command has changed or prerequisite(s) are updated.
if_changed = $(if $(strip $(any-prereq) $(arg-check)), \
if_changed = $(if $(any-prereq)$(cmd-check), \
$(cmd); \
printf '%s\n' 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd, @:)
# Execute the command and also postprocess generated .d dependencies file.
if_changed_dep = $(if $(strip $(any-prereq) $(arg-check)),$(cmd_and_fixdep),@:)
if_changed_dep = $(if $(any-prereq)$(cmd-check),$(cmd_and_fixdep),@:)
cmd_and_fixdep = \
$(cmd); \
@ -249,7 +243,7 @@ cmd_and_fixdep = \
# Usage: $(call if_changed_rule,foo)
# Will check if $(cmd_foo) or any of the prerequisites changed,
# and if so will execute $(rule_foo).
if_changed_rule = $(if $(strip $(any-prereq) $(arg-check)),$(rule_$(1)),@:)
if_changed_rule = $(if $(any-prereq)$(cmd-check),$(rule_$(1)),@:)
###
# why - tell why a target got built
@ -274,8 +268,8 @@ ifeq ($(KBUILD_VERBOSE),2)
why = \
$(if $(filter $@, $(PHONY)),- due to target is PHONY, \
$(if $(wildcard $@), \
$(if $(strip $(any-prereq)),- due to: $(any-prereq), \
$(if $(arg-check), \
$(if $(any-prereq),- due to: $(any-prereq), \
$(if $(cmd-check), \
$(if $(cmd_$@),- due to command line change, \
$(if $(filter $@, $(targets)), \
- due to missing .cmd file, \

5
scripts/Makefile
View File

@ -31,11 +31,6 @@ always := $(hostprogs-y) $(hostprogs-m)
# The following hostprogs-y programs are only build on demand
hostprogs-y += unifdef
# These targets are used internally to avoid "is up to date" messages
PHONY += build_unifdef
build_unifdef: $(obj)/unifdef
@:
subdir-$(CONFIG_GCC_PLUGINS) += gcc-plugins
subdir-$(CONFIG_MODVERSIONS) += genksyms
subdir-$(CONFIG_SECURITY_SELINUX) += selinux

11
scripts/Makefile.build
View File

@ -294,6 +294,15 @@ quiet_cmd_cc_lst_c = MKLST $@
$(obj)/%.lst: $(src)/%.c FORCE
$(call if_changed_dep,cc_lst_c)
# header test (header-test-y target)
# ---------------------------------------------------------------------------
quiet_cmd_cc_s_h = CC $@
cmd_cc_s_h = $(CC) $(c_flags) -S -o $@ -x c /dev/null -include $<
$(obj)/%.h.s: $(src)/%.h FORCE
$(call if_changed_dep,cc_s_h)
# Compile assembler sources (.S)
# ---------------------------------------------------------------------------
@ -504,7 +513,7 @@ existing-targets := $(wildcard $(sort $(targets)))
-include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)
ifneq ($(srctree),.)
ifdef building_out_of_srctree
# Create directories for object files if they do not exist
obj-dirs := $(sort $(obj) $(patsubst %/,%, $(dir $(targets))))
# If targets exist, their directories apparently exist. Skip mkdir.

3
scripts/Makefile.extrawarn
View File

@ -34,7 +34,6 @@ warning-1 += $(call cc-option, -Wstringop-truncation)
warning-1 += -Wno-missing-field-initializers
warning-1 += -Wno-sign-compare
warning-2 := -Waggregate-return
warning-2 += -Wcast-align
warning-2 += -Wdisabled-optimization
warning-2 += -Wnested-externs
@ -68,10 +67,8 @@ else
ifdef CONFIG_CC_IS_CLANG
KBUILD_CFLAGS += -Wno-initializer-overrides
KBUILD_CFLAGS += -Wno-unused-value
KBUILD_CFLAGS += -Wno-format
KBUILD_CFLAGS += -Wno-sign-compare
KBUILD_CFLAGS += -Wno-format-zero-length
KBUILD_CFLAGS += -Wno-uninitialized
endif
endif

146
scripts/Makefile.headersinst
View File

@ -14,109 +14,89 @@ __headers:
include scripts/Kbuild.include
srcdir := $(srctree)/$(obj)
src := $(srctree)/$(obj)
gen := $(objtree)/$(subst include/,include/generated/,$(obj))
dst := usr/include
# When make is run under a fakechroot environment, the function
# $(wildcard $(srcdir)/*/.) doesn't only return directories, but also regular
# files. So, we are using a combination of sort/dir/wildcard which works
# with fakechroot.
subdirs := $(patsubst $(srcdir)/%/,%,\
$(filter-out $(srcdir)/,\
$(sort $(dir $(wildcard $(srcdir)/*/)))))
-include $(src)/Kbuild
# Recursion
__headers: $(subdirs)
# $(filter %/, ...) is a workaround for GNU Make <= 4.2.1, where
# $(wildcard $(src)/*/) contains not only directories but also regular files.
src-subdirs := $(patsubst $(src)/%/,%,$(filter %/, $(wildcard $(src)/*/)))
gen-subdirs := $(patsubst $(gen)/%/,%,$(filter %/, $(wildcard $(gen)/*/)))
all-subdirs := $(sort $(src-subdirs) $(gen-subdirs))
PHONY += $(subdirs)
$(subdirs):
$(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(dst)/$@
src-headers := $(if $(src-subdirs), $(shell cd $(src) && find $(src-subdirs) -name '*.h'))
src-headers := $(filter-out $(no-export-headers), $(src-headers))
gen-headers := $(if $(gen-subdirs), $(shell cd $(gen) && find $(gen-subdirs) -name '*.h'))
gen-headers := $(filter-out $(no-export-headers), $(gen-headers))
# Skip header install/check for include/uapi and arch/$(SRCARCH)/include/uapi.
# We have only sub-directories there.
skip-inst := $(if $(filter %/uapi,$(obj)),1)
# If the same header is exported from source and generated directories,
# the former takes precedence, but this should be warned.
duplicated := $(filter $(gen-headers), $(src-headers))
$(if $(duplicated), $(warning duplicated header export: $(duplicated)))
ifeq ($(skip-inst),)
gen-headers := $(filter-out $(duplicated), $(gen-headers))
# Kbuild file is optional
kbuild-file := $(srctree)/$(obj)/Kbuild
-include $(kbuild-file)
installdir := $(INSTALL_HDR_PATH)/$(dst)
gendir := $(objtree)/$(subst include/,include/generated/,$(obj))
header-files := $(notdir $(wildcard $(srcdir)/*.h))
header-files := $(filter-out $(no-export-headers), $(header-files))
genhdr-files := $(notdir $(wildcard $(gendir)/*.h))
genhdr-files := $(filter-out $(header-files), $(genhdr-files))
# files used to track state of install/check
install-file := $(installdir)/.install
check-file := $(installdir)/.check
# all headers files for this dir
all-files := $(header-files) $(genhdr-files)
output-files := $(addprefix $(installdir)/, $(all-files))
# Add dst path prefix
all-subdirs := $(addprefix $(dst)/, $(all-subdirs))
src-headers := $(addprefix $(dst)/, $(src-headers))
gen-headers := $(addprefix $(dst)/, $(gen-headers))
all-headers := $(src-headers) $(gen-headers)
# Work out what needs to be removed
oldheaders := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h))
unwanted := $(filter-out $(all-files),$(oldheaders))
old-subdirs := $(wildcard $(all-subdirs))
old-headers := $(if $(old-subdirs),$(shell find $(old-subdirs) -name '*.h'))
unwanted := $(filter-out $(all-headers), $(old-headers))
# Prefix unwanted with full paths to $(INSTALL_HDR_PATH)
unwanted-file := $(addprefix $(installdir)/, $(unwanted))
# Create directories
existing-dirs := $(sort $(dir $(old-headers)))
wanted-dirs := $(sort $(dir $(all-headers)))
new-dirs := $(filter-out $(existing-dirs), $(wanted-dirs))
$(if $(new-dirs), $(shell mkdir -p $(new-dirs)))
printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@))
quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
file$(if $(word 2, $(all-files)),s))
cmd_install = \
$(CONFIG_SHELL) $< $(installdir) $(srcdir) $(header-files); \
$(CONFIG_SHELL) $< $(installdir) $(gendir) $(genhdr-files); \
touch $@
quiet_cmd_remove = REMOVE $(unwanted)
cmd_remove = rm -f $(unwanted-file)
quiet_cmd_check = CHECK $(printdir) ($(words $(all-files)) files)
# Headers list can be pretty long, xargs helps to avoid
# the "Argument list too long" error.
cmd_check = for f in $(all-files); do \
echo "$(installdir)/$${f}"; done \
| xargs \
$(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \
touch $@
# Rules
ifndef HDRCHECK
# Rules for installing headers
__headers: $(install-file)
@:
targets += $(install-file)
$(install-file): scripts/headers_install.sh \
$(addprefix $(srcdir)/,$(header-files)) \
$(addprefix $(gendir)/,$(genhdr-files)) FORCE
$(if $(unwanted),$(call cmd,remove),)
$(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@)))
quiet_cmd_install = HDRINST $@
cmd_install = $(CONFIG_SHELL) $(srctree)/scripts/headers_install.sh $< $@
$(src-headers): $(dst)/%.h: $(src)/%.h $(srctree)/scripts/headers_install.sh FORCE
$(call if_changed,install)
else
__headers: $(check-file)
$(gen-headers): $(dst)/%.h: $(gen)/%.h $(srctree)/scripts/headers_install.sh FORCE
$(call if_changed,install)
quiet_cmd_remove = REMOVE $(unwanted)
cmd_remove = rm -f $(unwanted)
__headers: $(all-headers)
ifneq ($(unwanted),)
$(call cmd,remove)
endif
@:
targets += $(check-file)
$(check-file): scripts/headers_check.pl $(output-files) FORCE
$(call if_changed,check)
existing-headers := $(filter $(old-headers), $(all-headers))
-include $(foreach f,$(existing-headers),$(dir $(f)).$(notdir $(f)).cmd)
else
quiet_cmd_check = HDRCHK $<
cmd_check = $(PERL) $(srctree)/scripts/headers_check.pl $(dst) $(SRCARCH) $<; touch $@
check-files := $(addsuffix .chk, $(all-headers))
$(check-files): $(dst)/%.chk : $(dst)/% $(srctree)/scripts/headers_check.pl
$(call cmd,check)
__headers: $(check-files)
@:
endif
cmd_files := $(wildcard \
$(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd))
ifneq ($(cmd_files),)
include $(cmd_files)
endif
endif # skip-inst
PHONY += FORCE
FORCE: ;
FORCE:
.PHONY: $(PHONY)

2
scripts/Makefile.host
View File

@ -69,7 +69,7 @@ _hostcxx_flags = $(KBUILD_HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \
# $(objtree)/$(obj) for including generated headers from checkin source files
ifeq ($(KBUILD_EXTMOD),)
ifneq ($(srctree),.)
ifdef building_out_of_srctree
_hostc_flags += -I $(objtree)/$(obj)
_hostcxx_flags += -I $(objtree)/$(obj)
endif

26
scripts/Makefile.lib
View File

@ -66,6 +66,20 @@ extra-y += $(patsubst %.dtb,%.dt.yaml, $(dtb-y))
extra-$(CONFIG_OF_ALL_DTBS) += $(patsubst %.dtb,%.dt.yaml, $(dtb-))
endif
# Test self-contained headers
# Wildcard searches in $(srctree)/$(src)/, but not in $(objtree)/$(obj)/.
# Stale generated headers are often left over, so pattern matching should
# be avoided. Please notice $(srctree)/$(src)/ and $(objtree)/$(obj) point
# to the same location for in-tree building. So, header-test-pattern-y should
# be used with care.
header-test-y += $(filter-out $(header-test-), \
$(patsubst $(srctree)/$(src)/%, %, \
$(wildcard $(addprefix $(srctree)/$(src)/, \
$(header-test-pattern-y)))))
extra-$(CONFIG_HEADER_TEST) += $(addsuffix .s, $(header-test-y))
# Add subdir path
extra-y := $(addprefix $(obj)/,$(extra-y))
@ -140,7 +154,7 @@ endif
# $(srctree)/$(src) for including checkin headers from generated source files
# $(objtree)/$(obj) for including generated headers from checkin source files
ifeq ($(KBUILD_EXTMOD),)
ifneq ($(srctree),.)
ifdef building_out_of_srctree
_c_flags += -I $(srctree)/$(src) -I $(objtree)/$(obj)
_a_flags += -I $(srctree)/$(src) -I $(objtree)/$(obj)
_cpp_flags += -I $(srctree)/$(src) -I $(objtree)/$(obj)
@ -331,19 +345,19 @@ printf "%08x\n" $$dec_size | \
)
quiet_cmd_bzip2 = BZIP2 $@
cmd_bzip2 = { cat $(real-prereqs) | bzip2 -9 && $(size_append); } > $@
cmd_bzip2 = { cat $(real-prereqs) | bzip2 -9; $(size_append); } > $@
# Lzma
# ---------------------------------------------------------------------------
quiet_cmd_lzma = LZMA $@
cmd_lzma = { cat $(real-prereqs) | lzma -9 && $(size_append); } > $@
cmd_lzma = { cat $(real-prereqs) | lzma -9; $(size_append); } > $@
quiet_cmd_lzo = LZO $@
cmd_lzo = { cat $(real-prereqs) | lzop -9 && $(size_append); } > $@
cmd_lzo = { cat $(real-prereqs) | lzop -9; $(size_append); } > $@
quiet_cmd_lz4 = LZ4 $@
cmd_lz4 = { cat $(real-prereqs) | lz4c -l -c1 stdin stdout && \
cmd_lz4 = { cat $(real-prereqs) | lz4c -l -c1 stdin stdout; \
$(size_append); } > $@
# U-Boot mkimage
@ -386,7 +400,7 @@ quiet_cmd_uimage = UIMAGE $@
# big dictionary would increase the memory usage too much in the multi-call
# decompression mode. A BCJ filter isn't used either.
quiet_cmd_xzkern = XZKERN $@
cmd_xzkern = { cat $(real-prereqs) | sh $(srctree)/scripts/xz_wrap.sh && \
cmd_xzkern = { cat $(real-prereqs) | sh $(srctree)/scripts/xz_wrap.sh; \
$(size_append); } > $@
quiet_cmd_xzmisc = XZMISC $@

2
scripts/Makefile.modbuiltin
View File

@ -15,7 +15,7 @@ include include/config/tristate.conf
include scripts/Kbuild.include
ifneq ($(srctree),.)
ifdef building_out_of_srctree
# Create output directory if not already present
_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
endif

51
scripts/basic/fixdep.c
View File

@ -99,6 +99,7 @@
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
@ -109,6 +110,36 @@ static void usage(void)
exit(1);
}
/*
* In the intended usage of this program, the stdout is redirected to .*.cmd
* files. The return value of printf() and putchar() must be checked to catch
* any error, e.g. "No space left on device".
*/
static void xprintf(const char *format, ...)
{
va_list ap;
int ret;
va_start(ap, format);
ret = vprintf(format, ap);
if (ret < 0) {
perror("fixdep");
exit(1);
}
va_end(ap);
}
static void xputchar(int c)
{
int ret;
ret = putchar(c);
if (ret == EOF) {
perror("fixdep");
exit(1);
}
}
/*
* Print out a dependency path from a symbol name
*/
@ -116,7 +147,7 @@ static void print_dep(const char *m, int slen, const char *dir)
{
int c, prev_c = '/', i;
printf(" $(wildcard %s/", dir);
xprintf(" $(wildcard %s/", dir);
for (i = 0; i < slen; i++) {
c = m[i];
if (c == '_')
@ -124,10 +155,10 @@ static void print_dep(const char *m, int slen, const char *dir)
else
c = tolower(c);
if (c != '/' || prev_c != '/')
putchar(c);
xputchar(c);
prev_c = c;
}
printf(".h) \\\n");
xprintf(".h) \\\n");
}
struct item {
@ -324,13 +355,13 @@ static void parse_dep_file(char *m, const char *target)
*/
if (!saw_any_target) {
saw_any_target = 1;
printf("source_%s := %s\n\n",
target, m);
printf("deps_%s := \\\n", target);
xprintf("source_%s := %s\n\n",
target, m);
xprintf("deps_%s := \\\n", target);
}
is_first_dep = 0;
} else {
printf(" %s \\\n", m);
xprintf(" %s \\\n", m);
}
buf = read_file(m);
@ -353,8 +384,8 @@ static void parse_dep_file(char *m, const char *target)
exit(1);
}
printf("\n%s: $(deps_%s)\n\n", target, target);
printf("$(deps_%s):\n", target);
xprintf("\n%s: $(deps_%s)\n\n", target, target);
xprintf("$(deps_%s):\n", target);
}
int main(int argc, char *argv[])
@ -369,7 +400,7 @@ int main(int argc, char *argv[])
target = argv[2];
cmdline = argv[3];
printf("cmd_%s := %s\n\n", target, cmdline);
xprintf("cmd_%s := %s\n\n", target, cmdline);
buf = read_file(depfile);
parse_dep_file(buf, target);

8
scripts/coccinelle/api/kstrdup.cocci
View File

@ -77,7 +77,7 @@ p1 << r1.p1;
p2 << r1.p2;
@@
cocci.print_main("WARNING opportunity for kstrdep",p1)
cocci.print_main("WARNING opportunity for kstrdup",p1)
cocci.print_secs("strcpy",p2)
@script:python depends on org@
@ -85,7 +85,7 @@ p1 << r2.p1;
p2 << r2.p2;
@@
cocci.print_main("WARNING opportunity for kstrdep",p1)
cocci.print_main("WARNING opportunity for kstrdup",p1)
cocci.print_secs("memcpy",p2)
@script:python depends on report@
@ -93,7 +93,7 @@ p1 << r1.p1;
p2 << r1.p2;
@@
msg = "WARNING opportunity for kstrdep (strcpy on line %s)" % (p2[0].line)
msg = "WARNING opportunity for kstrdup (strcpy on line %s)" % (p2[0].line)
coccilib.report.print_report(p1[0], msg)
@script:python depends on report@
@ -101,5 +101,5 @@ p1 << r2.p1;
p2 << r2.p2;
@@
msg = "WARNING opportunity for kstrdep (memcpy on line %s)" % (p2[0].line)
msg = "WARNING opportunity for kstrdup (memcpy on line %s)" % (p2[0].line)
coccilib.report.print_report(p1[0], msg)

8
scripts/coccinelle/api/stream_open.cocci
View File

@ -35,11 +35,11 @@ type loff_t;
// a function that blocks
@ blocks @
identifier block_f;
identifier wait_event =~ "^wait_event_.*";
identifier wait =~ "^wait_.*";
@@
block_f(...) {
... when exists
wait_event(...)
wait(...)
... when exists
}
@ -49,12 +49,12 @@ identifier wait_event =~ "^wait_event_.*";
// XXX currently reader_blocks supports only direct and 1-level indirect cases.
@ reader_blocks_direct @
identifier stream_reader.readstream;
identifier wait_event =~ "^wait_event_.*";
identifier wait =~ "^wait_.*";
@@
readstream(...)
{
... when exists
wait_event(...)
wait(...)
... when exists
}

11
scripts/coccinelle/free/put_device.cocci
View File

@ -24,7 +24,7 @@ if (id == NULL || ...) { ... return ...; }
when != of_dev_put(id)
when != if (id) { ... put_device(&id->dev) ... }
when != e1 = (T)id
when != e1 = &id->dev
when != e1 = (T)(&id->dev)
when != e1 = get_device(&id->dev)
when != e1 = (T1)platform_get_drvdata(id)
(
@ -42,11 +42,10 @@ p1 << search.p1;
p2 << search.p2;
@@
coccilib.report.print_report(p2[0], "ERROR: missing put_device; "
+ "call of_find_device_by_node on line "
+ p1[0].line
+ ", but without a corresponding object release "
+ "within this function.")
coccilib.report.print_report(p2[0],
"ERROR: missing put_device; call of_find_device_by_node on line "
+ p1[0].line
+ ", but without a corresponding object release within this function.")
@script:python depends on org@
p1 << search.p1;

2
scripts/gdb/linux/Makefile
View File

@ -1,6 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
ifneq ($(srctree),.)
ifdef building_out_of_srctree
symlinks := $(patsubst $(srctree)/$(src)/%,%,$(wildcard $(srctree)/$(src)/*.py))

4
scripts/genksyms/keywords.c
View File

@ -25,6 +25,10 @@ static struct resword {
{ "__volatile__", VOLATILE_KEYW },
{ "__builtin_va_list", VA_LIST_KEYW },
{ "__int128", BUILTIN_INT_KEYW },
{ "__int128_t", BUILTIN_INT_KEYW },
{ "__uint128_t", BUILTIN_INT_KEYW },
// According to rth, c99 defines "_Bool", __restrict", __restrict__", "restrict". KAO
{ "_Bool", BOOL_KEYW },
{ "_restrict", RESTRICT_KEYW },

2
scripts/genksyms/parse.y
View File

@ -76,6 +76,7 @@ static void record_compound(struct string_list **keyw,
%token ATTRIBUTE_KEYW
%token AUTO_KEYW
%token BOOL_KEYW
%token BUILTIN_INT_KEYW
%token CHAR_KEYW
%token CONST_KEYW
%token DOUBLE_KEYW
@ -263,6 +264,7 @@ simple_type_specifier:
| VOID_KEYW
| BOOL_KEYW
| VA_LIST_KEYW
| BUILTIN_INT_KEYW
| TYPE { (*$1)->tag = SYM_TYPEDEF; $$ = $1; }
;

29
scripts/headers.sh
View File

@ -1,29 +0,0 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# Run headers_$1 command for all suitable architectures
# Stop on error
set -e
do_command()
{
if [ -f ${srctree}/arch/$2/include/asm/Kbuild ]; then
make ARCH=$2 KBUILD_HEADERS=$1 headers_$1
else
printf "Ignoring arch: %s\n" ${arch}
fi
}
archs=${HDR_ARCH_LIST:-$(ls ${srctree}/arch)}
for arch in ${archs}; do
case ${arch} in
um) # no userspace export
;;
*)
if [ -d ${srctree}/arch/${arch} ]; then
do_command $1 ${arch}
fi
;;
esac
done

48
scripts/headers_install.sh
View File

@ -1,47 +1,39 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
if [ $# -lt 2 ]
if [ $# -ne 2 ]
then
echo "Usage: headers_install.sh OUTDIR SRCDIR [FILES...]"
echo "Usage: headers_install.sh INFILE OUTFILE"
echo
echo "Prepares kernel header files for use by user space, by removing"
echo "all compiler.h definitions and #includes, removing any"
echo "#ifdef __KERNEL__ sections, and putting __underscores__ around"
echo "asm/inline/volatile keywords."
echo
echo "OUTDIR: directory to write each userspace header FILE to."
echo "SRCDIR: source directory where files are picked."
echo "FILES: list of header files to operate on."
echo "INFILE: header file to operate on"
echo "OUTFILE: output file which the processed header is writen to"
exit 1
fi
# Grab arguments
INFILE=$1
OUTFILE=$2
TMPFILE=$OUTFILE.tmp
OUTDIR="$1"
shift
SRCDIR="$1"
shift
trap 'rm -f $OUTFILE $TMPFILE' EXIT
# Iterate through files listed on command line
sed -E -e '
s/([[:space:](])(__user|__force|__iomem)[[:space:]]/\1/g
s/__attribute_const__([[:space:]]|$)/\1/g
s@^#include <linux/compiler(|_types).h>@@
s/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$)/\1__attribute__((packed))\2/g
s/(^|[[:space:](])(inline|asm|volatile)([[:space:](]|$)/\1__\2__\3/g
s@#(ifndef|define|endif[[:space:]]*/[*])[[:space:]]*_UAPI@#\1 @
' $INFILE > $TMPFILE || exit 1
FILE=
trap 'rm -f "$OUTDIR/$FILE" "$OUTDIR/$FILE.sed"' EXIT
for i in "$@"
do
FILE="$(basename "$i")"
sed -E \
-e 's/([[:space:](])(__user|__force|__iomem)[[:space:]]/\1/g' \
-e 's/__attribute_const__([[:space:]]|$)/\1/g' \
-e 's@^#include <linux/compiler(|_types).h>@@' \
-e 's/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$)/\1__attribute__((packed))\2/g' \
-e 's/(^|[[:space:](])(inline|asm|volatile)([[:space:](]|$)/\1__\2__\3/g' \
-e 's@#(ifndef|define|endif[[:space:]]*/[*])[[:space:]]*_UAPI@#\1 @' \
"$SRCDIR/$i" > "$OUTDIR/$FILE.sed" || exit 1
scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__ "$OUTDIR/$FILE.sed" \
> "$OUTDIR/$FILE"
[ $? -gt 1 ] && exit 1
rm -f "$OUTDIR/$FILE.sed"
done
scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__ $TMPFILE > $OUTFILE
[ $? -gt 1 ] && exit 1
rm -f $TMPFILE
trap - EXIT

3
scripts/kallsyms.c
View File

@ -150,6 +150,9 @@ static int read_symbol(FILE *in, struct sym_entry *s)
/* exclude debugging symbols */
else if (stype == 'N' || stype == 'n')
return -1;
/* exclude s390 kasan local symbols */
else if (!strncmp(sym, ".LASANPC", 8))
return -1;
/* include the type field in the symbol name, so that it gets
* compressed together */

2
scripts/package/builddeb
View File

@ -130,7 +130,7 @@ if is_enabled CONFIG_MODULES; then
fi
if [ "$ARCH" != "um" ]; then
$MAKE -f $srctree/Makefile headers_check
$MAKE -f $srctree/Makefile headers
$MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH="$libc_headers_dir/usr"
fi

2
scripts/package/mkspec
View File

@ -31,7 +31,7 @@ PROVIDES="$PROVIDES kernel-$KERNELRELEASE"
__KERNELRELEASE=$(echo $KERNELRELEASE | sed -e "s/-/_/g")
EXCLUDES="$RCS_TAR_IGNORE --exclude=.tmp_versions --exclude=*vmlinux* \
--exclude=*.o --exclude=*.ko --exclude=*.cmd --exclude=Documentation \
--exclude=.config.old --exclude=.missing-syscalls.d"
--exclude=.config.old --exclude=.missing-syscalls.d --exclude=*.s"
# We can label the here-doc lines for conditional output to the spec file
#

43
scripts/tags.sh
View File

@ -6,7 +6,7 @@
# mode may be any of: tags, TAGS, cscope
#
# Uses the following environment variables:
# ARCH, SUBARCH, SRCARCH, srctree, src, obj
# SUBARCH, SRCARCH, srctree
if [ "$KBUILD_VERBOSE" = "1" ]; then
set -x
@ -17,8 +17,7 @@ ignore="$(echo "$RCS_FIND_IGNORE" | sed 's|\\||g' )"
# tags and cscope files should also ignore MODVERSION *.mod.c files
ignore="$ignore ( -name *.mod.c ) -prune -o"
# Do not use full path if we do not use O=.. builds
# Use make O=. {tags|cscope}
# Use make KBUILD_ABS_SRCTREE=1 {tags|cscope}
# to force full paths for a non-O= build
if [ "${srctree}" = "." -o -z "${srctree}" ]; then
tree=
@ -36,21 +35,19 @@ elif [ "${ALLSOURCE_ARCHS}" = "all" ]; then
ALLSOURCE_ARCHS=$(find ${tree}arch/ -mindepth 1 -maxdepth 1 -type d -printf '%f ')
fi
# find sources in arch/$ARCH
# find sources in arch/$1
find_arch_sources()
{
for i in $archincludedir; do
prune="$prune -wholename $i -prune -o"
done
find ${tree}arch/$1 $ignore $subarchprune $prune -name "$2" \
-not -type l -print;
find ${tree}arch/$1 $ignore $prune -name "$2" -not -type l -print;
}
# find sources in arch/$1/include
find_arch_include_sources()
{
include=$(find ${tree}arch/$1/ $subarchprune \
-name include -type d -print);
include=$(find ${tree}arch/$1/ -name include -type d -print);
if [ -n "$include" ]; then
archincludedir="$archincludedir $include"
find $include $ignore -name "$2" -not -type l -print;
@ -306,36 +303,6 @@ if [ "${ARCH}" = "um" ]; then
else
archinclude=${SUBARCH}
fi
elif [ "${SRCARCH}" = "arm" -a "${SUBARCH}" != "" ]; then
subarchdir=$(find ${tree}arch/$SRCARCH/ -name "mach-*" -type d -o \
-name "plat-*" -type d);
mach_suffix=$SUBARCH
plat_suffix=$SUBARCH
# Special cases when $plat_suffix != $mach_suffix
case $mach_suffix in
"omap1" | "omap2")
plat_suffix="omap"
;;
esac
if [ ! -d ${tree}arch/$SRCARCH/mach-$mach_suffix ]; then
echo "Warning: arch/arm/mach-$mach_suffix/ not found." >&2
echo " Fix your \$SUBARCH appropriately" >&2
fi
for i in $subarchdir; do
case "$i" in
*"mach-"${mach_suffix})
;;
*"plat-"${plat_suffix})
;;
*)
subarchprune="$subarchprune \
-wholename $i -prune -o"
;;
esac
done
fi
remove_structs=

2
tools/testing/selftests/Makefile
View File

@ -74,7 +74,7 @@ endif
# Append kselftest to KBUILD_OUTPUT to avoid cluttering
# KBUILD_OUTPUT with selftest objects and headers installed
# by selftests Makefile or lib.mk.
ifneq ($(KBUILD_SRC),)
ifdef building_out_of_srctree
override LDFLAGS =
endif

4
tools/testing/selftests/lib.mk
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@ -70,7 +70,7 @@ define RUN_TESTS
endef
run_tests: all
ifneq ($(KBUILD_SRC),)
ifdef building_out_of_srctree
@if [ "X$(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)" != "X" ]; then
@rsync -aq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT)
fi
@ -125,7 +125,7 @@ clean:
# When make O= with kselftest target from main level
# the following aren't defined.
#
ifneq ($(KBUILD_SRC),)
ifdef building_out_of_srctree
LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)

1
usr/.gitignore vendored
View File

@ -7,4 +7,3 @@ initramfs_data.cpio.gz
initramfs_data.cpio.bz2
initramfs_data.cpio.lzma
initramfs_list
include

2
usr/Makefile
View File

@ -56,3 +56,5 @@ $(deps_initramfs): klibcdirs
$(obj)/$(datafile_y): $(obj)/gen_init_cpio $(deps_initramfs) klibcdirs
$(Q)$(initramfs) -l $(ramfs-input) > $(obj)/$(datafile_d_y)
$(call if_changed,initfs)
subdir-$(CONFIG_UAPI_HEADER_TEST) += include

3
usr/include/.gitignore vendored 100644
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@ -0,0 +1,3 @@
*
!.gitignore
!Makefile

132
usr/include/Makefile 100644
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@ -0,0 +1,132 @@
# SPDX-License-Identifier: GPL-2.0-only
# Unlike the kernel space, exported headers are written in standard C.
# - Forbid C++ style comments
# - Use '__inline__', '__asm__' instead of 'inline', 'asm'
#
# -std=c90 (equivalent to -ansi) catches the violation of those.
# We cannot go as far as adding -Wpedantic since it emits too many warnings.
UAPI_CFLAGS := -std=c90 -Wall -Werror=implicit-function-declaration
override c_flags = $(UAPI_CFLAGS) -Wp,-MD,$(depfile) -I$(objtree)/usr/include
# The following are excluded for now because they fail to build.
#
# Do not add a new header to the blacklist without legitimate reason.
# Please consider to fix the header first.
#
# Sorted alphabetically.
header-test- += asm/ipcbuf.h
header-test- += asm/msgbuf.h
header-test- += asm/sembuf.h
header-test- += asm/shmbuf.h
header-test- += asm/signal.h
header-test- += asm/ucontext.h
header-test- += drm/vmwgfx_drm.h
header-test- += linux/am437x-vpfe.h
header-test- += linux/android/binder.h
header-test- += linux/android/binderfs.h
header-test-$(CONFIG_CPU_BIG_ENDIAN) += linux/byteorder/big_endian.h
header-test-$(CONFIG_CPU_LITTLE_ENDIAN) += linux/byteorder/little_endian.h
header-test- += linux/coda.h
header-test- += linux/coda_psdev.h
header-test- += linux/dvb/audio.h
header-test- += linux/dvb/osd.h
header-test- += linux/elfcore.h
header-test- += linux/errqueue.h
header-test- += linux/fsmap.h
header-test- += linux/hdlc/ioctl.h
header-test- += linux/ivtv.h
header-test- += linux/jffs2.h
header-test- += linux/kexec.h
header-test- += linux/matroxfb.h
header-test- += linux/netfilter_bridge/ebtables.h
header-test- += linux/netfilter_ipv4/ipt_LOG.h
header-test- += linux/netfilter_ipv6/ip6t_LOG.h
header-test- += linux/nfc.h
header-test- += linux/nilfs2_ondisk.h
header-test- += linux/omap3isp.h
header-test- += linux/omapfb.h
header-test- += linux/patchkey.h
header-test- += linux/phonet.h
header-test- += linux/reiserfs_xattr.h
header-test- += linux/scc.h
header-test- += linux/sctp.h
header-test- += linux/signal.h
header-test- += linux/sysctl.h
header-test- += linux/usb/audio.h
header-test- += linux/v4l2-mediabus.h
header-test- += linux/v4l2-subdev.h
header-test- += linux/videodev2.h
header-test- += linux/vm_sockets.h
header-test- += misc/ocxl.h
header-test- += mtd/mtd-abi.h
header-test- += mtd/mtd-user.h
header-test- += scsi/scsi_bsg_fc.h
header-test- += scsi/scsi_netlink.h
header-test- += scsi/scsi_netlink_fc.h
header-test- += sound/asequencer.h
header-test- += sound/asoc.h
header-test- += sound/asound.h
header-test- += sound/compress_offload.h
header-test- += sound/emu10k1.h
header-test- += sound/sfnt_info.h
header-test- += sound/sof/eq.h
header-test- += sound/sof/fw.h
header-test- += sound/sof/header.h
header-test- += sound/sof/manifest.h
header-test- += sound/sof/trace.h
header-test- += xen/evtchn.h
header-test- += xen/gntdev.h
header-test- += xen/privcmd.h
# More headers are broken in some architectures
ifeq ($(SRCARCH),arc)
header-test- += linux/bpf_perf_event.h
endif
ifeq ($(SRCARCH),ia64)
header-test- += asm/setup.h
header-test- += asm/sigcontext.h
header-test- += asm/perfmon.h
header-test- += asm/perfmon_default_smpl.h
header-test- += linux/if_bonding.h
endif
ifeq ($(SRCARCH),mips)
header-test- += asm/stat.h
endif
ifeq ($(SRCARCH),powerpc)
header-test- += asm/stat.h
header-test- += linux/bpf_perf_event.h
endif
ifeq ($(SRCARCH),riscv)
header-test- += linux/bpf_perf_event.h
endif
ifeq ($(SRCARCH),s390)
header-test- += asm/runtime_instr.h
header-test- += asm/zcrypt.h
endif
ifeq ($(SRCARCH),sparc)
header-test- += asm/stat.h
header-test- += asm/uctx.h
header-test- += asm/fbio.h
header-test- += asm/openpromio.h
endif
# asm-generic/*.h is used by asm/*.h, and should not be included directly
header-test- += asm-generic/%
# The rest are compile-tested
header-test-y += $(filter-out $(header-test-), \
$(patsubst $(obj)/%,%, $(wildcard \
$(addprefix $(obj)/, *.h */*.h */*/*.h */*/*/*.h))))
# For GNU Make <= 4.2.1, $(wildcard $(obj)/*/) matches to not only directories
# but also regular files. Use $(filter %/, ...) just in case.
clean-dirs += $(patsubst $(obj)/%/,%,$(filter %/, $(wildcard $(obj)/*/)))