diff --git a/Documentation/kbuild/kbuild.txt b/Documentation/kbuild/kbuild.txt
index 114c7ce7b58de2c15e5b1c917c96e4926c605191..8390c360d4b350c960f1eebaeaeec6012dacb9b5 100644
--- a/Documentation/kbuild/kbuild.txt
+++ b/Documentation/kbuild/kbuild.txt
@@ -50,6 +50,22 @@ LDFLAGS_MODULE
--------------------------------------------------
Additional options used for $(LD) when linking modules.
+HOSTCFLAGS
+--------------------------------------------------
+Additional flags to be passed to $(HOSTCC) when building host programs.
+
+HOSTCXXFLAGS
+--------------------------------------------------
+Additional flags to be passed to $(HOSTCXX) when building host programs.
+
+HOSTLDFLAGS
+--------------------------------------------------
+Additional flags to be passed when linking host programs.
+
+HOSTLDLIBS
+--------------------------------------------------
+Additional libraries to link against when building host programs.
+
KBUILD_KCONFIG
--------------------------------------------------
Set the top-level Kconfig file to the value of this environment
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 048fc39a6b9161d629e8044559e0ad22267d0aa4..766355b1d2212236c2501835aece0b402d7454ae 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -661,7 +661,7 @@ Both possibilities are described in the following.
When compiling host programs, it is possible to set specific flags.
The programs will always be compiled utilising $(HOSTCC) passed
- the options specified in $(HOSTCFLAGS).
+ the options specified in $(KBUILD_HOSTCFLAGS).
To set flags that will take effect for all host programs created
in that Makefile, use the variable HOST_EXTRACFLAGS.
@@ -1105,6 +1105,12 @@ When kbuild executes, the following steps are followed (roughly):
target: source(s) FORCE
#WRONG!# $(call if_changed, ld/objcopy/gzip/...)
+ Note: if_changed should not be used more than once per target.
+ It stores the executed command in a corresponding .cmd
+ file and multiple calls would result in overwrites and
+ unwanted results when the target is up to date and only the
+ tests on changed commands trigger execution of commands.
+
ld
Link target. Often, LDFLAGS_$@ is used to set specific options to ld.
diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst
index ddc029734b25591a9cf6dbaef23db1a8ef6c2014..005d8842a503eb0c57372f4b3645ee73a1b71594 100644
--- a/Documentation/process/changes.rst
+++ b/Documentation/process/changes.rst
@@ -35,7 +35,7 @@ binutils 2.20 ld -v
flex 2.5.35 flex --version
bison 2.0 bison --version
util-linux 2.10o fdformat --version
-module-init-tools 0.9.10 depmod -V
+kmod 13 depmod -V
e2fsprogs 1.41.4 e2fsck -V
jfsutils 1.1.3 fsck.jfs -V
reiserfsprogs 3.6.3 reiserfsck -V
@@ -156,12 +156,6 @@ is not build with ``CONFIG_KALLSYMS`` and you have no way to rebuild and
reproduce the Oops with that option, then you can still decode that Oops
with ksymoops.
-Module-Init-Tools
------------------
-
-A new module loader is now in the kernel that requires ``module-init-tools``
-to use. It is backward compatible with the 2.4.x series kernels.
-
Mkinitrd
--------
@@ -371,16 +365,17 @@ Util-linux
- <https://www.kernel.org/pub/linux/utils/util-linux/>
+Kmod
+----
+
+- <https://www.kernel.org/pub/linux/utils/kernel/kmod/>
+- <https://git.kernel.org/pub/scm/utils/kernel/kmod/kmod.git>
+
Ksymoops
--------
- <https://www.kernel.org/pub/linux/utils/kernel/ksymoops/v2.4/>
-Module-Init-Tools
------------------
-
-- <https://www.kernel.org/pub/linux/utils/kernel/module-init-tools/>
-
Mkinitrd
--------
diff --git a/Makefile b/Makefile
index 863f58503beed45ca5ec40606a6b313fe4ae6b14..cc4875d5cacabf4b0858a7573d1c867d5aadb242 100644
--- a/Makefile
+++ b/Makefile
@@ -224,7 +224,7 @@ clean-targets := %clean mrproper cleandocs
no-dot-config-targets := $(clean-targets) \
cscope gtags TAGS tags help% %docs check% coccicheck \
$(version_h) headers_% archheaders archscripts \
- kernelversion %src-pkg
+ %asm-generic kernelversion %src-pkg
config-targets := 0
mixed-targets := 0
@@ -359,11 +359,12 @@ HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null)
HOSTCC = gcc
HOSTCXX = g++
-HOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \
- -fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS)
-HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS)
-HOSTLDFLAGS := $(HOST_LFS_LDFLAGS)
-HOST_LOADLIBES := $(HOST_LFS_LIBS)
+KBUILD_HOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \
+ -fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS) \
+ $(HOSTCFLAGS)
+KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
+KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
+KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
# Make variables (CC, etc...)
AS = $(CROSS_COMPILE)as
@@ -429,10 +430,10 @@ KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
LDFLAGS :=
GCC_PLUGINS_CFLAGS :=
-export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
-export CPP AR NM STRIP OBJCOPY OBJDUMP HOSTLDFLAGS HOST_LOADLIBES
+export ARCH SRCARCH CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
+export CPP AR NM STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS
export MAKE LEX YACC AWK GENKSYMS INSTALLKERNEL PERL PYTHON PYTHON2 PYTHON3 UTS_MACHINE
-export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
+export HOSTCXX KBUILD_HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
@@ -1009,9 +1010,10 @@ ifdef CONFIG_GDB_SCRIPTS
endif
+$(call if_changed,link-vmlinux)
-# Build samples along the rest of the kernel
+# Build samples along the rest of the kernel. This needs headers_install.
ifdef CONFIG_SAMPLES
vmlinux-dirs += samples
+samples: headers_install
endif
# The actual objects are generated when descending,
@@ -1116,7 +1118,7 @@ define filechk_version.h
echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';)
endef
-$(version_h): $(srctree)/Makefile FORCE
+$(version_h): FORCE
$(call filechk,version.h)
$(Q)rm -f $(old_version_h)
diff --git a/arch/alpha/boot/Makefile b/arch/alpha/boot/Makefile
index 0cbe4c59d3ce61901417e877060473ae99a6f8f8..991e023a6fc469df0412acdaea688ffa1ee7e184 100644
--- a/arch/alpha/boot/Makefile
+++ b/arch/alpha/boot/Makefile
@@ -14,7 +14,7 @@ targets := vmlinux.gz vmlinux \
tools/bootpzh bootloader bootpheader bootpzheader
OBJSTRIP := $(obj)/tools/objstrip
-HOSTCFLAGS := -Wall -I$(objtree)/usr/include
+KBUILD_HOSTCFLAGS := -Wall -I$(objtree)/usr/include
BOOTCFLAGS += -I$(objtree)/$(obj) -I$(srctree)/$(obj)
# SRM bootable image. Copy to offset 512 of a partition.
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 62ebeae9f837d8b302c72f79ccb0957fc184e89c..e7d703d8fac3af887a3914a6b7c29d732582ae51 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -10,9 +10,6 @@
#
# Copyright (C) 1995-2001 by Russell King
-# Ensure linker flags are correct
-LDFLAGS :=
-
LDFLAGS_vmlinux :=-p --no-undefined -X --pic-veneer
ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
LDFLAGS_vmlinux += --be8
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index 4ea93c9df77b06c0b2f7fb6ff176ca9f9c240745..7415f181907b854aff92fb303ea7ea391a9ce922 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -19,31 +19,6 @@ ifeq ($(CONFIG_PM_DEBUG),y)
CFLAGS_pm.o += -DDEBUG
endif
-# Default sed regexp - multiline due to syntax constraints
-define sed-y
- "/^->/{s:->#\(.*\):/* \1 */:; \
- s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
- s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
- s:->::; p;}"
-endef
-
-# Use filechk to avoid rebuilds when a header changes, but the resulting file
-# does not
-define filechk_offsets
- (set -e; \
- echo "#ifndef $2"; \
- echo "#define $2"; \
- echo "/*"; \
- echo " * DO NOT MODIFY."; \
- echo " *"; \
- echo " * This file was generated by Kbuild"; \
- echo " */"; \
- echo ""; \
- sed -ne $(sed-y); \
- echo ""; \
- echo "#endif" )
-endef
-
arch/arm/mach-at91/pm_data-offsets.s: arch/arm/mach-at91/pm_data-offsets.c
$(call if_changed_dep,cc_s_c)
diff --git a/arch/arm64/kernel/vdso/note.S b/arch/arm64/kernel/vdso/note.S
index b82c85e5d9720877adbe4101682c9c9dce8ab8c6..e20483b104d9053ade8ba5fdfb00ce383046733b 100644
--- a/arch/arm64/kernel/vdso/note.S
+++ b/arch/arm64/kernel/vdso/note.S
@@ -22,7 +22,10 @@
#include <linux/uts.h>
#include <linux/version.h>
#include <linux/elfnote.h>
+#include <linux/build-salt.h>
ELFNOTE_START(Linux, 0, "a")
.long LINUX_VERSION_CODE
ELFNOTE_END
+
+BUILD_SALT
diff --git a/arch/openrisc/Makefile b/arch/openrisc/Makefile
index 89076a66eee266d79782949f93a9cbba30371b1a..70e06d34006cb757349f12cf77a710b744b32cfd 100644
--- a/arch/openrisc/Makefile
+++ b/arch/openrisc/Makefile
@@ -19,7 +19,6 @@
KBUILD_DEFCONFIG := or1ksim_defconfig
-LDFLAGS :=
OBJCOPYFLAGS := -O binary -R .note -R .comment -S
LDFLAGS_vmlinux :=
LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
diff --git a/arch/powerpc/kernel/vdso32/note.S b/arch/powerpc/kernel/vdso32/note.S
index d4b5be4f3d5fc67a157d38b24388c5c069dfe106..227a7327399e620bab8aac77278894624a27f792 100644
--- a/arch/powerpc/kernel/vdso32/note.S
+++ b/arch/powerpc/kernel/vdso32/note.S
@@ -5,6 +5,7 @@
#include <linux/uts.h>
#include <linux/version.h>
+#include <linux/build-salt.h>
#define ASM_ELF_NOTE_BEGIN(name, flags, vendor, type) \
.section name, flags; \
@@ -23,3 +24,5 @@
ASM_ELF_NOTE_BEGIN(".note.kernel-version", "a", UTS_SYSNAME, 0)
.long LINUX_VERSION_CODE
ASM_ELF_NOTE_END
+
+BUILD_SALT
diff --git a/arch/powerpc/purgatory/Makefile b/arch/powerpc/purgatory/Makefile
index 30e05decbb4cd8b381ab125ba52e8038ba566b3e..4314ba5baf435c70d3a78006adabba34367acaf9 100644
--- a/arch/powerpc/purgatory/Makefile
+++ b/arch/powerpc/purgatory/Makefile
@@ -6,9 +6,8 @@ LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined
$(obj)/purgatory.ro: $(obj)/trampoline.o FORCE
$(call if_changed,ld)
-CMD_BIN2C = $(objtree)/scripts/basic/bin2c
quiet_cmd_bin2c = BIN2C $@
- cmd_bin2c = $(CMD_BIN2C) kexec_purgatory < $< > $@
+ cmd_bin2c = $(objtree)/scripts/bin2c kexec_purgatory < $< > $@
$(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE
$(call if_changed,bin2c)
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 6d4a5f6c3f4f6e92b3c709520c5230da5a3826d7..2627e4813edf68c22b06aac206d615d11600b6c0 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -8,7 +8,6 @@
# for more details.
#
-LDFLAGS :=
OBJCOPYFLAGS := -O binary
LDFLAGS_vmlinux :=
ifeq ($(CONFIG_DYNAMIC_FTRACE),y)
diff --git a/arch/s390/kernel/syscalls/Makefile b/arch/s390/kernel/syscalls/Makefile
index 8ff96c08955f4af3f323fb0e7a7ac863329a4364..4d929edc80a6296eecdd9911457d1fb691de6d6b 100644
--- a/arch/s390/kernel/syscalls/Makefile
+++ b/arch/s390/kernel/syscalls/Makefile
@@ -25,15 +25,15 @@ _dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') \
$(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
define filechk_syshdr
- $(CONFIG_SHELL) '$(systbl)' -H -a $(syshdr_abi_$(basetarget)) -f "$2"
+ $(CONFIG_SHELL) '$(systbl)' -H -a $(syshdr_abi_$(basetarget)) -f "$2" < $<
endef
define filechk_sysnr
- $(CONFIG_SHELL) '$(systbl)' -N -a $(sysnr_abi_$(basetarget))
+ $(CONFIG_SHELL) '$(systbl)' -N -a $(sysnr_abi_$(basetarget)) < $<
endef
define filechk_syscalls
- $(CONFIG_SHELL) '$(systbl)' -S
+ $(CONFIG_SHELL) '$(systbl)' -S < $<
endef
syshdr_abi_unistd_32 := common,32
diff --git a/arch/s390/purgatory/Makefile b/arch/s390/purgatory/Makefile
index 8d61218a71aa876fa01209df33f19f3c89ecc955..ce6a3f75065bf9719eb06a6c3c03f9b8b33f1082 100644
--- a/arch/s390/purgatory/Makefile
+++ b/arch/s390/purgatory/Makefile
@@ -28,9 +28,8 @@ KBUILD_AFLAGS := $(filter-out -DCC_USING_EXPOLINE,$(KBUILD_AFLAGS))
$(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE
$(call if_changed,ld)
-CMD_BIN2C = $(objtree)/scripts/basic/bin2c
quiet_cmd_bin2c = BIN2C $@
- cmd_bin2c = $(CMD_BIN2C) kexec_purgatory < $< > $@
+ cmd_bin2c = $(objtree)/scripts/bin2c kexec_purgatory < $< > $@
$(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE
$(call if_changed,bin2c)
diff --git a/arch/um/Makefile b/arch/um/Makefile
index e54dda8a036388438bcac0302d6dcf0259ef8a96..306ee51c189f2b59f73eac5408923c44e176510c 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -116,14 +116,7 @@ endef
KBUILD_KCONFIG := $(HOST_DIR)/um/Kconfig
archheaders:
- $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
- kbuild-file=$(HOST_DIR)/include/asm/Kbuild \
- obj=$(HOST_DIR)/include/generated/asm
- $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
- kbuild-file=$(HOST_DIR)/include/uapi/asm/Kbuild \
- obj=$(HOST_DIR)/include/generated/uapi/asm
- $(Q)$(MAKE) KBUILD_SRC= ARCH=$(HEADER_ARCH) archheaders
-
+ $(Q)$(MAKE) -f $(srctree)/Makefile ARCH=$(HEADER_ARCH) asm-generic archheaders
archprepare: include/generated/user_constants.h
@@ -169,7 +162,7 @@ define filechk_gen-asm-offsets
echo " *"; \
echo " */"; \
echo ""; \
- sed -ne "/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}"; \
+ sed -ne "/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}" < $<; \
echo ""; )
endef
diff --git a/arch/um/drivers/Makefile b/arch/um/drivers/Makefile
index 16b3cebddafb97a2384829b61ce013b193bb54c6..693319839f69ec93083b03d3f267d92c85f7c4fb 100644
--- a/arch/um/drivers/Makefile
+++ b/arch/um/drivers/Makefile
@@ -25,10 +25,10 @@ LDFLAGS_vde.o := -r $(shell $(CC) $(CFLAGS) -print-file-name=libvdeplug.a)
targets := pcap_kern.o pcap_user.o vde_kern.o vde_user.o
$(obj)/pcap.o: $(obj)/pcap_kern.o $(obj)/pcap_user.o
- $(LD) -r -dp -o $@ $^ $(LDFLAGS) $(LDFLAGS_pcap.o)
+ $(LD) -r -dp -o $@ $^ $(ld_flags)
$(obj)/vde.o: $(obj)/vde_kern.o $(obj)/vde_user.o
- $(LD) -r -dp -o $@ $^ $(LDFLAGS) $(LDFLAGS_vde.o)
+ $(LD) -r -dp -o $@ $^ $(ld_flags)
#XXX: The call below does not work because the flags are added before the
# object name, so nothing from the library gets linked.
diff --git a/arch/x86/Makefile.um b/arch/x86/Makefile.um
index 45af19921ebd23090c2e2ffe775ea3c5f37d6961..5296f8c9e7f0dc13f46f5844ebfa8c37aab3b455 100644
--- a/arch/x86/Makefile.um
+++ b/arch/x86/Makefile.um
@@ -13,8 +13,6 @@ KBUILD_CFLAGS += $(call cc-option,-m32)
KBUILD_AFLAGS += $(call cc-option,-m32)
LINK-y += $(call cc-option,-m32)
-export LDFLAGS
-
LDS_EXTRA := -Ui386
export LDS_EXTRA
diff --git a/arch/x86/entry/vdso/vdso-note.S b/arch/x86/entry/vdso/vdso-note.S
index 79a071e4357e4bc51f8813427d0f0ffa4c5ba56c..79423170118f7f5fbdca28160c08523da49abdab 100644
--- a/arch/x86/entry/vdso/vdso-note.S
+++ b/arch/x86/entry/vdso/vdso-note.S
@@ -3,6 +3,7 @@
* Here we can supply some information useful to userland.
*/
+#include <linux/build-salt.h>
#include <linux/uts.h>
#include <linux/version.h>
#include <linux/elfnote.h>
@@ -10,3 +11,5 @@
ELFNOTE_START(Linux, 0, "a")
.long LINUX_VERSION_CODE
ELFNOTE_END
+
+BUILD_SALT
diff --git a/arch/x86/entry/vdso/vdso32/note.S b/arch/x86/entry/vdso/vdso32/note.S
index 9fd51f206314cbf09deb7a09efe5950e9542547f..e78047d119f6b5d58dc9386ff34e845eada4f907 100644
--- a/arch/x86/entry/vdso/vdso32/note.S
+++ b/arch/x86/entry/vdso/vdso32/note.S
@@ -4,6 +4,7 @@
* Here we can supply some information useful to userland.
*/
+#include <linux/build-salt.h>
#include <linux/version.h>
#include <linux/elfnote.h>
@@ -14,6 +15,8 @@ ELFNOTE_START(Linux, 0, "a")
.long LINUX_VERSION_CODE
ELFNOTE_END
+BUILD_SALT
+
#ifdef CONFIG_XEN
/*
* Add a special note telling glibc's dynamic linker a fake hardware
diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile
index 81a8e33115ad5b72d53fc0829930d60238dbb0c2..3cf302b2633222ff45323b2528f3499233b650c5 100644
--- a/arch/x86/purgatory/Makefile
+++ b/arch/x86/purgatory/Makefile
@@ -28,9 +28,8 @@ $(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE
targets += kexec-purgatory.c
-CMD_BIN2C = $(objtree)/scripts/basic/bin2c
quiet_cmd_bin2c = BIN2C $@
- cmd_bin2c = $(CMD_BIN2C) kexec_purgatory < $< > $@
+ cmd_bin2c = $(objtree)/scripts/bin2c kexec_purgatory < $< > $@
$(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE
$(call if_changed,bin2c)
diff --git a/arch/xtensa/boot/Makefile b/arch/xtensa/boot/Makefile
index 53e4178711e6952a4709ba01e6db8534489c9213..dc9e0ba7122cad1e982ac33eb5c9d60d9a1db48a 100644
--- a/arch/xtensa/boot/Makefile
+++ b/arch/xtensa/boot/Makefile
@@ -30,8 +30,7 @@ Image: boot-elf
zImage: boot-redboot
uImage: $(obj)/uImage
-boot-elf boot-redboot: $(addprefix $(obj)/,$(subdir-y)) \
- $(addprefix $(obj)/,$(host-progs))
+boot-elf boot-redboot: $(addprefix $(obj)/,$(subdir-y))
$(Q)$(MAKE) $(build)=$(obj)/$@ $(MAKECMDGOALS)
OBJCOPYFLAGS = --strip-all -R .comment -R .note.gnu.build-id -O binary
diff --git a/include/linux/build-salt.h b/include/linux/build-salt.h
new file mode 100644
index 0000000000000000000000000000000000000000..bb007bd05e7a81a62947f0f141e89610088bea20
--- /dev/null
+++ b/include/linux/build-salt.h
@@ -0,0 +1,20 @@
+#ifndef __BUILD_SALT_H
+#define __BUILD_SALT_H
+
+#include <linux/elfnote.h>
+
+#define LINUX_ELFNOTE_BUILD_SALT 0x100
+
+#ifdef __ASSEMBLER__
+
+#define BUILD_SALT \
+ ELFNOTE(Linux, LINUX_ELFNOTE_BUILD_SALT, .asciz CONFIG_BUILD_SALT)
+
+#else
+
+#define BUILD_SALT \
+ ELFNOTE32("Linux", LINUX_ELFNOTE_BUILD_SALT, CONFIG_BUILD_SALT)
+
+#endif
+
+#endif /* __BUILD_SALT_H */
diff --git a/init/Kconfig b/init/Kconfig
index 8b1ab81ecda8f8cea83da326ffa9e9d150473fcf..570190477e3062f636e0944327cc77c1a7b37ef7 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -107,6 +107,15 @@ config LOCALVERSION_AUTO
which is done within the script "scripts/setlocalversion".)
+config BUILD_SALT
+ string "Build ID Salt"
+ default ""
+ help
+ The build ID is used to link binaries and their debug info. Setting
+ this option will use the value in the calculation of the build id.
+ This is mostly useful for distributions which want to ensure the
+ build is unique between builds. It's safe to leave the default.
+
config HAVE_KERNEL_GZIP
bool
diff --git a/init/version.c b/init/version.c
index bfb4e3f4955e0caed1ae3d5b404f55ccdacf35a0..ef4012ec43751122eea2e55e86f9b5ec8faad3c9 100644
--- a/init/version.c
+++ b/init/version.c
@@ -7,6 +7,7 @@
*/
#include <generated/compile.h>
+#include <linux/build-salt.h>
#include <linux/export.h>
#include <linux/uts.h>
#include <linux/utsname.h>
@@ -49,3 +50,5 @@ const char linux_proc_banner[] =
"%s version %s"
" (" LINUX_COMPILE_BY "@" LINUX_COMPILE_HOST ")"
" (" LINUX_COMPILER ") %s\n";
+
+BUILD_SALT;
diff --git a/kernel/Makefile b/kernel/Makefile
index 04bc07c2b42a9dfef399caea56a12b072f0ad028..7a63d567fdb571f357910a83cf3398df65876016 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -123,7 +123,7 @@ targets += config_data.gz
$(obj)/config_data.gz: $(KCONFIG_CONFIG) FORCE
$(call if_changed,gzip)
- filechk_ikconfiggz = (echo "static const char kernel_config_data[] __used = MAGIC_START"; cat $< | scripts/basic/bin2c; echo "MAGIC_END;")
+ filechk_ikconfiggz = (echo "static const char kernel_config_data[] __used = MAGIC_START"; cat $< | scripts/bin2c; echo "MAGIC_END;")
targets += config_data.h
$(obj)/config_data.h: $(obj)/config_data.gz FORCE
$(call filechk,ikconfiggz)
diff --git a/net/bpfilter/Makefile b/net/bpfilter/Makefile
index 39c6980b5d9952eed1046f656d8c0a85b4a0d2d6..0947ee7f70d589543f87cae8f3e46bc3fc7f4ea3 100644
--- a/net/bpfilter/Makefile
+++ b/net/bpfilter/Makefile
@@ -5,14 +5,14 @@
hostprogs-y := bpfilter_umh
bpfilter_umh-objs := main.o
-HOSTCFLAGS += -I. -Itools/include/ -Itools/include/uapi
+KBUILD_HOSTCFLAGS += -I. -Itools/include/ -Itools/include/uapi
HOSTCC := $(CC)
ifeq ($(CONFIG_BPFILTER_UMH), y)
# builtin bpfilter_umh should be compiled with -static
# since rootfs isn't mounted at the time of __init
# function is called and do_execv won't find elf interpreter
-HOSTLDFLAGS += -static
+KBUILD_HOSTLDFLAGS += -static
endif
$(obj)/bpfilter_umh_blob.o: $(obj)/bpfilter_umh
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index 1303af10e54d5d44de7c4789a48c030ff2646e66..bd9f6c2a808e0c21f94863555a6b0ee54c8a569c 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -164,11 +164,11 @@ always += xdpsock_kern.o
always += xdp_fwd_kern.o
always += task_fd_query_kern.o
-HOSTCFLAGS += -I$(objtree)/usr/include
-HOSTCFLAGS += -I$(srctree)/tools/lib/
-HOSTCFLAGS += -I$(srctree)/tools/testing/selftests/bpf/
-HOSTCFLAGS += -I$(srctree)/tools/lib/ -I$(srctree)/tools/include
-HOSTCFLAGS += -I$(srctree)/tools/perf
+KBUILD_HOSTCFLAGS += -I$(objtree)/usr/include
+KBUILD_HOSTCFLAGS += -I$(srctree)/tools/lib/
+KBUILD_HOSTCFLAGS += -I$(srctree)/tools/testing/selftests/bpf/
+KBUILD_HOSTCFLAGS += -I$(srctree)/tools/lib/ -I$(srctree)/tools/include
+KBUILD_HOSTCFLAGS += -I$(srctree)/tools/perf
HOSTCFLAGS_bpf_load.o += -I$(objtree)/usr/include -Wno-unused-variable
HOSTCFLAGS_trace_helpers.o += -I$(srctree)/tools/lib/bpf/
@@ -180,12 +180,12 @@ HOSTCFLAGS_trace_event_user.o += -I$(srctree)/tools/lib/bpf/
HOSTCFLAGS_sampleip_user.o += -I$(srctree)/tools/lib/bpf/
HOSTCFLAGS_task_fd_query_user.o += -I$(srctree)/tools/lib/bpf/
-HOST_LOADLIBES += $(LIBBPF) -lelf
-HOSTLOADLIBES_tracex4 += -lrt
-HOSTLOADLIBES_trace_output += -lrt
-HOSTLOADLIBES_map_perf_test += -lrt
-HOSTLOADLIBES_test_overhead += -lrt
-HOSTLOADLIBES_xdpsock += -pthread
+KBUILD_HOSTLDLIBS += $(LIBBPF) -lelf
+HOSTLDLIBS_tracex4 += -lrt
+HOSTLDLIBS_trace_output += -lrt
+HOSTLDLIBS_map_perf_test += -lrt
+HOSTLDLIBS_test_overhead += -lrt
+HOSTLDLIBS_xdpsock += -pthread
# Allows pointing LLC/CLANG to a LLVM backend with bpf support, redefine on cmdline:
# make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang
diff --git a/samples/seccomp/Makefile b/samples/seccomp/Makefile
index ba942e3ead890de9f4632d25a5fc1fd000676296..cf34ff6b406570c8604ac797b18e34cc6476d569 100644
--- a/samples/seccomp/Makefile
+++ b/samples/seccomp/Makefile
@@ -30,9 +30,9 @@ HOSTCFLAGS_bpf-direct.o += $(MFLAG)
HOSTCFLAGS_dropper.o += $(MFLAG)
HOSTCFLAGS_bpf-helper.o += $(MFLAG)
HOSTCFLAGS_bpf-fancy.o += $(MFLAG)
-HOSTLOADLIBES_bpf-direct += $(MFLAG)
-HOSTLOADLIBES_bpf-fancy += $(MFLAG)
-HOSTLOADLIBES_dropper += $(MFLAG)
+HOSTLDLIBS_bpf-direct += $(MFLAG)
+HOSTLDLIBS_bpf-fancy += $(MFLAG)
+HOSTLDLIBS_dropper += $(MFLAG)
endif
always := $(hostprogs-m)
endif
diff --git a/scripts/.gitignore b/scripts/.gitignore
index 0442c06eefcb2d19b1ddf2408539cf680094351c..12d302d70128f8a9ee2909d12b4d666c77b74c42 100644
--- a/scripts/.gitignore
+++ b/scripts/.gitignore
@@ -1,6 +1,7 @@
#
# Generated files
#
+bin2c
conmakehash
kallsyms
pnmtologo
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index d52db4279aa557085d8c7e26d9b16185c44f65cb..1d0665e83bf965c86281c35c386d6dba70cc56e2 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -56,7 +56,7 @@ kecho := $($(quiet)kecho)
define filechk
$(Q)set -e; \
mkdir -p $(dir $@); \
- $(filechk_$(1)) < $< > $@.tmp; \
+ $(filechk_$(1)) > $@.tmp; \
if [ -r $@ ] && cmp -s $@ $@.tmp; then \
rm -f $@.tmp; \
else \
@@ -126,7 +126,7 @@ cc-option = $(call __cc-option, $(CC),\
# hostcc-option
# Usage: cflags-y += $(call hostcc-option,-march=winchip-c6,-march=i586)
hostcc-option = $(call __cc-option, $(HOSTCC),\
- $(HOSTCFLAGS) $(HOST_EXTRACFLAGS),$(1),$(2))
+ $(KBUILD_HOSTCFLAGS) $(HOST_EXTRACFLAGS),$(1),$(2))
# cc-option-yn
# Usage: flag := $(call cc-option-yn,-march=winchip-c6)
diff --git a/scripts/Makefile b/scripts/Makefile
index 25ab143cbe148b3fcd04432b77ceb929c0dc5d8f..61affa300d25de814ac564a590dcd24fe45b251c 100644
--- a/scripts/Makefile
+++ b/scripts/Makefile
@@ -10,6 +10,7 @@
HOST_EXTRACFLAGS += -I$(srctree)/tools/include
+hostprogs-$(CONFIG_BUILD_BIN2C) += bin2c
hostprogs-$(CONFIG_KALLSYMS) += kallsyms
hostprogs-$(CONFIG_LOGO) += pnmtologo
hostprogs-$(CONFIG_VT) += conmakehash
@@ -22,8 +23,8 @@ hostprogs-$(CONFIG_SYSTEM_EXTRA_CERTIFICATE) += insert-sys-cert
HOSTCFLAGS_sortextable.o = -I$(srctree)/tools/include
HOSTCFLAGS_asn1_compiler.o = -I$(srctree)/include
-HOSTLOADLIBES_sign-file = -lcrypto
-HOSTLOADLIBES_extract-cert = -lcrypto
+HOSTLDLIBS_sign-file = -lcrypto
+HOSTLDLIBS_extract-cert = -lcrypto
always := $(hostprogs-y) $(hostprogs-m)
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 514ed63ff5710789fda060eb06cf10813a4124ad..1adaac4e10d8f78ae571ba115729d51727db8fd1 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -53,13 +53,6 @@ endif
include scripts/Makefile.lib
-ifdef host-progs
-ifneq ($(hostprogs-y),$(host-progs))
-$(warning kbuild: $(obj)/Makefile - Usage of host-progs is deprecated. Please replace with hostprogs-y!)
-hostprogs-y += $(host-progs)
-endif
-endif
-
# Do not include host rules unless needed
ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(hostcxxlibs-m),)
include scripts/Makefile.host
diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean
index 17ef94c635cd5dcfd23c355576a351730076dd73..0b80e3207b20d8d6e5e5ae45e2ed923285d4a5d7 100644
--- a/scripts/Makefile.clean
+++ b/scripts/Makefile.clean
@@ -38,7 +38,6 @@ subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn))
__clean-files := $(extra-y) $(extra-m) $(extra-) \
$(always) $(targets) $(clean-files) \
- $(host-progs) \
$(hostprogs-y) $(hostprogs-m) $(hostprogs-) \
$(hostlibs-y) $(hostlibs-m) $(hostlibs-) \
$(hostcxxlibs-y) $(hostcxxlibs-m)
diff --git a/scripts/Makefile.host b/scripts/Makefile.host
index aa971cc3f339ab54238dd3ddae0d6fb83808861f..0393f75db4d4dfd542e49e947b203c50fd1a9022 100644
--- a/scripts/Makefile.host
+++ b/scripts/Makefile.host
@@ -62,9 +62,9 @@ host-cxxshobjs := $(addprefix $(obj)/,$(host-cxxshobjs))
#####
# Handle options to gcc. Support building with separate output directory
-_hostc_flags = $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) \
+_hostc_flags = $(KBUILD_HOSTCFLAGS) $(HOST_EXTRACFLAGS) \
$(HOSTCFLAGS_$(basetarget).o)
-_hostcxx_flags = $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \
+_hostcxx_flags = $(KBUILD_HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \
$(HOSTCXXFLAGS_$(basetarget).o)
ifeq ($(KBUILD_SRC),)
@@ -84,17 +84,17 @@ hostcxx_flags = -Wp,-MD,$(depfile) $(__hostcxx_flags)
# Create executable from a single .c file
# host-csingle -> Executable
quiet_cmd_host-csingle = HOSTCC $@
- cmd_host-csingle = $(HOSTCC) $(hostc_flags) $(HOSTLDFLAGS) -o $@ $< \
- $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
+ cmd_host-csingle = $(HOSTCC) $(hostc_flags) $(KBUILD_HOSTLDFLAGS) -o $@ $< \
+ $(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(@F))
$(host-csingle): $(obj)/%: $(src)/%.c FORCE
$(call if_changed_dep,host-csingle)
# Link an executable based on list of .o files, all plain c
# host-cmulti -> executable
quiet_cmd_host-cmulti = HOSTLD $@
- cmd_host-cmulti = $(HOSTCC) $(HOSTLDFLAGS) -o $@ \
+ cmd_host-cmulti = $(HOSTCC) $(KBUILD_HOSTLDFLAGS) -o $@ \
$(addprefix $(obj)/,$($(@F)-objs)) \
- $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
+ $(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(@F))
$(host-cmulti): FORCE
$(call if_changed,host-cmulti)
$(call multi_depend, $(host-cmulti), , -objs)
@@ -109,10 +109,10 @@ $(host-cobjs): $(obj)/%.o: $(src)/%.c FORCE
# Link an executable based on list of .o files, a mixture of .c and .cc
# host-cxxmulti -> executable
quiet_cmd_host-cxxmulti = HOSTLD $@
- cmd_host-cxxmulti = $(HOSTCXX) $(HOSTLDFLAGS) -o $@ \
+ cmd_host-cxxmulti = $(HOSTCXX) $(KBUILD_HOSTLDFLAGS) -o $@ \
$(foreach o,objs cxxobjs,\
$(addprefix $(obj)/,$($(@F)-$(o)))) \
- $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
+ $(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(@F))
$(host-cxxmulti): FORCE
$(call if_changed,host-cxxmulti)
$(call multi_depend, $(host-cxxmulti), , -objs -cxxobjs)
@@ -143,9 +143,9 @@ $(host-cxxshobjs): $(obj)/%.o: $(src)/%.c FORCE
# Link a shared library, based on position independent .o files
# *.o -> .so shared library (host-cshlib)
quiet_cmd_host-cshlib = HOSTLLD -shared $@
- cmd_host-cshlib = $(HOSTCC) $(HOSTLDFLAGS) -shared -o $@ \
+ cmd_host-cshlib = $(HOSTCC) $(KBUILD_HOSTLDFLAGS) -shared -o $@ \
$(addprefix $(obj)/,$($(@F:.so=-objs))) \
- $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
+ $(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(@F))
$(host-cshlib): FORCE
$(call if_changed,host-cshlib)
$(call multi_depend, $(host-cshlib), .so, -objs)
@@ -153,9 +153,9 @@ $(call multi_depend, $(host-cshlib), .so, -objs)
# Link a shared library, based on position independent .o files
# *.o -> .so shared library (host-cxxshlib)
quiet_cmd_host-cxxshlib = HOSTLLD -shared $@
- cmd_host-cxxshlib = $(HOSTCXX) $(HOSTLDFLAGS) -shared -o $@ \
+ cmd_host-cxxshlib = $(HOSTCXX) $(KBUILD_HOSTLDFLAGS) -shared -o $@ \
$(addprefix $(obj)/,$($(@F:.so=-objs))) \
- $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
+ $(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(@F))
$(host-cxxshlib): FORCE
$(call if_changed,host-cxxshlib)
$(call multi_depend, $(host-cxxshlib), .so, -objs)
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 1bb594fcfe12ca0ee9604df66e56daed74d288e3..df0fff2526194d37641b4bf34a865c2a3a867635 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -162,7 +162,7 @@ a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
$(__cpp_flags)
-ld_flags = $(LDFLAGS) $(ldflags-y)
+ld_flags = $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F))
DTC_INCLUDE := $(srctree)/scripts/dtc/include-prefixes
@@ -225,8 +225,7 @@ $(obj)/%: $(src)/%_shipped
# ---------------------------------------------------------------------------
quiet_cmd_ld = LD $@
-cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \
- $(filter-out FORCE,$^) -o $@
+cmd_ld = $(LD) $(ld_flags) $(filter-out FORCE,$^) -o $@
# Objcopy
# ---------------------------------------------------------------------------
@@ -416,7 +415,7 @@ define filechk_offsets
echo " * This file was generated by Kbuild"; \
echo " */"; \
echo ""; \
- sed -ne $(sed-offsets); \
+ sed -ne $(sed-offsets) < $<; \
echo ""; \
echo "#endif" )
endef
diff --git a/scripts/basic/.gitignore b/scripts/basic/.gitignore
index 9528ec9e5adc4a89e901f3e9cdfe6140f8452573..a776371a350243330b14dc87b636146ba4ef2b16 100644
--- a/scripts/basic/.gitignore
+++ b/scripts/basic/.gitignore
@@ -1,2 +1 @@
fixdep
-bin2c
diff --git a/scripts/basic/Makefile b/scripts/basic/Makefile
index 0372b33febe52f74978420c2c559adef5e815374..af49b446f17db786b4315a225138065dec683a38 100644
--- a/scripts/basic/Makefile
+++ b/scripts/basic/Makefile
@@ -9,7 +9,6 @@
# fixdep: Used to generate dependency information during build process
hostprogs-y := fixdep
-hostprogs-$(CONFIG_BUILD_BIN2C) += bin2c
always := $(hostprogs-y)
# fixdep is needed to compile other host programs
diff --git a/scripts/basic/bin2c.c b/scripts/bin2c.c
similarity index 100%
rename from scripts/basic/bin2c.c
rename to scripts/bin2c.c
diff --git a/scripts/coccicheck b/scripts/coccicheck
index 9fedca611b7f8c7e7835a4ce36f793eb7ec41754..e04d328210ac2bd55c946230f2c8f3a9fc2ba38d 100755
--- a/scripts/coccicheck
+++ b/scripts/coccicheck
@@ -128,9 +128,10 @@ run_cmd_parmap() {
fi
echo $@ >>$DEBUG_FILE
$@ 2>>$DEBUG_FILE
- if [[ $? -ne 0 ]]; then
+ err=$?
+ if [[ $err -ne 0 ]]; then
echo "coccicheck failed"
- exit $?
+ exit $err
fi
}
diff --git a/scripts/coccinelle/api/atomic_as_refcounter.cocci b/scripts/coccinelle/api/atomic_as_refcounter.cocci
new file mode 100644
index 0000000000000000000000000000000000000000..988120e0fd67a073ed750a2469b92ff7f2d2662d
--- /dev/null
+++ b/scripts/coccinelle/api/atomic_as_refcounter.cocci
@@ -0,0 +1,129 @@
+// Check if refcount_t type and API should be used
+// instead of atomic_t type when dealing with refcounters
+//
+// Copyright (c) 2016-2017, Elena Reshetova, Intel Corporation
+//
+// Confidence: Moderate
+// URL: http://coccinelle.lip6.fr/
+// Options: --include-headers --very-quiet
+
+virtual report
+
+@r1 exists@
+identifier a, x;
+position p1, p2;
+identifier fname =~ ".*free.*";
+identifier fname2 =~ ".*destroy.*";
+identifier fname3 =~ ".*del.*";
+identifier fname4 =~ ".*queue_work.*";
+identifier fname5 =~ ".*schedule_work.*";
+identifier fname6 =~ ".*call_rcu.*";
+
+@@
+
+(
+ atomic_dec_and_test@p1(&(a)->x)
+|
+ atomic_dec_and_lock@p1(&(a)->x, ...)
+|
+ atomic_long_dec_and_lock@p1(&(a)->x, ...)
+|
+ atomic_long_dec_and_test@p1(&(a)->x)
+|
+ atomic64_dec_and_test@p1(&(a)->x)
+|
+ local_dec_and_test@p1(&(a)->x)
+)
+...
+(
+ fname@p2(a, ...);
+|
+ fname2@p2(...);
+|
+ fname3@p2(...);
+|
+ fname4@p2(...);
+|
+ fname5@p2(...);
+|
+ fname6@p2(...);
+)
+
+
+@script:python depends on report@
+p1 << r1.p1;
+p2 << r1.p2;
+@@
+msg = "atomic_dec_and_test variation before object free at line %s."
+coccilib.report.print_report(p1[0], msg % (p2[0].line))
+
+@r4 exists@
+identifier a, x, y;
+position p1, p2;
+identifier fname =~ ".*free.*";
+
+@@
+
+(
+ atomic_dec_and_test@p1(&(a)->x)
+|
+ atomic_dec_and_lock@p1(&(a)->x, ...)
+|
+ atomic_long_dec_and_lock@p1(&(a)->x, ...)
+|
+ atomic_long_dec_and_test@p1(&(a)->x)
+|
+ atomic64_dec_and_test@p1(&(a)->x)
+|
+ local_dec_and_test@p1(&(a)->x)
+)
+...
+y=a
+...
+fname@p2(y, ...);
+
+
+@script:python depends on report@
+p1 << r4.p1;
+p2 << r4.p2;
+@@
+msg = "atomic_dec_and_test variation before object free at line %s."
+coccilib.report.print_report(p1[0], msg % (p2[0].line))
+
+@r2 exists@
+identifier a, x;
+position p1;
+@@
+
+(
+atomic_add_unless(&(a)->x,-1,1)@p1
+|
+atomic_long_add_unless(&(a)->x,-1,1)@p1
+|
+atomic64_add_unless(&(a)->x,-1,1)@p1
+)
+
+@script:python depends on report@
+p1 << r2.p1;
+@@
+msg = "atomic_add_unless"
+coccilib.report.print_report(p1[0], msg)
+
+@r3 exists@
+identifier x;
+position p1;
+@@
+
+(
+x = atomic_add_return@p1(-1, ...);
+|
+x = atomic_long_add_return@p1(-1, ...);
+|
+x = atomic64_add_return@p1(-1, ...);
+)
+
+@script:python depends on report@
+p1 << r3.p1;
+@@
+msg = "x = atomic_add_return(-1, ...)"
+coccilib.report.print_report(p1[0], msg)
diff --git a/scripts/coccinelle/tests/doubletest.cocci b/scripts/coccinelle/tests/doubletest.cocci
index 78d74c22ca12da130c77702f98741fc4c89e3724..7af2ce7eb9bf78fd93955619e7a27ccd3162c94c 100644
--- a/scripts/coccinelle/tests/doubletest.cocci
+++ b/scripts/coccinelle/tests/doubletest.cocci
@@ -1,6 +1,7 @@
/// Find &&/|| operations that include the same argument more than once
-//# A common source of false positives is when the argument performs a side
-//# effect.
+//# A common source of false positives is when the expression, or
+//# another expresssion in the same && or || operation, performs a
+//# side effect.
///
// Confidence: Moderate
// Copyright: (C) 2010 Nicolas Palix, DIKU. GPLv2.
@@ -20,20 +21,37 @@ position p;
@@
(
-* E@p
- || ... || E
+ E@p || ... || E
|
-* E@p
- && ... && E
+ E@p && ... && E
)
-@script:python depends on org@
+@bad@
+expression r.E,e1,e2,fn;
+position r.p;
+assignment operator op;
+@@
+
+(
+E@p
+&
+ <+... \(fn(...)\|e1 op e2\|e1++\|e1--\|++e1\|--e1\) ...+>
+)
+
+@depends on context && !bad@
+expression r.E;
+position r.p;
+@@
+
+*E@p
+
+@script:python depends on org && !bad@
p << r.p;
@@
cocci.print_main("duplicated argument to && or ||",p)
-@script:python depends on report@
+@script:python depends on report && !bad@
p << r.p;
@@
diff --git a/scripts/depmod.sh b/scripts/depmod.sh
index 1a6f85e0e6e15731367fe4696129d0d5d91f1a0a..999d585eaa7358dd813b8b0d5a204fc1ea48ca3c 100755
--- a/scripts/depmod.sh
+++ b/scripts/depmod.sh
@@ -10,10 +10,16 @@ fi
DEPMOD=$1
KERNELRELEASE=$2
-if ! test -r System.map -a -x "$DEPMOD"; then
+if ! test -r System.map ; then
exit 0
fi
+if [ -z $(command -v $DEPMOD) ]; then
+ echo "'make modules_install' requires $DEPMOD. Please install it." >&2
+ echo "This is probably in the kmod package." >&2
+ exit 1
+fi
+
# older versions of depmod require the version string to start with three
# numbers, so we cheat with a symlink here
depmod_hack_needed=true
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index a3ac2c91331c73e96edc6351177be5508b6713d7..f3c0e6261e2a64c25c5cf7f60afb72da4d38092d 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -169,7 +169,7 @@ HOSTCFLAGS_zconf.tab.o := -I$(src)
hostprogs-y += nconf
nconf-objs := nconf.o zconf.tab.o nconf.gui.o
-HOSTLOADLIBES_nconf = $(shell . $(obj)/.nconf-cfg && echo $$libs)
+HOSTLDLIBS_nconf = $(shell . $(obj)/.nconf-cfg && echo $$libs)
HOSTCFLAGS_nconf.o = $(shell . $(obj)/.nconf-cfg && echo $$cflags)
HOSTCFLAGS_nconf.gui.o = $(shell . $(obj)/.nconf-cfg && echo $$cflags)
@@ -180,7 +180,7 @@ hostprogs-y += mconf
lxdialog := checklist.o inputbox.o menubox.o textbox.o util.o yesno.o
mconf-objs := mconf.o zconf.tab.o $(addprefix lxdialog/, $(lxdialog))
-HOSTLOADLIBES_mconf = $(shell . $(obj)/.mconf-cfg && echo $$libs)
+HOSTLDLIBS_mconf = $(shell . $(obj)/.mconf-cfg && echo $$libs)
$(foreach f, mconf.o $(lxdialog), \
$(eval HOSTCFLAGS_$f = $$(shell . $(obj)/.mconf-cfg && echo $$$$cflags)))
@@ -191,7 +191,7 @@ hostprogs-y += qconf
qconf-cxxobjs := qconf.o
qconf-objs := zconf.tab.o
-HOSTLOADLIBES_qconf = $(shell . $(obj)/.qconf-cfg && echo $$libs)
+HOSTLDLIBS_qconf = $(shell . $(obj)/.qconf-cfg && echo $$libs)
HOSTCXXFLAGS_qconf.o = $(shell . $(obj)/.qconf-cfg && echo $$cflags)
$(obj)/qconf.o: $(obj)/.qconf-cfg $(obj)/qconf.moc
@@ -206,7 +206,7 @@ $(obj)/%.moc: $(src)/%.h $(obj)/.qconf-cfg
hostprogs-y += gconf
gconf-objs := gconf.o zconf.tab.o
-HOSTLOADLIBES_gconf = $(shell . $(obj)/.gconf-cfg && echo $$libs)
+HOSTLDLIBS_gconf = $(shell . $(obj)/.gconf-cfg && echo $$libs)
HOSTCFLAGS_gconf.o = $(shell . $(obj)/.gconf-cfg && echo $$cflags)
$(obj)/gconf.o: $(obj)/.gconf-cfg
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 1663fb19343a46fff9f4c23b6fda2a56ebce3190..dc6d714e4dcb310817de378ec88e136263ab8030 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -2125,10 +2125,13 @@ static int check_modname_len(struct module *mod)
**/
static void add_header(struct buffer *b, struct module *mod)
{
+ buf_printf(b, "#include <linux/build-salt.h>\n");
buf_printf(b, "#include <linux/module.h>\n");
buf_printf(b, "#include <linux/vermagic.h>\n");
buf_printf(b, "#include <linux/compiler.h>\n");
buf_printf(b, "\n");
+ buf_printf(b, "BUILD_SALT;\n");
+ buf_printf(b, "\n");
buf_printf(b, "MODULE_INFO(vermagic, VERMAGIC_STRING);\n");
buf_printf(b, "MODULE_INFO(name, KBUILD_MODNAME);\n");
buf_printf(b, "\n");
diff --git a/scripts/package/buildtar b/scripts/package/buildtar
index e8cc72a51b32e230833ca64a6e48b8cf7a716363..d624a07a4e77abf000fd7323138f6556fbedf034 100755
--- a/scripts/package/buildtar
+++ b/scripts/package/buildtar
@@ -84,10 +84,6 @@ case "${ARCH}" in
[ -f "${KBUILD_IMAGE}" ] && cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
[ -f "${objtree}/lifimage" ] && cp -v -- "${objtree}/lifimage" "${tmpdir}/boot/lifimage-${KERNELRELEASE}"
;;
- vax)
- [ -f "${objtree}/vmlinux.SYS" ] && cp -v -- "${objtree}/vmlinux.SYS" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}.SYS"
- [ -f "${objtree}/vmlinux.dsk" ] && cp -v -- "${objtree}/vmlinux.dsk" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}.dsk"
- ;;
mips)
if [ -f "${objtree}/arch/mips/boot/compressed/vmlinux.bin" ]; then
cp -v -- "${objtree}/arch/mips/boot/compressed/vmlinux.bin" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
@@ -109,6 +105,14 @@ case "${ARCH}" in
cp -v -- "${objtree}/vmlinux" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
fi
;;
+ arm64)
+ for i in Image.bz2 Image.gz Image.lz4 Image.lzma Image.lzo ; do
+ if [ -f "${objtree}/arch/arm64/boot/${i}" ] ; then
+ cp -v -- "${objtree}/arch/arm64/boot/${i}" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
+ break
+ fi
+ done
+ ;;
*)
[ -f "${KBUILD_IMAGE}" ] && cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinux-kbuild-${KERNELRELEASE}"
echo "" >&2
diff --git a/scripts/package/mkdebian b/scripts/package/mkdebian
index 985d72d1ab341106a70db1f2b0963c67d60d64b7..663a7f343b42c5417e4769a8da65754fd6eab859 100755
--- a/scripts/package/mkdebian
+++ b/scripts/package/mkdebian
@@ -6,49 +6,81 @@
set -e
+is_enabled() {
+ grep -q "^CONFIG_$1=y" $KCONFIG_CONFIG
+}
+
+if_enabled_echo() {
+ if is_enabled "$1"; then
+ echo -n "$2"
+ elif [ $# -ge 3 ]; then
+ echo -n "$3"
+ fi
+}
+
set_debarch() {
+ if [ -n "$KBUILD_DEBARCH" ] ; then
+ debarch="$KBUILD_DEBARCH"
+ return
+ fi
+
# Attempt to find the correct Debian architecture
case "$UTS_MACHINE" in
- i386|ia64|alpha)
+ i386|ia64|alpha|m68k|riscv*)
debarch="$UTS_MACHINE" ;;
x86_64)
debarch=amd64 ;;
sparc*)
- debarch=sparc ;;
+ debarch=sparc$(if_enabled_echo 64BIT 64) ;;
s390*)
- debarch=s390$(grep -q CONFIG_64BIT=y $KCONFIG_CONFIG && echo x || true) ;;
+ debarch=s390x ;;
ppc*)
- debarch=$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo ppc64el || echo powerpc) ;;
+ if is_enabled 64BIT; then
+ debarch=ppc64$(if_enabled_echo CPU_LITTLE_ENDIAN el)
+ else
+ debarch=powerpc$(if_enabled_echo SPE spe)
+ fi
+ ;;
parisc*)
debarch=hppa ;;
mips*)
- debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo el || true) ;;
+ if is_enabled CPU_LITTLE_ENDIAN; then
+ debarch=mips$(if_enabled_echo 64BIT 64)$(if_enabled_echo CPU_MIPSR6 r6)el
+ elif is_enabled CPU_MIPSR6; then
+ debarch=mips$(if_enabled_echo 64BIT 64)r6
+ else
+ debarch=mips
+ fi
+ ;;
aarch64|arm64)
debarch=arm64 ;;
arm*)
- if grep -q CONFIG_AEABI=y $KCONFIG_CONFIG; then
- if grep -q CONFIG_VFP=y $KCONFIG_CONFIG; then
- debarch=armhf
- else
- debarch=armel
- fi
+ if is_enabled AEABI; then
+ debarch=arm$(if_enabled_echo VFP hf el)
else
- debarch=arm
+ debarch=arm
+ fi
+ ;;
+ openrisc)
+ debarch=or1k ;;
+ sh)
+ if is_enabled CPU_SH3; then
+ debarch=sh3$(if_enabled_echo CPU_BIG_ENDIAN eb)
+ elif is_enabled CPU_SH4; then
+ debarch=sh4$(if_enabled_echo CPU_BIG_ENDIAN eb)
fi
;;
- *)
- debarch=$(dpkg --print-architecture)
+ esac
+ if [ -z "$debarch" ]; then
+ debarch=$(dpkg-architecture -qDEB_HOST_ARCH)
echo "" >&2
echo "** ** ** WARNING ** ** **" >&2
echo "" >&2
echo "Your architecture doesn't have its equivalent" >&2
echo "Debian userspace architecture defined!" >&2
- echo "Falling back to using your current userspace instead!" >&2
+ echo "Falling back to the current host architecture ($debarch)." >&2
echo "Please add support for $UTS_MACHINE to ${0} ..." >&2
echo "" >&2
- esac
- if [ -n "$KBUILD_DEBARCH" ] ; then
- debarch="$KBUILD_DEBARCH"
fi
}
diff --git a/scripts/tracing/draw_functrace.py b/scripts/tracing/draw_functrace.py
index db40fa04cd513f4a68d86af935fec02f27e507d2..9b6dd4f36335b352e89d181f21e0ece522765813 100755
--- a/scripts/tracing/draw_functrace.py
+++ b/scripts/tracing/draw_functrace.py
@@ -123,7 +123,7 @@ def main():
tree = tree.getParent(caller)
tree = tree.calls(callee, calltime)
- print CallTree.ROOT
+ print(CallTree.ROOT)
if __name__ == "__main__":
main()
diff --git a/security/tomoyo/Makefile b/security/tomoyo/Makefile
index b7c6a7ffc058b42279dd224ca7efc6d42f1859ea..cca5a3012fee2e564ffa0ae293d1e8e223d80689 100644
--- a/security/tomoyo/Makefile
+++ b/security/tomoyo/Makefile
@@ -4,7 +4,7 @@ obj-y = audit.o common.o condition.o domain.o environ.o file.o gc.o group.o load
targets += builtin-policy.h
define do_policy
echo "static char tomoyo_builtin_$(1)[] __initdata ="; \
-$(objtree)/scripts/basic/bin2c <$(firstword $(wildcard $(obj)/policy/$(1).conf $(srctree)/$(src)/policy/$(1).conf.default) /dev/null); \
+$(objtree)/scripts/bin2c <$(firstword $(wildcard $(obj)/policy/$(1).conf $(srctree)/$(src)/policy/$(1).conf.default) /dev/null); \
echo ";"
endef
quiet_cmd_policy = POLICY $@
diff --git a/tools/build/Build.include b/tools/build/Build.include
index 950c1504ca37ecda43542a46730fe805a0f05866..9ec01f4454f9f41da8892ad44493273ccf6bd8d6 100644
--- a/tools/build/Build.include
+++ b/tools/build/Build.include
@@ -98,4 +98,4 @@ cxx_flags = -Wp,-MD,$(depfile) -Wp,-MT,$@ $(CXXFLAGS) -D"BUILD_STR(s)=\#s" $(CXX
###
## HOSTCC C flags
-host_c_flags = -Wp,-MD,$(depfile) -Wp,-MT,$@ $(HOSTCFLAGS) -D"BUILD_STR(s)=\#s" $(HOSTCFLAGS_$(basetarget).o) $(HOSTCFLAGS_$(obj))
+host_c_flags = -Wp,-MD,$(depfile) -Wp,-MT,$@ $(KBUILD_HOSTCFLAGS) -D"BUILD_STR(s)=\#s" $(HOSTCFLAGS_$(basetarget).o) $(HOSTCFLAGS_$(obj))
diff --git a/tools/build/Makefile b/tools/build/Makefile
index 5edf65e684ab70bb65bfd0e8dc821a61b605be6f..727050c40f0961c219e6b8e6138df5a7edd17905 100644
--- a/tools/build/Makefile
+++ b/tools/build/Makefile
@@ -43,7 +43,7 @@ $(OUTPUT)fixdep-in.o: FORCE
$(Q)$(MAKE) $(build)=fixdep
$(OUTPUT)fixdep: $(OUTPUT)fixdep-in.o
- $(QUIET_LINK)$(HOSTCC) $(HOSTLDFLAGS) -o $@ $<
+ $(QUIET_LINK)$(HOSTCC) $(KBUILD_HOSTLDFLAGS) -o $@ $<
FORCE:
diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index f76d9914686a238a976b7230b4c21b9a20092fbe..c9d038f91af6b345044bb116680a66f140d2ead1 100644
--- a/tools/objtool/Makefile
+++ b/tools/objtool/Makefile
@@ -31,8 +31,8 @@ INCLUDES := -I$(srctree)/tools/include \
-I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
-I$(srctree)/tools/objtool/arch/$(ARCH)/include
WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed
-CFLAGS += -Werror $(WARNINGS) $(HOSTCFLAGS) -g $(INCLUDES)
-LDFLAGS += -lelf $(LIBSUBCMD) $(HOSTLDFLAGS)
+CFLAGS += -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES)
+LDFLAGS += -lelf $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS)
# Allow old libelf to be used:
elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr)