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Kbuild updates for v4.19

Browse Source 
- verify depmod is installed before modules_install
 
 - support build salt in case build ids must be unique between builds
 
 - allow users to specify additional host compiler flags via HOST*FLAGS,
   and rename internal variables to KBUILD_HOST*FLAGS
 
 - update buildtar script to drop vax support, add arm64 support
 
 - update builddeb script for better debarch support
 
 - document the pit-fall of if_changed usage
 
 - fix parallel build of UML with O= option
 
 - make 'samples' target depend on headers_install to fix build errors
 
 - remove deprecated host-progs variable
 
 - add a new coccinelle script for refcount_t vs atomic_t check
 
 - improve double-test coccinelle script
 
 - misc cleanups and fixes
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Merge tag 'kbuild-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - verify depmod is installed before modules_install

 - support build salt in case build ids must be unique between builds

 - allow users to specify additional host compiler flags via HOST*FLAGS,
   and rename internal variables to KBUILD_HOST*FLAGS

 - update buildtar script to drop vax support, add arm64 support

 - update builddeb script for better debarch support

 - document the pit-fall of if_changed usage

 - fix parallel build of UML with O= option

 - make 'samples' target depend on headers_install to fix build errors

 - remove deprecated host-progs variable

 - add a new coccinelle script for refcount_t vs atomic_t check

 - improve double-test coccinelle script

 - misc cleanups and fixes

* tag 'kbuild-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (41 commits)
  coccicheck: return proper error code on fail
  Coccinelle: doubletest: reduce side effect false positives
  kbuild: remove deprecated host-progs variable
  kbuild: make samples really depend on headers_install
  um: clean up archheaders recipe
  kbuild: add %asm-generic to no-dot-config-targets
  um: fix parallel building with O= option
  scripts: Add Python 3 support to tracing/draw_functrace.py
  builddeb: Add automatic support for sh{3,4}{,eb} architectures
  builddeb: Add automatic support for riscv* architectures
  builddeb: Add automatic support for m68k architecture
  builddeb: Add automatic support for or1k architecture
  builddeb: Add automatic support for sparc64 architecture
  builddeb: Add automatic support for mips{,64}r6{,el} architectures
  builddeb: Add automatic support for mips64el architecture
  builddeb: Add automatic support for ppc64 and powerpcspe architectures
  builddeb: Introduce functions to simplify kconfig tests in set_debarch
  builddeb: Drop check for 32-bit s390
  builddeb: Change architecture detection fallback to use dpkg-architecture
  builddeb: Skip architecture detection when KBUILD_DEBARCH is set
  ...
This commit is contained in:
Linus Torvalds 2018-08-15 12:09:03 -07:00
commit e026bcc561
51 changed files with 373 additions and 169 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
Documentation/kbuild/kbuild.txt
View File

@ -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

8
Documentation/kbuild/makefiles.txt
View File

@ -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.

19
Documentation/process/changes.rst
View File

@ -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
--------

24
Makefile
View File

@ -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)

2
arch/alpha/boot/Makefile
View File

@ -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.

3
arch/arm/Makefile
View File

@ -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

25
arch/arm/mach-at91/Makefile
View File

@ -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)

3
arch/arm64/kernel/vdso/note.S
View File

@ -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

1
arch/openrisc/Makefile
View File

@ -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)

3
arch/powerpc/kernel/vdso32/note.S
View File

@ -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

3
arch/powerpc/purgatory/Makefile
View File

@ -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)

1
arch/riscv/Makefile
View File

@ -8,7 +8,6 @@
# for more details.
#
LDFLAGS :=
OBJCOPYFLAGS := -O binary
LDFLAGS_vmlinux :=
ifeq ($(CONFIG_DYNAMIC_FTRACE),y)

6
arch/s390/kernel/syscalls/Makefile
View File

@ -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

3
arch/s390/purgatory/Makefile
View File

@ -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)

11
arch/um/Makefile
View File

@ -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

4
arch/um/drivers/Makefile
View File

@ -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.

2
arch/x86/Makefile.um
View File

@ -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

3
arch/x86/entry/vdso/vdso-note.S
View File

@ -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

3
arch/x86/entry/vdso/vdso32/note.S
View File

@ -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

3
arch/x86/purgatory/Makefile
View File

@ -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)

3
arch/xtensa/boot/Makefile
View File

@ -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

20
include/linux/build-salt.h Normal file
View File

@ -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 */

9
init/Kconfig
View File

@ -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

3
init/version.c
View File

@ -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;

2
kernel/Makefile
View File

@ -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)

4
net/bpfilter/Makefile
View File

@ -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

22
samples/bpf/Makefile
View File

@ -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

6
samples/seccomp/Makefile
View File

@ -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

1
scripts/.gitignore vendored
View File

@ -1,6 +1,7 @@
#
# Generated files
#
bin2c
conmakehash
kallsyms
pnmtologo

4
scripts/Kbuild.include
View File

@ -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)

5
scripts/Makefile
View File

@ -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)

7
scripts/Makefile.build
View File

@ -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

1
scripts/Makefile.clean
View File

@ -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)

24
scripts/Makefile.host
View File

@ -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)

7
scripts/Makefile.lib
View File

@ -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

1
scripts/basic/.gitignore vendored
View File

@ -1,2 +1 @@
fixdep
bin2c

1
scripts/basic/Makefile
View File

@ -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

0
scripts/basic/bin2c.c → scripts/bin2c.c
View File

5
scripts/coccicheck
View File

@ -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
}

129
scripts/coccinelle/api/atomic_as_refcounter.cocci Normal file
View File

@ -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)

34
scripts/coccinelle/tests/doubletest.cocci
View File

@ -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;
@@

8
scripts/depmod.sh
View File

@ -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

8
scripts/kconfig/Makefile
View File

@ -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

3
scripts/mod/modpost.c
View File

@ -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");

12
scripts/package/buildtar
View File

@ -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

68
scripts/package/mkdebian
View File

@ -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
;;
*)
debarch=$(dpkg --print-architecture)
openrisc)
debarch=or1k ;;
sh)
if is_enabled CPU_SH3; then
debarch=sh3$(if_enabled_echo CPU_BIG_ENDIAN eb)
elif is_enabled CPU_SH4; then
debarch=sh4$(if_enabled_echo CPU_BIG_ENDIAN eb)
fi
;;
esac
if [ -z "$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
}

2
scripts/tracing/draw_functrace.py
View File

@ -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()

2
security/tomoyo/Makefile
View File

@ -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 $@

2
tools/build/Build.include
View File

@ -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))

2
tools/build/Makefile
View File

@ -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:

4
tools/objtool/Makefile
View File

@ -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)