21 Aug, 2017
1 commit
14 Aug, 2017
1 commit
07 Aug, 2017
1 commit
31 Jul, 2017
1 commit
24 Jul, 2017
1 commit
16 Jul, 2017
1 commit
14 Jul, 2017
1 commit
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Pull more Kbuild updates from Masahiro Yamada:
- Move generic-y of exported headers to uapi/asm/Kbuild for complete
de-coupling of UAPI- Clean up scripts/Makefile.headersinst
- Fix host programs for 32 bit machine with XFS file system
* tag 'kbuild-v4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (29 commits)
kbuild: Enable Large File Support for hostprogs
kbuild: remove wrapper files handling from Makefile.headersinst
kbuild: split exported generic header creation into uapi-asm-generic
kbuild: do not include old-kbuild-file from Makefile.headersinst
xtensa: move generic-y of exported headers to uapi/asm/Kbuild
unicore32: move generic-y of exported headers to uapi/asm/Kbuild
tile: move generic-y of exported headers to uapi/asm/Kbuild
sparc: move generic-y of exported headers to uapi/asm/Kbuild
sh: move generic-y of exported headers to uapi/asm/Kbuild
parisc: move generic-y of exported headers to uapi/asm/Kbuild
openrisc: move generic-y of exported headers to uapi/asm/Kbuild
nios2: move generic-y of exported headers to uapi/asm/Kbuild
nios2: remove unneeded arch/nios2/include/(generated/)asm/signal.h
microblaze: move generic-y of exported headers to uapi/asm/Kbuild
metag: move generic-y of exported headers to uapi/asm/Kbuild
m68k: move generic-y of exported headers to uapi/asm/Kbuild
m32r: move generic-y of exported headers to uapi/asm/Kbuild
ia64: remove redundant generic-y += kvm_para.h from asm/Kbuild
hexagon: move generic-y of exported headers to uapi/asm/Kbuild
h8300: move generic-y of exported headers to uapi/asm/Kbuild
...
13 Jul, 2017
1 commit
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I made the mistake of upgrading my desktop to the new Fedora 26 that
comes with gcc-7.1.1.There's nothing wrong per se that I've noticed, but I now have 1500
lines of warnings, mostly from the new format-truncation warning
triggering all over the tree.We use 'snprintf()' and friends in a lot of places, and often know that
the numbers are fairly small (ie a controller index or similar), but gcc
doesn't know that, and sees an 'int', and thinks that it could be some
huge number. And then complains when our buffers are not able to fit
the name for the ten millionth controller.These warnings aren't necessarily bad per se, and we probably want to
look through them subsystem by subsystem, but at least during the merge
window they just mean that I can't even see if somebody is introducing
any *real* problems when I pull.So warnings disabled for now.
Signed-off-by: Linus Torvalds
11 Jul, 2017
2 commits
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This fixes the following build error for me when building on an 32 bit
machine using an XFS file system:$ make scripts/basic/fixdep
HOSTCC scripts/basic/fixdep
fixdep: error fstat'ing depfile: scripts/basic/.fixdep.d: Value too large for defined data typeSigned-off-by: Uwe Kleine-König
Acked-by: Ben Hutchings
Signed-off-by: Masahiro Yamada -
When we install headers, we are interested only in headers under uapi
directories. Split out uapi-asm-generic target and make headers_install
depend on it. It will avoid generating unneeded asm-generic wrappers.Signed-off-by: Masahiro Yamada
10 Jul, 2017
2 commits
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We can always pass dst= from the top Makefile. This will simplify
the logic in Makefile.headersinst.Signed-off-by: Masahiro Yamada
-
Commit 61562f981e92 ("uapi: export all arch specifics directories")
changed the dst from asm- to arch- for headers_install_all
or headers_check_all. Update the comment.Signed-off-by: Masahiro Yamada
08 Jul, 2017
2 commits
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…/masahiroy/linux-kbuild
Pull Kbuild thin archives updates from Masahiro Yamada:
"Thin archives migration by Nicholas Piggin.THIN_ARCHIVES has been available for a while as an optional feature
only for PowerPC architecture, but we do not need two different
intermediate-artifact schemes.Using thin archives instead of conventional incremental linking has
various advantages:- save disk space for builds
- speed-up building a little
- fix some link issues (for example, allyesconfig on ARM) due to more
flexibility for the final linking- work better with dead code elimination we are planning
As discussed before, this migration has been done unconditionally so
that any problems caused by this will show up with "git bisect".With testing with 0-day and linux-next, some architectures actually
showed up problems, but they were trivial and all fixed now"* tag 'kbuild-thinar-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
tile: remove unneeded extra-y in Makefile
kbuild: thin archives make default for all archs
x86/um: thin archives build fix
tile: thin archives fix linking
ia64: thin archives fix linking
sh: thin archives fix linking
kbuild: handle libs-y archives separately from built-in.o archives
kbuild: thin archives use P option to ar
kbuild: thin archives final link close --whole-archives option
ia64: remove unneeded extra-y in Makefile.gate
tile: fix dependency and .*.cmd inclusion for incremental build
sparc64: Use indirect calls in hamming weight stubs -
Pull Kbuild updates from Masahiro Yamada:
- Clean up Makefiles and scripts
- Improve clang support
- Remove unneeded genhdr-y syntax
- Remove unneeded cc-option-align macro
- Introduce __cc-option macro and use it to fix x86 boot code compiler
flags* tag 'kbuild-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: improve comments on KBUILD_SRC
x86/build: Specify stack alignment for clang
x86/build: Use __cc-option for boot code compiler options
kbuild: Add __cc-option macro
kbuild: remove cc-option-align
kbuild: replace genhdr-y with generated-y
kbuild: clang: Disable 'address-of-packed-member' warning
kbuild: remove duplicated arch/*/include/generated/uapi include path
kbuild: speed up checksyscalls.sh
kbuild: simplify silent build (-s) detection
04 Jul, 2017
1 commit
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Pull documentation updates from Jonathan Corbet:
"There has been a fair amount of activity in the docs tree this time
around. Highlights include:- Conversion of a bunch of security documentation into RST
- The conversion of the remaining DocBook templates by The Amazing
Mauro Machine. We can now drop the entire DocBook build chain.- The usual collection of fixes and minor updates"
* tag 'docs-4.13' of git://git.lwn.net/linux: (90 commits)
scripts/kernel-doc: handle DECLARE_HASHTABLE
Documentation: atomic_ops.txt is core-api/atomic_ops.rst
Docs: clean up some DocBook loose ends
Make the main documentation title less Geocities
Docs: Use kernel-figure in vidioc-g-selection.rst
Docs: fix table problems in ras.rst
Docs: Fix breakage with Sphinx 1.5 and upper
Docs: Include the Latex "ifthen" package
doc/kokr/howto: Only send regression fixes after -rc1
docs-rst: fix broken links to dynamic-debug-howto in kernel-parameters
doc: Document suitability of IBM Verse for kernel development
Doc: fix a markup error in coding-style.rst
docs: driver-api: i2c: remove some outdated information
Documentation: DMA API: fix a typo in a function name
Docs: Insert missing space to separate link from text
doc/ko_KR/memory-barriers: Update control-dependencies example
Documentation, kbuild: fix typo "minimun" -> "minimum"
docs: Fix some formatting issues in request-key.rst
doc: ReSTify keys-trusted-encrypted.txt
doc: ReSTify keys-request-key.txt
...
03 Jul, 2017
2 commits
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Original comments is confusing on "OBJ directory", make it clear.
Bonus: move comments close to what it wants to comment.Signed-off-by: Cao jin
Signed-off-by: Masahiro Yamada
30 Jun, 2017
1 commit
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The thin archives build currently puts all lib.a and built-in.o
files together and links them with --whole-archive.This works because thin archives can recursively refer to thin
archives. However some architectures include libgcc.a, which may
not be a thin archive, or it may not be constructed with the "P"
option, in which case its contents do not get linked correctly.So don't pull .a libs into the root built-in.o archive. These
libs should already have symbol tables and indexes built, so they
can be direct linker inputs. Move them out of the --whole-archive
option, which restore the conditional linking behaviour of lib.a
to thin archives builds.Signed-off-by: Nicholas Piggin
Signed-off-by: Masahiro Yamada
26 Jun, 2017
1 commit
25 Jun, 2017
2 commits
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cc-option uses KBUILD_CFLAGS and KBUILD_CPPFLAGS when it determines
whether an option is supported or not. This is fine for options used to
build the kernel itself, however some components like the x86 boot code
use a different set of flags.Add the new macro __cc-option which is a more generic version of
cc-option with additional parameters. One parameter is the compiler
with which the check should be performed, the other the compiler options
to be used instead KBUILD_C*FLAGS.Refactor cc-option and hostcc-option to use __cc-option and move
hostcc-option to scripts/Kbuild.include.Suggested-by: Arnd Bergmann
Suggested-by: Masahiro Yamada
Signed-off-by: Matthias Kaehlcke
Acked-by: Arnd Bergmann
Acked-by: Michal Marek
Signed-off-by: Masahiro Yamada -
…t/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
"Nothing scary, just some random fixes:- fix warnings of host programs
- fix "make tags" when COMPILED_SOURCE=1 is specified along with O=
- clarify help message of C=1 option
- fix dependency for ncurses compatibility check
- fix "make headers_install" for fakechroot environment"
* tag 'kbuild-fixes-v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: fix sparse warnings in nconfig
kbuild: fix header installation under fakechroot environment
kconfig: Check for libncurses before menuconfig
Kbuild: tiny correction on `make help`
tags: honor COMPILED_SOURCE with apart output directory
genksyms: add printf format attribute to error_with_pos()
24 Jun, 2017
1 commit
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There were a few bits and pieces left over from the now-disused DocBook
toolchain; git rid of them.Reported-by: Markus Heiser
Signed-off-by: Jonathan Corbet
22 Jun, 2017
1 commit
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clang generates plenty of these warnings in different parts of the code,
to an extent that the warnings are little more than noise. Disable the
'address-of-packed-member' warning.Signed-off-by: Matthias Kaehlcke
Reviewed-by: Douglas Anderson
Signed-off-by: Masahiro Yamada
19 Jun, 2017
1 commit
12 Jun, 2017
1 commit
10 Jun, 2017
1 commit
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Commit 90ac086bca10 ("Makefile: include arch/*/include/generated/uapi
before .../generated") introduced this for bisect'ability. The commit
chose to promote arch/*/include/generated/uapi in the search path
rather than cleaning stale headers.After all, we found that approach was not enough, and ended up with
cleaning stale headers by commit cda2c65f981d ("kbuild: Remove stale
asm-generic wrappers").So, the extra search path is no longer needed because Kbuild invokes
scripts/Makefile.asm-generic and remove stale headers before it starts
descending.This commit is also reverting commit dc33db7c338e ("Kbuild: avoid
duplicate include path") because we have no more duplicated path.Signed-off-by: Masahiro Yamada
06 Jun, 2017
2 commits
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The help info of `make C=1` is little confusing, make it clear.
Signed-off-by: Cao jin
Signed-off-by: Masahiro Yamada -
This allows to detect -s (--silent) option without checking GNU Make
version.As commit e36aaea28972 ("kbuild: Fix silent builds with make-4")
pointed out, GNU Make 4.x changed the way/order it presents the
command line options into MAKEFLAGS.In Make 3.8x, 's' is always the first in a group of short options.
The group may be prefixed with '-' in some cases.In Make 4.x, 's' is always the last in a group of short options.
As commit e6ac89fabd03 ("kbuild: Correctly deal with make options
which contain an 's'") addressed, we also need to deal with long
options that contain 's', like --warn-undefined-variables.Test cases:
[1] command line input: make --silent
-> MAKEFLAGS for Make 3.8x: s
-> MAKEFLAGS for Make 4.x : s[2] command line input: make -srR
-> MAKEFLAGS for Make 3.8x: sRr
-> MAKEFLAGS for Make 4.x : rRs[3] command line input: make -s -rR --warn-undefined-variables
-> MAKEFLAGS for Make 3.8x: --warn-undefined-variables -sRr
-> MAKEFLAGS for Make 4.x : rRs --warn-undefined-variablesMy idea to cater to all the cases more easily is to filter out long
options (--%), then search 's' with $(findstring ...). This way will
be more future-proof even if future versions of Make put 's' in the
middle of the group.Signed-off-by: Masahiro Yamada
05 Jun, 2017
1 commit
29 May, 2017
1 commit
22 May, 2017
1 commit
19 May, 2017
1 commit
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Mauro says:
This patch series convert the remaining DocBooks to ReST.
The first version was originally
send as 3 patch series:[PATCH 00/36] Convert DocBook documents to ReST
[PATCH 0/5] Convert more books to ReST
[PATCH 00/13] Get rid of DocBookThe lsm book was added as if it were a text file under
Documentation. The plan is to merge it with another file
under Documentation/security, after both this series and
a security Documentation patch series gets merged.It also adjusts some Sphinx-pedantic errors/warnings on
some kernel-doc markups.I also added some patches here to add PDF output for all
existing ReST books.
18 May, 2017
1 commit
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Since commit 61562f981e92 ("uapi: export all arch specifics
directories"), "make INSTALL_HDR_PATH=$root/usr headers_install"
deletes standard glibc headers and others in $(root)/usr/include.The cause of the issue is that headers_install now starts descending
from arch/$(hdr-arch)/include/uapi with $(root)/usr/include for its
destination when installing asm headers. So, headers already there
are assumed to be unwanted.When headers_install starts descending from include/uapi with
$(root)/usr/include for its destination, it works around the problem
by creating an dummy destination $(root)/usr/include/uapi, but this
is tricky.To fix the problem in a clean way is to skip headers install/check
in include/uapi and arch/$(hdr-arch)/include/uapi because we know
there are only sub-directories in uapi directories. A good side
effect is the empty destination $(root)/usr/include/uapi will go
away.I am also removing the trailing slash in the headers_check target to
skip checking in arch/$(hdr-arch)/include/uapi.Fixes: 61562f981e92 ("uapi: export all arch specifics directories")
Reported-by: Dan Williams
Signed-off-by: Masahiro Yamada
Tested-by: Dan Williams
Acked-by: Nicolas Dichtel
16 May, 2017
1 commit
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Now that we don't have any DocBook anymore, remove it from
the building system.Signed-off-by: Mauro Carvalho Chehab
14 May, 2017
1 commit
11 May, 2017
2 commits
-
…asahiroy/linux-kbuild
Pull Kbuild UAPI updates from Masahiro Yamada:
"Improvement of headers_install by Nicolas Dichtel.It has been long since the introduction of uapi directories, but the
de-coupling of exported headers has not been completed. Headers listed
in header-y are exported whether they exist in uapi directories or
not. His work fixes this inconsistency.All (and only) headers under uapi directories are now exported. The
asm-generic wrappers are still exceptions, but this is a big step
forward"* tag 'kbuild-uapi-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
arch/include: remove empty Kbuild files
uapi: export all arch specifics directories
uapi: export all headers under uapi directories
smc_diag.h: fix include from userland
btrfs_tree.h: fix include from userland
uapi: includes linux/types.h before exporting files
Makefile.headersinst: remove destination-y option
Makefile.headersinst: cleanup input files
x86: stop exporting msr-index.h to userland
nios2: put setup.h in uapi
h8300: put bitsperlong.h in uapi -
Pull Kbuild updates from Masahiro Yamada:
- improve Clang support
- clean up various Makefiles
- improve build log visibility (objtool, alpha, ia64)
- improve compiler flag evaluation for better build performance
- fix GCC version-dependent warning
- fix genksyms
* tag 'kbuild-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (23 commits)
kbuild: dtbinst: remove unnecessary __dtbs_install_prep target
ia64: beatify build log for gate.so and gate-syms.o
alpha: make short build log available for division routines
alpha: merge build rules of division routines
alpha: add $(src)/ rather than $(obj)/ to make source file path
Makefile: evaluate LDFLAGS_BUILD_ID only once
objtool: make it visible in make V=1 output
kbuild: clang: add -no-integrated-as to KBUILD_[AC]FLAGS
kbuild: Add support to generate LLVM assembly files
kbuild: Add better clang cross build support
kbuild: drop -Wno-unknown-warning-option from clang options
kbuild: fix asm-offset generation to work with clang
kbuild: consolidate redundant sed script ASM offset generation
frv: Use OFFSET macro in DEF_*REG()
kbuild: avoid conflict between -ffunction-sections and -pg on gcc-4.7
kbuild: Consolidate header generation from ASM offset information
kbuild: use -Oz instead of -Os when using clang
kbuild, LLVMLinux: Add -Werror to cc-option to support clang
Kbuild: make designated_init attribute fatal
kbuild: drop unneeded patterns '.*.orig' and '.*.rej' from distclean
...
10 May, 2017
1 commit
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This patch removes the need of subdir-y. Now all files/directories under
arch//include/uapi/ are exported.The only change for userland is the layout of the command 'make
headers_install_all': directories asm- are replaced by arch-/.
Those new directories contains all files/directories of the specified arch.Note that only cris and tile have more directories than only asm:
- arch-v[10|32] for cris;
- arch for tile.Signed-off-by: Nicolas Dichtel
Signed-off-by: Masahiro Yamada
09 May, 2017
1 commit
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Add a top-level Makefile help target for Userspace tools.
Also make each help "heading" end with a colon ':'.
Link: http://lkml.kernel.org/r/55c986ff-3966-3e47-2984-7349da2cce51@infradead.org
Signed-off-by: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
03 May, 2017
1 commit
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Evaluate LDFLAGS_BUILD_ID (which involves invoking the compiler) only
once instead of over and over.This provides a ~20% reduction in null build time with x86 allnoconfig:
$ make allnoconfig && make -j8
$ perf stat -r5 -e sched:sched_process_exec make -j8
- 2 119 sched:sched_process_exec
+ 1 878 sched:sched_process_exec- 1,238817018 seconds time elapsed
+ 0,971020553 seconds time elapsedSigned-off-by: Rabin Vincent
Signed-off-by: Masahiro Yamada
