17 Apr, 2019
1 commit
-
[ Upstream commit 02826a6ba301b72461c3706e1cc66d5571cd327e ]
Ard Biesheuvel reports bindeb-pkg with O= option is broken in the
following way:...
LD [M] sound/soc/rockchip/snd-soc-rk3399-gru-sound.ko
LD [M] sound/soc/rockchip/snd-soc-rockchip-pcm.ko
LD [M] sound/soc/rockchip/snd-soc-rockchip-rt5645.ko
LD [M] sound/soc/rockchip/snd-soc-rockchip-spdif.ko
LD [M] sound/soc/sh/rcar/snd-soc-rcar.ko
fakeroot -u debian/rules binary
make KERNELRELEASE=4.19.0-12677-g19beffaf7a99-dirty ARCH=arm64 KBUILD_SRC= intdeb-pkg
/bin/bash /home/ard/linux/scripts/package/builddeb
Makefile:600: include/config/auto.conf: No such file or directory
***
*** Configuration file ".config" not found!
***
*** Please run some configurator (e.g. "make oldconfig" or
*** "make menuconfig" or "make xconfig").
***
make[12]: *** [syncconfig] Error 1
make[11]: *** [syncconfig] Error 2
make[10]: *** [include/config/auto.conf] Error 2
make[9]: *** [__sub-make] Error 2
...Prior to commit 80463f1b7bf9 ("kbuild: add --include-dir flag only
for out-of-tree build"), both srctree and objtree were added to
--include-dir redundantly, and the wrong code '$MAKE image_name'
was working by relying on that. Now, the potential issue that had
previously been hidden just showed up.'$MAKE image_name' recurses to the generated $(objtree)/Makefile and
ends up with running in srctree, which is incorrect. It should be
invoked with '-f $srctree/Makefile' (or KBUILD_SRC=) to be executed
in objtree.Fixes: 80463f1b7bf9 ("kbuild: add --include-dir flag only for out-of-tree build")
Reported-by: Ard Biesheuvel
Signed-off-by: Masahiro Yamada
Tested-by: Ard Biesheuvel
Signed-off-by: Sasha Levin
03 Apr, 2019
1 commit
-
commit 54a7151b1496cddbb7a83546b7998103e98edc88 upstream.
Fix commit 56067812d5b0 ("kbuild: modversions: add infrastructure for
emitting relative CRCs") where CRCs are interpreted in host byte order
rather than proper kernel byte order. The bug is conditional on
CONFIG_MODULE_REL_CRCS.For example, when loading a BE module into a BE kernel compiled with a LE
system, the error "disagrees about version of symbol module_layout" is
produced. A message such as "Found checksum D7FA6856 vs module 5668FAD7"
will be given with debug enabled, which indicates an obvious endian
problem within __kcrctab within the kernel image.The general solution is to use the macro TO_NATIVE, as is done in
similar cases throughout modpost.c. With this correction it has been
verified that a BE kernel compiled with a LE system accepts BE modules.This change has also been verified with a LE kernel compiled with a LE
system, in which case TO_NATIVE returns its value unmodified since the
byte orders match. This is by far the common case.Fixes: 56067812d5b0 ("kbuild: modversions: add infrastructure for emitting relative CRCs")
Signed-off-by: Fredrik Noring
Cc: stable@vger.kernel.org
Signed-off-by: Masahiro Yamada
Signed-off-by: Greg Kroah-Hartman
24 Mar, 2019
1 commit
-
[ Upstream commit 6db2983cd8064808141ccefd75218f5b4345ffae ]
When checking for symbols with excessively long names,
account for null terminating character.Fixes: f3462aa952cf ("Kbuild: Handle longer symbols in kallsyms.c")
Signed-off-by: Eugene Loh
Acked-by: Ard Biesheuvel
Signed-off-by: Masahiro Yamada
Signed-off-by: Sasha Levin
13 Feb, 2019
3 commits
-
[ Upstream commit b058809bfc8faeb7b7cae047666e23375a060059 ]
A bug is present in GDB which causes early string termination when
parsing variables. This has been reported [0], but we should ensure
that we can support at least basic printing of the core kernel strings.For current gdb version (has been tested with 7.3 and 8.1), 'lx-version'
only prints one character.(gdb) lx-version
L(gdb)This can be fixed by casting 'linux_banner' as (char *).
(gdb) lx-version
Linux version 4.19.0-rc1+ (changbin@acer) (gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #21 SMP Sat Sep 1 21:43:30 CST 2018[0] https://sourceware.org/bugzilla/show_bug.cgi?id=20077
[kbingham@kernel.org: add detail to commit message]
Link: http://lkml.kernel.org/r/20181111162035.8356-1-kieran.bingham@ideasonboard.com
Fixes: 2d061d999424 ("scripts/gdb: add version command")
Signed-off-by: Du Changbin
Signed-off-by: Kieran Bingham
Acked-by: Jan Kiszka
Cc: Jan Kiszka
Cc: Jason Wessel
Cc: Daniel Thompson
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
Signed-off-by: Sasha Levin -
[ Upstream commit 67a28de47faa83585dd644bd4c31e5a1d9346c50 ]
Running something like:
decodecode vmlinux .
leads to interested results where not only the leading "." gets stripped
from the displayed paths, but also anywhere in the string, displaying
something like:kvm_vcpu_check_block (arch/arm64/kvm/virt/kvm/kvm_mainc:2141)
which doesn't help further processing.
Fix it by only stripping the base path if it is a prefix of the path.
Link: http://lkml.kernel.org/r/20181210174659.31054-3-marc.zyngier@arm.com
Signed-off-by: Marc Zyngier
Cc: Will Deacon
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
Signed-off-by: Sasha Levin -
[ Upstream commit 5818c683a619c534c113e1f66d24f636defc29bc ]
If an ARM mapping symbol shares an address with a valid symbol,
find_elf_symbol can currently return the mapping symbol instead, as the
symbol is not validated. This can result in confusing warnings:WARNING: vmlinux.o(.text+0x18f4028): Section mismatch in reference
from the function set_reset_devices() to the variable .init.text:$x.0This change adds a call to is_valid_name to find_elf_symbol, similarly
to how it's already used in find_elf_symbol2.Signed-off-by: Sami Tolvanen
Signed-off-by: Masahiro Yamada
Signed-off-by: Sasha Levin
26 Jan, 2019
2 commits
-
[ Upstream commit fbac5977d81cb2b2b7e37b11c459055d9585273c ]
An unterminated string literal followed by new line is passed to the
parser (with "multi-line strings not supported" warning shown), then
handled properly there.On the other hand, an unterminated string literal at end of file is
never passed to the parser, then results in memory leak.[Test Code]
----------(Kconfig begin)----------
source "Kconfig.inc"config A
bool "a"
-----------(Kconfig end)-------------------(Kconfig.inc begin)--------
config B
bool "b\No new line at end of file
---------(Kconfig.inc end)---------[Summary from Valgrind]
Before the fix:
LEAK SUMMARY:
definitely lost: 16 bytes in 1 blocks
...After the fix:
LEAK SUMMARY:
definitely lost: 0 bytes in 0 blocks
...Eliminate the memory leak path by handling this case. Of course, such
a Kconfig file is wrong already, so I will add an error message later.Signed-off-by: Masahiro Yamada
Signed-off-by: Sasha Levin -
[ Upstream commit 77c1c0fa8b1477c5799bdad65026ea5ff676da44 ]
Currently, warn_ignore_character() displays invalid file name and
line number.The lexer should use current_file->name and yylineno, while the parser
should use zconf_curname() and zconf_lineno().This difference comes from that the lexer is always going ahead
of the parser. The parser needs to look ahead one token to make a
shift/reduce decision, so the lexer is requested to scan more text
from the input file.This commit fixes the warning message from warn_ignored_character().
[Test Code]
----(Kconfig begin)----
/
-----(Kconfig end)-----[Output]
Before the fix:
:0:warning: ignoring unsupported character '/'
After the fix:
Kconfig:1:warning: ignoring unsupported character '/'
Signed-off-by: Masahiro Yamada
Signed-off-by: Sasha Levin
17 Jan, 2019
1 commit
-
commit e4f358916d528d479c3c12bd2fd03f2d5a576380 upstream.
Commit
4cd24de3a098 ("x86/retpoline: Make CONFIG_RETPOLINE depend on compiler support")
replaced the RETPOLINE define with CONFIG_RETPOLINE checks. Remove the
remaining pieces.[ bp: Massage commit message. ]
Fixes: 4cd24de3a098 ("x86/retpoline: Make CONFIG_RETPOLINE depend on compiler support")
Signed-off-by: WANG Chao
Signed-off-by: Borislav Petkov
Reviewed-by: Zhenzhong Duan
Reviewed-by: Masahiro Yamada
Cc: "H. Peter Anvin"
Cc: Andi Kleen
Cc: Andrew Morton
Cc: Andy Lutomirski
Cc: Arnd Bergmann
Cc: Daniel Borkmann
Cc: David Woodhouse
Cc: Geert Uytterhoeven
Cc: Jessica Yu
Cc: Jiri Kosina
Cc: Kees Cook
Cc: Konrad Rzeszutek Wilk
Cc: Luc Van Oostenryck
Cc: Michal Marek
Cc: Miguel Ojeda
Cc: Peter Zijlstra
Cc: Tim Chen
Cc: Vasily Gorbik
Cc: linux-kbuild@vger.kernel.org
Cc: srinivas.eeda@oracle.com
Cc: stable
Cc: x86-ml
Link: https://lkml.kernel.org/r/20181210163725.95977-1-chao.wang@ucloud.cn
Signed-off-by: Greg Kroah-Hartman
13 Jan, 2019
1 commit
-
[ Upstream commit f1733a1d3cd32a9492f4cf866be37bb46e10163d ]
There is actually a space after "sp," like this,
ffff2000080813c8: a9bb7bfd stp x29, x30, [sp, #-80]!
Right now, checkstack.pl isn't able to print anything on aarch64,
because it won't be able to match the stating objdump line of a function
due to this missing space. Hence, it displays every stack as zero-size.After this patch, checkpatch.pl is able to match the start of a
function's objdump, and is then able to calculate each function's stack
correctly.Link: http://lkml.kernel.org/r/20181207195843.38528-1-cai@lca.pw
Signed-off-by: Qian Cai
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
Signed-off-by: Sasha Levin
20 Dec, 2018
1 commit
-
commit 3a6ab5c7dc114057fd67750e308e1745dafc0e6a upstream.
The spdxcheck script currently falls over when confronted with a binary
file (such as Documentation/logo.gif). To avoid that, always open files
in binary mode and decode line-by-line, ignoring encoding errors.One tricky case is when piping data into the script and reading it from
standard input. By default, standard input will be opened in text mode,
so we need to reopen it in binary mode.The breakage only happens with python3 and results in a
UnicodeDecodeError (according to Uwe).Link: http://lkml.kernel.org/r/20181212131210.28024-1-thierry.reding@gmail.com
Fixes: 6f4d29df66ac ("scripts/spdxcheck.py: make python3 compliant")
Signed-off-by: Thierry Reding
Reviewed-by: Jeremy Cline
Cc: Thomas Gleixner
Cc: Jonathan Corbet
Cc: Joe Perches
Cc: Uwe Kleine-König
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
Signed-off-by: Greg Kroah-Hartman
08 Dec, 2018
1 commit
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commit 38c7b224ce22c25fed04007839edf974bd13439d upstream.
New versions of gcc reasonably warn about the odd pattern of
strncpy(p, q, strlen(q));
which really doesn't make sense: the strncpy() ends up being just a slow
and odd way to write memcpy() in this case.There was a comment about _why_ the code used strncpy - to avoid the
terminating NUL byte, but memcpy does the same and avoids the warning.Signed-off-by: Linus Torvalds
Signed-off-by: Greg Kroah-Hartman
06 Dec, 2018
1 commit
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commit 4cd24de3a0980bf3100c9dcb08ef65ca7c31af48 upstream
Since retpoline capable compilers are widely available, make
CONFIG_RETPOLINE hard depend on the compiler capability.Break the build when CONFIG_RETPOLINE is enabled and the compiler does not
support it. Emit an error message in that case:"arch/x86/Makefile:226: *** You are building kernel with non-retpoline
compiler, please update your compiler.. Stop."[dwmw: Fail the build with non-retpoline compiler]
Suggested-by: Peter Zijlstra
Signed-off-by: Zhenzhong Duan
Signed-off-by: Thomas Gleixner
Cc: David Woodhouse
Cc: Borislav Petkov
Cc: Daniel Borkmann
Cc: H. Peter Anvin
Cc: Konrad Rzeszutek Wilk
Cc: Andy Lutomirski
Cc: Masahiro Yamada
Cc: Michal Marek
Cc:
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/cca0cb20-f9e2-4094-840b-fb0f8810cd34@default
Signed-off-by: Greg Kroah-Hartman
27 Nov, 2018
2 commits
-
[ Upstream commit 8ef14c2c41d962756d314f1d7dc972b0ea7a180f ]
This reverts commit 6147b1cf19651c7de297e69108b141fb30aa2349.
The reverted patch results in attempted write access to the source
repository, even if that repository is mounted read-only.Output from "strace git status -uno --porcelain":
getcwd("/tmp/linux-test", 129) = 16
open("/tmp/linux-test/.git/index.lock", O_RDWR|O_CREAT|O_EXCL|O_CLOEXEC, 0666) =
-1 EROFS (Read-only file system)While git appears to be able to handle this situation, a monitored
build environment (such as the one used for Chrome OS kernel builds)
may detect it and bail out with an access violation error. On top of
that, the attempted write access suggests that git _will_ write to the
file even if a build output directory is specified. Users may have the
reasonable expectation that the source repository remains untouched in
that situation.Fixes: 6147b1cf19651 ("scripts/setlocalversion: git: Make -dirty check more robust"
Cc: Genki Sky
Signed-off-by: Guenter Roeck
Reviewed-by: Brian Norris
Signed-off-by: Masahiro Yamada
Signed-off-by: Sasha Levin -
[ Upstream commit bbcde0a7241261cd0ca8d8e6b94a4113a4b71443 ]
Since commit b41d920acff8 ("kbuild: deb-pkg: split generating packaging
and build"), the build version of the kernel contained in a deb package
is too low by 1.Prior to the bad commit, the kernel was built first, then the number
in .version file was read out, and written into the debian control file.Now, the debian control file is created before the kernel is actually
compiled, which is causing the version number mismatch.Let the mkdebian script pass KBUILD_BUILD_VERSION=${revision} to require
the build system to use the specified version number.Fixes: b41d920acff8 ("kbuild: deb-pkg: split generating packaging and build")
Reported-by: Doug Smythies
Signed-off-by: Masahiro Yamada
Tested-by: Doug Smythies
Signed-off-by: Sasha Levin
21 Nov, 2018
1 commit
-
commit 6f4d29df66acd49303a99025046b85cabe7aa17a upstream.
Without this change the following happens when using Python3 (3.6.6):
$ echo "GPL-2.0" | python3 scripts/spdxcheck.py -
FAIL: 'str' object has no attribute 'decode'
Traceback (most recent call last):
File "scripts/spdxcheck.py", line 253, in
parser.parse_lines(sys.stdin, args.maxlines, '-')
File "scripts/spdxcheck.py", line 171, in parse_lines
line = line.decode(locale.getpreferredencoding(False), errors='ignore')
AttributeError: 'str' object has no attribute 'decode'So as the line is already a string, there is no need to decode it and
the line can be dropped./usr/bin/python on Arch is Python 3. So this would indeed be worth
going into 4.19.Link: http://lkml.kernel.org/r/20181023070802.22558-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König
Cc: Thomas Gleixner
Cc: Joe Perches
Cc: Greg Kroah-Hartman
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
Signed-off-by: Greg Kroah-Hartman
12 Oct, 2018
1 commit
-
…t/masahiroy/linux-kbuild
Masahiro writes:
"Kbuild fixes for v4.19 (2nd)
- Fix warnings from recordmcount.pl when building with Clang
- Allow Clang to use GNU toolchains correctly
- Disable CONFIG_SAMPLES for UML to avoid build error"* tag 'kbuild-fixes-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
samples: disable CONFIG_SAMPLES for UML
kbuild: allow to use GCC toolchain not in Clang search path
ftrace: Build with CPPFLAGS to get -Qunused-arguments
19 Sep, 2018
1 commit
-
When building to record the mcount locations the kernel uses
KBUILD_CFLAGS but not KBUILD_CPPFLAGS. This means it lacks
-Qunused-arguments when building with clang, resulting in a lot of
noisy warnings.Signed-off-by: Joel Stanley
Reviewed-by: Nick Desaulniers
Signed-off-by: Masahiro Yamada
17 Sep, 2018
1 commit
-
…l/git/shuah/linux-kselftest
Pulled kselftest fixes from Shuah:
"This Kselftest fixes update for 4.9-rc5 consists of:-- fixes to build failures
-- fixes to add missing config files to increase test coverage
-- fixes to cgroup test and a new cgroup test for memory.oom.group"
09 Sep, 2018
2 commits
-
…masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- make setlocalversion more robust about -dirty check
- loosen the pkg-config requirement for Kconfig
- change missing depmod to a warning from an error
- warn modules_install when System.map is missing
* tag 'kbuild-fixes-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: modules_install: warn when missing System.map file
kbuild: make missing $DEPMOD a Warning instead of an Error
kconfig: do not require pkg-config on make {menu,n}config
kconfig: remove a spurious self-assignment
scripts/setlocalversion: git: Make -dirty check more robust -
If there is no System.map file for "make modules_install",
scripts/depmod.sh will silently exit with success, having done
nothing. Since this is an unexpected situation, change it to
report a Warning for the missing file. The behavior is not
changed except for the Warning message.The (previous) silent success and new Warning can be reproduced
by:
$ make mrproper; make defconfig
$ make modules; make modules_installand since System.map is produced by "make vmlinux", the steps
above omit producing the System.map file.Reported-by: Masahiro Yamada
Signed-off-by: Randy Dunlap
Signed-off-by: Masahiro Yamada
06 Sep, 2018
1 commit
-
…el/git/greentime/linux
Pull nds32 updates from Greentime Hu:
"Contained in here are the bug fixes, building error fixes and ftrace
support for nds32"* tag 'nds32-for-linus-4.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux:
nds32: linker script: GCOV kernel may refers data in __exit
nds32: fix build error because of wrong semicolon
nds32: Fix a kernel panic issue because of wrong frame pointer access.
nds32: Only print one page of stack when die to prevent printing too much information.
nds32: Add macro definition for offset of lp register on stack
nds32: Remove the deprecated ABI implementation
nds32/stack: Get real return address by using ftrace_graph_ret_addr
nds32/ftrace: Support dynamic function graph tracer
nds32/ftrace: Support dynamic function tracer
nds32/ftrace: Add RECORD_MCOUNT support
nds32/ftrace: Support static function graph tracer
nds32/ftrace: Support static function tracer
nds32: Extract the checking and getting pointer to a macro
nds32: Clean up the coding style
nds32: Fix get_user/put_user macro expand pointer problem
nds32: Fix empty call trace
nds32: add NULL entry to the end of_device_id array
nds32: fix logic for module
05 Sep, 2018
3 commits
-
If the kernel headers aren't installed we can't build all the tests.
Add a new make target rule 'khdr' in the file lib.mk to generate the
kernel headers and that gets include for every test-dir Makefile that
includes lib.mk If the testdir in turn have its own sub-dirs the
top_srcdir needs to be set to the linux-rootdir to be able to generate
the kernel headers.Signed-off-by: Anders Roxell
Reviewed-by: Fathi Boudra
Signed-off-by: Shuah Khan (Samsung OSG) -
__ro_after_init is a specific __attribute__ that checkpatch does currently
not understand.Add it to the known $Attribute types so that code that uses variables
declared with __ro_after_init are not thought to be a modifier type.This appears as a defect in checkpatch output of code like:
static bool trust_cpu __ro_after_init = IS_ENABLED(CONFIG_RANDOM_TRUST_CPU);
[...]
if (trust_cpu && arch_init) {where checkpatch reports:
ERROR: space prohibited after that '&&' (ctx:WxW)
if (trust_cpu && arch_init) {Link: http://lkml.kernel.org/r/0fa8a2cb83ade4c525e18261ecf6cfede3015983.camel@perches.com
Signed-off-by: Joe Perches
Reported-by: Kees Cook
Tested-by: Kees Cook
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Using a static const struct definition as part of a series of
declarations produces a false positive "Missing a blank line after
declarations" for code like:WARNING: Missing a blank line after declarations
#710: FILE: drivers/gpu/drm/tidss/tidss_scale_coefs.c:137:
+ int inc;
+ static const struct {So fix it.
Link: http://lkml.kernel.org/r/5905126e70b0ed1781e49265fd5c49c5090d0223.camel@perches.com
Signed-off-by: Joe Perches
Reported-by: Jyri Sarha
Cc: "Valkeinen, Tomi"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
04 Sep, 2018
1 commit
-
Recognize NDS32 object files in recordmcount.pl.
Signed-off-by: Zong Li
Acked-by: Greentime Hu
Signed-off-by: Greentime Hu
03 Sep, 2018
3 commits
-
When $DEPMOD is not found, only print a warning instead of exiting
with an error message and error status:Warning: 'make modules_install' requires /sbin/depmod. Please install it.
This is probably in the kmod package.Change the Error to a Warning because "not all build hosts for cross
compiling Linux are Linux systems and are able to provide a working
port of depmod, especially at the file patch /sbin/depmod."I.e., "make modules_install" may be used to copy/install the
loadable modules files to a target directory on a build system and
then transferred to an embedded device where /sbin/depmod is run
instead of it being run on the build system.Fixes: 934193a654c1 ("kbuild: verify that $DEPMOD is installed")
Signed-off-by: Randy Dunlap
Reported-by: H. Nikolaus Schaller
Cc: stable@vger.kernel.org
Cc: Lucas De Marchi
Cc: Lucas De Marchi
Cc: Michal Marek
Cc: Jessica Yu
Cc: Chih-Wei Huang
Signed-off-by: Masahiro Yamada -
Meelis Roos reported a {menu,n}config regression:
"I have libncurses devel package installed in the default system
location (as do 99%+ on actual developers probably) and in this
case, pkg-config is useless. pkg-config is needed only when
libraries and headers are installed in non-default locations but
it is bad to require installation of pkg-config on all the machines
where make menuconfig would be possibly run."For {menu,n}config, do not use pkg-config if it is not installed.
For {g,x}config, keep checking pkg-config since we really rely on it
for finding the installation paths of the required packages.Fixes: 4ab3b80159d4 ("kconfig: check for pkg-config on make {menu,n,g,x}config")
Reported-by: Meelis Roos
Signed-off-by: Masahiro Yamada
Tested-by: Meelis Roos
Tested-by: Randy Dunlap -
Pull x86 fixes from Thomas Gleixner:
"Speculation:- Make the microcode check more robust
- Make the L1TF memory limit depend on the internal cache physical
address space and not on the CPUID advertised physical address
space, which might be significantly smaller. This avoids disabling
L1TF on machines which utilize the full physical address space.- Fix the GDT mapping for EFI calls on 32bit PTI
- Fix the MCE nospec implementation to prevent #GP
Fixes and robustness:
- Use the proper operand order for LSL in the VDSO
- Prevent NMI uaccess race against CR3 switching
- Add a lockdep check to verify that text_mutex is held in
text_poke() functions- Repair the fallout of giving native_restore_fl() a prototype
- Prevent kernel memory dumps based on usermode RIP
- Wipe KASAN shadow stack before rewinding the stack to prevent false
positives- Move the AMS GOTO enforcement to the actual build stage to allow
user API header extraction without a compiler- Fix a section mismatch introduced by the on demand VDSO mapping
changeMiscellaneous:
- Trivial typo, GCC quirk removal and CC_SET/OUT() cleanups"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/pti: Fix section mismatch warning/error
x86/vdso: Fix lsl operand order
x86/mce: Fix set_mce_nospec() to avoid #GP fault
x86/efi: Load fixmap GDT in efi_call_phys_epilog()
x86/nmi: Fix NMI uaccess race against CR3 switching
x86: Allow generating user-space headers without a compiler
x86/dumpstack: Don't dump kernel memory based on usermode RIP
x86/asm: Use CC_SET()/CC_OUT() in __gen_sigismember()
x86/alternatives: Lockdep-enforce text_mutex in text_poke*()
x86/entry/64: Wipe KASAN stack shadow before rewind_stack_do_exit()
x86/irqflags: Mark native_restore_fl extern inline
x86/build: Remove jump label quirk for GCC older than 4.5.2
x86/Kconfig: Fix trivial typo
x86/speculation/l1tf: Increase l1tf memory limit for Nehalem+
x86/spectre: Add missing family 6 check to microcode check
01 Sep, 2018
2 commits
-
The self assignment was probably introduced by an automated code
refactoring in
commit 694c49a7c01c ("kconfig: drop localization support").The issue was identified by a self-assign warning when running
make menuconfig with clang.Fixes: 694c49a7c01c ("kconfig: drop localization support")
Signed-off-by: Lukas Bulwahn
Signed-off-by: Masahiro Yamada -
$(git diff-index) relies on the index being refreshed. This refreshing
of the index used to happen, but was removed in cdf2bc632ebc
("scripts/setlocalversion on write-protected source tree", 2013-06-14)
due to issues with a read-only filesystem.If the index is not refreshed, one runs into problems. E.g. as
described in [0], git stores the uid in its index, so even if just the
uid has changed (or git is tricked into thinking so), then we will
think the tree is dirty. So as in [1], if you package linux-git with a
system that uses fakeroot(1), you get a "-dirty" version. Unless you
manually $(git update-index --refresh) themselves.The simplest solution seems to be $(git status --porcelain), with an
additional flag saying "ignore untracked files". It seems clearer
about what it does, and avoids issues regarding cached indexes and
writable filesystems, but still has stable output for scripting.[0]: https://public-inbox.org/git/0190ae30-b6c8-2a8b-b1fb-fd9d84e6dfdf@oracle.com/
[1]: https://bbs.archlinux.org/viewtopic.php?id=236702Signed-off-by: Genki Sky
Signed-off-by: Masahiro Yamada
30 Aug, 2018
2 commits
-
Commit cafa0010cd51 ("Raise the minimum required gcc version to 4.6")
bumped the minimum GCC version to 4.6 for all architectures.This effectively reverts commit da541b20021c ("objtool: Skip unreachable
warnings for GCC 4.4 and older"), which was a workaround for GCC 4.4 or
older.Signed-off-by: Masahiro Yamada
Signed-off-by: Thomas Gleixner
Acked-by: Josh Poimboeuf
Cc: Peter Zijlstra
Cc: Michal Marek
Cc: linux-kbuild@vger.kernel.org
Link: https://lkml.kernel.org/r/1535341183-19994-1-git-send-email-yamada.masahiro@socionext.com -
Commit cafa0010cd51 ("Raise the minimum required gcc version to 4.6")
bumped the minimum GCC version to 4.6 for all architectures.Remove the workaround code.
It was the only user of cc-if-fullversion. Remove the macro as well.
Signed-off-by: Masahiro Yamada
Signed-off-by: Thomas Gleixner
Cc: "H. Peter Anvin"
Cc: Michal Marek
Cc: linux-kbuild@vger.kernel.org
Link: https://lkml.kernel.org/r/1535348714-25457-1-git-send-email-yamada.masahiro@socionext.com
27 Aug, 2018
1 commit
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Pull gcc plugin fix from Kees Cook:
"Lift gcc test into Kconfig. This is for better behavior when the
kernel is built with Clang, reported by Stefan Agner"* tag 'gcc-plugins-v4.19-rc1-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
gcc-plugins: Disable when building under Clang
26 Aug, 2018
1 commit
-
Pull more Kbuild updates from Masahiro Yamada:
- add build_{menu,n,g,x}config targets for compile-testing Kconfig
- fix and improve recursive dependency detection in Kconfig
- fix parallel building of menuconfig/nconfig
- fix syntax error in clang-version.sh
- suppress distracting log from syncconfig
- remove obsolete "rpm" target
- remove VMLINUX_SYMBOL(_STR) macro entirely
- fix microblaze build with CONFIG_DYNAMIC_FTRACE
- move compiler test for dead code/data elimination to Kconfig
- rename well-known LDFLAGS variable to KBUILD_LDFLAGS
- misc fixes and cleanups
* tag 'kbuild-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: rename LDFLAGS to KBUILD_LDFLAGS
kbuild: pass LDFLAGS to recordmcount.pl
kbuild: test dead code/data elimination support in Kconfig
initramfs: move gen_initramfs_list.sh from scripts/ to usr/
vmlinux.lds.h: remove stale include
export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR()
Coccinelle: remove pci_alloc_consistent semantic to detect in zalloc-simple.cocci
kbuild: make sorting initramfs contents independent of locale
kbuild: remove "rpm" target, which is alias of "rpm-pkg"
kbuild: Fix LOADLIBES rename in Documentation/kbuild/makefiles.txt
kconfig: suppress "configuration written to .config" for syncconfig
kconfig: fix "Can't open ..." in parallel build
kbuild: Add a space after `!` to prevent parsing as file pattern
scripts: modpost: check memory allocation results
kconfig: improve the recursive dependency report
kconfig: report recursive dependency involving 'imply'
kconfig: error out when seeing recursive dependency
kconfig: add build-only configurator targets
scripts/dtc: consolidate include path options in Makefile
24 Aug, 2018
4 commits
-
Also add these typos to spelling.txt so checkpatch.pl will look for them.
Link: http://lkml.kernel.org/r/88af06b9de34d870cb0afc46cfd24e0458be2575.1529471371.git.fthain@telegraphics.com.au
Signed-off-by: Finn Thain
Cc: Masahiro Yamada
Cc: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Commit a0f97e06a43c ("kbuild: enable 'make CFLAGS=...' to add
additional options to CC") renamed CFLAGS to KBUILD_CFLAGS.Commit 222d394d30e7 ("kbuild: enable 'make AFLAGS=...' to add
additional options to AS") renamed AFLAGS to KBUILD_AFLAGS.Commit 06c5040cdb13 ("kbuild: enable 'make CPPFLAGS=...' to add
additional options to CPP") renamed CPPFLAGS to KBUILD_CPPFLAGS.For some reason, LDFLAGS was not renamed.
Using a well-known variable like LDFLAGS may result in accidental
override of the variable.Kbuild generally uses KBUILD_ prefixed variables for the internally
appended options, so here is one more conversion to sanitize the
naming convention.I did not touch Makefiles under tools/ since the tools build system
is a different world.Signed-off-by: Masahiro Yamada
Acked-by: Kirill A. Shutemov
Reviewed-by: Palmer Dabbelt -
Since commit 0fbe9a245c60 ("microblaze: add endianness options to
LDFLAGS instead of LD"), you cannot build the kernel for microblaze
with CONFIG_DYNAMIC_FTRACE.Fixes: 0fbe9a245c60 ("microblaze: add endianness options to LDFLAGS instead of LD")
Signed-off-by: Masahiro Yamada -
Prior to doing compiler feature detection in Kconfig, attempts to build
GCC plugins with Clang would fail the build, much in the same way missing
GCC plugin headers would fail the build. However, now that this logic
has been lifted into Kconfig, add an explicit test for GCC (instead of
duplicating it in the feature-test script).Reported-by: Stefan Agner
Signed-off-by: Kees Cook
Reviewed-by: Masahiro Yamada
23 Aug, 2018
1 commit
-
Devicetree bindings should be their own patch as documented in
Documentation/devicetree/bindings/submitting-patches.txt section I.1.
This is because bindings are logically independent from a driver
implementation, they have a different maintainer (even though they often
are applied via the same tree), and it makes for a cleaner history in the
DT only tree created with git-filter-branch.[robh@kernel.org: add doc pointer to warning, simplify logic]
Link: http://lkml.kernel.org/r/20180810170513.26284-1-robh@kernel.org
[robh@kernel.org: v3]
Link: http://lkml.kernel.org/r/20180810225049.20452-1-robh@kernel.org
Link: http://lkml.kernel.org/r/20180809205032.22205-1-robh@kernel.org
Signed-off-by: Rob Herring
Acked-by: Joe Perches
Cc: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
