On Tue, Mar 19, 2024 at 06:15:09PM -0400, Steven Rostedt wrote:
> On Tue, 19 Mar 2024 09:07:51 -0700
> Nathan Chancellor wrote:
>
> > Hi all,
> >
> > This series fully resolves the new instance of -Wstring-compare from
> > within the __assign_str() macro.
heck")
Reported-by: Linux Kernel Functional Testing
Closes:
https://lore.kernel.org/all/CA+G9fYs=otkazs6g1p1ewadfr0qoe6lgovsohqkxmfxoteo...@mail.gmail.com/
Signed-off-by: Nathan Chancellor
---
include/trace/stages/stage6_event_callback.h | 5 +
1 file changed, 5 insertions(+)
diff -
rge window so
that this warning does not proliferate into other trees that base on
-rc1.
---
Nathan Chancellor (2):
compiler_types: Ensure __diag_clang() is always available
tracing: Ignore -Wstring-compare with diagnostic macros
include/linux/compiler_types.h | 4 +++
and compiler-gcc.h.
Add an empty stub for __diag_clang() in compiler_types.h, so that it is
always defined and just becomes a no-op when using GCC.
Fixes: f014a00bbeb0 ("compiler-clang.h: Add __diag infrastructure for clang")
Signed-off-by: Nathan Chancellor
---
include/linux/compiler_t
Hi Naresh,
On Mon, Mar 18, 2024 at 02:55:54PM +0530, Naresh Kamboju wrote:
> The following build warnings / errors noticed on x86 kselftests build with
> clang nightly / clang-17 on Linux next tag next-20240318.
>
> This build config is generated from kselftest merge configs [1].
>
>
On Tue, Mar 12, 2024 at 11:30:02AM -0400, Steven Rostedt wrote:
> From: "Steven Rostedt (Google)"
>
> The WARN_ON() check in __assign_str() to catch where the source variable
> to the macro doesn't match the source variable to __string() gives an
> error in clang:
>
> >>
On Tue, Feb 06, 2024 at 12:05:29PM +0100, Daniel Bristot de Oliveira wrote:
> The following errors are showing up when compiling rtla with clang:
>
> $ make HOSTCC=clang CC=clang LLVM_IAS=1
> [...]
>
> clang -O -g -DVERSION=\"6.8.0-rc1\" -flto=auto -ffat-lto-objects
> -fexceptions
("eventfs: Remove eventfs_file and just use eventfs_inode")
Signed-off-by: Nathan Chancellor
---
fs/tracefs/event_inode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/tracefs/event_inode.c b/fs/tracefs/event_inode.c
index 1ccd100bc565..9f19b6608954 100644
--- a/
On Mon, Oct 09, 2023 at 09:42:10PM +0900, Masahiro Yamada wrote:
> Now that vdso_install does not depend on any in-tree build artifact,
> it no longer invokes a compiler, making no-compiler-targets the same
> as no-sync-config-targets.
>
> Signed-off-by: Masahiro Yamada
> ---
>
> Makefile | 13
Signed-off-by: Michal Suchanek
This appears to work for me.
Reviewed-by: Nathan Chancellor
> ---
> scripts/package/kernel.spec | 8
> scripts/package/mkspec | 1 +
> 2 files changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/scripts/package/kerne
On Fri, Apr 16, 2021 at 03:46:23PM -0700, Andrew Morton wrote:
> From: Johannes Berg
> Subject: gcov: clang: fix clang-11+ build
>
> With clang-11+, the code is broken due to my kvmalloc() conversion (which
> predated the clang-11 support code) leaving one vmalloc() in place. Fix
> that.
>
>
The following commit has been merged into the perf/core branch of tip:
Commit-ID: de5bc7b425d4c27ae5faa00ea7eb6b9780b9a355
Gitweb:
https://git.kernel.org/tip/de5bc7b425d4c27ae5faa00ea7eb6b9780b9a355
Author:Nathan Chancellor
AuthorDate:Wed, 14 Apr 2021 17:11:11 -07:00
The following commit has been merged into the perf/core branch of tip:
Commit-ID: 5deac80d4571dffb51f452f0027979d72259a1b9
Gitweb:
https://git.kernel.org/tip/5deac80d4571dffb51f452f0027979d72259a1b9
Author:Nathan Chancellor
AuthorDate:Wed, 14 Apr 2021 17:11:12 -07:00
The following commit has been merged into the perf/core branch of tip:
Commit-ID: bccae9d7b013bd708ece414f74defaee56790e1d
Gitweb:
https://git.kernel.org/tip/bccae9d7b013bd708ece414f74defaee56790e1d
Author:Nathan Chancellor
AuthorDate:Wed, 14 Apr 2021 17:11:11 -07:00
The following commit has been merged into the perf/core branch of tip:
Commit-ID: b04c0cddff6d1d6656c7f7c08c0b8f07eb287564
Gitweb:
https://git.kernel.org/tip/b04c0cddff6d1d6656c7f7c08c0b8f07eb287564
Author:Nathan Chancellor
AuthorDate:Wed, 14 Apr 2021 17:11:12 -07:00
bit and will not overflow.
Fixes: 7b6f846785f4 ("drm/tegra: Support sector layout on Tegra194")
Link: https://github.com/ClangBuiltLinux/linux/issues/1351
Signed-off-by: Nathan Chancellor
---
drivers/gpu/drm/tegra/hub.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/dr
On Thu, Apr 15, 2021 at 08:53:35AM +0100, Christoph Hellwig wrote:
> On Wed, Apr 14, 2021 at 05:11:11PM -0700, Nathan Chancellor wrote:
> > dev_attr_show() calls _iommu_event_show() via an indirect call but
> > _iommu_event_show()'s type does not currently match the type of the
&g
On Sun, Mar 21, 2021 at 10:11:29PM +0200, Oded Gabbay wrote:
> From: Ohad Sharabi
>
> In order to use minimum of hard coded values common to LKD and F/W
> a dynamic method to work with PLLs is introduced in this patch.
> Formerly asic specific PLL numbering is now common for all asics.
> To be
On Thu, Apr 15, 2021 at 10:17:43AM +0100, Catalin Marinas wrote:
> Hi Nathan,
>
> On Tue, Apr 13, 2021 at 05:08:04PM -0700, Nathan Chancellor wrote:
> > After commit 2decad92f473 ("arm64: mte: Ensure TIF_MTE_ASYNC_FAULT is
> > set atomically"), LLVM's integrated a
> remove those too.
>
> To test building:
> $ ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- \
> CROSS_COMPILE_COMPAT=arm-linux-gnueabi- make LLVM=1 LLVM_IAS=1 \
> defconfig arch/arm64/kernel/vdso32/
>
> Suggested-by: Nathan Chancellor
> Signed-off-by: Nick Desaulni
perf/amd/uncore: Prepare to scale for more attributes
that vary per family")
Signed-off-by: Nathan Chancellor
---
arch/x86/events/amd/uncore.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/events/amd/uncore.c b/arch/x86/events/amd/uncore.c
index 7f014d
d75 ("perf/x86/amd: AMD IOMMU Performance Counter PERF uncore
PMU implementation")
Signed-off-by: Nathan Chancellor
---
arch/x86/events/amd/iommu.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/events/amd/iommu.c b/arch/x86/events/amd/iommu.
Hi Miguel,
On Wed, Apr 14, 2021 at 08:45:54PM +0200, oj...@kernel.org wrote:
> From: Miguel Ojeda
>
> To support Rust under GCC-built kernels, we need to save the flags that
> would have been passed if the kernel was being compiled with Clang.
>
> The reason is that bindgen -- the tool we use
sn has
not shown any issue yet but it appears that it could have the same issue
in the future so just preemptively change it.
Cc: sta...@vger.kernel.org
Fixes: f7b93d42945c ("arm64/alternatives: use subsections for replacement
sequences")
Link: https://github.com/ClangBuiltLinux/linux/iss
On Tue, Apr 13, 2021 at 04:06:06PM -0700, Nick Desaulniers wrote:
> Clang can assemble these files just fine; this is a relic from the top
> level Makefile conditionally adding this.
>
> To test building:
> $ ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- \
>
On Fri, Mar 26, 2021 at 08:27:13PM +0800, kernel test robot wrote:
> Hi Marc,
>
> FYI, the error/warning still remains.
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> master
> head: db24726bfefa68c606947a86132591568a06bfb4
> commit:
: d8f1308a025f ("crypto: arm/curve25519 - wire up NEON implementation")
Link: https://github.com/ClangBuiltLinux/continuous-integration2/issues/118
Reported-by: Arnd Bergmann
Suggested-by: Arnd Bergmann
Suggested-by: Jessica Clarke
Signed-off-by: Nathan Chancellor
---
arch/arm/crypto/
://source.denx.de/u-boot/u-boot/-/commit/79af75f7776fc20b0d7eb6afe1e27c00fdb4b9b4
Link:
https://source.denx.de/u-boot/u-boot/-/commit/3f04db891a353f4b127ed57279279f851c6b4917
Suggested-by: Simon Glass
Signed-off-by: Nathan Chancellor
---
arch/mips/generic/board-boston.its.S | 10 +-
arch
ld4@archlinux-ax161/
Link: https://lore.kernel.org/r/20210330230249.709221-1-jian...@google.com/
Signed-off-by: Nathan Chancellor
---
block/Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/block/Makefile b/block/Makefile
index 8d841f5f986f..d69ac0bd8e61 100644
--- a/block/Makefil
3:06 PM Nick Desaulniers
> wrote:
> >
> > On Wed, Mar 31, 2021 at 2:58 PM Nathan Chancellor wrote:
> > >
> > > On Wed, Mar 31, 2021 at 02:27:03PM -0700, Jian Cai wrote:
> > > >
> > > > I just realized you already proposed solutio
html#profile-guided-optimization
>
> Signed-off-by: Sami Tolvanen
> Co-developed-by: Bill Wendling
> Signed-off-by: Bill Wendling
> Tested-by: Nick Desaulniers
> Reviewed-by: Nick Desaulniers
> Reviewed-by: Fangrui Song
Few small nits below, not sure they warrant a v10 ver
e delivered
performance")
Link: https://github.com/ClangBuiltLinux/linux/issues/1343
Signed-off-by: Nathan Chancellor
---
drivers/acpi/cppc_acpi.c | 14 +++---
1 file changed, 3 insertions(+), 11 deletions(-)
diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
index 6905
GCOV support.
>
> Signed-off-by: Nick Desaulniers
Reviewed-by: Nathan Chancellor
> ---
> kernel/gcov/clang.c | 40
> 1 file changed, 40 deletions(-)
>
> diff --git a/kernel/gcov/clang.c b/kernel/gcov/clang.c
> index 1747204541bf..78c
ular, in clang-11, the additional checksum is no longer optional.
>
> Link: https://reviews.llvm.org/rG25544ce2df0daa4304c07e64b9c8b0f7df60c11d
> Cc: sta...@vger.kernel.org #5.4+
> Reported-by: Prasad Sodagudi
> Tested-by: Prasad Sodagudi
> Signed-off-by: Nick Desaulniers
Review
On Fri, Apr 02, 2021 at 04:03:30PM -0700, Kees Cook wrote:
> On Fri, Apr 02, 2021 at 12:52:41PM -0700, Nathan Chancellor wrote:
> > Hi all,
> >
> > I am testing the Clang Control Flow Integrity series that is being
> > worked on right now [1] and I encounter a
, show only
>the first 10, and also the number of suppressed warnings.
>
> [1]:
> https://git.kernel.org/pub/scm/linux/kernel/git/history/history.git/commit/?id=1cc0e0529569bf6a94f6d49770aa6d4b599d2c46
>
> Reported-by: Nathan Chancellor
> Signed-off-by: Masahi
iles changed, 759 insertions(+), 113 deletions(-)
> create mode 100644 include/linux/cfi.h
> create mode 100644 kernel/cfi.c
>
>
> base-commit: 6905b1dc3c32a094f0da61bd656a740f0a97d592
> --
> 2.31.0.208.g409f899ff0-goog
>
Hi Sami,
I booted this series on Equinix's c1.large.arm (2x Cavium ThunderX
CN8890) and c2.large.arm (1x Ampere eMAG 8180) servers [1] and my
Raspberry Pi 4B. I ran them through LTP's read_all test case on both
/proc and /sys and a few compile workloads, only uncovering one issue [2].
Consider this series:
Tested-by: Nathan Chancellor
[1]: https://metal.equinix.com/developers/docs/servers/
[2]: https://lore.kernel.org/r/20210402195241.gahc5w25gezluw7p@archlinux-ax161/
Cheers,
Nathan
Hi all,
I am testing the Clang Control Flow Integrity series that is being
worked on right now [1] and I encounter a violation in the Infiniband
sysfs core (drivers/infiniband/core/sysfs.c) on an arm64 server with mlx5:
$ cat /sys/class/infiniband/mlx5_bond_0/ports/1/hw_counters/lifespan
12
$
On Fri, Apr 02, 2021 at 11:25:42AM -0700, Kees Cook wrote:
> On Fri, Apr 02, 2021 at 08:42:07AM +0200, Sedat Dilek wrote:
> > On Thu, Feb 25, 2021 at 10:25 PM Kees Cook wrote:
> > >
> > > On Thu, 11 Feb 2021 12:42:58 -0700, Nathan Chancellor wrote:
> &g
^
> = 0
> 1 warning generated.
>
> The patch provides a default value to the `irq` variable
> along with a validity check.
>
Might be worth a fixes tag:
Fixes: b75ca5217743 ("ARM: OMAP: replace setup_irq() by request_irq()")
> S
e3d ("usb: isp1301-omap: Convert to use GPIO descriptors")
> Link: https://github.com/ClangBuiltLinux/linux/issues/1325
Thanks for the patch!
Reviewed-by: Nathan Chancellor
> ---
> arch/arm/mach-omap1/board-h2.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
ki
> Fixes: ce548396a433 ("media: mach-omap1: board-ams-delta.c: remove soc_camera
> dependencies")
> Link: https://github.com/ClangBuiltLinux/linux/issues/1326
Thanks for the patch!
Reviewed-by: Nathan Chancellor
> ---
> arch/arm/mach-omap1/board-ams-delta.c | 14 -
r 30, 2021 at 6:31 PM Jian Cai wrote:
> >
> > Thanks for all the information. I'll check for similar instances and
> > send an updated version.
> >
> >
> > On Tue, Mar 30, 2021 at 5:26 PM Guenter Roeck wrote:
> > >
> > > On 3/30/21 4:29 PM, Nathan C
Hi Jian,
On Tue, Mar 30, 2021 at 04:02:49PM -0700, Jian Cai wrote:
> This fixes the mismatch of alignments between csd and its use as an
> argument to smp_call_function_single_async, which causes build failure
> when -Walign-mismatch in Clang is used.
>
> Link:
> http://crrev.com/c/1193732
>
>
tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch]
>
> url:
> https://github.com/0day-ci/linux/commits/Nathan-Chancellor/riscv-Use-LD-instead-of-CC-to-link-vDSO/20210326-055421
> base:
The following commit has been merged into the x86/build branch of tip:
Commit-ID: 58d746c119dfa28e72fc35aacaf3d2a3ac625cd0
Gitweb:
https://git.kernel.org/tip/58d746c119dfa28e72fc35aacaf3d2a3ac625cd0
Author:Nathan Chancellor
AuthorDate:Thu, 25 Mar 2021 17:04:35 -07:00
The following commit has been merged into the x86/build branch of tip:
Commit-ID: d5cbd80e302dfea59726c44c56ab7957f822409f
Gitweb:
https://git.kernel.org/tip/d5cbd80e302dfea59726c44c56ab7957f822409f
Author:Nathan Chancellor
AuthorDate:Thu, 25 Mar 2021 17:04:34 -07:00
On Fri, Mar 26, 2021 at 09:37:55AM +0100, Sedat Dilek wrote:
> On Thu, Mar 25, 2021 at 11:38 PM Nathan Chancellor wrote:
> >
> > Hi all,
> >
> > This series fixes function tracing with clang.
> >
> > Patch 1 adjusts the mcount regex in scripts/recordmcou
that cross compiling works as
expected.
Signed-off-by: Nathan Chancellor
---
drivers/firmware/efi/libstub/Makefile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/firmware/efi/libstub/Makefile
b/drivers/firmware/efi/libstub/Makefile
index c23466e05e60..d0537573501e 100644
as expected.
Signed-off-by: Nathan Chancellor
---
arch/x86/boot/compressed/Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/boot/compressed/Makefile
b/arch/x86/boot/compressed/Makefile
index e0bc3988c3fa..6e5522aebbbd 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot
this on an ARM based server with both defconfig and
allmodconfig, where the build now passes.
Please let me know if there are any problems.
Cheers,
Nathan
John Millikin (1):
x86: Propagate $(CLANG_FLAGS) to $(REALMODE_FLAGS)
Nathan Chancellor (2):
x86/boot: Add $(CLANG_FLAGS) to compressed
parse certain GNU extensions.
Signed-off-by: John Millikin
Tested-by: Sedat Dilek
Signed-off-by: Nathan Chancellor
---
arch/x86/Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 2d6d5a28c3bf..9a73e0cea19c 100644
--- a/arch/x86/Makefile
+++ b
("riscv: Using PATCHABLE_FUNCTION_ENTRY instead of MCOUNT")
Link: https://github.com/ClangBuiltLinux/linux/issues/1268
Reported-by: kernel test robot
Signed-off-by: Nathan Chancellor
---
arch/riscv/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/riscv/Kcon
ng version is 10.0.1. To avoid build errors and to
gain a working function tracer, adjust the name of the mcount symbol for
older versions of clang in mount.S and recordmcount.pl.
Cc: sta...@vger.kernel.org
Link: https://github.com/ClangBuiltLinux/linux/issues/1331
Signed-off-by: Nathan Chancellor
---
is properly generated and
function tracing still works.
Cc: sta...@vger.kernel.org
Link: https://github.com/ClangBuiltLinux/linux/issues/1331
Signed-off-by: Nathan Chancellor
---
scripts/recordmcount.pl | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/recordmcount.pl b/scripts
ackported (patches 1 and 2 are already
marked for stable).
This series has been build tested with gcc-8 through gcc-10 and clang-11
through clang-13 with defconfig and nommu_virt_defconfig plus
CONFIG_FTRACE=y and CONFIG_FUNCTION_TRACER=y then boot tested under
QEMU.
Cheers,
Nathan
Nathan Chanc
dified, use the $(OBJCOPY)
variable instead of an open coded $(CROSS_COMPILE)objcopy so that the
user's choice of objcopy binary is respected.
Link: https://github.com/ClangBuiltLinux/linux/issues/803
Link: https://github.com/ClangBuiltLinux/linux/issues/970
Signed-off-by: Nathan Chancellor
--
once, and store it in the
> .config file. The build and installation steps that follow do not need
> to test the liniker over again.
>
> Reported-by: Nathan Chancellor
> Signed-off-by: Masahiro Yamada
Tested-by: Nathan Chancellor
Reviewed-by: Nathan Chancellor
Thanks for the q
. This patch adds the support to hook into the free
> page reporting infrastructure and leverage the Hyper-V cold memory
> discard hint hypercall to report/free these pages back to the host.
>
> Signed-off-by: Sunil Muthuswamy
> Tested-by: Matheus Castello
Tested-by: Nathan
e about these numbers; it determines the
> location of the RELR section using symbols defined by a linker script.
>
> Link: https://github.com/ClangBuiltLinux/linux/issues/1057
> Suggested-by: Peter Collingbourne
> Signed-off-by: Nick Desaulniers
Reviewed-by: Nathan Chancellor
> ---
&g
o22",
>^
> Add the missing comma that must have accidentally been removed.
>
> Fixes: ac43c44a7a37 ("pinctrl: qcom: Add SDX55 pincontrol driver")
> Signed-off-by: Arnd Bergmann
Reviewed-by: Na
On Fri, Mar 19, 2021 at 07:37:14PM +0100, Ansuel Smith wrote:
> Update ColumnLimit value, changed from 80 to 100.
>
> Signed-off-by: Ansuel Smith
> ---
> .clang-format | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/.clang-format b/.clang-format
> index
Hi Naresh,
Thank you for the testing and report.
On Fri, Mar 19, 2021 at 12:50:42PM +0530, Naresh Kamboju wrote:
> Linux mainline master build breaks for powerpc defconfig.
> There are multiple errors / warnings with clang-12 and clang-11 and 10.
> - powerpc (defconfig) with clang-12
> -
On Sun, Feb 28, 2021 at 03:10:28PM +0900, Masahiro Yamada wrote:
> Since commit f2f02ebd8f38 ("kbuild: improve cc-option to clean up all
> temporary files"), running 'make kernelversion' in a read-only source
> tree emits a bunch of warnings:
>
> mkdir: cannot create directory '.tmp_12345':
; interested in GCOV support.
>
> Link: https://reviews.llvm.org/rGcdd683b516d147925212724b09ec6fb792a40041
> Link: https://reviews.llvm.org/rG13a633b438b6500ecad9e4f936ebadf3411d0f44
> Suggested-by: Nathan Chancellor
> Signed-off-by: Nick Desaulniers
Reviewed-by: Nathan Chancel
00ecad9e4f936ebadf3411d0f44
> Cc: sta...@vger.kernel.org # 5.4
> Reported-by: Prasad Sodagudi
> Suggested-by: Nathan Chancellor
> Reviewed-by: Fangrui Song
> Signed-off-by: Nick Desaulniers
> Tested-by: Nathan Chancellor
Reviewed-by: Nathan Chancellor
> ---
> Cha
plemented scripts/as-version.sh to
> check the assembler version in Kconfig time.
>
> $ scripts/as-version.sh gcc
> GNU 23501
> $ scripts/as-version.sh clang -no-integrated-as
> GNU 23501
> $ scripts/as-version.sh clang -integrated-as
> LLVM 0
>
> [1]: https://
On Sat, Mar 13, 2021 at 10:59:43PM +0530, B K Karthik wrote:
> On Sat, Mar 13, 2021 at 10:57 PM namratajanawade
> wrote:
> >
> > Warning found by checkpatch.pl script.
>
> That doesn't tell what you did or why you did it. Please write an
> appropriate commit description and resend the patch.
>
On Fri, Mar 12, 2021 at 01:57:47PM -0800, 'Nick Desaulniers' via Clang Built
Linux wrote:
> On Fri, Mar 12, 2021 at 12:51 PM Nathan Chancellor wrote:
> >
> > On Fri, Mar 12, 2021 at 12:14:42PM -0800, Nick Desaulniers wrote:
> > > On Fri, Mar 12, 2021 at 11:58 AM Nathan
On Fri, Mar 12, 2021 at 12:14:42PM -0800, Nick Desaulniers wrote:
> On Fri, Mar 12, 2021 at 11:58 AM Nathan Chancellor wrote:
> >
> > On Fri, Mar 12, 2021 at 11:21:39AM -0800, Nick Desaulniers wrote:
> > > LLVM changed the expected function signatures
saulniers
I can reproduce the panic (as a boot hang) in QEMU before this patch and
it is resolved after it so:
Tested-by: Nathan Chancellor
However, the duplication hurts :( would it potentially be better to just
do the full update to clang-11+ and require it for CONFIG_GCOV_KERNEL?
_ALL is set on the user's environment.
>
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=212105
> Reported-by: Marco Scardovi
> Signed-off-by: Masahiro Yamada
LGTM, this is Debian's recommendation as well:
https://wiki.debian.org/Locale
Reviewed-by: Nathan Chancellor
> ---
>
>
Suggested-by: Nick Desaulniers
Signed-off-by: Nathan Chancellor
---
arch/arm/Kconfig.debug | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 9e0b5e7f12af..64c1f8a46ab5 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
On Wed, Mar 10, 2021 at 02:03:56PM -0700, Jens Axboe wrote:
> On 3/10/21 1:52 PM, Nathan Chancellor wrote:
> > On Wed, Mar 10, 2021 at 01:40:25PM -0700, Jens Axboe wrote:
> >> On 3/10/21 1:33 PM, Nathan Chancellor wrote:
> >>> On Wed, Mar 10, 2021 at 01:21:52PM -0700,
On Wed, Mar 10, 2021 at 01:40:25PM -0700, Jens Axboe wrote:
> On 3/10/21 1:33 PM, Nathan Chancellor wrote:
> > On Wed, Mar 10, 2021 at 01:21:52PM -0700, Jens Axboe wrote:
> >> On 3/10/21 11:23 AM, Nathan Chancellor wrote:
> >>> Hi Jens,
> >>>
On Wed, Mar 10, 2021 at 01:21:52PM -0700, Jens Axboe wrote:
> On 3/10/21 11:23 AM, Nathan Chancellor wrote:
> > Hi Jens,
> >
> > There is a new clang warning added in the development branch,
> > -Walign-mismatch, which shows an instance in block/blk-mq.c:
> >
&
Hi Jens,
There is a new clang warning added in the development branch,
-Walign-mismatch, which shows an instance in block/blk-mq.c:
block/blk-mq.c:630:39: warning: passing 8-byte aligned argument to
32-byte aligned parameter 2 of 'smp_call_function_single_async' may
result in an unaligned
07@Ryzen-5-4500U.localdomain/
Signed-off-by: Nathan Chancellor
---
v1 -> v2:
* Fix position of -no-integrated-as flag to fix native build (thanks to
Masahiro for catching it and sorry for the breakage).
* Add Fangrui's comments about what GNU binaries clang can spawn at
Masahir
nc' and '-nostdlib'.
This has been verified with self compiled LLVM 10.0.1 and LLVM 13.0.0 as
well as a distribution version of LLVM 11.1.0 without binutils in the
LLVM toolchain locations.
Link: https://reviews.llvm.org/D97902
Signed-off-by: Nathan Chancellor
---
v1 -> v2:
* Improve commit
t;
> Fixes: aec6c60a01d3 ("kbuild: check the minimum compiler version in Kconfig")
> Signed-off-by: Masahiro Yamada
Reviewed-by: Nathan Chancellor
Tested-by: Nathan Chancellor
> ---
>
> Perhaps, Jiri may have already noticed this issue, and have a similar patch.
>
nce LLD_VENDOR can contain spaces, the
> LLD identifier isn't guaranteed to be $2 either.
>
> Adjust the version checker to handle such versions of lld.
>
> Link:
> https://lore.kernel.org/lkml/20210302221211.1620858-1-b...@lindev.ch/
> Signed-off-by: Bernhar
On Sat, Mar 06, 2021 at 02:48:38AM +0900, Masahiro Yamada wrote:
> On Fri, Mar 5, 2021 at 10:26 AM Nick Desaulniers
> wrote:
> >
> > On Wed, Mar 3, 2021 at 10:34 AM Masahiro Yamada
> > wrote:
> > >
> > > Documentation/process/changes.rst defines the minimum assembler version
> > > (binutils
ces hyp_panic
> >>> defined in vmlinux.o
>
> This is because with LTO, the compiler ends up placing hyp_panic()
> more than 1MB away from __guest_enter(). Use an unconditional branch
> and adr_l instead to fix the issue.
>
> Link: https://github.com/ClangBuiltLinux/linux/is
g/keyrings/eda280f9-f72d-4181-93c7-cdbe95976...@oracle.com/T/#m07e258bf019ccbac23820fad5192ceffa74fc6ab
>
> Reported-by: Randy Dunlap
> Signed-off-by: Eric Snowberg
This seems to fix my build errors.
Tested-by: Nathan Chancellor
> ---
> v2 changes:
> Use the
s on !CC_IS_CLANG.
>
> [1] https://www.kernel.org/doc/html/latest/kbuild/llvm.html
> [2] https://bugs.llvm.org/show_bug.cgi?id=38063
>
> Signed-off-by: Tiezhu Yang
I don't know if Nick will have any comments but for me:
Acked-by: Nathan Chancellor
I have added this patch and
On Thu, Mar 04, 2021 at 11:48:09AM +0800, Tiezhu Yang wrote:
> On 03/04/2021 10:02 AM, Nathan Chancellor wrote:
> > On Thu, Mar 04, 2021 at 09:15:44AM +0800, Tiezhu Yang wrote:
> > > When build kernel with Clang [1]:
> > >
> > > $ make CC=clang loongson3_defcon
On Thu, Mar 04, 2021 at 09:15:44AM +0800, Tiezhu Yang wrote:
> When build kernel with Clang [1]:
>
> $ make CC=clang loongson3_defconfig
> $ make CC=clang
>
> there exists the following error:
>
> Checking missing-syscalls for O32
> CALLscripts/checksyscalls.sh
> error: ABI 'o32' is not
F v5 from
> C code is as follows:
>
> - gcc + binutils as -> requires gcc 5.0+ (but 7.0+ for full support)
> - clang + binutils as -> requires binutils 2.35.2+
> - clang + integrated as -> OK
>
> Signed-off-by: Masahiro Yamada
Reviewed-by: Nathan Chancellor
On Thu, Mar 04, 2021 at 03:33:32AM +0900, Masahiro Yamada wrote:
> Documentation/process/changes.rst defines the minimum assembler version
> (binutils version), but we have never checked it in the build time.
>
> Kbuild never invokes 'as' directly because all assembly files in the
> kernel tree
uot;${LLVM}" = 1
> echo $?
> 1
>
> $ test -n "${LLVM}"
> $ echo $?
> 1
>
> Signed-off-by: Masahiro Yamada
Yes, there is not too much point of checking if $(LLVM) is set or not
because we already check for the other tools.
Reviewed-by: Nathan Chancel
h binutils
> 2.23.0
> $ scripts/tool-version.sh foo
> foo: unknown tool
>
> Signed-off-by: Masahiro Yamada
Reviewed-by: Nathan Chancellor
Two comments below.
> ---
>
> scripts/cc-version.sh | 20 +---
> scripts/ld-version.sh | 11
On Thu, Feb 25, 2021 at 08:58:55PM +, David Howells wrote:
> From: Eric Snowberg
>
> Add a new Kconfig option called SYSTEM_REVOCATION_KEYS. If set,
> this option should be the filename of a PEM-formated file containing
> X.509 certificates to be included in the default blacklist keyring.
>
On Wed, Mar 03, 2021 at 08:38:06PM +0900, Masahiro Yamada wrote:
> On Wed, Mar 3, 2021 at 1:02 PM Nathan Chancellor wrote:
> >
> > Hi Bernhard,
> >
> > I have added the ClangBuiltLinux mailing list, kbuild mailing list, and
> > Masahiro and Nick to CC. Maybe ld-ve
Hi Bernhard,
I have added the ClangBuiltLinux mailing list, kbuild mailing list, and
Masahiro and Nick to CC. Maybe ld-version.sh and cc-version.sh should be
added to a MAINTAINERS entry to make sure we get CC'd (I can send one
along tomorrow).
On Tue, Mar 02, 2021 at 11:12:11PM +0100, Bernhard
.
Signed-off-by: Nathan Chancellor
---
Makefile | 4
1 file changed, 4 deletions(-)
diff --git a/Makefile b/Makefile
index f9b54da2fca0..c20f0ad8be73 100644
--- a/Makefile
+++ b/Makefile
@@ -568,10 +568,6 @@ ifneq ($(CROSS_COMPILE),)
CLANG_FLAGS+= --target=$(notdir $(CROSS_COMPILE
does not depend on the value of '--prefix='.
Sharing commands to reproduce issues becomes a little bit easier without
a '--prefix=' value because that '--prefix=' value is specific to a
user's machine due to it being an absolute path.
Signed-off-by: Nathan Chancellor
---
Makefile | 4 ++--
1 file
;).
Fixes: 14b3d926a22b ("[POWERPC] 4xx: update 440EP(x)/440GR(x) identical PVR
issue workaround")
Link: https://github.com/ClangBuiltLinux/linux/issues/1316
Signed-off-by: Nathan Chancellor
---
arch/powerpc/kernel/prom.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a
it is worthwhile since commit 889b3c1245de ("compiler: remove
CONFIG_OPTIMIZE_INLINING entirely").
Fixes: 11550dc0a00b ("powerpc/fadump: reuse crashkernel parameter for fadump
memory reservation")
Link: https://github.com/ClangBuiltLinux/linux/issues/1300
Signed-off-by: Nathan Chancel
On Sat, Feb 27, 2021 at 11:49:36PM -0700, Nathan Chancellor wrote:
> On Sun, Feb 28, 2021 at 12:15:16PM +0900, Masahiro Yamada wrote:
> > On Sun, Feb 28, 2021 at 3:41 AM Masahiro Yamada
> > wrote:
> > >
> > > This commit reverts 0bf6276392e9 ("x32: Wa
On Sun, Feb 28, 2021 at 12:15:16PM +0900, Masahiro Yamada wrote:
> On Sun, Feb 28, 2021 at 3:41 AM Masahiro Yamada wrote:
> >
> > This commit reverts 0bf6276392e9 ("x32: Warn and disable rather than
> > error if binutils too old").
> >
> > The help text in arch/x86/Kconfig says enabling the X32
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