) $($*-y) $($*-m)), \
> + $(@:.mod=.o))) \
> + $(undefined_syms) echo >> $@
I find the indendation to be a readability improvement. Thanks for the
patch.
Reviewed-by: Nick Desaulniers
Tested-by: Nick Desaulniers
>
> $(obj)/%.mod: $(obj)/%.o FORCE
>
ove use an `@` before the invocation of
`rm`. I don't know what that's about, but that or even this patch
doesn't affect my ability to build negatively. LGTM
Reviewed-by: Nick Desaulniers
Tested-by: Nick Desaulniers
>
> $(multi-used-m): FORCE
> $(call if_changed,link_multi-m)
&g
ce: unexpected
> end of section
>
> I haven't had a chance to take a closer look yet, but some of these
> are probably related to
> https://github.com/ClangBuiltLinux/linux/issues/1192. However, I can
> reproduce these also with ToT Clang, not just with Clang 11.
>
> Sami
--
Thanks,
~Nick Desaulniers
ClangBuiltLinux/linux/issues/1250
> Signed-off-by: Fangrui Song
Thanks for the patch.
Reviewed-by: Nick Desaulniers
Jessica, would you mind adding when applying:
Cc:
as I suspect we might want this fixed in stable tree's branches, too.
It might of interest to add:
Link: https://sourcew
> From: Mahesh Kumar Kalikot Veetil
>
> Modules with a large number of compilation units may be
> exceeding AR and LD command argument list. Handle this gracefully by
> writing the long argument list in a file. The command line options
> read from file are inserted in place of the original @file
:
>
> mm/filemap.c: In function ‘filemap_map_pages’:
> mm/filemap.c:2963:16: error: assignment of member ‘address’ in read-only
> object
> 2963 | vmf->address += (xas.xa_index - last_pgoff) << PAGE_SHIFT;
> |^~
> make[1]: *** [scripts/Makefile.build
t; although I am not sure if building the kernel with ICC is well-supported.
>
> [1] https://lkml.org/lkml/2021/1/10/250
> [2] https://lkml.org/lkml/2021/1/12/1708
> [3] https://lkml.org/lkml/2021/1/12/1533
Consider Nathan's request to use lore links rather than lkml.org links.
https://l
issue? I did a quick skim of
https://github.com/google/syzkaller/blob/master/docs/syzbot.md, but it
looks like communication with syzbot is based on commit messages?
--
Thanks,
~Nick Desaulniers
On Thu, Jan 14, 2021 at 6:36 AM Jonathan Corbet wrote:
>
> On Wed, 13 Jan 2021 17:19:59 -0800
> Nick Desaulniers wrote:
>
> > Patch looks fine, but `make -j htmldocs` seems to be taking forever
> > for me so I can't render it. Is this a known issue?
> >
>
plicitly, use
> it in an equality comparison so the shift is used as an integer value.
>
> Fixes: 4d1dbfe6cbec ("MIPS: atomic: Emit Loongson3 sync workarounds within
> asm")
> Fixes: a91f2a1dba44 ("MIPS: cmpxchg: Omit redundant barriers for Loongson3")
> Reported
; -MAJOR=$(echo __clang_major__ | $compiler -E -x c - | tail -n 1)
> -MINOR=$(echo __clang_minor__ | $compiler -E -x c - | tail -n 1)
> -PATCHLEVEL=$(echo __clang_patchlevel__ | $compiler -E -x c - | tail -n 1)
> -printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL
> diff --git a/scripts/gcc-version.sh b/scripts/gcc-version.sh
> deleted file mode 100755
> index ae353432539b..
> --- a/scripts/gcc-version.sh
> +++ /dev/null
> @@ -1,20 +0,0 @@
> -#!/bin/sh
> -# SPDX-License-Identifier: GPL-2.0
> -#
> -# gcc-version gcc-command
> -#
> -# Print the gcc version of `gcc-command' in a 5 or 6-digit form
> -# such as `29503' for gcc-2.95.3, `30301' for gcc-3.3.1, etc.
> -
> -compiler="$*"
> -
> -if [ ${#compiler} -eq 0 ]; then
> - echo "Error: No compiler specified." >&2
> - printf "Usage:\n\t$0 \n" >&2
> - exit 1
> -fi
> -
> -MAJOR=$(echo __GNUC__ | $compiler -E -x c - | tail -n 1)
> -MINOR=$(echo __GNUC_MINOR__ | $compiler -E -x c - | tail -n 1)
> -PATCHLEVEL=$(echo __GNUC_PATCHLEVEL__ | $compiler -E -x c - | tail -n 1)
> -printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL
> --
> 2.27.0
>
--
Thanks,
~Nick Desaulniers
4)'p' << 40 | \
+ (u64)'r' << 32 | \
+ (u64)'o' << 24 | \
+ (u64)'f' << 16 | \
+ (u64)'r' << 8 | \
+ (u64)129)
+#else
+ #define LLVM_PRF_MAGIC \
+ ((u64)255 << 56 | \
+ (u64)'l' << 48 | \
+ (u64)'p' << 40 | \
+ (u64)'r' << 32 | \
+ (u64)'o' << 24 | \
+ (u64)'f' << 16 | \
+ (u64)'R' << 8 | \
+ (u64)129)
+#endif
--
Thanks,
~Nick Desaulniers
On Wed, Jan 13, 2021 at 5:19 PM Nick Desaulniers
wrote:
>
> Patch looks fine, but `make -j htmldocs` seems to be taking forever
> for me so I can't render it. Is this a known issue?
>
> $ make -j htmldocs
Just took a while, lots of warning spew (but not from this addition AF
> - Corrected documentation, re PGO flags when using LTO, based on Fangrui
> Song's comments.
> v3: - Added change log section based on Sedat Dilek's comments.
> v4: - Remove non-x86 Makfile changes and se "hweight64" instead of using our
> own popcount i
t; + * - riscv
> + - Maintained
> + - ``CC=clang``
> + * - s390
> + - Maintained
> + - ``CC=clang``
> + * - x86
> + - Supported
> + - ``LLVM=1``
> +
> Getting Help
>
>
>
> base-commit: 7c53f6b671f4aba70ff15e1b05148b10d58c2837
> --
> 2.30.0
>
--
Thanks,
~Nick Desaulniers
Sedat,
Thanks for testing, and congrats on https://lwn.net/Articles/839772/.
I always appreciate you taking the time to help test my work, and
other Clang+Linux kernel patches!
On Wed, Jan 13, 2021 at 1:24 PM Sedat Dilek wrote:
>
> On Wed, Jan 13, 2021 at 1:32 AM Nick Desaulniers
&g
On Wed, Jan 13, 2021 at 4:41 PM Nathan Chancellor
wrote:
>
> The K: entry should ensure that Nick and I always get CC'd on patches
> that touch these files but it is better to be explicit rather than
> implicit.
>
> Signed-off-by: Nathan Chancellor
Thanks for the patch!
On Wed, Jan 13, 2021 at 8:59 AM Josh Poimboeuf wrote:
>
> On Tue, Jan 12, 2021 at 09:01:54PM +, Mark Brown wrote:
> > On Tue, Jan 12, 2021 at 11:46:24AM -0800, Nick Desaulniers wrote:
> >
> > This:
> >
> > > when building with LLVM_IAS=1 (Clang's
Use more precise language and move the text to a region in the docs to
show that this constraint is not just for SYM_CODE_START*.
Suggested-by: Mark Brown
Suggested-by: Josh Poimboeuf
Signed-off-by: Nick Desaulniers
---
Documentation/asm-annotations.rst | 14 +-
1 file changed, 5
The following commit has been merged into the x86/entry branch of tip:
Commit-ID: bde718b7e154afc99e1956b18a848401ce8e1f8e
Gitweb:
https://git.kernel.org/tip/bde718b7e154afc99e1956b18a848401ce8e1f8e
Author:Nick Desaulniers
AuthorDate:Tue, 12 Jan 2021 11:46:24 -08:00
it
> >void __ubsan_handle_sub_overflow(void *data,
> >^
>
> Given that these are compiler inserted functions, there is not much of a
> point to having prototypes to them. If people feel shutting these
> warnings up is worthwhile, we can just add the prototypes right above
> the function definition in a follow up patch.
Same as stpcpy; it would be nice though. ;)
--
Thanks,
~Nick Desaulniers
-u from test_dwarf5_support.sh as per Masahiro.
* add a -gdwarf-5 cc-option check to Kconfig as per Jakub.
Masahiro Yamada (1):
Remove $(cc-option,-gdwarf-4) dependency from CONFIG_DEBUG_INFO_DWARF4
Nick Desaulniers (2):
Kbuild: make DWARF version a choice
Kbuild: implement support for DWARF
Signed-off-by: Masahiro Yamada
Reviewed-by: Nick Desaulniers
---
lib/Kconfig.debug | 1 -
1 file changed, 1 deletion(-)
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 78361f0abe3a..dd7d8d35b2a5 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -258,7 +258,6 @@ config
-by: Masahiro Yamada
Signed-off-by: Nick Desaulniers
---
Makefile | 14 +-
lib/Kconfig.debug | 21 -
2 files changed, 25 insertions(+), 10 deletions(-)
diff --git a/Makefile b/Makefile
index d49c3f39ceb4..656fff17b331 100644
--- a/Makefile
+++ b/Makefile
@@ -826,12
ted-by: Fangrui Song
Suggested-by: Caroline Tice
Signed-off-by: Nick Desaulniers
---
Makefile | 1 +
include/asm-generic/vmlinux.lds.h | 6 +-
lib/Kconfig.debug | 17 +
scripts/test_dwarf5_support.sh| 9 +
4 files changed,
gt; Cc: Catalin Marinas
> Cc: Florian Weimer
> Cc: Peter Zijlstra
> Cc: Linus Torvalds
> Cc: Nick Desaulniers
> Reported-by: Russell King
> Suggested-by: Arnd Bergmann
> Link: https://lore.kernel.org/r/20210105154726.gd1...@shell.armlinux.org.uk
> Signed-off-by: Will Dea
have bit 15 set, so I think this pair won't
> break the code.
> Try to hunt for R_MIPS_LO16 that have this bit set, i.e. they have
> '8', '9', 'a', 'b', 'c', 'd' or 'e' as their [15:12].
I don't think any of my R_MIPS_LO16 in that file have that bit set.
See attached.
--
Than
if ((word & 0x3) == 0) {
num += 2;
word >>= 2;
}
if ((word & 0x1) == 0)
num += 1;
return num;
}
int main() {
int x = 3;
unsigned long y = 3;
printf("%d\n%lu\n", ffs(x), __ffs(y));
return 0;
}
```
will print:
1
0
--
Thanks,
~Nick Desaulniers
e_data {
> struct type_descriptor *type;
> };
>
> +struct alignment_assumption_data {
> + struct source_location location;
> + struct source_location assumption_location;
> + struct type_descriptor *type;
> +};
> +
> #if defined(CONFIG_ARCH_SUPPORTS_INT128)
> typedef __int128 s_max;
> typedef unsigned __int128 u_max;
>
> base-commit: 7c53f6b671f4aba70ff15e1b05148b10d58c2837
> --
> 2.30.0
>
--
Thanks,
~Nick Desaulniers
://sourceware.org/binutils/docs/as/Symbol-Names.html
Link:
https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=d1bcae833b32f1408485ce69f844dcd7ded093a8
Reported-by: Arnd Bergmann
Suggested-by: Josh Poimboeuf
Suggested-by: Borislav Petkov
Signed-off-by: Nick Desaulniers
---
Changes v3 ->
33ULL);
> + value = (value + (value >> 4)) & 0x0F0F0F0F0F0F0F0FULL;
> +
> + return (int)((unsigned long long)(value * 0x0101010101010101ULL) >>
> 56);
> +}
The kernel has a portable popcnt implementation called hweight64 if
you #include ; does that work here?
https://en.wikipedia.org/wiki/Hamming_weight
--
Thanks,
~Nick Desaulniers
On Fri, 2021-01-08 at 15:58 +, Steven Price wrote:
> On 05/01/2021 05:36, Nick Fan wrote:
> > Add a basic GPU node for mt8192.
> >
> > Signed-off-by: Nick Fan
> > ---
> > This patch depends on Mediatek power and regulator support.
> >
>
Add a basic GPU node for mt8192.
Signed-off-by: Nick Fan
---
This patch depends on Mediatek power and regulator support.
Listed as following.
[1]https://lore.kernel.org/patchwork/patch/1336293/
[2]https://patchwork.kernel.org/project/linux-mediatek/list/?series=374013
[3]https
Add devicetree schema for Arm Mali Valhall GPU
Define a compatible string for the Mali Valhall GPU
for Mediatek's SoC platform.
Signed-off-by: Nick Fan
---
.../bindings/gpu/arm,mali-valhall.yaml| 252 ++
1 file changed, 252 insertions(+)
create mode 100644
> been rejected.
>
> Meaning what exactly? There's no way for clang's integrated assembler to
> even get a cmdline option to not strip .text?
I can clean that up in v5; The section symbols were not generated then
stripped; they were simply never generated.
--
Thanks,
~Nick Desaulniers
random.o
> +PGO_PROFILE_random.o := n
> obj-$(CONFIG_TTY_PRINTK) += ttyprintk.o
> obj-y += misc.o
> obj-$(CONFIG_ATARI_DSP56K) += dsp56k.o
> diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
> index e5574e506a5c..d83cacc79b1a 100644
> --- a/drivers/gpu/drm/i915/Makefile
> +++ b/drivers/gpu/drm/i915/Makefile
> @@ -168,6 +168,7 @@ i915-y += \
> i915_vma.o \
> intel_region_lmem.o \
> intel_wopcm.o
> +PGO_PROFILE_i915_query.o := n
>
> # general-purpose microcontroller (GuC) support
> i915-y += gt/uc/intel_uc.o \
I'd rather have these both sorted out before landing with PGO disabled
on these files.
--
Thanks,
~Nick Desaulniers
/binutils/2020-December/114671.html
Reported-by: Arnd Bergmann
Suggested-by: Josh Poimboeuf
Signed-off-by: Nick Desaulniers
---
Changes v2 -> v3:
* rework to use STB_LOCAL rather than STB_GLOBAL by dropping .L prefix,
as per Josh.
* rename oneline to drop STB_GLOBAL in commit message.
* add l
Hi Alexander,
I'm genuinely trying to reproduce/understand this report, questions below:
On Sat, Jan 9, 2021 at 11:15 AM Alexander Lobakin wrote:
>
> From: Nick Desaulniers
> Date: Sat, 9 Jan 2021 09:50:44 -0800
>
> > On Sat, Jan 9, 2021 at 9:11 AM Alexander Lobakin wrote:
anks for the report. Sounds like we may indeed be producing an
incorrect relocation. This is only seen for big endian triples?
Getting a way for us to deterministically reproduce would be a good
first step. Which config or configs beyond defconfig, and which
relocations specifically are you observing this with?
--
Thanks,
~Nick Desaulniers
Via:
https://lore.kernel.org/lkml/1610099389-28329-1-git-send-email-pna...@codeaurora.org/
> diff --git a/include/linux/init.h b/include/linux/init.h
> index 7b53cb3..617adcf 100644
> --- a/include/linux/init.h
> +++ b/include/linux/init.h
> @@ -300,6 +300,10 @@ void __init
ersion is not marked __init.
Interesting, I didn't know LLVM could do that. Do you have a simpler
test case? Maybe I could just fix that in LLVM. (I would guess that
when synthesizing a function from an existing function, the new
function needs to copy the original functions attributes as well).
--
Thanks,
~Nick Desaulniers
u11
or -std=gnu17, as they rely on the implicit default C language mode
when unspecified. Oops?
--
Thanks,
~Nick Desaulniers
/ClangBuiltLinux/linux/issues/1210
> Reported-by: Arnd Bergmann
> Signed-off-by: Fangrui Song
This fixes a build failure for me with clang-12 (ie. top of tree),
thanks for the patch.
Reviewed-by: Nick Desaulniers
Tested-by: Nick Desaulniers
I also see R_386_PC32 referenced in scripts/mod/m
Link: https://github.com/ClangBuiltLinux/linux/issues/1209
Link: https://reviews.llvm.org/D93783
Link: https://sourceware.org/pipermail/binutils/2020-December/114671.html
Reported-by: Arnd Bergmann
Suggested-by: Josh Poimboeuf
Acked-by: Josh Poimboeuf
Signed-off-by: Nick Desaulniers
> Since commit 83109d5d5fba ("x86/build: Warn on orphan section placement"),
Might be better to use:
commit 5a17850e251a ("arm/build: Warn on orphan section placement")
Reviewed-by: Nick Desaulniers
from macro '__typecheck'
> >(!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
> > ~~ ^ ~~
> >1 warning generated.
>
> On arm64 size_t is defined as unsigned long and on arm is it defined as
> unsigned int. So using 500U would generate the same warning on 64-bit
> platforms. Maybe the fix is to do something like: max(len, (size_t)500).
> Any better ideas?
SGTM
--
Thanks,
~Nick Desaulniers
and stop receiving emails from it, send an
> email to clang-built-linux+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/clang-built-linux/202012270950.HNbQuTpw-lkp%40intel.com.
--
Thanks,
~Nick Desaulniers
itting developers on Chrome OS a whole
> lot suddenly. Any chance it could be landed? Which tree should it go
> through?
Andrew,
Would you mind picking up this patch for us, please?
https://lore.kernel.org/lkml/20201208054646.2913063-1-mask...@google.com/
--
Thanks,
~Nick Desaulniers
Add a basic GPU node for mt8192.
Signed-off-by: Nick Fan
---
This patch depends on Mediatek power and regulator support.
Listed as following.
[1]https://lore.kernel.org/patchwork/patch/1336293/
[2]https://patchwork.kernel.org/project/linux-mediatek/list/?series=374013
[3]https
Add devicetree schema for Arm Mali Valhall GPU
Define a compatible string for the Mali Valhall GPU
for Mediatek's SoC platform.
Signed-off-by: Nick Fan
---
.../bindings/gpu/arm,mali-valhall.yaml| 252 ++
1 file changed, 252 insertions(+)
create mode 100644
Add a basic GPU node for mt8192.
Signed-off-by: Nick Fan
---
This patch depends on Mediatek power and regulator support.
Listed as following.
[1]https://lore.kernel.org/patchwork/patch/1336293/
[2]https://patchwork.kernel.org/project/linux-mediatek/list/?series=374013
[3]https
Add devicetree schema for Arm Mali Valhall GPU
Define a compatible string for the Mali Valhall GPU
for Mediatek's SoC platform.
Signed-off-by: Nick Fan
---
.../bindings/gpu/arm,mali-valhall.yaml| 252 ++
1 file changed, 252 insertions(+)
create mode 100644
Convert the Arm Valhall GPU binding to DT schema format.
Define a compatible string for the Mali Valhall GPU
for Mediatek's SoC platform.
Signed-off-by: Nick Fan
---
.../bindings/gpu/arm,mali-valhall.yaml| 252 ++
1 file changed, 252 insertions(+)
create mode 100644
Add a basic GPU node for mt8192.
Signed-off-by: Nick Fan
---
This patch depends on Mediatek power and regulator support.
Listed as following.
[1]https://lore.kernel.org/patchwork/patch/1336293/
[2]https://patchwork.kernel.org/project/linux-mediatek/list/?series=374013
[3]https
Convert the Arm Valhall GPU binding to DT schema format.
Define a compatible string for the Mali Valhall GPU
for Mediatek's SoC platform.
Signed-off-by: Nick Fan
---
.../bindings/gpu/arm,mali-valhall.yaml| 252 ++
1 file changed, 252 insertions(+)
create mode 100644
Add a basic GPU node for mt8192.
Signed-off-by: Nick Fan
---
This patch depends on Mediatek power and regulator support.
Listed as following.
[1]https://lore.kernel.org/patchwork/patch/1336293/
[2]https://patchwork.kernel.org/project/linux-mediatek/list/?series=374013
[3]https
/1209
Link: https://reviews.llvm.org/D93783
Signed-off-by: Nick Desaulniers
---
arch/x86/entry/thunk_64.S | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/x86/entry/thunk_64.S b/arch/x86/entry/thunk_64.S
index ccd32877a3c4..878816034a73 100644
--- a/arch/x86/entry
out-netiquette
>
> --
> You received this message because you are subscribed to the Google Groups
> "Clang Built Linux" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to clang-built-linux+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/clang-built-linux/20201223183606.GB29011%40zn.tnic.
--
Thanks,
~Nick Desaulniers
remove_arg_zero is declared as __must_check. Looks like it can return
-EFAULT on failure.
Cc: Masahiro Yamada
Cc: Miguel Ojeda
Reported-by: Guenter Roeck
Signed-off-by: Nick Desaulniers
---
fs/binfmt_em86.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/binfmt_em86
Ojeda
Cc: Paul Mundt
Reported-by: Guenter Roeck
Signed-off-by: Nick Desaulniers
---
arch/sh/kernel/cpu/sh4a/smp-shx3.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/sh/kernel/cpu/sh4a/smp-shx3.c
b/arch/sh/kernel/cpu/sh4a/smp-shx3.c
index f8a2bec0f260..1261dc7b8
...
scripts/Kconfig.include:40: linker 'csky-linux-gnu-ld' not found
My distro doesn't package binutils-csky-linux-gnu, is there
documentation on how to build the kernel targeting CSKY, starting with
building GNU binutils configured with CSKY emulation?
--
Thanks,
~Nick Desaulniers
On Mon, Dec 21, 2020 at 1:23 PM Arvind Sankar wrote:
>
> On Mon, Dec 21, 2020 at 11:14:39AM -0800, Nick Desaulniers wrote:
> > On Wed, Sep 2, 2020 at 7:31 PM Arvind Sankar wrote:
> > >
> > > When CONFIG_RETPOLINE is disabled, Clang uses a jump table
a_label_acntsxprint() fails, it won't assign to its
first param. In the caller, this means assigning uninitialized memory
(UB) when aa_label_acntsxprint() returns -ENOMEM for example. Thanks
for the patch.
Reviewed-by: Nick Desaulniers
>
> In aa_update_label_name(
group and stop receiving emails from it, send an
> email to clang-built-linux+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/clang-built-linux/20200903023056.3914690-1-nivedita%40alum.mit.edu.
--
Thanks,
~Nick Desaulniers
> On Dec 16, 2020, at 5:23 PM, Michał Mirosław wrote:
>
> On Wed, Dec 16, 2020 at 10:07:38PM +0000, Nick Terrell wrote:
> [...]
>> It is very large. If it helps, in the commit message I’ve provided this link
>> [0],
>> which provides the diff between upstream zs
: 3b92fa7485eb ("arm64: link with -z norelro regardless of
CONFIG_RELOCATABLE")
Reported-by: kernelci.org bot
Reported-by: Quentin Perret
Acked-by: Ard Biesheuvel
Signed-off-by: Nick Desaulniers
---
Changes V1 -> V2:
* s/relocation types/program headers/
* s/newer GNU binutils/GNU binutils 2.3
On Thu, Dec 17, 2020 at 4:01 AM Will Deacon wrote:
>
> On Wed, Dec 16, 2020 at 04:40:51PM -0800, Nick Desaulniers wrote:
> > With newer GNU binutils, linking with BFD produces warnings for vmlinux:
> > aarch64-linux-gnu-ld: warning: -z norelro ignored
> >
> Given that
oach of yours by
using unaligned loads!
Reviewed-by: Nick Desaulniers
> ---
> arch/mips/boot/compressed/decompress.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/mips/boot/compressed/decompress.c
> b/arch/mips/boot/compressed/decompress
Sòng
Fixes: 3b92fa7485eb ("arm64: link with -z norelro regardless of
CONFIG_RELOCATABLE")
Reported-by: kernelci.org bot
Reported-by: Quentin Perret
Signed-off-by: Nick Desaulniers
---
arch/arm64/Makefile | 10 +++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/
> On Dec 16, 2020, at 10:50 AM, David Sterba wrote:
>
> On Wed, Dec 16, 2020 at 11:58:07AM +1100, Herbert Xu wrote:
>> On Wed, Dec 16, 2020 at 12:48:51AM +, Nick Terrell wrote:
>>>
>>> Thanks for the advice! The first zstd patches went through Herbert’s
> On Dec 15, 2020, at 4:58 PM, Herbert Xu wrote:
>
> On Wed, Dec 16, 2020 at 12:48:51AM +0000, Nick Terrell wrote:
>>
>> Thanks for the advice! The first zstd patches went through Herbert’s tree,
>> which is
>> why I’ve sent them this way.
>
>
> On Dec 15, 2020, at 4:00 PM, Eric Biggers wrote:
>
> On Tue, Dec 15, 2020 at 08:58:52PM +0000, Nick Terrell via Linux-f2fs-devel
> wrote:
>>
>>
>>> On Dec 3, 2020, at 12:51 PM, Nick Terrell wrote:
>>>
>>> From: Nick Terrell
>>
> On Dec 3, 2020, at 12:51 PM, Nick Terrell wrote:
>
> From: Nick Terrell
>
> Please pull from
>
> g...@github.com:terrelln/linux.git tags/v7-zstd-1.4.6
>
> to get these changes. Alternatively the patchset is included.
Is it possible to get this patchset merg
On Mon, Dec 14, 2020 at 3:18 PM Alan Modra wrote:
>
> On Mon, Dec 14, 2020 at 01:44:06PM -0800, Nick Desaulniers wrote:
> > aarch64-linux-gnu-ld: warning: -z norelro ignored
> >
> > So we set the emulation mode via -maarch64elf, and our preprocessed
>
> The default l
On Tue, Oct 20, 2020 at 10:57 AM Will Deacon wrote:
>
> On Fri, 16 Oct 2020 10:53:39 -0700, Nick Desaulniers wrote:
> > With CONFIG_EXPERT=y, CONFIG_KASAN=y, CONFIG_RANDOMIZE_BASE=n,
> > CONFIG_RELOCATABLE=n, we observe the following failure when trying to
> > link the ker
On Fri, Dec 11, 2020 at 4:42 PM Nick Desaulniers
wrote:
>
> On Fri, Dec 11, 2020 at 12:57 PM Nick Desaulniers
> wrote:
> >
> > Thanks for the patch!
> >
> > Reviewed-by: Nick Desaulniers
> > Link: https://github.com/ClangBuiltLinux/linux/issues/1207
&g
On Fri, Dec 11, 2020 at 12:57 PM Nick Desaulniers
wrote:
>
> Thanks for the patch!
>
> Reviewed-by: Nick Desaulniers
> Link: https://github.com/ClangBuiltLinux/linux/issues/1207
Arnd reported another objtool warning/error from another randconfig in
https://github.com/ClangB
t; reloc generation as well.
>
> Reported-by: Arnd Bergmann
> Signed-off-by: Josh Poimboeuf
Thanks for the patch!
Reviewed-by: Nick Desaulniers
Link: https://github.com/ClangBuiltLinux/linux/issues/1207
> ---
> tools/objtool/check.c | 11 +--
> tools/objtool/elf.c
On Mon, Nov 23, 2020 at 10:57 AM Nick Desaulniers
wrote:
>
> On Mon, Nov 23, 2020 at 10:50 AM Greg Kroah-Hartman
> wrote:
> >
> > On Mon, Nov 23, 2020 at 10:31:10AM -0800, Nick Desaulniers wrote:
> > > Doesn't this depend on a v2 of
> > > https://lore.
on, like
> > lto-user-symbols.txt or .list, to make it more human-friendly?
>
> Sure, I can rename this in the next version. Does anyone have strong
> opinions about the name and/or extension?
.txt extension would be fine.
--
Thanks,
~Nick Desaulniers
/gcc~10/local-register-variables
> Signed-off-by: Anders Roxell
Link: https://github.com/ClangBuiltLinux/linux/issues/606
Reported-by: Nathan Chancellor
Reported-by: Naresh Kamboju
Reviewed-by: Nick Desaulniers
> ---
> arch/mips/lib/uncached.c | 4 +++-
> 1 file changed, 3 inse
d
not determine a symbol for? I'm curious why we're even in this loop
though, since we didn't do anything related to static calls...is
`file->static_call_list` not populated correctly? Is the final else
case from `add_jump_destinations` perhaps being hit and adding nodes
to file->static_call_list incorrectly?
--
Thanks,
~Nick Desaulniers
On Fri, Dec 4, 2020 at 9:06 AM Arvind Sankar wrote:
>
> On Thu, Dec 03, 2020 at 03:28:14PM -0800, Nick Desaulniers wrote:
> > On Thu, Dec 3, 2020 at 3:22 PM Nick Desaulniers
> > wrote:
> > >
> > > On Tue, Nov 24, 2020 at 9:28 AM Arvind Sankar
> > >
is being used, selftests will build with clang.
> ifeq (,$(LINK.c))
> override LDFLAGS =
> -override MAKEFLAGS =
> +override MAKEFLAGS = CC=$(CC)
> endif
>
> # Append kselftest to KBUILD_OUTPUT and O to avoid cluttering
> --
> 2.29.2.576.ga3fc446d84-goog
>
--
Thanks,
~Nick Desaulniers
L: modpost: Section mismatches detected.
> Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them.
> make[2]: *** [/builds/1kl9SVppm6wRdzlQ3UcQKIBaUrx/scripts/Makefile.modpost:59:
> vmlinux.symvers] Error 1
Anders sent a patch for this, too, IIRC. Once the above fixes land
upstream, we probably need to follow up on ensuring they get picked up
into the affected branches of stable.
--
Thanks,
~Nick Desaulniers
syms -d -d < test_case.i
Best of luck on that endeavor.
```
I was planning on talking about this timebomb at plumbers, but had to
cut it due to the tight time constraints we were allotted.
--
Thanks,
~Nick Desaulniers
mp;& COMPILE_TEST)
> + depends on ARCH_U300 || (ARM && COMMON_CLK && COMPILE_TEST)
> default y if MACH_U300
> select WATCHDOG_CORE
> help
> --
> 2.27.0
>
--
Thanks,
~Nick Desaulniers
On Tue, Dec 8, 2020 at 2:18 PM Arnd Bergmann wrote:
>
> On Tue, Dec 8, 2020 at 7:21 PM 'Nick Desaulniers' via Clang Built
> Linux wrote:
> >
> > On Tue, Dec 8, 2020 at 6:26 AM Arnd Bergmann wrote:
> > >
> > > On Mon, Dec 7, 2020 at 11:28 PM 'Nick Desaulni
amount of out of tree code they have. As
long as help
sell/differentiate phones, I suspect our product teams will continue
to ship full LTO in production.
--
Thanks,
~Nick Desaulniers
On Tue, Dec 8, 2020 at 6:26 AM Arnd Bergmann wrote:
>
> On Mon, Dec 7, 2020 at 11:28 PM 'Nick Desaulniers' via Clang Built
> Linux wrote:
> >
> > On Mon, Dec 7, 2020 at 2:17 PM Arnd Bergmann wrote:
> > >
> > > On Mon, Dec 7, 2020 at 11:08 PM 'Nick Desaulni
(I wonder why we don't use 4B alignment
for 32b...but 8 is a multiple of 4, so should be fine for 32b
targets).
Reviewed-by: Nick Desaulniers
Tested-by: Nick Desaulniers
Build+Boot tested aarch64 and x86_64 with ld.lld and ld.bfd. Did not
test loading builtin firmware.
> ---
> i
On Mon, Dec 7, 2020 at 2:17 PM Arnd Bergmann wrote:
>
> On Mon, Dec 7, 2020 at 11:08 PM 'Nick Desaulniers' via Clang Built
> Linux wrote:
> >
> > On Mon, Dec 7, 2020 at 1:57 PM Arnd Bergmann wrote:
>
> > >
> > > Right, looking at my latest rand
Right, looking at my latest randconfig logs, I see the same problem on x86
> builds with clang as well, though I'm not entirely sure which other
> configuration
> options are needed to trigger it.
>
> So my patch can be disregarded, but I agree this needs a better fix,
> either in clang or in the dcn driver.
If you could give https://github.com/ClangBuiltLinux/frame-larger-than
a spin again, I would appreciate any feedback.
--
Thanks,
~Nick Desaulniers
(minus Chengbin due to bounces)
On Thu, Dec 3, 2020 at 5:11 PM Nick Desaulniers wrote:
>
> Modifies CONFIG_DEBUG_INFO_DWARF4 to be a member of a choice. Adds an
> explicit CONFIG_DEBUG_INFO_DWARF2, which is the default. Does so in a
> way that's forward compatible with exis
sigh...I ran a broken script to send the series which doesn't cc folks properly.
+ lkml, linux-kbuild
(Might just resend, properly)
On Thu, Dec 3, 2020 at 5:11 PM Nick Desaulniers wrote:
>
> DWARF v5 is the latest standard of the DWARF debug info format.
>
> DWARF5 wins significan
ted-by: Fangrui Song
Suggested-by: Caroline Tice
Signed-off-by: Nick Desaulniers
---
Makefile | 1 +
include/asm-generic/vmlinux.lds.h | 6 +-
lib/Kconfig.debug | 14 ++
scripts/test_dwarf5_support.sh| 9 +
4 files changed, 29 inserti
-by: Masahiro Yamada
Signed-off-by: Nick Desaulniers
---
Makefile | 14 --
lib/Kconfig.debug | 21 -
2 files changed, 24 insertions(+), 11 deletions(-)
diff --git a/Makefile b/Makefile
index a2ded5029084..2430e1ee7c44 100644
--- a/Makefile
+++ b/Makefile
@@ -826,12
On Thu, Dec 3, 2020 at 2:56 PM Nick Desaulniers wrote:
>
> On Tue, Nov 3, 2020 at 4:17 PM Arvind Sankar wrote:
> >
> > On Tue, Nov 03, 2020 at 04:05:36PM -0800, Nick Desaulniers wrote:
> > > On Tue, Nov 3, 2020 at 4:00 PM Arvind Sankar
> > > wrote:
> >
On Thu, Dec 3, 2020 at 3:22 PM Nick Desaulniers wrote:
>
> On Tue, Nov 24, 2020 at 9:28 AM Arvind Sankar wrote:
> >
> > On Tue, Nov 03, 2020 at 04:53:43PM -0800, Nick Desaulniers wrote:
> > > DWARF v5 is the latest standard of the DWARF debug info format.
> > &g
On Tue, Nov 24, 2020 at 9:28 AM Arvind Sankar wrote:
>
> On Tue, Nov 03, 2020 at 04:53:43PM -0800, Nick Desaulniers wrote:
> > DWARF v5 is the latest standard of the DWARF debug info format.
> >
> > Feature detection of DWARF5 is onerous, especially given that we've
>
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