t; Another thing I noticed with this series is there is no entries added to
> MAINTAINERS. Who is going to be responsible for maintaining this code?
>
We are going to add the following as the fifth patch in v3:
diff --git a/MAINTAINERS b/MAINTAINERS
index a097afd76..55438cb90 100644
--- a
Hi Nathan,
Thanks for your review! See some of my responses below inline. Other
comments, including those to [1/4] and [4/4], are acknowledged and will be
updated in v3.
On 2024-10-01 20:10, Nathan Chancellor wrote:
> ...
> > maximum value supported by Clang is 32767. According to local experimen
Hi Nathan,
Thanks for all the comments!
On 2024-10-01 23:53, Nathan Chancellor wrote:
> Hi Wentao,
>
> I took this series for a spin on next-20241001 with LLVM 19.1.0 using a
> distribution configuration tailored for a local development VM using
> QEMU. You'll notice on the rebase for 6.12-rc1 bu
On 2024-09-05 06:41, Peter Zijlstra wrote:
> On Wed, Sep 04, 2024 at 11:32:41PM -0500, Wentao Zhang wrote:
>> From: Wentao Zhang
>>
>> This series adds support for building x86-64 kernels with Clang's Source-
>> based Code Coverage[1] in order to facilitate Modifie
Set ARCH_HAS_* options to "y" in kconfig and include section description in
linker script.
Signed-off-by: Wentao Zhang
Reviewed-by: Chuck Wolber
Tested-by: Chuck Wolber
---
arch/x86/Kconfig | 2 ++
arch/x86/kernel/vmlinux.lds.S | 2 ++
2 files changed, 4 insertions(+)
]
Link: https://lore.kernel.org/lkml/20210407211704.367039-1-mo...@google.com/ [2]
Signed-off-by: Wentao Zhang
Reviewed-by: Chuck Wolber
Tested-by: Chuck Wolber
---
Makefile | 3 +
arch/Kconfig | 1 +
include/asm-generic/vmlinux.lds.h | 36 +
ker
https://en.wikipedia.org/wiki/Modified_condition%2Fdecision_coverage [1]
Link: https://digital-library.theiet.org/content/journals/10.1049/sej.1994.0025
[2]
Link:
https://discourse.llvm.org/t/rfc-coverage-new-algorithm-and-file-format-for-mc-dc/76798
[3]
Link:
https://clang.llvm.org/docs/Sourc
ot;).
Signed-off-by: Wentao Zhang
Reviewed-by: Chuck Wolber
Tested-by: Chuck Wolber
---
arch/x86/crypto/Makefile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 53b4a2778..57f3d4921 100644
--- a/arch/x86/crypto/Makefile
+
From: Wentao Zhang
This series adds support for building x86-64 kernels with Clang's Source-
based Code Coverage[1] in order to facilitate Modified Condition/Decision
Coverage (MC/DC)[2] that provably correlates to source code for all levels
of compiler optimization.
The newly added kernel
[2]
[1]
https://discourse.llvm.org/t/rfc-coverage-new-algorithm-and-file-format-for-mc-dc/76798
[2]
https://clang.llvm.org/docs/SourceBasedCodeCoverage.html#mc-dc-instrumentation
Signed-off-by: Wentao Zhang
Signed-off-by: Chuck Wolber
---
Makefile| 6 ++
kernel/llvm-cov/Kco
Disable instrumentation in the same areas that were disabled for
kernel/gcov/
Signed-off-by: Wentao Zhang
Signed-off-by: Chuck Wolber
---
arch/x86/boot/Makefile| 1 +
arch/x86/boot/compressed/Makefile | 1 +
arch/x86/entry/vdso/Makefile | 1 +
arch/x86/platform/efi
/lkml/20210407211704.367039-1-mo...@google.com/
Signed-off-by: Wentao Zhang
Signed-off-by: Chuck Wolber
---
Makefile | 3 +
arch/Kconfig | 1 +
arch/x86/Kconfig | 1 +
arch/x86/kernel/vmlinux.lds.S | 2 +
include/asm
om/
[5] https://github.com/xlab-uiuc/linux-mcdc
[6] https://lpc.events/event/18/contributions/1718/
[7]
https://clang.llvm.org/docs/SourceBasedCodeCoverage.html#mc-dc-instrumentation
Wentao Zhang (3):
[RFC PATCH 1/3] llvm-cov: add Clang's Source-based Code Coverage
support
[RFC PATCH 2/3
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