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fix building error for error: fallthrough annotation in unreachable code #100742

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Merged
merged 1 commit into from
Apr 9, 2024
Merged

fix building error for error: fallthrough annotation in unreachable code #100742

merged 1 commit into from
Apr 9, 2024

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shushanhf
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/home/qiao/work_qiao/runtime/src/coreclr/interop/comwrappers.cpp:740:21: error: fallthrough annotation in unreachable code [-Werror,-Wimplicit-fallthrough]
                    FALLTHROUGH;
                    ^
/home/qiao/work_qiao/runtime/src/native/minipal/utils.h:25:25: note: expanded from macro 'FALLTHROUGH'
#    define FALLTHROUGH [[fallthrough]]

@ghost ghost added the area-Interop-coreclr label Apr 7, 2024
@dotnet-policy-service dotnet-policy-service bot added the community-contribution Indicates that the PR has been added by a community member label Apr 7, 2024
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shushanhf commented Apr 7, 2024 •
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Hi, @jkotas
Who can help reviewing this PR?
Thanks

I find @AaronRobinsonMSFT @jkoritzinsky by https://github.com/dotnet/runtime/blob/main/docs/area-owners.md

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Is this on a Release or Debug/Checked build?

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AaronRobinsonMSFT commented Apr 7, 2024 •
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The problem here, and something the above code now doesn't handle, is this code is calling into a user defined ICustomQueryInterface.GetInterface(). The user could cast any int to CustomQueryInterfaceResult and then the above logic is flawed.

@jkotas jkotas added the NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) label Apr 7, 2024
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shushanhf commented Apr 8, 2024 •
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Is this on a Release or Debug/Checked build?

On Debug build on the LoongArch64-linux with clang-13 and arm64 linux with clang-8.
I tested it on AMD64-linux that is also failed when building the coreclr.

@shushanhf shushanhf force-pushed the build_errors branch 6 times, most recently from cfea3aa to 59b798c Compare April 8, 2024 08:09
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@shushanhf shushanhf force-pushed the build_errors branch 2 times, most recently from bb7dcec to 2a1cc85 Compare April 9, 2024 00:46
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Fix building error for `error: fallthrough annotation in unreachable …
a10ab44 
…code`

when building on debug mode on loongarch64/arm64/amd64-linux by clang<14.

Also delete `#ifndef FALLTHROUGH` block as dotnet#98336 added after dotnet#98712.
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Thank you.

@AaronRobinsonMSFT AaronRobinsonMSFT merged commit fe6dc19 into dotnet:main Apr 9, 2024
@shushanhf shushanhf deleted the build_errors branch April 9, 2024 04:17
matouskozak pushed a commit to matouskozak/runtime that referenced this pull request Apr 30, 2024
@shushanhf @matouskozak
Fix building error for `error: fallthrough annotation in unreachable …
fe576a4 
…code` (dotnet#100742)

when building on debug mode on loongarch64/arm64/amd64-linux by clang<14.

Also delete `#ifndef FALLTHROUGH` block as dotnet#98336 added after dotnet#98712.
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@AaronRobinsonMSFT AaronRobinsonMSFT AaronRobinsonMSFT approved these changes

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