does not build natively on arm64 ubuntu linux

[RobertHenry6bev]

The

runtime/src/coreclr/pal/src/CMakeLists.txt

Line 116 in 279ce14

add_compile_options(-Wa,--divide)

contains the line:
add_compile_options(-Wa,--divide)
which is triggered for GNU CXX invocations.

Unfortunately, the gnu assembler only accepts the --divide flag for i386 style processor targets.

This means that the runtime does not build out of the box natively on ubuntu arm64 machines.

[ghost]

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Issue Details

---

The

runtime/src/coreclr/pal/src/CMakeLists.txt

Line 116 in 279ce14

add_compile_options(-Wa,--divide)

contains the line:
add_compile_options(-Wa,--divide)
which is triggered for GNU CXX invocations.

Unfortunately, the gnu assembler only accepts the --divide flag for i386 style processor targets.

This means that the runtime does not build out of the box natively on ubuntu arm64 machines.

Author:	RobertHenry6bev
Assignees:	-
Labels:	area-Infrastructure-coreclr, untriaged
Milestone:	-

[janvorli]

Thank you for reporting this. I am just curious, do you have a reason for using GNU C++ instead of clang? While we try to maintain the ability to compile using GNU C++, we don't use it for our builds.

[RobertHenry6bev]

I use gcc out of inertia. I will switch to clang, for now. I suspect that more work has gone into gcc-11 (and gcc-10) than clang for the arm64 port, but can not back that up with any hard data.

…

On Tue, May 18, 2021 at 7:56 AM Jan Vorlicek ***@***.***> wrote: Thank you for reporting this. I am just curious, do you have a reason for using GNU C++ instead of clang? While we try to maintain the ability to compile using GNU C++, we don't use it for our builds. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#52914 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABBLLY2HQ5TBKPKKRVJIROTTOJ5YLANCNFSM45CVZV3Q> .