[release/9.0-staging] [mono][debugger] Fix assertion when stepping #118459
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This was referenced Aug 6, 2025
jeffschwMSFT
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Aug 7, 2025
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This triggered issues during macios bump. It will need follow up fix #118542 |
BrzVlad
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Aug 8, 2025
leecow
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Servicing-approved
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/ba-g Too generic of a timeout |
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Backport of #118458 to release/9.0-staging
Backport of #118459
/cc @thaystg
Customer Impact
This is a long standing debugger issue impacting MAUI customers that target iOS arm64. They experience a runtime crash after trying to step over from a previously hit breakpoint. We were incorrectly assuming the native offset from the breakpoint trampoline was always divisible by 4.
Customers could work around this by breaking somewhere else.
dotnet/macios#18586
#110016
Regression
[If yes, specify when the regression was introduced. Provide the PR or commit if known.]
Testing
Manually tested with the user sample.
Risk
Low risk, we copied the way that was done on amd64 to arm64.