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Log dlopen errors in opt builds #41477
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As the Engine uses `dlopen` to find the `libapp.so`, flutter/flutter#59834 can happen which will prevent `dlopen` from finding the binary. In theory this should be mitigated by flutter#9762, but an internal customer observed errors where `dlopen` is not found. The additional logging here can help to rule out that hypothesis. For Googlers, see b/276657840 for more details.
zanderso
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Apr 25, 2023
| if (handle_ == nullptr) { | ||
| FML_DLOG(ERROR) << "Could not open library '" << path << "' due to error '" | ||
| << ::dlerror() << "'."; | ||
| FML_LOG(ERROR) << "Could not open library '" << path << "' due to error '" |
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Since this will add a little misleading log spam on systems where falling back to the fully qualified path is expected, let's file an issue and add a TODO() here to shift this back to a DLOG when the investigation is complete.
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…125549) flutter/engine@87f5f4e...321f801 2023-04-26 [email protected] Log dlopen errors in opt builds (flutter/engine#41477) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-engine-flutter-autoroll Please CC [email protected],[email protected],[email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
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This reverts commit 321f801. This didn't seem to help with debugging b/276657840. Fixes flutter/flutter#125523.
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This reverts commit 321f801. This didn't seem to help with debugging b/276657840. Fixes flutter/flutter#125523. [C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style
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This reverts commit 321f801. This didn't seem to help with debugging b/276657840. Fixes flutter/flutter#125523. [C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style
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As the Engine uses
dlopento find thelibapp.so, flutter/flutter#59834 can happen which will preventdlopenfrom finding the binary. In theory this should be mitigated by #9762, but an internal customer observed errors that could be related.The additional logging here can help to rule out that hypothesis. For Googlers, see b/276657840 for more details.
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