ghost
commented
8 months ago Tagging subscribers to 'os-ios': @steveisok, @akoeplinger, @kotlarmilos See info in area-owners.md if you want to be subscribed.
Issue Details
### Description We use a polygon clipping library (Clipper2) which is available as a NuGet package and whose source is here on Github. When calling a method in the library to inflate a large polygon, the .net runtime crashes. It appears to be a native crash - the Visual Studio debugger does not intercept it, and I therefore cannot get a helpful stack trace for the crash. The native stuff that is dumped to the output window is below. I am no expert on this low-level stuff and would appreciate any help from looking at the debug output as to where things might be going wrong. The library is mostly doing number-crunching. Its full source can be forked at https://github.com/AngusJohnson/Clipper2/. ### Reproduction Steps This code creates a large polygon and calls the InflatePaths method in the library to expand the polygon. var paths = new PathsD(); var polygon = new PathD(); polygon.AddRange(new PointD[] { new PointD(-8470.4501953125, -42813.28125), new PointD(-8460.7470703125, -42814.30078125), new PointD(-8440.5146484375, -42820.4609375), new PointD(-8420.0205078125, -42825.6875), new PointD(-8399.310546875, -42829.984375), new PointD(-8378.4248046875, -42833.3359375), new PointD(-8357.4091796875, -42835.73046875), new PointD(-8336.3046875, -42837.17578125), new PointD(-8315.15625, -42837.65234375), new PointD(-8294.0087890625, -42837.17578125), new PointD(-8272.904296875, -42835.73046875), new PointD(-8251.8876953125, -42833.3359375), new PointD(-8231.001953125, -42829.984375), new PointD(-8210.2919921875, -42825.6875), new PointD(-8189.798828125, -42820.4609375), new PointD(-8169.56591796875, -42814.30078125), new PointD(-8149.63525390625, -42807.234375), new PointD(-8130.0478515625, -42799.26953125), new PointD(-8110.84375, -42790.42578125), new PointD(-8092.0634765625, -42780.71484375), new PointD(-8073.74462890625, -42770.1640625), new PointD(-8055.92626953125, -42758.80078125), new PointD(-8038.64501953125, -42746.63671875), new PointD(-8021.93505859375, -42733.69921875) , new PointD(-8005.83203125, -42720.02734375), new PointD(-7990.3681640625, -42705.63671875), new PointD(-7975.576171875, -42690.55859375), new PointD(-7961.4853515625, -42674.8359375), new PointD(-7948.12451171875, -42658.48828125), new PointD(-7935.52099609375, -42641.5546875), new PointD(-7923.7001953125, -42624.0703125), new PointD(-7912.68603515625, -42606.078125), new PointD(-7902.5, -42587.6015625), new PointD(-7893.16357421875, -42568.69140625), new PointD(-7884.6953125, -42549.3828125), new PointD(-7877.11181640625, -42529.70703125), new PointD(-7870.42822265625, -42509.71875), new PointD(-7864.65673828125, -42489.45703125), new PointD(-7859.8095703125, -42468.94921875), new PointD(-7855.8955078125, -42448.2578125), new PointD(-7852.92236328125, -42427.41015625), new PointD(-7850.8955078125, -42406.453125), new PointD(-7849.81884765625, -42385.43359375), new PointD(-7849.0029296875, -42371.94921875), new PointD(-7849.0029296875, -42012.6640625), new PointD(-7849.0029296875, -41318.671875), new PointD(-8224.318359375, -40734.03125), new PointD(-8492.20703125, -40526.49609375), new PointD(-8609.970703125, -40434.828125), new PointD(-8811.7705078125, -40277.3125), new PointD(-9790.8564453125, -40277.3125), new PointD(-9026.5986328125, -40790.921875), new PointD(-9027.2783203125, -40791.44140625), new PointD(-9029.970703125, -40792.84765625), new PointD(-9027.005859375, -40794.21875), new PointD(-9027.822265625, -40795.77734375), new PointD(-9026.9111328125, -40796.8046875), new PointD(-9028.0400390625, -40796.8359375), new PointD(-9024.7216796875, -40798.8203125), new PointD(-9025.673828125, -40802.96875), new PointD(-9022.1513671875, -40804.66796875), new PointD(-9025.197265625, -40807.984375), new PointD(-9025.224609375, -40809.875), new PointD(-9017.21484375, -40822.0625), new PointD(-9017.9501953125, -40826.51953125), new PointD(-9014.9580078125, -40830.203125), new PointD(-9013.326171875, -40836.69921875), new PointD(-9009.1923828125, -40838.5390625), new PointD(-9009.369140625, -40841.125), new PointD(-9006.486328125, -40842.79296875), new PointD(-9006.5673828125, -40846.52734375), new PointD(-9001.658203125, -40853.26171875), new PointD(-9047.294921875, -41015.08984375), new PointD(-9048.568359375, -41014.8203125), new PointD(-9066.6923828125, -41005.09765625), new PointD(-9085.611328125, -40997.03125), new PointD(-9105.1748046875, -40990.69140625), new PointD(-9125.2265625, -40986.125), new PointD(-9145.6025390625, -40983.375), new PointD(-9166.14453125, -40982.453125), new PointD(-9186.6865234375, -40983.375), new PointD(-9207.0634765625, -40986.125), new PointD(-9227.1142578125, -40990.69140625), new PointD(-9246.677734375, -40997.03125) , new PointD(-9265.59765625, -41005.09765625), new PointD(-9283.7216796875, -41014.8203125), new PointD(-9300.9052734375, -41026.125), new PointD(-9317.009765625, -41038.9296875), new PointD(-9331.9091796875, -41053.12109375), new PointD(-9345.478515625, -41068.59375), new PointD(-9357.611328125, -41085.22265625), new PointD(-9368.2099609375, -41102.87109375), new PointD(-9377.1875, -41121.40234375), new PointD(-9384.470703125, -41140.671875), new PointD(-9390, -41160.51171875), new PointD(-9393.73046875, -41180.78125), new PointD(-9395.6298828125, -41201.30078125), new PointD(-9395.6826171875, -41221.91796875), new PointD(-9393.88671875, -41242.45703125), new PointD(-9390.255859375, -41262.76171875), new PointD(-9388.34375, -41269.80859375), new PointD(-9254.806640625, -41225.50390625), new PointD(-9246.5263671875, -41223.62109375), new PointD(-9230.2265625, -41220.1015625), new PointD(-9213.6455078125, -41218.3359375), new PointD(-9196.970703125, -41218.3359375), new PointD(-9180.3896484375, -41220.1015625), new PointD(-9164.08984375, -41223.62109375), new PointD(-9148.2548828125, -41228.8515625), new PointD(-9133.0615234375, -41235.73046875), new PointD(-9118.6845703125, -41244.1875), new PointD(-9105.2841796875, -41254.12109375), new PointD(-9093.8017578125, -41264.2265625), new PointD(-9093.013671875, -41265.421875), new PointD(-9082.009765625, -41277.9609375), new PointD(-9072.3984375, -41291.60546875), new PointD(-9064.2890625, -41306.1953125), new PointD(-9061.708984375, -41311.69140625), new PointD(-8998.6123046875, -41463.6875), new PointD(-8992.357421875, -41478.72265625), new PointD(-8900.16015625, -41700.05078125), new PointD(-8731.5400390625, -41968.6875), new PointD(-8534.0908203125, -42289.3125), new PointD(-8437.814453125, -42444.76171875), new PointD(-8470.4501953125, -42813.28125) }); paths.Add(polygon); var solutionPolygons = Clipper2Lib.Clipper.InflatePaths(paths, 0.5, Clipper2Lib.JoinType.Round, Clipper2Lib.EndType.Polygon); ### Expected behavior No crash ### Actual behavior `================================================================= Got a SIGSEGV while executing native code. This usually indicates a fatal error in the mono runtime or one of the native libraries used by your application. ================================================================= An error has occurred in the native fault reporting. Some diagnostic information will be unavailable. ================================================================= Native stacktrace: ================================================================= 0x104c2e38c - /private/var/containers/Bundle/Application/12CD011F-D59A-49E7-BC70-A94732C290A0/appname6.app/appname6 : GlobalizationNative_InitICUFunctions 0x104c19488 - /private/var/containers/Bundle/Application/12CD011F-D59A-49E7-BC70-A94732C290A0/appname6.app/appname6 : GlobalizationNative_InitICUFunctions 0x104bfd9e4 - /private/var/containers/Bundle/Application/12CD011F-D59A-49E7-BC70-A94732C290A0/appname6.app/appname6 : GlobalizationNative 94732C290A0/appname6.app/appname6 : 0x1028929b8 - /private/var/containers/Bundle/Application/12CD011F-D59A-49E7-BC70-A94732C290A0/appname6.app/appname6 : 0x1028a3a84 - /private/var/containers/Bundle/Application/12CD011F-D59A-49E7-BC70-A94732C290A0/appname6.app/appname6 : 0x1028a3d10 - /private/var/containers/Bundle/Application/12CD011F-D59A-49E7-BC70-A94732C290A0/appname6.app/appname6 : 0x1028acb48 - /private/var/containers/Bundle/Application/12CD011F-D59A-49E7-BC70-A94732C290A0/appname6.app/appname6 : 0x1028c6e6c - /private/var/containers/Bundle/Application/12CD011F-D59A-49E7-BC70-A94732C290A0/appname6.app/appname6 : 0x1028f7634 - /private/var/containers/Bundle/Application/12CD011F-D59A-49E7-BC70-A94732C290A0/appname6.app/appname6 : 0x1047c91f8 - /private/var/containers/Bundle/Application/12CD011F-D59A-49E7-BC70-A94732C290A0/appname6.app/appname6 : 0x104c009d0 - /private/var/containers/Bundle/Application/12CD011F-D59A-49E7-BC70-A94732C290A0/appname6.app/appname6 : Globalizat Native stacktrace: ================================================================= 0x104c2e38c - /private/var/containers/Bundle/Application/12CD011F-D59A-49E7-BC70-A94732C290A0/appname6.app/appname6 : GlobalizationNative_InitICUFunctions 0x104c19488 - /private/var/containers/Bundle/Application/12CD011F-D59A-49E7-BC70-A94732C290A0/appname6.app/appname6 : GlobalizationNative_InitICUFunctions 0x104bfd9e4 - /private/var/containers/Bundle/Application/12CD011F-D59A-49E7-BC70-A94732C290A0/appname6.app/appname6 : GlobalizationNative_InitICUFunctions 0x21a0ad214 - /usr/lib/system/libsystem_platform.dylib :
| Author: | divil5000 |
|---|---|
| Assignees: | - |
| Labels: | `untriaged`, `os-ios`, `needs-area-label` |
| Milestone: | - |
filipnavara
divil5000
akoeplinger
matouskozak
lambdageek
Description
We use a polygon clipping library (Clipper2) which is available as a NuGet package and whose source is here on Github. When calling a method in the library to inflate a large polygon, the .net runtime crashes. It appears to be a native crash - the Visual Studio debugger does not intercept it, and I therefore cannot get a helpful stack trace for the crash. The native stuff that is dumped to the output window is below.
I am no expert on this low-level stuff and would appreciate any help from looking at the debug output as to where things might be going wrong. The library is mostly doing number-crunching. Its full source can be forked at https://github.com/AngusJohnson/Clipper2/.
Reproduction Steps
This code creates a large polygon and calls the InflatePaths method in the library to expand the polygon.
Expected behavior
No crash
Actual behavior
Regression?
No response
Known Workarounds
So far I have not been able to devise a workaround.
Configuration
The code is currently being compiled for net7-ios. We cannot move to .net8-ios because that seems to have a minimum iOS version of 11, and we need to support 10.
Other information
No response