libgit2 / libgit2/libgit2sharp

System.BadImageFormatException: Method has no body on CentOS

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Description

Reproduction steps

I use CAKE to automate build process. I run my build script on CentOS and it throws an exception

To reproduce the issue, try to create an instance of the 'Repository' class.
I've created a test project reproducing similar error, but on MacOS.

I also use CAKE script, but the original one is more complex than the test one, but in any way the library also throws similar exception related to native methods.

...
var repo = new Repository("./.git");
...
Actual behavior
Error: System.AggregateException: One or more errors occurred. ---> System.BadImageFormatException: Method has no body
  at LibGit2Sharp.Core.Proxy.git_repository_open (System.String path) [0x00008] in <b59d5da32f8541b2a767004d8bddc22b>:0 
  at LibGit2Sharp.Repository..ctor (System.String path, LibGit2Sharp.RepositoryOptions options, LibGit2Sharp.Repository+RepositoryRequiredParameter requiredParameter) [0x002ee] in <b59d5da32f8541b2a767004d8bddc22b>:0 
  at LibGit2Sharp.Repository..ctor (System.String path) [0x00000] in <b59d5da32f8541b2a767004d8bddc22b>:0 
  at Submission#0.<<Initialize>>b__0_3 () [0x0000d] in <c937322efd9e45229071df73bf4f662f>:0 
  at Cake.Core.CakeTaskBuilderExtensions+<>c__DisplayClass17_0.<Does>b__0 (Cake.Core.ICakeContext context) [0x00000] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Cake.Core.CakeTaskBuilderExtensions+<>c__DisplayClass20_0.<Does>b__0 (Cake.Core.ICakeContext x) [0x00000] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Cake.Core.CakeTask.Execute (Cake.Core.ICakeContext context) [0x00066] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Cake.Core.DefaultExecutionStrategy.ExecuteAsync (Cake.Core.CakeTask task, Cake.Core.ICakeContext context) [0x000ee] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Cake.Core.CakeEngine.ExecuteTaskAsync (Cake.Core.ICakeContext context, Cake.Core.IExecutionStrategy strategy, System.Diagnostics.Stopwatch stopWatch, Cake.Core.CakeTask task, Cake.Core.CakeReport report) [0x00131] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Cake.Core.CakeEngine.RunTask (Cake.Core.ICakeContext context, Cake.Core.IExecutionStrategy strategy, Cake.Core.CakeTask task, System.String target, System.Diagnostics.Stopwatch stopWatch, Cake.Core.CakeReport report) [0x00124] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Cake.Core.CakeEngine.RunTargetAsync (Cake.Core.ICakeContext context, Cake.Core.IExecutionStrategy strategy, Cake.Core.ExecutionSettings settings) [0x00338] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Cake.Scripting.BuildScriptHost.RunTargetAsync (System.String target) [0x0009f] in <52bc22bce5254240ba373b3cf23da1ab>:0 
  at Cake.Core.Scripting.ScriptHost.RunTarget (System.String target) [0x0000d] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Submission#0+<<Initialize>>d__0.MoveNext () [0x00150] in <c937322efd9e45229071df73bf4f662f>:0 
  at Microsoft.CodeAnalysis.Scripting.ScriptExecutionState.RunSubmissionsAsync[TResult] (System.Collections.Immutable.ImmutableArray`1[T] precedingExecutors, System.Func`2[T,TResult] currentExecutor, System.Runtime.CompilerServices.StrongBox`1[T] exceptionHolderOpt, System.Func`2[T,TResult] catchExceptionOpt, System.Threading.CancellationToken cancellationToken) [0x00186] in <3ee4bd870c1146d59b98317e4bbdcbe8>:0 
  at Microsoft.CodeAnalysis.Scripting.Script`1[T].RunSubmissionsAsync (Microsoft.CodeAnalysis.Scripting.ScriptExecutionState executionState, System.Collections.Immutable.ImmutableArray`1[T] precedingExecutors, System.Func`2[T,TResult] currentExecutor, System.Func`2[T,TResult] catchExceptionOpt, System.Threading.CancellationToken cancellationToken) [0x000a8] in <3ee4bd870c1146d59b98317e4bbdcbe8>:0 
   --- End of inner exception stack trace ---
  at System.Threading.Tasks.Task.ThrowIfExceptional (System.Boolean includeTaskCanceledExceptions) [0x00011] in <3d1438d9da1e4fe0b915f807d1ba56bd>:0 
  at System.Threading.Tasks.Task.Wait (System.Int32 millisecondsTimeout, System.Threading.CancellationToken cancellationToken) [0x00043] in <3d1438d9da1e4fe0b915f807d1ba56bd>:0 
  at System.Threading.Tasks.Task.Wait () [0x00000] in <3d1438d9da1e4fe0b915f807d1ba56bd>:0 
  at Cake.Scripting.Roslyn.RoslynScriptSession.Execute (Cake.Core.Scripting.Script script) [0x001a7] in <52bc22bce5254240ba373b3cf23da1ab>:0 
  at Cake.Core.Scripting.ScriptRunner.Run (Cake.Core.Scripting.IScriptHost host, Cake.Core.IO.FilePath scriptPath, System.Collections.Generic.IDictionary`2[TKey,TValue] arguments) [0x00358] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Cake.Commands.BuildCommand.Execute (Cake.CakeOptions options) [0x0003f] in <52bc22bce5254240ba373b3cf23da1ab>:0 
  at Cake.CakeApplication.Run (Cake.CakeOptions options) [0x00015] in <52bc22bce5254240ba373b3cf23da1ab>:0 
  at Cake.Program.Main () [0x000d1] in <52bc22bce5254240ba373b3cf23da1ab>:0 
---> (Inner Exception #0) System.BadImageFormatException: Method has no body
File name: 'LibGit2Sharp'
  at LibGit2Sharp.Core.Proxy.git_repository_open (System.String path) [0x00008] in <b59d5da32f8541b2a767004d8bddc22b>:0 
  at LibGit2Sharp.Repository..ctor (System.String path, LibGit2Sharp.RepositoryOptions options, LibGit2Sharp.Repository+RepositoryRequiredParameter requiredParameter) [0x002ee] in <b59d5da32f8541b2a767004d8bddc22b>:0 
  at LibGit2Sharp.Repository..ctor (System.String path) [0x00000] in <b59d5da32f8541b2a767004d8bddc22b>:0 
  at Submission#0.<<Initialize>>b__0_3 () [0x0000d] in <c937322efd9e45229071df73bf4f662f>:0 
  at Cake.Core.CakeTaskBuilderExtensions+<>c__DisplayClass17_0.<Does>b__0 (Cake.Core.ICakeContext context) [0x00000] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Cake.Core.CakeTaskBuilderExtensions+<>c__DisplayClass20_0.<Does>b__0 (Cake.Core.ICakeContext x) [0x00000] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Cake.Core.CakeTask.Execute (Cake.Core.ICakeContext context) [0x00066] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Cake.Core.DefaultExecutionStrategy.ExecuteAsync (Cake.Core.CakeTask task, Cake.Core.ICakeContext context) [0x000ee] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Cake.Core.CakeEngine.ExecuteTaskAsync (Cake.Core.ICakeContext context, Cake.Core.IExecutionStrategy strategy, System.Diagnostics.Stopwatch stopWatch, Cake.Core.CakeTask task, Cake.Core.CakeReport report) [0x00131] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Cake.Core.CakeEngine.RunTask (Cake.Core.ICakeContext context, Cake.Core.IExecutionStrategy strategy, Cake.Core.CakeTask task, System.String target, System.Diagnostics.Stopwatch stopWatch, Cake.Core.CakeReport report) [0x00124] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Cake.Core.CakeEngine.RunTargetAsync (Cake.Core.ICakeContext context, Cake.Core.IExecutionStrategy strategy, Cake.Core.ExecutionSettings settings) [0x00338] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Cake.Scripting.BuildScriptHost.RunTargetAsync (System.String target) [0x0009f] in <52bc22bce5254240ba373b3cf23da1ab>:0 
  at Cake.Core.Scripting.ScriptHost.RunTarget (System.String target) [0x0000d] in <1a12afcf649f4de8ab5d15d82d4f6310>:0 
  at Submission#0+<<Initialize>>d__0.MoveNext () [0x00150] in <c937322efd9e45229071df73bf4f662f>:0 
  at Microsoft.CodeAnalysis.Scripting.ScriptExecutionState.RunSubmissionsAsync[TResult] (System.Collections.Immutable.ImmutableArray`1[T] precedingExecutors, System.Func`2[T,TResult] currentExecutor, System.Runtime.CompilerServices.StrongBox`1[T] exceptionHolderOpt, System.Func`2[T,TResult] catchExceptionOpt, System.Threading.CancellationToken cancellationToken) [0x00186] in <3ee4bd870c1146d59b98317e4bbdcbe8>:0 
  at Microsoft.CodeAnalysis.Scripting.Script`1[T].RunSubmissionsAsync (Microsoft.CodeAnalysis.Scripting.ScriptExecutionState executionState, System.Collections.Immutable.ImmutableArray`1[T] precedingExecutors, System.Func`2[T,TResult] currentExecutor, System.Func`2[T,TResult] catchExceptionOpt, System.Threading.CancellationToken cancellationToken) [0x000a8] in <3ee4bd870c1146d59b98317e4bbdcbe8>:0 <---
Expected behavior

The constructor returns an instance of the Repository

Version of LibGit2Sharp (release number or SHA1)

v0.25.3

Operating system(s) tested; .NET runtime tested
  • CentOS Linux release 7.5.1804 (Core)
  • Mono
Mono JIT compiler version 5.16.0.187 (tarball Mon Oct  8 08:52:21 UTC 2018)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
	TLS:           __thread
	SIGSEGV:       altstack
	Notifications: epoll
	Architecture:  amd64
	Disabled:      none
	Misc:          softdebug 
	Interpreter:   yes
	LLVM:          yes(3.6.0svn-mono-/)
	GC:            sgen (concurrent by default)

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by inspecting LibGit2Sharp.Core.Proxy.git_repository_open and the Repository constructor shown in the stack trace. Reproduce the failure with LibGit2Sharp v0.25.3 on CentOS 7.5 using Mono 5.16.0.187 and compare the native-method behavior with the linked test project. Done means creating a Repository instance succeeds without BadImageFormatException.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
backend, operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
30/100

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