libgit2 / libgit2/libgit2sharp

System.BadImageFormatException: Method has no body on CentOS

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まだ誰も着手していません。

主要言語
C#
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説明

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)

コントリビューションガイド

コントリビューションガイドを開く

はじめの一歩

  1. issue を最後まで読み、次にプロジェクトのコントリビューションガイドを読みます。
  2. 着手することを issue にコメントします — 二人が同じ作業をするのを防げます。
  3. リポジトリをフォークし、ブランチを切って変更します。
  4. issue 番号を参照したプルリクエストを送ります。

調査の方向性

まず、LibGit2Sharp.Core.Proxy.git_repository_open と、スタックトレースに示されている Repository コンストラクターを調査します。Mono 5.16.0.187 を使用する CentOS 7.5 上で LibGit2Sharp v0.25.3 によって失敗を再現し、ネイティブメソッドの動作をリンク先のテストプロジェクトと比較します。Repository インスタンスを BadImageFormatException なしで正常に作成できれば完了です。

索引モデルが issue の本文から書いたものです。

評価

技術スタック
csharp
領域
backend, operating-systems
issue の種類
バグ
難易度
4/5
見積もり時間
3〜5日
活発さ
停滞
明瞭さ
おおむね明確
初心者へのやさしさ
30/100

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