Find whether an assembly was compiled in Debug or Release mode

Introduction

I know two ways of accomplish this:

• Searching for the System.Diagnostics.DebuggableAttribute
• Searching for the System.Reflection.AssemblyConfigurationAttribute

• AssemblyConfigurationAttribute must be added by the programmer but is human readable.
• DebuggableAttribute is added automatically and is always present but is not human readable.

Locate the AssemblyConfigurationAttribute – this attribute can be easily interpreted: its value can either be Debug or Release.

DebuggableAttribute

If AssemblyConfigurationAttribute is not present then we must use the DebuggableAttribute to get our goal.

Since we cannot understood the DebuggableAttribute value we have to open the assembly from another tool and read this attribute content. There’s no such tool available out-of-the-box but we can easily create a Command Line tool and use a method similar to:

{codecitation class="brush: csharp; gutter: true;" width="500px"}


private bool IsAssemblyDebugBuild(string filepath)
{
return IsAssemblyDebugBuild(Assembly.LoadFile(Path.GetFullPath(filepath)));
}
private bool IsAssemblyDebugBuild(Assembly assembly)
{
foreach (var attribute in assembly.GetCustomAttributes(false))
{
var debuggableAttribute = attribute as DebuggableAttribute;
if (debuggableAttribute != null)
{
return debuggableAttribute.IsJITTrackingEnabled;
}
}
return false;
}

{/codecitation}

or (if you prefer LINQ)

{codecitation class="brush: csharp; gutter: true;" width="500px"}

private bool IsAssemblyDebugBuild(Assembly assembly)
{
return assembly.GetCustomAttributes(false).Any(x =>
(x as DebuggableAttribute) != null ?
(x as DebuggableAttribute).IsJITTrackingEnabled : false);
}
{/codecitation}

Thank you

Amal