How Do I Create a Release Binary in Go Without Debug Information?

Creating Release Binary in Go

In the world of programming, it's often desirable to create different versions of a binary, such as a debug version for debugging purposes and a release version for use in production. In C, this can be achieved by compiling with different flags to exclude or include debug symbols in the resulting binary.

How to Do It in Go?

Go handles this differently than C. Unlike C, Go does not typically have a dedicated debug or release version of a binary. Instead, by default, Go compiles both symbol and debug information into the binary.

Stripping Debug Information

If you need to create a binary without debug information, Go provides a way to strip it using the ldargs flag. By passing "-s -w" to the go build command, you can tell Go to remove both symbol and debug information from the binary.

For example:

go build -ldflags "-s -w" main.go

This will create a binary called main that does not contain any debug or symbol information, making it smaller and potentially faster. It should be noted that once debug information is stripped, it cannot be recovered.

When to Strip Debug Information

Stripping debug information can be beneficial in several scenarios:

• Production Deployments: When deploying an application to a production environment, it's preferable to use a binary without debug information as it can reduce the binary size and potentially improve performance.
• Binary Size Constraints: If you have constraints on the maximum size of the binary, stripping debug information can help you meet those requirements.
• Security Concerns: Debug information can contain sensitive information, so stripping it can be important in protecting the security of your application.

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