How can I remove debugging information from compiled Go code to prevent decompilation?

Removing Debugging Information in Go

To avoid decompilation, it is essential to remove debugging information from compiled Go code. While the default behavior of the Go compiler (gc) includes debugging information, there are methods to remove it.

Solution using -ldflags:

Use the -ldflags flag during compilation:

go build -ldflags="-s -w"

This flag sets the linker flags to remove both the symbol table (-s) and debugging information (-w).

Solution using -trimpath:

Additionally, with Go 1.13 and above, you can use -trimpath to reduce the length of file paths stored in the executable. This can further prevent decompilation attempts.

go build -ldflags="-s -w -trimpath=/path/to/trim"

Note:

Using gccgo is not a viable solution because it requires debugging information to function properly. Removing debugging information with -g flag will result in a broken executable. Therefore, the recommended methods are -ldflags and -trimpath.

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