The go:linkname must refer to declared function or variable error occurs in Golang when “using an older version of golang.org/x/sys package.”
To fix the go:linkname must refer to declared function or variable error, you need to “update the golang.org/x/sys” package using this command: “go get -u golang.org/x/sys”.
After upgrading to the Go 1.18 version, you might get //go:linkname must refer to declared function or variable error while running the go build command.
You need to make sure that the name you provide in the go:linkname directive corresponds to a valid function or variable that has been declared in your program or an external package.
Ensure that you spell the name correctly and that the function or variable has been properly declared and exported.
If you are trying to link to a function or variable in an external package, ensure the function or variable is exported. Exported names start with a capital letter in Go, so if the name of the function or variable you are trying to link to starts with a lowercase letter, it is not exported.
If you are trying to link to a function or variable in an external package, make sure that you are using the correct package name in the go:linkname directive.
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Krunal Lathiya is a seasoned Computer Science expert with over eight years in the tech industry. He boasts deep knowledge in Data Science and Machine Learning. Versed in Python, JavaScript, PHP, R, and Golang. Skilled in frameworks like Angular and React and platforms such as Node.js. His expertise spans both front-end and back-end development. His proficiency in the Python language stands as a testament to his versatility and commitment to the craft.