Using Shared Objects and Dynamic Sinked Objects in Go

Using Shared Objects and Dynamic Sinked Objects in Go

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tags: go,c

Makefile

dynamic:
> rm -f libarith.dylib
> gcc -c -fPIC -Iinclude src/arith.c
> gcc -dynamiclib -o libarith.dylib arith.o
> rm -f arith.o

shared:
> rm -f libarith.so
> gcc -c -fPIC -Iinclude src/arith.c
> gcc -shared -Wl -o libarith.so arith.o
> rm -f arith.o

Usage in Go

package main

/*
#cgo CFLAGS: -Iinclude
#cgo LDFLAGS: -L. -larith
#include "arith.h"
*/
import "C"
import (
	"fmt"
)

func main() {
	fmt.Println("Sum", C.add(5, 4))
	fmt.Println("Diff", C.sub(5, 4))
	fmt.Println("Product", C.mul(5, 4))
}