golang生成c-shared so供c语言或者golang调用到例子
本文内容纲要：
1.golang生成c-shared类型到so
建立文件夹hello,创建main.go文件，内容如下
packagemain
import"C"
funcmain(){}
//exportHello
funcHello()string{
return"Hello"
}
//exportTest
funcTest(){
println("exportTest")
}
生成so脚本文件，命令行：
exportGOARCH="386"
exportGOBIN="/home/ender/下载/go/bin"
exportGOEXE=""
exportGOHOSTARCH="386"
exportGOHOSTOS="linux"
exportGOOS="linux"
exportGOPATH="/home/ender/go:/home/ender/下载/goproject"
exportGORACE=""
exportGOROOT="/home/ender/下载/go"
exportGOTOOLDIR="/home/ender/下载/go/pkg/tool/linux_386"
exportGCCGO="gccgo"
exportGO386=""
exportCC="gcc"
exportGOGCCFLAGS="-fPIC-m32-pthread-fmessage-length=0-fdebug-prefix-map=/tmp/go-build128906296=/tmp/go-build-gno-record-gcc-switches"
exportCXX="g++"
exportCGO_ENABLED="1"
exportPKG_CONFIG="pkg-config"
exportCGO_CFLAGS="-g-O2"
exportCGO_CPPFLAGS=""
exportCGO_CXXFLAGS="-g-O2"
exportCGO_FFLAGS="-g-O2"
exportCGO_LDFLAGS="-g-O2"
$GOBIN/gobuild-x-v-ldflags"-s-w"-buildmode=c-shared-olibhello.so main.go
成生libhello.solibhello.h文件
2.c语言调用libhello.so
把libhello.so拷贝到/usr/lib中用于运行
新建一个文件夹hello_test,把libhello.solibhello.h拷贝到文件夹hello_test中
把libhello.h中到GoString类型更改为_GoString
创建main.c,内容如下
#include<stdio.h>
#include"libhello.h"
voidmain()
{
_GoStringstr;
str=Hello();
Test();
printf("%d\n",str.n);
}
编译命令如下：gccmain.c-ot1-I./-L./-lhello
3.golang调用libhello.so
创建main.go文件内容如下：
packagemain
/*
#include<stdio.h>
#include"libhello.h"
#cgolinuxCFLAGS:-L./-I./
#cgolinuxLDFLAGS:-L./-I./-lhello
*/
import"C"
import(
"fmt"
)
funcmain(){
str:=C.Hello()
C.Test()
fmt.Println(str)
}
生成脚本文件b.sh内容如下
exportGOARCH="386"
exportGOBIN="/home/ender/下载/go/bin"
exportGOEXE=""
exportGOHOSTARCH="386"
exportGOHOSTOS="linux"
exportGOOS="linux"
exportGOPATH="/home/ender/go:/home/ender/下载/goproject"
exportGORACE=""
exportGOROOT="/home/ender/下载/go"
exportGOTOOLDIR="/home/ender/下载/go/pkg/tool/linux_386"
exportGCCGO="gccgo"
exportGO386=""
exportCC="gcc"
exportGOGCCFLAGS="-fPIC-m32-pthread-fmessage-length=0-fdebug-prefix-map=/tmp/go-build128906296=/tmp/go-build-gno-record-gcc-switches"
exportCXX="g++"
exportCGO_ENABLED="1"
exportPKG_CONFIG="pkg-config"
exportCGO_CFLAGS="-g-O2"
exportCGO_CPPFLAGS=""
exportCGO_CXXFLAGS="-g-O2"
exportCGO_FFLAGS="-g-O2"
exportCGO_LDFLAGS="-g-O2"
$GOBIN/gobuild-o./testmain.go
b.sh需要sudochmod777b.sh后执行
./test
./t1
运行
本文内容总结：
原文链接：https://www.cnblogs.com/coolyylu/p/7008074.html