From f097efc195429fe250d1d065fc6e5bfccff3b025 Mon Sep 17 00:00:00 2001
From: chai2010 <chaishushan@gmail.com>
Date: Sun, 7 Jan 2018 02:04:44 +0800
Subject: [PATCH] =?UTF-8?q?ch2-07:=20=E5=AE=9E=E7=8E=B0=E4=B8=80=E4=B8=AA?=
 =?UTF-8?q?=E4=BE=8B=E5=AD=90?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .gitignore                           |  6 +++
 examples/ch2-07/hello-so/Makefile    |  8 ++++
 examples/ch2-07/hello-so/_test_so.c  |  7 ++++
 examples/ch2-07/hello-so/main.go     | 11 +++++
 examples/ch2-07/hello-so/say-hello.h | 60 ++++++++++++++++++++++++++++
 5 files changed, 92 insertions(+)
 create mode 100644 examples/ch2-07/hello-so/Makefile
 create mode 100644 examples/ch2-07/hello-so/_test_so.c
 create mode 100644 examples/ch2-07/hello-so/main.go
 create mode 100644 examples/ch2-07/hello-so/say-hello.h

diff --git a/.gitignore b/.gitignore
index 21bafdf..6e5cd1c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,9 @@ _obj
 
 # macOS
 .DS_Store
+
+*.so
+*.dll
+*.obj
+*.o
+a.out
diff --git a/examples/ch2-07/hello-so/Makefile b/examples/ch2-07/hello-so/Makefile
new file mode 100644
index 0000000..68d7737
--- /dev/null
+++ b/examples/ch2-07/hello-so/Makefile
@@ -0,0 +1,8 @@
+default:
+	go build -buildmode=c-shared -o say-hello.so main.go
+	gcc -Wall _test_so.c ./say-hello.so
+	./a.out
+
+clean:
+	-rm *.so
+	-rm *.out
diff --git a/examples/ch2-07/hello-so/_test_so.c b/examples/ch2-07/hello-so/_test_so.c
new file mode 100644
index 0000000..889e666
--- /dev/null
+++ b/examples/ch2-07/hello-so/_test_so.c
@@ -0,0 +1,7 @@
+#include "say-hello.h"
+#include <stdio.h>
+
+int main() {
+	SayHello("gopher");
+	return 0;
+}
diff --git a/examples/ch2-07/hello-so/main.go b/examples/ch2-07/hello-so/main.go
new file mode 100644
index 0000000..d95e599
--- /dev/null
+++ b/examples/ch2-07/hello-so/main.go
@@ -0,0 +1,11 @@
+package main
+
+import "C"
+import "fmt"
+
+func main() {}
+
+//export SayHello
+func SayHello(name *C.char) {
+	fmt.Printf("hello %s!\n", C.GoString(name))
+}
diff --git a/examples/ch2-07/hello-so/say-hello.h b/examples/ch2-07/hello-so/say-hello.h
new file mode 100644
index 0000000..0446c5c
--- /dev/null
+++ b/examples/ch2-07/hello-so/say-hello.h
@@ -0,0 +1,60 @@
+/* Created by "go tool cgo" - DO NOT EDIT. */
+
+/* package command-line-arguments */
+
+/* Start of preamble from import "C" comments.  */
+
+
+
+
+/* End of preamble from import "C" comments.  */
+
+
+/* Start of boilerplate cgo prologue.  */
+#line 1 "cgo-gcc-export-header-prolog"
+
+#ifndef GO_CGO_PROLOGUE_H
+#define GO_CGO_PROLOGUE_H
+
+typedef signed char GoInt8;
+typedef unsigned char GoUint8;
+typedef short GoInt16;
+typedef unsigned short GoUint16;
+typedef int GoInt32;
+typedef unsigned int GoUint32;
+typedef long long GoInt64;
+typedef unsigned long long GoUint64;
+typedef GoInt64 GoInt;
+typedef GoUint64 GoUint;
+typedef __SIZE_TYPE__ GoUintptr;
+typedef float GoFloat32;
+typedef double GoFloat64;
+typedef float _Complex GoComplex64;
+typedef double _Complex GoComplex128;
+
+/*
+  static assertion to make sure the file is being used on architecture
+  at least with matching size of GoInt.
+*/
+typedef char _check_for_64_bit_pointer_matching_GoInt[sizeof(void*)==64/8 ? 1:-1];
+
+typedef struct { const char *p; GoInt n; } GoString;
+typedef void *GoMap;
+typedef void *GoChan;
+typedef struct { void *t; void *v; } GoInterface;
+typedef struct { void *data; GoInt len; GoInt cap; } GoSlice;
+
+#endif
+
+/* End of boilerplate cgo prologue.  */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+extern void SayHello(char* p0);
+
+#ifdef __cplusplus
+}
+#endif