update readme, little lib

Author: kitech

.github/workflows/t1.yml

@@ -65,7 +65,7 @@ jobs:
           #server: ${{ secrets.IRCSRV }}
           #port: ${{ secrets.IRCPORT }}
           tls: true
-          channel: "#vknuts"
+          channel: "#cygo"
           nickname: gareport
           message: status ${{ matrix.platform }} ${{ job.status }} https://github.com/${{ github.repository }}/commit/${{ github.sha }}/checks?check_suite_id=  https://github.com/${{ github.repository }}/commit/${{ github.sha }}/checks/0/logs
 

readme.md

@@ -1,13 +1,40 @@
-Go compiler to C, with a generic library contains Go core features, like goroutine,channel,GC.
+Compile Go to C, with a generic library contains Go core features, like goroutine,channel,GC.
 
 That's will generate minimal binary. The farther plan is compile any Go package to C.
 
+### The pain of Go
+* Too large binary size
+* Not friendly with C
+* Builtin string/array/map no methods
+* Too verbosity error handling, not like the Go2 `try` error handling proposal
+
 ### Features
 * goroutine
 * channel
+* defer
 * GC
 * CGO
 * interface
+* closure
+* string/array/map with lot builtin methods
+* `catch` statement error handling
+
+### Install
+
+```
+cd $GOPATH
+git clone https://github.com/kitech/cygo
+cd cygo/bysrc
+go build -o cygo
+```
+
+### Example
+
+```
+./cygo ./tpkgs/hello
+cmake .
+make
+```
 
 ### Supported important syntax
 * defer
@@ -17,12 +44,16 @@ That's will generate minimal binary. The farther plan is compile any Go package
 ### Todos
 * [ ] dynamic stack resize
 * [ ] correct and more safe point for GC
+* [ ] support more OS/platforms
+* [ ] so much to do
 
 ### Supported original Go packages
 * unsafe
 * errors
 
 ### 资料
-* [ ] Let's Build A Simple Interpreter  https://github.com/rspivak/lsbasi
-* [ ] dwarf https://github.com/gimli-rs/gimli
+* minigo
+* tinygo
+* Let's Build A Simple Interpreter  https://github.com/rspivak/lsbasi
+* dwarf https://github.com/gimli-rs/gimli
 

scripts/build-bysrc-linux.sh

@@ -20,7 +20,7 @@ cp -a $GOPATH/src/github.com/kitech/goplusplus $GOPATH/src/gopp
 cp -a $PWD $GOPATH/src/
 ln -sv $PWD/xgo $GOPATH/src/
 
-cd $GOPATH/src/cxrt/bysrc
+cd $GOPATH/src/cygo/bysrc
 pwd
 
 go env

scripts/build-bysrc-macos.sh

@@ -20,7 +20,7 @@ cp -a $GOPATH/src/github.com/kitech/goplusplus $GOPATH/src/gopp
 cp -a $PWD $GOPATH/src/
 ln -sv $PWD/xgo $GOPATH/src/
 
-cd $GOPATH/src/cxrt/bysrc
+cd $GOPATH/src/cygo/bysrc
 pwd
 
 go env

xgo/xos/os.go

@@ -9,6 +9,7 @@ package xos
 #include <fcntl.h>
 #include <unistd.h>
 #include <sys/syscall.h>
+#include <sys/utsname.h>
 
 #include <sys/types.h>
 #include <dirent.h>
@@ -280,6 +281,43 @@ func Wkdir() string {
 	}
 	return s
 }
+func Tmpdir() string {
+	var s string
+	s = Getenv("TMPDIR")
+	s = ifelse(s.len == 0, "/tmp", s)
+	return s
+}
+
+type Utsname struct {
+	sysname    string
+	nodename   string
+	release    string
+	version    string
+	machine    string
+	domainname string
+}
+
+func (uto *Utsname) String() string {
+	return uto.sysname + " " + uto.nodename + " " +
+		uto.release + " " + uto.version + " " + uto.machine
+}
+
+func Uname() string {
+	uts := &C.struct_utsname{}
+	rv := C.uname(&uts)
+	if rv != 0 {
+		println(Errmsg())
+		return ""
+	}
+	uto := &Utsname{}
+	uto.sysname = gostring(uts.sysname)
+	uto.nodename = gostring(uts.nodename)
+	uto.release = gostring(uts.release)
+	uto.version = gostring(uts.version)
+	uto.machine = gostring(uts.machine)
+	// uto.domainname = gostring(uts.domainname)
+	return uto.String()
+}
 
 func Umask(mask int) int {
 	rv := C.umask(0)