From 04b8f8e8d3eacb2d3f5df51fe3ff08bd3d51326e Mon Sep 17 00:00:00 2001
From: visualfc <visualfc@gmail.com>
Date: Thu, 28 Nov 2024 12:01:11 +0800
Subject: [PATCH] c/debug: func addr and info

---
 c/debug/_demo/funcinfo/main.go | 27 +++++++++++++++++++++++++++
 c/debug/_wrap/debug.c          |  9 +++++++++
 c/debug/debug.go               | 25 +++++++++++++++++++++++++
 3 files changed, 61 insertions(+)
 create mode 100644 c/debug/_demo/funcinfo/main.go
 create mode 100644 c/debug/_wrap/debug.c
 create mode 100644 c/debug/debug.go

diff --git a/c/debug/_demo/funcinfo/main.go b/c/debug/_demo/funcinfo/main.go
new file mode 100644
index 000000000..5bfbcd91e
--- /dev/null
+++ b/c/debug/_demo/funcinfo/main.go
@@ -0,0 +1,27 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/debug"
+)
+
+type T struct {
+	n int
+}
+
+func (t *T) Demo() {
+	println(t.n)
+	addr := debug.Address()
+	c.Printf(c.Str("addr:0x%x\n"), addr)
+	var info debug.Info
+	r := debug.Addrinfo(addr, &info)
+	if r == 0 {
+		panic("not found info")
+	}
+	c.Printf(c.Str("func file:%s name:%s base:0x%x addr:0x%x\n"), info.Fname, info.Sname, info.Base, info.Saddr)
+}
+
+func main() {
+	t := &T{100}
+	t.Demo()
+}
diff --git a/c/debug/_wrap/debug.c b/c/debug/_wrap/debug.c
new file mode 100644
index 000000000..7867227dd
--- /dev/null
+++ b/c/debug/_wrap/debug.c
@@ -0,0 +1,9 @@
+#include <dlfcn.h>
+
+void *llgo_address() {
+    return __builtin_return_address(0);
+}
+
+int llgo_addrinfo(void *addr, Dl_info *info) {
+    return dladdr(addr, info);
+}
diff --git a/c/debug/debug.go b/c/debug/debug.go
new file mode 100644
index 000000000..5a98eec40
--- /dev/null
+++ b/c/debug/debug.go
@@ -0,0 +1,25 @@
+package debug
+
+import (
+	"unsafe"
+
+	"github.com/goplus/llgo/c"
+)
+
+const (
+	LLGoPackage = "link"
+	LLGoFiles   = "_wrap/debug.c"
+)
+
+type Info struct {
+	Fname *c.Char
+	Base  c.Pointer
+	Sname *c.Char
+	Saddr c.Pointer
+}
+
+//go:linkname Address C.llgo_address
+func Address() unsafe.Pointer
+
+//go:linkname Addrinfo C.llgo_addrinfo
+func Addrinfo(addr unsafe.Pointer, info *Info) c.Int