From 8657fbd810b8bd3fc98cd9752bcc6be5d944e4fa Mon Sep 17 00:00:00 2001
From: xushiwei <x@goplus.org>
Date: Mon, 15 Jul 2024 14:55:00 +0800
Subject: [PATCH 1/2] xtool: llvm InstallNameTool

---
 xtool/env/llvm/llvm.go                |  6 +++
 xtool/llvm/install_name_tool/rpath.go | 56 +++++++++++++++++++++++++++
 2 files changed, 62 insertions(+)
 create mode 100644 xtool/llvm/install_name_tool/rpath.go

diff --git a/xtool/env/llvm/llvm.go b/xtool/env/llvm/llvm.go
index 06fc35c1..82d0d13e 100644
--- a/xtool/env/llvm/llvm.go
+++ b/xtool/env/llvm/llvm.go
@@ -23,6 +23,7 @@ import (
 	"strings"
 
 	"github.com/goplus/llgo/xtool/clang"
+	"github.com/goplus/llgo/xtool/llvm/install_name_tool"
 	"github.com/goplus/llgo/xtool/llvm/llvmlink"
 	"github.com/goplus/llgo/xtool/nm"
 )
@@ -87,4 +88,9 @@ func (e *Env) Nm() *nm.Cmd {
 	return nm.New(bin)
 }
 
+func (e *Env) InstallNameTool() *install_name_tool.Cmd {
+	bin := filepath.Join(e.BinDir(), "llvm-install-name-tool")
+	return install_name_tool.New(bin)
+}
+
 // -----------------------------------------------------------------------------
diff --git a/xtool/llvm/install_name_tool/rpath.go b/xtool/llvm/install_name_tool/rpath.go
new file mode 100644
index 00000000..c1cdfccb
--- /dev/null
+++ b/xtool/llvm/install_name_tool/rpath.go
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package install_name_tool
+
+import (
+	"io"
+	"os/exec"
+)
+
+// Cmd represents a install_name_tool command.
+type Cmd struct {
+	app string
+
+	Stdout io.Writer
+	Stderr io.Writer
+}
+
+// New creates a new install_name_tool command.
+func New(app string) *Cmd {
+	if app == "" {
+		app = "install_name_tool"
+	}
+	return &Cmd{app: app}
+}
+
+type Change struct {
+	Old string
+	New string
+}
+
+// Change changes dependent shared library install name.
+func (p *Cmd) Change(dylib string, chgs ...Change) error {
+	args := make([]string, len(chgs)*3+1)
+	for _, chg := range chgs {
+		args = append(args, "-change", chg.Old, chg.New)
+	}
+	args = append(args, dylib)
+	cmd := exec.Command(p.app, args...)
+	cmd.Stdout = p.Stdout
+	cmd.Stderr = p.Stderr
+	return cmd.Run()
+}

From 93bac6f26fe22fe1cf534ce6b94c22deba8a79b9 Mon Sep 17 00:00:00 2001
From: xushiwei <x@goplus.org>
Date: Mon, 15 Jul 2024 15:02:29 +0800
Subject: [PATCH 2/2] install_name_tool: ChangeToRpath

---
 xtool/llvm/install_name_tool/rpath.go | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/xtool/llvm/install_name_tool/rpath.go b/xtool/llvm/install_name_tool/rpath.go
index c1cdfccb..744d196c 100644
--- a/xtool/llvm/install_name_tool/rpath.go
+++ b/xtool/llvm/install_name_tool/rpath.go
@@ -19,6 +19,7 @@ package install_name_tool
 import (
 	"io"
 	"os/exec"
+	"path/filepath"
 )
 
 // Cmd represents a install_name_tool command.
@@ -37,20 +38,30 @@ func New(app string) *Cmd {
 	return &Cmd{app: app}
 }
 
+// Change represents a dependent shared library install name change.
 type Change struct {
 	Old string
 	New string
 }
 
 // Change changes dependent shared library install name.
-func (p *Cmd) Change(dylib string, chgs ...Change) error {
+func (p *Cmd) Change(target string, chgs ...Change) error {
 	args := make([]string, len(chgs)*3+1)
 	for _, chg := range chgs {
 		args = append(args, "-change", chg.Old, chg.New)
 	}
-	args = append(args, dylib)
+	args = append(args, target)
 	cmd := exec.Command(p.app, args...)
 	cmd.Stdout = p.Stdout
 	cmd.Stderr = p.Stderr
 	return cmd.Run()
 }
+
+// ChangeToRpath changes dependent shared library install name to @rpath.
+func (p *Cmd) ChangeToRpath(target string, dylibDeps ...string) error {
+	chgs := make([]Change, len(dylibDeps))
+	for i, dep := range dylibDeps {
+		chgs[i] = Change{Old: dep, New: "@rpath/" + filepath.Base(dep)}
+	}
+	return p.Change(target, chgs...)
+}