mirror of
https://github.com/go-gitea/gitea.git
synced 2024-08-27 06:37:30 +02:00
62 lines
1.7 KiB
Go
62 lines
1.7 KiB
Go
|
// Copyright 2018 The Go Authors. All rights reserved.
|
||
|
// Use of this source code is governed by a BSD-style
|
||
|
// license that can be found in the LICENSE file.
|
||
|
|
||
|
// +build ignore
|
||
|
|
||
|
// mkasm_darwin.go generates assembly trampolines to call libSystem routines from Go.
|
||
|
//This program must be run after mksyscall.go.
|
||
|
package main
|
||
|
|
||
|
import (
|
||
|
"bytes"
|
||
|
"fmt"
|
||
|
"io/ioutil"
|
||
|
"log"
|
||
|
"os"
|
||
|
"strings"
|
||
|
)
|
||
|
|
||
|
func main() {
|
||
|
in1, err := ioutil.ReadFile("syscall_darwin.go")
|
||
|
if err != nil {
|
||
|
log.Fatalf("can't open syscall_darwin.go: %s", err)
|
||
|
}
|
||
|
arch := os.Args[1]
|
||
|
in2, err := ioutil.ReadFile(fmt.Sprintf("syscall_darwin_%s.go", arch))
|
||
|
if err != nil {
|
||
|
log.Fatalf("can't open syscall_darwin_%s.go: %s", arch, err)
|
||
|
}
|
||
|
in3, err := ioutil.ReadFile(fmt.Sprintf("zsyscall_darwin_%s.go", arch))
|
||
|
if err != nil {
|
||
|
log.Fatalf("can't open zsyscall_darwin_%s.go: %s", arch, err)
|
||
|
}
|
||
|
in := string(in1) + string(in2) + string(in3)
|
||
|
|
||
|
trampolines := map[string]bool{}
|
||
|
|
||
|
var out bytes.Buffer
|
||
|
|
||
|
fmt.Fprintf(&out, "// go run mkasm_darwin.go %s\n", strings.Join(os.Args[1:], " "))
|
||
|
fmt.Fprintf(&out, "// Code generated by the command above; DO NOT EDIT.\n")
|
||
|
fmt.Fprintf(&out, "\n")
|
||
|
fmt.Fprintf(&out, "// +build go1.12\n")
|
||
|
fmt.Fprintf(&out, "\n")
|
||
|
fmt.Fprintf(&out, "#include \"textflag.h\"\n")
|
||
|
for _, line := range strings.Split(in, "\n") {
|
||
|
if !strings.HasPrefix(line, "func ") || !strings.HasSuffix(line, "_trampoline()") {
|
||
|
continue
|
||
|
}
|
||
|
fn := line[5 : len(line)-13]
|
||
|
if !trampolines[fn] {
|
||
|
trampolines[fn] = true
|
||
|
fmt.Fprintf(&out, "TEXT ·%s_trampoline(SB),NOSPLIT,$0-0\n", fn)
|
||
|
fmt.Fprintf(&out, "\tJMP\t%s(SB)\n", fn)
|
||
|
}
|
||
|
}
|
||
|
err = ioutil.WriteFile(fmt.Sprintf("zsyscall_darwin_%s.s", arch), out.Bytes(), 0644)
|
||
|
if err != nil {
|
||
|
log.Fatalf("can't write zsyscall_darwin_%s.s: %s", arch, err)
|
||
|
}
|
||
|
}
|