forked from OSchip/llvm-project
72 lines
1.8 KiB
Go
72 lines
1.8 KiB
Go
|
//===- main.go - Clang compiler wrapper for building libgo ----------------===//
|
||
|
|
//
|
||
|
|
// The LLVM Compiler Infrastructure
|
||
|
|
//
|
||
|
|
// This file is distributed under the University of Illinois Open Source
|
||
|
|
// License. See LICENSE.TXT for details.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// This is a wrapper for Clang that passes invocations with -fdump-go-spec to
|
||
|
|
// GCC, and rewrites -fplan9-extensions to -fms-extensions. It is intended to
|
||
|
|
// go away once libgo's build no longer uses these flags.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"os"
|
||
|
|
"os/exec"
|
||
|
|
"strings"
|
||
|
|
)
|
||
|
|
|
||
|
|
func runproc(name string, argv []string) {
|
||
|
|
path, err := exec.LookPath(name)
|
||
|
|
if err != nil {
|
||
|
|
fmt.Fprintf(os.Stderr, "cc-wrapper: could not find %s: %v\n", name, err)
|
||
|
|
os.Exit(1)
|
||
|
|
}
|
||
|
|
|
||
|
|
proc, err := os.StartProcess(path, append([]string{name}, argv...), &os.ProcAttr{
|
||
|
|
Files: []*os.File{os.Stdin, os.Stdout, os.Stderr},
|
||
|
|
})
|
||
|
|
if err != nil {
|
||
|
|
fmt.Fprintf(os.Stderr, "cc-wrapper: could not start %s: %v\n", name, err)
|
||
|
|
os.Exit(1)
|
||
|
|
}
|
||
|
|
|
||
|
|
state, err := proc.Wait()
|
||
|
|
if err != nil {
|
||
|
|
fmt.Fprintf(os.Stderr, "cc-wrapper: could not wait for %s: %v\n", name, err)
|
||
|
|
os.Exit(1)
|
||
|
|
}
|
||
|
|
|
||
|
|
if state.Success() {
|
||
|
|
os.Exit(0)
|
||
|
|
} else {
|
||
|
|
os.Exit(1)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
newargs := make([]string, len(os.Args)-1)
|
||
|
|
for i, arg := range os.Args[1:] {
|
||
|
|
switch {
|
||
|
|
case strings.HasPrefix(arg, "-fdump-go-spec"):
|
||
|
|
runproc("gcc", os.Args[1:])
|
||
|
|
|
||
|
|
case arg == "-fplan9-extensions":
|
||
|
|
newargs[i] = "-fms-extensions"
|
||
|
|
newargs = append(newargs, "-Wno-microsoft")
|
||
|
|
|
||
|
|
default:
|
||
|
|
newargs[i] = arg
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
ccargs := strings.Split(os.Getenv("REAL_CC"), "@SPACE@")
|
||
|
|
runproc(ccargs[0], append(ccargs[1:], newargs...))
|
||
|
|
}
|