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goinstall, go/build: support building cgo packages

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Fixes #1962.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4636044
This commit is contained in:
Andrew Gerrand 2011-06-17 11:15:54 +10:00
parent ca91ce2d85
commit 4340b57d88
2 changed files with 16 additions and 6 deletions
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2
src/cmd/goinstall/main.go
View File

@ -197,7 +197,7 @@ func install(pkg, parent string) {
errorf("%s: %v\n", pkg, err)
return
}
if len(dirInfo.GoFiles) == 0 {
if len(dirInfo.GoFiles)+len(dirInfo.CgoFiles) == 0 {
errorf("%s: package has no files\n", pkg)
return
}

20
src/pkg/go/build/build.go
View File

@ -11,6 +11,7 @@ import (
"fmt"
"os"
"path/filepath"
"regexp"
"runtime"
"strings"
)
@ -22,14 +23,14 @@ func Build(tree *Tree, pkg string, info *DirInfo) (*Script, os.Error) {
script: s,
path: filepath.Join(tree.SrcDir(), pkg),
}
b.obj = b.abs("_obj") + "/"
b.obj = b.abs("_obj") + string(filepath.Separator)
goarch := runtime.GOARCH
b.goarch = runtime.GOARCH
if g := os.Getenv("GOARCH"); g != "" {
goarch = g
b.goarch = g
}
var err os.Error
b.arch, err = ArchChar(goarch)
b.arch, err = ArchChar(b.goarch)
if err != nil {
return nil, err
}
@ -82,6 +83,9 @@ func Build(tree *Tree, pkg string, info *DirInfo) (*Script, os.Error) {
if info.IsCommand() {
// use the last part of the import path as binary name
_, bin := filepath.Split(pkg)
if runtime.GOOS == "windows" {
bin += ".exe"
}
targ = filepath.Join(tree.BinDir(), bin)
} else {
targ = filepath.Join(tree.PkgDir(), pkg+".a")
@ -186,6 +190,7 @@ type Cmd struct {
Args []string // command-line
Stdout string // write standard output to this file, "" is passthrough
Dir string // working directory
Env []string // environment
Input []string // file paths (dependencies)
Output []string // file paths
}
@ -199,6 +204,7 @@ func (c *Cmd) Run() os.Error {
out := new(bytes.Buffer)
cmd := exec.Command(c.Args[0], c.Args[1:]...)
cmd.Dir = c.Dir
cmd.Env = c.Env
cmd.Stdout = out
cmd.Stderr = out
if c.Stdout != "" {
@ -233,6 +239,7 @@ type build struct {
script *Script
path string
obj string
goarch string
arch string
}
@ -341,6 +348,8 @@ func (b *build) gccArgs(args ...string) []string {
return append(a, args...)
}
var cgoRe = regexp.MustCompile("[/\\:]")
func (b *build) cgo(cgofiles []string) (outGo, outObj []string) {
// cgo
// TODO(adg): CGOPKGPATH
@ -348,7 +357,7 @@ func (b *build) cgo(cgofiles []string) (outGo, outObj []string) {
gofiles := []string{b.obj + "_cgo_gotypes.go"}
cfiles := []string{b.obj + "_cgo_main.c", b.obj + "_cgo_export.c"}
for _, fn := range cgofiles {
f := b.obj + strings.Replace(fn[:len(fn)-2], "/", "_", -1)
f := b.obj + cgoRe.ReplaceAllString(fn[:len(fn)-2], "_")
gofiles = append(gofiles, f+"cgo1.go")
cfiles = append(cfiles, f+"cgo2.c")
}
@ -358,6 +367,7 @@ func (b *build) cgo(cgofiles []string) (outGo, outObj []string) {
b.add(Cmd{
Args: append([]string{"cgo", "--"}, cgofiles...),
Dir: b.path,
Env: append(os.Environ(), "GOARCH="+b.goarch),
Input: cgofiles,
Output: output,
})