mirror of
https://github.com/b4tman/armhf-alpine-qemu.git
synced 2024-09-27 19:57:59 +00:00
91d7377a71
fixes #7 Signed-off-by: Petros Angelatos <petrosagg@gmail.com>
64 lines
1.0 KiB
Go
64 lines
1.0 KiB
Go
package main
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import (
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"log"
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"os"
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"os/exec"
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"syscall"
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)
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func crossBuildStart() {
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err := os.Remove("/bin/sh")
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if err != nil {
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log.Fatal(err)
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}
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err = os.Link("/usr/bin/resin-xbuild", "/bin/sh")
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if err != nil {
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log.Fatal(err)
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}
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}
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func crossBuildEnd() {
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err := os.Remove("/bin/sh")
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if err != nil {
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log.Fatal(err)
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}
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err = os.Link("/bin/sh.real", "/bin/sh")
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if err != nil {
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log.Fatal(err)
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}
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}
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func runShell() error {
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cmd := exec.Command("/usr/bin/qemu-arm-static", append([]string{"-0", "/bin/sh", "/bin/sh"}, os.Args[1:]...)...)
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cmd.Stdin = os.Stdin
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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return cmd.Run()
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}
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func main() {
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switch os.Args[0] {
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case "cross-build-start":
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crossBuildStart()
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case "cross-build-end":
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crossBuildEnd()
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case "/bin/sh":
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code := 0
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crossBuildEnd()
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if err := runShell(); err != nil {
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code = 1
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if exiterr, ok := err.(*exec.ExitError); ok {
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if status, ok := exiterr.Sys().(syscall.WaitStatus); ok {
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code = status.ExitStatus()
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}
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}
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}
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crossBuildStart()
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os.Exit(code)
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}
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}
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