| // Copyright 2018 syzkaller project authors. All rights reserved. |
| // Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file. |
| |
| package build |
| |
| import ( |
| "path/filepath" |
| "strings" |
| "time" |
| |
| "github.com/google/syzkaller/pkg/osutil" |
| ) |
| |
| type gvisor struct{} |
| |
| func (gvisor gvisor) build(targetArch, vmType, kernelDir, outputDir, compiler, userspaceDir, |
| cmdlineFile, sysctlFile string, config []byte) error { |
| // Bring down bazel daemon right away. We don't need it running and consuming memory. |
| defer osutil.RunCmd(10*time.Minute, kernelDir, compiler, "shutdown") |
| outBinary := "" |
| args := []string{"build", "--verbose_failures"} |
| if strings.Contains(" "+string(config)+" ", " -race ") { |
| args = append(args, "--features=race", "//runsc:runsc-race") |
| outBinary = "bazel-bin/runsc/linux_amd64_static_race_stripped/runsc-race" |
| } else { |
| args = append(args, "//runsc:runsc") |
| outBinary = "bazel-bin/runsc/linux_amd64_pure_stripped/runsc" |
| } |
| outBinary = filepath.Join(kernelDir, filepath.FromSlash(outBinary)) |
| // The 1 hour timeout is quite high. But we've seen false positives with 20 mins |
| // on the first build after bazel/deps update. Also other gvisor instances running |
| // on the same machine contribute to longer build times. |
| if _, err := osutil.RunCmd(60*time.Minute, kernelDir, compiler, args...); err != nil { |
| return err |
| } |
| if err := osutil.CopyFile(outBinary, filepath.Join(outputDir, "image")); err != nil { |
| return err |
| } |
| return nil |
| } |
| |
| func (gvisor) clean(kernelDir, targetArch string) error { |
| // Let's assume that bazel always properly handles build without cleaning (until proven otherwise). |
| return nil |
| } |