diff options
| author | Jouni Hogander <jouni.hogander@unikie.com> | 2020-09-01 16:13:50 +0300 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2020-09-21 11:23:04 +0200 |
| commit | bbb921d248befbb1bf3970cc8d680403f255de97 (patch) | |
| tree | c3ef61c8727b2548f1fb4e80da9e3b9fe7a58b82 /pkg/build | |
| parent | 5e8f0f25faceb9346ebfb1a31d49fb4cb0b76507 (diff) | |
pkg/bisect: add ccache option
Add option to use ccache in kernel builds.
Signed-off-by: Jouni Hogander <jouni.hoegander@partner.bmw.de>
Diffstat (limited to 'pkg/build')
| -rw-r--r-- | pkg/build/build.go | 1 | ||||
| -rw-r--r-- | pkg/build/linux.go | 19 |
2 files changed, 19 insertions, 1 deletions
diff --git a/pkg/build/build.go b/pkg/build/build.go index af2aa91a5..348a18555 100644 --- a/pkg/build/build.go +++ b/pkg/build/build.go @@ -26,6 +26,7 @@ type Params struct { KernelDir string OutputDir string Compiler string + Ccache string UserspaceDir string CmdlineFile string SysctlFile string diff --git a/pkg/build/linux.go b/pkg/build/linux.go index 34a980b20..6acf6f347 100644 --- a/pkg/build/linux.go +++ b/pkg/build/linux.go @@ -65,7 +65,24 @@ func (linux) buildKernel(params *Params) error { case "ppc64le": target = "zImage" } - if err := runMake(params.KernelDir, target, "CC="+params.Compiler); err != nil { + + ccParam := params.Compiler + if params.Ccache != "" { + ccParam = params.Ccache + " " + ccParam + // Ensure CONFIG_GCC_PLUGIN_RANDSTRUCT doesn't prevent ccache usage. + // See /Documentation/kbuild/reproducible-builds.rst. + gccPluginsDir := filepath.Join(params.KernelDir, "scripts", "gcc-plugins") + if osutil.IsExist(gccPluginsDir) { + err := osutil.WriteFile(filepath.Join(gccPluginsDir, + "randomize_layout_seed.h"), + []byte("const char *randstruct_seed = "+ + "\"e9db0ca5181da2eedb76eba144df7aba4b7f9359040ee58409765f2bdc4cb3b8\";")) + if err != nil { + return err + } + } + } + if err := runMake(params.KernelDir, target, "CC="+ccParam); err != nil { return err } vmlinux := filepath.Join(params.KernelDir, "vmlinux") |