diff options
| -rw-r--r-- | nix/libstore/build.cc | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/nix/libstore/build.cc b/nix/libstore/build.cc index 17e92c68a7..29266f1dd6 100644 --- a/nix/libstore/build.cc +++ b/nix/libstore/build.cc @@ -52,7 +52,12 @@ #endif -#define CHROOT_ENABLED HAVE_CHROOT && HAVE_SYS_MOUNT_H && defined(MS_BIND) && defined(MS_PRIVATE) && defined(CLONE_NEWNS) && defined(SYS_pivot_root) +#define CHROOT_ENABLED HAVE_CHROOT && HAVE_SYS_MOUNT_H && defined(MS_BIND) && defined(MS_PRIVATE) +#define CLONE_ENABLED defined(CLONE_NEWNS) + +#if defined(SYS_pivot_root) +#define pivot_root(new_root, put_old) (syscall(SYS_pivot_root, new_root,put_old)) +#endif #if CHROOT_ENABLED #include <sys/socket.h> @@ -2005,7 +2010,7 @@ void DerivationGoal::startBuilder() - The UTS namespace ensures that builders see a hostname of localhost rather than the actual hostname. */ -#if CHROOT_ENABLED +#if __linux__ if (useChroot) { char stack[32 * 1024]; int flags = CLONE_NEWPID | CLONE_NEWNS | CLONE_NEWIPC | CLONE_NEWUTS | SIGCHLD; @@ -2186,10 +2191,8 @@ void DerivationGoal::runChild() if (mkdir("real-root", 0) == -1) throw SysError("cannot create real-root directory"); -#define pivot_root(new_root, put_old) (syscall(SYS_pivot_root, new_root, put_old)) if (pivot_root(".", "real-root") == -1) throw SysError(format("cannot pivot old root directory onto '%1%'") % (chrootRootDir + "/real-root")); -#undef pivot_root if (chroot(".") == -1) throw SysError(format("cannot change root directory to '%1%'") % chrootRootDir); |