On Thu, 20.02.14 14:39, Holger Schurig (holgerschu...@gmail.com) wrote: > Debian Stable is still using glibc 2.13, which doesn't provide the setns(). > So we detect this and provide a tiny wrapper that issues the setns syscall > towards the kernel.
I modified your patch and commited it. The change I made is to complain if __NR_setns is not defined. I also added the right definitions for the two x86 archs in. Please test if things work now for you. > --- > configure.ac | 3 +++ > src/shared/missing.h | 13 +++++++++++++ > 2 files changed, 16 insertions(+) > > diff --git a/configure.ac b/configure.ac > index 05ee098..40162ba 100644 > --- a/configure.ac > +++ b/configure.ac > @@ -250,6 +250,9 @@ AC_CHECK_DECLS([gettid, pivot_root, name_to_handle_at], > [], [], [[#include <sys/ > m4_pattern_forbid([^_?PKG_[A-Z_]+$],[*** pkg.m4 missing, please install > pkg-config]) > > # > ------------------------------------------------------------------------------ > +AC_CHECK_FUNCS([setns]) > + > +# > ------------------------------------------------------------------------------ > have_dbus=no > AC_ARG_ENABLE(dbus, AS_HELP_STRING([--disable-dbus], [disable usage of > dbus-1 in tests])) > AS_IF([test "x$enable_dbus" != "xno"], [ > diff --git a/src/shared/missing.h b/src/shared/missing.h > index 2661285..ea87053 100644 > --- a/src/shared/missing.h > +++ b/src/shared/missing.h > @@ -28,6 +28,7 @@ > #include <fcntl.h> > #include <stdlib.h> > #include <unistd.h> > +#include <errno.h> > #include <linux/oom.h> > #include <linux/input.h> > #include <linux/if_link.h> > @@ -352,4 +353,16 @@ static inline int name_to_handle_at(int fd, const char > *name, struct file_handle > #define O_TMPFILE (__O_TMPFILE | O_DIRECTORY) > #endif > > +#ifndef HAVE_SETNS > +static inline int setns(int fd, int nstype) > +{ > +#ifdef __NR_setns > + return syscall(__NR_setns, fd, nstype); > +#else > + errno = ENOSYS; > + return -1; > +#endif > +} > +#endif > + > #endif Lennart -- Lennart Poettering, Red Hat _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel