On Mon, May 6, 2019 at 10:37 AM Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx> wrote: > > The kheaders archive consisting of the kernel headers used for compiling > bpf programs is in /proc. However there is concern that moving it here > will make it permanent. Let us move it to /sys/kernel as discussed [1]. > > [1] https://lore.kernel.org/patchwork/patch/1067310/#1265969 > > Suggested-by: Steven Rostedt <rostedt@xxxxxxxxxxx> > Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx> > --- > This patch applies on top of the previous patch that was applied to the > driver tree: > https://lore.kernel.org/patchwork/patch/1067310/ > > v2->v3: Fixed sysfs file mode nit (Greg). > v1->v2: Fixed some kconfig nits. > > init/Kconfig | 16 ++++----- > kernel/Makefile | 4 +-- > kernel/{gen_ikh_data.sh => gen_kheaders.sh} | 2 +- > kernel/kheaders.c | 40 +++++++++------------ > 4 files changed, 26 insertions(+), 36 deletions(-) > rename kernel/{gen_ikh_data.sh => gen_kheaders.sh} (98%) > > diff --git a/init/Kconfig b/init/Kconfig > index 26a364a95b57..c3661991b089 100644 > --- a/init/Kconfig > +++ b/init/Kconfig > @@ -579,15 +579,13 @@ config IKCONFIG_PROC > This option enables access to the kernel configuration file > through /proc/config.gz. > > -config IKHEADERS_PROC > - tristate "Enable kernel header artifacts through /proc/kheaders.tar.xz" > - depends on PROC_FS > - help > - This option enables access to the kernel header and other artifacts that > - are generated during the build process. These can be used to build eBPF > - tracing programs, or similar programs. If you build the headers as a > - module, a module called kheaders.ko is built which can be loaded on-demand > - to get access to the headers. > +config IKHEADERS > + tristate "Enable kernel headers through /sys/kernel/kheaders.tar.xz" I suggested "depends on SYSFS" twice, both in v1 and v2. https://lore.kernel.org/patchwork/patch/1069806/#1266147 https://lore.kernel.org/patchwork/patch/1070005/#1266279 > + help > + This option enables access to the in-kernel headers that are generated during > + the build process. These can be used to build eBPF tracing programs, > + or similar programs. If you build the headers as a module, a module called > + kheaders.ko is built which can be loaded on-demand to get access to headers. > > config LOG_BUF_SHIFT > int "Kernel log buffer size (16 => 64KB, 17 => 128KB)" -- Best Regards Masahiro Yamada
