On Mon, Sep 12, 2022 at 6:42 PM Florian Eckert <fe@xxxxxxxxxx> wrote: > > Hello Masahiro, > > thanks for your feedback. > > > https://patchwork.kernel.org/project/linux-kbuild/patch/20220828024003.28873-6-masahiroy@xxxxxxxxxx/ > > lands, nobody cannot reference KBUILD_BUILD_TIMESTAMP, > > then this whack-a-mole game will end. > > I was not aware of that problem. Thanks for the link. > > I understood that this is a bad idea to create the timestamp for proc > like this! > But how does it look in principle to offer the build timestamp in proc > for reading? > You have only made your point about creating the timestamp but not about > reading it out via the proc directory. > > So far the timestamp is only readable as a string via dmesg. init/version.c is the only file that can depend on the output of the 'date' command. You can follow what 'linux_proc_banner' does. Define it in init/version.c, and declare it somewhere in a header file. > Best regards > > Florian -- Best Regards Masahiro Yamada
