On this day, August 31, 2021, thus sayeth Krish Jain: > Hi, could someone help with this? Still stuck. Maybe someone else has > some insight into this issue too? Or Greg or Bryan. > > Thanks > Just another friendly reminder about top posting. I liked Greg's link to John Gruber's opinion. TLDR: It's poor form. http://daringfireball.net/2007/07/on_top Ignoring these bits of advice send signals to the community that you don't value the time we donate to you. > > On Mon, Aug 30, 2021 at 3:01 PM Krish Jain <krishjain02939@xxxxxxxxx> wrote: > > > > One sec this got even more confusing. I saw > > https://stackoverflow.com/questions/23184181/error-while-running-make-install-include-generated-autoconf-h-or-include-confi > > and it says > > > > ------- > > You are including the V=1 which causes Make to show the commands as > > they're being run. From the looks of it, you're not actually seeing > > the error itself, but you're seeing the test that it's running to > > check if those files exist: > > > > test -e include/generated/autoconf.h -a -e include/config/auto.conf || > > ( \ ... echo error messages here ... \ ) > > > > That test is being run, and if it fails, it would echo those messages > > to standard error, which it's not. If your module isn't building it's > > probably due to some other issue. > > ------ > > > > So where is it going all wrong? Messing up the file ashmem.c does not > > print the errors. > > I have no clue where you got V=1 from. Are you sure you need it? As for "So where is it going all wrong?" Like Greg said a few emails ago: "Are you sure the file is being built at all? You usually have to select the proper configuration option to enable that driver as well." After a response from Greg like that, I would ask myself: How do I select the proper configuration options? and How do I know if the proper one is set? Having had the same issue as you when I first started, I will try to save you some time. Read the documentation, it is faster than you think and will give you more information than I can give you over email: https://www.kernel.org/doc/html/latest/kbuild/makefiles.html > > > > > > https://pastebin.com/NuvqMUWu is the link to the .config file. > > > The error I get is https://imgur.com/gkwh7Sb . > > > Your .config will be different to everyone else. I have different hardware to you, Greg or Fabio. And I will need different modules and options enabled. I have no idea if your .config file is correct. This error seems to indicate you're missing your Module.symvers file, not your .config file. It's hard to tell with the V=1 option set. > > > > > > > > When a module is loaded/used, the values contained in the kernel are > > > > compared with similar values in the module; if they are not equal, the > > > > kernel refuses to load the module. I don't need it in my case. > > > > > > > > > What would happen if we didn't have the proper symbols when compiling or > > > > > installing this driver? > > > > > How and what generates the Module.symvers file when we *do* need it? > > > > > > > > The kernel would refuse to load the module. > > > > Excellent! This has nothing to do with test building our shared memory system. We can either turn the warning off, find a way to generate the file, or fake that we've generated the file. Though it's important you know the impact of your decision. > > > > > > > > > > > > ERROR: Kernel configuration is invalid."; \ > > > > > > echo >&2 " include/generated/autoconf.h or > > > > > > include/config/auto.conf are missing.";\ > > > > > > echo >&2 " Run 'make oldconfig && make prepare' on kernel src > > > > > > to fix it."; \ > > > > > > > > > > > > > > > > > > is still present. > > > > > > > > > > > > How can I fix this? > > > > > > After everything above, (See what we mean about top posting?) Are you sure you're getting this ERROR? > > > > > > > > > > Are there any other 'make *config' options we could try? > > > > > > > > Yes, like main menuconfig. I tried it but it still doesn't work. > > > > There are more (faster) options. Though 'menuconfig' would be a great option to select specific modules you would like to build. > > > > > > > > > > Do we really need CONFIG_INFINIBAND turned on if we're working in the > > > > > drivers/staging tree of the kernel? > > > > > > > > No, we don't. I removed it. > > > > "removed it" makes me think your editing your .config file by hand. It's not wrong to do so, just be sure you know what you're doing. > > > > > > > > > What would we gain from having a compiled kernel if we want to test a > > > > > single staging driver? > > > > > > > > No need to compile the entire kernel I guess for my use case. But > > > > after all this reading :( I still don't get why " sudo make > > > > CCFLAGS=-Werror W=1 M=drivers/staging/android/ V=1" worked for you > > > > but not for me. I still get the following errors > > > > > > > > > > > > test -e include/generated/autoconf.h -a -e include/config/auto.conf || ( \ > > > > echo >&2; \ > > > > echo >&2 " ERROR: Kernel configuration is invalid."; \ > > > > echo >&2 " include/generated/autoconf.h or > > > > include/config/auto.conf are missing.";\ > > > > echo >&2 " Run 'make oldconfig && make prepare' on kernel src > > > > to fix it."; \ > > > > echo >&2 ; \ > > > > /bin/false) > > > > ..... > > > > > > > > > > > > How can I fix this? > > > > My advice would be to familiarize yourself with how modules are built with "Linux Kernel Makefiles" section in the documentation. https://www.kernel.org/doc/html/latest/kbuild/makefiles.html It describes everything in greater detail than I could ever give here. If anyone else wants to jump in here, feel free. ~Bryan
