I actually found this, which was exactly what I needed. On Thu, Aug 11, 2016 at 4:50 PM Matt M <[email protected]> wrote:
> Thank you > > On Thu, Aug 11, 2016 at 7:40 PM Greg KH <[email protected]> wrote: > >> On Thu, Aug 11, 2016 at 07:25:45PM +0000, Matt M wrote: >> > I am just getting started with kernel module development, and I can't >> get >> > anything to compile. >> > >> > I get the following errors: >> > >> > In file included from main.c:1:0: >> > /usr/src/linux/include/linux/init.h:142:13: error: expected ‘=’, ‘,’, >> ‘;’, >> > ‘asm’ or ‘__attribute__’ before ‘load_default_modules’ >> > void __init load_default_modules(void); >> > ^~~~~~~~~~~~~~~~~~~~ >> > /usr/src/linux/include/linux/init.h:143:12: error: expected ‘=’, ‘,’, >> ‘;’, >> > ‘asm’ or ‘__attribute__’ before ‘init_rootfs’ >> > int __init init_rootfs(void); >> > ^~~~~~~~~~~ >> > /usr/src/linux/include/linux/init.h:285:13: error: expected ‘=’, ‘,’, >> ‘;’, >> > ‘asm’ or ‘__attribute__’ before ‘parse_early_param’ >> > void __init parse_early_param(void); >> > ^~~~~~~~~~~~~~~~~ >> > /usr/src/linux/include/linux/init.h:286:13: error: expected ‘=’, ‘,’, >> ‘;’, >> > ‘asm’ or ‘__attribute__’ before ‘parse_early_options’ >> > void __init parse_early_options(char *cmdline); >> > >> > >> > The errors go on and on, but the majority look like that. >> > >> > My code: >> > >> > #include <linux/init.h> >> > #include <linux/module.h> >> > >> > int main() { >> > return 0; >> > } >> > >> > >> > The compile command: >> > gcc -I /usr/src/linux/include/ main.c >> >> That's not how you compile a Linux kernel module, sorry. >> >> Please read the very good documentation for how to set up a Makefile for >> building a kernel module. It's in the kernel's Documentation/ >> directory. >> >> best of luck, >> >> greg k-h >> >
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