Hi All, I'm trying to add a new linux syscall called fallocate just to map it to the existing posix_fallocate whenever it's possible (as it is nonportable for its mode as far as I can see). I've read some docs (but certain things may have been overlooked) like:
https://pubs.opengroup.org/onlinepubs/9699919799/functions/posix_fallocate.html http://man7.org/linux/man-pages/man2/fallocate.2.html https://www.netbsd.org/docs/internals/en/chap-processes.html#syscall_howto https://www.netbsd.org/docs/kernel/programming.html#adding_a_system_call What I've done so far on a NetBSD-8.0 VM after pulling its source: 1) modified: /usr/src/sys/compat/linux/arch/amd64/syscalls.master like: 285 STD { int|linux_sys||fallocate(int fd, int mode, linux_off_t offset, linux_off_t len); } 2) added linux_sys_fallocate() to /usr/src/sys/compat/linux/common/linux_file.c like: int linux_sys_fallocate(int fd, int mode, linux_off_t offset, linux_off_t len){<!-- --> printf("Calling linux_sys_fallocate\n"); return EOPNOTSUPP; } Question: is that the right place to add linux_sys_fallocate()? 3) issued make in /usr/src/sys/compat/linux/arch/amd64 which seems to have done its job right but do I need to do so as well in /usr/src/sys/compat/linux??? If I do so I get: don't know how to make syscalls.master. Stop. 4) rebuilt the GENERIC kernel which stopped when it got to linux_file.o. The error message didn't say anything more only that it stopped there but judging by that compiling linux_file.c went fine but linking failed. Thanks for any hints! Best regards, r0ller