On Tuesday, November 8, 2016 4:17:47 PM CET Josh Triplett wrote: > Some embedded systems can do without the prctl syscall, saving some space. > > This also avoids regular increases in tinyconfig size as people add more > non-optional functionality to prctl (observed via the 0-day kernel > infrastructure). > > The first patch moves prctl and all its helpers into a separate source file, > kernel/prctl.c, to allow making it optional via the Makefile without any > ifdefs. The second patch adds the Kconfig option to make prctl optional. > > Josh Triplett (2): > kernel: Move prctl and helpers from kernel/sys.c to new kernel/prctl.c > kernel: Support compiling out the prctl syscall > Both of these look really nice to me. Another syscall that comes to mind as a candidate to be made optional is ptrace, and I've added Nicolas Pitre to Cc here, as he has looked into this before. Another area to look at may be syscalls that are always defined but that are no longer part of the default syscall table in include/uapi/asm-generic/unistd.h. Maybe we can have a single conditional for those. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
