On Tue, Nov 29, 2011 at 4:35 AM, T. Valent <tmp...@4ss.de> wrote:
> Hi!
>
> I'm trying to build a new kernel. However, while compiling I get
> complaints about undefined references like this:
>
> ld -Ttext 0xD0200120 -e start -N --warn-common -S -x -o bsd
> ${SYSTEM_HEAD} vers.o ${OBJS}
> machdep.o(.text+0x2791): In function `sys_sigreturn':
> : undefined reference to `fpu_mxcsr_mask'andres@pote:~ $ grep -rw fpu_mxcsr_mask /sys/arch/i386 ... /sys/arch/i386/include/npx.h:extern uint32_t fpu_mxcsr_mask; /sys/arch/i386/isa/npx.c:uint32_t fpu_mxcsr_mask; ... andres@pote:~ $ grep -rw npx /sys/arch/i386/conf/files.i386 /sys/arch/i386/conf/files.i386:device npx /sys/arch/i386/conf/files.i386:attach npx at isa /sys/arch/i386/conf/files.i386:file arch/i386/isa/npx.c npx needs-flag > > The above line is just an example. I have poked around with more or less > guessing what could be missing, but after 2 days I'm quite sure I need a > general solution to finding the dependencies instead of guessing. > > I have no skills in kernel coding. I wonder if there's a good way to > find out which part I am missing in the config file(s). note how the grep commands required no kernel coding skills > > This is what I do: > edit /usr/src/sys/conf/GENERIC > I'm fine with this so far. > > Now to edit > > /usr/src/sys/arch/i386/conf/GENERIC > > I do > > dmassage -t i might be wrong, but is this really aggressive auto spelling corrector for "dmesg"? > > and make sure all the hardware I need is included in my config file. I'm > quite sure I've included everything I need, I get the above mentioned > problems, which I understand as dependencies. However, I just don't know > how to find out which line of the config file I have to include to solve > this. > > I know I am recommended to use the generic kernel. I need the kernel for > an embedded device where the hardware is well known in detail, it is > always the same, will not change and memory is very limited. So I need > to get rid of the unnecessary stuff in the kernel. > > Thanks in advance! > > T.
