Kernel Compile Error

Philip M. Gollucci pgollucci at
Wed Nov 28 09:17:39 PST 2007

Schiz0 wrote:
> On Nov 28, 2007 8:47 AM, Philip M. Gollucci <pgollucci at> wrote:
>> Schiz0 wrote:
>>> Hey,
>>> I'm running FreeBSD 6.3-PRERELEASE. I recently csuped the source code
>>> (src-all) and built world.
>>> I then tried to "make buildkernel", and it ran for a little while,
>>> then gave the following error and stopped:
>>> The error is at the bottom - that is the log of the entire buildkernel process.
>> I see no error -- looks like you didnt' copy enough of it.
>> use -DNO_CLEAN to skip all the rm -f stuff at the start when you post
>> the new output.
undefined reference to `__semctl'^M
linux_ipc.o(.text+0x918): In function `linux_msgsnd':^M
/usr/src/sys/compat/linux/linux_ipc.c:600: undefined reference to `msgsnd'^M
linux_ipc.o(.text+0x94e): In function `linux_msgrcv':^M
/usr/src/sys/compat/linux/linux_ipc.c:619: undefined reference to `msgrcv'^M
linux_ipc.o(.text+0x970): In function `linux_msgget':^M
/usr/src/sys/compat/linux/linux_ipc.c:632: undefined reference to `msgget'^M
linux_ipc.o(.text+0x9d2): In function `linux_msgctl':^M
/usr/src/sys/compat/linux/linux_ipc.c:650: undefined reference to
linux_ipc.o(.text+0xa4d): In function `linux_shmat':^M
/usr/src/sys/compat/linux/linux_ipc.c:680: undefined reference to `shmat'^M
linux_ipc.o(.text+0xaae): In function `linux_shmdt':^M
/usr/src/sys/compat/linux/linux_ipc.c:699: undefined reference to `shmdt'^M
linux_ipc.o(.text+0xad6): In function `linux_shmget':^M
/usr/src/sys/compat/linux/linux_ipc.c:714: undefined reference to `shmget'^M
linux_ipc.o(.text+0xb18): In function `linux_shmctl':^M
/usr/src/sys/compat/linux/linux_ipc.c:733: undefined reference to
undefined reference to `kern_shmctl'^M
undefined reference to `kern_shmctl'^M
undefined reference to `kern_shmctl'^M
undefined reference to `kern_shmctl'^M
linux_ipc.o(.text+0xcd2):/usr/src/sys/compat/linux/linux_ipc.c:808: more
undefined references to `kern_shmctl' follow^M

Add these 3 to your kernel config file near the end. Don't use the
-DNO_CLEAN when you build this time.  That was just to cut down on the
output in the log file (or when you intentionally don't want to delete
the build from the previous attempt or success)

options         SYSVSHM                 #SYSV-style shared memory
options         SYSVMSG                 #SYSV-style message queues
options         SYSVSEM                 #SYSV-style semaphores

Philip M. Gollucci (philip at
Senior System Admin - Riderway, Inc. /
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