Messages in this thread | | | Date | Mon, 14 Jan 2002 14:15:45 +0000 | From | Arjan van de Ven <> | Subject | Re: Recompile the loop device |
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Michael Zhu wrote: > > Hello, has anyone recompiled the loop device? I had a > problem when trying to load the recompiled loop.o into > the kernel. When I use the insmod to load the loop.o, > the system always return "loop.o: unresolved external > __put_user_bad". What is wrong? I found that the > __put_user_bad() was defined in the <asm/uaccess.h> as > "extern void __put_user_bad(void);". But I couldn't > found the source code of this function. I don't know > why. Can I define my own __put_user_bad() function in > my recompiled loop.c? > > Another question. My recompiled loop.o is about 25K. > But I found that the loop.o in the > "linux/drivers/block" directory is only 15K. What is > the reason of this difference? I use the following > command line to compile the loop.c file. > > gcc -D__KERNEL__ -I/home/mzhu/linux/include -Wall > -DMODULE -DMODVERSIONS -include > /home/mzhu/linux/include/linux/modversions.h -c loop.c > > Am I right? I can compile the loop.c and create the > loop.o successfully. But I couldn't load it. >
I think this is one of the FAQ items: you forgot -O2 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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