[Q] Why is this?
SethMeister G. (consp05@binghamton.edu)
Thu, 20 Jun 1996 18:34:13 -0400 (EDT)
> In trying to compile an IDEA encryption routine for the kernel, I'm
> getting the following error:
>
> ld -m elf_i386 -Ttext 0x100000 -e stext arch/i386/kernel/head.o init/main.o init/version.o \
> arch/i386/kernel/kernel.o arch/i386/mm/mm.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o net/network.a \
> fs/filesystems.a \
> drivers/block/block.a drivers/char/char.a drivers/net/net.a drivers/pci/pci.a \
> /usr/homes/nicholas/Computer/source/kernel/linux.idea/arch/i386/lib/lib.a /usr/homes/nicholas/Computer/source/kernel/linux.idea/lib/lib.a /usr/homes/nicholas/Computer/source/kernel/linux.idea/arch/i386/lib/lib.a -o vmlinux
> drivers/block/block.a(idea.o): In function `idea_encrypt_block':
> idea.o(.text+0x466): undefined reference to `memcpy'
> idea.o(.text+0x4a8): undefined reference to `memcpy'
> make: *** [vmlinux] Error 1
> elasped 0:45.57 87.3%
>
> But many other files in drivers/block use memcpy. In fact, loop.c does
> itself. So why can't it find it for my file?
AFAIK, memcpy is an inline function, defined in <srcroot>/include/asm.