make zImage errors

I'm trying to make a new kernel that supports IP aliasing, but the process keeps generating an error about 20 minutes into the process. The machine is a 486DX/100 compiling with kernel 2.0.29 (Slackware) from a Walnut Creek CD-ROM.

I ran 'make dep' and there were no errors that I could see, but I wasn't watching the screen real close. The first time I attempted compiling, I also ran 'make clean' which seemed to inspire an error in 'make zImage' very soon into the process (just long enough to fill the coffee cup).

Here's all the messages I could get from the screen (I added extra line returns to make it easier to see each line)...

gcc -D __KERNEL__ -I/usr/src/linux/include -O2 -DSTDC_HEADERS -C misc.c -0 misc.o

ld -qmagic -Ttext 0xfe0 -o vmlinux head.o misc.o piggy.o

ld: warning: cannot find entry symbol _start; defaulting to 0000000000000fe0

misc.o: In function 'fill_inbuf':

misc.o(.text+0x1c18):undefined reference to 'input_data'

misc.o(.text+0x1c1d):undefined reference to 'input_len'

misc.o(.text+0x1c33):undefined reference to 'input_data'

make[2]: ***[vmlinux] Error 1

make[2]: Leaving directory 'usr/src/linux/arch/i386/boot/compressed'

make[1]: ***[compressed/vmlinux] Error 2

make[1]: Leaving directory '/usr/src/linux/arch/i386/boot'

make: ***[zImage] Error 2
darnellAsked:
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BelarCommented:
Uh, well, i need more info.

1) Did you downloader this need source tree or applied a patch to an older kernel? I mean did you untared this new kernel over /usr/src/linux?

2) You didn't specify if you did make config first. I guess you did but i have to ask.
 
3) Do this:      cd /usr/include
            rm -rf asm linux scsi
            ln -s /usr/src/linux/include/asm-i386 asm
            ln -s /usr/src/linux/include/linux linux
            ln -s /usr/src/linux/scsi scsi

This might remove and update stale links that might have appeared if you changed your source tree. They might appears correct but they are not.

4) I don't know which distribution version of slackware you have. You might have an older gcc that need to be upgraded. But i'm reaching with this so don't worry if you have slackware 3.X and up. (I think they have a good enough gcc in these dist.)

5) If this don't work can you redirect the std error to a file and make sure there is no other errors that you didn't mention.
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darnellAuthor Commented:
I found the problem to be a missing file. The source (linux-2.0.29.tar.gz) had a 'piggyback.c' and the make was looking for 'piggy.c'  I renamed the file and all went well.  Thanks for the help.

/s/Rick
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