Using Linux 0.1 Code, undefined reference

Bobalandi · Post by **Bobalandi** » Mon Jun 30, 2008 7:40 pm

I was trying to get a working printf to use Brynet-Inc's cpuid code in my kernel, so I decided to try to port Linus Torvald's Linux 0.1 vsprintf code to my kernel, but when I compile and link it to my kernel, I keep getting the following error:

Code: Select all

vsprintf.o: In function `vsprintf':
vsprintf.c:(.text+0x462): undefined reference to `strlen'

What's going on.?

piranha · Post by **piranha** » Mon Jun 30, 2008 7:55 pm

Do you have a strlen function

?

-JL

Bobalandi · Post by **Bobalandi** » Tue Jul 01, 2008 6:57 am

yes sir, it's included in the string.h that I ported.

AJ · Post by AJ » Tue Jul 01, 2008 8:38 am

Have you ported the binary as well as the header?

Cheers,
Adam

DeletedAccount · Post by **DeletedAccount** » Tue Jul 01, 2008 11:25 am

Hey ! ,
Linux kernel 0.1 has a hacked up string library written in x86 asm.I prefer a simpler C implementation . You may need to make some changes . The linux kernel 0.1 has a bug that makes it difficult to work with some bioses . Also make sure that you clear the NT flag , this will save lots of trouble later on .
Regards
Sandeep Mathew

Bobalandi · Post by **Bobalandi** » Tue Jul 01, 2008 4:44 pm

yeah, I think I'll just try to implement my own in C :\

lukem95 · Post by **lukem95** » Wed Jul 02, 2008 4:26 am

its not particularly hard to do, google "strlen implementation" and you'll find loads.

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Using Linux 0.1 Code, undefined reference

Using Linux 0.1 Code, undefined reference

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