[SOLVED] 6.17. GCC-5.2.0 trouble

RedCollarPanda · 02-23-2016, 12:52 PM

I followed all the commands and got to 6.17. GCC-5.2.0 page.

Now, after tests and so on when I do

Code:

echo 'int main(){}' > dummy.c
cc dummy.c -v -Wl,--verbose &> dummy.log
readelf -l a.out | grep ': /lib'

I see empty output.

What I should get -
[Requesting program interpreter: /lib/ld-linux.so.2]

What I get -

[Requesting program interpreter: /tools/lib64/ld-linux-x86-64.so.2]

Path is - /bin:/usr/bin:/sbin:/usr/sbin:/tools/bin

What do I do wrong?

Keith Hedger · 02-23-2016, 02:16 PM

Probably went wrong here somewhere:
http://www.linuxfromscratch.org/lfs/...adjusting.html
What did you get from

Code:

echo 'int main(){}' > dummy.c
cc dummy.c -v -Wl,--verbose &> dummy.log
readelf -l a.out | grep ': /lib'

At 6.10?

RedCollarPanda · 02-23-2016, 02:49 PM

Well, I don't remember...

I did a backup, so I can redo all the 6 chapter.
Any Advice?

Should I write here output of checking in 6.10 ?

kcirick · 02-23-2016, 02:58 PM

I think I ran into something like this and it was because I'd forgotten to delete the build tree from chapter5. Make sure you delete the gcc-build from chapter5, and probably delete and re-unpack the gcc source too, just to be safe.

If you did a backup BEFORE you started chapter 6, then that should be fine. In 6.10, you do move things around, so be careful.

RedCollarPanda · 02-23-2016, 03:30 PM

Ok, so can you tell me - what build tree should I delete?
I was cleaning all *-build directories by "rm -rf *" before building again.

So as I shoul do - I should go to my backup from chapter 5 and post here output from 6.10 , right?

kcirick · 02-23-2016, 03:45 PM

Quote:

Originally Posted by RedCollarPanda

Ok, so can you tell me - what build tree should I delete?
I was cleaning all *-build directories by "rm -rf *" before building again.

So as I shoul do - I should go to my backup from chapter 5 and post here output from 6.10 , right?

Code:

rm -rf gcc-build && mkdir -v gcc-build

I would also delete the gcc source treee:

Code:

rm -rf gcc-5.2.0 && tar -xf gcc-5.2.0.tar.bz2

This is because in chapter5, you have built GMP, MPC and MPFR into the gcc source tree.

Yes. Use the backup from chapter5 and redo chapter6. Good luck!

Keith Hedger · 02-23-2016, 04:41 PM

Always use clean, freshly unpacked sources when building the toolchain and the base system, be specially careful with, binutils,gcc and glibc,monce the toolchain has been adjusted you can't really 'un-adjust' it, which is why it's a good idea to make and keep a copy of the toolchain at the end of chapter 5, I still do and I have been building LFS for about 4 years now.

P.S.
Woohoo! my 2,000th post!

RedCollarPanda · 02-28-2016, 11:53 AM

Thank you all! I have done all from scratch and after every build i was doing rm -rf %dirname% . 6.17 passed. Thanks again