Compiling Hardened Kernel Problem

[leonchik1976]

I'm installing completely new system with hardened sources. when i run "make", a got a lot like:
"warning: pointer targets in passing argument 1 of 'full_name_hash' differ in signedness"
what does it mean?
a final error:
"scripts/unifdef.c:209: error: conflicting types for 'getline'
/usr/include/stdio.h:651: error: previous declaration of 'getline' was here
make[2]: *** [scripts/unifdef] Error 1
make[1]: *** [__headers] Error 2
make: *** [vmlinux] Error 2"

any suggestions how to fix it?

[Hu]

The compilation error is a compatibility problem between that version of unifdef and newer versions of glibc. You need a newer unifdef or an older glibc. Downgrading glibc is a good way to destroy the system, so upgrading to a newer unifdef is required.

[leonchik1976]

i've emerged unifdef, but i still have error:

CHK include/linux/version.h
CHK include/linux/utsrelease.h
SYMLINK include/asm -> include/asm-x86
CALL scripts/checksyscalls.sh
CHK include/linux/compile.h
dnsdomainname: Unknown host
CHK include/linux/version.h
HOSTCC scripts/unifdef
scripts/unifdef.c:209: error: conflicting types for 'getline'
/usr/include/stdio.h:651: error: previous declaration of 'getline' was here
make[2]: *** [scripts/unifdef] Error 1
make[1]: *** [__headers] Error 2
make: *** [vmlinux] Error 2

[Rexilion]

Perhaps you need an even higher version of unifdef? How did you 'upgrade' unifded anyway? Which steps did you take?

[leonchik1976]

emerge unifdef
it wasn't installed before at all

[Rexilion]

Try emerging it like this:

[cach0rr0]

you shouldn't run into this if you used the hardened-stage3 tarball and set the hardened profile and that.

What exact steps did you follow for this?
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[Hu]

It appears the failed unifdef is included in the kernel sources. As such, you need newer kernel sources to get the relevant newer unifdef. At this point, the output of emerge --info seems needed.