On 03/17/2016 02:42 PM, Rick Stevens wrote:
On 03/17/2016 02:16 PM, Stephen Morris wrote:
On 17/03/16 09:53, Rick Stevens wrote:
On 03/16/2016 12:44 PM, Stephen Morris wrote:
On 16/03/16 19:25, Stephen Morris wrote:
Hi,
I am trying to compile the kernel from the source for kernel
4.4.3-300 but the compile is failing even though I have downloaded
kcbench to get the module source code. I have looked in
arch/x86/entry/syscalls in the kernel source and syscall_32.tbl is not
there, all that is in that directory is Makefile. Have I downloaded
the wrong source package, or should I just try and find where it has
been placed in the kcbench-data directory and copy it over?
regards,
Steve
I copied the syscall_32.tbl module across to the kernel from where the
kcbench_data package installed it to, but the compile then fails on the
next module from the kcbench_data package. Why are these not in the
kernel, or is there another place that I need to update to reflect that
the necessary source has been installed and where it is, that the
package install is not updating?
I'm not having any issues (well, so far).
1. I downloaded the kernel source RPM from a Fedora mirror to my /tmp
directory. If you want the exact commands I used:
$ cd /tmp
$ wget
http://mirrors.kernel.org/fedora/updates/23/SRPMS/k/kernel-4.4.4-301.fc23.src.rpm
2. As myself (not a privileged user), I just did:
$ cd /tmp
$ rpm -ivp kernel-4.4.4-301.fc23.src.rpm
to install it in my rpmbuild directory tree. It whined about some items
I needed to build it, so I downloaded and installed them:
$ sudo dnf install audit-libs-devel binutils-devel bison
elfutils-devel flex hmaccalc newt-devel numactl-devel pciutils-devel
pesign
3. Next, I did:
$ cd ~/rpmbuild/SPECS
$ rpmbuild -bp kernel.spec
This builds the initial stuff required to configure the kernel itself,
applies the patches, etc. and puts the results in
~/rpmbuild/BUILD/kernel-4.4.fc23
You'll see two directories inside the one I mention above. The one
named "linux-4.4.4-301.fc23.x86_64" is the Fedora-specific one (with
Fedora-specific patches). The one named "vanilla-4.4" is the one
straight from kernel.org (without Fedora-specific patches and the
like). Use the Fedora-specific one.
4. Next, I did:
$ cd ~/rpmbuild/BUILD/kernel-4.4.fc23/linux-4.4.4-301.fc23.x86_64
$ make xconfig
Made my changes and saved the resulting ".config" file.
4. Next, I did:
make
At this point, it starts building the kernel. It's still building right
now (I'm using my poor little 4-core i5 laptop with only 8G of RAM),
but so far I've not seen any issues like you're having.
It's been a while since I built a kernel, but this is more-or-less what
I've done in the past. I hope it helps.
Thanks Rick, I'll try this 3rd method.
What led to this thread was, I have had the kernel-devel package
installed from fc18 onwards, so having this package installed I used
dolphin to copy /usr/src/kernels/4.4.4-301.fc23.x86_64 to
/usr/local/downloads/kernels/4.4.4-301.fc23.x86_64, so that I could work
on it without being root.
I did:
$ cd /usr/local/downloads/kernels/4.4.4-301.fc23.x86_64
$ make xconfig
loaded /boot/config-4.4.4-301.fc23.x86_64
set the config_ath9k_channel_context_support option (I'm trying
this to see if it activates dual channel support on my 802.11ac usb
wireless adapter)
saved the config to .config
Then I did:
make bzImage (just make does the same thing)
This was where I got the message that led to this track, as the kernel
subdirectory of arch/x86/entry/syscalls which was where make was
expecting to find syscall_32.tbl only contained a makefile and nothing
else.
After raising this thread I did some net searches for the error and got
some hits that led me to the following command:
dnf provides */syscall_32.tbl
which led me to the kcbench-data package as being the container.
I installed the package and its dependencies, and re-ran the kernel make
but it still produced the same error.
I then copied syscall_32.tbl from the sub-directory of /usr/share, which
is where the install of the kcbench-data installed all its source to,
and re-ran the make. This rectified the syscall_32.tbl issue but failed
the next source code that was part of the kcbench-data package. Hence,
from my perspective, either the source packages in the Fedora
repositories are packaged wrong, or once the source packages are
installed there is some other configuration process that needs to be
done to tie them all together so that the make process knows where to
find everything.
I also tried a make prepare but that had exactly the same issues as
the compile process.
I also tried following the instructions at
https://fedoraproject.org/wiki/Building_a_custom_kernel in the section
'Building a Kernel from the source RPM', but I couldn't work out what
the required syntax was for the command su -c 'dnf builddep
kernel-<version>.src.rpm' , but you instructions above have given me an
idea of what the required syntax may be.
"dnf builddep kernel-<version>.src.rpm" is a special dnf command (not
documented in the man page, GRRRR!). From what I can gather, it looks
at the RPM's requirements and possibly the "BuildRequires:" stuff in the
source RPM's "*.spec" file and installs missing items.
It does more or less what I did manually when my first "rpm -ivh" of
the kernel source whined about missing packages and I manually installed
them.
The format of the command for the kernel I built would have been:
su -c 'dnf builddep kernel-4.4.4-301.fc23.src.rpm'
Note that you must have downloaded the kernel source RPM to some
scratch directory first, then "cd" to that scratch directory, THEN
issue the "su -c 'dnf builddep..." command from there. The command
needs to see the RPM (and possibly extract the .spec file to find the
"BuildRequires:" data).
I wanted to add one more thing about that syscall_32.tbl file.
Note that I ONLY did specifically what I mentioned in my initial
response. I decided to trawl through the resultant stuff and this is
what I see:
[rick@golem4 ~]$ ls -l
/home/rick/rpmbuild/BUILD/kernel-4.4.fc23/linux-4.4.4-301.fc23.x86_64/arch/x86/entry/syscalls
total 44
-rw-r--r-- 2 rick rick 2137 Jan 10 15:01 Makefile
-rw-r--r-- 2 rick rick 15362 Jan 10 15:01 syscall_32.tbl
-rw-r--r-- 2 rick rick 12862 Jan 10 15:01 syscall_64.tbl
-rw-r--r-- 2 rick rick 644 Jan 10 15:01 syscallhdr.sh
-rw-r--r-- 2 rick rick 327 Jan 10 15:01 syscalltbl.sh
Note that the dates on those files (Jan 10) have NOTHING to do with
the date of my build (Mar 16), so they came from the source RPM--more
specifically from the "linux-4.4.tar.xz" source tarball included in
the source RPM that gets unpacked during the "rpmbuild -bp" command:
[rick@golem4 ~]$ tar tJf ~/rpmbuild/SOURCES/linux-4.4.tar.xz | grep
arch/x86/entry/syscalls
linux-4.4/arch/x86/entry/syscalls/
linux-4.4/arch/x86/entry/syscalls/Makefile
linux-4.4/arch/x86/entry/syscalls/syscall_32.tbl
linux-4.4/arch/x86/entry/syscalls/syscall_64.tbl
linux-4.4/arch/x86/entry/syscalls/syscallhdr.sh
linux-4.4/arch/x86/entry/syscalls/syscalltbl.sh
----------------------------------------------------------------------
- Rick Stevens, Systems Engineer, AllDigital ricks@xxxxxxxxxxxxxx -
- AIM/Skype: therps2 ICQ: 226437340 Yahoo: origrps2 -
- -
- Grabel's Law: 2 is not equal to 3--not even for large values of 2. -
----------------------------------------------------------------------
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