Setup Buildroot for an old linux kernel - linux

I am encountering a problem while trying to setup a cross-compiler for an old linux kernel.
cp -dpRf package/config/buildroot-config /tmp/buildroot/buildroot-2009.02/project_build_mips/uclibc/buildroot-config
(cd /tmp/buildroot/buildroot-2009.02/toolchain_build_mips/linux-2.6.15; \
/usr/bin/make -j1 ARCH=mips \
HOSTCC="/usr/bin/gcc" HOSTCFLAGS="" \
HOSTCXX="/usr/bin/g++" \
INSTALL_HDR_PATH=/tmp/buildroot/buildroot-2009.02/toolchain_build_mips/linux headers_install; \
)
make[1]: Entering directory `/tmp/buildroot/buildroot-2009.02/toolchain_build_mips/linux-2.6.15'
Makefile:486: .config: No such file or directory
make[1]: *** No rule to make target `headers_install'. Stop.
make[1]: Leaving directory `/tmp/buildroot/buildroot-2009.02/toolchain_build_mips/linux-2.6.15'
make: *** [/tmp/buildroot/buildroot-2009.02/toolchain_build_mips/linux/.configured] Error 2
notice the make[1]: *** No rule to make target 'headers_install'. Stop. line.
I made a search on stackoverflow and came across this thread:
Setup buildroot for old kernels.
The guy faced the same problem as me.
The answer, suggested using an old version of buildroot. Therefore I used buildroot-2009.02 which is the oldest version of buildroot, but still got the same result.
Please don't advise me to upgrade my kernel to a newer version, I must use particularly this version.
I would love to get explanation about what it says and maybe someone could help me fix it.
Thanks in advance.

The error you show doesn't seem to be related to building the kernel, but rather it seems to be during the toolchain (= cross-compiler) build. The toolchain needs to install the kernel headers, which are used by the C library to create system calls. To do this, buildroot uses the 'headers_install' target of the kernel.
Unfortunately, this target was only introduced in Linux 2.6.18. So with your kernel version, you cannot use buildroot to build the cross compiler.
I also don't know how you're supposed to do build a cross-compiler for such an old kernel. You can try to use the original 'crosstool' project (not crosstool-NG, that is also too modern).

Related

Makefile: No such file or directory & No rule to make target, while compiling Linux kernel

I just download a linux kernel, add some systemcalls and then try to compile it.
While I use "make mrproper" and "menuconfig" it happened:
root#krasus-virtual-machine:/home/krasus/lib1/linux-5.19.10# make mrproper
Makefile:1022: scripts/Makefile.extrawarn: No such file or directory
make: *** No rule to make target "scripts/Makefile.extrawarn". Stop.
root#krasus-virtual-machine:/home/krasus/lib1/linux-5.19.10# make menuconfig
Makefile:611: scripts/Makefile.compiler: No such file or directory
make: *** No rule to make target "scripts/Makefile.compiler". Stop.
My vmware version is ubuntu 20.04.5 LTS with kernel 5.15.0-48,
The version of the kernel I'm compiling is linux-5.19.10.
I would really appreciate if you can give me some help, I've tried a lot but nothing worked, and now I'm crazzy about it.
Please forgive my poor English.

Problems building driver on Linux kernel 5.8.x

I'm working with a Linux driver that is building on v5.7.x kernels but not on the latest v5.8.x releases.
To summarise, most of the driver is pre-built and the kernel interface is built on the target. This involves a make -f Kbuild command.
Having checked all of the relevant kernel interface files for any changes that would affect us, normally the driver would just build as usual on a new kernel. However, this time we get the following error:
make[2]: *** [scripts/Makefile.modpost:111: /path/to/source/Module.symvers] Error 1
make[1]: *** [Makefile:1669: modules] Error 2
make[1]: Leaving directory '/usr/src/kernels/5.8.0-1.el8.elrepo.x86_64'
make: *** [Kbuild:26: default] Error 2
This is from CentOS 8.1, but the same error has been seen on Ubuntu 20.04.
I am no expert on this so interpreting these errors is a bit difficult. I have tried building with the KBUILD_VERBOSE flag and it doesn't really provide any useful information, other than the build succeeding until this point.
On previous kernels the Module.symvers file would be created but empty. On 5.8 this file is not created at all presumably due to this error. As a result, the .ko file is not created.
Finally, if we drop in the source files rather than the pre-built .o files the build does succeed. These .o files are built with a very old version of GCC (4.4.7) but we have also tried building with a much newer version (8.3.1), the same version as the target machine.
I would appreciate suggestions for things to check. Let me know if any other details would help.
Edit:
I ran make on Makefile.modpost manually and got the following output:
sudo make -f ./scripts/Makefile.modpost
WARNING: Symbol version dump "vmlinux.symvers" is missing.
Modules may not have dependencies or modversions.
make -f /scripts/Makefile.modfinal
make[1]: Entering directory '/usr/src/linux-headers-5.8.0-050800-generic'
make[1]: /scripts/Makefile.modfinal: No such file or directory
make[1]: *** No rule to make target '/scripts/Makefile.modfinal'. Stop.
make[1]: Leaving directory '/usr/src/linux-headers-5.8.0-050800-generic'
make: *** [scripts/Makefile.modpost:117: __modpost] Error 2
I am answering my own question in case it helps anyone else with this problem. Although it has never been an issue in the past, we've always had a warning that the corresponding .o.cmd file was not present for our .o_shipped files. This appears to be important in kernel 5.8 onwards and my fix was to add a touch command to the Kbuild file (i.e. "touch .driver.o.cmd"). This does not remove the warning but it allows the driver to build as normal.

Arch Linux: make - no such file or directory

I have a problem by compiling a driver (WLAN-dongle Edimax ac600).
I´m using an Archlinux on my raspberry-pi and want to install my dongle for 5Ghz. During comiling the driver I get this message. I tried to install the linux-headers without success. (in other threads it will be a solution)
Here is my output of make:
[root#raspberry_pi_1 rtl8812AU]# make make ARCH=arm CROSS_COMPILE= -C
/lib/modules/4.9.43-1-ARCH/build M=/root/rtl8812AU modules make[1]:
*** /lib/modules/4.9.43-1-ARCH/build: No such file or directory. Stop. make: *** [Makefile:1576: modules] Error 2
I found out that my pi has a two-arch...-directories:
4.9.43-1-ARCH/
4.9.51-1-ARCH/
Only the second one has the build directory...
How can I fix the problem?!
thanks a lot,
a Linux noob...
[Reputation is too low to post comment]
Use uname -r to make sure which version of the kernel you use.
If it's 4.9.43 : you have newer version of the kernel and this confuse your installer. You should reboot on the 51 one
If it's 4.9.51 : You messed up your installation step and are trying to compile for an old target. You should review the compilation process and change every mention of the 4.9.43 to 4.9.51 since it's the version you use.
If you upgrade your kernel, you may have to rebuild the thing again (You may like to have script in the future ;) ) with the new kernel version.

Toolchain binaries cannot be found

Trying to build recent version of u-boot bootloader for my mini2440 ARM board I managed to download a toolchain package from codesourcery and extract it to following path: /usr/local/arm-2008q3/
I also exported following values for current session:
export PATH=$PATH:/usr/local/arm-2008q3/bin
export CROSS_COMPILE=arm-none-linux-gnueabi-
When I run make I get a following output and I cant figure out why:
make: arm-none-linux-gnueabi-gcc: Command not found
for dir in tools examples api_examples ; do make -C $dir _depend ; done
make[1]: arm-none-linux-gnueabi-gcc: Command not found
make[1]: Entering directory `/home/deth/uboot/mini2440/tools'
make[1]: Nothing to be done for `_depend'.
make[1]: Leaving directory `/home/deth/uboot/mini2440/tools'
make[1]: arm-none-linux-gnueabi-gcc: Command not found
make[1]: Entering directory `/home/deth/uboot/mini2440/examples'
/bin/sh: 1: arm-none-linux-gnueabi-gcc: not found
I double checked everything and binaries indeed reside in mentioned folder but... Please explain where I'm wrong.
Well, after almost three days of headbanging into the wall I managed to solve this. To be honest I might have never solved it if occasionally hadn't installed the COdesourcery toolchain with executable installer which they also provide. After doing that the manually unpacked version started to execute! This of course led to a conclusion that there were libraries missing. I tried to reproduce the problem on separate virtual machine and voila, here are couple of words that solved the whole issue:
sudo apt-get install lib32z1 lib32ncurses5 lib32bz2-1.0
Hope this will help someone, and thanks to everyone for help!

installing QODBC driver for linux

I am trying to install QODBC drivers on ubuntu 13.10 for Qt 5.0.2. I have followed the official documentation (see http://qt-project.org/doc/qt-5/sql-driver.html#qodbc) but am stuck at one of the steps. When I try to do
qmake "INCLUDEPATH+=/usr/local/unixODBC/include" "LIBS+=-L/usr/local/unixODBC/lib -lodbc"
it just shows me the help manual for qmake and does nothing.
So I tried to make an empty Makefile and then passed it as an argument
qmake "INCLUDEPATH+=/usr/local/unixODBC/include" "LIBS+=-L/usr/local/unixODBC/lib -lodbc" Makefile
when I try to "make" the generated Makefile, it shows the following errors:
Makefile:183: warning: overriding commands for target `Makefile'
Makefile:130: warning: ignoring old commands for target `Makefile'
make: Circular Makefile <- Makefile dependency dropped.
make: Circular Makefile <- Makefile dependency dropped.
make: Nothing to be done for `first'.
I have just managed to make the odbc driver installation. The main problem here seems to be that you are not including the "pro" target file.
Here all the steps are:
Go to odbc pluggin path. In my case: cd ~/Qt/5.3/Src/qtbase/src/plugins/sqldrivers/odbc
Run qmake including the target LIB paths and also the pro file:
~/Qt/5.3/gcc_64/bin/qmake -makefile "INCLUDEPATH+=/usr/local/include" "LIBS+=-L/usr/local/lib -lodbc" odbc.pro
make and then sudo make install
I hope it will be usefull.
Regards,

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