sakaki-
commented
6 years ago Hi @IEXWER,
First, if you are compiling a kernel on your RPi3 directly, you don't need the cross-compilation directives (you can just use e.g. make distclean rather than make ARCH=arm64 CROSS_COMPILE=aarch64-unknown-linux-gnu- distclean).
Second, the "dangerous relocation" problem is a known issue with the version of binutils shipped on the image (2.30). It is fixed upstream in a later release; and (if using gcc-6.4.0 or gcc-6.4.0-r1) the earlier version also works. So, to compile a kernel locally on your RPi3, you can either:
- use
gcc-6.4.0-r1andbinutils-2.29.1-r1(see my instructions here); or - use
gcc-7.3.0-r1andbinutils-2.30-r2; to do so, start from a fresh copy of the image, then rungenup(as root) which will update yourgccandbinutilsto these versions, and then perform your normal kernel build steps (make distcleanetc.) as described here (but ignore the steps before the sentence "Now, suppose you wish to build the most modern version of the 4.14.y kernel...")
Hope that helps! sakaki
IEXWER
OK, I still follow the wiki to compile a linux system in my raspberry 3b with img in this git. When i compile kernel, the message show in my window.
lib/vsprintf.o:(ksymtab+vsprintf+0x8): dangerous relocation: unsupported relo cation lib/vsprintf.o:(ksymtab+vsscanf+0x0): dangerous relocation: unsupported reloc ation lib/vsprintf.o:(ksymtab+vsscanf+0x8): dangerous relocation: unsupported reloc ation lib/vsprintf.o:(ksymtab_gpl+bprintf+0x0): dangerous relocation: unsupported r elocation lib/vsprintf.o:(_ksymtab_gpl+bprintf+0x8): dangerous relocation: unsupported r elocation lib/vsprintf.o:(___ksymtab_gpl+bstrprintf+0x0): dangerous relocation: unsupport ed relocation lib/vsprintf.o:(ksymtab_gpl+bstr_printf+0x8): dangerous relocation: unsupport ed relocation lib/vsprintf.o:(_ksymtab_gpl+vbinprintf+0x0): dangerous relocation: unsupport ed relocation lib/vsprintf.o:(ksymtab_gpl+vbin_printf+0x8): dangerous relocation: unsupport ed relocation lib/win_minmax.o:(_ksymtab+minmax_running_max+0x0): dangerous relocation: unsu pported relocation lib/win_minmax.o:(_ksymtab+minmax_running_max+0x8): dangerous relocation: unsu pported relocation drivers/firmware/efi/libstub/lib-sort.stub.o: In function `efistub_$d': efistub_sort.c:(.init_ksymtab+sort+0x0): dangerous relocation: unsupported r elocation efistub_sort.c:(.init___ksymtab+sort+0x8): dangerous relocation: unsupported r elocation aarch64-unknown-linux-gnu-ld: warning: creating a DT_TEXTREL in a shared object. make: *** [Makefile:1021: vmlinux] Error 1
I think, is there a wrong step in my operation? My step is below. Because the img has crossdev ,so i don't need to setup crossdev. Then i download the kernel source code from raspberry github.The kernel'branch is rpi-4.14.y.The release tag raspberrypi-kernel_1.20180417-1 Merge remote-tracking branch 'stable/linux-4.14.y' into rpi-4.14.y.
and type make ARCH=arm64 CROSS_COMPILE=aarch64-unknown-linux-gnu- distclean make ARCH=arm64 CROSS_COMPILE=aarch64-unknown-linux-gnu- bcmrpi3_defconfig make ARCH=arm64 CROSS_COMPILE=aarch64-unknown-linux-gnu- menuconfig after this type, i just exit the menuconfig, delete .config file ,download .config file in this repository to replace it. In the end, after type nice -n 19 make ARCH=arm64 CROSS_COMPILE=aarch64-unknown-linux-gnu- -j$(nproc) the error emerge.The log message. That's all what i have done.
My english is poor,If there has some place you can't understand,please tell me. I will use the google translation to communicate with you. Thank you.