Linux 编译抛出错误 header 文件错误

Question

I am compiling this code (minimul linux kernel) from https://github.com/liva/minimal-linux

I am getting > make[1]: *** [Kbuild:42: include/generated/timeconst.h] Error 127

basically its make error. may be error in timeconst.h or may be its missing file.

So my question is how to find the file in the minimul-linux-master (download from above link) folder and how to debug for more info when compiling the code.

as u can see what make displays is completely useless. And I have no clue why the error is caused. there are not any other errors so I assumed all the errors or single error is in timeconst.h .

this is terminal output.

....

HOSTCC scripts/mod/sumversion.o

HOSTLD arch/x86/tools/relocs

HOSTCC scripts/mod/file2alias.o

UPD include/config/kernel.release CHK include/generated/utsrelease.h

UPD include/generated/utsrelease.h

CC kernel/bounds.s

CHK include/generated/timeconst.h

/bin/sh: 1: bc: not found

make[1]: *** [Kbuild:42: include/generated/timeconst.h] Error 127

make[1]: *** Waiting for unfinished jobs....

make: *** [Makefile:1054: prepare0] Error 2

make: *** Waiting for unfinished jobs....

HOSTLD scripts/mod/modpost

I am on host: 5.10.0-kali3-amd64 machine is x86-64

Answer 1

I fixed the same by comparing mine KBuild with the one defined in in the given link.

https://android.googlesource.com/kernel/msm/+/db248780101f2ca2bc3c02598917e88dfdce3207/Kbuild