LINUX KERNEL build fail impossible to debug:

lfkd000

build error for kernel
The thing about building linux kernel is i have no idea where the error is and it does not tell clearly which file/line the error is coming from:
For example:

1)
Makefile:69: but there are so many makefiles in kernel source, it is impossible to tell which one?

2) make: *** [Makefile:1437: tools/objtool] Error 2
This above make one to believe it is a makefile in tools/objtool folder but there is a Makefile in there but it only has 71 lines.

WT...??

sudo make -j64
mkdir -p /home/nonroot/extdir/gg/git/kernelbuild/5.14.0-480.el9.x86_64/tools/objtool && make O=/home/nonroot/extdir/gg/git/kernelbuild/5.14.0-480.el9.x86_64 subdir=tools/objtool --no-print-directory -C objtool
make[2]: *** [Makefile:53: /home/nonroot/extdir/gg/git/kernelbuild/5.14.0-480.el9.x86_64/tools/objtool/objtool-in.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [Makefile:69: objtool] Error 2
make: *** [Makefile:1437: tools/objtool] Error 2
make: *** Waiting for unfinished jobs....
scripts/Makefile.build:415: warning: overriding recipe for target 'modules.order'
Makefile:1531: warning: ignoring old recipe for target 'modules.order'

lfkd000

i managed to build with --debug option and found following but output seems too verbose and i could not make anything out of it...?

(partial log)

GNU Make 4.3
Built for x86_64-redhat-linux-gnu
Copyright (C) 1988-2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Reading makefiles...
Updating makefiles....
Updating goal targets....
File '__all' does not exist.
File 'all' does not exist.
File 'autoksyms_recursive' does not exist.
Must remake target 'autoksyms_recursive'.
Successfully remade target file 'autoksyms_recursive'.
File 'descend' does not exist.
File 'init' does not exist.
File 'prepare' does not exist.
File 'prepare0' does not exist.
File 'archprepare' does not exist.
File 'outputmakefile' does not exist.
Must remake target 'outputmakefile'.
Successfully remade target file 'outputmakefile'.
File 'archheaders' does not exist.
Must remake target 'archheaders'.
File 'archscripts' does not exist.
File 'scripts_basic' does not exist.
Must remake target 'scripts_basic'.
GNU Make 4.3
Built for x86_64-redhat-linux-gnu
Copyright (C) 1988-2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Reading makefiles...
Updating makefiles....
Updating goal targets....
File 'all' does not exist.
File 'FORCE' does not exist.
Must remake target 'FORCE'.
Successfully remade target file 'FORCE'.
Prerequisite 'FORCE' of target 'arch/x86/include/generated/uapi/asm/unistd_32.h' does not exist.
Must remake target 'arch/x86/include/generated/uapi/asm/unistd_32.h'.
Successfully remade target file 'arch/x86/include/generated/uapi/asm/unistd_32.h'.
Prerequisite 'FORCE' of target 'arch/x86/include/generated/uapi/asm/unistd_64.h' does not exist.
Must remake target 'arch/x86/include/generated/uapi/asm/unistd_64.h'.
Successfully remade target file 'arch/x86/include/generated/uapi/asm/unistd_64.h'.
Prerequisite 'FORCE' of target 'arch/x86/include/generated/uapi/asm/unistd_x32.h' does not exist.
Must remake target 'arch/x86/include/generated/uapi/asm/unistd_x32.h'.
Successfully remade target file 'arch/x86/include/generated/uapi/asm/unistd_x32.h'.
Prerequisite 'FORCE' of target 'arch/x86/include/generated/asm/syscalls_32.h' does not exist.
Must remake target 'arch/x86/include/generated/asm/syscalls_32.h'.
Successfully remade target file 'arch/x86/include/generated/asm/syscalls_32.h'.
Prerequisite 'FORCE' of target 'arch/x86/include/generated/asm/unistd_32_ia32.h' does not exist.
Must remake target 'arch/x86/include/generated/asm/unistd_32_ia32.h'.
Successfully remade target file 'arch/x86/include/generated/asm/unistd_32_ia32.h'.
Prerequisite 'FORCE' of target 'arch/x86/include/generated/asm/unistd_64_x32.h' does not exist.
Must remake target 'arch/x86/include/generated/asm/unistd_64_x32.h'.
Successfully remade target file 'arch/x86/include/generated/asm/unistd_64_x32.h'.
Prerequisite 'FORCE' of target 'arch/x86/include/generated/asm/syscalls_64.h' does not exist.
Must remake target 'arch/x86/include/generated/asm/syscalls_64.h'.
Successfully remade target file 'arch/x86/include/generated/asm/syscalls_64.h'.
Prerequisite 'FORCE' of target 'arch/x86/include/generated/asm/xen-hypercalls.h' does not exist.
Must remake target 'arch/x86/include/generated/asm/xen-hypercalls.h'.
Successfully remade target file 'arch/x86/include/generated/asm/xen-hypercalls.h'.