Build linux kernel

Get a copy of source code
Take a copy of the linux kernel source repository via git software
git clone --depth=1 https://github.com/torvalds/linux
or download a zip file from this link - https://github.com/torvalds/linux/archive/refs/heads/master.zip​
Generate .config file
make menuconfig
menuconfig options
Here are the images of the some menuconfig options chosen.
menuconfig
Options
kernel .config support
Module unloading
Kernel Function Tracer
​
Run make help to get the hints and options for building.
build a image
After that do, make bzImage.
/workspace/linux (master) $ make bzImage
​
  SYSHDR  arch/x86/include/generated/uapi/asm/unistd_32.h
...
  GZIP    arch/x86/boot/compressed/vmlinux.bin.gz
  HOSTCC  arch/x86/boot/compressed/mkpiggy
  MKPIGGY arch/x86/boot/compressed/piggy.S
  AS      arch/x86/boot/compressed/piggy.o
  CC      arch/x86/boot/compressed/cpuflags.o
  CC      arch/x86/boot/compressed/early_serial_console.o
  CC      arch/x86/boot/compressed/kaslr.o
  CC      arch/x86/boot/compressed/ident_map_64.o
  CC      arch/x86/boot/compressed/idt_64.o
  AS      arch/x86/boot/compressed/idt_handlers_64.o
  AS      arch/x86/boot/compressed/mem_encrypt.o
  CC      arch/x86/boot/compressed/pgtable_64.o
  CC      arch/x86/boot/compressed/acpi.o
  AS      arch/x86/boot/compressed/efi_thunk_64.o
  LD      arch/x86/boot/compressed/vmlinux
  ZOFFSET arch/x86/boot/zoffset.h
  AS      arch/x86/boot/header.o
  CC      arch/x86/boot/main.o
  CC      arch/x86/boot/memory.o
  CC      arch/x86/boot/pm.o
  AS      arch/x86/boot/pmjump.o
  CC      arch/x86/boot/printf.o
  CC      arch/x86/boot/regs.o
  CC      arch/x86/boot/string.o
  CC      arch/x86/boot/tty.o
  CC      arch/x86/boot/video.o
  CC      arch/x86/boot/video-mode.o
  CC      arch/x86/boot/version.o
  CC      arch/x86/boot/video-vga.o
  CC      arch/x86/boot/video-vesa.o
  CC      arch/x86/boot/video-bios.o
  LD      arch/x86/boot/setup.elf
  OBJCOPY arch/x86/boot/setup.bin
  OBJCOPY arch/x86/boot/vmlinux.bin
  HOSTCC  arch/x86/boot/tools/build
  BUILD   arch/x86/boot/bzImage
Kernel: arch/x86/boot/bzImage is ready  (#1)
/workspace/linux (master) $ 
Note Kernel: arch/x86/boot/bzImage is ready (#1).
​
Errors
fatal error: libelf.h: No such file or directory
/workspace/linux (master) $ make
  SYSHDR  arch/x86/include/generated/uapi/asm/unistd_32.h
...
  DESCEND objtool
<stdin>:1:10: fatal error: libelf.h: No such file or directory
compilation terminated.
  HOSTCC  /workspace/linux/tools/objtool/fixdep.o
...
  AR      /workspace/linux/tools/objtool/libsubcmd.a
  CC      /workspace/linux/tools/objtool/arch/x86/special.o
In file included from /workspace/linux/tools/objtool/include/objtool/objtool.h:13,
                 from /workspace/linux/tools/objtool/include/objtool/arch.h:11,
                 from /workspace/linux/tools/objtool/include/objtool/check.h:11,
                 from /workspace/linux/tools/objtool/include/objtool/special.h:10,
                 from arch/x86/special.c:4:
/workspace/linux/tools/objtool/include/objtool/elf.h:10:10: fatal error: gelf.h: No such file or directory
   10 | #include <gelf.h>
      |          ^~~~~~~~
compilation terminated.
make[4]: *** [/workspace/linux/tools/build/Makefile.build:97: /workspace/linux/tools/objtool/arch/x86/special.o] Error 1
make[3]: *** [/workspace/linux/tools/build/Makefile.build:139: arch/x86] Error 2
make[2]: *** [Makefile:56: /workspace/linux/tools/objtool/objtool-in.o] Error 2
make[1]: *** [Makefile:69: objtool] Error 2
make: *** [Makefile:1337: tools/objtool] Error 2
Install libelf-dev package
Video
Last modified 1yr ago