kbuild-progress

Show progress information for Kbuild as below.

18.78% ETA 0:04:56   CC      net/netfilter/nf_conntrack_proto_udp.o
18.86% ETA 0:04:56   CC      lib/list_sort.o
18.86% ETA 0:04:56   AS      arch/x86/lib/memset_64.o
18.94% ETA 0:04:56   CC      arch/x86/lib/misc.o
18.94% ETA 0:04:56   AS      arch/x86/lib/putuser.o
19.02% ETA 0:04:56   CC      lib/uuid.o
19.02% ETA 0:04:56   AS      arch/x86/lib/retpoline.o
19.10% ETA 0:04:56   CC      arch/x86/lib/usercopy.o
19.18% ETA 0:04:56   CC      lib/iov_iter.o
19.26% ETA 0:04:53   CC      net/ipv4/ip_input.o
19.34% ETA 0:04:53   CC      fs/direct-io.o
19.42% ETA 0:04:53   CC      drivers/acpi/fan.o

Dependency

• Python 3

(Also works with Python2. Rewrite the shebang in the script file if necessary.)

Usage

./kbuild-progress [make args]

Use ./kbuild-progress instead of make command

Example

$ cd linux-x.x.x
$ ./(path to kbuild-progress dir)/kbuild-progress -j4 vmlinux

How it works

1. Use the -n option of the make command to know in advance what kind of work is required for C compilation of kernel build. This work takes 1 second (make allnoconfig)* to 14 seconds (make allyesconfig)*, often 2.5 seconds(make defconfig)*.
2. Run the actual build without the -n option. Based on step 1 information and the messages displayed in the actual build, kbuild-progress displays progress information.

*Measured with my ThinkPad E14

Licence

GPL-2.0